Year: 1888

page_text: I, MARGARET EMMA OWEN, of Lamborne, in the County of Berks, 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 :-
In
open fire ranges, as they are usually constructed, the oven compartment is entirely.
cut off from the fire and is heated by hot products of combustion from the fire passing
through flues surrounding it.
According to my invention the side of the oven next the fire is made of an open
grating with strong bars sufficiently close together to prevent cinders or much ash
from passing through them to the oven. The circular plate or grid inside the oven
on which the food rests while cooking is carried by a spindle supported in a step
bearing under the oven, the plate or grid being made to revolve slowly by suitable
clockwork mechanism. By this means it will be seen that the food is subjected to a
roasting instead of a baking action.
The accompanying drawing shews a cooking range or stove constructed according
to my above described invention. Fig. 1 shews a sectional elevation and Fig. 2 a
sectional plan. The oven A has its side next the fire grate B, forined with bars C
sufficiently close together to prevent the fuel from falling through. The plate D
within the oven is circular and is carried by a spindle E passing through the bottom
of the oven and supported on a block by preference of glass or steel in a step
bearing F. The circumference of the plate D is provided with teeth with which gears
a worm G on a spindle passing through the front of the oven, at the side of the door
and provided at its outer end with a toothed pinion H which is driven by any suitable
clockwork mechanism I such as the common "Veruvolver" used to turn the spit in
Dutch ovens.
In order to regulate the heat thrown into the oven, as also to direct the same more
into the upper or into the lower parts, I provide two or more horizontal sliding
dampers JJ situated one above the other on the inner side of the bars C, so that on
entirely drawing out both dampers, the full heat of the fire is thrown into the oven;
on closing both, the direct communication is cut off, and the oven can be made to act
IP 7

page_text: *
as an ordinary one, while on leaving the one or the other open, the direct heat is
restricted in a corresponding manner. In addition to or in lieu of the above dampers
may be employed a sliding hit-and-miss" valve, as indicated at K by moving which
in one direction or the other, the spaces between the bars Care more or less closed or
opened, thereby regulating the direct heat transmitted through them.
My above described invention can be applied as well to close fire ranges, or
kitcheners, as to open fire ranges, and existing ranges may have the invention adapted
to them.
In addition to the above mentioned great advantage of obtaining a roasting action
in place of a baking action, my invention affords the further advantages of effecting
a saving of fuel and time in cooking, and of keeping the food constantly turned so as
to be uniformly acted upon without requiring the oven to be opened.
It will be evident that the arrangement of the bars C to the oven can be applied
without that for rotating the plate D and vice-versa.
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. Constructing the ovens of cooking ranges or stoves with the side thereof next
the fire formed as an open grating, substantially as herein described.
2. In combination with the open grating referred to in the preceding claim, the use
of sliding dampers whereby the direct communication between the fire and the oven
may be either entirely or partially cut off; substantially as herein described.
3. The use in ovens of cooking ranges or stoves, of a plate carrying the food which
is mounted on a spindle and is rotated by clockwork mechanism outside the oven
which drives the plate by means of a spindle passing through the oven and having its
inner end provided with a worm, gearing with a toothed ring on the plate, while
its inner end carries a pinion gearing with the clockwork, substantially as herein
described.
4. In cooking ranges or stoves, the use of an oven having its side next the fire
formed with open grate bars, and having a plate carrying the food rotated by clock-
work mechanism so as to subject all parts of the food to the direct action of the fire
heat, substantially as herein described.
Dated this 16th day of August 1888.
ABEL & IMRAY,
Agents for the Applicant.