US3186178A - Roof supports for mines - Google Patents

Roof supports for mines Download PDF

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Publication number
US3186178A
US3186178A US127979A US12797961A US3186178A US 3186178 A US3186178 A US 3186178A US 127979 A US127979 A US 127979A US 12797961 A US12797961 A US 12797961A US 3186178 A US3186178 A US 3186178A
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US
United States
Prior art keywords
cylinder
forwardly
roof
support
members
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 - Lifetime
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US127979A
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English (en)
Inventor
Archelaius D Allen
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.)
Gullick Ltd
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Gullick Ltd
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Filing date
Publication date
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Publication of US3186178A publication Critical patent/US3186178A/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E21D23/0073—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices with advancing shifting devices connected therewith
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/0047—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor without essential shifting devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith
    • 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
    • E21F13/08—Shifting conveyors or other transport devices from one location at the working face to another
    • E21F13/086—Armoured conveyors shifting devices

Definitions

  • a mine roof support comprising two roof supporting members movable with respect to one another in side-by-side relationship and operativelyvconnected together by pressure fiuid ram means adapted, when one".
  • said Y pressure fluid ram means including a cylinder attached to one of said members and ⁇ opposed pistons coupledY to, or engaging respectively, oppositeends of the otherjof said members.
  • the'roof supporting Y member to which the opposed pistons are connected is n relatively long4 as compared with the Vother roof support- UniteddStatS Patent N l ment-to takeplace between the :support 11 and the ram cylinder.”
  • the pistonrod'19 of therpiston 1'5 is coupled, as indil cated at'20, to a bracket 21 attached to the rear end ofthe.Y
  • the coupling 2i) is also of ar 1 flexible nature and is ,designed to provide for vertical float orrmovement between the piston rod 19 Iandthe bracket
  • the outer end of ythepistonrod Z2 of the piston ⁇ 16 passesthrough a vertical slotk 23 in abracket orlug 24 v attached to the forward end of the base 12 ⁇ of the support AV10, the piston rod beyond said bracket being formed with an enlarged head 25.
  • the arrangement pro-v Y vides for a degree of'vertical float to take place between,
  • Ports “25 and 27 are provided in the cylinder 14: for" the supply and discharge of pressure fluid for the operation of the ram-means and for a similar purpose a port 28 is provided in the piston rod 19 which is oftubular,
  • the Vsupport member 11 are i Y lowered soas to release said support member from be- 30 tween the floor and roof. Pressure fluid is then supplied to the port 27 of the ram-means and as a result the supin FIGURE 3; The hydraulieprops 13 of the .support member 11 are then extended againfso as to secure said support member between oor and roof.
  • FIGURE 1l is a plan view 'of the roof support or chock
  • FIGURES 2, 3, 4 and 5 show the sequence'in which the it and also push over the coal conveyor, Y
  • FIGURE 6 is a planview of a modification of the chock shown in FIGURE 1, and V i i Y prop or chock shown in FIGURE l. is operated to advance
  • FIGURE y7 is an elevation partly in section of the support shown in FIGURE 1., ,p
  • the chock comprises two roof supportingzmembers 10 and llrespectively in,
  • Each of said members has a or the like, may be positioned ⁇ on the upper ⁇ ends of the The props 13 of the support member 12 are then extended coal face. f
  • FIGURE 6 shows how two supports, similar to that just .A described, can.v be arranged to work together in parallel n relationship, two separate support members llbeing asf sociated with and located on either side of a singlesupport member 10. ⁇
  • two separate support members ll being asf sociated with and located on either side of a singlesupport member 10.
  • the ram-means forffwalking orf-advancing the chock towards *the coal faceand also'for pushing'overthe cons ve'yorvC ⁇ comprises a cylinder 14 and opposed pistons,- or
  • FIGURE 6 Typical advantages of the roof support above described support shownin FIGURE 6 issimilar to that already de-V scribed and likereference numeralshave been used to The arrangementfshown in IGURE 6'ca ⁇ ngbe modiiied by mounting the cylinders 1'4 on the support member 1 0 1 andfthe opposed, rams on the support membersll, the
  • lengthspofsaid support members being adjusted accord? be a central support 11 ingly. In other Words, there may with two supports .10 one on either side of it..
  • a supporti as vabove described is pt trticularly:V applicable i Y 3,185,178 n. yPatented Juneplv, 1365 ward perfectly parallel to one another.
  • a self-advancing mine roof prop comprising Ya pair of horizontally elongated, longitudinally extending roof support members, a single hydraulicforwardly advancing means connecting said members in side-by-side relation for location adjacent a forwardly positioned conveyor, said advancing means including a longitudinally extending cylinder, a pair of opposed pistons in said cylinder having forwardly and rearwardly extending rods of substantially equal length which protrude froml opposite longitudinal ends of the cylinder, said cylinder being operatively connected with one of said roof supf port members for forward longitudinal Vmovement of said one member relative to the other member and the rearwardly extending rod being operatively connected with lthe other of said roof support members for independently moving said other member longitudinally forward relative to said one member, the forwardly extending rod being guidingly supported by said other roof support member and having its forward end movable forwardly beyond said other member a selected distance corresponding to the desired forward advance of a conveyor when engaged by said end, and said pistons each being slidable in said cylinder with a stroke at
  • a self-advancing mine roof prop according to claim 1 wherein said pair of pistons are spaced apart slightly in the cylinder when both support members are secured in roof supporting condition prior to advance ofone of said members, and ports are provided in said cylinder including communicating duct means for entry of pressure fluid in front of, behind and between said slightly 5.
  • a self-advancing mine roof prop according to claim i 1 wherein said forwardly and rearwardly extendingrods are. connected to said other roof support member by means comprising vertically elongated slots and pin constructions to permit relative vertical movements of the cylinder and rods with respect to saidl other support mem-y Si ber.
  • a selffadvancing mine roof support comprising two longitudinal outer support members and a longitudinal intermediate support member between said outer support members, each of said support mem-bers having hydraulic 5V leg means for securing it between floor and roof, and
  • double actingram means connecting said members together in side-by-side relationship and for guiding and Y effecting alternate relative advancement of the outer support members and the intermediate support member when said outer support members and said intermediate support member are alternately released from between oor and roof, and for pushing over a conveyor towards the coal face
  • the intermediate suppo'tvmember having leg meansspaced longitudinally further apart than the leg means of the outer support members so that at least one leg means of each outer support memberwill be always positioned between sidewise 'projections of the legs ⁇ of the intermediate support member
  • said hydraulic ram means comprising two cylinders, means securing said cylinders respectively one to each outer support member, a pair of opposed pistons in each cylinder, said opposed pistons having rods which protr-ude forwardly and rearwardly respectively from opposite ends of their cylinder, one piston rod of each cylinder extending forwardly and vertically movably through an apertured memberron the ⁇ front end of said intermediate support member and having its forward end movable forwardly beyond said intermediate support member

