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Патент USA US2406392

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.Aug- 27, 194.6.
A. MINARIK, JR., ETAL
'_
2,405,392
APPARATUS FOR APPLYING ROTATING BANDS TO PROJECTILE SHELLS
Filed March 6, 1943
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S‘Sheets-Sheet 1
3
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Aug. 27, 1946.“
‘A. MlNARlK, JR., ETAL
' 2,406,392
APPARATUS FOR APPLYING ROTATING BANDS TO PROJECTILE SHELLS
File'd March e, 1943
6 Sheets-Sheet 2 '
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Aug. _27, 1946.
A. MINARIK, JR., ETAL .
‘
2,406,392
APPARATUS ‘FOR APPLYING ROTATING BANDS TO PROJECTILE SHELLS
Filed March 6, 1943
14'
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Aug. 27, 1946;
A. MiNARlK,JR., ETAL ‘
'
2,406,392 _'
APPARATUS FOR APPLYING ROTATING BANDS T0 PROJEC'TILE SHELLS
Filed March 6, 1943
f4 .
4
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6 Sheets-Sheet 4
Aug‘, 27, 1946.
. A. MINARIK, JR., ET AL
2,406,392
APPARATUS ‘FOR APPLYING ROTATING vBANDS TQ PROJEC'I‘ILE SHELLS
_ Filed March 6', 1943
6 Sheets-Sheet 5‘
IIIIIHHHHIIHIIIIIIHHIIHU
Patented Aug. 27, 1946
2,406,392
UNITED STATES PATENT OFFICE
2,406,392
APPARATUS FOR,v APPLYING ROTATING
BANDS TO PROJECTILE SHELLS
Anthony Minarik, Jr., and Swen H. R. Ericson,‘
Chicago, 11]., assignors to Mills Novelty Com
pany, Chicago, 111., a corporation of Illinois
1
Application March 6, 1943, Serial No. 478,320
11 Claims. (01. 78-15)
This invention relates to a method and ap
paratus for joining concentric cylindrical mem
bers and, more speci?cally, for applying rotating
bands to shells for projectiles, such as are used
in ?eld guns and other artillery pieces. The shells
are made of steel, and in order to cause the pro
2
from a magazine formed by rods l4 extending up
wardly from the top of said block.
The block also supports a female die element l5
which is supported upon a shoulder is in the
lower part of an aperture IT in the block and is
held in place by a ring l8 having screw-threaded
engagement with the block I l in an enlarged up
Jectile to rotate in the barrel of the gun. it is cus
tomary to place a band of copper or other rela
per part of the aperture I 1.
_
tlvely soft material on the exterior of the shell
The block II has a transfer passageway l9
so that it may be cut into by the spiral ri?ing in 10 therein, through which the lowermost band may
the gun barrel, to cause rotation of the shell as it
be moved from a position beneath the magazine to
travels through and leaves the barrel. .
a position beneath the female die element IS.
l-Ieretofore such rotating bands have been ap
The movement of the bands in this passageway is
plied by a swedging process or in other manner,
effected by means of a pusher 2| which is con
which has not only been slow but has been in 15 nected by depending ears 22 to a link 23 connected
efficient in that the bands were not always se
to a lever 24 which is pivoted at 25 to a block 25
curely or uniformly applied.
>
In accordance with our invention the bands are
applied through a process involving the use of a
on a supporting shelf 21 resting upon a support
28 which is connected to the block II by means
of bolts 29.
die which is preferably actuated by hydraulic 20 g The ‘lever 24 has a nose portion-3| engaging a
means and employs relatively movable elements,
shoulder 32 on a male die element 33 which is
whereby the band is properly located and bonded
connected to the upper end of a tubular plunger
onto the shell, after which the latter may be
34 by means of set screws 35.
eJected from the machine. The process is a very
Said lever 24' has a tail portion 36 extending
rapid and e?icient one and the apparatus em 25 beyond the pivot 25 and pivotally connected to a
ployed is certain and effective in operation, the
rod 31 slidably mounted in a guide member 38.
result being that the shells may be banded in
A spring 39 is mounted on said rod between said
much shorter time than heretofore and there is a
guide member 38 and a nut 4| on an outer screw
much smaller percentage of rejects because of
threaded portion 42 of the rod.
