GB190328027A - Improvements in Opera and Field Glasses and other Binocular Telescopes - Google Patents

Improvements in Opera and Field Glasses and other Binocular Telescopes

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Publication number
GB190328027A
GB190328027A GB190328027DA GB190328027A GB 190328027 A GB190328027 A GB 190328027A GB 190328027D A GB190328027D A GB 190328027DA GB 190328027 A GB190328027 A GB 190328027A
Authority
GB
United Kingdom
Prior art keywords
focussing
opera
field glasses
bodies
bar
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
Louis Charles Maximil Balbreck
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
Application granted granted Critical
Publication of GB190328027A publication Critical patent/GB190328027A/en
Expired legal-status Critical Current

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Abstract

28,027. Balbreck, L. C. M. Dec. 21. Opera and field glasses. -Relates to means for focussing and adjusting the inter-ocular distance. Fig. 5 is a cross-section of Fig. 4. The bodies are fitted with lateral extensions b, b<1> which slide into one another, Fig. 5, and are locked at the desired extension by spring pawls. The focussing is effected by the simultaneous axial displacement of the eyepiece tubes g. This is done by the rotation of a disc k, eccentric pins j on which are connected by links i to a cross-bar h, the outer ends of which pass into holes in the lower ends of the tubes g. The body is slotted at m to allow of the motion of the ends of the bar h. The focussing- appliance is kept midway between the bodies by springs p.
GB190328027D 1903-12-21 1903-12-21 Improvements in Opera and Field Glasses and other Binocular Telescopes Expired GB190328027A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190328027T 1903-12-21

Publications (1)

Publication Number Publication Date
GB190328027A true GB190328027A (en) 1904-10-06

Family

ID=32254661

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190328027D Expired GB190328027A (en) 1903-12-21 1903-12-21 Improvements in Opera and Field Glasses and other Binocular Telescopes

Country Status (1)

Country Link
GB (1) GB190328027A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

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