US173917A - Improvement in hoisting apparatus - Google Patents

Description

3 Sheets-Sheet 1. J. DORMAN.

' HOISTING APPARATUS. I N ,173,917 Patented Feb.22, 1876.

x nveniol' y 3Sheets-Sheet2.

? 4 J. DORM-AN'. V

HQISTING APPARATUS.

No.17} 917. Patented Feyzz 7e,

N.FETERS. PIIOTO-LITHOGRAPHER. WASHINGTON. D C

UNITED STATES PATENT OFEIcE;

JERRY DORMAN, OFGEQRGETOWN, DISTRICT or COLUMBIA.

IMPROVEMENT IN HQISTING APPARATUS.

Specification forming part of Letters Patent No. 173,917, dated February 22, 1876; application filed January 29,1876.

tain new and useful Improvements inHoisting Apparatus; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled inthe art to which it pertains to make and use the same, reference being bad to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

Figure 1 is a side elevation of the cariiage. Fig. 2 is a longitudinal section of the same. Fig. 3 is a transverse section on line .90 w of Fig. 2; Fig. 4', side and end views of the counterpoise-weight. Fig. 5 is a side elevation of a sliding carriage connected to the other carriage. Fig. 6 is a top view of Fig. 5. Fig. 7 is a side elevation of the whole arrangement. Fig. 8 is a view of thebucket, and Fig. 9 is a cross-section of a coal bin.

This invention relates to improvements in the apparatus for hoisting, conveying, and lowering coal or other material from the wharf to a vessel, and by simply turning the bucket, and by the adjustment of certain devices, the coal or other material can be conveyed from "the vessel to the wharf, as will be more par ticularly hereinafter described.

Inthe usual conveying means heretofore employed the material can only be transported in one direction; but in this-invention by the use of a simple apparatus the material can be transported in either direction, ora vessel may be unloaded of its freight, and loaded by the return bucket with other freight, thus economizing time.

In the drawing A A A represent trestles, which are erected at any convenient place over the bins, or other deposit of-coal or other material, and high enough tor all practical purposes. On the trestles are the rails B B.

G is thecoal-yard, which is formed with false or second bottoms of movable boards, elevated above the floor at such a distance that when the bucket. is placed on the latter the coal can be shoveled into it without being raised, andas thecoalisremoved the boards can be easily taken away for the bucket to be kept well under the edge thereof,'as seenin Fig. 7. D represents a carriage placed on four flanged wheels d, d. E is asliding carriage, having the function of an adjustable stop, and 'furnished with cleats e e on the sides, under and over the rails B B, to clasp them, and admit of sliding along the rails, yet to support the carriage in position on them. The carriage D is made with two solid sides, as seen in Fig. 3, having between. them a vertical partitionboard, at, and a sloping partition-board, (2. These sides are kept together by rods or bolts 01' d, and the axles. of the wheels (1 cl serve as braces also, to strengthen the sides. Through the carriage D is a rock-shaft, F,'having an arm, f, curved at its upper end, as seen in section, Fig. 2. This arm is designed to support the pin or bolt 9 of the sheave lance G, as seen in Figs. 2 and 3, when in the position as therein shown, but is capable of movement from under the bolt g when the rock-shaft is rotated, as will be explained hereinafter. On

the shaft F is also fastened, on the outer end,

as seen in Fig. 1, a lever or bell-crank, H, which moveswith the shaft. To the upper end is pivoted a sliding bar, H, kept in place by a strap, h, on the side of the car. To the lower end ofH is also pivoted another sliding bar, H, secured by a similar strap, h. From the pivot of lever 1H, extending at right angles to it, is an arm, 13', with a counter-weight, 11, which invariably brings the Whole system to the position shown in Fig. 1 and Fig. 2 when at rest, thereby placing arm f under the vertical line of the bolt 9 of the lance G, whether the lance be ,as represented in Figs. 1, 2, and 3, or below the carriage, as in Fig. 7.

