US2940413A

US2940413A - Davit unit for boat anchors

Info

Publication number: US2940413A
Application number: US773639A
Authority: US
Inventors: Earl E Sanders
Original assignee: Individual
Current assignee: Individual
Priority date: 1958-11-13
Filing date: 1958-11-13
Publication date: 1960-06-14
Anticipated expiration: 1977-06-14

Description

June 14, 1960 E. E. SANDERS 2,940,

DAVIT UNIT FOR BOAT ANCHORS Filed Nov. 13, 1958 2 Sheets-Sheet l INVENTOR Earl E. San days June 14, 1960 E. E. SANDERS DAVIT UNIT FOR BOAT ANCHORS 2 Sheets-Sheet 2 Filed Nov. 13, 1958 INVENTOR.

5291! F. Sanders nited Seam P fi 2,940,413 DAvrr non noAT Ancrioii's Eat-1 E. Sanders, Rte. 4, Box 3079, Modestq'Calif. Filed Nov. 13, 19 58, Ser. No. 773,639 8 Cliins. 01414 210 H The present invention relates to, and it is a major object to provide, a novel davit unit for dropping and'retrieving a forward anehor from a boat, particularly a relatively small boat of pleasure type and on which the anchor is carried on the deck adjacent the bow.

Another important object of the invention is to provide a davit unit which is actuated from a rearward point,"

such as the cockpit, on the boat, and so that there is no necessity of a person going forward on the deck and risking an accidental fall overboard; the device being worked from suchrearward point hy the simple manipulation of the anchor line and a separate control line. An additional object Qf the invention is toprovide a davit unit, as above, which includes a normallyhorizontal apron which supports the anchor on thejdeek; such apron, together with the remaining parts of the unit and under control of the lines, being operative to swingtheanchor to an outboard position; to then permit loweringand subsequent retrieving of the anchor; andafter the anchor is retrieved to return the same to its' position on the deck. A further object of the invention is to provide a d'avit unit, as in the preceding paragraph, wherein the apron serves to prevent theanchor from swinging against and marring or damaging-the bow" oradjacentsides of the bdat'duririg dr pp paqrr t y nsio s id-anch r .7

It islalso an objeet of this invention to-proyide a davit unit which is designed for ease and economy of manufacture, ready installation, and convenience of use. 7

Still another object of the inventionis to provide a practical, reliable, and quick-ready davit unit, and one which will be exceedingly effective for the purpose for which it is designed. e H 4, These objects are accomplished by means of such struc ture and relative arrange ment of parts as will f ully appear by a perusal of the following specification and claims. In the drawings: V H

Fig. 1 is a top plan viewof the davit unit in its initial position and asirnounted on the forward deck of a boat; there being only a fragmentary showing" ofthe latter.

Fig. 2 is a front end elevation of the davit unitin the sameposition. V i i V d N Fig. 3 is a side elevation of the same in such position. Fig. 4 is'a sideelevation of the davit unit; the View showing the in-use position of the davit unit-infull lines-and an intermediate position-in dash linesf Referring now more particularly-to the"drawing's, and to the, characters of reference marked thereon; the' davit unit is indicated generally atl, and is mounted ori the" forward deck 2' of a boat" 3 adjacent the bow thereof, and centrally of the sides. 7 p 7 V The davit unit Land by reference to the positilo no'f itspaits in'the initial pisition" supporting an anchor on the; forward deck of thefboat, comprises a longitudinally extending, swingable frame; indicated generally at .4 Such frame 4 include sfafrontlcross shaft 5 journaled at its ends in 'ey'es'fi'whichafe fix'eiiir'i cbhnction with 2,940,413 Patented June 14', 1960 2 upstand from the deck 2 in transversely spaced, alined a o -1... .7

Transversely spaced side rods 7 are fixed. at their forward ends to the front cross shaft 5, and thence extend rearwardly some distance in parallelism and then merge in integral relation with a half-elliptical, rearwardly projecting bail 8.

ln their initial position the side rods 7 extend at an upward and rearward incline fromthe front cross shaft 5; the hail 8 .then projecting rearwardly from said side rods with a slightdownward and rearward incline;

U At the rear end, and centrally thereof, the ball is fitted with a sheave block 9 which carries a transverse axis sheave 10; such sheave block 9 norrnally resting on a cushion pad 11 secured to the deck 2.

A crossbar 12 is rigidly connected to and extends between the rear ends of the side rods 7; i.e., at the front cnd'of the bail 8. A longitudinal anchor supporting plate or apron 1 3 is disposed above theframe 4 forwardly from adjacent the cross bar 12; such apron 13 being hinged at its rearedge and at transversely spaced points to the crossbar 12, as at 14.

