US2187054A - Telescope mounting for guns - Google Patents

Description

TELESCOPE MOUNTING FOR GUNS Filed Feb. 8, 1938 Patented Jan. 16, 1940 TES UNITED PATENT mm 2 Claims.

This invention relates to a means for mounting a telescopic gun sight upon a gun and has for its principal object the provision of a mounting which can be quickly and easily applied to the gun; which will enable the telescope to be quickly removed and rapidly and accurately replaced; which will support the telescope .with absolute rigidity so as not to be afiected by the recoil of the gun; and which will have an accurate windage control.

Other objects and advantages reside in the detail construction of the invention, which is designed for simplicity, economy, and efficiency. These will become more apparent from the following description.

In the following detailed description of the invention reference is had to the accompanying drawing which forms a part hereof. Like numerals refer to like parts in all views of the drawing and throughout the description.

In the drawing:

Fig. l is a side elevation of a typical rifle with the mounting and telescope in place thereon.

Fig. 2 is a side elevation of the mounting with 26 the position of the telescope indicated thereon in broken line.

Fig. 3 is a bottom view, looking upwardly, of the base member of the mounting.

Fig. 4 is a top view of the forward extremity of the base member.

Fig. 5 is a cross section taken on the line 5-5, Fig. 2.

Fig. 6 is a detail, longitudinal section through the rear extremity of the base member taken on the line 6-6, Fig. 4.

Fig. 7 is a side elevation of the forward telescope clamp.

Fig. 8 is a section therethrough taken on the line 8-8, Fig. 7.

Fig. 9 is a cross section through the base member taken on the line 99, Fig. 6.

In the drawing a typical rifle is designated in the entirety by the numeral III, the receiver thereof by the numeral H, and a typical telescopic gun sight is illustrated at l2.

The invention employs a base member l3 designed to be secured upon the top of the receiver II by means of suitable attachment screws for which screw openings 14 are provided in the base member. One side edge of the base member I3 is cut back as indicated at l5 and the remainder of the base member at this point is beveled as indicated at l6 to allow free passage for the ejected shells from the receiver.

The rear portion of the base member is formed with a concave boss ll which fits into a coacting depression in the receiver l I to maintain the rear portion of the base member in alignment. The bottom forward portion of the base member is formed with a concavity I8 which fits snugly over 5 the forward portion of the receiver H.

A transverse, elongated opening l9 opens through the upper face of the forward portion of the base member. This opening communicates within the base member with a round opening 20 10 formed in the bottom of the base member. The round opening joins the elongated opening to form two inclined convex shoulders 2|. The inclined shoulders 2| do not extend completely to the bottom of the base member but terminate 15 slightly above the bottom to form a narrow circular guide edge about the opening 20.

The rear portion of the base member is drilled and threaded entirely through its width, as shown at 22, to receive a pair of oppositely fac- 20 ing headed screws 23. These screws are formed with a convex undersurface on their heads so as to provide a relatively sharp wedge-like edge around the under face of the head. The screws are so positioned that their heads project above 25 the upper surface of the base member l3.

The telescope is held by means of a front clamping sleeve 24 and arear clamping sleeve 25 clamped about the telescope by means of suitable clamping screws 29. Both clamping sleeves are 80 formed with fiat plane bottoms which rest accurately upon the fiat plane upper surface of the base member.

The forward sleeve 24 is provided with a circular, conical tenon 26, the sides of which are 85 flattened, as shown at 21, so that the bottom outline of the tenon is identical to the shape of the elongated opening IS. The tenon is placed in the opening by holding the telescope transversely of the elongated opening I9. The tenon is placed in the opening by holding the telescope transversely of the rifle barrel ID, as indicated in Fig. 4 with the tenon in alignment with the barre]. The telescope is then swung to a position of alignment with the barrel which turns the tenon Q into position beneath the beveled shoulders, as shown in Fig. 3. As the tenon is turned beneath the shoulders, it contacts therewith to draw the member 24 snugly down upon the base l3 so that it cannot vibrate or move.

The rear clamping sleeve 25 is formed with semi-circular wedge grooves 21 at each of its sides and when in place on the base, these grooves receive the wedge edges of the screws 23 so that both lateral and vertical movement of the member 28 is prevented.

It can be readily seen that the wlndage of the telescope can be adjusted by simply loosening one 01 the screws 23 and tightening the other. It can also be seen that by loosening one of these screws, the telescope can be swung to the position of Fig. 2 and lifted from the base member. when in place the telescope will be rigidly held against movement in any direction.

While a specific form of the improvement has been described and illustrated herein, it is desired to be understood that the same may be varied, within the scope oi! the appended claims, without departing from the spirit of the invention.

Having thus described the invention, what is claimed and desired secured by Letters Patent i I 1. A telescope mounting for guns comprising:

an elongated base member afllxed to the receiver of a gun; a front telescope clamp pivotally mounted on the forward extremity of said base member to swing in a horizontal arc; a rear telescope clamp having a flat bottom resting on the rear portion of said base member; and a screw threaded into each sideof said base member, said screws engaging opposite sides of the said rear telescope clamp, the heads of said screws being recessed so as to provide a sharpened peripheral edge axially thereof, said clamp being arcuately recessed for the reception of said edge.

2. In a telescope mounting for guns oi. the type having a telescope engaging member and a base member supporting said engaging member, means for fixedly securing said engaging member on said base member comprising: a headed screw threaded into said base member from each side thereof, the heads of said screws being recessed to provide a sharpened, circular peripheral edge directed axially thereof, said engaging member being arcuately recessed for the reception of said edge.

JOHN H. REDFIELD.

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