. The street railway review . o o C Fitted to ILathe Spindle-^ _o__lL_ o. y I, e rliiiea Meatf 5. ■5r H*^V/.-i 1-16 in. from the standard, and lo obtain an .iccuniU Imre a sep-arate jig or chuck must be provided for practically every set ofliearings used. To get away from this difficulty several sho])> are now using xmicform of universal chuck. Two of these were described in the Review for June 15. 368. The Capital Traction Co. of Washington, IJ. C, uses thejig shown in Fig. I. Its interior diameter is slightly larger thanthat of the l>earing boxes, the box to be Ixircd being s
. The street railway review . o o C Fitted to ILathe Spindle-^ _o__lL_ o. y I, e rliiiea Meatf 5. ■5r H*^V/.-i 1-16 in. from the standard, and lo obtain an .iccuniU Imre a sep-arate jig or chuck must be provided for practically every set ofliearings used. To get away from this difficulty several sho])> are now using xmicform of universal chuck. Two of these were described in the Review for June 15. 368. The Capital Traction Co. of Washington, IJ. C, uses thejig shown in Fig. I. Its interior diameter is slightly larger thanthat of the l>earing boxes, the box to be Ixircd being supported onthe point of eight milled head thumb screws, and does not touch. the inside wall of the jig. Uy adjusting the screws the box canbe brought to perfect alignment on the athe. A somewhat similar device is used at the shops of the Lynn StBoston K. R., and is shown in Fig. 2. In this case the bearing carried on the p<jints of screws which are adjusted with the useof a wrench. The jig is made in two halves, hinged at one side,and held by a bolt and nnt at the other side. By having the upper half of the jig hinged in this way, the lime required lo put in iIk-bearing shells and remove them from the lathe is materially another form of universal jig is used at the street railwayrepair shops in .Atlanta, Ga. This is shown in Fig. 3 and is madeof cast iron. It narrow slots cut in its walls extending froma point just below the shoulder of the jig clear down to the largerend and rendering the walls capable of considerable outer face of the jig is threaded for a distance of about I/i the larger end. lliese
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
