JPS53145667A - Burying accuracy measuring system for cylinder protecting tube of hydraulic elevator - Google Patents

Burying accuracy measuring system for cylinder protecting tube of hydraulic elevator

Info

Publication number
JPS53145667A
JPS53145667A JP5981977A JP5981977A JPS53145667A JP S53145667 A JPS53145667 A JP S53145667A JP 5981977 A JP5981977 A JP 5981977A JP 5981977 A JP5981977 A JP 5981977A JP S53145667 A JPS53145667 A JP S53145667A
Authority
JP
Japan
Prior art keywords
protecting tube
measuring system
burying
hydraulic elevator
accuracy measuring
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.)
Pending
Application number
JP5981977A
Other languages
Japanese (ja)
Inventor
Hideji Okabe
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP5981977A priority Critical patent/JPS53145667A/en
Publication of JPS53145667A publication Critical patent/JPS53145667A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To make it possible to highly accurately measure the burying accuracy of a cylinder protecting tube in a vertical direction during the burying opeeration by tying a loat to one end of a string which has its other end tied to a centering mechanism of the bottom of the protecting tube.
COPYRIGHT: (C)1978,JPO&Japio
JP5981977A 1977-05-25 1977-05-25 Burying accuracy measuring system for cylinder protecting tube of hydraulic elevator Pending JPS53145667A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5981977A JPS53145667A (en) 1977-05-25 1977-05-25 Burying accuracy measuring system for cylinder protecting tube of hydraulic elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5981977A JPS53145667A (en) 1977-05-25 1977-05-25 Burying accuracy measuring system for cylinder protecting tube of hydraulic elevator

Publications (1)

Publication Number Publication Date
JPS53145667A true JPS53145667A (en) 1978-12-19

Family

ID=13124204

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5981977A Pending JPS53145667A (en) 1977-05-25 1977-05-25 Burying accuracy measuring system for cylinder protecting tube of hydraulic elevator

Country Status (1)

Country Link
JP (1) JPS53145667A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5419776A (en) * 1977-07-14 1979-02-14 Taisei Corp Method of measuring accuracy of groove in method of continuous underground wall construction and its device
US4535541A (en) * 1984-03-26 1985-08-20 Colorado School Of Mines Device for measuring guide alignment for mine shafts and the like
JPS62146913U (en) * 1986-03-11 1987-09-17
JPS62266409A (en) * 1986-05-15 1987-11-19 Hitachi Elevator Eng & Serv Co Ltd Perpendicularity confirming instrument for hydraulic oil cylinder protective pipe
JP7683059B1 (en) * 2024-02-05 2025-05-26 大豊建設株式会社 Vertical accuracy measuring device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5419776A (en) * 1977-07-14 1979-02-14 Taisei Corp Method of measuring accuracy of groove in method of continuous underground wall construction and its device
US4535541A (en) * 1984-03-26 1985-08-20 Colorado School Of Mines Device for measuring guide alignment for mine shafts and the like
JPS62146913U (en) * 1986-03-11 1987-09-17
JPS62266409A (en) * 1986-05-15 1987-11-19 Hitachi Elevator Eng & Serv Co Ltd Perpendicularity confirming instrument for hydraulic oil cylinder protective pipe
JP7683059B1 (en) * 2024-02-05 2025-05-26 大豊建設株式会社 Vertical accuracy measuring device

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