. American engineer and railroad journal . JOURNAL. 211 CHAIN SAW MORTISER. APPROVED FUSIBLE PLUGS. The chain saw mortising machine shown herewith, which ismade by the New Britain Machine Company, New Britain,Conn., is a distinct advance in the field of woodworking ma-chinery. As shown in detail view of the chain mechanism,mortising is done by a sprocket chain, each link of which car-ries a sharpened cutting tooth so formed as to carry out itsown chip. This chain is driven by a sprocket wheel arrangedin the head of the machine and in the cutting portion of itstravel slides down around the groo
. American engineer and railroad journal . JOURNAL. 211 CHAIN SAW MORTISER. APPROVED FUSIBLE PLUGS. The chain saw mortising machine shown herewith, which ismade by the New Britain Machine Company, New Britain,Conn., is a distinct advance in the field of woodworking ma-chinery. As shown in detail view of the chain mechanism,mortising is done by a sprocket chain, each link of which car-ries a sharpened cutting tooth so formed as to carry out itsown chip. This chain is driven by a sprocket wheel arrangedin the head of the machine and in the cutting portion of itstravel slides down around the grooved guide bar, having theroller bearing guide wheel at the bottom. Chips are carriedaway by a rotary fan on the sprocket shaft on the head. This arrangement permits a very gradual, even cutting ac-tion, as with the ordinary chain speed of 1,500 ft. per minute,40,000 cutting teeth are presented to the work in that time;likewise for the same reason very rapid work may be done, ashigh as 120 door stiles mortised per hour being possible with.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