The purpose of this arrangement is as follows: When the'lance is in position, and the bucketvwith its load is suspended from the hook of the pulley, as shown in the outer end of Fig. 7, and the car is run down ready to lower the bucket, the stop I, which is to the left of its pivot, will force the slide-bar H back to the position shown in dotted lines in Fig. l, which rotates the rock-bar F and carries the arm f over to the left, as seen in dotted lines in Fig. 2, and, consequently, from under the bolt 9, so that the sheave and bucket are r stem 01 of the back part of the bucket J.

supported only by the fall or rope R, which can then be backed to permit the bucket to descend.

Should it be desired to dump the load and not to lower it, the following is the process The carriage D is allowed to descend as before,

butthe stop I is thrown over to the right, as at I, and, consequently, the slide-bar H can run down without being shoved in. The catch-lever J of the bucket J is pivoted atj to the buckethandlej. At its lower endj there is a notch, which catches over a pin in the projecting The lower end is made broad, and so weighted that it will fall to its position when relieved from the roller K. The upper end of the lever J is T-shaped, as seen at Fig. 8, and is at such a height that when it passes toward the double spindle-roller K, which is pivoted at the lower end of a hinged bracket, k, and supported by a hinged brace, 7c, the upper end of the lever passes under the roller K, and thereby releases the lower end of J from the pin in i, and, consequently, as the center of gravity of the load in the bucket J is beyond the'point of support, the bucket turns over and .discharges its load, and immediately returns to its normal position, as the bucket itself is arranged to do this, and the pin in t engages the notch j again.

The pull upon the rope will immediately draw the carriage back to the upper end of the track,-whcre the following result will occur, viz: The upper slide-carriage E is so arranged that, by the rope B, which is fastened to the upper end of it, passing through a pulley, P, on the rail, and thence to any convenient point for fastening, it is secured. Another rope is fastened to the slide-carriage E, and passes over a pulley, P, on one of the outer posts A, and to its end is attached a counterweight, W, shown in Fig. 4, heavy enough to pull down the slide-carriage E when it may have been pulled up by the pressure of the lower carriage as seen in Fig. 7, at the upper end.

Slide-carriage E has within it a frame of metal bars suspended by pivot-bolts e, and braced in the middle by bolts 0, and at its lower end having a double spindle-roller, K, similar to K, at the outer end'of the railway; This frame is braced by another frame, L, having in it two notches, l l, to support it in either of the two positions shown in Fig. 7.

If the object is to lower the bucket into the yard or bin, the spindle-roller must be in a vertical position, as at K then the slide-bar H of the carriage D will strike against a stop, m, on the lower edge of slide-carriage E, which has been brought forward andheld there by a stop-handle, a, being dropped over a knob in slide m. This forces slide-bar H to the right, and the rock-bar F is again turned, the arm f removed from under the bolt g, and the brace and sheave, with the bucket, are

lowered, as seen in Fig. 7, at 0.

If the vessel is to be unloaded, the bucket will be turned around, as at C; then the lever J will have its upper end to the left, run under the spindle-roller K, thrown into the position at K, the stop m will be drawn back to m, and held there by the notch a over the knob, which allows the slide-bar H to run under the slide-carriage E without releasing the lance G; consequently the lever J is released from the bucket, and it tilts to the left and discharges its load as it did when first described at the'lower end, and as seen at C, Fig. 7. 'Along the line of the rails B B are placed projecting pins 0 o, &c., for the purpose of holding the cross-head D of the projecting arms D of the carriage D. The construction of the arms is as follows: are pivoted on a through-bolt, f, their upper ends-sustained by a cross-head, D, which projects beyond the line of their sides and over rails B B, to be stopped when down, by the pins 0 o, &c. Their lower ends carry the rock-shaft F, the bearings ofwhich are sustained in elongated slots f in the sides of the carriage. tion is as follows: When the load is in the bucket, and the pin {1 of the sheave-lance G is held up by the armf, the shaft F finds its bearing at the bottom of the slot f, and the arms D are raised above the tops of the pins 0 0, 860.; but when the shaft F is forced with the arm f to the left, the weight of the load is taken from it and the arms D are heavy enough to drop to the rails B B, and consequently between the pins 0 0, and thus retain the carriage in position. At the lower end the first pin is so arranged as to be in advance of the carriage, so that when the bucket is to be drawn up the rope will not pull up the carriage, but it will remain stationary until the lancehead G has arisen above the arm f,'and then, so soon as the weight of bucket, &c., bears upon arm f, the shaft F falls in its slot, and arm D is elevated again, and the pull of the rope B draws the carriage D upward, and this without a stop in the operation, as the cross-head D is relieved automatically from behind the pin 0. The carriage E, at the lower end, has a recess, E, formed in it, for the purpose of permitting the projecting arms D and cross-head D to lap over, so that the slide-bar H of the carriage D may strike against the projection m under carriage E, for the purpose of lowering the bucket. are square-formed hooks p 10, into which the cross-head D can drop as carriageD runs back, and be retained until the weight is.

