Abstract:
Despite every effort to tighten the belly of a self-winding Genoa jib, as soon as the number of turns exceeds two or three the residual belly of the Genoa jib reduces the ability of the vessel to sail into the wind, often at the very moment when this is most necessary. The object of the invention is to provide a device for reducing, if not eliminating, this belly. The solution proposed in accordance with the invention is a hauling-in device for a sail (V) wound onto a stay or into a mast, said sail being a jib, a Genoa jib or a mainsail, and said device comprising a strap (10) or an eye fixed to the luff of said sail, the device being characterized in that it consists of a guided hook (4) that engages in said strap or eye.
Abstract:
An arrangement for a bearing (1) which is so arranged as to be acted upon by an axial load applied at a point radially displaced outside the bearing. The bearing arrangement solves, amongst other things, the problem of achieving good load distribution in a bearing (1) of the above-mentioned kind. A number of bearing supports (34-39) are distributed around the circumference of the bearing and are so arranged that the load is transferred to the bearing (1) at a point displaced radially inwards towards the centre (40) of the bearing.
Abstract:
A furler device for stayed sails and the like comprises a torsionally rigid guide extending predominantly axially, a first swivel, slidable on the guide, having a first part fixed rotationally to the guide and a second part which is freely movable with respect to the first part, a stay which supports the guide, a furler with a rotating part designed to rotate the guide about its own axis in order to furl a sail hoist between the rotating part of the furler and the first part of the swivel, around the stay; the guide extends only over a portion of the stay, at the opposite end to the furler, and the stay is torsionally rigid and fixed rotationally to the rotating part and to the guide, so as to form a torque transmission member between the rotating part of the furler and the first part of the swivel when the swivel is engaged along the guide.
Abstract:
A sail changing system wherein the sail (A) is controlled by slides (8) which are attached to the lufftape (5), by short cords (7), which slide along beside the lufftape (5) in a grooved track (10') on the foil (4) when the sail (A) is raised, and which feed into a cartridge (C) when the sail (A) is lowered.
Abstract:
The invention provides for flattening a cambered flexible sheet, usually a marine sail, by rolling a supporting edge of the sheet, typically the luff of a sail, on a rotatable support member. Applied to a sail (2), the invention provides a bolt rope and tape (16 and 17) which effectively attaches only an intermediate portion of the luff to a rotatable stay member (3). A flexible material (18) is also provided and this surrounds the stay member (3) and extends over at least those portions of the luff which are not effectively attached to the stay member (3) by the bolt rope and tape (16 and 17). When the sail (2) is reefed, that portion of the luff the bolt rope (17) is attached to is wrapped around the stay member (3) first serving to reef the sail (2) progressively in a flattening fashion.
Abstract:
Die Erfindung betrifft einen hydraulischen Antrieb (1) einer für ein Segel (7) eines Segelfahrzeuges (3) bestimmten Rollreffeinrichtung (2). Der Antrieb (1) ist mittels einer aus einer Vorlaufleitung (8) und einer Rücklaufleitung (9) bestehenden Leitungsverbindung mit einem Fluidspeicher (10) für eine Hydraulikflüssigkeit verbunden und derart betreibbar, dass dieser beim Aufwickeln des Segels (7) als Antrieb (1) dient, beim Abwickeln des Segels (7) hingegen als Pumpe für das Hydraulikfluid. Innerhalb des Fluidspeichers (10) ist ein als Kolben ausgeführter Trennkörper (11) translatorisch beweglich angeordnet, welcher den Fluidspeicher (10) in zwei variable Kammern (12, 13) unterteilt. Dabei ist der Trennkörper (11) derart mittels eines Federelementes (14) in Richtung einer das Kammervolumen der zweiten Kammer (13) reduzierende und zugleich das Kammervolumen der ersten Kammer (12) erhöhende Speicherposition vorgespannt, dass das beim Abwickeln des Segels (7) geförderte Fluidvolumen entgegen dieser Rückstellkraft (F) in die Kammer (12) gefördert wird. Erfindungsgemäß wird in einfacher Weise ein Teil der beim Vergrößern der Segelfläche des Segels (7) wirkenden Kraft durch das Federelement (14) gespeichert und ist so zum Aufwickeln des Segels (7) nutzbar, wobei der Installationsaufwand für den erfindungsgemäßen Antrieb (1) weitaus geringer ist als ein mit einer elektromotorisch angetriebenen Pumpe verbundener Antrieb und zudem eine Energieversorgung entfällt.
Abstract:
Die Erfindung betrifft einen für eine Rollreffeinrichtung (1) bestimmten Federmotor (2) zum Aufwickeln eines Segels (5), wobei der Federmotor (2) durch eine beim Abwickeln auf das Segel (5) wirkende Zugkraft entgegen seiner Rückstellkraft gespannt wird. Der Federmotor (2) hat mehrere in verschiedenen parallelen Ebenen angeordnete ebene Federelemente (3, 4), die durch eine Welle (16) in einer Reihenschaltung verbunden sind, wobei ein erstes Federelement (3) mit dem Segel (5) und ein zweites Federelement (4) mit einer Aufnahme (10) an dem Segelfahrzeug verbunden ist.
Abstract:
A small diameter luff spar (6) having a high strength to weight ratio, comprising of a luff wire (5) encapsulated within a fibre based material tube (1). Metal end sleeves (2) fastened onto the tube, engage thimbles (4), formed at each end of the luff wire (5) in receiving slots, and fastened to resist any operational longitudinal forces, as well as transmit any rotational movement along the length of the luff spar (6). A foresail having an extended luff sleeve (8) through which the luff spar is passed, with no cringles (reinforced holes) at the tack (9) or peak (10), and reduced stiffening and sail reinforcement at the tack (9) and peak (10) of the sail, is also disclosed.
Abstract:
The invention relates to a device and a system or winding a triangular sail, in particular an asymmetric front sail, that comprises: a cable to be mounted between the deck and the mast of a ship; a first means for mounting a lower end of the cable on the deck while allowing the free rotation of said cable relative to the deck; a second means for mounting the upper end of the cable on the mast while allowing the free rotation of said cable relative to the mast; a third means for mounting the sail on the lower end of the cable while allowing the free rotation of said cable relative to the sail; a fourth means for mounting the sail on the upper end of the cable while allowing the free rotation of said cable relative to the sail; at least indirect attachment means for attaching an intermediate portion of the sail hoist on the cable so that the said portion is secured in rotation to the cable. The device is particularly adapted for winding the sail of a spinnaker.
Abstract:
Arrangement (1) for a sail (2) for a sailing boat (3) which exhibits preferably asymmetrical form and is so arranged as to be capable of being furled with the help of a roller, and there is a line (5) extending between the sail (2) and the roller, and the aforementioned roller is so arranged as to be capable of being caused to rotate, in conjunction with which the line (5) is so arranged as to be wound onto the roller. The aforementioned line (5) is attached to the sail (2) in such a way as to draw it together in the vertical sense (H) when the roller is caused to rotate in one direction. The sail (2) is so arranged as to be furled with the help of the aforementioned roller after drawing together the sail (2), and the furling is so arranged as to be effected around a rotatable leading edge (9) arranged between the roller (4) and the mast (8) only once the draw line (5) has been tensioned sufficiently. Furling of the sail (2) thus takes place automatically if a continuous pull is applied to the control line and when the draw line (5) is fully extended.