US2444038A - Combination rear sight and ejector for firearms - Google Patents

Description

June 29, 1948.

J. c. GARAND COMBINATION REAR SIGHT AND EJECTOR FOR FIREARMS Filed March 5, 1947 dbl-LIL E- Guruncf Patented June 29, 1948 UNHTED STTS GFFECE CDMBINATIGN REAR SIGHT AND EJECTOR FOR FIREARMS (Granted under the act of March 3, 1883, as amended April 30, 1928; 370 O. G. 757) 4 Claims.

The invention described herein may be manu-factured and used by or for the Government for governmental purposes, without the payment to me of any royalty thereon.

This invention relates to a combination rear sight and ejector for a firearm.

This application is a continuation-impart of my application Serial No. 618,805, filed September 26, 1945, for Firearms.

It is an object of this invention to provide a rear sight for a firearm having a plurality of sight blades whereby the sight may be quickly adjusted for any range.

Another object of this invention is to provide a rear sight for a firearm which can be selec tively adjusted for a plurality of ranges and which is yi-eldingly held in each of such positions by the ejector of the firearm.

T-he specific nature of the invention as well as other objects and advantages thereof will clearly appear from a description of a preferred embodiment as shown in the accompanying drawings in which:

Fig. l is a partial side elevational view of a firearm with the receiver shown partly broken away to illustrate the ejector engaging the base of a cartridge and of the rear sight.

Fig. 2 is an enlarged detail top view of the rear sight.

Fig. 3 is an enlarged detail front elevational view of the rear sight.

Fig. 4 is a partial cross-sectional view taken along the line 4-4 of Fig. 3 showing the sight positioning slots in the pin of the sighting element.

This invention essentially comprises a rear sight having a sight element rotatably mounted in a sight base, such sighting element having a plurality of sight apertures adapted for use at different ranges. The sighting element is selectively secured in any one of a plurality of positions by the ejector of the firearm.

The rear sight l5 shown in Fig. 1 comprises a substantially rectangular base it and a sighting element ll. On top of such base there is integrally formed a transverse arcuately shaped raised portion IS. A transverse hole it! is provided in raised portion [8 in which is inserted sighting member I! in a manner as will be later described. The bottom of base !6 is arcuately shaped as shown at in order that such base may be placed on top of a tubular receiver 2! of firearm 22 shown in Fig. 1.

Base I6 is secured to receiver 2! by a screw 23. A vertically disposed hole 24 in sight base l6 permits such screw to be inserted therethrough. A longitudinal slot 25 is provided on the right side of base it as shown in Fig. 3 to accommodate an ejector 2. for a purpose to be presently described.

Sighting element ll comprises an L-shaped member 2? and an integral pin 82 disposed at right angles to sighting element ll. Each arm of such L-shaped member terminates in circular end portions 253 and 29 and apertures 3|] and 3! are respectively provided therein. Aperture 3| is disposed at a greater distance from the axis of pin 32 than aperture in order to adapt the sight for z are than one range of sighting. Adjacent the end of pin 32, shallow slots 33 and 34 are milled therein and are disposed parallel to the respective arms having ends 28 and 29. An annular groove M is provided on pin 32 as shown in Figs. 2 and 3. Pin 32 of sighting element I7 is inserted in hole IQ of base l6 and sighting element H is rotatably secured thereto by screw which engages annular groove 44. When pin 32 is inserted in hole l9. sighting element I1 is then disposed to one side of the axis of the firearm thus producing an offset sighting means. The front sight (not shown) obviously must be ofiset correspondingly.

Ejector 26 is a spring-like member constructed of wire having one end 35 bent at substantially 99 to the body portion 3'! thereof while the other end 36 is bent downwardly and outwardly as shown in Fig. 2. The body portion 31 is somewhat arcuately shaped as shown in Fig. 2, to provide a spring action.

A longitudinal groove 38 is provided on top of receiver 21 to receive ejector 26. Groove 38 is preferably deeper at the forward end of receiver 2!, as shown at 39, to permit end 36 of ejector 26 to engage a longitudinal groove 40 provided on a firearm bolt 4i slidably contained within receiver 2!. In this manner the extreme end of ejector 26 can contact the base of an empty cartridge case 42 to eject such case in a manner to be later described. End 35 of ejector 26 is insorted in a radially disposed hole 43 in receiver 2! thereby securing such ejector to the receiver.

