640 



This is placed over the tripod top, locating 

 place G on the screw-plate of the tripod. 

 The corner of the cloth H is fastened at D; 

 then the cover is carried around the frame, 

 folding where necessary. It is then trim- 

 med on the lines /, J and K. The trim- 

 ming should not be done until it is in 

 position on the frame and pinned. After 

 shaping it in this manner the pins will hold 

 it so that the cover may be removed for 

 sewing. When complete it can be dropped 

 oyer the frame and fastened to the base 

 pieces with thumb tacks. 



Popular Science Monthly 



Making a Miter Box for Cutting 

 Trestle Legs 



IN doing some odd jobs one day I found 

 that it was necessary to have a trestle, 

 and as there was none at hand I collected 



r> 



Wail- 



Steam 



A Siphon Made Out of Gas Pipe 

 and Fittings 



A SIPHON is very frequently needed 

 for many purposes about a manu- 

 facturing plant. The illustration shows 

 how a very practical siphon can be con- 

 structed from pipe fittings, and which will 

 work very satisfactorily under 

 I intake almost any circumstances. A 

 A>* i-in. tee is used for the body, 



the vertical openings being 

 respectively in- 

 take and de- 

 livery. In the 

 horizontal open- 

 ing is placed a 

 34 to I -in. re- 

 ducing bushing. 

 A 34 by 4-in. 

 nipple is 

 threaded for 

 about 3 in. of its 

 length and 

 started into the bushing. 



When a few threads have passed the 

 inner side of the reducing bushing, a 34 in. 

 street el is caught on the end of the nipple 

 and is of course turned on as the nipple 

 enters the bush. As a result the nipple 

 will be tight in the street el when the lower 

 or nozzle end of it is at about the center 

 of the tee. The hexagonal upper portion 

 is cut from a 34 to %-'m. reducing bushing, 

 leaving a nut, which is run up on the 4-in. 

 nipple before entering it; but it is after- 

 wards tightened against the 34 to i-in. 

 reducing bush, affording a very practical 

 lock for the nozzle. When the steam is 

 turned into the 34" m - connection, the de- 

 vice will afford a very practical and satis- 

 factory siphon for all common lifting 

 purposes generally arising around the shop 

 or plant. Even if the required fittings had 

 to be purchased they would cost very 

 little.— F. W. Bentley. 



'/4 Street L. 

 Delivery 



A siphon made of 

 pipe and fittings 



A piece of wood with gage sticks set in 

 a vise to cut the miter on trestle legs 



the material for making one. Then to cut 

 the miters for the legs became a problem. 

 I did not care to lay out each leg separately 

 to cut the right miter. After making some 

 calculations an emergency miter box was 

 made as illustrated. It consisted of a 

 piece A, of the same stock used for the 

 legs, and three pieces B, C and D, nailed 

 to the sides in such positions as to make 

 the proper angle for the miter. A nail 

 placed in the piece D, as shown, served 

 as a stop. — James M. Kane. 



Replacing Tongue in a Fancy 

 Brass Hook 



A SET of four fancy brass snap hooks 

 was given to me for repairs and on 

 account of being unable to find a duplicate 

 I replaced the 

 Clock vspri n<j broken hinged 



member with a 

 piece of flat 

 clock-spring as 

 shown. It was 

 soldered in 

 place instead 

 of being riv- 

 eted. The 

 original tight- 

 ening spring was left in place to straighten 

 the clock-spring. A portion of the fiat 

 spring was cut off to allow more freedom in 

 opening. — James M. Kane. 



A flat clock spring re- 

 placing a snap tongue 



