US2083934A

US2083934A - Adjustable peep sight for firearms

Info

Publication number: US2083934A
Application number: US36815A
Authority: US
Inventors: Thomas R Arden
Original assignee: OF Mossberg and Sons Inc
Current assignee: OF Mossberg and Sons Inc
Priority date: 1935-08-19
Filing date: 1935-08-19
Publication date: 1937-06-15
Anticipated expiration: 1954-06-15

Description

\ 256M611 mom 33-253. (JR 2,083 934 5R June 15, 1937. ARDEN 2,083,934

ADJUSTABLE PEEP SIGHT FOR FIREARMS Filed Aug. 19, 1955 33. GEOMETRICAL lNSlRUMENTS.

Patented June 15, 1937 UNITED STATES am Re PATENT OFFICE Thomas R. Arden, Baldwin, N. Y., assignor to 0. F. Mossberg & Sons, Incorporated, New Haven,

Conn, a corporation Application August 19, 1935, Serial No. 36,815

4 Claims.

This invention relates to an improvement in adjustable sights for firearms, and particularly to adjustable peep-sights for such arms.

One of the objects of the present invention is to provide at a low cost for manufacture a simple, reliable and convenient adjustable peep-sight for firearms.

A further object is to provide a superior adjustable peep-sight characterized by its capacity for being conveniently adjusted, regardless of the particular relative rotary position which the sight-structure as a whole may occupy with respect to the adjacent parts of the firearm upon which it is mounted.

With the above and other objects in view, as will appear to those skilled in the art from the following, considered in conjunction with the accompanying drawing and appended claims, the present invention includes all features disclosed therein which are novel over the prior art.

In the accompanying drawing:

Fig. 1 is a view in side elevation of the receiverportion of a firearm, showing a peep-sight embodying the present invention mounted thereon;

Fig. 2 is a view in rear elevation of the peepsight with the supporting-means broken away;

Fig. 3 is a vertical central-longitudinal sectional View thereof;

Fig. 4 is a sectional view taken on the line 4-4 of Fig. 3;

Fig. 5 is a perspective view of the body-member of the sight, looking toward the rear face thereof;

Fig. 6 is a similar View of the operating-ring viewed from the forward end thereof;

Fig. 7 is a perspective view of the tubular detent;

Fig. 8 is a perspective view of the sight-shutter viewed from the rear; and

Fig. 9 is a similar view of the sight-shutter viewed mainly from its front face.

The particular adjustable peep-sight herein chosen for the illustration of the present invention includes in the main a body-member 20, a sight-shutter 35 and an operating-ring 44.

The body-member 20, above referred to, is provided with a forwardly-extending boss 23, the forward face of which provides a stop-shoulder 24, and from which forwardly offsets an externally-threaded tubular stem 25. The said bodymember is also provided with a knurled annular bead 26, just rearwardly of which the said bodymember is formed with an annular groove 21, the rear wall of which latter provides a forwardlyfacing retaining-shoulder 28 for the purpose as will hereinafter appear.

Extending axially through the entire bodymember 20, including the boss 23 and stem 25 thereof, is a sight-passage 29, the rear portion of which is enlarged to provide a spring-seat 30 and to accommodate a tubular detent 3| and a helical spring 32.

The tubular detent 3| is mounted in the enlarged rear portion of the sight-passage 29 of the body-member with capacity for reciprocation therein, and is yieldingly urged rearwardly by the helical spring 32, before referred to, to engage the beveled rear end 33 of the said tubular detent 3! with any given one of a series of four (more or less) forwardly-opening recesses 34 formed in the forward face of the rotary sight-shutter 35. Preferably, the recesses 34 are formed by rearwardly upsetting the metal of the said sightshutter. The said recesses 34 are respectively centrally arranged with respect to four (more or less) sight-

apertures

33, 31, 38 and 39, of graduated diameters, the smallest being said aperture 36 and the largest thereof being the said aperture 39, as particularly well shown in Figs. 8 and 9.

Upon its periphery the sight-shutter 35 is formed with an annular series of gear-teeth 40 and bears in a shallow eccentric recess 4| rearwardly opening from the body-member 20 and intersecting the periphery thereof. The periphery of the said recess conforms to and provides a bearing for the periphery of the said sightshutter, which it serves to centralize. Meshing into the teeth 40 of the sight-shutter 35 is an annular series of inwardly-projecting gear-teeth 42 formed upon a gear-ring 43 rigidly mounted in the interior of the cup-shaped operating-ring 44 preferably by being forced therein. The forwardly-extending annular flange 45 of the operatihg-ring 44 has its forward edge inturned as at 46 (Fig. 3) for engagement with the retaining-= shoulder 28 of the body-member 20. The rear or end wall 41 of the said operating-ring 44 is provided with a central sight-opening 48 registering with the axial sight-passage 29 in the body-member 20.

