Movable or removable closures – With traffic director or controller; e.g. – one-way
Patent
1999-02-19
2000-08-01
Redman, Jerry
Movable or removable closures
With traffic director or controller; e.g., one-way
E01F 1300
Patent
active
060948639
ABSTRACT:
An attachment is provided for a safety gate that is positioned to close the opening in a catwalk to allow access to and from a ladder or stairs. The gate is urged to the closed position by springs. The improvement is an attachment for connecting to the lower side of existing gates to prevent workmen using the catwalk from slipping under the gate and falling into the opening for stairs or a ladder.
REFERENCES:
patent: D188190 (1960-06-01), Stevens
patent: 3866356 (1975-02-01), Lacook et al.
patent: 4290230 (1981-09-01), t'Kint de Roodenbeke
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