104 



Electric Heater Resembles 

 Desk Telephone 



AMONG the new electric heatin^^ de- 

 vices being brought out is one 

 which looks like a desk telephone. It 

 consists of a round, transmitter-like de- 

 vice, about six inches in diameter, con- 

 taining the usual electric coils, and with 

 a cage in front. This is mounted on the 

 side near the top of a standard such as 

 is used for the electric fan. 



The heater is supplied with eight feet 

 of cord so that it may be moved around 

 and placed either on the floor or on 

 a table. It is made in two styles ; one 

 having two heating units, and the other 

 ha^■ing but one. The latter, of course, 

 is less expensive to buy and uses less 

 current. The double unit one, however, 

 gives off sufficient heat to warm a room 

 of considerable size. This heater can 

 be used not only to heat a room but 

 can be placcfl in such a position that it 

 will warm the feet onl\\ 



Adapting Tire Inflation to the Load 



CALIPERS have been devised for 

 measuring air pressure in automobile 

 tires in relation to the load carried. A 

 touring party before starting on a trip 

 may use the new tool to establish correct 



Popular Science Monthly 



This new tool, with 

 i t s corresponding 

 tables, practically 

 eliminates the dan- 

 ger of blowouts due 

 to over-inflation 

 with a heavy load. 

 The driver with his 

 scale can quickly 

 find how wide his 

 tires should be to 

 ride properly, and 

 with this scale can 

 find how much be- 

 low or above the 

 proper pressure 

 they are 



A desk heater which radiates its comfort 



to the spot where it is wanted, and is still 



an attractive bit of furniture 



pressure in the tires for the load of peo- 

 ple and trunks, and by 

 keeping this pressure 

 constant tires may be 

 greatly economized. The 

 device is simple, small 

 and compact, and may 

 be used in a few sec- 

 onds. The tool has a size 

 scale and a load scale. 

 The size of the tire at 

 the top is measured on 

 the size scale, and the 

 slide moved along to the 

 same size on the load 

 scale. The tool is then 

 placed over the bottom 

 of the wheel, and if it 

 fits easily over the tire 

 the pressure is correct. 

 If it does not fit, the tire 

 is inflated or deflated to 

 the correct point. 



Blowouts can usually 

 be traced to faulty in- 

 flation, so this tool can 

 be expected to pay for 

 itself. 



