in a cylinder, and filled with ice, it has several in the cooler can only be drawn to the same level, re- timony that they operate in the most satisfactory manner. The construction of the machine will be advantages. maining stationary at that point until a fresh portion used ; it does not require… … sition, and are thus put out rectly from the cooler where DRAKE'S BORING MACHINE. of the way. it is not desired for the The patent for this invention was granted April draught tube, as in case where a draught cooler is alrea- a protector from the ice. At T is a joint for readily 23, 1861, and…
Patents · Claim · Gun · Inventor · Combination · Patent office · Manner · Longitudinal strain · Years ago · Scientific American · Letters patent · Purpose set · Cast steel · Address munn · Purposes set · Surface condensers
Internet Archive · Public domain (published before 1931). Free to use for anything.