US133900A - Improvement in machines for mining coal - Google Patents

Improvement in machines for mining coal Download PDF

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US133900A
US133900A US133900DA US133900A US 133900 A US133900 A US 133900A US 133900D A US133900D A US 133900DA US 133900 A US133900 A US 133900A
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drill
cylinder
machines
improvement
coal
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • E21B7/025—Rock drills, i.e. jumbo drills

Definitions

  • HATHERLY SPEAR or PORTLAND
  • MAINE 'ASSIGNOR or ONE-THIRD Hrs RIGHT TO JOHN 0.
  • ROBINSON or BLACK ROCK, connncrrcur.
  • My invention has for its object to provide for general use a coal-mining machine operated by compressed air; and to this end it consists in combining a sliding'drill with a compressed-a1r cylinder, and in mounting both drill and cylinder upon an adjustable frame, so that the former can be adjusted horlzontally and vertically to operate at any necessary angle, as I will now proceed code-- scribe.
  • A represents 1 a suitable platform-car, upon which is pivoted an upright or center post, B, in such a manner as to turn freely.
  • B upon which is pivoted an upright or center post, B, in such a manner as to turn freely.
  • the upright in the form of a cone, provided at its base with a segmental rack, O, to en gage with a pinion or lantern wheel, D,
  • the upright is further provided with two side pieces, I, extending above its apex or top, to receive the trunnions g of the drillframe or sides H H, which carry the drill and compressed-air cylinder P.
  • the latter is firmly secured midway between the sides H, and the drill I passes longitudinally through ltscenter, being guided by the ends of the sides H, which are bent so as to form short tubes or guide-rings, as shown.
  • hoWe ver,-the sides may be omitted, the drill being guided whollyby the cylinder, and the latter provided with the trunnions g.
  • J are springs coiled spirally around the drill at each end of the cylinder, one end of each being secured to the cylinder and the opposite end to the drill.-
  • the compressed air is conducted into the top of the cylinder, at about the center thereof, by means of a pipe, K, connected to a suitable compressor.
  • the compressed air is let into the cylinder against the front end thereof, and a suitable piston mounted upon the drill a little in rear of the air-induction port.
  • the pressurevof the air moves the piston and drill backward against the tension of the spring J until the piston reaches the rear end of the cylinder, when the air is exhausted from the latter, or its pressure relieved in any suitable manner, and the springs J drive the drill forward with great force against the coal.
  • the pressure of the air upon the piston may be relieved in any convenient manner, either in the cylinder or supply-pipe. Instead of driving the drill by the springs, and moving it back by the compressed air, this arrangement may be reversed, so that the compressed air shall drive the drill forward and the springs retract it.
  • L is a segmental rack secured to one of the sides, H, at or near its lower edge, in such a position as to engage with a lantern-wheel or pinion, M, the shaft of which has its bearings in the side pieces I.
  • the drill By operating the hand-wheel 0 upon the shaft, the drill is swung vertically upon its trunnions to adjust the angle at which it shall operate against the coal.
  • the operation of the hand-wheel E adjusts the angle of the drillhorizontally withrespect to the car or truck upon which it is mounted, as will be readidy understood.
  • jnstable spring-drill is adapted to operate di- 4.
  • the drill-frame H H In combination with the pivoted ups rectly through at compressed-air cylinder, subright B, the spring-drill, and the compressedstantially as herein described, for the purpose air cylinder P, the drill-frame H H, substanspecifivd. tially as described, for the purpose specified.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Description

H. SPEAR.
Machine for Mining Coal.
No. 133,900. I Pat ented De 16,1872.
. mmordumosmpum cowxmsaomvz s P500585.)
UNrrEnSTATEs PATENT QFFICE. w.
HATHERLY SPEAR, or PORTLAND, MAINE, 'ASSIGNOR or ONE-THIRD Hrs RIGHT TO JOHN 0. ROBINSON, or BLACK ROCK, connncrrcur.
IM'PRQVEMENQT IN MACHINES'FOR MINING COAL.
Specification forming part of Letters Patent No. 133,900, dated December 10, 1872.
and exact description ofthe same, reference being had to the accompanying drawing forming part of this specification, in which Figure l is a top-plan view of myimproved machine; Fig. 2 is a perspective view of the same; and Fig. 3, an end elevation.
Similar letters of reference in the accompaing drawing indicate-the same parts.
My invention has for its object to provide for general use a coal-mining machine operated by compressed air; and to this end it consists in combining a sliding'drill with a compressed-a1r cylinder, and in mounting both drill and cylinder upon an adjustable frame, so that the former can be adjusted horlzontally and vertically to operate at any necessary angle, as I will now proceed code-- scribe.
ln theaccompanying drawing, A represents 1 a suitable platform-car, upon which is pivoted an upright or center post, B, in such a manner as to turn freely. .I prefer to construct the upright in the form of a cone, provided at its base with a segmental rack, O, to en gage with a pinion or lantern wheel, D,
mounted in a suitable frame beside the upright, and operated by a hand-wheel, E, as shown. The upright is further provided with two side pieces, I, extending above its apex or top, to receive the trunnions g of the drillframe or sides H H, which carry the drill and compressed-air cylinder P. The latter is firmly secured midway between the sides H, and the drill I passes longitudinally through ltscenter, being guided by the ends of the sides H, which are bent so as to form short tubes or guide-rings, as shown. If desired, hoWe ver,-the sides may be omitted, the drill being guided whollyby the cylinder, and the latter provided with the trunnions g. J are springs coiled spirally around the drill at each end of the cylinder, one end of each being secured to the cylinder and the opposite end to the drill.- The compressed air is conducted into the top of the cylinder, at about the center thereof, by means of a pipe, K, connected to a suitable compressor.
When the drill is to be operated, the compressed air is let into the cylinder against the front end thereof, and a suitable piston mounted upon the drill a little in rear of the air-induction port. The pressurevof the air moves the piston and drill backward against the tension of the spring J until the piston reaches the rear end of the cylinder, when the air is exhausted from the latter, or its pressure relieved in any suitable manner, and the springs J drive the drill forward with great force against the coal.
The pressure of the air upon the piston may be relieved in any convenient manner, either in the cylinder or supply-pipe. Instead of driving the drill by the springs, and moving it back by the compressed air, this arrangement may be reversed, so that the compressed air shall drive the drill forward and the springs retract it.
L is a segmental rack secured to one of the sides, H, at or near its lower edge, in such a position as to engage with a lantern-wheel or pinion, M, the shaft of which has its bearings in the side pieces I.
By operating the hand-wheel 0 upon the shaft, the drill is swung vertically upon its trunnions to adjust the angle at which it shall operate against the coal.
The operation of the hand-wheel E adjusts the angle of the drillhorizontally withrespect to the car or truck upon which it is mounted, as will be readidy understood.
Having thus described my invention, what vI claim is- 1. A coal-mining machine in which the drill is operated by springs and compressed air, and adapted for horizontal and vertical adjustment, substantially as described, for the purpose specified.
2. A coal-mining machine in which an ad.-
jnstable spring-drill is adapted to operate di- 4. In combination with the pivoted ups rectly through at compressed-air cylinder, subright B, the spring-drill, and the compressedstantially as herein described, for the purpose air cylinder P, the drill-frame H H, substanspecifivd. tially as described, for the purpose specified.
3. The combination of the springs J and HATHERLY SPEAR. drill l with the compressed-air cylinder, sub- 7 Witnesses: stmitia-lly as described, for the purpose'specii JOHN E. Dow,
tied. f
NATHAN CLEAVES.
US133900D Improvement in machines for mining coal Expired - Lifetime US133900A (en)

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