F - Mech Eng,Light,Heat,Weapons – 16 – D
Patent
F - Mech Eng,Light,Heat,Weapons
16
D
100/53
F16D 71/04 (2006.01) B30B 15/28 (2006.01) F16P 1/00 (2006.01)
Patent
CA 1242110
POWER PRESS RAM SAFETY GUARD WITH ELECTRICAL INTERLOCK Abstract of the Disclosure A power press is comprised of a frame, a stationary bed, a ram reciprocally movable toward and away from the bed and a safety guard for preventing movement of the ram toward the ram when the tooling for the press must be repaired or changed. The guard includes a first chain attached to the frame of the press and a second chain attached to the ram and attachable to the first chain to restrict movement of the ram toward the bed. The chains are connectable together at a plurality of locations to enable the combined, attached length of the chains to be adjusted. The adjustability permits the guard to be easily used with a press having a range of shut heights. A normally open power circuit controls the reciprocal movement of the ram. A key for closing the circuit by engagement with a receptacle in the circuit is attached to the first chain. The key is engageable with the receptacle when the chains are unattached and is not engageable with the receptacle when the chains are attached.
469713
Chestnut William R.
Cox Christopher J.
Mackenzie David J.
Parcell Clive L.
Borden Ladner Gervais Llp
Deere & Company
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