Improvements in and connected with Lamps.
Year: 1893

page_text: Date of Application, 16th Mar., 1893
I
Complete Specification Left, 13th Jan., 1894-Accepted, 24th Feb., 1894
PROVISIONAL SPECIFICATION.
Improvements in and connected with Lamps.
I, DANIEL CALVERT, of Commercial Street,. Batley, in the County of York,
Artist, Carver, and Gilder, do hereby declare the nature of this invention to be as
follows:
The object of my invention is to provide means for automatically extinguishing
lamps immediately they are placed out of centre or tilted, or when lifting them off
the table, if in the latter case it is required to keep the light in, a device or stop
is provided for locking the means actuating the extinguisher so as to prevent it
putting out the light.
In carrying out my invention I employ a rod inside the pedestal or stand of the
lamp which is carried upwards through the lamp body or vessel and connected to
the extinguisher by means of a grooved flange engaging with the slide of the
extinguisher.
The said rod passes through a tube secured in the lamp body or vessel which
acts a guide and makes a perfect joint and prevents the paraffin or oil escaping.
The said rod is connected to a crank which has metion imparted to it by the
expansion and contraction of a spiral or other spring fixed on a suitable arm which
is slightly longer than the length of the pedestal or lamp stand, so that when the
lamp is placed on the table the arm is moved upwards so working the crank (and
contracting the said spring) and drawing down the rod and extinguisher ready
for lighting; immediately the lamp is tilted the spring expands and causes the
parts to operate the extinguisher and put out the light.
In some cases the crank for obtaining the required motion may be dispensed with
and the motion obtained by means of a right and left hand screw or the mechanical
equivalent thereof.
When it is required to lift the lamp from off the table and carry it away a device
or stop is provided for locking the said means so as to prevent it acting upon the
extinguisher, the said device or stop may consist of a finger rod or catch engaging`
with the rod connected with the extinguisher and so looking it.
Dikush Mouch 1902.
JOHN E. WALSH,
Royal Exchange Chambers, Boar Lane, Leeds,
Patent Agent to the Applicant.
JOHN E. WALSH,
Royal Exchange Chambers, Boar Lane, Leeds,
Patent Agent to the Applicant.
COMPLETE SPECIFICATION.
Improvements in and connected with Lamps.
I DANIEL CALVERT of Commercial Street, Batley in the County of York,
Artist, Carver and Gilder, 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 :—
The object of my invention is to provide means for automatically extinguishing
lamps, immediately they are placed out of centre or tilted, or when lifting them off
the table, if in the latter case it is required to keep the light in, a device or stop
is provided for locking the means actuating the extinguisher, so as to prevent it

page_text: Fig. 1 is another view of rods connected by grooved flange.
Fig. 2. is a modification of Fig. 1.
Fig. 3. is a plan of burner and extinguisher.
Fig. 4. is a view of extinguishers applied to a duplex burner, showing same in
position when the lamp is burning.
Fig. 5. is a similar view to Fig. 4, showing position of extinguishers, when the
light is extinguished.
Fig. 5 shows another method of raising and lowering extinguisher slide..
Fig. 6. is a view of stable or wall lamp showing flame extinguished.
Fig. 7. is a view of stable or wall oil lamp showing flamo'burning.
Figs. 8 and 9 show my arrangement applied to a hall, window or suspended
lamp.
Figs. 10 and 11 show plan and elevation of extinguisher for circular wick lamps
Fig. 1.
In carrying out my invention I employ a rod A, inside the pedestal or stand B,
of the lamp, which is carried upwards through the lamp body or vessel C, and
connected to the extinguisher D, by means of a second rod D¹, engaging with a
grooved flange B', upon one end of the aforesaid rod A.
The said rod A passes through a tube or bush E, secured on the lamp body or
vessel, which acts as a guide and makes a perfect joint, and prevents the paraffin or
oil escaping.
The said rod A is connected to a crank E, pivotted at F', the said crank has
motion imparted to it by the expansion and contraction of a spiral or other
spring G, fixed on a suitable arm H, which is slightly longer than the length of the
pedestal or lamp stand B, so that when the lamp is placed on the table, the arm is
moved upwards, so working the crank (contracting the said spring) and drawing
down the rod A, and extinguisher D. ready for lighting; immediately the lamp is
lifted or tilted the spring expands, and causes the parts to operate the extinguisher
and puts the light out.
When it is required to lift the lamp from off the table, and carry, it away, a
device or stop is provided for locking the rod A, so as to prevent it acting upon
the extinguisher, the said device or stop may consist of a finger, rod or catch A¹
engaging with notches A' upon the rod A (connected with the extinguisher) and so
locking it, an indiarubber bottom A' upon the finger rod acts as a spring and keeps
it clear when not pressed.
In some cases the crank F for obtaining the required motion may be dispensed
with, and a tube J employed (see Fig. 2), the said tube is placed within the body of
the lamp, passes up the lamp burner K, and terminating in a guide L, working,
within this tube is a suitable leg or rod A. before described, one end of this rod is
cranked and attached to one end of a pivotted lever M, the other end being
attached to an arm or crank N, attached to a stud P, upon the extinguisher D, so
that when the lamp is placed upon a table or other staud, the said rod compresses
a spiral spring R, within the said tube, and operates upon and draws down the
extinguisher, the lamp being then ready for lighting; immediately the lamp: is
tilted the said spiral spring R within the tube, expands and operates the rod A,
levers M, crank N, and extinguisher D, in such a manner as to immediately put
out the light
Or in place of the levers, cranks and fingers I may employ (see Fig. 5^) a
notched or toothed wheel E engaging with racks or notched or toothed rods G'
and G, within a suitable tube G³, one rod G¹ being connected to the extinguisher
alide D, and the other G³ resting upon the table when the lamp is burning,
When the lamp is tilted a spiral spring upon the said rod Goperates
as before described, and as the said rod is extended it raises
upon same

