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Publication numberUS2531549 A
Publication typeGrant
Publication dateNov 28, 1950
Filing dateNov 21, 1947
Priority dateNov 21, 1947
Publication numberUS 2531549 A, US 2531549A, US-A-2531549, US2531549 A, US2531549A
InventorsJohn C Boyd
Original AssigneeJohn C Boyd
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Sailing and steering rig for attachment to flat bottom rubber boats or rafts
US 2531549 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)


:j v INVENToR.


Nov. 28, 1950 J. c. BOYD SAILING AND STEERING RIG EoR ATTACHMENT To FLAT BOTTOM RUBBER EoATs 0R RAFTs 2 Sheets-Sheet 2 Filed Nov. 2l, 1947 9 f/olv 7 /v 8 2 $1@ +B 3 W 4 a m n A F 3 am 2 E /7 INVENTOR. Jof//v c. @o Ya,

477' ORNE' Y S Patented Nov. 28, 1950 SAILING AND STEERXNG VREG 'FR ATTACH- MENT T FLAT BGTT OR RAFTS 6M RUBBER BOAT-S John C. Boyd, Riverside, Calif.

Application November 21, 1947, Serial No. 787,328

2 Claims.

My invention relates to a rig or attachment to be installed upon flat bottomed rubber boats or rafts, or like devices.

An important object of the invention is to provide a rig of the -above mentioned character which will rend-er it possible to lsatisfactorily Sail such flat bottomed boats or rafts, and also render it easy to accurately maneuver the same when rowed or pad-died.

A further object of the invention is to provide a rig of the above mentioned character, formed of assemblies which may be knocked down for the purpose of shipment, and opened and readily applied to the boat or raft.

In the drawings,

Figure l is a side elevation of a rig embodying my invention as applied to a flat bottomed rubber boat,

Figure 2 is a front end elevation of the same,

Figure 3 is a side elevation of the baseor door assembly,

Figure 4 is a bottom plan View of same,

Figure 5 is a side elevation of same, showing it partly folded,

Figure 6 is a perspective view of the keel, showing the same partly folded.,

Figure 7 is a detailed section taken on line 'L -'I Aof Figure 4,

Figure 8 is a detailed section taken on line` 8%-8 of Figure 6,

Figure 9 is a side elevation of the rudder and associated elements,

Figure 10 is a horizontal section taken on line IU-I0 of Figure 9, and

Figure 11 is a detailed section through a socket which receives the mast,

Figure 12 is a fragmentary rear elevation showing the rudder and stern section of the'boat.

In the drawings, the numeral I5 designates a nat bottomed rubber boat, of the type that can be inflated for use. This boat may be of the general type shown in Patent 2,370,069. The boat I5 has a lat bottom and is not equipped with a keel.

The numeral I6 designates the base or oor assembly or unit, comprising a bow unit or section I'I, an intermediate section I8, and a stern section I9, see more particularly Figure 4. Streamlined blocks ZE)` are rigidly mounted upon the lower face of the bow section Il', and companion streamlined blocks 2I are rigidly mounted upon the lower face of the intermediate section I8, and leaf-hinges 22 connect the pairs of blocks and 2I, and are arranged beneath them, as shown. The intermediate section I8 is fill adapted to break ydownwardly with relation to .the bow section Il'. The stern section $9 is connected with the intermediate section 5 by leafhin-ges secured to the upper faces of the sections E@ and Figure 3, and the stern section it is adapted to break upwardly with respect to the section I8, Figure 5. The base or iioo-r 5.6 is providesl with a subkeel ifi, formed in separate sections 25, 2e and 2l, rigidly mounted upon the lower aces of the bow section Il, the intermediate section and the stern section I 9, respectively. The sub-keel sections are arranged in endtoend relation and form in eil-ect a con tinuous subkeel. Apertured cleats 28 and 29 are rigidly secured to the bow section Il, apertured cleats 29 rigidly secured to the-intermediate section H3., and apertured cleats 2S and 29 rigidly secured to the stern section it. All of the cleats are mounted upon the lower faces of the base or floor sections and proiect beyond the marginal -edgeof the same. The cleats E8 have -their inner ends angularly arranged and apertured, Figure 7.

The base or door I6 is arranged beneath the iiat bottomed boat iii, with the bow section Il' next to the bow of the boat i5, and the base is .secured to the `boat i5 by ropes or exible .elee ments Si., secured .to the apertured cleats 23 and 2Q, and passed about and over the -bo-at I3 and tied to appropriate tie-.points on the boat.

A keel 321s provided, including a bow section .33 and a stern section 3e, having their inner ends connected by leaf-hinges 35, so that these keel sections may be folded or collapsed, Figure 6. The keel sections 33 and 34 are provided at their tops and near their opposite ends with pairs of guide straps 35, rigidly secured thereto by bolts 3l. These guide straps project above the top edges of the keel sections and are adapted to receive between them the sub-keel sections, thus securely attaching the keel sections to the subkeel sections, in a detachable manner, as will be described. Diagonal guys or wires 38 are attached to the keel sections 33 and 34 near their bottom edges and these guys are attached to the cleats 23. The guys 38 are drawn tight by turnbuckles 39. It is thus seen that the keel is securely held in place upon the sub-keel and may be removed therefrom, when desired.

The numeral Il@ designates a rudder and 4I is a tiller rod, having a horizontal extension 4Z. The rudder is held to the tiller rod I and eXtension t2 by straps 43. U-shaped brackets 44 are provided, having horizontal apertured extensions 45. The upper U-shaped bracket 44 engages over the rear end of the sub-keel extension 27, and is rigidly attached thereto by bolts or the like, and this bracket also i'lts within a notch 45 formed in the keel section 34, Figure 6. The lower bracket 44 receives the lower edge of the keel section 34 and is secured thereto by bolts or the like. The apertured extensions 45 pivotally receive the tiller rod 4i, the extensions 45 projecting into notches 41, Figure 9.

The tller rod 4| is equipped with a tiller arm 48, which is horizontal, and carries a strap 49, receiving therein the upper horizontal extension 50 of the vertical tiller rod 4l. This vertical tiller rod passes into the forked end of the tiller arm 48, and has clamping engagement with the sides of this forked end by means of a bolt 5|, which draws the sides together, if desired.

The numeral 52 designates a mast, formed in upper and lower sections 53 and 54, detachably connected by a sleeve 55. The lower end of the lower section 54 is inserted within a socket 56, suitably secured to the bottom of the boat I5, adjacent to the bow. The mast is connected at its top with guys 51, extending downwardly for connection with rings 58, secured to straps 59, in

turn attached to the cleats 28 and 29. The mast 52 carries a sail 60 and this sail has its top connected with a rope 6i, passing over` a pulley 62, and this rope Bi extends downwardly for suitable connection with the ring I2 or straps 53, suitably attached to the cleats 29. The rope 6| also serves as a guy for the mast. The sail 99 is secured to the mast 52 by loose lacing, as indicated at 64, although large rings may be employed. A

boom 65 is provided, secured to the sail 99 by lacing '66. This boom has a ring 6l at one end, slidable upon the mast section 54, and held against upward movement by a pin 68. The boom swing is regulated or adjusted by a rope 69, running through pulleys 10, carried by straps 'H secured to the cleats 28 and 29, as shown.

Having thus described my invention, what I claim is:

1. A base to be mounted upon a flat bottom boat or the like, comprising flat hinged base sections, apertured cleats secured to the base sections near their marginal edges, a vertically narrow sub-keel section secured to each base section, the sub-keel sections being assembled to form a sub-keel permanently secured to the base, a keel comprising keel sections, opposed flat plates formming sockets secured to the upper edges of the keel sections and projecting above the same for receiving the sub-keel therein, diagonal guys secured to the keel sections near their lower edges and having their opposite ends secured to certain of the cleats, a rudder pivotally mounted upon the keel, and exible elements secured to certain of the cleats and engaging about and connected with the sides of the boat.

2. A sailing and steering attachment for at bottom inflatable rubber boats and the like, comprising flat hingedly connected base sections to be arranged against the flat bottom of the boat, apertured cleats secured to the base sections near their marginal edges, a vertically narrow subkeel section secured to each base section, the sub-keel sections assembling to form a sub-keel permanently secured to the base sections, a keel comprising keel sections, opposed upstanding pairs of flat plates forming sockets secured to the top edges of the keel sections and projecting above the same for receiving the sub-keel therein, diagonal guys secured to the keel sections near their lower edges and having their top ends connected with certain of the -apertured cleats, a steering rudder pivotally connected with the rear keel section, flexible elements secured to certain cleats and engaging about the sides of the boat and connected with the boat, a mast, a sail carried by the mast, and guys secured to the mast and extending about the sides of the boat and connected at their lower ends with certain of the cleats.


REFERENCES CITED The following references are of record in the file of this patent:

FOREGN PATENTS Number Country Date 19,769 Great Britain Sept. 17, 1898 463,774 Great Britain Apr. 6, 1937 574,772 Great Britain Jan. 21, 1946 26,338 France May 10, 1922 (1st addition to No. 539,873) 652,304 France Apr. 6, 1928

Patent Citations
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FR26338E * Title not available
FR539873A * Title not available
FR652304A * Title not available
GB463774A * Title not available
GB574772A * Title not available
GB189819769A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2683270 *Jan 25, 1949Jul 13, 1954Long Noyes CSteerable float
US2908239 *Apr 2, 1957Oct 13, 1959Raymond LaineDismountable sailing boat
US2949616 *Jul 29, 1957Aug 23, 1960Zodiac SocCollapsible boats
US3261038 *Feb 17, 1965Jul 19, 1966Hans Klepper CorpBoat
US3810268 *Oct 21, 1970May 14, 1974Firestone Tire & Rubber CoHydrofoil attachment for boats
US3827094 *Jun 25, 1973Aug 6, 1974Goodrich Co B FInflatable life raft escape slide
US3860984 *Jun 25, 1973Jan 21, 1975Goodrich Co B FInflatable life raft escape slide
US4825790 *Jan 20, 1988May 2, 1989Strout Theodore MSailing craft
US6367404 *Mar 29, 2000Apr 9, 2002Steven CallahanFolding rigid-inflatable boat
US6684808Feb 21, 2002Feb 3, 2004Steven CallahanBoat stability and directional-control device
US6739278Feb 21, 2002May 25, 2004Steven CallahanFolding rigid-bottom boat
US7165501 *Sep 24, 2004Jan 23, 2007Woomer Thomas LSail conversion kit and method for small watercraft
US20140231098 *Feb 15, 2013Aug 21, 2014Black Hawk Energy ServicesMethods of supporting a self-propelled derrick rig
U.S. Classification114/345
International ClassificationB63B7/08
Cooperative ClassificationB63B7/085
European ClassificationB63B7/08C