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US2554210A - Support of workings in underground development - Google Patents

Support of workings in underground development Download PDF

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Publication number
US2554210A
US2554210A US15364A US1536448A US2554210A US 2554210 A US2554210 A US 2554210A US 15364 A US15364 A US 15364A US 1536448 A US1536448 A US 1536448A US 2554210 A US2554210 A US 2554210A
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US
United States
Prior art keywords
supporting
links
roof
link
chain
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
Application number
US15364A
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English (en)
Inventor
Pierre Emile Alfred
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
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Filing date
Publication date
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Publication of US2554210A publication Critical patent/US2554210A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/02—Cantilever extension or similar protecting devices
    • E21D17/08—Cap joints for obtaining a coal-face free of pit-props
    • E21D17/086—Cap joints for obtaining a coal-face free of pit-props or articulated type

Definitions

  • the supportingv device eliminates; these variousawkwardl pointsin ⁇ itsnessential features: it isfmadeup of a ser-iesv of support Lmembers.- hinged -togetherf like links of: a chain. and incorporating locking: meansA that l enable each one of them to be xed rigidly with the member ahead: so, that.. it may,V fit.' againstY the roof".
  • Cinv the caving side;othercorrespondingflinks are unclamped. inI advancerexcept tlie Jonenearest to r the f propv and whenV caving tak'esgplace ltheselinks swing ⁇ and; stay hangingi throughtheirfli'inges withoutanyidanger. .of being-cauglit'inftheicaved?y ground; f
  • the links thusef-reed'- after caving ⁇ may bedisi-v connected from the neighboring linksV in a very" simple manner, either one by: one; or in sets and joinedup tothe-idleilinks in front of the ⁇ work# ing face-so as'tobe put imposition as soon as they areA- wanted,
  • the hingev joint connecting two neighboring links will be thereforepreferably"ofI asimple pattern so' thaty these linking members mayf-bevtaken apart and putup again without any trouble by; ordinaryunderground labor.
  • the supportingilinks show' a male'en'ollv and a female end planned toengage're-V spectively with" the female" and'- male ⁇ ends' of paired-*links
  • Twosetslof support-links alsdmay be provided: the former containing two male ends' and the '-lattertwo female ends;
  • the links include locking parts,vfor' instance a hole andfa keyintheshape ofia wedge; arranged' sothat their upperfbearing; surface may'either' b'elocated in the pl'aneof':thebearing'surface of" the1 neighboring link; or* form with' the latter; above or'below; a large enough angle; say'5V forA instance; to talize-theshapeV ofI the'corrugations ofv'the roof "without the necessityof insertingany intermediarypacking.
  • the supporting link members areconneetedtoeach-otherl sod as to" form anv endless' the Lrea-r links to Aconnect them up with.' the A links'vk hanging infront of' the working' face; assumesv naturally enough that there' is suicient play in D ytlie hinges so as-to enable the loose' side4 of ⁇ the chain of links to move aside.- from the ⁇ vertical planeaud to pass' laterally of fthe prop.
  • Fig. 1 is an elevational view of a supporting link according to the invention.
  • Fig. 2 is a plan view.
  • Fig. 3 is a section of it through line III-III of Fig. 1.
  • Fig. 4 is a section through line IV-IV of Fig. 1.
  • Fig. 5 is a section through line V-V of Fig. 1.
  • Fig. 6 is a section through line VI--VI of Fig. 1.
  • Figs. '7 and 8 show respectively in elevation and plan views two support links locked in the alignment with one another.
  • Fig. 9 shows in quite a diagrammatic way a timbering layout eifected by means of a chain of supporting links in accordance with the inven;
  • the support link illustrated in Figs. 1 to 6 is made up of a main body having an I shaped cross section (Fig. 5) and formed by a web I I provided in its upper portion with two symmetrical flanges IIb showing housings or hollowed out parts I2 planned to take projections rigid with the head of the prop.
  • the main web or body II is extended at one of its ends by a web I3 and at its opposite end by a yoke I4 strengthened by an outer flange Md joined up with the iianges IIa and IIb of the main body and planned to take between its arms the end of the terminal web I3 of the paired link. rlhe two arms of the yoke are connected at their lower end, that assumes the shape shown in Fig. 1, by a spindle I5.
  • the malel terminal web I3 of the supporting link forms on the other hand, a lower hook 2l adapted to engage the spindle I5 carried by the yoke ofthe paired link and a wedge-shaped opening of suitable direction of taper capable of being positioned between and in register with the openings I and I'I of said yoke.
  • a cross strengtheningflange I3'b connects up with the flanges IIa and IIb.
  • Figs. 7 and 8 show in elevation and plan views two supporting links SI j S2 similar to the one disclosed already and hinged together by means of the spindle I5 of link SI and the ⁇ hook 2I of element S2.
