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Novel Electric Heater. 



Connector for Spark Plug. Motor-Driven Swing Saw. 



A New Idea in Electric Heaters 



An electric heater which has features 

 decidedly original is illustrated in one of 

 the drawings on this page. One of the 

 smaller editions of the heater is manu- 

 factured in the form of an inverted in- 

 candescent lamp, and it is particularly 

 adapted to the heating of small rooms, 

 such as nurseries, bathrooms and offices. 

 It can be suspended from the electrolier 

 or socket and quickly removes the chill 

 and dampness of early mornings and 

 evenings. Another heater of the same 

 type is made to resemble an open wood 

 fireplace. Coils are inserted inconspicu- 

 ously between two of the front logs, and 

 the appearance of the glowing coils when 

 they are in use closely resembles that of 

 logs that are really burning. The log 

 is made of a composition of lasting mate- 

 rial. These heaters are constructed on 

 a new principle. Each unit attains a 

 temperature of 2,000 degrees Fahren- 

 heit. In other forms, the maximum 

 temperature reached is never greater 

 than 600 degrees. About one or two 

 minutes are required to attain 2,000 de- 

 grees, at which point the temperature 

 remains constant. 



Novel Spark Plug Connector 

 A spark plug which can be attached in 

 remarkably short order has been put on 

 the market by a well-known manufac- 

 turer of electrical apparatus. Motorists 

 will appreciate the saving in time which 

 is effected by the new clip for testing for 

 burned out porcelains and the other 

 faults common to spark plugs. The clip 



is fastened to the end of the high-tension 

 cable and can be attached to the spark 

 plug by slipping the threaded stud of the 

 plug through the hole of the connector, 

 releasing the spring, and the stud will be 

 gripped tightly by the strong spring pres- 

 sure. This connector has the added ad- 

 vantage that it can be shaken off only 

 with great difficulty. 



Compact Electric Saw 



A saw for packing rooms which is re- 

 markably light and compact has recently 

 been designed by an electrical manufac- 

 turer. It is intended for use in factory 

 shipping rooms for the preparation of 

 crating lumber. A number of original 

 features are claimed. In the first place, 

 the motor and saw are combined into a 

 single unit. They are joined by an ar- 

 rangement of cogs which are contained 

 within the walls of a rigid steel case. A 

 second feature is that no line shafting of 

 any sort is required. The complete equip- 

 ment can be installed wherever it is de- 

 sired in a few seconds, merely by at- 

 taching it to a solid support of some kind 

 with four bolts or lugs. The motor is 

 self -regulating, current being supplied to 

 it through two wires. Aside from the 

 advantage gained in its movability, a 

 considerable saving is effected in the fact 

 that no line shafting with its constant 

 loss is necessary. This means that when 

 the saw stops work, the consumption of 

 current likewise stops. 



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 tell others ; if not, tell us. 



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