US773310A - Mining-machine. - Google Patents

Description

No. 773,310. PATENTED 001?. 25, 1904.

W. 0. WOOD & J. H. MILLER.

MINING MACHINE.

APPLIOA'TION FILED ILB. 12, 1903.

3 SHEETS-SHEET 1.

' N0 MODEL.

No. 773,310. PATENTED OCT. 25, 1904. W. 0. WOOD &-J. H. MILLER.

MINING MACHINE.

APPLICATION FILED 313.12. 1903.

N0 MODEL. 3 SHEETS-SHEET 2.

No. 773,310. PATENTED OUT. 25, 1904. w. 0. WOOD & J. H. MILLER.

- MINING MACHINE.

APPLIOATIONAI'ILED FEB. 12, 1903.

H561 No.9

29 29 5' 5-27 g Z6 v O i O 28 {Va/0. l b 3 %%2x UNITED STATES Patented October 25, 1904.

"LATENT l-EErcE.

IVILLIAM OUTTERSON WVOOD AND J OHN HENRY MILLER, OF SOUTH HETTON, ENGLAND.

.MINING-IVIACHINE.

SPECIFICATION forming part of Letters Patent No. 773,310, dated October 25, 1904.

Application filed February 12, 1903. Serial No. 143,103. (No model.)

To all whmn it may concern.-

Be it known that we, \VILLIAM OUTTERSON lVooD and JOHN HENRY MILLER, subjects of the King of England, residing at South Hetton, in the county of Durham, England, have invented new and useful Improvements in and Connected with Mining-\Iachines, of which the following is a specification.

Our invention relates toimprovements in and connected with mining-machines for holing or kirving, whereby such machines are ren-. dered more mobile, more efiicient, and more easily operated.

This invention consists particularly in rendering such a machine more mobile by providing means whereby it may be raised to any desired height above the level of the fioor, such means consisting of devices constructed on the principle of a screw lifting-jack, provided or not with wheels or casters. In connection with these raising and lowering devices a subsidiary frame or support is employed to form an additional bed-plate of a firm and solid description, such subsidiary frame being especially applicable for use when holing in dirt bands in the working.

The invention further relates to means for drilling shot-holes above the place Where the holing or kirving is being carried out; and it consists in providing a drill which is revolved by gearing from the engine of the machine, the feed of the drill being according to the forward motion of the cutter-chain, the drill being mounted on the sliding frame carrying the cutter-chain. The bearings in which the drill works may either be fixed or they may be mounted in such manner as to be capable of swiveling and of being fixed at any desired position, so that while the kirving is going on more than one shot-hole may be drilled,whereby a saving of time is effected. Finally, in order that the cuttings and debris from the under holing or drilling, or both, may be collected and conveyed away from the place where they fall in front of the machine a pneumatic conveyer is employed which has a hopper or funnel-shaped contrivance into which the cuttings fall,whence they are conducted away by a jet or jets of compressed air through a pipe to the rear of the machine, Where they are collected and carried away.

Figure 1, Sheet 1, of the accompanying drawings represents in sectional elevationa chain cutter-machine actuated by compressed air and having a drill for drilling shot-holes, part of the conveyer being also shown in section in this figure. Fig. 2 is a plan thereof. Fig. 3 is a section upon the line III III, Fig. 1, looking toward the rear of the machine, the subsidiary frame being omitted. Fig. 4 is a section on the line IV IV, Fig. 1, looking toward the rear and with the engine parts omitted for sake of clearness. Fig. 5 is an end elevation of the machine, showing a section of the cutter-chain upon the line V V, Fig. 1. Fig. 6 is an elevation of the machine provided with a modified construction of drill for making more than one shot-hole without moving the whole machine, and Fig. 7 is a front view of the same with some parts of the machine removed to render the drawing more clear. Figs. 8 and 9 are detail views of the lifting screw-jack, and Fig. 10 is a detail perspective view of the supplementary frames used for raising the machine.

