US1137192A - Telescope. - Google Patents

Description

P. FERBER. TEL'EscoPE. APPLICATON FLED FB. I. 1913.

Patented A111127, 1915.

,t *Invent-o a Atty P. FERBER.

TELEscoPE.

APPLICATION FILED FEB. I. |913.

Patented Apr. 27, 1915.

2 SHEETS-SHEET 2.

Inventor:

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adjusted to a point exactly on a distant TED sTAs PATENT OFFICE.

rami FEEEEE, 0E HoEoxEN, NEw JEEsEY, AssIGNoE To vTHE KEUEEEL c EssEE COMPANY, oE' noEoxEN, NEW JEEsEY, A conPoEATIoN 0E NEW JERSEY.

' 'rEEEscoPE Specification ofLetters ratent.

I Patented Apr. 27, 1915.

application med ebmary 1, 191s. serial No. 745,613.

ToaZZ 'whom it may concern.'

Beit lmown that I, PHILIP FEREER, a citizen of the United States, residing at Hohoken, inthe county of Hudson and State 4ofNew Jersey, have invented certain new and useful Improvements inv Telescopes, of lwhich the following is a specification.

This invention relates-to bore-sight telescopes or telescopes designed to assist in bringing the bore of a'gun of large caliber target, and its novelty consists in the constructionand adaptation of the parts, as will be more fully hereinafter pointed out.

To attain the `end sought for, the line "of sight through the telescope must bebrought exactly parallel to the axis of the bore of the gun with which it isto be used. For this purpose the telescope is removably and temporarily mounted in some suitable manner in the breech of the gun. A centering point is attached to the gun at or near the muzzle for instance, formed by cross wires in a framework removably insertedin the gun, and when the cross wires of the telescope bisect this centering point thevline of sight of the telescope should be parallel to the bore of the gun, so that when the telescope is sighted on the distant target the line of sight of the gun should be exactly in line with this target provided, of course, the telescope is in proper adjustment. ln order to secure such proper adjustment it .is necessary. that means should be provided for moving `the cross wires in the telescope in both a vertical and horizontal direction and also means for revolving the telescope upon its longitudinal axis. is necessary that the adjusting screws for the cross wires should be within reach of the operator at all times, and provision should bemade for revolving the telescope in a truly cylindrical bearing, the axis of which is coincident with the longitudinal axis of the telescope. sion should be made for focusing all objects at dierent distances because, if the telescope is only capable of being focused on a distant object, the centering point at the muzzle of the gun cannot be distin- To that end ity Furthermore, provi-V guished; and on the contrary if it is ronly capable of being focused on a near object,

for instance, on the centering point at the muzzle of the gun, the distant target con- ,not be properly distinguished.

I have, in the invention which is the subject matter of this application, endeavored to overcome the objections heretofore exist-l ing in instruments of this class and have fulfilled the requirements which I have out'- lined as necessary to a'proper accomplishment of the object sought. The invention includes a telescope comprising an inner tube containing the lenses and an outer sleeve with two intermediate bearings between them, one a spherical bearing and another a truly cylindrical bearing in line .with the spherical bearing. Also, a system of cross Wires arranged in an eye-piece tubeslidably movable within the main tube of the telescope, and means for adjusting l such cross wires, and further means for adjusting the inner-tube of the telescope with respect to its outer sleeve and maintaining it in position after such adjustment.

In the drawings, Figure l is a side elevation of a telescope embodying the invention; FigQ 2 is a longitudinal central section thereof; Fig. 3 isa side elevation of the device, a portion being cut away to show concealed parts; Fig. 4 is a transverse section on the plane of the line 4--4 in* Figfl, and Fig. 5 is a section similar to that shown in Fig. 4 but exhibiting four screws instead of two. j

ln the drawings, 10 is the usual tube of a telescope provided at one end with an objective indicated at 11 and at the opposite end with an eye-piece indicated at 12, 12, 12, 12, the different lenses being carried in a tube- 120 lmounted to slide in a sleeve 121 also within the tube 10 by means of a ring 122, and` a terminal collar 123 mounted against the outer side Ofsaid ring 122.

