Dingey, Peter Spear. [from old catalog] · New York, J. Wiley & sons · leaf 172
n the surface of joint, but this does not givesuch a satisfactory job as making the two parts of thewheels a little over the centre line, as already stated. Gear wheels which are to be in halves should never,in my opinion, be bolted together with a break joint,though this is often done, and, in… … Fig.193
Patternmaking
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