Improvements in Mechanism for Moulding Paste or Dough.
Year: 1897

page_text: Date of Application, 14th Oct.,
1897
Complete Specification left 14th July 1898-Accented 20th Aug 1898
t.
PROVISIONAL SPECIFICATION.
Improvements in Mechanism for Moulding Paste or Dough.
I, JOHN HUNT, of Baldwin Street Works, Baldwin Street, Bolton, in the County
of Lancaster, Engineer and Machine Maker, do hereby declare the nature of this
invention to be as follows, that is to say:-
°
It relates to moulding mechanism for use in the production of pies, puddings
and like articles of pastry or dough and consists in constructing and arranging
certain of the parts forming such mechanism so that more of the functions thereof
are performed automatically and with an expenditure of less energy than is the
case with the mechanism as heretofore constructed.
In carrying my invention into effect I construct the plunger or upper die part
of the mould so that in descending into the other part (of whatever kind or shape)
containing the paste or dough a suitable rotary motion is transmitted to it at or
during an appropriate part of its downward passage by which the squeezing pera-
tion which forces the paste or dough into proper shape is greatly facilitated and
requires less power to effect this than it does when not rotated as described, while
on the said plunger rising or receding from the lower mould, the reversal in the
direction of its said rotary motion relieves it of any adhering paste which has
heretofore been to release by the counteractions of a valve, thus in my present
mechanism said valve is dispensed with.
To transmit said rotary motion to the plunger I employ any suitable cam,
ratchet or like mechanism secured to or arranged to operate in connection with the
spindle upon which the plunger is mounted, or I may fix a projecting piece on
the plunger, spindle or parts coupled thereto in order that as the lever arm
descends to bring down said plunger, it will come into contact with said projection
and cause it to rotate so that the plunger is moved as desired. Suitably formed
spring mechanism being used to effect the return movement of said plunger as
it ascends.
In connection with the plunger mechanism constructed as above described I
arranged means whereby the sheet metal, porcelain or like moulds (when this
kind of lower mould is used) may be locked and firmly held during the operations
of the plunger therein while on its ascent out of same they are released so that the
operative may readily displace them by others as is well understood and that
without having any care to see that they are locked in position as has heretofore
been the case.
This locking of the sheet metal moulds is effected by projecting pieces on the
rotary plunger spanning or otherwise laying hold of the arm of the well known
locking device at present in use in such a manner that they will rotate said device
to lay hold of the sheet metal moulds and secure them as desired while on the
return of the plunger said locking action is reversed and the moulds are freed to
be displaced by others.
The securing of the upper or plunger dies to their operating spindles is effected

page_text: by appropriately formed bayonet joints shaped so that a holding piece may retain
then when placed in position but which allows them to be readily detached there-
from for interchanging purposes as will be well understood, so that when a plunger
for one process has completed its work another may be readily substituted for it.
The mechanism above described is equally applicable for machines arranged to
be operated by hand, pedal or power mechanism and when any of these two latter
are used wherein the sheet metal or other bottom moulds have to be rapidly or
quickly changed or displaced by others, or opened for the removal of the moulded
paste, I arrange a bearing plate to rotate beneath the plunger and carry several
of these moulds at one and the same time by which means their interchangement
may be carried out at any time and with any one of them except the one
immediately beneath the plunger.
The rotary bearing plate for the bottom moulds may be operated by hand but
I preferably arrange it to be automatically rotated, by appropriate ratchet or like
mechanism as it has to intermittently move in its path.
D11 191
1
1007
I, JOHN HUNT, of Baldwin Street, Bolton, in the County of Lancaster, Engineer
and Machine Maker, 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, that is to say: -
It relates to moulding mechanism for use in the production of pies, puddings
and like articles of pastry or dough and consists in constructing and arranging
certain of the parts forming such mechanism so that more of the functions thereof
are performed automatically and with an expenditure of less energy than is the
case with the mechanism as heretofore constructed.
