GB135752A - Improvements in Prism Field and Theatre Binoculars. - Google Patents

Improvements in Prism Field and Theatre Binoculars.

Info

Publication number
GB135752A
GB135752A GB1980919A GB1980919A GB135752A GB 135752 A GB135752 A GB 135752A GB 1980919 A GB1980919 A GB 1980919A GB 1980919 A GB1980919 A GB 1980919A GB 135752 A GB135752 A GB 135752A
Authority
GB
United Kingdom
Prior art keywords
main piece
bodies
eyepieces
binoculars
theatre
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
GB1980919A
Inventor
John Henry Barton
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
Priority to GB1980919A priority Critical patent/GB135752A/en
Publication of GB135752A publication Critical patent/GB135752A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/12—Adjusting pupillary distance of binocular pairs

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Telescopes (AREA)

Abstract

135,752. Barton, J. H. April 9, 1919. Field, marine, and opera glasses.-To provide for the maintenance of parallelism during the inter-ocular adjustment of prism binoculars, the bodies C are supported by a main piece A of bar or tubular cross-section and are moved equally and simultaneously inwards and outwards along this main piece by means of a pinion L engaging racks on sliding pieces B attached to the bodies, and through which the main piece slides. From a downward extension D of the main piece, and on each side thereof, extend guide-rods E sliding in the bodies to provide greater rigidity. Focusing of the eyepieces is performed from a milled head O on the central spindle L', which acts, on rotation, to raise or lower a guided bar N engaging lugs R projecting from the eyepieces.
GB1980919A 1919-08-12 1919-08-12 Improvements in Prism Field and Theatre Binoculars. Expired GB135752A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1980919A GB135752A (en) 1919-08-12 1919-08-12 Improvements in Prism Field and Theatre Binoculars.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1980919A GB135752A (en) 1919-08-12 1919-08-12 Improvements in Prism Field and Theatre Binoculars.

Publications (1)

Publication Number Publication Date
GB135752A true GB135752A (en) 1919-12-04

Family

ID=32800405

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1980919A Expired GB135752A (en) 1919-08-12 1919-08-12 Improvements in Prism Field and Theatre Binoculars.

Country Status (1)

Country Link
GB (1) GB135752A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2436574A (en) * 1945-02-14 1948-02-24 Universal Camera Corp Binocular mount
US3015252A (en) * 1960-01-28 1962-01-02 D & D Company Inc Binocular telescope focusing means
US3170024A (en) * 1958-01-07 1965-02-16 D & D Company Inc Binocular telescope with sliding lens casings and central focusing means

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2436574A (en) * 1945-02-14 1948-02-24 Universal Camera Corp Binocular mount
US3170024A (en) * 1958-01-07 1965-02-16 D & D Company Inc Binocular telescope with sliding lens casings and central focusing means
US3015252A (en) * 1960-01-28 1962-01-02 D & D Company Inc Binocular telescope focusing means

Similar Documents

Publication Publication Date Title
GB135752A (en) Improvements in Prism Field and Theatre Binoculars.
US1328962A (en) Lathe
US712113A (en) Binocular telescope.
US1341667A (en) Adjusting means for projection objectives
GB191517355A (en) A Periscopic Telescope.
FR442389A (en) Holder for optical instruments such as glasses, binoculars, etc.
GB437583A (en) Improvements in interchangeable substages for microscope condensers and the like
FR520320A (en) Grinding or polishing machine for optical glasses
GB559144A (en) Improvements in or relating to optical projection apparatus
GB190718802A (en) Improvements in Trial Frames for Sight Testing.
FR515561A (en) Installation for obtaining machined parts starting from bars
FR478859A (en) Drawer mechanism for curtains
GB151452A (en) Improvements in prismatic binocular glasses
GB191220222A (en) Improvements in Movable Hot-houses.
GB190925102A (en) Improvements in Ophthalmometers.
GB156965A (en) Improved eyepiece for telescopes
GB384612A (en) Improvements in microscopes with inclined viewing direction
GB190608484A (en) Improvements in Tables for General and Gynaecological Surgical Operations.
FR488359A (en) Enfleurage process
CH78683A (en) Exercise machine for learning typing
FR572791A (en) Process for automatic adjustment of balancing groups for DC networks with multiple voltages
FR28053E (en) Process for automatic adjustment of balancing groups for DC networks with multiple voltages
DK30315C (en) Guide screw lathe for screw cutting.
FR491912A (en) Parallel vice with table for precision work
GB111636A (en) Improvements relating to Guiding and Guarding Devices for Rolling Mills.