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
US127979A 1960-09-09 1961-07-31 Roof supports for mines Expired - Lifetime US3186178A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB31114/60A GB934062A (en) 1960-09-09 1960-09-09 Improvements in or relating to roof supports for mines

Publications (1)

Publication Number Publication Date
US3186178A true US3186178A (en) 1965-06-01

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ID=10318181

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Application Number Title Priority Date Filing Date
US127979A Expired - Lifetime US3186178A (en) 1960-09-09 1961-07-31 Roof supports for mines

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US (1) US3186178A (fr)
BE (1) BE606966A (fr)
GB (1) GB934062A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3590586A (en) * 1968-09-05 1971-07-06 Gullick Ltd Mine roof supports

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1133099A (en) * 1964-12-07 1968-11-06 Groetschel Karl Maria Improvements relating to roof supports for mine workings

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2694293A (en) * 1953-05-08 1954-11-16 Hydrauliques Pour L Ind Minier Propping device for roofs of mine levels
GB766537A (en) * 1953-02-25 1957-01-23 Coal Industry Patents Ltd Improvements in mine roof supports
US2795935A (en) * 1952-09-30 1957-06-18 Joy Mfg Co Walking roof support
US2795934A (en) * 1952-09-30 1957-06-18 Joy Mfg Co Rotating hydraulic roof supporting jacks
FR1164448A (fr) * 1956-01-27 1958-10-09 Gewerk Eisenhuette Westfalia Soutènement mobile utilisable dans les exploitations minières
US2859022A (en) * 1955-04-04 1958-11-04 Dowty Mining Equipment Ltd Hydraulic roof supports and conveyor feed jacks
FR1184882A (fr) * 1956-10-19 1959-07-27 Eisenwerk Wanheim Gmbh Soutènement mécanisé à étançons hydrauliques groupés par groupes doubles
GB830704A (en) * 1956-10-19 1960-03-16 Rheihstahl Wanheim G M B H Improvements in mine roof supports

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2795935A (en) * 1952-09-30 1957-06-18 Joy Mfg Co Walking roof support
US2795934A (en) * 1952-09-30 1957-06-18 Joy Mfg Co Rotating hydraulic roof supporting jacks
GB766537A (en) * 1953-02-25 1957-01-23 Coal Industry Patents Ltd Improvements in mine roof supports
US2694293A (en) * 1953-05-08 1954-11-16 Hydrauliques Pour L Ind Minier Propping device for roofs of mine levels
US2859022A (en) * 1955-04-04 1958-11-04 Dowty Mining Equipment Ltd Hydraulic roof supports and conveyor feed jacks
FR1164448A (fr) * 1956-01-27 1958-10-09 Gewerk Eisenhuette Westfalia Soutènement mobile utilisable dans les exploitations minières
GB850170A (en) * 1956-01-27 1960-09-28 Gewerk Eisenhuette Westfalia Advancing roof-support apparatus for winning operations in mining work
FR1184882A (fr) * 1956-10-19 1959-07-27 Eisenwerk Wanheim Gmbh Soutènement mécanisé à étançons hydrauliques groupés par groupes doubles
GB830704A (en) * 1956-10-19 1960-03-16 Rheihstahl Wanheim G M B H Improvements in mine roof supports

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3590586A (en) * 1968-09-05 1971-07-06 Gullick Ltd Mine roof supports

Also Published As

Publication number Publication date
GB934062A (en) 1963-08-14
BE606966A (fr) 1961-12-01

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