  • wedge C that can take any intermediate position between positions C1 and C2 shown in dots and dashes in Fig. 8. In these two end positions the upper flanges Ila of the link S2 form with the corresponding portion of link S1 an angle of 5 directed either lupwardly or downwardly. It will b e understood that this latitude of wedging will enable in practice the support to be directly fitted against the. roof notwithstanding esses ofthe latter.
  • Fig-9 shows in quite a diagrammatic way a working fitted up with a supporting device in accordance with the invention andformed in this particular example by a chain of eleven links S1 toA S11.
  • the links Ss-Sm fixed rigidly by keys constitute a continuous support carried by props E1,.E2.
  • On the carving side F hang the two links S1 and S2 that, after being unkeyed, lhave swung down at the time of carving,- while a link S11 hangs in front of the working face F1 close to which appears the removal carriage A. All that the miner has to do is to release the hinge spindle of the link S2 on the link S'a and to hinge on link S11 the link S1, thus freed and forming a unit with link S2. And so on step by step.
  • the locking is effected by a key or lthe uneven It will be advisable, of course, to hold up the support system thus formed by a fresh prop that will be set ahead of the prop Ez when the length of the overhang will be close to the safety limit.
  • the supporting links according to the invention and as shown in the accompanying drawings have a length of 35 cm. and a chain made up of six locked links with a length of about 2 meters carries an overhung load in the nature of four tons.
  • a roof supporting system for a mine and the like working having a floor, a roof and a wall forming a working face, said support system including a continuous chain of connected supporting links for supporting the roof; a prop disposed on the floor at a selected distance from the wall and wedging at least one of the supporting links above the same against the roof; and locking means engaging the links which are located between the prop and said wall independently of the connections between said supporting links for holding the latter rigidly together in supporting position beneath said roof.
  • a roof supporting system for a mine and the like working having a floor, a roof and a wall forming a working face, said support system including a continuous chain of connected supporting links for supporting the roof; a prop disposed on the floor at a selected distance from the wall and wedging at least one of the supporting links above the same against the roof; and plural locking means engaging the links which are located between the prop and said wall independently 'of the connections between said supporting links for holding the latter rigidly together in supporting position beneath said roof, said locking means being individually insertible into each mutually adjacent pair of supporting links one by one in order to allow the chain comprising said supporting links to be progressively extended into supporting contact with said roof upon suiicient space becoming available between the foremost supporting link in'said chain and said wall.
  • a roof supporting system for a mine and the like working having a iloor, a roof and a wall forming a working face, said support system including a plurality of male and female supporting links in which each link has an integral narrow male end and an opposite integral open female end; means for pivotally connecting the male ends of the supporting links to the female ends of the respectively adjacent supporting links to form a connected chain; removable means for engaging and locking any selected pair of adjacent supporting links rigidly together in addition to and independently of the pivotal con.
  • a roof supporting system for a mine andthe like working having a floor, a roof and a wall forming a working face, said support system in'- cluding a plurality of supporting links; means for pivotally interconnecting the latter to form aconnected chain; one or more props disposed on'the same supporting. links; and locking pins ⁇ for en gagingjin theregistering apertures; in any; tvvo adjacent connected links in order to secure the latteriosether to for-1n e Substantially: rigid unit" bearing against said roof.
  • a roof supporting, system f or like working having a floor, a roof and a Wall forming a Working face, said supportsystem in@ cluding a plurality of connected supporting links forming a chain; a prop disposed on thel floor at a selected distance from. the Wall and vil/,edging at least one ofthe supporting links above the; saine against the roof y; each link comprising avertical web; a flange substantially perpendicular to the Web and integral with the upper portion thereof and normally engaging against said roof; ashoe. integral with thel lower portion of the. web; disposed. in a position to be .engagedV by tremano-r; the Drop?
  • each adjacent pair of supporting links pivot Inerribers pivotally; interconnecting ythe overlapping ends-s of. said supporting links; and additional transfverse members individually engaging simultar neously with any selected adjacent pair o f said supporting links and locking. the latter. intofar substantially rigid unit bearing against said-roof.
  • vA roof supporting system for a minerandi the like Working having a floor, ⁇ a roof and a Wall forming a working face, said supportl system in-v cluding. a plurality of connected supporting links, forming a chain; a prop disposed o n the iloortat,
