US1433514A - Firearm - Google Patents

Description

A. BQIP-RAYTT.

WITNESSES INVENTO R %MA9M Bk M M ATTORNEYS A. B. PRATT. FIREARM.

APmcAflon FILED JUNE 22.

Patented Oct. 24,1922

2 SHEETS-SHEET Z- WITH/8859 Arm/Mm I Patented Oct. 24, 1922.

or .SAID ALBERTB. IPRAT'I, DECEASED. a

. rrniiami.

Application .fil e'dlune 22, 917. Serial No. 176,367. a

ed to me on July 18, 1916.

The object of the present invention is to provide anew and improved firearm ar ranged to insurefaccurate shooting at any range up to the limit distance without requiring any material change inthe position of the firearm relative to the hands, face, arms,*shouldersj and eyes of the marksman. Another'object is to enable the marksman to marksman to firmly hold'the firearm in position with a View to prevent rolling action of the firearm while taking aim.

In order to accomplish the desired result use is made of a firearm provided with a stationary rear sight and "an adjustable front sight for varying the elevation of the firearm relative to'the range. j a

A practical embodiment of the invention is represented in the accompanyingdrawings forming a part ofthis specification, in which similar characters of'reference lnd cate corresponding parts in all the views. j

showing more particularly the 'rear'sfight, parts of which are shownbroken out;

Figure 3 sight in position on the barrel; g

Figure 4 is a longitudinal central section of the same on the line 44 of Figure5 Figure 5 is a rearface iew of the rear sight in position on the firearm, part of which is shown in section; f H V a I v Figure 6 is a sectional side elevation of the removable pistol grip in position on the main stock v Figure 7 is an enlarged side elevation of the front end of the barrel provided with the front sight and the bayonet holder;

quickly find and to aline the front and rear' sights. Another object is to enable the] Figure 1 is aside elevation of the firearm} Figure 2 is an enlarged cross section of; the same on the line 2-2 of Figure 1 and is aside elevation of the rear;

I scribed.

ALBERT Bacon PRATT, onLYNnon, -SYTERIVIONT;DAVIDE;JPOR'IIEEIEtA]31V.(1I1\TIS'.ERAZIJOJR.

.- "Figure 8 is an inverted' plan view of the s me;

Figure 9 v is a longitudinal central section of the front sight in position on'the barrel"; Figure 10, is a cross section of the same on the line 10-10 of Figure? Figure 11 is a similar viewof the the line 11 11 of Figure 7;

Figure 12 is a perspective view of one of:

same on i theclamping members forclampin the rear si ht in the adjusted :position; an

on the line 13-13 of-Figure 7 the bayonet holder in elevation. U

Rifles and similar firearms as heretofore constructed are provided with a vertically" ad ustable rear sight anda stationary front" sight. F oradjusting the firearm to differ-1 that changing of positions rende rs the ob-.

Figure 13 is a cross "section ofthe barrel.

, and showing" raise or lowerthe rear sight, but in doingso" a correspondingchange of the holding posi-f tion ofthe firearm relativ'eto' the marks-g l i 70 ent ranges it is necessary to correspondinglyf taining of the proper aim very difiicult especially when the range exceeds, say, 200

yards. A further disadvantage is that when attempting to' aim, a rolling action is given to the firearm incident to the shape and an 1 f of the drop ofthe stock, and inaccurate. shooting is the result. 'VVith my improvefirearm is held practically inthesame posi-v tion for the different ranges and accurate by making the rearsight permanent and the rection when held in a horizontal position by the pistol grip.

'piece 23 having its upper edge inclined fon wardly and downwardly fromlthe heel 24 to and'quick sighting can be had for any range 3 front sight adjustable man up and'down diment presentlyto be described'in detail, the

The firearm shown in Figure 1 consists es sentially of a barrel 20, a firing mechanism the comb 25, and with the axis'of the'barrel 20 approximately intersecting the heel 24 as plainly indicated in Figure lxfThe' pistol grip 27 hereinafter .more fully def i I thumb recess 26-is arranged in frontof the comb 25 and located opposite a removable The firearm is provided with a stationary :rear sight and a vertically adjustable front sight 31. The rear sight3Q1s'loca-ted on thefirearinatany convenientpolnt be tween the shooters eye and the muzzle sight 31 either on the stock, frame, barrel or firing' pin; .By' elevating,thexheel 2 L relat1ve-to= theaxis of .thebarre'l QO 'and"iprovidingaa,

