An Improvement in Regulating Apparatus for Electric Arc Lamps.
Year: 1894

page_text: Date of Application,
மமபட
May,
4004
Complete Specification Left. 28th Feb., 1895-Accepted, 30th Mar., 1895
Date of Application
Complete Specification Left, 28th Feb., 1895-Accepted, 30th Mar., 1895
PROVISIONAL SPECIFICATION.
An Improvement in Regulating Apparatus for Electric Arc Lamps.
I, SIDNEY JOHN SUTER, of 66 Berners Street, in the County of London,
Electrical Engineer, do hereby declare the nature of this invention to be as
Follows:-
In many electric are lamps a clutch worked by the core of a solenoid or by a
lever moved by the cores of a pair of solenoids is employed to grasp and move one
or both of the carbon holders, so as to strike the arc and also to release the holder
or holders allowing feed of the carbons as they are consumed.
My invention relates to a simple and compact clutch arrangement for this
purpose. A clutch according to my invention cousists of two blades lying
horizontally side by side, each having a semicircular notch in its edge, the two
notches forming a circular hole through which one of the carbon holders passes.
The two blades are jointed together at the one end by a hinge which permits
their other free ends to move up or down independently of each other. One of
these ends is guided to move vertically, the other has projecting laterally from it a
lug which is connected by a link to the core of a solenoid having its coil in the
lamp circuit or to the lever connecting the cores of two solenoids, the one having
its coil in the lamp circuit, the other having a high resistance coil in shunt. When
the blade connected to the core or lever is moved upwards it is laterally canted,
and the other blade being jointed to it, is also laterally canted so that the carbon
holder is firmly clamped between the canted blades and rises with them, striking
the arc; then, as the blade is gradually but partially lowered, the holder is also
lowered allowing the carbons to approach each other, until the hinge of the blades
meets a stop and then their farther lowering allows the blades to resume their
original position, without being laterally canted, so that they release the carbon
holder which is then free to slide down feeding the carbons.
Dated this 28th day of May 1894.
ABEL & IMRAY,
Agents for the Applicant.
An Improvement in Regulating Apparatus for Electric Arc Lamps.
I SIDNEY JOHN SUTER, of 66 Berners Street, in the County of London,
Electrical Engineer, 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 :—
In many electric are lamps, a clutch worked by the core of a solenoid, or by a
lever moved by the cores of a pair of solenoids, is employed to grasp and more one
or both of the carbon holders, so as to strike the arc, and also to release the holder
or holders allowing feed of the carbons as they are consumed. My invention
relates to a simple and compact clutch arrangement for this purpose as I shall
describe, referring to the accompanying drawings.

page_text: Fig. 1 is a front elevation of the upper part of an arc lamp with clutch regulating
apparatus according to my invention,
Fig. 2 is a plan, the cover being removed to shew the mechanism below.
Fig. 3 is a side elevation and Fig. 4 is a plan of the clutch.
The clutch consists of two blades A and B Iying horizontally side by side each
having a semicircular notch in its edge, the two notches forming a circular hole
through which one of the carbon holders C passes. The two blades are joined
together at the one end by a hinge D which permits their other free ends to move
up or down independently of each other. The end of A is guided on a pin E to
move vertically; the end of B has projecting laterally from it an arm F which is
connected by a link to a lever G connecting the cores of two solenoids, the one H
having its coil in the lamp circuit, the other having a high resistance coil in
shunt. When the blade B is moved upwards, it is laterally canted, and the other
blade being jointed to it, is also laterally canted -so that the carbon holder C is
firmly clamped between the canted blades and rises with them, striking the arc;
then, as the blade is gradually but partially lowered, the holder is also lowered,
allowing the carbons to approach each other, until the hinge of the blades meets a
stop K and then their farther lowering allows the blades A and B to resume their
original position without being laterally canted, so that they release the carbon
holder C which is then free to slide down feeding the carbons.
I have described the blade B as being moved by a lever connected to the cores
of two solenoids. It might, however, be connected to the core of one solenoid
having its coil in the lamp circuit, the core in that case being connected to the
arm F, and being arranged so as to be attracted upwards when the current
traverses the coil of the solenoid.
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed I declare that what I
claim is
In regulating, apparatus for an electric arc lamp, a clutch consisting of two
blades, arranged and operating substantially as described.
Dated this 28th day of February 1895.
ABEL & IMRAY,
Agents for the Applicant.