Geometrical instruments
Patent
1983-01-10
1985-01-08
McQuade, John
Geometrical instruments
408115R, 408241G, H01R 1360, B23B 4728, B23G 148
Patent
active
044924208
ABSTRACT:
To connect electrical supply leads (19) to an electrical distribution track (1-6) a hole (16) is formed in a rear wall (2) by drilling a series of intersecting holes using a guide block (7) engageable in the track channel and including a locking plate (19) to secure it therein, inserting an insulating bushing (8) into the hole (16) and feeding the supply connectors (19) through the bushing for connection to a supply connector (21) which is inserted into the track through the channel mouth.
REFERENCES:
patent: 2267745 (1941-12-01), O'Brien et al.
patent: 3277234 (1966-10-01), Dekko et al.
patent: 3933403 (1976-01-01), Rubesamen et al.
patent: 4306823 (1981-12-01), Nashlund
Bishop Steven C.
Colvin Arthur
McQuade John
Rotaflex plc
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