US2193302A - Telescope sight mounting - Google Patents

Description

@mi UH HUGH! EVB-248.

March 12, 1940. M. L.. sTn'H I TELESCOPE SIGHT MOUNTING Filed April 22. 1937 ATTO ccriitll iiQm Patented Mar. 12, 1940 UNITED STATES PATENT OFFICE 6 Claims. (Cl. 33--50) rie or other gun, whereby the scope may be vention will be hereinafter described, together 5 readily adjusted and also whereby said scope does with other features of the invention. not interfere with the handling of the gun. The invention will be more readily understood An important object of the invention is to from a reading of the following specification and provide an improved mounting for attaching a by reference to the accompanying drawing, in telescope to a gun barrel and having means for which an example of the invention is shown, and

adjusting the telescope laterally of the axis of wherein: the barrel, as well as vertically thereof; the ad- Figure 1 is a partial elevation of a ride, having justing mechanism being rugged and substana telescope attached thereto by a mounting, contially coarse, whereby accurate adjustment of structed in accordance with the invention, u the scope may be effected without the usual Figure 2 is a transverse, vertical sectional 15 ultra fine adjusting devices, which are easily view, taken on the line 2-2 of Figure 1, damaged and which require careful and expert Figure 3 is a longitudinal, sectional view of operation. the objective end of the telescope, showing its Another object of the invention is to provide mounting to the rifle barrel, an improved mounting of the character de- Figure Sais an isometric view of the compen- 20 scribed, wherein the telescope is supported on sating member, the gun at two points which are spaced a sub- Figure 4 is a transverse, vertical, sectional view, stantial distance apart, with means for obtaintaken on the line 4-4 of Figure 3, ing an adjustment of the scope with relation to Figure 5 is an end elevation of the clamping the gun by swinging the same on one of its supcollar for supporting the inner end of the tele- Z5 porting points; the distance between the supscope, porting points making for a wide range of ad- Figure 6 is a side elevation of the same, justment of the scope with relation to the target Figure 7 is an end elevation of the supporting with a minimum movement of the scope with post or bracket for the clamping collar shown in relation to the gun. Figures 5 and 6, 30

Still another object of the invention is to pro- Figure 8 is a side elevation thereof, vide an improved mounting for securing a tele- Figure 9 is a sectional view of the lateral adscope to a gun barrel which is so constructed justing micrometer screw which is threaded in that the scope is mounted close to the barrel and the post, is streamlined so that the projection of the scope Figure l0 is a View of the set screw for the 85 is minimized, whereby the same does not inmicrometer screw, terfere with the insertion of the gun into its Figure 11 is a transverse, vertical, sectional scabbard and also whereby danger of damaging view, taken on the line II--H of Figure 1. the scope while handling the gun, is obviated. Figure 12 is a view, similar to Figure 3, show- A further object of the invention is to provide ing a modied form of mounting the objective 0 an improved mounting for a telescopic sight of end of the telescope, a gun having means for shading the objective Figure 13 is a plan view thereof, and lens of the telescope from the sun and for pro- Figure 14 is a transverse, sectional View, taken tecting said lens from damage, whereby more on the line lli-I4 of Figure 12. accurate shooting is possible. In the drawing, the numeral I0 designates a 45 Still another object of the invention is to proportion of the stock of a rifle, which may be of vide a mounting of the character described, havany suitable construction. 'I'he usual rifle barrel ing means for compensating for temperature il has its rear end supported in the stock in the changes of the gun barrel due to repeated firing usual manner and the shell chamber i2 is lothereof, whereby the telescope is positively maincated at the rear of the barrel. The ejecting 50 tained in adjusted positions at all times. bolt I3 of the rifle has its outer end slidable in A still further object of the invention is to prothe shell chamber i2 and its rear end has the vide improved means for mounting a telescope usual hand lever i4 secured thereto. The bolt on a gun, said means being so constructed that it is slidable through a receiver cr collar I5 which y may be attached to any type of gun and also is supported in the stock IU at a point preferably Il This invention relates to new and useful improvements in telescope sight mountings.

One object of the invention is to provide an improved means for mounting a telescope on a being exible to the extent that it may support the telescope either directly above the gun barrel or to one side thereof.

