US1857376A - Mining machine - Google Patents

Mining machine Download PDF

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Publication number
US1857376A
US1857376A US442313A US44231330A US1857376A US 1857376 A US1857376 A US 1857376A US 442313 A US442313 A US 442313A US 44231330 A US44231330 A US 44231330A US 1857376 A US1857376 A US 1857376A
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US
United States
Prior art keywords
bar
sections
jib
cutter
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
Application number
US442313A
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English (en)
Inventor
Hoy Austin Young
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.)
Sullivan Machinery Co
Original Assignee
Sullivan Machinery Co
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 Sullivan Machinery Co filed Critical Sullivan Machinery Co
Application granted granted Critical
Publication of US1857376A publication Critical patent/US1857376A/en
Anticipated expiration legal-status Critical
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/22—Machines slitting solely by one or more cutter chains moving unidirectionally along jibs
    • E21C25/28—Chains or chain guides
    • E21C25/30—Chain guides

Definitions

  • This invention is for improvements in or relating to mining machines (more particularly to long-wall mining machines) of the type comprising a main section containing the power unit and a jibj whichis mounted on the main section for swinging movement in a horizontal plane and has an endless chain, carrying picks or cutters mounted thereon,and adapted to be traversed round the margin of the jib which is formed with a channel to receive and guide the cutter chain.
  • a jibj whichis mounted on the main section for swinging movement in a horizontal plane and has an endless chain, carrying picks or cutters mounted thereon,and adapted to be traversed round the margin of the jib which is formed with a channel to receive and guide the cutter chain.
  • wearing er faces of the longitudinal beams have'been made renewable by means of thin metal lining plates, the channelitself being T shaped with the cross bar of the T inwards and lying vertically.
  • Suchconstructions have the advantage that all wearingsurfaces are renewable, but they are undoubtedly expensive to construct and one object to provide a jib of more robust construction and less expensive to manufacture than heretofore.
  • Another object is to provide a jib of such a construction that the cutterchain channel may be easily machined and that wear at the bearing surfaces may readily be taken up when required.
  • This invention accordingly provides in or I for a mining machine of the type described a jib which is constructed in two longitudinal sections riveted or otherwise joined together withthe joint face lying in a horizontal plane through the cutter-chain channel.
  • the two-longitudinal sectionsof the jib are substantiallyidentical, the joint face1befaces of thechain channel, that is; to say, the inner faces of the gibs and the outof this invention is- Of a swmging movement each section of the jib is sufficiently robust not to give rise to excessive warpingduring OFFICE E coolingafter casting, this point is of particular importance in casting steel, of terial the jib is preferably made.
  • Figure 3 is a section upon an nlarged sca-le taken on :the-line- 3,3 in Figure 1,
  • the jib which is indicated generally by the numeral 10 in tion lland abottom section 12, which-see tions are interchangeable and are madeof tion like reference plan viewof the jib accordjib according to this invention is ap;
  • Figure 6 comprises a top sec-
  • the construction of the ,jib in two halves permits the wearing surfaces of the T-"shaped channel, and particularly the cross bar 18 of the T which is engaged by projections upon the links of the cutter-chain, to be machined with comparative ease,'and without any expensive machine-tool layout.
  • Local contact faces between the two sections of the jib are provided at suitable intervals, the rivets 13 passing through these contacting faces.
  • the shims may be om1tted an adjustment provided by machining or scraping down the contacting faces. It will be observed that thejoint face between the two sections of the jib is centralwithin the cutter-chain channel.
  • the .jib is slidably mounted upon the hanger 14 and the adjustment the following manner Clamped between the two halves 11 and 12 of the jib are two bearing blocks 20 and 21 each provided with a semi-circular channel, the two blocks embracing the shank of an adjusting screw 22. Axial movement of this adjusting screw with respectto the ib is sch effected in vented by a collar 23 and the head 24 of the screw. The. head is piercedwith two holes at right angles to each otherto take a tommy bar and lies within an aperture 25 pierced completely through. both sections of the jib.
  • the end of the screw 22 is I gages a screwed member 26 which is rig dly fixed, for example byimeans of pins, withln a cylindrical bore in the hanger.
  • a jib which is slidably mounted upon a support for adjusting the cutter chain, having a cutter-chain channel around its periphery and comprising two longitudinal sections with the joint face between them lying in a horizontal plane through the cutter chain channel, and removable shims interposed botweenthe. two sections, said sections each having a :guideway adapted for slidable attachment to the support. 7
  • a jib which is slidably mounted upon a support for adjusting the cutter chain, comprising two identical longitudinal sectionsa'with the division between them substantially horizontal, a cutter chain channel extending along two opposed sides and in arcuate form around one end of the jib, the bearing surfaces'of which channel are formed in the two sections of thejib, and removable shims interposed betweenthe two sections at. the division, said sections each having a guideway adapted for slidable attachment to the support.
  • municating arcuate end grooves said grooves when said members are united forming a cutter chain guiding channel extending along the sides and completely around the tip end of said bar and said members each having a-guideway adapted for slidable attachment to the support.
  • a mining machine cutter bar which is slidably mounted upon a hanger support for adjusting the cutter chain, com-prising afpair of symmetrical members disposed in face to face relationship to form the main body of the bar, said members having elongated parallel grooves at their opposite sides and communicating arcuate end grooves, said grooves when said membersare united forming a cutter chain guiding channelextending along the sides and completely around the tip end of said bar, and each'symmetrical member having a guide for reception in guideways onthe hanger support.
  • a mining machine cutter bar which is slidably mounted upon a support for adjustcommunicating arcuate ing the cutter chain, comprising a pair of symmetrical members forming the main body of the bar, said members having elongated parallel grooves at their opposite sides'and end grooves, said grooves when said members are united forming a cutter chain guiding channel extending along the sides and completely around the tip end of said bar, said symmetrical members having joint faces lying in a between the outside plane surfaces of said members and said members each having a guideway adapted for slidable attachment to the support.
  • a mining machine cutter bar which is slidably mounted upon a support for adjusting the cutter chain, comprising a pair of symmetrical members disposed in a face to face relationship to form the main body of the bar, said members having elongated parallel grooves at their opposite sides and communicating arcuate end grooves,.said grooves when said members are united forming a cutter chain guiding channel extending along the sides and completely around the tip end of said bar, and means for effecting adjust ment of said symmetrical members relative to each other to vary the width of said outter chain guiding channel and said members each having a guideway adapted for slidable attachment to the support.
  • a mining machine cutter bar which is' slidably mounted upon a support for adjusting the cutter chain, symmetrical members disposed in a face to face relationship to form the main body of the bar, said members having elongated parallel grooves at their opposite sides and communicating arcuate end grooves, said grooves when said members are united forming a cutter chain guiding channel extending along the sides and completely around the tip end of said bar, said symmetrical members having contacting faces, and removable means between said faces for effecting adjustment of said members relative to each other to vary the width of said cutter chain guiding channel and said members each having a guideway adapted for slidable attachment to the support.
  • a mining machine cutter bar comprising a pair of symmetrical members disposed in face to face relationship to form the main body of the bar, said members each having a portion to cooperate with a hanger support, a hanger support, and means for effecting adjustment of said members relative to said hanger support.
  • mining machine cutter bar comprising a pair of symmetrical members disposed in face to face relationship to form themain body of the bar, said members having elongated parallel grooves at their opposite sides and communicating arcuateend grooves, said grooves when sa1d members are united formplane midway comprising a pair of inga cutter chain guiding channel extending along'the sidesand completely around the tip end of said bar, said symmetrical members having a portion. disposed at theend remote from said tip end ofthe bar to cooperate with a hanger support, a hanger support, and means betweensaid members and said hanger support for effecting adjustment of said members relative thereto.
  • a mining machine cutter bar which-is slidably mounted upon a support for adjusting the cutter chain, comprising two major sections forming the main body of the bar and having elongated parallel sides and a curved end, said sections having plane surfaces formingthe top and bottom surfaces of the bar and joined together in a plane parallel to said surfaces and midway therebetween, said sections each havinga groove extending along its sides and completely around the curved end, saidgrooves when said sections are united forming a cutter chain guiding channel and said sections each having a guideway adapted for slidable attachment to the support; a v
  • a mining machine cutter bar comprising two major sections forming the main body of the bar and having elongated paral-V lel sides and a curved end and communicating openings, said sections having plane surfaces forming the top and bottom surfaces of the bar and havingfaces contacting in a plane parallelto and midway between said surfaces, a hanger support, and means for of fecting movement of said sections longitudi; nally relative to said hanger support comprising manually operable means including an element receivable in the openings in said sections.
  • a mining machine cutter bar comprising two major sections forming the-main body of the bar and having elongated parallel sides and a curved end and communicating openings, said sections having plane surfaces forming the top and bottom surfaces of the bar and having faces contacting in a plane parallel to and midway between said surfaces, said sections having elongated parallel grooves ⁇ at their opposite sidesandcommunia cat-ing arcuate end grooves, said grooves when said sections are united forming a cutter chain guiding'channel extending along the sides and'completely around the tip end of said bar, a hanger support, and means for effecting movement of said sections longitudinally relative to said hanger support comprising manually operable means including an element receivable in the openings in said sections. 7 l r 13.
  • a cutter bar which is slidably mounted upon a hanger for adjusting the cutter chain. characterized in that the slidable cutter bar consists of two identical cast steel sections which are j oined together in the central horizontal plane through the cutter chain.
  • a cutter ha] constructed in accord ance with claim 13 wherein means including an adjusting screw is providedfor adjusting the bar relative to the hanger and the two sections form the bearing for the head of the adjusting screw.

