Improvements in and connected with Chopping or Mincing and like Machines.
Year: 1893

page_text: Date of Application, 20th Feb., 1893
Complete Specification Left, 20th Nov., 1893-Accepted, 23rd Dec., 1893
PROVISIONAL SPECIFICATION.
Improvements in and connected with Chopping or Mincing and like
Machines.
We, ALEXANDER WOOD, of 10 Stockwell Street, Glasgow, and THOMAS
DAVIES, of 297 Main Street, Bridgeton, Glasgow, Weighing Machine Makers, do
hereby declare the nature of this invention to be as follows:-
This invention mainly relates to machines of the "Enterprise" class for mincing
or chopping meat and such like, and it has for its object to improve their
construction.
Heretofore machines of this class have been driven by ordinary external cog
gearing, or by chain gearing. In the present invention, the gearing consists of a
pinion, working in an internally toothed wheel.
In carrying out our invention, we fit, in any suitable position, a driving shaft,
which has the usual fly wheel and handle or fast and loose pulleys for power. On
the inner end of the driving shaft, is a pinion, which gears with an internally
toothed wheel or disc. The disc is pinned, (preferably by means of a set pin), to,
and revolves, the spindle of the worm of the chopper or like machine.
With the present construction of machines, when it is desired to withdraw the
worm, the driving gear has to be completely taken off the worm spindle, and then
to be re-adjusted and re-placed when the worm is again inserted. To overcome
this objection and to facilitate the insertion and removal of the worm, we make the
disc wheel or its boss with a hollow sleeve or projection, which extends over and
around the projecting end of the body of the mincer or chopper. The arrange-
ment is such that, when the worm is withdrawn, the sleeve catches on to the
projecting end of the body, and is there held in place, (preferably by a coverplate),
ready for the re-insertion of the worm.
As considerable trouble is often experienced in taking off the plate of the
machine, we, to facilitate its removal, provide a lever or bar, which is so arranged
as to catch on or against the studs on the face of the plate, or on or in the grooves
on its circumference. This lever may be made with a box key or other arrange-
ment at its end, for screwing the set pin in and out of place.
Our invention can be applied to any machine which is driven in a similar manner
to "Enterprise" and like chopping machines.
Dated this 18th day of February 1893.
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent.
COMPLETE SPECIFICATION.
'Improvements in 'and connected with Chopping or Mincing and 'like
Machines.
Wė, ALEXANDER WOOD, of 10 Stockwell 'Street, Glasgow and THOMAS
DAVIES of 297 Main Street, Bridgeton, Glasgow, Weighing Machine Makers, 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 mainly, relates to machines of the "Enterprise" class for mincing
or chopping meat and such like, and it has for its object to improve their
construction.
Heretofore machines of this class have been driven by ordinary external cog

