US497695A

US497695A - welin

Info

Publication number: US497695A
Authority: US
Publication date: 1893-05-16
Anticipated expiration: 1910-05-16

Description

4 Sheets-Sheet 1r ApWBLIN. Y BRBEGHMBGHAMSM POR GUNS.

N0 497,695. (Patented May 16, 1893.h

UNIV

` (No Model.) 4 sh eeeeeeeeee 2.

BRE'GH MBIGHANISM 1.7011 GUNS. y No. 497,695,A .Patented May 1 6, 1893;

ii un f m././ l 4 l -V 4'Sheets-'Shet 4.

(No Model.) y

A; WBL1N.-- v BREEGH MBQHANISM FOR GUNS. No, 497,695. Patented May-16, 1893.*

"$29.62. .9 CJ v 3 c3 UNITD? STAT-Es] PATENT OFFICE.

AXELv wELfIINQor LoNDoN, ENGLAND.

BREEQH MECHANISNI` FORGUNS.

SPECIFICATION forming parser Letters 'rarest No. 497,695, sages May 16, 1893.

Application filed July 11,1392. Serial No. 439,640. (No model.) Patentedinilrance July 25, 1891.110. 215,118 in Germany .l'uly 30,1891, 1105611561, andinisweden August 27, 1891.11?. 3.434.

To all whom it may concern: l

Be it known that I, AXEL VELIN, mechani- Y cal engineer, a subject. of the King ofSweden and Norway, residing at the Scandinavian Sailors Temperance Home, GrarfonlStreet,l

London, in the count-y et' Middlesex, England, have inventedcertain new and yuseful Breech Mechanism for` Guns, (for which I have rescribed, and are clearly illustrated in theaccompanying drawings, in which- Figure l is a rear elevation (partly in section), of the breech end of a gun with my improvements applied. Fig. 2 is aside elevation thereof. Fi g. 3 is a transverse section on the line 3 3 of Fig. 2, wthsome of the inte.

rior parts in elevation. Fig. 4 is a similar transverse section with the parts in different posit-ions from those shown in Fig. 3;A Fig. 5 is a central section on the line 5-5 of Fig. 1, with seme of the interior parts in elevation. Fig. (S is a similar section on the line (-Gof Fig. 1. Fig. 'l` is a plan view of the breech end of the gun, with the breech block with'- drawn and swung back. Fig. S is a side clevation of the breech block. Fil. E) isa transverse section thereof on the line 9 9 of Fig. s. Fig. l0 is arear elevation of the` Vcarrier ring and table. the same. Fig. 122 is a detail View in section, showing particularlyihe construction and operation of the. mechanismV for locking the carrier ring to the mechanism for withdrawing it from the breech of the gum Fig. 13 is a plan view of the carrier ring and table..

. Figs. 14 and 15 are'detail viewson an enlarged scaleof the mechanism for controlling the longitudinal movement of the screw shaft which operates the breech block'.

A hole A' is bored transversely in the rear 'end A, of the gun below the breech opening. "The hole A. extends nearly but not quite through the gun and at one end is closed hy Fig. l1 is a side elevation of a cap o. Within the holeis arranged a shaft B, which 1s provided with a worm 13 and a series of collars B2, (five being shown.) It is -smaller radius yor nearer to the center of the block than the screw threads c2, c2, of the segments C2 C2, and the screw threads c2 c2 of the segments G2 C2 are nearer to the center than the screw threads c3, c3 of the segments C3 C2. The inner walls of the spaces C, C", are nearer vto the center than the screw threads c2, c3.

Each set of teeth or screw-threads in each successive are of the circumference is thus arranged at dillerent distances from the center or axis of the block. about one-eighth of the circumference of the block. 'lhe block is, therefore, divided into eight divisions. screw threads on it corresponding with each of the screwthreads on the block. lVhen the breech block istnrned in the breech of the gun through an are of forty-five (or one-eighth of 'an entire revolution), the screw threads c assume the position previously occupied hy the sci ,awthread c2, but beingof smaller diamo ter, do not engage with the threads within the breech of the gun. Similarly, the screw threads c2 passte the position previously occupied by the screw threads c and likewise, do not. engage. At the same time,the screw threads c" pass to the blanksegments in the breech ofthe gun (corresponding tothe blank segments C4). The breech block may then be drawn rearward vout of the gun. Similarly; when the breech block is replaced, a rotation through an arc 'of .forty-five degrees (or one.-

veighth o f an entire revolution) locks it securely. The hre-ech block also has upon it a longitudinal rack or scrlcsof teeth U", see Fig.

8. l'lhis rack extends from one end of the breech' block to the ot-her, the last few teeth at the rear end or outer end, as shown in Fig.

Each segmentoccupies g The 'lhe breech or the gun has IOO gitudinal rack or series of teeth C5, on the B, of the handle.

8, being longer than the other teeth. The` breech block is also provided with a series of teeth C, clearly shown in most of the figures, which gear with the collars B2, on the shaft The breech block is snpportedby a carrier ring D, and cradle or table D', the construction of which is shown in detail in Figs. 10, 11 and 13, and which is also shown in working posit-ion in other -figures of the drawings. This ring andy table are hinged to the gun by-a vertical shaft E, having upon its opposite ends pinion's E' E2, partly toothed and partly plain, as shown in Fig. l and also more clearly in Fig. 13.. These pinions work in slots w, in brackets A2, fixed on the rear end of the gun. On one side of each slot there is a series 4of teeth A2, which gear with the teeth upon the pinion E or E2. The shaft E, also has at its upperV end a friction roller E3, and near its lower end, a worm-wheel F, which is formed integrally with a pinion F', located above it. In Fig. l, the arms dd' of the carrier-ring are seen arranged on the shaft E, above the pinion F', and below .the worm-wheel F. The worin-wheel F,gears with the wormB' on the shaft B, and the pinion F gears with the lonbreech block. This detail of construction is shown clearly in Fig. 5. It is also indicated in other figures.

A locking bolt G, is arranged to slide in a 'slot g', in the under side of the table D', as

shown in Figs. l and. 12. 4It has upwardly projecting lugs G' and G2. Lug G either lies in a curved slot F2 in the worm-wheel F, or else engages with a notch F3, at-one end of the slot F2, (see Fig. 12.) The lug G2, when the table D' is in contact with the'breech ofl the gun, lies in an inclined notch g in a bracket A4securedtothegun. Apinion`H,ismounted on a shaft ll', (Figs. 3 and 4,) secured to the gun. Its edge is slotted at 71., to receive the disk B4, secured to the end'of the shaft B. The teeth of the pinion H,have circular concave tops (Fig. 14), in which the cylindrical part of the single toothed pinion B3 lies, so

that the pinion cannot turn until the tooth b of the pinion B3 comes into gear with it. The pinion H is provided with-a notch H2 for a purpose hereinafter described. l

The construction 0f the mechanism having now been clearly described, I will describe the operation Vof the apparatus.'

screwed home or locked in the breech of the gun, the worm-wheel F, cannotturn because itis geared to the block by the pinion F',.and rack C5, and as the pinion F' cannot move the block, it Abeing already locked, the worm-wheel F, at the first part of the movement of- 'rota' tion of the handle, will'act as a fixed nut for the Worin B' to work in, so that at first the v rotation of -the handle causes the shaft -B to move lengthwise, or froinright to left, as shown in Fig. 2, and thus, by reason of the collars B2 engaging with vthe teeth the breech block C will be Vcaused to rotate and disengage its screws C' C2, CB from the correspending screws in the breech in a manner heretofore explained, and as'shown .in Fig. 4.

`When the breech block has thusbeennnlocked, a further 'longitudinal movement of the `handle is prevented, the segment of teeth C6 being stopped by a corresponding shoulder in the recess C", in which it moves. As the handle is coming to the end ot' its longitudinal movement,-the disk B4 passes through the observed, that each rotation of the handle` after its longitudinal movement has ceased, moves the pinion' H through a space equal to one tooth, and carries the notch H2 away from the disk B4,.so that the shaft B, cannot again move longitudinally until an equal number of turns in the reverse direction have ,been 1 given to it. When the -block isV fully withdrawn, the notched end ot' the slot F2., in the worm-wheel F, comes against the lug G', on -th'e bolt G, and prevents it from any longer turning relatively to the table D'. `Its further rotation, therefore, causes the table D' and carrier-ring D, the breech block C, to swing back rearwardly about the shaft E. As thetable D', comes away from the breech of the gun, the

inclined vslot g, in the bracket A4, actingon the lug G2, on the bolt G, draws the bolt to -lhe in the worm-wheel F, locking the latter firmly to the table D'. At this time, also the pinions E' and E2,on the shaft E, come into gear with the racks A3, and in this way, the breech well clear of the breech opening, as shown in Fig. 7. In closing the breech,-the reversev has been done, the end of the slot F2 inthe It is clear that when the breech block C is worm-wheel F, .comesuagainst the lug G' and arrests the rotation ofthe worm-whee1 E'. The notch H2 has new', however, come back to the disk B4, and freed the handle longitudithe segments of the said screw-vthreads in each successive arc of the circumference be- -r-ight, causing the lug G to enter the notch F s,` l

I IO block as it swings backis also carried Atooneside cessive arc 1of the circumference being arranged at a dierent distance from 'the center or axis of the block. l 3. The combination with the breech of a gun, of a breech block adapted to turn in the breech opening, a longitudinal-rack or series of teeth upon the breech block, a pint'an gear ing with the rack,a support or carrier for the block when withdrawn hinged vto a shaft which carriesthe pinion a rack upon the gun, teeth upon the shaft which engage .with thel rack on the gun after thejblock has been withdrawn, whereby theblock is ca rriedwitli its support to one side c l'earof the opening of the breech, and means foroperatin'g the pin*-- ion and connections between theshatt ofthe pinion, and the support for the breech block.

4. 'lhe combination with a gun, a breech block, means for turn-ing it in the breech opening to lock and unlock it, a pinion engaging with a longitudinal rack-on the breech block, means for operating thepinion to-niove the block longitudinally to withdraw-fit from Ithe gun, a shaft on` which the pinionis mounted, stationary racks or teeth on the gun and de'-v vices carried by the shaft of the-pinion whichf engage with the racks or teeth, whereby when the breech block iswithdrawn'from the v gun it is carried to one side, clear ot'4 the opening of the breech. 'I

5. 'Phe combination with agun, of a breech.' block'locked and unlocked by a partial turn, a shaft mounted in the-gun and freeto rotate and also to move longitudinally, devices for limiting the longitudinal movement yofthe shaft, gearing connecting `the shaft tofthe block for turning it as the shaft-moveslongitudinally, and gearing connecting` the shaft with the block for movingr the block longitudinally, as the shaft rotates.

6. In breech mechanism for guiis,the combination Wit-h a breech block locked and .un. locked by a partial turn, a shaft free to rotate and also to move longitudinally, gearing'connecting the shaft with the block for turning it, as the shaft is rotated and' as it is moved longitudinally, and gearing connecting .thev shaft andthe block to .withdraw the block from the breech opening as the shaft is rotated and is held against movement longitudi- 4llally- 7. rlhe combination with a gun, of a breech block locked and unlocked bya partialturn, a series of teeth, and a longitudinal rack upon the block,a shaft free torotate and also to move longitudinally, collars on theshaft engaging with the series of teeth on the block', a worm on the shaft, a worm wheel gearing with thc worm on the shaft, and a pinion connected with the worm wheel and gearing with the rack on the block.

-8. The combination with the breech of a by a partial turn, a series of teeth, andalougitudin'alrack on the breech block, a shaft free to rotate and alsoto move longitudinally,

Ydevices for intermittently holding the shaft against longitudinal movement, collars on the shaft gearing with th`e teeth ou the block, a Worm on the shaft, a Worm wheel gearing gun, of abreech block locked and unlocked therewith, a pinion connected with the Worm wheel and gearing with the rack on the'block,

and a table or support for the breech block,

hinged to the shaft whchcarries the worm wheel, andwhich turns with said shaft and worm wheel. i'

9. The combination with the breech ofa gun, ofa breech block locked and unlocked by a partial turn,a series of teeth and'alon-4 gitudinal rack el the breech block, a handle havinga shaft free to rotate and also to move longitudinally, collars on the handle gearing with the teeth onthe block, a worm on' the gearing with the rack on the block, asupport handle, a Worm-wheel gearing therewith,a pinion connected with the worm-wheel and for the block'hinged to the shaft of the wormwheel, a rack on the gun, aseriesof teeth f fixed tothe gun,l and teeth carried bythe shaft of the .worm-wheel which come into gear with I `the yrack on the gun 'after the block has been withdrawn and carry it andits supper-tto one side,clear'of'th'bpen'ing of .the breech;

19; The` combination with'l the'gun, of a' IOO breech blocklocked and unlocked by a partial turn,a series of teeth and alongitudinal rack the block, a worm on theshaftof the handle,

a worm-wheel gearingtherewith, a pinion conon ,the breech bl'ock,a handlehaving a shaft i l. A freerto rotate and also to move longitudinally,

nected withsaid worm-wheel and gearing with' the rackon the block,a tableor support'l for the block hinged-'to the-shaft of the worm-wheel,

' mechanism for locking the-table to the Worm- IIO wheel when; the formeris turned back away from'the gun, and mechanism for preventing the handle from Amoving longitudinally when thebreech is being closed until the block has been run home longitudinally.` i

A.11. The combination with the gun, of a breech block locked and unlocked by a partial turn, a series of teeth and a longitudinal rack on the breech. block, a lhandle having a shaft. i. free to rotateand also to move longitudinally relatively to the gun, collars on the-,handle gearing with the teeth on the block, a `worm on the handle, a worm-wheel gearing there-` with, a pinion connected with said wormwheel a'nd'gearing with the rack on the block, a table 'or'support for the block when with- IIS@ drawn, hinged to the shaft of the worin-wheel,

a bolt in the table having twolugs, a circular slot in the worm-wheel receiving one of said lugs and'havinganotch at one end, a bracket secured to tue gun and having aslot to receive thc other lug, a disk secured to the shaft of the handle, a piuionon the gun having .a groove in its curved face to receive the said tzal' disk, and a notch at one side to allow the table or support for the breech block when disk to escape at one point from the groove, and means for rotating the pinion slower than the handle.

12. The combination with the gun, of a breech block1 locked and unlocked by a partial turn, a shaft mounted in the gun and free to rotate and also to move longitudinally, gearing connecting the shaft to the block for turning it, gearing connecting the shaft with the block for moving the block longitndinally, a

withdrawn, connections between this table and the shaft for moving it away from the breech opening, as the shaft is operated, and the locking mechanism engaging the shaft to prevent its longitudinal movement when it is turned or rotated to return thetable into position at the breech of the gun.

' AXEL WELIN.

Witnesses: a

F. C. CARPENTER, 24 Southampton Buildings, Chancery Lane,

London, W. C'.

THOMAS LAKE, 17 Graceohw'ch Street, London, E. C'.