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To all whom it may concern: Be
it known that I, RALPH G. HEMINGRAY,
a citizen of the United States, and a resident of Muncie, in the county
of Delaware and State of Indiana, have invented a certain new and useful
Improvement in Insulating-Supports for Electric Wires, of which the
following is a full, clear, and exact description, reference being had
to the accompanying drawings, which form part of my specification. My
invention relates to the construction of that class of
insulating-supports for electric wires in which the wire is supported
below the cross-arm and in which an outer annular guard or shield is
provided which surrounds the central supporting member for the
line-wire, thereby protecting it from drip. The
object of my invention is to provide an insulator which shall be
economical in manufacture and by reason of its structure less liable to
breakage than the insulators of this class as now constructed.
Its advantages will appear more ful1y as I proceed with my
specification. In
the drawings, Figure 1 is a section through my improved
insulating-support, and Fig. 2 is a side elevation of the same. My
improved insulator consists, essentially, of the outer annular guard or
shield A and of a supporting member B below the annular guard A, the two
being secured together by means of a shank C with screw-threads at each
end thereof. The supporting
member B is provided with a groove B' at the bottom, in which the main
wire lies, and also with an annular groove B", which serves as a
support for the binding-wires which hold the main wire in the notch B'.
The groove B” may extend completely around the supporting
member B or only part way, its purpose being simply to give sufficient
bearing for the binding-wires. The
guard or shield A serves to shed moisture in the form of rain, snow, or
sleet from the main wire at the point where it is supported in the
groove B'. The guard is
preferably provided with one or more downwardly-extending
"petticoats" A', A", and A"', although it may be
made without these.
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I
do not wish to limit myself to any particular shape of guard or shield. The
guard A is secured to the cross-arm of the pole in any convenient and
usual manner. The
guard A and the supporting member B are made of insulating material of
some kind, commonly glass, porcelain, or vulcanite.
I prefer to make the shank C of wood. I
find that an insulator constructed in this way is light, strong, and
durable, is more cheaply manufactured than any other insulating-support
of this class, and is very convenient of manipulation and attachment. Having
thus described my invention, what I desire to claim as new, and to cover
by Letters Patent, is-- 1.
A main-line insulator and support consisting of a shank, a central
supporting member removably secured to the same, a groove in said
supporting member whereby the main wire is attached thereto, and an
annular guard removably attached to said shank and surrounding said
supporting member in such a way as to shed rain, moisture, &c.,
there-from, substantially as described. 2.
A main-line insulator and support consisting of the shank C, the central
supporting member B, removably attached thereto and provided with the
grooves B', B", and the annular guard A surrounding the supporting
member B, so as to shed moisture, rain, &c., said guard A, being
removably attached to the shank C, substantially as described. 3.
A main-line insulator and support consisting of a shank, a central
supporting member removably secured to the same, means whereby the main
wire may be attached to said supporting member, and an annular guard
removably attached to said shank and surrounding and protecting the
supporting member from moisture, rain, &c. substantially as
described.
RALPH G. HEMINGRAY. Witnesses:
CLARENCE E. MEHLHOPE,
GEORGE HEIDENAN.
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