Sewing – Elements – Frames
Patent
1984-07-12
1985-06-04
Schroeder, Werner H.
Sewing
Elements
Frames
108 20, 74 16, D05B 5730, D05B 7304
Patent
active
045207445
ABSTRACT:
A sewing machine with an articulated table is provided to facilitate the proper positioning and removal of workpieces. The drive shaft disposed under the table also is articulated to rotate with a portion of the table. An alignment piston is provided to securely align the drive shaft prior to any articulation thereof. An articulation piston is provided to positively move the table through its range of articulation. A locking piston also is provided to lock the table into its nonarticulated condition. The various piston members are preferably controlled by a common unit to ensure coordinated action.
REFERENCES:
patent: 2583735 (1952-01-01), Hayes
patent: 3112718 (1963-12-01), Bono
patent: 3345021 (1967-10-01), Gransten
Casella Anthony J.
Falik Andrew M.
Hespos Gerald E.
Schroeder Werner H.
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