GB2185333B - Optical plummet for checking vertical alignment - Google Patents

Optical plummet for checking vertical alignment

Info

Publication number: GB2185333B
Authority: GB; United Kingdom
Prior art keywords: vertical alignment; optical plummet; checking vertical; checking; plummet
Prior art date: 1985-12-24
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

Application number

GB8630826A

Other versions

GB8630826D0 (en

GB2185333A (en

Inventor

Clifford Rayner

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

NAT RES DEV

National Research Development Corp UK

Original Assignee

NAT RES DEV

National Research Development Corp UK

Priority date (The priority date 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 date listed.)

1985-12-24

Filing date

1986-12-23

Publication date

1989-11-15

1986-12-23 Application filed by NAT RES DEV, National Research Development Corp UK filed Critical NAT RES DEV

1987-02-04 Publication of GB8630826D0 publication Critical patent/GB8630826D0/en

1987-07-15 Publication of GB2185333A publication Critical patent/GB2185333A/en

1989-11-15 Application granted granted Critical

1989-11-15 Publication of GB2185333B publication Critical patent/GB2185333B/en

Status Expired legal-status Critical Current

Links

230000003287 optical effect Effects 0.000 title 1

Classifications

- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/10—Plumb lines
- G01C15/105—Optical plumbing

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
General Physics & Mathematics (AREA)
Radar, Positioning & Navigation (AREA)
Remote Sensing (AREA)
Length Measuring Devices By Optical Means (AREA)

GB8630826A 1985-12-24 1986-12-23 Optical plummet for checking vertical alignment Expired GB2185333B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB858531787A GB8531787D0 (en)	1985-12-24	1985-12-24	Plummets

Publications (3)

Publication Number	Publication Date
GB8630826D0 GB8630826D0 (en)	1987-02-04
GB2185333A GB2185333A (en)	1987-07-15
GB2185333B true GB2185333B (en)	1989-11-15

Family

ID=10590265

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
GB858531787A Pending GB8531787D0 (en)	1985-12-24	1985-12-24	Plummets
GB8630826A Expired GB2185333B (en)	1985-12-24	1986-12-23	Optical plummet for checking vertical alignment

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
GB858531787A Pending GB8531787D0 (en)	1985-12-24	1985-12-24	Plummets

Country Status (2)

Country	Link
GB (2)	GB8531787D0 (en)
WO (1)	WO1987003958A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FI20080419L (en) *	2008-06-27	2009-12-28	Kone Corp	Arrangement and method for positioning the guide wires of elevator cables
FI121977B (en) *	2009-04-07	2011-06-30	Kone Corp	Equipment and procedure for measuring an elevator shaft
CN109166330A (en) *	2018-09-13	2019-01-08	沧州职业技术学院	A kind of anti-drowned early warning system of the low-lying easy waterlogging section vehicle in city

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2054714A5 (en) *	1969-07-24	1971-05-07	Jutier Pierre
US3667849A (en) *	1969-10-28	1972-06-06	Optic Sciences Corp	Laser plummet level
US4252439A (en) *	1977-05-21	1981-02-24	Hochtief Ag Fur Hoch- Und Tiefbauten Vorm. Gebr. Helfmann	Laser alignment apparatus
GB2117511A (en) *	1982-02-19	1983-10-12	Dr Paul Derek Cook	Laser beam alignment detection
GB2195465A (en) *	1986-09-29	1988-04-07	Atomic Energy Authority Uk	Misalignment detection

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1338167A (en) *	1971-02-10	1973-11-21	Bauakademie Ddr	Optical guide beam system for locating reference points at various levels of an extensive structure
DE3308573A1 (en) *	1983-03-10	1984-09-13	Ernst Wilhelm 5180 Eschweiler Mende	Adjustment device for a structural engineering laser

1985
- 1985-12-24 GB GB858531787A patent/GB8531787D0/en active Pending
1986
- 1986-12-23 GB GB8630826A patent/GB2185333B/en not_active Expired
- 1986-12-23 WO PCT/GB1986/000793 patent/WO1987003958A1/en not_active Ceased

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2054714A5 (en) *	1969-07-24	1971-05-07	Jutier Pierre
US3667849A (en) *	1969-10-28	1972-06-06	Optic Sciences Corp	Laser plummet level
US4252439A (en) *	1977-05-21	1981-02-24	Hochtief Ag Fur Hoch- Und Tiefbauten Vorm. Gebr. Helfmann	Laser alignment apparatus
GB2117511A (en) *	1982-02-19	1983-10-12	Dr Paul Derek Cook	Laser beam alignment detection
GB2195465A (en) *	1986-09-29	1988-04-07	Atomic Energy Authority Uk	Misalignment detection

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Applied Optics, Vol.ll, No.2, Feb 1972 pp. 319-326 *

Also Published As

Publication number	Publication date
GB8630826D0 (en)	1987-02-04
GB8531787D0 (en)	1986-02-05
GB2185333A (en)	1987-07-15
WO1987003958A1 (en)	1987-07-02

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Legal Events

Date	Code	Title	Description
1992-08-19	PCNP	Patent ceased through non-payment of renewal fee