US2556903A - Telescope sight mount - Google Patents

Description

June 12, 1951 k. E. CLARK TELESCOPE SIGHT MOUNT Filed Nov. 19, 1948 INVENTOR- KENNE TH E K 04 ARK VMM ATro/e/vr Patented June 12, 1951 UNITED STATES T *r relics newscast-i 52; MOUNT eppli'tautnfiovemiier 19,1 9'48; seminaa 2"Claims'.

This invention relates" to firearms} primarily those 'ofrifle t ne, andmore articularly to means and-facilities for the mounting of a te1escop'e sight o'n'and in operating relationwith'thefraines o'rrece'ivers of such'firearms} and has as'an object to provide novel and im roved such mounting means characterized bysiin'blii'ty ans-advantage.

A further object of the invention is to provide improved IYiGaIIS'EmIHO'YE'bIE 1T0 mil'lll'it a' telescope sight on and closely adjacent the bore line'of a rifle;

A further object of '"tlie' invention "to' pro'vide an improved'constructionfor mounting cliies ein: ployable in pairedrelation-to mount a; telescope sight nmnyaajaCemanc o erative asso'c'ia tion with the bore line Of a rifle;

A further object of the invention is to" provide improved telescope sight mounting means adapted to" facilitate operative association o'i: such sights with various makes, types,-and-' constructions of rifles.

A further object of the invention is to*provide iinpr'ov'edtelescope sight mounting" nieaiis adapt ed for theremovame and replaceableassociation of such "sights in" operativerelation with-various makes'and' types of rifles with a rfiinim'umof rifl alteration and modification.

A furthe'r object of the invention is't'o nrovide improved telescope sight mounting means" for rifles'that issimple'and'inexnensive of construction, facile" of installation, readily adaptable to use with and onparticular sights'and rifiesl and that is positive and efiicient in attainment acute ends for which designed;

With the foregoing and other obj'e in View, my invention consists in" th'econst ction, arrangement, and combination of elements hereinafter set forth, pointed out in my claim and illustrated by the accompanying drawing," in Which- Figure 1 is a side elevation of a typical rifle actionand telescope sight as" operatively interrelated' by means of agencies comprised in the instant invention. Fi ures-1s a cross-section;- on

an enlarged scale, taken on theindicat'ed line 2-2- of Figure 1-.- Figure E is a cross se'ction on the same scale as" Figure 2, taken on' thein'di' eaten line 3 3 of Figure 1 Figure" 4 is an end elevation of a mounting: clip" or bracket emhodying the principlesoftheinvention: Figure 5 isa cross section taken on the indicated line *5'-5 of Figure 4.- Figure Sis-"across sectidn'ta-ken on the indicated line 6 6 of Figure" 4 Figure 7 is a fragmentary, detail section, taken substan tially" on the indicated line 1- of Figure '1,=illus- 2 trating a'structural modification advantageously employable n1- and'with other elements of the invention;

Telescdp'esightsfor the aiming ofriflesare'now in common and wide=spread use; conventionally consist of a cylindrical, barrel heused lens' assembly mountable on the rifle action for visual correlation of ther'ifle front sight with the bore 01'' firelineof the gun, the eyepiece of 'thetelescope" ni'ojecting rearwardly be= yond' the" frame or receiver and" into convenient proximity" with the sighting: eye of thegun user. A' fa'ctor'of significance in the mounting and: use of telescope sights is the angle of" divergence between the sight line" and the=boreline ofthe" gun, which an'gle' is consequential in-the-vertical'plane dueto the necessity for mounting of the sight unitin superposed, spaced relation With-the gun bolt or chamber axis; and a primary novelty of the instantinv'e'ntion' resides in an improved mounting. efiective to bring the telescope sight lin'eand' rifie' bore line into a minimum spacing and angular divergence.

