CA897728A - Hard rock tunneling machine - Google Patents

Hard rock tunneling machine

Info

Publication number
CA897728A
CA897728A CA897728A CA897728DA CA897728A CA 897728 A CA897728 A CA 897728A CA 897728 A CA897728 A CA 897728A CA 897728D A CA897728D A CA 897728DA CA 897728 A CA897728 A CA 897728A
Authority
CA
Canada
Prior art keywords
hard rock
tunneling machine
rock tunneling
machine
hard
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
CA897728A
Inventor
Safar Frank
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.)
Smith International Inc
Original Assignee
Smith International Inc
Publication date
Application granted granted Critical
Publication of CA897728A publication Critical patent/CA897728A/en
Expired legal-status Critical Current

Links

CA897728A Hard rock tunneling machine Expired CA897728A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA897728T

Publications (1)

Publication Number Publication Date
CA897728A true CA897728A (en) 1972-04-11

Family

ID=36403640

Family Applications (1)

Application Number Title Priority Date Filing Date
CA897728A Expired CA897728A (en) Hard rock tunneling machine

Country Status (1)

Country Link
CA (1) CA897728A (en)

Similar Documents

Publication Publication Date Title
AU476593B2 (en) Mine tool
CA934774A (en) Earth boring machine
ZA702667B (en) Hard rock tunneling machine
AU467027B2 (en) Continuous rotation rock drill
CA947775A (en) Tunneling machine
CA999845A (en) Upward tunneling
CA970785A (en) Mining machine
AU474610B2 (en) Excavating machine
AU5520373A (en) Rock drills
CA985268A (en) Rock-drilling machine
CA897728A (en) Hard rock tunneling machine
SU570685A1 (en) Drilling machine
CA970764A (en) Rock drill positioning machine
CA968817A (en) Hard-rock mining machine
CA917683A (en) Tunnelling machines
CA894108A (en) Tunnelling machines
AU472838B2 (en) Rock drill
CA892560A (en) Rock crushing machines
AU463203B2 (en) Mining machine
AU478789B2 (en) Mining machine
CA904364A (en) Mining machines
CA914658A (en) Rock-drilling machine
CA912600A (en) Rotary mining tool
CA906790A (en) Drilling machines
CA893026A (en) Underground rotary drill