. 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. 759swung . BORING ELLIPTIC CYLINDERS. B D is a boring baron centers on a lathe. A C is an arm holding at its end C a boringtool. When the bar is rotated the point C describesa circle. A casting, M, which is to be bored elliptic-ally, is secured rigidly to a carriage c
. 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. 759swung . BORING ELLIPTIC CYLINDERS. B D is a boring baron centers on a lathe. A C is an arm holding at its end C a boringtool. When the bar is rotated the point C describesa circle. A casting, M, which is to be bored elliptic-ally, is secured rigidly to a carriage capable of beingmoved in the direction of E F, which is the longi-tudinal axis of M and passes through A. Conse-quently, if the boring bar is rotated on its centersand the work fed gradually, in the ordinary way,along axis E F, the cutting tool, at each revolution,describes a circle; but, because of the inchnationof axis E F, when the tool occupies the positionshown in dotted lines, the boring will be achievedand the end view of the casting will show a perfectelliptical
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Keywords: ., bookauthorhiscoxgardnerdexter18, bookcentury1900, bookdecade1910
