USRE12833E - Reissued july - Google Patents

Description

No. 123333.- I REISSUED JULY 21, 1908.

A. T. DAWSON & G. T. BUGKHAM. I SIGHTING AND WORKING OF, QUICK FIRING ORDNANGE.

11 SHEETSSHEI;T 1

APPLICATION FILED JUNE 18, 1907.

No. 12,833. RBISSUED JULY 21, 1908. v A. T. DAWSON & e. T. BUOKHAM. SIGHTING AND WORKING OF QUICK FIRING OEDNANGE.

APPLIUATION FILED JUNE 18,1907.

11 SHEETSSHEET 2.

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v No. 12 ,833.

REISSUED JULYn, 1908.

A5 T. DAWSON & ear. BficKHA Y SIGHTING AND WORKING 0F QUICK, FIRING ORDNANGE.

APPLICATION FILED 117N318,

REISSUED JULY 21-, 1908. A. T'. DAWSON & G. T. BUOKHAM. SIGHTING AND WORKING 0F QUICK FIRING ORDNANGE'.

APPLIdATION PILED JUNE 18, 1907.

11 SHBETSSHEET 4.

r I REISSUED JULY 21, 1908 T. DAWSO N"& G. T. BUOKHAM. DID WGRKING UP QUICK FIRING ORDNANOE,

SIGHTING A.

REISSUED JULY 21, 1908.

A. T. DAWSON & G. T. BUGKHAM. -SIGHTING AND WORKING vOF QUICK FIRING ORDNANGE APPLIUATION FILED JUNE18,1907. M

- 1]. SHBETB SHBET 6 G W W] I REISSUED JULY 21, 1908. y A. T. DAWSON & G. T'. BUOKHAM. SIGHTING-AND WORKING 0F QUICK FIRING ORDNANGB.

11 SHEETS-$HEBT 7.

APPLIOATION FILED JUNE 18, 1907.

Nw NU nu II' llllll a l I APPLICATION FILED JUNE} 1907.

8 11 SHEETS-SHEET 8.

wagin J 5 mum gvfiawk REISSUED. JULY 21, 1908. A. T. DAWSON & G. T. BUCK AND WORKING OP QUICK HAM.

FIRING ORDN'ANOE.

SIGHTING ll SHEETS-SHEET 9.

"APPLICATION FILED JUNE 18, 1907.

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REISSUED JULY 21, 1908. A. T. DAWSON .56 G. T. BUCKHAM. SIGHTING AND WORKING OP QUIGK FIRING ORDNANOE.

APPLIGATION FILED JUNE 16, 1907. I 11 SHEETS-SHEET 10.

110. 12,833. REISSUED ULY 21, 1908.

A. T. 11AWS0N- 1 G. T. BUGKHAM. SIGHTING AND WORKING 0P QUICK FIRING 0111111111101.

APPLIGATION FILED JUNE 18, 1907.

"III I II 11 SHEETS-SHEET 11.

, the mounting so that .proximately on the line 1 ,11,'a transverse section taken approximately on the line 2 2 of Fig. 6,

ARTHUR TREVOR DAWSON AND GEORGE THOMAS I ELUG KHAM, OF WESTMINSTER, LONDON,

ENGLAND, ASSIGNORS TO VIGKERS SONS LAND.

Original No. 792,972, dated .Tune 20, 1905, Serial No.

Specification of Reissued Letters Patent.

& MAXIM LIMITED, OF WESTMINSTER, ENG

SIGHTING AND WORKING OF QUICK-FIRING ORDNANCE.

Reissued July 21, 1908. 198,167. Application for reissue filed June 18, 1907.

Serial No. 379,674.

To all whom it may concern: Be it known that we, ARTHUR TREVOR DAWSON, lieutenant of the Royal Navy and director and superintendent of ordnance works, and GEORGE THOMAS BUCKHAM, engineer, both subjects of the King of Great Britain, residing at 32 Victoria street, Westminster, in the county of London, England, have invented. certain new and useful Imrovements Relating to the Sighting and orking of Quick-Firing Ordnance, of which the following is a specification.