permanent rear sight 30v and a vertically adfl justable front sight 31 the marksman ls I l abled to hold the firearm practically in the same position when firing'"'a't' a 'shortor a"? longrange up to the limited distance of the firearm. Itis understood: that the vision Of the marksman is changed comparatively littleok'ving. to the conibinedarrangement of the butt stock "23., 'tl'1e permanent rearjs ght 3O andtlie adjustable. frontsight'3lr ,i'lhe rearsight30-is preferablyconstruete d as follows, special" 'reference'being had to wise securedto' thetop ofthe rear end of the :barreLZQJ. The carrier;32lat}its rear facefis provided with aif transversely extending dovetail tongiief36 engagedfl by a: dovetail groove 37 formed on the front face'of the rear sighting piece 38 provided on the. top with. thefusual, sighting notch 39 and on the front with a center indicating line 4-0 leading tofithe center'of the notch 39,113ipl i illy shown" Figure. ,5 .On 'th'ef'rear face of the: sighting piece .38 is pivotedlatfl ii' a peep sight 6 havi e e QP fl I a ap d t I "isterwithjthe notch 39 at the time-the peep sight v46 is swung upward .fromI normal ins active lowermost position into" uppermost active. pos1t1on,. as indicated 1n {Figure LL 40 i The peep sight"46'.is -providedat its pivotal endflw'ith' a squareheel 48 pressedon ,"by a V spring. 49. to holdthepeepfsight 4L6 firmly in either lowerniost' inactive or in uppermost I I active position, asabove explained} In orderv to. provide the desired ,w indage-g edge .in' f'any' position the sightingpiece 7 may be swung into,*that"is, np or own. ace cording to -the range. The sighting rib77 is flanked by, cheeks 78to protect the "sighting;

useisfniade ofa screw. nioi1fnted to tnrn on a transverse ,shaft {51 journaled in, thesides:

of "the, sight carriage 32 and the 'said 's'crew engages screwthrea'ds J52jforrhed on'the face I of, the sighting piece 38 so'that, when the screw is turned a corresponding sidewise shifting of thesighting piece sesame-place" 7 to compensate for the force ofthe wind p revailingatgthe time, IThefscrew 50lextends Within a recess, 53".;for lnecl' in jthe arrie .32, spnimy 'shown lin fllignre. Q41, and the said screwis protectedby] alocking cover or hood 7 A pivoted at 55 -onthessides of the carrier The cover. 5.4 is provided-iat'it s sides with extensions'56 (see Eigurefiino'rmally engagin the sides :of v,the sightingpiece; 38- 'at the. tune the latt'er is in central position on. the carrier 32, so -tha't the sighting piece-1 38 is locked against transverse Inov'emen't'.' When it is desired to shift the sighting piece 38 transversely for windage, as previously xinentioned, then it is necessary for the marksman to' 'swing the cover 54 upward into the ipositiefl lshowfi in i dotted lines in Figure 3, to disengage the side extensions 56 frornthe'sides of thesighting piece'38 to allow shifting ofythe latterin a'transverse direction on turning the screw 50 correspond ingly. It will be noticed that -when the "cover 54 is in closed positionth'e screw 50 is ol tyof reach of theinarksma'n and .conse quently" cannot be accidentally turned.

clocking I i In orderto holdthe rearsight 3O inverti-g cal active'position' or in folded horizontal" position, use f is n'ade I of locking pins "60 mounted to Slide in the underside of the, car- -1-ier32 'and pressed'o'n bysprin s 61 (see Figure =.The'.lofwer 'ends' of tl i pins 6O'f'are adapted :to' engage recesses 62 formed inithelt'opof the saddle eatoheldthe' carrieri32in,verticalactive position, as illns g Y trated. in-Fignres 2,"3,}4L1 and*5." Tlie'rear' sight. 30 is dapted .to be' swung forward into horizontal position; and when this position' 7 formed in the front face 0f the saddle35 (se'e'f F ignre' Q) fto "hold 't'he' frontsight locked f is reachedjthe pins" 60 engage recesses 63 this folded position.

The front sight 31-.is constructed asifol? lows, special reference being had to Figures 7, 8,,9, 10,.1 l"and 12: ,On the frontendqf the barrel 20Iis fastened a sleeve-7011);. means ofajkey 'lllsee Figures 9,1 0 and 11-) and at.

the'rearupper portion ofthe sleeve 70 are arranged transversely." extending pivots 72.

on which is mounted'to swing u 'anddown a V 3 front. sighting piece" 7 3 having "segmental side arm'siLconnected with each other by. a... cross'pla-te 75'. On the. forward end 'df the f cross piece 'Z5Iis secured a base flfijprovided v on :tQp: -VV ltl1 a sighting rib 7 7' and extending longitud nally in a. vertical plane passing} through the axis of the barrel 20.. rib 7 7 is curved, ,asplainly shown inFiglire 9, so

that thefto p of the'ridge fornns a sighting rib against sidewise glare and-t0. permit the Whensighting. "."The sighting rib 77 as well as the cheeks 78 form integral parts of the .base 'Z and vthe base is shrunk or otherwise -firn'1ly secured. to the cross plate 75 of the sighting,.pifece'73. .In order to prevent' top glare reaC/hi ngljthe. sighting ,rib 77 use is made of a hood' 80 pivoted at .81 on the side] armsM and adapted; to be swung up into vertical positionacross the top of the cheeks :78 and thesighting rib 77, as indicatedin I dottedlines in Figure Normallv the hood" 8O,fh( vvever',-v is in lowermost position Qwith.

the Ioweredge'o f its fc'rosspiece'resting'on the side .arn1s74 of the sighti'n'gpiece 7 3. Each of the side arms 7 4 is provided on its outer face with a distance graduation 85 representing yards or other similar unit measurement. The marginal portions of the side arms 7a are engaged at their faces by flanges 86 forming integral parts of the front end of the sleeve 0. One of the flanges 86 is provided with a pointer 87 indicating the range on the corresponding mark of the graduation 85.

