Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1987-05-21
1988-09-27
Swann, III, Glen R.
Communications: electrical
Condition responsive indicating system
Specific condition
38 7, 38143, 1984643, 340540, G08B 2100
Patent
active
047745053
ABSTRACT:
In a conveyor for continuously conveying linens or like materials one by one as gripped at a plurality of points by chucks moving along a rail, a first sensor for detecting passage of the chuck is disposed at a predetermined position along the rail, and two or more second sensors for detecting existence of a linen are disposed at two or more predetermined positions. Means is provided for expanding a distance between adjacent chucks being moved continuously in the proximity of the first sensor. In response to detection signals issued from the sensors, the condition of the chucks gripping the linens can be recognized whether a given chuck is gripping a front corner, a rear corner or a middle point on an upper edge of a linen, it is gripping only one point of a linen, or it is gripping nothing (that is, idle).
REFERENCES:
patent: 3092263 (1963-06-01), Beaudry et al.
patent: 3092271 (1963-06-01), Beaudry et al.
patent: 4143476 (1979-03-01), Holmes et al.
patent: 4150374 (1979-04-01), Brook
patent: 4313269 (1982-02-01), van Rumpt et al.
patent: 4501529 (1985-02-01), Wiebesick
Ishihara Hidetoshi
Kojima Kunio
Ueda Atsushi
Churyo Engineering Kabushiki Kaisha
Mitsubishi Jukogyo Kabushiki Kaisha
Swann III Glen R.
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