IMPROVEMENTS IN OVEN FURNACE, AND OTHER DOOR AND GATE FASTENINGS to be as follows
Year: 1885

page_text: I, HENRY CHARLES TURNER of 10 Blucher Road, Camberwell, in the County of
Surrey, Gas Engineer do hereby declare the nature of my said invention for
"IMPROVEMENTS IN OVEN FURNACE, AND OTHER DOOR AND GATE FASTENINGS
to be as follows :—
"
This invention has for its object the construction of latch fastenings specially
adapted for use in connection with the doors of gas stoves, or other ovens or
furnaces, doors or gates, so as to prevent the undue jamming of the latch when the
door is fastened and the adjacent parts become heated. It is also applicable to the
fastening of doors for other purposes.
The invention consists in rivetting or fixing the latch to the door, which is
contrary to the usual practice, and in inserting in the upper part of the incline of
the catch a roller capable of revolving upon a pin that passes through it. The
result is that the closing of the door is effected by simply pushing it home, which
is done, quite easily and with but little friction, and when the latch has passed
over the roller and fallen slightly below its top surface, any pressure due to the
expansion of the door caused by its being heated will tend to force the door
against the frame on one side, and the latch against the roller of the catch on the
other. When it is necessary to open the door, a simple pull upon the handle of
the door will cause the latch to pass over the roller and become free, all undue
jamming being thus avoided.
Such fastenings are well adapted for many ordinary doors and gates.

page_text: Improvements in Oven, Furnace, and other Door and Gate
•
Fastenings.
I, HENRY CHARLES TURNER of 10 Blucher Road Camberwell, in the County of
Surrey, Gas Engineer, do hereby declare the nature of my invention for "IMPROVE-
MENTS IN OVEN FURNACE, AND OTHER DOOR AND GATE FASTENINGS," and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement, reference being had to the accompanying
drawings and to the letters and figures marked thereon, that is to say:-
This invention has for its object the construction of latch fastenings specially
adapted for use in connection with the doors of gas stoves or other ovens or
furnaces, doors or grates, so as to prevent the undue jamming of the latch when
the door is fastened and the adjacent parts become heated. It is also applicable to
the fastening of doors for other purposes.
In order that the invention may be easily understood drawings are attached
hereto. Fig. 1 being a front elevation of the full size of an ordinary latch and
catch, Fig. 2 a side elevation of the same, and Fig. 3 a front elevation drawn to
half the previous scale, showing the application to an oven door.
The invention consists in rivetting or fixing the latch A, to the door B, which is
contrary to the usual practice, and in inserting in the upper part of the incline of
the catch C which is fixed to the frame D, a roller E capable of revolving upon a
pin that passes through it. The result is that the closing of the door is effected
by simply pushing it home, which is done quite easily and with but little friction,
and when the latch has passed over the roller and fallen slightly below its top
surface, any pressure due to the expansion of the door caused by its being heated
will tend to force the door against the frame on one side, and the latch against the
roller of the catch on the other. When it is necessary to open the door, a simple
pull upon the handle F of the door will cause the latch to pass over the roller and
become free, all undue jamming being thus avoided.
Such fastenings are well adapted for many ordinary doors and gates.
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
1 claim is,-
The construction of fastenings made with a fixed latch attached to the door and
a roller pivotted to the catch fastened to the door frame, as herein described and
shown on the drawings.