90 Transactions of the American Institute. 



and is free from liability to corrosion. The puni]) is also provided 

 with a swivelling handle. We recommend for this pump a first 

 premium as the best sink pump. 



No. 475. House and Shij> Pumps. — James Coleman & Co., New 

 York city. 



These Avere a number of well finished pumps, of the class usually 

 employed for forcing water up in houses above the head of the 

 aqueduct water. The pumps were not in operation, and we did not 

 discover that they were materially different from pumps of this class 

 now in the market, made by other manufacturers. 



Xo. 179. The American Submerged Pump. — Bridgeport Manu- 

 facturing Co., Bridgeport, Conn. 



We were highly pleased and entirely satisfied with the construction 

 and operation of this pump. It is a double acting lift and force 

 j)ump, adapted for use in w^ells and on ships. We carefully tested 

 one of these pumps, to determine its merits relatively to other lift 

 and force pumps. We found that with a one-inch discharge pipe the 

 pump would deliver twenty gallons of water per minute, from a 

 depth of fifty feet, when operated wnth but one hand, and that with 

 a three-eighth inch nozzle it would throw^ a solid stream of water 

 seventy feet in the air. Its efliciency as a ship pump is beyond 

 question ; and as a farm pump, for watering gardens, lawns, washing 

 carriages, &c., &c., it is unsurpassed. The pump consists of few 

 parts ; there is a hollow piston cast in one piece, and two metal 

 valves inserted through openings at opposite sides of the piston, the 

 discharge pipe is screwed into the piston, and the piston is placed in 

 a double chambered pump cylinder, each chamber being provided 

 j\'itli a puppet valve, and in this way water is supplied above and 

 below the piston, and hence the pump is double acting, and dis- 

 charges a continuous stream. The parts are artistically finished and 

 ■well fitted, and no packing is employed save when the pump is to be 

 used as a suction pump, as may sometimes be desirable ; in such case, 

 packing rings, expanded by water pressure, are used. The exhibitors 

 claim for this pump "great power, simplicity of construction, dura- 

 bility, ease of action, and that the pump is a positively non-freezing 

 pump," and m'c are pleased to allow these claims in full for this 

 efficient pump. AVe recommend that the exhibitors of this pump be 

 awarded a first ])remium for the best force, ship and well pump. 



No. 3S5. House and Shlj) Pump. — W. S. Carr & Co., Kew York 

 city. 



