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Tuesday, November 10, 2015

Image from page 365 of "Railway mechanical engineer" (1916)

Verify out these internal cylindrical grinding pictures:

Image from web page 365 of “Railway mechanical engineer” (1916)

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Identifier: railwaymechanica96newy
Title: Railway mechanical engineer
Year: 1916 (1910s)
Authors:
Subjects: Railroad engineering Engineering Railroads Railroad vehicles
Publisher: New York, N.Y. : Simmons-Boardman Pub. Co
Contributing Library: Carnegie Library of Pittsburgh
Digitizing Sponsor: Lyrasis Members and Sloan Foundation

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Typlcai Set-Up for Grinding a Little Pin particular throw-blocks adapt this machine for crankshaft perform.The truth that it is a universal machine enables it to do alarge assortment of function, like straight cylindrical grindingand the grinding of abrupt tapers. With the tool rest, it grinds cutters and reamers, boring bars and other tools. Theadvantages this machine possesses over previous models liein the wider range of perform it will cover. With the internal

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Brown &amp Sharpe Universal and Crankshaft Grinding IVIachlne attachment and tool rest illustrated, it is capable of all thework done by previous models and is also adapted to grind-ing all automotive components except cylinders en bloc. The No. 4 grinder has a capacity to deal with function 60 in. June, 1922 RAILWAY MECHANICAL ENGINEER 353 in length with a swing of 20 J4 in. in diameter and 15 yi in.more than the water guards. The wheel spindle has hardened 4 k Arrangement for Internal Grinding bearings ground and lapped, operating in self-alining phos-phor bronze boxes offered with means of compensation forwear. The automatic cross feed will move the wheel from.00025 to .004 in. at every reversal of the table as preferred. It is automatically disengaged when the operate is to size. Thetable travel is automatic, getting controlled by easily adjust-in a position dogs. The speeds and feeds of the wheel and workand table feed are entirely independent of each and every other. Asingle lever begins and stops the rotation of the operate

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Image from web page 365 of “Railway mechanical engineer” (1916)

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Identifier: railwaymechanica96newy
Title: Railway mechanical engineer
Year: 1916 (1910s)
Authors:
Subjects: Railroad engineering Engineering Railroads Railroad cars
Publisher: New York, N.Y. : Simmons-Boardman Pub. Co
Contributing Library: Carnegie Library of Pittsburgh
Digitizing Sponsor: Lyrasis Members and Sloan Foundation

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iction clutches, running in oil with manage handles conveniently positioned 1 at the apron and one at thehead finish of the lathe. The clutches call for no adjustmentat any time and are made to pull a tiny a lot more than theload imposed. In addition, these lathes incorporate other Lehmann characteristics, ^■T^ * ■■ I WSSSUmmm 9 r- ^ -^■^•^-^ • J ,•■&gt • M L|gj I^R A ^^w^^g ^fii^^i ^ Lehmann Portable Lathe with Compact Motor Drive Arrangement such as the patent quick adjust mechanism, tailstock spindlelocking device, rod and screw shift, etc., which have beendescribed at different times in the Railway MechanicalEngineer. Universal and Crankshaft Grinding Machine ANEW grinder, recognized as the No. 4 universal andcrankshaft grinding machine, has been created bythe Brown &amp Sharpe Manufacturing Organization, Provi-dence, R. I. It is primarily a universal machine, but adaptedto the grinding of crankshafts. Raising blocks under theheadstock and footstock and a wheel of large diameter, also

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Typlcai Set-Up for Grinding a Small Pin specific throw-blocks adapt this machine for crankshaft function.The truth that it is a universal machine enables it to do alarge variety of work, including straight cylindrical grindingand the grinding of abrupt tapers. With the tool rest, it grinds cutters and reamers, boring bars and other tools. Theadvantages this machine possesses over previous models liein the wider variety of work it will cover. With the internal

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Image from web page 119 of “American engineer and railroad journal” (1893)

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Identifier: americanengineer79newy
Title: American engineer and railroad journal
Year: 1893 (1890s)
Authors:
Subjects: Railroad engineering Engineering Railroads Railroad automobiles
Publisher: New York : M.N. Forney
Contributing Library: Carnegie Library of Pittsburgh
Digitizing Sponsor: Lyrasis Members and Sloan Foundation

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the shifter. The clutches may be engaged ordisengaged even though the machine Is in motion, thereby allowingperator to drill a hole, remove the drill and substitute atap and tap the hole with no stopping the machine. Thespindle has a swift reverse speed of two to 1. These machines are created in 24, 28, 32, 3ti and 42-in. sizesby the Cincinnati Machine Tool Company of Cincinnati, whomake a st rict i pei ia II j of upright drills. The device consists of a %-in. diameter steel shaft, which isenclosed inside and arranged to revolve inside a steel tubeof 1 in. inside diameter and 40 ins. lengthy. The shaft is sup-ported and provided bearing by bronze bushings pressed into theends of the tube. One end of the shaft carries an emery wheel,which may vary in diameter from 2 ins. upward, according tothe character of the operate essential the other finish carries adriving pulley for a 1 in. belt. The grinder is bolted on the carriage of an ordinary enginelathe, with the axis of the grinding shaft meticulously paralleled

