US439271A

US439271A - Gun-sight

Info

Publication number: US439271A
Authority: US
Publication date: 1890-10-28
Anticipated expiration: 1907-10-28

Description

(No Model.)

B. J. OUSHING.

GUN SIGHT.

No. 439,271. Patented Oct. 28, 1890.

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UNITED STATES PATENT OFFICE.

RUEL J. OUSHING, or BANGOR, MAINE.

GUN-SIGHT.

SPECIFICATION forming part of Letters Patent No. 439,271, dated October 28, 1890.

Application filed February 10, 1890. Serial No. 339,826. (No model.)

of the invention, which will enable others skilled in the art to which it appertains to make and usethe same.

My invention relates to a new and improved front sight for firearms; and it consists of an improved sight constructed with'a base adapted to receive interchangeable globe or open sights therein, as will hereinafter be fully set forth and described.

Throughout the description reference is made to the accompanying drawings, in which- Figure 1 represents a perspective view of the base of my invention. Fig. 2 isa similar view of my improved open sight to be used in said base. Fig. 3 is a front elevation of Fig. 2. Fig. 4 is an isometric View of the clamp used with my invention. Fig. 5 is a similar View of an interchangeableglobe-sight using changeable disks. Fig. 6 shows a perspective elevation of an interchangeable disk used in combination with Fig.5. spective View of part of my invention used as a fixed open sight, and showing its attachment to a rifle-barrel. Fig. 8 is an isometric view of my invention complete.

Similar letters of reference refer to corresponding parts throughout the different figures.

The object of my invention is to producea new and improved sight that can be more readily and quickly distinguished upon objects, and one so constructed as to allow interchange from globe to open and other styles without removing the base from the barrel.

Referring to the drawings, A represents the base of my improved sight, which consists of a rectangular piece of metal having taper grooves e cut longitudinally in its two opposite edges in such manner as to fit the usual slot in a rifle-barrel, and provided with an aperture or chamber B in the center of its up per surface with raised ears 0, projecting at the four corners of this chamber. The ears 0 are cast upon the base A and project above Fig. 7 is a per l the surface sufficiently to be provided with small grooves e, constructed to admit a clamp to secure interchangeable sights therein. The space between the two ears upon the same side is concaved. or hollowed out to correspond with the exterior surface of a globe-sight, which when used is seated therein and extends transversely across the said base.

Within the chamber B is fitted the body J of my improved sight. The ends of this body contain grooves e, which correspond and coincide with similar grooves e",cut in the ears of the base A in such manner that a clamp constructed for the purpose, and hereinafter described, inserted in these grooves will rigidly hold this body within the base.

From the ends of the upper surface of the body J of my improved sight are sprung and attached the concaved sides D, which are formed of pieces of sheet metal curved longitudinally to a quarter-circle and confined at their edges transversely across this body. These sides D extend upward from their confinement with the body J, curved toward each other, and meet along their upper edge, where they are soldered together and form in elevation a triangle with concaved sides, the base being'straight as is the body J. This construction forms an aperture extending through the center of the sight in. the line of vision. The front or eye end of these sides D should be slightly thicker than the object end, so that the outer surface will taper toward the latter end, and the aperture o,between these sides, tapers in inverse manner-that is, toward the eye end. By this principle parallax is destroyed, and multiple and colored lines are not discovered when glancing along the sight.

At the apex or along the meeting edges of the curved sides D is soldered a solid bead Z, formed of aluminum, and also tapered from the eye toward the object end and extending the full length of the sight. This bead Z can be constructed in whole or in part of its length of aluminum, the object of the taper being the same, as hereinbefore mentioned, of the sides D, and the advantages of aluminum over any other material is that it presents a white object to the eye, it will not tarnish by the action of different atmospheres, never changes color, is strong, and discernible in dim lights. The rest of the material of which the sight is composed should be of a color contrasting with the bead l. in order that the latter may be more readily distinguished. \Vith the aperture 0 directly under the bead lthe sight is more readily brought in line with an object without covering up a large portion of the latter, and it is therefore better adapted for fine shooting than the common solid sight. The concaved sides D of my sight project beyond the body J a distance equal to the thickness of the ears 0 upon the base A, and these four corners are therefore notched to admit the ears in such manner that when the sight is firmly seated within the chamber 13 the sides D bridge the space between the ears and brace against them when lateral or downward strain is imposed upon the top, thus making a stronger and stiffer sight that the older styles.

This sight is made interchangeable in and secured to the base A by means of a U shaped clamp F, constructed with projecting arms u, beveled at their inner edges to correspond with and fit grooves e and c in the ears 0 and body J, into which the clamp is inserted when lockin g the two parts together, as shown in Fig. 8 ot the drawings. The clamp F is constructed with small extensions him its two corners, the edges of which are milled or slightly roughened to prevent the fingers from slipping when withdrawing the same.

It can now be easily understood that globesights can be constructed with similar bodies J attached thereto, which can be interchangeably used with the open sight above described. VVith a slot 15 cut transversely through the globe G, (shown in Fig. 5 of the drawings,) interchangeable disks E (shown in Fig. 6) can be used and locked therein by means of the fastening-clamp F, passing through notches e filed in the lower corners of the said disks.

The advantages of my interchangeable tering the gun while changing sights, as in the old way.

My improved open sight may, if desired, be used as a fixed sight without change by means of taper grooves e filed in the body J, which grooves allow it to be driven into the usual slot in the rifle-barrel R in the old way, as shown in Fig. 7 of the drawings.

My device can also be used upon wind-gage bases, allowing the interchange of sights, as hereinbefore described.

Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States, is

1. An improved front sight consisting of an aluminum bead tapered from its eye end toward its object end and supported by thin sides of contrasting color sprung from the base or barrel in such manner that an apertu re appears through the sight directly under the bead, for the purpose described, and substantially as set forth.

2. A combination sight consisting of a base adapted to be confined to a rifle-barrel or windgage base, having a chamber therein with small ears projecting from the sides of this chamber, for the purpose described, in combination with interchangeable globe or open sights constructed with a body fitting said chamber and adapted to be secured therein by a key or clamp sliding in grooves cut in said ears and the interchangeable sight-bodies, substantially inthe manner shown, and for the purpose described.

RUEL J. CUSIIING.

Witnesses:

JAMES H. KENNEDY, .ToHN II. BAcoN.