An Improved Appliance for Stirring Foods in the Operation of Cooking.
Year: 1889

page_text: Date of Application, 30th May, 1889
Complete Specification Left, 28th Feb., 1890-Accepted, 5th Apr.. 189C
PROVISIONAL SPECIFICATION.
An Improved Appliance for Stirring Foods in the Operation of
Cooking.
We, GEORGE WHITE HASKINS, of 33, Banner Street; E.C. Blind and Shutter
Maker, and SAMUEL RALFS LEACH, of 113, Malvern Road, West Kilburn, Iron-
monger, do hereby declare the nature of this invention to be as follows:-
Our Invention relates to an appliance for performing mechanically the operation of
stirring food in cooking. The appliance is especially designed for stirring custards,
blanc-manges, sauces, and curries, as well as melted butter, porridge, gruel, and other
similar foods, in which, by reason of their semi-liquid consistency, the transmission of
heat by convection is comparatively slow and which therefore require to be continually
stirred whilst being boiled, in order to prevent burning and ensure a uniform degree
of cooking throughout the mass as well as to ensure a uniform consistency and prevent
their getting lumpy.
This mechanical stirring appliance which is adapted to be fitted to saucepans or
other cooking vessels of various shapes and sizes, comprises a motor consisting of a
spring barrel and train of wheels contained in a suitable casing and applied to drive
a vertical spindle projecting from the underside of the casing and provided with
stirring blades. The casing is provided with adjustable clips or other means of attach-
ment whereby it may be securely fixed upon the top of the cooking vessel, the
attachments being adaptable to vessels of various sizes. The stirrer spindle
projects down into the cooking vessel and is preferably made in two parts with
capability of longitudinal adjustment, in order that it may be adapted to the depth
of the vessel and take a bearing by its lower extremity upon the bottom thereof
and also enable it to be removed for cleaning.
Dated this 30th day of May 1889.
COMPLETE SPECIFICATION.
An Improved Appliance for Stirring Foods in the Operation of
Cooking.
We, SAMUEL RALFS LEACH of 113, Malvern Road, West Kilburn, Ironmonger,
and GEORGE WHITE HASKINS, of 33 Banner Street E.C. Blind and Shutter
Maker 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:-
Our Invention relates to an appliance for performing mechanically the operation of
stirring food in the operation of cooking. The appliance is especially designed for
stirring custards, blancmanges, sauces, curries, as well as melted butter, porridge,
gruel, and other similar foods, in which, by reason of their semi-liquid consistency, the
transmission of heat by convection is comparatively slow, and which therefore require
to be continually stirred whilst being boiled, in order to prevent burning and ensure a
uniform degree of cooking and a uniform smooth consistency throughout the mass.
This mechanical stirring appliance is adapted to be fitted to saucepans or other cooking
vessels of various shapes and sizes.
It is illustrated in the accompanying drawings, forming part of this specification,
wherein figure 1 represents a vertical section, and figure 2 a plan, of the apparatus in
A

page_text: horizontal section through the clockwork. The same letters of reference indicate like
parts in both figures.
The stirring appliance comprises a motor consisting of a spring barrel A and train
of wheels and pinions 1, 2, 3, 4, 5, 6, 7, 8, 9, controlled by a fan 10 and contained in
a suitable casing B, the train being applied to drive a vertical spindle C projecting
from the underside of the casing and provided with stirring blades D. The casing B
is provided with arms E adapted to clip or rest on the top edge of the cooking
vessel F, the arms being notched so as to fit on vessels of various sizes. The
spring is hooked at its outer end to the casing and at the inner end to the
spindle a provided with a winding handle and having fast upon it the ratchet
wheel 1 with which engages the spring pawl 2 on the wheel 3. The spindle C
is a continuation of the spindle of the wheel and pinion 4, 5. It projects down
into the cooking vessel and the tubular boss to which the blades D are fixed is of
square section adapted to fit loosely on the spindle C which is also square the
lower end of the boss resting always on the bottom of the cooking vessel, this capa-
bility of adjustment adapting the stirrer to the depth of the vessel and ensuring the
stirring of the portions of the food which are close to the bottom of the vessel and
therefore most liable to be overcooked or burnt, besides enabling the stirrer to be
removed for cleaning. h is a screw stop for preventing the rotation of the fan when
it is desired to stop the stirrer. The stirrer blades are made of sheets of metal partially
stamped out to form louvre-like deflectors d, the direction of motion being such as to
cause an upward, as well as a rotary, circulation of the semi-fluid matters.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, we declare that what
we claim is ;-
The herein described mechanical stirring appliance consisting of a spring actuated
train contained in a frame adapted to rest on a cooking vessel in combination with
stirrer blades or arms fitted adjustably to their spindle and adapted to be rotated in
the cooking vessel, substantially as specified.
Dated this 26th day of герглаrv X90
Dated MUIS 20LD day or teornary (X90
:
G. W. HASKINS.
S. R. LEACH.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.