US1640671A - Davit - Google Patents

Description

Aug. 30, 1927.

B. M. SCHAUMAN H DAVIT 2 Sheets-Sheet 1 Original Filed Aug. 5, 1922 1927' B. M. SCHAUMAN DAVIT Original Filed Aug. 5, 1922 2 Sheets-Sheet 2 Patented Aug. 30, 1927.

PATENT macs- UNITED STATES BROB MAX SCHAUMAN, or ATLANTIC HIGHLANDS, NEW JERSEY, assrenon 150 AN ASSOCIATION COMPRISING GRANDIN V. JOHNSON, OTTO GAU'TSCHY, AND HARRY W. JOHNSON, ALL OF HIGHLANDS, NEW JERSEY; WILLIAM KOCH, OF LONG BRANCH, NEW JERSEY; AND

BROR MAX SCHAUMAN, OF ATLANTIC HIGHLANDS,

NEW JERSEY, ONE-FIFTH TO EACH MEMBER. v

DAVIT.

Application filed August 3, 1922, Serial No. 579,369.

This invention relates to ships davit contrivances for facilitating the lowering an raising of a ships anchor without fouling the sides or injuring the deck of the vessel. To carry out the invention the ship is pro- 'vided with a carrier which supports the anchor in its raised position. Said carrier is rovided with a swingable portion to which the anchor is attached, and the construction is such that when the carrier is in its outermost position said swingable portion swings ciear of the vessel and hence permits the anchor to engaging any partof the ship. The carrier remains in its outermost position while the anchor is in lowered position, so that when the anchor is raised it rests first upon the swingable portion clear of the vessel, and said swingable portion is then rotated to its initial position upon the carrier and the latter drawn inwardly. I v A It is a further object of this invention to provide means whereby the anchor upon being raised will adjust itself in position upon the swingable member.

Another object of this invention is to provide means whereby the anchor willbe automatically locked in position upon the carrier, thus preventing slipping or rocking of the anchor due to the motion of the vessel.

7 Other features and advantages will hereinafter appear.

In the accompanying drawings:

Figure 1 is a side view, partly sectioned,

showing my invention applied to a vessel, the anchor being in raised position and resting upon the carrier V --y Figure 2 is a view similar to Figure 1, but with the anchor in position for lowering;

Figure 3 isa view similar to Figures 1 and 2, but with the anchor in position upon the swingable member just before the latter is drawn upon the carrier;

Figure a is a perspective view of the carrier and its support; Y

Figure 5 is a plan view of the carriersupport; v

Figure 6 is a detail perspective view "of the upper end of the movable member showing the means whereby the anchor is properly positioned upon the support;

be lowered without I ing the anchor there is Renewed November 17, 1926.

Figures 7 and 8 are enlarged details showing how the upper end of the movable mem-' ber operates to position the anchor properly with respect to the support; 7 Figures 9 and 10 are views of the lower end of the movable member showing additional means for properly positioning and supporting the anchor thereon.

Referring to the drawings,

a portion of a vessel having a side 10 and a there is shown deck 11, the davit contrivance being shown I applied to the deck. with an anchor which may be of any ordinary type and has preferably a shank 12, a stock 18, a ring 14 at one end of the shank,

and arms 15 at the other end of the shank,

said arms being in a plane perpendicular to the plane of the shank and stock. For raisprovided the usual cable "17 tied to the ring 14 at one end, and

the other end of the cable being wound'by any suitable mechanism, such a winch. The anchor is lowered; of course, by releas ing the cable so that the anchor can fall under its own weight.

It is desirable that V of the vesseh For this purpose there must be provided'means whereby the anchor may be carried from the deck of the vessel to a point beyond'the side thereof before'the anchor is allowed the anchor may be fully raised and returned to the deck without engaging the vessel. To perform these functions there is provided a carrier 20 mounted for outward and inward movement, toward and away fron'r-the side of the vessel, preferably upon guide rodslZl holding the anchora considerable distance away from the side there is provided an anchor support 30 fixed to a bracket 28 which is pivotally mounted at 29 on the end to fall, and means whereby The vessel is provided when the anchor is raised or lowered it shall not foul the side of an outwardly projecting arm 31 fixed upon the carrier. Said support is provided with a bent-off portion or arm 33, which, when the support 30 has swung about the pivot 29, forms an outward extension considerably beyond the vessel, the anchor being suspended from the end of said arm 33 in position for lowering (see Fig. 2). The anchor may thus be lowered without danger of its contacting with the vessel and avoid ing any possibility of injury to the ship... The outer end of arm 33 may be provided with a pulley 34; over which the cable 17 operates. p

