GB147083A - Improvements in periscopes the ocular of which does not move in or out with the sliding tube - Google Patents

Improvements in periscopes the ocular of which does not move in or out with the sliding tube

Info

Publication number
GB147083A
GB147083A GB1909820A GB1909820A GB147083A GB 147083 A GB147083 A GB 147083A GB 1909820 A GB1909820 A GB 1909820A GB 1909820 A GB1909820 A GB 1909820A GB 147083 A GB147083 A GB 147083A
Authority
GB
United Kingdom
Prior art keywords
ocular
periscopes
move
sliding tube
tube
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
GB1909820A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB147083A publication Critical patent/GB147083A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/02—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors
    • G02B23/08—Periscopes

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Endoscopes (AREA)

Abstract

147,083. Blum, U. March 14, 1919, [Convention date]. Periscopes.-In periscopes, the ocular of which does not move in or out with the sliding tube, the rays of light emerge from the sliding tube in a downward direction and the ocular is arranged so that the descending tube may pass through the stationary part containing the ocular. To facilitate this movement, the optical parts situated in the stationary part containing the ocular are moved out of the path of the descending tube. As an example, the mirror 4, normally pressed by a spring 5 against a stop 6, is pushed by the descending tube into a recess 7, and the field lens 8 may also be folded into a recess against a spring 9.
GB1909820A 1919-03-14 1920-07-07 Improvements in periscopes the ocular of which does not move in or out with the sliding tube Expired GB147083A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE519983X 1919-03-14

Publications (1)

Publication Number Publication Date
GB147083A true GB147083A (en) 1921-01-13

Family

ID=6550756

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1909820A Expired GB147083A (en) 1919-03-14 1920-07-07 Improvements in periscopes the ocular of which does not move in or out with the sliding tube

Country Status (2)

Country Link
FR (1) FR519983A (en)
GB (1) GB147083A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4623133A (en) * 1984-01-12 1986-11-18 British Steel Corporation Clamping devices for spring assemblies

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4623133A (en) * 1984-01-12 1986-11-18 British Steel Corporation Clamping devices for spring assemblies

Also Published As

Publication number Publication date
FR519983A (en) 1921-06-18

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