GB818872A - Range-finder sights - Google Patents

Range-finder sights

Info

Publication number
GB818872A
GB818872A GB25508/55A GB2550855A GB818872A GB 818872 A GB818872 A GB 818872A GB 25508/55 A GB25508/55 A GB 25508/55A GB 2550855 A GB2550855 A GB 2550855A GB 818872 A GB818872 A GB 818872A
Authority
GB
United Kingdom
Prior art keywords
deviator
images
finder
range
proper relationship
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
GB25508/55A
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.)
BEACONING OPTICAL AND PREC MAT
Original Assignee
BEACONING OPTICAL AND PREC MAT
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 BEACONING OPTICAL AND PREC MAT filed Critical BEACONING OPTICAL AND PREC MAT
Publication of GB818872A publication Critical patent/GB818872A/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
    • F41G3/06—Aiming or laying means with rangefinder

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Telescopes (AREA)

Abstract

818,872. Range-finder sights. BEACONING OPTICAL & PRECISION MATERIALS CO. Ltd. Sept. 6, 1955 [Sept. 30, 1954], No, 25508/55. Drawings to Specification. Class 97(1) [Also in Group XXI] A range-finder sight in which the parallel angle is determined by bringing into proper relationship the two images of a target formed each by one of two beams of light from the target and entering each one of a pair of spaced windows and the tangent elevation angle of the barrel of a firing weapon to which the rangefinder sight is clamped is automatically obtained by bringing the said two images into proper relationship, is rendered suitable to cater for variations in the ballistic curve of the weapon by the addition of an adjustable optical deviator placed in part of one of said two light beams and means to adjust the deviator so as to deflect the light beam in the plane of the instrument base and thereby deliberately change the parallax angle so that a new sighting of the instrument is needed to bring the two images into proper relationship. The deviator may be in form of a rotatable wedge or a pair of contra-rotatable wedges and its drive may be graduated in terms of the factor which causes the ballistic curve to change. The rangefinder sight may be of any one of the types described in Specifications 738,504 and 772,658 and in Canadian Specification 549,249.
GB25508/55A 1954-09-30 1955-09-06 Range-finder sights Expired GB818872A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA818872X 1954-09-30

Publications (1)

Publication Number Publication Date
GB818872A true GB818872A (en) 1959-08-26

Family

ID=4172575

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25508/55A Expired GB818872A (en) 1954-09-30 1955-09-06 Range-finder sights

Country Status (1)

Country Link
GB (1) GB818872A (en)

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