page_text: gearing, or by chain gearing. In the present invention, the gearing consists of a
pinion, working in an internally toothed wheel.
On
In carrying out our invention, we fit, in any suitable position, a driving shaft,
which has the usual fly wheel and handle or fast and loose pulleys for power.
the inner end of the driving shaft, is a pinion, which gears with an internally
toothed wheel or disc. The disc is pinned (preferably by means of a set pin), to,
and revolves, the spindle of the worm of the chopper or like machine.
Usually with the present construction of machines, when it is desired to withdraw
the worm, the driving gear has to be completely taken off the worm spindle, and
then to be re-adjusted and re-placed when the worm is again inserted. To over-
come this objection and to facilitate the insertion and removal of the worm, we
make the disc wheel or its boss with a hollow sleeve or projection, which extends
over and around the projecting end of the body of the mincer or chopper. The
arrangement is such that, when the worm is withdrawn, the sleeve catches on to the
projecting end of the body, and is there held in place, (preferably by a cover-plate),
ready for the re-insertion of the worm.
As considerable trouble is often experienced in taking off the plate of the
machine, we, to facilitate its removal, provide a lever or bar, which is so arranged
as to catch on or against the studs on the face of the plate, or on or in the grooves
on its circumference. This lever may be made with a box key or other arrange-
ment at its end, for screwing the set pin in and out of place.
Our invention can be applied to any machine which is driven in a similar manner
to "Enterprise" and like chopping machines.
And in order that our said invention may be properly understood, we have
hereunto appended an explanatory sheet of drawings, whereon
Fig. 1 is a side view, partly in section, of the chopper.
Fig. 2 is a cross section on the line - Fig. 1.
Fig. 3 is a side view of a lever key for taking off the ring c.
Fig. 4 is an end view of the lever key Fig. 3.
Fig. 5 shows the lever key as it is applied when the ring c is being screwed off.
The chopper consists of the usual body a, with internal screw or worm cutter,
and perforated plate b. c is the usual ring for holding the plate 6 in place. e is
the spindle of the screw. f is the driving wheel with handle.
In our invention we fit on the end of the spindle e, a circular case g, having
teeth on its internal surface and provided with a thickened hub or boss i. The
spindle e passes through a central hole in the boss and is secured to it by a pinching
screw. The spindle is squared on its upper side and the hole in the boss is made
to conform therewith, so that, when the boss is turned, the spindle turns with it.
jis a pinion wheel which is fitted on the short shaft k carrying the driving or fly
wheelf. This shaft k is out of line with and is not connected to the spindle .
The pinion gears, as shown at Fig. 2, with the teeth of the disc wheel g. 1 is a
circular cover plate which is held in place, by a pin m screwed into the bracket P.
This cover has a flange on it which supports the disc wheel g, and, in conjunction
with the boss i, retains it in place whenever the spindle and worm is withdrawn for
cleaning purposes.
It will be noted that the boss or hub i is rabetted or cut out at so as to fit.
loosely on the projecting end a¹ of the body a.
the
The lever key n, Figs. 3 and 4, is used for taking off the ring c. As shown this
lever key has, at one end, a hollow key n' which can be fitted on the head of t
pinching screw, for the purpose of screwing it up or unscrewing it.
The opposite end of the key is curved and has two lugs n', n' and two holes n', n'.
The lugs hold the key in place on the ring c and the pins q pass through the holes.
By using this key the ring c can be easily screwed on or off.
Our improved gearing ensures a steady drive and an uniform pressure on the meat
etc. when being forced through the machine. The dangers arising from exposed
tooth wheels and chains, as used in the present machines, is, with our chopper,
entirely avoided as all the gearing is encased.
...31

page_text: Our machine possesses an advantage in that the feeding screw or worm can be
withdrawn and replaced again in position in a few seconds without moving the
gearing or driving wheel. The taking down and shifting of the gearing is at
present a source of considerable trouble to unskilled parties using chopping
machines as they, often, do not know how to fit the parts together again. It will
be seen that although the spindle e is withdrawn from the boss i the gearing is
always supported and will not be displaced as the cut out part of the boss i rests
on the projection a' of the body a whilst the flange of the cover supports the
wheel g at the opposite side. The machine can be fitted with fast and loose pulleys
for power.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
consider novel and desire to claim is :-
1. The general arrangement and combination of parts of the chopping or mincing
machine, substantially as hereinbefore described and shown on the drawings
annexed.
2. In chopping or mincing machines the combination with the body a and internal
feeding screw of an internally toothed wheel detachably fitted on the spindle of
said screw and a pinion which gears therewith fitted on the driving shaft, sub-
stantially as hereinbefore described and shown on the drawings annexed.
3. In combination, the body casing, the screw spindle extending through the
same, the internal gear detachably connected to the projecting end of the shaft,
supporting bearings for said gear on each side thereof for holding the same in
proper position while the screw spindle to which it is connected is detached and
removed, and the driving shaft having a pinion fitted within the internal gear,
substantially as herein before described and shown on the drawings annexed.
4. The combination with a chopping or mincing machine of a lever-key (n) for
turning the ring c made substantially as hereinbefore described and shown at
Figs. 3 and 4 of the drawings annexed.
Dated this 18th day of November 1893.
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent.