US1517707A - Tub or truck hoist for collieries - Google Patents

Description

1,51 'IJU? F. M. CASTLEMA N TU IE! OR TRUCK HOIST FOR COLLIERIES Filed May 22 1922 Sheets-Sheet 1 INVENTOR L7. 4140M BY a: $2 Z u. ATTORNEY 15mm? Ff. 'CASTLEMAN K TUB OR TRUCK HOIST FOR COLLIERIES File y 22, 1922 s Sheets-Sheet 2 ATTORNEY Patented Dec. 2, .1924.

fum'reo STATES PATENT OFFICE.

. FRANK M. OASTLEMAN, 'OF ROIHEBHAM, ENGLAND, ASSIGNOB, BY MESNE ASSIGN- HENTS, TO THE UNION SWITCH d; SIGNAL COMPANY, OF SWISSV'ALE, PENNSYL- VANIA, A CORPORATION 01' PENNSYLVANIA.

TUB OR TRUCK HOIST FOR OOLLIERIES.

Application me May 22, 1922. serial 110. 562,928.

To all wit-om it may concern:

Be it known that I, .FRANK MASTERS OASTLEMAN, a subject of the King of Great Britain, residing at Rotherham, in the county of Yorkshire, England, have invented certain new and useful Improvements in Tub or Truck Hoists for Collieries, of which the following is'a specification.

This invention relates to tub or truck hoists for colli'eries, and more particularly to hoists of this character employed for the transference of tubs or trucks to or from the superposed stages or decks of an elevator cage or decking plant having a number of decks or stages arranged vertically one above another.

The invention has for its'object to provide an improved construction of tub hoist of this character which shall enable the tubs or trucks to be safely and economically transported to or from any deck or stage of the elevator cage or decking plant and in Figure 1 is a view in side elevation of a pithead decking plant comprising a tub or truck hoist constructed in accordance with one form of the invention.

Figure 2 being a plan view thereof. Figure 3 is a view in end elevation showing a tub hoist provided with transporting mechanism embodying the invention.

Figure 4. being a plan 'view thereof, and Figures 5 and 6 arev views corresponding to a portion of Figure 3 and to Figure 4 respectively illustrating a modified arrangement.

Referring now to the drawings it will be seen that in all the constructions shown the improved tub hoist comprises a vertical frame work or staging 1 composed of steel girders or channel irons and provided with upper and lower horizontal shafts 2 3, respectively, mounted in suitable bearings in the frame-work 1. Each of the upper shafts 2 is provided with a number of pulleys or chain wheels 4 each adapted to co-operate With a corresponding pulley or chain wheel 5 carried on the lower shaft 3 in the same vertical plane, by means of an endless rope or chain 6 passing over each pair of pulleys moral to enable a tub or truck to be trans- 7 to be raised or lowered thus effecting their transference from one level to another.

Referringnow to the form of tub hoist shown in Figures 1 and 2 it will be seen that the frame-work or staging 1 of the hoist is arranged to be supported upon a number of wheels or rollers 8*adapted to run on track rails 9 arran ed at right angles to the direction in which the tubs or trucks 7 enter or leave the hoist. The latter is thus capable of a transverse movement along its track rails 9 so as to bring the entrance to the hoist opposite any one of a number of different tracks 10, 11 at the same level along which the tubs or trucks approach or leave the hoist. For instance, in the case of a hoist adapted to effect the transference of empty tubs from a number of superposed decks at the pithead to a similar number of decks 12, 13 in an elevator cage 141-, each of these decks being capable of accommodating two trucks side b side with one another upon different sets 0 track rails at the same level, thetub hoist may first be set in a position opposite one of these sets of track rails such as track 11, and the tubs 7 caused to enter the hoist and thence transferredto the corresponding superposed decks 13 on the elevator cage 14:. The tub. hoist may then be moved transversely so as to be 0 posite the superposed decks 10 of the pithead decking and the decks or stages 12 of the elevator cage 14 may then be filled with trucks in the same manner, it being understood that the several tubs are transferred to the elevator cage 14 by means of the power operated rams indicated at 15, or other arrangements provided for this purose.

p The transverse movement of the tub hoist above referred to is preferably efi'ected by means of a pneumatic or hydraulic ram 16 provided with controlling valves for determining the supply of fluid under pressure to the ram 16 so as to effect and control the transverse, movement as will be readily understood without further explanation.

. be seen that the arrangements for effecting Referring now to Figures and 4 it will a vertical movement of the tubs 7 within the hoist consist of a number of brackets 17 secured to the chains 6 at suitable intervals along their length, these intervals necessarily corresponding to the distances separating the superposed stages 10, 11, and 12, 13, of the decking plant and elevator cage 14. Each of the brackets 17 is provided with a pair of rollers 18 pivotally mounted at the ends of the bracket. On the inner or rising side of each of the chains 6 the rollers 18 provided on the brackets 17 are arranged to engage with vertical guides 19 secured to the frame-work 1 of the hoist so as to maintain the brackets 17 truly vertical during their upward movement. Each of the brackets 17 is provided with an inwardly projecting arm 20 on the free end of which is mounted an angle iron 21 cross-connecting the several brackets 17 at the same level of the chains 6 mounted on the same pair 2, 3, of horizontal shafts at one side of the hoist. The corresponding brackets 17 on the chains 6 at the other side of the hoist are provided with similar arms 20 projecting towards the brackets 17 on the other chains, and also carrying angle irons 21 cross-connecting the several brackets at the same level secured to the chains 6 at the other side of the hoist. The horizontal distances separating the angle irons 21 carried by the brackets 17 on the two chains 6 on opposite sides of the hoist are each arranged to be egual to the gauge of the tubs or trucks 7 so that each tub or truck is supported on a air of angle irons 21 constituting track ralls in the cen-- tral portion of the hoist and is thus carried upwards by the rotation of the upper and lower horizontal shafts 2, 3.