The apron 13 is of a width and length to receive and support an anchor 15 which includes a rearwardly extending shank 16 havingan eye, 17 on the rear end thereof. Upstanding side flanges 18 on the apron 1 3 prevent accidental escape. of the anchor laterally from such apron 13 inthe event of excessive rocking of the boat.

; The forward endportion of the apron13 is tapered in substantially matching relation to the corresponding'portiorr of the'deck 2, and suchapron is supported at its front endportion, and from the deck, by a" post 19 fixed on the latter in a central position transversely of saiddeck. I

The apron 1 3 ;in its initial or normal position and as supported at the rear end from the cross bar 12,. and atthe front endportion by the post19, isv substantially horizontal. The anchor line 20 is' connectedatits-for ward end, as at 21, to the eye 17 on the anchor shank 1'6, and said anchor line 20 thence extends rearwardly,

passes over the sheave 10 under the rear of the bail 8,

and thenruns rearwardly to a point on the boat, as at the cockpit (not shown); the sheave block 9 and sheave 10 thus forming an anchor line guide.

A separate control line 22 isconnected, as at' 23, to the crossbar 12 intermediate its ends, and such separate control line 22 thence extends forwardly and is turned; from the top, about a sheave 24 journaled in an upwardly opening fork 25 formedon th'e' -post 19. From the bot tom of the sheave 24 the separatecon'trol line 22 extends rearwardly to the same point on the boat as doesthe anchor line 20. i

When it is desired to drop the anchor 15, the operator, from his rearward station on the boat, manually grasps both the anchor line 20 and the separate control line 22 and pulls rearwardly on the latter, while said anchor line ispermitted to correspondingly pay out. This causes the frame 4 to swing upwardly and forwardly, about cross shaft 5 as an axis, until said frame is slightly in front of top dead-center. The'reafter'yasthe frame 4 begins to graw'tationally fall or swing forwardly and downwardly (and at which time eye 17 stops at sheave 10), such motion is controlled or restrained by gradually paying ahead of the bow, and at such time the separate control line '22 extends substantially straight forward beneath sheave 24, and any slack is-drawn out of such line.

, As the framed is swung forwardly through its full am'br movement, asjabovedescribed, the apror i,-as

lines in Fig. 4.

The anchor 15, by reason of. the manual control of anchor line 20, re'inain's" on the apron 13 it is-elose to its-vertical position (see the dottedfne position in Fig. 4) andthen the'anclior'swinfgsforwa'rdly fromtlie' apron and 'depends'dir'ectly from the sheave 10. Thereafter, the anchor line-20 out freelyyso that the anchor drops into the' waterclear of the boat and without the possibility of striking against and matting or damaging the bow or the adjacent-boat sides. To retrieve the anchor, the above described operation is repeated, but in'reverse. By pulling in the anchor line 2-0'the anchor 15 is first lifted until eye 17 stops at sheave 10. Thereafter, and with continued pulling in of said line 20, the frame 4toget h er"with apron 13 and the anchor 15 which swings back ontosaid apron-is swung upwardly and rearwardly to a' point slightly back of top dead-center. -At such time the separate-control line 22,

and which has returned to sheave 24, is'aga'in brought into play," and is used to gradually lower the frame'4, apron13, and anchor 15 to the initial or starting position on the deck.{ As this is occurring, the anchorline 20 can be slacked slightly to allow the anchor to assume a centered position on the apron, as'shown in Fig. 1.

; by the simple expedient of manipulating the lines 20 and, the anchor 15 can be readilygand quickly launched or dropped andthereafter retrieved and returned to the deck; all in a manner which assures that the anchor cannot accidentally swing against the boat; 5

:From the foregoing description it' willbe readily seen that there has been produced sucha device as willsubstantially fulfill the objects of the invention, as set forth herein: i

fiwhile'thisspecification sets-forth in detail thcjprcsent and preferred construction of the device, still in practice such deviations from such detail may be resorted to as the deck, means pivoting the frame at one end on the deck for swinging between a normal position projecting rearwardly and a working position projecting forwardly, the other end of the frame being rearmost in said normal position and a distance ahead of the bow in said working position, a normally longitudinally extending apron above the frame, means pivoting'the apron at its rear end on the frame intermediate the ends of the latter, the anchor line connected to the frameand likewise extending to dolnot form a" departure from the spirit of the invention,

as defined by the appended claims,

: 'Having 'thus described the invention, the following is Patent are desired:

