US703487A - Marine brake. - Google Patents

Description

No. 703,487. Patented July I, I902. H. SIMPSON.

MARINE BRAKE.

, (Applicatiqx filed Apr. 15, 1902.)

2 Sheets-Sheet I.

(No Model.)

7 v H. SIMPSON.

MARINE BRAKE.

(Applicbtion fllad Apr. 15, 1902.)

Patented July I, I902.

(No Model.) 2 Sheets -Sheet 2.

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may be operated in succession.

UNITED STATES PATENT OFFICE.

HENRY SIMPSON, OF LIVERPOOL, ENGLAND.

MARINE BRAKE.

SPECIFICATION forming part of Letters Patent No. 703,487, dated July 1, 1902.

Application filed April 15, 1902.

To all whom it may concern: 7 I Be it known that I, HENRY SIMPSON, a subject of the King of Great Britain, residing in Liverpool, in the county of Lancaster, England, have invented certain new and useful- Improvements in Apparatus for Arresting the Motion of Navigable Vessels, of which the following is a specification.

This invention comprises certain improve- IO ments in apparatus for arresting the motion the turbine type, where the excessive speed and comparatively inefficient means for propelling astern make the need of arresting ap- .paratus more urgent and require it to be much more powerful.

In order to increase the effectiveness of the arresters, I modify the construction according to my present invention as follows: I fit a series of arresters one behind the other on each side of the Vessel, each two of symmetrically-disposed pairs being adapted to be operated simultaneously vhile the various pairs I increase the effective depth of each of the arresters of a pair by placing one-half of the arrester on each side of a deck or stringer. I increase the retarding effect by providing for a thorough passage of water through the cavity in which the arrester is housed, and I render the action more certain and definite by articulating the arrester to the door which normally closes the compartment, so that the latter is 0 opened when the arrester is turned to the arresting position. I also effect certain improvements-in matters of detail, which will be more fully described hereinafter.

I have illustrated my invention in the ac- 5 companying drawings, in which Figure I is an elevation. Fig. II is a plan, the ship being in section on'the plane X Y; Fig. III, a plan, the upper half being in section, as in Fig. II, and the lower half being a plan of the deck on which the operating Serial No. 102,992. (No model.)

means are placed; and Fig. IV, a view of a detail to a larger scale.

The arresters l are hollowstructures mounted on spindes 2 2,whi'ch spindles are operated by means of cranks 3, connecting-rods 4, crossheads 5, and do uble-acting hydraulic or steam cylinders 6. The ship 7 is so constructed as to forma series of cavities, in which the arresters are located. The cavities, however, are larger than they would require to be merely to accom modate the arresters, so that when the latterare in operation the water can flow through the cavityand around the back of the arrester, as shown in the case of the rearstarboard arrester in Fig. II,which flow by preventing the cavity being merely filled with dead watercousiderably increases the resistance to motion. The rear of each cavity is closed by the arrester when the latter is in normal position, and the forward end is closed by a door 8, suitably hinged and which may be hollow to give buoyancy. The ship is strengthened by bars 9, which again are strengthened by the junction-plates 10, which unite the barsto the deck. Each door has a projecting portion which when the door is closed abutsagainst the bars, and the arresters have a similar projection, which is adapted, as shown, to abut against the projection on the doors. In order to insure that the doors shall open when the arresters are opened, the two are articulated together as follows: A slotted bar 12 is attached to the door, and a pin 13, engaging in the said slot, is attached-to the arrester. The slot is soshapedthatflthe arrester and door are so articulated together that they open and close together.

The construction of the spindle 2 2, on which the two parts of the arrester are mounted, is shown in Fig. IV, from which it will be seen that the spindle is made up of two parts 2 and 2. The lower part of 2 enters a recess .in the upper part of 2 in such manner that while there can be but small relative rotation between the two parts the joint is freeenough to permit of considerable want of alinement.

It will be seen that the longitudinal division of the cavities by the deck and the provision of cross-bars connected by junctionplates to the deck not only very considerably strengthens the hull, but also admits of the fitting of twin arresters, operated by the one operating means and yet articulated together by means which permit departure from true alinement.

The operating means, such as the hydraulic cylinders, may be controlled by any suit-- able and well-known devices. In some cases special means-such, for example, as are used in steam steering-gear-may be used, so that the amount of opening of the arresters may be regulated, in which case the latter may be used for steering the ship in event of disablement of the rudder or in addition to the rudder. The controlling means may also be adapted to open all the arresters simultaneously or to open them in pairs in succession, as may be desired.

I some cases it may be desirable to carry the arresters so that in plan the apex of the triangle may point forward instead of aft, as shown.

Having now fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In combination; a ship in the hull of which is formed a series of cavities symmetrically disposed in pairs on opposite sides of the center line; a series of arresters pivotally located in the said cavities and leaving, when in arresting position, passage-ways for the water to flow through the cavities and around the arresters; a series of hinged doors; means for articulating the doors to the arresters so that they open and close therewith and are held open thereby; and means for operating the arresters; substantially as described and illustrated.

2. In combination; a ship in the hull of which is formed a series of cavities symmetrically disposed in pairs on opposite sides of the center line, each cavity being divided 1ongitudinally into two parts by one of the ships decks and strengthened by bars and junctionplates; a series of twin arresters pivotally located in the said cavities and leaving, when in arresting position, passage-ways for the water to flow through the cavities and around the arresters; a series of hinged double doors; means for articulating the doors to the arresters so that they open and close therewith and are held open thereby; and means for operating the arresters; substantially as described and illustrated.

In combination; the ships hull with the divided cavities; the twin arresters; the hinged doors; the means for operating the arresters; and the double spindle for the twin arresters, consisting of two parts jointed together so as to prevent relative rotary movement while permitting departure from absolute alinement; substantially as described and illustrated.

4. In combination; the ships hull with the cavities and bars; the doors having projections adapted to abut against the said bars; the arresters having projections adapted to abut against the projections on the doors; means for articulating the doors to the arresters; and means for operating the arresters; substantially as described and illustrated.

5. In combination; the ships hull with the cavities; the arresters; the doors; the means for operating the arresters; and the means for articulating the arresters to the doors, consisting of slotted bars attached to the doors and pins attached to the arresters and working in the said slots; substantially as described and illustrated.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

HENRY SIMPSON.

Witnesses:

J. E. LLOYD BARNES, J. E. Hrnsr.

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