Printing : a practical treatise on the art of typography as applied more particularly to the printing of books (1904)
Jacobi, Charles Thomas · London : G. Bell & Sons · leaf 294
s sides, which keep themfree from dirt and dust. The principle of these engines is:an admixture of gas and air in the cylinder is exploded bymeans of a small gas jet, this giving the necessary impetusto the fly-wheel. These engines should be kept scrupulouslyclean: therefore the covering in is… … FIG. 145. VERTICAL GAS ENGINE. various details which add to the efficiency of the engine andalso reduce the consumption of gas. Among other improve-ments it may be mentioned that the following accessorieshave been added to almost all engines. An air silencer is 264 PRINTING now supplied to reduce…
