Improvements in Machines for Moulding Dough and like' Plastic Material.
Year: 1898

page_text: Date of Application, 9th Aug., 1898
Complete Specification Left, 9th June, 1899-Accepted, 9th Nov., 1899
PROVISIONAL SPECIFICATION.
Improvements in Machines for Moulding Dough and like' Plastic
Material.
We, CHARLES EDWARD POINTON and JOHN EDWARD POINTON, both of Wrekin
Road, Wellington, in the County of Salop, Engineers, do hereby declare the
nature of this invention to be as follows:
This invention consists of improvements in machines for moulding dough and
like plastic material, our object being to produce simple and convenient machines
for the rapid and efficient moulding of the dough or like material by imparting
the required tension and pressure to the piece of dough or like material after
the manner of hand moulding.
In the application of our invention in one manner, we employ a moulding
trough of the required shape, which we set at an angle across the bed or framing
of our moulding machine. Between the under and open side of the trough and
the said bed or framing we cause an endless band belt or table to travel, making
it to run flush with the bottom edges of the trough and thus to form the base of
the latter. The dough or like plastic material is fed into one end of the trough
and by the action of the moving band in conjunction with the inclination of
the trough to the centre line of such band a combined rotary and forward
movement, or a screw like motion is imparted to the dough or like material,
whereby the skin is stretched and the material moulded to the required form
after the manner of hand moulding.
The working surface of the moulding trough is curved to any required shape
and the trough itself is set at such an angle or angles with the longitudinal
centre line of the moving band belt or table, as will give the necessary tension
to the dough and mould it to the required shape with a smooth skin or surface.
The discharge or outlet end of the trough is made at such an angle with the
longitudinal centre line of the trough as will cause the moulded piece of dough
to be discharged with its rear end closed and moulded after the manner of
moulding by hand.
In another manner of carrying our invention into effect we employ a barrel
or cylinder on the inside of which we form or attach our moulding trough
extending it from the end of the barrel to the other in a screw or spiral form
of the required section or shape. Within this barrel, which is fixed stationary
on suitable supports we place a smaller or inner barrel arranged to be turned
or revolved by any ordinary means; the periphery of the barrel is arranged
to move adjacent to the edges of the moulding trough. The dough to be moulded
is placed in one end of the trough and by the action of the revolving barrel is
carried through the moulding chamber, the revolving barrel thus serving the
same function as the moving band hereinbefore described.
Dated this 8th day of August 1898
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham,
Agents for the Applicants.

page_text: Improvements in Machines for Moulding Dough and like Plastic
Material.
We, CHARLES EDWARD POINTON and JOHN EDWARD POINTON both of Wrekin
Road, Wellington, in the County of Salop, Engineers, 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 consists of improvements in machines for moulding dough and
like plastic material, our object being to produce simple and convenient machines
for rapid and efficient moulding by imparting a pressure and surface tension
to the pieces of dough or like material after the manner of hand moulding.
In the application of our invention in one manner, we employ a moulding
trough of the required shape, which we set at an angle across the bed or framing
of our moulding machine. Between the under and open side of the trough and
the said bed or framing we cause an endless band or belt, or a table, to travel,
making it to run flush with the bottom edge of the trough and thus to form the
base of the latter. The dough or like plastic material is fed into one end of
the trough and by the action of the moving band or table in conjunction with
the inclination of the trough to the centre line of such band, or the centre of the
table, a combined forward and cross rolling, or a screw like motion, is imparted
to the dough or like material, whereby the skin is stretched and the material
moulded to the required form after the manner of hand moulding.
The working surface of the moulding trough is curved to any required shape
to suit the various classes of plastic materials and the trough itself is set at such
a position in relation to the moving band, belt, or table, as will give the necessary
tension to the dough and mould it to the required shape with a smooth skin or
surface.
The discharge or outlet end of the trough is made in such a form that the
pressure upon the dough or like plastic material will be gradually released and
the moulded piece of dough be discharged with its rear end closed and moulded
after the manner of moulding by hand.
In another manner of carrying our invention into effect we employ a barrel
or cylinder on the inside of which we form or attach our moulding trough,
extending it from one end of the barrel to the other in a screw or spiral form
of the required section or shape. Within this barrel, which is fixed stationary
on suitable supports, we place a smaller or inner barrel, drum, or roller, arranged
to be turned or revolved by any ordinary means; the periphery of the drum is
arranged to move adjacent to the edges of the moulding trough. The dough
to be moulded is placed in one end of the trough and as it is carried through
the same by the action of the revolving drum the spiral disposition of the trough
causes a combined forward and cross rolling, or a screw like motion, to be
imparted to it; the revolving drum thus serves the same function as the moving
band or table hereinbefore described.
The accompany sheet of explanatory drawings or diagrams represent two types
of our improved moulding machines."
Figure 1 is an elevation and Figure 2 a plan representing the arrangement
of the moulding trough with an endless band or belt serving as the dough carrier.
Figure 3 is a cross-section of the trough to a larger scale.
Figure 4 is a plan and Figure 5 an elevation representing the arrangement
of the moulding trough with a circular table serving as the dough carrier.

page_text: The same reference letters in the different views indicate the same parts.
Referring to Figure 1, 2, and 3, the dough carrier, consisting of the band or
belt A, is placed over the drums or pulleys B and C as shown. The upper or
working side of the band, which is driven in the direction indicated by the
arrow, is caused to pass under the inclined moulding trough D and adjacent to
the under and open side thereof. The trough is supported in any convenient
manner in its position above the band A; undue sagging of the upper or working
side of the band is prevented by the guard or supporting bed E. The pieces
of dough to be moulded are placed on the upper side of the band A and by the
movement of the latter are carried through the inclined trough D. In passing
through the trough the dough has a combined forward and cross rolling, or a
screw like motion, imparted to it, and is moulded to the required form with a
smooth and even skin or surface such as is attained by hand moulding.
In the Figures 4 and 5 the dough carrier consists of a circular table as F which
is rotated in the direction indicated by the arrow at Figure 4. The moulding
rough D', which is fixed in its position in any convenient manner, has its under
and open side adjacent to the upper face of the rotating table or dough carrier F
The trough is not fixed in a position concentric with the table but is arranged
and fixed in an eccentric or angular form, as illustrated; in order that as the
dough is rolled through the trough by the action of the rotating table or carrier F,
it shall be at the same time turned or rolled in a cross or transverse direction;
we thus impart to the dough a combined forward and cross rolling, or a screw
like motion, as it is passed through the trough, as with the arrangement of the
trough with the endless band type of dough carrier as herein before described.
The moulded dough portions are discharged through the central aperture of the
rotating table or carrier F.
The angularity or eccentricity of the trough is made to suit the amount of
working required to be given to the particular class of dough or plastic material
to be moulded.
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. In machines for moulding dough and like plastic material, means for impart-
ing to the said material a combined forward and cross rolling, or a screw like
motion, substantially as and for the purpose described.
2. In machines for moulding dough and like plastic material, the combination
with the dough or like carrier of an angularly or eccentrically disposed moulding
trough or chamber, substantially as described.
Dated this on day of June loVY.
MARKS & CLERK,
18, Southampton Buildings, London, W.C.,
13, Temple Street, Birmingham, and 25, Cross Street, Manchester,
Agents for the Applicants.