Improvements in Combined Valves or Taps, and Couplings for Gas Fittings.
Year: 1896

page_text: Date of Application, 27th Oct., 1896
Complete Specification Left, 6th May, 1897-Accepted, 10th July, 1897
PROVISIONAL SPECIFICATION.
Improvements in Combined Valves or Taps, and Couplings
for Gas Fittings.
JOHN
HODKINSON, Union Street, Burton on Trent Manager and
THOMAS HODKINSON 86 Alfreton Road, Nottingham Gas Fitter do hereby declare
the nature of this invention to be as follows:-
This invention has for its object the construction of a combined valve or tap and
coupling for gas fittings, by which a burner with its attached connection may be
changed from one supply feed to another, and in which the valve or tap will be
automatically opened or closed upon the insertion or withdrawal of the burner
connection.
According to one arrangement the supply feed piece is fitted with a valve which
is held closed by a spring or its equivalent, and the end of the supply feed piece is
provided with a screw thread or coupling arrangement. The end of the burner
connection is provided with a corresponding thread or coupling arrangement and also
with a projecting piece which opens the valve in the supply feed piece when the
burner connection is placed in position.
In another arrangement a suitable tap is fitted to the supply feed piece and the
burner connection is fitted with means for opening and closing the tap when inserted
and removed from the supply feed piece.
When this invention is applied to gas supply pieces for use in markets and similar
positions there may be added, means for covering the top of the supply feed piece to
keep the same free from objectionable matter and such means may be arranged to
open and close with the insertion and withdrawal of the burner connection.
Dated this 26th day of October 1896.
W. H. POTTER, Wh. Sc.,
Nottingham, Patent Agent.
COMPLETE SPECIFICATION.
Improvements in Combined Valves or Taps, and Couplings
for Gas Fittings.
JOHN
HODKINSON
and
of Union Street Burton on Trent Manager
THOMAS HODKINSON of 26 Alfreton Road Nottingham Gas Fitter 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 improvements in combined gas valves and couplings

page_text: applicable to places or positions where there are fixed supply pipes and it is required
to change the burner and its attached part from one supply to another.
At the present time when a burner with its connected part has to be changed
from one supply pipe to another each supply pipe is fitted with a valve or tap
and the burner portion is connected to the supply by a screw or coupling and after
the connection is made the valve or tap has to be opened.
With this arrangement there is a liability of the valve or tap being left open
when the burner part is removed, and it is necessary to make a gas light joint when
the burner part is coupled to the supply pipe.
Now the object of this invention is the construction of a combined valve and
coupling by which the supply pipe is opened and closed automatically upon the
insertion and withdrawal of the burner part, and by which a gas tight joint is
formed with certainty between the burner part and supply pipe when the former is
inserted in the latter.
According to this invention the supply pipe is provided with a fitting which
comprises a part screwed or shaped to form part of the coupling, a coned part
corresponding to a similar part on the burner part to form the gas tight joint, and
also a valve which is held up to a suitable face by a spring. The end of the burner
pipe is provided with a fitting which is screwed or shaped to form part of a coupling,
and is coned to fit the corresponding parts in the supply pipe fitting. In addition
the burner pipe fitting is arranged to open the valve in the supply pipe
fitting when the two fittings are brought together. When the improved fitting is
used in exposed places such as markets, the tap of the supply pipe fitting is fitted
with a cap or plug.
In the accompanying drawings which illustrate this invention Fig. 1 is a sectional
elevation of an improved valve and coupling according to one arrangement, and
Fig. 2 is a sectional elevation of an improved valve and coupling according to an
alternative arrangement.
a²
In the arrangement shown in Fig. 1 the supply pipe is fitted with a piece made
in two parts a and a' for facility of construction. The part a is provided at b with
screw threads for attaching to the supply pipe, and is also screwed at c for attachment
of the part a. Inside the part a there is a division plate d which is drilled with one
or more holes e for the passage of the gas and also forms a guide for the valve spindle f.
The past a¹ is recessed near the top for a rubber, leather, or similar washer g, and
is screwed at h to receive the screwed part of the part which is attached to the
burner pipe. Below the screw thread h the part a' is bored conical and the part k
correspondingly turned so that the two parts k and when brought
together form a gas tight joint. The lower end of the piece kis
perforated with holes i similarly to the division d, and by altering the number of
these holes the supply of gas may be regulated. The valve n according to this
arrangement consists of a leather or other suitable washer fastened to a plate o on
the spindle f. Between the underside of the plate o and division d there is a
spring so arranged that when the piece k is removed from the piece a¹ the valve n
is forced up to the valve seat 8 and the supply of gas thereby stopped, and the
insertion of the piece k for coupling the burner pipe to the supply pipe forces the
valve away from its seat and allows the gas to pass through the openings l.
The combined valve and coupling shown in Fig. 2 is similar to the valve and
coupling shown in Fig. 1, and the corresponding parts in the two figs. are indicated
by the same reference letters. In Fig. 2 a metal valve t is used and the part a¹
is shaped to form a metal facing at t. This valve t is made to fit the inside of
the piece a¹ and the gas is admitted by grooves t2 cut. in the edge of the valve, this
arrangement affording another means for checking the supply of gas to the burner.
The plate under the valve n in Fig. 1 may be arranged to fit the part al and have
grooves in its edges if desired. Fig. 2 also shows a cap u for covering the top of
the part when the part k has been removed. This cap may be hinged as shown
or fitted to slide, and it may be added to the arrangement shown in Fig. 1.

page_text: Having now particularly described and ascertained the nature of our said
Invention, and in what manner the same is to be performed, we declare that what
we claim is
1. A combined gas valve and coupling in which a valve in the supply pipe part of
the coupling is automatically opened by the insertion of the burner part of the
coupling into the supply part of the coupling, and automatically closes itself on
the separation of the two parts of the coupling substantially as herein described.
2. A combined gas valve and coupling constructed, with or without a cap, as
herein described with reference to Fig. 1 of the accompanying drawings.
3. A combined gas valve and coupling constructed, with or without a cap, as
herein described with reference to Fig. 2 of the accompanying drawings.
Dated this 5th of May 1897.
W. H. POTTER, M.I.M.E.,
Brougham Chambers, Nottingham.