A construction designed to carry out the inabove the trigger IIJ of the rie. All of the above parts are of the usual construction and form no part of the present invention. They have been described merely for the sake of clarity.

A telescope I6 of the usual commercial type designed for mounting on guns has the adjustable eye piece I'I at one end of its barrel or tube. An objective lens I'I is located within the tube at the outer` end thereof (Figure 3). It is desirable that the telescope I6 be mounted as close to the gun barrel II as is possible and also that said telescope be arranged to undergo a lateral adjustment with relation thereto.

For mounting the telescope on the rifle, a sleeve I8 is secured to the rear end of the barrel and overlies the chamber |2. The forward end of this sleeve rests on a saddle I9 which has its upper surface recessed to receive the sleeve, as is clearly shown in Figure 4. The underside of the saddle |'9 is flat and rests on a supporting block 20, which block has its underside curved to conform to the surface of the barrel II. The block 20 is fastened to the barrel I I by a screw 2|. A similar screw 22 extends through the sleeve I8, through the saddle I 9 and through the other end of the block 20 and then into the: barrel II. With such arrangement, it will be obvious that the sleeve is rigidly fastened in axial alinement with the barrel Il'. The forward or objective end of the telescope I6 is inserted within the sleeve I8 and does not extend entirely therethrough but, as shown in Figure 3, terminates short of the forward end of said sleeve. The internal diameter of the sleeve I8 is made several thousandths of an inch larger than the diameter of the telescope tube, whereby a steel compensating plate or shim 23 may be interposed between the telescope and sleeve. This steel member has its ends normally bent downwardly as shown at 23 in Figure 3a, and acts to hold the outer or objective end of the telescope in positive engagement within the sleeve I8. Due to the springiness or resiliency of themember, the same prevents any play of the telescope within the sleeve and absorbs shock and vibration. The steel member also compensates for temperature changes of the gun barrel due to repeated firing of the gun in rapid succession and therefore provides for the maintenance of the position of the telescope with relation to the gun barrel II.

Since the end of the telescope I6 terminates short of the outer end of the sleeve I8, it will be manifest that the sleeve acts as a sunshade to protect the lens |'I of the telescope from the sun rays. Also the extended end of the sleeve protects the lens from accidental damage. It is pointed out that the forward end of the sleeve I8 is inclined rearwardly toward its upper end whereby a streamlining effect isgiven; This incline at the outer end of the sleeve obviates danger of the sleeve hanging or becoming caught on obstructions while the gun is being handled and also makes for easy insertion of the gun into its scabb-ard.

From the above, it will be seen that the sleeve I8 positively supports the forward or objective end of the telescope I6 in its proper position on the gun barrel. For adjustably supporting the opposite end of the telescope I6, a clamping collar 24 is provided (Figures 1 and 2). The collar 24 is split and encircles the tube or barrel of the telescope and suitable binding screws 25 are arranged to securely clamp said collar therearound. The clamping collar 24 is supported on a bracket 26 which is secured by suitable screws 2'I to the receiver I5 through which the gun bolt I3 slides, as is clearly shown in Figure 2. The bracket 26 extends upwardly from the stock I8 of the rie and is disposed contiguous to one side of the clamping collar 24. For fastening the collar 24 to the supporting bracket 26, said bracket has its upper end or portion formed with a threaded opening 28 through which amicrometer screw 29 is threaded. A slot 30 extends from one vertical edgeofthe bracket 26 inwardly to the opening-29, whereby said opening may be increased or reduced depending upon the closure of the slot 30 (Figure 8). A binding screw 3| is threaded downwardly through the bracket and is adapted to normally hold the opening 28 to a xed size so that the micrometer screw 29 may be 'threaded therethrough. Obviously, if the binding screw 3| is tightened with the micrometer screw 29 within the opening 28, said screw will be clamped in a predetermined position and will be incapable of movement until such time as the screw 3| is loosened so as to permit an increase of the opening 28. With the arrangement of the slot 30 and the binding screw 3|' it is possible to clamp the micrometer screw 29 in any position within the opening 28. Normally, the inner end of the screw 29 engages the outer surface of the clamping collar 24.

