. 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. leted by cutting away the opposite sides. For excavating the mortises, the doubly incHned block, B, is removed,and another gate substituted for the gate, D, in which substitute gatethe chisels are so secured as to have their lower ends in a horizontal stuff b
. 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. leted by cutting away the opposite sides. For excavating the mortises, the doubly incHned block, B, is removed,and another gate substituted for the gate, D, in which substitute gatethe chisels are so secured as to have their lower ends in a horizontal stuff being placed on the horizontal bed and the chisels depressed,the surplus timber is excavated at a single stroke. 804. FILE-CUTTING MACHINE. The sliding head to whichthe shank of the blank is clamped is actuated by a feed screw and half nut, the latter being automaticallyraised to stop the feed motion atthe proper time. The anvil hasa hemispherical block, whoseconvex side rests in a socket of itssupport. The anvil and feedmovement are supported on aturntable, by whose adjustmentthe incHnation of the teeth isdetermined. The chisel is sup-ported upon a flexible rod, which is connected to the hammer handleby a spiral spring. The hammer is attached to a rock shaft, whichhas an adjustable arm acted on by a cam on the main
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Keywords: ., bookauthorhiscoxgardnerdexter18, bookcentury1900, bookdecade1910
