. American engineer . Parts of Coach Trucl< Transom End Assembled for Welding. This machine shapes the plates properly, the pyrometer beingused to get the correct temper, and all the plates being exactduplicates. It also shows a saving of not less than 30 per the cost of production. I may be somewhat premature insaying that elliptical springs wdll sooner or later be made bymachinery, and without the use of a hammer, but in a numberof shops this method is now- in every-day operation and has re-sulted in a decided saving and a better spring. An objectionmay be raised to the machine me
. American engineer . Parts of Coach Trucl< Transom End Assembled for Welding. This machine shapes the plates properly, the pyrometer beingused to get the correct temper, and all the plates being exactduplicates. It also shows a saving of not less than 30 per the cost of production. I may be somewhat premature insaying that elliptical springs wdll sooner or later be made bymachinery, and without the use of a hammer, but in a numberof shops this method is now- in every-day operation and has re-sulted in a decided saving and a better spring. An objectionmay be raised to the machine method on account of the largenumber of designs of springs generally made or repaired in rail-road shops. To induce the designing engineer to change designswill take time. However, if it can be shown that a superior. Die and Plunger for Welding Tnnsom Ends. spring can be made at lower cost, the question of providing theproper machinery will at least receive careful attention, and wemay also hope to see a number of springs, dilTering only slightly,eliminated. A number of methods of manufacturing elliptical springs byniachinerv are now employed. All that I am familiar with do September. 1913. RAILWAY AGK GAZETTE, MECHANICAL EDITION. 489 this work in a hxdraulic press or a bulUlozor. Two methods ofbending the leaves have been called lo my attention. By one ofthese a number of lingers set close together like piano keys areemployed; these are set to the desired radius by cams or by bolt-ing each finger separately When these are set the working sur-face looks like a piano keyboard bent to the shape of a forming the spring plate it is pressed between two ofthese keyboards, or one keyboard and a second set of weightedfingers, where each finger has a separate weight. The hot leaf
Size: 1856px × 1347px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
