194* 



TBANSACTIONS OF THE 



Wright's "Water Filter. 



Water Filter, 



I 



Jas. H. Wright, 835 Broadway, N. Y. An excellent filter. 



\J1 Ironze medal awarded,. 

 Portable Gas Works. 



S. Coates, 376 Broadway, N. Y. The following is a statement 

 from the exhibiter : 



The machine is remarkable for its extreme simplicity, safety 

 and economy; it consists of a retort, wash-box, or condenser, 

 gas holder and tank, which are common to all gas works. We 

 prefer the oil made from rosin, commonly called gas oil, because 

 it will produce more gas, and is the cheapest known. It is an 

 article of general commerce, and can be purchased in any of our 

 eastern seaport towns at fifteen to eighteen cents per gallon, and 

 the supplies from our southern states is inexhaustible. Each gal- 

 lon of this oil will make about eighty cubic feet of gas; depend- 

 ing upon its quality, and care in its use, as well as the extent of 

 operations carried on. 



In our large works, where the heat on the ret6rts is continuous 

 for many successive hours, there is a very great economy in fuel, 

 and a small amount of coal may be used to produce double the 

 quantity of gas; for when the retort is once hot it requires com- 

 paratively little fuel to maintain the heat. 



One of the greatest difficulties encountered by inexperienced 

 persons, has been freeing the retorts from an incrustation of car- 



