US358747A - Sight for fire-arms - Google Patents

Description

(No Model.)

I. J. ORR & P. 0.. HOLMAN.

SIGHT FOR FIRE ARMS.

' No. 358.747. Patented Mn. 1, 188.7.

N FUERS. Phum-Lilhompher, warn-mm n. r.

' UNITED ST TES PATENT OFFIcE.

FRANCIS J. ORR AND FRANK O. HOLMAN, OF \VELLINGTON, KANSAS.

SIGHT FOR=FlRE-ARMS.

SPECIFICATION forming part of Letters Patent No. 358,747, dated March 1, 1887.

Application filed May 37, 1886. Renewed February 9, 1887. Serial No. 226,994. (No model.)

To aZZ whom it may concern.-

Be it known that we, FRANCIS J. ORR and FRANK (J. HOLMAN, citizens of the United States, residing at Wellington, in the county of Sumner and State of Kansas, have invented certain new and useful Improvements in Sights for Fire-Arms; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates to adjustable sights for fire-arms; and it consists in the construction and arrangement of the parts, which will be more fully hereinafter described, and pointed out in the'claims.

The principal features of our invention comprise a sight disk or plate supported by a pair of parallel bars so hinged that they willmaintain the sight-plate automatically at the proper angle to the barrel, no matter at what elevation they may be placed, and which will yield to any shock tending to force the entire structure forward and be automatically returned to the elevation at which they may have been set. The construction of our sight disk or plate itself also forms one of the essential features of our invention.

Our improved sight is fully illustrated in the accompanying drawings, wherein like letters of reference indicate similar parts in the several views, and in which- Figure-1 is'a perspective view of our gunsight in position upon a gun-barrel or fire-arm. Fig. 2 is a rear elevation. Fig. 3 is a front elevation. nection with the grip or tang mounted upon a gun or fire-arm.

Aindicates the base-plate of the sighl,which is preferably made in two parts or pieces, a to, having plane faces, so that when secured together by the screw 1), which enters the gun or fire-arm, they form practicallya solid baseplate. The advantage of this construction is, that the lower plate or tang-piece, a, may be supplied in different sizes and shapes to fit different styles of guns or fire-arms, while the plate or piece a,which supports the sight,will always fit the said plate a. Formed with the plate a is a standard, a", to which are pivoted Fig. 4 is a side elevation in conthe parallel bars B B by independent pivotpins b b. I

The sight-plate G is pivoted to the upper end ofthe bar B by means of a pin, 0. It is a plain disk or plate of substantially circular form, in the center of which are grouped a combination of sight-holes, c, which we have shown as four in number. This combined arran gement of the said aperturesgives a greater scope for the vision, and also affords a better light than a single opening. r a

The upper end of the parallel bar B is pivoted by pin 0 to links D, which in turniare pivoted upon the pin a, and formsa stop against whichthe front face of the sight disk or plate 0 bears, a flat spring, 0?, holding said disk or plate 0 in position for sighting, but allowing it to yield slightly in caseof a blow or concussion from any cause against the front side of the sight-disk or eye-plate.

For the purpose of transportation or for incasement by a covering, the sight-plate can be turned down and placed in a plane with the lower bar, B, or rest on the grip or barrel of the gun or fire-arm to which it is attached.

By the described manner of pivoting the parallel-motion bars independently at both ends the sight-apertures in the plate or disk, when the said plate is raised, are caused to inscribe an increasing circle, 0, of vision, as shown in dotted lines in Fig.1, and the plate or disk itself is caused to remain constantly at right angles to the barrel of the gun or fire arm, as will be readily understood.

The sight has two different means of adj ustment, which will now be described in detail.

On the upper bar, B, is formed a screwthread, I), on which turns a milled nut, If. Stops b b are secured to the lower bar, B, the former limiting the movement of the nut I)", and the latter forming a shoulder against which bears the end of the pressure-spring b, which spring isthus inolosed between said stop I) and the nut b". The adjustment of the ICO free to yield forward, the parallel motion com-' pressing the spring, which will return them to position after a recoil or any other shock or cause that may affect them. This construction avoids any liability of injury to the eye or the sight-plate from the recoil of the gun or fire-arm or from any other shocks it may receive.

