AN IMPROVEMENT OR IM- PROVEMENTS IN SLIDING GASELIERS OR CAS CHANDELIERS
Year: 1877

page_text: LETTERS PATENT to Frederick James Cotterell, of Bumingham, in the County
of Warwick, Manufacturer, for the Invention of "AN IMPROVEMENT OR IM-
PROVEMENTS IN SLIDING GASELIERS OR CAS CHANDELIERS"
Sealed the 6th July 1877, and dated the 26th January 1877
PROVISIONAL SPECIFICATION left by the said Frederick James Cotterell
at the Office of the Commissioners of Patents on the 26th January 1877
FREDERICK JAMES COTTERELL, of Bumingham, in the County of Warwick,
Manufacturer "AN IMPROVEMENT OR IMPROVEMENTS IN SLIDING GASELILRS OR
GAS CHANDELIERS
27
My Invention has for its object to turn off the gas from the gaselier or gas
chandelier by the raising of the sliding part or body of the said gaselici or chandelier-
to its full extent, that is, by raising it into the position in which it is usually brought
when out of use, so that in case of the falling of the sliding part of the gaselier o
gas chandelier by the breaking of the chain or chains of the weights by which the
gaselier of chandelier is balanced, there is no escape of gas into the room oi
apartment
This object I effect in the following manner -In the gas pipe, commonly
called the down pipe, which is connected to the ceiling, and which conveys
gas to the sliding part or body of the gaselier, I fix a tap or stop-cock, the said tap
or stop-cock being situated immediately below the pulley frane, over which the
chains of the balance weights work The plug of this stop-cock is provided with a
long arm or handle projecting from the said ceiling or down pipe, it is preferred to
make the said arm or handle of the stop-cock of a looped or hooked figure
When the stop-cock is open, and gas is permitted to pass through the ceiling or
down pipe to the sliding body of the gaselier, the arm or handle of the said stop-
cock is horizontal or at right angles to the said ceiling or down pipe, but when the
said arm or handle of the stop-cock is turned through a quadrant, in the manner
herein-after described, so as to place it vertical or parallel with the ceiling or down
pipe, the stop-cock is closed, and the gas is cut off from the sliding part of the
gaselier
The closing of the stop-cock is effected by the raising of the sliding part of the
gaselier, that is to say, when the sliding part of the gaselier is raised to its full

page_text: extent on the down pipe the top of the water cup of the said sliding part striking
against the projecting horizontal aim or handle of the stop-cock below the pulley
fiame tuins the said handle through a quadrant and closes the stop-cock The gas
is thus cut off from the sliding part of the gaselier, and in case the latter should fall
there is no escape of gas into the 100m or apartment
When it is required to use the gaselier it is only necessary to bring the projecting
handle of the stop-cock into a horizontal position, to reopen the said stop-cock and
permit of the gas passing to the sliding part of the gaselier
The opening of the stop-cock may be conveniently effected by a hooked rod being
engaged with the looped or hooked handle of the stop-cock, or the opening of the stop-
cock may be effected by a sinall lever attached to the water cup A cord is attached
to this lever, and by pulling the said cord the said lever is engaged with the aim of
the stop-cock By now pulling down the sliding part of the chandelier the said
lever opens the stop-cock, and allows the gas to flow freely till the chandelier is
again raised
But I do not limit myself to these methods, as a depending chain
attached to the stop-cock handle, or other equivalent means, may be used for the
same purpose
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Frederick James Cotterell in the Great Seal l'atent Office on the
19th July 1877
FREDERICK JAMES COTTERELL, of Bingham, in the County of Warwick,
Manufacturer AN IMPROVEMENT OR IMPROVEMENTS IN SLIDING GASELIERS OR
25
CAS CHANDELIERS"
My Invention has for its object to turn off the gas from the gaselier or gas
chandchic by the raising of the sliding part or body of the said gaselier oi chandelier
to its full extent, that is, by raising it into the position in which it is usually brought
when out of use, so that in case of the falling of the sliding part of the gaselier or
gas chandelier by the breaking of the chain oi chains of the weights by which the
gaselie on chandelier is balanced, there is no escape of gas into the 100m or
apartment
This object 1 effect in the following manner -In the gas pipe, commonly called
the down pipe, which is connected to the ceiling, and which conveys gas to tho
