Page:Popular Science Monthly Volume 92.djvu/958

 942

��Popular Science Monthly

��r.nchor post. Of course the builder can C'.Kercise his own ingenuity in designing the 1 osts and in the method of connecting t ne upper and lower cords, but two half- 1 itches of the vertical cables around both t he upper and lower cords will answer the purpose. Care must be taken to see that

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��the cables are kept free from chafing and all ropes and cables should be well soaked in good hot pitch before the work is finished or decay will ruin the bridge in a short time. — George M. Petersen.

��Starting a Very Small Screw with Adhesive Tape

BEING without the necessary tweezers to handle a very small screw I took a match-stick and put a piece of ad- hesive tape on it as shown, then wrapped it with another piece to hold it to the stick. The screw- head adhered to the tape well enough to permit its being placed in position and given a couple of turns before it was necessary to use a screwdriver. — James M Kane.

��Adhesive tape on match to start screws

��A Scaffold for Holding in Place with a Pole

THIS device I sav/ in use by some country plasterers who were re- plastering the very high end of a farm house. Each one was made of two pieces of 3 by 4-in. stock, about 3 ft. long for the upper part, and 4 ft. for the other side of the angle. To make it, nail the two pieces together to form an angle. Then prepare two pieces of 1-in. white pine

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one end to the outer end of the horizontal arm, and the other end to the bot- tom of the ver- tical part. Also fasten the two pieces at the top of the angle, as shown in the il- lustration. The long pole is used to push the bracket up against the side of the house into position, at any desired height, and according to the length of the pole.' The double braces keep the scaffold from turning side-ways on the pole when placed on the side of the house.

Such a scaffold will hold almost any weight, for the more the weight the tighter it will hold, though the pole should have firm footing, not too soft, but not hard enough to cause slipping. Two of the brackets will do ordinary jobs, but as many brackets may be used as may be necessary, of course. This scaffolding has many features to commend it to work- men. — A. A. Kelly.

���scaffold for work on house exteriors

��Holding Photographic Plates from Tray Bottom

THE developing of plates in a flat tray in a darkroom is often a very bother- some task, because the plates stick to the bottom of the tray when one wishes to remove them for examination and at the end of the development period. An excel- lent plan to avoid this trouble is to stretch a rubber band loosely over and round each end of the tray through the developer and then lay the plates on the sagging rubber bands, which will prevent the plates from sticking and improve the general results.

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