Improvement in Dough Shaping and Cutting Machines.
Year: 1894

page_text: ate of Application, 11th Dec., 1894-Accepted, 2nd Feb., 1895
COMPLETE SPECIFICATION.
Improvement in Dough Shaping and Cutting Machines.
1, FRITZ DÜHRKOP, of No. 550 East 82nd Street, New York City, County and
State of New York, United States of America, Manufacturer, 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 a machine for forming fermented dough into cylindrical
bodies and cutting such bodies up into short lengths, sufficient to form a loaf or a
roll. The cutting mechanism is so arranged, that the blade alternately remains
inactive above the dough for any given length of time, and then descends with
great rapidity through the dough. Thus a sufficient quantity of dough is first
shaped and fed forward to form the bread or roll, and then the cutting action
is performed so quickly that the blade does not interfere with the continuously
moving body of dough.
In the accompanying drawing:
Figure 1 is a side elevation, partly in section of the machine.
Figure 2 a vertical section on line 2, 2, Fig. 1.
Figure 3 a horizontal section on line 3, 3, Fig. 2.
Figure 4 a horizontal section on line 4, 4, Fig. 1.
Figure 5 a sectional top view of the knife-operating mechanism.
Figure 6 a horizontal section of part of the same.
Figure 7 an elevation, partly in section, of the collars
Figure 8 a side view of Fig. 5.
9, i, and
The letter a, represents a shell or vessel, into which the dough is thrown, and
which is provided, at its lower end with a discharge nozzle a', that delivers
the dough A, upon an endless feed apron b. This apron passes over a pair of
rollers, of which the roller b', driven from the power shaft is shown. In order to
feed the dough out of nozzle a', there is hung within vessel a, a conveyer screw c,
which receives motion from power shaft c', by worm c², and worm wheel c³, which
is mounted upon the shaft c, of the conveyer screw.
The dough delivered upon the apron b, is cut into the lengths required for
forming a loaf of bread or a roll, by a vertically reciprocating blade or cutter d,
guided in slotted frame d', and held in its elevated position by a spring d. The
head d, of the cutter d, is engaged by a roller e', of a one-armed lever e, pivoted
by pin 2, to a fixed support e³.
The lever e, is oscillated by a rod f,
terminates at its lower end in a toe f.
which moves within a tubular guide f³, and
This toe is engaged by a roller g', pivoted
to a lug g', of a loose collar g, (Fig. 1), surrounding a horizontal shaft h. This
shaft is revolved by cone pulley h', that is connected to a cone pulley e³, of power
shaft c', by belt c*.
Opposite to the loose collar g, the shaft h, carries a fixed collar i, having
a beveled notch i', (Fig. 7). This notch is adapted to be engaged by a beveled
spring bolt g', sliding in perforation 93, of collar g. Normally the bolt 3,
engages the fixed collar i, and thus the loose collar g, is revolved by shaft h,
to reciprocate the rod f, and consequently the cutter d.
In order to make the motion of cutter d, not uniform but intermittent, I withdraw
the bolt g², from the fixed collar i, for a short time during each revolution of the
shaft, and thus arrest the motion of the cutter between its descents. This is
effected in the following manner: .:
The shaft h, is provided with a worm 1, engaging a worm wheel j, mounted upon

page_text: the shaft 3, of roller . Upon this shaft is also mounted the grooved roller 1,
which is adapted to operate a sliding rod k, when the latter is held against it by
friction clutch or roller m. The sliding rod k, is provided with a forked cross-
piece, which straddles a fixed guide rod . This guide rod is engaged by
a vertically adjustable collar k, having clamp screw, by which the position of the
collar, and consequently the stroke of the slide may be regulated. A spring k*,
secured to cross-piece k', by rope k, serves to normally draw the slide upwards.
The tension of the spring can be regulated by pawl and ratchet k². The rod k, is
adapted to be held and clamped against the roller j¹, by means of the roller m,
pivoted to lever m', which turns on pivot m².
The upper end of the lever m', is connected to a spring m³, which tends to force
the roller m, against slide k, and the latter against roller (Fig. 2). In this way
the revolution of roller, when engaging the rod k, will tend to draw the same
down against the action of its spring, while when the rod becomes disengaged, it
will be drawn up by such spring. The lever m', is oscillated at each revolution of
shaft h, by the lug g', of foose collar g. This lug engages a bail m*, of lever m²,
(Fig. 8) which is provided with a seat or notch m. At each revolution of the
shaft h, the lug g, will upon leaving its seat mo, vibrate lever m', by means of the
bail m, to take the friction roller m, off the roller j', and release the slide k, k',
which will now be drawn up by its spring. When upon the further revolution of
the shaft h, the lug g', re-enters its seat m³, the spring m³, will vibrate lever m²,
to clutch the slide k, k, between rollers m, j, and in this way the slide is again
lowered.
The cross piece ³, of the slide, when arriving at its lowermost position, strikes
against one arm of a lever n, turning on pivot n'. The other end of this lever
operates by a rod n², a pivoted spring finger n³, (Fig. 1) having a beveled edge nt,
adapted to engage the spring bolt g. This lever, when lowered by means of rod n³,
is interposed within the path of the spring bolt, and will push the same away from
the fixed collar i, and back into the movable collar 9. Thus the movable collar is
disconnected from the fixed collar, and its motion is arrested until the withdrawal
of the finger, by vibration of lever n, when the bolt is free to shoot forward and into
re-engagement with the fixed collar. In this way the stroke of slide k, k', by the
movement of lever n, and finger n³, determines the pause between the strokes of the
cutter d.
It will be seen that by the above described mechanism, an intermittent feed is
imparted to the cutter, so that it remains at rest above the feed apron, for a
sufficient time to permit the dough to be fed forward upon the apron. When the
proper length of dough has been thus fed forward, the cutter descends with great
rapidity, so as not to interfere with the continuous forward motion of the dough.
By setting the collar k³, the stroke of the slide k, k¹, and consequently the motion
of lever n, may be adjusted to adjust the play of finger n', and to thus shorten or
lengthen the intervals between the descents of the cutter. In this way long and
short sections of dough may be severed from the main body, to form bread and rolls
of various sizes.
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. The combination of a vessel having a discharge opening, with a conveyer, a
feed apron and an intermittently reciprocating cutter above the apron, substantially
as specified.
2. The combination of a vessel having a discharge opening with a conveyer, a
feed apron, a reciprocating cutter above the apron, and adjustable mechanism for
varying the intervals between the strokes of the cutter, substantially as specified.
3. The combination of a feed apron with a cutter, a lever operating the same, a
rod secured to the lever, and a disk having a roller that engages the red,
substantially as specified.

page_text: 4. The combination of a cutter with an operating lever, a rod f, a shaft n, a rust
and loose collar upon the same, a spring bolt adapted to connect the collars, and a
roller g', adapted to engage rod f, substantially as specified.
5. The combination of a cutter with an operating lever, a shaft h, a fast
and loose collar upon the same, a spring bolt adapted to connect the collars, a
finger adapted to engage the bolt, a lever that carries the finger, and an adjustable
slide engaging said lever, substantially as specified.
6. The combination of rollers j', 'm, with a slide engaged by the same, an
adjustable collar k, a lever n, finger n³, collars i, g, spring bolt g³, rod f, lever e, and
cutter d, substantially as specified.
7. The combination of slide k, k', with roller j', lever m², roller m, pivoted
thereto, a yoke mt, secured to the lever, and with a collar g, having lug 9', adapted
to engage the yoke, substantially, as specified.
1004
ALLISON BROS.,
Agents for the Applicant.