.
30
loose or improperly placed bands.
A locking lever 43 is mounted on the block 26,
Other obiects and advantages of the invention
to which it is pivoted at 44, and a spring 45 is
will be apparent from the following description
positioned between a portion of said lever at the
taken in connection with the accompanying
left of the pivot, as shown in Fig. 1, and the guide
drawings. in which:
member 38, the ends of said spring extending into
Fig. l is a vertical, sectional and elevational ' recesses in said members 38 and 43, or being
View of a portion of an apparatus embodying the
otherwise suitably secured thereto. The opposite
structure of the invention and by which the proc
end of the lever 43 engages a lower beveled portion
ess may be practiced;
Fig. 2 is a similar view of another portion of the ’
46 on the die element 33 when the latter is in the
position shown in Fig. 1.
apparatus. being a continuation downwardly from 40
The pusher 2| is connected by a link 41 with a,
the lower part of Fig. 1;
dash-pot or other suitable cushioning element 43,
which is supported by a block 49 secured by screws
Figs. 3 and 4 are views similar to Fig. 1 showing
5| to the block II.
the apparatus in two additional positions;
'
A plunger rod 52 is mounted within the tubular
Fig. 5 is a top plan view of the apparatus;
45 plunger 34 and has a head portion 53 adapted to
Fig. 6 is a transverse sectional view of the upper
engage the lower end of the shell, which is indi
part of the apparatus taken substantially on the
cated in the drawings .by the reference number
section line 6—5 of Fig. 3;
54. This inner plunger 52, as will later appear, is
Figs. '7, ‘8 and 9 are partial sectional views show
adapted to have relative movement with respect
ing- three successive steps in the process and the
to the outer tubular plunger 34 and with respect
relative positions of the hydraulic plungers at the
to
the die element 33 secured to the upper end
different stages of the operation.
of said tubular plunger.
~
Referring ?rst to Fig. 1, the apparatus com
When the plunger 34 and die element 33 are
prises a block I I having therein an opening I2
in the position shown in Fig. 1, the pusher 2| will
through which the bands l3 may pass downwardly 55 have been advanced to its forward position, plac
2,406,392
3
shown in Figs. 1 and 2, as well as other ?gures of
7 ing a band l3 into position on the upper end of
the drawings.
the die element 33 which is of tubular form and
has a tapered upper end, as indicated at 55. A
stop member 50 is provided on a frame part 69
'
The three positions of the hydraulic plungers
and of the movable die are shown in Figs. 1, 3
and 4, respectively, and also in Figs. '7, 8 and 9,
respectively, the latter showing also in single
to stop the band at exactly the right position.‘
After the ring is so positioned, the shell is dropped
through the ring 18 and female die element l5
into the tubular die element 33, which is suitably
shaped to receive the lower end of said shell with
a close ?t. In‘ assuming this position, a series
?gures the two plunger-operating pistons and
associated hydraulic blocks or heads 28, 64,16
and 11 above described.
170 .
Figs. 1 and 7 show the starting position with
the movable diepmember 33 in its lowermost posi
of grooves 56 on the exterior of the shell is dis- 7 7 tion and the inner plunger 52 and plunger-head
posed within the band I3.
53 in depressed position.
draulic pressure in manner which will-now be
be noted that the pusher 2! is held in its forward
position by means of the spring 39 which draws
the rod 31 to the left (viewing Fig. 1) when
The plungers 34 and 52 are actuated by hye
‘
described.
-
'
.
'15
.
l
A piston 51, composed of two shouldered ele-;
In this position it will ‘
permitted to do so.
