US1572435A - Bomb - Google Patents

Description

Feb. 9, 192e. 1,572,435

A. M. KING BOMB Filed Sept. 19, l1925 2 Shets-Sheet 1 9./ If/z/o,7 (.0

V/W I i// "fo 27 i! 24 y :i 25. mggl] VM :2- n I ff? y; '5 65? o ,w L1' fo;-x 67M l 4 4/ f4.4 l g #gs Feb. 9 1926.

A. M. KING BOMB Filed Sept. 19, 1925 2 Sheets-Sheet 2 Patented Feb. 9, 19.26.

ALBERT M, KING, OF CASPER, VIYOMING.

BOMB.

Application and september 19, 1925. serial no. 57,451.

To (/,ZZ wh om z' may concern Be it known that I, ALBERT M. KING, a citizen ofthe United States, and resident of Casper', in the county of Natrona andStatc of IVyoming, have invented certain new and useful Improvements in Bombs; and I do hereby declare the following to be a full,

clear, and exact description of the invensuch mechanism is actuated, the explosion is practically instantaneous. In the oil fields many fatalities have occurred because of careless manipulation of such bombs, while setting the timing mechanism, or in accidentally dropping the bomb while such mechanism is set in safety position.

The primary object of theV present invention therefore is the provisionv of a bomb such as described, equipped with timing mechanism adapted to initiate the operation of certain instrumentalities which finally lead to the explosion of the bomb, but which operate to delay such explosion for a predetermined period, even after the timing mechanism has been released or sprung. It follows therefore that, in the use of the device embodied in the application, if the timing mechanism is accidentally releaseda ample time is provided for the operator to disrupt one of the instrumentalities which is necessary to the explosion.

Another object of the invention is the pro vision of means for giving audible indication of the fact that the timing mechanism has been released.

Other objects of the invention will be made apparent in the accompanying specifications, when read in connection with the drawings forming a part thereof.

This application discloses certain subject matter in common with matter disclosed in my co-pending applications Ser. Nos. 6,109, filed Jan. 81, 1925, allowed pril 1S, 1925, and Ser. o. 10,098. filed Feb, 1S, i925, al-

lnwed April Q0,

In the drawings:

Fig. 1 is a vertical section taken through a bomb casing equipped with my invention, the timing mechanism being shown in full lines. f

Fig. 2 is a top elevation of the timing mechanism in set7 position.

Fig. 3 is a top elevation of the timingk mechanism in its released or firing position.

Fig. i is a detailed perspective view of the firing hammer associated with the timer mechanism.

F 5 is a detailed perspective view of they clamps forholding the fuse end in position for contact by the hammer.

Fig. G is a view similar to Fig. 1, showing a modiiied fuse lightingmechanism.

Fig. 7 is a top plan view of the fuselighting mechanism shown in Fig. 6.

Fig. 8 is a view showing a modified form F of fuseigniter, substituting an abrasive for a hammer, and,

Fig. 9 is a perspective View showing means for holding the fuse in proper position.

Now referring specifically to the drawings, in which similar reference numerals indi# cate like parts throughout the several views, 1 is a metallic casing which may be of suit able material, and of any desired dimensions, provided with a screw-cap 2. The casing` 1 is divided by a transverse partition 3, the upper portion of the casing being adapted to receive the timing mechanism, and the lower portion being filled with the explosive charge 4.

rIhe timing mechanism is here shown as consisting of a small alarm clock 5, of the well known type, and the controls of the timing mechanism extend through the back of the clock, here shown at the top. Such controls are the time-wind G, the handeset 7, the alarn'i wind shaft 8, the alarm set 9, and the lever 10 which renders the alarm operative or inoperative. To the rear outer surface of the clock casing, as here shown, is bolted a Senn-tubular `metallic shell 11 which carries the mechanism which cooperates with the clock in initiating the train of instrumentalities leading to the explosion of the charge 4. A 'shelf 12 extends across the shell l1` just above the controls, and is bolted at each end to a side of the shell, one end of the shell being turn-ed blmkwardly from the shell and extended over itself to form a support 13, which extends inwardlly of the chen to a point beyond the center thereof, as clearly shown in li A slow-fuse 14 extends from above the cloclr5,'along the outside thereof and is operatively connected at its lower end to a.V

percussion cap 15 seated in a port provided centrally in the partition 3, the cap contacting or heilig closely adjacent the explosive charge in the lower portion ofthe casing 1. lnorder to'pioperly position the upper end of the fuse for lighting by the Vtiming mechanism, provide two co-operating clamping'v'memb'ers 16 and 17, as clearly illustra-ted inFigsj y1 and 5. The rmember 16 isgtrans- 'V'versely 'slotted' at 18, to permit entry of the "front edge of the shelf 12, and an up-y standing shoulder 19 is formed u'pon the top thereof', against which theV edge of the-support 13` abuts kwhen the member is 'secured 2in operative position by zmeans of a screw `2O, which` extends through the support. 13

and into the top 'of the member 16.` The front face of the member lcarries a roundedgroove o'r'troughY 21, extending vfrom the Vbottom, to a point considerably abovev the central line V'of the member @and at the to) of the Oroove 21 is formed a )erforation 22v extending transversely through the member and opening through the` rear wall thereof .as shown in Fig. 3.

