Popular Science Monthly 



301 



Making an Ejector of Pipe 

 and Fittings 

 AN ejector is a difficult device to make 

 £\ and get the right proportions for de- 

 livering water at different temperatures. 

 One made with dimensions given will lift 



LOCKNUT 



ll:l'K,!l!ii:l "~7i 



TEE 



STEAH 

 BUSHING 



Pipe connections to form an ejector 

 for water of different temperatures 



hot water. The suction and delivery 

 pipes are 2 in., turned into a tee as shown, 

 the other opening being fitted with a 

 reducing bushing to admit a ^4 or i-in. 

 pipe for steam. This pipe should be 

 drawn to make a hole at the inner end 

 not over 3^ in. in diameter. The end of 

 this pipe should have a long thread cut on 

 it for adjustment and a lock nut fitted to 

 hold it in place when set. 



A Sharpening Block for Putting Keen 

 Edges on Tools 



CHISELS and plane-irons generally 

 have a wire edge after being sharp- 

 ened on a stone. This is best removed 

 by rubbing on leather. Glue an old 

 piece of leather belt on a small block and 

 it will answer the purpose admirably. 



How to Drill Holes in Glass with 

 a File Point 



HOLES may be drilled in glass in the 

 following manner. Take a pointed, 

 three cornered file and dip it in pure tur- 

 pentine. Put the point of the file at the 

 place where the hole is to be drilled and 

 twist the file first in one direction and 

 then in the opposite direction, bearing 

 lightly upon the file. Slightly turn the 

 handle of the file around in the hand and 

 twist it some more. When no glass is 

 cut add more turpentine. After the hole 

 is drilled through it can be smoothed 

 with emery cloth. 



Holes may also be put in' very thin 

 glass. Take a rod the diameter of which 

 is the same as the diameter of the hole to 

 be made, and place the end at the point 



where the hole is wanted. Pack wet clay 

 around the rod, and then withdraw it. 

 Pour melted solder into the hole left by 

 the rod. As soon as the solder is poured 

 in, dip it into cold water and knock out 

 the piece of glass. — Lester Reinicke. 



A Tool Post Chip Guard for 

 a Lathe 



IN CUTTING some kinds of metal the 

 chips will fly from the tool edge and 

 are apt to strike 

 the eye or burn 

 the flesh. The il- 

 lustration shows a 

 guard that is easi- 

 ly fitted in the 

 tool post of a 

 lathe, where it will 

 guard the face. It 

 consists of a 

 square of metal 

 with a projecting 

 tang the si2e of 



the tool-post slot, the square opening 

 being covered with a piece of celluloid. 



The face guard b lo- 

 cated in the tool post 



Small Auxiliary Oven for a 

 Gas Range 



WHERE cooking requirements are 

 small the cost of heating a large 

 oven on a gas range of the type shown 

 may seem excessive, whereas a small 

 portable oven set over one of the burners 

 uses little gas. To overcome the incon- 

 venience of storing it when not in use and 

 of lifting it frequently, a metal shelf 

 raised on flat iron brackets at a sufficient 



TONGUtS TURNU) 

 TO riT OBCUl>« 

 HOLE IN OOTTOn 

 OF OVtN 



Extra burner 

 attachment for 

 a gas range 



height so as not 

 to interfere 

 with the free 

 use of all the 

 burners, may 



be erected over the stove. An additional 

 burner should be fitted into the bottom of 

 the oven and connected to the gas supply. 

 The shelf extending out on the side of 

 the oven forms a convenient warming 

 place for plates. — A. B. Kexnedy. 



