. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . , and is connected atthe top by hydraulic pii)e, to give strengthand lightness. There are adjustalile trunnion-boxes to change the size of the spoke. Therearing is cut from the sol id,and the center gear has double width of face, to permit theoperator to change the shape of the spoke. The back center gearing is so constructed thatvarious lengths of spoke may be turned from one pattern. An improvement recently added
. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . , and is connected atthe top by hydraulic pii)e, to give strengthand lightness. There are adjustalile trunnion-boxes to change the size of the spoke. Therearing is cut from the sol id,and the center gear has double width of face, to permit theoperator to change the shape of the spoke. The back center gearing is so constructed thatvarious lengths of spoke may be turned from one pattern. An improvement recently added is for automatically lifting into the cut the frame carrv-in-nhe sr)oke, so that all theoperator has to do is to remove the finished spoke and put m thesti7k for a new one—not even leaving his position, but merely pulling a lever, whicli sets theyibratinre convenientthan lifting thrfraine into The cut every time a si)oke is turned. ()ne of tiiese latlies has arecord made in a snoke-factory in Mississippi, of ^.CJ).) spokes per day of It) iiours, w iich is. Fig. 2.—Spoke-lathe. the bed. completing the spoke, the vibrating frame throws forward, and theca return to the starting-point to cut another sj)()ke. This is. of course, much i than lifting the frame into the cut every time a si)oke is turned. One of tii record made in a spoke-factory in Mississippi, of ) spokes per day of It) , • , claimed to be the greatest record ever made on a spoke-lathe. Tlie average capacity claimed for the new lathe is 2,200 to 2,400 per day—more than double the ordinary capacity of such machines The automatic spoke and handle latlie, shown in Fig.:?. is for turning and squaring wagonand carriage spokes, althoiiijh it has adjustments for turning common. Narvm. or sliarp-edgcdsiiapes, making either light hickory spokes or heavy ones for wa-on. truck. in. diameter There is a rotating cylinder composed ofrotatin^r knife cutter-heads placed side bv side to make up the length of
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Keywords: ., bookcentury1800, bookdecade189, booksubjectmechanicalengineering
