US2845039A

US2845039A - Anchor hoist

Info

Publication number: US2845039A
Application number: US578441A
Authority: US
Inventors: Vernon E Robbins
Original assignee: Individual
Current assignee: Individual
Priority date: 1956-04-16
Filing date: 1956-04-16
Publication date: 1958-07-29
Anticipated expiration: 1975-07-29

Description

July 29, 1958 v. E. RoBBlNs 2,845,039

ANCHOR HoIsT v Filed April 1e, 1956 T'' I /5 l 2 l', d e" 5 L ffy' JMS W United States Patent O ANCHOR HOIST Vernon E. Robbins, Hayward, Calif.

Application April 16, 1956, Serial No. 578,441

6 Claims. (Cl. 114-210) This invention relates to devices for raising and lowering an anchor, and is more particularly directed towards an anchor hoist which is adapted to be secured to the bow of a vessel.

Various arrangements have been provided for small boats to facilitate the manual raising and lowering of an anchor, but all of such devices heretofore available possessed a number of shortcomings resulting in diculty in operation and/or inferior anchor securing. In fact, many such devices required the operator to crawl onto the bow of the boat in order to properly insure a securing and seating of the anchor, and in many of such devices it was not possible to prevent rotation or other movement of the anchor after the anchor cable had been lashed or otherwise secured to portions of the boat structure.

Accordingly, it is an object of the present invention to provide an anchor hoist which is extremely simple in construction and operation, and which will securely lock the anchor against any movement whatsoever relative to the boat after the anchor line has been secured.

Another object of the invention is to provide an anchor hoist of the character described in which the anchor shank is guided into a keeper member for proper posi-` tioning of the anchor and to prevent rotation of the anchor prior to final securing of the anchor to the hoist.

A further object of the invention is to provide an anchor hoist as hereinabove dened which may be operated from one of the sides of the boat rather than requiring a pull on the anchor cable in alignment with the longitudinal axis of the boat.

A further object of my invention is to provide an anchor hoist of the character described in which means are provided for insuring ready lowering of the anchor upon release of the anchor line notwithstanding the position of the secured anchor on the boat.

The invention possesses other objects and features of advantage, some of which, with the foregoing, will be set forth in the following description of the preferred form of the invention which is illustrated in the drawing accompanying and forming part of the specification. It is to be understood, however, that variations in the showing made by the said drawing and description may be adopted within the scope of the invention as set forth in the claims.

Referring to said drawing:

Figure 1 is a side elevational view of a portion of a boat equipped with the anchor hoist of the present invention, with the anchor shown in its fully raised position.

Figure 2 is a top plan view of the structure shown in Figure l.

Figure 3 is a front elevational view thereof.

Figure 4 is a view similar to Figure 1 but illustrating the position of the parts upon initial raising of the anchor.

The anchor hoist of the present invention is adapted to be secured on the bow 6 or any other suitable place on ice 4 a boat, and as hereinabove explained, is arranged to selectively raise and lower a conventional anchor 7 between a locked or secured position generally overlying the bow, and an operating position in the water in which the boat is disposed. As is well known, an anchor for a small boat will generally comprise a rectangular shankl portion 8 whose lower end is enlarged to provide a central crown 9 having a pair of oppositely directed arms 12, each of which terminates in a generally rearwardly extending palm or fluke 13, with the general plane of the palms dening an included acute angle to the longitudinal axis of the shank. The upper end of the shank 8 is suitably apertured to receive a clevis 14 in pivotal relation thereto, and to the clevis is fastened a line 16 by means of which the anchor is primarily raised and lowered.

The foregoing constructon is conventional in the art, and no further detailed explanation of the particular shape of the anchor or its other structural features need be discussed for the purpose of understanding the hoist of the present invention.

As will be seen in the drawing, my new anchor hoist includes a base member generally indicated by the numeral 21 which includes a generally at planar portion 22 which is adapted to be positioned on the bow of a boat and secured thereto such as by bolts 23 or the like. Integrally formed with base portion 22 and extending forwardly and upwardly therefrom is an extension 24 Whose distal end is formed as a guide loop 26 lying in a plane spaced from, but generally parallel to base portion 22. A slot 28 is provided in extension 24 in communication with the loop, and such slot is generally rectangular in cross section and of a width just sutlicient to freely receive the thickness of the anchor shank 8 but not the maximum width thereof. Also, for. a pur? of a pair of spaced ears 32 extending upwardly from the' base plate and provided with apertures suitably aligned with an aperture in the arm for receiving a pivot bolt 33. The arm is capable of swinging movement in a generally vertical plane from a first position wherein it overlies the upper surface 36 of the base member extension, to a second generally vertical position, and its movement is limted in this latter position by means of an adjusting bolt 38 which engages a portion of the base plate rearwardly of the pivot. A spring 41 normally urges the arm 31 to its lower overlying position since the respective ends of the spring are attached to the lower surface of the arm and the upper surface of the extension respectively. Thus, in normal position, Without an anchor being held thereby, the arm will be disposed in overlying relationship to the base member and resting on the upper surface thereof as shown in Figure 4.

