Improvements in Gas Ovens and Ranges.
Year: 1891

page_text: Date of Application, 17th Aug., 1891-Accepted, 26th Sept., 1891
COMPLETE SPECIFICATION.
Improvements in Gas Ovens and Ranges.
We, THOMAS FLETCHER and ALFRED CLARE both of Thynne Street
Warrington in the County of Lancaster, Manufacturers of Gas Apparatus, 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:-
When gas ovens and ranges have been in use for some time and particularly
when they have been in use on hire they are frequently allowed to become so dirty
that it is necessary to take them completely to pieces in order to clean them
effectively. This is an operation which involves a considerable loss of time and
expense and which it is the object of this invention to prevent.
For the purpose of our invention we construct and arrange within the gas oven
or range an easily removable lining of metal, preferably iron or steel, and preferably
also enamelled on one or both sides, which may be removed and cleansed and be
replaced with facility.
We will more particularly describe our said invention with reference to the
accompanying drawings, the various figures of which will hereinafter be separately
described. In each of the figures similar parts when represented, are indicated by
similar letters of reference.
The lining plates are constructed to cover the sides, back, and top of the oven,
and the inner surface of the door, but we have not represented the door in any of
the figures of the drawings as the method of attaching the plate to the door will
be sufficiently obvious.
A is the top of the oven; BB are the sides, D D are the side lining plates,
E is the top lining plate, and FF are brackets formed or secured on the side
lining plates for the support of the oven shelves. The oven represented in the
drawings is a separate oven, but it will be understood that these improvements are
applicable in a precisely similar manner to the ovens which form part of gas
cooking ranges.
In the arrangement represented by Figure 1 the plates are interlocking and are
inserted and removed through the doorway of the oven. The back plate G has
two longitudinal beads H H formed near its longer edges and is supported at its
bottom by the clamps II. The side plates DD may be supported at the bottom
by similar clamps II or, as represented by Figure 3, they may be supported by
the burners KK which in this case may require to be removed before the side
plates can be taken from the oven. The side and back plates having been inserted
in their positions and their lower ends having been secured in the clamps I I, the
top plate may be inserted through the slots L L (Figure 7) formed in the front of
This plate will pass between the side plates DD and abut against the
back plate G, and the side plates will have their inner edges in the recesses formned
by the beads H H on the back plate. The whole arrangement of the plates is
consequently interlocking and self-supporting. Ventilation of the oven may be
secured in this and other cases by forming openings through the top plate and if
desired also through the upper parts of the side and back plates.
the oven.
Figure 2 is sectional plan of Figure 1 and further illustrates the description
already given herein.
Figures 3 and 4 represent in sectional elevation and plan respectively, a modified
construction and arrangement in which the side and back plates are held in
vertical slots M M formed in the inner walls of the oven. The side plates may be
supported by clamps such as II (Figures 1 and 2) or by the burners K K. The
back plate also may be supported by similar clamps or by a strip cast or formed
D
1م

page_text: on the inner wall of the oven as indicated at N. The top plate may be of larger
area than the area enclosed by the side and back plates and be placed in the oven
before these plates so as to be held thereby, or it may be similarly constructed and
arranged to the top plate illustrated by Figure 1. The lining plates in this case
also as in the case illustrated by Figures 1 and 2, may be inserted when the oven is
laid upon its side,
In the arrangement shewn by Figure 5 the lining plates are supported by button
headed studs which pass through the enlarged parts of the keyholes P P formed in
the plates; the plates being then lowered, the button heads come in front of the
slots of the keyholes and are thereby securely held.
Figure 6 illustrates a further modification in which the lining plates are held by
turn buttons. These turn buttons may either be arranged to pass through holes
formed in the plates as illustrated or they may be arranged at or near the edges
of the plates. Alternatively the lining plates may be secured to the interior
surfaces of the oven by means of screws, but this is an arrangement which we do
not approve because of the time occupied in removing and replacing the lining
plates.
Instead of constructing and arranging the linings in any one case according to
the methods illustrated by either Figure 1 or by Figure 3 for example, we may
combine the various methods, and instead also of having the linings in separate
sheets separately inserted, we may connect the several side back and top plates or
any contiguous two or three of them together by bending over the edges of some
of the plates and flanging the edges of others and inserting the flanged edges into
the turned over edges, or by hinging or similarly connecting the plates together;
but in all cases we prefer to employ separate plates.
It will be understood that in all cases in which our removable linings are
employed the brackets for carrying the shelves are not as usual secured or cast
upon the side walls of the oven but are secured upon the side lining plates.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is,
In gas ovens and the ovens of gas ranges, removable linings, constructed and
arranged substantially as and for the purpose hereinbefore described and as
illustrated by the accompanying drawings.
Dated this 14th day of August A.D. 1891.
13...
WILLIAM E. HEYS,
Agent for the Applicants.