US353083A - Means for discharging cargoes - Google Patents

Description

(No Model.) 2 Sheets-'Sheet 1. l

J. REID.

MEANS FOR D'ISGHARGING GRGOES.'

N9. 858.088. Patented Nov. 28, 1888.

WMM/woo@ 5149814 loz '55% atroz/118% (No Model.) 2 Sheets-Sheet 2. J. REID.

MEANS FOR DISGHARGING CARGOES. A

No. 353,083. Patented Nov. 23', 1886.

(g1/wen boa l N. PETERS. Phowlilbogmpher. wnhngtan, n.6.

UNITE- D STATES PATENT Orrrcn.

JAMES REID, OF PORTLAND, OREGON.

MEANS FoR Discl-IARGING onucolas.

SPECIFICATION forming part of Letters Patent N o.v 353,083, dated November 23, 1886.

Application filed May 8, 1886. Serial No. 201,620. (No model.)

f Discharging Cargoes and Ballast from Ships,

of which the following is a full and exact description and specification.

My invention relates to means for discharging cargo and ballast, whereby the same is expedited and simplied, and reference is here made to the drawings.

Figure lis a general view in the midshipf section of a vessel; Fig. 2, the lower end of the hoisting-boom over the hatchway; Fig. 3, the upper end of the same, showing the bucket ready to discharge over the dump. Fig. 4 shows the cargo-latch, (usedforcargoonly.) Fig. 5 is a side View of the traveling carrier, and Fig. 6 an end view ofV same and cross-section of hoistingboom. Fig. 7 is a perspective of the snatch-block especially arranged for this ballast or cargo hoist.

Aln the general view., Fig. l, the bucket ct is shown in the lower deck or hold loaded with ballast l, and is being drawn to the main hatchway through theleading or snatch block7 d. As

soon as it arrives in the middle of the hatch-V way the block is opened'or unhung, as shown in Fig. 7, and is so opened by pulling the bolt s, whereby lthe block is released and allowed to open and turn half-way round on the hinge near its back part or rear-as when the strain is i'ree'the block opens andthe engine, instead of hauling the buckethorizontally,immediate` ly commences to hoist the bucket up through the hatches and continues to do so until the lower stop, y, strikesfthe lower end of the traveling carrier c, which causes it to rise outl The above being the general movement, a'A

description is here made of the several parts conducing thereto. First, we reach the snatchblock d, situated in the lower hold. VThis passes.

block is made in the manner shown, Fig. 7,

andvis somewhat' different from a regular snatch-block, owing to its hinge in the back part being attached to a long beam of wood. lt is provided with eyebolts at its upper and lower ends for suspending and attaching it to i the stanchion or other support between decks. This beam'is provided with a' push-and-pull bolt, s,which is operated by an attendant each time the bucket is hoisted or lowered into the hold. When the bucketis hoisted, he pulls it, releasing the block, which now opens and allows the hoist-rope to fall off the pulley, and the hoisting to the boom above now continues without stoppage. Arrived at the boom, a

stop, y', on the hoist-rope raises the lower end of the traveling'carrier c out of its rest, when the bucket a and carrier c continue their journey to the upper end of the boom.'

Thetraveling carrier c is a peculiar contrivance When in its seat in thelower ends ofthe ways or track-bars e-here bent or curved for the purpose-it acts as a iixed pulley. It is provided with four wheels, i, fixed on axles like a car-axle, (or they may be loose,) a pairmoving freely in each end of side or bearing' pieces of the block, and in the center and below the line of the axles ofthe wheels z" the sheavej is placed, over which the hoist-rope Vhen the stop y has raised the pulley c out of its seat, it passes upward freely along the iron ways e, which are secured to the inner upper edges of the boom-timbers,so arranged as to make a long slot between them for the passage of the pulleyand hoist-rope, and when the whole has arrived at the outer end the shipperq strikes the'upper end of the' spring-hook u, and thereby depresses it upon the shank'of the bucket-carrying hook, so thatv the loop of the rod t is ejected 'from thekhook u by the enlargement on the shank of the carrying-rod, and thus releases the bottom of the bucket to permit the latter to discharge its contents. This spring u is constructed on the followingplan: Thecarrying-hookwhich holds the bucket is iirmly attached to the hoist-rope b at its upper end. ln the middle it is enlarged, so as to form a bearing for the spring r at .its lower end.v Below this is another enlargelnent which slopes from the middle out-r wardly and toward the hook when in its ordii IOO 2 sssloas nary place with the spring expanded. In this position it forms a hook, retaining the bot-v 5 ing the hook is compressed, the hook portion is forced below the lower enlargement on the main or bucket hook. This allows the suspending-rod t, having a hook or loop in the upper end,to slip off, thereby opening the bot- Io tom of the bucket and permitting its load to fall out.