  • each link comprising a verticalr Web; a flange substantiallyperpendicular to 'the web andlintegraljwi'th theupper portion thereof and normally engaging against said roof; a shoe integral with thelowerportion of the web dis-- posed in a position to be engaged by the head of the prop; an integral male connecting member disposed at one end of each supporting link and a corresponding integral female connecting means disposed at the other end thereof; pivot means integral with the female connecting means on each supporting link and a corresponding integral ⁇ pivoting engagement portion extending upon the male connecting member on each supporting link in effective position to pivotally engage and connect with the pivot means of the female connecting means on the next adjacent supporting link in the chain; and a plurality of securing means for independently and individually securing any selected pair of adjacent supporting links into a substantially rigid serial succession of links forming a unit
  • a roof supporting system for a mine and the like Working having a floor, a roof and a Wall forming a Working face, said support system including a plurality of connected supporting links forming a chain; a prop disposed on the floor at a selected distance from the Wall and Wedging at least one of the supporting links above the same against the roof; each link comprising a vertical Web; a flange substantially perpendicular to the transverse bearingaperturesupon ⁇ each supporting linkand the male connecting member on web and intergal with thel upper portion thereof and normally engaging against said roofs a shoe integral with the. lower portion of the web dis. posed in a position to be engaged by the head of, the. prop.; an integral4 male connecting meme.
  • a roof supporting system for a mine and the like working having a floor, a roof and a wall forming a working face, said support system including a plurality of connected supporting links forming a chain; a prop disposed on the floor at a selected distance from the Wall and Wedging at least one of the supporting links above the same against the roof; each link comprising a vertical web; a flange substantially perpendicular to the web and integral with the upper portion thereof and normally engaging against said roof; a shoe integral With the lower portion of the web disposed in a position to be engaged by the head of the prop; a substantially flat integral extension upon one end of each supporting link and a corresponding oppo site forked yextension on the other end of each 7 link normally engaged by the flat extension'of the next adjacent supporting link; means piv-l otally connecting the forked extensions upon the supporting links with the flat extensions on the respectively adjacent supporting links toV connect them in a series to form thechain;V and a plurality of securing means for independently and individually securing any
  • a roof supporting system for a mine and the like working having a oor, a roof and a Wall forming a working face, said support system including a plurality of connected supporting links forming a chain; a prop disposed on the floor at a selected distance from the wall and wedging at least one of the supporting links above the same against the roof; each link comprising a vertical web;- a iiange substantially perpendicular to the web and integral with the upper portion thereof and normally engaging against said roof; a shoe integral with the lower portion of the web having transverse recesses;
  • a roof support system for mining and like galleries having a floor, a roof and a wall forming a working face, including a supporting chain for supporting the roof and having means for supporting said chain against said roof, said supporting chain including a seriesv of similar supporting links, each of which supporting links comprises a main body of I-shaped intermediate cross-section and terminating in a bifurcated or double extension at one end thereof and terminating at the other end in a single Web-shaped extension normally engaging between the two limbs of the bifurcated extension of the next adjacent supporting link in the chain; a transversely disposed spindle rigid with one extension and a transversely disposed hooked cradle rigid with the other extension for rockably engaging and connecting with the spindle on the corresponding extension on the next adjacent link, the bifurcated extension on the one end of each supporting link having a pair of transversely aligned apertures in the two limbs thereof of suitable tapered form of receiving a transverse wedge therethrough and the single Wedge-shaped extension on the other end of the supporting link
  • a roof supporting system for a mine and the like having a floor and a roof, said support system including a chain of connected supporting links for supporting said roof; at least one prop adapted to be placed on said floor so as t0 wedge at least one of said supporting links of said chain against said roof; and a plurality of locking means each adapted to hold a pair of consecutive supporting links rigidly together in supporting position beneath said roof.
  • a roof supporting system for a mine and the like having a floor and a roof, said support system including a plurality of supporting links for supporting said roof adapted to be connected in series; at least one prop adapted to be placed on said cor so as to wedge at least one of said supporting links against said roof; and a plurality of locking means each adapted to hold a pair of consecutive supporting links rigidly together in supporting position beneath said roof when said links are connected in series.

