1. No category

Feb. 7, 1950
' w, c, HANSON
2,496,468
DOUGHNUT CUTTING MACHINE
Filed June 24, 1946
1
3 Sheets-Sheet l
INVENTOR.
ZUaZZer Cfianson
BY
'
‘
WWW
H7775
Feb. 7, 1950
w. c. HANSON
2,496,468
DOUGHNUT CUTTING MACHINE
3 Sheets-Sheet 2
Filed June 24, 1946
my. 2
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INVENTOR.
(ZUaZ Z er Cféan sun
BY
,
‘2,496,468.
Patented Feb. 7, 1950
UNITED“
PATENT‘ ()FFIQE
wane-1o;inaaarasm;
Calif}; assigner" drone:
half to David R.‘ McKinley," Sacramento, Calif.
Appi'aai'ioa Jute 24, 1946; seen NB. agar
a:
4 came.
(Cl. I07~"—‘23)
2' .
bearings 61; The’
heads 5' are connectedlto
g'ethér', in rigid’relation, by a ‘spacer’ sleeve 1 hired
This‘ invention is; directed mend it is an object
to provide,‘ a commercial doughnut cutting ma‘;
chine operative, in‘ combination with :a' conveyor
belt on‘ which r1“! on of dough is disposed, to out
such dough into Vth‘elforni’ of doughnuts prepara
Another object of‘ are invention to provide
a doughnutcutting- machine, as above, viirlfiich in
cludes aqdrunilassemloly having a (plurality ___of
doughnut cutting units?onand projecting out-‘
tory tofcoo-king the same.‘
,
_
'
h
‘
h
>_
belt, and thereioeing "novel means vfunctioning
with rotation‘of said dnumassembly to discharge
the_ doughnuts froinjthencutting units-after the
latter'pr-uni in engagement with said conveyor belt
.
to the‘ shaft i'. At their peripheries the end‘heads
5 are connected hy'a plurality of circumferential
1y‘ spaced, transversely eiiten'dingparallel'Chars _8,
_v ‘_
wardly frornthe periphery thereof; the “drum "as
sembly being frictionally driverili-rom the conveyor
to quia?dfprm such deughnuie. ,
to‘ said- heads‘ in concentric surrounding relation
._
and each‘ such‘ ]oar carries a' transverse row‘_ of
doughnut cutting units, each‘ of whi'ch‘is indi
cated‘ generally at: 9" Each of the doughnut‘out
ting units _9‘ com“ s‘ an outside cutter‘ ring i0
and‘ a" center cutter rirrigr H‘ of considerably lesser
diameter disposed. in concentric relation to; the
cutter ring Ill‘. Both of the‘ ring'sjllljand ll‘ of
g each cutting ‘unit 9 are‘ relatively sharjpatutheir
outer edges‘. The doughnut cutting units 9‘ pro
ject ‘outwardly from the“; bars‘ 8“ a distance such
thaltjs'aid units; run, at the‘ bottom of the] drum
assembly, in fire onal engagement with the con
Ali-additional object of the invention is to pro
v'e‘yor'l belt ‘2:, ‘whereby said'dr-um assembly is
vide a doughnut cutting machine, as in the pre-_
ceding paragraph, wherein said means comp-rises 20.. driven in the di'réctioi'i' indicated’ by the arrow in
doughnut vpushoutmains mounted in the drum as
Fig.2.
A~further object‘ of the_ inf/?e" tion is tofpr'oduce
for which‘it is'designe'd.
H
7
_
'
_
_
‘_
ting units a, which ‘are jricti'onally engaginephe
the_jdoiighnuts.
v
,
,1
y
_
v
,
j
_,
Iii tendito remain~ in‘the'l'a'tter, but ‘are vdistharg‘ed
therefrom back‘ onto the‘ conveyor .belt 2‘ by the
I followi
iig' structural ‘arrang e‘me'ht :
lly'putwardly'loi fch'end headjithein'a
chine‘ includes a
Fig. 1 is a longitudinal sectional elevation of
the machine.
disc is; each navmg' a‘ hub
l4 keyed, as at I5, ‘onto the shaft I, whereby said
cam discs l3 are non-rotatable.
Fig. 2 is a cross section on line 2-2 of Fig. 1.
Fig. 3 is an elevation of one of the cam discs,
nut cutting units, detached.
‘
‘ _The"doughni_itsg agent or formed‘ by' the units
Inthedrawing's‘:
detached.
Fig. 4 is a plan view of one row of the dough
,
v conveyoi‘ijb‘elt _2', out through’ said ribbon to ram
30'
These objects are accomplished by means‘ of
such structure‘ and relative‘ arrangement of parts
as will i-ully appear ioy a ‘perusal of the following
speci?cation and claims.
_
passes‘ tnérebéneath. With ‘.pas'siag'eof thelriqbbon
orddueh. .l‘ziréneaihihe; rum assemblyjiine mit
_
an eiiective and‘lpractical' device“ for the purpose
_.
ahead‘ or the doughnut cutting machine, and is
engaged :by thedru'rnwass'einbly: as‘ said'ri‘obon
25
vancesaid pins through the cutting ‘units after
each doughnut forming operation.
.
layer of dc'ughj i2'lis ted’ tothe conveyor belt 2
units, and a cam- mechanism operative‘ to retract
said pins prior to the cutting'uni'tsl engaging the
ribbon of dough‘ on the'conveyor \belt; and to ad
.
‘ >Whenthe vmachine is in operation a ribbon2 or
semhly in position/to work through the cutting
The cam discs
l3 ‘are each ‘formed, adjacent the periphery there
40
of, with a laterally inwardly opening eccentric
cam track or channel I6 of predetermined con
?guration. Rods -|1 correspond to and are dis~
posed radially inwardly of the bars 8, and said
Fig. 5 is a plan view of one row of the pushout
rods project, at the ends, through slots 18 in the
pins, detached.