"ilz'An anchor davit unitffor a boat having adeck' adjacent the bow, comprising a longitudinal frame above the'deck, means pivoting the frame'at jone end on the deck. for swinging between a'normal position projecting rearwardly and a working position projecting forwardly, the'other end of the frame being rearrnost in said normal position'and a distance ahead of the bow in said working 7 claimed as" new and useful, and upon which Letters a position, a normally longitudinally extending apron above the'frame, means pivoting the apron at its rearend on the frame intermediate the ends of'the latter, the anchor normally being carried on said apron, 'an anchor line con nected to and extending rearwardly fromthe' anchor to a control point rearwardly of the frame, a guide on the frame at said other end, the anchor line extending through a sa d guide, the. apron and anchor thereon being advanced beyond the bowupon swinging of the frame between said normal; position and ,said working position, "the apron then depending from the, frame iahead of the bow sand the anchor depending from said guideahea'd of the apron, and means connected; to the frame and operative from saidcontrol point arranged to effect swinging of the frame between said normal and working positions. a

anchor davit" unit, for a boat having a deck ad acent the bow, comprising a longitudinal frame'above said control point arranged to effect swinging of the frame between said normal and working positions.

3. An anchor davit'iinit, as in claim 2, in which said last namedme'ans includes asheave mounted on' the deck ahead of the said frame pivoting means; said separate line being attached ;to the'frame rearwardly of the said sheave, thence normallyextending forwardly and passing about the sheave, and 'then'running 'rcarwardly to said controlpoint. p 4. An anchordavit? t, asrin' claim 3, including a post upstanding from the deck and normally supporting a front portion of the apron; the said sheave beingjournaled'on the post. i

a 5. An anchor davit unit,'for' a boat having a deck adjacent the bow, comprising a longitudinal frame above the deck, means pivoting the frame :at one 'end on the deck for swinging between a normal position projecting rearwardly and a working position projecting forwardly, the other end of the frame said normal position and a distance ahead of'the bow in said working position, a normally longitudinally extendingapron above the frame; means pivoting the apronat its rear end on the frame intermediate, the'ends of "the latter, the anchor normally being carried 'on said ap'ron,an anchor line connected to and extending rearwardlyfrom the" anchor to a control point rearwardly of the frame, a guide on the frame at said other" end,- the anchor line extending through'said guide, the apron and anchor thereon being advanced beyond the=bowfupon swinging of the frame between said normal position and said working position, the apron then depending from the frame ahead of the bow,'and'means connected to said frame and operative from' said control 'pointarranged to efiectswinging of the frame betweensaid' normal and working positions.

6. An anchor davit unit, for a boat having a deck adjacent the bow, comprising a longitudinal frame above the deck, means p'ivotingthe frame at oneend' on the deck for swinging between anorm'al position projecting rearwardly and a working position projecting forwardly, the other end of the frame being rearmost in said normal position and a distance ahead of the'bow .in said working position; a normally longitudinally extending apron above the frame, means pivoting the apron at its rear end on the frame intermediate the'ends of they latter, and including a cross bar on'the frameinte'rmediate its ends and; hinge elements on the apron engaging said nected to the frame and operative from said control point arranged to effect swinging of the frame between said normal and working positions.

7. An anchor davit unit, as in claim 6, in which the frame includes a bail normally projecting rearwardly from said intermediate cross bar; said guide including a sheave mounted on the bail.

8. An anchor davit unit, for a boat having a deck adjacent the bow, a longitudinal frame normally disposed above the deck, said frame including a front cross shaft, transversely spaced side members extending rearwardly from the front cross shaft, a rearwardly projecting bail connecting between the side members, and an intermediate cross bar spanning between said members; means including said front cross shaft pivoting the frame on the deck for swinging between a normally rearwardly projecting position and a forwardly projecting working position, the said bail being rearmost in said normal position and foremost and extending ahead of the bow in said working position, a normally longitudinally extending apron above the frame, means hinging the apron at its rear end to the said intermediate cross bar, a post upstanding from the deck and normally supporting the forward portion of the apron, the anchor normally being carried on the apron, an anchor line connected to and extending rearwardly from the anchor to a control point rearwardly of the frame, a sheave fixed centrally on the hail, the anchor line passing over the sheave, the apron and anchor thereon being advanced beyond the bow upon swinging of the frame between said normal position and said Working position, the apron then depending from the frame ahead of the boW and the anchor depending from said sheave, and means controlled from rearwardly of the frame arranged to effect swinging of the frame between said normal and working positions; said last named means including a sheave journaled on said post, and a separate control line attached to said intermediate cross bar, thence normally extending forwardly and passing about the sheave on the post, and then running rearwardly to said control point.

References Cited in the file of this patent UNITED STATES PATENTS 1,640,672 Schauman Aug. 30, 1927 2,333,836 Whitney Nov. 9, 1943 2,506,893 Rogers May 9, 1950 2,734,475 Fyock Feb. 14, 1956