1979-03-07
1980-08-12
Wolfe, Robert L.
Locks
Portable
Padlocks
70339, E05B 6722
Patent
active
042166640
ABSTRACT:
A padlock has a body having a central portion and two axial end portions. Two drums are rotatable received in two axial holes in the end portions and have engaging members and through-going holes. A shackle is insertable and withdrawable from transverse holes of the end portions of the body. The central portion of the body has through-going holes arranged to coincide with the through-going holes of the drums in respective circumferential positions of the latter. The springs are accommodated in the through-going holes of the central portion of the body. Inner pins are located axially outwardly of the springs at both sides thereof. Outer pins are located axially outwardly of the inner pins. The outer pins insertable in the through-going holes of the different drums have differing lengths. Two keys having projections of differing length are provided. One of the keys are insertable in one drum and operative for rotating the latter after inwardly moving the pins, whereas the other key is insertable in the other drum and rotates the latter after inwardly moving the other group of pins, both against the force of the same springs. When the drums rotate, their engaging members are withdrawn from the slots of the shackle member and the latter can be removed. In the locked position the same springs urges both groups of pins in an axially outer direction.
REFERENCES:
patent: 1618841 (1927-02-01), McMenamin
patent: 3581530 (1971-06-01), Respadori
Wolfe Robert L.
Zborovsky Ilya
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