Year: 1899

page_text: Date of Application, 18th Jan., 1899
Complete Specification Left 16th Oct 1899 Accepted 18th Nov. 1899
карточещение
We, JOHN VICARS the Elder, THOMAS VICARS, and JOHN VICARS the Younger,
all of 56. Seel Street, Liverpool, in the County of Lancaster, Engineers, do hereby
declare the nature of this invention to be as follows:-
-
This invention relates to bakers ovens provided with flues having dampers by
which dampers the passage of the products of combustion through the flues can
be regulated. It has been found in practice that dampers as hitherto fitted are
very liable to get warped and cracked or set fast by reason of the heat to which
they are exposed in the flues, and when so set fast or cracked there has been great
difficulty in removing and replacing them.
Now the object of our invention is to so arrange the flues and dampers that such
dampers shall not be liable to be either warped or set fast and also when desired
they can be removed and replaced with ease.
For this purpose we arrange the flues at the part where the dampers are
situated in a vertical or nearly vertical direction and we arrange the dampers
so that they are free to slide horizontally or nearly horizontally on rests or guides.
The dampers are free to expand or contract in any direction. Chambers are
provided into which the dampers are withdrawn when it is desired to open a
passage through the flues and such chambers are provided with doors externally
through which the said dampers can be easily removed or replaced or inspected
when desired.
We prefer to make the vertical portion of the flues where the dampers are
situated to lead from a horizontal chamber where dust &c. from the flues may
collect, such chamber having an external door for cleaning.
Dated this Savontoonth day of January 1899
We, JOHN VICARS the Elder, THOMAS VICARS, and JOHN VICARS the Younger,
all of 56, Seel Street, Liverpool, in the County of Lancaster, Engineers, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement, reference being had to the accompanying drawings:-
This invention relates to bakers ovens provided with flues having dampers by

page_text: which dampers the passage of the products of combustion through the flues can
be regulated. It has been found in practice that dampers as hitherto fitted are
very liable to get warped and cracked or set fast by reason of the heat to which
they are exposed in the flues, and when so set fast or cracked there has been great
difficulty in removing and replacing them.
Now the object of our invention is to so arrange the flues and dampers that such
dampers shall not be liable to be either warped or set fast and also when desired
they can be removed and replaced with ease.
For this purpose we arrange the flues, at the part where the dampers are
situated, in a vertical or nearly vertical direction and we arrange the dampers
so that they are free to slide horizontally or nearly horizontally on rests or guides.
The dampers are free to expand or contract in any direction. Chambers are
provided into which the dampers are withdrawn when it is desired to open a
jassage through the flues and such chambers are provided with doors externally
through which the said dampers can be easily removed or replaced or inspected
when desired.
We prefer to make the vertical portion of the flues where the dampers are
situated to lead from a horizontal chamber where dust &c. from the flues may
collect, such chamber having an external door for cleaning.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 is a longitudinal section and Fig. 2 is a horizontal section at the line A A
on Fig. 1 of so much of an oven as is necessary to illustrate our invention.
a is the
interior of the oven into which the substance to be baked is placed in any usual
way, are the heating flues above the oven, e are the heating flues below the
oven. The flues b and c lead downwards into horizontal chambers d which are
provided with doors e through which any dust &c. collected in the chambers d
may be removed f are flues leading vertically or nearly so from the chambers d
to the exit flues or spaces g leading to the chimney, are dampers resting freely
on the guides or supports i so that such dampers can expand without any risk
of jamming or cracking, are handles for moving the dampers horizontally or
nearly so for regulating the opening of the flues t, are chambers into which
the dampers are withdrawn when it is desired to open the passage through the
flues so that such dampers are but little exposed to the heat of the products
of combustion. are doors to the chambers k through which the dampers may be
easily removed or inspected.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is-
First. The combination with bakers ovens of flues arranged vertically or nearly
so, dampers resting freely on guides or supports and movable horizontally,
chambers into which the dampers may be withdrawn, and doors to the chambers,
substantially as and for the purposes set forth.
Second. The combination of a horizontal dust &c. collecting chamber, flues
leading vertically or nearly so from the chamber, dampers resting freely on
guides or supports and movable horizontally, chambers into which the dampers
may be withdrawn, and doors to the chambers, substantially as and for the
purposes set forth.
Dated this Fourteenth day of October 1899
W. B. JOHNSON,
4, Clayton Square, Liverpool,
Agent.