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TirEHMAi Storagi fob Locomotives.—Mr. Druill Halpinssystem of heat storage has been applied to a locomotive boiler of the i hern Railway of England. A cylindrical e tank is placed on top of the boiler, to which it isconnected by indicates of a pipe The r.-eit water, heated to theemperature as thai of the boiler, is passed by means of thisr Below, I he heal ii am taken from the boiler when the engim anding or the afetj valves are Mowing, in this waj a huge supplj of heat is accessible tohelp the boiler when running. In stationary practice a testby Professor Unvvin has shown a coal saving of 19 per cent.with this program. INTERNAL SURFACE GRINDER FOR NARY LATHE. to the center line of the lathe, by implies of the clamp-blockshown in the engraving. The cylinder or tube to be finishedby grinding is set up and centered in the lathe, with a single endin the cnuck and the outer finish supported by a steady rest.The cylinder is rotated gradually by the lathe in one direction of rotation, whilst the emery wheel is

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Sunday, November 8, 2015

Image from web page 243 of "The butterflies of the eastern United States for the use of classes in zoology, and private students" (1914)

Array

Tuesday, October 20, 2015

Image from page 463 of "Farm machinery and farm motors" (1908)

Some cool gear grinding photos:

Image from web page 463 of “Farm machinery and farm motors” (1908)

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Identifier: farmmachineryfar00davi
Title: Farm machinery and farm motors
Year: 1908 (1900s)
Authors: Davidson, Jay Brownlee Chase, Leon Wilson
Subjects: Agricultural machinery
Publisher: New York, O. Judd firm [etc., etc.]
Contributing Library: The Library of Congress
Digitizing Sponsor: Sloan Foundation

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turn will propel the drivewheels. But if the drivewheel attached to pinion Ghappens to travel faster thanthat attached to shaft F the^^^^. , pinion C will revolve and ^9^^EB^^^£.^^SJliL ^^^^^ ^^^ pinion A will propel^^^^S»^BSi^rtF«»c the gearing. Typically there are some quite serious jerks onthe transmission gearing ofan engine and some com-panies are now inserting intheir compensating gears aset of springs which take this jar off the gearing. 590. Traction.—Any traction engine has power enoughto propel itself more than the road and through the fields pro-vided the drive wheels do not slip. Consequently thematter of the wheels adhering to the ground is an im-portant part. Where the road surface is firm there is nodifficulty but in a soft field wonderful difficulty is experienceddue to the fact that the lugs of the drive wheels tear upthe earth and enable the drive wheels to move withoutmoving the engine. It is a typical belief that the driv^ewheel which has the sharpest lug is the a single which will

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FIG- 335—COMPENSATING GEARS 452 FARM MOTORS adhere to the ground the ideal. In almost all circumstances thisis not true, considering that the lug which is sharp is really apt to cutthrough the earth, while one particular which is dull or round anddoes not have such penetrating impact will pack the earthdown and as a result make far more resistance for itself whilepassing by means of the earth. Nearly each and every engine builderhas a style of lug of his own. Fig. 338 shows a newstyle of traction wheel which seems to be giving verygood final results. The more weight that can be put on tothe drive wheels of an engine the much better it will adhereto the ground, supplying the surface is firm sufficient tosupport the load. This makes the matter of place of the major axles upon theboiler an important element.When the boiler is rear-mounted it is apparent thatmore of the weight isthrown upon the frontwheels, which act as aguide, than when thePjg ^,g boiler is side-mounted. Hence a single would be led tobelieve that the side-mounted traction engine will havebetter

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Image from page 665 of “Electric railway overview” (1906)

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Identifier: electricrailwayr18amer
Title: Electric railway review
Year: 1906 (1900s)
Authors: American Street and Interurban Railway Association
Subjects: Street-railroads Electric railroads
Publisher: Chicago : Wilson Co
Contributing Library: Carnegie Library of Pittsburgh
Digitizing Sponsor: Lyrasis Members and Sloan Foundation

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Is considerably lighter than the regulartype-C brake of the same gear ratio of which it is a modifica-tion. The brake has been on the industry significantly less than a month. TITAN GEARS. The material composing the Titan gears manufactured bythe Atha Steel Casting Company, of Newark, N. J., is so difficult that it cannot be reduce by anytool steel yet-recognized. Allfinished surfaces, such asteeth and hub-fit, are ac-curately ground to tem-plates. Although the ma-terial is difficult, it is notbrittle on the contrary itis so hard that test pieceshave been bent coldthrough an angle of 180degrees with no showingfracture. The gear is madesolid with the teeth castin, then a special machinegrinds the periphery of theteeth to the accurate di-ameter. One more machinegrinds every tooth to themaster, while nonetheless one more machine grinds out the hub-match and faces each sides. A gray iron or soft steel hub is thenpressed in at a pressure of 35 to 4.5 tons per square inch,and is bored out to the suitable size for forcing on the axle.