page_text: by means of pinion, the rod G¹ connected to the extinguisher slide, so putting the
light out.
When the lamp is again placed in position the extinguisher slide is lowered and
remains so until the lamp is tilted or upset.
When my invention is applied to stable or wall lamps (see Figs. 6 and 7) the
extinguisher D is operated by means of fingers or levers S, S', and spring T;
when the said lamp is placed upon a wall bracket or nail, its weight bearing upon
the finger or lever S', depresses the spring T, at the same time drawing down the
extinguisher D (see Fig. 7), the lamp being then ready for lighting; but
immediately the lamp is taken off the nail, the spring is released, operating on the
fingers, levers, and extinguisher, immediately putting out the light.
When applied to a window or hall lamp (see Figs. 8 and 9) the said extinguisher
is operated by means of an arm U and pivotted lever U₁, connected by a wire or
rod V to a spring clip or hook W, employed for suspending the lamp.
When the lamp is taken down or otherwise removed from the hangers, the
extinguisher is operated upon and extinguishes the light as shown at Fig. 8, when
the spring clip or hook is again placed upon the hanger, the extinguisher is drawn
down and the lamp is again ready for lighting as shown at Fig. 9.
When my invention is applied to circular wick lamps, the oxtinguisher (see
Figs. 10 and 11) is placed upon the vertical rod A, and consists of an annular
disc with flanges turned downwards, a second annular disc similar to the one
before described but smaller, fits within the aforesaid disc, so leaving a space
(sufficiently large) between the flanges for the wick to fit when the aforesaid rod
is operated upon, and the discs descend to put out the light.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In automatically extinguishing lamps when moved or tilted, the combination
of the extinguishing slides D, rods A, D' and grooved flange B³, crank F with
pivot F, arm H, and spring G, substantially as shown and described.
2. In automatically extinguishing lamps,, preventing the extinguishing when
lifting the lamp, by means of a finger rod A', operating upou recesses or teeth A*
upon the rod A, substantially as shown and described.
3. In automatically extinguishing lamps the combination of extinguishing slide D,
guide L, pivotted lever M, arm N, tube J, spring R and rod A, substantially as
shown and described.
4. In automatically extinguishing lamps for hanging on walls the combination
of extinguishing slide D, pivotted levers S, S' and spring T, substantially as
shown and described.
5. In automatically extinguishing hanging or ball lamps. the combination of the
extinguisher D, arm U, pivotted lever U, wire V, and clip or hook W, substan-
tially as shown and described.
WILD A WH
JOHN E. WALSH,
Crossley Street, Halifax, and Royal Exchange Chambers, Leeds,
Patent Agent for the Applicant.