. American engineer . Fig. 4—Chuck for Driving Box Brasses. slots, one 3 in. and the other 10 in. long and 1 in. wide, arccut into the middle of the shoe at the ends for the T-rlamps,one of which is shown at the left of the shoe. The clampfits in the T-slots of the table and the set screw bears downon the brass, holding it rigidly in place. With this arrange-ment cuts 1 in. deep can be readily taken. The chuck is easilymade and produces excellent results. DRIVING BOX CHfCK. The chuck shown in Figs. 5 and 6 is used for boring The base A is made of cast iron and has a projectimi.
. American engineer . Fig. 4—Chuck for Driving Box Brasses. slots, one 3 in. and the other 10 in. long and 1 in. wide, arccut into the middle of the shoe at the ends for the T-rlamps,one of which is shown at the left of the shoe. The clampfits in the T-slots of the table and the set screw bears downon the brass, holding it rigidly in place. With this arrange-ment cuts 1 in. deep can be readily taken. The chuck is easilymade and produces excellent results. DRIVING BOX CHfCK. The chuck shown in Figs. 5 and 6 is used for boring The base A is made of cast iron and has a projectimi. Fig. 5—Driving Box Chuck for Boring Brasses, Etc. on the bottom to fit in the hole in the center of the boring milltable. The outer ends of the chuck extend to the edge of thetable and it is fastened to the machine by four 1 in. bolts solocated as to have them enter the slots in table. The holesfor these bolts are counterbored at the top of the chuck sothat the nuts will clear. The jaws B slide in the ways of thebase and are actuated hy a right and left hand screw which is held in the center of the chuck body by a large split plateC which is set in a slight recess and is held by fillister headscrews. Provision for taking up wear and keeping the jawsa snug working fit in the base is made by two taper gibs, onefor lateral and one for vertical lost motion. The jaws alonewere not sufficient to hold the boxes firm while they were beingbored with coarse feeds, so the clamping levers D were pro-vided. These levers pass through the jaws and rest on thedriving flange. Kach one is held b
Size: 1713px × 1458px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
