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Патент USA US2406562

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Aug. 27, 1946.
Fil'ed lay a, 1944
4 Sheets-Sheet__1
\ 1\
Aug. 27, 1946;
Filed w s. 1944
‘ 4 sheets-sheet‘?
E 82\/65
Aug. 27, 1946.
‘ Filed Mays, 1944
4 She‘eis-Shee‘t 3 .
F369 4
Aug- 27, 1946-
. w. s. REYNOLDS
» ‘.
Fiied lay a, 1944
'4 SheetsrSheet 4
Page -9’.
- MRREA/ s. HEY/V0405" ;
Patented Aug. 27, _ 1946
; 2,406,562 1
Warren S. Reynolds, Stratford, . Conn, ' as's'iglior
to Remington Arms Company, Inc, Bridgeport,
001111., a corporation of Delaware
ApplicationMay' c, 1944, Serial Nit-1534.509
.6‘ Claims. (01. 32-2)‘
The present invention relates to a trimming
machine, and, more-especially, to‘ an improved
‘machine for vtrimming ammunition components
tages oi the invention will'be more fully described
in the following speci?cation which is descriptive
such as primer cups and elements of similar
illustrated in. the accompanying drawings.
of the exemplary embodiment vof the invention
In general, percussion Caps or detonators com
prise metal cup-shaped members containing an
tion is not limited to the particular embodiment
shown or to the speci?c use described, but ‘is
anvil and; explosion initiating agents, the latter
comprehensive of all modi?cations thereof‘with
being very sensitive to shock and friction so that
they can be ‘readily brought ,to- ignition by such 10
i It will be_understood,_ however, that the inven-_- '
in the scope of the appended claims.
In the drawings:
Fig. '1» is a front; elevation of the primer cup ,
Percussion caps or‘primers are widely used in
small arms ammunition for igniting the propelg
trimming machine including the hopper but with
the toolholder removed.
lent powder in a cartridge case, the ignition of
Fig. 1a is an enlarged fragmentary front ele
which ‘develops a relatively well sustained but
vation of the tool holder and discharge‘ chute.
not excessive pressure‘ on the base of the projec
tile. The primer is seated in a pocket in the head
of a cartridge case and must'be made accurately
A Fig.v 2 is lanlgend elevation in the direction of
lines 2-2' of- Fig. 1..
I ‘
_ I
Fig. 3‘ is a plan view of the trimming machine
of Fig. 1 including the tool holder and discharge
to diameter to' prevent an escape‘ of gas between
the cup and the walls of its pocket, such- escape 20 chute.
Fig.- -'3'a_is an enlarged fragmentary plan view of
being knownas “blow back” when the cartridge
is ?red. Moreoventhe head of the cup must be , ‘the spindles, cutting tool, hopper chute and feed
su?lciently thick so that it will not be punctured
‘by a-?ring pin. The outside of the cup head-must
Fig..- fi' is an enlarged fragmentary side eleva-i
be a predetermined depth below the face of the 25 tioniof- the primer cup transferlmeans including
shell head, and‘ to insure propertransmission of
the hopper chute and the. stripper, ‘thetr'ansfer
the ?ring pin blow,‘ the ‘primer cup mouth must
jaw being in its advanced-- position.
(seat on- the‘ base of the primer pocket, hencein
. Fig‘. 5 is an enlarged fragmentary ‘from; elevTay
manufacture‘ the'height oi the cup must be‘ accu
. tion-partly ‘in section of the transfer means, hop
rately controlled.‘
30 perchute and stripper shown in Fig. 4. ‘
The present invention relates‘ to a new and‘ im
Fig. 6 is similar to Fig. 4, but with the transfer
proved means for trimmingv primer cups-or simi
jaw in. its normal or retracted position.
lai- articles to a predetermined overall? length
Fig. 'i is aplan view of the hopper.
Fig. 8 is a. section on line 8‘-—8 of Fig.7.
within‘ a tolerance of not over .001 inch from
cup to cup or in different parts of the circumfer
ence- of any cup, whereby all cups will seat ?rmly
Fig. 94s a timing. diagram of the cycles of open
ati'on of the 'feed' spindle and clip transfer jaw.
