US3365801A

US3365801A - Magnetic telescopic mount

Info

Publication number: US3365801A
Application number: US533055A
Authority: US
Inventors: Jr Edward J De Simone
Original assignee: Edward J. De Simone Jr.
Current assignee: EDWARD J DE SIMONE JR
Priority date: 1966-03-09
Filing date: 1966-03-09
Publication date: 1968-01-30
Anticipated expiration: 1985-01-30

Description

Jan. 30, 1968 E. J. DE SIMONE, JR 3,365,801

MAGNETIC TELESCOPIC MOUNT Filed March 9, 1966 2 Shee ts-Shqet 1 INV ENT OR faward flefiimone J1:

BY W

URNEYS United States Patent 3,365,801 MAGNETIC TELESCOPIC MOUNT Edward J. De Simone, Jr., 3902 Avenue S, Brooklyn, N.Y. 11234 Filed Mar. 9, 1966, Ser. No. 533,055 1 Claim. (Cl. 33-50) ABSTRACT OF THE DISCLOSURE A magnetic mount for mounting a telescopic sight on a rifle or the like whereby the rifle sight may be quickly assembled and removed for immediate use of the rifle without the sight, which mount may be replaced conveniently and with the assurance that the rifle sight will reoccupy the same relative position with respect to the barrel of the rifle to which it had previously been set. A permanent magnet of very high field intensity is used as a bonding agent between the rifle and the telescopic sight. Sectional ring like brackets on the mount support the telescopic sight.

This invention relates to telescopic sight mountings and more particularly to magnetic telescopic mountings for rifles, firearms or the like.

In the ordinary mounting constructions, the telescopic sight is rigidly mounted on the barrel of the firearm such as a rifle by means of fastening members, such as screws, clamps or the like. Attachment by means of screws requires much time so that the sighting telescope must remain permanently fixed to the rifle. In case of mounting by means of clamps, a tight attachment of the sighting telescope on the bearings of the rifle is not easily achieved thus causing inaccuracies which impair aiming precision.

Often there is a need for a quick removal of the telescope sight for a closeup shot or other reason. In such fastened mountings, a quick disassembly is diflicult if not impossible.

It is accordingly an important object of the present invention to provide a magnetic type of telescopic sight mounting for rifles whereby the rifle sight may be quickly assembled and removed for immediate use of the rifle without the sight, and furthermore may be replaced conveniently and with the assurance that the rifle sight will occupy the same relative position with respect to the barrel to which it had been previously set. It is proposed to use a permanent magnet of very high field intensity as a bonding magnet between the rifle and the telescopic sight.

Another object of the invention to provide a mount for securing a telescopic sight to a firearm, such as a rifle, which may be permanently adjusted for windage and which relatively inexpensive to manufacture, maintain and repair.

Yet another object of the invention is to provide a mount for a telescopic sight that is of simplified construction and has a minimum of machined parts.

For further comprehension of the invention and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawings forming a material part of this disclosure:

FIG. 1 is a fragmentary side elevational view of a rifle illustrating a mount constructed according to the invention and shown securing 'a conventional telescopic sight to the rifle.

FIG. 2. is an exploded view of the mount.

FIG. 3 is a vertical sectional View taken on the plane of the line 3-3 of FIG. 1.

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FIG. 4 is vertical sectional view taken on the plane of the line 44 of FIG. 3.

FIG. 5 is a perspective view of a modified form of permanent magnet unit.

FIG. 6 is a similar view of another modified form of permanent magnet unit.

Referring now in detail to the various views of the drawings, a conventional rifle is illustrated and is designated generally by the reference numeral 10. The rifle 10 has a conventional stock 12 supporting a conventional barrel 14 having chamber ring 15.

The stock is formed with the usual recess 16 adjacent the rear thereof.

In accordance with the present invention, a mounting for a cylindrical telescopic sight 18 is mounted on the receiver chamber 17 at the middle thereof. This mounting includes magnetizable material such as iron or steel and has an elongated flat plate 20 with downwardly extending curved plate portion 22 secured by screws 24 threaded into threaded sockets in the side of the receiver 15 at the recessed portion 16 of the stock. A short upstanding stud 26 is secured to the top surface of the plate 20 adjacent each end by means of a threaded stem 28 threaded into a threaded hole 30 formed in the plate 20.

