Year: 1896

page_text: I, WILLIAM HENRY PANNELL of 13 and 14 Basinghall Street in the City of
London, Chartered Accountant, do hereby declare the nature of this invention to be
as follows:-
The invention relates to an automatic stirrer for culinary purposes.
In the process of cooking sauce or the like it is necessary to constantly stir the
material in order to prevent the same burning, and for other reasons, and this stirring
operation as is well known, extends over considerable periods and is very tedious and
troublesome, and up to the present time this operation has been performed by hand
and without the assistance of any mechanical or labour-saving device.
Now the object of the present invention is to obtain an instrument which will
entirely obviate the necessity for stirring by hand, and which at the same time will
be applicable to saucepans or like vessels of various sizes.
In carrying the invention into effect a box or case is employed which is preferably
airtight or approximately so, and within this box or case is arranged a powerful
spring adapted to be wound up or compressed by a suitable key, and this spring
gives motion to a train of toothed gearing furnished with a fly or other suitable
regulating device.
The last one of the train of wheels gives motion to the upper end of a spindle
mounted in bearings' in the spring box or case, and upon the lower end of which
spindle is fixed a suitable stirring device, such for example as several blades, or wire
or ribbon loops which if desired are made telescopic or adjustable to the diameter
and depth of the saucepan or other utensil in connection with which the instrument
is for the time being intended to be used.
The spring box or case is provided with telescopic or extensible arms at the ends
forked or provided with clamps by the aid of which the instrument may be mounted
upon or be clamped to the rim of a saucepan or other utensil in such manner that
the spindle and stirrer will descend into the saucepan in a suitable position for
stirring the contents.
By the aid of this device the necessity for stirring by hand is entirely dispensed
with, and a vessel containing a sauce or other material requiring constant stirring may
be left entirely without attention during the cooking operation.
Dated this 4th day of September 1896
WHITE & WOODINGTON,
27 Southampton Buildings, London, Agents.

page_text: I, WILLIAM HENRY PANNELL, of 13 and 14 Basinghall Street, in the City of
London, Chartered Accountant, 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 invention relates to an automatic stirrer for culinary purposes.
In the process of cooking sauce or the like it is necessary to constantly stir the
material in order to prevent the same burning and for other reasons, and this stirring
operation as is well known, extends over considerable periods and is very tedious and
troublesome and up to the present time this operation has been performed by hand
and without the assistance of any mechanical or labour-saving device.
Now the object of the present invention is to obtain an instrument which will
entirely obviate the necessity for stirring by hand and which at the same time will be
applicable to saucepans or like vessels of various sizes.
In carrying the invention into effect a box or case is employed which is preferably
air tight or approximately so and within this box or case is arranged a powerful
spring adapted to be wound up or compressed by a suitable key and this spring gives
motion to a train of tooth gearing furnished with a fly or other suitable regulating
device.
One of the train of wheels gives motion to the upper end of a spindle mounted in
bearings in the spring box or case, and upon the lower end of which spindle is fixed
a suitable stirring device such for example as several blades, or wire or ribbon loops
which if desired are made telescopic or adjustable to the diameter and depth of the
saucepan or other utensil in connection with which the instrument is for the time
being intended to be used.
The spring box or case is provided with telescopic or extensible or non-extensible
arms or feet at the ends forked or provided with clamps or distance pieces by the aid
of which the instrument may be mounted upon or be clamped to the rim of a
saucepan or other utensil in such manner that the spindle and stirrer will descend
into the saucepan in a suitable position for stirring the contents.
And in order that the said invention may be more clearly understood and readily
carried into effect, I will proceed aided by the accompanying drawings more fully to
describe the same.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is an elevation of an instrument constructed according to the present
invention.
Figure 2 is a plan thereof with the cover of the box or case removed.
Figure 3 is a vertical section thereof taken on the line 1-1 of Figure 1.
Figure 4 is a side view of the stirrer separately with part broken away.
Figure 5 is an end view thereof.
Figure 6 is a similar view to Figure 4 but representing part thereof.
Figure 7 is a plan thereof.
Figure 8 is a side elevation of the clock work mechanism separately.
Figure 9 is a similar view taken at right angles to Figure 8.
Figure 10 is a horizontal section taken on the line 1-1 of Figure 9.
Figure 11 is a vertical section showing the first motion wheel and adjacent parts,
and,
Figure 12 is an underside view partly in section of the first motion wheel and
connected parts.

