GB191516483A - Improvements in or relating to Periscopes. - Google Patents

Improvements in or relating to Periscopes.

Info

Publication number
GB191516483A
GB191516483A GB191516483DA GB191516483A GB 191516483 A GB191516483 A GB 191516483A GB 191516483D A GB191516483D A GB 191516483DA GB 191516483 A GB191516483 A GB 191516483A
Authority
GB
United Kingdom
Prior art keywords
screws
carries
compass
stem
hinged
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
Inventor
Henry Edmund Blackburn Daniell
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 GB191516483A publication Critical patent/GB191516483A/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)
  • Telescopes (AREA)
  • Accessories Of Cameras (AREA)

Abstract

16,483. Daniell, H. E. B. Nov. 22. Prismatic compasses; levelling-heads.-A portable periscope is provided with means by which a sighting-compass is hinged to or detachably supported from it. The periscope A consists of two tubes A<1>, A<2> carrying oval mirrors H, H<1> at an angle of 45 degrees in the axis of the stem. The upper tube A<1> fits over the lower and carries a lug A<3>, which engages a gap in the ring A<4> and is clamped by screws A<5>. The lower part carries a platform B hinged at B<1> to the stem and provided with screws B' to hold the compass. A spirit level K is mounted behind the mirror H<1>, a portion of the silvering of this mirror being removed in order that the bubble may be seen when taking an observation. The underside of the platform has a tubular extension C to slip over the cylindrical head D supported by a universal joint on the telescopic leg D<3>. The top of the head D is recessed to accommodate a spirit level E, and the upper end of the leg D<3> is slit and carries a clamp F, Fig. 4, serving both to lock the two telescope members together and to support two arms F<2> pivoted each about one of the screws F<3>. At their outer ends, these arms carry spikes F<4> secured thereto by screws F<5>.
GB191516483D 1915-11-22 1915-11-22 Improvements in or relating to Periscopes. Expired GB191516483A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191516483T 1915-11-22

Publications (1)

Publication Number Publication Date
GB191516483A true GB191516483A (en) 1916-11-16

Family

ID=32651526

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191516483D Expired GB191516483A (en) 1915-11-22 1915-11-22 Improvements in or relating to Periscopes.

Country Status (1)

Country Link
GB (1) GB191516483A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4504806A (en) * 1982-07-19 1985-03-12 Harris Corporation Modular beam waveguide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4504806A (en) * 1982-07-19 1985-03-12 Harris Corporation Modular beam waveguide

Similar Documents

Publication Publication Date Title
US432614A (en) Surgical apparatus
NO125258B (en)
GB191516483A (en) Improvements in or relating to Periscopes.
US928477A (en) Plumb-bob.
US714043A (en) Tripod-support.
US2054600A (en) Tripod
US1486231A (en) Periscope attachment for cameras
US1161995A (en) Observation-glass.
US973062A (en) Optical instrument.
US527640A (en) Heliograph attachment
GB190208203A (en) Improvements in, and connected with, Line-throwing Apparatus.
US690008A (en) Equatorial adapter for mine-surveying instruments.
US699300A (en) Telescope-mount.
US1215317A (en) Distance-meter.
GB147690A (en) An improved apparatus for finding latitude and longitude
US1190719A (en) Solar attachment for transits.
US313723A (en) Ication
GB125462A (en) Improvements relating to Telescopic Sights and the like.
US1128410A (en) Cross-line mounting for telescopes.
FR2294386A1 (en) Universal crosshead support for camera appts - has central telescopic pillar with stays joined by flexible strap
GB191509779A (en) Improvements in Periscopes.
GB191517355A (en) A Periscopic Telescope.
US731751A (en) Alidade or indicator for ships&#39; compasses.
GB120755A (en) Improvements in Prismatic Telemeters.
US253856A (en) elktns