Themember 1T-is formedto complement the member 1G in clamping the fuse, and, tol that end is provided with a groove 23,

preferably carrying the upsctspurs adapted toont-'er the outer covering of the fuse. Vand prevent withdrawal thereof. rlfhe upper portions of each ofthe members 16' and 17 are provided with screw-threaded aperture. for the reception of a screw 2st, which draws i the members together and rigidly clamps the fuse therebetween. ATo impart added rigidity to the structure, a screw may vextend through the shell 11, through the support- 13, and into the side wall rof the member 16, as shown in dotted lines in lFig. 1.

In actual practice the top port-ion of the fuse is provided with a fulininati-s ,26, such as a match'head, which is to be positioned inthe aperture 22 for Contact by the firing pin of the hammer to be hereinafter described, the outer clamping member 17 being then secured in position.

lArs before stated the support 13 extends above the shelf 12, and a. pin 27 is extended through aligned apertures in said shelf and support, and lirinly secured in position,`said Vpin also extendingrthrough ears 2S, 28, of a hammer arm 29, carrying a hammer head 30. arovided with a firme' -Jin 31 at its end e: l a a y as clearly shown in Fig. il. A strong coiledsoring 32 surrounds the lpin 27, the `iower end 33 of said spring being` hooked over the edge of the shelf 12, and the upper end 34C being hooked through an aperture in the upper portionof thc arm29. The instrumrntalities described are of such prepeytiens, and fare so assembled, that, when the hammer head 30 moves in anti-clockwise direction around the pin 27 and comes to rest with its front face against the rear face of the clamping members 16, the liring pin 31 is at re'st in the aperture22,

A having contacted and exploded the fulminate 26, thus lighting the fuse 1-/l-. The springf32 always exerts its influence to A`swing the hammer in an anti-clockwise direction. l I i Y :In order to set the hammer 30and retain -itin armed position, I provide a detent 35, which .is secured at one end by a'sciew. 36, extending through the shell 11,

as clearlyV shown in Figs. 2 and 3l The detent 35 is of resilient metal, andv normallyextcnds into the shell r11 above the plane of vthe vclock 5. Extending lbelow the hamkmerheadBO, is a lug 37, anch-chiring moveient of the head 430, in clock-wise direction, lug `3"('bearsagaifist the inner face of the detent 35 and presses it baclrwardly towards" the shell' 11.v "Near the free end of the -detent` 35' however is provided an integrally-formed'fprojection 38 and, as the lugl 37passcs lthe end of the projection 38,'

the fdetentl snaps forwardly towards-.the lug and the latterA thereafter. cannot-A` pass .the

projection This constructioi'i provides means for set-` ting thev timing mechanisn'i.

Inorder to release the mechanism just 38 in anti-clockwise movement.`

described',whereby to permit the firing pin 31 to explode the `fulminate ycarried by Ythe fuse, I providev the instrun'ientalities new to be described;

rhe extreme end of the deteiit` is bifurcated to foi'n'i two arms 3f) and 4,0; ter-kv vided withfa vertically extending slot ii-2,

lower adapted to receive the arm 39, and the portion of the blade 41 carries a camined portion L'13, best seen in Figs. 2 and 3, adapted, duringthe rotation of the shaft S under the alarm mechanisnnto Contact therounded inner-*face of the arm 40, and to pushft-hc said arm, and therefore thedetent 35, vtowards the shell 11.

In actual'prac-tice the clock controls are all accessible to the fingers of the operator, except the time wind fo-i the clock, and it will be noted that.y theI shaft-G 'thereof is f shown slotted for a suitable tool for'wiiidy ing.- The shaft S for the alarm wind may te turned. by the blade el., While till@ .detest leased, whereupon the arm 89 thereof swings ,tacting 4surface of the projection 38 and into the plane of rotation of the blade lll. rhe arm 29 is then rotated clock-wise until the lng 37 engages behind the projection 38, at which time the blade ll-1 is turned slightly in anti-clockwise direction so as to canse the arm 3S) to enter the slotA lf2 in the blade, see Figs. 1 and 2, the parts being so proportioned as to readily adapt themselves to this position. lt will be noted that, with the arm 39 in the slot in the blade 41, the device is in safety position, sinceY the lug 37 cannot be released from Vbehind. the projection 38 except by movement of the detent S5 towards the shell 11, vand that such movement is prevented by the wall defining' the slot 4-2 in the blade lL rEhe device is now in set and also in safety position, and ready for insertion into the well to be shot.

At the proper time, dependent upon the alarm setting, the alarm mechanism is set off and the shaft 8 immediately initiates clock-wise rotation. The first movement turns the blade t1 so that the slot no longer surrounds the arm 39, and continued rotation of the shaft causes the cammed portion d3 to brush against the curved face of the arm 40, and ythereby move the very resilient detent towards the shell l1.

.Such movement carries the projection 3S away from in front of the lug 37, releasing the arm 9.9, and the hammer 30 snaps the firing pin 31 into the aperture and ignitest-he fulminate 2G and the fuse 1l. rlhe fuse burns to the cap which exi plodes and detonates the charge et.

Obviously the delicacy' of the releasing mechanism may be varied to suit conditions, by changes in the con figuration of the conthe lu 37.

Ehe modifications depicted in Figs. G to 9 operate upon the same general principle, except that abrasive instead of -a percussive action is utilized to ignite the fuse 11i. ln this embodiment of the invention the fuse-clamping members are eliminated and lugs il are struck from the metal of the shell 11 and serve to hold the fuse in position. The fuse is provided with a plurality of spaced fulminates Ll5, which project beingl the plane of the fuse. The hammer head is not provided with a tiring pin, but that surface 46 of the head nearest the shell 11 is corrugated or abraded, and, when released, the corrugated surface 46 swings against and in contact with the fulminates l5 and ignites them.

The outer surface of-thc shell 11 makes lose tit with the inner wall of the casing' C l., on one side, serving to bold the timingk mechanism in position, the fuso 14 entending downwardly to the cap 15, on the other side, as illustrated.

From the foregoing` it is obvious that I have interposed a delay in the firing of the charge, after the timing` mechanism has operated to activate the first of the train of instrumcntalities leading to the explosion. The spring,` 32 is very powerful, and snaps the hammer head against the face of the member 16 with considerable noise, giving audible indication that the fuse 1li has been ignited. Furthermore if the device is in the hands of the operator at the time, the operator may easily feel the jar when the hammer strikes the member 16. The fuse is of the slow-burning' variety, and any length desired may be interposed between the ignitino' device and the cap 15. Consequently, in case of accidental lighting` of the fuse, as set forth, ample time is provided to permit the operator to take oil' the cap 2, lift out the timing` mechanism, and out the fuse before the percussion cap 15 is eX- ploded.

rihe clock 5 is of course equipped with the usual alarm bell which sounds as the shaftV 8 rotates. Therefore, if the alarm setting is faulty and rotation 'of the shaft 8 springs the mechanism, the ringing of the alarm Jell Warns the operator that the fuse has been ignited. v

In my coinpanion application, Ser. No. 57,452 of even date herewith l show a structure wherein the timing mechanism .is enclosed in a transparent casing,l which enables the operator to view the mechanism and fuse. ln this structure if the fuse is inad vertently ignited the operator breaks the glass casing` and pulls ont and disrupts the fuse.

lifoditications of the structure herein set forth may be suggested to those skilled in the art, but my invention covers all embodiments falling fairly Within the scope of the appended claims.

lVhat I claim is:

1. A; bomb including' a casing having' an explosive charge -conlined therein, and a fnlminated fuse leading' to the charge, `in combination with fuse-igniting means comprising` a time piece provided with an alarm shaft, spring' actuated mechanism adapted to contact and light the end of the fuse. and means carried by said alarm shaftand adapted to prevent operative actuation of said spring mechanism, during one position of said alarm shaft.

2. A. bomb including a casinghavingan esplosive charge confined therein, and a fulminated fuse leading to the charge, in combination with fuse-igniting means comprising a time piece provided with an alarm shaft, sprinjy actuated mechanism adapted to Contact and light the cnil of the fuse,

means carried by said alarm shaft and adapted to prevent voperative actuation ot said spring mechanism, during one position of said alarm shaft, and additional means carried by said shaftfor causing actuation of said spring-mechanism during rotation of lthe' shaft.

3. A bomb including a, casing having an explosive charge confined therein, and a fulminated fuse leading to the charge, in combination with fuse-igniting means comprisinga time piece provided with an alarm shaft, a spring-actuated firing pin mounted adjacent the time piece and adapted for actuation to ignitevthe fuse, a detent adapted to lock the firing pin in armed position, and va cam carried by said lalarmV shaft adapted, under rotation of the latter, to

` move the detent and release the iii-ing pin.

,/l. A. bomb includingl a casing having an explosive charge Vconfined .'tlieiein, and a fulminated fuse leading to the charge, in combination with fuse-igniting means comprising a time piece provided withv an alarm i shaft, a spring-actuated liii-ing pin mounted adjacent the time pieceV andadapted for actuation to ignite the fuse, a detent adapted to lock the tiring )in in armed position, vand a blade carried by said. alarm shaft vand adapted to receive the end of said detent and prevent movement thereof during one position of said shaft.

.5.'A time-controlled igniter for bombs having a confined charge and fulminatedv lfuse leading thereto, comprising a. time piece having an alarm shaft, a shell partially encircling said time piece, a clamp carried by lsaid shell and adaptedto-receive the fulminated end of said fuse, an aperture leading` through said clamp, a spring-actuated` iii-ing pin carried by said shell and pivotally mounted to swing into a path to project the pinvinto said aperture to explode the fulminate on said fuse, means for normally holding-said pin vin armed position, and means actuated by said time piece to release said pin at a predetermined time.

6. A time-controlled igniter for bombs having a confined charge and a fulminated fuse leading thereto,comprising a time piece having an alarm shaft, a shell partially encircling said time piece, a clamp carried byV said shell and adapted to receive Vthe fulminated end of said fuse, an aperture lead` ing through said clamp, aspring-actuated liring pin carried by said shell and pivotally mounted to swing into a path to project the pin into said aperture to explode the fulminate on said fuse, a movable' detent adapted to retain said pin in armedr position, .and means carried by the alarm shaft' and preventing releasing` movement of said detent While said shaft'is in one position.

7. A tii'ne-controlled l igniter for bombs having a vccnfined charge and a fulminated iasvfa-Lissy fuse leading thereto, comprising a time piece having an alarm shaft7 a shell par- Vspring-actuated firing pin carried by vsaid shelland pivotally mounted tofsvving' into a pathto project the pin into said aperture to explode the fulminate on saldi-use, a

movable detent adapted to retain said pinA inl armed position, means carried by the alarm shaft and preventing releasing movenient of said detent While saidshaft is in `V`one positioin'and means carried by said .shaft adapted to `move said detent to release tlie fir-,ing pin, during movement of the alarm shaft in clockwise direction'.

8. A timecontrolled igniter for bombs.,

having` aV confined charge and a fulminated s 'ltuseleading thereto, comprising a time piecev Ahaving an alarm shaft, a shell partially encircling said time piece, means carried by said shell for supporting the upper end of said fuse, a spring-controlled larm supported by the shell and adapted for swing ing movement to Contact the fulminated pertionsof the fuse and to ignitel thelatter, a detent normallypositioned in the plane of swinging movement of saidarm,,and`

provided with means for contacting said arm and retaining itin setl position, and means carried by the alarm shaft adapted to move said detent.'r to Vrelease said arm lwhen the said shaft rotates in a clock-Wise s direction.

9., A Vtime controlled 'ignitei for lbombs having a confined charge and a fulminated fuse leading thereto, comprising a time piece having an alarm Lshaft, a shell partially encircling said" time piece, means carried by said shell forfsupporting the upper end of said fuse, a 'spring-controlled arm supported by the shell and adapted for-swinging movement to contact the fulminated portions of the fuse and to ignite the lat'- ter, a detent normally positioned in the plane.

of swinging movement of said arm and retaining itin set position,lmeans carried by vthe-alarm shaft adapted to move said detent to releasesaid arm when the said shaft vrotates in a clock-wise direction, and additional means carried by saidv alarm shaft adapted to prevent movement of said detent When thevshaft is not rotating.

lO. A time controlled igniter for bombs having va confined'charge and a fulminated fuse leading thereto, con'iprising a time piece; having an alarm shaft, a shell partially encircling said time piece, means carried by said shell for supporting the upper end of said fuse, a spring-controlled arm supported by the shell and adapted for siringing movement to contact theffulminated portions of the fuse and to. ignite the lat ter, a detent normally positioned in the plane of swinging movement of said arm, and provided With means for contacting said arm and retaining it in set position, a blade extending laterally of said alarm shaft, and a slot in said blade adapted to receive the rear end of said detent and prevent movement thereof to releasingposition while said shaft is not rotating.

l1. A time controlled igniter for bombs having a Confined Charge and a fnlminated fuse leading thereto, comprising a time piece having an alarm shaft, a shell partially encircling said time piece, means carried by said shell for supporting` the'npper end of said fuse, a spring-controlled arm supported by the shell and adapted for swinging movement to Contact the fulminated portions of' the fuse and to ignite the latter, a detent normally positioned in the plane of swinging' movement of said arm, and provided with means for contacting said arm and retaining it in set position, a blade extending laterally of said alarm shaft, and a slot in said blade adapted to receive the rear end of said detent and prevent movement thereof to releasing` position While said shaft is not rotating, and a Cam on the lower portion of said blade and adapted to move said detent to releasing` position during,` rotation of said shaft in clock-Wise direction.

In testimony whereof I affix my signature.

ALBERT M. KING,

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