for Use in Bakers' Ovens and the like.
Year: 1885

page_text: for Use in Bakers' Ovens and the like.
I WILLIAM PHILLIPS THOMPSON Fel. Inst. P.A. of the Agency for Foreign
Patent Solicitors 6 Lord Street Liverpool in the County of Lancaster and
323 High Holborn in the County of Middlesex Civil Engineer do hereby declare
the nature of the said invention for AN IMPROVED CLOSING SLIDE AND ILLUMI-
IN BAKERS' OVENS AND THE LIKE
NATING APPLIANCE APPLICABLE FOR USE
(a communication from abroad by Adolf Nestlen of Freudenstadt in the Empire
of Germany, Inventor) to be as follows:-
The present invention has for its object an improved apparatus for lighting
bakers' ovens, by means of a lamp placed outside the oven, and so arranged that
the same lamp can also be utilised for lighting the room in which the oven is: the
mechanism comprises a close fitting slide adapted to the oven aperture which also
may be adapted to close both the firing opening of the oven, and the chimney
opening.
The frame of the slide is cast in one piece; it consists of two longitudinal and
four cross pieces of which one is at top, the second and third above and below the
oven opening and the fourth at bottom All the parts of the frame lie exactly in
the same plane, Upon the frame slides the smooth door plate, In this plate is a
round opening with outwards projecting edge.
Upon this edge is fixed a cast iron ring carrying a glass and attached to its out-
side is a cover or envelope of the lamp, burner with an outer cover or lid serving
as reflector, which can be opened or shut at pleasure.
The four corners of the plate have holes by means of which the said plate is
guided over corresponding projections on the iron frame and fits so exactly thereon
that it closes the oven opening as tight as possible.
.
In order to raise the plate with the envelope aforesaid attached thereto, bent
handles with wooden knobs are fixed on it.
A holder attached to the iron frame by means of an iron bar and angle irons
supports the lamp.

page_text: If it should be necessary during the time that the oven requires to be lighted, to
have a temporary light in the kitchen, as well, the outer lid of the envelope is
opened. When however the lighting of the kitchen is unnecessary, the plate is
pushed up by means of the handles. If the plate (to which check springs may be
fixed) will not remain in the upper position it may be held firm by a screw. The
opening in the oven is completely closed when the plate is pushed up, and the lamp
when released from the envelope now serves to light the kitchen.
The fixing aperture of the oven may be closed by a similar frame and sliding
door, and this door may be balanced by counterweights in the usual way.
By this invention the oven both during the time in which the illumination of
its interior is required as well as at other times is kept continuously closed to the
air whereby not only is labour economised but a good and uniform baking is
attained with considerable economy of heat and fuel.
Dated this fifteenth day of August 1885.

page_text: An Improved Closing Slide and Illuminating. Appliance Applicable
:
for Use in Bakers' Ovens and the like.
I; WILLIAM PHILLIPS THOMPSON, Fel. Inst: P.A.. of the Agency for Foreign
Patent Solicitors; 6- Lord Street, Liverpool; in the County of Lancaster; and
323 High Holborn, in the County of Middlesex, Civil Engineer, do hereby declare
the nature of this invention (a communication from abroad by Adolf Nestlen of
Freudenstadt, in the Empire of Germany, Inventor) and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement:---
The present. invention has for its object an improved apparatus for lighting
bakers' ovens by means of a lamp placed outside the oven, and so arranged that
the same lamp can also be utilized for lighting the room in which the oven is; the
mechanism comprises a close fitting slide adapted to the oven aperture, which also
may. be adapted to close. both the firing opening of the oven, and the chimney
opening.*
Referring to the accompanying drawing:-
o
Figure 1. shows the lamp fixed in front of the oven viewed from behind from the
bake house, and Figure 2 the same position in front of the oven, but seen from the
side in vertical section. In Figure 2 the upper space A and the lower space C lie
between the iron frame in the masonry of the oven, and B represents the opening
into the oven.
The frame fff is cast in one piece; it consists of two longitudinal and four
cross pieces, of which one is at top, the second and third above and below the oven
opening B, and the fourth at bottom, as shown in Figures 1, 2, 3 and 4. All the
parts of the frame lie exactly in the same plane. Upon the frame ƒ ƒ ƒ slides the
smooth plate D. In this plate D is a round opening with outward projecting edge.
Upon this edge is fixed a cast iron ring carrying a glass g and secured on the
envelope of the lamp burner H with outer cover or lid G serving as reflector,
which can be opened or shut at pleasure. The four corners of the plate D have
holes a a aa by means of which the said plate D is guided over the projections e e
on the iron frame and fits so exactly upon the frame f.ff that it closes the opening
in the oven at B as tight as possible.
In order to raise the plate D with the envelope H attached thereto, bent bandles
with wooden knobs c are fixed on it Figure I. 1, 3 and 5.
A holder E attached to the iron frame by means of an iron bar d d and the angle
irons d' d' support the oil vessel F of semi cylindrical shape.
If it should be necessary during the time that the oven requires to be lighted to
have a temporary light in the bake house as well, the lid G of the envelope H is
opened. When however the lighting of the oven is no longer necessary the plate D
is pushed up by means of the handles c as shown in Figures 3 and 4. If the
plate D (to which check springs may be fixed), will not remain in the upper position
it may be held firm by a screw b. The opening in the oven at B is completely
closed when the plate is pushed up, and the lamp released from the envelope H now
serves to light the bake house.

page_text: Figure 5 shows the closing of the firing aperture of the baker's oven by means of
the door D sliding on the frame fff, which door is moved through the holes a a a,
and over the bars e, and this door may be balanced by counterweights in the
usual way.
By this invention the great advantage is secured that the oven both during the
time in which the illumination of its interior is required as well as at other times
is kept continuously closed to the air, whereby not only is labour economised,
but a good and uniform baking is attained with considerable economy of heat
and fuel.
Having now particularly described. and ascertained the nature of my said
invention, and in what manner the same is to be performed, as communicated to
me by my foreign correspondent, I declare that what I claim is:-
1st. In illuminating contrivances for bakers' ovens and the like, the combination
of parts consisting of a lamp fixed in front of the oven enclosed within an.
envelope H provided bebind with the movable lid G polished to serve as a reflector,
substantially as described and shown in the accompanying drawings.
2nd. The combination of parts consisting essentially of a flat plate D sliding in
a frame fff to which the lamp envelope H with the glass g is attached, and
which plate completely closes the oven aperture when either at its highest or lowest
position, substantially as described and shown in the drawings.
3rd. The combination of parts forming the improved sliding door for closing the
fire hole, and other openings of a baker's oven, substantially as described and shown
in the accompanying drawings.