US2255043A - Fuse setting machine - Google Patents

Description

Sept. 9, 1941; s. w. BEATTY FUSE SETTING MACHINE Filed May 21, 1957 3 Sheets-Sheet 1 l a a a a o i v My 9 9 7 m a ow a a I. fi 3 a O m w 4 s s 7 a a y /,LM 2 0 2 1 6 m 2 C n W x 4 4 w \w LIJ Inventor; GanrgaW-E|Eatt WWW Attorney Se t. 9. 1941. e. w. BEATTY FUSE SETTING MACHINE Filed May 21, 1937 a Sheets-Sheet 2 Inventor Bear EW-E1Eatt Fly Atturn:

Sept. 9, 1941. e. w. BEATTY FUSE SETTING MACHINE Filed May 21, 1937 3 Sheets-Sheet 3 Inventnr EWBEatt Attn rne Patented Sept. 9, 1941 FUSE SETTING MACHINE .George W. Beatty, Decatur, 111., assignor to Government of the United States of America, represented by the Secretary of War Application May 21, 1937, Serial No. 143,941

(Granted under the act of March 3, 1883, as

- amended April 30, 1928; 370 0. G. 757) 7 Claims.

The invention described herein may be manufactured and used by or for the Government for governmental purposes, without the payment to me 'of any royalty thereon.

The subject of the invention is a fuse setting machine;

vtrolling the operation of a round-holding latch.

To these and other ends, the invention consistsin the construction, arrangement and combination of elements described hereinafter and pointed out in the claims forming a part of this specification.

TA practical embodiment of the invention is illustrated in the accompanying drawings,

wherein:

a Fig. l'is' a'longitudinal sectional view of the 'improvediuse setter with the parts in normal position.

f Figs. 2,3 and e are sectional views on the corresponding lines of Fig. 1. v

" Fig. is an enlarged view of the round-holding latch. l Fig. 6 is a sectional View on the line 6-6of Fig. 1. with a round of ammunition inserted in the machine.

Fig.7 'is a similar View without the round and showing the parts in the normal position.

Figs'i8; 9 and'lO areviews of the bolt respectivelyin plan and in side and front elevation.

Fig. 11 is a sectional View on the line I l- -l I of Fig. 6." r

Fig. 12 is a sectional view on the line 12-42 of Fig. 6;

Figs. 13 to 16 are detail views showing various relationships of the bolt and the retracting'and latch bars.

I 1 Fig. 17 is'a View in side elevation of the'front end of a round of ammunition;

The fusesetter comprises a housing 5 adapted to be fixed toa base A and tocarry a casing B which is mounted ona hinge pin 1 and locked to'the housing in. any suitable manner. The casing includes a flared mouth a to facilitate introduction of a round of ammunition B.

Within the housing 5 and casing 6 are respectively mounted adjusting members 9 and I0 which are independently rotatable about the axis of the machine. The member 9 is adapted to be coupled to the rotatable time ring 0. of the fuse D and carries a spring pressed pawl l I (Fig. 3) for entering a notch l2 in the ring C. The member i9 is to be similarly coupled to afixed part of the fuse and carries a spring pressed pawl !3 (Fig. 2) for entering a notch M in the fuse.

The adjusting member 9 includes a worm wheel l5 whereby it is driven from aworm IS on an operating shaft ll. the adjusting member 9 drives a. bevel gear is on a shaft 29 which leads to suitable mechanism for indicating the amount of rotation or the angular position of the actuating member. The adjusting member It includes a bevel gear 2| meshing with a bevel gear v22 (in Fig. 6) on an operating shaft 23 controlled by a handwheel 24.

