US719177A - Hoisting apparatus. - Google Patents

Description

No. 719,177. PATENTED JAN. 27, 1903.

G. BLAAUW. HOISTING APPARATUS.

APPLICATION FILED NOV. 8, 1902.

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ATTORN EYW PATBNTED JAN. 27, 1903.

G. BLAAUW.

HOISTING APPARATUS.

APPLICATION FILED NOV. 8, 1902. NO MODEL. 3 SHEETS-SHEET 2.

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hilTFD FFICE GEERT BLAAUW, OF NEW YORK, N. Y.

HOlSTlNG APPARATUS.

$I EOIFIUATION forming part of Letters Patent No. 719,177, dated January 27, 1903.

Application filed November 8, 1902. Serial No. 130,539. (No model.)

To all 1071,0127, it may concern.-

Be it known that I, GEERT BLAAUW', a subject of the Queen of the Netherlands, and a resident of New York city, in the county and State of New York, have invented Improvements in Hoisting Apparatus, of which the following is a specification.

My invention relates more particularly to that class of hoisting appliances in which a bucket is used to elevate material and discharge it into a chutesuch a hoisting appliance, for example, as is adapted for the loading of steamers with coal from barges lying alongside or the filling of storage-bins with coal or other such material from barges or cars.

The main object of my invention is to so construct the apparatus as to avoid having to provide means for inboard travel of the bucket, as by the employment of a trolley or by the swinging or raising of the boom. This object I attain by the construction hereinafter described.

In the accompanying drawings, Figure 1 is a side view of a hoisting apparatus embodying my invention. Fig. 2 is a similar view, but showing the parts in another position, with the bucket tipped and discharging its contents into the chute. Fig. 3 is a side elevation showing the boom and the parts carried by it lifted up against the frame, so as to be out of the way of the vessels masts, for example; and Fig. 4 is a front View corresponding with Fig. 3.

A is a stationary frame, which may be supported in anysuitable way, as by means of a guy-line (I, from the top of the frame to a suitable point below.

13 is the boom, which is hinged at b to the frame A, so that when desired it may be turned up out of the way against the frame, as shown in Figs. 3 and 4, but when in use will be supported at a suitable angle by guyropes b and in effect form a part of the stationary frame.

The hoisting-rope II passes over a sheave h at the upper part of the stationary frame A and over a sheave 71' toward the outer end of the boom B, and such rope carries at its lower end the bucket D. This bucket may be of the clam-shell, tub, or other suitable type, a tilting tub being shown in the drawings for the frame A, while its upper part f is in this case made to slide within the lower part. The part f is hinged at its upper end to a swinging frame G, which is hinged at g to the boom. This upper end of the part f of the chute F is in the form of an open-topped hopper f and the forward edge of the hopper has its hinged connection with the frame G at g. This frame G is shown as formed in the present instance of two triangular side frames connected by cross-bars so spaced that when this frame is turned up upon its hinge g, as shown in Figs. 2 and 3, for example, the hopper f can enter freely between the side frames, and the bucket can also pass between the side frames to discharge its contents into the hopper, as shown in Fig. 2. From the forward upper corner of the frame G project two bars 1) 19, between which the hoisting rope passes. These bars are placed sufficiently close together that a ball or other enlarged part r on the bucket or the hoistingrope cannot pass between them. On the under side of the boom B, Iplace projections m, such that when the bucket has been hoisted to the position shown in Fig. 2 the trippinglever n will come in contact with the said projections m to release the bucketand discharge its contents.

From the foregoing description it will be seen that, supposing the bucket to have been loaded and to be in the course of being raised or elevated, the ball or other projection r upon the bucket or hoisting-rope will come into contact with the projecting arms p, as indicated in Fig. 1, so that the continued elevation of the bucket will serve to turn the frame G from the position shown in Fig. l to the position shown in Fig. 2, and thereby draw the telescopic outer end of the chute F under the bucket. Thereupon the bucket is tripped by the trip-lever it coming into contact with the projections m on the boom, and

the contents of the bucket are discharged into the chute. When the empty bucket is allowed to descend, the weight of the frame G and of the sliding portion of the chute will cause the frame G to turn upon its hinge g back again to the position shown in Fig. 1, as will be readily understood.

Instead of connecting the guy-ropes b directly to the boom B, I may connect them to extensions 00 on the side pieces of the leverframe G, as shown, so that when the bucket has been emptied and the strain on the hoisting-rope released, Fig. 2, the weight of the boom and bucket will aid in turning the leverframe G back to the position Fig. 1.

By the construction described I avoid any inboard travel of the bucket and so simplify both the construction and operation of the appliance.

When it is desired to elevate the hoisting apparatus out of action and carry the boom and chute out of the way of vessels masts, for example, the hoisting-bucket is detached and the hoisting-rope is wound up to draw the boom, frame G, and chute up to the fixed frame, as indicated in Figs. 3 and 4.

I claim as my invention 1. A hoisting apparatus consisting of a stationary frame, hoisting-rope and bucket,with a telescopic chute, and means for drawing the chute under the bucket when the latter is elevated.

nected to the chute to draw the chute under the bucket when elevated.

3. A hoisting apparatus comprising a stationary frame, hoisting-rope and bucket, with a telescopic chute and a hinged frame connected to the chute and adapted to be acted on by a part of the hoisting-rope to draw the chute under the bucket when elevated.

4. A hoisting apparatus comprising a stationary frame, and telescopic chute with a hinged frame and a chute, the hinged frame having a pair of projecting arms through which the hoisting-rope passes, and a part on the hoisting-rope to contact with the said arms to draw the chute under the bucket.

5. A hoisting apparatus comprising a stationary frame, hinged boom and telescopic chute and a hinged frame connecting the boom and chute, substantially as described.

6. A hoisting apparatus comprising a stationary frame, boom and telescopic chute, with a hoisting-rope and bucket and a hinged frame connecting the boom and chute, said hinged frame consisting of triangular side pieces and connecting cross-bars and adapted to be acted on by a piece on the hoistingrope, as and for the purpose set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

GEERT BLAAUW.

Witnesses:

HUBERT HOWSON, F. WARREN WRIGHT.

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