GB190506166A - An Improved Centre-marking Apparatus for use with Plumbing Instruments - Google Patents
An Improved Centre-marking Apparatus for use with Plumbing InstrumentsInfo
- Publication number
- GB190506166A GB190506166A GB190506166DA GB190506166A GB 190506166 A GB190506166 A GB 190506166A GB 190506166D A GB190506166D A GB 190506166DA GB 190506166 A GB190506166 A GB 190506166A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plumbing
- instruments
- centre
- marking apparatus
- ground
- 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
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
6166. Tallack, H. T. March 23. Plumbing-instruments; surveying- instruments.-A device for marking on the ground, or on a post or plate let into the ground, a point which is exactly beneath a position plumbed by a plumb bob, nadir telescope, or other instrument comprises a rigid base A, with levelling screws B and levels C, C', and sliding frames D, E, the inner one E carrying the socket H of a spring centre punch I. To mark the position, the frames D, E are adjusted by screws F, G, until the centre of cross-lines on the top of the punch is beneath the plumbbob or in the line of collimation of an opticil plumbing-instrument.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190506166T | 1905-03-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190506166A true GB190506166A (en) | 1905-12-21 |
Family
ID=32629392
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190506166D Expired GB190506166A (en) | 1905-03-23 | 1905-03-23 | An Improved Centre-marking Apparatus for use with Plumbing Instruments |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190506166A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2621416A (en) * | 1947-04-16 | 1952-12-16 | Perfect Circle Corp | Cylinder bore contour gauge |
-
1905
- 1905-03-23 GB GB190506166D patent/GB190506166A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2621416A (en) * | 1947-04-16 | 1952-12-16 | Perfect Circle Corp | Cylinder bore contour gauge |
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