Our invention relates to the sighting and vglorking of quick-firing ordnance, and is for t than heretofore.

Our invention consists chiefly in arranging, the sighting, elevating,

the operations of sighting, elevating, and" training may be in dependently performed by three men or numbers which, for the sake of easy iden tification, we will hereinafter refer to, re-

' spectively as No. 1, No. 2, and fNo. 3.

We sometimes arrange that all the three men or numbers shall be situated at one side of the inounting in close but not inconvenient proximity to each other and sometimes that they shall be situated two on one side of the mounting and one on the other. In the latter case we preferably situate Nos. 2 and 3 .on the left-hand side and N o. l on the righthand side, and we then provide means to enable No. J to work the sight that No.- 2 is using, the sa l sights being at opposite sides of the mounting.

In order that our invention may be clearly understood and readily carried into effect, we will describe the same more fully with reference to the accompanying ,drawings, in which: i

Figure 1 is a left-hand side elevation, Fig. a right-hand side elevation, and Fig. 3 a plan, of a pedestal-mounting fora quick-firing gun with our improvements applied. thereto. Figs. 4, .5, and 6, are similar views showing a modification. Figs. 7, Sand 9 are also similar views showing a further modification. Fig. 1.0 is a transverse section taken ap- 1 of Fig.6; and Fig.

showing, on a larger scale, the means for enabling the sight-setand training gear of I ting-number when situated at one side of the mounting toactuate the sight of the elevating-number for eleVa-tionor deflection at the other sideof themounting. Fig. 12 is a vertical section taken approximately onv the line 3-3 of Fig. 10. Figs. 13 and 14 are longitudinal detail 7 enabling the extremities of the cross-bar forming illustrated by Fig. 10 to be readily engaged or f' disengaged with or from i tus. Fig. 15 is a detail ment for deflecting the line of sight. Fig. 16 i is a front elevation of the range drum or dis] Fig. 1.8 is an enlarged side elevation of the left hand sight showing I the mechanism for elevating and depressing it about its horizontal pivot. cross section on a still larger scale taken approximately on the line 19*19 of Fig. 18 and showing the mechanism for deflecting the sight about its vertical pivot. Fig. 20 is an enlarged side elevation of the right hand sight showing the mechanism for elevating and depressing it about its horizontal pivot.

I Fig. 21 IS a rear end elevation showing on a I still larger scale the mechanism for effecting the lateral deflection.

Like letters of reference indicate similar parts in all the figures. A is the gun, adapted to recoil in the r cradle A, which is triinnioned in the .mount- C is the hand-wheel'of the hand-wheel of l and E the hand-wheel of the training-gear.

B B are platforms which are attached to the mounting and upon which. the men or numbers stand in working the sighting, elevating, and training gear. Referring more particularly to Figs. 1, 2, i and 3, in which all the three numbers are P situated on the platform 1}, onebehindthe other at one side of the mounting, c is the l l i the sighting-gear, D

left hand sight proper, which. in the example shown on an enlarged scale in Fig. 1.8 is of the telescopic type mounted in a carrier 4 on abar c horizontally hinged at c to a bracket 0, attached to the cradle A of the gun, so

that said sight the elevationor ment of the sight 1 c is effected by a depression thereof. Moveabout the horizontal hinge toothed segment 0 on the Fig. 19 is athe si htin 'a )arao b plan of an arrange" the gun elevating gear,