The degree of elevation is indicated by a gage or scale, (I, on the bar B, with which registers a slide, D. This slide is pivoted to a prop, D hinged to the base-plate a, and moves over the gage or scale as the adjustingnut 12 is turned. The outward movement of the slide, as in closing the sight, is limited by projections formed with an adjustable forked spring, D secured to the bar B, and when such slide bears against the projections of the said spring D the sight is ordinarily in elevation for the first range.

A friction-slide, D, closing the spring D follows the slide D upon the bar B, and acts as a stop for it at any point on the scale when adjusted for higher elevations, and having rounded shoulders d on its upper end,adapted to compress the ends of the spring D and thus permit the slide D to move far enough to close the sight down flat upon the gun or firearm. This slide D is also provided with milled edges, so that it can be more readily operated 011 the bar B. This slide D incloses a flat spring, d which bears against the lower side of the bar B. By this means the said slide is held in any position of adjustment that may be desired. The slides and spring thus act not only as an auxiliary adjustment, but as a support and brace for the parallel bars in securing the different elevations, and allowing the sight to move up or down in case of accident.

WVhatever may be the position of the parts the sight is free to'yield forward against the pressure of the coiled spring, and also backward when the milled nut bis not used, thus, as before stated, removing much of the liability of injury from shocks when the sight is raised.

It is obvious that many minor changes in the construction and arrangement of the parts could be made and substituted for those shown and described without in the least departing from the nature and principle of our inven tion.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. An adjustable sight for guns or fire-arms, consisting of a sight or eye-plate having a combined group of sight-apertures, whereby morelight and a greater scope to the vision are given, substantially as described.

2. In a sight for fire-arms, the combination, with the bars supporting the sight-disk, of a base-plate composed of two pieces removably secured together, the lower or tang piece being concaved on the under side, so that the plate may be secured to different forms of guns or fire-arms without any change in the upper piece, which supports the sight-disk, substantially as described.

3. In a sight for fire-arms, the combination of a pair of hinged parallel bars, a sight-disk hinged thereto, a pressure-spring, and its adjusting-nut, substantially as described.

4.. The combination, with the base-plate, of the pivoted parallel bars, the sight-disk supportably pivoted to the lower bar and operatively pivoted to the upper bar, the adjusting-nut, and pressure or recoil spring, and the stops 6 b", substantially as described.

5. In a sight for fire-arms, the combination of a sight-disk adjustably secured to two parallel supporting-bars, a prop hinged to the base-plate and toa slide on the lower bar, a movable slide on said bar, and an adjustable stop, whereby the sight, when moved forward by pressure, will automatically return to and be held at any predetermined elevation, substantially as described.

6. In a sight for firearms, the combination of a hinged 'sightdisk, parallel supportingarms hinged to the base-plate, a pressurespring mounted on the upper bar, and an adjustable stop, whereby the sight-disk may be maintained at a right angle to the barrel of the fire-arm at any elevation of the supportingbars, substantially as described.

7. In a sight for fire-arms, the combination, with the pivoted bar carrying the sight-disk and having agage on oneside, ofa prop hinged to the base-plate and to a slide embracing and moving on said bar, a stop, and a forked spring having side projections on each arm, by which said stop may be held so as to secure the sightdisk at its lowest elevation, substantially as described.

8. The combination, with the base-plate, of the parallel bars B B, the hinged sight-plate, the adj usting-nut and pressure-spring on the bar B, and the prop D, the slide D, and the friction-stop D on the bar B, substantially as described.

9. The combination, with the grip or tang piece a, of the base-piece a, parallel supporting-bars pivoted in cars formed on said basepiece a, and the hinged sight or disk having combined sighting -apertures 0, whereby in securing the elevations for diiierent ranges the radius of an increasing circle is inscribed by said sight-apertures, substantially as described.

In testimony whereof we ailix our signatures in presence of two witnesses.

FRANCIS J. ORR. FRANK C. HOLMAN. Witnesses:

H. J. KELTNER, T. J. \VILLIAMSON.

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