GB1378513A - Connection for use between mine roof support and conveyor - Google Patents

Connection for use between mine roof support and conveyor

Info

Publication number
GB1378513A
GB1378513A GB565171A GB565171A GB1378513A GB 1378513 A GB1378513 A GB 1378513A GB 565171 A GB565171 A GB 565171A GB 565171 A GB565171 A GB 565171A GB 1378513 A GB1378513 A GB 1378513A
Authority
GB
United Kingdom
Prior art keywords
jack
conveyor
advancing
tube
mine roof
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
GB565171A
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.)
Dowty Mining Equipment Ltd
Original Assignee
Dowty Mining Equipment 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
Priority to GB1333921D priority Critical patent/GB1333921A/en
Application filed by Dowty Mining Equipment Ltd filed Critical Dowty Mining Equipment Ltd
Priority to GB565171A priority patent/GB1378513A/en
Publication of GB1378513A publication Critical patent/GB1378513A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
    • E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
    • E06B7/23—Plastic, sponge rubber, or like strips or tubes
    • E06B7/2301—Plastic, sponge rubber, or like strips or tubes without an integrally formed part for fixing the edging

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Framework For Endless Conveyors (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)

Abstract

1378513 Advancing mine roof supports DOWTY MINING EQUIPMENT Ltd 1 March 1972 [1 March 1971] 5651/71 Heading E1P An advancing mine roof support having an advancing jack 18 securable to a conveyor 27 includes a second jack 31 arranged to exert (either directly or indirectly) a downward force on the conveyor 27. As shown, the advancing jack is mounted in two telescopic tubes 16, 17 with tube 16 connected to the conveyor whilst jack 31 is mounted on a bridge 9 between two floor-engaging beams and exerts pressure on tube 16. Alternatively, Figure 4 (not shown), the advancing jack may act on a tube slidable in a hollow floor-engaging beam, said tube being connected at its outer end to the conveyor and carrying at said end the second jack which reacts directly on the conveyor. Said outer end may be pivoted in a vertical plane to the rest of the tube, Figure 5 (not shown). The hydraulic supply to the second jack is automatically cut off when the advancing jack is activated.
GB565171A 1972-03-01 1972-03-01 Connection for use between mine roof support and conveyor Expired GB1378513A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1333921D GB1333921A (en) 1972-03-01 1971-04-19 Sealing windows and the like obturating members
GB565171A GB1378513A (en) 1972-03-01 1972-03-01 Connection for use between mine roof support and conveyor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB565171A GB1378513A (en) 1972-03-01 1972-03-01 Connection for use between mine roof support and conveyor

Publications (1)

Publication Number Publication Date
GB1378513A true GB1378513A (en) 1974-12-27

Family

ID=9800076

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1333921D Expired GB1333921A (en) 1972-03-01 1971-04-19 Sealing windows and the like obturating members
GB565171A Expired GB1378513A (en) 1972-03-01 1972-03-01 Connection for use between mine roof support and conveyor

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1333921D Expired GB1333921A (en) 1972-03-01 1971-04-19 Sealing windows and the like obturating members

Country Status (1)

Country Link
GB (2) GB1333921A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2448625A1 (en) * 1979-02-07 1980-09-05 Hemscheidt Maschf Hermann PUSHING APPARATUS FOR HYDRAULIC BOOM BRACKETS
FR2529614A1 (en) * 1982-07-01 1984-01-06 Gp Konstruk Mechanised retaining section.
GB2180285A (en) * 1985-08-22 1987-03-25 Oroszlanyi Szenbanyak Self advancing lifting toe support for underground longwall working

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136484B (en) * 1983-03-12 1986-04-09 Ventrolla Ltd Draught reducing methods
GB2529376A (en) * 2014-05-23 2016-02-24 Michael Peter Brian Chaplin Sealing method for mitred display case joint on an opening panel edge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2448625A1 (en) * 1979-02-07 1980-09-05 Hemscheidt Maschf Hermann PUSHING APPARATUS FOR HYDRAULIC BOOM BRACKETS
FR2529614A1 (en) * 1982-07-01 1984-01-06 Gp Konstruk Mechanised retaining section.
GB2180285A (en) * 1985-08-22 1987-03-25 Oroszlanyi Szenbanyak Self advancing lifting toe support for underground longwall working

Also Published As

Publication number Publication date
GB1333921A (en) 1973-10-17

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee