US3306248A

US3306248A - Boat anchor

Info

Publication number: US3306248A
Application number: US471031A
Authority: US
Inventors: Horace C Austin
Original assignee: Individual
Current assignee: Individual
Priority date: 1965-07-12
Filing date: 1965-07-12
Publication date: 1967-02-28
Anticipated expiration: 1984-02-28

Description

H. C. AUSTIN Feb. 28, 1967 BOAT ANCHOR Filed July 12, 1965 INVENTOR HORACE C. AUSTIN ATTORNEYS United States Patent Ofitice 3,306,248 BOAT ANCHOR Horace C. Austin, 1342 Fla-Mango Road, West Palm Beach, Fla. 33611 Filed July 12, 1965, Ser. No. 471,031 2 Claims. (Cl. 114-208) This invention relates to a boat anchor provided with an air chamber for orienting and pointing the pointed flukes of the anchor into the earth for anchoring the boat.

An object of this invention is to provide an improved anchor for boats, said anchor having one or more pointed flukes with a shank pivotally attached thereto and an air chamber rigidly attached to the other ends of said flukes to give 'buoyance thereto and orient the pointed ends thereof into the earth for anchoring the boat.

Another object of this invention is to provide a boat anchor having a pair of flukes, each of which is of T- shaped cross section tapered to a point at one end, the other ends of said flukes being attached to a side of a cylindrical air chamber for giving these ends of the flukes buoyance and orienting the pointed ends of the flukes into the earth for anchoring the boat attached to the anchor.

Other and further objects of this invention will be apparent to those skilled in the art to which it relates from the following specification, claims and drawing in which, briefly:

FIG. 1 is a perspective view of an anchor constructed according to this invention;

FIG. 2 is a sectional view taken along the line 22 of FIG. 1; and

FIG. 3 is a side view of the anchor of this invention showing the shank positioned between the flukes parallel thereto.

'Referring to the drawing in detail, reference numeral designates an air chamber of cylindrical shape having the ends thereof sealed by suitable end members that are welded, brazed or soldered, or similarly connected or cemented thereto. The chamber is sealed so that air trapped therein cannot be displaced by water when the anchor is in use and thus the chamber functions to give buoyance to the ends of the flukes 11 and 12 attached thereto. The anchor is provided with flukes 11 .and 12, each of which have one end thereof attached by welding, brazing or suitable cementing to the side of the air chamber 10. The other ends of the flukes 11 and 12 are pointed and the air chamber orients the anchor with these ends pointed into the earth when the anchor is in use.

The flukes 1-1 and 1 2 are of T-shaped cross section and they are attached to the air chamber 10 so that the central ribs 11a and 12a thereof lie substantially in the same plane. The members 111) and 12b of the flukes 11 and 12, respectively, are spaced slightly from each other so that a space for the shank 13 is provided therebetween. The stems 11a and 12a of the T-shaped fi-ukes 1-1 and 12, respectively, are attached along corresponding ends thereof to the air chamber 10 in a direction substantially parallel to the length axis of the chamber, whereas, the corresponding ends of the tops 11b and 12b of the T-shaped flukes are attached to the chamber 10 across this axis. This mode of attaching the

fluke members

11a, 11b, 12a and 12b to the chamber 10 results in a strong anchor structure.

The stock 14 comprises a rod that passes through the flukes 11 and 12 and it is brazed or welded, or otherwise attached thereto. While the stock 14 is shown as attached to fluke members 11a and 12a in gaps or cuts formed through these members, it may 'be attached to these members along one side thereof by welding or 3,306,248 Patented Feb. 28, 1967 brazing thereto, and the holes formed in the fluke members 11b and 12b may be slightly displaced from center lines of these members, if desired. A suitable hole is formed in one end of the shank 13 for receiving the stock 14 whereby the shank is attached to the anchor structure. The other end of the shank 13 is provided with a hole for receiving the end link of the anchor chain 15.

Plates

17 and 18 are attached to the fluke members 11b and 12b, respectively, to one side of the stock 14 and adjacent thereto. These

plates

17 and 18 are provided with holes 17a17b and Isa-18b, respectively. The holes 17a and 18a receive pin 19 which may be positioned in corresponding aligned holes of the

plates

17 and 18, and a similar pin is positioned in selected aligned

holes

17b and 18b. Thus, by placing these pins in different aligned holes in

plates

17 and 18, the angle of the shank 13 with respect to the flukes of the anchor may be adjusted for different earth conditions on the bottom of the river, lake or sea in which the boat is to be anchored.

