An Improved Doughing Machine.
Year: 1898

page_text: Date of Application, 26th Sept., 1898
Complete Specification Left, 26th June, 1899-Accepted, 12th Aug., 1899
I, DAVID DOIG, of 44, High Street, Kirriemuir, in the County of Forfar, North
Britain, Baker, do hereby declare the nature of this invention to be as follows:-
-
This invention relates to an improved doughing machine for bakers' and
others use and has for its object to simplify the construction of the machine
whilst at the same time maintaining or increasing the efficiency in the mixing
of the ingredients.
As an example of the method of carrying out my invention I employ a suitable
frame having two uprights or standards formed or provided with bearings to
receive the spindle supporting the drum or casing into which the ingredients
are introduced.
Situated within the drum or casing are two pair of blades, one pair rotating
with the shaft or spindle which passes through and supports the drum whilst
the second pair is mounted upon a spindle working in bearings formed in the
drum. One of each of the said pair of blades is arranged parallel to the shaft
or spindle and the other at an angle thereto, the one inclining to the right side
of the drum and the other to the left, the arrangement being such that the dough
is first taken to one side of the drum and then to the other. The shaft carrying
the upper pair of blades does not engage with the outer framing but only pro-
trudes sufficiently far to enable it to be geared with the lower shaft or spindle
by spur wheels or pinions, thus allowing the drum to be inverted or tilted to
allow the contents to be removed. When in operation the one pair of blades
is at right angles to the other, rotating in opposite directions.
I have described the foregoing as an example but I desire it to be understood
that I do not limit myself to the precise details therein referred to as it is
obvious that they may be varied to suit different requirements without departing
from the scope of my invention.
An Improved Doughing Machine.
I, DAVID DOIG, of 44, High Street, Kirriemuir, in the County of Forfar, North
Britain, Baker, do hereby declare the nature of this invention and. in what
manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
This invention relates to an improved doughing machine for bakers' and
others use and has for its object to simplify the construction of the machine
whilst at the same time maintaining or increasing the efficiency in- the mixing
of the ingredients.

page_text: And in order that my said invention may be readily understood and easily
carried into effect I have hereunto appended an explanatory sheet of drawings
in which
Fig. 1 is an elevation
Fig. 2 a plan and
Fig. 3 an end view, all partly in section, of my improved machine.
Referring to the said drawings I may employ a frame of any suitable form
having two uprights or standards A formed or provided with bearings to receive
the spindle B supporting the drum or casing C into which the ingredients to
be mixed are introduced.
Situated within the said drum or casing C are two pair of blades D D¹ the
one pair D rotating with the shaft or spindle B whilst the second pair is mounted
upon a spindle E working in bearings formed in the end walls of the drum.
One of each of the said pair of blades is arranged parallel to the shaft or spindle
and the other at an angle thereto as shewn, the one inclining to the right side
of the drum and the other to the left, the arrangement being such that the dough
is first taken to one side of the drum and then to the other. The shaft E
carrying the upper pair of blades D' does not engage with the outer framing
but only protrudes sufficiently far to enable it to be geared with the lower shaft
or spindle by the spur wheels or pinions F, thus allowing the drum to be
inverted or tilted to allow the contents to be removed. When in operation the
one pair of blades is at right angles to the other, rotating in opposite directions
and in order that they may work nearer each others centres so as to obtain a
better hold of the dough and shorten the operation, I prefer to form the three
ends of each pair of blades with a checked out portion, or break as shewn, so
that they can pass over the bars retaining the blades where they cut each others
path. A fillet f is fitted to the inside of the drum to clear or remove the dough
from the breaks thus formed in the blades. The drum may be retained in its
normal or upright position, when in use, by any convenient catch arrangement.
The spindle B may be rotated by hand through the intervention of a cranked
handle or similar means; or may be fitted with a pulley and driven by any
convenient mechanical power.
I have described the foregoing as an example-but I desire it to be understood
that I do not limit myself to the precise details therein referred to as it is
obvious that they may be varied to suit different requirements without departing
from the scope of my invention.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:
1. The general arrangement, construction and combination of parts constituting
my improved doughing machine, substantially as hereinbefore described and
shewn in the accompanying drawings.
2. In a doughing machine, the combination of the drum C carried pivotally
upon a horizontal rotating shaft, with the blades D, D¹ arranged at right angles
to cach other therein and driven in opposite directions from the aforesaid hori-
zontal shaft by external pinions, substantially in the manner as herein before
described and shewn in the accompanying drawings.
3. The construction and formation of the blades D D¹, substantially as and for
the purposes hereinbefore described and shewn in the accompanying drawings.
Doted this 24th day of June 1899
JOHNSONS,
Applicant's Agents,
115, St. Vincent Street, Glasgow.