The machine shown in Figs. 1 to 5 is suitably provided with a stationary principal frame or bed (0, consisting of a number of U-shaped supports 0, suitablyspaced apart and connected at their lower ends by channel or angle irons d. At their upper ends the members 0 support longitudinal beams or girders (Z, to which are fixed tooth-racks 7). The beams (Z are formed with longitudinal slots or guideways e for a platform f to slide in. ing frame, and its sides g are formed a sliding fit with the guides (2. At each side of the platform is fixed an engine it, which drivesa crank-shaft 1', supported in bearings in side The platform constitutes part of a slid-' walls or standards/r upon the platform. Upon the crank-shaft j is fixed a spur-pinion Z and a bevel-pinionm, which gear, respectively, with a spur-pinion a, fixed to a counter-shaft 0, and a bevel-pinionp, fixed upon the drillspindle q, which rotates in a sleeve-bearing q, the latter being supported in a pedestal 1", fixed to the sliding platform. A drill s is connected to the spindle r in any convenient manner and is steadied in front by a steadying block or bearing 6, supported, by means of a girder t, upon the framing (6. Upon the counter-shaft is fixed a bevel-pinion a, which gears with a bevel-wheel 2:, fixed to a vertical spindle 00, which turns in a bearing formed in a boss in on the platformf. To the lower end of the spindle w is fixed a sprocket-wheel y for driving the cutter-chain A longitudinal member or plate 1 of the sliding framework is supported at its rear end by the plate f in the following manner: A block 2 is connected with the plate 1 and is provided with a screw-hole. This block is adapted to take into a slot or opening 4:111 the plate and a rotatable but non-axially movable screw 5, mounted in the plate traversing said opening, passes through the screwhole in the block 2. By rotating the screw 5 the block 2 is moved toward one end or other of the slot at and effects the corresponding movement of the plate 1. At its forward end the plate 1 is supported in guides 3, which are fixed to a cross member of the stationary framing a, the edges of the plate 1 being suitably formed to slide in said guides, as shown in Fig. At this end the plate 1 is connected with a guide or casing 6 for the cutter-chain This easing may be provided with guide or antifriction pulleys 7 7' for the chain. Side guides or casings 8 are also provided for the chain, and these are supported from the plate 1 by transverse braces or arms 9 9. Thus it will be seen that any relative longitudinal movement of the plate 1 and its parts with the plate f will effect the tightening or slackening of the chain The forward support 0 is suitably bowed or bent out at 10, Fig. 5, to permit of the passage of the cutter-chain Side shields 80 are fixed to the stationary framing (a to protect the operators from injury by the cutter-chain.

The simultaneous feed of the drill and cutter in one direction is effected by means of a worm 11 on the intermediate shaft 0, with which worm gears a worm-wheel 12, secured to a shaft 13, adapted to revolve in a sleevebearing 1 1, mounted, by means of a pedestal 15, on the sliding plate f. This shaft 13 has atits other end a worm 16, which gears with a worm-wheel 17, mounted on the shaft 18, revolving in bearings 81 on the sliding plate f and having at each end a pinion 19, which gears with one of the racks on the principal frame 11.. It is therefore evident that when the engine-shaft 7' revolves and motion is communicated to the cutter-chain motion is also communicated to the drill .s and to the sliding frame. As, however, it is necessary that the sliding frame shall not only move forward but also backward to withdraw the cuttingchain and the drill from the hole made in the face of the same, the worm-wheel 17 is not keyed to the shaft 18, but may cause the same to revolve with it by means of a clutch 20. If, however, the clutch 20 is released from the worm-wheel 17, it follows that the latter may revolve without imparting motion to the shaft 18. For imparting motion in the opposite direction to the shaft 18 and at a greater speed than is obtained by the worm 11 and worm-wheel 12 the intermediate shaft 0 has secured thereon a bevel-wheel 21, which gears with another bevel-wheel, 22, mounted at one end of a shaft 23, revolving in a sleevebearing 24, supported in the platef, the shaft 23 having at its other end a worm 25, similar to the worm 16, above described. This worm 25 gears with a worm-wheel 26, and the latter is loose on the shaft 18, except when it is connected thereto by the clutch. 20. Consequently if the clutch 20 is in gear with the worm-wheel 17 the sliding frame with the engine, the drill, the chain cutter, and the gearing for driving the two lastnamed all move forward together; but if the clutch 20 is in gear with the wormwheel 26 they all move backward at a greater speed.

