Improvements in and connected with Means for Rotating Food whilst Cooking, and for Rotating Articles in Shop Windows, and for other like purposes.
Year: 1893

page_text: Date of Application, 23rd Feb., 1893
Complete Specification Left, 23rd Nov., 1893-Accepted, 23rd Dec., 1893
PROVISIONAL SPECIFICATION.
Improvements in and connected with Means for Rotating Food
whilst Cooking, and for Rotating Articles in Shop Windows, and
for other like purposes.
I, THOMAS SMITH, of 36 Halesowen Road, Old Hill, Staffordshire, Watch and
Clock Dealer, do hereby declare the nature of this invention to be as follows:-
This invention consists of the hereindescribed improvements in and connected
with means for rotating food whilst cooking and for rotating articles in shop
windows and for other like purposes and this invention is carried out as
follows:-
I will first describe my invention as applied to causing a dish or tin to revolve
before a fire for the purpose of roasting or otherwise cooking a joint or other food
contained on the dish or tin.
The said dish or tin is preferably of circular form and is carried by a central
vertical spindle underneath this spindle being suitably supported in bearings in the
framework of the driving mechanism hereinafter described and the bottom of the
spindle running in a footstep. This spindle receives slow rotary motion by means
of a clock spring acting upon the spindle through a spur wheel and pinion or
other gearing and the motion of the spindle is controlled by a rotary fan governor
revolving at a high speed and driven through spur gearing or by other means from
the aforesaid spring. The said rotary fan governor consists of a vertical spindle
having hinged thereto two or more vanes which when the spindle is not revolving
hang down vertically. When the spindle and vanes revolve the vanes turn
outwardly from the spindle and present a certain portion of their surfaces
to the resistance of the atmosphere and thus cause the main spindle, on which is
the dish or tin, to revolve slowly. When the main spring is but partly unwound
and causes the governor and main spindle to revolve quicker than their normal
speed the said vanes fly farther out and present a larger surface to the atmosphere
and thus by giving the main spring more work to do they prevent the rotation of
the main spindle being materially increased. Similarly when as the main spring
unwinds and its power to turn the mechanism is decreased the speed of the
governor decreases and the vanes turn down somewhat and by presenting a smaller
area to the resistance of the atmosphere there is less work for the main spring to
do and consequently the speed of the main spindle is but slightly decreased.
Each of the said vanes may have a small spring connecting them to the spindle so
as to cause them to rise and fall evenly. The said main spring can as in a clock
be wound by a key. By means of a sliding or other stop arranged to act upon the
revolving governor or other revolving part of the mechanism the main spindle can
be stopped or started when, required.
The said mechanism is or may be contained within a box or case which has side
flanges or is otherwise formed to rest upon the usual strides or the box or case
may have a stand to rest on the fender or floor or be otherwise supported.
Upon the said revolving tin or dish there may be a tripod or other stand
provided with hooks or other means from which the meat or other article can be
suspended.
At the back of the said dish or tin that is at the side farthest from the fire I
may provide a stationary bonnet or hood of metal which is adapted to stand upon
the strides or is otherwise arranged so as to concentrate the heat on the dish or
in and the article being cooked.
The mechanism above described can be similarly used for revolving a plate or
any culinary vessel other than a dish or tin either before the fire or in an oven.

page_text: By using the said mechanism to revolve an oven plate in an oven anything
cooked therein and standing on the plate is cooked evenly all over as all sides are
equally presented to the hottest side of the oven.
Instead of using the rotary fan governor I may employ an escapement or other
well known means for regulating the speed of the main spindle carrying the article
to be revolved.
The mechanism above described for rotating articles whilst cooking can be
similarly used for rotating articles in shop windows and for other purposes where
a slow rotary motion and but little power are required.
Dated this 21st day of February 1893.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in and connected with Means for Rotating Food
whilst Cooking, and for Rotating Articles in Shop Windows, and
for other like purposes.
I, THOMAS SMITH, of 36, Halesowen Road, Old Hill, Staffordshire, Watch and
Clock Dealer, 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 consists of the herein-described improvements in and connected
with means for rotating food whilst cooking and for rotating articles in shop
windows and for other like purposes and this invention is carried out as
follows:-
I will first describe my invention as applied to causing a dish or tin to revolve
before a fire for the purpose of roasting or otherwise cooking a joint or other food
contained on the dish or tin and I will refer to the accompanying drawings on.
which
Fig. 1 is a general view of my invention on a reduced scale arranged to cause a
dish or tin to revolve before the fire or in an oven;
Fig. 2 shews another arrangement of my invention provided with a stand made
with hooks from which chops or other articles to be cooked can be suspended;
Fig. 3 is an elevation and Fig. 4 is a plan of my invention drawn to a larger
scale than Figures 1 and 2 and with the plate or dish removed;
Fig. 5 is a front sectional elevation and Fig. 6 is a side sectional elevation of the
same and
Fig. 7 is an inverted plan of the same with the outer casing removed.
The same letters of reference indicate the same or corresponding parts in all the
figures of the drawings.
C
The dish or tin a is preferably of circular form and rests upon the horizontal
wheel or circular plate b which is fixed to and revolves with the central vertical
spindle which is supported in the bearing d in the top plate D of the box or
framework of the driving mechanism hereinafter described and the bottom of the
spindle c runs in the footstep f carried by the bracket F which also forms a bearing
for the bottom end of the spindle i hereinafter described. This spindle c receives
slow rotary motion by means of a coiled steel spring like a clock spring contained
in a going barrel g (or the barrel g may be dispensed with) acting through the
spur
wheel (on the main spring spindle i) and pinion j (on the main spindle c) or other
gearing may be used to transmit power and rotary motion from the main spring to
the spindle c. The motion of the spindle c is controlled by the rotary fan governor K
revolving at a high speed and driven from the spindle c by the spur gearing shewn
on my drawings. or by other means receiving motion from the aforesaid spring.