The body-member 20, rearwardly of its retaining-shoulder 21 has its periphery cut away as at 49 to clear the gear-ring 43, which latter, together with the operating-ring 44 of which it forms a part, is free to rotate upon the said bodymember for adjusting the sight in a manner as will be presently described. It will be noted by reference to Fig. 3 that the rear wall 41 of the operating-ring 44 serves to retain the sightshutter 35 in the recess 4| of the body-member against rearward displacement with respect thereto. Y

The body-member 20, and hence the entire sight-structure, may be mounted upon any suitable support, and, as shown in Figs. 1 to 4 inclusive, the tubular stem 25 of the said bodymember is threaded into an internally-threaded bore 50 formed in a cross-slide 5| mounted in an apertured cross-bar 52 forming a feature of a sight-support, generally designated by the numeral 53 and upstanding from one side of a firearm-receiver 54, as indicated in Fig. 1.

As shown in the accompanying drawing, one of the intermediate size sight-apertures (38) in the sight-shutter 35 is in registration with the sightopening 48 of the operating-ring 44, and also in registration with the sight-passage 29 in the bodymember 20 and hence in registration with the hollow interior of the tubular detent 3|. As the parts are thus set, a clear line of vision may be had axially through the sight-structure, the effective diameter of which is determined by the particular one of the sight-apertures 36 to 39 inclusive which happens to be in registration as referred to.

If now, the knurled exterior of the flange 45 of the operating-ring 44 is grasped and turned with respect to the body-member 20, the gearteeth 42 carried by the said ring will efiect the rotation of the sight-shutter 35 and bring the desired one of the apertures 36 to 39 inclusive into registration with the sight-opening 48 in the said ring and with the sight-passage 29 of the bodymember 20. As the sight-shutter 35 is moved, the tubular detent 3| against the resistance of its spring 32 by the coaction of the wall of the particular recess 34 surrounding the sight-aperture 38 with the beveled rear end 33 of the detent 3|. As each sight-aperture 36 to 39 inclusive comes into registration with the sight-opening 48, the beveled end 33 of the said tubular detent 3| will snap rearwardly into the particular one of the recesses 34 at the forward end of that particular sight-aperture, and will serve toyieldingly hold such sight-aperture in proper registration.

One of the particular advantages of the adjustable peep-sight structure illustrated and described is that, regardless of what position the eccentrically-positioned sight-shutter 35 occupies when the sight is mounted with reference to the receiver 54, the operating-ring 44 may be grasped from the most convenient direction and turned to effect the adjustment of the said sight-shutter.

The invention may be carried out in other specific ways than that herein set forth without departing from the spirit and essential characteristics of the invention, and the present embodiment is, therefore, to be considered in all respects as illustrative and not restrictive, and all changes coming within the meaning and equivalency range of the appended claims are intended to be embraced therein.

I claim:

1. In an adjustable peep-sight, the combination with a body-member having a sight-passage will be cammed forwardly therein; of a rotary sight-shutter carried by the said body-member and having a plurality of differentially-sized sight-apertures sequentiallyregistrable with the sight-passage of the said body-member to vary the effective size thereof; and an annular adjusting-ring also carried by the said body-member and rotatable with respect thereto; the said adjusting-ring being operatively connected to the said rotary sight-shutter for turning the same upon rotation of the said ring to vary the effective size of the sight-passage in the said body-member.

2. In an adjustable peep-sight, the combination with a body-member having a sight-passage therein; of an adjustable sight-shutter carried by the said body-member with capacity for rotation with respect thereto and having a plurality of differentially-sized sight-apertures sequentially registrable with the sight-passage in the said body-member and provided with gear-teeth; and,

an annular adjustin -ring also carried by the said body-member and having gear-teeth engageable with the gear-teeth of the said sight-shutter for moving the same to vary the effective size of the sight-passage in the said body-member.

3. In an adjustable peep-sight, the combination with a body-member having a sight-passage therein; of a rotary sight-shutter having a plurality of differentially-sized sight-apertures carried by the said body-member and movable with respect thereto to vary the effective size of the sightpassage therein; and a cup-shaped adjustingring rotatably mounted upon the said body-member and having a flange completely encircling the said sight-shutter and serving to retain the said rotary sight-shutter in place and operatively connected thereto for turning the same to vary the effective size of the sight-passage in the said body-member.

4. In an adjustable peep-sight, the combination with a body-member having a shutter-receiving recess and also having a sight-passage intersecting the said shutter-receiving recess; of a rotary sight-shutter mounted in the shutterreceiving recess of the said body-member and having a plurality of differentially-sized sightapertures sequentially registrable with the sightpassage in the said body-member and also having peripheral gear-teeth; a tubular detent mounted in the said body-member in registration with the sight-passage therein and engaging with the said rotary sight-shutter to yieldingly hold the same in various positions of adjustment; and an annular adjusting-ring of cup-shaped form carried by the said body-member with capacity for rotary movement with respect thereto and having an aperture in its end wall aligned with the sightpassage in the said body-member; the said adjusting-ring having inwardly-extending gearteeth engageable with the peripheral gear-teeth of the said sight-shutter to turn the same for sequentially registering the sight-apertures therein with the sight-passage of the said bodymember.

THOMAS R. ARDEN.