In order to lock the sighting piece 73 in the adjusted position, use is made of clamping members or shoes 90 engaging the peripheral edges of the side arms 74:, and the said clamping shoes 90 are mounted in guideways formed between the sides of the sleeve 70 and'theflanges 86, as plainly indicated in Figures 7 and 10. The lower ends of. the clamping shoes 90 are mounted on eccentric trunnions 91 formed on the ends of a shaft 92 extending transversely and journaled in the lower front portion of the sleeve 7 0 (see Figure 10). On the shaft 92 is secured a handle 93 extending normally rearwardly in an approximately horizontal position. The shaft 92 is provided with a flattened portion 94: (see Figures 9 and 10) engaged by the free end of a spring 95 secured by a screw or other fastening means 96 to the sleeve 70, as shown in Figure 9. The spring 95 normally holds the handle 93 in a horizontal position with the clamping shoes 90 in looking engagement with the peripheral edges of the side arms 74.

Whenit is desired to unlock the sighting piece 7 3 the marksman swings the handle 98 downwardly and foiwardly to turn the shaft 92 to cause the eccentric trunnions 91 to move the shoes 90 out of clamping position relative to the peripheral edges of the side arms 74. The sighting piece 78 can now be swun u or down until the ointer 87 indi cates the desired range on the corresponding mark of the graduation 85.' The handle 93 is then swung backward and upward to its normal position to re-engage the clamp-- ing shoes 90 with the side arms 74: to lock" the sighting piece 73 in-the adjusted position,

against the under side ofthe corresponding flange 86 to prevent any possible accidental movement of the shoes and to insure a proper clamping of the side arms 74. 7

On the barrel 20 immediately in the rear of the front sight 31 is arranged a bayonet holder 100 depending from a bracket 101 having a base 102 provided with a dovetail- Each of the shoes 90 is preferably provided with an ofi'set 97 adapted to bear be engaged: bythecarryingstrap whenever.

such is used.

and thelatter is provided with a nut'112 screwed or otherwise fastened in the stock,

as plainly indicated in Figure 6. In the nut 112 screws a screw 113 having a reduced portion 11% and extending in an opening 115 formed in the pistol grip 27. The reduced portion engages a bearing 116 screwed or otherwise secured in a recess, in the bot tom of the grip 27, and on the lower end of the reduced portion is formed a head 117 adapted to be taken hold of by the marks man for turning the screw 113 witha view to screw the screw in or out of the nut112 whenever it is desired to fasten the pistol grip in place or remove it therefrom. ,The'

head 117 is preferably flush withthe under side of the pistol grip 27 to present no undesirable projection and thus to allow taking, T

convenient hold of the pistol grip whenever it is desired to do so. The pistol grip 27 is provided with a pin120 arranged parallel to the screw 113 and in front of the same, the pin engaging a recess 121 formed in the stock to prevent the pistol grip 27.from accidental turning.

,It is understood that l do not limit myself to the detailconstruction of the invention as shown and described, as the same may be varied without deviating from the spirit of my invention. I

Having thus described my invention, I

claim as new and desire to secure by Let ters Patent I 1. A shoulder-supported firearm comprising, in combination, a stock havinga top portion closely adjacent a line passing through the axis of the barrel, a rear sight adjacent the breech of the gun and fixed against vertical movement, and a vertically adjustable front sight, whereby adjustment of the sighting system for different ranges necessitates substantially no change in the position, of the head of the marksman rela-" tive tothe stock of the gun, and whereby the aim at all ranges is steadied by the cheek of the marksman resting against the top portion of the stock.

2. A shoulder-supported firearm comprising, in combination, a stock having a top portion closely adjacent a line passing through the axis .of the barrel, said stock sloping downwardly from heel to comb, a I

rear sight adjacent the breech of the gun and fixed against vertical movement, and a vertically adjustable front' sight, whereby adjustment of the sighting system' for different ranges necessitates substantially no change in the position of the head of the marksman relative to the stock. of the gun, and whereby the aim at all ranges is steadied byv the cheek .of. the marksman resting nut, and a pin 01 1' the saidpistol gripseng aigagainst the top portion of the stock. *ing thesaid recess. s

A firearm provided With n-stock prot, g videdat the underside with an embedded: A B R B O P T ;5- nut and a recess spaced from the said nut, Witnesses: v

a pistol grip, ascrew mounted to turn in v A. F.'-SN 0W,

the-said pistol grip andscrewing in thesaid. E. A. MORSE.

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