770 



Popular Science Monthly 



Frying Eggs by Means of an 

 Incandescent Bulb 



AN ordinary in- 

 candescent 

 bulb, together with 

 some sand and a tin 

 can, can be used for 

 frying eggs to suit 

 the taste of the 

 most critical. Pro- 

 cure a can large enough so that a space of 

 J^ in. will remain between its sides and 

 the bulb at its widest part. Cut a hole in 

 the bottom of the can to fit an electric 

 socket. Screw in the bulb and fill the 

 can with sand as shown. Place the pan 

 on the top of the can and be sure it fits 

 tightly. Turn on the current ; in a very 

 few minutes sufficient heat will be 

 generated to cook the eggs. If left 

 longer, the sand and glass will become 

 almost red-hot. — Wm. Harrier. 



An Easy Way to Punch Holes in 

 Clock- Spring Steel 



HE diagram rep- 



T". 



strument that will be 

 found handy for 

 punching holes in 

 spring-steel, such as a 

 clock-spring. It con- 

 sists of a link from an 

 automobile chain, one pin of which A is 

 filed flat like the end of a punch. By 

 placing the steel spring over the hole D 

 and entering the pin B in hole C, a sharp 

 blow with a hammer over A will cut a 

 clean hole through the spring. Being of 

 steel, the pins A and B may easily be 

 hardened. — M. F. Vandersdale. 



An Improvised Pipe-Wrench 



APIPE-wrench 

 can be im- 

 provised from a 

 solid wrench A 

 and a coarse, 

 sharp file. The 

 file B is placed in 

 the lower jaw and 

 raised with slugs of metal, if necessary, 

 until the desired grip is obtained on the 

 pipe between the upper jaw and the 

 file surface. This expedient will prove 

 of value in an emergency. 



A 



A Carbon- Copy Postal Card 

 POSTAL 



card, similar 

 to the regular 

 double card used 

 for a return mes- 

 sage, may be used 

 for making a car- 

 bon copy. The 

 carbon is slipped between the two folds 

 of the card in writing; then the copy is 

 torn off along the central perforated 

 line. 



For this purpose a comparatively thin 

 card is required. 



This scheme is especially valuable to 

 clubs and business houses who have to 

 send out hundreds of short communica- 

 tions. — F. P. Mann. 



Improving a Drawing-Ink Bottle 



THE quill, usu- 

 ally attached 

 to the stopper of a 

 drawing-ink bottle, 

 necessitates several 

 dips into the ink 

 before a sufficient 

 quantity is obtain- 

 ed for transferring 

 to an instrument. 

 By slitting the quill on both sides of the 

 point and standing it on the point, with 

 a heavy object bearing down on the 

 stopper, the tip becomes horizontal, 

 forming a small cup, which will retain a 

 large quantity of ink. — C. Nielsen. 



Hints to the Mortor- Cyclist 



THE appearance 

 of old and 

 rusted cylinder 

 heads can be great- 

 ly improved by ap- 

 plying ordinary stove 

 small brush. 



Bent crank-hangers can be straight- 

 ened by putting a piece of one-inch pipe 

 over the end of the hanger and exerting a 

 little pressure. 



A wrench for the bolts in the crank 

 case can be made by grinding or filing a 

 screwdriver bit into the desired shape, 

 as shown in the diagram. The bit is 

 then placed in the brace and used like a 

 socket-wrench. — E. H. Dodge. 



polish with a 



