US2946126A

US2946126A - Dual range front sight

Info

Publication number: US2946126A
Application number: US723737A
Authority: US
Inventors: Simmons Archie Leon; Walter H Womack
Original assignee: Individual
Current assignee: Individual
Priority date: 1958-03-25
Filing date: 1958-03-25
Publication date: 1960-07-26
Anticipated expiration: 1977-07-26

Description

United States Patent DUAL RANGE FRONT srorrr Archie Leon Simmons, Kilgore, Tcx., and Walter H. Womack, Shreveport, La.; said Simmons asslgnor to said Womack Filed Mar. 25, 1958, Ser. No. 723,737

3 Claims. (CI. 33-58) This invention relates to adjustable sights such as used on small bore match rifles, and in particular a front sight mounted on and extended from the muzzle end of a rifle barrel wherein the distance between the sight at the inner end of the barrel and stock is constant thereby increasing the accuracy in aiming the gun at a target.

The purpose of this invention is to provide means for adjusting the angle of a rifle barrel to compensate for different distances without changing the distance between the axis of the barrel or line of sight and the check of a person firing the rifle.

Conventional adjustable sights are positioned on the rear of a rifle barrel and in elevating and lowering the sight at this point the distance between the cheek piece of the stock and the line of sight is changed making it necessary for the person firing the rifle to adjust the position of his cheek upon the stock. Changing his face in relation to the conventional cheekpiece of the rifle is difiicult resulting in inaccuracy in firing. With this thought in mind this invention contemplates an adjustable front sight whereby the distance of the line of sight from the cheekpiece of the stock of the firearm remains constant whereby the firearm is held with greater comfort and greater accuracy is obtained in firing.

The object of this invention is, therefore, to provide means for adjusting the sight of a firearm at the front or muzzle end of the barrel instead of at the rear end thereof.

Another object of the invention is to provide an adjustable front sight for a firearm in which the device is designed to be used on firearms now in use without changing parts thereof.

Another important object of the invention is to provide means for increasing the distance between the sights of a rifle in order to increase the accuracy of sighting.

A further objectof the invention is to provide an improved front sight for small bore match rifles to increase accuracy in sighting and also to improve comfort in firing in which the device is of a simple and economical construction.

With these and other objects and advantages in view the invention embodies a tubular sight, having mounting lugs on the rear end thereof for mounting the sight on the muzzle end of a rifle and a disc having an opening eccentrically positioned therein carried by a sleeve rotatably mounted in the end of the tube and having a knurled end to facilitate turning by hand to adjust the position of the opening.

Other features and advantages of the invention will appear from the following description taken in connection with the drawing, wherein:

Figure 1 is a side elevational view illustrating the position of the improved compensating front sight on the barrel of a firearm.

Figure 2 is a longitudinal section through the extended end of the front sight with part of the outer casing or tube broken away showing a disc holding cylinder in elevation, the parts being shown on an enlarged scale.

2,946,126 Patented July 26., 1960 Figure 3 is a cross section through the front sight taken on line 33 of Figure 2, showing a squirrel on the disc of the sight and showing the sight opening in the upper position with the thick side of the cylinder or sleeve extended downwardly.

Figure 4 is a longitudinal section through the front sight showing the opening through the disc in the lower position and in which the thick side of the sleeve in which the disc is mounted is positioned on the upper surface thereof.

Figure 5 is a cross section taken on line 55 of Figure 4 also showing an animal depicted on the disc of the sight and in which the animal is located at a greater distance than that of the animal shown in Figure 3.

Figure 6 is a plan view of the front sight assembly taken on line 6-6 of Figure 2 showing the openings or windows in the tube through which the yards, such as 50 and are displayed designating the position of the opening through the disc, such as being set for 50 yards.

Figure 7 is a plan view similar to that shown in Figure 6, taken on line 77 of Figure 4 showing the disc set for 100 yards, and with the disc opening in the position shown in Figure 5.

Figure 8 is a diagrammatic view showing a line of sight from an eye through the opening in the disc with the opening in the disc in the upper position and from the opening of the disc to a target. In this position the axis of the barrel of the firearm is inclined upwardly whereby the projectile follows an upwardly disposed curve such as would result in firing at 100 yards.

Figure 9 is a view similar to that shown in Figure 8 illustrating the relative positions of the parts with the front sight set for firing at 50 yards wherein the opening through the disc of the front sight is positioned above the center.

Referring now to the drawing wherein like reference characters denote corresponding parts the improved front sight for small bore match rifles of this invention includes an elongated tube 10 having spaced mounting lugs 11 and 12 on the rear portion thereof, a sleeve 13 supported in eccentric mounting rings 14 and 15, a disc 16 having a sight opening 17 therein secured against a sealing ring 18 by a bushing 19 threaded in the outer end of the eccentric ring 14 and having a collar 20 with a knurled outer surface on the extended end, a gripping ring 21 having a knurled outer surface on the extended end of the sleeve 13, and a lock nut 22 threaded on the outer surface of the tube 10 and having an inwardly extended annular flange 23 positioned over the collar 24 at the inner end of the gripping ring 21 and whereby the unit including the sleeve 13, eccentric rings 14 and 15, disc 16 and bushing 19 are secured in the forward end of the tube 10.

