US929530A - Hoisting and dumping apparatus. - Google Patents

Description

' Patented July 27, 1909.

m5 Aflo nev IHYENTOR THGMAS C. WRIGHT ifmjfd T. G. WRIGHT.

HOISTING AND numrme APPARATUS.

APPLIOATIOB FILED I. 13, 1909.

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THOMAS C. WRIGHT, OF GOLDFIELD, NEVADA.

HOISTHTG- AND DUMPING APPARATUS.

Specification of Letters Patent.

Patented July 27, 1909.

' Application filed January 13, 1909. Serial No. 472,001.

To all whom it may concern:

Be it knoun that I, THOMAS C. W nona, a citizen of the United States, residing at Goldfield, in the county of Esmeralda and.

v State of Nevada, have invented new and useful Improvements in Hoisting and Dumping Apparatus, of which the fOllOYv'lDglS a specification.

My invention relates to hoisting apparatuses for mining shafts, or the like, and particularly relates to that class of hoists m which a bucket may be made to dump at any desirable level.

The particular object of the invention is to provide a hoisting apparatus in which a mining bucket or the like may be hoisted to any suitable level and conveniently dumped.

he invention is also applicable for use in the construction of tall buildings, where the bucket may be hoisted to any of the floor levels, sto mod and dumped. And an 1mportant 0 ject is the provision of means whereby the bucket may be dumped 1n either direction.

A further object of the device is to provide a means whereby a bucket maybe readily detached from its hauling cable, and quickly attached thereto again when required.

Other objects will become manifest in the following specification.

The invention consists of the parts and the construction and combination'of parts, or their equivalents, as set forth in the following specification, and shown in the accompanying drawings, in which Figure 1 is a front elevation of the bucket and frame. Fig. 2 is a similar view of the lower end of the frame. Fig. 3 is a transverse section on line XX of Fig. 2. Fig. 4 is a detail section showing the stop and trip mechanism. Fig. 5 is a perspective -view of one of the bucket carriers.

I have shown the invention applied espe- ,45' cially in conjunction with the head frame A of a mining shaft, althou 'h obviously such a frame may be used in the erection of tall buildings, between the vertical studs of which is slidably mounted a cross-head 2 provided with suitable runners 3 adapted to engage slides 4 by which the cross-head 1S gulded. The hoisting cable 5 passes through a removable wearing-block 6 1n the crosshead and connects by a swivel hook 7 to the hail of the bucket 8.

Pivotally or otherwise suitably connected with the cross-head are a pair of spring-actuated arms 9 which extend downward at each side below the cross-head and are provided with side flanges which slidably embrace the guides 4 of the frame; the springs 10 acting to press the arms outward always against the guides when the arms are engaged withthe guides, and to carry the lower ends of the arms into the de ressions or recesses 11 formed at any suita le point in the guides. The lower ends of the springactuated arms 9 carry suitable hangers or naring members 12 which are designed to be pressed inward toward the bucket and engage suitable lugs or pintles 13 thereon whenever the bucket is raised to a point so that an adjustable clamp member 14 on the cable lifts the cross-head and carries the lower ends of the arms 9 out of the notches 11. Ordinarily when the bucket is lowered for filling or loading, the crosshead is supported by reason of the engagement of the ower ends of the spring-actuated arms 9 against the bottom ledgc of the notch 13, as shown in Fig. 2; the cable and bucket having thus a movement independent of the cross-head. The guides 4 may be of any suitable length, and the cross-head, with the releasing notches 11, may be placed at any desired point in the mine or elevator well.

