US254740A

US254740A - Maurice j

Info

Publication number: US254740A
Authority: US
Publication date: 1882-03-07
Anticipated expiration: 1899-03-07

Description

2 Sheets--Sheet 1.

(MbdeL) M. J. WALSH. v APPARATUS FOR STOWING GARGOES INVESSELS.

Patented Mar. 7,1882.

wheesses .(ModeL) 2 Sheets-Sheet 2.

M. J. WALSH. APPARATUS FOR STOWING GARGOES IN VESSELS.

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N. PETERS Plmlo-Lxlhogmpher. wnshinmom D c.

UNITED STATES PATENT OFFICE.

MAURICE J. WALSH, OF NEW YORK, N. Y.

APPARATUS FOR STOWING CARGOES l N VESSELS.

SPECIFICATION forming part of Letters Patent No. 254,740, dated March 7, 1882.

Application filed April 21, 1880. Renewed February 2, I882. (Model) To all whom it may concern Be it known that I, MAURICE J. WALSH, of the city of New York, in the county and State of New York, have invented certain new and useful Improvements in Apparatus for Stowing Oargoes in Vessels, of which the following is a specification.

My invention is adapted to be used. in connection with hydraulic jacks for which were granted United States Letters Patent dated October 3, 1876; and its object is to provide .for conveniently operating a series of such jacks upon a dock for stowin g cotton or other cargo in vessels.

One of my improvements consists in the combination, with a jack and its supply-pipe, of a waste-pipe extending from said jack and surrounding the supply-pipe, whereby the supplypipe is stayed and its liability to burst from excess of pressure is lessened, and in case of rupture the water is confined in the outer waste-pipe and the wetting of the cargo prevented.

Another improvement consists in the combination, with a dock,of a line supply-pipeextending along the same for supplying a motive agent to a series of jacks, a line waste-pipe also extending along the dock for receiving the exhaust from said jacks, and a series of jacks connected with said pipes by flexible hose-connections, and preferably, also, an accumulator and pump for maintaining a uniform pressure in said supply-pipe.

- Another improvement consists in the combination, with adock,of line supply and waste pipes extending along the same for operating a series ot'jacks, a pump connected with said supplypipe for supplying a motive agent thereto, and a second pump connected with said Waste-pipe for exhausting a motive agent therefrom, whereby provision is afforded for withdrawing all water from the jacks at night to prevent freezing in cold weather.

In the accompanyingdrawings,Figurelrepresents a plan of a dock having my improved apparatus arranged upon it. Fig. 2 represents an elevation of an accumulator embodying my invention. Fig. 3 represents a central vertical section on the dotted line a: m, Fig. 2. Fig. 4 represents a horizontal section of said accumulator on the dotted lines yy, Fig. 2. Fig. 5 represents a section of a portion of a jack and a valve for regulating the supply of water to thejack; and Fig.6 represents asimilar section, only showing the valve in a different position.

Similar letters of reference designate corresponding parts in all the figures.

A designates a dock at which vessels may be loaded, and B designates a pipe extending along the dock, in the present instance upon three sides thereof. The pipe B constitutes a line supply-pipe for operating hydraulic jacks C, any number of which may be connected with it at different points by means of flexible pipes or hose.

Extending parallel with the pipe B is a second line-pipe, E, which may be of somewhat larger diameter than the pipe B, and serves the purpose of adischarge or exhaust pipe for the jacks O.

Placed at intervals along the line of theexhaust or discharge pipe E, and connected therewith by means of branches (1, are couplings or T-pieces b, to which the exhaust or discharge pipes D are connected, and through each coupling or T-piece there extends a branch pipe, 0, leading from the line supply-pipe B. To the pipe 0 is attached a hose, d, of-smaller diameter than the hose D, and constituting the supply pipe for the jacks. In Fig. 4 is represented an enlarged View of one of these coupling or T-pieces, and from it the arrangement of the pipes can be clearly understood. A heavy pressure is used for operating the jacks, and as the supply-hose is surrounded by the exhaust or discharge hose it is supported or stayed, and in case of breakage the water will not escape over the cargo and injure it, but will be confined within the discharge-pipe D.

F designates a diagram view of a vessel loading at its dock, and jacks connected by the flexible pipes D (1 may be carried to all parts of the vessel for stowiug cargo.

In order to provide for the return of the plungers or pistons O of the jacks O, I employ a slide-valve, 0 arranged upon the side of the jack, and working between two seats, r r. In the seat r are ports 8, which communicate one with each end of the jack. In the seat 1' is an annular port, t, which is in communication with the exhaust or discharge pipe D, and a port, a, which is in communication with the supplypipe 61. The ports 7) through the valve itself are always in communication wit-h the ports 8,

and by moving the valve longitudinally the said ports '0 in the valve are alternately brought in communication with the annular exhaust-port t and the supply-port a. By this means the water can be alternately supplied to and exhausted from each end of the jack, and the plunger 01 piston thereof operated.