A plunger 25 is disposed axially within the. adjusting member 9 with its front portion supported by an internal rib 26 of the adjusting member and its intermediate portion supported by the hub 21 of the housing 5 while its rear portion is supported through a sleeve 28 fixed thereon and slidable in an end cap 29 on the housing. A guide tube 39 inserted partially within the plunger extends through the endcap 29 and is surrounded by a spring 3! which is confined between the end cap and a head on the inner end of the tube. The spring normally holds the plunger in the forward position (Figs. 1 and 7) with the sleeve 28 engaging the rear face of the hub 2'11. The front end of the plunger is formed with a recess 32 for receiving the nose of the fuse D, and when the round of ammunition is fully inserted the plunger is moved against-the action of the spring 3| until the shoulder 33 of the plunger engages the front face of the hub 21 (Fig. 7). 7 r

A pivoted latch 34 (Figs. 1 and 5) mounted in a slot 35 in the plunger-has a hook 36 on its front end which is adapted to enter the recess 3 2 and engage in a groove 31 in the fuse for the purpose of holding the round of ammunition against re: moval. A laterally projecting finger 38 on the latch is arranged to engage the rib 26 of the adjusting member 9 when the plunger is in the normal forward position (Fig. 1) so that-the hook i 36 will be maintained out of the recess .32.: Upon retraction of the plunger the finger encounters a spring-pressed plunger 39 (Fig. 5) in the hub 21 and is moved about its pivot so that the: hook A bevel gear l8 on enters the recess 32 to engage in the groove 31 of the fuse.

The housing 5 is formed with a channel 50 (Figs. 7 and 11) one side of which is closed by a plate 41 secured to the housing by screws 52. A bolt 43 slidably mounted in the channel is formed with a passage for receiving a spring 44 which is seated on One prong of a bifurcated lug 45 on the plate 4|. The spring normally urges the bolt towards the adjusting member It so that the front end of the bolt may enter the recess of a keeper 46 (Figs. 6, 7, 11 and 12) which is attached by means of rivets i! to a disk 43 on the adjusting member i ll. The keeper is formed with a projecting lip 49 and the periphery of the disk includes on opposite sides a front cam 59 and a rear cam 5|.

The upper wall at the front end of the bolt (Figs. 8, 9 and is provided with a beveled surface 52 adapted to engage a correspondingly beveled seat 53 in the keeper. The upper portion of the outer side of the front end of the bolt is formed with a notch 54 for receiving a hook 55 on a bar 56. This bar is supported on a lug 5? (Fig. 12) of the casing 6 and on the upper prong of the lug 45 of the plate while its rear end is pivotally attached to the outer end of an arm 58 which is disposed in the end cap 29 and fixed on the sleeve 28 that forms part of the plunger 25. As a result of this connection the bar partakes of the reciprocating movement of the plunger and serves to retract the bolt from the keeper. The bar is acted on by a spring 59 carried by the plate 4| and is normally held thereby in contact with the side of the bolt.

The hooked end of the bar is formed with a transversely disposed slot 65 (Fig. 13) which is provided to permit passage of the rear cam 5i during the first revolution of the adjusting member l0 when the hooked end of the bar is still in engagement with the bolt. The face iii of the hooked end which is on the outer side of th slot 50 is disposed in the path of the front cam 5@ (Fig. 14) so that, as the adjusting member It nears the termination of its first revolution, the cam will engage the face SI and move the bar 56 to disengage the hook 55 from the notch 54 of the bolt.

The hook, in moving out of engagement with the notch, cams the bolt rearwardly a short distance to uncover the head 62 of a latch bar 53 which is arranged parallel to the bar 55 on the opposite sides of the lugs 45 and 51 and is pivotally attached to the prongs of the lug 45 of the plate A l 64 carried by the plate M and when the head 62 is uncovered, the spring moves the latch bar towards the bolt to place the head 62 in front of the bolt, as seen in Fig. 14. The hook 55 in moving out of the notch 54 retracts the bolt a slightly greater distance than is necessary to uncover the head 62 and this provision is made so that the bolt, in moving into engagement with the head, will ride over the hook 55. (Fig. 14) and maintain the bar 55 in the disengaged position.

