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Патент USA US2403884

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July 9, 1946.
w. THOMAS ETAL
‘
2,403,884
AMMUNITION CONVEYER'
Original Filed Aug. 29, 1936
5 Sheets-Sheet ‘2
mvzmons J
WILLIAM THOMAS 3*
av
RALPH L. TWEE our‘
ATTORNEY
July 9, 1946-
w. THOMAS ET'AL
- 2,403,884
AMMUNITION C(IJNVEYER
original Filed Aug. 29. 1956
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ALPH L. TWEEDA‘LE
July 9, 1946.
w. THOMAS ETAL ~
2,403,884 -
_ AMMUNITION CONVEYER
l
Original Filed Aug. 29', 1936
CYLINDER TURNS
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' s Sheets-Sheet 4
F___
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ONE HOIST F'LIGHT\
FLA PPER DOORS
FLAPPEB ooons
sum TO OPEN \
W605: OPEN
CYLINDER
CYLINDER
STA'HONARY
STATIONARY
FL/WPER @0035
STAR}- To @PEN
CYLINDER TURNS;
280” \CiOCKWQSE
ENVENTORS
MxT'HoasT macaw/J
waumm THoM-As &
BY
RALPH L, TW EE W4‘. LE
'
ATTORNEY
July 9, 1946.
w. THOMAS ETAL
_>
‘2,403,884.
AMMUNITION CO'NVEYER '
Original Filed Aug. 29, 1936
5 Sheets-Sheet 5
INVENTORS
WILLIAM THOMAS 29
BY
RALPH L. TWEEDALE
WJM
ATTORNEY
Patented July 9, 1946
2,403,884‘
UNITED STATES PATENT OFFICE,‘
2,403,884
AMIHUNITION CONVEYER
William Thomas and Ralph L. Tweedale, Water
bury, Conn., assignors to The Waterbury Tool
Company, Waterbury, Conn., a corporation of
Connecticut
Application August 29, 1936, Serial No. 98,530
Renewed October 28, 1939
9 Claims.
1
This invention relates to power transmissions
and more particularly to a conveyer for deliver
ing articles from one station to another wherein
a fire hazard is present at one station and in which
it is desired to prevent the possibility of ?ame
transmission between the two stations at all times,
while permitting the continued passage of articles
between the stations. The invention is partic
ularly adapted to delivering ammunition aboard
(C1. 89-46)
2
ammunition at the transfer station, which not
only increases the number of men required for
each gun to be ?red but presents also a retarding
element in the delivery of ammunition since it
introduces one more place for unavoidable human
errors and delays to interfere with the intended
operation of the hoist.
.
It is an object of the present invention to'pro
vide a conveyer particularly adapted for delivery
ship from an ammunition storage compartment 10 of ammunition directly between a, loading station
to a position at the guns for use therein, although
adjacent the magazine and an unloading’ station
it will be understood that the invention may be
adjacent the gun by which ammunition may be
adapted to other uses wherein similar conditions
delivered through a continuous closed casing
and problems are encountered.
whereby transmission of ?are-backs to the loading
It is customary in war vessels to locate the am 15 station may be prevented without requiring an in
munition magazines or storage chambers in the
termediate transfer station.
'
'
lower part of the ship where the possibility of
It is also an object to provide a conveyer'for
their contents being exploded by enemy projectiles
delivering articles between two stations which are
is most remote. The guns which use the ammuni
separated by a ?ame-proof wall having an‘ open
tion being situated on the upper decks of the ship, 20 ing at one station adjacent ‘the conveyer and in
either in turrets or on deck mountings, it is nec
which is incorporated means for passing articles
essary to provide means for conveying ammuni
through the opening while maintaining a ?ame
tion from the magazine to a position near the guns
proof seal at all times.
where it may be readily placed in the guns as
A further object is to provide a loading station
needed.
