US3386171A

US3386171A - Binocular rib sight

Info

Publication number: US3386171A
Application number: US516869A
Authority: US
Inventors: George C Luebkeman
Original assignee: Individual
Current assignee: Individual
Priority date: 1965-12-28
Filing date: 1965-12-28
Publication date: 1968-06-04
Anticipated expiration: 1985-06-04

Description

June 4, 1968 c. LUEBKEMAN 3,386,171

BINOCULAR RIB SIGHT Filed Dec. 28, 1965 2 Sheets-Sheet 1 Gearye 612 2225,, BY

June 4, 1968 G. c. LUEBKEMAN 3,386,171

BINOCULAR RIB SIGHT Filed De. 28, 1965 2 Sheets-Sheet 2 INVENTOR. deorye C. lueblmarz nited States Patent 3,386,171 BWOCULAR RIB SIGHT George C. Luebkeman, Cincinnati, Ohio (115 Mt. Neho Road, Cleves, Ohio 45002) Filed Dec. 28, 1965, Ser. No. 516,869 3 Claims. (Cl. 33-47) This invention relates to improvements in binocular gun sights and has for its prinicpal object the provision of a rib sight for firearms which will have an elongated and laterally restricted eye-attractive area superimposed and so arranged on the rib sight that said area will present a distinctive and attractive image to the aiming eye only of a shooter employing binocular vision while concealing the said area from the non-aiming eye.

Another object of the invention is to provide a binocular rib sight for firearms which has a longitudinally extending groove formed in the upper surface of the rib, the groove having a distinctive area disposed in the trough thereof that is attractive to the aiming eye of the firearm user, the upstanding sides of the rib formed by the groove effectively shielding the distinctive area from the nonaiming eye of the user.

A further object of this invention is to provide a binocular sight having the foregoing characteristics which is simple, yet rugged in construction, is maintenance free and which may be readily installed on existing guns having a rib thereon.

Other objects will become apparent from the following specifications taken in conjunction with the accompanying drawings, wherein:

FIG. 1 is a fragmental, side elevational view of the barrel of an exemplary single barreled shotgun with one form of my improved binocular rib sight mounted there- FIG. 2 is an enlarged, fragmental front elevational view of the fiirearm barrel shown in FIG. 1.

FIG. 3 is an enlarged, fragmental section taken on line 33 of FIG. 1.

FIG. 4 is a fragmental, side elevational view of the muzzle end of a shotgun barrel showing a slightly modified form of the binocular gun sight depicted in FIG. 1; parts being broken away and shown in section.

FIG. 5 is a fragmental, top plan view of the barrel of a shotgun showing another modified form of my binocular rib sight.

FIG. 6 is an enlarged, fragmental section taken on l ne 66 of FIG. 5.

FIG. 7 is an enlarged, fragmental section taken on line 7-7 of FIG. 5.

FIG. 8 is an enlarged, fragmental section taken on line 8-8 of FIG. 5.

FIG. 9 is a greatly enlarged, fragmental plan View illustrating a modified form of the rib sight shown in FIGS. 1-3 of the drawings.

FIG. 10 is a fragmental, side elevational view showing a further modified form of the rib sight.

FIG. 11 is a fragmental, enlarged section taken on line 1111 of FIG. 10.

FIG. 12 is an enlarged, fragmental section like FIG. 11 showing a still further modification of the rib sight.

With particular reference to FIGS. 1-3 of the drawing the numeral 12 is a shotgun barrel having the usual elongated rib 13 mounted thereupon which extends from the muzzle end 14 to the rear end portion 15 of the barrel; said rib being preferably tapered in its heightwise dimension from the muzzle to said rear end portion. 'It is contemplated that the rib 13 may extend the full length of the barrel and the barrel receiver but the rib may extend a foreshortened distance rearwardly from the muzzle end of the barrel without departing from the spirit of my invention. As indicated in FIGS. 2 and 3 the rib 13 is bisected longitudinally by the vertical plane containing the center axis of the barrel 12; said vertical plane being indicated in said figures by the dot and dash lines 16. The flat upper surface 17 of the rib lies in a plane normal to the said vertical plane.

A laterally restricted, upwardly opening groove 18 is formed centrally in the flat surface 17 of the rib to extend longitudinally thereof from the rear portion 15 of the gun barrel into and through the muzzle end 14 of the rib. As shown in FIG. 1 the groove 1% is deepest at the muzzle end of the rib and said groove progressively becomes shallower as it extends rearwardly until the groove blends with the upper surface 17 of the rib at the rear end portion 15 of the barrel.

It will be seen from FIGS. 2 and 3 that the groove 18 has a trough portion 1% and forms opposed upstanding sides 20 and 21 on the rib and that the trough portion only of the groove is provided with an eye-attractive a ea 22 which, as shown in FIG. 1, extends from the muzzle end of the rib rearwardly toward the shallower part of the groove, the area terminating short of the place where the groove blends with the planar upper surface of the rib. It is contemplated that the eye attracting area be a fluorescent or a distinctively colored coating, or the like, but other means may be used that will give the forward trough portion of the groove eye-attracting characteristics.