Referring» to the drawings, the trimming‘ ma?
and securely on: the bottoms of their pockets and
at the‘ same time pass depth- gauge inspection;
chine of this invention comprises a base in which >
objectiof the invention is to-provide a means
for supporting and trimming a- primer cup. A 40
further object- is to provide improvedymeans for
supporting a primer: cup and moving the cup into
in ‘the present embodiment is a ‘casting having
‘substantially the shape of a truncated rectangu
lar pyramid provided". with front ‘and rear‘ faces
H and l2respectively'andke?ds‘ I3 and r4. Each
engagement with trimming means.- A I iurt-her
end is provided with an apertures boss» I 5 for‘ a
object is to trim aprimer cup by supporting. and
‘bearing 6 which are adapted, to rotatab1y‘sup_
port opposite ends of'a main drive shaft [1. The
rotating the cup frictionally between. two rapidly
revolving spindles and movingthe rapidly re
volving. ‘cup- into engagement with the.
ter blade. A still further object is to‘ trim a
base H1» is mounted on the top“ l8 of a substan
tially rectangular table comprising. vertical-“legs
,I'Q rigidly held in- assembl'ed- relationship by suit
primer cup to a- predeterminedmoverall length
- able braces 20, the base l=0 being ia'stened- to‘ the
by supporting the cup- on a resiliently mounted 50 table top I8 by bolts 22 o'rlother suitable fasten
spindle and engaging the head of the cup by a
second spindle whichv moves the cup a; predeter
Fixed-1y secured: beneath the table top I8 is a
mined distance with respect to a. fixed- cutter
mainv drive- geared head motor 23 whichf
‘These’ and ‘other objects, features and advan
present: embodiment”. is of~ one-third: horse power
and turns up 1725 R? P. M.- withia-co-shaft-speed
is provided with a screw threaded collar 59 ‘at
its outer or opposite end, whereby the shaft is
secured against longitudinal movement in its
bearings 56. A pulley 60 is fastened to the right-v
hand end of the shaft 51, see Fig. 1, to drive.
I of 280R. P. M. The co-shaft 24 carries a pulley ‘
25 which is connected by a belt 26 to a drive pul
.ley 21. The latter has a pitch‘diametera of sub- .
'stantially nine and one-half inches and is se
‘ cured on that end of the main drive shaft I‘!
‘*which extends'beyond the adjacent end M of
the latter as hereinafter described. >
1 the base; H). wAsecond pulley 7210 is alsofastened ‘
1 on this end of the shaft I1 and is adapted to drive
is aperturedvon'its longitudinal axis‘ to‘ receive
At its opposite end vof the shaft,___,_the head 58
a bushing ‘62 which is "secured'in the aperture
. a hopper as'hereinafter described. ' The opposite
‘by a set screw 63 or other suitable fastening
1 end of the main drive shaft I'l carriesla ?y wheel. .
;' 28 which is designed to facilitate manual rotat-m
The bushing 62 is adapted to receive a
spindle.“ which may be fastened in the bush
‘ tion of the main drive shaft for making ‘adjust-Ii
"mg byla set screw, 55, the end of the spindle
1 ments of the spindles and transfer, means.
' . beingu'pset .to' provide arim 66 and a face 61,
Keyed to the main drive shaft‘ lrwithinftne1 base it) is a drumcam 29' havinga peripheral}
‘.5, whichv is made slightly concave and
polished’so’as to make a nice fit with the head
‘ cam groove 35) designed to receive the cam fol
‘ lower or roll 32 of a reciprocable head stock,--i'n-. " "
.ofia-prim‘ericup .to be trimmed.
As the head
stock .is moved forwardly on itsbed, the spindle
dicated generally at 33. The latter comprises a
‘ carriage plate 34 having parallel bevelled edges
'64, hereinafter termed the cup feeding spindle,v
‘ 35 adapted to slidinglyengage beneath thereof 20 is adapted to engage a cup and move it onto a i
‘second spindle as described beltiw.
‘ 'operatingbevelled edges of 'suitablef'guides 36
As shown in Fig; -l‘,‘a substantially solid rec
which ‘arefixedlysecured'in spaced ‘parallel re- .
tangular‘bearing block 68 is ‘fastened by'bolts 68’
'lationship, on the top-surface or bed~31 of the
on the opposite end of the bed 31 and‘ is'pro
if base 19.1 ,Anroil cup 'may' beuinser'ted'in 'each
‘ guide 36andr connected by'a suitable passage to
7 Q the bevelled edges 35 ofnthe v‘carriage plate 34'vto
3 provide lubrication therefor. The bed 31 of the
‘ base ID is scraped or'otherwisei smoothly ?nished
1 to provide a surface on which the carriage" plate
@glmay reciprocate.