25 for a conveyer having a rotary article passing
Various types of conveyers have been hereto
mechanism which is actuated by power driven,
fore provided for this purpose and where high
means in timed relation to the operation of the
rates of delivery to rapid ?ring guns are required,
conveyer.
‘
the so-called dredger type ammunition hoists have
It is also an object to provide a loading station
marked advantages over other types in use. Such 30 for a conveyer in which a cylindrical article pass
a hoist usually comprises an endless chain con
ing member is mounted in a wall opening .andis
veyer which is encased in a continuous tubular
provided with a plurality of article receiving re
hoist trunk or casing extending through the ship
cesses adapted to be sequentially brought into
from the loading station in or adjacent the mag
position for receiving an article andthereafter
azine to the unloading station adjacent the gun. 35 brought into position for delivering that article
This continuous hoist trunk provides a conduit
which introduces the possibility of ?ame trans
to the conveyer.
'
'
A further object is to provide a loading station
for a conveyer having an article passing mecha
nismwherein a gravity operated table or chute is
mission to the magazine whenever accidenta1 ex
plosions occur at the gun or whenever an enemy
projectile explodes in or near the hoist trunk.
40 provided on which a limited quantity of articles
In order to break this continuous path for ?ame
may be placed independently of the operation of
travel to the magazine, it has been found neces
the article passing means and from which the ar
ray heretofore to deliver the ammunition in two
ticles will feed automatically to the article pass’
stages by two entirely independent ammunition
hoists with a transfer station where the ammuni
ing mechanism as required.
’ '
Further objects and advantages of the present
invention will (be apparent from the following de
scription, reference being had to the accompany
ing drawings wherein a preferredform of the
effectiveness to prevent the transmission of ?are 50 present invention is clearly shown.
.In the drawings:
backs to the magazine, adds considerably to the
tion is carried manually from the delivery end
of the lower hoist to the loading end of the upper
hoist. This construction, while satisfactory from
the standpoint of safety of the installation and
Fig. 1 is a diagrammatic cross section of a ship ‘
weight and cost of the installation since each of
the two sections of the hoist must be provided
incorporating a preferred form of the present in
with its own independent drive mechanism. Fur
thermore additional crew is required for handling 55 Fig, 2 is a fragmentary side view of a conveyer ‘
vention.
-
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'
2,403,884
3
loading station incorporating the present inven
tion.
Fig. 3 is a side view partly in section of the op
posite side of the loading station.
Fig. 4 is a section on line 4-—4 of Fig. 3.
Fig. 5 is a diagrammatic View showing the hy
draulic circuits incorporated in the conveyer drive
and control mechanism.
Fig. 6 is a timing diagram showing the se
quence of various events in the normal operating 10
cycle of the apparatus.
Referring now to Fig. 1 there is indicated dia
grammatically a portion of a longitudinal sec
tion of a war vessel having superimposed decks
ID of usual construction, the spaces between
which are divided by partitions l2 into suitable
compartments. Indicated at I4 is a deck gun
and at It a revolving turret having two Or more
guns I8 mounted thereon in the usual fashion.
Adjacent the gun I4 is mounted the delivery head
‘24 of a dredger type ammunition hoist 2i having
a trunk 22 extending downwardly through the
vessel to a compartment 24 which may be either
a magazine compartment for the storage of am
munition or a handling rOOIll adjacent such a
spool valve 51 for controlling the stroke regu
lating ?uid motor of the pump 45. A conduit 59
extends from the auxiliary pump 48 to the up
per end of the bore 55 while a conduit 61 enters
the bore 55 at its mid-portion. The valve 51 is
adapted to selectively control and reverse the
connections of the conduits 59 and iii with a
pair of conduits G3 and 65 leading to opposite
ends of the stroke regulating mechanism at the
pump 45. The valves 45 and 51 are formed in
tegrally upon a common stem having an enlarged
portion 51 around which is slidably mounted a
hit piston 59. The latter has a cylindrical upper
portion 11 slidably ?tted in a chamber 13 which
communicates with the upper end of the bore 55
through a passage 15 formed in the spool of valve
5?. The piston 69 has a portion 11 of larger di
ameter than the portion 1i and slidably ?tted in
a chamber 1'9 to which the conduit 56 leads. The
bottom wall of the piston 59 is provided with an
opening forming a clear passage around the stem
of valve 45 and having a seat on which the en
larged portion 6? of the stem is adapted to rest
for the purpose of closing this passage. The
space inside the piston 11 communicates with
the tank through a passage 8! formed in the
compartment and in which is located the loading
stem of the valve 45. At its lower end the valve
end 25 of the hoist 2! together with suitable driv
stem has a roller 83 acting as a follower for a
ing mechanism for the hoist. In the turret i6 is
cam 85. The latter is connected by a suitable
mounted a delivery head 25 of a second dredger
type ammunition hoist 21 having a trunk 28 ex 30 drive means not shown to the shaft of the
sprockets 49 so that the cam 85 makes one revo
tending Vertically downward to a compartment
lution while the chain 38 travels through one
30 similar to the compartment 24, in which is lo
?ight distance. The cam 85 has a depression in
cated the loading end 32 and the necessary driv
which the roller 83 is shown at rest. In this po
ing mechanism for the hoist 21. The hoist trunk
28 is shown secured to the top deck It at the 35 sition the valve 45 is completely closed while the
valve 51 connects the conduit 63 to the pressure
center of rotation of the turret i6 and is station
line 59 and the conduit 65 to the tank line Bl.
ary relative to the turret although it will be un
To either side of this depression are elevated por
derstood that the ammunition hoist 21 may be
mounted to revolve with the turret l5 if desired. 40 tions 81 which hold the valves in such a posi
tion that the valve 45 is opened to a considerable
Referring now to Figs. 2 through 6 wherein the
degree while the valve 51 still connects conduit
construction of the loading ends 25 and 32 is 11
53 with conduit 58 and conduit 65 with conduit
lustrated in detail, there is shown a casing 34
Bi. The remainder of the periphery of the cam
forming the lower end of the hoist trunk to which
85 is raised still further so as to completely open
the casing 34 may be tightly sealed at the ?ange
45 the valve 45 and to reverse the connections at
36. The casing 34 serves not only to enclose the
the valve 51. Whenthe valves are raised to this
drive sprockets 4i! and hoist chain or cenveyer
upper extreme position the valve stem has been
band 38, having conveyor lugs 35, but also as a
lifted higher than it is possible to lift the piston
mounting for the hoist driving and control mech
69, so that the enlarged portion 61 lifts away
anism. The latter may be of any suitable con
struction. The form of drive mechanism and 5% from the seat in the bottom wall of the piston 69.
The cam 35 and its drive mechanism are enclosed
control therefor illustrated comprises a ?uid mo
in a suitable oil-tight housing not shown, the in
tor 42 adapted to drive the sprockets 40 through
terior of which is connected to tank.
a worm drive 44. A variable displacement pump
The entire arrangement of the control unit
45 (see Fig. 5) and auxiliary pump 43 are driven
52 is such that whenever a shot of oil is admitted
by an electric motor 55 to supply ?uid to the mo
through the conduit 55 to the chamber 19, the
tor 42 through a control unit 52. The control
piston 69 is lifted due to the enlarged portion 61
unit 52 is constructed to control the displace
being on its seat in the bottom wall of the pis
ment of the pump 46 and to control communi
ton 69. The piston 59 and both valves 45 and 51
cation between the pump 46 and the motor 42
are accordingly lifted to a position just short of
through conduits 54 in a manner to provide for
the highest position to which the cam would lift
automatically moving the hoist chain 38 through
them. Thus the valve 45 is opened and the valve
one ?ight whenever a starting “shot” of ?uid
51 is reversed to cause the stroke of the pump 45
from the auxiliary pump 48 is admitted to the
to be increased at a rate determined by the volu
device 52 through a control conduit 55.
