GB191110004A - Improvements in and relating to Mine Doors. - Google Patents

Improvements in and relating to Mine Doors.

Info

Publication number
GB191110004A
GB191110004A GB191110004DA GB191110004A GB 191110004 A GB191110004 A GB 191110004A GB 191110004D A GB191110004D A GB 191110004DA GB 191110004 A GB191110004 A GB 191110004A
Authority
GB
United Kingdom
Prior art keywords
doors
shafts
arms
link
door
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
Inventor
Newton Kibler Bowman
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB191110004A publication Critical patent/GB191110004A/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
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/10—Air doors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

10,004. Bowman, N. K. April 25. Operating swinging doors.- A mine door operated by a passing vehicle comprises two oppositely opening leaves 1 connected by arms 4 and link 5 so that the opening of one leaf causes the simultaneous opening of the other. A car approaching from either direction opens the doors by depressing a rail 9, which is connected by links to arms 12 on a series of rock - shafts 10. The shafts 10 are further connected together by arms 15 and links 17, and are also connected by a link 18 to a bracket 19 on one leaf of the door. The doors are closed by the combined action of a weighted lever 20 on one of the rock-shafts 10 and a spring 6 connected to the link 5 and to the fixed door frame, the arrangement being such that the leverage of the weight increases as the tension of the spring decreases, so that the effective force on the door remains about constant.
GB191110004D 1911-04-25 1911-04-25 Improvements in and relating to Mine Doors. Expired GB191110004A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191110004T 1911-04-25

Publications (1)

Publication Number Publication Date
GB191110004A true GB191110004A (en) 1911-08-03

Family

ID=32365876

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191110004D Expired GB191110004A (en) 1911-04-25 1911-04-25 Improvements in and relating to Mine Doors.

Country Status (1)

Country Link
GB (1) GB191110004A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102080563A (en) * 2010-11-27 2011-06-01 淄博矿业集团有限责任公司 Air door whistling and vehicle blocking device for mine main transportation roadway

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102080563A (en) * 2010-11-27 2011-06-01 淄博矿业集团有限责任公司 Air door whistling and vehicle blocking device for mine main transportation roadway
CN102080563B (en) * 2010-11-27 2013-01-23 淄博矿业集团有限责任公司 Air door whistling and vehicle blocking device for mine main transportation roadway

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