Playtner, H. R. [from old catalog] · Chicago, Hazlitt & Walker · leaf 22
would be too dearly bought; or if the angle ismade over 280, the point or locking edge of the tooth wouldrapidly become worn in case of a brass wheel. Also in anEnglish lever more drop would be required. The Lock.—What we have said in regard to drop alsoapplies to the lock, which should be as small… … Fig. 6. The Run.—The run or, as it is sometimes called, theslide/ should also be as light as possible; from %° to ^°is sufficient. It follows then, the bankings should be as closetogether as possible, consistent with requisite freedom forescaping. Anything more than this increases the…
Clocks and watches
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