metric capacity of the auxiliary pump 48. Oil is
For this purpose the control unit 52 comprises
delivered to and returned from the ?uid motor
a body 4| having a cylindrical bore 43 in which
42 through the conduits 54, 41, and 53, thus caus
is mounted a spool valve 45 for the purpose of
ing the motor 42 to operate, turning the cam 85.
blocking or opening the passage of oil between
The latter will contact the roller 83 after about 1/4
the conduits 54 and conduits 41. A second cy
of a revolution when the highest part of the cam
lindrical chamber 45 carries a spool valve 5| for
strikes the roller 83, thus lifting the valves 45
the purpose of reversing the ?ow between the
and 51 a further amount. This additional lift
conduits 41 and a pair of conduits 53 which lead
raises
the enlarged portion 61 off from the seat
The
body
4|
also
has
at
‘to the ?uid motor 42.
its upper end a bore 55 in which is mounted a 75 in the bottom wall of the piston 69, thus permit
"2,403,884
5
ting the oil trapped in the chamber ‘I9 to escape
through the opening in the bottom wall of the
piston 69 and through the passage 8| to tank.
As soon as the cam has completed an approxi
mate 1/2 revolution in addition, the roller 83 drops
6
Pivotally mounted in the casing 34 adjacent
the extension 58 are a pair of barriers or ?apper
doors I22 adapted to rest against the surface
of the cylinder 68. The doors I22 are of suf
?cient width to prevent ammunition from acci
down to the cam portion 81, thus reversing con
dentally falling from the recess ‘I2 or ‘I4 on to
nections at valve 51 but not completely closing
the conveyer chain 33 when the doors are in the
position illustrated. The doors I22 are secured
to pivot shafts I2rl which extend below the'bot-'
tom of extension 58 and are cross connected for
simultaneous operation by a cross rod I25 and
the valve 135. The stroke of the pump 45 is thus
reduced at a rate determined by the capacity of
pump 48 causing the motor @2 to decelerate.
When the cam 85 has completed a revolution, the
roller 83 returns to the position shown in the
drawings, completely closing the valve 45.
At
arms I21. One of the shafts I125 also carries se
cured to its lower end a trip arm I23 extending
into the path of the wing cam H16 whereby the
this time the enlarged portion 61 again comes to
rest on its seat in the bottom wall of piston 69, 15 latter may swing ‘the doors I22 open- at certain
times. Spring means, not shown, are provided
thus placing the apparatus in condition for re
for normally maintaining the ?apper doors in
starting whenever another shot of oil is intro
the position illustrated in Fig. 4. The other pivot
duced to the conduit 56. It will be noted that
shaft I25 carries at its lower end a cam I39
should a shot of oil be introduced to the conduit
adapted to actuate through a roller follower I732;
56 before the cam 85 has made one revolution,
a lever 43% pivoted to the casing 34% at
The
the lift piston 69 will not rise because a free path
opposite end of the lever E34 is connected to
is opened from the chamber ‘E9 to tank through
actuate a stem I 38 of a ?apper door interlock
the passage in which the enlarged portion 61
valve It»? which is adapted to close communica
seats. It will also be noted that oil pressure from
the auxiliary pump is constantly exerted over the 9 tion between conduit 56 and a conduiti? formed
in a valve block £56 (see Fig. 5) whenever the
upper end of the valve 51 creating a bias for the
?apper doors I22 are open.
.
p
a
‘
entire stem assembly in the downward direction.
