US2940411A

US2940411A - Collapsible boat anchor

Info

Publication number: US2940411A
Application number: US686452A
Authority: US
Inventors: Russell W Bartels; Clarence E Martin
Original assignee: Individual
Current assignee: Individual
Priority date: 1957-09-26
Filing date: 1957-09-26
Publication date: 1960-06-14
Anticipated expiration: 1977-06-14

Description

JUN 14, 1960 R. w. BARTELS ETAL 2,940,411

` COLLAPSIBLE BOAT ANCHOR Filed Sept. 26, 1957 JN VE /v roes RUSSEL waa/P7115 CLA/FENCE f. M/F'T//V United States Patent il ii. ce

2,940,411 PatentedV June 14, 1960 coLLAPsnsLE BOAT ANCHOR Russell W. Bartels, General Delivery, Williston, N. Dak., and Clarence E. Martin, General Delivery, Crosby,

Filed Sept. 26, 1957, Ser. No. '686,452

s claims. (Cl. 114-208) lOur invention relates to new and useful improvements in collapsible boat anchors, particularly anchors for use with the sports of boating and iishing wherein relatively small boats areutilized, the principal object and essence of our invention being to vprovide a device of the character herewithin described which is foldable for storage and yet which is highlyeffective when in use.

ln thesport of fishing` and boating, it is usual to use either a rock on the end of a rope or a small solid anchor when it is desired to anchor the boat in any particular location remote from the shore. The rock has obvious disadvantages and the small solidanchor not only is a hazard in a small boat, but voften getsjammed in the rocky bottom of many of the inland lakes.

Our invention overcomes these disadvantages byproviding an anchor which is collapsible when in the boat yet which opens out when ready for use readily and easily. Furthermore, due to the novel construction of our anchor, it is virtually impossible for same to become jammed on the lake bottom due to the fact that the snatch clip can readily be removed hom the shank thus enabling the pull to be directed to the base of the anchor rather than the upper end of the shank.

Another object of our invention is to provide a device of the character herewithin described which is drawn up from the lake bottom in the retracted position therefore reducing considerably the tendency of conventional anchors to engage Weeds, moss, etc.

Yet another object of our invention is to provide a device of the character herewithin described in which the eective weight can readily and easily be changed according to circumstances.

Still another object of our invention is to provide a device of the character herewithin described which, when collapsed, is extremely compact and easily stored.

With the foregoing objects in view, and such other objects and advantages as will become apparent to those skilled in the art to which this invention relates as this specication proceeds, our invention consists essentially in the arrangement and construction of parts all as here inafter more particularly described, reference being had to the accompanying drawings in which:

Figure l is a. perspective View of our anchor in the extended position.

Figure 2 is a side elevation of our anchor in the raising position.

Figure 3 is an enlarged fragmentary section elevation of our anchor.

Figure 4 is an enlarged perspective View of the snatch clip and rope per se.

In the drawings like characters of reference indicate corresponding parts in the different gures.

Proceeding therefore to describe our invention in de tail, reference should be made to the accompanying drawings in which it will be seen that we have provided an elongated shank 1 preferably of square cross-sectional configuration. A base plate 2 is provided of substantially standing lugs 7 between which are supported the inner ends 8 of curved flukes 9. ln this connection, a pivot pin lll passes through the lugs and through a bearing 1.1 on the fluke end 8 so that the ukes are permitted to pivot within limits upon the base.plate. However, as the lugs are fed inboard ofthe edges 6, the llukes cannot extend beyond the position shown in Figure l.

A cylindrical weight 12 is apertured centrally to slide freely along shank 1, said Weight being provided with a plurality of grooves 13 upon the sides thereof. Pivot pins 14 span these grooves and act as support for one end 15 of links 16. The other or outer ends 17 of the links 16 are pivotally engageable between lugs 18 formed upon the inner faces 19 of the aforementioned ukes 9, pivot pins 20 connecting the links to the flukes. From the foregoing, it will be appreciated that when vthe weight is adjacent the base plate 2 as shown in Figure l, the links 16 extendthe tlukes'totheir fullest extent, but when the weight is slid alongv towards the upper end 21 of the shank l, then the links i6 draw the flukes upwardly so that they lie alongside, the shank l as clearly shown in Figure 2. The Weight 12 is variable in effect by the pro vision of one or more segments 12' which may be secured to the upper end of the weight by set screws as shown in Figure 1.

