Popular Science Monthly 



A motorcycle on runners is a novelty, 

 but its practicability has been proven 



A Sleigh Motorcycle. 



ALTHOUGH it is possible with 

 little snow on the ground to run 

 a motorcycle with its rubber tires, it 

 has been found impossible to Ao so 

 when the fall measures several inches, 

 and a resident of Gait, Ont., has solved 

 the problem thus presented. 



The rubber tires were taken off the 

 front wheel of the machine, and off 

 the wheel on the side car, and 

 runners were fitted on, and 

 bolted to the rims of the 

 wheels. The rul)ljer tire re- 

 mains on the rear wheel of 

 the machine for driving pur- 

 jtoses, but the runner on the 

 front wheel makes the rut, 

 thus permitting the use of the 

 one tire. 



Keeping the Motorcycle Busy 



BV applying a belt and pulley device 

 to his motorcycle, a mechanic who 

 runs a grinding establishment has been 

 able to double his output in the last sea- 

 son, the motorcycle supplying the power 



75 



to grind lawn mowers, and the like. Fans 

 driven by the same power keep the en- 

 gine cool, so that it can run many hours 

 without overheating. 



The device was constructed by W. M. 

 Conover in his shop in Gettysburg, Pa., 

 and is a complete success. Of course 

 the motorcycle is of value to him in se- 

 curing business, and the belt and pulley 

 attachment can be removed with no 

 trouble in a few minutes' time. 



Indicator Tells Pursuing Police 

 Speed of Automobile 



AW-ABIDIXG motorists who have 

 had the disagreeable experience of 

 being arrested when they were well 

 within the limit of the law will doubt- 

 less greet, with delight, the new inven- 



E 



The mechanic owner of this motorcycle keeps it at work 

 in his shop turning a lathe 



Here is a chance for 



the honest motorist to 



tell everybody how fast 



he is running 



tion of a Pennsylvania inventor. By 

 means of a speed indicator, similar to the 

 indicators which are found on the instru- 

 ment boards of nearly every car, the in- 

 ventor has made a combination license 

 tag holder and speed indicator which 

 ; hows clearly to the public 

 the number of the car, as 

 \vcll as the exact speed at 

 w hich the car is traveling. 



A semicircular plate, with 

 the numbers in multiples of 

 five up to thirty miles an 

 hour, is equipped with a 

 pointer, which indicates ac- 

 curately the speed of the 

 car. Both the license tag 

 and the indicator plate are 

 perforated, and are illumin- 

 ated at night by means of a 

 light placed behind them. 