moves with the gun during graduated deflection d range drum or disk the present sight proper (see bar 0 gearing with a pinion (2 its motion from a worm-spindle (1 which is actuated from the hand wheel C and bevelgearing c as shown inv Fig. .18. C is the range drum or disk, which in the present case receives its motion from the aforesaid worm spindle c which gears with a worm wheelc fixed on the spindle 1 carrying the pinion "c and C is fixed index or pointerfor enabling any particular graduation of the to be set into the proper position for any particular range. C is the rum or disk,.whichin case receives its motion from a s indie 2 carrying the thumb piece or wheel said spindle in its rotation imparting lateral movementto the sight about a vertical ivot This lateral movement is effected yproviding the inner end of the spindle 2 I wit 1 a screw threaded portion 3 gearing with a nut 5 that has a lug 6 to engage with a re cess in the lower art of the carrier l of'the i ig. 19). As the said spindie 2 1S revolved in one or other direction by its thumb piece or milled head C it will be obvious that the not 5 will travel along the screw threaded portion 3 and thus impart lateral movement or deflection to the sight and carrier 4 about the vertical pivot C Si? multaneously with the movement of the sai spindle 2 as aforesaid motion is imparted to t e graduated deflection disk C through the intervention of toothed wheels 7' and 8 the former of which is mounted on the said spindle 2 and the latter upon the axle'9 of the deflection-disk. By'setting the graduations of i -the deflection disk with reference to a pointer 10 the degree of dcflection'imparted gear imparts motion toua too fixed to the sight can be .readily fead off. 1n working the gun No. 1 stands in front of the said disks or drums C and C and ac tuates them in accordance with the orders he re ceives from the oii'icer in command, thereby changing the elevation andde'tlection of the sight as required.

The hand-wheel D of the un-elevatin t hed wheel gearing with a toothed segment (l on the gun, as is well understood. No. 2 actuates this hand-wheel'whilc looking through the sight 0 and steadies himself during such opera tion by leaning against the shoulder-piece He also has control of the firing-lever or pistol-grip D for fii'i11g the gun. The hand-wheel E of the training-gear is mounted on a shaft 6 connected by a flexible joint with another shaft 6 that carries a worm'gearing with the toothed ring, by which the gun is turned laterally about'its vertical pivot in the ordinary way. No. 3 actuates this hand wheel in accordance with the directions he receives from No. 2. The position of No. 3 behind No. 2 enables him to train the gun. within rough limits from his own observation by l neans of a rough laying-sight 01;, Figs.

that receives i, 3 and 18, fixed on or in close proximity to the sight 0, which lie. 2 uses. The position of this rough laying-sight is such that No. 3 can use it by looking over the shoulder 'of No. 2&- In giving the required elevation and deflection ,to the sight by has a, tendency to move away from the eye No. 2. To counteract this, No. 2 works the ating-gearof the gun so as to keep his sight on the object in a vertical plane, and he gives directions to No. 3 regarding the training or lateral movement. No. 2 fires the gun as soon as the sighting has been prop erly effected. As No. 3 who trains the gun, is situated behind No. 2, it is obviously necesfor the training-wheel to be situated at a considerable distance from',the mounting. In order to avoid large brackets projecting from the mounting, we may mount the outer end of the training-shaft e in a .bearing carried by a bracket 1) on the platform B and connect it with the otherpart e of the training-shaft which is carried by the mountin by means of the aforesaid flexible joint,whic.1 in the present case comprises toothed wheels a, so that flexure of the platform (due to its resiliency and the movement of the men) in no way interferes with the efficiency of the training gear. Instead of the toothed wheels e we'may employ a ball-joint e, as represented in Figs. 4 and 6. the training hand-wheel E of larger diameter than usual in this class of mounting, and in order toallow man No. 2 ready access to and from his position on the platform B we make said hand-wheel capable of being swung into or out of position. For this purpose the end of the shaft e to which the hand-wheel E is connected is furnished with a hinge e which enables the said hand-wheel to" be turned from the position shown by the full lines in N0. 1, the sight of We preferably make Fig. 3 to the position indicated by the dotted so as to be out of-the way of man No. 2 when he is taking his place behind the sight 0 on the platform B, as, stated above. In order to secure the said handwheel in its operative position-that is to say, the position. represented by the full lines-we provide a detachable pin or bolt e, which engages with'holes that coincide when the handheel'assumes this-position.