The chains 6 are secured to the brackets 17 at an intermediate point in the length of the brackets 17 preferably the point at which the projecting arms 20 are secured and it will be seen that the brackets 17 after passing upwards within the hoist from the ower shafts 3 to the upper shafts 2 pass over the chain wheels 4 mounted on these latter shafts and, reversed in position, descend on the outer sides of the-chains| 6 at the two sides of the hoist. Each of the lower horizontal shafts 3 is provided with a worm wheel 22 rigidly secured thereto at one end thereof, a traversely arranged driving shaft 23 carrying at suitable points in its length corresponding worms 24 being provided, each of the worms 24 being adapted to engage with the worm wheel 22 on one of the lower horizontal shafts 3. The driving shaft 23 is arranged to be rotated through suitable worm wheel reduction gearing 25 by an electric motor 26 provided with a magnetic clutch device 27, the. two sets of worm wheel mechanisms 22, 24 and 25 constituting a speedcreduction gearing whereby the nor-' mal speed of rotation of the drivm motor 26 is suitably reduced before transmlssion to the lower horizontal shafts 3. The latter are each provided with a pawl 28 and ratchet wheel 29 for preventing any rotation of the shafts 3 in the reverse direction.

In the modified construction shown in Figures 5 and 6 the lower horizontal shafts 3 are arranged to be operated by means of fluid pressure, a double acting cylinder 30 containing a piston being provided at the base of the hoist. The piston rods 31, 32 extend through either end of the cylinder 30 and carry horizontal racks 33, 34. Rack 33 is adapted to engage with a suitable pinion 35 loosely mounted on the end of one of the horizontal shafts 3. The pinion 35 is provided with a projecting arm 36 carrying a pawl 37 at its outer end, the pawl 37 being adapted to engage with the teeth of a ratchet wheel 38 rigidly secured to the hori zontal shaft 3, so that the reciprocation of the piston rod 31 causes the arm 36 carrying the pawl 37 to perform an oscillating movement through a predetermined arc, thus affecting a step by step movement of the ratchet wheel 38 and the horizontal shaft 3.

Owing to the limited distance separating the horizontal shafts 3 and to the stroke of the piston necessary to effect the desired step by step movement of these shafts, the other horizontal shaft 3 is driven by means of a counter shaft 3.) connected to the horizontal shaft by suitable gearing 40, the distance separating the counter shaft 39 and the other horizontal shaft 3 being arranged to be sufficient to accommodate the full stroke of the piston operated by fluid under pressure. The counter shaft 39 is provided with a ratchet wheel 41, the rack 34 being adapted to engage with a pinion 42 loosely mounted on the counter shaft 39 and provided with an arm; 43 carrying a pawl 44 adapted to engage with the ratchet wheel 41.

The shafts 3 are each provided with a pawl 28 and a ratchet wheel 29 for ensuring the rotational movement of the shafts 3 in one direction only as in the construction previously described.

The arrangements above described for raising the tubs or trucks by electric, pneumatic, or hydraulic power may evidently be embodied in a hoist provided with arrangements for transverse displacement of the hoist as a whole if desired, as described for instance with reference to Figures 1 and 2, and the constructional arrangements of any of the forms described may evidently be modified in various respects without exceeding the scope of the invention.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is:

1. In combination, a plurality of vertically spaced fixed decks, a plurality of tracks on each deck, an elevator cage having a plurality of decks spaced to register with said fixed decks, a track on each deck of said cage, and a hoist arranged to transport a tub from any track on any of said fixed decks to any track in said cage.

2. In combination, a pithead having a plurality of vertically spaced fixed decks, a plu rality of tracks on each such deck, an elevator cage having a plurality of decks spaced to register with said fixed decks, and a hoist interposed between the pithead and the cage for transporting a tub from any track on the pithead to any deck of said cage.

3. In combination, a pithead having a plurality of vertically spaced fixed decks, a plurality of tracks on each such deck, an elevator cage having a plurality of decks spaced to register with said fixed. decks, and a hoist interposed between said pithead and said cage and provided with means for receiving a tub from said tracks, such means being capable of vertical movement to register with any deck, and of horizontal movement to register with any track.

4. In combination, a pithead having a plurality of vertically spaced fixed decks, a plurality of tracks on each such deck, an elevator cage having a plurality of decks spaced to register with said fixed decks, a hoist provided with tub receiving means capable of vertical movement to register with any said deck, and a fluid pressure operated device for causing horizontal movement of said hoist for moving said tube receiving means into registry with any said track.

5. In combination, a pithead having a plurality of vertically spaced fixed decks, a plurality of tracks on each such deck, an elevator cage'having a plurality of decks spaced to register with said fixed decks, a hoist provided with tub receiving means capable of vertical movement to register with any said deck, and means for causing horizontal movement of said hoist for moving said tub receiving means into registry with any said track.

6. In combination, a track for mine tubs, a hoist comprising two independent angle irons arranged to align with the two rails of said track to receive a tub from said track and means for moving said two angle irons in synchronism in a vertical plane.

7. In combination, a track for' mine tubs, a hoist comprising two independent angle irons arranged to align with the two rails of said track to receive a tubfrom said track, t'wo endless chains disposed in spaced parallel vertical planes. sprocket wheels for driving said chains in synchronism, a support ing member fixed to one said chain and arranged to align with one. rail of said track, and a second supporting member fixed to the second chain and arranged to align with the remaining rail of said track.

In testimony whereof I afiix my signature.

FRANK M. CASTLEMAN.

Images