page_text: The gearing shewn upon my drawings and which I have found to answer well in
practice for driving the fan governor K from the spindle c consists of the spur
wheel fixed on the spindle c gearing with a pinion m' fixed on the spindle M on
which spindle is also the spur wheel m² gearing with the pinion n¹ fixed on the
spindle N on which is also fixed the spur wheel n³ which gears with a pinion ¹ on
the spindle of the fan governor K. The said rotary fan governor K consists of
the vertical spindle 2 revolving in a bearing in the top plate D and in the bracket o
(which bracket also forms the bottom bearings for the spindles M and N) this
spindle having loosely hinged to its bottom end the four vanes marked ³ (or two
three or more vanes may be used) which when the spindle ³ is not revolving hang
down vertically as shewn in Fig. 5. When the spindle and vanes ³ revolve as
when the apparatus is at work the vanes turn outwardly from the spindle k² as shewn
in Fig. 6 and present a certain portion of their surface to the resistance of the
atmosphere and thus cause the main spindle C on which is the wheel or plate b
carrying the tin or dish a to revolve slowly. When the main spring in the barrel g
is but slightly unwound which would cause the governor K and the main spindle Č
to revolve quicker than their normal speed, then the vanes k³ fly farther out and
present a larger surface to the atmosphere and thus by giving the main spring in
the barrel g more work to do the governor K prevents the rotation of the main
spindle being materially increased. Similarly when as the main spring in the
barrel g unwinds and its power to turn the mechanism is decreased the speed of the
governor K decreases also and the vanes turn down somewhat and as they do not
then displace so much air when revolving there is less work for the main spring to
do and consequently the speed of the main spindle c is but slightly decreased. The
main spring in the barrel 9 can as a clock be wound by a key on the square end of
the spindle a suitable ratchet wheel p and click of ordinary kind being employed
to keep the spring wound up.
By means of the stopping lever q fixed on the plate D and which can either be
moved so as to touch and stop the spindle ² as shewn in Figs. 5 and 7 and 4 or so
as not to touch the said spindle k² as shewn by dotted lines in Fig. 4 the revolving
governor K and with it the other revolving mechanism can be stopped and started
when required.
·
The said mechanism above described is by preference contained within a box or
case such as e provided with a top plate D to which the mechanism is fixed the
box e being made with side flanges e as shewn in Fig. 6 or being otherwise formed
to rest upon the usual strides before a fire; and the box or case e is or may be
also provided with feet e³ so as to stand or rest on the finger or floor or on an oven
bottom or other support as may be required.
Upon the revolving tin or dish a there may as shewn in Fig. 2 be a tripod or
stand made with hooks such as r¹ or other means from which the meat or other
article to be cooked can be suspended.
At the back of the dish or tin a that is at the side farthest from the fire I may
provide an ordinary stationary bonnet or hood of sheet metal which is adapted to
stand upon the strides or is otherwise arranged so as to concentrate the heat on the
dish or tin and the article to be cooked.
By using the said mechanism above described and illustrated on my drawings
to revolve an oven plate on the wheel b in an oven anything cooked thereon and
standing on the plate is cooked evenly all over as all sides are equally presented to
the hottest side of the oven.
It will be evident that without departing from the nature of my invention I
may instead of using the rotary fan governor K above described employ an escape-
ment or other well known means for regulating the speed of the main spindle c
carrying the article to be revolved.
The mechanism above described for rotating articles whilst cooking can be
similarly used for rotating articles in shop windows placed upon the wheel or
plate band for other like purposes, such as for warming plates or food before a
fire where a slow rotary motion are required.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what inanner the same is to be performed I declare that what I
claim is
1. In an apparatus for rotating food whilst cooking and for rotating articles in
shop windows and for other like purposes, the combination of the box or case
containing the operating mechanism, the vertical spindle c supported by such case
and having fixed at its top end a horizontal wheel or plate, a coiled spring and
gearing contained in such case for slowly rotating the spindle c, and parts
supported thereby, the revolving fan governor K or other regulator driven by
gearing from the said coiled spring and adapted to regulate the speed of the
spindle c and parts supported thereby, aud means for stopping and starting the
mechanism when required, all substantially as herein before set forth.
2. In an apparatus for rotating food whilst cooking and for rotating articles in.
shop windows and for other like purposes, the combination of the box or case
containing the operating mechanism and made with side flanges such as e² e at the
top adapted to rest upon ordinary strides before a fire, the vertical spindle c
supported by such case and having fixed at its top end a horizontal wheel or plate,
a coiled spring and gearing contained in such case for slowly rotating the spindle c
and parts supported thereby, the revolving fan governor K or other regulator
driven by gearing from the said coiled spring and adapted to regulate the speed of
the spindle c and part supported thereby, and means for stopping and starting the
mechanism when required, all substantially as herein before set forth.
3. Apparatus for rotating food whilst cooking and for rotating articles in shop
windows and for other like purposes constructed and arranged substantially as
hereinbefore described and illustrated by the accompanying drawings.
Dated this 22nd day of November 1893.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.