Likewise this pressure is exerted over the annu
Pivotally mounted in the casing 36 adjacent
the lower edge of the recess 65 at 5% is a lower
piston 69 biasing the latter downwardly when 30 trip arm M8 adapted ‘to be depressed-by-apiece
of ammunition such as ‘E55 when it is placed in
ever pressure is relieved in the chamber 79 by'the
position on the hoist chain
The lower trip
opening of the passage through the bottom wall
M8 is connected by an arm
to a lower trip
of the piston 69.
v
valve res mounted in valve block I56; ‘ An upper
'The casing 34 is provided on its front face
with an outward extension 55 having an opening 35 trip valve E58 is also mounted in the block‘, IE6
and is adapted to be actuated by a solenoid £68
66 of proper size and shape to permit a piece
which in turn is vcontrolled by an‘upper trip I62
of ammunition to pass therethrough. The ex
located at the delivery end of the hoist.{ The ,
tension 53 is hinged to the casing at 62 along
valve HM is adapted to connect a conduit I54 with
one edge thereof and is adapted to be clamped
a conduit I68 when the trip I48 is depressed'and
in sealing engagement therewith by suitable se
to connect conduit Iii-‘i with a conduit i593 when
curing means 65. The extension 58 is formed
the trip I48 is raised. The valve I55 is adapted
with a cylindrical recess 66 within which is
to open communication between the conduit I64
mounted a transfer cylinder 68. The cylinder
and the conduit IE2 whenever the solenoid I623 is
58 is pivoted on bearings ‘iii at the top and bot
tom ends thereof. The cylinder 68 is provided 45 energized and to close communication-‘when the
solenoid is deenergized.
~ '
with recesses 72 and 'I-i of suitable shape to re
The solenoid ‘I86 is under the control of upper‘
ceive a piece of ammunition within the con?nes
trip I62 through a three-way switch I79 which
of the cylinder so that the latter may rotate be
is connected in circuit with athree-way switch
tween the position illustrated and a position 180°
away, in which the recess ‘M is in register with 50 I12 adapted to be actuated by a reversing lever
I74.v When the reversing lever I'M is set to hoist
the opening 56 and recess '82 is opposite the chain
ammunition as illustrated in Fig. 5, the-switch
38.
I 12 connects the solenoid to the switch I153, so.
The lower end of the cylinder tit has secured
that the solenoid will be energized whenever: the
thereto a shaft ‘56 having a flange ‘i8 rigidly se
lar area at the top of the portion ‘I! of the lift
cured thereto. rl‘he ?ange ‘i8 is provided with di
ametrically opposite V shaped grooves 88 which
trip IE2 is released by the removal of ammunition
from the delivery end of the hoist. With'reverse
lever I'M set for lowering ammunition the switch.
are adapted to receive corresponding projections
I12 connects the solenoid I66 to, the switch *I‘iil
82 formed on a pinion 8Q freely rotatable on the
for opposite action.’ The lever I'M also controls
shaft 76. A spring 85 urges the pinion 83 up
wardly in Fig. 2! to engage the projections 52 60 a reversing valve 5'56 for selectively connecting
either the conduit I681 or the conduit iii?with
in the grooves 80. Pinion 84 meshes with a seg
a conduit i'i8 leading from the auxiliary pump :
43, as well as controlling valve ‘ii ‘for - reversing
92 to the bottom end of the extension 53. On
operation of motor £2.
' ‘
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‘
the opposite side of the pivot 92 the arm 98 car-»
Inoperation, with motor 59 and pumps'll?" and
ries a depending pin 94 adapted to seat in a 65
118 running, and with the hoist at rest due to ,
groove 96 of a cam 98. The cam 98 is rotatable
the presence ‘of apiece of ammunition‘ at the»
on a shaft H86 secured in a boss I182. The 'cam
delivery station, trip I62 keeps thesolenoid IE3
93 has integrally secured thereto a bevel gear
deenergized so that pressure flui'dfr'orn' the pump
IM and a wing cam I86. A bevel pinion IE3 is
keyed to a shaft IIiJ projecting into the casing 70 I58 is blocked off from the conduit 55 at the valve
I58. Assuming‘a piece vof ammunition tophave
of the worm drive 151% on the interior of which the
dropped from the recess ‘I4 and to lie on the
shaft IIO carries a bevel gear I I2 meshing with
chain 38 and the lower trip I43, as in Fig’. ‘5; and
a bevel gear H4. The latter is secured to a spur
assuming ’ the flapper doors I22 to have closed;
gear II6 meshing with a spur gear H8 secured
mental gear 88 formed on an arm 98 pivoted at
to the sprocket shaft I26.
