128 



TRANSACTIONS OF THE 



Long''$ Improccd Marine Salinometer Case, for Steam Boilers. 

 Joseph Gricc, 90 Wall street, N. Y. 



This improvement consists in attaching the cylinder 

 A to the cylinder B, having a communication C, as a 

 means of safetj^ to the hydrometer, perfect accuracy 

 in testing the density of water, and insuring the en- 

 gineer against danger from scalding, &c. 



EXPLANATION. 



' The cylinder or other shaped vessel A is connected 

 with the boiler by the pipe and stop-cock G, the pipe 

 G being closed at the top and having openings on the 

 side, near the top, E E. 



The water coming from the boiler and passing the "^ 

 stop-cock G, makes its exit through the openings, 

 EE; at this point the steam is liberated from the 

 water, and escapes through the openings, f f. The 

 water falls into the cylinder A, passes through the 

 opening C, and rises to the water level, s s s s, in 

 both cylinders; D is an overflow pipe to carry off the 

 surplus water, and to keep up a sufficient current to 

 maintain the water to be tested, at the required tem- 

 perature. By turnii^ the stop-cock H, both cylinders 

 can be discharged. T is a thermometer, fitting in a 

 slide. X is the h3'drometer. K Ls the cover for 

 closing the case when not in use. I is a bi'acket for 

 securing the instrument to the boiler, bulkhead, or 

 other suitable place. 



This instrument affords a ready means of drawing 

 water from a steam boiler, under any pressure and 

 temperature, without ebullition in the cylinder B, or 

 oscillation to the hydrometer. 



[^jI bronze medal awarded. 