7 '
this enda substantially rectangular ~-boss
1 1. 38 is provided which ‘is
vided with a longitudinal aperture to receive a
pair of bearings 69. >The latter are located at
opposite’ ends 'of the aperture of ‘the block. 68
and are in axial alignment with the spindle "drive
shaft 57.‘ Rotatably mounted'inv the bearings 89
is‘ a second spindle drive shaft 10 :which is‘pro
vided with an upset head 12 at its inner end and
a screw threaded collar '13 ‘at its opposite end
secured by bolts 39‘ or
I other‘fastening ‘means to the ‘underside ofthe
for securing the shaft 10'against'» longitudinal
3 biflgated by‘ suitable oil cups and connecting oil
‘head '12 ‘is providedilwith an axial iaperture vto
displacement in its’ bearings 69.‘ :The outer/or
1 carriage plate 34' and'isadapted to project down
3 through a substantially rectangular aperture 40 .35 left-hand end of the‘ shaft"), see Fig. l, hasa
pulley 14 fastened thereto, the pitch diameter
inithe'bed 31. The engaging surfaces or Walls
ofwhich'is equal to that of thepulley 60. The
poflgthe boss 38 and the aperture,“ may be lu
receive a bushing 15-‘ whichis held in the aper
passages. The boss 38 is‘ provided with ajsub
turebyaset screw 16.
.stantially vertical aperture 43,. in the underside
' _ Resiliently mounted
thereof adapted to receive the stem 4'4 of the’cam
. .
0nd spindle comprising ar'elativelyvlarge shoulder .
portion 78 adapted to makea smoothi sliding ?t in
roll or'follower 32, the stem 44 ‘bcingsecured‘
‘ ' inytheaperture d3 by
in theZb‘ushing-I'IE is lac;
akfyorcel'?t or other suit
the aperture 'ofth'e bushing and tU'abut'JtIIe-end
.' ablefse‘curing'
means.’ jiThllsi'asf the drum team ‘
acoil spring 19 seated‘ thereinyand a shank
291s rotated byrrotation of 'the‘inain drive shaft } ' iof
portion‘ Bil/‘of reduced diameter having a button
H, the cam follower ;3;2 slides thecarriageplate '827at' the‘ end 'thereo?-‘the diameter and‘ con?g
34 hackiand forth on the bed 31 of the'bajse l0.
uration of which correspond closely to the corre
sponding measurements of the'insid'e of a primer
‘ ‘The? length ‘of its'strols'efas determined by the.
. 'c‘on?gurati‘onjofjthe' cam’ grooveiiiil ofntlredrum
a cup may seat tightly thereon. '
.229 of. the present. embodi?’ientlgis substantially; 50 ~- cupvwhereby
''The second spindle 8Q; hereinafter termed the
?veisixteenth's of'aninch', _
cup supporting spindle, is held~in its'bushing
vAdjustably ‘mounted. on top ofjthe carriage
against-the force ofv the coil‘ spring i'l9iby‘mean's
plate 34 is the headstock per 'se comprising the"
U-shaped' blockf45 having" a longitudinal '1 slot‘
of a transverse pin‘83 secured in the 'shoulder'por
tion ‘E8 of the spindle, the ends of the pin 83 be
146 inits foot M to receive abolt ‘48. The latter‘
ing adapted to extend into longitudinal slots 84
is suitably'secured at its lower end‘to the 'car
formed on diametrically opposite sides of the
‘ 'riage plate 35 and extends. upwardly‘ substanf
. tially verticallythroughrthe slot ‘46 of the foot
bushing 15. '7 The length‘of each slot'84 is such‘
‘as to enable limited displacement of the spindle
41. A nut 459 and washer are provided for’ secur
L83 in its bushing.
the U-shapedblock' 45 to ‘the carriage plate
34.‘, .By loosening the nut 419, the block 45 is freed
‘to'be moved'longitudinally relative to the car
This adjustment ' is
:comprises a one-half horse power squirrel cage
A.'C.vrnotor turning up 3450 R.‘ P. M. The motor
'by a 'braeketv 52 on the front end of the car
“is provided with a pulley 81 of substantially three
"inch pitch diameter which-is connected by a belt
~88 to a pulley 89 of substantially six inch pitch
'riage and threadedly engaged in a'tapped hole
‘ 253 in‘the’ foot 41 ofthe head stock‘block‘ilE.
‘ "A knurledhead 54 on the screw 59 is‘ provided to
'The- vertical uprights 55 of '
_ diameter carried on a 'jack'shaft '90., Thelatter
the head
block are each provided with axially aligned aper;
Ytures to receive bearings 56 for rotatably sup-‘
porting Vafspindle drive shaft 51 substantially‘
‘I ll. The’ shaft
‘parallel to the bed>31 ‘ofv the
I base‘
'51 has an upset head 5% at its: inner end and‘
:drive motor 86 which, in the'presen't embodiment,
accomplished ’ by
‘meansof a ‘screw, 58 which is rotatably supported.
'facilitate'manual adjustment.
