Year: 1895

page_text: Date of Application, 17th June, 1895-Accepted, 20th July, 1895
Fig. 4 a back view of same,
Fig. 5 is a cross section on line y-y of Fig. 1,
Fig. 6 is a detail view showing the trough and its connections in section.
The oven consists of a body closed at all sides and is shown in the accompanying
drawing, by way of example, in the shape of an ellipse; it will, however, be
evident that the oven may be made in any desired shape to meet the various
requirements.
may
Said body is composed of two rings a, a preferably U-like in cross section and
arranged at both ends of the oven, and of the smooth outer sheet metal casing or
mantle and the inner corrugated sheet metal casing c to which casings the
rings a, a¹ are secured by rivets or in other suitable manner; these rings a, a¹
also be connected to each other by bolts or steel-tubes arranged between the
casings b and c. The space between the casings b and c is filled through the holes d¹
with suitable material-for instance, infusorial earth, asbestos, slag wool, spuu
glass-for preventing the rapid radiation of heat.
The object of constructing the oven in the manner above-described is to allow
of an expansion and contraction of the parts, arising from the unequal heating and
cooling of the casings b and c and in consequence of the latter being made of
corrugated sheet metal, and secured at the ends of said casings; such expansion
and contraction, however, does not cause the parts of the oven to spring, split or to
be otherwise injured.
The lower part of the oven is provided with a ribbed tube e acting as heating
body. It is preferable to extend the front or feed end e¹ of the tube e and to
provide same with a fire-door f and also a door g through which latter the ashes
may be removed; the back end e² is connected to the chimney h, preferably
provided with a damper and whose upper part h³ may be made to turn on hinges
until it rests on the fork i as shown in Fig. 1.

page_text: The trough k for receiving the material to be dried baked, or roasted, is arranged
above the heating body e and is preferably composed of two sheet-metal walls k', k²
between which insulating material is placed. In order that this trough k may
be readily removed from the oven, it is provided with angular supports 1 (Fig. 6)
in which supports the pivots of rollers mi are mounted, such rollers m running in the
C-shaped rails n secured to the brackets or supports o of the oven. A door ris
.also made in the front wall p of the oven, through which door the trough k may be
inserted or removed as desired. The back wall may be provided with two
receptacles arranged on both sides of the chimney h, the one receptacle s holding
water heated by the heat of the oven and being provided with a tap u, the other t
serving as tool box or for any other purpose.
The brackets underneath the oven allow of same being readily secured to the
framework of a vehicle, when the oven may be used as transportable baking oven
for field and military purposes.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
:-
1. An oven for drying, baking, roasting and like purposes, the stationary or
transportable body of which is composed of two casings or mantles (b, c) connected
by rings (a, a¹) riveted or otherwise secured to the ends of said casings, bad con-
ducting material being placed between the smooth outer casing (b) and the
corrugated inner casing (c), substantially as described and shown in the drawing.
2. The arrangement and construction of the oven for drying, baking, roasting
and like purposes, substantially as shown and described in the drawings.
Dated 17th June 1895.
GEO.
DOWNING,
8 Quality Court, London, W.C., Agent.