DRIVEN MACHINES 129 



By investigating the different systems of gasoline gas 

 lighting in use in village stores and country homes any 

 farmer can select the system that fits into his home con- 

 ditions to the best advantage. In one farmhouse the 

 owner wanted gasoline gas street lamps on top of his 

 big concrete gateposts, and this was one reason why he 

 decided to adopt gasoline gas lighting and to use the 

 separate lamp system. 



ACETYLENE GAS 



Acetylene lighting plants are intended for country 

 use beyond the reach of city gas mains or electric 

 cables. Carbide comes in lump form in steel drums. It 

 is converted into gas by a generator that is fitted with 

 clock work to drop one or more lumps into water as gas 

 is needed to keep up the pressure. Acetylene gas is 

 said to be the purest of all illuminating gases. Experi- 

 ments in growing delicate plants in greenhouses lighted 

 with acetylene seem to prove this claim to be correct. 



The light also is bright, clear and powerful. The 

 gas is explosive when mixed with air and confined, so 

 that precautions are necessary in regard to using lan- 

 terns or matches near the generators. The expense of 

 installing an acetylene plant in a farm home has pre- 

 vented its general use. 



WOOD-SAW FRAMES 



There are a number of makes of saw frames for use 

 on farms, some of which are very simple, while others 

 are quite elaborate. Provision usually is made for 

 dropping the end of the stick as it is cut. Sometimes 

 carriers are provided to elevate the blocks onto a pile. 

 Extension frames to hold both ends of the stick give 

 more or less trouble, because when the stick to be sawed 