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  • 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)
  • Forklifts And Lifting Vehicles (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
US442313A 1929-08-07 1930-04-07 Mining machine Expired - Lifetime US1857376A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1857376X 1929-08-07

Publications (1)

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US1857376A true US1857376A (en) 1932-05-10

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DE (1) DE567669C (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2533572A (en) * 1946-09-25 1950-12-12 Frank L Fulke Mining machine
US2730347A (en) * 1952-10-31 1956-01-10 Cincinnati Mine Machinery Co Cutter bar construction and adjustment therefor
US2743917A (en) * 1952-11-04 1956-05-01 Cincinnati Mine Machinery Co Socket-mounted cutter bit and set screw arrangement
US2937015A (en) * 1957-04-09 1960-05-17 Mavor & Coulson Ltd Cutter bar tensioning means

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2356805A1 (fr) * 1976-06-29 1978-01-27 Charbonnages De France Bras de sciage ou de havage
DE2806828C2 (de) * 1978-02-17 1982-11-11 Maschinenfabrik Korfmann Gmbh, 5810 Witten Führung für Schrämketten

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2533572A (en) * 1946-09-25 1950-12-12 Frank L Fulke Mining machine
US2730347A (en) * 1952-10-31 1956-01-10 Cincinnati Mine Machinery Co Cutter bar construction and adjustment therefor
US2743917A (en) * 1952-11-04 1956-05-01 Cincinnati Mine Machinery Co Socket-mounted cutter bit and set screw arrangement
US2937015A (en) * 1957-04-09 1960-05-17 Mavor & Coulson Ltd Cutter bar tensioning means

Also Published As

Publication number Publication date
DE567669C (de) 1933-01-07

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