US1662800A - Mining machine - Google Patents

Mining machine Download PDF

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Publication number
US1662800A
US1662800A US153676A US15367626A US1662800A US 1662800 A US1662800 A US 1662800A US 153676 A US153676 A US 153676A US 15367626 A US15367626 A US 15367626A US 1662800 A US1662800 A US 1662800A
Authority
US
United States
Prior art keywords
jib
cuttings
machine
frame
kerf
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
US153676A
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English (en)
Inventor
Rimmer Gilbert
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 US1662800A publication Critical patent/US1662800A/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
    • 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
    • E21C25/50—Machines slitting solely by one or more cutter chains moving unidirectionally along jibs with equipment for cleaning the slit

Definitions

  • Thisinvention relates to mining machines, such as coal-cutting machines, particularly of the jib-and-chain type in which an endless chain carrying picks or cutting tools is 5 mounted to travel round the margin of a pivoted jib.
  • the invention is however also applicable to mining machines-[of the disc type in which the cutting tools are carried at the circumference of a rotatable disc.
  • the cutting tools remove a large proportion (upwards of 60%) of the cuttings from the cut or holing and consequently when a horizontal out has been made there is a tendency for the roofto sink down on to the floor and close the gap'made by the passage of the machine.
  • the uncontrolled collapse of the roof is undesirable and it is the object of this invention to provide means for ensuring against the sinking of the roof after a cutting operation.
  • a mining machine of the jib-andchain type or of the disc type means for re.- turn'ing the cuttings, or a substantial proportion of the cuttings, removed from the cut or holing at the leading face of the jib or disc into the cut in rear of the following face of the jib or disc.
  • the cuttings which are returned into the cut provide a support for the roof and prevent it collapsing completely on to the floor.
  • the invention vprovides a guide-wall to extend round the heel of the jib or a portion of the disc and thereby form a compartment arranged at one end to receive the cuttings removed at the leading face of the machine and at the other end to direct said cuttings back into the cut or holing;
  • the aforesaid guide-wall is provided at one or at each end with an adjustable extension piece by means of which the effective length of the wall may be varied.
  • Figure 1 is a plan view (to some extent 158,676, and in Great Britain August 6, 1926. I
  • F igure 2 is an elevation (partly in section at the line 22, Figure 8) showing the 5 guide-plate attachment at the jib end of'the machine
  • v I Figure 3 is a plan view of the attachment shown in Figure 2.
  • the attachmen't provided by the invention comprises a curved guide-plate 5 which is secured to the machine frame 6, at the jib end thereof.
  • the plate 5 is of approxi-- mately semi-circular shape and is arranged to surround the cutter-chain 7 where the lat- 7 'ter'passesroundthe sprocket (not shown) the inner end of the jiband back into the out.
  • the cutter-chain 7 acts like a conveyor. to move the cuttings through the enclosure aforesaid.
  • the upper portion of the guide-plate 5 is attached by rivets 9 to the vertical flange of'a right-angled bracket 10, the horizontal flange of which is bolted to the machine frame 6.
  • the jib 7 may be locked in any one of three alternative positions (i. e. in line with the longitudinal axis of the machine, or at right angles thereto on the right or left of the machine) by the insertion of a locking pin in one of three holes 11, 1 2,13 provided in the jib end of the machine frame.
  • the locking-pin (not shown) is inserted in the hole 11.
  • two locking-pin holes 12 and 13 which are not required for the purpose of locating the jib are employed to receive bolts l i for securing the horizontal flange of the bracket 10 to the underside of the, machine frame 6.
  • the locking-pin holes are of larger diameter'than the bolts 14, and in orderto locate the bolts centrally in theholes, bushings- 15 are employed.
  • the guide-plate 5 is provided at each end" with an adjustable extension-piece 16 for the purpose'of varying the effective length of the plate and so varying the'control imposed by the plate on the cuttings.
  • the extension piece 16, which is a plate having the same radius of curvature as the main guide-plate 5, is mounted to slide on the outer face of thelatter.
  • the extension-piece 16 islocated on the main plate 5 by means of rivets 17, the stem portions of which pass through an elongated slot 18 in the extension-piece.
  • the slot 18 accommodates sliding move ment of the extension-piece in the direction of the length of the main plate 5, and the extension-piece may be locked in any desired position of adjustment by means of a tapered pin 19 or like device inserted through one of a series of apertures 20 in the extensionpiece and through registering apertures in the plate 5 and the vertical flange of the bracket 10.
  • a tapered pin 19 or like device inserted through one of a series of apertures 20 in the extensionpiece and through registering apertures in the plate 5 and the vertical flange of the bracket 10.
  • the adjustable extension-pieces 16 In Figure 3, one of these extensionpieces is shown in section, for the sake of clearness.
  • a bottom engaging frame a motor thereon, cutting mechanism actuated by said motor including a cutting member of the jib and chain type adapted to cut a horizontal kerf in the mine wall, and a guide wall supported on said frame and extending around the heel of the jib and forming a compartment arrangedat one end to receive the cuttings removed at theleading face of the jib and at the other end to direct said cuttings back into the kerf in rear of the following face of the .jib.
  • a motor thereon, cutting mechanism actuated by the motor including a cutting member which in operation removes the cuttings from the kerf at the leading face of said member, and a guide wall supported on said frame and extending around a portion of the cutting member aforesaid and forming a compartment arranged at one end to receive cuttings removed as aforesaid at the leadingface of the member and at the other end to direct said cuttings back into the kerf.
  • a mining machine of thetype whose frame is slidable on its bottom on the mine floor

Landscapes

  • 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)
  • Component Parts Of Construction Machinery (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
US153676A 1926-08-06 1926-12-09 Mining machine Expired - Lifetime US1662800A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19518/26A GB272356A (en) 1926-08-06 1926-08-06 Improvements in or relating to mining machines

Publications (1)

Publication Number Publication Date
US1662800A true US1662800A (en) 1928-03-13

Family

ID=10130725

Family Applications (1)

Application Number Title Priority Date Filing Date
US153676A Expired - Lifetime US1662800A (en) 1926-08-06 1926-12-09 Mining machine

Country Status (4)

Country Link
US (1) US1662800A (enrdf_load_stackoverflow)
BE (1) BE337647A (enrdf_load_stackoverflow)
DE (1) DE468563C (enrdf_load_stackoverflow)
GB (1) GB272356A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
GB272356A (en) 1927-06-16
BE337647A (enrdf_load_stackoverflow)
DE468563C (de) 1928-11-15

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