The screw 29 is provided with a bore 29 through which a supporting screw 32 extends. The bore of the screw 29 is countersunk so as to receive the head 32 of the screw 32. The inner end of the screw 32 is arranged to be threaded into an opening 33 provided in the side of the clamping collar 24, whereby said clamping collar is supported on and secured to the bracket 26. Since the inner end of the micrometer screw 29 is engaging the side of the collar 24, an adjustment of the screw 29 with relation to the bracket 2B will cause a variation of the space between the collar 24 and the bracket 26. Therefore, it is possible to change the position of the clamping collar 24 with relation to the axis of the barrel of the rie. To accomplish the adjustment, it is only necessary to loosen the supporting screw 32 and the binding screw 3| after which the micrometer screw 29 may be adjusted to its proper position. The head of the screw 29 may have suitable indication or marking A (Figure 1) thereon so as to aid in the adjustment. After the screw 29 has been properly adjusted, it is only necessary to tighten the binding screw 3| and the supporting screw 32 and the rear end of the telescope I6 is again secured in a fixed position with relation to the axis of the gun barrel It is of course obvious that the screw 22 which holds the sleeve I8 on the gun barrel II must be loosened while the rear end of the telescope I6 is being adjusted, which permits the telescope to swing or pivot laterally on the screw 22 whereby the angle or axis of the telescope is changed with relation to the axis of the gun barrel. After the adjustment of the screw 29 has been completed, the screw 22 passing through the sleeve I8 is again tightened.

It is pointed out that the screw 22 is located a substantial distance from the micrometer screw 29 whereby the fulcrum point on which the telescope swings is a substantial distance from the point of movement of said telescope. This increased radius of swing of the telescope during the adjustment permits a very accurate and quick adjustment of the telescope to a predetermined position without minute micrometer setting and all) 5 during handling of the gun. The mounting is such that the telescope is located right on the gun barrel which minimizes the distance between the gun axis and the telescope axis. The streamlining of the sleeve I8 permits the scope to enter 10 the scabbard of the gun whereby it need not be detached when the gun is not in use. The sleeve also provides an integral sunshade for the objective lens II of the telescope, while the steel plate or shim 23 compensates for the temperature 15 changes in the gun barrel due to repeated ring of the gun.

The telescope is shown as mounted in axial alinement with the gun barrel which causes said telescope to overlie the shell chamber I2 and eject- 20 ing bolt I3 of the rifle. During firing of the rifle it will be evident that as the bolt I3 is pulled rearwardly the shell is ejected from the chamber I2 and in some rifles is thrown upwardly. In order to prevent the shell from striking the telescope 25 I6 and to properly eject said shell a deilector 34 is provided (Figures 1 and 11). The deector takes the form of a collar which is split so as to be engaged around the barrel or tube of the telescope I 6. A suitable set screw 35 securely 30 fastens said deilector in position. The collar has an extension 34 which overlies the bolt I3 and which is inclined as is clearly shown in Figure 11. As the shell is ejected from the chamber I2, it strikes the inclined surface 34' of the deflector 35 and is thrown outwardly to one side of the riie,

whereby said shell is ejected and damage to the telescope is prevented.

Although the telescope is shown as mounted directly above the rifle, it is evident that the o same could easily be mounted to either side out of axial alinement with the gun barrel. In such case the block 20 would take the form of a at bar and would project outwardly to one side of the rifle barrel I I. The sleeve I8 would be sea cured to such flat bar. In such instance, the

clamping collar 24 would be secured to the outer surface instead of to the inner surface of the supporting bracket 26. If it were desired to locate the telescope on the left side (Figure 2) of the riiie barrel, the bracket 26 could be mounted on the opposite side of the collar I and gun stock I0.

In many instances, it is desirable to mount the telescope I6 so that it might undergo a vertical adjustment with relation to the gun barrel, as well as a lateral adjustment with relation to the axis thereof. In such instance the mounting of the supporting sleeve I8 at the objective end of the telescope is as shown in Figures 12 to 14. In such case the sleeve is secured by a screw 36 to one end of a base plate 3'I which plate extends forwardly of the sleeve I8. The base is provided with a threaded opening 38 and a slot 39 extends from this opening to the outer end of the plate.