In operation, with the cross-head supported in the notches 11, as shown in Fig. 2,

the bucket after being filled is raised until the bottom of the bucket comes opposite the hangers 12, with the pintles 13 in the plane of the hangers in such position that when the hangers are pressed in they will inclose the pintles, as shown in Fig. 1. In order to as sist in positioning the pintles with respect to the hangers, I provide suitable guides, as shown at 15, arranged contiguous to the depressions 11 and on each side of the guides 4, which guides are so flared and fashioned that when the operator swings the bucket around so that the pintles pass in between the guides, these intles will be in the same plane with the angers 12. The clamp 14 on the cable is so adjusted that it will engage the under side of the cross-head when the pintles on the. bucket are opposite and in the plane of the hangers 12. A further hoisting of the cable 5 carries the cross-head u ward with the bucket, and as the cross-hea rises, the lower ends of the arms 9 are drawn out of the notches 11 and the hangers are pressed in toward the bucket until the hangers embrace the opposite sides of the pintles and are in a position to support the bucket and its lead whenever the cable is slackcd up and a suitable stop mechanism, such as is shown in Fig. 4, is interposed in the path of the arms to support the cross-head and its load independent of the cable. 1 This supporting or catch mechanism of Fig. 4, while embodied in a separate application, comprises a pivoted stop member 18 and a releasing dog or trip 19, with suitable means, as a sliding weight 20, to carry the trip 19 normally outward into the path of the cross-head and sliding arms 9. The stop catch 18, trip 19 and weight 20 are suitably housed in a guide 4; it being understood that each guide is provided with a corresponding catch mechanism. The stop catch 18 and trip member 19 are weighted so that they project normally into the path of the cross-head and sliding arms; the outward movement of the stop member 18 being limited by the bottom of the slot in the guide in which the member 18 moves.

The trip member 19 is so positioned that it may swing upwardly without interfering with, or acting on, the catch 18, but when pushed down it will engage a projection '21 on the stop member 18 and carry the latter back within its housing, leaving the crosshead and arms free to move. Downward movement of the weight 20 is limited by a suitable stop, as 22, formed by a shoulder in the housing, which will permit a free upward movement of the trip 19 into the housing, as represented in dotted lines, Fig. 4; this trip being normally supported by means of the weight 20 in the path of the cross-head and sliding arms.

In operation, assuming the parts to be in the osition shown in Fig. 2, with the crosshem supported by reason of the expansion of the arms 9 into the notches 11, the bucket, is lowered to any suitable point and filled or loaded, and then hoisted. As the bucket approaches the guides 15 the operator turns the bucket so that the pintles 13 will engage between the guides 15, which latter will extend upward a sufficient distance to insure the proper reception of the pintles into the hangers 12. The interception of the cross-head by the clamp 14 on the cable causes the cross-head to move up with the bucket, and the contracting action of the guides 4 as the lower ends of the sliding arms pass out of the notches 11 causes the hangers 12 to embrace the pintles in the manner hereinbefore described. Theupward movement of the carriage and bucket is continued until the lower ends of the arms ll-pass the stop members 18, but without allowing the trips 19 to drop below the'arms. The cable is then sl'aeked and the cross-head allowed to rest on the steps 18. The further slacking of the cable effects the dumping of the bucket, the dump being made in either direction by the operator applying a tilting pressure upon one side or the other of the bucket. This'is an important advantage in mining operations, especially as it permits the dumping of selected ore upon one side of the head of the shaft into suitable cars, to be conducted to the mill or upon the opposite side of the shaft w ien waste is to'be dumped. By this arrangement a simple means is afforded for the separate distribution of the worthless material, and the valuable ore. hen. the bucket is to be lowered again, the cable is hoisted to carry the cross-head and bucket farther upward so as to release the trip 19 and allow it to drop down to the full line position of Fig. 4; and then lowering the cross-head and bucket, the trips are pressed downward, earrying the stop members 18 backward to dotted line position, Fig. 4, and out of interference with the dumping apparatus. The cross-head and arms slide down the guides 4 until the lower ends of the arms spring out into the recesses 11 and release the bucket pintles, whereon the cross-head is supported stationary, while the bucket is allowed to descend. Maniiestly, as man sets of stops 18 and trips 19 may be employed, in the length of the frame, as desired, according to th level, or diilerent points where a dump is to be made; it only being necessary to provide suitable recesses 1 1 where the bucket is to be picked up by the hangers, and blocking up any other recesses that may have been made, flush with the guide rails 4.

l'Vhen desiring to utilize the bucket as a skip, it is unnecessary to provide the guides 4 with recesses for releasing the hangers 12 from the pintles 13, and the extensions or arms 9 would preferably be rigidly secured to the cross-head 2. The simply journaled in the rangers 12, and the clamp 14 removed from the rope 5, since the cross-head would be 0 erable through the journaled pintles 13. he same advantages in stopping at required elevations and in double side discharging would still be retained.