In Figs. 3 and 8 the parts are shown at the
ments 58 and 59 and a packing element 5!, is
permanently secured to the tube 34 by a shou.
der‘ed engagement, as indicated at 82, and is
upper end of the stroke of the tubular plunger
It will be noted that in
this position the die member 33 has been moved
which is 'mounted between the block 28 and a
upwardly into the member i5, the lower part of
block 54 spaced below said block 28. A pipe 65
the inner wall of the latter being tapered, as in
communicates with'a horizontal passage 55 in
dicated at 99, to receive the tapered end of the
the block 28 and said passage communicates by
33. The shell 54 has been moved up
means .of a-vertical passage S'I'Willh the interior 25 member
wardly, as has the band l3 thereon, certain of
of the cylinder 63 above the piston 51.
' ‘
the material of the latter having been forcedinto
A pipe ‘68 communicates with a horizontal pas
the grooves’ 56 by pressure against the tapered
sage 39 in the block 34, and said passage come
female die 96. The band is still supported by
municates through a vertical passage. ‘H with the
die member 33 and has been held in ?xed
interior of the cylinder 63 beneath the piston 59. 30 the
relation to the shell thereby. The movement
Up-and-down movement of the tubular vplunger
of the die 33 .to its uppermost position has actu
_ 34 is thus effected by alternate admission of hy
ated the lever .24 against the tension of the spring
draulic pressureintothe cylinder 63 below and
39 and moved the pusher 2| to its rearward posi
above the piston 59.
. . ~
tion,
said lever being locked in this position at
The inner plunger 52 is similarly moved up and
this time by engagement of the end of the tail
down by means of a piston 12 secured to .a two
part 36 thereof with a shoulder 91 on the locking
dimensional plunger rod 13 which is connected to
lever 43._
V
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the plunger rod 52 by a screw-threaded connec
In the position shown in Figs. 4 and 9, the
tion indicated at ‘M. Said piston 72 moves in a
cylinder 1.5 extending between blocks 16 and ‘H, 40 inner plunger 53 has continued to move upwardly
after the outer plunger 34 and die 33 have reached
the former being connected with the block 64 by
their uppermost position, and has forced the shell
means of a tubular member 18.
..
and applied band all the way upwardly through
Hydraulic pressure is admitted to the cylinder
the die member l5. The banding operation has .
.15'above the piston 12 through a pipe 19, com
then been completed and the shell may beare
municating with a horizontal passage 81 in the 45
moved by hand or by gravity, or in any suitable’
block 19, which in turn communicates with the
cylinder 15 by means of a vertical passage'?Z.
. The parts are thereafter restored to the posi
34 and die member 33.
adapted to move within a cylinder or sleeve ‘63 20
manner.
. The hydraulic‘medium is admitted to the cylinder
with the cylinder by means of a vertical passage
85. Thus. admission of the pressure medium
through the pipe 83 causes upward movement of
the piston 12, and admission of such medium .
through the pipe 19 causes downward movement
of said piston, the rods 13 and 52 moving with
'
>
a
.
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\
.
tion of Fig. 1 by admission of hydraulic pressure
above the actuating pistons 51 and 12, and in this
movement another band I3 is moved into posi
15 beneath the piston 12 through a pipe 83 com
municating with a'horizontal passage 84in the
block 11,_saidpassage in turn communicating
said piston.
\
i
tion to receive a shell, as shown in this ?gure, the '
locking lever 43 being disengaged from the part
'36 of the lever 24 in this position by reason of
contact of the end of said locking lever with a
beveled surface 46 on the lower exterior portion
of the diemember 33.
_
The hydraulic pressure medium is alternately
suppliedthrough, the pipes 68 and 83 to cause
The limits of the movement of said rods 52 and
the upstrokes of the plungers 34, and 52 ‘and
‘I3 are provided by means of an enlargement 86
through the pipes 65 and 19 to cause the down
on the lower end of the rod 52 which is movable
strokes of said plungers respectively by any suit
vertically in a central opening 8'! in a connecting
able‘ hydraulic circulating system (not shown)
coupling frame 88, the upper end of‘which is
subject to manual control by the operation vof
connected at 89 with the lower end of the tube
we
'
34. Said'enlargement 86 at the upper end of 65 the machine.
The operation of the apparatus and the suc
its path of movement engages the lower end 9|
cessive steps in the practice of the process need
of said tube 34, and at the lower end of such
be only brie?y described since they will be quite
path of movement engages a shoulder 92'at the
bottom of said coupling frame.
