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 



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 



board, and nail ;:_-_-_-^-^__ 



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. 



