The Boy Mechanic: Volume 1 eBook

This eBook from the Gutenberg Project consists of approximately 823 pages of information about The Boy Mechanic.

The Boy Mechanic: Volume 1 eBook

This eBook from the Gutenberg Project consists of approximately 823 pages of information about The Boy Mechanic.

** Stretcher for Drying Photograph Prints [275]

A quick and convenient way to dry prints is to place them on a cheesecloth stretcher.  Such a stretcher can be made on a light wood frame, constructed of 3/4-in. square material in any size, but 12 by 24 in. is large enough.  The end pieces B are fastened on top of the long side pieces A, and the cheesecloth C stretched and tacked over them, as shown.

The prints should be placed face up on the cloth, and the frame set near a window.  If the stretcher is made in

[Illustration:  Cloth on the Frame]

this way, the air can enter from both top and bottom, and the prints will dry rapidly.  Several of these frames can be stacked and a large number of prints thus dried at the same time.  —­Contributed by Andrew G. Thorne, Louisville, Ky.

** A Temporary Funnel [275]

The amateur photographer often has some solution which he desires to put into a bottle which his glass funnel will not fit, says the Photographic Times.  The funnel made by rolling up a piece of paper usually allows half of the solution to run down the outside of the bottle, thereby causing the amateur to be dubbed a “musser,” A better way is to take an ordinary envelope and cut it off as shown by the dotted lines.  Then clip a little off the

[Illustration:  Paper Funnel]

point, open out, and you have a funnel that will not give any trouble.  It is cheap and you can afford to throw it away when dirty, thereby saving time and washing.

** An Electric Engine [276]

The parts of this engine are supported on a base 3/4 in. thick, 4 in. wide and 7 in. long.  The upright B, Fig. 1,

[Illustration:  Shaft Turned by Magnetism]

which is 1/2 in. thick and 3 in. high, is secured across the base about one-third of the distance from one end and fastened with a wood screw put through from the under side.  The magnet core C is made of a carriage bolt, 2-1/2 in. long, which is fastened in a hole in the top part of the upright B so that the end C will protrude slightly.  Before placing the bolt in the hole of the upright, slip on two cardboard washers, each 1 in. in diameter, one at the head end and the other against the upright B. Wrap a thin piece of paper around the bolt between the washers and wind the space full of No. 22 gauge magnet wire, allowing each end to project for connections.

The driving arm D, Figs. 1 and 3, is made of a piece of soft sheet iron, 1/2 in. wide and 3 in. long.  A small block is fastened to the lower end of the metal and pivoted between two uprights, 1/2 in. high, which are fastened to the base.  The uprights on each side of the block are better shown in Fig. 3.

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The Boy Mechanic: Volume 1 from Project Gutenberg. Public domain.