82 Tfaxsacttoxs of the A21ERICAX Institute. 



[Allowed. True, also of Ilardick's pump, but not true of the Blake 

 pump on exhibition.] 



" 3d. Superiority of style, design-, ^vorkmansliip and finish." 

 [Allowed, though we find the Blake pump of a more compact design 

 or pattern, the Niagara being fjuite the contrary.] 



"•ith. More costly material and consequent durability." [Not 

 necessarily a peculiarity of this pump, 'though it appears to be a fact 

 in respect to the three pumps in competition at this exhibition.] 



" 5th. Stronger and heavier parts." [Same remarks as to 4tli."] 



" Gth. Larger suctions, discharges and inside ports than in any 

 other." [Allowed, though substantially included in 8th point.] 



" Tth. Our valve seats are easily replaced when worn, while in the 

 ' Niagara pump ' the entire chamber is lost." [Allowed.] 



" 8th. "We have a nearer direct course through large ports in our 

 -water end, and consequently less friction." [Allowed.] 



"9th. Our steam and water piston packing is of best make and 

 material, and can be expanded until entirely worn out." [Not nec- 

 essarily a peculiarity of this pump.] 



" lOtli. With our steam valve it is impossible to strike the cylinder 

 head, and this is true of no other direct acting pump." [Allowed as 

 to the three pumps on exhibition.] 



" 11th. Our maximum and minimum speed will compare with any, 

 and much less wear at high speed." [Allowed as to first part.] 



" 12th. Should our steam valve ever become spoiled, the tappet arm 

 will push over the valve, and thus perform the work. This is true of 

 no other make." [Allowed as to first part, and as to second so tar as 

 we are at present advised.] 



" 13tli. We reach our steam valve by removing four nuts only, 

 while in the Niagara it is not only necessary to remove the water- 

 chest cover, but also to disconnect the steam pipe." [The method of 

 construction whereby the steam pipe is attached to the cylinder, is 

 certainly a valuable feature in steam engines.] 



" 14th. It runs with the least noise." [Allowed over the Niagara.] 



" 15th. It is the only pump made with ground joints." [Allowed, 

 we know of no other pump of this class in which all the joints are 

 ground.] 



" ICth. It is the only pump made w^iercin the valves in large 

 sizes are reached without the use of any tools." [Allowed so far as 

 we are at present advised.] 



" 17th. It is the only pump made having a hammered (by hand) 



