AMERICAN INSTITUTE. 97 



of advantage claimed for this press over many others in use for 

 the same purposes are, 1st, The extreme power obtained witli 

 slight exertion. 2d, The absence of any appreciable degree of 

 friction on any part of the press. 3d, The smallness of space 

 required to operate it. This is a good press. 



\^Silver medal awarded. 



JYo. 1771 — Hydraulic Jacks. 

 R. Dudgeon, 8 Columbia-street. Valuable, and worthy of favorable 

 notice. [Silver medal awarded. 



JVo, 774 — dnti-Friction Metal, 

 B. F. Lawton, Troy, N. Y. This metal was tested for three days 

 with the greatest care upon Wm. E. Leonard's patent dynamome- 

 ter. The result as compared with Babbitt's, tried under the same 

 circumstances : The Lawton boxes lubricated with six drops of 

 oil, and clamped upon a busliing with 100 lbs. strain, made 8880 

 revolutions, exhausting 11| of power. The same boxes when 

 warmed, or on a second trial immediately following the first, with 

 110 lbs. strain, and four drops of oil, made 7680 revolutions, ex- 

 hausting 7| of power. The Babbitt boxes lubricated with six 

 drops of oil and clamped upon a bushing with a strain of 100 lbs., 

 made 3520 revolutions, exliausting 6^ of power. The tests 

 throughout three days remained about the same. Lard oil was 

 used. [-^ gold medal awarded. 



THOMAS B. STILLMAN, 

 D. C. AMBLER, 

 W. H. ELLET, 

 THADDEUS SELLECK, 

 ALFRED S. BOWEN, 



Judses. 



REPORT OF THE JUDGES ON FIRE ENGINES, HOOK 

 AND LADDER TRUCKS, AND HOSE CARTS. 



Report of the judges of the 27th Annual Fair of the American 

 Institute, 1855. 



We the undersigned, judges of fire engines, hose carriages, &c., 

 appointed by the Managers of the 27 th Annual Fair of the 

 American Institute, held at the Crystal Palace in the city of New- 

 York, October, 1855, beg leave to report : 



That we found three classes of fire engines on exhibition, viz : 

 1st, 2d and 3d. That on Wednesday, the 31st day of October, a 



[Am. Inst.] 7 



