Amateur mechanics ... a book for old and young who like to make things .. (1907)
Popular mechanics magazine, Chicago. [from old catalog] · Chicago, Popular mechanics · leaf 83
its prototype. The Turning Card Puzzle To produce a rotary motion fromciprocating motion take a lead pen-cil or otherS moot h stickand cut notches aboul ,:i; or .[ in. apart andabout ,,, in.deep. Punch ahole exactlythrough thenj id 1 e of ac a r d, enlargethe hole a littleand put a common pin… … How to Make Four Pictures on OnePlate Secure two extra slides for the plateholders and cut one corner out on oneof them, as shown in Fig. 1. Make ahole in the other, as shown in Fig. 2.With a lead pencil draw on the; groundglass, one line vertical and one hor-
Handicraft · Amusements
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
