GB736966A - Improvements in or relating to methods and apparatus for surveying earthworks - Google Patents
Improvements in or relating to methods and apparatus for surveying earthworksInfo
- Publication number
- GB736966A GB736966A GB16156/52A GB1615652A GB736966A GB 736966 A GB736966 A GB 736966A GB 16156/52 A GB16156/52 A GB 16156/52A GB 1615652 A GB1615652 A GB 1615652A GB 736966 A GB736966 A GB 736966A
- Authority
- GB
- United Kingdom
- Prior art keywords
- light
- plane
- axis
- telescope
- photograph
- 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
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
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2407—Optical details
Landscapes
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Telescopes (AREA)
Abstract
736,966. Photographic surveying. EXPLOITATION DE PERFECTIONNEMENTS INDUSTRIELS. June 26, 1952 [July 10, 1951], No. 16156/52. Classes 97 (2) and 98 (1). [Also in Group XIX] Hollow earthworks are surveyed by photographing plane sections illuminated by light radiated as a thin flat beam in the plane or as a narrow parallel beam rotated in the plane about an axis normal to the plane. In the form shown a lamp 5 is mounted in a parabolic reflector rotatable by a handle 10 round the axis X, Y of an alidade telescope having a casing 2, current being supplied through a contact 8 sliding on a fixed contact 7. The assembly is levelled by a spirit level 11 and its axis is aligned with or parallel to that of the camera. Light from a hole 13 provides a circle on the photograph which acts as a reference to give the scale of the photograph. For alignment purposes light may be directed through the telescope from the end opposite to the camera. In another embodiment the light source is fixed and is surrounded by an annular Fresnol lens by which the whole cross-section is illuminated. Some light is directed axially for alignment purposes.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR736966X | 1951-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB736966A true GB736966A (en) | 1955-09-14 |
Family
ID=9131527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16156/52A Expired GB736966A (en) | 1951-07-10 | 1952-06-26 | Improvements in or relating to methods and apparatus for surveying earthworks |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB736966A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2510537A1 (en) * | 1975-03-11 | 1976-09-23 | Siemens Ag | Measuring distance between e.g. reference plane and tunnel wall - using rotary laser beam scanner to increase measuring points |
| US4469418A (en) * | 1981-10-27 | 1984-09-04 | B.K.S. Surveys Limited | Surveying method and apparatus |
| US5035060A (en) * | 1990-07-05 | 1991-07-30 | The United States Of America As Represented By The Secretary Of The Interior | Method of mapping underground mines |
-
1952
- 1952-06-26 GB GB16156/52A patent/GB736966A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2510537A1 (en) * | 1975-03-11 | 1976-09-23 | Siemens Ag | Measuring distance between e.g. reference plane and tunnel wall - using rotary laser beam scanner to increase measuring points |
| US4469418A (en) * | 1981-10-27 | 1984-09-04 | B.K.S. Surveys Limited | Surveying method and apparatus |
| US5035060A (en) * | 1990-07-05 | 1991-07-30 | The United States Of America As Represented By The Secretary Of The Interior | Method of mapping underground mines |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1283325A (en) | Sighting devices | |
| GB1265977A (en) | ||
| US3302016A (en) | Optical collimating system | |
| US2085498A (en) | Device and method for aerial survey | |
| GB736966A (en) | Improvements in or relating to methods and apparatus for surveying earthworks | |
| US1712147A (en) | Method of and apparatus for making projector units | |
| SE7701199L (en) | DEVICE FOR INFORMING LIGHT MARKINGS IN THE RADIATION WITH MORKERKIKARE | |
| US3229562A (en) | Optical alignment instrument | |
| US2929295A (en) | Night visibility meter | |
| GB966357A (en) | Runway light | |
| US2176910A (en) | Photographic apparatus for copying and like purposes | |
| US3286584A (en) | Illuminated double reticule collimator | |
| GB1109172A (en) | Telescopic direction-finding apparatus | |
| JPS5227646A (en) | Optical device | |
| SU121244A1 (en) | Light-signal set to the level | |
| Quayle | Photography of bullets in flight | |
| GB645619A (en) | Improvements in or relating to optical projection systems | |
| GB570022A (en) | A projection system for the inspection of internal surfaces | |
| SU50276A1 (en) | Method and device for obtaining approximately a parallax-free central projection of a spatial elevation on an image plane in a range finder | |
| GB761243A (en) | Improvements in optical gauging methods and apparatus | |
| SU601401A1 (en) | Device for inspecting well walls | |
| GB1183679A (en) | Geodetic Instrument. | |
| SU539219A1 (en) | Sight mark | |
| GB563973A (en) | Optical comparators | |
| SU140245A1 (en) | Device for illuminating measuring marks in photogrammetric devices |