,
‘
-
i Bearings or guide members 93 are provided‘in 70
the blocks 28, 64, 1'6 and "for the plunger ele
ments which slide Within said blocks, said mem
bers being secured in place by means ,of screws
94, and suitable packing 95 is provided in said
3 blocks inwardly from'said bearing members, as 75
fully understood from the foregoing description.
Starting with the position of the parts shown
in Figs. 1 and '7 in which one of the bands I3 is
located against the stop 50 and a shell 54 has
been dropped into place, manually or otherwise,
passing through the bland and assuming the rela
tion thereto shown in these ?gures, the operation
5
2,406,392
may be started by actuation. of the manual con,
trol. (not shown)’. The plungers 341 and. 5.2: will
thereupon be moved upwardly together to. the
position shovm in Figs. 3 and 8, forcing’ the shell,
means for thereafter causing further movement,
of one only of: the supports to discharge the joined
members from said die, means controlled byv one
of: said. supports for feeding one of said meme
which rests. on the head 53 of the. plunger 52‘, and
the band, which rests on the top of: the die mem
5. hers to assembling. position upon each complete
ber 33, upwardly'into the die member [15, causing
trolled. by said. support for locking said feeding
operation of said support, and means. also con
the band to be secured to the shell by displace
means out of action in all but one position of
ment of‘ the metal of the band, a part of which
said support.
'
enters the‘ grooves 56 on the shell. The plunger 10
5. Apparatus for applying rotating bands to
34 has then reached its uppermost point, but the
shells, comprising a die member, two relatively
plunger 52‘ continues to move upwardly, forcing
movable plungers mounted adjacent said die,
the shell with the applied band the rest of the
one being arranged to support the shell and
way‘ through the die member‘ [5 and freeing the
the other tov support the band in predetermined
shell from the dies for discharge. This addi 15 relationship to the shell, said‘ plungers being mov
tional movement of the plunger 52' carries: it to
able a predetermined distance in unison to move
the position shown in Figs. 4 and 9. After re
a band andv a shell; into operative relation to
moval of. the‘ shell, reverse movement. of the plung
the; die to cause the latterlto exert pressure on
ers .‘52v and‘ 34 will bring the parts back to the
the band to press. the same into bonding relation
position shown in Figs. 1 and 7, ready for another 20 to. the shell, and one of said plungers being fur
operation.
ther movable to discharge the shell with the band
It will be noted that the band I3 is supported
bonded thereto from said die.
by the die member 33 in a de?nite relation to
6. Apparatus for applying rotating bands to
the shell 51? until it is ?rmly connected to the
shells, comprising a die member, tWo relatively
shell, thus assuring accuracy and uniformity in 25 movable plungers mounted adjacent said die, one
the results of the banding operation.
being arranged to support the shell and the other
The foregoing detailed description has been
to support the band in predetermined relation
given for cl'tarness of understanding only, and
ship to the shell, said plungers being movable
no unnecessary limitations should be understood
a predetermined distance in unison to move a
therefrom, but the appended claims should be
band and a shell into operative relation to the
construed as broadly as permissible in viewof
die to cause the latter to exert pressure on the
the prior art.
band to press the same into bonding relation
We claim:
to the shell, and one of said plungers being fur
1. Apparatus for joining cylindrical members
ther movable to discharge the shell with the
at least one of which is made of pressure-dis 35 band bonded thereto from said die, said plungers
placeable material, comprising a die, separate
being equipped with means for hydraulic opera
movable supports for each of said members, means
tion thereof.
for moving said supports in unison to force one
'7. Apparatus for applying rotating bands to
of said members into pressure contact with said
shells, comprising a die member, two relatively
die to cause said members to be bonded together,
movable plungers mounted adjacent said die, one
and means for thereafter causing furthermove
being arranged to support the shell and the other
ment of one only of the supports to discharge
to support the band in predetermined relation
the joined members from said die.