A shallow elongated hollow casing 32 is removably seated on the mounting plate 20. The casing has a body 34 with curved upper side walls 36, flat end walls 38 and semicircular in cross section top wall 40. The bottom of the body is open with a ledge 42 extending inwardly of the end walls 38 thereof at the bottom inner surface thereof forming a hollow chamber 45.

Sockets 44 are formed in the outer surfaces of the ledges 42 at the ends of the body to receive the studs 26. The body is guided to proper position on the mounting plate by means of the lugs and sockets.

An elongated bar 46, square in cross-section, of permanent magnetic material is housed in the body 34 of the casing 32 with its top surface secured to the top wall 40 by bonding or other suitable manner. One pole of the bar, the North pole for example is positioned at the left hand side and the South pole at the right hand side, of the housing, as viewed in FIGS. 1 and 2.

A pair of spaced telescopic sight bearing brackets assemblies 50 are detachably carried by the body 34 of the casing 32. The bracket assemblies are of similar construction and each comprises a sectional ring body 52 composed of a lower section 54 and an upper section 56 as viewed in FIG. 2. The sections are removably fixed together by means of aligned perforated ears 58 formed integrally thereon at the ends thereof and screws 60 extending through the aligned perforations. An integral flat plate 62 extends radially and tangentially from the bottom of each of the lower sections 54. The plates 62 are of male dovetail formation for insertion through spaced recesses 64 of female dovetail formation, in the top wall 40 of the body of the casing 32. The bracket assemblies may be driven or press fitted into the recesses 64 by a suitable tool.

In operation, the axial centers of the bracket assemblies 50 are directly in line with the center of the sight of the barrel 14 of the rifle, representing the center of the bore of the rifle, so that the telescopic sight 18 will automatically align with the bore of the rifle in exactly the same way each time it is placed in position in the bracket assemblies.

With the magnetic bar 46 magnetized to saturation, the tractive effort exerted on the mounting plate 20 is suflicient to hold the telescope sight rigidly with its mount in place during usage, but may be willfully removed from the rifle by gripping the telescopic sight 18 and lifting with a strong vertical force the casing 32 off of the studs 26.

In FIGS. 6 and 7 modified forms of magnetic bars 46' and 46", respectively, are shown for use with the mounting plate 20 of FIG. 1. Bar 46' is of the sandwich bonded type and elongated plates 66 of permanent magnetizable material with plate 68 of ceramic material therebetween. Bar 46" comprises an elongated bar body composed of alternating magnetizable iron or steel plates 7%) and ceramic plates 72. The ceramic plates are approximately three times thicker than the iron or steel plates.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise construction herein disclosed and that various changes and modifications may be made within the scope of the invention as defined in the appended claim.

What is claimed is:

1. A telescopic mounting of the kind described comprising an elongated flat plate, a plate depending from said plate formed integrally with one side edge of said fiat plate, one surface of said depending plate being curved, said depending plate having spaced holes therein to receive screws for attachment to a firearm, an elongated magnetic bar removably seated on said flat plate, an elongated hollow casing enclosing said magnetic bar, said casing having flat side walls, a curved top Wall, fiat end walls and being open at the bottom, the bottom edges of the side and end walls being flat for seating on the flat bar, means for removably attaching the casing to the flat plate including upstanding studs on the ends of the flat bar and sockets in the ends of the casing on the bottom thereof coacting with the studs, the top wall of the casing having dovetail recesses in the top surface thereof, a pair of ring-shaped sectional brackets removably mounted in said dovetail recesses for removably supporting a cylindrical telescopic sight, the mounting for the brackets including plates extending laterally and tangentially thereof, said latter plates being of dovetail shape in cross-section.

References Cited UNITED STATES PATENTS 2,782,511 2/1957 Ivy 335O 2,924,881 2/1960 Gee 335O 3,007,248 11/1961 Detrich 335O HARRY N. HAROIAN, Primary Examiner.