US2606518A - Antifouling anchor - Google Patents

Description

Aug. 12, 1952 c. F. CHRISTIE 2,606,518

ANTIFOULING ANCHOR 7 Filed March 27, 1950 2 swarms-awn 1 Cleve F. Christ/e m 'EN TOR.

Aug. 12, 19 52 c. F. CHRISTIE 2,606,518

ANTIFOULING ANCHOR Filed March 27, 195o 2 SHEETS--SHEET 2 Cleve F. Christ/b INVENTOR.

Patented Aug. 12, 1952 2,606,518; ANTIFOULING ANCHOR Cleve: F. Christie, Knoxville, Tenn, assignor of ten. per cent. to. Dove A.. Harrison; Knoxville,

Tenn.

' 7 ApplicationMarch 27, 195,0, SerialNo.152)Q99 The present invention relates to new and useful improvements in anchors and more particularly to means for releasing the anchor when engagecl with submerged objects to prevent fouling of the anchor.

An important object of the invention is to provide means for releasing the flukes of the anchor,

when fouled with a submerged; object, by a twisting movementof the anchorrope.

Another object is to provide an interchangeable; anchor releasing device which may be used with various types of anchors; such as a folding anchor or a rigid, non-folding anchor.

A further object is to providev an anti-fouling anchor of simple and practical construction, which is efficient and reliable in operation, relatively inexpensive to manufacture and otherwise Well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a perspective view showing the invention used with a folding anchor;

Figure 2 is an enlarged longitudinal sectional view taken on a line 22 of Figure 1;

Figure 3 is a longitudinal sectional view showing the fiukes of the anchor released;

Figure 4 is a perspective view of the retrieving rods; and,

Figure 5 is a perspective View showing the invention used with a rigid, non-folding anchor.

Referring now to the drawings in detail, wherein for the purpose of illustration I have disclosed a preferred embodiment of my invention, the numeral 5 designates an anchor shank to one end of which an anchor lifting and lowering cable or chain 6 is attached by means of a ring I.

The other end of shank 5 is formed with a threaded head 8 connected to an internally threaded socket 9. A semi-spherical body is formed at the center of its rounded surface with a square stem ll having a reduced threaded stud l2 threaded in the base of socket 9 and locked therein by a cotter pin l3. The flat surface of body In is formed withan eye l4.

A pair of wire or other suitable metal rods I are formed at each end with loops l5 and I1, loops 16 of the rods being swivelly secured to the opposite ends of a connector plate [8 having a central opening IQ for slidably mounting the connector on shank 5 with said rods l5 at opposite sides of said shank 5. Y 7 r 2. Claims. (01. 114 2cs').

In the form of the invention illustrated in Figures 1 to 3 inclusive, a substantially'U-shaped anchor head is utilized as shown generally at 20 and which comprises-a pair of flukes 2f rigidly connected to each other by-a cross bar-22 having a substantially semi-spherical socket or recess at its center to separate cross bar 22 into a pair of aligned fluke arms 24 and 25, the socket being designated 25'.

Semi-spherical body In is swivellypositioned in socket 23 with stem ll swingable' in a slot 26 in the bottom of the socket transverse to said bar 22 to permit arms 24,, 25 to rotate about an axis transverse to the shank 5 and the fiukes 2| to swing about said axis from one side of shank 5 to the other, or to swing into a folded position parallel to shank 5, the swinging movement of the flukes being limited by stops 2'! at the ends of slot 26 and with which stem ll engages when said flukes 2| are swung from one side of said shank 5 to the other side thereof. Rods I5 are connected to arms 24 and 25, in other words, the cross bar 22 by the loops H in which said arms 24, 25, comprising the bar 22, are rotatable.

In the operation of the device, the flukes 2| swing downwardly below shank 5 when the anchor is lowered and anchor cable 6 holds the shank in an upwardly inclined position against one of the stops 2! to cause the ,fiukes to dig into the bottom of the river or other body of water.

Should the flukes become fouled with a rock or other submerged object which prevents raising of the anchor, the anchor cable is then twisted in a direction to unscrew head 8 of shank 5 from socket 9 to release anchor head 20 from shank 5, as shown in Figure 3, and connector plate l8 slides downwardly on shank 5 until it strikes head 8 and rods [5 then form a second lifting connecting means between shank 5 and anchor head 20 for freeing the fouled anchor. Cross bar 22 is rotatable in the loops ll so that flukes 21 may swing as previously described or into a position in longitudinal alignment with fiukes 2| to subject the fiukes to a straight rearward pull to free the anchor. As will be clear the head 8, socket 9, body [0, socket 25 and stem H form a threadedly connected coupling between the cross bar 22 and shank 5 uncoupled by twisting the cable 6.

The anti-fouling device may also be used with a rigid, non-folding type of anchor shown at 28 in Figure 5, by attaching eye I4 to the upper end of the rigid stem 29 of the anchor by a ring 30 whereby to form a swivel connection and attaching the loops ll of rods [5 to the fluke arms 3| or cross bar of the anchor. The shank 5 is released by twisting the anchor cable in the same manner as heretofore described and the fluke arms 3| or cross bar rotated in the loops ll of rods I5 50 that the flukes may swing from sideto-side of the shank 5 and also swing so that the rods l5 may exert a direct pull against the same when the stem 2| is uncoupled from the shank 5.

In view" of the foregoing description taken in conjunction with the accompanying drawings it is believed that a clear understanding of the device will be quite apparent to those skilled in this art. A more detailed description is accordingly deemed unnecessary.

It is to be understood, however, that even though there is herein shown and described a preferred embodiment of the invention the same is susceptible to certain changes fully comprehended by the spirit of the invention as herein described and the scope of the appended claims.

Having described the invention, what is claimed asnewis: .1-' Y l AnLanchOr comprising'a pair of flukes, a cross bar connecting said fiukes, an anchor shank, an anchor ,lifting andlowering cable attached to one end of the shank,- threadedly connected coupling; devices between said cross bar and the otherzend' of the shank uncoupled by twisting said cable to rotate the shank whereby to uncouple said shank from said bar when'the flukes become fouled, means connecting said bar to one of said devices for rotation relative to the coupling devices when coupled to provide for swinging of said flukes in opposite directions about an axistransverse to said shank, and a second lifting means connecting said bar to said shank for lifting said bar and fiukes through lifting of said shank by said cable after uncoupling of said shank from said bar comprising a centrally apertured plate through which said shank extends and having limited lateral sliding movement on said shank, and a pair of rods upon opposite sides of said shank having corresponding ends swivelly connected to said plate and loops on the other ends thereof in which said bar is rotatable for swinging f said flukes.

2. An anchor according to claim 1, wherein said first-named means comprises a swivel providing for limited rotation of said bar and limited swinging of said flukes from one side of the shank to the other side thereof with said bar rotating in said loops, said swivel including a socket in said bar slotted transversely of the bar, and a ball member rotatable in said socket and having a stem swingable in said slot.

CLEVE F. CHRISTIE.

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

UNITED STATES PATENTS Number Name 'Date 89,232 Morgan Apr. 20, 1869 242,958 Moule June 14, 1881 363,579 Best May 24, 1887 2,012,751 Buch et al. Aug. 27, 1935 2,377,054 Thayer May 29, 1945 2,415,605 Newby Feb. 11, 1947

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