In the accompanying sheets of drawings which are illustrative of my invention-
Fig. 1 is a side elevation of a machine made in accordance with my invention.
Fig. 2 is a view of said machine as seen from above.
Fig. 3 is a side elevation similar to Fig. 1 but with certain of the parts shown
in other positions.
Figs. 4 and 5 are side and top views drawn to an enlarged scale of a part herein-
after referred to.
Fig. 6 is a drawing in detail, same scale as Figs. 4 and 5 of a fixing plate herein-
after described.
Figs. 7 and 8 are side and front elevations of a modified form of machine made
in accordance with my invention and arranged to be operated by power.
Fig. 9 is a view of the machine, shown by Figs. 7 and 8, as seen from above.
Fig. 10 is an elevation of a portion of a machine showing a modified form of cam
mechanism for the purpose hereinafter described.
Figs. 11 and 12 are sectional views in detail showing a modification in the
driving gear of a power machine as hereinafter described.
Figs. 13 13 and 14 are illustrative of locking devices for retaining certain of
the parts as hereinafter explained.
Fig. 15 is a section on line B-C of Fig. 12 and as seen in the direotion indicated
by the arrow D.

page_text: Similar letters and figures of reference indicate similar parts throughout the
several views.
In carrying my invention into effect I construct the plunger or upper part of
the mould a (which is mounted on the spindle c arranged to slide in the frame-
work A by the handle d to which it is connected by the rod e in the well known
manner) so that in descending into the other part 6 which contains the paste or
dough, a suitable rotary motion is transmitted to it just as it is completing or
about to complete its downward passage, by which means the squeezing operation
which forces the paste or dough into proper shape is greatly facilitated and requires
less power to effect than it does when it is not thus rotated, while on said plunger a
rising or receding from the mould the reversal in the direction of its rotary
motion relieves it of any adhering paste which has heretofore been to release by
the counteractions of a valve, consequently in the mechanism which I now employ,
said valve is dispensed with.
To transmit rotary motion to the plunger a I mount a projecting piece f upon
the plate to which said plunger a is attached (said plate c¹ being secured to the
spindle c) said projecting being mounted in such a position that when the handle
lever is being brought into the position shown by Fig. 3 its arm 'd' comes into
contact with it (said projection f) causing it to move or.slightly rotate as desired
(its spindle c being mounted in the bearings or framework A as also in the coupling
hoop in such a manner as to allow said part thus to rotate), the spring y at this
time being drawn into a state of tension so that immediately the lever d commences
its return motion said spring g will begin the return motion of the parts ac and c¹
while at such time they will be ascending out of contact with the part 6.
Instead of the lever d causing the part c¹ to revolve by coming into contact
with the projection f, I may mount an incline or cam surface h upon the bearings
or framework A and secure a projecting pin h¹ on the spindle c (shown by Fig. 10)
so that as the spindle c descends its pin h will come into contact with the incline h
and forced to make a partial turn as desired. The spring device above described
being employed to effect the return motion.
C
In connection with the plunger mechanism above described, I arrange means
whereby the sheet metal, porcelain or like mould k (when such mould is used)
may be locked and firmly held during the operations therein of the plunger a
while on its ascent out of same, said mould k is released so that the operative may
readily displace it by another as is well understood such locking and releasing
actions being performed automatically.
This locking of the mould k is effected by projecting pieces mm² (secured to
the rotary plunger a or parts connected therewith) spanning or otherwise laying
hold of the arm n¹ of the well known locking device n which is at present extensively
employed, in such a manner that on the descent of the plunger a these projec-
tions mm are brought into the path of said arm n¹ in order that when the rotary
motion is transmitted to said plunger a its projection m will cause the part n to
rotate by pressing upon its said arm n¹ said rotation of the part n effecting the
locking or holding of the mould k by gripping it in the well known manner, while
when the plunger a ascends the reversal of its motion will bring its projection m¹
into contact with the arm n¹ and so release said. mould k.
