Importance

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Abstract

Apparatus is provided for separating and lifting units, such as insulated glass window or door units, one at a time from a stack of units. The apparatus comprises a frame which supports a movably mounted suction platen for vacuum engagement with an upwardly presented surface of the uppermost unit in the stack and a push block for bearing engagement with a peripheral edge of the unit immediately below the uppermost unit. A pneumatic cylinder assembly reacts between the frame and the suction platen to displace the platen and the engaged uppermost unit with respect to the push block and the underlying units in the stack whereby the uppermost unit is separated from the underlying units. The suction platen remains in vacuum engagement with the separated unit to permit lifting and carrying thereof to an alternative location. Controls facilitating operation of the apparatus are also disclosed.

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First Claim