Geometrical instruments
Patent
1982-03-25
1984-05-29
Bilinsky, Z. R.
Geometrical instruments
339196A, H01R 448
Patent
active
044511027
ABSTRACT:
A novel electrical plug comprising two identical members longitudinally combined face-to-face with each other, each member at an inner side comprising four sections including, in sequential order from rear to front end, a support section defining a groove for accommodating a connecting wire, a terminal receiving section having a recessed platform and a central polygonal hole to receive a terminal screw, a fulcrum section forming a pair of semi-circular protrusions spaced apart from each other and a pair of semi-circular recesses at the remainder spaces, and a spring retention section having a platform at a level lower than that of the platform at said terminal receiving section and a central through hole to retain a coil spring which has hooks at both ends extending and fastening at the outer side of both members and thereby combining said members together, and at the front end comprising a conductor integrally formed therein.
REFERENCES:
patent: 1890484 (1932-12-01), Allemic
patent: 2245986 (1941-06-01), Krauss
patent: 2411846 (1946-12-01), Bir
patent: 3719919 (1973-03-01), Tibolla
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