Improvements relating to precision grinding machines


576,298. Grinding. CHURCHILL MACHINE TOOL CO., Ltd., and LONGTHORPE, H. May 8, 1944, No. 8709. [Class 60] A machine for grinding cylindrical and non- cylindrical work comprises a grinding-wheel a and a frame h, pivotally mounted at i, carrying the work b and coaxially therewith a gearwheel c and a cam d. The wheel c and cam d are driven together by a gear-wheel e on a shaft f, which also carries a cam g engaging the cam d, the wheels c, e being kept in mesh by a spring acting on the frame h. Cylindrical work is ground by the use of two circular cams, d, e, and non-cylindrical work by the use of one or both cams of non-circular form.




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