GB1252181A - - Google Patents
Info
- Publication number
- GB1252181A GB1252181A GB1252181DA GB1252181A GB 1252181 A GB1252181 A GB 1252181A GB 1252181D A GB1252181D A GB 1252181DA GB 1252181 A GB1252181 A GB 1252181A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spirit
- body part
- vial
- mirror
- right angles
- 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
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
- G01C9/24—Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble
- G01C9/26—Details
- G01C9/32—Means for facilitating the observation of the position of the bubble, e.g. illuminating means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
- G01C9/24—Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble
- G01C9/34—Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble of the tubular type, i.e. for indicating the level in one direction only
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Toys (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
Abstract
1,252,181. Levels. MIRACLE INSTRUMENT CO. Jan. 28, 1969. No. 4711/69. Heading G1F. A spirit level unit comprises a body part 10 and a spirit vial part 11, the spirit vial part having a rectangular base and being formed with covered chambers, as 23, with transparent semicircular tops, the chambers accomodating two tubular spirit level vials, as 26, disposed at right angles to each other. The body part 10 has back and bottom walls 13, 18 at right angles to each other, the back wall 13 being provided with a triangular extension 15 spaced from the bottom wall 18 and serving as a support for a mirror 17 disposed at 45 degrees to the bottom wall, which is additionally provided with a raised part 19 forming with the walls 13, 18 a channel for accommodation of the spirit vial part 11. The body part 10 may be extended in plastics material and may be provided with a tapped hole for mounting the unit on a support. The spirit vial part 11 may be of transparent plastics material and is located in the body part 10 by a flange 20. The mirror 17 facilitates the viewing of the two spirit level vials.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB471169 | 1969-01-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1252181A true GB1252181A (en) | 1971-11-03 |
Family
ID=9782356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1252181D Expired GB1252181A (en) | 1969-01-28 | 1969-01-28 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1252181A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1857777B1 (en) * | 2006-05-18 | 2016-08-10 | Stanley Black & Decker, Inc. | Level, level vial and manufacturing method therefor |
GB2590371A (en) * | 2019-12-10 | 2021-06-30 | Vitec Group Plc | Spirit level for camera tripods |
-
1969
- 1969-01-28 GB GB1252181D patent/GB1252181A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1857777B1 (en) * | 2006-05-18 | 2016-08-10 | Stanley Black & Decker, Inc. | Level, level vial and manufacturing method therefor |
GB2590371A (en) * | 2019-12-10 | 2021-06-30 | Vitec Group Plc | Spirit level for camera tripods |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |