. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. 290 MILL AND FACTORV APPLLVNCES AND TOOLS, 753. EXPANDING DRILL. For en-larging the bottom of drill holes for flushtapping or for Lewis jaws or anchors. Thepivoted cutter allows of the cutting of a largercavity than with the eccentric pointed plaindrill. 754. Po
. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. 290 MILL AND FACTORV APPLLVNCES AND TOOLS, 753. EXPANDING DRILL. For en-larging the bottom of drill holes for flushtapping or for Lewis jaws or anchors. Thepivoted cutter allows of the cutting of a largercavity than with the eccentric pointed plaindrill. 754. Position of tool when under-cutting. 755. Front view of cutter. 756. TAPER ATTACHMENT TO A LATHE. On the tailstocka place is planed off to serve as a bearing for the guide bar, A, which is pivoted on the stud, B, andis clamped by the bolt on this guide baris the sKde, D, provided witha gib, K, to make adjustmentfor wear. On the under sideof the slide is a swivel nutwhich is fastened to D bythe bolt E. Through thisnut passes the adjustingscrew, G, which serves toconnect the guide bar with the cross slide J. The feed block, F, ismade to fit into the T-slot in the tool block, being held by a singlebolt, L, so that it is the work of but a few moments to remove theattachment when it is not desired to use it. When the attachment is being used the cross-feed screw is r
Size: 1710px × 1461px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorhiscoxgardnerdexter18, bookcentury1900, bookdecade1910
