US602719A - Anchor - Google Patents

Description

(No Model.)

LA MONT M. BOWERS. ANCHOR.

No, 602,719. Patented Apt-19, 1898.

UNITED STATES PATENT OFFICE.

LA MONT M. BOlVERS, OF CLEVELAND, OHIO.

ANCHOR.

SPECIFICATION forming part of Letters Patent NO. 602,719, dated April 19, 1898.

Application filed S t b r 21, 1897. Serial No. 652,412. (No model.)

To all whom it may concern:

Be it known that 1, LA MONT M. Bownns, a citizen of the United States, residing at Cleveland, in the county of Ouyahoga and State of Ohio, have invented certain new and useful Improvements in Anchors; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

Myinvention relates to those anchors which are provided with separable fiukes, and especially to those which rock laterally on the shank.

The object of my device is to provide a superior construction whereby. the parts are greatly strengthened at the points where the two fluke-sections are joined and secured to the shank, all of which will be more fully described hereinafter and pointed out in the claims.

In the accompanying drawings, Figure 1 represents a side elevation of my complete invention in which the head portion of one of the fiukes is cut away to show how it is connected with the shank. Fig. 2 is an end view wherein dotted lines indicate the flukes rocked over in oblique relation to the shank. Fig. 3 is a bottom view of the fluke-head, showing the manner in which the jointed sections are locked together; and Fig. 4 is a detail end view.

The reference-numeral 1 denotes the anchorshank, on the lower end of which is What for convenience will be termed a cross-arm 2. This cross-arm is round in cross-section and tapers gradually from its center to its outer ends, thereby forming two frusto-conical trunnions, having a common longitudinal axis and placed base to base. The longitudinal surface of the cross-arm from end to end forms the arc of a circle. The widest diameter of the cross-arm lies at the point where the longitudinal axis of the shank 1 intersects the longitudinal axis of the cross-arm, and both cross-arm and shank are of the same or substantially the same width at that point. This gives a full-width support for the fluke-heads 4, insuring much greater strength.

The fiukes 5 are cast integral with their heads 4: and are duplicates. Hence a description of one will suffice for both. The head 4 is provided with a socket 6, having a size and shape to fit one-half of the cross-arm. The heads are held against longitudinal separation by bolts 7 extending parallel with the arm.

8 represents the crown of the head portion. This crown is made thick and strong, so that it will not be appreciably weakened by the insertion of the bolts.

The head-sections are locked at the joint 12 against lateral or torsional separation in relation to each other by interlocking lugs or tenons 9, cast integral with the crown or head portion 8. Each lug projects an equal distance into a corresponding recess 10 in the opposite section, thereby making the sections interchangeable. The lugs 9 and recesses 10 extend from the bottom of the socket 6 to the outside surface of the crown, or, in other words, throughout the full transverse thickness of the crown 8. This arrangement provides a fiush joint and avoids the use of projecting flanges and bolts such as have for merly been employed for the purpose of resisting torsional strain.

The upper part of the head is chambered out to receive the shank and to form divergent abutting sloping walls 11, which come in contact with the side of the shank, as seen in dotted lines in Fig. 2, to limit the lateral oscillations of the fiukes. The cross-arm fits snugly in the sockets in the head, and while permitting the latter to rock freely thereon excludes gravel and other troublesome matter.

The heavily-reinforced crown, the integral heavy cross-arm, and the interlocking lugs are features which combine to make my anchor exceedingly strong at the point of at tachment to the shank,where the other flukeheads are the weakest.

When excessive strain sufficient to break off one of the fiukes is brought to bear upon the anchor, the broken fluke can be replaced, without the loss of the entire anchor, by a duplicate part.

In large costly steel anchors 10o weighing many tons the saving of one-half the head and one fluke is of great importance.

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

1. In an anchor, the combination with the shank and cross-arm thereon, of a separable fluke-head composed of two duplicate sections, and provided with interlocking lugs at their point of juncture,whereby the sections are locked against torsional strain in relation to each other, and are interchangeable, substantially as described.

2. I11 an anchor, a shank provided with trunnions, in combination with a jointed or separable fluke-head, the sections of which are secured against pulling apart longitudinally, by bolts, and against torsional or lateral strain in relation to each other, by interlocking lugs, substantially as described.

3. An anchor comprising the usual shank having frusto-conieal trunnions on which the fluke portion rocks, in combination with a separable fluke portion, the sections of which are secured together longitudinally by bolts, and held against turning laterally in relation to each other by interlocking lugs, substantially as described.

In witness whereof I affix my signature in presence of two witnesses.

LA MONT M. BOWERS,

Witnesses:

J. H. SHAW, W. T. SEABORN.

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