In the drawing, atypical rifle action in association with a conventional stock at is-illustrated as comprising a receiver or frame I c'oacting with a barrel l2 and reciprocably housing a bolt l3 coactable with said barrel; such a construction and interrelation of elements being typical of rifles wherewith it is advantageous to use telescope sights: A conventionaltelescope sight is shown as an'elongate, cylindrical barrel I4; commonly of uniform exterior diameter, equipped with an adjustable'eye piece [5 constituting its rearwardend", andhou'sing lenses 58' in any suitable-arrangement of desired powers. The frame or receiver H" is normally a suitably-Worked block'of metal recessed intermediate it ends for accommodation of the bolt I3 and for theoper'ations'incident to shell ejection, the recessing of said block being productive" of abrupt, angular shoulders in spacediopposition to define the re-= cess ends and intersecting the crown, or exposed top curvature, 01" the receiver; As conventionally constituted, the upper surface area of the receiver ends is transversely convex as an approximate continuation of the barrel 52' rear end and, being normally unobstructed, afiords'a suitable se'at-orbase for the telescope sight mounting.

Giving effect to'the" principles of the invention, a pair of saddles or brackets, each furnished with a loop clip, is provided for mounting in spaced relatior'i' on the separated bosses of the nameor receiver H in clampably" encircling relation with the sight barrel Hi, saidsaddles or brackets dis- Such sights V tinguishing from previously-known, analogous devices in their particular form and construction whereby they are adapted to securely mount the telescope sight with its sight line closely adjacent the bore line of the gun. The saddle or bracket elements comprised in each mounting pair may be identical and hence reversible for use on either end of the frame or receiver recess, or said elements may be complementary in a right and left hand construction whereby they are individually adapted for use at a given end of said recess.

Whether of identical or complementary-paired arrangement, each of the saddle or bracket elements includes a doubly-concave base block ll of substantial width and length. The block ll is formed as an integral unit from any suitable rigid material, such as metal, and is arcuately concave throughout the major length of its lower surface to a radius conforming with that of the receiver or frame H end boss upper surface, such recessing of the block ll under surf-ace being continued through one end of the block and being arrested inwardly adjacent the other block end to leave an integral web 58 perpendicular to the axis of the concavity and marginally coincident with the lowermost edges of the block as intersected and defined by said concavity. The upper surface of each block I! is concaved to a radius conforming with that of the sight barrel 14, the block upper and lower surface concavities being centered on a line perpendicular to the web 18 lower margin, and the upper surface concavity is extended through both ends of the block i! to provide a seat for closely-fitted reception of the barrel M. In the working of the block ll, the centers of the upper and lower surface concavities are spaced apart a distance equal to or slightly less than the sum of the arc radii, so that completion of the concavities results in elimination of any block ll material between the tangent or intersecting arcs throughout the block length except for the thickness of the web 18, such elimination of block material being productive of a generally rectangular, open slot E9 centrally of the block width and opening from the web inner face through the remaining block length and the end of said block remote from said web, the resulting block hence approximating a horseshoe or U-sh-ape in plan and the web 18 serving to interconnect and rigidly unite the two block segments thus separated. Upper surfaces of the block I! at the sides of the concave seat therein are beveled or inclined to faces approximately radial of its upper concavity and suitable holes 29 perpendicularly intersect said faces and the adjacent block thickness for the accommodation of threaded studs 25 engageable therethrough and with threaded bores formed for their reception in and through the receiver or frame end boss upper surfaces adjacent the angular shoulders terminating the latter. lhe threaded holes intersecting the frame or receiver end boss upper surfaces for reception of the studs 2| are so located and correlated with the holes 28 of the block ll as to position and securely mount one of said blocks on the inner end of each frame or receiver end boss with the lower block concavity conformably embracing and seating against the convex boss surface and the block web laterally engaging and covering the boss angularly-shouldered inner end as a depending skirt serving to limit displacement of the block in one direction longitudinally of the frame or receiver. Mounted on and clamped to the frame or receiver end bosses by means of the studs 2| in the manner shown and described, the spaced blocks [1 are aligned longitudinally of the gun assembly with their upper concavities in registration and respectively tangent, through the block open slots [9, to the convex end boss upper surfaces, in which mounted relation said block upper concavities constitute saddles for the reception of the tele scope sight barrel l4. To facilitate precise correlation of the blocks I! with the receiver bosses and with each other through successive block removals and remountings, the holes 20 on corresponding sides of said blocks may be reamed or countersunk to conical form for coaction with conical-shanked studs 2! clampably engageable therethrough in an obvious manner to repetitiously align said blocks in an initially determined relation with the receiver and with each other, as represented by the showing of Figure '7.

