Automatic hooking safety-hook for doors of dwellings and offices

Details Automatic hooking safety-hook for doors of dwellings and offices Automatic hooking safety-hook for doors of dwellings and offices

1977-03-22

1978-12-26

Moore, Richard E.

Closure fasteners

Extension link

Slotted bar

E05C 1724

Patent

active

041313070

ABSTRACT:
An automatic hooking safety-hook for doors of dwellings and offices comprising a rocking member mounted on the door frame and an eyed member mounted on the door and engaged with the rocking member, thus allowing the door to open only partially; disengaging means being provided, operable from outside and inside the door, to disengage the engaged members, in order to allow the door to open completely.

REFERENCES:
patent: 355419 (1887-01-01), Sprado
patent: 1497500 (1924-06-01), Gorowitz
patent: 2407900 (1946-09-01), Paul
patent: 2704684 (1955-03-01), Kleinemeier
patent: 2892652 (1959-06-01), Johnson

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