Improvements in Cocoa Urns or Containers.
Year: 1891

page_text: Date of Application, 3rd June, 1891
Complete Specification Left, 3rd Feb., 1892-Accepted, 12th Mar., 1892
PROVISIONAL SPECIFICATION.
Improvements in Cocoa Urns or Containers.
We RICHARD CADBURY and GEORGE CADBURY trading as Cadbury Bros. of
Bournville near Birmingham, Cocoa and Chocolate Manufacturers and HARRY
GEORGE GEAR of Bournbrook Farm, Stirchley Street near Birmingham,
Commercial Traveller do hereby declare the nature of this invention to be as
follows: :―
The said invention has for its object to keep cocoa when prepared for drinking
and stored in urns or containers thoroughly mixed or constantly in motion so that
the particles of cocoa held in suspension in the liquid shall not settle or fall to the
bottom of the urn or container, the beverage being thus always maintained in a
fit condition for drinking when drawn off and its drawing off from the urn not
impeded.
We effect this object by the construction and combination of parts hereinafter
described which construction and combination of parts may be readily applied to
existing cocoa urns or containers.
We use a water jacket urn of the ordinary kind with porcelain interior or other-
wise and in the axis thereof we support a vertical shaft or spindle which carries
near its bottom a fan or series of radial arms by the slow rotation of which, effected
in the manner hereinafter described, the liquid contents of the urn are thoroughly
mixed or kept constantly in motion for the purpose hereinbefore mentioned. The
said vertical fan spindle is pointed at bottom and works in a bearing or seat at the
middle of the bottom of the urn and is supported near its top in a bearing carried
by a ring or collar having radial arms which ring or collar is fixed to the top of the
urn. The top of the fan spindle projects a short distance above the said supporting.
ring or collar. The spindle of the fan or arms in the urn is slowly driven by spring
clock work mechanism situated within the lid or cover of the urn, the driving spindle
of the said clock work mechanism being so arranged that the placing of the lid or
cover on the urn couples it with the fan spindle and the removal of the lid from the
urn uncouples it from the said fan spindle. The driving spindle of the clock work
mechanism in the lid is situated axially and in line with the fan spindle in the urn
and the coupling by which the two spindles are coupled and uncoupled consists of a
trough shaped bar on the bottom of the clock work driving spindle and a cross bar
or cross head on the top of the fan spindle, the said trough shaped bar on the
driving spindle fitting closely upon or engaging by a vertical motion with the cross
bar or head of the fan spindle so that on the rotation of the former the latter is
carried with it and a slow rotary motion communicated to the fan spindle and the
liquid contents of the urn thereby kept constantly in motion and thoroughly mixed
ready to be drawn off for drinking.
The driving mechanism within the lid of the urn is furnished with stopping and
starting attachment operated from the outside or inside of the lid. Or the starting
and stopping may be automatic, that is, on the putting of the lid or cover on
the urn it liberates the driving mechanism and on lifting the lid the driving
mechanism is stopped.
We do not limit ourselves to the particular kind of coupling described as other
similar couplings may be employed which on the placing of the lid on the urn
connects the driving spindle of the clock work mechanism with the fan spindle and
permits of the removal of the lid without interfering with the fan in the body of
the urn.
W. T. WHITEMAN,
Agent for the Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Cocoa Urns or Containers.
We, RICHARD CADBURY, and GEORGE CADBURY, trading as. Cadbury Bros.
of Bournville near Birmingham, Cocoa and Chocolate Manufacturers, and HARRY
GEORGE GEAR, of Bournbrook Farm, Stirchley Street, near Birmingham,
Commercial Traveller, do hereby declare the nature of the said invention
and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement :-
.The said invention has for its object to keep cocoa when prepared for drinking
and stored in urns or containers thoroughly mixed or constantly in motion so that
the particles of cocoa held in suspension in the liquid shall not settle or fall to the
bottom of the urn or container, the beverage being thus always maintained in a
fit condition for drinking when drawn off and its drawing off from the urn not
impeded.
We effect this object by the construction and combination of parts hereinafter
described, which construction and combination of parts may be readily applied to
existing cocoa urns or containers.
We use a water jacket urn of the ordinary kind with porcelain interior or other-
wise and in the axis thereof we support a vertical shaft or spindle which carries
near its bottom a fan or series of radial arms by the slow rotation of which, effected
in the manner hereinafter described the liquid contents of the urn are thoroughly
mixed or kept constantly in motion for the purpose herein before mentioned.
