Geometrical instruments – Miscellaneous – Light direction
Patent
1993-08-10
1994-12-13
Cuchlinski, Jr., William A.
Geometrical instruments
Miscellaneous
Light direction
33755, 33562, 273 25, A63B 7102, A63C 1906, G01B 310, G01C 1500
Patent
active
053719492
ABSTRACT:
A reel dedicated to the layout of a baseball diamond includes a tape with an inner end reeled onto a reel body and an outer end attached to the reel body to form a loop of the tape. The loop has a length 2x+.sqroot.2x and has a first base marking at a distance x from the outer end, a second base marking at a distance 2x from the outer end, a third base marking at a distance x+.sqroot.2x from the outer end and a pitcher's plate marking at a distance of y from the inner end. x is equal to the required distance between bases. y is equal to the distance of the pitcher's plate from home base. The loop is pulled out into a first triangle from first base to second base and back to home plate and then in a second triangle from home plate to first base and to third base to accurately lay out the positions of pegs.
REFERENCES:
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patent: 4937949 (1990-07-01), Kiefer
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patent: 5280092 (1994-01-01), Milburn
Ade Stanley G.
Battison Adrian D.
Bennett G. Bradley
Cuchlinski Jr. William A.
Thrift Murray E.
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