US1000744A

US1000744A - Support for gun-sights.

Info

Publication number: US1000744A
Application number: US46420608A
Authority: US
Inventors: John F Meigs; Herman G Jakobsson
Original assignee: Bethlehem Steel Corp
Current assignee: Bethlehem Steel Corp
Priority date: 1908-11-24
Filing date: 1908-11-24
Publication date: 1911-08-15
Anticipated expiration: 1928-08-15

Description

3. I. MEIGS & H. G. JAKOBSSON. SUPPORT FOR @1111 sums. 1 APPLICATION FILED NOV. 24, 1908. 1,000,744. Patented Aug. 15,1911. 4 sums-11111111 1.

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J. F. MEIGS & H. G. JAKOBSSON.

SUPPORT FOR GUN SIGHTS.

APPLICATION FILED 11017.24, 190s.

Patented Aug. 15, 1911.

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3M0 Hui-rm I i J. P. MEIGS & H. G. JAKOBSSON.

SUPPORT FOR GUN SIGHTS.

APPLIOATION FILED NOV. 24, 1908.

Patented Aug. 15, 1911.

4 SHEETS-SHEET 3.

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SUPPORT FOR GUN SIGHTS.

APPLICATION FILED NOV. 24, 1908.

Patented Aug. 15, 1911.

4 SHEETS-SHEET 4.

Wi-tweoom a iNSTRUNiENTS.

UNITED STATES PATENT OFFIQE.

JOHN F. MEIGS AND HERMAN G. JAKOBSSON, OF SOUTH BETHLEHEM, PENNSYLVANIA,

ASSIG-NORS TO BETHLEHEM STEEL COMPANY, OF SOUTH BETHLEHEM, PENNSYL- VANIA, .A. CORPORATION OF PENNSYLVANIA.

SUPPORT FOR GUN-SIGHTS.

Specification of Letters Patent.

Patented Aug. 15, 1911.

Application filed November 24, 1908. Serial No. 464,206.

To all whom it may concern:

Be it known that we, JOHN F. MEIGS and (HERMAN Gr. JAKoBssoN, a citizen of the United States and subject of Sweden, respectively, and residents of South Bethlehem, Northampton county, Pennsylvania, have invented certain new and useful Improvements in Supports for Gun-Sights, of which the following is a specification.

This invention relates to gun sighting devices of the character illustrated in our Letters Patent No. 895,482, issued August 11, 1908, and consists in certain improved features of construction fully set forth hereinafter and illustrated in the accompanying drawing, in which:

Figure 1 is a side elevation of the improved device; Fig. 2 is a transverse section; Fig. 3 is a side elevation in part section on the line 3-3 Fig. 2; Fig. 4 is a plan showing part of the sighting device support; Fig. 5 is a plan showing the combination of two sighting means as arranged on opposite sides of the gun; and Fig. 6 is a detached view of part of the training devices.

The telescope A and an open sight B are supported by a carrier 0 which is pivoted to swing upon a rocking support S. The support S is provided with a hollow stem or sleeve 13 and a rock shaft F which extends across the gun and is supported in the bracket G attached to the gun cradle so as to move with the gun. In the sleeve 13 plays a piston E, the lower end of which is enlarged to constitute a strap 2 that encircles an eccentric H upon a shaft I having its bearings in the casing T and supporting a worm wheel J, and extending outside the casing to support a disk L provided with aperipheral scale w, adjacent to which an index L is supported by an arm extending from the casing. With the worm wheel J engages a worm K upon a vertical shaft K which turns in a projection of the casing and has at the lower end a hand-wheel K, by turning which the worm wheel J, shaft I and eccentric may be turned so as to swing the support S upon its bearings and thereby alter the inclination of the carrier and the sight devices. It will be noted that the worm K both moves the shaft I and looks it in position. The eccentric H is laid out in such a manner that the angular motion of the same around the center of the shaft I is magnified about twelve times the angular motion of the piston E, that is for fifteen degrees elevation of the telescope the eccentric turns about one hundred and eighty degrees, carrying with it the disk L, the graduat-ions of which may be consequently magnified to about twelve times of what would otherwise be their dimensions so as to be more readily read. To avoid any possibility of slip a binding screw M is supported by a bracket 15 so that it may be turned and brought to bear upon the disk. The casing T is divided into an upper section 4 and a lower section 5, which are secured together by bolts as shown. The upper section is recessed to receive rock shaft F and a cap piece G is bolted to this section.

