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Патент USA US2413046

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Dec. 24, 1946.
H. H. HIOLLY
2,413,046 >
HAMBURGER PATTY MAKER
Filed May 1, 1944
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Dec. 24, 1946.
H. H. HOLLY
2,413,046
HAMBURGER PATTY MAKER
Filed May 1, 1944
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2,413,046
H. H. HOLLY
HAMBURGER PATTY MAKER
Filed May 1 ,‘ 1944
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Patented Dec. 24, 1946
2,413,046
UNITED STATES PATENT OFFICE
2,413,046
HAMBURGER PATTY MAKER
Harry H. Holly, Chicago, Ill., assignor to Holly
Molding Devices, Chicago, Ill., a partnership
Application May 1, 1944, Serial No. 533,587
25 Claims. (01. 17—'32)
This invention relates to an improved ham
burger patty maker, and the present application
discloses improvements over my previously pat
ented inventions along this same line, as follows:
2
of the apparatus whereby the completed patty is
ejected from the mold or slide plate.
Figure 3 is an elevation of the apparatus of
this invention, showing same as viewed from the
“Molding device,” dated May 25, 1937, No.
side opposite to that shown in Figures 1 and v2.
2,081,455; “Patty molding machine,” dated De
Figure 4 is a detailed view taken from the line
cember 10, 1940, No. 2,224,390; “Patty makers,”
4—4 of Figure 1 and looking in the direction in
dated October 28, 1941, No. 2,260,780; “Portion
dicated by the arrows.
_
ing mechanism,” dated November 17, 1942, No.
Figure 5 is a side view of the device, parts being
2,302,651; “Automatic portioning and molding 10 broken away to show interior construction, and
mechanism,” dated January 11, 1944, No.
illustrating the movable elements in a position
2,338,939.
.
This application further constitutes an im
provement over my invention entitled “Feed and
slightly subsequent to the position of the corre
sponding parts shown in Figure'l.
Figure 6 is a detailed view of a portion of the
measuring means for plastic material,” applica 15 meat compressing and holding means.
tion for patent on which was ?led July 9, 1943,
Figure '7 is a top plan View of the apparatus,
Serial No. 493,997.
showing the same in the position illustrated in
The primary object of the present invention
Figure 2.
is the e?‘icient production of ground meat patties
Figure 8 is a detailed view of a modi?ed form
for use in hamburgers wherein each patty is ac 20 of the invention, which can be used in connection
curately shaped so far as dimensions and weight
with the structure shown in the preceding ?gures.
are concerned, and is immediately ready for
Figure 9 shows a further embodiment of the
cooking on a grill or can alternatively be pack
modi?cation illustrated in Figure 8.
aged for storage and later use.
Figure 10 is a detailed view, parts being broken
One of the important objects of this invention 25 away, showing a further feed means which can
is to provide a hamburger patty maker, either
hand-operated or motor driven, wherein a com
paratively large quantity of ground meat can be
placed in a hopper, from whence it is positively
fed to a mold which is of predetermined shape ‘
and size, from which mold the completed patty
is automatically ejected for further disposition.
Another important object of the invention is
to provide in a hamburger patty maker means
for insuring a full weight patty in each and every
operation, while at the same time eliminating
be employed with the machine, if desired.
As shown in the drawings:
The reference numeral 12 indicates generally
a hopper which forms an essential part of the
apparatus of this invention, and which hopper is
mounted on a supporting base I 4. The hopper
may be removably mounted, if desired.
Rotatably mounted in the hopper and po
sitioned transversely thereof is a meat feeding
cylinder I6, which has ?xedly and radially
mounted in its periphery a pusher vane 18. This
cylinder I6 is mounted on a shaft 20 squared at
the use of undue pressure on the meat itself, it
having been found that excess pressure is harm—
one end, as shown in Figures 1 and 5, and which
ful to the meat and to the completed hamburger
shaft is rotatably mounted in suitable bearings
in that valuable and nutritious meat juices are 410 in the sides of the hopper l2.
7
thereby undesirably extracted and wasted.
A gear 22 is mounted on the shaft 20 outside
Other and further important objects of the
the hopper, and this gear is in mesh with two
invention will be apparent from the disclosures in
other gears 24 and 26, as best shown in Figures 3
the accompanying drawings and following speci
and 7.
?cation.
The gear 26 is mounted on a shaft 28, which
The invention, in a preferred form, ‘is herein
also extends transversely of the hopper and into
after more fully described.
which, on the inside of the hopper, is ?xed a series
In the drawings:
of radially extending prongs 30. The gears 22
Figure 1 is a side elevation, partly in section,
and 26 preferably have av four to one ratio so
of the improved hamburger patty maker of this 50 that the shaft 28 with its prongs 30 will rotate
invention, showing in some detail the actual
four times while the shaft 20 with its drum I 6
operation of molding a meat patty.
»
rotates once.
Figure 2 is also a side elevation of the device
illustrated in Figure 1, depicting the exterior
construction and particularly the arrangement
‘
> A comb-like device 32 is provided ?xed in one
end of the hopper, as best shown in Figures 1, 4,
5 and 7, whereby any meat which might have ‘a
2,413,046
-
3
tendency to stick to the prongs 30 is stripped
therefrom as the shaft 28 is rotated, and forced
into the space between the comb 32 and the
periphery of the cylinder It, all as best shown
in Figures 1 and 5.
_
This meat is then pushed by the vane l8 down
wardly into the positions shown in Figure 1,
where it is trapped between the vane and the
outermost face of a meat-compressing and hold
4
in the slide plate 48 when the slide plate is in
retracted position, as best shown in Figures 1
and 5.
The plate 52 has an opening 58 therein,' which
opening is adjacent the element 34, whereby when
the apparatus is in the position shown in Fig
ure 1, the meat can readily pass from the space
between the vane I 8 and the plate 34 through the
openings 54 and 56 and into the hole in the slide
ing element 34, which operates between the 10 plate 48. When the hole in the slide plate has
been ?lled and the vane l8 and plate 34 have
periphery of the cylinder 16 and the bottom of
assumed the position shown in Figure 5, the open
the hopper I2. This element 34 is removably
ing 58 in the plate 52 has moved beyond the open
mounted on the end of a shaft 36, which passes
ing 54 in the top of the cabinet l4, thereby lock
through one face of the hopper and projects be
ing or trapping the meat in the hole in the slide
yond the same through a bearing 38. The shaft
plate 48 and preventing any back pressure from
38 is notched, as best shown by the dotted lines
allowing the meat to move out of the hole, which
40, and into this notch is ?tted the correspond
would then of course result in an undersized
ingly shaped end of a locking pin 42, which is
patty.
,7
‘held in position in the notch by means of the
helical spring 44, the helical spring being main 20 It will be noted that the plate 58 which is in
the cabinet l4 and beneath the slide plate 48,
tained in the desired position beneath a holding
has a wedge-shaped depression 60 in its top face
ledge 45.
adjacent the position of maximum retraction of
Owing to the nature of ground meat, the amount
the opening in the slide plate 48. This is for
of same which will be forced into the space be
the purpose of assisting to wedge the portion of
tween the comb 32 and the surface of the cylinder
ground meat into the opening in the slide plate
l6 will inevitably vary and the amount caught
48 when the same is again moved forwardly, as
by the vane l8 and pushed down between it and
indicated
by the arrow in Figure 5. This wedge
the corresponding inner face of the hopper l2 will
shaped depression is not necessary with all kinds
likewise be variable. However, it is of course
of meat and can be dispensed with in many cases.
necessary that the same amount of meat will even
After the opening in the slide plate 48 has
tually be delivered in the shape of each patty.
been
?lled and the slide plate moved to its out
This is determined by an opening in a reciprocat
ermost position, as shown in Figures 2 and 3, the
ing plate 48, which slides in a space provided
completed patty 62 is ejected from the opening
therefor in the base 14.
in the slide plate 48 by means of a knock-out ele
As shown in Figures 1 and 5, the meat forced
ment, which includes a ring 64 connected by
down by the vane l8 passes through an opening
means of a winged nut or the like 68 to the end of
in the bottom of the hopper and into the opening
a supporting arm 68.
