GB190328027A - Improvements in Opera and Field Glasses and other Binocular Telescopes - Google Patents
Improvements in Opera and Field Glasses and other Binocular TelescopesInfo
- 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
Links
Landscapes
- Telescopes (AREA)
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.
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)
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 |
-
1903
- 1903-12-21 GB GB190328027D patent/GB190328027A/en not_active Expired
Cited By (2)
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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