Improvements in or connected with Gas Brackets.
Year: 1898

page_text: Improvements in or connected with Gas Brackets.
JOHN WYNN, Auctioneer, House, Land, and Estate Agent, St. Mary Street, Cardiff,
do hereby declare the nature of this invention to be as follows:-
in.
A bracket back the plug of which is so made as not to require being ground
In the centre of the outer barrel of the plug swing joint is fixed a small gas tube
conveying the gas to the arm of bracket, over this small gas tube is dropped the
swing plug of the joint. Into the inside of the outer barrel is poured a little oil
which seals the joint gas tight.
I, JOHN WYNN, of St. Mary Street, Cardiff, Auctioneer, House, Land, and Estate
Agent, 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 :-
My invention relates to improvements in or connected with gas brackets, and
consists essentially in constructing the bracket back and swivel socket which holds
the removable plug in such a manner that the plug which is made to correspond
with the socket, will slide in and out and fit without grinding, the joint being sealed
by oil, glycerine, or the like, thus rendering it more suitable for use in or near
bakers' ovens and other places, where the bracket is subject to frequent and sudden
changes of temperature.
According to the present mode of constructing bracket backs, the socket is slightly
tapered and the plug made to fit, and formed into a gastight joint by grinding the
plug in the socket, but the action of the heat, when in use, very soon loosens
the joint and causes a leakage; the object of this invention is to provide a socket
and plug that will be perfectly and permanently gas tight under all conditions,
and thus prevent the loss and annoyance occasioned by leaking joints.
In carrying this invention into effect, the back is made solid and the socket
cylindrical instead of conical, and the gas is conveyed into the plug which supports
the bracket by a tube placed in the centre of the socket or outer barrel, the bottom
of the socket being closed by a cap or other suitable means, whereby an annular
well or chamber is formed, this is partially filled with oil or glycerine, the plug is
made cylindrical to fit over the inner tube and within the socket, thus forming an oil

page_text: seal which prevents the gas from escaping. To prevent the gas when at a high
pressure from foreing its way through the oil and out at the top of the plug, a small
flanged cone is inserted within the plug to form a conical volume of oil which
will resist the pressure..
My invention, and a suitable means of carrying the same into effect, will be more
fully described in connection with the accompanying sheet of drawings, in which
Figure 1 shows the back with a cylindrical socket open at the top and bottom; Fig. 2
is a cap with a tube fitted therein to convey the gas from the outside to the swivel
arm of the bracket; this cap is attached to the bottom of the socket by screwing,
which forms a chamber for the oil; Fig. 3 is an elevation of a cylindrical plug, the
upper part of which fits easily in the socket, the lower part being smaller, to form a
concentric ring of oil round the central tube: Fig. 4 is a general view of the back,
socket, and plug, in position with a piece of bracket pipe inserted; Fig. 5 is a
sectional elevation from the front of the plug, showing the cylindrical plug in the
socket, and the central gas tube within the plug.
The gas may be conveyed to the base of the socket by any suitable means,
but the central tube and cap, as in Fig. 2, appear to be most adapted for the
purpose.
A is a central gas tube inserted in a cap B, the end a is screw-threaded to receive
a union connection or the like attached to the gas supply, the controlling tap may
be fixed in any suitable place: the socket C is screw-threaded at the bottom c to
receive the cap B, the back D is attached to the socket in the usual manner; the top
of the socket is flanged out at E for purposes of strength and also to enable a circular
groove e to be formed in the top; the cylindrical plug F is made considerably smaller
than the socket in which it engages, but the upper part f is enlarged to nearly the full
size of the socket, as shown in Fig. 5; the upper part of the plug is fitted with a
collar G to rest on the top of the socket, and a small circular flange g is made on
the under part to engage in the groove e; within the cylinder F a small conical
flange H is placed at a suitable distance from the end, this forms a guide when the
bracket plug is placed over the central tube on its way to the socket, and helps to
hold the plug and bracket steadily in their position, but it is chiefly employed to
resist and regulate the pressure of the gas, the cone being placed at any required
distance from the end, as the greater the depth of the column of oil below the cone,
the greater will be the resistance to the pressure of the gas:
The other parts of the bracket and back shown in the drawings are of the ordinary
kind, and need no description.
"The various parts being provided and fitted as shewn, their operation is as follows:-
The bracket back D is fixed to the oven or wall, the cap B is screwed to the bottom of the
socket C, and the annular chamber thus formed partly filled with oil or glycerine, the
socket is then ready for the reception of the bracket plug F, when this is inserted,
the cylindrical end passes into the oil, and causes it to rise in the inner and outer
concentric circles; when the gas is turned on, the column of oil in the cone within
the plug will resist the pressure of gas and form an oil seal.
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: In gas bracket backs and plugs for use in or near ovens and other places exposed
to changes of temperature, making the plug to revolve loosely in the socket instead of
being ground in as at present, conveying the gas through the closed base to the top
of the socket by a central tube, around which a hollow cylindrical plug is placed, and
partially filling the annular chamber in the socket with oil, glycerine, or the like to
form a seal to prevent the escape of gas; a plug and socket being thus formed which
is practically unaffected by heat, substantially as described and shewn.
2. The insertion of a conical flange within the herein described cylindrical plug at
any required distance from the end, to resist and regulate the pressure of gas on the
oil in the plug, substantially as set forth.
"

page_text: 3. The provision of a circular flange on the collar of the plug to engage in a
corresponding groove on the top of the socket, to form, in combination with the
conical flange in the plug, a bearing and guide for the bracket and plug to rotate
firmly and steadily in the socket, without any undue strain on any of the parts,
substantially as described and shown in the drawings.
4. The construction of gas bracket supports for use in ovens and the like, with
removable non-ground-in plugs and sockets, the plugs being hollow to surround central
gas tubes, the sockets closed at the base to form chambers to contain a supply of oil
or glycerine to seal the plugs and prevent the gas escaping, substantially as and for
the purposes herein described and illustrated in the drawings.
J. G. WESTLAKE,
Applicant's Agent, 2, John Street, Bristol.
J. G. WESTLAKE,
Applicant's Agent, 2, John Street, Bristol.