Referring to, Figs. 2 and 3 secured on the back
face l2 of the base If), by bolts 85' is a spindle
lis'rotatably supported at its opposite 'ends: in suit
able bearings 92 of a pair of 'rearwardly extend
"ing ‘brackets93 secured 'by‘ bolts 93* to the back
"or the base 10. Secured at ‘each end of-‘the
jack shaft 90 is a pulley 94; each of substantially
seven" inch' pitch 1 diameter > and connected; by a.
belt-95 ‘to one of-I the above, described spindle
through ‘the p loweredge
pulleys 60 and ‘I4 ‘respectively. In accordance
forms a depression-"Hi9 in the. ‘vertical ‘wall
with‘ this-construction, each spindle will be driven
by theymotor '86 at substantially the same speed.
of vthe groove III and .
'Slid‘ably mounted in the groove H1 is a sub
stantially rectangular slide 120 having a rectan
gular aperture I22 in its lower edge and provided
at‘ its forward end with a substantially rectangu
lar-recess I123 milled or otherwise formed in the
outer face thereof. Secured in the‘ recess'I23 by
a bolt I124 ‘is a transfer ?nger I25, the forward
end» of‘ which extends beyond the forward end of
I " Bolted to the top of the fixed bearing block 60
as; bracket 96- whichis bent upwardly at an angle
to" the vertical-and Supports a circular plate‘S-l'at
its-upper end comprising 'a. hopper bottom.v
' ' A's'shown in Figs. 7 ‘and _8,'Vthe hopper per seis
of? the type described and illustrated in the ‘Butler "10
patent, No. 774,827., November 115, ‘1904, and com
pri'sés'brie?y'a drum ~98 rotatably mounted upon
'theslide I.2& ‘Substantially the upper half of the .
an axle‘ 09' which is secured in the geometrical
forward end of the transfer ?nger I25 is milled
center of the hopper bottom 31 substantially ver
.or otherwise formed with a relatively thin up
tical to theplane thereof. The lower edge I00 15 standing .rib I26; having horizontally disposed
of the drum 98 is serrated and spaced above the
shoulders I21 on opposite sides of the ?nger. The
surface of the hopper bottom =91 a predetermined
distance; and secured on the outer periphery of
“the drum adjacent its loweredge is a supplemen
end of the rib I26‘ is cut back from the forward
end of the. ?nger I25 as at I28 to provide an
arcuate surface de?ning substantially a one
tary segregating ring member I02, the lower edge
quarter‘ circle, the upper edge of which ‘termi
nates in a substantially horizontal step I29
of the hopper bottomandis provided with‘ suit
formed‘ in the forward edge of the rib I26. The
ably shaped apertures to enable properly orient
forward end of the transfer ?nger I25 is- bifur
ed primer cups- to escape from the'hopper as more
cated as at I30, see Fig. 5, and provided'with a
fully described in the aforementioned patent. "25 transverse hole for a pivot pin I32 which is adapt
The cups ‘are automatically fed through the aper
ed to pivotally support a dog I33 in the slot I30.
tures of the ring I02 by rotating the drum 98,
The dog I33 has a depending heel portion I34
the rotation‘lo-f which is effected by means of a
which is adapted to be engaged by the end of vleaf
belt and pulley drive. To this end, a pair of
spring I35 riveted or otherwise fastened on the
‘I03 of which is adapted to'ride on the surface
spaced parallel pulleys I01 are supported by '30 underside of the transfer ?nger whereby the v:dog
1means of a bracket I08 on the upper edge of the
is normally urged in a clockwise direction, see
hopper bottom 91. A continuous belt I09 is pro
Figs. '4 and 6. The dog I33 is provided with an
vided which encircles‘ the drum 98 and passes
arcuate surface I36 which de?nes a substantially
over the pulleys I01 and is driven by the pulley
one-quarter circle adapted ‘to complement the
21-0 of the main drive shaft H.
35 arcuate surface I128 of the transfer ?nger when
To facilitate the passage of the properly ori
the dog is in its normal position to provide a jaw
ented cups through the apertures of the segre
indicated by the numeral I330‘ for gripping the
gating ring I02, a relatively shallow circular
primer cups. The geometrical center of the jaw
groove I04 is formed in the hopper bottom, see
I330 is adapted to lie in the horizontal plane of
‘Figs. '7 and 8, directly beneath the lower edge I03
the spindles 64 and 80 whereby the jaw inter
of the ring. ‘ The depth of the circular groove is
sects the path of movement of the reciprocating
i'notienough to enable improperly oriented cups to
spindles when the jaw‘ is moved into its advanced
escape beneath the lower-edge of the segregating
- position as hereinafter described.
ring, "but facilitates the passage of properly ori-.