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Titan Gear. When arrangements were becoming made for the Louisianapurchase exposition, held in St. Louis, Mo., in 1904, a specialcommittee was appointed to think about the query of streetpaving. Soon after an exhaustive investigation Bitulithic wasselected for Lindell boulevard, the main thoroughfare whichled to the principal entrance to the exposition. The wisdomof this special committee later was indicated by the superiorjury of awards, which granted to Bitulithic the gold medalas the nearest approach to the best pavement. The James-town boulevard commission also chosen Bitulithic above allothers for the boulevard to the Jamestown, (Va.), expositiongrounds. A rail bond with a conductivity of two-thirds that of therail is obtained only beneath exceptional circumstances, but arail bond of such conductivity that the drop of prospective acrosstwo feet of bonded rail is less than the drop of potentialacross two feet of solid rail would undoubtedly appear to be theideal bond. Harold P. Brown, 120 Libe

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Saturday, September 5, 2015

Image from web page 104 of "Electrical news and engineering" (1891)

Verify out these electrical discharge grinding images:

Image from page 104 of “Electrical news and engineering” (1891)

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Identifier: electricalnewsen27donm
Title: Electrical news and engineering
Year: 1891 (1890s)
Authors:
Subjects: Electrical engineering
Publisher: Don Mills, Ont. [and so forth.] Southam-Maclean Publications
Contributing Library: Engineering – University of Toronto
Digitizing Sponsor: University of Toronto

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se) King Ed-ward, 1.231 lb. (153 and 117 per cent, increase) Summit. 1.45111). (7.5 increase three.1 per cent, decrease). With regard to the Summits grown on Plot C, it shouldbe noted that the provide wire from the shed to the dischargewire was passed over this ground, at a height of 8 ft. Other vegetables had been grown, but, owing to late planting,no try was produced to get comparative result. Peas,beans, white turnips, swedes, and beet did properly carrots andonions have been very poor, both in top quality and quantity. Greens did nicely, and it was noticeable that these under electroculturewere not attacked Ijy caterpillar to the very same extent as thoseunder all-natural manage. No manure or fertilizer was utilized. The electrical equipment consisted of a ten in. coil, withmercury break-current interrupter and Lodge valves, housedin a wooden shed, 25 yards from the plot, and an earth plateclose to the plot. No. 30 s.w.g. galvanized steel wires wereused for the discharge, placed 15 ft. apart and hooked to 7/16

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A&ampC. Handle Plots B. Electro-culture Plot D. Shed. E. Earth Plate. ScaleFtK) 75 50 ZS one hundred Feet. Fg. 1—Plan of Ground Employed in. s.w.g. span wire attached to insulators, and the whole sup-ported by six poles. To each of the poles was fixed a wrought-iron bar, which enabled the discharge wire to be placed at anydistance from the ground among two ft. 6 in and six ft. six in.The apparatus was supplied with five amperes at 310 volts d.c,wliich would preserve a spark 54 in. long, when an earth wirewas placed that distance from any element of the discharge net-perform. At the commencement the discharge wire was placed asnear as possible to the ground, and, as the crop grew, raised Hours71- six- 5 ■ n L four- 3- J n If n r 1 ■ r nJ r u ^1 Fig. 2—Diagram showing hours per day discharge used to about six in. above the foliage. hen climate and other con-ditions allowed, the discharge was utilised from 6 a.m. to 8 a.m.and 6 p.m. to eight p.m. everyday, and during dull days in between mid-day and 2 p.m. In all the

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Image from web page 373 of “Journal of electricity, energy, and gas” (1899)

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Identifier: journalofele241251910paci
Title: Journal of electrical energy, power, and gas
Year: 1899 (1890s)
Authors: Pacific Coast Electric Transmission Association
Subjects: Electrical engineering Electricity Gas manufacture and works
Publisher: San Francisco : Technical Pub. Co.
Contributing Library: San Francisco Public Library
Digitizing Sponsor: California State Library Califa/LSTA Grant

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ween the energy-houseand the header. The pipe-lines, like the gate and butterfly valves,are 5 ft. inside diameter. They are sheet steel, weldedon the longitudinal seam, and vary in thickness from13/32 in. at the top to 43/64 in. at the reduce finish, was made in Philadelphia, the latter was riveted to-gether on the ground. The pipe-lines are supportedat intervals by concrete carried nicely down into thebedrock. The typical length is 700 ft. The Energy-House. The web site where the energy-home stands was orig-inally a steep mountainside, but was selected as itofifered a excellent strong rock foundation. A coffer-damwas erected, extending into the river to facilitate ex-cavation, which was carried down till all possibilityof any broken surface rock would be eliminated. Thebuilding is 183 ft. 4 in. lengthy and 71 ft. six in. wide. The foundations are of solid concrete under theheavy machinery, but the rear of the creating is sup- 324 ^.A A i! JOURNAL OF Electricity, Energy AND GAS [Vol. XXIV-No. 15 T I I ri: m

