Kneading Dough or similar Purposes.
Year: 1886

page_text: Kneading Dough or similar Purposes.
We, JOSEPH ALLEN BAKER, and WILLIAM KING BAKER, both of 58 City Road,
in the County of Middlesex, 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 relates to mixing or kneading apparatus in which the tub remains
stationary and the kneading arms rise and fall and our Improvements relate
principally to the method of and apparatus for imparting simultaneously to the
kneading arms the necessary rotary and rising or falling motion without suspending
the motion of the main driving shaft.
In the accompanying Drawings
Figure 1 represents a front elevation of our Improved machine with kneading.
arms raised. Figure 2 a plan thereof. Figure 3 a side elevation with kneading
arms lowered. Figure 4 a back elevation shewing driving apparatus. Figure 5 a
modification of Figure 4. Figure 6 sectional plan taken through line ab of
Figure 2. Figure 7 sectional plan through line c d of Figure 4 and Figure 8 plan
of Figure 5.
A is the tub or mixing receptacle which is mounted on a carriage A¹ provided
with wheels A. Whilst the kneading is going-on the tub is held in its proper
position by the strap A³ which is hinged at A* and secured around the tub by
the pin A³.
B are the kneading arms mounted on the vertical shafts B¹, B', which shafts are
supported by a bracket C mounted on a vertical dovetailed slide bed D formed on
the principal frame D¹.
The necessary rising, falling and revolving movements are imparted to the arms B
and shafts B1 and B' as follows:
E is the main driving shaft on which are mounted the fast and loose pullies E¹
and E also a spur wheel E³ and a bevel wheel E*, the latter gearing with another
bevil wheel E in which is a key sliding in a slot BS in the shaft B¹. The shaft B¹.
thus derives its revolving motion from the main driving shaft through the bevil
wheels E and E. Parallel to the driving shaft E is a similar shaft F carrying a
spur wheel F and a bevil wheel F³ the latter gearing with a bevil wheel F³ on
the vertical shaft B³ the wheel F³ having a key which slides in a slot in the shaft
to which it imparts rotation. It will be seen by following the direction of the
wheels as indicated by the arrow thereon that both shafts move in the same
direction so that as the arms B approach each other those on one shaft move in a
direction contrary to those on the other.
The mechanism for imparting the rising and falling motion to the kneading
arms B consists of a screw G which passes through a nut in the bracket C.

page_text: The screw is supported between the framework at Gand a lug attached to or
forming part thereof at G³. The lower end of the screw shaft passes through the
lug Gand carries a bevil wheel H which gears with another bevil wheel H
mounted on a shaft J on the other end of which is a spur wheel J¹ and a friction
roller J fast together. On a stud K fixed in a boss K₁ formed on the framework
is placed an eccentric sleeve L, running loose on which are a belt pulley M which
receives motion from pulley M¹ on the driving shaft and a friction roller M2 which
is fast to the pulley M. On a stud N carried by the framework are mounted a
toothed wheel N¹ and a friction roller N³ fast together. By means of the handle L'
on the eccentric sleeve L the friction roller M³ may be caused to bear upon either
the friction roller J* or the friction roller N. In either case the screw G will be
caused to revolve in one direction or the other and thereby either raise or lower
the bracket C and with it the arms B and shaft B1 and B2 the weight of these last
mentioned parts being counterbalanced by weight O attached to a chain O¹ which
passes over a pulley O³ and is connected with the bracket C at C. Figure 5
shows a modification of the apparatus shewn in Figure 4. In this case the belt
pulley M is mounted loosely on a stud P and gives motion to a pinion P¹. On the
stud P is fulcrummed a three armed lever S one arm S₁ of which serves as a handle
whilst the other two carry studs S2 and S3 on one of which are mounted the
toothed wheel T and friction roller T¹ fast together and on the other the toothed
wheel T and friction roller T3 also fast together; the shaft J carries a friction
roller T. Motion is communicated from the pinion P¹ to the toothed wheel T and
by the latter to the toothed wheel T. By raising or depressing the arm S¹ either
of the friction rollers T¹ or T³ may be placed in contact with the roller T thereby
imparting motion to it in one direction or the other. If desirable the friction
rollers may be grooved around their peripheries as shewn in Figure 9. It will be
observed that by using friction rollers for imparting motion from the main driving
shaft E to the shaft J the direction of the latter may be changed whilst the former
is in motion thus saving time and trouble every time the inixing tub has to be
changed.
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 a machine for mixing or kneading dough or the like the combination of
friction wheels such as J' M³ N' spur gearing such as J¹ N¹ eccentric and lever
such as L and L' and bevel gearing such as H and H for imparting motion in
either direction to the screw G without arresting the motion of the main drying
shaft E substantially as herein specified and illustrated in Figures 3, 4, and 7, of
the accompanying drawings.
2. In a machine for mixing or kneading dough or the like the modification of
the above combination shown in Figures 5 and 8 of the accompanying drawings
and consisting of pinion P¹ lever S spur wheels T, T2, and friction rollers T¹ T³
and T' the whole constructed and operating substantially as specified.
3. The complete machine for mixing or kneading dough or similar materials
constructed and operating substantially as specified and illustrated by the accom-
panying drawings.