192 clutches and power-stop control – Stop mechanism – Drive release and brake
Patent
1979-10-09
1982-01-26
Bonck, Rodney H.
192 clutches and power-stop control
Stop mechanism
Drive release and brake
100 53, 192 28, F16P 300, F16D 7100
Patent
active
043124356
ABSTRACT:
A safety device for mechanically-operated apparatus, such as a flywheel-driven punch press, consists of a hook-providing coupling member for mounting on the press crank shaft, and a cooperating coupling member for connection to the apparatus body via a power-absorbing member. The coupling members rest in the coupled position and are moved momentarily to the uncoupled position upon initiation of an operation by the operator. If therefore the movable member of the press continues to move after the normal termination of the cycle the coupled members connect the movable member to the power-absorbing member so that the movable member is brought to a stop before the press die parts can close. A third coupling member is provided for engagement with the second coupling member to brake the movement of the operating member if it should move in the opposite direction. The power-absorbing member preferably is a hydraulic piston and cylinder device connected between one coupling member and the press body, the liquid in the cylinder interior becoming pressurised and discharging via a preset relief valve or calibrated orifice when the device is operative.
REFERENCES:
patent: 762802 (1904-06-01), Casgrain
patent: 1173423 (1916-02-01), Hagelstein
patent: 1343580 (1920-06-01), Parkinson
patent: 1865814 (1932-07-01), Berry
patent: 2646152 (1953-07-01), Retz
patent: 2743802 (1956-05-01), Hart
patent: 2827143 (1958-03-01), Meyercordt
patent: 2860525 (1958-11-01), Breadner
patent: 3204739 (1965-09-01), Moore
patent: 4129071 (1978-12-01), Oishi
Bonck Rodney H.
The Brown Boggs Foundry and Machine Company Limited
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