Improvements in Dough-kneading Machines.
Year: 1890

page_text: Date of Application, 18th Mar., 1890
Complete Specification Left, 5th Apr., 1890-Accepted, 10th May. 1840
PROVISIONAL SPECIFICATION.
Improvements in Dough-kneading Machines.
1, BRYANT HUTCHINSON MELENDY, of 44, Grant Street, Battle Creek, in the County
of Calhoun, and State of Michigan, United States of America, Carpenter, do hereby
declare the nature of this invention to be as follows:-
The object of my invention is to provide a new and improved machine for kneading
dough for making all kinds of bread, crackers, pastry, etc.
The improved dough kneading machine is composed of a frame having ends con-
nected at the rear by a bottom piece and inclined partition. Between the ends of the
frame a roller is mounted on trunnions turning in recesses in the end frames, the
upper ends of said recesses connecting with outwardly-extending slots in which are
held blocks fulcrumed on pins or screws in the side edges of a transversly-extending
front board held between the end frames and pivoted near its upper end on screws in
said end frames. The front board with the inclined partition and the roller together
form a hopper in which the dough is kneaded. The front board may either be inclined
or be placed vertically, but the lower edge, however, must rest on the rim of the
roller. The inclined partition may be either straight or curved or it may be curved
and placed in front of the roller.
The blocks, before referred to as received in recesses in the end frames, are
furnished with hooks which engage with pins on the outside of the end frames, said
hooks serving to lock the blocks and the front board in place so that the roller-
trunnions will be prevented from moving out of the recesses and the lower edge of the
front board will rest on the top of the roller. To remove the roller, the books are
released from the pins and the blocks swung outward together with the front board
so as to uncover the recesses, when the roller-trunnions can be lifted out of the
same.
Against the underside of the roller presses a scraper adjustably secured on a
transversely-extending bar secured to the end frames at their front lower edges, the
scraper being preferably adjustably secured in place by set screws. The scraper is
set in an inclined slot in the bar and secured by small nails being driven through the
scraper and bar. Upon the inclined partition before mentioned is placed a metallic
plate, preferably held on top of a strip of paste-board or other suitable material and
both secured to the partition by a screw. The lower edge of the plate is about a
quarter of a turn from the upper edge of the scraper, so that, in case of wear of the
roller trunnions, the outer surface of the said roller will not draw away from the edge
of the scraper to lessen the performance of its duty or press against the edge of the
said scraper to increase the friction.
One of the roller trunnions is provided with a conical offset on which fits a
crank arm provided with a cross-shaped offset in which are formed slots crossing
each other, either of which slots is adapted to be engaged by a projection at the
upper end of a handle serving to turn the roller, the handle being securely
locked to the crank arm by a hook on the projection which engages the cross-
shaped offset.
In order to securely fix the crank arm in place on the conical
offset on the end of the trunnions said offset is provided with recesses with which
engage correspondingly-shaped offsets or ribs formed on the crank arm when the
latter is driven on to the offset. The operator may at any time conveniently move
the handle for engaging the projection thereon with one of the slots in the cross-
shaped offset of the crank arin so that the hook rests against the rear of the cross
of the said arm, thus locking the handle to the arm. By placing the handle with
its offset in the horizontal slot, the handle is made longer than when the offset is
placed in the vertical slot. By this simple means the handle is lengthened or
shortened in relation to the trunnion.

page_text: The machine is supported by means of a bracket secured to one of the end
frames provided with inwardly extending projections adapted to rest on top of a
table or bench the under side of which is clamped by a thumb screw screwing in
a lng formed on the lower end of the bracket. Other suitable means may,
however, be employed for the purpose. The dough is placed in the hopper
before described and the roller then rotated by turning the handle whereby the
dough is caused to revolve over and over and inward on itself, tearing the most
minute particles asunder and kneading the dough thoroughly and perfectly so as
to cause it to become very fine grained, the bread made therefrom being short
and light. After the dough has been kneaded sufficiently it passes out under-
neath through the space between the metal plate and the roller, and, according
to the space, is formed into a sheet of dough. The scraper scrapes off any dough
adhering to the roller so that the latter always presents a smooth surface to the
dough in the hopper.
In order to. agitate the dough in the hopper and to clean the plate, I employ a
sheet metal plate which is manipulated by the operator who takes hold of its upper
end..
1000
COMPLETE SPECIFICATION.
Improvements in Dough-kneading Machines.
I, BRYANT HUTCHINSON MELENDY of 44, Grant Street Battle Creek, in the County
of Calhoun, and State of Michigan, United States of America, Carpenter, 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:-
The object of my invention is to provide a new and improved machine for kneading
dough for making all kinds of bread, crackers, pastry, etc.
The Invention consists in certain parts and details and combinations of the same,
as will be described hereinafter and then pointed out in the claims.
Reference is to be had to the accompanying drawings, forming part of this specifi-
cation, in which figure 1 is a side elevation of the improved machine, with parts in
section and parts broken away. Figure 2 is an end elevation, and figure 3 is a sectional
end elevation, of the same. Figure 4 is a front view of the crank arm. Figure 5 is
a front view of the crank handle, and figure 6 is a sectional plan view of the same, on
lineæ figure 5. Figure 7 is an enlarged sectional end elevation of a modified form
figures 8 and 9 are sectional end elevations of modified forms of
of the scraper, and
the hopper.
Similar letters of reference indicate corresponding parts in all the figures.
A is the frame of the improved dough-kneading machine open at top and bottom
and having ends B B connecting with each other at the rear by a transversely-
extending bottom piece C and by a transversely-extending inclined partition D on
which is placed the metallic plate E preferably held on top of a strip E of pasteboard
or other suitable material, which with the metallic plate E is secured to the partition D
by a screw E, as is plainly shewn in figure 3. Between the ends B is mounted a
roller F provided with trunnions F and F turning in suitable recesses B1 formed in
the end frames B B, connecting with outwardly-extending slots B2 in which are held
the blocks G G fulcrumed on pins or screws G2 secured in the side edges of a
transversely-extending front board H held between the end frames B and pivoted near
its upper end on screws H₁, as is plainly shewn in figures 1 and 2.
The front board H with the partition D and the roller F together form a hopper in
which the dough is kneaded. The front board H may be inclined, as shewn in figures 3

page_text: and 9, or it may be placed vertically, as illustrated in figure 8. The lower edge,
however, must rest on the rim of the roller F. The partition D may be straight, as
shewn in figure 3, or curved, as illustrated in figure 8, or the said partition may be
curved and placed in front of the roller F, as shewn in figure 9, the latter modification
being merely a reversal of the modification shewn in figure 8. Hooks I are pivoted
on the outsides of the blocks G and G¹ to engage with pins I on the outsides of the
end frames B, said hooks I serving to lock the blocks G and G' and the front board H
in place so that the trunnions F and F are prevented from moving out of the
recesses B while the lower edge of the front board H rests on the top of the roller F.
To remove the roller F the hooks I are released from the pins I' and the blocks G
and G swung outward so that the front board H swings with the said blocks into the
position shewn in dotted lines in figure 2, thereby uncovering the recesses B¹ and
slots B2 so as to allow of the roller trunnions F and F being lifted out of the same.
Against the underside of the roller F presses a scraper J adjustably secured on a
transversly-extending bar J' secured to the underside of the front lower edges of the
end frames B. The scraper J is preferably adjusted by set screws J². As shewn in
figure 7, an inclined slot is formed in the bar J¹ in which the scraper J is set, small
nails being driven through the scraper J and the bar to hold the said scraper in place.
The lower edge of the plate E is about a quarter of a turn from the upper edge of the
scraper J, as is plainly shewn in figure 3, so that, in case the trunnions F of the
roller F wear, the outer surface of the said roller will not draw away from the edge
of the scraper to lessen the performance of its duty or press against the edge of the
said scraper to increase the friction.
One of the roller trunnions F' is provided with a conical offset F2 on which fits a
crank arm K provided with a cross-shaped offset K' in which are formed the slots K
and K³ crossing each other, as is plainly shewn in figure 4; either of the slots K'
or K³ is adapted to be engaged by a projection I formed near the upper end of a
handle L serving to turn the roller F, as is hereinafter more fully described, said
projection L being formed with a hook L adapted to engage the back of the cross K¹
so as to securely lock the handle L to the crank K. In the conical offset F2 are
formed a number of recesses F3 adapted to be engaged by correspondingly-shaped
offsets or ribs K₁ formed on the crank arm K so that, when the latter is driven onto
the offset F2, the ribs Ko fit in the said recesses F3 and thus securely hold the crank
arm in place on the end of the trunnion F¹. The operator may at any time con-
veniently move the handle L for engaging the projection L' with one of the slots K³
or K³ so that the hook L2 rests against the rear of the cross K₁ of the said arm K
thus locking the handle to the arm K. By placing the handle L with its projection L'
n the horizontal slot K² the handle L is made longer than when the projection L' is
placed in the vertical slot K³. By this simple means the handle L is lengthened or
shortened in relation to the trunnion F¹.
To one of the end frames B is secured a bracket O provided with inwardly-extending
projections 0 and 02 adapted to rest on top of a table Q while the under side of the
latter is engaged by a screw P screwing in a lug 0³ formed on the lower end of the
bracket O. Other suitable means may be employed for supporting the machine above
a table or bench.
The dough is placed in the hopper above described and the roller F is then rotated
in the direction of the arrow a by means of the handle L whereby the dough is caused
to revolve over and over and inward on itself tearing the most minute particles asunder
and kneading the dough thoroughly and perfectly, thus rendering it very fine grained
the bread made therefrom being short and light. After the dough has been kneaded
sufficiently it passes out underneath through the space between the metal plate E and
the roller F and according to the space is formed into a sheet of dough. The scraper J
scrapes off any dough adhering to the roller F, so that the latter always presents a
smooth surface to the dough in the hopper.
In order to agitate the dough in the hopper, and to clean the plate E, I employ
a sheet metal plate S which is manipulated by the operator who takes hold of its
upper end.

