CA634612A - Apparatus for jacking tunnels - Google Patents

Apparatus for jacking tunnels

Info

Publication number
CA634612A
CA634612A CA634612A CA634612DA CA634612A CA 634612 A CA634612 A CA 634612A CA 634612 A CA634612 A CA 634612A CA 634612D A CA634612D A CA 634612DA CA 634612 A CA634612 A CA 634612A
Authority
CA
Canada
Prior art keywords
tunnels
jacking
jacking tunnels
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
Application number
CA634612A
Inventor
P. Washabaugh Edward
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.)
American Marietta Co
Original Assignee
American Marietta Co
Publication date
Application granted granted Critical
Publication of CA634612A publication Critical patent/CA634612A/en
Expired legal-status Critical Current

Links

CA634612A Apparatus for jacking tunnels Expired CA634612A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA634612T

Publications (1)

Publication Number Publication Date
CA634612A true CA634612A (en) 1962-01-16

Family

ID=35890787

Family Applications (1)

Application Number Title Priority Date Filing Date
CA634612A Expired CA634612A (en) Apparatus for jacking tunnels

Country Status (1)

Country Link
CA (1) CA634612A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4647256A (en) * 1984-02-29 1987-03-03 Ed. Zublin Aktiengesellschaft Method and apparatus for producing underground pipes
US5547230A (en) * 1995-04-28 1996-08-20 The Lamson & Sessions Co. Joint for variable wall thickness conduit
US6176523B1 (en) 1997-03-12 2001-01-23 The Lamson & Sessions Co. Joint for variable wall thickness conduit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4647256A (en) * 1984-02-29 1987-03-03 Ed. Zublin Aktiengesellschaft Method and apparatus for producing underground pipes
US5547230A (en) * 1995-04-28 1996-08-20 The Lamson & Sessions Co. Joint for variable wall thickness conduit
US6176523B1 (en) 1997-03-12 2001-01-23 The Lamson & Sessions Co. Joint for variable wall thickness conduit

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