. American engineer . s jninched by tlie die D to the shapeshown at E. The two ends are then bent to a U-shape in abending box made with the two pieces /■, which are fastenedto the die B by l>4-in. holts. Two rolls are placed in thegrooves, as shown, and /i is placed on them with the tail of theT extending down between them and into the hole in B. It isthen forced down by the plunger G and takes the finished shapeas shown at //. These ends can be forged about 18 in. long,so as to be easily welded t>i tlie rod. FOR ECCENTRICS. The use of the jig shown in Fig. 7 for dri
. American engineer . s jninched by tlie die D to the shapeshown at E. The two ends are then bent to a U-shape in abending box made with the two pieces /■, which are fastenedto the die B by l>4-in. holts. Two rolls are placed in thegrooves, as shown, and /i is placed on them with the tail of theT extending down between them and into the hole in B. It isthen forced down by the plunger G and takes the finished shapeas shown at //. These ends can be forged about 18 in. long,so as to be easily welded t>i tlie rod. FOR ECCENTRICS. The use of the jig shown in Fig. 7 for drilling holes in ec-centrics greatly facilitates the operation, as it is not necessaryto lay out the holes, and the drilling operation is also madeeasier. The holes for the set screws can easily be drilled ac-curately, and at the proper angle, which prove adifficult job. The jig is made so that it hooks over, the lips onthe large half of the eccentric and fits into the grooves on ELIMINATING ENGINE FAILURES. Fig. 7—Template for Drilling Eccentrics. the small half. The eccentric and the jig are clamped to anangle plate, and after the bolt holes are drilled it is easily setto the proper angle for drilling the set screw holes. The holesin the jig are larger than those to be drilled so that a hardenedsteel bushing or guide can be used. This also allows the samejig to be used for different size holes, the steel bushing beingchanged as desired. DRILLING COMPOUND. A drilling compound made of 5 bars of common soap, 10 sal soda and about SO gals, of water, and placed in barrelslocated at convenient points around the shop, is not only handyfor the workmen, but is so much cheaper than oil that quite asaving is made by its use. By having it placed at differentpoints, especially in large shops where some departments arequite a distance from the tool or supply room, no time is lostin getting a supply. This compound gives good service on thedrill press or for air motor dri
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