1
75 ‘as soon as‘the ammunition is removedfrom the
2,403,884
7
delivery station, trip I 62 is released to energize
solenoid I65 opening valve I58 to admit pressure
?uid to the conduits I42 and 56. The control
unit 52 in response to the admission of pressure
?uid to the conduit 56 causes the ?uid motor 42
to drive the sprockets 40 and chain 33 through
one ?ight; that is, through the distance required
to bring the next lug 39 into rest position as il
8
cess 66 with the cylinder ‘68 is substantially
greater than the arc subtended by the recesses
‘I2 and ‘I4. By this construction it is insured that
the opening through which ammunition is passed
to the hoist chain 38 is maintained sealed at all
times.
Should for any reason a piece of ammunition
become jammed between one edge of the opening
60 and the opposite edge of a recess ‘I2 or ‘I4,
lustrated in Fig. 5. As soon as the chain 38 starts
to move, cams 98 and I08 are caused to rotate 10 damage to the mechanism is prevented by the
by the gearing H6, H8, H2, H4 and shaft H8.
clutch mechanism 8D—-82 which permits the pin
The gear ratio between shaft IN and cam 98 is
such as to produce one half a revolution of the
cam 98 while the hoist chain 38 moves the dis
tance of one ?ight.
15
ion 84 to continue its travel as determined by the
Referring now to Fig. 6, with the cams 98 and
I06 moving in the direction of the arrow and
starting in the opposite direction at the point
segment 88 without carrying the cylinder 68
along with it. In the event of such a jam, the
hoist is stopped automatically at the end of the
cycle during which the jamming took place since
there is no ammunition in position on the chain
38 to depress the lower trip I48. The hoist may
be again started by manually prying the cylin
A the cylinder 68 is given a half rotation while
the pin 94 moves through the angle AB inas 20 der 68 back into the rest position illustrated in
the drawings when projection 82 will again
much as the pin 94 during this motion is moved
register with notch 80. The ammunition may
inwardly toward the shaft I00. Consequently
then be properly placed in recess ‘I2 and the
operating arm 98 and pinion 84 turn the cylin
hoist started by manually actuating the lower
der 68 one half revolution counterclockwise
bringing the recess ‘I4 into register with the 25 trip interlock valve by an emergency lever I82.
Should a piece of ammunition fail to properly
opening 60 and bringing the recess ‘I2 into posi
fall from the innermost recess on to the hoist
tion opposite the hoist chain 38. During move
chain when the ?apper doors I22 are open, the
ment through the angle between B and C the
hoist will not start because either the ?apper
pin 94 and cylinder 68 are stationary. At the
doors will be held open by the ammunition lying
point D the wing cam I06 begins to engage the
in improper position, partly in the recess ‘I4 and
trip arm I28 and as the arm moves from D to
partly on the chain 33; or if the ammunition
E the doors I22‘ are completely opened at E where
sticks entirely in the recess ‘I4, the lower trip I48
the cam I06 clears the trip arm I28. During
will not be depressed. In the former event the
movement from D to E the ammunition I50 falls
trouble may be remedied by loosening the fasten
by gravity on to the chain 38 and depresses the
ings B4 and swinging the entire extension 58 open
lower trip lever I48. As the position C is
to remove the misplaced ammunition; while in
reached, the cams 98 and I06 come to rest since
the latter case, the handle I82 may be actuated to
they are geared to the shaft I20 to make one
operate the hoist through one empty ?ight thus
half revolution during one hoist ?ight. As soon
bringing the recess in which ammunition is stuck
as the next piece of ammunition is removed from
around to the loading opening 60 where the
the delivery end of the hoist, ?uid is again ad
ammunition may be freed.
mitted to the control unit 52 through the inter
While the form of embodiment of the invention
lock valve I56 and conduit 56 to start the next
as herein disclosed, constitutes a preferred form,
hoist ?ight during which the pin 94 moves from
it is to be understood that other forms might
C to A and a similar sequence is repeated except
be adopted, all coming within the scope of the
that the pin 94 is moved outwardly from the
claims which follow.
shaft I00 and the rotation of cylinder 68 is con
What is claimed is as follows:
sequently in the opposite direction. The same
cycle of operations are continued as long as am
munition is fed through the opening 60 and is
removed from the delivery end 20.