Several factors must be considered in order that the eye-attracting area 22 be observed only by the aiming eye of the gun user, employing binocular vision, whilst the non-aiming eye will not see the area 22 at such time, the factors consisting of the width and depth of the groove, the longitudinal extent of the eye-attractive area 22 in the trough of the groove and the individual mannerisms of the gun user in the act of aiming and firing the gun using binocular vision. Nearly all gun users cock their heads at an angle over the gun stock while in the act of placing the aiming eye in proper position, such head position placing the non-aiming eye on a relatively higher level with respect to the rib sight than the level of the aiming eye. Thus the sight line of the non-aiming eye has a greater angle of incidence with respect to the rib sight which requires a dimensional correlation between the said first two mentioned factors. The said area 22 and the groove are so arranged that when the hunters aiming and non-aiming eyes are in proper position for directing the gun at a target the side of the groove toward the non-aiming eye will conceal the eye-attractive area 22 from said non-aiming eye while providing the aiming eye with an attractive and elongated sighting field down the center of the groove.

If desirable the usual ball sight 23 (FIG. 4) may be mounted on the muzzle end of the barrel in front of the forward terminal end of the rib 13 provided with the binocular sight that is illustrated in FIGS. 13 of the drawings. This ball sight in conjunction with my binocular rib sight may be considered advantageous to certain gun shooters wishing to use my rib sight.

Reference is now made to the modification of the bin- Ocular rib sight illustrated in FIGS. 5-8 of the drawings wherein the gun barrel 12; is provided with the elongated rib 13, it being understood that this modification may or may not have a conventional ball sight 23 mounted in front of it on the muzzle end 14 of the barrel. The modified binocular rib sight has an elongated and laterally restricted groove 24- extending from the muzzle end of the rib to the rear portion thereof and, as indicated in FIGS. 6-8 of the drawings, said groove is formed to become progressively shallower as the rib itself becomes thinner in a heightwise direction and as both extend rearwardly toward the rear end portion of the barrel. The groove is formed with a trough 25 and opposed

upstanding sides

26 and 27, the groove having an eye-attractive area 28 in the trough 25 thereof.

The groove 24 is bisected laterally by an upstanding fin 25 along an intermediate part of its length whilst it is further trisected laterally by a pair of spaced

fins

30 and 31 along its rear portion. The fins serve as longitudinally extending side walls to better conceal the eye-attractive trough area 23 of the groove from the non-aiming eye of the shooter especially in certain of my binocular sights which may have an exceptionally wide groove therein, it being noted that as the binocular rib sight approaches the rear portion of the gun barrel and the groove therein becomes shallower the number of fins are progressively increased in number.

Operationally the relatively wide groove 18 of the rib sight illustrated in FIGS. 13 of the drawings may be made more effective by foreshortening the length of the eye attractive area 22 in the trough thereof and abruptly terminating said area at a point 100 intermediate the ends of the rib sight. In addition, and with reference to FIG. 9 of the drawings, said eye-attractive area 22 may be attenuated at its rear portion 1M by gradually reducing its lateral extent in the groove until it terminates in a narrow restricted end 102 at a point intermediate the ends of the rib sight.

A further embodiment of the rib sight is shown in FIGS. 10 and 11 of the drawings wherein the rib 13 on the gun barrel 12 is provided in its upper surface With a pair of side-by-

side grooves

29 and 30, each of which extend continuously from the muzzle end of the rib to the rear end portion thereof. Each

groove

29 and 30 has an eye-

attractive area

31 and 32, respectively, in its trough portion. With reference to FIG. 12 it will be understood that the continuous grooves containing eye-attractive areas in the troughs thereof may be increased in number to three

grooves

33, 34 and 35 when such number is deemed advisable to carry out the objectives of my invention.

From the foregoing it is seen that a binocular rib sight has been provided by this invention which fully accomplishes its intended objectives and is well adapted to meet practical conditions of manufacture and usage. It is to be understood that certain changes and modifications may be made within the spirit and scope of the appended claims.

What is claimed is:

1. A binocular sight for the barrels of firearms comprising an elongated rib mounted upon the barrel and extending rearwardly from the muzzle end portion of the barrel, said rib being bisected longitudinally by a vertical plane containing the center axis of the barrel and having a flat upper surface lying in the plane normal to said vertical plane, a longitudinal, laterally restricted and upwardly opening groove formed in the flat surface of the rib and extending from the rear end portion of the rib through the muzzle end thereof, said groove having a trough portion and opposed sides projecting upwardly from the edges of the trough portion, a continuous, elongated and laterally restricted aiming eye-attractive area disposed wholly within the trough portion of the groove, and an upstanding, longitudinally extending fin disposed in and laterally dividing the groove whereby the upstanding sides of the groove and the fin shield the aiming eyeattractive area from the non-aiming eye of the user.

2. A binocular sight for the barrels of firearms as set forth in claim 1 characterized by the fact that the groove becomes progressively shallower as its configuration approaches the rear end portion of the rib.

3. A binocular sight for the barrels of firearms as set forth in claim 1 characterized by the fact that the fins increase in number as the groove approaches the rear end portion of the barrel.

References Cited UNITED STATES PATENTS 1,718,458 6/1929 Hager et a1. 3352 2,207,857 7/1940 Gregory 3347 2,927,375 3/1960 Luebkernan 3347 3,028,674 4/1962 Luebkeman 3347 FOREIGN PATENTS 665,662 6/1939 Germany.

11,838 1915 Great Britain. 1

HARRY N. HAROIAN, Primary Examiner.