Playtner, H. R. [from old catalog] · Chicago, Hazlitt & Walker · leaf 43
principle foolishly applied—resulting in an ac-tion entirely unsatisfactory. When the guard point is pressed against the roller theescape tooth must still rest on the locking face of the pal-let; if the total lock is 2°, by allowing i%° freedom forthe guard point between the bank and the roller the…
Clocks and watches
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