When ejector 26 is assembled to the firearm. as shown in Fig. 1, such ejector lies within slot 25 of base it and when in such slot the body portion 3'! of ejector 26 engages one of the slots 33 or 3 depending upon which aperture is raised upwardly at the moment. For the above reason and due to the arcuate shape of body portion 31 of ejector 26, which produces a spring-like action in ejector 26, a force is exerted against pin 32 thereby yieldingly securing sighting element l! in one of two positions.

For ranges up to approximately 100 yards, aperture 30 should be raised to the position shown in Fig. 1. Such is accomplished by rotating circular end portion 29, of the L-shaped member in a counterclockwise direction. The other sighting aperture is raised by merely forcing end portion 23 in a clockwise direction which will permit sighting at ranges up to approximately 300 yards.

When bolt 4! is retracted, either manually or by automatic operation of the firearm, the base of cartridge case 42 held against the face of bolt 4| strikes the end 36 of ejector 2B"whereupon the cartridge case 42 is ejected'from the gun.

From the foregoing description it is readily apparent to those skilled in the art that there is here provided a simple rear sight easily'adjustable for various elevationah'requirements-imeluding an ejector to positively eject empty cases from the firearm which is also utilized to yieldingly secure the rear sight in a plurality of. positions.

I claim:

1. In a firearm having a receiver and a bolt reciprocatingtherein the improvement comprising, an adjustable. sight secured to the receiver, said sight being constructedand arranged to be selectively positionedin any one of a plurality of sighting positions, and a wire-like spring mounted in the receiver, said spring having a first portion engaging said-adj ustable sight to resiliently secure said sight in any selected position, said spring also having a second portion constructed and arranged to extendwithin. the receiver into the path of the bolt toser-ve asa cartridge ejector.

2. In a firearm-havinga receiver and a.bolt reciprocating therein the improvement comprising, a rear sight base secured to the receiver, said base having a hole therethrough, a pivot pin pivotallymounted in said hole, a plurality of angularly spaced sightingarm. members rigidly secured tosaidrpivot pin; said pivot pin having fiatsarranged in angularlyv spaced relation to said sightingarm members, and awire-like spring mounted adjacent the receiver, saidspring having a first portion resiliently engaging one of said flats on the pivot pin whereby said-sighting arm members are resiliently maintained in a selected angular position, said spring also having a second portion constructed and, arranged: to extend within the receiver into the path of the bolt to serve as a cartridge ejector.

3. A firearm comprising, a receiver, a bolt reciprocating therein, a rear sight base secured to said receiver, said base having a hole therethrough, a pivot pin pivotally mounted in said hole, a plurality of angularly spaced sighting arm members rigidly secured to said'pivot pin, said pivot pin having flats arranged in angularly spaced relation to said sighting arm members, and'ia' wire-like spring mounted adjacent said receiver, said spring having a first portion resilientlyengaging one of said flats on the pivot pin wherebysaid sighting arm members are resiliently maintained in a selected angular position, said spring also having a second portion constructed and arranged to extend within said 'eceiver into the path of said bolt to serve as a cartridge ejector, said bolt having a longitudinal recess on the surface thereof to accommodate said second portion of said spring.

4. In a firearm having a receiver, a bolt reciprocating therein, and a rear sight assembly secured to the receiver, said assembly comprising, a base, said base having a transverse hole therethrough, a pivot pin pivotally mounted in said hole,.a plurality of angularly spaced sighting arm members rigidly secured to said pivot pin, said pivot pin having flats arrangedin angularly spaced relation to said sighting arm members, said base having a longitudinal slot in its surface adjacent the receiver, said slot intersecting said pin hole in alignment with said flats, the receiver having a magazine well in longitudinal alignment with the rear sight assembly, the receiver having an external longitudinal groove, said groove extending under therrear sight base assembly adjacent said slot and opening into said magazine well, and a wire-like spring located in said groove, said'spring having a first portion extending into said slot in the rear sight base assembly and resiliently engaging one of said fiats onsaid pivot pin whereby said sighting arm members are resiliently maintained in a selected'an gular position, said spring also having a secondportion constructed and arranged to extend withinthe receiver into the path of the bolt to serve as a cartridge ejector, the bolt having a longitudinal recess on the surface thereof to accommodatesaid second portion of said-spring.

JOHN C. GARAND.

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