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To all whom it may concern: Be
it known that I, ZENAS C. BOBBINS,
of the city of Washington, in the District of Columbia, have invented a
new and Improved Insulating Supporter for Telegraph Wires; and I do
hereby declare that the following is a full and exact description
thereof, reference being had to the accompanying drawings, making a part
of this specification. Figure
1 is a front view of my insulating supporter; Fig. 2, a rear view; Fig.
3, a view of its inner side; Fig. 4, a top view; Fig. 5, a side
elevation; and Fig. 6, a vertical section of the same in the lines x, x,
of Figs. 1, 2, 3 and 4. Similar
letters indicate like parts in all the figures. My
improved insulating supporter for telegraph wires, is composed of the
supporting and protecting cover A, the winged conical tube B, the wire
holder C, and the insulating segments d, d, arranged and combined with
each other substantially as represented in the drawings and hereinafter
set forth. The
form of the supporting and protecting cover A, is clearly shown in the
drawings; being open at its lower side and inner end, and its top and
sides being sufficiently flaring to admit of its being molded and cast
in metal without the use of a core.
The flanches a, a, which project laterally from the inner
extremities of the sides of the supporting and protecting cover A, have
conical shaped holes cast in them, which receive nails --or screws-- for
confining the said cover to a post or other supporter.
The ledge f, which projects inwardly from the sides and curved
outer end of the said supporting and protecting cover, furnishes a
support to the winged conical tube B. The conical aperture in the winged tube B, is smallest at its
lower end; and the conical outer periphery of the said tube, is smallest
at its upper end; which form enables the said tube to be easily molded
for casting. The wing b, projecting from the side of the tube B, serves
to push the said tube firmly into the outer end of the supporting and
protecting cover A, and retain it there when the said cover is nailed to
a post or other supporter. The wire holder C, has at its upper end an enlarged head, and at its lower end a hook, or other suitable contrivance for holding the wire. The head of the wire holder is secured within the winged conical |
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tube
B, and
at the same time
insulated, by segments d, d, of gutta percha, or other suitable
material; which are of such a shape and size as to cover the top and
sides of the head of the said wire holder, and to fit so closely into
the aperture in the winged tube B, as to prevent the head of the said
wire holder from being drawn through the said tube, at the same time
that they prevent the possibility of its coming in contact with the said
tube, or with the under side of the top of the supporting and protecting
cover A. The flanch g, which projects outwardly from the lower edges of
the sides and outer end of the supporting and protecting cover A, serves
to prevent water and snow from being driven under the cover and
destroying the insulation of the wire holder. The
wire holder C, has an additional protection against injury to its
perfect insulation, by having the insulating segments d, d, descend
thereon some distance below the bottom of the tube B; which segments
serve to keep the shank of the said wire holder dry, and thereby prevent
all conducting connection between the said holder and the tube B, and
also between it and the supporting and protecting cover A. The
telegraph wire may be securely fixed within the wire holder by means of
a piece of small annealed wire; or may be so secured therein that it can
have free longitudinal play. The points h, i, which project from the
sides of the wire holder C, serve a double purpose, viz: first, they aid
in confining the What
I claim as my invention and desire to secure by Letters Patent, is-- My
improved insulating supporter for telegraph wires, composed of the
supporting and protecting cover A, the winged tube B, the wire holder C,
and the insulating segments d, d, arranged and combined with each other
substantially in the manner herein represented and described. Z.
C. ROBBINS. Witnesses: J.
S. BROWN, J. DENNIS, Jr. |