Improvements relating to Machinery for Moulding Dough and like Material."
Year: 1896

page_text: "Improvements relating to Machinery for Moulding Dough and like
Material."
We, CHARLES EDWARD POINTON, and JOIN EDWARD POINTON, both of Wrekin
Road, Wellington, in the County of Salop, Engineers, and GEORGE LEWIS, of Park
Street, Wellington aforesaid, Baker, do hereby declare the nature of this invention
to be as follows:-
This Invention consists of improvements relating to machinery for moulding
dough and like material, our object being to construct a machine of few and
simple parts that shall more efficiently mould the material than the existing
machines or appliances employed for such purposes.
In one construction of a dough moulding machine in accordance with our
invention we fix a pair of discs of cast iron or other material upon a shaft which
we arrange to be driven or revolved in any convenient manner. We preferably
arrange that the adjacent faces of the disc bosses or hubs shall revolve against a
central collar formed upon or attached to the shaft. The rims or peripheries of
the discs are enclosed by a drum like stationary casing having internal ribs or
projections which together with the discs form a pair of annular spaces of the con-
figuration necessary for the moulding of the dough to the required size and
shape.
The disc rims or peripheries are of a curved or other required configuration,
but the diameter of one side of each disc is considerably less than the diameter of
the other side and the entire rim or periphery subtends an angle rather greater
than 90 degrees or a right angle, the extension beyond the right angle being at
the inner or smaller side of the disc. The smaller part or diameter of the disc
occurs in a line which would form the vertical centre line in the case of an
ordinary wheel or disc with a semi-circular or like grooved rim, the diameter
over the inner side or extremity of the wheel being somewhat greater than such
minimum diameter.
The dough is introduced into the annular moulding spaces through a suitable
aperture in the casing and on the revolution of the discs it is subjected to an
ordinary rotary or rolling action and also, by the peculiar formation of the rims
or peripheries of the discs, to a twisting or spiral action, and under such combined
actions the dough is thoroughly moulded to the required form before its discharge
through the outlet aperture or apertures in the casing.
We modify the precise form or configuration of the discs and the enclosing
casing which may be either with or without the projecting ribs, to suit the par-
ticular dough or like material and the form into which it is to be moulded, and

page_text: make other modfications in the construction of our improved machines to meet
the requirements of varying services.
Dated this 22nd. day of December 1896.
MARKS & CLERK
18 Southampton Buildings, London. W C. &
13 Temple Street, Birmingham. Agents for the Applicants.
COMPLETE SPECIFICATION.
"Improvements relating to Machinery for Moulding Dough and like
Material."
We, CHARLES EDWARD POINTON, and JOIN EDWARD POINTON, both of Wrekin
Road, Engineers, and GEORGE LEWIS, of Steam Bakery, Park Street, Baker, all
of Wellington, in the County of Salop, do hereby declare the nature of this in-
vention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
This Invention consists of improvements relating to machinery for moulding
dough and like material, our object being to construct a machine of few and
simple parts that shall more efficiently mould the material than the existing
machines or appliances employed for such purposes.
In one construction of a dough moulding machine in accordance with our
invention we fix a pair of discs of cast iron or other material upon a shaft which
we arrange to be driven or revolved in any convenient manner. We preferably
arrange that the adjacent faces of the disc bosses or hubs shall revolve against a
central collar formed upon or attached to the shaft. The rims or peripheries of
the discs are enclosed by a drum like stationary casing having internal ribs or
projections which together with the discs form a pair of annular spaces of the con-
figuration necessary for the moulding of the dough to the required size and
shape.
The disc rims or peripheries are of a curved or other required configuration,
'but the diameter of one side of each disc is considerably less than the diameter of
the other side and the entire rim or periphery subtends an angle rather greater
than 90 degrees or a right angle, the extension beyond the right angle being at
the inner or smaller side of the disc. The smaller part or diameter of the disc
occurs in a line which would form the vertical centre line in the case of an
ordinary wheel or disc with a semi-circular, or like grooved rim, the diameter
over the inner side or extremity of the wheel being somewhat greater than such
minimum diameter.
The dough is introduced into the annular moulding spaces through a suitable
aperture in the casing and on the revolution of the discs it is subjected to an
ordinary rotary or rolling action and also, by the peculiar formation of the rims
or peripheries of the discs, to a twisting or spiral action, and under such combined
actions the dough is thoroughly moulded to the required form before its discharge
through the outlet aperture or apertures in the casing.
We modify the precise form or configuration of the discs and the enclosing
casing which may be either with or without the projecting ribs, to suit the par-
ticular dough or like material and the form into which it is to be moulded, and
make other modifications in the construction of our improved machines to meet
the requirements of varying services.
In the accompanying sheet of explanatory drawings to be hereinafter referred
to.-

