CA1016195A - Walking beam for a horizontal earth boring machine - Google Patents

Walking beam for a horizontal earth boring machine

Info

Publication number
CA1016195A
CA1016195A CA256,100A CA256100A CA1016195A CA 1016195 A CA1016195 A CA 1016195A CA 256100 A CA256100 A CA 256100A CA 1016195 A CA1016195 A CA 1016195A
Authority
CA
Canada
Prior art keywords
walking beam
boring machine
earth boring
horizontal earth
horizontal
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
CA256,100A
Inventor
Bernard A. Century
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.)
Allied Steel and Tractor Products Inc
Original Assignee
Allied Steel and Tractor Products Inc
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
Priority claimed from US287782A external-priority patent/US3870279A/en
Application filed by Allied Steel and Tractor Products Inc filed Critical Allied Steel and Tractor Products Inc
Priority to CA256,100A priority Critical patent/CA1016195A/en
Application granted granted Critical
Publication of CA1016195A publication Critical patent/CA1016195A/en
Expired legal-status Critical Current

Links

CA256,100A 1972-09-11 1976-06-30 Walking beam for a horizontal earth boring machine Expired CA1016195A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA256,100A CA1016195A (en) 1972-09-11 1976-06-30 Walking beam for a horizontal earth boring machine

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US287782A US3870279A (en) 1972-09-11 1972-09-11 Stepper carriage advancement system
CA180,622A CA998701A (en) 1972-09-11 1973-09-10 Walking beam for a horizontal earth boring machine
CA256,100A CA1016195A (en) 1972-09-11 1976-06-30 Walking beam for a horizontal earth boring machine

Publications (1)

Publication Number Publication Date
CA1016195A true CA1016195A (en) 1977-08-23

Family

ID=27163030

Family Applications (1)

Application Number Title Priority Date Filing Date
CA256,100A Expired CA1016195A (en) 1972-09-11 1976-06-30 Walking beam for a horizontal earth boring machine

Country Status (1)

Country Link
CA (1) CA1016195A (en)

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