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ra^ft^i. 00^ Fi.A/v ^t (T ported on concrete columns and arches, the whole con-stituting a piece of perform calculated to stand for alltime. The heavy concrete function is carried up to themain floor. The structure below the primary floor isdivided longitudinally by a heavy supporting wall andthe front also consists of such a wall. The penstocksand primary water-wheels are carried straight on the con-crete foundation, the draft-tubes passing down throughit and discharging under the front wall. The step-bearings and auxiliaries are carried on an arch floor,which is supported amongst the front and longitudinalwalls, and by transverse walls, although the generatorswhich are on the principal floor are also carried on archessimilarly supported. The creating above the major floor has a steelframe with reinforced concrete walls, which supporta steel truss reinforced concrete slab roof. It is dividedinto two longitudinal bays by a series of steel columns.A 50-ton, electrically-operated traveling crane forhandling

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Image from web page 118 of “Electrical news and engineering” (1891)

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Identifier: electricalnewsen27donm
Title: Electrical news and engineering
Year: 1891 (1890s)
Authors:
Subjects: Electrical engineering
Publisher: Don Mills, Ont. [etc.] Southam-Maclean Publications
Contributing Library: Engineering – University of Toronto
Digitizing Sponsor: University of Toronto

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th plug, all mounted on a metal base to forma compact unit, which needs but 48 x 20 inches floor space.T!ie lieight more than all is 40 inches. The air compressor is theair-cooled, two-stage type. The low stress cylinder is three x3 inches in size and the higher stress cylinder is IJ^ x 3inches. The operating stress is 300 pounds per square inch,and the capacity of the compressor is four cubic feet per minute.The compressor operates at 250 to 300 r.p.ni. It is providedwith an intake silencer, which muffles tlie intake noise andtends to force air into the intake valve. When the air in themain tank is raised to the appropriate stress the automaticswitch stops the motor and operates the automatic pressurerelease, which opens beginning tank to the atmosphere. Whenthe automatic switch again begins the motor it also closes thepressure release, and the compressor starts pumping againstno pressure. It always begins with no strain. When the airin the starting tank attains a pressure slightly in excess of

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that in the primary tank (requiring about ten seconds) it opensthe check valve and charges this tank till the appropriate pres-sure is reached, when the operations are repeated. A trap isprovided in the starting tank, which extracts any moisture oroil that could be discharged from the compressor, assuringpure, dry air, cost-free from oil. The buffing and grinding head issuitable for wheels of 8-inch diameter. The outfit is equippedwith a a single horse-power Robbins &amp Myers motor, which per-mits the compressor and buffing head to operate at the sametime. Outfits with no this buffing head are equipped witli aone-lialf horse-energy R &amp M motor. New Flood-Lighting Projector for Regular Mazda C LampsA new flood-lighting projector, made for use of 300to 1,000-watt common Mazda C lainps, has been placedon the industry by the George Cutter Organization, South Bend,Ind. It is named the Standard Flood-Lighting Projector.The new unit has the identical common construction features asthe Cutter Universal project

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Monday, August 24, 2015

Image from web page 542 of "Electrical news and engineering" (1891)

Some cool electrical discharge grinding images:

Image from page 542 of “Electrical news and engineering” (1891)

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Identifier: electricalnewsen31donm
Title: Electrical news and engineering
Year: 1891 (1890s)
Authors:
Subjects: Electrical engineering
Publisher: Don Mills, Ont. [etc.] Southam-Maclean Publications
Contributing Library: Engineering – University of Toronto
Digitizing Sponsor: University of Toronto

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the energy losses of distribution by maintaining down a leakagefrom the conductor to the insulator pin. The clamps aremade of malleable iron, galvanized by the hot dipping pro-cess. Each halves are alike and interchangeable. The manu-facturers claim that these clamps will not break the glass,as there is but 1 bolt and the covering of the conductor re-ceives the stress that may possibly outcome from unequal expansion. Direct-Current Lightning ArresterA direct existing electrolytic lightning arrester, for volt-age applications up to three,800 volts has been lately devel-oped by the Westinghouse Electric &amp Manufacturing Com-pany. The device contains one to twelve cells and is de-signed for car or station use on railway, energy and lightingcircuits. The building embodies two aluminum platesimmersed in a suitable inorganic electrolyte and supportedfrom a porcelain cover clamped by a zinc ring to a glass jar

Text Appearing After Image:
with a gasket placed bctvvcLii the porcelain cover and theglass jar. Hollow concentric cylinders produced from sheet aluminumform the plates, the outer cylinder or plate getting punched andupset at frequent intervals in order to allow free of charge circulation of the electrolyte inside the cell. Balancing resistors areused with arresters of a lot more than one particular cell. The arrestersare floated between the line and ground, so that a leakagecurrent of only a handful of milliamperes passes continually. Thisleakage current serves to preserve the film upon the aluminumplate or plates in proper order. The device is capalble ofpassing a surge present of roughly 1000 amp. at doublenormal voltage when the arrester is functioning and onearrester must be used for each .500 kw. of feeder bus, rotaryconverter or motor-generator capacity to which the arresteris connected. Any voltage in excess of normal line voltageis discharged promptly by means of the arrester. The arrestersare mounted and securely held in asbestos board and w

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Image from page 33 of “Electrical planet” (1883)

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Identifier: electricalworld43newy
Title: Electrical planet
Year: 1883 (1880s)
Authors:
Subjects: Electrical engineering
Publisher: [New York McGraw-Hill Pub. Co., etc.]
Contributing Library: Engineering – University of Toronto
Digitizing Sponsor: University of Toronto

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ft. in length, it ha- boonanchored at the center of each and every side of the boiler home. A double 20 40 60 80 100 vcys it to any essential point. This is in the nature of a travelingcrane, and its character can be readily understood from Fig. ten. Theashes are discharged in the basement into a pocket of a capacity of28 cu. ft., which travels on an overhead trolley. From this the ashesare dumped into a skip, which elevates them to the ash bin, fromwhich they iie automatically discharged into automobiles as preferred. .All ofthe machinery is operated by direct-existing motors. The coal-hand-ling and ash-conveying systems had been de&gtigned by Heyl and Patter-son, of Pittsburg. Boiler residence No. i in its common attributes is comparable to the onealready described. This includes 16 Cahall boilers, which are pro-vided with grates and gas fired. Coal is utilized whenever the blastfurnace gas is of an inferior quality. Boiler home No. three, which is.south of the pumping station, is 65 . 184 ft. in size. This will con-

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Unl^adtnq Machine-^ ^~^ v s^~nJ: Fig. 5.—Section By means of Ore Dock and Blast Furnaces. bend is provided in each line, connecting a battery with the mainheader to take care of expansion. A really lengthy elbow is provided ateach boiler, which, by closing two valves located in between the headerand the former, can be completely removed to permit the removal oftubes. A monitor in two halves of a bigger diameter than the boileris bolted to the roof more than every. This can be entirely removed forrepairs of what ever nature, and also serves as a ventilator. Allsteam valves 12 in. long or bigger are by-passed. Drips under oper-ating situations are exposed, and eight-in. cast-iron pipe is utilized forblow-offs in the ground -leading to the sewers. Compressed air is tain 32 Cahall boilers gas fired, and will furnish steam to several en-gines in the Bessemer rail mill. As already stated, each and every pair of blast furnaces will have its ownpower home, containing an gear of gas engines for drivingblower engi

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Image from web page 377 of “Journal of electricity, power, and gas” (1899)

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Identifier: journalofele323271914paci
Title: Journal of electrical energy, power, and gas
Year: 1899 (1890s)
Authors: Pacific Coast Electric Transmission Association
Subjects: Electrical engineering Electrical energy Gas manufacture and performs
Publisher: San Francisco : Technical Pub. Co.
Contributing Library: San Francisco Public Library
Digitizing Sponsor: California State Library Califa/LSTA Grant

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_■. w.-.rti2najii&gtfe^ j«,£5&ltaitaMBMH Towers at Tiny Falls Showing Rock Anchorages. beneath the supervision of an inspector employed by thepurchaser, who kept a close supervision of the work-manship and produced frequent tests on samples selectedby him. A single of the 50 ft. towers was erected at thecontractors operates for inspection and to prove the cor-rectness of the style was subjected to all the stressesprovided for in the specifications. Ground Wires. Two ground wires are supplied and they are at-tached both mechanically and electrically to the topof the towers. Each ground wire consists of a ^ in.diam., seven strand Siemens-Martin steel cable hav-ing an ultimate strength of about 9000 lb. and anelastic limit of 5500 lb. These ground wires are pro-vided to afford protection from lightning discharges.No matter whether they do or do not furnish this protection theauthor is unable to state, from his personal encounter,but believes that they do. A lot of engineers claim thatowing to the ground wires

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Wednesday, August 19, 2015

Image from page 78 of "The Röntgen rays in health-related work" (1907)

A handful of nice electrical discharge wire cutting pictures I located:

Image from page 78 of “The Röntgen rays in medical work” (1907)

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Identifier: rntgenraysinmedi1907wals
Title: The Röntgen rays in medical operate
Year: 1907 (1900s)
Authors: Walsh, David
Subjects: X-rays Radiography X-Rays Radiography
Publisher: New York : William Wood
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Information Commons and Harvard Medical School

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charge from the mains with a lamp in series, the batterymust be connected so that the present which goes through it mustalso go via the lamp. In the case of a lamp suspended by aflexible wire the circumstances would be met by cutting a single of the twostrands of the double wire, and untwisting the cut ends for a fewinches, so as to give sufficient length for connection to the two ends THE ELECTRICAL APPARATUS 57 of the battery. As a single of the severed ends is optimistic and theother is adverse, there will be a correct and a wrong way of con-necting up. In the former the path of the present from themain will be opposed to that of the battery, the lamp will burnmore dimly, and the battery will obtain a charge. In the latter itwill not acquire a charge, but, on the contrary, it will discharge,reinforcing the existing of the primary, and the lamp in the circuit willburn too brightly. The effect on the lamp is the simplest guide tothe appropriate way of connecting in the battery, and when once deter-

