for cities. On a large scale, the common apparatus from $1.75 fo $2, the latter from $5 to $7, Forvil- retort is formed with a series of inclined or spiral sur- for making coal-gas is very perfect; and is entirely dif- lages, factories, hotels and other public buildings, also faces, 11, and the… … paratus may be seen. The second consists in the pass- proprietors are experienced ing over of a light condensa- MARSH'S GAS APPARATUS. in the manufactured of all ble vapor of a very disagree- one where the heat is lowest, then it spreads and passes kinds of gas apparatus—coal as well as resin and…
Patents · Claim · Combination · Purpose · Improved · Manner · Purpose set · Arranged · Revolving portion · Divided roll · Patented october · Great Britain · Scientific American · Carbonic acid · Purposes set · Patent office · Cubic feet
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