216. Engine with Lift and Force Pump. 218. Vertical Hot-air Engine.
Fig. 217 is “Bailey’s” horizontal hot-air engine (W. H. Bailey & Co., Albion Works, Salford, Manchester) with pulley for driving, made in sizes from ¼ to 3½ horse-power, costing from 35l. to 150l. complete, but requiring a brick stove to be built in connection with it.
Fig. 218 is a “Bailey’s” vertical hot-air driving engine, made in sizes from ⅛ to ½ horse-power, costing from 80l. to 42l. This engine, it will be noticed, has the stove or furnace complete. These engines are also made with pump attached for domestic and other water supply, similar to the “Rider.” Coke fuel is the best, but any combustible can be used, such as wood, peat, cinders, or common coal. The cost of working the “Bailey” engines is about the same as the “Rider.”
Electricity.—Electric motors are not of practical use except in residences, &c., where an electrical installation (worked by an engine) already exists or is going to be fitted; as, to attempt to propel an electric motor by a battery would, though possible, be very expensive, and the battery would have to be of enormous size to obtain any power of importance,—to work a sewing machine, for instance.
In buildings that are lighted by electricity or have an electric apparatus of any description that is worked by an engine and dynamo, an electric motor can be used with success and good results. This form of motor has several advantages, foremost amongst which is its portability and the absence of shaft and belting to transmit the power, and the power can be transmitted long distances, the connection between the dynamo (which is always near the engine) and the motor being by two wires only; thus the power generated by the engine can be carried throughout a building into the most obscure nooks or attics if desired, or one engine of good size will provide power for a neighbourhood, or in other words, the electric power for motive purposes can be transmitted anywhere and everywhere, the same as for lighting.
219. Immisch’s Electric Motor.
Fig. 219 is an Immisch electric motor (Mr. M. Immisch, Malden Crescent, Kentish Town), made in sizes up to 30 and 40 horse-power. The price of 1 horse-power is 24l. Fig. 219 shows the motor as applied to domestic purposes, driving a knife-cleaner and coffee-grinding machine: the same motor can of course be applied to other purposes where rotary motion is applicable.
The Electrical Power Storage Company, Limited, 4 Great Winchester Street, London, E.C., also make electric motors in various powers; Fig. 220 is their smallest pattern, made in sizes from ⅓ to 7 horse-power (effective), costing from 10l. to 90l. The cost of working with power transmitted from the engine (gas or steam, &c.) by means of dynamo and electric motor can be computed as being but little in excess of working direct from the engine itself, but with the advantages already stated; this especially applies where the engine and dynamo are already in existence, as before stated.
