US41754A

US41754A - Improved anchor

Info

Publication number: US41754A
Authority: US
Publication date: 1864-03-01
Anticipated expiration: 1881-03-01

Description

UNITED STATES ALEXANDER BRADFORD, OF

BAYNHAM, MASSACHUSETTS.

IMPROVED ANCHOR.

Specification forming part of Letters Patent No. 41,754, dated March l, 1864.

@ZZ whom it may concern.

Be it known that I, ALEXANDER BRAD- FoRD,`of Raynham, in the county of Bristol and State of Massachusetts, have invented new and useful Improvements in Ships Anchors; and I do hereby declare that the following is a full and complete description thereof, reference bezug` had to the aecompanying drawings, makinga part of this specilication, in which- Figure 1 is a view of the anchor herein described; Fig. 2, a view of one set of iiukes, and Fig. 3 a View of one set of the palms.

The improvement in this invention may more fully be shown by comparing the method of manufacturing anchors in common use with the manufacture of this one.

The present method of manufacturing anchors is to forge the shank, the tlukes, and the palms from separate pieces of iron, and then to weld `the palm upon the fluke, and the iluke to the shank; but in the making of anchors shown in thcsespeciflcations welding is done away with entirely.

The shank A is made of the desired dimensions, with a head forged upon the lower end, as shown at B. Each pair of flukes are of one solid -piece of iron, and the palms are forged upon the ends, not Welded. When thus forged t ley are as shown in Fig. 2. Two sets of these lukes are riveted to the shank-one set on each side thereof-immediately above the head, with the iiukes resting upon it, so that a large proportion of the strain, when in use, shall come against and be borne by the head B.

The palms of anchors in common use are nearly heartshaped, thus leaving deep shoulders on the side where they are welded to the dukes, into which shoulders the cable is liable to become entangled; but in this the palms are forged taper-in g on the inner as well as the outer sides, not leaving any shoulder to foul the cable.

I believe the improvements in this invention to be: First, the use offour' linkes-two on each side of the shank-instead of two, without materially increasing the amount of iron used, in comparison with other anchors of the same capacity; second, the palms being forged upon the ends of the lukes are not so liable to be broken off; third, being of the particular shape shown-that is, tapering toward the fluke, as well as from it, they are not liable to foul the cable; fourth, being double, or in pairs, the two palms together present a larger surface against the earth, when'buried in it, and consequently more effectually prevent the vessel from dragging; fifth, the iiukes being fastened to the-shank, against the head, by rivets, and assisted by thetwo braces D D, also riveted to the flukes at E E, its power to resist a strain is greater; sixth, by the use of two palms theymay be quently Will enter the ground more easily.

What l claim as my invention, and desire to secure by Letters Patent, is-.Y-

1. The shank A, having a head, B, forged upon it.

the shank by rivets, and supported by the braces D D, substantially as here shown.

3. The palms F F, substantially of the same shape as here shown, for the double purposes of entering the ground easily and of not fouling the cable, as above set forth.

ALEXANDER BRADFORD.

Witnesses J. A. WILLIAMs, WM. MUENTCHER.

made sharper or more pointed, and eonsel 2. The two setsof flukes, O C, fastened to