US3276127A - Rifle scope mount - Google Patents

Description

W. E. ABRAHAMSON Oct. 4, 1966 RIFLE S COPE MOUNT 2 Sheets-Sheet 1 Filed Oct. 9, 1964 INVENTOR. M/qyrze fflfi/whamso/x ,4 TTURN Oct. 4, 1966 w. E. ABRAHAMSON 3,276,127

' RIFLE SCOPE MOUNT Filed *Oct. 9, 1964 2 Sheets-Sheet 2 INVENTOR.

kl/ay/ye E Abmfiwwwz Unite States Patent 3,276,127 RIFLE SCOPE MGUNT Wayne E. Ahrahamson, algary, Alberta, Canada {P.O. Box 5, Penhold, Alberta, Canada) Filed st. 9, 1964-, Ser. No. 402,767 1 Claim. (Cl. 33--50) This invention relates to an assembly for seeming a scope to a firearm, the primary object being to provide within the mounting means an arrangement of parts capable of permitting the user to quickly and easily make fine adjustments, that is to say, shift the scope with respect to the firearm and thereby align the scope properly with respect of the firearm barrel, thereby compensating for various conditions such as wind.

It is the most important object of my present invention to provide a scope mount which can be easily and inexpensively manufactured without extreme precision, yet provide for necessary adjustments to properly align the scope with the firearm when mounted thereon and assure desired accuracy, all without need for complicated, delicate and easily damaged component parts.

Still another important object of the instant invention is the provision of an assembly as above described which is unusually rugged, and therefore capable of withstanding considerable abuse, all without adversely 'afiecting initial adjustments made by the user so as to properly align the scope with the firearm.

In fulfillment of the aforementioned objects, the assembly forming the subject matter of my present invention utilizes a pair of spaced mounts, one of which provides, through a pivotal connection, the necessary swinging movement of the scope and the other of which mounts is provided with parts that may be simply shifted fore and aft of the firearm upon loosening of a clamp so as to cause minute swinging of the scope to preselected positions with respect to the firearm.

It is, therefore, another important object of the present invention to provide an assembly which will permit quick release and removal of the scope from the firearm by virtue of the fact that there is provided a pair of substantially identical interchangeable clamps that impale the scope each of which is in turn releaseably secured to bases or blocks, the latter of which are adapted for rigid joinder to the firearm.

In the drawings:

FIGURE 1 is a fragmentary side elevational view of a firearm and a scope showing the latter attached thereto through use of the novel mount of my present invention;

FIG. 2 is an enlarged cross-sectional view taken alongline 22 of FIG. 1 with the firearm and the scope omitted;

FIG. 3 is a cross-sectional view taken along line 33 of FIG. 2;

FIG. 4 is an enlarged elevational view similar to FIG. 1 illustrating one of the mounts of the assembly, parts being broken away and in section for clearness;

FIG. 5 is a transverse cross-sectional view taken on line 55 of FIG. 4, parts being broken away and in section to reveal details of construction;

FIG. 6 is an exploded perspective view of one of the mounts of the assembly;

FIG. 7 is a view similar to FIG. 6 other of the mounts of the assembly;

FIG. 8 is a rear elevation view, partially in section, illustrating a slightly modified form of one of the mounts; and

FIG. 9 is a view similar to FIG. 8 illustrating a slightly modified form of the other mount, partially in section.

Thefirearm 10 chosen for illustration of the invention illustrating the about to be described may be a conventional rifie as seen in FIG. 1, and it is to be appreciated that the particular nature of thescope 12 to be mounted thereon is of little consequence to the invention. For the most part, scopes that are normally employed with rifles include an elongatedcylindrical portion 14 adapted to be impaled by a pair of spaced apart clamps as will hereinafter he made clear. The assembly of the instant invention for securing thescope 12 to thefirearm 10 includes a first mount broadly designated by thenumeral 16 and a second mount 18, it being understood at this juncture that these two mounts might well be reversed withmount 16 rearwardly and mount 18 forwardly if such is desired.

