US115360A - Improvement in boat-detaching apparatus - Google Patents

Description

as suspended vfrom the davit.

PATENT @Tirion IRA ABIEI. RICHARDS, or MIDDLETCWN, CONNECTICUT.

VIMPROVEMENT IN `BO-AT-DETCHING APPARATUS.

Specification forming part of Letters Patent No. 115,360, dated May 30, 1871.

To all 'whom it may concern:

Be itknown that I, IRA ABIEI. RICHARDS, of Middletown, in the 'county of Middlesex and in the State of Connecticut, have invented certain new and useful Improvements in Boat- Detaching Apparatus; and do hereby declare that 4the following is a full, clear, and exact description thereof, reference .being had to the accompanying drawing and to the letters of reference marked thereon making a part. of

this specification. V y 5 `The nature of my invention consists in the `construction and arrangement of a device or apparatus for detaching ships boats from their davits, as will behereinafter morefully set forth. I I

o In order to enable others skilled in the art `to which my invention appertai ns to make and usethe same, I will nowproceed `to describe its construction andoperation, referring to the annexed drawing, in which- 4 `Figure l is a longitudinal vertical section,

and Fig. 2 a horizontal section of my device.

Fig. 3 is Va side view of the jaws which suspend the boat. j i

Arepresents the keel of the boat, and B the stern-seat. G is a metal frame, secured on the under side of` the seat B, and within which frame the principal parts of my apparatus are arranged.` D` is an l upright shaft, passing through the frame (l and resting in a step, E,

fastened to the keel, for the purpose of hold- `ing the lower end of the shaft orspindle in position. On the spindleD, within the frame C, are two arms, G Gr,placed parallel with each other, one above theother, as shown,

and provided at their ends with rollers a a. The lower set of these rollers rests on the bottom plate of the frame C, while the upper set rests on the lower set, as shown in Fig.` 1. OnV the upper rollers rests hooks H H, which are constructed in the peculiar manner shown in Fig. 3, and are pivoted ina slotmade in the seat B. o The hooks or rather jaws H H extend above said. seat, and are provided" with an "opening, b, half in each jaw, to receive the hook I of the tackle-block pivots or pins, on which the jaws swing apart atthe top torelease the hook I., l0n the spindle D, below the frame C, is an4 arm, J,

d d are the Another arm, N, on the spindle D, connects,

by a rod, O, with another set of jaws, 8vo., in the bow. of the boat, exactly like the 'one already described, with the exception of the arm J, rod K, and lever L, which are only needed at one end of the boat. It is intended to have the frame C securely fastened to the 'under side of the seat and metal straps embedded in the top side of the' seat, and bolts passing through the straps, down through the keel, to hold the whole firmly in place. It will readily be seen that, the lever L resting on the block or seat M, no reasonable amount of weight will part the jaws, bearing, as they do, through the line of centers of the jaws and rollers on the lower plate of thelframe C; but,

j with very little power applied in lifting, the

lever L can be raised, and the rollers will pass out from under the ends of the jaws, and both ends of the boat will be instantly and simultaneously released from the davit-tackle at any point desired, before or after reaching the water.

My double roller-trip is susceptible of various modiiications, which, however, all involve the same principle. For instance, I may put the top rollers on the tangs of the jaws, and the bottom ones in suitable bearings in the bottom plate, and then provide an arm on the spindle, with a wedge-shaped front to pass be tween the rollers. The same device, namely, the double roller-trip, may be arranged in various other ways.

` Having thus fully described my invention, what I claim as new, and 'desire to secure by Letters Patent, is

A double roller-trip, constructed and ar ranged substantially as shown and described, and for the purposes herein set forth.

In testimony that I claim the foregoing I have hereunto set my hand and seal this v12th day of December, 1870.

l VIRA ABIEL RICHARDS. [1.. s]

Witnesses:

C. L. EVERT, JAI/Ins CURTIS LAMB.

`connected. by the rod K with the bent lever

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