1981-07-30
1983-05-17
Yu, Mickey
84477B, A63H 132, G09B 1502
Patent
active
043833870
ABSTRACT:
An adjustable baton to be used for twirling is provided having an elongated shaft formed from a hard material such as stainless steel. A resilient ball is mounted at one end of the shaft and a smaller resilient tip is mounted at the other end thereof. The shaft comprises three axially aligned tubular pieces, namely a main shaft with an extension shaft mounted at each end thereof. Mating internally frusto-conical surfaces are formed at the ends of the main shaft and the extension shaft at each end of the main shaft has a mating externally frusto-conical surface to be received by the mating surface of respective end of the main shaft. A threaded rod internally received by each extension shaft and one end of the main shaft is provided for each extension shaft to connect the extension shafts to the main shaft. Adjustment is accomplished by extracting a desired length of threaded rod from inside the main shaft. Adjustable threaded bushing to eliminate play between the rod and the respective extension shaft and these parts are fastened securely by a locking device such as a lockwasher and nut. The tip end has a weight therein to counterbalance the larger resilient ball at the other end of the shaft. The length of the baton is adjusted by substituting extension shafts of different lengths.
REFERENCES:
patent: 3003385 (1961-10-01), Taylor
patent: 3069804 (1962-12-01), Cirafesi
patent: 3070370 (1962-12-01), Steiner
patent: 3509659 (1979-05-01), Kau
patent: 3810411 (1974-05-01), Schambacher
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