‘
in the slide plate 48 when the slide plate is in
As best shown in Figure 2, this supporting arm
retracted position. As soon as this opening in
has integral therewith an upright extension
the slide plate is ?lled, pressure is built up against 40 68
10
which
is parallel to one side of the hopper, and
the element 34, as there is always an excess of
which has ?xed on its rear face a lug or projec
meat over and above the amount which is to
tion 12. This projection rides on a cam 14 which
comprise the completed patty. Continued rota
is mounted on and rotated by the shaft 28, and
tion of the cylinder I6 and the corresponding
pressure of the vane l8 against the excess meat
will eventually force the element 34 and its shaft
36 rearwardly against the downward pressure of
the pin 42 in the notch 40, and these elements
will then assume the position shown in Figure 5,
whereby excess meat is simply carried around by
the vane ill for a further feeding operation.
Retraction of the shaft 38 is assured even
though a minimum amount of excess meat is left
after the vane 18 has completed the operation of
the cam 14 is so shaped that at one part of its
revolution the lug 12 drops into a depression in
the cam 14, thereby allowing the knock-out as
sembly to move downwardly and eject the com
pleted patty 62 from the opening in the slide
plate 48. The knock-out assembly is pivoted on
the casing M at 16 and a spring 18 assures of
the desired downward motion for patty-ejecting
purposes.
In order to further assure the positive ?lling of
opening in the slide plate 48, a cylinder 80
?lling the hole in the slide plate 48 because the 55 the
may
be positioned in the cabinet l4 adjacent the
relative dimensions of the vane l8 and the ele
opening
54 in the top of the cabinet, and this
ment 34 on the shaft 36 are such that the vane
cylinder has therein a piston 8| which .is normally
itself will contact the plate 34 in the normal
impelled upwardly by a spring 82. In this ar
rotation of the cylinder 16, thereby forcing the
rangement excess meat is forced into the cylinder
pin 42 out of the notch 48.
60 88 against the upward pressure of the piston 8|
A projection 58 is ?xed on the rear end of the
before the pressure on the excess meat by the
slide plate 48 in such a position that when the
vane i8 forces the element 34 rearwardly. This
slide plate moves forwardly, the projection 58
assures of a reserve supply of meat at all times,
contacts the retracted end of the shaft 38 and
pushes it back into original position with the 0 (ll and when the slide plate 48 is again moved into
its retracted position, the pressure of the piston
pin 42 again in place in the notch 48, all as best
8| against the reserve meat in the cylinder 80
shown in Figures 2‘ and 3.
'
acts to ?rst ?ll the opening in the slide plate 48,
The rear end of the shaft 38 is slotted so that
at least to some extent, and the movement of the
a screw driver or other tool can be used to dis~
assemble this shaft from the plate 34 when the 70 vane l8 completes this ?lling operation. In this
way there is practically never any possibility of
apparatus is to .be taken apart for cleaning.
an undersized patty. This arrangement is illus
Integral with the plate 34 and at right angles
trated in Figure 8.