The upper end of the arm is bifuroated to rotatably receive a sheave or pulley 42 which is adapted to slidably receive the anchor line 16 so that the operator, by pulling on the free end of such line, may effect a rotation of the sheave and a subsequent raising or lowering of the anchor.

With the foregoing construction in mind 1an explanation will now be made of the manner in which the anchor hoist of the present invention is adapted to operate. First, assuming the boat is at anchor, the arm Will be in the position illustrated in Figure 4 of the drawing, and overlying the base member extension 24. Then, as the operator commences pulling inwardly on the line 16 through the loop 26, the anchor will be raised until it acquires the position shown in Figure 4, with a-sutable washer 46 positioned adjacent the clevis 14 in engagement with the front surface 47 of thebifurcated end of the swinging arm. Thus, further pulling of the line 16 will result in the anchor and more particularly the enlarged washer 46` thereon pushing upwardly on the arm 31 against the resistance of spring 41. Upon initial raising of the arm 31, the upper end portion of anchor `shank 8 will merelybe conned within the relatively large loop 26 in the `base extension and it will be appreciated that the spacing between the loop arms 27 is greater than the maximum cross sectional width of the shank. Thus, at this initial engagement with the vbase portion there is no proper alignment ofthe anchor into its nal seated position. However, as the arm continues to rise towards its vertical position with a-resulting rearward movement of the anchor lugs Z9 or ared portion 30 will engage the anchor shank and will force the shank into the slot 28 wherein the anchor palms 13 Iare directed rearwardly and the shank held from further rotation due to the restricted width of the slot 28. Eventually, the lower portion of the shank will engage the rear end S1 of the slot and the arm 31 will `be in its stopped position with the bolt 38 engaging the upper surface of base plate 22. It s thenonly necessary to secure the line 16 in any suitable manner and the anchor will be properly held in its hoisted position without danger of any accidental movement.

To lower or drop the anchor it is merely necessary to release the line 16, at which time the weightof the anchor, coupled with the action of the spring 41 will cause the arm 31 to swing downwardly and a reverse action to that just described in connection with the Vraising of the anchor will be elected.

From the foregoing description it will be readily appreciated that while the device of the present invention is extremely simple in construction and operation, it fulfils a demand for a small anchor hoist adapted forpositioning on the bow of a boat so as to insure ease in raising and lowering of the anchor and a securing ofthe anchor against possible movement in its hoisted position, and likewise insuring against injury to the boatstructure such as by `normal movement of the anchor during the hoisting and lowering operation or which it is in its raised position.

What is claimed is:

1. A device of the character described comprising a generally horizontally extending base member, an arm, means pivotally attaching the lower end of said arm to `an upper surface portion of said base member, the distal end of said arm having a sheave rotatably mounted thereon, said base member having a fixed extension angularly offset from the general plane of said member and having =a slotted distal end portion, and said slotted portion having opposed guide means thereon for guiding an anchor shank within such portion.

2. An anchor hoist including a base member having a generally fiat first portion adapted to be secured to a horizontal boat surface Eand an angularly upwardly extending portion, the distal end of said latter portion having ia longitudinal anchor shank receiving slot therein, an arm pivotally secured to said base member and movable labout a transverse horizontal axis from a generally vertical position to a position overlying said angular base portion and extending axially beyond ,the same, and pulley means disposed on the end of said arm.

3. A device as set forth in claim 2 in which said slot diverges outwardly towards the distal end of said angular portion andcommunicates with an enclosed looped portion on said base member.

4. Ansanchor hoist comprising a generally horizontally extendingbase member having a lirst portion adapted to be secured to a portion of a vessel and a second portion `adapted to extend laterally beyond the vessel, an arm, means pivotally attaching the lower end of said arm to said first portion of said base member, the distal end of said arm having a sheave rotatably mounted thereon, said arm being movable from a first position overlying said base member in adjacent relation thereto to a second position extending upwardly therefromthe second portion of said `base member having a slot adjacent the distal end thereof and adapted to slidably receive the shank of an anchor, and said armvin said first position positioning said sheave beyond said slot.

5. A hoist as set forth in claim 4 in which spring means are provided interconnecting said base member and arm and normally urging said arm into said first position.

6. A device as set forth in claim 4 including an axially adjustable member interposed between said base member and the pivoted end portion of said arm adjustably limit- D ing themovemcnt of said arm into said second position.

References Cited in the le of this patent UNITED STATES PATENTS