In the form of our invention shown in Figs. 1, 2 and 3 the right and left hand sights c antic-0 are independently operated in elevatingpi .llepressing them on their horizontal pivots giving them lines in this jfigure,

} frame 24 on the sight bar. H

i the said spindle by means of milled heads 25 platform B scopic kind. or of the open-bar type, com-.

ment of the training-shaft also enables it to be shorter than in the arrangements illustrated in the preceding figures, so that it is not necessary tohave the ball-joint or the toothed gearingarrangementson said shaft.

E is an auxiliary training hand-wheel which is situated on the side of the mounting opposite to that occupied by the men Nos. 1, 2, and 3, and 0 is the right hand sighting apparatus situated in a' convenient position to be used by the man working this auxiliary training-wheel E wh n standing on the This sight may be of the teleprising a bar with a fore sight 11 and a back sight 12 as shown in Fig. 20. The said bar is mounted on a. horizontal hinge 13 carried by a bracket 14: secured to the gun cradle and the movements of elevation and depression about said hinge are effected by a hand wheel 15 (see Fig. 20). This hand wheel is carried by a spindle 16 terminating at its inner end in a worm 17 which engages with a worm. wheel 18 mounted on a spindie 19 carrying a toothed wheel 20. This toothed Wheel gears with a segmental rack 21 depending from the bar e It will thus be seen that by actuating the hand wheel 15 the bar 0* will be caused to turn about its pivot 13 to a reater or less extent in accordance with die degree of elevation or depression required to be imparted thereto. n order to laterally adjust the sight for deflection the back sight 12 forms part of a nut 22 which gears with a screw threadedspindle' 23 (see Fig. 21). 'Thisspindle is mounted at its ends in a slotted traversing By revolving at the end thereof, the-back sight v. ill be caused to travel to the right or left of the sight bar and thus effect the desired changes in the deflection. By providing the aforesaid auxiliary hand-wheel E as well as the hand-wheel E, the training can be effected from either side of the mounting. This provision is necessary in view.of the fact' that as the opening in the armor of the casemate is restricted it sometimes happens that the view of the sight is obstructed on one or other side of the mounting when the latter is trained hard over in either direction. Thus in the mounting illustrated by Figs. 1

' to {L if the man No. 2 who does the sighting train the gun by his hand-wheel E in' acwere' to find that his line of sight were obstructed, as aforesaid, the man on the righthand side of the mounting would have to cordance with the directions of inan N o. 2.

The said auxiliary hand-wheel E also enables two men to simultaneously train the is requiredfor this operation than could be conveniently obtained. by one man.

deflection, by the man No. l.

training of the gun to be. effected by men Nos. 2 and 3' situated on the platform B In these arrangements the sights c' and 0 of which there is one on each side of the mounting, are adapted to be actuated'simultaneously, both as regards elevation and For this purpose the spindles c of the two sighting apparatus are mounted horizontally, as shown in Figs. 5 and S, and provided with cranks or crank-disks 0 which are coupled together, as shown in Figs. 10 and 12, so as to avoid the effect of a dead-center. This may be effected by a bent connecting-rod c", which is provided near its middle with a crank 0 carried by a bracket A on the gun-cradle. The said crank-disks 0 may, however, be connected together by any other suitable means for enabling the two sights to .be both elevated simultaneously. The worm spinsocket 0 Fig. l4, that is coupled with the crank-p ins c of. the disks a The said screw-threadedplug has a nut for enabling it to be turned for lengthening or shortening the cross-rod in accordance With the direc- 'tion of its revolution. A lock-nut c is also provided for retaining the said plug in its adjusted position, or the said plug may be I adapted to receive at its. outer end a screwthreaded pin 0, Fig. 13, and a nut-lock c.

