Improvements in Dough Brakes or Pastry Rolling Machines.
Year: 1896

page_text: Date of Application, 20th Jan., 1896
Complete Specification Left, 20th Oct:, 1896-Accepted, 20th Jan., 1897
PROVISIONAL SPECIFICATION.
Improvements in Dough Brakes or Pastry Rolling Machines.
I WILLEY PRATT of 21 Milton Place, Halifax in the County of York,
Mechanical Engineer, do hereby declare the nature of my invention to be as
follows:-
My invention relates to improvements in dough brakes or pastry rolling
machines and has for its object to roll the dough into sheets of any desired
thickness. For this purpose the upper roller of the machines is mounted at each
end in bearings carried by the framing and the lower roller is supported by
blocks or bearings capable of vertical adjustment within slots or openings formed.
in the said framing. Underneath this latter roller is. a shaft running parallel.
with the roller and supported at each end by the framing.
This shaft is provided with two cams or scrolls underneath the adjustable blocks
or bearings of the latter roller the said blocks or bearings being formed with
projections bearing upon or engaging with the said cams or scrolls.
In order to adjust the lower roller according to the thickness of the sheet of
dough to be rolled the said shaft is turned by means of a hand wheel at one end
thus causing the cams or scrolls to raise or lower the said roller nearer to or further
from the upper roller the cams or scrolls always maintaining the lower roller in
an even or parallel position with the upper roller and thus causing the sheet of
dough to be rolled to an even thickness throughout.
I prefer to form the said rollers hollow and to heat them internally by means
of gas, spirit or other suitable agents but they may be made solid and heated
externally by any suitable means.
I may in some cases arrange the apparatus so as to operate the upper instead
of the lower roller by means of the shifting cams or scrolls as aforesaid.
As my improvements are capable of some slight modification without departing
from the principle of the invention I do not restrict myself to the precise form or
placement of the parts thereof.
Dated this 20th day of January 1895.
J. B. FLEURET,
5 Hatton Garden, London, Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Dough Brakes or Pastry Rolling Machines.
I WILLEY PRATT of 21 Milton Place, Halifax in the County of Yorkshire,
Gentleman, 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 :-
This invention relates to improvements in dough brakes or pastry-rolling
machines and has for its object to roll the dough into sheets of any desired.
thickness.
For this purpose the upper roller of the machine is mounted at each end in

page_text: bearings carried by the framing and the lower roller is supported by blocks or
bearings capable of vertical adjustment within slot or openings formed in the said
framing. Underneath this latter roller is a shaft running parallel with the roller
and supported at each end by the framing. This shaft is provided with two
cams or scrolls underneath the adjustable blocks or bearings of the lower roller,
the said blocks or bearings being formed with projections bearing upon or engaging
with the said cams or scrolls.
In order to adjust the lower roller according to the thickness of the sheet of
dough to be rolled, the said shaft is turned by means of a hand wheel at one end
thus causing the cams or scrolls to raise or lower the said roller nearer to or
further from the upper roller, the cams or scrolls always maintaining the lower
roller in an even or parallel position with the upper roller and thus rolling the
sheet of dough of an even thickness throughout.:
I prefer to form the said rollers hollow and to heat them internally by means
of gas, spirit or other suitable agents, but they may be made solid and heated
externally if desired.
Instead of arranging the upper roller in fixed bearings and the lower roller
adjustable I may make the upper roller adjustable and the lower roller fixed
which arrangement I have shown in the accompanying sheet of drawings which I
will now proceed to describe.
Figure (1) is a side elevation of one of my improved machines Figure (2) an
end elevation of the same and Figure (3) a plan Figures (4, 5, 6, and 7) are
details..
a is the frame of the machine 6 the top roller and c the bottom roller. The
journal boxes 6 of the top roller are formed or provided with stirrups & extending
downwards on each side of the journals of the roller c'carried by bearings in
the frame a and the said stirrups are formed with or joined together at their lower
ends by the cross-piece d as shown in Figure (4) which is a view partley.in
section on the line x of Figures 2 & 5.
ee are the cams mounted on each end of the shaft f carried by the frames
underneath the roller c. The surfaces of these cams bear upon or engage with
projections d 2 formed on the cross pieces d' of the stirrups so as in their revolution
to operate the latter and consequently the top roller 6 bringing the latter nearer
to or permitting it to recede further from the roller c the spring g between the
said rollers causing the latter action. The cam shaft is operated by the hand-
wheel and by this means the distance between the rollers is adjusted according
to the thickness it is desired to roll the dough.
The rollers b and c are operated by the hand lever hand gearing shown in
Figures (1 & 3) or they may be operated by steam or other power. The rollers
are made hollow for internal heating and each one is fitted with a chimney for the
escape of the heated gases, the chimney i of the lower roller passing through the
chimney k of the upper roller as shown in the section Figure (6).
These chimneys are fixed respectively to the, boxes i, forming the elbows
between them and the rollers and as the upper roller moves up or down its
chimney k moves over or slides upon the inner chimney i a space being left
between for the passage of the gases from the upper roller.
11 are Bunsen burners fitted in the said boxes or elbows and are connected with
the heating tubes passing through the rollers.
Gas regulators m are fitted to each of the burners as shown in Figure (7) which
is an end elevation of Figure (6).
The creeper of the machine is driven by a chain from one of the spur or gear
wheels.
:
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) In dough brakes or pastry-rolling machines the improved means for rolling

page_text: the dough of an even thickness throughout consisting of cams or scrolls mounted
on each end of a shaft carried beneath and running parallel with the lower roller
so as to adjust the distance between the said rollers substantially as herein described
and set forth.
(2) In machines as above claimed the means for adjusting the top roller the
required distance from the lower roller consisting of the cams or scrolls e mounted
on the shaft fso as to operate simultaneously the stirrups d connected with the
upper roller in conjunction with the springs g.substantially as described and for
the purposes specified.
in
(3) In means for heating the rollers of dough brakes or pastry-rolling machines
forming the said rollers hollow and providing them with heating tubes
combination with burners 1, chimney ik boxes or elbowsk and gas regulators m
substantially as described and for the purposes specified.
(4) The improvements in dough brakes or pastry rolling machines substantially
as described and shown in the accompanying sheet of drawings.
Dated this 20th day of October 1896
J. B. FLEURET,
5 Hatton Garden, London, E.C., Agent for the Applicant.