Referring ‘to Fig. 2, the slide I20 is held in the
,ented cups, and’hence'insures more rapid and 45 guide groove II‘! of ‘the bracket block II 6 by
dependable delivery of , cups to‘ the trimming
means of a substantially rectangular retaining‘
means. The properly oriented cups are collected
on the outer edge of the hopper bottom by means
‘plate 131 secured by screws to the outer face of
the block I ‘I6; and is adapted to be reciprocated
therein by means of the rock arm I38 of a bell
iofa suitable circumferential closed passage, in
dicated generally at I 05,_ having an opening in 50 crank lever I33 which, as‘shown in'Fig, 2, is pivot
‘the periphery thereof to enable the cups to ?ow
vally'supported by a pin I40 inthe apertured boss
downwardly therefrom into a tube I06 by which
I I5 of the bracket III‘. The end of the rock arm
the cups are delivered to a suitable transfer
I38 extends upwardly through-the rectangular
means; Referring to Figs. 5 and 6, the delivery
aperture N8 of the guide groove II‘! and makes
tube I06 comprises two face plates I060 and I062 55 an articulative connection with the rectangular
which are held apart by a, pair of substantially
“aperture I22 of the slide I20 to impart reciprocat
parallel longitudinal spacers [-063 and I064 which,
ing movement to the latter as the arm I38 is es
~with the face plates, form an enclosed passage
'for the primer cups.
The rock arm I38 is oscillated by means of a
The transfer means is shown generally at H0
-in- Figs. 1 and 2 and in detail in Figs. 4, 5 and vv6,
and embodies a bracket member III having? a
plate cam I42 which is keyed or otherwise fas- .
substantially rectangular foot portion II2 which‘
‘is secured by a pair of bolts II3 to the rear edge
of the bed‘ 31 at substantiallygthe center there
of; The bracket member I I I is provided with an
apertured boss H5 at its lower rearward edge to
"receiver a pivot pin for the purpose hereinafter
described.’ The upper portion of the bracket is
relatively thick and constitutes a block H6 hav
ing a rectangular horizontally disposed guide
‘groove "III ‘in its outer face running the full
length of the block I I6. Intersecting the groove
I1I'l adjacent the rear ‘end thereof is a substan
tially vrectangular aperture » ‘II-8 which cuts
tened to the main drive shaft I ‘I and which is
engaged by the cam follower I43 of an arm‘I44
of the bell crank lever I39. The follower I43 is
held continuously in engagement with, the pe
riphery of the cam plate I 42 and by the force of
a coil tension spring I 45‘, the lower end of which
is secured by suitable fastening means I46 to the
base ‘I0, its upper end being hooked over the fol
lower pivot pin I41‘. In the present embodiment,
the stroke of the slide I20,Vas. determined by the
plate cam I42, is substantially ?fteen-sixteenths
1 of an inch.
‘As shown in Figs. 4 and 5, the lower end of the
hopper distributing chute I06 isv supported ads
‘jacent the transfer?nger I25 of the" reciprocat
7 2,406,062
‘ ing slide I20 by means of a bracket ¢I48,,one;end ‘
I bf. which isv bolted to the topof-the bracket; block
H6. The outer reach of the bracket llliiihasan
: :Beneath ‘the
112.001 ' l 56: an arranged at a
.of -,substantially 4521s.?» rectangular. aperture I5,"- '
whichisformed onla diagonalvfrom the ward
1 upstanding. ?ange I49 adapted tovproviderai?xed
1' support for theichutel?? ‘to whichthe latter is
‘,.;'secured by'screws I50.’ I
‘ _ vReferring to Figs; 5 and 6,
rini- or open end; against the "cutting
left-hand corner'of; the b1001$5_|52 :to its-rear right;
handwrnen'the margin- of : the aperture. de?ned
the lower end ofthe
by therearleftehand corner oftheblo
chute I06 comprises the twov spaced parallel: side
‘1 plates I060 and I062 which are adapted to. slid- I
"ingly engage on opposite sides of- therib I26 of
la discharge chute I62 ‘for discharging th
‘ ‘the transfer ?nger I25 and to extend downwardly
cups and shavingsfrom the} spindles The ; chute is a
j on opposite sides thereofadjacent the shoulders
open.” The aperture I,60,_is ‘designed-V
trough-shaped member which may
I21; and'the lower ends of the spacers I063 and
IIIB4:1"The ends of the-spacers I063 and I064,
have a cover and is adapted to be supported at
‘ 'see Figs. {1 and 6, are adaptedto have substan .15 its forward end‘in the apertureyIIiU of theytool
holding block. ‘The forward end of'the trough, is
‘ tially, slidingiengagementwith the upper edge
provided with anrend wallv I63 and is bentv at-a
of the rib ‘I26 and are spaced‘from the step I29
3 .a distance somewhat less than the, diameter of a
‘ As shown in Fig. 4, when the transfer ?nger
I25 is in its advanced position, its jaw I330-holds ;