thereto is a, locking plate 52, which moves over
In Figure 9, a further modi?cation of this safe
an opening 54 in the top of the cabinet l4, and
which opening communicates with ‘the opening 75 ty ?lling element is illustrated, wherein a cylin
5
2,413,046
der 83 is positioned adjacent the forward face of
the hopper l2 and an elongated opening. 54a is
made in the top late of the cabinet 14, whereby
communication from the hopper to the interior of
the cylinder 83 will result. A spring-pressed pis
6
feeding element, a slide plate havingan open
ing therein reciprocatively mounted below the
hopper, means for allowing meat under pressure
from the main feeding elementto pass from the
hopper into the opening in the slide plate, and
ton 84 is mounted in the cylinder 83 and a plate
means for applying additional pressure to the
85 is built into the lower part of the opening 54a,
meat until the opening in the slide plate is filled,
this plate extending to a position in line with the
said last means comprising a retractable plate
forward edge of the hopper l2 or the read edge
mounted adjacent the main feeding element.
of the cylinder 83, all as best shown in Figure 9. 10
3. A hamburger patty maker comprising a
In this construction meat is forced from the hop
hopper for ground meat, a preliminary feeding
per l2 in the usual manner and first. enters the
element in the hopper, a main feeding element al
cylinder 83, after which the retracting movement
so in the hopper adjacent the preliminary feeding
of the slide plate d8 brings the opening therein
element, a slide plate having an opening therein
into line with the opening directly beneath the
reciprocatively mounted below the hopper, means
cylinder 83, this opening being outlined on one
for allowing meat under pressure to pass from
side by the forward edge of the plate 85. The
the hopper into the opening in the slide plate, and
locking plate 52 being at that time in position to
means for maintaining pressure on the meat until
lock the entrance from the hopper, the action of
the opening in the slide plate is ?lled, the main
the piston 84 forces the meat into the opening in 20 feeding element comprising a cylinder rotatably
the slide plate t8, and the capacity of the cylin
mounted in the hopper and a radial vane ?xedly
der 83 is such that there is always an excess of
mounted in the cylinder and projecting beyond
meat over and above the size of the opening in
the periphery thereof.
the slide plate 48, whereby a full patty is again
4. A hamburger patty maker comprising a
always assured.
pl) hopper for ground meat, a preliminary feeding
The slide plate is reciprocated by means of a
crank arm 86 which is ?xed to the gear 24 and ro
tates therewith. The end of this crank arm 86
element in the hopper, a main feeding element al
so in the hopper adjacent the preliminary feeding
element, a slide plate having an opening therein
reciprocatively mounted below the hopper, means
for allowing meat under pressure to pass from the
hopper into the opening in the slide plate, and
is pivotally connected with a connecting rod 88,
which connecting rod has its rear end pivotally 31
connected at 90 to the slide plate 48. This con
necting rod construction can be duplicated on the
means for maintaining pressure on the meat un
other side of the machine if such is considered
til the opening in the slide plate is ?lled, the main
desirable or necessary.
feeding element comprising a cylinder rotatably
The preliminary feed element 28-30 may also
mounted in the hopper and a vane ?xedly mount
be duplicated for better feeding action, as shown
ed in the‘ cylinder and projecting beyond the pe
in Figure 10, where a second shaft 23a is mount
riphery thereof, said vane being of a length suffi
ed in the rear portion of the hopper and a series
cient to contact one face of the hopper through
of pins 30a are fixed in the shaft 28a, which pins
approximately one-fourth of its revolution.
operate through slots in a comb 320,. This shaft 4 (l
5, A hamburger patty maker comprising a
28a is driven by a further gear 92 which is in
hopper for ground meat, a preliminary feeding
mesh with the gear 26, which drives the shaft 28.
element in the hopper, a main feeding element
Thus, the shafts 23 and 28a rotate in opposite di
also in the hopper adjacent the preliminary feed
rections, forcing the meat downwardly through
ing element, a slide plate having an opening
the middle of the hopper and onto the cylinder 3 therein reciprocatively mounted below the hop
£6.
per, means for allowing meat under pressure to
The machine is preferably motor driven, but
pass from the hopper into the opening'in the
can be operated by hand, if necessary. The com
slide plate, and means for maintaining pressure
pleted patties may be delivered direct to the grill
on the meat until the opening in the slide plate
for cooking or may be deposited on individual .
?lled, the preliminary feeding element com
sheets of waxed paper for storage until needed.
prising a horizontal shaft rotatably mounted in
I am aware that many changes may be made
and numerous details of construction varied
throughout a wide range without departing from
the principles of this invention, and I, therefore,
do not propose limiting the patent granted here
on otherwise than as necessitated by the prior
art.
the hopper and a row of pins ?xed in the shaft.
6. A hamburger patty maker comprising a
hopper for ground meat, a preliminary feeding
> element in the hopper, a main feeding element
also in the hopper adjacent the preliminary feed
ing element, a slide plate having an opening there~
in reciprocatively mounted below the hopper,
I claim as my invention:
.
means for allowing meat under pressure to pass
1. A hamburger patty maker comprising a 60 from the hopper into the opening in the slide
hopperfor ground meat, a preliminary feeding
plate, and means for maintaining pressure on
element in the hopper, a main feeding element
the meat until the opening in the slide plate is
also in the hopper adjacent the preliminary fced~
ing element, a slide plate having an opening
therein reciprocatively mounted below the hop
per, means for allowing meat under pressure to
pass from the hopper into the opening in the
slide plate, and means separate from but co-op
crating with the main feeding element for main-
filled, the preliminary feeding element comprising
a shaft rotatably mounted in the hopper and a
series of pins fixed in the shaft, said pins being
in
hopper
alignment,
for co-operation
and a stripping
with the
comb
pins.?xed in
7., A hamburger patty maker comprising a
hopper for ground meat, a preliminary feeding
element in the hopper, a main feeding element
taining pressure on the meat until the opening
in the slide plate is ?lled.
2. A hamburger patty maker comprising a
hopper for ground meat, a prelnninary feeding
element in the hopper, a main feeding element
per,
therein
means
reciprocatively
for allowingmounted
meat under
below
pressure
the
to
also in the hopper adjacent the preliminary
pass from the hopper into the opening in the
ing
also in
element,
the hopper
a slide
adjacent
platethe
having
preliminary
an opening
fee
2,413,048
7
slide plate, and means for maintaining pressure
on the meat until the opening in the slide plate is
?lled, the preliminary feeding element compris
ing a shaft rotatably mounted in the hopper
and a series of pins ?xed in the shaft, said pins
being in alignment, and a stripping comb ?xed in
the hopper for co-operation with the pins, said
preliminary feeding element including a dupli
cate pair of shafts, pins and combs.
8. A hamburger patty maker comprising a
hopper for ground meat, a preliminary feeding
element in the hopper, a main feeding element
also in the hopper adjacent the preliminary feed
ing element, a slide plate having an opening
per, means for allowing meat under pressure to
pass from the hopper into the opening in the slide
plate, and means for maintaining pressure on
the meat until the opening in the slide plate is
?lled, said last means comprising a retractable
plate mounted adjacent the main feeding element,
a shaft projecting rearwardly from the plate
and out through the rear face of the hopper, and
means for releasably maintaining the plate and
shaft in forward position, said last means com
prising a spring-pressed pin mounted adjacent
the rear face of the hopper, with its lower end
adapted to co-operate with a notch in the shaft,
2. horizontally extending plate ?xed to the ?rst
therein reciprocatively mounted below the hop
per, means for allowing meat under pressure to
named plate, said horizontally extending plate
and out through the rear face of the ‘hopper,
and means for releasably maintaining the plate
and shaft in forward position.
