The Strips of Leather Sliding through the Stitches Make the Puzzle Part of the Purse
To open the purse, take hold of each side on the purse part and draw the pieces apart. In doing so, the strips are drawn through the stitches so that they may be separated and a coin taken from the purse. A pull on each end will close the purse.—Contributed by Chas. Motton, Toronto, Ont.
An Emergency Sandpapering Machine
While doing some work I had several small pieces to be finished with sandpaper. They were so small and of such a shape that it was impossible to do the work by hand. Not having a sanding machine, I used a disk talking machine for the purpose. I placed a sheet of sandpaper over the disk and fastened it to the felt at the corners with pins. The machine was then set going at its highest rate of speed, and the articles were smoothed by holding them on the disk.—Contributed by Fred S. Barnard, Los Angeles, Cal.
A Developing Machine
The base of the developing machine consists of a wood tray with sloping ends and high sides, which is placed at the center and provides bearings for the wheel axle. The dimensions given in the sketch are for making a machine to develop a film about 29 in. long. The disk, or wheel, is cut from a board, 7/8 in. thick, and the attached crosspieces are cut from 1/4 in. dowels to make them 2-1/2 in. long. These are placed about 1 in. apart on the circumference of the disk.
An axle, fastened solidly in the wheel and adjusted in the bearings, is kept from slipping sideways by bushings made of a spool. A crank is attached to one end of the axle. Hot paraffin is applied to the inside of the tank part, to make it liquid-tight. Two pins or hooks are attached to one of the crosspieces to catch into the film end. If the wheel is the correct size, the same pins can be used for fastening the other end of the film.
The Entire Length of Film is Placed on the Wheel Where It is Run through the Developer
The film is first attached to the wheel; then, while turning slowly, the developer is poured into the tray. Keep on turning the wheel until full development is obtained, then pour out the liquid and turn in fresh, clear water, and turn the wheel to wash out the developer. Remove the film and place it in the hypo bath.—Contributed by Raymond M. Bealer, Baltimore, Md.