Provided the moulds k are of an extremely tapering or oval form and cannot be
held by the device n against the part b. I mount a spring catch n² (Fig. 14) or
a weighted catch n³ (Fig. 13) or a horizontally hinged catch n (Fig. 13*) in position
upon the part b so that it may be forced by a projection n³ (Fig. 1) on the part cl
to lay-hold-of the upper edge of the mould as shown by Figs. 13 13 and 14.
Or such motion of the catch n² n³ or n may be effected manually if desired. When
the moulds are of oval form the plunger a is not rotated.
The securing of the plunger a to the plate el carried by the spindle c is effected
by appropriately formed hooks a¹ a³ which will enter the slots 3, 4 made in the
plate c (see Fig. 6) in such a manner as will allow them on slightly turning the
plunger a to lay hold of said plate in which position they are retained

page_text: said
by the retaining catch a³ (Figs. 1 and 2) by which means
plunger a may be readily placed into or taken out of position for interchanging
purposes or for the substitution of one class of plunger for another.
The mechanism above described is equally applicable for machines arranged to
be operated by hand as are those shown by Figs. 1, 2 and 3 or those operated by
power through the medium of the belt pulleys 5, 5ª gearing wheels 6 and 7
shaft 7 and crank plate 8 shown by Figs. 7, and 9, in which case the rotary
motion of the plunger a is effected by a cam 9 and lever 10 which force same in
one direction while the spring 11 effects its return motion.
Or the driving gear shown by Figs. 11 and 12 may be used instead of the
pulleys 5 and 5. In this case the driving belt is placed upon the wheel 12 which
runs loosely upon the shaft 7 and a disc 13 carrying a coupling ratchet 14 is
secured to said shaft 7".
The ratchet 14 is forced when free by its spring 15 so that its coupling part p
is made to enter the slot q in the hub of the wheel 12 on which any rotary motion
of the wheel 12 will be transmitted to the crank 8 and so to the spindle c and
plunger a.
But when the end of the ratchet 14 is held (against the force of the spring 15
by the lever arm 16 coming into contact with the arm p¹ of said ratchet 14) out
of the slot in the wheel 12 then said wheel may rotate freely without transmitting
motion to the shaft 7* and other parts.
From this it will be seen that the lever 16 controls the motion of the machine
so that the operator by lever, pedal or other means places it into or out of the path
of motion of the ratchet 14 so will the machine be put out of or into operation.
In the production of machines for operation by power I preferably make use of
a rotary bearing plate 17 upon which I mount several of the parts b, said plate 17
being intermittently rotated either manually or by the ratchet wheel 18 and crank
pin 19 (which derives its rotary motion from the shaft 7" by means of the gearing
wheels 20, 21, 22, and 23 and shafts 24 and 25) so that each mould may be brought
into position beneath the plunger a in succession or as is desired.
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 a machine of the class described plunger mechanism and means whereby
reciprocatory as well as slightly rotary motion may be transmitted to said plunger
substantially as specified.
2. In a machine of the class described plunger mechanism operating as set forth
and means whereby such mechanism is made to automatically lock or hold the
parts in which the paste or dough is moulded substantially as herein described.
3. In dough or paste moulding machines plunger mechanisms, mould locking
devices and means whereby the same may be automatically operated substantially
as herein specified.
4. In dough or paste moulding machines, plunger mechanism and mould locking
devices the same being constructed and arranged in combination substantially as
set forth.
5. In dough or paste moulding machines driving gear, plunger mechanism
mould locking and operating devices and means for putting these into and out of
action substantially as herein specified.
6. The machine for moulding paste or dough the same being constructed and
arranged to operate by hand or other power substantially as herein set forth.
Dated this 13th day of July 1898.
JOHN HUNT,
Per Samuel Hey, Agent.