When freight or cargo is discharged instead of ballast,a modification is made inthe upper end of the hoist-boom in the following manner: The initial movement in the hold of the hatchway and up and out over the boom is as before, only in place of the bucket a strap or sling7 or a square-shaped platform of plank suspended by its corners is used. The load 2o having arrived at the upper end, the tracks e are continued by a centrally-pivoted counterweighted or balanced portion, which we will call e',7 Fig. 4. As soon as the load reaches the place, being heavier than the counterweight g, thewayse,wliich normally form continuations ofthe ways e, are depressed ,and the lower pair of wheels in the traveling pulley c fall into the opening. As theload is now safe from running down the boom when the hoist 3o is reversed, it is now lowered, and as soon as it is released the counter-weight g raises the track4 e into its place again, which allows the traveling pulley to return along the ways e down the boom,the pulley being heavy enough to raise the hoist-rope end and return with it to the hold as soon as the hoist is reversed. In t-he latter arrangement there is no need for the spring-hook u,as a common hook answers the requirements.

4o The hoisting-boom 7c is made of two long sticks of timber some forty or fifty feet in length. At the lower end they have a filler-block placed between these, as thick or slightly thicker than the traveling carrier c, and the same in the upper end, where it is rounded outside, and a band driven over having eyes for guys. The lower end is rounded ina socket-joint contained between two jaws, which are bolted to the side of the support f, and held in place by a strong 5o bolt in center. Instead, the lower end may have a boom goose-neck and eyebolt, when it may be made to move laterally at the discharge or outer end by means of the guys, if required. The boom is kept from spreading 5 5 by means of the arch-bars o, which are bolted to the outsides of the timber. One of these bars has a suspension-post, to which the sup porting-block n is attached and also to the mast m. Over this post is also placed a tension-rod,

which is carried each way to the ends of the boom for the purpose ofstrengthening and stift`- ening.

The bucket a is made of iron or wood, and may be a box or tub shaped receptacle provided with a movable bottom or door, w, opening downward or outward, as before described, or in a similar manner. It is also provided with a movable scoop or nose, pivoted to the sides, as shown in Figs. 2 and 3, and which can be elevated or depressed by seizing the bail on the outside, whereby it may be filled with loosesand, earth, or stones, somewhat like ordinary earth scoops or Scrapers, and vmay be made to rise by throwing the bail backward, or take more load by pushing it forward, as may desired, when hauled along or over the ballast and toward the hatchway.

l. The combination of the boom provided with a way having a depression, a carrier adapted to travel on said way, and having sup porting-wheels, one of which is designed to enter said depression and prevent the movement of the carrier, and a rope guided by said carrier, and having a stop, y', to Contact with said carrier and elevate the wheel thereof out of the depression, substantially as set forth.

2. The combination of the boom, carrier adapted to travel thereon, rope guided by said carrier, hook u, dumping devices connected therewith, and means, substantially as described, for disengaging the bucket-dumping devices from the hook, substantially as set forth.

3. The combination of the boom, carrier adapted to travel thereon, rope guided by said carrier, a bucket-suspending hook connected to said rope, a hook, u, having a spring-play relative to said bucket-hook, abucket having a pivoted bottom, and a rod, t, connecting said bottom and hook u, an enlargement and spring, and a shipper for depressing the hook a, to release the rod t, substantially as set forth.

4. The combination, with the boom and carrier adapted to travel thereon, of a rope guided by said carrier, and a snatch-block having a hinged section carrying a pulley, and a bolt, s, for securing said section, substantially as set forth.

5. The combination of the bucket provided with the hinged bottom, the pivoted rod t, the spring-hook u, the rope, the carrier, the ways, and the shipper, substantially as described.

JAMES REID.

Attest:

A. C. TALBOT, Guss. B. TALBOT.

IIO

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