US2817904A

US2817904A - Gun sight

Info

Publication number: US2817904A
Application number: US410870A
Authority: US
Inventors: Grover C Lee
Original assignee: Individual
Current assignee: Individual
Priority date: 1954-02-17
Filing date: 1954-02-17
Publication date: 1957-12-31
Anticipated expiration: 1974-12-31

Description

33;258m XR 2,817,904 SFU Dec. 31, 1957 G..ALEE 2,811,904 y tmsrca'r med keb. .17. 1954 y Y I )agit/0 o mi .uae QL-1%... '7

INVENTOA 6km/ff? c. 5 j X GUN SIGHT Grover C. Lee, Royal Oak, Mich.

1 Claim. (CI. 33-58) This invention generally relates to gun sights and particularly pertains to a new, novel, and inventive simpliiied rear gun sight capable of quick, accurate elevation and deection adjustment. f

The art has many rear gun sights which are capable' I eral views, the gun sight 1 0 disclosed therein to illustrate of adjustment for elevation and deflection to compensate for height and drift deviation, however, the several devices of the prior art have not proven entirely satisfactory inasmuch as they are complicated in design and construction, expensive to manufacture, ditiicult to use and adjust, and difficult to maintain in adjustment.

With the foregoing in view, the primary object of the invention is to provide an adjustable rear gun sight which is simple in design and construction, inexpensive to manufacture, easy to use and adjust, and capable of maintaining adjustment.

sight which can be used andl adjusted by the average sportsman as well as the expert rifleman,

An object of the invention is to provide a rear gun sight which can be tted to all sizes of ritles and carbines without changes in the assembly or re-arrangement of parts. i

An object of the invention is to provide a rear gun sight which has a base directly mountable on the gun barrel or breach which is pivotally mounted at its muzzle end, which is equipped with a micrometer deection scale for reading against an index point on the gun, and which-isn equipped-.with antarcuatelotfonswinging the breach endoi-lhebase.

An object of the invention is to provide a shoulder portion on the base having a micrometer threaded aperture midway between the front pivot and the breach scale so that pivoting the base moves the shoulder aperture onehalf the distance indicated on the micrometer deflection scale to give tine adjustment.

An object of the invention is to provide a micrometer threaded neck portion threadable into the shoulder position.

An object of the invention is to provide a double-faced head on the neck portion having like eyepiece receiving sockets on either side thereof in the back to back relationship so that the head can be screwed up or down on the micrometer neck thread in the shoulder so that a half turn micrometer thread adjustment can be made with an eyepiece receiving socket being aligned parallel with the barrel.

An object of the invention is to provide a four-faced head on the neck portion having like eyepiece receiving sockets on four sides thereof in back to back relationship so that the head can be screwed up or down on the micrometer neck thread in the shoulder so that a quarter micrometer scale adjustment can be made with an eyepiece receiving socket being aligned parallel with the barrel.

These and other objects of the invention will become apparent by reference to the following description of an adjustable simplified rear gun sight embodying the inven- V 5l` Fig. 2 is a relatively enlarged side elevational view yot' A vthe inventive gun sight as seen in Fig. 1 approximately 'ofthe deviceiacilitating A vmicrometer elevation adjustl5 ment and 1 V25 so that the screws'13 and 15 can be loosened and the base" h .drift and other lateral compensations, the base 12 carries 80 gun 11 so that the person using the devicecan determine An object of the invention is to provide a rear gun screw 13 and the end9 of the base 12 which carries the l10n taken in conn ing,inwhich: ,Y Fig. 1 is a side'elev o ventive rear gun sight mounted thereon;

` actual size, partly in cross-section showing the mounting; Eig. 3 is a top plan view of the device as seen in Fig. 2;' Fig. 4 is a cross-sectional view of thedevice taken on Fig. 5 is a cross-sectional Fig. 6 is a top' pian view or me four-sided modification refer to like and corresponding parts throughout the sevthejinvention mounted on lthegun 11 comprises a' basev 12 having av front o r muzzle end aperture for `receiving lthe mounting and pivot-screw 13 Aand a rear or'breach end arcuate slot 14 for receiving the mounting screw 15 12 pivoted at the screw 13 with the arcuate slot 14 by, passing vthe screw 15 to permit adjusting the base for a scale 16 forreading againstthe index 17 located on thev the amount of adjustment he is making. i v' The shoulder'18'is mounted Ion the,- basel l2 and rs. equipped with a'centrahthreaded aperture 19 preferably` at a point equidistantbetween thecenterof' the pivot index 16 so that the shoulder aperture119'moves half the distance indicated on thev scale 16 whenA lateral compen# sation is made, thereby providing tine'adjustment.

The threaded neck 2,0 is receivable in theshoulder ap- 40 erture 19 and the head 21 is mounted on the neck 20 and is equipped with a transverse bore providing like faces, 22 and 23 on either side of the head 21 so that the eye-y i piece 24 canbe screwed or received in either side of the head 21, thereby facilitating half turn adjustment of the head 21 relative to the base 12 as hereinafter more fullyl v' `v explained. vThe base 12 is provided with a set screw 2S for clamping the neck 20in' its adjusted position. 4 t Y Referring to Figs. 6 and 7, it will be noted that the modified head illustrated therein has two intersecting

transverseV bores

30 and 31, each having like faces 32,

33, 34, and 35 capable of receiving the eyepiece 24 therein, thereby providing quarter turn elevation adjustment as hereinafter more fully explained.

The scale 16 and the thread in the aperture 19 and on the neck 20 are preferably of known value such as the micrometer scale or the mil scale which is adapted easily for any length barrel in conjunction with the relationship and the distance to the front sight.

As an illustration, assuming the barrel is 36 inches1 long and that a mil is the angle defined by a yard varation at 1000 yards, the index 16 can be so scaled and the thread on the neck 20 can be so angulated. Obviously, these scales can be so graduated for any other distance such as 500 yards or 250 yards and in shooting at closer distances the finer adjustment can be made with the inventive device due to the fact that the head 21 is mounted midway between the pivot 13 and the index end 9 and due to the fact that the head is pvotally mounted it can easily be aligned in parallel relationship to the lateral adjustment.

In adjusting the device, such as shooting-in a gun, the lateral correction such as `for drift and other sidewise deviation can be made by loosening the screws 13 and l5 and sliding the end 9 of the base to the desired position and then retightening the

screws

13 and 15. In adjusting the device for elevation; it is only necessary to remove the eyepiece 24 and loosen the set screw 25 so that thct neck 20 can be freely turned n the bolts 18 of the base 12 or the eyepiece can be left in the head 21 to determine the amount of adjustment or turning of thc neck 20 relative to the base 12 and then relocated in the rear aperture or face of the

head

21 or 29, and-it can easily be seen that a very fine adjustment can be achieved through half turns of the head 21 or quarter provided with more intersecting transverse apertures such as 3 of 4, thereby in shape.

IIgelaim: t t l A simplied rear gun sight eompnsmg n-basemn l mountable on a gun having a lthreadedy aperture intenv mediate the ends thereof, la neck threadable in said basef aperture, a head on said neck having two transverse intersecting apertures having likeopposed eyepiece reoeving ends constituting like yfour-faces at variation, an eyepiece receivable in any of said faces; said multi-faced head facilitating quarter turn adjustment of said neck in said base to raise and lower said head to compensate for elevation; and meansfor securing said neck inadjusted position. p sf( L References Cited inthe le of this patent Learock 1864 l 1,113,471 Neuen i-- oct. 13, 1914 1,834,248 Lorenzen Dec. l, 1931 2,250,109 Iuly 22, 1941 2,682,707 July 6, 1954