To secure the telescope sight in and to the saddles provided by the blocks ll, each of said blocks is formed or furnished with a circularly-'- arcuate spring clip 22 concentric with the block upper concavity and preferably at the end of the block carrying the web 18. The clip 22 may be integral with its associated block ll, as illustrated, in which event the said clip merges at one end with one side of the block and rises outwardly and upwardly therefrom as a continuous band completing the circle whereof the block upward concavity is an arc, the free end of said band being formed with an angularly-related foot 23 disposed to close against the adjacent block radial face and to be clamped thereto by means of a threaded stud 24 engaging through a hole in the foot 23 registrable with a threaded hole perpendicularly intersecting the block face. As so constructed, the loop formed by the band 22 may be opened and expanded through removal of the stud 24 and separation of the foot 23 from its adjacent block face, thereby providing for removal and replacement of the telescope sight barrel I l relative to said loop, and the telescope sight mounting is completed with rigidity and security through seating of the stud 24 through the foot 23 and in the block I! to clamping engagement of the band 22 about the sight barrel 14 in any desired adjustment of the latter. Obviously, the clip 22 may be an element separate from the block H, in which case it is convenient to provide a foot 23 on each free end of the clip for clamped engagement, by means of studs 24, against the block ll radial faces.

The novel mounting brackets or saddles of the improvement are susceptible of ready manufacture in sizes suited for association with various makes and types of rifles and for the reception and support of various particular telescope sights, modification of a given rifie for the mounting of the brackets and saddles thereon being a simple operation that in no way impairs the normal functioning and efiiciency of the gun. The form and construction of the brackets or saddles result in a mounting of the telescope sight with its barrel tangent to the frame or receiver end boss upper surfaces, thereby bringing the sight line into advantageously close proximity with the bore line of the gun for the development of a compact, operatively efficient assembly, the web E8 of each bracket or saddle rigidly completing the clip loop, uniting the separated elements of the block, and determining the mounted relation of the block unit on the gun in an efiective and advantageous manner.

Since many changes, variations, and modifica- 5 tions in the specific form, construction, and arrangement of the elements shown and described may be had without departing from the spirit of my invention, I wish to be understood asfbeing limited solely by the scope of the appended claims, rather than by any details of the illustrative showing and foregoing description.

I claim as my invention:

1. A telescope sight mount for rifles, comprising a pair of brackets removably and replaceably securable in spaced relation on and longitudinal alignment with a rifle receiver upper surface, each of said brackets including a saddle block concaved to closely engage with and over the receiver upper surface, a transverse end web obstructing the receiver-accommodating concavity, a cylindrical sight barrel seat opposed to and tangentially intersecting the length of the receiveraccommodating concavity uninterrupted by said web to divide said length into separated block portions, a contractible and expansible lofop clip upstanding from said block above and in parallel relation with said web, and holes for thereception of attaching means intersecting the separated portions of said block radially ofthe re ceiver-accommodating concavity.

2. In a telescope sight mount for rifles, a bracket including a saddle block, a concavity in 6 the under side of said block for close-fitting engagement with a rifle receiver, a web on and transversely of one end of said block in obstructing relation with said concavity, a cylindrical sight barrel seat forming the block upper side in axially-perpendicular relation with said web and tangentially intersecting the block length at the side of said web to divide the non-web portion of the block into spaced, parallel legs, a contractible and expansible loop clip upstanding transversely of said block above said web in concentric relation with said seat, and holes for the reception of attaching means radially intersecting the separated block legs.

KENNETH E. CLARK.

REFERENCES CITED The following references are of record in the V file of this patent:

Images