Improvements in or relating to Gas Cocks.
Year: 1889

page_text: Date of Application, 25th June, 1889
Complete Specification Left, 10th Mar., 1890-Accepted, 24th May, 1890
PROVISIONAL SPECIFICATION.
Improvements in or relating to Gas Cocks.
I FREDERICK GEORGE HAMER of Number 19 George Street, Torquay, in the
County of Devon, England, Gas-fitter do hereby declare the nature of this invention
to be as follows:-
An invention whereby the main supply of gas to gas apparatus, is regulated by the
movement of a flap door, the hinge of the flap door being connected to the main
stop-cock in such' manner that the movement of the flap door acts on the stop-cock,
thus, regulating the main supply of gas to the apparatus.
The application thereof is made automatic, inasmuch as, in opening, & closing, the
flap-door, the gas is turned on & off.
COMPLETE SPECIFICATION.
Improvements in or relating to Gas Cocks.
I FREDERICK GEORGE HAMER of Number 19 George Street, Torquay, in the
County of Devon, England, Gas-Fitter do hereby declare the nature of this inven-
tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:-
To a gas-cock, I fit a triple-hinged flap-door, for regulating "automatically "the
main supply of gas to gas apparatus, the gas being turned on to the oven burner by
closing the flap-door, and the gas being turned off from the oven burner by opening
the flap-door, the centre hinge of the flap-door being connected with a pin jointed
lever A to the plug B of the gas-cock which regulates the supply of gas to
the oven burner, and the two outer hinges C of the flap-door being connected to the
apparatus under the oven doorway, one on either side, the flap-door D is made
sufficiently large to cover the whole of the oven-doorway, and is fitted with a handle
(and latch) E at the upper end of it for opening and closing the door, when the
Alap-door is closed it rests in a perpendicular position against the oven, covering the
whole of the oven doorway, and when the flap-door is opened it rests on a plate F
which projects from the apparatus under the oven doorway. One end of the barrel
of the gas-cock G is fitted to the gas-supply-pipe H which runs along the front of
the apparatus under the oven doorway, and the other end of the barrel of the gas-cock
is fitted to an elbow I which is connected to the burner which runs along underneath
the centre of the oven, inside, from front to back. One end of the oven burner
being just under the pilot light inside the oven near the door. The pilot light J is
fitted to the gas-supply-pipe under the oven doorway, the end of the pilot light reaches
into the oven just over the end of the oven burner, the pilot light is kept burning at
all times when the stove is in use for the purpose of lighting the oven burner when
the flap door is closed, the pilot light still remains burning over the end of the oven
burner inside the oven near the door when the flap-door is opened, Fig. 1 is front
elevation, Fig. 2 is longitudinal section, Figs. 3 and 4 are modifications of Figs. 1
and 2 respectively.
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,
1st. An attachment of a triple-hinged flap-door to a gas-cock, for regulating
automatically the supply of gas to gas apparatus, the gas being turned on full to the

page_text: oven burner by closing the flap-door, and the gas being turned off altogether from
the oven burner by opening the flap-door.
2nd. That the contents of the oven cannot be extracted without turning off the gas
from the oven burner, which is done by opening the door, thereby effecting a saving
of gas, especially when fitted to ironing stoves.
3rd. That by placing the pilot light immediately over the end of the burner in the
oven near the door, and by keeping it lighted when the stove is being used, a saving
of labour is effected, and the oven burner is prevented from catching back in the
air chamber.
FREDERICK GEORGE HAMER.