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US 4,941,420 AGranted
Sailboat room control device
OwnerHarold L. Heintzinventor
Life of this patent
Estimating the term…
Abstract
A device for controlling the swinging of a boom on a sailboat comprising a line fixed at opposite ends to opposite gunwales of the boat and passing intermediate its ends about a drum secured to the boom.
Claims1
A device for controlling the swinging movement of the main boom on a sailboat, said device comprising,
- (a) a clindrical hollow drum having a smooth outer surface to receive a coil of rope,
- (b) a pair of spaced, substantially parallel plates secured to the ends of the drum and overlapping the outer surface of the drum to form end walls for confining a coil of rope on the outer surface of the drum,
- (c) each of said plates being substantially triangular in shape and having a curved edge portion concentric to the outer surface of the drum,
- (d) each of said plates also having first and second extensions with end portions spaced closely adjacent to, but beyond, the circumference of the drum when wrapped with a coil of rope,
- (e) said first extensions on the plates disposed opposite each other and provided with means for pivotally attaching the device to the main boom for the sailboat,
- (f) said second extensions on the plates being disposed in oposite directions to each other and each terminating in an offset segment, and
- (g) rope guides mounted on said offset segments positioned tangentially to the cylindrical outer surface of the drum whereby a coil of rope can pass freely therethrough so as to be laid in a neat wrap on the outer surface of the drum.
4 more elements
Dependencies are inferred from the claim text.