Joints and connections – Laterally related members connected by latch means – e.g.,...
Patent
1990-03-26
1991-09-10
Kundrat, Andrew V.
Joints and connections
Laterally related members connected by latch means, e.g.,...
182179, E04G 700
Patent
active
050468790
ABSTRACT:
A scaffolding arrangement including a perforated disk having a central bore for accommodating an upright scaffolding element. The perforated conencting disk includes a plurality of alternately arranged large and small wedge accommodating holes, with the small wedge accommodating holes having a wedge contact surface forming a continuous curve which is symmetrical with respect to a radius which passes through a middle of the wedge contact surface of the respective small wedge holes.
REFERENCES:
patent: 4044523 (1977-08-01), Layher
patent: 4493578 (1985-01-01), D'Alessio
patent: 4867274 (1989-09-01), Langer
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