The said vertical fan spindle is pointed at bottom and works in a bearing or
seat at the middle of the bottom of the urn, and is supported near its top in a
bearing carried by a ring or collar having radial arms which ring or collar is
fixed to the top of the urn. The top of the fan spindle projects a short distance
above the said supporting ring or collar. The spindle of the fan or arms in the
urn is slowly driven by spring clock work mechanism situated within the lid or
cover of the urn, the driving spindle of the said clock work mechanism being so
arranged that the placing of the lid or cover on the urn couples with the fan
spindle and the removal of the lid from the urn uncouples it from the said fan
spindle. The driving spindle of the clock work mechanism in the lid is situated a
axially and in line with the fan spindle in the urn and the coupling by which the
two spindles are coupled and uncoupled consists of a trough shaped bar on the bottom
of the clockwork driving spindle and a cross bar or cross head on the top of the
fan spindle, the said trough shaped bar on the driving spindle fitting closely upon
or engaging by a vertical motion with the cross bar or head of the fan spindle so
that on the rotation of the former the latter is carried with it and a slow rotatory
motion communicated to the fan spindle and the liquid contents of the ru
thereby kept constantly in motion and thoroughly mixed ready to be drawn off
for drinking.
The trough shaped bar on the driving spindle may be replaced by a cross 4
bar having pins or studs at opposite ends for engaging with the cross bar of the
fan spindle.
The driving mechanism within the lid of the urn is furnished with stopping and
starting attachment operated from the outside or inside of the lid. Or the
starting and stopping may be automatic, that is, on the putting of the lid or 4
cover on the urn it liberates the driving mechanisin and on lifting the lid the driving
mechanism is stopped.
We will now proceed to describe with reference to the accompanying drawings
the manner in which the said invention is to be performed.
Figure 1 represents partly in vertical section and partly in elevation, à water 5
jacket cocoa urn or container to which the said invention is applied; ·

page_text: igure 2 represents in elevation partly in section and Figure 3 in plan the fan 'or
radial arms of the urn detached together with the ring or collar carrying the top
bearing of the fan spindle;
Figure 4 represents in vertical section and Figure 5 in horizontal section, taken
on the line Figure 4, the lid of the urn containing the driving and coupling
mechanism the coupling parts being represented ready to be coupled to the fan
spindle;
Figure 6 represents in vertical section and Figure 7 in plan of underside the said
lid and driving and coupling mechanism, the said driving mechanism being coupled
with the fan spindle.
The said Figures 4, 5, 6 and 7 are drawn to a larger scale than Figures 1, 2 and 3.
The same letters of reference indicate the same parts in the several figures of
the drawings.
a is the porcelain interior of the urn and is the water jacket of the same; c is.
the fan or series of radial arms working near the bottom of the urn. This fan 'is
carried by the vertical spindle d to which a slow rotation is given. The bottom of
the spindle is pointed and supported in the bottom bearing d and the said spindle is
supported near its top in the bearing at the middle of the ring or collar d' resting
on the top or flange of the porcelain interior a of the urn as represented in Figure 1.
By means of the said ring or collar d the fan and its spindle can be lifted from or
replaced in the urn. On the top of the fan spindle d is a cross bar or cross head e
by which it can be coupled with and uncoupled from the clock-work driving
mechanism within the lid or cover p. The said clock-work driving mechanism
consists of the ordinary spring or going barrel having the winding up spindle
or arbor. The rotary motion of the spring barrel is transmitted to the axial
driving spindle h situated in line with the fan spindle d in the following manner.
The toothed wheel on the spring barrel fgears with a pinion and the toothed
wheel on the top of the spindle of the pinion gears with a pinion on the
parallel axis carrying the toothed wheel. The said toothed wheel gears with
the pinion on the top of the driving spindle h working in a long bearing on the
supporting plate g of the clock-work mechanism. The bottom of the driving
spindle carries the cross bar having at its ends and at opposite sides of the
middle line, studs k, & for engaging with and coupling the driving spindle / with
the cross head or bar e of the fan spindle d.
By the arrangement of parts represented, the driving spindle of the clock work
mechanism is on the placing of the lid or cover on the urn, coupled with or ready
to be coupled with, the fan spindle d. This will be best understood by referring
to the enlarged views Figures 6 and 7 where the two spindles are represented
coupled together.
When the lid is placed on the top of the urn, the coupling bar on the driving
spindle crosses the head or bare of the fan spindle as indicated'in dotted lines in
Figure 5. The clock work mechanism having been started, after placing the lid
on the urn, in the manner herein after described, the partial rotation of the cross
bar i of the driving spindle causes its pins kk to engage with opposite sides of the
cross head e of the fan spindle as illustrated in Figures 6 and 7 and thereby couple
the driving spindle h with the fan spindle d. The rotation of the fan spindle d
gives a slow rotation to the fan c and the latter keeps the liquid contents of the
urn thoroughly mixed or constantly in motion so that the particles of cocoa held in
suspension in the liquid shall not settle to the bottom of the urn.
The driving mechanism within the lid p is stopped and started in the following
nanner.
I is a horizontal spindle passing to the outside of the lid p. The inner end of
he spindle carries a screwed head m which works in the fixed screw bar n. In
ront of the screwed head of the regulator is a spring army which by the advance
of the screwed head m can be made to bear against and forcibly press upon and
lock the rim on the spindle of the wheel of the clock work driving mechanism
17.

