Improvements in Apparatus for Steaming or " Proving" Con- fectionery, Breadstuffs, or the like, previous to Baking.
Year: 1897

page_text: Date of Application, 19th Oct., 1897
Complete Specification Left, 13th July, 1898-Accepted, 17th Sept., 1898
Date of Application, TULI OUL, 1007
Complete Specification Left, 13th July, 1898-Accepted, 17th Sept., 1898
ODATIOTON LT
απατήΤΑΙΑ ΠΟΝΤ
THAT TË
Improvements in Apparatus for Steaming or
"
Proving" Con-
fectionery, Breadstuffs, or the like, previous to Baking.
I, THOMAS HENRY TONGE, of Broad Street, Pendleton, in the County of
Lancaster, Bakers' Engineer, do hereby declare the nature of this invention
to be as follows:-
In the ordinary steaming chambers the articles to be "proved" previous to
baking have been placed on tins or shelves which have reached across the cham-
ber from the back to front the ends only being open to receive the steam
arising from the copper steaming pan or dish placed in the bottom of said steam-
ing chambers. This method has been found objectionable for the following
reasons: The hottest and driest steam has impinged on the lowest row of tins
making the articles on same dry instead of steaming them, whilst the articles
on the rows above have not received sufficient treatment. Thus the shelves
or tins have had to be constantly changed about in chamber to ensure of each
row getting equally treated by the steaming. My present improvements over-
come these objections and consists in constructing the frame of the steaming
chamber in such a manner that the steam arising from the copper steam pan or
dish in the lower part of the chamber first comes in contact with a protector
board of suitable thickness (preferably about 1/7). This protector board is
prevented from coming in contact with the back of steaming chamber by means
of two strips of timber square in section which are secured to the back of said
chamber. The two strips of timber also serve to prevent the tins or shelves
being pushed against the back of chamber thus allowing a clear space or opening
at back and about the same at front, when the chamber doors are closed. The
sides are constructed in the ordinary manner for carrying the tins or shelves
sufficient space being allowed for the steam to rise to all the rows.
The pro-
tector board previously mentioned prevents the dry heat from the copper steam
pan drying the bottom row and also serves to distribute the steam equally
throughout all the rows or shelves in the steaming chamber. Any suitable
burner may be used for heating the copper steaming dish or pan or the proving
chamber may be supplied with steam from a boiler or any other source thus
doing away with the burner and copper steaming dish. Ventilation is allowed
for by means of one or more ordinary hit and miss ventilators placed one in the
top of steaming chamber and one or more in the lower portion where the copper
steaming dish and burner are situated. Suitable gas tubing, taps, and connec-
tions are also provided.
100%
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents.

page_text: 66
Improvements in Apparatus for Steaming or Proving" Con-
fectionery, Breadstuffs, or the like, previous to Baking.
I, THOMAS HENRY TONGE, of Broad Street, Pendleton, in the County of
Lancaster, Bakers' Engineer, 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:-
Bakers' provers or steaming apparatus for "proving" dough prior to being
placed in the oven for baking have hitherto been constructed with space at the
ends of the tins only through which the steam passes to the articles of dough and
so that the lower tin receives directly a greater amount of heat than those that
are placed at a higher level.
This construction has been found objectionable for the following reasons; -
The hottest and driest steam impinges on the lowest row of tins making the
articles on same dry instead of steaming them whilst the articles on the rows
above have not received sufficient treatment, and the steam acting upon the upper
tins of dough has been cooler and wetter causing injury to the dough. This
has necessitated the constant changing of the tins or shelves upon which the
articles of dough are placed in order to ensure of each row receiving equal
treatment or steaming.
My present improvement overcome these objections and consist in construct-
ing the frame of the steam chamber in such a manner that the steam arising
from the copper steam pan or dish in the lower part of the chamber first comes
in contact with a protector board of suitable thickness (preferably about 1")
and then rises through spaces provided at the four sides thereof and spreads
over the dough in the several tins more evenly than has hitherto been possible.
It will be fully described with reference to the accompanying drawings in
which a double prover is shown but it is to be understood as equally applicable
to a single prover.
Fig. 1. Perspective view.
Fig. 2. Longitudinal sectional elevation.
Fig. 3. Transverse sectional elevation.
Fig. 4. Sectional plan.
The apparatus is constructed with an outer casing A, preferably of wood, of
the ordinary shape or form to receive or contain the tins B in a series of super-
imposed layers with a space between each by which the steam has access to the
articles of dough C under treatment. And with a copper steaming pan D heated
by a gas flame from a burner E in the usual way.
Above the steaming pan D I place a board or shelf F to protect the lower
tin B from the direct action of the steam and heat of the burner. This board
is of such a size and so placed that there is a space between each edge and the
casing A through which the steam can pass upwards into the interior of the
prover.
The protector board F is preferably made of timber of about 14 or 1½ inches
in thickness. It is fitted into position and prevented coming into contact with
the back of the steaming chamber or prover by means of the two upright
rectangular pieces of timber G. The upright timbers G also serve to prevent
the tins or shelves B being pushed against the back of the chamber thus main-
taining a clear space or opening a at the back and a space a of equal area at
the front when the doors are shut through which the steam rises into the interior
of the prover.

page_text: The sides are constructed in the usual way formed with a number of laths or
bars H set at intervals with a space h between thus forming a space a³ at each
end of the tins extending from top to bottom through which the steam rises
and enters the prover over the tins B through the spaces or apertures h. A num-
ber of battons K are placed at intervals upon which the tins B can be slid in and
out as required and by which they are supported during the steaming operation.
The protector board F prevents the heat from the steaming pan D. and
burner E acting direct upon and drying the dough upon the bottom tin B and
causes the steam to distribute equally up the several spaces or passages a a¹ a²
and over the several rows of tins in the steaming chamber or prover.
The burner E for heating the steaming pan D may be of any suitable form
to burn gas or the proving chamber may be supplied with steam from a boiler
or any other source thus doing away with the burner and copper steaming dish.
One or more ordinary hit and miss ventilators L are placed below the protector
board F. for the admission of air to regulate the temperature and moisture of
Suit-
the prover, and the ventilator M is placed at the top to draw off the steam.
able gas supply pipes N are fitted to the burner E.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
:—
1. In an apparatus or prover for steaming or proving articles of dough the use
or combination of a protector board placed above the steaming pan or steam
inlet forming a chamber below with spaces or passages at the edges to direct
the steam upwards to the spaces at the sides and ends of the tins and to protect
the lower tin from the direct action of the heat of the burner and steam, sub-
stantially as described.
2. A steaming apparatus or prover for articles of confectionery bread or the
like constructed and arranged substantially as described with reference to the
accompanying drawings.
Th
dor of T1, 1908
WM. P. THOMPSON & Co.,
Manchester, Liverpool & London,
Patent Agents.