lVhen the anchor is to be raised, rope 17 is wound up, thus tending to draw carrier 20 inwardly since the rope 17 passes beneath a pulley 36 fixed to the carrier, the latter, however, being held in its outward position because rope 25 is wound up. Until the anchor is fully drawn up to pulley 34, support 30 is held in the Figure 2 position substantially vertical, the weight of the anchor tending to rotate the support about pivot 29 to keep said support in con tact with the side of the vessel. lVhen the anchor reaches the pulley 34, however, further pulling upon rope 17 will draw carrier 20, support 30 and the anchor inwardly along guide rods 21 until the carrier reaches its innermost position where it may be held by fastening rope 17 against unwinding. To lower the anchor, rope 25 is wound to draw the carrier outwardly, rope l'ibeing released sufliciently to permit said outward movement. Vllhen the carrier has reached its outermost position, further release of rope 17 will permit the anchor by its weight to rotate member 30 about pivot 29 to the Figure 3 position. Still further release of rope 17 will permit the anchor to hang freely from the end of arm 33 some dis tance removed from the side of the vessel,=

from which position the anchor may be freely lowered by further unwinding of rope 17, It will thus be apparent that the support 30 maintains the anchor out of contact with the ship at all times, releasing the anchor beyond the side of the vessel when it is to be dropped, and taking it up again beyond the vessel when itis raised.

To enable the anchor while being raised to position itself properly upon, the sup port 30, there may be side of the pulley 34 a tends the pulley 34:, and hence the anchor, which are in a plane perpendicular to the plane of the ring, will be located substantially perpendicular to the plane of the ring. Positioned at the lower end of support 30in a plane perpendicular to the plane of pulley 34, and hence parallel to the plane ofarms 15,1's across-bar 12 having arm-supports 43. As the anchor-ring cam surface 10 which provided adjacent one to turn the ring 14 into the plane of arms 15 of thereaches its Figure 8 position the arms 15 will be turned into a plane parallel to cross-bar 42, and further pulling upon rope 17 will tilt support 30 inwardly to the Figure 3 position, and arms 15 will come to rest upon cross-bar 42 and arm-supports 3. The action is thus self adjusti'i'ilg. The arms 43 are adjustably mounted on the cross-bar 42 to accommodate anchor arms of various'sizes, and the cross-bar' t2 is adjustably mounted upon the member 30 to accommodate anchors having various sized shanks.

When the support 30 and the anchor are tilted inwardly against the carrier, and the latter has been pulled inwardly, the lower end of the support and anchor may restupon a shelf 45 fixed to the carrier-supporting mechanism, and outer braclret 22. To prevent rocking or slipping of the anchor upon the shelf due to movement of the boat, there may be pro vided upon the shelf hooks 47 which engage over the arms of the anchor.

I claim: 7

1. A ships davit contrivance for facilitating the hoisting and lowering of an anchor without injury to the ship, said contrivance including a normally carryingsaid' anchor upon said ship, said support being movable outwardly beyond the limits of said ship, said support when beyond the limits of the ship being swingable about its pivot to permit said allllpllOl to be lowered without engaging the s 1p.

2. A ships davit contrivance for facilitat-v ing the hoisting and lowering of an anchor without injury to the ship, said contrivance including a pivotally-mounted support for normally supporting said anchor upon said ship, said support 1 eing movable outwardly beyond the limits of said ship, said support when beyond the limits of said ship being swingable about its pivot to permi said anchor to be lowered without engagingthe ship, and means whereby said anchor positions itself upon said support when raised.

3. In a ships davit contrivance for facilitating the hoisting and lowering of; ananchor without injury to the ship, said anchor having arms, a pivotallymounted support for normally. supporting said anchor upon said ship, saidsupport having arms for normally supporting said anchor-arn'is, said support being movable outwardly beyond the limits of said ship, said support when beyond the limits of the ship being swingabl-e,

about itspivot to permit said anchor to be lowered without engaging said ship, and means whereby said anchor-arms position themselves upon said supportingarms when said anchor is raisedl 4:. In a ships davit contrivance tating the hoisting and lowering of an anpreferably to the pivotally-mounted support for for facilisupport pivotally chor without injury to the ship, said anchor having a ring and having arms "in a plane perpendicular to the plane of the ring, said anchor being operable by a cable attached to said ring,

said ship, said support having arms for normally support being movable outwardly beyond the limits of said ship, said supportwhen beyond the limits of said ship being swingable about its pivot to permit said-anchor to be lowered without engaging said ship,saidr a pulley over which saidsupport comprising cable operates, and a cam adjacent said pulley and substantially perpendicular to the plane of said supporting-arms, said cam engaging said ring when the anchor is raised 7 to turn said ring into the-plane of said cam and said anchor-arms into the plane of said supporting-arms to. enable said anchor-arms to position themselves upon said arms when the anchor is raised. 7

5. A ships davit contrivance for facilitating the hoisting and lowering of an anchor without injury to the ship, said contrivance including a carrier mounted upon said ship for so that when said carrier is in its outward arm projects beyond the limits position said a bracket pivotally secured to of said ship,

said arm, a support on said bracket and normally supporting said anchor, said support being swingable about the bracket pivot when said carrier is in its outward position to permit said anchor to be lowered without engaging said ship.