For enabling the ready connection and disconnection of the connecting-rod with the said disks 0 the sockets c? or the screw-pins 0" may be formed with divided bearings, one member ofwhich is pivoted at c" to the other, so as to permit of their being separated or opened when required, a hinged stirruppiece or clip e carried by one of said members, being adapted to engage with the othermember to firmly retain the two members in their closed position. We also connect the two sightsby'a quickly-detachable cross-bar 0 Fig. 11, so that the lateral movement or deflection ofv the right-hand sight will simultaneously impart a corresponding movement to the sight at the lefthand side of the mounting. For this purr pose each sight c and 0 has fixed thereto a with a thumb piece or spring catch a, by

enable the long.

means of which the bar can be readily disconnected fromxth hts, if so desired. To? cross bar to be varied for initi... ly d io 11g the sights relatively to each other, the cross bar is made in two portions provided with right and left hand threads for engagement with an adjustting nut 0"" by which such portions are connected together, a lock not 0 being employed for retaining the parts in their adjusted position.

F or the purpose of indicating the range We employ a lar e drum or disk (3 mounted in connection with theisight. as aforesaid end graduated in large bold figures,'as indicated at Fig. 16. In some cases we arrange the drum or disk to revolve with respect to a fixed pointer C as in Fig. Land in other cases we arrange the pointer to revolve with respect to the drum or disk, as in Figs. 5, 8, and 16.

As the movements are very small at short ranges, we sometimes provide a special indicator arrangen'ient C connected with the axle of the movable pointer C by gearing, so as to Work after the manner ofthe secondshand of a watch, thereby enabling us to have large graduations for short ranges as well as for long ranges.

For the purpose of indicating the deflec tion or drift We provide a large drum or disk C Fig. 17, which may be graduated in degrees or knots, may be desired, said drum -or disk moving with respect to a fixed pointer, as in Fig. 1, or being fixed with repeat to a movable pointer (l arranged to travel over its surface, as represented in Figs. 5, 7', and 17.

With a quick-firing mounting fixed in a casemate the sights are arranged very close to the sidesof the mounting in order to avoid an excessive cutting away of the armor for the sighting-aperture. This position of the sights is found to be rather inconvenient-for the gunner. In such cases we rovide a tele .scopic or other sight with dei ecting prisms or reflecting-mirrors c, a, Fig. 15, so that although the eyepiece c of the sight is at a satisfactory distance from the center of the with the sighting elevating and training gear 7 mounting and in a convenient position for the gunner the actual line of sight m m'inay be close to the center of the mounting, thereby ctVOllllll the DGCBSSlt' of having alarge s1 htn Q ,dl lug-aperture m the armor or sl'neld.

What We claim and desire to secure b r v 1 I Letters l atent ot the U ited States 1s:

1. In a un-mountmi the combination and the means for enabling the operations of sighting elevating and training the gun to be independently performed by separate mink bers; of a platform movable with the mounh ing and upon which the said embers stand While performing their ruin ion, a support on said platl'crm for the outer part of the training-gear shaft, co y large subst hand-wheel mounted thereon, and means for enabling said hand-wheel to be shifted into and out of its operative position for the purpose s ecified.

2. n a gun-mounting, the combination with the sighting elevating and training gear and the means for enabling the operations of si htin elevatin and trainingthe un to be independently performed by separate num-- bers; of a platform movablewith the mount ing and upon which the said numbers stand While performing their function, support on said platform for the outer part of the training-gear shaft a comparatively large handwheel hinged thereto, and a detachable lock ing-pin for securing said. hand-Wheel to its shaft when it is turned into its operative po sit-ion substantially as described.

In a gun-mounting, the combination dth the sighting elevating and training gear and the means whereby .the operations of sighting elevating and training the gun can be independently performed by separate numbers; of means whereby the sight used by the gun-elevating number can be actu' ated for range and deflect-ion by the sightingnumber who issituated on the o posite'side of the mounting substantially as described.

4. In a gun-mounting, the combination with the sighting-elevating and. training gear and the means whereby the operations of sighting elevating and training the gun can be independently performed by separate numbers, of two sights one of which is situated at each side of the mounting, means for enabling the sight-setting number to actuate one of the sights, a bent connecting rod detach-ably coupled at each of its ends to a crank forming part of the sighting apparatus at each side of the mounting, and a crank supporting the said bent connecting-rod from a bracket on the gun-cradle, substa tially as and for the purposespeeified.

5; In a gun-l'nounting, the combination with the sighting elevating and training gear and the means whereby the operations of sighting elevating and training the gun can be independently performed by separate numbers 3 of two sights one of which is situated at each side of the mounting, means for enabling the sight-setting number to actuate one of the sights, a bent connecting-rod detacha l'ily coupled at each of its ends to a crank forming part of the sighting apparatus.

at side of the mounting, means for adjusting the length of said connectingrod, and crank supporting the said bent con? nscting-rod from a bracket on the gun-cradle itially as and for the purpose specified.

.6. In a gun-mounting, the combination with sighting, elevating and training gear and the means whereby the "operations of sighting elevating and training the gun can be independently performed by separate numbers; of two sightsone of which is situ.

' with the'sig ated at each side enabling thesi one of the sig ts, a connecting rod detachably coupled at each-of its ends to' a crank forming each side of the mounting, and a crank suprting. the-said connecting-rod from a r'acket on the gun-cradle, and for the purpose specified.

'7. In" a -mounting, the combination ing elevating and training gear and the means whereby the operations of sightinig elevating and training the gun can be in ependentlyerformed by separate numbers; of two si ts one of which is situated at each side 0? the mounting, means for enabling the sight-sett ing number to actuate oneof the sights, a connecting-rod detachably coupled at each of its ends to a crank formin part of the sighting ap aratus at each si e or the'mounting, means or adjusting the length of said connecting-rod, and a crank supporting the said connecting-rod from a bracket on the gun-cradle substantially as and for the purpose specified.

.8. In a -mounting, the combination with the sig ting, elevating and training gear and the means {whereby the operations of elevating and trainingthe gun can be -in' ependently 'erformed by separate niimbers; of two sig ated at each side of the mounting, means for enablin the sight-setting number to actuate 1 one of t e sights, a connectin rod coupled at each of its ends to a crank forming part of apparatus at each side of the a crank supporting the said the sighting mounting, an

of the mounting, means for connectingrod froma bracket on ht-setting number to actuate specified; part of the sighting apparatus at substantially as ts one of which is situcradle, su stantially as and for the purpose 9. In a n-mounting, the combination with the'sig ting. elevating and training gear and the means whereby the operations of sighting elevati'n" and training the gun can be independently 'erformed by separate numbers; of two sig ts one of which is situated at each side of the mounting, means for enabling the sight-setting number to actuate one .of the sights, a connecting-rod coupled at each of its ends to a crank forminfg art of the sighting-apparatus at each side 0 the moun ting, means'for adjusting the length of said connecting-rod, and a crank supporting the said connecting-rod from a brac et on the gun-cradle substantially as and for. the purpose specified. 1,0. 'A' sightfor ordnance comprising two sighting members disposed one on each side of the 11, means for simult aneously'elevat ing an depressin said members, and means for simult'aneousfy adjusting said members laterall 11. X sight for ordnance comprisinlg sighting members one disposed on eac of the gun and means for justing said members.

two side simultaneously ad- In testimony'whereof we have hereunto I set our hands 1n witnesses.

' ARTHUR TREVOR DAWSON.

' e GEORGE THOMAS BUCKHAllL.

Witnesses:

HENRY KING, ALERED Pants.

presence of two subscribing

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