a primer between the faces of the two spindles ‘
64'and 80 and in axial alignment therewith. In
3 this position of the transfer ?nger, the delivery
chute passage opens onto'the step I29 of the
transfer ?nger 'I25‘whe-reby a primer cup is de
1 rlivered by gravity onto the step I29 on which it
suitable 'anglesuch that the walled endofthe
trough extends in a direction substantially paral
lel to the longitudinal axes of; the spindles and
lies directly beneath the ‘cutting edge’ of the tool
, 'Referring'to Figs. 1, ‘l and 6,; stripping means I
are provided for positively removing a trimmed
.25 cut from the rotatably mounted cup supporting
spindle 80'and comprise a claw-shaped plate_,l_6_4
supported so as to closely embrace substantially
130? of the'periphery of the button ‘82' of the ' '
‘is- con?ned in a position- opposite the lower end
of the chute passage by the adjacent surfaces of
the sideplates I060‘ and I062 of the chute and .30
the adjacent ends of the two spacers I063 and
I064 until v‘the transfer ?nger I28 is retracted to I
‘ itsnormal position, as shown in Fig. 6. »
‘ 1 In its normal or retracted position, the jaw
spindle 60. To this endythe stripper plate? I64
is supported in a substantially vertical plane
transverse to the longitudinalaxes of thespindles
by the overhanging end of a bar I65 which is
secured at its rear end by boltsor screws I66
to the top edge of the upstanding members 55 I ‘
of the reciprocating headstock 475, the, bar I65
being bent so as to position the stripper claw
I330 is substantially opposite the end of the de
1 livery chute passage, and hence the primer held
vthereat,-as described above, is enabledrto drop
down into the cavity of the jaw, the latter being
properly with respectto the button 82. Further
more,- that’ face I6'Iof' the claw which engages
opened slightly to receive the cup due to the .40 the rimlof the cup to strip it from ‘the spindle
isadapted to be moved longitudinallysubstan
tially. lintorgline with or slightly to the- left 301?
weight of the column of cups acting thereon. The
~ cup is thereupon clamped in-the jaw. and carried
wthe-cuttingi'edge vof the ?xed’, blade I56;a_sl;thle V
forwardly to its advanced position by the recipro
eating slide I26.‘ As the jaw moves away from-the '
. -open end of the passage, the next succeeding cups
spindle-64 " advances’ the _ cup into engagement
with the cutter blade whereby onthesubsequent
f ‘drop ‘down onto‘ the step I29.
return movement of {the head stock and spindle‘
1 in’properly' oriented position by con?ning them
‘ "in ia-substanti'ally-closed passage from'th'e time
trimmed. cup and positively draw the-cuproff of
the spindle button 82. 1
jaw and on the front edge of the bed 31 is a tool
holder,isee Figs. 1a and 3,’ comprising a substan
jaw, a suitably bevelled surface: I68 is:v provided
on the faceIG'I of the claw’ for de?ectingthe
It > will thus be
I I clear that the primer cups are controlled and held
$4,, the, stringer»v claw/Will engage the rim obi/tee‘
To; prevent the strippedocupifrom springing
they, are delivered into the delivery chute until.
theyare received in the jaw of, the transfer slide. 50 upiandr becoming jammed between’ the spindles o ’
and delivery chuteofthe hopper or the-transfer
Substantially opposite the primer cup transfer
stripped cups downwardly in the trough I62.
‘ tially rectangular. block I52 having a foot I53
} vprovided with vertical holes to receive‘ a bolt I54
.anda vpair of dowels for se'curing'the tool holder
to the bed 31; A substantially rectangular groove
I 55 is formed in the top of the tool holding block
I52 to receive the tool I56; the latter being se
cured vin a predetermined position in its slot by
I 55
7 The operation of the machine is probably clear
from the foregoing description butimay be vbriefly
summarized‘ vas follows :_
v _
{v 7 h
When-the spindle motor 86 is ‘started, the ‘spin
dles 64 and 80 immediately begin torrotatevat a
high speed.. on, starting, the hopper
36,0 relatively
is rotated and feeds the primercups to therdeliv
means of a cover clamp I51. ‘:One edge of the
‘clamp is adapted to fulcrum on the. top of the p
‘ block "I52vwhile the other edge ofthe ‘cover is
Very ‘chute I06 whilevthe head stock 45 and its
[rotating spindle :64 begin 1 to reciprocate, ‘rapidly
longitudinally of’, the‘ bed 31 of the; machine.
,made to"bear' down- forciblyon the ‘top of “the
tool by means of a bolt I58, secured in the block . 65 Simultaneouslmthe slide I20 and its-transfer
jaw I 33B-are reciprocated at substantially right.
andextending loosely through an aperture in’
.the cover 15?; and-a nutv I59'which'is threaded . e angles to the longitudinal axis of the spindles.—.