again thrown upon the shaft F, when. crosshead D is lifted out of these hooks, and the carriage D can run down the railway, as above described. These arms D are shown in section, Figs. 2 and 3, with the slot f in dotted lines around the shaft F, f being the pivot on which it turns.

The rope or fall, technically so called,

They

The operation of this construe Below this recess passes from a drum, M, over a leading pulley, M, supported on a shaft on the rails B B, and

then over a pulley on slidecarriage E, and

then over the pulley N on the carriage D, and down through it to the pulley Niu the sheave, and around under it to the bolt d'in the carriage, when it is made fast.

Theform of the entrance in the carriage D is sloping on three sides, viz., under the partition d, as in Fig. 2, and on the sides g, as seen in Fig. 3, so that the lance-head, which is curved, as seen in both Figs. 2 and 3, will be guided directly into the proper position by sliding along these sloping sides, and forces the arm f away until it passes the end, which fall into the lance below the bolt g, and thus sustains it. The lance is made double or hollow, as seen in Fig. 3, to admit the arm fbelow the bolt g. In Fig. 4 is represented the counter-weight W to be suspended to the rope R, which passes over pulley P. The small pulley w is formed eccentrically, and has a handle, to, by which it can be operated. The rope sustaining the weight W, when drawn down, can pass freely under the pulley w; but when pulled in the other direction the pulley jams it against the bottom of the sheave, and thus holds the weight. This device is made to accommodate the lengths of line according to the distance which the sliding car E maybe along the railway. The handle 10 isto turn the pulley when theweight has to be adjusted. any position along the rail -13, whereby the bucket may be lowered at any point desired in the whole distance of the line of railway.

In the place of therails B B and supporting trestle-work, with slight modifications, the apparatus herein described may be supported on a wire rope or ropes where the situation would be better adapted therefor.

The stop I may be adjusted at Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a hoisting and conveying apparatus,

a rock-shaft,I having projecting arm f, in combination with bell-crank lever H, slide H, and an adjustable stop, I, substantially as and for the purpose described. j 2. Arock-shaft, F, having projecting arm f, in combination with bell-crank lever H, slide H, and a stop, on, in the sliding carriage E, substantially as and for the purpose described. 1 3. The combination of projecting arms pivoted at f", having at the upper end a projecting cross-head, and at the lower end supporting the rock-shaft F and its arm f, slots f in the sides of the carriage to admit of vertical play therein, and pin g of the lance G, for the purpose of lifting the cross-head D over the pins 0 0, substantially as and for the purpose described.

4. The hollow lance of the sheave, with its pin g, substantially as and'for the purpose described. i

5. The combination of the arm f of shaft F, the lance-head, and pin g, with the sloping guide and support 11, substantially as anrLfor the purpose described.

6. The trip-lever J, having its lower end weighted, and at its upper end a cross-head, all substantially as and for the purpose described.

In testimony that I claim the foregoing as my own invention, I afiix my signature in presenceof two witnesses.

J. DoaMAn.

Witnesses:

G. M. GONNELL, ALFRED OLoUeHLY.

Images