Popular Science MontJihi 



213 



Mount a snow plow in front of a locomotive and simply melt away all the snow drifts 

 you encounter. An inventor has provided the extra apparatus that is necessary 



Just Melt a Snow Bank Away. 

 But It's Not a Simple Process 



JrST now when railway men all over the 

 country are struggling with overpow- 

 ering snow storms, we know they will 

 be interested in a Middle- Westerner's in- 

 vention whereby all their troubles may 

 literally be melted away. His idea is to 

 mount a snow plow in front of the loco- 

 motive^a snow plow provided with in- 

 numerable steam jets by which all snow 

 encountered may be rapidly reduced to 

 water. It is easy to do this, merely a 

 matter of having coal enough in the 

 tender. 



The inventer provides pipes by which 

 the water accumulated, may be delivered 

 at will, to the tender, or distributed freely 

 along the right of way to freeze and hold 

 down drifts. 

 Perhaps the 

 blowing ac- 

 tion of the 

 steam jets 

 may assist a 

 plow in loos- 

 ening up its 

 obstacles. 

 But when the 

 disposal of 

 snow by 

 melting ac- 

 tion alone, 

 and with 

 steam as the 

 source of 



neat, is con- ^ pleasure automobile made 



Sldered, the wounded men can easily be 



question of practicability arises. 



It takes eighty calories of heat to re- 

 duce one gram — a small teaspoonful — of 

 ice at 32° F. to water at identically the 

 same temperature (32° F.), or as much 

 heat as it afterwards takes to raise the 

 teaspoonful of (now) water from 32° F. to 

 about 175° F. In other words, ice takes 

 an immense amount of heat just to melt 

 it. Of course, snow isn't literally ice, but 

 as an almost limitless absorber of heat it 

 id a close rival. 



Good strong rotary plows sre proving 

 very useful as disposers of sno v. 



Your Automobile Can Be Made 

 Into an Ambulance 



NY five-passenger car can be made 

 into an ambulance that will carry 

 two men, by 

 attaching a 

 gas-pipe 

 framework, 

 invented by 

 Captain 

 G a n s , of 

 Philadelphia, 

 Pa., an officer 

 in the Med- 

 ical Corps. 



The stretch- 

 ers are slung 

 from the 

 racks. The 

 light variety 

 weigh not 

 into an ambulance. Two "^ore than 



carried on the stretchers fifty pounds. 



K 