A table or support 12 is mounted upon the support S by means of the dove-tail construction shown in Figs. 1, 3 and 6. This table therefore is rigidly connected to the support S so as to move therewith about the rock shaft F. The carrier C is mounted upon the table 12 so as to swing thereon about a pivot pin 22. This pivot pin extends through the table 12 and into the support S as shown in Fig. 2, and therefore provides means for securing table 12 in position on support S. The mechanism for moving the carrier C about the pivot 22 on the table 12 is mounted upon a bracket extending' from the carrier C. This construction is clearly shownin Figs. 1, 2 and 5. The table 12 is provided with rack teeth 17 engaged by a worm 16 mounted upon a shaft P, which shaft is mounted in bearings upon the bracket extending from the carrier 0. A worm wheel 18 mounted upon the shaft P meshes with a worm 19 mounted upon a vertical shaft P provided with a hand-wheel N. The shaft P has also fixed to it a graduated disk P and an index N supported from the bracket extending from the carrier C indicates the amount of deflection imparted to the carrier G. The carrier C has an overhanging portion which prevents vertical movement of the carrier relatively to the table 12. This overhanging is clearly shown in Figs. 1 and 3. The index N as well as the index L are provided. with the usual illuminating means as shown in Fig. 1.

In Fig. 5 is illustrated the arrangement of two devices, one on the pointer side and the other on the training side of the gun, the supports S of the two devices being both connected rigidly to the rock shaft F, as before described, so that each receives the same motion in elevation, while a con necting rod 0 is pivoted at each end to projections on the carriers 0, whereby they are caused to swing together to the same extent. The hand-wheel K and connections for rocking the adjacent support is used only in connection with the device at the pointer side as the rocking imparted to the support at this side is transferred to that of the other through the medium of the shaft F, so also the hand-wheel N and its connections for swinging the carrier is only upon the device at one side. Above each sighting device is mounted a head rest Q, which is at the end of a bar Q, sliding in a fixed support R, and a suitable dog or clamping device is employed for securing the bar after adjustment. As shown the dog is in the form of a cross pin 20 having one side fiattened so that the notched bar Q may slide readily below the pin when the flat side is above the bar, but by turning the pin by means of a handle 21 the rounded portion thereof may be brought into one of the notches y to hold the bar in place. Preferably the cross bar 0 is in two sections threaded at the end to receive the nut 10 by means of which the bar may be lengthened or shortened to bring the two devices exactly parallel. The casing T is divided horizontally on the plane of the axis of the shaft I, and the lower section 5 is bolted to the upper section 4: so that by separating these parts the shaft I and its connections can be readily withdrawn, and a cap piece Gr is bolted above the journal 3, and when detached permits the withdrawal of the shaft F and other portions of the apparatus from the casing.

By the above described construction the range scale is greatly enlarged so as to be very readily read; there is no lost motion, and the cost of manufacture is reduced, while all of the parts for adjusting the ver tical angle of the sighting devices are thoroughly inclosed and protected.

IVithout limiting ourselves to the con struction and arrangement shown, we claim:

1. The combination with a telescope of a rocking support, a piston sliding in said support and provided with a strap, a shaft and eccentric thereon fitting said strap, a disk having a scale connected with said shaft, means for turning said shaft, and a pointer supported in a stationary position adjacent to the scale.

2. The combination withaitelescope, of a rocking support, a piston sliding in said support and provided with a strap, a shaft and an eccentric thereon fitting said strap, a disk having a scale connected with said shaft, a worm wheel on said shaft, a worm for turningand locking the wheel, and a pointer supported in stationary position adjacent to the scale.

8. In a sighting device, thencsmhigation same, a rocking support for the carrier, mechanism and connections for rocking the support including a shaft, a casing inclosing substantially the entire mechanism and its connections and consisting of upper and lower separable sections, the shaft projecting through the casing, a graduated disk mounted on the shaft outside of the casing, and an index for the graduated disk mounted on the casing.

1. The combination of the telescope, its rocking support and means for rocking the same, of a casing inclosing the support and rocking means and consisting of upper and lower separable sections, the upper section recessed to receive a shaft of the support, and a cappiece bolted thereto.

5. The combination of the rocking support, its operating means and scale, of a i ng devices on the carrier, a horizontal shaft turninginbearingsonthe carrier and provided with a worm and with a worm-wheel, teeth on the support engaging the said worm, and a hand shaft carried by the carrier and provided with a worm engaging the said worm-wheel.

6. The combination of the rocking sup port, its operating means and scale, of a carrier swinging on the said support, sighting devices on the carrier, a horizontal shaft turning in bearings on the carrier and provided with a worm and with a worm-wheel, teeth on the support engaging the said worm, a hand shaft carried by the carrier and provided with a worm engaging the said worm-wheel, and a graduated disk and pointer arranged to indicate the extent of swinging movement of the carrier.

7. The combination with a sighting de vice, of a carrier therefor, a table upon which said carrier is adapted to swing, a support for the table, and a pivot pin for the carrier which engages the support and locks the carrier and the table to the sup port.

iviihraielescope gf a carrier supporting the carrier swinging'o'n" thesaid support, sight=.,

II ulLullsvu 8. The combination with a sighting de- In testimony whereof we affix our signavice, of a carrier therefor, a table upon tures in presence of two witnesses. which said carrier is adapted to swing a support for the table, a pivot pin for the N g i 5 carrier which locks the carrier and the table to the support, worm teeth on the table, WVitnesses: and a Worm supported by the carrier and LEIGHTON N. D. MIXSELL, engaging the teeth. EDWIN A. MILLER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0.