US1497693A - Anchor - Google Patents

Description

June 17 1924. I

D. M. MYERS 1497693 ANCHOR Filed March 18. 1921 A TTOHNEYS Patented June 17, 1924.

UNITED 1P ATE NT OFFICE.

ANCHOR.

Applicatiomfiled March 18, 1921. Serial No. 453,236.

To all who mil may concern: 7

Be it known that I, DAVID'MOFFAT 'Mrnns, acitizen of the United States, residing in the city, county, andState of New York, have invented certain new and useful Improvements in Anchors, of which a the following is a specification.

My invention relates to anchors and is particularly concerned with .anchorsof the pivoted fluke type.

The prim-aryobject of the invention is to provide an anchor .which is:,absolutely nonfouling,.i. e., which cannot-entangle therope or anchor cable. To this-endthe invention proposes to eliminate all upstanding projections, such as the upper fluke of "the ordinary anchor or theelbow in the stock thereof, about whic'hprojections the anchor-cable is liable to wind itself whfeirthe vessel is riding at anchor. The invention accordingly proposes an anchor having butas-sin-gle fluke pivoted atlthe crown: and provided with means which willcause the same to bite quickly when the anchor is drawn along the bottom, so that a quick grip is obtained. It proposes furthermore to eliminate the elbow of the ordinary stock andto substitute therefor a chain which will lie flat on the bottom when the anchor is in use and which will permit the stock to be placed alongside the shank and efiect economy of space when the anchor is stowed away.

i The invention, furthermore, proposes to provide means whereby the pivotal connection between the fluke and the shank may be conveniently inspected for wear so that the user can readily ascertain the condition of this vital part of the anchor.

The above and various other objects and features ofthe invention will be readily understood from the following description of a specific form of embodiment thereof, reference being had to the accompanying drawings, in which- Figure 1 is a perspective view illustrating one specific form of anchor embodying my invention;

Figures 2 and 3 show a plan view and side elevation, respectively, of the anchor of Figure 1;

Figure 4 is a View partly in section taken along lines 4 .l::ll1 Figure 3 .to illustrate a certain part thereof in detail, and

Figuref5 is a view showing anelevation of theleft end of Figure 3.

Similar characters of reference designate similarparts in each of the several views.

The anchor illustrated in the drawings consists of a bifurcated shank composed of strips o'f'steel '1 and *1" which, for partof thei-rlength, are spaced from each other by a separator 2 and abolt '3 and which, adjacent-one end are united and secured toeach other by rivets l. ,A fluke5 is pivoted on bolt '3, the crown 6 of the fluke being :for this purpose provided with coeax ial openings for receivingzthe bolt. The .crown is preferably cast integral withstheflukeitself, and strengthening iwebs 8 are provided at the'base of the flukeimieinforce the junction between :the fluke and :the crown. A substantially "V-shaped notchi Qds-providedin the outer face of the crown, the -depth of this notch being such that the bolt 3 passes through the notch adjacent its apex and is clearly visible when an inspection is made. The width of the crown is less than the distance between the forks of the shank so that owing to the clearance thus provided the crown may be shifted laterally and the parts of the bolt on which there is wear may be exposed and inspected. The sides of the crown terminate in forwardly projecting sharp edges 10 which will dig into the bottom when the anchor is drawn along, and thus exert a positive downward force or moment on the fluke 5 so that the same will bite quickly. A swift and positive hold will thus be obtained. It should be noted that the anchor will operate equally well with either face to the ground, the construction of the anchor being symmetrical. The edges 10 are wider than the remaining portions of the crown providing lugs 1O which engage the forks of the shank when the fluke reaches a certain predetermined position. This position is such as to provide the most favorable angle of entry of the fluke into the bottom when the anchor rests upon a com paratively smooth flat surface.

The fluke 5 is comparatively long and provided with a blade or palm 11 having ease of penetration.

a very sharp point 12. The sides of the blade are substantially parallel at the portions marked 13. By virtue of this the palm is given a greater area or holding power Without change in its sharpness or It will thus be seen that because of the length of the fluke, its angle of entry and'its blade area, the anchor has exceptionally large holding power and is quickto bite into the bottom;

.VVhen'the fluke is forced fully into the bottom the webs 8 also enter'the bottom and provide additional resistance to dragging.

The stock 14 consists of a straight rod having no elbow as in the usual construction, but beingprovided adjacent 'oneend With a chain 15, the links of which are of such size as to pass through the hole 17 in the shank, When the anchor is to be stowed .away, the stock is drawn out of hole 17 and placedlengthwise along the shank so that the chain 15v passes through hole 17 and serves to hold the stock connected to the remaining parts of the anchor, a ring 16 being provided-at the end of the chain to act as a stop. IVhen-the anchor is to be made ready for use, the stock is again drawn into hole 17 until the shoulder 18 engages the shank, A. key 19 is then inserted intofa 'keyway 20 to fix the stock firmly in the shank. A chain 21 serves to secure the key to the shank.

iVhile I have illustrated and described my invention in connection with only one preferred embodiment thereof, it will be understood. that I do not intend to limit myself to the specific embodiment shown,

but that I intend to cover my invention broadly in whatever form its principle may be employed.

lVhat I claim is:

1. An anchor comprising a shank, a stock slid-able in a hole in said shank, a chain afiixed to one end of said stock for passing through said hole so as to permit said stock to be laid alongside said shank, and a member associated with the end of said chain for preventing disengagement of said stock from said shank.

2. An anchor comprising a bifurcated shank, a bolt connecting the forks of said shank at their outer ends, a crown pivoted on said bolt, said crown being of less width than the distance between the forks of said shank and provided with an opening so that said bolt may be inspected for wear by shifting said crown thereon, a fluke extending from said crown and arranged to pass between the forks of said shank, said fluke having a blade provided with a portion having substantially parallel edges to pro-- vide a large holding surface having con1- paratively small resistance to entering the ground, and a pair of flanges extending laterally from said crown, each of said flanges being formed with an edge for engaging the ground and causing said fluke to dig in when said anchoris dragged along the ground, said flanges being of such width as to engage the said shank and limit the angle of movement of said fluke.

In testimony whereof I have atlixed my signature to this specification.

DAVID MOFFAT MYERS.

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