In order to raise and lower a machine of the description set forth, we apply two liftingscrews 27, arranged near the middle of the machine or about at the normal center of gravity of the whole machine. These screws work in nuts 28, fixed to the principal frame or bed a. The screws are revolved by alever 29 with a simple box spanner-head. The screw 27 is provided below with a swiveling fork 30, in which is mounted a caster or wheel 31.

For raising the machine to hole in or kirve dirt bands of varying height from the ground the machine is suitably provided with a number of underbases or supplementary frames, of which one is shown. This frame may consist of longitudinal members 32 and crossmembers 32 joined to the members 32, and may be of wood or iron. The machine is first raised and then one of the supplementary frames is pushed under the same.

A pneumatic collector and eonveyer of the cuttings and debris is also, preferably, attached to the machine. It consists of a suitable hopper or funnel 33, into which fall the cuttings or other material, which is then driven or propolled through a pipe or conduit 84}, by means of an induced current draft or blast caused by a jet of air, along the conduit into a suitable receptacle in case of narrow workings and directly into the goaf or waste in stall work. The said conduit 3% may also suitably be provided with an arrangement, such as a line spray of water 36, to lay the dust at the point of discharge.

In Fig. 1 the conveyer is shown placed to one side of the maehinein such a position that the movement of the chain tends to deliver the cuttings into the hopper 33. The continuation of the conduit 34: is indicated in dotted lines in Fig. 1 for sake of clearness. Instead of arranging the air-jet 35 near to the hopper it might with equal effect be placed near to thedelivery end of the conduit, as found most plates bolted together at a sufficient distance from each other to allow of mounting between same the spur-wheels 4:1, 4:2, and L8. Of these the spur-wheel 41 is mounted on the shaft of the bevel-wheel 7), receiving motion by the bevel-wheel m on the engine-shaft. The part 44: of the sliding or cutter frame has circular-shaped slots &5 therein, and the radial arm 40 is clamped at any desired position by means of bolts and nuts a6. The steadying-block t is also pivoted as seen in Fig. 6 and is capable of being clamped in position by means of bolts 47 to correspond with the angle of the radial bar 40.

hat we claim as our invention, and desire to secure by Letters Patent, is

l. A mining-machine comprising a stationary principal frame, asliding frame supported in guides upon the principal frame. means for supplying motive power, means for cutting and a drill, said means and said drill being all mounted on said sliding frame, a drillspindle, bearings for said drill-spindle adapt ed to swivel and to be adjusted to any position, a semicircular guideway and means for clamping said bearing in position in said guideway and a swiveling steadying-block upon the stationary frame for the drill also adapted to be pivotally adjusted to any desired position, substantially as set forth.

2. A mining-machine comprising a stationary principal frame, asliding frame supported in guides upon the principal frame. means for supplying motive power, means for cutting and a drill, said means and said drill being all mounted on said sliding frame, gearing for communicating motion from the power-supply to the drill, the cutter, and the sliding frame simultaneously; screw-jacks on the stationary frame for raising the machine and supplementaryframes adaptedto be pushed underneath the machine to support it in the raised position, substantially as set forth.

3. In a mining-machine, aprincipal frame, a sliding frame mounted in the principal frame, means to supply motive power, a cutter-chain and means for drilling, all mounted on. the sliding frame, a receptacle to receive debris made by the chain and drill and pneumatic means to convey the debris falling into the receptacle away from the machine, substantially as described.

4:. In a mining-machine, aprincipal frame, a sliding frame mounted in the principal frame, means to supply motive power, a cutter-chain and means for drilling, all mounted on the sliding frame, a receptacle beneath the chain to receive debris made by the chain and drill,

a conveyer-pipe extending from the receptacle to the 'rear of the machine, air-blast devicesdn the pipe to move the debris therethrough and a water-spray at the deliveryend of the pipe, substantially as set forth.

' In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

WILLIAM OUTTERSON WOOD.

JOHN HENRY MILLER.

Witnesses:

WALTER BoLToN, GEORGE HEA'ILEY.

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