Thecycles of operation of the reciprocating
on‘ the end of the bolt: and adapted to‘ draw the f
feed'spindle‘ 64 and-transfer jawjarefindicated
zcovers'clamp down on the tool: 1 _ a
- ~AsYshown in Figs. 3 ‘and ‘3a,- the cutting vedge 170 in Fig. 9. _ At position -“0” and vreading against
the arrow, the spindle 64' is in its retracted posi
of thei?xed/tool» I56 is! located slightly to the rear
or left of the button 82 of the cup supporting
spindle 80, the latter being slidable rearwardly ’
I I or to the leftrby the feed spindle-64 ashereinafter
‘tion’for substantially fl'l" of the cycle of the drum
cam. _ During this time, the, transfer jaw is mov
"ing: from: its retracted position to gi'ts; advanced
_described‘to support the, cup andto frictionally 57.5 .P9§iti9¥,1=_;-AS the lawman the'enMIiii's stroke
in the-,directionipfthespindles, the spindle-64
begins to advance.followingzashort dwell of sub
stantiallylS-‘Ti-n its; retracted position and'con
porting means and feeding means longitudinally
simultaneously in the same directionand toward
. said blade to carry the article into engagement
therewith; ' and means carried, by said feeding
tinues to‘ advance while the transfer‘ jaw'remains
‘in itsadvanced‘ position duringa- jdwell of 25° 5 means constructed and arranged to strip a
cycle/of the plate cam. Since the jaw I330 is
trimmed article oil" of said. supporting means.
‘mounted soas to'intersectthe path of movement
2: A machine for trimming, cup-shaped articles
of the: spindle 64, the latter'willgpass through
comprising rotatable article" supporting‘ means;
thejaw thereby engaging a cup therein and mov
ing it out ofthe jaw onto-the button 82' of the so rotatable means mounted to reciprocate in a: path
in axial alignment with said supporting means" to
spindle 80. Immediately thereafter, the trans
feed an article thereon and to. frictionally engage
the article therewith; means for positively rotat
ing said article supportingv meansand the article
otally supported» by. the leaf spring in the slot
feeding. means at substantially the same speed; a
I36 in theforward end of theetransf-er?ngerY-IZE .15 blade;
drive means adapted, to move the support
is. enabled-to swing outwardly and downwardly
and feeding means longitudinallysi
when. it engages the spindle 64 so as to clear the
multaneously in. the same direction and toward
spindle as the transfer ?nger is retracted. The
said blade'to carry the article into engagement
transfer jaw reaches its. rearmost position sub
means.‘ carried by said feeding means
stantially 80° of the cam cycle and thereafter it
constructed and arranged to strip, a. trimmed. arti
dwells in' this position. for the remainder of the
cleoff of .said' supporting means‘; and guide means
cycle. This relativelylong dwell is necessary'to
mounted onsaid .stripper means to deflect the
insure a cup being fed’ by gravity from the deliv
trirmned'articles away from said article support
ery chute I66 into the resilient jaw as described
ing. andfeeding: means.
' i
3.. A, machine for trimming. primer cups— '
In the meantime, the spindle 64 has pushed a
prising a base; a rotatable spindle resiliently
cup ?rmly against the button 82 of the rotating
mounted on said base; a second rotatable spindle
spindle 80, whereupon the cap is frictionally en
fer ?nger begins its return movement to normal
position. The dog I33‘ of the ‘jaw I330 being piv
gaged between the two spindles and rotated there¢
in axial alignment with said ?rst spindle and con
by at substantially the same speed. Moreover, the 30 structed and arranged to be moved toward and
away from said ?rst spindle; means for transfer
feed spindle 64 continues to advance and to move
_ ring a cup into the path of movement of said.
the cup and its supporting spindle 80 againstthe
second spindle; a ?xed blade; means for rotating
restraining force of the coil ‘spring mounting of
said ?rst and second spindles at substantially uni
the latter a predetermined distance with respect
to the ?xed blade I56. This predetermined dis 35 form speed; means for advancing said second
spindle against said cup to move said cup onto
tance is determined by the stroke of the recipro
said ?rst spindle and to frictionally'engage said
cating carriage and the adjustment of the head
cup between said ?rst and second spindles where
stock with respect thereto. The rim or openvend
by said cup is rotated therewith, said spindle ad
of the cup is thus brought against the ?xed blade
I56 which turns down or cuts the rim with a sub 40 vancing means being adapted to move said spin
dles and cup a predetermined distance relative to
stantially spiral cut until the overall length of
said blade against the resilient mounting of said
the cup is exactly equal to the distance between
?rst spindle whereby the rim of said cup is
the cutting edge of the ?xed blade and the face
into engagement with said blade; and
61 of the feed spindle 64 when the latter is in its
by said spindle advancing means
foremost position.