In order to make the operation of the hoist
less dependent upon precise timing of the manual
loading operation at the opening 69, a sloping
loading table I80 is provided at one side of the :
extension 58 upon which several pieces of am
munition may be placed to roll by gravity into
the recesses ‘I2 and ‘I4 as an empty recess is
presented at the opening 60.
If at any time during the operation of the
hoist an accidental explosion should occur ad
jacent the gun or in the hoist trunk itself due to
a hit by an enemy shell, the transmission of ?are
backs or ?ame travel of any kind to the com
partments 24 and 35 is effectively prevented at
the loading stations 25, and 32‘. It will be noted
that no matter what the position of the cylin
der 68 there is no path for ?ame to travel from
the interior of the casing 34 to the exterior there
of. The cylinder 68 forms a seal at the opening
80 by its engagement with the recess 56 and any
gas pressure existing in the casing 34 above the
pressure outside thereof tends to force the cylin
der 68 into tighter engagement with the walls of
the opening 60. The arc of contact of the re
1. In a conveyer for delivering ammunition be
tween a loading station adjacent a storage com
partment and a station for use and having an
endless ?exible ammunition conveyer band, a
?ame-proof casing surrounding the conveyer band
and means for driving the conveyer band in inter
mittent cycles of movement, the combination with
the conveyer. of means for passing ammunition
into said casing at the loading station and means
operated from the conveyer driving means for
driving the ammunition passing means during the
initial portion of a cycle of movement of the con
veyer band and operable to hold the ammuni
tion passing means stationary during the re
mainder of the cycle whereby the ammunition
‘passing means is gradually accelerated as the
conveyer accelerates during the initial portion of
the cycle.
2. In a conveyer for delivering articles between
two stations the combination of an endless ?ex
ible conveyer band, means for driving said con
veyer band in intermittent cycles of movement,
means forming a ?ame-proof wall between said
conveyer band and one of said stations, said wall
having on opening adjacent the conveyer band
through which articles may pass, means asso
ciated with said opening for passing articles
2,403,884
10
therethrough and cooperating with said opening
for maintaining said opening sealed against the
passage of ?ame, and means operated from the
conveyer driving means for driving the article
passing means during the initial portion of a
cycle of movement of the conveyer band and op
erable to hold said last named means stationary
during the remainder of the cycle whereby the
article passing means is gradually accelerated as
tions, said wall having an opening adjacent the
conveyer band through which articles may pass,
means associated with said opening for passing
articles therethrough including a rotatable cyl
inder having a plurality of article receiving re
cesses and cooperating with said opening for
maintaining said opening sealed against the
passage of flame, means including a displaceable
barrier for preventing accidental transfer of ar
the conveyer accelerates during the initial portion 10 ticles from said recesses to said conveyer band,
and means operated from said driving mecha
of the cycle.
3. In a conveyer for delivering ammunition be~
tween a loading station adjacent a storage com
partment and a station for use and having an
endless ?exible ammunition conveyer band hav 15
ing ammunition carrying lugs projecting later
ally from said band at intervals along its length,
a ?ame-proof casing surrounding the conveyer
band and means for driving the conveyer band
nism including intermittent motion mechanism
for rotating said cylinder in predetermined rela
tion to movement of the conveyer and mechanism
operable in timed relation to said intermittent
motion mechanism for displacing said barrier
while the cylinder is stationary.