65 A binding screw 40 extends transversely in the 70 secured to the rie barrel II by machine screws 43. The micrometer screw 4I has a bore 4I through which a screw 44 extends.

When it is desired to obtain a vertical adjustment of the telescope by raising the objective end 75 thereof, the rear micrometer screw 29 is loosened so that the telescope may swing or pivot on the supporting screw 32. 'I'he binding screw 40 and the screw 44 are then loosened to permit rotation or adjustment of the micrometer screw 4I, and as the latter is rotated the base plate 31 is lowered or raised with relation to the gun barrel4 II. When the proper adjustment is had the screw 44 is then tightened and the binding screw 40 is also tightened, whereby the mircometer screw is securely clamped in position, which positively prevents any movement of the base plate 3'I which supports the forward end of the telescope. The rear micrometer screw 29 is then properly adjusted for the lateral position of the telescope. With this arrangement, it is obvious that the telescope may be properly adjusted either laterally or vertically of the gun barrel II. Due to the substantial distance between the adjusting point and the fulcrum point or pivot on which the telescope swings, it is possible to get a very accurate adjustment. The adjusting mechanism is rugged and not subject to damage and may be easily operated by any inexperienced person. The minute micrometer settings usually employed in telescope mountings for rifles are entirely eliminated and a most simple and effective mounting is had.

What I claim and desire to secure by Letters Patent is:

l. A telescope sight mounting for firearms including, an elongate sleeve attached to the barrel of the firearm and adapted to receive the objective end of the telescope, said sleeve having the rear portion thereof engaging the shell chamber of the iirearm and the forward portion thereof overlying the barrel, whereby the objective end of the telescope is mounted in close proximity to the barrel, a clamping member surrounding the opposite end of the telescope, an upright bracket on the side of the firearm extending upwardly adjacent the clamping member, a micrometer screw threaded through the bracket and having its inner end abutting the clamping member, and a binding screw passing axially through the micrometer screw and threaded into the member for locking the member tightly against said micrometer screw, the adjustment of the latter spacing the member from the bracket a desired distance, whereby a lateralv adjustment of the telescope with relation to the axis of the rearm barrel may be effected..

2. A telescope sight mounting for firearms including, an elongate sleeve for receiving the objective end of the telescope, a relatively thin supporting plate secured to the barrel of the firearm, means for adjustably attaching the sleeve to the plate whereby a vertical adjustment of the sleeve and objective end of the telescope may be effected, a clamping member surrounding the opposite end of the telescope, an upright bracket on the side of the firearm extending upwardly adjacent the clamping member, a micrometer screw threaded through the bracket and having its inner end abutting the clamping member, and a binding screw passing axially through the micrometer screw and threaded into the member for locking the member tightly against said micrometer screw, the adjustment of the latter spacing the member from the bracket a desired distance, whereby a lateral adjustment of the telescope with relation to the axis of the firearm barrel may be eiected.

3. vA device for mounting telescopes on guns, including a substantially plate-like member xed to the bottom of the telescope and having a ver- Cil tical threaded opening therein, means to connect the member \to\the front part of the telescope, a second substantially plate-like member underlying the first member and secured to the upper side of the gun, rotatable means disposed between the members having a part threaded into said opening and having an operating part extending beyond the members whereby to rotate same to eiect vertical adjustments of the rst member, and thereby the front end of the telescope relative to the gun, means to hold the rotatable member against rotation following adjustment thereof, and means to connect the rear end of the telescope to the gun to provide for said vertical adjustments of the front end thereof.

4. A device for mounting telescopes on guns, in accordance with claim 3, wherein the holding means for the rotatable means consists of a screw having threaded engagement with the gun, and which has its head concentric with the threaded opening of the first member for manipulation through the opening to be moved to seat against the rotatable means.

5. A device for mounting telescopes on guns, in accordance with claim 3, wherein the holding means for the rotatable means has a part in register with the threaded opening to provide for manipulation thereof through said opening.

6. A device for mounting telescopes on guns, in accordance with claim 3, wherein the rotatable means consists of a substantially disk-like element and wherein the holding means consists of a screw threaded into the gun and having its head impingeable against the disk-like element.

MARCUS L. STITH.

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