page_text: Figure 1 is a side elevation, with part in section, of a dough moulding machine
constructed in accordance with our invention.
Figure 2 is a sectional end elevation of the machine.
Figure 3 is a section, to a larger scale, through one of the annular moulding
chambers.
The same reference letters in the different views indicate the same parts.
We employ a pair of wheels such as A A' which we mount upon a shaft B with
an intermediate or central collar C between them, such collar being either formed
with or attached to the shaft. The wheels A A¹ are secured to the shaft B by
means of feather keys or in such other manner that whilst they are compelled
to rotate with the shaft, yet, when necessary for cleaning purposes, they may be
caused to slide along the shaft away from each other, and be pushed back into
position again after cleaning.
The perimeters of the wheels are enclosed by the casing D, and the shaft B is
supported by the bearings mounted on the standards E E¹.
During the working of the machine, lateral movement of the wheels is prevented
by the central collar C, and by the studs F F¹, which are screwed into the boss
of the wheel A' as illustrated at Figure 2, and cottar pins or pegs passing through
the projecting outer ends of the studs. In this manner the two wheels are tied
together and retained in their working position against the central collar C. To
slide the wheels out from the casing D, we withdraw the cottar pins or pegs
from the studs, thus disconnecting the wheels and permitting of their outward
movement in opposite directions, sufficient space G G being provided between the
outer side of each wheel and the inner sides of the standards E E, to enable each
wheel to be drawn out clear of the casing D for the thorough cleaning of the
working surfaces of the machine. The wheels are readily connected together
again by simply pushing them back against the central collar and afterwards
inserting the cottar pins or pegs through the projecting outer end of the studs.
We provide holes or slots such as a a¹ in each wheel for the insertion of suitable
draw bars by which the wheels can be readily drawn or pushed along the shaft.
The shaft B with the wheels A A' mounted thereon are caused to revolve together
in the same direction by hand or mechanical power, applied or transmitted to the
shaft in any suitable and well known manner.
The dough to be moulded is admitted to the annular moulding chambers H H
and discharged therefrom by way of the double mouthed aperture attachment J,
the admission apertures being at the lower side J¹, and the discharge apertures at
the upper side J.
We find that the proper and efficient working of the dough depends chiefly
upon the correct proportions and arrangement of the frictional or working surfaces
formed by the rims of the revolving wheels A A' and the interior of the fixed
casing D, which together form the annular moulding chambers.
It will be understood that the two chambers H and H have no connection or
communication with each other, each being independent of the other, although
the two rotating working surfaces formed by the wheels of course move together.
We find, after long and costly experiments, that the correct form of the moulding
chambers is as shown at the sectional view, Figure 3. The surface A9 of the
wheel is struck from a radius K which is rather greater than the depth L of the
chamber. The stationary working surface of the inner projecting rib D¹ of the
fixed casing D is struck from a radius K' equal to the radius K. The bottom
of the chamber is of a form corresponding to the arc of a circle whose centre is
at M, or the point where a line joining the inner extremities of the rim cuts the
centre line NO. The inner corner or angle P is well rounded as shown to prevent
lodgment of particies of the dough that occurs without such rounding. The
working surface of the wheel is extended beyond the centre line O N for a dis-
tance which varies with the nature of the dough and the amount of working
required. Without such extension the dough would have a simple rotary motion
imparted to it whilst being carried around the annular moulding chamber, but by

page_text: the provision of the extension an additional turn or twist is imparted to the dough
and it is thus subjected to an additional kneading or like action.
We sometimes construct a moulding machine with but one annular moulding
chamber or we may employ more than two such chambers in the one machine,
and we make other modifications to meet varying services or requirements, without
departing from the essential features of our invention.
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.
1. The improved method of moulding dough and like material substantially
as described.
2. A machine for moulding dough and like material constructed and arranged
substantially as described.
3. The improved construction and arrangement of the frictional or working
surfaces of an annular moulding chamber in a machine for moulding dough and
like material substantially as described.
4. In machinery for moulding dough and like material the combination of the
wheels A A¹ mounted upon and rotating with the shaft B, with a fixed casing D
having internal projecting ribs D which in conjunction with the rims of the said
wheels A A' form the annular moulding chambers H H substantially as described.
5. In machinery for moulding dough and like material the combination com-
prising, the wheels A A¹ mounted upon and attached to the shaft B by feather
keys or connections which compel the said wheels A A to rotate with the said.
shaft B but permit of a sliding movement of the same along the shaft, and the
studs F F for preventing such sliding movement of the wheels during the working
of the machine substantially as described.
6. In machinery for moulding dough and like material the combination com-
prising the sliding wheels A. A connecting bolts F F, shaft B having a central
collar C and fitted with feather keys, and the fixed casing D having internal pro-
jecting ribs as D and provided with a double mouthed aperture attachment J,
substantially as described.
7. In machinery for moulding dough and like material the combination com-
prising a wheel A having a rim of the form of a quarter circle with an extension Q
beyond the centre ON, as in Figure 3 of the drawings, and a casing I) having an
internally projecting rib D which together with the rim of the said wheel A forms
an annular moulding chamber substantially as described.
Dated this 22nd day of October 1807
MARKS & CLERK,
18 Southampton Buildings, London. W.C. &
13 Temple Street, Birmingham. Agents for the Applicants.