page_text: as seen in Figures 4 and 5 and thereby either regulate the motion of the said driving
mechanism or stop it. By withdrawing the screwed head m from the spring
arm the latter retires from the rim as seen in Figures 6 and 7 and the clock work
mechanism is started.
7"
Before placing the lid p on the urn, the clock work driving mechanism in the
said lid is wound up and the regulator spindle is so turned as to advance the
screwed head m and cause the spring arm 7 to block the rim and stop the driving
mechanism. After the lid has been placed on the urn and the driving spindle h
coupled with, or ready to be coupled with, the fan spindle d, the regulator spindle /
is withdrawn into the position represented in Figures 6 and 7; the driving
mechanism is thereby started and the fan spindle and fan rotated as before
described.
A spring sliding regulator may be used for stopping and starting the clock work
driving mechanism. In this case the sliding regulator is advanced by a spring and
held out of action when the nicchanism is to be started, by means of a catch of any
desired kind.
Figures 8 and 9 represent in vertical section the arrangement of the said inven-
tion in which the starting and stopping of the driving mechanism is made automatic;
that is, is started on the putting of the lid on the urn and stopped on the removal
of the lid from the urn.
In Figure 8 the lid is represented in the act of being placed on the urn, the
driving mechanism being stopped and in Figure 9 the lid is represented placed on
the urn the driving mechanism being automatically started. A portion of the driving
mechanism is omitted in Figures 8 and 9 for the purpose of better exhibiting the
automatic stopping and starting parts.
On the supporting plate g of the clock work mechanism a starting and stopping
lever s, t is jointed at 2, the said lever having motion in a vertical plane; and on
the spindle of the pinion of the clock work mechanism a disc u is fixed, having
in it two (or more) radial slots. One of these slots is marked u². The inner
euds of the said lever is pressed upwards by a spring, and the said arm by
taking into ene of the radial slots in the disc prevents the rotation of the
said disc and stops the driving mechanism as represented in Figure 8. When the
inner ends of the lever is withdrawn from the slot in the disc the driving
'mechanism is started as represented in Figure 9.
The automatic stopping and starting of the driving mechanism on the putting on
and taking off the lid p is effected in the following manner. Jointed to the outer
end t of the lever s, is a depending arm the outer end of which projects in
-its normal position (see Figure 8) through a slot in the rim of the lid p. When
'the lid P is placed on the urn the end of the depending arm v bearing against the
inner side of the mouth of the urn is pressed inwards thereby raising the said arm
and the outer end of the lever to which it is jointed. The inner ends of the
lever is at the same time withdrawn from the slot in the disc u and the starting of
the driving mechanism thus effected as represented in Figure 9. When the lid is
lifted off the urn the parts take the positions represented in Figure 8 and the
'driving mechanism is stopped; that is, as the bearing end of the depending arm
is removed from the mouth of the urn the inner ends of the lever is lifted by its
compressed spring and made to engage with and stop the rotation of the disc u.
Thus, the driving mechanism is automatically started by the act of putting on the
lid and stopped on removing the lid.
We do not limit ourselves to the particular kind of coupling described and
represented as other similar couplings may be employed which on the placing of
the lid on the urn connects the driving spindle of the clock work mechanism with
the fan spindle and permits of the removal of the lid without interfering with the
fan in the body of the urn; for example in place of the cross bar, having studs at
its ends, fixed on the driving spindle, a trough bar may be made to embrace the
cross head or bare of the fan spindle.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and the manner in which the same is to be performed we declare that we
claim as our invention of "Improvements in cocoa-urns or containers":-
First:-The combination with or adaptation to the body of the cocoa urn or
container of a rotating fan for the purpose described, the said rotating fan being so
supported and arranged that it can be readily placed in and removed from the urn
and is not interfered with by the removal of the lid from the urn substantially as
hereinbefore described and illustrated in the accompanying drawings.
Secondly The combination with or adaptation to the lid of the urn of the
clock-work driving mechanism described and represented, the driving spindle of
the said clock-work mechanism being situated axially in the lid and in line with
the fan spindle in the body of the urn substantially as herein before described and
illustrated in the accompanying drawings.
Thirdly The construction and combination of parts substantially as hercin-
before described and illustrated in the accompanying drawings for coupling the
spindle of the clock work driving mechanism in the lid with the fan spindle in the
body of the urn on placing the said lid on the urn and uncoupling the said two
spindles on the removal of the lid from the urn.
Fourthly-The combination with the clock work driving mechanism in the lid,
of the arrangements of parts for stopping and starting the said clock work driving
mechanism substantially as hereinbefore described and illustrated in Figures 1, 4,
5, 6 and 7 of the accompanying drawings.
Lastly The automatic arrangement or combination of parts herein before
described and illustrated in Figures 8 and 9 of the accompanying drawings for
starting the clock work driving mechanism on the putting of the lid on the urn
and the stopping of the said driving mechanism on the removal of the lid from
the urn.
Dated the First day of February 1892.
.
RICHARD CADBURY.
GEORGE CADBURY.
HARRY GEORGE GEAR.