Improvements in or relating to Cake Machinery.
Year: 1897

page_text: Date of Application, 30th.June, 1897-Accepted, 31st July, 1897 ul
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PROVISIONAL SPECIFICATION.
Improvements in or relating to Cake Machinery.
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I, DANIEL MOREY HOLMES, of Glaspereau, Acton, in the County of Middlesex;
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:-
ויי
This invention relates to machinery employed in making cakes, and is par
ticularly suited to those machines in which a piston discharge is used, although,
it is applicable to any other form of cake-making machine.
I shall therefore describe this invention in connection with such, a machine
by reference to drawings.
71
It has been found that in machines having an intermittent discharge, such.
as those above referred to, the employment of a continuous feed-motion such as
is produced by two rollers in close proximity to one another and rotating in opposite
directions, is objectionable in that it causes a more or less complete separation
of the larger particles, such as plums, and candied peel, from the rest of the
ingredients forming the cakes. At the same time it is found that the ordinary-
piston-discharge without any additional feed-mechanism is unsatisfactory, since
it frequently happens that air cells occur in the dough and the outward sucking.
movement of the piston consequently fails to draw sufficient, if any, dough, into
the cylinder or cylinders to which air has found access, and the subsequent
expelling stroke of the piston results in a correspondingly diminished discharge
The object of the present invention, therefore, is to provide a feed motion-of
a kind which will nol effect the undesirable separation of ingredients,, and which,
so long as there is suflicient material in the hopper to be workable, will yet pack,
the paste or dough over the ports at the proper time, and effectively-provent the
undue access.of air or other gases to the cylinders to the exclusion of the proper
amount of dough.
The accompanying drawing is a side elevation of one form of a cake-machine
constructed according to this invention, parts to which it is unnecessary to refer
for the purpose of the present invention being omitted in the drawing,
(IF TH
A is the hopper containing the material from which cake is to be made, the.
various ingredients, being, as is usual, thoroughly well mixed before, being
introduced into the hopper A.
B is the frame-work of the machine supporting the various parts... Dis., a
rocking-shaft which extends to the opposite side of the machine, and to which
is imparted an oscillatory movement about its own axis, that is to say it does not
make a complete revolution at any time but continues to rock or oscillate in such
wise as to cause the arm E which is keyed to it to move into some such position!
as that shown in dotted lines and then return to that shown in full, lines. This
oscillatory movement is usually obtained by means of a link connected to a crank
on the rocking shaft, the other end of said Jink being connected to a crank, or
eccentric rod, on or actuated by the main driving shaft. This device being
commonly employed in such machines is not shown. To the lower end of the arm É

page_text: is attached a sliding block E carrying a pin E3 and working in a recess E, its
position in the recess being adjustable by means of the screw and hand-wheel E.
The position of the block in relation to the shaft D determines the length of
path of the pin E and therefore also the travel of the pistons F, the slide FL
which actuates them being attached to and operated by the pin Es by means of
the link Fa
The above detailed arrangement imparts to the piston the necessary
reciprocatory motion.
In order them to produce a feed-motion in connection with the piston discharge,
which feed motion shall be both intermittent and occurring just when the pistons
are sucking material into the cylinders, I form an extension G upon the arm E,
conveniently diametrically opposite the arm E on the shaft D. Or I attach
may
a second arm G in an equivalent position. For purposes of construction and
cheapness however it is preferable to make the arms E and G in one piece. The
arm G is slotted for the greater portion of its length and in the slot is a block G¹
which can be clamped by any suitable means in any position in the slot, such as
by a gib-plate and bolt on the side remote from the pin G. The pin G carries
with it one end of a link G³.
Within the hopper A and through practically its entire length run two feed
rollers, not shown, having their axes parallel. One end of each of these spindles
on which the said rollers are mounted is shown at H and H', the journals therefor
being in the end plate A¹ of the hopper A. The opposite ends of the roller spindles
are similarly journalled in the opposite end plate of the hopper. The two spindles
Hand Hare extended on the side shown and each receives a cog wheel H³,
which cog wheels gear with one another. The extension of the spindle H¹ is
greater than that of the spindle H and the former receives in addition, the ratchet-
wheel Hand the arm H, the wheel being rigidly attached to the shaft and the
arm free to rotate upon the shaft. At or near the extremity of the arm H' is
pivotted that end of the link G3 which is not connected to the link G. The arm H*
carries a pawl H³ arranged to engage with the ratchet wheel and rotate it when
the link is moving in compression, but not when the link moves in the oppo-
site direction. The cog wheels H2 effect simultaneous rotation of both rollers.
It will appear that I thus obtain an intermittent feed by the rotation of two
rollers within the hopper, at such time as the pistons are being withdrawn from
the cylinders, and corresponding accurately in magnitude with the travel of the
pistons, whereas when the latter are emptying the cylinders the rollers are
stationary and I thus avoid the separation of ingredients above referred to.
do not however confine myself to the specific construction above described
but may, without departing from the spirit of the invention, employ other
ineans such as eccentrics to operate the pawl arm H, or the shaft D may revolve,
and the links and be connected by straps to eccentric sheaves mounted on
the shaft D, or I may employ a cog-wheel and a toothed sector gearing with it
in the place of the pawl and ratchet the sector being mounted on a different axis
from the cog-wheel, the latter being caused to drive the rollers. The toothed
sector would in that case be caused to revolve, driven by, say, the shaft D.
I
Neither is it essential that the feed motion should be simultaneous with the
outward motion of the pistons though that arrangement is preferable to any other,
nor do I confine myself to roller feed-mechanism or piston discharge.
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 a cake machine the combination with an intermittent discharge of an
intermittent feed.
2. In a cake machine the combination with an intermittent piston discharge
of an intermittent roller feed.
3. In a cake machine, the combination with a piston discharge of a roller feed

page_text: 5
mechanism substantially as described and illustrated in the accompanying
drawings.
4. The combination and arrangement of parts constituting the complete cake
machine substantially as described and illustrated in the accompanying drawings.
Dated this 29th day of June. 1897.
DANIEL M. HOLMES,
Boult & Wade,
Agents for the Applicant.