to strip the trimmed cups from said ?rst spindle
It will be evident that, in accordance with this
when said second spindle is retracted.
method and means of supporting the cup and
4. A machine for trimming primer cups com
moving it into engagement with the ?xed cutter
prising a base; a rotatable spindle resiliently
bladé. the overall length of the trimmed cup is
independent of the thickness of the metal forming 50 mounted on said base; a second rotatable spindle
in axial alignment with said ?rst spindle and
the head of the cup. After the cutting or trim
constructed and arranged to be moved toward
minrz operation has been completed, the cup is
and away from said ?rst spindle; means for
held against the ?xed blade for a short periodof
transferring a cup into the path of movement of
substantially 45° of the cycle of the drum cam
during which time any irregularities of the spiral 55 said second spindle; a ?xed blade; means for
rotating said ?rst and second spindles at sub
cut are eliminated and the edge or rim of the cup
stantially uniform speed; means for advancing
are rendered absolutely square and true. ‘There
said second spindle against said cup to move said
after, the spindle 64 is returned to its normal or
cup onto said ?rst spindle and to frictionally en
retracted position simultaneously moving the face
said cup between said ?rst and second
I61 of the stripper claw I64 against the trimmed 60 spindles whereby said cup is rotated therewith,
edge of the cup thereby positively stripping the
said spindle advancing means being adapted to
cup oil of the spindle button 82. The stripped
move said spindles and cup a predetermined dis
cup thereupon falls or is de?ected by the bevelled
tance relative to said blade against the resilient
surface I 68 into the discharge chute or trough I62. 65 mounting of said first spindle whereby the rim
What is claimed is:
of said cup is brought into engagement with said
1. A machine for trimming cup-shaped articles
blade; means carried by said spindle advancing
comprising rotatable article supporting means;
means to strip the trimmed cups from said first
rotatable means mounted to reciprocate in a path
spindle. when said second spindle is retracted;
in axial alignment with said supporting means to 70 and a bevelledsurface mounted on said stripper
feed an article thereon and to frictionally engage
means to deflect the stripped cup out of the path
the article therewith; means for positively rotat
of said spindles.
ing said article supporting means and the article
5. A machine for trimming cup-shaped articles
feeding means at substantially the same speed;
comprising a pair of rotatable shafts; a spindle
a blade; drive means adapted to move the sup 75 ?xedly secured in one shaft; a spindle resiliently
l'mountedin the second shaft; movable'mea'ns' to
support the ?rst shaft in axial alignment with
{the second shaft; means to positively rotate said
j'?rst ‘and second shafts at substantially the same
speed; means to transfer a cup into axial align
Iment‘with the adjacent endsof said spindles ;' a
stationary blade; and means to displace the mov
‘ablesupporting means of said ?rst shaft to ads
‘vance its spindle longitudinally towards the
‘ spindle of the second shaft thereby to move a 10
\ cup‘ onto the end of said secondspindle and fric
‘ tionally engage the closed end of thecup between
the adjacent ends of the spindles to rotate said
‘ cup therewith, said shaft advancing means being
3 arranged to move said spindles and the cup en
‘ gaged therebetween a predetermined distance
againstthe force of the resilient mounting means
1 of‘said second spindle to move the edge of the
cup against said stationary-blade so as to trim
the wall of thecup to a predetermined'height.
V '6. A machine for trimming cup-shaped articles
comprising a‘ pair of rotatable shafts; a spindle
?xedlysec'ured in one shaft; a spindle resiliently
mounted in the second shaft; movable means to
1' support the .first‘shaft in’ axial alignment with
the'second shaft; means to positively ‘rotate ‘said a
‘?rst and second shafts at substantially the ‘same
‘speed; means to transfer» a'cup into axial align
ment with the adjacent- ends‘ of said "spindles;- a
stationary blade; means to displace the movable
supporting means of said first shaft to advance
its spindle longitudinally towardsthe spindle of
the second shaft thereby to move ‘a cup onto the 7
end of said second spindle and frictionally'en
gage the closed, end of the cup between the ad
jacent ends of the spindlesto rotate said cup
therewith, said shaft advancing means being ar
ranged to move said spindles‘ and the ~cup'en
gaged therebetween a predetermined‘ distance
against the force of the resilient mounting means
of ‘said second spindle to movethe edge‘of'the
cup against said stationary blade so as to‘trii‘n
the wall of the cupato a'predetermined height;
means mounted bythe ?rst shaft to strip the
trimmed cup from“ said‘ resiliently mounted I
spindle and a chute ?xedly supportedvbeneath
‘said stationary blade to discharge'the trimmed
cups stripped from _said resiliently mounted
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