9. A hamburger patty maker comprising a hop
per for ground meat, a preliminary feeding ele
ment in the hopper, a main feeding element also
therein reciprocatively mounted below the hop
adapted to move into and out of position over the
opening in the slide plate.
pass from the hopper into the opening in the
'12. A hamburger patty maker comprising a
slide plate, and means for maintaining pressure
hopper
for ground meat, a preliminary feeding
on the meat until the opening in the slide plate
is ?lled, said last means comprising a retractable 20 element in the hopper, a main feeding element
also in the hopper adjacent the preliminary
plate mounted adjacent the main feeding element,
feeding element, a slide plate having an opening
a shaft projecting rearwardly from the plate
in the hopper adjacent the preliminary feeding
element, a slide plate having an opening therein
reciprocatively mounted below the hopper, means
for allowing meat under pressure to pass from the
hopper into the opening in the slide plate, means
for maintaining pressure on the meat until the
opening in the slide plate is ?lled, said last means
comprising a retractable plate mountedadjacent
the main feeding element, a shaft projecting
rearwardly from the plate and out through the
rear face of the hopper, and means for releasably
per, means for allowing meat under pressure to
pass from the hopper into the opening in the
slide plate, and means for maintaining pressure
on the meat until the opening in the slide plate
is ?lled, said last means comprising a retractable
plate mounted adjacent the main feeding ele
ment, a shaft projecting rearwardly from the
plate and out through the rear face of the hop
per, and means for releasably maintaining the
plate and shaft in forward position, said last
means comprising a spring-pressed pin mounted
adjacent the rear face of the hopper, with its
lower end adapted to co-operate with a notch in
the shaft, a horizontally extending plate ?xed to
the ?rst named plate, said horizontally extending
plate adapted to move into and out of position
maintaining the plate and shaft in forward posi
tion, said last means comprising a spring-pressed
pin mounted adjacent the rear face of the hopper,
with its lower end adapted to co-operate with a
over the opening in the slide plate, said horizon
rear face of the hopper,‘ means for releasably
in the opening in the slide plate into a more com
upon the building up of a predetermined excess
pressure between the cylinder vane and the plate
per, means for allowing meat under pressure to
tally extending plate also having an opening
therein, whereby meat is allowed to pass from
the hopper into the opening in the slide plate
when the shaft-supported plate is in one posi
notch in the shaft.
'
tion and whereby meat is locked in said opening
10. A hamburger patty maker comprising a
in the slide plate when the shaft-supported plate
hopper for ground meat, a preliminary feeding
is in retracted position.
element in the hopper, a main feeding element
13. A hamburger patty maker comprising a
comprising a vaned cylinder also in the hopper
hopper
for ground meat, a preliminary feeding
adjacent the preliminary feeding element, a slide
plate having an opening therein reciprocatively 50 element in the hopper, a main feeding element
also in the hopper adjacent the preliminary feed
mounted below the hopper, means for allowing
ing
element, a slide plate having an opening
meat under pressure to pass from the hopper
therein reciprocatively mounted below the hop
into the opening in the slide plate, means for
per, means for allowing meat under pressure to
maintaining pressure on the meat until the
pass from the hopper into the opening in the
opening in the slide plate is ?lled, said last means .
slide plate, and means for maintaining pressure
comprising a retractable plate mounted adjacent
on the meat until the opening in the slide plate
the main feeding element, a shaft projecting
is ?lled, and further means for wedging the meat
rearwardly from the plate and out through the
maintaining the plate and shaft in forward (it) pact mass when the slide plate is reciprocated.
14. A hamburger patty maker comprising a
position, said last means comprising a spring
hopper
for ground meat, a preliminary feeding
pressed pin mounted adjacent the rear face of
element in the hopper, a main feeding element
the hopper, with its lower end adapted to co
also in the hopper adjacent the preliminary feed
operate with a notch in the shaft, the tension
ing
element, a slide plate having an opening
of the spring being such that the shaft and plate
therein reciprocatively mounted below the hop
will be suddenly released for rearward movement
on the’shaft.