page_text: In the several figures in which like parts are indicated by similar letters of
reference Figures 4 to 7 and 11 and 12 are drawn to an increased scale with respect
to the other figures of the drawings.
a represents a box or case which is preferably air tight or approximately so and
within this box or case is arranged a powerful spring c which is enclosed within a
stationary box b, and one end of this spring c is fixed to the box b whilst the other
end thereof is fixed to the hollow shaft or arbor c¹ which is formed with reduced ends
mounted with capability of revolution in bearings 6 provided in the top and bottom
plates 61 62 of the spring box b.
Upon the upper part of the shaft c¹ above the top plate of the spring box 6 is
loosely mounted the first motion wheel c³ which is fixed with the shaft or arbor c¹ in
the running down of the spring c in the manner hereinafter described, and this
wheel gears with a pinion fixed upon a revolving shaft et at its lower end
mounted in the top plate 61 of the spring box b and at its upper end in a plate b
carried by pillars from the top plate b
The shaft or spindle c' has fixed upon the upper end thereof a toothed wheel c³
which gears with a pinion d¹ fixed upon the upper end of the main shaft d of the
stirring apparatus and which latter is mounted with capability of independent
revolution in the hollow of the shaft or arbor c¹ and conveys motion to the stirring
device as hereinafter described.
Upon the shaft or spindle c is fixed a toothed wheel co similar to that c' which
gears with a pinion c² fixed upon a shaft or spindle c8 upon which is also fixed a
toothed wheel e' which gears with a pinion el fixed upon a shaft or spindle c" upon
which is also fixed a toothed wheel c which gears with a pinion el fixed upon a
shaft or spindle e upon the upper end of which is fixed a bar cs at its ends carrying
vanes e inounted upon axes e with capability of turning for adjustment and together
constituting a fly or regulator for the clockwork mechanisın.
The spring is wound up or compressed at the times desired by means of a key or
handle fixed upon a horizontal shaft mounted with capability of revolution and
endway movement in bearings a formed in brackets a¹ a carried by the underside
of the box or case a and upon the inner end of which shaft f¹ is fixed a bevelled
wheel which gears with the corresponding wheel c fixed upon the lower end of
the hollow shaft or arbor c².
In order to prevent motion being given through the train of wheels to the stirrer
shaft d in the winding up of the spring c the first motion wheel c2 is at that time
fixed with the hollow shaft or arbor cl by means of a ratchet wheel cl fixed with the
hollow shaft or arbor c' and spring pawls c carried by the underside of the first
motion wheel c whilst in order to disengage the bevelled wheel of the winding
shaft f from the bevelled wheel c of the hollow shaft or arbor c' in the running
down of the spring e the shaft is as hereinbefore described mounted with capability
of slight end-way movement so that it may after the winding of the spring c be shifted
into the position indicated by the dotted lines in Figure 1 and out of gear with the
apparatus.
Upon the lower end of the main shaft or spindle d is fixed a stirring device e of any
suitable construction.
In the example given in the drawings this stirring device consists of a tubular
shafte which telescopically receives the spindle or shaft d and is fixed therewith in
any suitable position by means of a set screw e' and this hollow shaft e' at its lower
end is formed with a boss e transversely perforated to receive a horizontal hollow
split bar e' which is adapted to be fixed with the boss e of the shaft e' in any suitable.
position by means of a set screw e30.
Upon the cross bar e2 are mounted by their upper tubular parts e¹ with
capability of sliding and turning for adjustment several perforated plates or
blades e provided with set screws e by means of which they may be fixed
n the desired position with relation to the horizontal bar e² whilst in order that
he stirrer composed of the blades e may be laterally expanded or contracted
it will the meeting tubular upper parts el of adjacent blades or plates e are at el**

page_text: notched or cut away as indicated more particularly at Figures 6 and 7 so that the
blades or plates e may be caused to overlap each other and thus admit of the area and
lateral extent of the stirrer e being regulated according to the work to be done and
the diameter of the saucepan or other vessel g in connection with which the
instrument is for the time being intended to be used whilst the telescopic fitting of
the shaft e with the spindle d herein before described admits of the vertical
adjustment of the stirrer e and consequent regulation according to the depth of such
vessel.
In order to provide for the further lateral extension of the stirrer e the bar e2 is
fitted with a rod e* which may be extended on one side of the spindle d to carry
some of the plates or blades e whilst the bar e2 is extended on the other side thereof
for the same purpose the bar e2 and rod e2 heing firmly held by the boss e and set
screw 3 at such time the split in the bar e permitting the necessary compression of
the latter for that purpose.
The spring box or case a is provided with legs a furnished with feet, which take
a bearing upon the rim of the saucepan or vessel g and upon the feet a' are loosely
mounted distance pieces a provided with set screws a" by the aid of which the
distance pieces as are adapted to be fixed in any suitable position upon the feet a*
according to the diameter of the saucepan or vessel g in order to hold the mechanism
in a central position with relation thereto.
Or the box or case a might be fixed with the saucepan or vessel g by means of
clamps or in any other suitable manner as will be readily understood. By the aid of
the device herein before described the necessity for stirring by hand is entirely
dispensed with and a vessel containing sauce or other material requiring constant
stirring may be left entirely without attention during the cooking operation.
ascertained the nature of the said
Having now particularly described and
invention and in what manner the same is to be performed I declare that what I
claim is :-
1. In an automatic stirrer the combination of an air tight box or case, a clockwork
motor within the box, an adjustable speed regulator upon the exterior of the box
carried by one of the spindles of the motor, feet or rests carried by the box adjustable
means carried by the feet for securing the box in correct position over a saucepan or
other vessel a central shaft driven by the motor and extending downwardly so as to
enter the vessel and a suitable stirrer fixed upon the lower end of the shaft
substantially as herein shown and described.
2. In an automatic stirrer the combination of an air tight box or case, a clockwork
motor within the box, an adjustable speed regulator upon the exterior of the box
carried by one of the spindles of the motor, feet or rests carried by the box adjustable
means carried by the feet for securing the box in correct position over a sauce pan or
other vessel, a central shaft driven by the motor and extending downwardly so
as to enter the vessel and a stirrer mounted on said shaft and formed of several plates
adjustable to the diameter and depth of the vessel substantially as herein shown and
described.
Dated this 4th day of June 1897.
WHITE & WOODINGTON,
27 Southampton Buildings, London, Agents.