Referring now more particularly to the char 45 end heads, and thence extend into the cam tracks.
In corresponding relation to each cutting unit
acters of reference on the drawings, the dough
ii the adjacent rod I? is fixed ‘with the following
nut cutting machine comprises a horizontal shaft
doughnut pushout pin arrangement:
i supported in non-rotatable relation transverse
A center pushout pin I9 is ?xed on the rod and
1y alcove ‘a conveyor belt 2 by means of upstand
projects through a bore 20 opening into the center
ing standards 3. At opposite ends the shaft I is
cutter ‘ring I i, while ‘four symmetrically arranged
secured to the standards 3 by clamps 4.
pushout pins 2| extend in pairs on opposite sides
A drum assembly is rotatably mounted on the
of the adjacent bar l8 for movement through the
?xed shaft l between the standards 3, and com
outside cutter ring I0, the latter ,being of substan
prises a pair of relatively widely spaced circular
end heads 5 turnably mounted on said shaft by 55 tially greater diameter than the width of the loar
3
2,496,468
8, whereby the pushout pins 2| can be disposed
as claimed. The pushout pins 21 for each cutting
unit 9 are in the form of two U-shaped members
secured to the corresponding rod I‘! on opposite
edges of the bar and the inner periphery of the
cutter ring, and a dough conveyor belt disposed
sides of the center pushout pm I 9 and straddling
tangentially of the periphery of the machine,
groups of push out pins, the pins of each such
group straddling the bar from the back and being
the ‘adjacent bar 8.
Rotation of the rods I1 is prevented by radial
so positioned relative to the cutter rings that
when reciprocated they will move through the
guide rods 22 extending from collars 23 ?xed on
cutter rings, and means to reciprocate such
groups of push out pins.
the rods if; said guide rods 22 projecting in
wardly in slidable relation through guide ears 24 10
2. A cutting machine as in claim 1 in which
the push out pins are spaced from the inner
on the inner face of one of the circular end
peripheries of the cutter rings.
heads 5.
The con?guration of the cam tracks [6 is such
3. A doughnut cutting machine comprising a
that the rods [1, together with the pushout pins
supported shaft, a pair of spaced apart circular
[9 and 2 l, are retracted in advance of the cutting 15 end heads mounted for rotation on the shaft, a
plurality of circumferentially spaced apart par
units 9 engaging the ribbon of dough l2, and are
held so retracted until the doughnuts have been
allel bars fixed to the peripheries of the end heads
cut. Thereafter, and as the cutting units 9 begin
and extending between said heads, a plurality of
to rise away from the conveyor belt 2, the cam
doughnut cutting units mounted on each bar,
tracks 16 act on the rods I‘! to advance the pins 20 each such cutting unit comprising a. cutter ring
l9 and 2| through the cutting units 9 so as to
?xed to the face of the adjacent bar and such
discharge the formed doughnuts, which then fall
ring being of a diameter to project to each side
back onto the conveyor belt 2. At a following
thereof to leave open spaces between the side
point on said conveyor belt 2 the doughnuts, and
edges of the bar and the inner periphery of the
trimmings, are separated by hand.
25 cutter ring, and a dough conveyor belt disposed
tangentially of the periphery of the machine, a
With the described doughnut cutting machine,
rod disposed parallel to each bar and spaced
‘doughnuts may be cut or formed commercially
therefrom inwardly toward said shaft, means to
in a practical, speedy, and effective manner, the
reciprocate said rods toward and away from the
machine being of such construction that it re
quires a minimum of maintenance or repair, and 30 bars, and a group of spaced apart push out pins
?xed to the rods adjacent each cutter ring, such
, can be readily cleaned preparatory to, or after,
?nger-s straddling the adjacent bar and project
use.
ing into the adjacent cutter ring.
From the foregoing description it will be readily
4. A machine as in claim 3, including a radial
seen that there has been produced such a device
v as substantially ful?lls the objects of the inven 35 guide member on each of said rods, guide ears
on the end heads, each guide member projecting
tion as set forth herein.
through one of said guide ears in sliding relation
thereto, whereby the rods will rotate with the
heads while allowing such reciprocation thereof.
may be resorted to as do not form a departure 40
WALTER C. HANSON.
from the spirit of the invention, as de?ned by the
REFERENCES CITED
appended claims.
Having thus described the invention, the fol
The following references are of record in the
lowing is claimed as new and useful, and upon
?le of this patent:
which Letters Patent are desired:
UNITED STATES PATENTS
1. A doughnut cutting machine comprisinga
supported shaft, a. pair of spaced apart circular
Number
Name
Date
While this speci?cation sets forth in detail the
present and preferred construction of the device,
still in practice such deviations from such detail
end heads mounted for rotation on the shaft, a
'_ plurality of circumferentially spaced apart par
allel bars ?xed to thezperipheries of the end heads 50
and extending between said heads, a plurality of
doughnut cutting units mounted on each bar,
‘each. such cutting unit comprising a cutter ring
29,295
870,249
Marsh ___________ __ July 24, 1860
Patterson _________ __ Nov. 5, 1907
1,656,590
Longstreth et a1. ____ Jan. 17, 1928
1,945,755
fixed to the face of the adjacent bar and such
Number
ring being of a diameter to project to each side 55
11,128
thereof to leave open spaces between the side
Scruggs ___________ __ Feb. 6, 1934
FOREIGN PATENTS
Country
Date
Great Britain ____ __ June 30, 1891