GB1306995A - Curvature indication in gun barrels - Google Patents

Curvature indication in gun barrels

Info

Publication number
GB1306995A
GB1306995A GB1934570A GB1934570A GB1306995A GB 1306995 A GB1306995 A GB 1306995A GB 1934570 A GB1934570 A GB 1934570A GB 1934570 A GB1934570 A GB 1934570A GB 1306995 A GB1306995 A GB 1306995A
Authority
GB
United Kingdom
Prior art keywords
detector
barrel
curvature
april
indicator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1934570A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saab Bofors AB
Original Assignee
Bofors AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bofors AB filed Critical Bofors AB
Publication of GB1306995A publication Critical patent/GB1306995A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G3/00—Aiming or laying means
    • F41G3/12—Aiming or laying means with means for compensating for muzzle velocity or powder temperature with means for compensating for gun vibrations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G3/00—Aiming or laying means
    • F41G3/32—Devices for testing or checking
    • F41G3/323—Devices for testing or checking for checking the angle between the muzzle axis of the gun and a reference axis, e.g. the axis of the associated sighting device

Abstract

1306995 Indicating curvature of gun barrel BOFORS AB 22 April 1970 [22 April 1969] 19345/70 Heading F3C A gun barrel 3 is provided with a source 5 of a narrow beam of light fixed relative to its rear end and a reflecting means 4 rigidly fixed to its muzzle end. The beam is projected on to the reflecting means 4 and passes to a means e.g. a detector 6 and indicator 7, fixed relative to the rear end of the barrel which means indicates the magnitude and direction of any curvature occurring in the barrel 3. In the construction shown the detector 6 and indicator 7 are integral and take the form of a prism (Fig. 4, not shown) and a calibrated plate (Fig. 3, not shown) respectively. The detector may be in the form of a number of photoconductive elements or if infra-red or ultra-violet wavelength are used for the beam of light a coating of phosphor material is provided on the rear face of the detector prism.
GB1934570A 1969-04-22 1970-04-22 Curvature indication in gun barrels Expired GB1306995A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE05713/69A SE325494B (en) 1969-04-22 1969-04-22

Publications (1)

Publication Number Publication Date
GB1306995A true GB1306995A (en) 1973-02-14

Family

ID=20267053

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1934570A Expired GB1306995A (en) 1969-04-22 1970-04-22 Curvature indication in gun barrels

Country Status (7)

Country Link
US (1) US3684383A (en)
CH (1) CH514830A (en)
DE (1) DE2016797A1 (en)
FR (1) FR2045524A5 (en)
GB (1) GB1306995A (en)
NO (1) NO124893B (en)
SE (1) SE325494B (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3989384A (en) * 1975-05-30 1976-11-02 The United States Of America As Represented By The Secretary Of The Army System for measuring small angular motions
GB1587714A (en) * 1976-03-16 1981-04-08 Secr Defence Correcton of gun sighting errors
US4020739A (en) * 1976-07-16 1977-05-03 The United States Of America As Represented By The Secretary Of The Army Fire control system
US4346643A (en) * 1979-12-07 1982-08-31 Hughes Aircraft Company Thermal jacket for elongated structures
DE2951108C2 (en) * 1979-12-19 1983-11-17 Krauss-Maffei AG, 8000 München Method and device for checking the synchronization of the line of sight of a periscope with elements that can be aimed at target points
GB2069105A (en) * 1980-02-09 1981-08-19 Marconi Co Ltd Guns
FR2491611A1 (en) * 1980-10-03 1982-04-09 France Etat Shock-resistant weapon sight - includes gyroscopically stabilised mirror and angular position sensor indicating movements of optical system
FR2504668A1 (en) * 1981-04-24 1982-10-29 France Etat METHOD AND DEVICE FOR SUBJECTING A WEAPON TO A RIFLE SCOPE
FR2505477B1 (en) * 1981-05-08 1985-06-14 France Etat METHOD AND DEVICE FOR HARMONIZING THE AXES OF A WEAPON AND A SIGHT
GB2119069B (en) * 1982-04-17 1985-10-16 Marconi Co Ltd Improvements in or relating to guns
DE3219916A1 (en) * 1982-05-27 1983-12-01 Wegmann & Co GmbH, 3500 Kassel METHOD AND DEVICE FOR CHECKING CONTINUOUS DIFFERENCE BETWEEN AN OPTICAL SIGHTING DEVICE AND A DEVICE POINTABLE TO TARGET POINTS, IN PARTICULAR A WEAPON
US4760770A (en) * 1982-11-17 1988-08-02 Barr & Stroud Limited Fire control systems
CA1223652A (en) * 1983-04-29 1987-06-30 Raymond Carbonneau Gun muzzle reference system
US4662727A (en) * 1983-08-01 1987-05-05 Hughes Aircraft Company Two-axis optical inertial system using a gyro rotor as a stable reference
NL8402659A (en) * 1984-08-31 1986-03-17 Optische Ind De Oude Delft Nv METHOD AND APPARATUS FOR JUSTING THE SIMILARITY OF A VISOR DEVICE AND A SWIVEL ORGAN.
GB8429201D0 (en) * 1984-11-19 1984-12-27 Secr Defence Alignment aid
FR2584489B1 (en) * 1985-07-08 1990-06-08 Bertin & Cie DEVICE FOR CONTROLLING THE GEOMETRY OF A MECHANICAL STRUCTURE.
DE3623455C3 (en) * 1986-07-11 1994-07-07 Krauss Maffei Ag Optical visor
DE3707443A1 (en) * 1987-03-07 1988-09-15 Zeiss Carl Fa FIELD ADJUSTMENT FOR THERMAL IMAGING DEVICES
NL8701074A (en) * 1987-05-07 1988-12-01 Optische Ind De Oude Delft Nv MEASURING DEVICE.
GB9503485D0 (en) * 1995-02-22 1995-04-12 Pilkington Perkin Elmer Ltd Displacement measurement apparatus and method
US7124676B1 (en) * 2005-06-07 2006-10-24 Princeton Scientific Instruments Muzzle reference system
US8826583B2 (en) 2012-06-27 2014-09-09 Trackingpoint, Inc. System for automatically aligning a rifle scope to a rifle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE298497C (en) * 1916-04-27 1916-12-21
US2405441A (en) * 1943-12-16 1946-08-06 Gen Motors Corp Gun sighting device
US2864280A (en) * 1956-04-04 1958-12-16 William E Keller Device for inspecting the straightness of bores
US2952779A (en) * 1958-10-29 1960-09-13 Robert M Talley Missile gyro alignment system

Also Published As

Publication number Publication date
NO124893B (en) 1972-06-19
CH514830A (en) 1971-10-31
DE2016797A1 (en) 1972-01-05
US3684383A (en) 1972-08-15
SE325494B (en) 1970-06-29
FR2045524A5 (en) 1971-02-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees