US119984A - Improvement in boat-hoisting, lowering, and detaching apparatus - Google Patents

Description

umm 2M; A

No, 119,984. y Patmedocmmsn.

UNITED STATE PATET OFFICEv JOSEPH HUMPHRIES, OF WASHINGTON, DISTRICT OF COLUMBIA.

IMPROVEMENT IN BOAT-HUISTING, LWERING, AND DETACHING APPARATUS.

Specification forming part of Letters Patent No. 119,984, dated October 17, 1871 antedated October 10, 1871.

To all whom it may concern:

Be it known that l, JOSEPH HUMPHRrEs, of

the city and county of Washington, in the District of Columbia, have invented certain iinprovements whereby a boat may be hoisted up, lowered down, and detached from a ships side without danger of swamping or destroying the boat.

The rst part of my invention relates to spurdavits or shores to conduct a boat clear from a ships side when being hoisted up or lowered down. The second part of my invention relates to the combination of four (4) bolts, two (2) triggers, and two (2) rods, and one (1) beam, for the purpose of detaching a boat from the tackles when she is lowered down. By this combination one man can detach both ends of the boat at the same time.

A is the ships side. B B are the davits on which the boat is suspended. C C are the spurdavits or shores, of which one end is connected to the ships side or to the lower part of the davits B B, so as to move up and down if required, the other end of the spur davits or shores O O to be connected to the tackle-block D D, 011 which the boat E is attached. The object of these spur-davits or shores is to conduct a boat clear of the ships side when being hoisted up or lowered. E is the boat. F is the thwarts or seat in the boat. Y G is the keel of the boat. H H are the eyebolts, to which the triggers I I are connected by means of two eyes, one in the other 5 one of these bolts is xed in the forward part of the boat D, passing through the forward thwart or seat F a little on one side of the center or middle of the boat E, and down through the keel G and secured on the outside of the keel G; the

other eyebolt H and trigger I are constructed the same as the above. This eyebolt H and trigger I are fixed in the heel G in the after-end of the boat E. Down below the triggers I have a bend up in the middle so as to give room to hook on the tackle-block D D. K K is a bolt with two prongs on the upper part with a hole through them. These prongs are open wide enough to receive the triggers I I loosely. These bolts K K are to be fixed one in the forward thwart or seat F and the other in the after-part of the boat E through the keel G a little from the center, opposite to bolts H H, near enough for the trigger I to fall between the prongs. J J are the rods that conline the triggers I I between the prongs of bolts K K; one of these rods is connected to the top of the beam L on the forward part, and running along under the thwarts or seats F to the beam L, and through the holes in bolts K K, and over the end of the trigger I, thus confining the triggers I I 5 the other rod J is connected to the lower end of the beam L and runs along on the keel G to the bolt K in the after-part of the boat E, through the holes in the bolt K, over the trigger I`the same as the one in the forward part of the boat E. L is the beam that gives motion to the rods J J. This beam has a socket in the upper end large enough to admit a lever two feet long or thereabouts. In the center of this beam there is a hole. Connected to a small frame, M, is the frame to which the beam L is connected. This frame M is secured to the bottom of the boat E or to the after thwart or seat F.

I claim as my inventionl. In combination with the davits B the supplemental davits or shores G wherebyaboat may be lowered and held away from the ships side, as set forth.

2. The combination of eyebolts H H and K K with triggers I I and rods J J, as described in the annexed specification and drawing.

JOSEPH HUMIJHRIES.

Witnesses:

JOHN W. Garon,

JAivrEs S. GRINNELL. (13)

Images