Playtner, H. R. [from old catalog] · Chicago, Hazlitt & Walker · leaf 51
and E B withthe primitive circle G H; this distance must be equal to theradius of the circle. At these points we will construct rightangles to E B and F B, thus forming the tangents C A andD A to the primitive circle G H. These tangents meet.onthe line of centers at A, which will be the pallet… … #U^ THIS IS GOVERNMENT PROPERTY FOR OFFICIAL USE OMITACCOUNTED FOR IN ACCOMANCE ¥NI« M. Mil. THE LEVER ESCAPEMENT. 45 stand on this circle no matter in what relation the palletsstand to the wheel. Place the center of the protractor atB and draw the angle of width of pallets of 6°; I B E beingfor…
Clocks and watches
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