The volume of the air chamber 10 depends upon the weight of the anchor. In actual use I have found that an anchor for use with small boats in which case the anchor weighs about one and one-half pounds, a chamber having a diameter of one and one-half inches, and a length of four inches is satisfactory. These values and dimensions are given only by way of example and it is not intended that this invention be limited thereto as other dimensions may be used in larger anchors.

While I have shown a preferred embodiment of the invention it will be understood that the invention is capable of variation and modification from the form shown so that its scope should be limited only by the scope of the claims appended hereto.

What I claim is:

1. In a boat anchor the combination of a pair of flukes, each of said flukes comprising two elongated triangular plates, one of the long sides of one of said triangular plates being attached substantially to the center of the other so that the fluke formed thereby is of T-shaped cross section, each of said flukes being tapered. substantially to a point at the earth-engaging end thereof, an elongated cylindrical member, means attaching the other ends of said fi-ukes to said elongated cylindrical member, the central ribs of the T-shaped cross sections being attached to said elongated cylindrical member so that they are in alignment with each other and substantially parallel to the axis of said elongated cylindrical member, the tops of the T-shaped cross sections of said flukes being attached to mid portions of said cylindrical member adjacent to each other between said ribs and substantially at right angles to said axis, said top of said T-shaped flukes having a width substantially equal to the diameter of said cylindrical member, a shank, means pivotally attaching said shank to said flukes, and means limiting pivotal movement of said shank with respect to said flukes, said cylindrical member comprising a sealed hollow chamber providing buoyancy to said other ends of said flukes to orient the pointed ends thereof downward and facilitate penetration of the earth thereby.

2. In a boat anchor the combination of a pair of flukes, said flukes each being of T-shaped cross section tapering substantially to a point at one of the ends thereof which form the earth-engaging ends, an elongated cylindrical member, means rigidly attaching the wide ends of said tapered T-shaped flukes to said cylindrical member back to back so that the tops of said T-shaped flukes are adjacent to each other and extend substantially across the mid portions of said cylindrical member and the stems of said T-shaped flukes are aligned with the axis of said cylindrical member and extend substantially over the length of said cylindrical member, a shaft attached to said 3,306,248 3 4 flukes extending therebetween adjacent to said cylindrical References Cited by the Examiner member, a shank pivoted on said shaft, plates attached to the tops of said T-shaped il'ukes adjacent said shaft and UNITED STATES PATENTS on opposite sides of said shank, said plates having means 216961186 12/1954 Wilson 114 208 limiting the pivotal motion of said fiukes with respect to 5 2,789,526 4/1957 GQnner 114 -208 said shank, said cylindrical member comprising a sealed 2,981,219 4/1961 Wmslow 114 -208 hollovv chamber providing buoyancy to said other ends MILTON BUCHLER, Primary Examiner. of said flukes to orient the pointed ends thereof downward and facilitate penetration of the earth thereby. BLIX, AS51510"? Examine!-

Claims

1. IN A BOAT ANCHOR THE COMBINATION OF A PAIR OF FLUKES, EACH OF SAID FLUKES COMPRISING TWO ELONGATED TRIANGULAR PLATES, ONE OF THE LONG SIDES OF ONE OF SAID TRIANGULAR PLATES BEING ATTACHED SUBSTANTIALLY TO THE CENTER OF THE OTHER SO THAT THE FLUKE FORMED THEREBY IS OF T-SHAPED CROSS SECTION, EACH OF SAID FLUKES BEING TAPERED SUBSTANTIALLY TO A POINT AT THE EARTH-ENGAGING END THEREOF, AN ELONGATED CYLINDRICAL MEMBER, MEANS ATTACHING THE OTHER ENDS OF SAID FLUKES TO SAID ELONGATED CYLINDRICAL MEMBER, THE CENTRAL RIBS OF THE T-SHAPED CROSS SECTIONS BEING ATTACHED TO SAID ELONGATED CYLINDRICAL MEMBER SO THAT THEY ARE IN ALIGNMENT WITH EACH OTHER AND SUBSTANTIALLY PARALLEL TO THE AXIS OF SAID ELONGATED CYLINDRICAL MEMBER, THE TOPS OF THE T-SHAPED CROSS SECTIONS OF SAID FLUKES BEING ATTACHED TO MID PORTIONS OF SAID CYLINDRICAL MEMBER ADJACENT TO EACH OTHER BETWEEN SAID RIBS AND SUBSTANTIALLY AT RIGHT ANGLES TO SAID AXIS, SAID TOP OF SAID T-SHAPED