ship to the shell, said plungers being movable a
2. Hydraulically operable apparatus for join
predetermined distance in unison to move a band
ing cylindrical members at least one of which is 45 and a shell into operative relation to the die to
made of pressure-displaceable material, compris
cause the latter to exert pressure on the band to
ing a die, separate movable supports for each‘of
press the same into bonding relation to the shell,
said members, means for moving said supports
one of said plungers being further movable to
in unison to force one of said members into pres
discharge the shell with the band bonded thereto
sure contact with said die to cause said members 50 from said die, and means controlled by one of
to be bondedtogether, and means for thereafter
said plungers for feeding a band to assembling
position adjacent said die upon each complete
ports to discharge the joined members from said
operation of the plunger.
die, said supports being equipped with means for
8. Apparatus for applying rotating bands to
hydraulic operation thereof.
55 shells, comprising a die member, two relatively
3. Apparatus for joining cylindrical members
movable plungers mounted adjacent said die, one
at least one of which is made of pressure-displace
being arranged to support the shell and the other
able material, comprising a die, separate movable
to support the band in predetermined relation
supports for each of said members, means for
ship to the shell, said plungers being movable a
causing further movement of one only of the sup- 7
moving said supports in unison to force one of
predetermined distance in unison to move a
said members into pressure contact with said die
band and a shell into operative relation to the die
to cause said members to be bonded together,
to cause the latter to exert pressure on the band
means for thereafter causing further movement
to press the same into bonding relation to the
of one only of the supports to discharge the joined
shell, and one of said plungers being further
members from said die, and means controlled by 65 movable to discharge the shell with the band
one of said supports for feeding one of said mem
bonded thereto from said die, said plungers be
bers to assembling position upon each complete
ing mounted one within the other and the inner
operation of said support.
4. Apparatus for joining cylindrical members
at least one of which is made of pressure-dis
placeable material, comprising a die, separate
plunger having said additional movement after
the outer one comes to rest.
70
movable supports for each of said members, means
for moving said supports in unison to force one
of said members into pressure contact with said
die to cause said members to be bonded together, 75
9. Apparatus for applying rotating bands to
shells comprising a female die element, a maga
zine for the bands, a transfer device for moving
the bands successively to an assembling station
adjacent said die at which station the shell may
be placed within said band, a plunger engaging
2,406,392
a
7
the band, a second plunger engaging the shell,
means for moving said plungers a predetermined
distance in unison to move theshell and encir
' ‘ cling band partway through said die to cause
the band to be pressed into bonding engagement
with the shell, and means for thereafter moving
restv of the way through said die, and means for
causing reverse movement of said plungers.
11. Apparatus for applying rotating bands to
shells comprising a female die element, a maga
zaine for the bands, 9, transfer device for moving
the bands successively to an assembling station
adjacent said die at which station the shell may
be placed within said band, a plunger engaging
the band, a second plunger engaginglthe shell,
means for moving said plungers a predetermined
10
10. Apparatus for applying rotating bands to
the plunger which engages the shell a further
distance to move theshell and applied band the
rest of the way through said die.
shells comprising a female die element, a maga
rzine for the bands, a transfer device for moving
the bands successively to an assembling station
adjacent said die at which station the shell may
be placed within said band, a plunger,’ engaging
distance in unison to move the shell ‘and encir
cling band part Way through said die to cause
the band to be pressed into bonding engagement
with the shell, means for thereafter moving the
plunger which engages the shell a further dis
the band, a second plunger engaging the shell,
tance to move the shell and applied band the ,
means for moving said plungers a predetermined
distance in unison to move the shell and encir-v
cling band part way through said die to cause
causing reverse movement of said plungers, said
plunger-operating means being hydraulically
the band to be pressed into bonding engagement 20
with the shell, means for thereafter moving the V ,
plunger which engages the shell a further dis
tance to move the shell and applied band the
rest of the Way through said die, and means for
operable.
i
ANTHONY MINARIK, JR.~
SWEN H. R. ERICSON._
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