Book 3 — Handy Tool for Tightening Wire Spokes in Wheels
Reading edition
The wire spokes in bicycle and similar wheels often become loose, and a small pocket device for tightening them on the road is handy. A satisfactory one can be made quickly from a washer, 2 in. in diameter, cut as shown. A tapering slot is cut to the center of the washer to engage the nipples of various-sized spokes. The outer circumference of the washer is filed with a triangular file to provide a good finger grip.—H. E. Randell, Boston, Mass.