ROI MBLE ENGINEER 1 1 5 



ing thro By blowing through is meant steam 



passing between the piston rings and cylinder. 



s is a great source of weakness, besides a great 

 . 



packing properly looked after, all bearings 

 in good shape, you can con ur engine in "good 



1 when you experience any trouble 

 in pulling your load, or keeping up steam with an en- 

 gine that in the past was satisfactory you will find the 

 trouble in some of the places I have mentioned. 



TRANSMISSION OP POWER 



The following may assist you in determining or ar- 

 riving at some idea of the amount of power you are 

 supplying with your enj; 



ce, a i inch belt of the standard grade 

 with the proper tension, neither too tight nor too loose, 

 running at a maximum speed of 800 ft. a minute will 

 one horse power; running 1600 ft, 2 horse 

 powi -'400 ft., 3 horse power. A 2 inch be/ 



the same speed, twice the po\\ 



Now if you know the circumference of your fly 



wheel, the number of revolutions your engine is mak- 



and the width of belt, you can figure early 



amount of ; ou can supply without slipping 



e will say your tly win- 

 40 ii . diameter or 10.5 feet nearly in circumfcr- 