During the second revolution of the adjusting member Ill, the rear cam 5| engages the head 62 (Fig. of the latch bar and moves it out of engagement with the bolt 53. The bolt, now released, is moved by its spring into contact with the disk 48. When the further rotation of the disk brings the keeper 5% opposite to the bolt, the lip 59 on .the keeper engages the bottom of the bolt and the bolt under the urge of its spring The latch bar 53 is acted on by a spring enters the recess of the keeper and is brought up against the beveled seat 53.

A lever 65 (Fig. 11) is mounted near its center on a pin 55 in the bolt and has a turned front end Bl which is positioned at the front end of the bolt and which extends below the bottom face of the bolt when the rear end of the lever is elevated. The front end 61 is adapted to be struck by the lip 49 of the keeper 46 when the bolt is bearing against the disk (Fig. 15) during the second revolution of the disk. When the lever 55 is actuated in this manner its rear end acts on a latch 68 to swing said latch about its pivot 69 and disengage its head from the arm 58 so that the plunger 25 will be released and be capable of returning to its initial and normal position when the round of ammunition is withdrawn.

The pivot 69 of the latch extends across a slot 16 in the rear wall of the end cap 29 while the shank of the latch extends through an opening H in the rear wall. The rear end of the latch is formed with oppositely extending arms 12 and T3, the arm 72 being acted on by a spring 14 to normally hold the latch in position to engage the arm 58 and the arm '53 being provided for manually disengaging the latch. A rod 15 extending through the rear wall of the end cap adjacent the latch 58 and attached to the arm 58, serves for manually retracting the plunger.

The parts are normally in the position shown in Figs. 1 and 7, the plunger 25 being fully forward, the bolt 493 being engaged in the recess of the keeper &5 to hold the adjusting member ID against rotation, and the hook 55 of the retracting bar 55 being engaged with the bolt.

When a round of ammunition is inserted into the machine it strikes the plunger 25 and forces it to the position shown in Fig. 6 where it is held by the latch 58 while the round is held by the latch 3 as seen in Fig. 5. The bar 56 being attached to the plunger is also retracted and withdraws the bolt 43 from the keeper 46 to effect release of the adjusting member ID.

The adjustment of the fuse is accomplished by causing the adjusting member IE! to carry out two complete revolutions while the member 9 is either stationary or under continuous operation. When the member ID is coupled to the body of the fuse D by means of the pawl IS the round of ammunition will be rotated even though resistance is offered by the man holding the round.

Since the time ring C of the fuse is rotatable with the round the notch 12 of the time ring will sooner or later be in position to be engaged by the pawl l l of the adjusting member 9. When this occurs the angular displacement of the time ring will be under control of the adjusting member 9 and it will assume an angular position relative to the predetermined position of the adjusting member H]. The purpose of turning the member H3 through two revolutions is to insure coupling of the adjusting members with the notches l2 and i4 irrespective of their position relative to each other and to the adjusting members at the commencement of the operation.

During the two revolutions of the adjusting member Hi the cams and 5| on the disk 48 act on the retracting bar and latch bar 63 in the manner outlined in connection with the description of Figs. 13 to 16 so that the adjusting member, at the conclusion of its second revolution will be engaged by the bolt 43 and the latch 68 will be actuated to release the plunger 25. The adjusting member lflis held against initial moveout of engagement with the bolt by one of the I ment in the wrong direction by a pawl 16 (Figs. 1 and 4) mounted in the casing 6.

Upon withdrawal of the round the plunger 25 is moved forwardly by its spring and restores the bar 56 to its forward position so that it may reengage the bolt and thereby be prepared to retract the bolt when the next round is inserted.

