This section is from the book "The Boy Mechanic Vol. 2 1000 Things for Boys to Do", by Popular Mechanics Co.. Also available from Amazon: The Boy Mechanic, Vol2: 1000 Things for Boys to Do.
The machine shown in the illustration is very simple to make and when complete is one of the greatest time savers that a photographer can possess. The base is made of a piece of board, 9 in. long, 2 in. wide, and 7/8 in. thick. The uprights support a small bar upon which the roll of binding revolves. An old ink bottle filled with water and with some cotton stuffed in the neck serves as a moistener for the binding. The use of this machine insures a neat job in a very short space of time. The slide is always in the center of the binding. The end of the slide should run a little over the end of the base so that the binding may be fixed to the edge with the fingers, using a downward motion. The slide is then turned over on the other edge with a rolling motion and the operation repeated. - Contributed by Alvin G. Steier, Union Hill, N. Y.
Ill: A Machine That will Help to Bind Lantern Slides Quickly and Neatly