Thefirst mount 16 includes an appliance broadly designated by thenumeral 20 connected with a unit broadly designated by thenumeral 22. Similarly the second mount 18 includes a coupling broadly designated i y thenumeral 24 that is connected with apparatus designated generally by thenumeral 26.

It is advantageous for theappliance 20 and thecoupling 24 to be identical so that the parts thereof are fully interchangeable; accordingly, they are both in the nature of sectional clamps which normally impale and tightly grasp thecylindrical portion 14 of thescope 12. To this end then the clamp orappliance 20 includes a pair ofsections 28 and 30 releasably interconnected by a pair of diametricallyopposed bolts 32. In the same manner, the coupling orclamp 24 has a pair ofsections 34 and 36 releasably held together bybolts 38.

Theunit 22 forming a part of themount 16 is in the nature of ablock 40 which may be provided with aninterface 42 contoured to conform with the configuration of that part of thefirearm 10 to which theblock 40 is rigidly secured, as for example through use of fasteners (not shown) received byopenings 44 in theblock 40.

Connecting this mechanism between theappliance 20 and theunit 22 includes apivot pin 46 having ahead 48 which is received within anundercut recess 50 formed in theblock 40. One end of therecess 50 is open to permit insertion of thehead 48 thereinto, and ready release of thescope 12 from thefirearm 10 as will hereinafter be more fully explained. Such open end of therecess 50 is normally closed by asmall plate 52 set within acavity 54 of theblock 40.Plate 52 is releasably held in place by a tongue and groove arrangement 56 and asuitable fastener 58.

Clamp section 30 has a cappedopening 60 which receives threadedshank 62 of thepivot pin 46, the latter of which in turn is provided with atool receiving kerf 64.

Theapparatus 26 forming a part of the mount 18 includes abase 66 having acontour 68 similar to and for the same purpose as thecontour 42. Here again,openings 70, comparable to theopenings 44, are provided in thebase 66 to permit rigid securement of thebase 66 to thefirearm 10.

Base 66 has an elongated,undercut slot 72 that extends obliquely of the longitudinal axis of thefirearm 10 for purposes hereinafter to be explained. Theslot 72 slideably receiveshead 74 of afastener 76 serving as interconnecting structure betweencoupling 24 andapparatus 26. A tappedopening 78 inclamp section 36 receives threadedshank 80 offastener 76,such shank 80 having atool receiving kerf 82.

In operation, theblock 40 and thebase 66 are rigidly secured in spaced relationship to thefirearm 10 in overlying relationship thereto substantially as illustrated in FIG. 1 of the drawings. Theclamp section 30 is attached to theblock 40 through use of thepivot pin 46 and to this end it is but necessary to insert a screwdriver into thekerf 64 through theopening 60 in order to draw theclamp section 30 against the upper face of theblock 40. Theplate 52 may then be placed into thecavity 54, it being noted that the tongue and groove connection 56 operates as a fulcrum as thefastener 58 is manipulated to draw theplate 50 tightly against thehead 48, thereby securing the latter tightly within theundercut recess 50. It is to be appreciated at this point that while a rather firm abutment betweenclamp section 30 andblock 40 is desirable, the clamping should not be so tight as to preclude swinging movement of themount 16 with respect to theunit 22 when adjustments are to be made as about to be described.

Thehead 74 of thefastener 76 is inserted into the slot 72 'through either end of the latter and here again, through use of a screwdriver in opening 78, engagingkerf 82, theclamp section 36 may be drawn tightly against the upper face of thebase 66.

Finally, theportion 14 of thescope 12 is placed within theclamp sections 30 and 36, theclamp sections 20 and 24 are placed over thescope 12 and thefasteners 32 and 38 employed to cause theclamps 20 and 24 to tightly grip thescope portion 14. When thescope 12 is to be adjusted, it is but necessary to loosen thefasteners 38 and thereupon shift theclamp section 36 with respect to thebase 66 causing thehead 74 offastener 76 to slide within theslot 72 longitudinally of the latter. It is necessary therefore to point out that whilefastener 76 should be sufiiciently tight to hold theclamp section 36 firmly against the upper face ofbase 66, it should not be so tight as to permit ready movement of theclamp section 36 with respect to thebase 66 for adjustment purposes.

It is now apparent that by virtue of the fact that theslot 72 extends generally fore and aft of thefirearm 10, yet obliquely with respect thereto, the movement of theclamp section 36, and therefore thehead 74 along withslot 72 will cause lateral swinging of thescope 12 as the result ofclamp 20 swinging about thepivot pin 62 and hence with respect to theblock 40.

One of the advantageous features of the assembly as above described and as herein initially indicated is the ready removal ability of thescope 12 from thefirearm 10 Without need of removal ofblock 40 andbase 66. It is but necessary to remove theplate 52 so as to release thehead 48 from therecess 50 whereupon thehead 74 may be slipped from place within theslot 72. This leaves thefastener 76 on theclamp section 36, thepivot pin 46 on theclamp section 30, the twoclamps 20 and 24 on thescope 12 and the twodevices 40 and 66 on thefirearm 10.

It is extremely important to note that by virtue of the fact that theclamps 20 and 24 remain attached to thescope 12 with the distance therebetween unchanged, thescope 12 is again automatically aligned as before with thefirearm 10 when thescope 12 is again reassembled with thefirearm 10 by insertion of theheads 48 and 74 inrecess 50 andslot 72 respectively.

The same principles of my invention are employed in the modifications of FlGS. 8 and 9 of the drawings. The differences lie solely in the manner of attachment to thefirearm 10. In FIG. 8block 40a may be identical withblock 40 in all respects except for elimination of thecontour 42 and the addition of a dependingflange 42a, the latter of which is provided with one ormore openings 44a comparable toopenings 40.

In FIG. 9base 66a is comparable tobase 66 except for elimination of thecontour 68 andopenings 70. Instead, anarcuate flange 68a depends frombase 66a andsuch flange 68a has openings 70a. It is to be understood that these slight alterations of FIGS. 8 and 9 are included to illustrate differing attachments to the firearm depending upon the particular nature and contour of the latter, all without altering or varying the concepts as hereinabove outlined and explained. 77

It can now be appreciated that all of the objects herein initially set forth, including ruggedness, inexpensive manufacture, ease of adjustment and adaptability for use with various types of firearms are accomplished by following my invention as described and illustrated.

Having thus described the invention what is claimed as new and desired to be secured by Letters Patent is:

An assembly for securing a scope to a firearm comprising:

a first mount having a unit adapted for attachment to a firearm and an appliance adapted for attachment to a scope;

mechanism connecting said appliance with said unit for swinging movement of the appliance with re spect to the unit; and a second mount spaced from said first mount and having a base adapted for attachment to said firearm and a clamp having a pair of releasably interconnected sections adapted to impale the scope, said base having an undercut slot formed thereon extending obliquely of the firearm, and said clamp having a head complementally received in said slot, the clamp being movable along the scope upon release of the sections for relatively shifting said head in said slot to swing the scope laterally as the appliance swings relative to the unit.

References Cited by the Examiner UNITED STATES PATENTS 1,816,195 7/1931 Redfield 3350 2,135,774 11/1938 Tildin 33-50 2,306,972 12/1942 Meisel 3350 2,445,595 7/1948 Bengert 3350 2,545,419 3/1951 Williams 3350 2,563,849 8/1951 Lebherz 3350 BENJAMIN A. BORCHELT, Primary Examiner.

SAMUEL FEINBERG, Examiner.

R. V. LOTTMANN, S. W. ENGLE,

Assistant Examiners.

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