Circular butterfly
First Claim
1. A throwing implement comprising, a circular saucer having a round surface, a circular rim about the outer periphery of said round surface, a lower ring surface about the inner periphery of said round surface, said lower ring surface having corrugations over at least a portion of its upper face, said lower ring surface defining a round hole in the middle of said throwing implement, a plurality of radial holes in said circular rim, and a plurality of downwardly facing U-shaped radial grooves in the lower face of said lower ring surface;
- a plurality of leaves, each leaf having a leaf surface secured to an axle intermediate the ends of said axle, an outer end of each axle being mounted in one of said radial holes and an inner end of each axle being mounted in a corresponding one of said U-shaped radial grooves;
means for retaining the inner ends of said axles in said U-shaped radial grooves; and
adjusting means for changing the angle of attack of said leaves with respect to the plane of said round surface.
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Accused Products
Abstract
A circular butterfly is a kind of throwing implement, which comprises a circular saucer having a number of radial holes and grooves, and a round hole at the middle, a number of rotatable leaves, a rotatable adjusting disk and a circular plate fixed on the said adjusting disk.
14 Citations
11 Claims
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1. A throwing implement comprising, a circular saucer having a round surface, a circular rim about the outer periphery of said round surface, a lower ring surface about the inner periphery of said round surface, said lower ring surface having corrugations over at least a portion of its upper face, said lower ring surface defining a round hole in the middle of said throwing implement, a plurality of radial holes in said circular rim, and a plurality of downwardly facing U-shaped radial grooves in the lower face of said lower ring surface;
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a plurality of leaves, each leaf having a leaf surface secured to an axle intermediate the ends of said axle, an outer end of each axle being mounted in one of said radial holes and an inner end of each axle being mounted in a corresponding one of said U-shaped radial grooves; means for retaining the inner ends of said axles in said U-shaped radial grooves; and adjusting means for changing the angle of attack of said leaves with respect to the plane of said round surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification