. Canadian machinery and metalworking (January-June 1919). fix-ture and method could be used for mach-ining other circular shapes than the oneit was designed and used for. In Fig. 7 is shown the jig used whenmachining the ductor cam lever. The casting is located in the tool bybeing pushed back into the vee at A. Owing to the peculiar shape of tinspiece the plate B must be swung out ofline to permit the insertion of the cast-ing in the jig. The other end of the casting is locatedagainst an adjustable screw at C, beingforced against it with the thumbscrewD. The following holes are then mach-ined
. Canadian machinery and metalworking (January-June 1919). fix-ture and method could be used for mach-ining other circular shapes than the oneit was designed and used for. In Fig. 7 is shown the jig used whenmachining the ductor cam lever. The casting is located in the tool bybeing pushed back into the vee at A. Owing to the peculiar shape of tinspiece the plate B must be swung out ofline to permit the insertion of the cast-ing in the jig. The other end of the casting is locatedagainst an adjustable screw at C, beingforced against it with the thumbscrewD. The following holes are then mach-ined: one % in. drilled, one % in. drilled,and one % in. drilled. Machining the Feed Guide Stands The jig shown in Fig. 8 is used whenmachining the feed guide stands, one onthe feeder and the other on the gear this purpose the tool is made of adouble angle section, one face of thecentre web being used as a locating sur-face for one hand and the other face forth; opposite hand. The base of the casting and face ofthe various bosses have beer, machined. #•#•*#©««««* © JMMM
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmachinery, bookyear19