In order to maintain a uniform pressure upon the supply-pipe B, whether one or a number of jacks arein operation,I employ an accumulator, G, with which the supply-pipe Bis connected by the branch pipe 6; and H designates a pump for maintaining a pressure in the accumulator and supply-pipe. The water-cylindersfof the pump are surrounded by a tank,g, with which the discharge or exhaust pipe E is connected, and h designates the steam-cylinder for operating the pump. The steam-cylinder h of said pump receives steam through a pipe, 1', from a boiler, A, and the water-cylinders are connected by a discharge-pipe, j, with the branch pipe 6, as clearly illustrated in Fig. 1.

Figs. 2, 3, and 4 clearly represent the accumulator, which, as represented, consists of a cylinder, 1, fitted with a piston, J, and pistonrod J, which works through a packing or stuffingbox, I, at the top of the cylinder. The branch pipe 0 communicates with a port, 70, which communicates with the cylinder below the piston. As the water is forced into the accumulator the piston J is raised, and with it the cross-head J attached to the piston'rod J.

In the cross-head J are fixed pulleys or sheaves J J, and in the frame-work at the bottom of the accumulator are fixed stationary pulleys or sheaves J K designates the framework of the accumulator, and at the top thereof are fixed other stationary pulleys or sheaves, J

L designates ropes or tackle, one end of which is fixed at Z, and which passes first over the pulleys or sheaves J thence downward around the pulleys or sheaves J and up and down around the pulleys J and J thence upward over the pulleys or sheaves J and provided at their ends with weights M, which slide in guides or ways min the frame-work K. As the piston is raised the cross=head, with its sheaves, is moved upward, and extending the ropes L raises the weights M, which exert a constant pressure on the water in the accumulator.

When only one or a small number of jacks are in use the capacity of the pump H is greater than is required, and the surplus water is discharged into the accumulator, while when a large number of jacks are in use the capacity of the pump is inadequate to furnish the supply, and the deficit is furnished by the accumulator. This arrangement enables the pressure of the supply to be kept uniform, thereby enabling more effective work to be done, and preventing sudden increase of pressure,which strains and ultimately bursts the flexible hose to which thejacks are connected.

The particular construction of the accumulator here shown forms no part of my present application, but may be made the subject of another application for Letters Patent.

In the supply-pipes B, leading from the accumulator, are valves 02, for shutting the water-supply from either side of the dock. In order to exhaust the jacks of water, it is necessary to create a suction on the discharge-pipes E, and N designates a pump which is attached to said discharge-pipes and draws the water from them, discharging it through a pipe, 0, into the tank g, surrounding the water-cylinder fof the pump H. This pump may be supplied with steam through a pipe,p, from the boiler A.

As the line supply and discharge pipes B and E are very much exposed to the weather, there is great liability of the water in them freezing, and to obviate this I employ a pipe, 0, extending in proximity to them, in this instance between them, and adapted to receive a heating agent-such as steam. In the present instance the steam is supplied by a pipe, O,froma boiler, 0 and after passing through the pipe 0 is exhausted into the tank g, still further heating the water.

The several pipes B, E, and O are intended to be boxed up, so as to confine the heat radiating from the pipe 0 and effectually prevent freezing.

P designates a cotton-press, of any ordinary construction, arranged within the dock A, but supported upon a separate and.independent foundation. This press, as here represented, is intended to operate by steam, which may be supplied to it by a pipe, from the boiler 0 As the foundation for the press is built very strongly and is surrounded by the dock, it serves to greatly strengthen the latter, and by bracing the dock from the said press-foundation its power to resist the action of the waves and its durability are greatly increased.

The combination and arrangement of my apparatus effects a great saving in stowin g cargo of various kinds in vessels, and for stowing cotton in the hold of a vessel it possesses many advantages in addition to those heretofore mentioned. A vessel loaded with cotton can discharge her cargo at the dock, when it is compressed, without removal or unnecessary expense, and againloaded with the compressed bales in very much less time than by the old system of loading cotton, and as vessels are under heavy expense while in port this saving of time is of the greatest importance.

What I claim as my invention, and desire to secure by Letters Patent, is-= 1. The combination, with a jack and its supply-pipe, of 5a waste-pipe extending from said jack and surrounding the supply pipe, substantial ly, as specified.

2. The combination, with a dock, ofa line supply-pipe extending along the same for supplying a motive agent to a series of jacks, a line waste-pipe also extending along the dock for receiving the exhaust from said jacks, and a series of jacks connected with the said pipes by flexible hose-connections, substantially as specified.

3. The combination, with a dock, of a line supply and a line waste pipe extending along the same, a series of couplings or Tpieces connected to said waste-pipe by branch connections, flexible supply-pipes extending through said couplings and connected to a series of jacks, and flexible exhaust-pipes connecting said jacks with said couplings, and surrounding the flexible supply-pipes, substantially as specified.

4. The combination, with a dock, of line supply and waste pipes extending along the same,

nected with said supply-pipe for supplying a motive agent thereto, and a second pipe connected with said waste-pipe for exhausting the motive agent therefrom, substantially as specitied.

6. The combination, with ajack and its supply and exhaust pipes, the exhaust-pipe surrounding the supply-pipe, ot' the valve 0 for controlling the operation of the jack, substantially as specified.

MAURICE J. WALSH. Witnesses:

WM. J. REID,

R. VAN VOLKENBUGH.