Improvements in or connected with Alternating Arc Lamps.
Year: 1899

page_text: Date of Application, 14th Nov., 1899
Complete Specification Left, 13th Aug., 1900-Accepted, 15th Sept., 1900
PROVISIONAL SPECIFICATION.
Improvements in or connected with Alternating Arc Lamps.
I, WILLIAM JAMES DAVY, Engineer, of 52, Durham Road, East Finchley, in
the County of Middlesex, do hereby declare the nature of this invention to be
as follows:-
This invention for improvements in or connected with alternating arc lamps
has for its object to prevent the noise of the lamps in burning and consists in
suspending the frame of the lamp from the crown by springs, straps or other
flexible connection, in suspending the lamp from the ceiling or support by a
spring, strap or other flexible connection and in suspending the case of the lamp
from the crown by springs, straps or other flexible connections.
By this arrangement a perfectly silent alternating current lamp is obtained.
Dated this 14th day of November 1899.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.
Improvements in or connected with Alternating Arc Lamps.
I, WILLIAM JAMES DAVY, Engineer, of 52, Durham Road, East Finchley, in
the County of Middlesex, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:--
This invention for improvements in or connected with alternating are lamps
has for its object to prevent the noise of the lamps in burning, and consists in
suspending the frame of the lamp from the crown by springs, straps or other
Hexible connection, in suspending the lamp from the ceiling or support by a
spring, strap or other Hexible connection and in suspending the case of the lamp
from the crown by springs, straps or other flexible connections.
By this arrangement a perfectly silent alternating current lamp is obtained.
The accompanying drawing shows the method of suspending an alternating
current are lamp according to this invention.
The frame b of the lamp is suspended from the crown by springs, straps
or other flexible connections attached thereto by the screws and the
lamp is suspended from the ceiling or support by a spring, strap or other flexible
connection attached to the pulley mounted in the suspender which is
screwed into the crown p of the lamp. The case of the lamp is suspended
from the crown of the lamp 4 by springs s or other flexible connections attached
to the crown by the screws and to the case by the screws ³.

page_text: Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that
what I claim is:-
1. The method of suspending the lamp consisting in suspending the frame
from the crown, the lamp from the ceiling, and the case from the crown, by
springs, straps or the like, for preventing or diminishing the humming arising
from alternating current are lamps.
2. The improved method of susponding alternate current clectric are lamps,
substantially as described with reference to the drawings.
Dated this 14th day of August 1900.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.