US56481A - Improvement in elevators - Google Patents

Description

UNITED STATES PATENT OFFICE@ IMPROVEMENT iN ELEVATORS.

Spcciiicution f orming part of Leiters Patent No. 56,45B, dated July 17, 1866.

To all whom it may concern.:

Be it known that I, GEORGE WILLIAMS, cf Sterling', in the countv of Park and 'lerritorigY of Colorado, have iliade. a new und useful Improvement in Elevators for Mines; and I do hereby declare the following to be a full, clear,

and exact description of the nature, construction, and operation of the saine, suiiicient to enable one-skilled in the art to which it appertains to construct and use the same, reference being had to the accompanying drawings, which are made part of this specification, and in which- Figure 'l is a sideelevation. ,Fig. 2 is avertical sect-ion. Fig. 3 is also avertieal section, the plane of which is at right angle to the plane of Fig. 2. Fig. 4 is a detached view of theelevating-bucket and the bail upon which it is suspended and by which it is attached to the elevating-rope. Fig. 5 is a detached view, showing the inode of applying the bail to the bucket when the latter isworking in an inclined shaft.

Similar iet-ters of reference indicate corresponding parts in the several figures.

The improvement consists of an arrangement of an ascending and descending bucket operatedbycrdqand' windlass, and so supported as to be readily discharged bythe Adeflection of the guide-wheels from their normal line of travelonto inclined ways, the axis of the guidewheels forminga transverseline oi' support upon which the bucket is vibrated or tipped as'it is raised bythe bail. attached to its lower end." By this means there is no additional power required to empty the bucket, as in or.- dinary cases, in which the bucket is suspended at a point between its upper audits lowerend landupset by an obstacle which arrests its mo- 'tion at one point-as, for instance, tipping it over by grasping and detaining the .rim of the month.

Any obstacle placed in the way to tip the bucket increases the resistance at that -point, and should be avoided, as the power must necessarily be equal to overcome the greatest resistance which under ordinary circumstances immediately precedes the emptying and causes greatgdisturbance in the engine. l

The.- arrangements permit the bucket to be loadedLor discharged at various points in the shaft, so as to answer in turn for a number of drifts at different depths, and also to discharge wateriutc an adit or ditch for carrying it ofi', to discharge ore at the surface, or to receive timber for transportation into the mine.

In the drawings, A A are the timbers vof the frame, and B thewall-rock of the shaft. C G' are guide-timbers, between which the wheels D et' the bucket E traverse. The bucket is lifted by the discharging-levers F F, to which the rope G is attached. The latter runs over the pulley H, and is wound upon the drum l of the hand-winch I.

Power being applied to the winch l', the bucket rises until the wheels D ofthe bucket E meet an oblique detlecting-gnide, which cansesit todepart from its normal course, lwhich is still maintained by the discharginglevers F F. This departure causes the bucket to vibrate on its axis L, wherel it is attached to the bail. It tips forward, the wheels D resting upon the curved track M, and as the discharging-levers still ascend in a direct line under the guidance of the timber C, the bucketis eventually tipped up, as in Fig. 2, suiicientl y to discharge its contents into the chute N, or the trough O, if the latter be placed in the required pesition.

The curved dellectcr J in the upper section, Fig. 2, is a fixture, as it is the highest in the series; but in the case ot' those at a lower level, such as J", it is necessary to adjust it to the occasion which requires it. This is donc by means of a lever, J', connecting-rods J2, er equivalent devices, which vibrate the piece J X on its upper pivot, so as to cause it to approach the guide C, and thus deflect the wheels D into the track KX, the bucket then resting upon the curve MX and discharging into the chute O* or trough N", as occasion may require.

For each point of discharge a similar arrangement' is required, and for each point lwhere the bucket is to be loaded with ore a trough, P, is provided with a hook, T, and chain S, which detains the bucket in the required position fer loading by bein g hooked to the chain F', which is applied to the top ot' the f discharging-levers F F.

Q, may represent a drift or gallery in the mine, and R the car traveling therein, which the open bottoni ofthe trough.