7. A ships davit'contrivance for facilitating the hoisting and lowering of ananchor without injury to the ship, said contrivance including a carrier mounted upon said ship for inward and outward movement, means for moving said carrier outwardly andrfor holding it in outward position, a support pivotally mounted upon said carrier and normally carrying said anchor, said support being swingable about its pivot beyond the limits of said ship when said carrier is,

moved outwardly, and means permitting the support to be swung about its pivot when the carrier is in outward position so that said anchor may be released oif of the support.

and lowered without engaging said-ship.

a: pivotally-mounted support for normally supporting said anchor upon supporting said anchor-arms, said mally carrying said anchor,

supporting- I swing the support 8. A ships davit contrivance for facilitating the hoisting and lowering of an anchor without injury to the ship, said contrivance including a carrier mounted upon said ship for inward and outward movement, means for moving said "carrier outwardly and'for holding it in its outward position,

a support pivotally mounted upon said carrier and norsaid support being swingabl-e about its pivot beyond the limits of said ship when said carrier is moved outwardly, afcable connected to said anchor, said cable being released when said carrier is in outward position to permit said anchor to swing the support about its pivot so that said anchor maybe released off of the support and lowered without engaging said ship.

9. A ships davit contrivance for facilitating the hoisting and lowering of an anchor without injury to the ship, said contrivance lnc-luding a carrier mounted upon said ship i or inward andoutward movement, means for moving said carrier outwardly and for holding it in its outward position, a support a pivotally mounted upon said carrier and normally carrying said anchor,said support being swingable about its pivot beyond the limits of said ship when, said moved outwardly, a cable connected to said anchor, said cable being-released when said carrier is inoutward position to permitsaid anchor to swing the support about its pivot so that said anchor may be released off of the support and lowered without engaging said ship, said cable, when wound up, raising said anchor upon the support, said cable, when further wound up, swinging said support andanchor inwardly and moving said carrier inwardly when the means for holding said carrier in outward position has been released.

l ,10.- A ships davit contrivance for facilitating the hoisting and lowering of an anchor without fnjury to the ship, said contrivance including a carrier mounted upon said ship for inward and outward movement, means for moving said carrier outwardly and for holding it in its outward position, a sup port pivotally mounted upon said carrier ant normally carrying said anchor, said support being swingable about its pivot beyond the limits of said ship when said carrieris moved outwardly, a cable connected to said anchor, said cable being released when said carrier is in outward position to. permit said anchor to about its pivot so thatsaid anchor may be released ofi' of the support and lowered without engaging said ship, said cable, when wound up, raising said anchor upon the support, said cable, when fun there wound up, swinging said support and anchor inwardly, said cable being connected to said carrier so that further winding of the cable moves said carrier inwardly when carrier is i no the means for holding said carrier in out ward position has been released.

ll. A ship's davit contrivan ce for facilitating the hoisting and lowering of an anchor without injury to the ship, said contrivance including a carrier, a guiding-sup port fixed to said ship and upon which said carrier operates for inward and outward movement, a support pivotally mounted upon said carrier and normally carrying said anchor in inward position, said support being swingable about its pivot beyond the limits of said ship when the carrier is in outward position to permit the anchor to be released off of the support and lowered without engaging the ship, said anchor when in inward position being supported in part upon said guiding-support, and catches on the guiding-support for holding said anchor against movement upon said guiding-suppOIt. J

12. A ships davit contrivance for facilitating the hoisting and lowering of an anchor Without injury to the ship, said contrivance including a carrier, a guiding-sup: port fixed to said ship and upon which said carrier operates for inward and outward movement, upon said carrier and normally carrying said anchor in inward position, said support being swingable about its pivot beyond a support pivotal-1y mounted the limits of said ship when the carrier is in outward position to permit the anchor to be released off of the support and lowered without engaging the ship, said anchor when in inward position being part upon said guiding-support, and means fixed to said guiding-supportand engaging the anchor in its inward position for holding said anchor against movement.

13. A ships davit contrivance for facili tating the hoisting and lowering of an anchor Without injury to. the ship, said con- 1 trivance'including a carrier, a guiding-support fixed to said ship andupon which said carrier operates for inward and outward movement, a support pivotally mounted upon said carrier and normally supportin said anchor in inward position, said support being swingable about its pivot beyond the limits of said ship wvhen the carrier is in outward position to permit the anchor to be lowered without engaging the ship, said anchor when in inward position being supported in part upon said guiding-support,

said anchor'having arms, and catches fixed I to said guiding-support andengagingsaid anchor-arms 1n the inward position of the anchor tohold said anchor against movement;

BROR MAX SCHAUMAIeL supported in r In testimony whereof I allix my signature.

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