US173929A

US173929A - Improvement in anchors

Info

Publication number: US173929A
Authority: US
Publication date: 1876-02-22
Anticipated expiration: 1893-02-22

Description

.'r. T. FEWKES.

UNITED. STATES JOSEPH T. EEwKEs, OE PHILADELPHIA, j PENNSYLVANIA, ASSIGNOR TO JOSEPH T. WILLIAMS, OE SAME PLACE.

IMPROVEMENT IN ANCHORS.)

Specification forming part of Letters Patent No. 173,929, dated February 22, 1876 application filed January 19, 1876.

To all whom it may concern:

. Beit known that I, JOSEPH T. FEWKES, of the city and county of Philadelphia and State of Pennsylvania, have invented a new and useful Improvement in Anchors; and I do hereby declare the following to be a clear and exact description of the nature thereof, Sudicient to enable others skilled in the art to which-my invention appertains to fully understand, make, and use the same, reference being had to the accompanying drawings making part of this specification, in whioh- Figures l and 3 are side views of the anchor 'embodying my invention. Fig. 2 is a longistruction I greatly strengthen parts otherwise weak, produce a drm, serviceable, and reliable anchor, and reduce the cost of the manufacture thereof.

` Referring to the drawings, A represents the shank, to the crown of which there are pivoted dukes B B. C represents a yoke, which oc'- cupies a position at the axial end ofthe duke arms.

Y In forming the yokes, sach duke'arm is constructed with laterally-projecting arms in in one piece therewith, which together form a T-shaped piece. The projecting arms are then bent toward each other so as to form arches of which the axial end of the duke-arm is the crown; and, when the parts are in position,

theI bent or arched arms project inwardly.

vThe two dukes, with their bent or arched arms,

are then placed together, the two sets of bent or arched arms facing each other. The ends ot' the adjacent arms are overlapped, and the overlapping portions firmly riveted or bolted together, whereby the yoke C is complete, the

overlapped joint 4being at the center of the yoke.

VThe shank A is then fitted between the duke-arms, and the end corresponding to the axis of the duke-arms is bifurcated, and through openings vin the bifurcations and duke-arms the axial bolt is passed, and the several parts are in operative position.

It will be seen that, when the anchor reaches the bed or bot-tom of the water, it assumes the position shown vin Figs. 1 and 2, and as the anchor isdragged, and the forward lower edge c of the yoke strikes an obstruction, or meets with resistance, the tendency is to draw down the points of the palms of the anchor, whereby said points immediately penetrate the bed Or bottom of the water, and the anchor will be engaged or caught, and the vessel held, the parts assuming the position shown in Fig; 3.

The upper and lower faces of the yoke are curved or arched, and the dukes dare at their outer ends, so that, should the anchor be forced sidewise, the tendency of the curved form of the yokes is to cause the anchor to roll back to its first position, and thus right itself. Y

It will also be seen that each half of the yoke is formed in one piece with its respective duke-arm, and that the point of' junction of the duke-arm and the arms that form half of the yoke is rendered drm and serviceable.

Moreover, the joint between the halves of the yoke consists of arms overlapped and riveted, or bolted, whereby Said joint is drm and serviceable.

Now, as the strain on the anchor is on the yoke at the point of contact with the shank, and said point has a lap-joint, and also at the point of junction of the duke-arms and yoke, and said point is without joints, as the parts are made in one piece it is evident that a strong and reliable anchor is produced.

By this construction, also, the space within the duke-arms and yoke is left entirely free 'for the insertion of the bifurcated end of the shank.

PATENT OEEIOE.

Having thus described my invention, what with theuke-arms B, and yoke C, constructed, Iclaim asnew, and desire to secure by Lett-ers arranged, and operating substantially as and Patent, isfor the purpose set forth.

1. The `Yoke C, consisting of two sets of inwardly-projecting arms, each formed. of one JOS. T. FEWKES. piece with the fluke-arms, substantially as Witnesses: and for the purpose set forth. JOHN A. WIEDERSHEIM,

2. The bit'urcated shank A, in combination H. E. HINDMARSH.