Year: 1899

page_text: Date of Application, 11th Aug., 1899
Complete Specification Left, 11th May, 1900--Accepted, 23rd June, 1900
I, HENRY SALSBURY, of 124, Long Acre, London, Lamp Manufacturer, do
hereby declare the nature of this invention to be as follows:
This invention relates to certain improvements connected with acetylene
lamps.
To carry this invention into practice, I employ a detachable carbide holder
with open top to be fitted within the lower part of a lamp body, the upper of
which is the water vessel.
The lower part of the body is formed with side openings and a base, in which
base are a series of inclined recesses of such a depth that a circular shaped or
other plate with a hand lever can be moved circularwise on a pivot pin and
kept in contact by a spring encircling said pin.
The plate has corresponding projections and these escape from the inclined
recesses when moved in one direction and rise up to jam the carbide holder
which rests upon the plate and forces it up against the bottom of the water
vessel where there is a packing in a gas tight manner, the resiliency of the
packing allowing the plate to rebound slightly coupled by the pull of the
spring of the pivot for the points of the projections of the plate to enter other
recesses to lock the plate and the carbide holder when the lever is thrown round
to its fullest extent.
The same result can be had if the circular moving plate had winged lips to
drop into inclined recesses.
The lever instead of having a circular motion, as before explained, may be
arranged for a down thrust for the release of the grip against the bottom of
the carbide holder in which case an angled lip would be provided at the inner
end of the lever to bear against the carbide holder and lock it firmly when the
lever is thrown up to rest against the bottom of the lamp.
The lamp body is provided with a branch for leading the gas as generated to
the lighting portion of the lamp and said branch can have a regulating screw
by which the height of the flame can be determined.
I prefer the branch to have a chamber for holding some absorbent of mois-
ture in order that the gas may be fairly dry at the point of ignition.
The screw can be used also for shutting off the supply of gas to the burner.
The water vessel is surmounted by a sunken cap having holes and over which
a perforated ferrule can be turned on the hit and miss principle to open or to
close the holes in the sunken cap as desired.
The ferrule as a cover may have an arrow or pointer working within a recess
and notches to fix it. The water supply to the carbide holder is governed by
a screw pin down the centre of the water vessel at the base, the screw pin being
from within the sunken cap.
T
1000
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Henry Salsbury.

page_text: Improvements connected with Acetylene Lamps.
I, HENRY SALSBURY, of 124, Long Acre, London, Lamp Manufacturer, 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 relates to certain improvements connected with acetylene
lamps and will be understood from the following description aided by the
accompanying drawings in which Figure 1 is a side elevation of a complete
lamp, the carbide holder being shown in an unlocked position.
Figure 2 is a section through the line a, a, of Figure 1 and showing the
position of the locking plate when in an unlocked condition.
Figure 3 is a side elevation of the lower part of a lamp, the carbide holder'
being shown in a locked position.
Figure 4 is a section through the line 6, b, of Figure 3 and showing the
position of the locking plate when in a locked condition.
Figure 5 is an elevation of a portion of the bottom of a lamp and carbide
holder and showing a modified form of locking lever.
Figure 6 is a perspective elevation of the locking lever shown in Figure 5.
Figure 7 is an elevation of a portion of the bottom of a lamp and of the
carbide container with the locking lever having angled projections for engag-
ing recesses in the base of the lamp for locking the carbide container.
Figure 8 is a section through line c, c, Figure 7.
Figure 9 is a sectional elevation of a lamp body with the lamp and base
removed.
Figure 10 is a plan of Figure 9.
To carry this invention into practice, I employ a detachable carbide holder A
with open top to be fitted within the lower part B of a lamp body, the upper C
of which is the water vessel. The lower part B of the body is formed with
side openings and a base D, in which base are a series of inclined recesses E
of such a depth that a circular shaped or other plate F with a hand lever can
be moved circularwise on a pivot pin G.
The plate has corresponding projections H and these escape from the inclined
recesses E when moved in one direction and rise up to jam the carbide holder A
which rests upon the plate F, and forces it up against the bottom of the water
vessel C where there is a packing I (see Figure 9) in a gas tight manner, the
points of the projections H of the plate engaging the base D to lock the
plate F and the carbide holder A when the plate F by its lever F¹ is thrown
round to its fullest extent.
The same result can be had if the circular moving plate had winged lips H
to drop into inclined recesses, as at Figures 7 and 8.
The lever or plate F instead of having a circular motion, as before explained
and as shown at Figures 1, 2, 3, 4, 7 and 8, may be arranged for a down thrust,
as at Figures 5 and 6, for the release of the grip against the bottom of the car-
bide holder A in which case an angled lip J would be provided at the inner
end of the lever F to bear against the carbide holder A and lock it firmly when
the lever F is thrown up to rest against the bottom D of the lamp.
The lamp body C is provided with a branch K for leading the gas as generated
to the lighting portion L of the lamp, and said branch has a screw M carry-
ing a perforated or slotted tube M¹ holding within the branch K some absorbent
of moisture, such as cotton wool, in order that the gas may be fairly dry at the
point of ignition.

page_text: The water vessel C is surmounted by a sunken cap P having holes and over
which a perforated ferrule Q can be turned on the hit and miss principle to
open or to close the holes in the sunken cap P, as desired.
The water vessel C carries at its base a plug R carrying a valve S, said plug
having side openings T and a screwed opening, into which screwed opening a
valve rod U engages for opening and closing the valve S, the rod U extending
up through the water vessel C and projecting above the sunken top P where it
is encircled by a spring V and provided with a pointed button W, the turning
of which will by its pointer X indicate the degree of opening of the valve
through markings on the sunken cap Q, see Figure 10, thus the degree of supply
of water through the valve S to the carbide in the container Ä as also the
generation of the gas can be regulated according to desire.
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 improvements connected with acetylene lamps consisting of the means
of locking the carbide container in the lamp and against a packing for secur-
ing a gas tight joint in combination with a water vessel and also with a gas
supply pipe carrying an absorbent of moisture, substantially as and for the
purposes set forth.
2. In portable acetylene gas lamps, the employment of a plate or lever hav-
ing projections on or from its underside for engagement with recesses in the
base of the lamp for releasing the carbide container and with the base of the
lamp for locking the carbide container, as set forth.
3. In acetylene gas lamps, the combination of water vessel C carrying valve S
and rod U, gas branch K having an absorbent of moisture therein, packing I,
open sided bottom B, having lever locking device F, said open sided bottom B
carrying loose open topped carbide container capable of being held and secured
and in a gas tight manner against the packing I, by the lever locking device F,
as set forth.