Sewing – Special machines – Darning
Patent
1979-02-28
1981-05-12
Schroeder, Werner H.
Sewing
Special machines
Darning
833971, 192133, D05B 8300
Patent
active
042664926
ABSTRACT:
A protective guard arrangement to lessen the likelihood of a lacing machine operator receiving injury from a lacing machine while performing a stator assembly operation is disclosed including a sleeve-like guard open at opposite ends and pivotally attached to the machine by an arm which is power actuable to pivot between a retracted position and an operational position wherein operator access to the region of machine stator interaction is obstructed. The guard position is determined and machine operation impeded if the guard is in other than the operational position. In operation, enhanced operator safety is achieved by positioning a stator on a stator processing machine, actuating the machine, confirming the presence of the operator safety shield in a position to impede operator access to the region of machine action on the stator and initiating machine processing of the stator only after the shield presence has been confirmed. Actuation of the machine typically includes initiating movement of the shield from a position allowing the operator free access to the region of machine action for positioning and removing stators to the operator access impeding position which is sufficiently close to the stator to preclude the operator from placing his finger between the shield and the stator while providing sufficient clearance between the stator and the shield to allow operator placement of a small hand-held additional workpiece between the shield and the stator to be affixed to the stator during processing by the machine.
REFERENCES:
patent: 2487396 (1949-11-01), Summers
patent: 2539902 (1951-01-01), Foley
patent: 2580871 (1952-01-01), Wintz
patent: 3331408 (1967-07-01), Condit
patent: 3344760 (1967-10-01), Muskulus et al.
patent: 3859950 (1975-01-01), York
patent: 4033218 (1977-07-01), Donatelle
Tough-O-Matic Advertisement, (Submitted with applicant's prior art statement of 6/12/79, no publication date given).
Falik Andrew M.
General Electric Company
Krisher, Jr. Ralph E.
Schroeder Werner H.
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