US2748741A - Anchor having a slidable stock - Google Patents

Description

June 5, 1956 w, ABBOTT 2,748,741

ANCHOR HAVING A SLIDABLE STOCK Filed March 3O 1955 HEW; \i W new 11 Fl 6 5 INVENTOR.

William T. Abbofi ATTORNEY United States Patent ANCHOR HAVING A SLIDABLE STOCK William T. Abbott, Massapequa, N. Y.

Application March 30, 1955, Serial No. 497,997

3 Claims. (Cl. 114-207) This invention relates to anchors and more particularly to anchors having a moveable stock.

It is an object of this invention to provide an anchor having a moveable stock held captively to the shank.

It is another object of this invention to provide an anchor adapted to land on the ocean bottom with the flukes of the crown disposed in a manner to engage the ocean bottom.

It is another object to provide an anchor of simple and inexpensive construction and having the anchor stock moveably secured to the anchor shank in such a manner that the stock protectingly engages the flukes for safe storage.

These and other objects of this invention will become readily apparent on reading the following descriptive disclosure taken in conjunction with the drawing in which:

Fig. l is a perspective view of the anchor in open position for engaging the ocean bottom,

Fig. 2 is a perspective view showing the anchor adapted for storage with the stock engaging the flukes of the crown,

Fig. 3 is a view taken on line 3--3 of Fig. 2,

Fig. 4 is a view taken on line 4-4 of Fig. 2, and

Fig. 5 is a view taken on line 5-5 of Fig. 2.

Turning to the drawing, the anchor of this invention is provided with a shank of substantially a U-shaped profile or cross-section secured fixedly to a crown 11 having a pair of opposed flukes 12 secured thereto.

A longitudinal stock 13 having a U-shaped cross section is provided with an aperture 14 having the profile of the shank but of slightly larger dimensions. The shank 10 is provided with a 90 degree twist between the crown and the top of the shank.

The U-shaped shank 10 is disposed through the U- shaped aperture 14 (Fig. 5) of the stock, with the U- shape of the stock being directed toward the flukes 12 (Figs. 1 and 2) so that the flukes 12 are adapted to engage the U-shaped channel of the stock.

The shank 10 is provided with a plug 15, said plug having a cross-section substantially that of U-shape channel of said shank. The plug 15 is provided with a pair of spaced-apart screw threaded apertures 16 adapted to receive metal screws 17.

The shank 10 is also provided at the top thereof with a pair of screw threaded apertures adapted to mate with the apertures 17 of plug 15. The plug 15 is removably secured to shank 10 by metal screws 17 (Fig. 4).

The plug 15 is provided with a tubular opening 18 (Fig. 4) through which a steel cable 19 of lesser diameter slides. The location of tubular opening 18 in plug 15 is important and should be substantially in the center of plug 15 (Fig. 4).

The stock 13 is secured to an apertured guide 20 by means of a strap 21 integrally uniting said guide 20 to said stock 13.

The collar guide 20 is of rectangular peripheral contour having a pilot plate 22 secured fixedly adjacent to and at a right angle to strap 21 (Fig. 3). The plate 22 is 2,748,741 Patented June 5, 1956 of a configuration slightly less than the dimensions of the U-channel of the shank 10.

As shown in Fig. 3 the shank 10 is disposed through the aperture of guide 20 with the pilot plate 22 disposed in the U-channel of the shank.

The cable 19 is fixedly secured in a well disposed in stock 13 by any conventional means such as solder, etc. Clearly, pulling of the cable 19 pulls the stock 13 away from the flukes (Fig. 2) to a position adjacent plug 15 (Fig. 1) turning the stock through degrees during the movement of the stock between these two limits of travel.

As shown in Fig. 5 the stock 13 is provided with an integral plate piece 23 adapted to slide in the U-channel of shank 10 (Fig. 2) with the cable 19 secured fixedly in the center of said plate piece 23.

The pilot plate 22 of guide 20 in co-action with the plate piece 23 of stock 13 elfects a smooth and nonbinding movement of the stock over the shank 10. The cable 19 is provided with a holder ring 24 for fastening to a rope (not shown).

In the use of the anchor of this invention the cable 19 is held in the hands of the operator and the anchor thrown overboard into the water. Immediately the crown 11 and shank 10 secured thereto move under gravity outwardly from the stock 10, since the stock is fixedly secured to the held cable. However, before the stock 13 engages the plug 15 an intermediate rotation of 90 degrees of the crown 11 and shank 10 is effected.

The over-all result is that the anchor strikes the bottom of the sea with a fluke 12 disposed toward bottom of the sea.

In pulling up the anchor from the bottom of the sea, a lifting force exerted on cable 19 causes the stock 13 to ride up on shank 10 until stock 13 hits plug 15, since the crown 11 and flukes 12 engage the mud of the bottom of the ocean.

Further lifting force on cable 19 causes the crown 11 to be disengaged from the bottom of the ocean and to lift the anchor into the boat. After the anchor is on the boat the stock 10 is lowered by gravity upon the flukes 12 and the anchor is ready for safe storage.

This invention has been described by means of an embodiment but clearly other embodiments fall within its broad concept.

I claim:

1. A self-rotating boat anchor comprising a shank having a U-configuration cross-section and having a 90 degree uniformly disposed twist therein, a crown having opposed flukes secured fixedly to said shank, a longitudinal stock having a substantially U-shaped aperture therein mounted slidingly upon said U-shaped shank, a plug fitted in said U-channel of said shank and having a centrally disposed tubular opening disposed centrally in said U-channel of said shank, a collar guide having a pilot plate disposed in said U-channel of said shank disposed about said shank, a strap secured to said stock and said collar guide, and a cable disposed slidingly through said tubular opening and secured to said stock.

2. A sea anchor comprising a crown, a U-configuration twisted shank fixed to said crown, a stock slidably mounted on said shank, and guide means secured to said stock and slidable in the channel of said U-shaped shank.

3. The anchor of claim 2 wherein said guide means consists of a pair of spaced-apart plate pieces secured to said stock.

References Cited in the file of this patent UNITED STATES PATENTS 203,087 Swinburne Apr. 30, 1878 212,340 White Feb. 18, 1879 703,739 Rech July 1, 1902 2,533,586 Jones Dec. 12, 1950

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