US135450A - Improvement in anchors - Google Patents

Description

WIM/5.9555:

Mmm/70,9:

AM PHD ro -L/THUGHAP/l/G U0, NK(a.sBoR/vefs Plea cess) UNITED STATES PATENT CEFICE.

WILLIAM wAsTENEYs SMITH, on NEweAsTLE-oN-TYNE, ENGLAND.

IMPROVEMENT IN ANCHORS.

Specication'forniing part of Letters PatentNo. 135,450, dated February 4, 18.73.

.To all whom it may concern:

Be it known that I, WILLIAM WAsTENEYs SMITH, of Newcastle-on-Tyne, England, have invented certain Improvements in Anchors, of which the following is a specification:

This invention consists in certain improvements in anchors, in which, by using a crosshead at the. crown end, no stockis needed 5 at the same time greater steadiness is imparted, while, from the large section offered for resistance, increased holding power is given. Also, by this steadying power being at the crown end, when the cable lifts the shank oft' the ground the anchor will not uncant as all anchors with stocks, or those that are curved at crown end instead of square, do. By this means a ship may ride in safety with much less cable-an important advantage. Another improvement is the position and use of the horns of the loose arms; which being always bearing points for the anchor 'when on the ground, they cause the arms to enter as soon as any strain is putr on the cable, and, by giving great bearing-surface at wide distance from each other, they greatly add to the stcadiness of the anchor.

In the case where the arms are rigid on the cross-head, and the latter moves on the shank, the same effect is produced by the edges otI the cross-head always bearing on the ground, so that when the anchor is dragged they cause the arms to enter and afterward give great bearing-surface and thus steadiness to the anchor.

These anchors will take hold immediately; hold most efiiciently, with great stability, and with very short scope of cable. They will not uncant on the ship swinging 5 are easy to trip, cat, and fish; lie iiat to ships bow 5 and can be readily disconnected, transported, or stowed; and, when holding, cannot be fouled or do any damage to a ships bottom in shallow water; and in those constructed with the arms to work independently, should one arm meet with any obstacle to prevent its obtaining hold, the other is free to do so.

Figure l is a plan view of one method. Fig. 2 is a side view of same. Fig. 3 is an end view of same.`

A is a shank, furnished at its own crown end with a cross-head or shaft, B, iiXed at right angles, through which the shank passes and is secured by the key f. The ends of the cross-head B are made round, and 'on them are mounted the arms U G. These arms are wide at the base, so as to form the horns d d on each side behind the center of axis. They also project a little at one side so as to form stops, which come in contact with the crosshead at h h to prevent the arms from revolving beyond the required angle. These stops and the parts of the cross-head h 7L are dovetailed, so that when strain is put on the arms 1h y firmly gripe the cross-head and thus talle any pressure off the keys c e that retain the arms on the cross-head. g is a shackle for a buoy-rope or for fishing.

Fig. 4 is a plan view of another method.

The shank is formed by two bars, A A, which may be Xed either close together or a distance apart, and secured by bolts or rivets. These bars widen at the crown end, where the cross-shaft B passes through them. The arms C C are similar to those before described, but are rigidly secured on the crossshaft B. The arms and cross-shaft move freely until the stops come in contact with the shank, which prevents them going beyond the necessary angle for holdin g-about fortytwo degrees.

Fig. 5 is a plan view of a third method. Fig. 6 is a side view of saine. Fig. 7 is an end view of same.

A is a shank, to which is secured the crosshead B by the pin e, which pin also secures the arms C C in the cross-head. The crosshead with the arms is permitted to revolve freely until the parts f f come in contact with the shank, which prevents them going beyond the proper angle. d d are the edges of the cross-head that act as the horns in the former methods.

I claim- An anchor, constructed substantially as dcscribed, having the arms ljournaled ou the outer ends ot' a solid cross-head at the crown end, and swinging' independently of each other', said arms having horns which assist the dukes in taking the ground, and are provided with shoulders which bear against the crown-piece to relieve the stra-in on the points of support, as and for the purpose set forth.

WM. WVASTENEYS SMITH.

Witnesses:

FRANCIS HoEATIo DoNNlsoN, GEORGE DALE.

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