Crystal Palace International Electric Exhibition 1881-82
År: 1882
Sider: 102
UDK: 621.30 : 06 (064)
DOI: 10.48563/dtu-0000189
Official Catalogue, Edited by W. Grist with Specially Prepared Plans, showing the position of each exhibitor and indicating the spaces lighted by the various sytems.
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81
is driven by this belting the electric light is less liable to flicker,
and there is a total absence of vibration. Great economy over
all other beltings. Enormous tensile strength. (See Advt.
p. 125.) Gallery baclc of Concert Room.
306.—J. Collis & Co., 138,Fleet Street E.C.,& 72, Denmark Hill.
Camberwell. Illustrations from Drawings and Engravings on.
Wood of Electrical Appliances and Machinery, as supplied to
The Electrician journal, and to scientific apparatus manufacturers
and engineers for insertion in newspapers, trade catalogues, books,
and general advertising purposes. Western Gallery.
807.—H. Whiteside Cook, Stonclon Massey, Brentwood, Essex.
An Electric Governor for screw steamers. A sensitive pressure-
gauge near the screw indicates the pressure of water on it;
when this falls to the point where racing begins, the needle
of the gauge makes contact with, a spring, completing a circuit
through a magnet in the engine-room. This magnet opens the
valve, of a very small steam-cylinder connected with, the throttle-
valve and instantly cuts off the steam. When increasing pres-
sure breaks the contact at the gauge, steam is as instantly turned
full on. Avenue between Pompeian Souse and Chinese Court.
308 .—H. J. Dale, 4, Little Britain. Educational and other
apparatus. (See Advt. p. 123.) . Eastern Gallery.
309 .—J. Darlington, 2, Coleman Street Buildings, Moorgate
Street, E.C. Bornhardt's Patent Electrical Firing Machine.
This machine is designed for the purpose of firing suitable fuses
for blasting in mines, quarries, tunnels, &c. The current is
generated by turning an ebonite disc, and stored in a Leyden jar,
whence it is discharged through, the line wires by pressing a
knob. The advantages of electrical blasting are safety of life,
economy of time, labour, and capital. By the simultaneous
ignition of the charges the whole force is developed at the same
instant, and, being’ brought to bear on the entire mass to be
tended, a much, greater effect is produced than would be the case
if the holes were fired independently, each, hole having to shift
its own burden without any assistance from tlie others. The
fuses used in connection with this machine are thoroughly
reliable, and can be stored any reasonable length, of time without
deteriorating, whether in hot, cold, or damp climates, and be
depended upon to do their work afterwards. The prices of these
fuses will be found much, lower than any other similar article
manufactured. Eastern Gallery.
310 .—Davis & Timmins, Bowling Green Lane, Farringdon.
Road, E.G. Screws, Terminals, Binders, Connectors, Coil Pins,
Battery Clumps, Pole Pieces, and all descriptions of turned work, in
Brass, Iron, Steel, Ebonite, and Vulcanised Fibre, for electric lights,
telephones, and telegraph works. Sole agents for straight drawn
brass and iron wire, specially manufactured for turning purposes.
All sizes kept in stock up to 1| inch diameter. (See Advt. p. 141.)
Southern Gallery.
311 .—Edison Electric Pen and Writing Agency, 14<0, Pen-
church. Street, London (representing proprietor of patent,