Each ot' the chutes (f is pivoted withinits corresponding adit, and the position oi' each is varied to permit the bucket to discharge into the. chute or through the adit by n ieansot' u lever, O' or Ol, and suitable connectingrods.

lVhen the bucket descends thelrook Tis applied by hand to the chain F ot' the discharging-levers F F; but when the bucket begins to ascend tlle central angular link ot' the chain F readily disengages itself from the hook T, and the latter swings over toward the side of the shaft, so as to bc entiely out ot' the way.

. As before stated, thedischargiiig-levers F F always maintain an unvaryingg, straightline of travel, and this is et'i'ected by the a-rnisffenibracing the guide C; but as soon as the wheels D enter either ot' the ways K KX the bucketI E begins to vibrate upon its lower point ot' support L, and this vibration continues until the bucket assumes the tilted position shown in Fig. 2. New, it. is manifest that when the wheels l) enter the curved guidewaya portieri of the weight. is immediately transferred to the curved pointy ,ll or M and the weight of the bucket devolves more and more upon this point as the bottom ot' the bucket continues to rise. Hence as the bucket approaches a. horizontal 'position `the strain upon the elevating- .rope G diminishes to such an extent that the operation of tilting the bucket, instead ot'prequil-ing additional power, as heretofore, is eti fected with greater t'acilit-y or less power than the elevation ot" the bucketI from the mine.

'lhis is not the case under the old inode otl operation, t'or in the latter the pointon which the bucket suspended is located between the top and bottoni ot' the bucket, so that when the tilting connnences, be the deiiecting device ot' any character irlmtsoever, the weight ot' the bucket not. only has to be lifted bodily by the elevating-rope, but the resistance ot the detlecting device has also to be overcome. Ilence it will be seen that an essential feature of my invention consists in having the point ot' suspension ot' the bucket located at the bottoni oi" theI latter and the dellcctng-rollers somewhere between its ends, a central position for said dellcctlng-rollers being preferable.

lly transferring the point ol' support L of the bucket l'l lroni the center of the bottoni toward the edge, as shown in'lrig. 5, the'bneket. may be tilt-ed to ai greater extent than bel'ore, because the pivoted heel oltlie bucketis made to rise higher relatively to the detlecting-rollers l) than'in the previous instance..

The point of support ot' the bucket also transferred toward the edge of the bottoni, for

the purpose ot' adapting the bucket te be held in an uprightl position in an inclined shaft, as represented in Fig. 5. The detail in Fig. shows the point ol' support applied to the center of the bottoni of the'bueket. v

\Vhen the detlectiiig-rollers i) oil the bucket reach the upper extremity ofthe curved guides M or lllx the month ot' the bucket, together with the rollers l), would be free to lnove inward and downward under the continued ascent ot' the pivoted heel of the bucket, and therefore l employ a lixed roller, U', upon which the bucket rests when the rollers il reach the upper extremity ot the dellecting guides, in order to prevent said rollers l) i'rorn running back or downward in the ways K KX. If the rollers were illus allowed to run back in the grooves they would become wedged or jammed within the saine, and this sudden arresting of the parts would produce injury to the n'raehinery and interfere with the operation of the engine. The roller Usupports the bucket till the rollers run upon the guides V, and the rollers l) may traverse upward upon those guides until the engine'cun be conveniently reversed. Then the rollers D, ofcourse, :nove freely downward, traveling in the saure guidcsas those in which they ascended.

The arm ,W (shown in Fig. 2) is lixed to the frame A, and by catching the lowest side ot' the riin at the top ot' the bucket niay be made to answer the purpose of the roller U.

Having thus described my invention, the 'following is what l claim as new and desire to secure by Letters Patent:

1. lhe elevating-buckct E, with the diselnwginglevers F F applied to the bottoni of the bucket, substantially as described.

2. In combination with the above, the de- 'llecting-rollers l) and curved gnideways K K", arranged and operating substantially as described.

3. rlhe adjustable sections .l K, employed to enablethe bucket to be discharged at ditierent heights, substantially as described.

4. The hinged chute 0X, in combination with the levers Oand p, operating` substantially in the manner and for the purpose described.

The bucket E, iu combination with the hook W, or its equivalent, the roller U, substantially as described.

(l llOlt( l E WILLIA MS.

Witnesses:

ALEXu. A. tjrKLkuokn, W. F. HALL.

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