Text Appearing Following Image:
Fig. 31.—Charging by way of a Lamp-Resistance (Biggs and Co.). mined the ends could be marked in some way for future guidance.Another way of testing the polarity of the ends of wire is to uselitmus-paper the paper will be reddened exactly where it touches thepositive pole, and turn blue exactly where it touches the adverse. If, rather of contemplating a flexible wire divided as just described,we think about a piece of electric light wiring enclosed in the ordinarywood casing, it will be observed that the very same results can be obtainedby removing a couple of inches of the casing cover a single of the two wirescan then be cut, and the ends bent up a couple of inches apart, and 58 THE RONTGEN RA YS IN Health-related Function brought by way of holes in the cover, exactly where they could be attachedto binding screws for the sake of neatness. The battery can thenbe attached to these binding screws by signifies of wires when it iswished to charge, and when charging is not in progress the batterycan be detached and removed, and the binding screws directlycon

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Image from web page 239 of “Electric railway gazette” (1895)

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Identifier: electricrailwayg10newy
Title: Electric railway gazette
Year: 1895 (1890s)
Authors:
Subjects: Electric railroads
Publisher: New York : [W.J. Johnston Co.]
Contributing Library: MIT Libraries
Digitizing Sponsor: MIT Libraries

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mproperprocedure asserting that the proposed consolida-tion never ever came just before any stockholders meetingot cither the Kansas City or Grand Avenue Cable BATffilFICATIONS IN A LIGHTNING DIS-CHARGE. In the course of his paper on lightning ar-resters prior to a current meeting of the AmericanInstitute of Electrical Engineers, Alexander JayWurts presented a photograph of a lightning dis-charge showing ramifications wandering off fromthe main path, as he stated, in a seemingly aimlessmanner. Mr. Wurts remarked that he was in-clined to think that at instances the ramificationsfrom the principal discharge found their way intoelectrical circuits. The figure illustrates a curi-ous frealc which is attributed to this cause. Inthe cut, T represents an overhead trolley wire,on either side of which are wooden poles H is a,bell-shaped insulator produced of compressed micaand shellac. These insulators very easily withstand anelectric strain of 13,000 volts M is an iron ringholding the span wire to the pole 75 is a branch

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CURIOUS FREAK OF LIGHTNING. circuit feeding present to a group of lamps 17,and £ is a lightning arrester in its discharge cir-cuit g- is a group of lamps. The distance be-tween i/and B is about 50 feet. Soon after a violentthunder storm it was noticed that 1 of thesepoles had been shattered from the top down tothe iron ring, the remaining portion becoming unin-jured. This had baen carried out by lightning, and inthe opinion of the writer, by one particular of the ramifi-cations to which allusion has already been made.In any case, this discharge, what ever it may possibly havebeen, passed over the span wire to the bell insula-tor //, piercing it and breaking it into threepieces, then traveled along the trolley wire to B,exactly where it apparently divided, one part passing tothe group of lights &lt/, breaking them all, ten innumber, and the other part to earth through thearrester L, without ia any way interfering withthe group ot lights ./. It is very exceptional tonote that none of the pirts broken by this dis-charge show

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Friday, October 17, 2014

This artist had a robot print his selfie with ink created from his blood Ghost In ...

This artist had a robot print his selfie with ink created from his blood Ghost In …

The whole weird factor came about as a larger investigation into how Lawson could use a CNC milling machine in new techniques to generate his artworks. You&#39ll notice the blood is truly dispensed onto a brush controlled by the CNC&#39s robotic arm. 1 day as an&nbsp…
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Brad Flory column: Jackson&#39s new place for men and women who enjoy to make factors

A metal shop for machining, sheet-metal function, and welding is promised. Hopkins expects to obtain a donated three- or 4-axis CNC, a personal computer-controlled milling machine. Jackson Makerspace also has gear for pc-assisted design and a 3D printer.
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Wednesday, October 8, 2014

Image from page 1136 of "Le quincaillier (Janvier-Juin 1907)" (1907)

Some cool cnc manufacturing business photos:

Image from page 1136 of “Le quincaillier (Janvier-Juin 1907)” (1907)

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Identifier: lequincaijanjui1907mont
Title: Le quincaillier (Janvier-Juin 1907)
Year: 1907 (1900s)
Authors:
Subjects: Commerce
Publisher: Montréal :

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La Filiere a main quiCommence AisementetFinit plusaisement.Le Nouveau Syste-me. Vous trouverezquecestunBeaverassez sur. 15 jours. tuyau a la primary de Ecrivez pour notre offre particular dessai deVous ne pouvez pas prendre le temps de fileter un toute autre maniere. Des Beavers dautres Grandeurs seront bientot produits — )+ a ?/f— 2lA four — four/^ a 8— 8 a 12. Manufacture par Borden = Canadian Business Pept. B. 166 rue Adelaide ouest, Toronto. FANAUX BANNER COLD BLAST ET BRULEURS BANNER POUR LAMPES

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Bruleur Banner pour Kerosene. MANUFACTURES PAR Deux Articles quise Vendent. ChaqueMarchand devrait tenip les marchandises BANNER Elles attirent laclientele. Demandez-les a votreMarchand de Gros. Cnc Ontario Lantern and Camp Co.