sliding part or body of the gaselier, I fix a tap or stop-cock, the said tap or stop-
cock being situated immediately below the pulley fiame, over which the chains of
the balance weights work The plug of this stop-cock is provided with an aim,
lever, or handle projecting from the said ceiling or down pipe, the end of the said
arm, lever, or handle may be hooked or have a loop upon it
When the stop-coch is open, and gas is permitted to pass through the ceiling o
down pipe to the sliding body of the gaselic the arm, lever o handle of the said
stop-cock is honzontal, or at right angles to the said ceiling or down pipe, but when
the said arm, or lever, or hande of the stop-cock is turned through a quadiant, in the
manner herein-after described, so as to place it vertical or parallel with the ceiling
or down pipe, the stop-cock is closed, and the gas is cut off from the sliding part of
the gaselier
The closing of the stop-cock is effected by the raising of the sliding part of the
gaseler, that is to say, when the sliding part of the gaselier is raised to its full
extent on the down pipe, the top of the water cup of the said sliding part striking
against the projecting houzontal arm or handle of the stop-cock below the pulley
fiame tuins the said handle through a quadiant and closes the stop-cock The gas
is thus cut off from the sliding part of the gaselies, and in case the latter should
fall there is no escape of gas into the room or apartment
When it is required to use the gaselier it is only necessary to bring the projecting

page_text: handle of the stop-cock into a horizontal position, to re-open the said stop-cock and
permit of the gas passing to the sliding part of the gaselier.
The opening of the stop-cock may be conveniently effected by a hood rod being
engaged with the looped or hooked handle of the stop-cock, or the opening of the
stop-cock may be effected by a small lever attached to the water cup
A chain or
coid is attached to this lever, and by pulling the said chain or cord the said lever is
engaged with the arm of the stop-cock But I do not limit myself to these methods,
as a depending chain to the stop-cock handle, or other equivalent means, may be
used for the same purpose.
I will now proceed to descube, with reference to the accompanying Drawing, the
manner in which my Invention may be performed
Figures 1 and 2 represent elevations of the upper part of a water-slido gasolier or
gas chandelier provided with my improvements, Figure representing the stop-cock
on the down or ceiling pipe open and the gaselier ready for use, and Figure 2 the
same after the sliding body of the gaselier has been raised to its full extent and the
gas shut off from the said gaselier
Figures 3 and 4 represent in vertical section, drawn of the full size, a portion of
the down or ceiling pipe and the stop-cock of the same, and Figure 5 is a horizontal
section of the gasclic taken at the line a, a, Figure 2, in Figure 3 the stop-cock is
represented open and in Figures 4 and 5 closed
The same letters of reference indicate the same parts in the several Figures of the
Diawing
h
619 the down or coiling pipe by which gas is supplied to the gaselier, the said
pipe being supported by the ceiling plate at c, and furnished with the pulley fiame d
as usual, e is the tap or stop-cock fixed to the down pipe b, at a short distance
below the pulley framed By means of the said stop-cock e the gas is permitted to
pass to the gaseliei, oi is shut off from the gaseliei On the end of the plug f of
the stop-cock e is an arm or lever, or handle g, by which the stop-cock is opened
and closed In the said plug f of the stop-cock is a passage (see Figure 4), the
said passage being so arranged that when the stop-cock is closed, for cutting off the
supply of gas to the gaselier, an is permitted to enter the body of the gaselier The
object of the au supplied to the body of the gaselier by the passage in the stop-
cock, when the gas is shut off, is to prevent the water in the water slide passing
into the body of the gaseliet when the said body is pulled down, the said passage
establishing an equilibrium between the external atmosphere and the interior of the
pipe b below the stop-cock e, is the ordinary water cup at the head of the sliding
body of the gaseliei, and below the said ordinary water cup is a supplementary
water cup, which serves as a reservou for the water to be supplied to the water slide,
and also indicates the height of the water in the water slide The outer tube h of
the sliding body of the gaselier opens into the reservoir / by the slot (*
When it is wished to shut off the supply of gas to the gaselier the sliding body h
1s raised to its full height, the top edge of the water cup i is thereby made to
strike against the lower edge of the arm, or lever, or handle g of the plug of the
stop-cock, raising the said arm or lever from the horizontal position, represented in
Figure 1, to the vertical position, represented in Figure 2, the stop-cock e is
thereby closed and the supply of gas to the gaseler cut off, and at the same time,
by means of the passage h in the plug f, air is permitted to pass through the lower
part of the down pipe b into the body of the gaselier, for the purpose herein-before
explained When the gas is thus turned off the escape of gas by the falling of the
sliding body of the gaselier, by the breaking of the balance chains, is effectually
provided against and accidents from explosions prevented
When it is wished to light the gaselie the sliding body is pulled down, so as to
remove the water cup from the aim or lever g of the stop-cock, and the said arm
or lever g is then turned into the horizontal position, Figure 1, by means of the
depending chain m attached to the said arm or lever, the stop-cock e is thereby
opened and gas passes into the body of the gaselier, and the air passage in the
plug is at the same time closed, the parts occupying the respective positions shown

page_text: in Figures 1 and 3 Instead of opening the stop-cock e by means of the chain m
as represented, a loop or eye may be made at the end of the aim or level g, and the
said arm of lever inay be pulled down by means of the hooked end of a 10d
engaging with the said loop or eye, or a lever jointed to the water cup i, as herein-
before described, may be used, or other means of opening the stop-cock by the pulling
down of the arm or lever g may be adopted The stop-cock e, f, in the down pipe b,
besides serving for shutting off the gas by the raising of the sliding body of the
guseliei, may also be used-for-1egulating the supply of gas to the gaselier
At the supplementary water cup or reser von 7, below the ordinary cup 1, the water
slide of the gasolier is filled, the water poured into the said reservon passing to
the slide by the opening 12 The cup or reservou 7 is partly filled with water, and
thus serves as a 10se vou, from which the water slide is supplied
By means of the slot in the rescivon the height of the water in the slide can
be ascertained, and hence the said slot acts as a gauge in filling the water slide As
the top of the cential pipe in the sliding part of the gaseliei, in communication
with the aims of the gaselie, is above the level of the icservon 6, no water can
pass from the said resei von into the said central pipe
Instead of two cups one deep cup may be used In this case when the said cup
is raised the stop-cock e is within the upper part of the cup, which said upper part
is perforated below the level of the central gas pipe of the gaschier body
Although I have described and represented my arrangement for shutting off the
gns in connection with a gaselier having a water slide, yet I wish it to be understood
that my Invention is equally applicable to gaseliers in which, in place of a water
slide, a cork slide, or a metallic piston, or other packing is used
Having now described the nature of my Invention, and the manner in which the
same is to be performed, I wish it to be understood that I claim as my Invention of an
improvement or improvements in sliding gaseliers or gas chandeliers, the construction
and aangement of parts, herein-before described and illustrated in the accompanying
Diawing, for turning off the gas from the gaselier or gas chandelier when the sliding
part or body of the same is raised to its full extent, and for again turning on the gas
when the gaselier or gas chandelier is required to be used, that is to say, connecting to
the ceiling or down pipe of the gaselier or gas chandelier, and below the pulley fiame
a tap or stop-cock having a projecting aim, lever, or handle which, on the raising of
the gaselier or gas chandelier, is turned through a quadiant by the action of the
water cup, and the tap or stop-cock thereby closed and the gas shut off, the tap or
stop-cock being opened by the pulling down of the sand aim, level or handle,
substantially as described and illustrated, also the combination in a water-slide
gaselic or gas chandelier of the tap or stop-cock described with a double water cup,
for the purposes described and illustrated, or with a deep single water cup, as
described.
In witness whereof, J, the said Frederick James Cotterell, have hereunto set
my hand and scal, this Tenth day of July, in the year of our Loid One
thousand eight hundred and seventy-seven
FREDERICK JAMES COTTERELL (LS)
Witness,
GEORGE SHAW