Page:Popular Science Monthly Volume 91.djvu/656

This page needs to be proofread.


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

�� �