11. A hamburger patty ‘maker comprising a
hopper for ground meat, a preliminary feeding
element in the hopper, a main feeding element
also in the hopper adjacent the preliminary feed
ing element, a slide plate having an opening
therein reciprocatively mounted below the hop
pass from the hopper into the opening in the
slide plate, and means for maintaining pressure
on the meat until the opening in the slide plate
is ?lled, together with additional means for
maintaining a reserve supply of meat under pres
sure, said additional means comprising a piston
and cylinder connecting with the opening in the
slide plate.
9
2,418,046
15. A hamburger patty maker comprising a
hopper for ground meat, a preliminary feeding
element in the hopper, a slide plate having an
opening therein reciprocatively mounted below
the hopper, a main ‘feed element in the hopper
for forcing meat under pressure from the hop;
per into the opening in the slide plate, and spring
,
‘15G
pressed piston operating in the cylinder, and
means for allowing meat to move-in one direc
tion only from the hopper to the openingin the
slide plate and to the'cylinder for reserve meat,
the cylinder for reserve meat being positioned
beneath the slide plate;
, _ '
'
20. A hamburger patty maker comprising a
controlled means for maintaining pressure on
hopper forvgrou'nd meat, a preliminary feeding
the meat ‘until the opening in the slide plate is
element in the hopper, a main feeding element
?lled.
,
IO also ‘in the hopper, adjacent the preliminary
16. A hamburger patty maker comprising a
feeding ‘element, a slide plate having an opening
hopper for ground meat, a preliminary feeding
therein‘ reciprocatively mounted below the hop
element in the hopper,‘ a main feeding element
per,‘ meansfor allowing meat under pressure to
also in the hopper adjacent the preliminary
pass’ froni'the hopper into the opening in the
feeding element, a slide plate having an opening 15 slide plate, and means for maintaining pressure
therein reciprocatively mounted below the hop
on the meat until the opening in the slide plate
per, means for allowing meat under'pressure to
is ?lled, and additional means for maintaining
pass from the hopper into theopening in the
a ‘reserve supply of meat under pressure, said
slide plate, and means for maintaining pressure
additional means connecting with the opening in
on the meat until the opening in the slide plate 20 the slide plate, and including a cylinder and a ,
is ?lled, and additional means for maintaining a
spring-pressed piston operating in the cylinder,
reserve supply of meat under pressure, said ad
and means for allowing meat to move in one
ditional means connecting with the opening in
direction only from the hopper to the opening
the slide plate, and including a cylinder and a
in the slide plate and to the cylinder for reserve
spring-pressed piston operating in the cylinder.
meat, the cylinder for reserve meat being posi
1'7. A hamburger patty maker comprising a
tioned above the slide plate and adjacent the
hopper for ground meat, a preliminary feeding
hopper.
‘
element in the hopper, a main feeding element
21. A hamburger patty maker including a hop
also in the hopper adjacent the preliminary feed-,
per for ground meat, meat feeding means in the
ing element, a slide plate having an opening
hopper, an opening in the bottom of the hopper,
therein reciprocatively mounted below the hop
a slide plate having an opening therein recipro
per, means for allowing meat under pressure to
catively mounted beneath the hopper and with
pass from the hopper into the opening in the
its opening adapted to intermittently connect
slide plate, and means for maintaining pressure
with the opening in the bottom of the hopper,
on the meat until the opening in the slide plate
and a spring controlled pressure means also in
is ?lled, and additional means for maintaining a
the hopper co-operating with the feed means to
reserve supply of meat under pressure, said ad
ditional means connecting with the opening in
the slide plate, and including a cylinder and a
spring-pressed piston operating in the cylinder,
and means for allowing meat to move in one di
rection only from the hopper to the opening in
the slide plate.
18. A hamburger patty maker comprising a
maintain meat under pressure during a. part of
each reciprocatory movement of the slide'plate
until the opening in the slide plate is ?lled with
40 meat.
