[Trade Journal]
Publication: Electrical Review
New York, NY, United States
vol. 30, no. 6, p. x, col. 2
Electrical ....
Patents.
ISSUED FEBRUARY 2, 1897.
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576,392 Insulator; H. E. Billings, Hartford, Ct., - A line wire supporting insulator stud, a screw-threaded cap having a circuit or ratchet crown teeth; a screw-threaded body portion having a spring-pressed stop-pawl adapted to engage one of said teeth, to prevent loosening of the cap; and a deflector carried by said body portion and surrounding the insulator stud.
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