Having thus described my invention, what I claim and desire to secure by Letters Patent is 1. In a dum ing device, a suitably guided, movable crosslead, a cable, a bucket on the cable, means on the cable engaging the crosshead to move the latter in unison with the cable, supporting members on the cross-head engageable and disengageable with the bucket, means for sup orting the cross-head independent of the ca 1B When said bucketsup orting means are disengaged from the buc ct, and other means for supporting the cross-head independent of the cable when said bucket-supporting means are engaged with the bucket.

2. In a dum ing device, a suitably guided, movable crosslead, a cable, a bucketon the cable, means on the cable engaging the crosshead to move the latter in unison with the cable, supportin memberson the cross-head engageable an disengageable with the bucket, means for sup orting the cross-head independent of the ca le when said bucketsupporting means are disengaged from the hue cot, and other means for supporting the cross-head independent of the cable when said bucket-su porting means are engaged with the bucket, said bucket-supporting means on the cross-head comprising springactuated arms with hangers, and the bucket having pintles engageable and disengageable with said hangers.

3. In a dum ing device, a suitably guided, movable crosslead, a cable, a bucket on the cable, means on the cable engaging the crosshead to move the latter in unison with the cable, supporting members on the cross-head engageable and disengageable with the bucket, means for sup orting the cross-head independent of the ca )le when said bucketsup orting means are disengaged from the buc 0t, and other means for supporting the cross-head independent of the cable when said bucket-supporting means are engaged with the bucket, said bucket having a pivotal movement in either direction on said bucket-supporting means on the cross-head.

4. The combination with suitable crosshead guides, of a cross-head sliding on said guides, a hoisting caoi passing through the cross-head and having a limited movement independent of the cross-head, a bucket on the cable, spring-actuated arms on the crosshead engaging said guides, said guides having opposed bucketsupporting hangers, means for moving these hangers toward and from each other to engage and disengage the bucket, means for supporting the cross-head when the hangers are disengaged from the bucket, and other means for supporting the cross-head when the hangers are engaged with the bucket.

5. The combination with suitable crosshead guides, of a cross-head slidable thereon, spring-actuated arms on the cross-head engaging the guides,said guideshaving burdensuplporting means movable toward and from eac other, means for moving said burdensu porting means toward and from each ot er, a hoisting cable, a burden carrier on the cable, means for supporting the crosshead independent of the cable when said burden-supporting means are moved outward, means on the cable to engage the crosshead to cause the latter to have a limited movement in unison with the cable and burden carrier, means on the burden carrier engageable by said burden-supporting means on the arms when the latter are moved inwardl and other means for supporting the crosslead when said burden-supporting means are moved inwardly.

6. The combination of suitable cross-head guides, a cross-head slidable thereon, springactuated arms carried by the cross-head and slidable on the uides, a cable passing through the cross-l iead, a bucket on the cable, pintles on the bucket and bucket hangers on the arms engageable and disengageable with the pintles, means for supporting the cross-head inde endent of the cable at different points in the length of said guides, and means for en aging and disengaging said pintles with said hangers.

7. The combination of suitable cross-head guides, a cross-head slidable thereon, springactuated arms carried by the cross-head and slidable on the guides, a cable passing through the cross-head, a bucket on the cable, pintles on the bucket and bucket hangers on the arms engageable and disengageable with the pintles, means for supporting the cross-head inde endent of the cable at different points in the length of said guides, and means for engaging and disengaging said pintles with said hangers, said last-named means provided by forming recesses in the guides.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

THOMAS C. WRIGHT. Witnesses:

JOHN KEMPSEY, J. A. CUTLER.

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