I claim:

1. In a fuse setting machine, a support, a pair of coaxial adjusting members rotatably mounted in the support, a disk on one of the adjusting members, a keeper on the disk and having a projecting lip, a pair of cams on the periphery of the disk, a plunger in the other adjusting member adapted to be retracted when struck by a round introduced into the machine, a latch for holding the plunger in retracted posi tion, a bolt mounted in the support and having a notch, a spring for moving the bolt into the keeper, a retracting bar pivotally attached to the plunger and engageable' with the notch of the bolt for withdrawing the bolt from the keeper, said bar movable out of engagement with the notch by one of the cams on the first revolution of the disk and further retracting the bolt, a latch bar pivotally mounted in the support and movable into the path of the bolt to be en aged by the bolt after partial forward movement thereof which blocks return of the retracting bar, said latch bar movable out of engagement with the bolt by the other cam, and a lever carried by the bolt and adapted to be actuated by the lip of the keeper to disengage the plunger-holding latch.

2. In a fuse setting machine, a support, a pair of coaxial adjusting members rotatably mounted in the support, a disk on one of the adjusting members, a keeper on the disk, a pair of cams on the periphery of the disk, a plunger in the other adjusting member adapted to be retracted when struck by a round introduced into the machine, a bolt mounted in the support and having a notch, a spring for moving the bolt into the keeper, a retracting bar pivotally attached to the plunger and engageable with the notch of the bolt for withdrawing the bolt from the keeper, said bar movable out of engagement with the notch by one of the cams on the first revolution of the disk and further retracting the bolt, a latch bar pivotally mounted in the support and movable into the path of the bolt to be en aged by the bolt after partial forward movement thereof which blocks return of the retracting bar, and said latch bar movable out of engagement with the bolt by the other cam.

3. In a fuse setting machine, a support, rotatable fuse and round adjusting members mounted in the support, a disk on the round adjusting member, a pair of cams on the disk, a plunger in the fuse adjusting member and adapted to be retracted when struck by a round introduced into the machine, a bolt mounted in the support and engageable with the disk for holding the round adjusting member against rotation, a retracting bar carried by the plunger 7 and engageable with the bolt, said bar movable cams on the first revolution of the disk, a latch bar carried by the support and replacing the retracting bar to hold the bolt, said latchbar movable out of engagement with the bolt by the other cam on the second revolution of the disk.

member adapted to be retracted when struck by a round introduced into the machine, a latch for holding the plunger in retracted position, a bolt for holding the round adjusting member against rotation, means carried by the plunger for retracting the bolt, means on the round adjusting member and operable on the first revolution thereof to disengage the bolt retracting means, means replacing the retracting means for holding the bolt in retracted position, means on the round engaging member and operable on the second revolution thereof to disengage the bolt holding means, and means carried by the bolt for disengaging the latch from the plunger at the end of the second revolution of the round adjusting member.

5. In a fuse setting machine, a support, rotatable fuse and round adjusting members mounted in the support, a plunger in the fuse adjusting member adapted to be retracted when struck by a round introduced into the machine,

a bolt for holding the round adjusting member against rotation, means carried by the plunger for retracting the bolt, means on the round adjusting member and operable on the first revolution thereof to disengage the bolt retracting means, means replacing the retracting means for holding the bolt in retracted position, means on the round engaging member and operable on the second revolution thereof to disengage the bolt holding means. 7

6. In a fuse setting machine, a support, ro-. tatable fuse and round adjusting members mounted in the support, a plunger in the fuse adjusting member adapted to be retracted when struck by a round introduced into the machine, a latch for holding the plunger in retracted position, a bolt for holding the round adjusting member against rotation, and a lever carried. by

the bolt and adapted to be actuated by the round adjusting member to disengage the plunger-holding latch.

'7. In a fuse setting machine, a support, a rotatable adjusting member in the support, a

plunger in said member and adapted to be re-' tracted when struck by a round introduced into the machine, a latch pivotally mounted in the plunger and adapted to hold the round, a projecting finger on the latch, means on the support for engaging the finger to move the latch into round-holding position and means on the adjusting member for engaging the finger to move the latch out of round-holding position,

GEORGE W. BEATIY.

4. In a fuse setting machine, a support, 'rotatable fuse and round adjusting members mounted in the support, a plunger in the fuse adjusting

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