erbourg two apparatus of this kind were employed, maintained by a single battery of 50 pairs of Bunsen, affording sufficient light for 800 workmen.
The magneto-electric light was applied for illuminating the lighthouse at Dungeness, England, in 1862, and was introduced at La Heve, France, a year or two later.
The machines employed at each are very similar in construction and entirely so in principle, the English apparatus being arranged after the following manner: —
Eighty-eight bobbins oontents of the wagons or cars are discharged.
A strong belt, carrying a series of buckets, travels over a drum at the lower end and also over one at the upper end, where the buckets tip over and discharge into the upper bin. This, as seen in Fig. 1862, has valved spouts F which direct the contents into either one of the deep bins A. The floors of these bins are over the tracks, and valves in the floor allow the contents of the bins to be discharged into cars or canal-boats, which are brought be
the engagement of the rack-teeth with those of the spur-wheel.
See Dr. Barnard's Report of the French Exposition, pp. 60 – 63.
The same excellent report gives an account and illustration of the Lenoir gas-engine, of which three hundred were, in 1862, in use in France.
The essential portions are a horizontal cylinder with a piston which communicates motion by a crank to a shaft which carries a heavy fly-wheel.
The great weight of this wheel is for a double purpose: to absorb the force suddenr and of ammonia have been made with it. See ammoniacal engine.
R. Waller (English patent, No. 1019 of 1854) uses condensible and permanent gases; as carbonic acid, ether, air. Vaporizes by steam or hot water.
Arbos (English patent, 3108 of 1862), steam and gas combined.
N. H. Barbour (No. 46,769, March 14, 1865) has a traveling car with reservoir supplied with carbonic acid from condensing stations along the route.
See compressed air-engines on this principle; Bompas and others, pp.