CA998630A - Millhole chute structure - Google Patents

Millhole chute structure

Info

Publication number
CA998630A
CA998630A CA211,999A CA211999A CA998630A CA 998630 A CA998630 A CA 998630A CA 211999 A CA211999 A CA 211999A CA 998630 A CA998630 A CA 998630A
Authority
CA
Canada
Prior art keywords
millhole
chute structure
chute
millhole chute
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
CA211,999A
Other versions
CA211999S (en
Inventor
Dennis F. Heffernan
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.)
ALSTEEL FABRICATIONS (SUDBURY) Ltd
Original Assignee
ALSTEEL FABRICATIONS (SUDBURY) 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 ALSTEEL FABRICATIONS (SUDBURY) Ltd filed Critical ALSTEEL FABRICATIONS (SUDBURY) Ltd
Priority to CA211,999A priority Critical patent/CA998630A/en
Application granted granted Critical
Publication of CA998630A publication Critical patent/CA998630A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F13/00—Transport specially adapted to underground conditions
    • E21F13/04—Transport of mined material in gravity inclines; in staple or inclined shafts
    • E21F13/045—Bunkers specially adapted for mining purposes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
CA211,999A 1974-10-22 1974-10-22 Millhole chute structure Expired CA998630A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA211,999A CA998630A (en) 1974-10-22 1974-10-22 Millhole chute structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA211,999A CA998630A (en) 1974-10-22 1974-10-22 Millhole chute structure

Publications (1)

Publication Number Publication Date
CA998630A true CA998630A (en) 1976-10-19

Family

ID=4101429

Family Applications (1)

Application Number Title Priority Date Filing Date
CA211,999A Expired CA998630A (en) 1974-10-22 1974-10-22 Millhole chute structure

Country Status (1)

Country Link
CA (1) CA998630A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4178110A (en) * 1977-10-03 1979-12-11 Cobbs James H Liner for large diameter borehole

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4178110A (en) * 1977-10-03 1979-12-11 Cobbs James H Liner for large diameter borehole

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