7. In a conveyer for delivering articles between
two stations the combination of an endless ?ex
in intermittent cycles of movement starting and 20 ible conveyer band, means for driving said con- ,
veyer band, means forming a ?ame-proof wall be
terminating with a carrying lug in a predeter
tween said conveyer band and one of said sta
mined position, the combination with the con
tions, said wall having an opening adjacent the
veyer of means for passing ammunition into said
conveyer band through which articles may pass,
casing at the loading station including a rotat
able cylinder having a plurality of ammunition 25 means associated with said opening for passing ar
ticles therethrough including a rotatable cylin
receiving recesses, said cylinder being positioned
der having a plurality of article receiving recesses
so that ammunition in said recesses is clear of
and cooperating with said opening for maintain
the path of ammunition on said lugs, means co
ing said opening sealed against the passage of
operating with the ammunition passing means
for maintaining a ?ame-proof seal between the 30 ?ame, and a displaceable barrier for at times pre
venting the passage of articles from said recess
inside and outside of the casing at all times and
into position on said conveyer band.
means for operating the ammunition passing
means during a portion of the cycle when a car
rying lug lies between the ends of the cylinder.
8. In a conveyer for delivering articles between
two stations the combination of an endless ?ex
4. In a conveyer for delivering articles between 35 iblevconveyer band, means for driving said con
veyer band, means forming a ?ame-proof wall be
two stations the combination of an endless ?ex
tween said conveyer band and one of said sta
ible conveyer band, means for driving said con
tions, said wall having an opening adjacent the
veyer band, means forming a ?ame-proof wall
coveyer band through which articles may pass,
between said conveyer band and one of said sta
tions, said wall having an opening adjacent the 40 means associated with said opening for passing
articles therethrough including a rotatable cyl
conveyer band through which articles may pass,
inder having an article receiving recess and coop
means associated with said opening for passing
erating with said opening for maintaining said
articles therethrough including a rotatable cyl
opening sealed against the passage of ?ame, a dis
inder having a plurality of article receiw‘ng re
cesses and cooperating with said opening for 45 placeable barrier for at times preventing the pas
sage of articles from said recess into position on
maintaining said opening sealed against the pas
said conveyer band, means for rotating said cyl
sage of ?ame, and means including a displaceable
inder, and means for displacing said barrier, said
barrier for preventing accidental transfer of ar
two last named means being interconnected for
ticles from said recesses to said conveyer band.
5. In a conveyer for delivering articles between 50 conjoint operation.
9. In a conveyer for delivering articles between
two stations the combination of an endless ?ex
two stations the combination of an endless ?ex
ible conveyer band, means for driving said con
ible conveyer band, means for driving said con
veyer band, means forming a ?ame-proof wall
veyer band, means forming a ?ame-proof wall be
between said conveyer band and one of said sta
tions, said wall having an opeing adjacent the 55 tween said conveyer band and one of said sta
tions, said wall having an opening adjacent the
conveyer hand through which articles may pass,
conveyer band through which articles may pass,
means associated with said opening for passing
means associated with said opening for passing
articles therethrough including a rotatable cyl
articles therethrough including a rotatable cyl
inder having a plurality of article receiving re
cesses and cooperating with said opening for 60 inder having an article receiving recess and co
maintaining said opening sealed against the pas
sage of ?ame, means including a displaceable
barrier for preventing accidental transfer of ar
ticles from said recesses to said conveyer band,
operating with said opening for maintaining said
opening sealed against the passage of ?ame, a dis
placeable barrier for at times preventing the pas-t
sage of articles from said recess into position on
and means for operating said cylinder and said 65 said conveyer band, means for rotating said cyl
inder, and means for displacing said barrier, said
barrier in timed sequence.
6.. In a conveyer for delivering articles be
tween two stations the combination of an endless
two last named means ‘being interconnected for
conjoint operation and being driven from said
?exible conveyer band, means for driving said
conveyer band, means forming a ?ame-proof wall 70
between said conveyer band and one of said sta
driving means.
.
WILLIAM THOMAS.
RALPH L. TWEEDALE,
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