Self-restoring, torque-limiting, torque-transmitting linkage

Details Self-restoring, torque-limiting, torque-transmitting linkage Self-restoring, torque-limiting, torque-transmitting linkage

1979-11-29

1981-03-24

Dorner, Kenneth

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

74470, A63D 502, G05G 100

Patent

active

042575958

ABSTRACT:
A self-restoring torque-limiting torque-transmitting linkage, for the rudder arm and rudder which drive the pin-moving paddle of an automatic pin setting machine for a lane of a bowling alley, will yield to permit that paddle to be moved if it is engaged by a bowling ball which is exiting from the area at the rear of that lane. That linkage has a first rotatable member and a second rotatable member which normally are held for conjoint rotation by a spring. The first rotatable member is rotated by an eccentric pin on a pulley of the automatic pin setting machine, the second rotatable member is secured to the rudder arm of that automatic pin setting machine to effect rotation of that rudder arm, and the spring normally forces the second rotatable member, and hence the rudder arm and rudder and paddle, to rotate with the first rotatable member. If a bowling ball applies a predetermined force to the paddle, the spring will permit that paddle, the rudder, the rudder arm and the second rotatable member to move independently of the rotation of that first rotatable member. After that force disappears, the spring will again force the second rotatable member, and hence the rudder arm and rudder and paddle, to rotate with the first rotatable member.

REFERENCES:
patent: 983800 (1911-02-01), Baker
patent: 3297322 (1967-01-01), Ernst et al.

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