. 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. h plate or linkis shaped on one side to form a pair ofsaw teeth, one tooth cutting in onedirection and one in the other. Theplates are a little thicker on the cuttingedge than at the back, so that the saw,as it is sharpened, is always set so as toclear its cut. A cros
. 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. h plate or linkis shaped on one side to form a pair ofsaw teeth, one tooth cutting in onedirection and one in the other. Theplates are a little thicker on the cuttingedge than at the back, so that the saw,as it is sharpened, is always set so as toclear its cut. A cross handle at each end of the saw fits into a ringfor use. The handles are withdrawn from their rings to render thesaw portable. 870. STUMP-PULLING MACHINE. The pulling mechanism issupported by a tripod, to the upper end of which is secured a chain carrying a bar or plate pro-vided with a bearing in whichslides a notched bar. Mesh-ing with the notches of thisbar are the teeth of a pawl,which is so connected bylevers with the operatinghandle that the downwardmovement of the latter willraise the pawl and notchedbar and the chain attachedto its lower end. A slidingbolt then holds the notchedbar in its raised position, when the handle can be raised to enablethe pawl to engage with the next lower teeth of the bar. Thus, by a 339. 540 MISCELLANEOUS DEVICES. succession of up-and-down movements of the handle, the notched barmay be elevated its entire length, or until the stump is pulled com-pletely out. 871. MOTOR ROLLER-DISK PLOW. The gang of roller disks are separately at-tached to arms pivoted toa frame, which is attachedto an extension of the rearend of the traction windlass driven by themotor lifts the disk plowsout of the ground whennot in use.
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Keywords: ., bookauthorhiscoxgardnerdexter18, bookcentury1900, bookdecade1910