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Thursday, October 2, 2014

Image from web page 636 of "Electrical planet" (1883)

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Image from page 636 of “Electrical globe” (1883)

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Identifier: electricalworld43newy
Title: Electrical planet
Year: 1883 (1880s)
Authors:
Subjects: Electrical engineering
Publisher: [New York McGraw-Hill Pub. Co., and so forth.]

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te created and in-stalled the switchboard and circuits. An enhanced type of a transformer major reduce-out made toprotect the higher-tension side of transformers is becoming introduced bythe Westinghouse Electric &amp Manufacturing Business. It is madeentirely of porcelain, and its kind is such that it has high insulatingand arc-breaking qualities. The plug to which the fuse is attachedprojects between the terminals, the upper end of it rising nicely intothe top of the block and interposing an eflfective barrier, and thusmaking it not possible to preserve an arc. The fuse is eleven inchesin length, making a long break, and is so placed that the vapors ofa discharge are blown down and out of the device and away from theterminals. The line wire is carried straight to the best of the device and at-tached to it as to an ordinary insulator, which it as a result displaces. Toreach the terminal the wire need to be bent about the edge of theblock and is so supported in an angle in between the terminal post ami

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FIGS. I .AXD 2.—TR.VXSFORMER PRIM.RV Reduce-OUT. the porcelain case that it can not be loosened by any swaying of thew-ire in the wind. The pug enters from the bottom. When it is raised into location apartial turn draws the knife blades on the plug into the jaws onthe block, stopping the plug from dropping out or becoming blown out. All reside parts are protected from the weather by the projectingedges of the block, and b putting the terminals nicely above its lowersurface, with no apertures in the side or best. A bend in the fusewire brings it into plain view at all instances, and it is hence attainable toobserve its condition with no removing the plug, guarding againstany liability of opening the circuit when there is a existing upon theline. It is fastened to the cross arm or other assistance by two screws, pass-ing via porcelain tubes which form a portion of the block. Ithas a rated capacity of 2,500 volts, 30 amp., and is little, light, easyto set up and to re-fuse. Electric Heat in Theatres. Th

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Image from page 542 of “Electrical news and engineering” (1891)

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Identifier: electricalnewsen31donm
Title: Electrical news and engineering
Year: 1891 (1890s)
Authors:
Subjects: Electrical engineering
Publisher: Don Mills, Ont. [and so on.] Southam-Maclean Publications

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film upon the aluminumplate or plates in proper order. The device is capalble ofpassing a surge present of around 1000 amp. at doublenormal voltage when the arrester is functioning and onearrester ought to be employed for every single .500 kw. of feeder bus, rotaryconverter or motor-generator capacity to which the arresteris connected. Any voltage in excess of regular line voltageis discharged promptly through the arrester. The arrestersare mounted and securely held in asbestos board and wool-fibre-lined cypress boxes. Fuel Electrofier The Bukolt Manufacturing Firm have not too long ago placedon the marketplace a device for heating and vaporizing gasolinefuel iby indicates of electric heat ahead of it reaches the cylinder.It is claimed that this is achieved by indicates of a heatcoil of special material which produces heat at the leastresistance. The cut depicts the arrangement of the apparatuswhich includes a wire ball forming a screen via whichthe fuel need to pass. This ball is heated red-hot and trans-

Text Appearing Following Image:
types the liquid into gas ready for explosion under cylinderpressure. The heat coil is placed and connected in betweenthe carburetor and manifold on the charging line betweenthe generator and battery. Favor 12 Gallon Tank as Common The thought of standardizing on a 13 gallon tank forelectric homes, suggested in a current problem by Mr. S. H. Ex-cell of Vernon, B. C, has met with considerable favor. Hereare a couple of letters from electric merchants: Ottawa, Aug. 11.Editor Electrical News, Relating to H. S. Excells suggestion for 12 gallon watertank for household use. We are of the opinion that the 12gallon tank would be a lot more advantageous from an economi-cal point of view, and would give enough hot water for or-dinary each and every day use. It would also reduce the cost of in-stallation. Standardizing on the 12 gallon electrically heatedwater tank would be a step in the appropriate path.Yours truly, P. E. March and Toronto, Aug. three.Editor Electrical News:-— We are very in accord with Mr. Excells su

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Image from page 400 of “The street railway assessment” (1891)

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Identifier: streetrailwayrev14amer
Title: The street railway evaluation
Year: 1891 (1890s)
Authors: American Street Railway Association Street Railway Accountants’ Association of America American Railway, Mechanical, and Electrical Association
Subjects: Street-railroads
Publisher: Chicago : Street Railway Review Pub. Co

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s, the water willaverage as higher as the pumps, although for a portion of the yearthe water level will be way above the pumps, ft might even go ashigh as the elevation of the condenser outlets at the main station, JlNE 20, 1904.] STREET RAILWAY REIEW. 381 £or this was the flood elevation of Could 31, 1903, and in this casethe pumps will merely have to operate against the friction head dueto the length of pipe and passage via condensers in maintaining upa circulation. All pump discharge pipes have effortless bends as Hieyleave the pumps and at the tees on the main discharge. At thetop of each pipe near the tees are gate valves, which not only servethe purpose of shutting off each and every pump from the main line, butof holding the main supply pipe full or i)rimed for the duration of a completeshut-down of the pumping station, or the cutting out of any pumpor other valve for repairs. Midway up the pump chamlier is a platform with iron floor grat-ings, and the beams of this floor carry also the iuternicdlate shaft ■j.u/on

