US505779A - Out or taxing-in ships boats - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1,

J. SAMPLE. DAVIT FOR PUTTING OUT 0R TAKING IN SHIPS BOATS. No. 505,779. I Patented Sept. 26,- 1893.

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2 2 c u s Witnesses. Inventor.

(No Model.) 3 Sheets-Sheet 2.

. J. SAMPLE. DAVIT FOR PUTTING OUT 0R TAKING IN SHIPS BOATS; No. 505.779. Patented Sept. 26, 1893.

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1 i N T 21 Inventor.

(No Model.) 3 Sheets-Sheet a.

J. SAMPLE. DAVIT FOR PUTTING OUT 0R TAKING IN' SHIPS BOATS.

Patented Sept. '26, 1893.

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Inventor Wihzesses.

UNITED STATES PATENT OFFICE.

JAMES SAMPLE, OF INALLSEND, ENGLAND.

DAVIT FOR PUTTING OUT OR TAKING IN SHIPS BOATS.

SPECIFICATION forming part of Letters Patent No. 505,779, dated September 26, 1893.

Application filed June 3, 1892. Serial No. 435,465. (No model.) Patented in England March 3, 1892,1111. 4,222,- in France May 24,1892,No. 221,862, and in Germany May 25,1892,N0.68,598.

To all whom it may concern:

Be it known that 1, JAMES SAMPLE, a subject of the Queen of the United Kingdom of Great Britain and Ireland, residing at Industrial Terrace, Wallsend, in the county of Northumberland, England, have invented No. 68,598, and France, dated May 24, 1892,-

The presentrequirements as to boat accommodation necessitates, especially in large vessels carrying passengers, a great number of boats being provided the side space occupied by which, with the ordinary davits takes up a very large portion of the vessel and the object of my invention is to economize this space by an arrangement by which two boats of the ordinary life-boat type can be put out or taken in by one pair of davits.

On the accompanying three sheets of drawings, I illustrate my invention as I propose to carry it into practical application, Figure 1 (Sheet 1) showing a side elevation, looking toward the ship, of a pair of davits with two boats housed and secured inboard. Fig. 2 (Sheet 2) shows an end elevation of the same and Fig. 3 (Sheet 2) shows an end elevation of the davits swung outboard, with the upper boat quite clear of the ships side and ready for lowering; the lower boat remaining in the chocks on deck. Fig. 4 (Sheet 3) is a plan of the davits and boats corresponding to the position shown by Fig. 3.

The davits consist of two upright stanchions A A, Figs. 2, 3 and 4, secured to the deck in socket-plates B B and further stiffened by stays O O, the fore and aft distance between them being a little more than the length of the boats D and E, to allow them to come quite inboard, and the height sufiicient to accommodate the two boats one above socket plates B. B. Near their upper ends these arms F F are bent toward each other and from the bent ends J J are suspended the blocks K K to which the boats are attached, the object of so bending them being to get a fair-lead of the tackles L L, to the disengaging hooks or other gear in the boat.

The bent heads of the davits may be con uected fore and aft by a chain M or by a tie rod to give them stability'in that direction. The swinging arms F F are fitted with blocks N N from which tackles O 0 lead to similar blocks N, N, on the heads of the upright stanchions A A, and the ends of the tackles are made fast to cleats? P.

When the swinging arms F F are inboard they are vertical, or nearly so, and rest in recessed parts of the frames Q Q as a support in which they may be secured, when not in use, by a strap or clasp. When inboard the lower boat rests in f chocks S S on the deck and the upper boat hangs clear of it above in the tackles from the davits arms.

A spar T, called agripping or lashing spar, is carried along behind the upright stanchions A A to which it forms a fore and aft stay and the upper boat, when inboard, may be secured by lashing it to this spar against which it rests see Figs. 1 and 2.

In putting out the boats the davits swing outboard with the upper boat, being quite clear of the lower one,until the armsF F rest in brackets R R formed on the deck plates B B at the bulwarks when the boat is lowered into the water and disengaged either by hand or by automatic gear and the davits then return and lift out the lower boat. The lifting in of the boats is efiected in the same manner the first boat lifted being placed in the chocks on deck.

Although I prefer to use ordinary blocks and tackle for swinging out, and for lowering and raising the boats, as being more reliable and, in the hands of sailors, more easily worked, some mechanical means maybe readily ad opted, with or without blocks and tackle such as a winch Worked by hand or power.

Having now described iny'invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A davit comprising arms pivoted at a point inside of the edge of the deck about equal to one-half of the width of the boat to be raised, the free ends of said arms bent inward, stanchions inside of the pivotal 5 point of said arms about one-half the width of the boat, a lashing spar connecting the said stanchions, and an operating mechanism, sub stantially as shown and described.

10 ing their free ends bent toward each other, stanchions placed a suitable distance inside of said arms, stays Oat the outer side of the stanchions for bracing said stanchions, and a 2. A davit comprising swinging arms hav- 1 block and tackle mechanism connecting the ends of the arms and the stanchions, sub- 15 stantially as specified.

JAMES SAMPLE.

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