US2478342A - Anchor - Google Patents

Description

u 1949- c. c. THOMPSON Y 2,478,342

ANCHOR Filed April 24, 1947 ATTORNEY.

Patented Aug. 9, 1949 UNITED STATES PATENT OFFICE ANCHOR N Charles C. Thompson, McComb, Miss. Application April 24, 1947, serial No. 743,704

2 Claims. 1

My invention relates to anchors and in particular to anchors of the so-called non-fouling It is an object of my invention to provide an improved non-fouling anchor construction.

It is another object to provide an improved anchor of extremely simple construction having particular application to the securing of small vessels.

It is a general object to provide a rugged, light, easily fabricated, and cheap non-fouling anchor.

Other objects and various further features of the invention will be pointed out or will occur to those skilled in the art from a reading \of the following specification in conjunction with the accompanying drawings. In said drawings:

Fig. 1 is a top view of an anchor incorporating features of the invention; and

Fig. 2 is a sectional view of the anchor of Fig. 1, the section being taken along the line 2--2 of Fig. 1.

Briefly stated, my invention contemplates an anchor having a frame formed with bifurcated shank pivotally suspending a twin-bladed fluke from spaced points on said shank. In the form to be described, the frame is generally circularly formed as a loop of cylindrical stock and the fluke is suspended from generally diametrically spaced points on said loop. The fluke arms extend radially enough to intercept the shank, so that no matter which way the device may land on the bottom one of the fluke arms may engage the bottom and be locked against rotation by the action of the other fluke arm engaging the shank.

Referring to the drawings, my invention is shown in application to an anchor comprising a frame 5 in which fluke means 5 is pivotally suspended. The frame 5 includes a generally arcuately formed shank portion which in a single arcuate span may define two shank forks 1-8. The fluke means 6 is preferably suspended from widely spaced bearing portions 9l of the shank forks 1-8. In the form shown, the frame is bent up from a single elongated piece of cylindrical stock, and the bending is such as to have the frame 5 generally circular. A cable ring ll may be secured to the frame 5 between the shank forks 1-8; in the form shown the cable ring II is integrally formed of the same stock as the frame 5, as by a reverse twist, to produce an overall figure-of-eight structure. The loop defining the cable ring ll may be of lesser radius than the loop defining the frame 5.

It is preferred that the ends of stock formin the frame 5 terminate or abut each other at some point l2 away from the shank or towing end of the frame 5. In the form shown, this point 12 is generally opposite the cable ring 1 land intermediate the bearing portions 9l0 of the frame 5. If desired, the ends of the stock may be secured at 12, as by brazing or by a butt weld.

As indicated, for a non-fouling anchor the fluke means 6 preferably comprises two fluke arms l3--l4, and in accordance with a feature of the invention these arms may be integrally formed from a single strap which is centrally bent. For more effective securing to the bottom, the tips 15-46 of the blades of the fluke means 6 may be pointed. The arms l3-l4 !Of the fluke 6 may be pivotally suspended near the bend thereof, and in the form shown a shaft l1 effects this suspension. The shaft I1 may fit in the saddle between arms l3l 4 and be secured thereto as by welds or brazing I8.

In accordance with a feature of the invention, the ends of the shaft 11 are formed with shoulders 19-20 defining projecting journals 2l-22 to fit Within bearing means in the portions 9l0 of the frame 5. If desired, to enhance the effectiveness of the bearing suspensions, the portions 9IB may be more or less flattened from the bar stock of frame 5, so as to provide greater diametral support for the journals 2l-22 of the fiuke means. The preferred relation between the points of suspension for the fluke 6 and the length of fluke arms I3l4 is that the arms be long enough to intercept the shank 1-8. Since the shoulders l92ll serve axially to locate the fluke B, it may be said that in the form shown the distance between shoulders [9-20 is preferably less than the radial extent of fluke arms l3l4 from the axis of shaft l1.

It will be appreciated that I have described an extremely simple non-fouling anchor construction. The construction is not only simple to fabricate and'assemble but also to carry and use. These features are obtained without sacrifice of effectiveness for the size and weight of anchor. The particular form described may be readily assembled as by spreading the bearing portions 9I0 slightly to admit first one journal, say 2|, and then the other into its appropriate bearing.

While I have described my invention in detail for the preferred form shown, it will be understood that modifications may be made within the scope of the invention as defined in the appended claims.

I claim:

1. In an anchor, a frame comprising a single piece of bar stock formed into a cable loop and into two arms diverging from said cable loop, said arms having aligned bearing openings, 2. plntle having its ends revolubly mounted in said bearing openings, fluke means rigid with and carried by said pintie and comprising a fluke at each side of said frame and of a length to contact said frame for stopping said fluke means for the purpose set forth.

2. In amanchor; aframe comprising a single piece of bar stock formed into a cable'loop and 0 into two arms diverging from said cable loop.

fluke means pivotally mounted on and between said arms, said fluke means comprising a fluke at each side of said frame and of a length to contact said frame.

CHARLES C. 'IHOMPSO N. v

4 REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 262,254 Spedden Aug. 8, 1882 279,484 Rhoades Jan. 9, 1883 795,743 Ward July 25, 1905 FOREIGN PATENTS Number Country Date 4,446 Great Britain 1892 I Great Britain Oct. 4, 1912

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