Handy man's workshop and laboratory . slotted crank disk C is attachedto shaft D. A T-slot is cut half way across the face of the disk Cto receive an adjustable crank-pin, which gives the slide B thestroke required for the keyways. Bracket E is attached to theside of the die sinker to receive a short shaft, one end of whichcarries pulley F, while the other end is connected by a universalcoupling to the shaft D. Belt G passes over the driving shaft ofthe die sinker and around the pulley F, which drives the work toand fro while the keyway is being cut. The machine spindle isrun at the required s
Handy man's workshop and laboratory . slotted crank disk C is attachedto shaft D. A T-slot is cut half way across the face of the disk Cto receive an adjustable crank-pin, which gives the slide B thestroke required for the keyways. Bracket E is attached to theside of the die sinker to receive a short shaft, one end of whichcarries pulley F, while the other end is connected by a universalcoupling to the shaft D. Belt G passes over the driving shaft ofthe die sinker and around the pulley F, which drives the work toand fro while the keyway is being cut. The machine spindle isrun at the required speed, and while the work is moving backand forth under the cutter it is fed up into the cutter by means ofthe elevating screw of the die sinker. This device is simple andpractical in its construction, and is now used with perfect satis-faction in the shop where the writer works.—17 SCREW-SLOTTING ATTACHMENT FOR LATHES The accompanying drawing suggests a method of convertingan old lathe or speed lathe into a screw-slotting Fig. 148—Screw-slotting attachment for lathes HANDY MAN S WORKSHOP AND LABORATORY 167 The angle plate A is secured to the bed of the lathe. In thevertical face of angle plate A is a dovetail groove, in which angleplate B fits, so as to afford an up-and-down motion. On the topface of angle plate B is a dovetail groove, in which slide plate Coperates. Lever D pivots on swivel E, giving movement to slideplate C. Place the screw to be slotted into draw chuck F, andtighten on draw wheel G. With the fixture so placed on the lathebed as to cut the screw centrally, the depth of the slot may beregulated by adjusting screw /. By moving the lever D, thescrew is fed into the saw H. There is an elongated slot / in theangle plate B to allow the draw clutch to pass through and moveback and forth. In angle plate A is a stud K to hold in positionthe adjusting screw /. By a little practice the screws may be slotted very rapidly. MICROMETER ATTACHMENT FOR THE MILLI
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Keywords: ., book, bookcentury1900, bookdecade1910, booksubjectworkshoprecipes