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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)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Tents Or Canopies (AREA)
  • Load-Engaging Elements For Cranes (AREA)
US15364A 1947-03-20 1948-03-17 Support of workings in underground development Expired - Lifetime US2554210A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR652701X 1947-03-20

Publications (1)

Publication Number Publication Date
US2554210A true US2554210A (en) 1951-05-22

Family

ID=9005391

Family Applications (1)

Application Number Title Priority Date Filing Date
US15364A Expired - Lifetime US2554210A (en) 1947-03-20 1948-03-17 Support of workings in underground development

Country Status (6)

Country Link
US (1) US2554210A (de)
BE (1) BE481299A (de)
DE (1) DE808581C (de)
FR (4) FR58703E (de)
GB (1) GB652701A (de)
NL (1) NL68832C (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2650475A (en) * 1948-07-30 1953-09-01 Gerlach Karl Mine supporting structure
US2729945A (en) * 1949-03-09 1956-01-10 Gerlach Karl Mine filling frame structure comprising props and pivotally connected girders
US2749712A (en) * 1949-11-25 1956-06-12 Gerlach Karl Mine supporting structure for working mines
US2991097A (en) * 1948-07-08 1961-07-04 Vanwersch Aloys Connecting structure for beams of a roof support or the like

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1130143A (fr) * 1955-07-27 1957-01-31 Rallonge articulée pour supports de mines
US3107902A (en) * 1958-12-29 1963-10-22 Joy Mfg Co Method of supporting mine roofs and supporting means therefor
DE1169881B (de) * 1960-09-09 1964-05-14 Hermann Schwarz Kommanditgesel In der Laengsrichtung in mehrere im wesentlichen gleiche Stuecke aufgeteilte Kappe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2991097A (en) * 1948-07-08 1961-07-04 Vanwersch Aloys Connecting structure for beams of a roof support or the like
US2650475A (en) * 1948-07-30 1953-09-01 Gerlach Karl Mine supporting structure
US2729945A (en) * 1949-03-09 1956-01-10 Gerlach Karl Mine filling frame structure comprising props and pivotally connected girders
US2749712A (en) * 1949-11-25 1956-06-12 Gerlach Karl Mine supporting structure for working mines

Also Published As

Publication number Publication date
FR58581E (fr) 1954-01-27
GB652701A (en) 1951-05-02
FR58703E (fr) 1954-03-22
DE808581C (de) 1951-07-16
NL68832C (de)
BE481299A (de)
FR960300A (de) 1950-04-15
FR59723E (fr) 1954-07-16

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