We have provided means for extending or retracting the anchor as desired, and in this connection a lifting ring 22 is secured to the underside 23 of the base plate 2. The anchor rope 24 is secured to tln's ring by the lower end 25 of the rope and a snatch clip 26 is lsecured to the rope a distance spaced from this lower end 2S. This snatch clip is spring-loaded and is preferably of square cross-sectional coniguration as shown in Figure 4 so that same will engage firmly around the shank l and will only be displaced by a relatively sharp jerk. y

ln operation, the anchor is preferably stored within the boat in the position shown in Figure 2. However, when it is desired to use the anchor, it is up-ended with respect to Figure2 so that the Weight 12 descends by gravity towards the base plate 2 thus extending the llukes 9. The rope is secured to the lifting ring 22 and the snatch clip engaged around the shank l so that the anchor takes up the position shown in Figure l whereupon it may be lowered to the lake bed and engaged in the usual manner.

lt will be observed that the normal steady strain upon the anchor rope will not disengage the clip and that the anchor will act as a normal anchor under these circumstances. However, when it is desired to raise the anchor, a sharp jerk or snatch is given to the anchor rope thus disengaging the clip 26 from the shank 1. This enables the strain to be placed directly upon the lifting handle 2 which up-ends the anchor, disengages sarne from any obstruction, and permits sarne to be raised readily.

As soon as the anchor is up-ended, the weight l2 moves towards the end 21 of the shank thus closing the ilukes to the position shown in Figure 2 so that the anchor can readily be Withdrawn and lifted from the water by means of the lifting ring 22. lt will also be observed that any moss or Weeds would automatically clear as the anchor is raised through the water in this position.

lf it is desired merely to move the position of the anchor, then a steady pull on the rope 24 will disengage the anchor normally without disengaging the snatch clip whereupon it can be raised clear of the bottom and be replaced when the boat has been re-positioned.

Since various modifications can be made in our inven- Y tion as hereinabove described, andmany apparently widely diierent embodiments of same n'iadevwithin the spirit and scope of the claims Without departing from such spirit and scope, Vit is intended that vall matter contained in the accompanying specication shall be interpreted as illustrativeV onlyand not in a limiting sense.

W'hat We claim as Vour invention is:

l. A collapsible boat anchor comprising in combination a shank, Va base plate secured to one end of said shank, and a plurality of linkes pivotally connected by'one end thereof to said base plate, a Weight on said Vshards sidable `therealong, and links pivotally connecting each of said'ukes to said weight whereby when said Weight is adjacent said base plate, Vsaid Ylinkes are extended and `when said Weight is towards theopposite end of said shank, said dukes are retracted, against said shank.

V2. The ydevice according Vto claim lV which` includes an anchor rope secured lto said base plate and a snatch clip .secured to said rope and detachablyxsecurable to saidshank.`

3. The Vdevice according ftovclaim l iniwhich said shank Y t r4. The device according to claim 2 in which said shank is of square cross-sectionalY configuration, said weight Vis cylindrical and is ap'ertured to slide on said'shank, a

pluralityio .longitudinalY grooves .in .the Asides of said weight, said links being pivoted within said grooves, the other ends of said links being connected to said ukes intermediate the ends thereof. l i

5. The device according to claim l in which said weight is provided with a plurality of .segments detachably securable thereon for varying the eiect ofsaid weight.

6. The device YaccordingY Yto claiin 2` in 'which' said weight is providedrwith aiplurality ofsegments detachably securable thereon for V:varying theefect of said Weight. Y Y Y Y 7. The device according to claim 3 in which said weight is provided with a plurality-of'segments detach- Vably securable thereon for varying the elect of said weight.

References Cited kin the file .patent UNITED STATES, PATENS