Loosely mounted to surround the tube 10 fora substantial portion of itslength is a cylindrical sleeve 13y expanded by a shoulder 130 to form an annular flange 131 terminating in a ring 132 provided with both external and internal threads. A second cylindrical sleeve 14 also surrounds the tube 10 and at a slight distance therefrom, and being threaded at one end to engage the ring 132, is rigidly secured to the sleeve 13 l are exactly parallel to the longitudinal axis of the telescope, and which collar is arranged in the zone of the set screws 140 of the hold-I ing piece 141. An annular portion of the tube 13 indicated at 133 is adapted to bear against one of the bearings 15 and an intermediate annulus 134 threaded into the flange 131 of this tube 13 is adapted to bear against the other of the bearings 15.

It is obvious that when the adjusting screws 140 are moved the tube 10 as a whole will be moved within the tube made up of the two cylindrical- sleeves 13 and 14 as a whole but always moved upon the spherical bearings 15, 15, and adjustable in any direction permitted by the movement of the set screws 140 which are so arranged as to provide for such movement in every desired direction. l

The tube 120 of the eye-piece is provided near its outer extremity with cross wires 17 held in position' by adjustable threaded members 170, and this tube 120 is slidably mounted within` a second tubular member 125, its movement being limited by means of a stop member indicated at 126.

It will be observed that the sleeve 13 is externally threaded and there is provided an annular nut 18 which is adapted to be placed over this sleeve and to move along the same. This threaded sleeve and nut in connection with the lshoulder 130 on the sleeve 13 is intended as a means for mounting the telescope within the bore of the gun. This Ais accomplished by means of a temporary framework inserted transversely within the bore of the gun and having a central annulus, the inner periphery of which is vthreaded to engage the external threads of the sleeve 13. This transverse frame is the usual form of means for mounting the telescope within the gun, and no further description of it is needed to those skilled in the art. j

The manner of using the device is as follows: The telescope is inserted vin the transverse frame and the nut 18 is adjusted to hold it irmly in position. The gun is provided with a centering point, usually established at the muzzle, as before stated, by means of a ring inserted at the muzzle having cross wires or other indicator at the center of the bore. Such centering point having been inserted and thetelescope having been placed in the temporary frame above referred to, the telescope is then pointed at this central point and revolved in its longitudinal axis, and the adjusting screws 140 resting against the cylindrical of sight of the telescope remains truly pointed on the centering point at the muzzle of the gun. In Fig. 3 there is illustrated the manner in which the manipulation of the screws 140 will relatively move the telescope tube and its sleeve. The bore of the gun is then in a true line of collimation with the line of sight of the telescope. The telescope can then be sighted at any distant point as a target, and when so sighted the bore of the gun is in true line with the target, and the eye-piece can be focused on such distant point by sliding the tube 120 in or out until the image is sharply defined.

What I claim is:

1. A telescope comprising a tube having an objective in one end, a sleeve in the other end, an eye piece slidable in the sleeve and having cross wires, means for limiting the sliding movement of the eye piece in the sleeve, and means for supporting the telescope and laterally adjusting the same in the bore of a gun. v

2. A telescope comprising a tube provided at one end with an objective and at the opposite end with a slidable eye-piece carrying cross wires' which move with it, a sleeve adapted to surround the tube, a spherical bearing intermediate the tube and the sleeve, a cylindrical bearing on the outside of the tube arranged between the spherical-bearing and the cross wires, and adjusting means for moving the sleeve and tube relatively and in a direction transverse to their longitudinal axes.

3. A telescope comprising a tube provided at one end with an objective and at the opposite end with a slidable eye-piece carrying cross wires which move with it, a sleeve adapted to surround the tube, a spherical bearing intermediate the tube and the sleeve,

a cylindrical bearing'on the outside of the tube arranged between the spherical bearing and the cross wires, and means carried by the sleeve and adapted to coperate with the tube to move the sleeve and tube relal bearing 16 are manipulated until the line ico tively and in azone transverse to their loni gitudinal axes, and which means include adjusting screws threaded into the sleeve and impinging upon the cylindrical bearing.

4. A telescope comprising a tube provided at one end with an objective and at the opmove the sleeve and tube relatively and in posite end with a slidable eye-piece carrya. zone transverse to their longitudinal axes. 10 mg cross wires which move with it, a. sleeve In testimony whereof I affix my signature surroundin the tube, a, universal joint bein presence of two witnesses.

5 tween the eeve and tube, a. c lindrical bear- PHLIP FERBER.

ing on the outside ofthe tu e, and adjust- Witnesses: ing screws threaded onto the sleeve and im- BOWDEWINE B. VAN Smm,

pinging upon the cylindrical bearing 01'1'0 FREUND, Jr.

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