22. A hamburger patty maker including a hop
per for ground meat, meat feeding means in the
hopper, an opening in the bottom of the hopper,
a. slide plate having an opening therein recipro
hopper for ground meat, a preliminary feeding 45 catively mounted beneath the hopper and with its
element in the hopper, a main feeding element
opening adapted to intermittently connect with
also in the hopper adjacent the preliminary feed
the opening in the bottom of the hopper, and a
ing element, a slide plate having an opening
spring controlled pressure means also in the
therein reciprocatively mounted below the hop
hopper co-operating with the feed means to
per, means for allowing meat under pressure 'to 50 maintain meat under pressure during a part of
pass from the hopper into the opening in the slide
each reciprocatory movement of the slide plate
plate, and means for maintaining pressure on the
until the opening in the slide plate is ?lled with
meat until the opening in the slide plate is ?lled,
meat, and means for removing the packed meat
and additional means for maintaining a reserve
from the slide plate opening during a portion
supply of meat under pressure, said additional
of each reciprocatory movement of the slide plate.
means connecting with the opening in the slide
23. A hamburger patty maker including a hop
plate, and including a cylinder and a spring
per for ground meat, meat feeding means in the
pressed piston operating in the cylinder, and
hopper, an opening in the bottom of the hopper,
means for allowing meat to move in one direction
a slide plate having an opening therein re
only from the hopper to the opening in the slide 60 ciprocatively mounted beneath the hopper and
plate and to the cylinder for reserve meat.
with its opening adapted to intermittently
19. A hamburger patty maker comprising a
connect with the opening in the bottom of
hopper for ground meat, a preliminary feeding
the hopper, and a spring controlled pressure
element in the hopper, a main feeding element
means also in the hopper co-operating with
also in the hopper adjacent the preliminary feed
the feed means to maintain meat under pres
ing element, a slide plate having an opening
sure during a part of each reciprocatory
therein reciprocatively mounted below the hop
movement of the slide plate until the opening in
per, means for allowing meat under pressure to
the slide plate is ?lled with meat, and means for
pass from the hopper into the opening in the slide
removing the packed meat from the slide plate
plate, and means for maintaining pressure on the 70 opening during a portion of each reciprocatory
meat until the opening in the slide plate is ?lled,
movement of the slide plate, said means includ
and additional means for maintaining a reserve
supply of meat under pressure, said additional
means connecting with the opening in the slide
plate, and including a cylinder and a spring
ing a knock-out ring of a slightly smaller diame
ter than the diameter of the opening in the slide
plate.
24. A hamburger patty maker including a hop
2,553,011?
11
per for ground meat, meat i’eeding means in the
hopper, an opening in the bottom of the hopper,
a slide plate having an opening therein recipro
catively mounted beneath the hopper and with
its opening adapted to _ intermittently connect
with the opening in the bottom of the hopper,
and a spring controlled pressure means also in
the hopper co-operating with the feed means to
maintain meat under pressure during a part of
12
catively mounted beneaththe hopper and with
its gopening ‘ adapted” to intermittently connect
withthe opening ‘in the bottom of the hopper,
and a spring controlled pressuremeans also in
the hopper ‘co-operating with the feed means to
maintain meat under pressure during apart of
each reciprocatoryjmovement of the slide plate
until the opening in the slide plate is ?lled with
meat, and means for removing the packed meat
from the slide plate opening during a portion of
each reciprocatory movement of the slide plate 10 each reciprocatory movement of the slide ‘plate,
until the opening in the slide plate is ?lled with
said means including a knock-out ring of a slight
meat and to maintain pressure on the meat until
ly' smaller diameter than the diameter of the
the opening in the slide plate has moved away
opening in the slide plate, and means for auto
from the opening in the ‘bottom of the hopper.
matically forcing the knock-out ring downwardly
25. A hamburger patty maker including a hop
through the opening in the slide plate at one
per for ground meat, meat feeding means in the
extremity of its movement.
hopper, an opening in the bottom of the hopper,
.
HARRY H. HOLLY.
a slide plate having an opening therein recipro
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