Stoves and furnaces – Stove doors and windows
Patent
1985-11-13
1988-11-15
Scott, Samuel
Stoves and furnaces
Stove doors and windows
126194, 126 19R, 126337R, 126273R, 49371, F23M 700
Patent
active
047841117
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention concerns a type of recycle hot air oven such as those used by bakers, pastry-cooks, pork-butchers and restaurant owners for cooking food products.
In the baking of bread using the Roman oven principle, the dough is laid bare on a hot plate. The great proportion of present day ovens still use this principle, with improvements focusing primarily on continuous heating and on the ease of putting bread into the oven and taking it out of the oven.
With the exception of trolley type ovens, the structures of bread ovens have become only slightly lighter. Their bulkiness on the ground has not been reduced and their immobility is usually by anchoring to the ground.
SUMMARY OF THE INVENTION
A first object of the invention is to improve these three attributes, lightweight, bulkiness on the ground, and mobility while keeping the traditional baking advantages and by introducing decided advantages on handling the transfer of bread.
In known superposed hot plate ovens, the front face has superposed longitudinal openings which are closed by doors at different levels, the first plate generally being at 70 to 80 cm above ground and the height of the doors being of the order of 26 cm. As it is difficult and almost impossible to put bread into and take out of an oven at more than 1.80 m above ground, it is practically impossible to provide more than three doors. Furthermore, it is difficult to clean the inside and the back of the oven because there is a lack of accessibility. Finally, the size and nature of the food products are limited, by excluding the products having a height greater than one door. The height of products which are very close to that of one door, experience difficulties on removal when there is a rising of dough due to baking, which is a perfectly random event.
Another object of the present invention consists in providing an oven having an inside which is easily accessible, and which allows the baking of large size products.
In accordance with a characteristic of the invention, a principal door closed by a set of superposed secondary folding doors is provided as an opening to put bread into the oven. The lower edge of a secondary folding door covers the upper edge of a secondary folding door which is immediately below it, the closing being in a sufficiently tight manner.
In accordance with another characteristic, the perimeter of the opening to put bread into the oven is made up by the fold of a principal door pivoting on two vertical axes.
In accordance with another characteristic, the secondary doors can pivot 180.degree. about their axes, these being attached on the fold of the principal door.
In accordance with another characteristic, the axes of the secondary doors are placed at a high position for a secondary door and at a low position for the closest secondary door, the secondary opening thus being doubled.
In accordance with another characteristic of the invention, a free space is provided between the edge of each plate and the concave back of the secondary door.
In accordance with another characteristic, a gap is provided between the front edge of each plate and interior face of the principal door.
In accordance with another characteristic, the plates are movable and are made of sheet metal having 3 mm holes on 40 to 60 % of its surface.
In accordance with another characteristic, a hook-up bar for an apparatus to put bread into the oven is installed along the thickness of the principal door mounts, the bar sweeping the entire opening of the principal door.
In accordance with another characteristic, upwardly open U-shaped stirrups are put at various positions on the secondary door, which is bound to the principal door.
BRIEF DESCRIPTION OF THE DRAWINGS
The characteristics of the above-mentioned invention, as well as others, will become clearer upon reading the description of an embodiment, the description being made in relation to the attached drawings, among which:
FIG. 1 is a front view of the principal door of an oven in accordance with the
REFERENCES:
patent: 1944061 (1934-01-01), Beverly
patent: 2130617 (1938-09-01), Dockham
patent: 2661507 (1953-12-01), South
patent: 4355570 (1982-10-01), Martin et al.
Kamen Noah
Scott Samuel
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