PT90063A - Three-dimensional surveying instrument - uses plumb bob to define gravity reference and longitude and latitude scales on spheroidal surface for measuring angles - Google Patents
Three-dimensional surveying instrument - uses plumb bob to define gravity reference and longitude and latitude scales on spheroidal surface for measuring anglesInfo
- Publication number
- PT90063A PT90063A PT9006389A PT9006389A PT90063A PT 90063 A PT90063 A PT 90063A PT 9006389 A PT9006389 A PT 9006389A PT 9006389 A PT9006389 A PT 9006389A PT 90063 A PT90063 A PT 90063A
- Authority
- PT
- Portugal
- Prior art keywords
- longitude
- plumb bob
- rod
- latitude
- scales
- Prior art date
Links
Landscapes
- Details Of Measuring And Other Instruments (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
A hemi-spherical member (4) is marked with lines of latitude (41) and longitude (42) and a triangular tip (431) is disposed at the top of the member to provide a reference point. A plumb bob (46) is mounted by a threaded hole (461) to a rod (442) disposed centrally of an axially-disposed sleeve (44). A rod (45) which passes through the sleeve is formed at either end with pyramidal tips (451,451') for engagement with concave internal surfaces (as 51) of a two-part spheroidal shell (5,5'). Holes (52,52') in the surface of the spheroidal shell are engaged by tips (541) of racks (54) which are L-shaped and engage in a respective hole (62,62') in the base member (6). The axes of the racks are aligned along a Z-axis of a three axis system of which the rod supporting the plumb bob (46) defines the Yaxis and the axial rod (442) defines the X axis. The latitude and longitude scales on the spheroidal scales represent the angles in three dimensional space. (Provisional basic advised week 88/49).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT9006389A PT90063B (en) | 1989-03-21 | 1989-03-21 | 3-DIMENSIONS, MULTIANGULAR, VERTICAL AND HORIZONTAL SCALING AGRICULTURE INSTRUMENT |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT9006389A PT90063B (en) | 1989-03-21 | 1989-03-21 | 3-DIMENSIONS, MULTIANGULAR, VERTICAL AND HORIZONTAL SCALING AGRICULTURE INSTRUMENT |
Publications (2)
Publication Number | Publication Date |
---|---|
PT90063A true PT90063A (en) | 1990-11-07 |
PT90063B PT90063B (en) | 1995-08-09 |
Family
ID=20084442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT9006389A PT90063B (en) | 1989-03-21 | 1989-03-21 | 3-DIMENSIONS, MULTIANGULAR, VERTICAL AND HORIZONTAL SCALING AGRICULTURE INSTRUMENT |
Country Status (1)
Country | Link |
---|---|
PT (1) | PT90063B (en) |
-
1989
- 1989-03-21 PT PT9006389A patent/PT90063B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
PT90063B (en) | 1995-08-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG3A | Patent granted, date of granting |
Effective date: 19950404 |
|
MM3A | Annulment or lapse |
Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 19981031 |