page_text: Having now particularly described and ascertained the nature of the said Inven-
tion and in what manner the same is to be performed, I declare that what I
claim is ;-
1. In a dough kneading machine, the combination, with a frame open at top and
bottom, of a roller journaled therein, a partition held in the frame in front of the
roller, an adjustable plate held on the said partition and having its lower end
projecting below the said partition, and a front board secured between the ends of
the said frame and extending with its lower edge onto the rim of the said roller,
substantially as shewn and described.
2. In a dough kneading machine, the combination, with a frame open at top and
bottom, of a roller journaled therein, a partition held in the frame in front of the
roller, an adjustable plate held on the said partition and having its lower end
projecting below the said partition, a front board secured between the ends of the
said frame and extending with its lower edge onto the rim of the said roller, and a
scraper held on the under side of the said roller, substantially as shown and
described.
3. In a
dough-kneading machine, the combination, with a frame provided with
end and cross pieces, of a roller journaled in the said frame, blocks held on top of
the roller trunnions, and a front board pivoted between the said ends and on which
the said blocks are pivoted, substantially as shewn and described.
4. In a dough-kneading machine, the combination, with a frame provided with
end and cross-pieces, of a roller journaled in the said frame, blocks held on top of the
roller trunnions, a front board pivoted between the said ends and on which the said
blocks are pivoted, and means, substantially as described, for locking the said blocks
and front board in place, as set forth.
5. In a dough kneading machine, the combination, with a frame provided with end
and cross pieces and open at the top and bottom, of a transversely-inclined partition
held between the said ends, a metallic plate held in front of the said partition, a
roller journaled in the said ends, and a front board pivoted between the said sides
and extending with its lower edge to the said roller, substantially as shewn and
described.
6. In a dough kneading machine, the combination, with a frame provided with
end and cross pieces and open at the top and bottom, of a transversely-inclined
partition held between the said ends, a metallic plate held in front of the said
partition, a roller journaled in the said ends, a front board pivoted between the said
ends and extending with its lower edge to the said roller, and a scraper held on the
underside of the said ends and in contact with the lower part of the said roller,
substantially as shewn and described.
7. In a dough kneading machine, the combination, with a frame provided with
end and cross-pieces and open at the top and bottom, of a transversely-inclined
partition held between the said ends, a metallic plate held in front of the said
partition, a roller journaled in the said ends, a front board pivoted between the said
ends and extending with its lower edge to the said roller, a scraper held on the
underside of the said ends and in contact with the lower part of the said roller, and
blocks pivoted on the said front board and fitting into recesses in the said ends to
hold the roller in place, substantially as shewn and described.
8. In a dough-kneading machine, the combination, with a frame provided with
end and cross pieces and open at the top and bottom, of a transversely-inclined
partition held between the said ends, a metallic plate held in front of the said partition,
a roller journaled in the said ends, a front board pivoted between the said ends and
extending with its lower edge to the said roller, a scraper held on the underside of
the said ends and in contact with the lower part of the said roller, blocks pivoted on
the said front board and fitting into recesses on the said ends to hold the roller in
place, and hooks held on the said blocks and adapted to be hooked on pins on the
said ends, substantially as shewn and described.

page_text: 9. In a dough kneading machine, the combination, with a frame and a roller
journaled therein, of a crank arın secured on one of the trunnions of the said
roller. and provided with crossing slots and a crank handle provided with a
projection adapted to engage one of the said crossing slots, substantially as shewn
and described.
10. In a dough kneading machine, the combination, with a frame and a roller
journaled therein, of a crank arm secured on one of the trunnions of the said roller,
and provided with crossing slots, a crank handle provided with a projection adapted
to engage one of the said crossing slots, and a hook formed on one end of the said
projection, substantially as shewn and described.
11 In a dough-kneading machine, the combination, with a crank arm secured to
the roller trunnion and provided with slots crossing each other at right angles, of
a crank handle provided with a projection adapted to engage one of the said slots,
substantially as shewn and described.
12. In a dough-kneading machine, the combination, with a crank arm secured
to the roller trunnion and provided with slots crossing each other at right angles,
of a crank handle provided with a projection adapted to engage one of the said
slots, and a hook formed on one end of the said projection to engage the back of
the said crank arm, substantially as shewn and described.
13. In a dough kneading machine, the combination, with a frame, and a roller
journaled therein having one of its trunnions provided with a conical offset having
longitudinal recesses F³, of a crank arm provided with crossing slots and with
ribs K, substantially as shewn and described.
KURTA
April
B. H. MELENDY.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.