The upper surface of the tube 10 is provided with an opening or window 25 having a pointer 26 therein whereby indicia such as the numerals 50 and 100 may be displayed designating the position of the sleeve so that a person using the rifle may readily ascertain the yardage to which the opening 17 is set, such as 50 yards with the opening in the position shown in Figure 3, or 100 yards with the opening in the position shown in Figure 5. The opening may be adjusted to any suitable number of yards between 50 and 100 yards, as may be desired.

The lugs 11 and 12 are provided with set screws 27 and 28 by which the front sight may be secured to mounting lugs 29 and 30 on the barrel 31 extended from the stock 32 of the rifle and, as shown in Figures 3 and 5 the lugs 11 and 12 are provided with dove-tail slots 33 that slide over similarly shaped tongues on the mounting ele ments 29 and 30. The set screws 27 and 28 are provided with lock nuts 34 having knurled outer surfaces for securing the set screws in position of locking or clamping the front sight on the tongues of the mounting elements.

As illustrated in Figures 1 and 7 the distance from the cheekpiece or surface of the stock of the rifle to the line of sight 35 is constant and with the opening 17 of the disc 16 positioned above the center, as illustrated in Figure 3, the muzzle of the barrel will be inclined downwardly whereas with the opening below the center, as shown in Figure the axis of the barrel will be inclined upwardly.

The front sight assembly including the sleeve 13, eccentric collars 14 and 15, disc 16 and bushing 19 is inserted in the end of the tube and secured in position thereof by the lock nut 22, the flange 23 of which locks the collar 24 against the end of the tube 10 and the parts are retained in adjusted positions by the lock nut. To adjust the position of the opening 17 of the disc the lock nut 22 is rotated in a counter clockwise direction loosening the sleeve 13 whereby the sleeve is turned to adjust the position of the opening 17 and with the opening in the position desired the lock nut 22 is turned in a clockwise direction to lock the parts in the adjusted positions.

It will be understood that modifications, within the scope of the appended claims, may be made in the design and arrangement of the parts without departing from the spirit of the invention.

What is claimed is:

1. A front sight for a firearm having a barrel extended from a stock comprising spaced tongues positioned on the upper surface of the extended end of the barrel, an elongated tube having spaced lugs positioned to correspond with the tongues on the upper surface of the barrel, means for clamping the lugs on said tongues, a sleeve mounted by eccentric rings in the extended end of the tube, a disc having a sight opening therein positioned in the sleeve in abutting relation with one of said rings, a bushing having a collar threaded on said one ring in abutting relation to said disc, a gripping ring mounted on said sleeve, and a lock nut threaded on the tube and positioned in abutting relation to said gripping ring to lock the sleeve in adjusted positions in the tube.

2. In a front sight for a firearm, the combination which .4 comprises a barrel extended from the stock, spaced tongues positioned on the upper surface of the extended end of the barrel, a tube having mounting lugs on the under surface and positioned to coact with the tongues of the barrel for supporting the tube in the position extended beyond the end of the barrel, a sleeve having eccentric rings on ends thereof positioned in the extended end of the tube, a disc having an opening therein secured in the sleeve, and means for locking the sleeve in adjusted positions in the tube, said locking means comprising a gripping ring having a knurled outer surface and a collar on one end thereof and a lock nut having a knurled outer surface and an annular flange thereon that is positioned over the collar on said gripping ring.

3. In a front sight for a firearm, the combination which comprises a barrel having spaced tongues extended upwardly from the muzzle portion thereof, a tube having lugs fitted on the tongues of the barrel, set screws in the lugs for clamping the tube to the tongues of the barrel, a sleeve having eccentric rings on ends thereof positioned in the extended end of the tube, a disc having an opening therethrough positioned in the sleeve, a bushing threaded in the sleeve for securing the disc therein, a gripping ring having a collar thereon threaded on the outer surface of the tube, and a lock nut having an annular flange thereon that is threaded on the collar on the gripping ring on the outer surface of the tube for locking the sleeve in adjusted positions therein, the tube having a window in the upper surface for displaying indicia indicating the position of the opening in the disc of the sleeve.

References Cited in the file of this patent UNITED STATES PATENTS 870,272 Burton Nov. 5, 1907 1,009,282 Cobb Nov. 21, 1911 2,125,932 Lennon Aug. 9, 1938 2,424,011 De Gramont July 15, 1947 2,456,214 Poe Dec. 14, 1948 2,486,940 Garber et al. Nov. 1, 1949 2,913,826 Petty Nov. 24, 1959