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FIG. 1.&gt-DAMPKR MECHANISM iFLfE OIKNING Cxi ET.) bearings which take place near the intermediate couplings. All pumpchamber partition walls have doorways at this level which alloweasy access for the operators without having use of ladders. Just underthe main floor General Electric fle.vible shaft couplings are employed,supported by bearings each beneath and on the motor. At the topof every motor frame are thrust bearings, which arc automaticallyoiled from an oil pan on decrease frame by centrifugal force. Ihemotors are of the G. E. induction kind K, three-phase, 25 cycle,440 volts, and of two sizes, 125 ad 75 kw., each operating at .175r p m. The motor feet and footwear below them are provided withset screws to facilitate perfect alignment of motor and pump shafts,each vertically and horizontally. The compensators and switchesare situated at the west end of the station in a recess providedtherefor, below which is a wire connection chamber completely sep-arate from all water chambers. In thi-, the cable conduit

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Wednesday, August 27, 2014

VH1&#39s Masters of The Mix Hit with Copyright Lawsuit from Universal Music...Are ...

VH1"s Masters of The Mix Hit with Copyright Lawsuit from Universal Music…Are …

A new lawsuit from Universal Music may possibly throw a wrench in the gears of the system, even if it starts far away from the center of EDM culture. The label is alleging that VH1"s Masters of The Mix show did not appropriately license any of the music from the …
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Exclusive: SFX, MasterCard Announce Worldwide Multi-Year Partnership

Economic terms of the deal had been not disclosed, but the partnership is the very first financial solutions deal of its kind in the EDM category – or &quotEMC,&quot as SFX terms it (&quotelectronic music culture.&quot) Rollout of the partnership will commence in September …
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Drug-fueled, EDM-obsessed millennials are saving the music enterprise

Emergency room visits related to MDMA (namely variants like ecstasy and molly) among individuals under the age of 21 much more than doubled over a six-year period, the U.S. Substance Abuse and Mental Well being Solutions Administration stated back in November.
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Monday, August 25, 2014

Image from page 288 of "Railway master mechanic [microform]" (1895)

Some cool precision China grinding and sharpening images:

Image from page 288 of “Railway master mechanic [microform]” (1895)

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Identifier: railwaymastermec33newy
Title: Railway master mechanic [microform]
Year: 1895 (1890s)
Authors:
Subjects: Railroads Railroads
Publisher: New York : [Simmons-Boardman Pub. Corp.]

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.Represented by S. A. Crone, E. Strassburger, R. C. Fraser andC. E. Barrett. Bullard Car Door Equipment Company, Birmingham, Ala.—Car doors. Represented by R. G. Bullard and D. S. Walreven. Bullard China Machine Tool Company, Bridgeport, Conn.—Bullardvertical turret lathe in operation. Represented by S. H. Bullard,J. W. Bray, R. H. Snider, J. H. Van Yorx, Jr., and Wm. J. Alles. Eurroughs Adding China Machine Company, Detroit, Mich.—Bur-roughs adding and listing machines for all departments of rail-way work. Style 15 for motive power and general railway ac-counting; No. 11 for car accounting; No. 9 for division super-intendents and local freight accounts, and Nos. 7 and 6x forlocal freight, ticket and express accounts. Represented by F. A.Willard, Ward Gavett and E. G. Griffith. 1 J I i Exhibit of the Flannery Bolt Co. Exhibit of the Armstrong-Blum Mfg. Co. The smiling face of Mr.Blum may be seen nestling among the flowers. July. 1909. RAILWAY MASTER MECHANIC 275 JPJLT,ROLT^jL.y BRICATOR CO,

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Exhibit of Chicago Railway Equipment Co. Carborundum Company, Niagara Falls, N. Y.—Carborundumwheels; sharpening stones; rubbing bricks; carborundum paperand cloth; garnet paper; carborundum valve China grinding compound.Represented by George R. Rayner, W. W. Sanderson, R. B.Fuller, C. C. Schumaker and Chas. Nicholson. Cardwell China Manufacturing Company, Chicago, 111.—Cardwellrocker side bearings. Represented by J. R. Cardwell, John D.Ristine, C. H. Tobias and W. K. Grauser. Carnegie Steel Company, Pittsburg, Pa. Carter Iron Company, Pittsburg, Pa.—Stay-bolt iron; chaincable iron; engine bolt iron. Represented by W. C. Johnston,Christopher Murphy and Robert Spencer. Celfor Tool Company, Chicago, 111.—Celfor high-speed drills,reamers, countersinks, three-lipped drills, Rich flat drills, Celforduplex and precision chucks, reamer sockets, etc. Representedby E. B. Clark, William Brewster, M. L. Hanlin, W. E. McCabe,J. J. Dale, Chas. A. Bucher and Edwin B. Ross. Chase & Company, L. C, Bo

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