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To all whom it may concern: Be
it known that I, LOUIS FORT,
a citizen of the United States, and a resident of Jersey City, in the
county of Hudson and State of New Jersey, have invented certain new and
useful improvements in Insulators and Supports Therefore, of which the
following is a full, clear, and exact description, whereby any one
skilled in the art may make and use the same. The
invention relates to insulators and particularly to a combined insulator
and support adapted for holding and insulating an electrical conductor. The
object of the invention is to provide a simple and effective device for
supporting and insulating conductors. A
further object is to provide a device which will not only support the
conductor but will thoroughly insulate even under conditions of great
moisture. A
still further object is to provide a separable insulating member which
may be utilized with a separable bracket member, giving great facility
for applying and adjusting the device to the conductor. Referring
to the drawings: Figure
1 is an illustrative view showing the device applied to a pole and
holding the conductor for an arc lamp. Fig.
2 is a view of the bracket and insulator in side elevation. Fig.
3 is a front face view of the device shown in Fig. 2 looking from the
right of said figure. Fig.
4 is a face view of one of the insulating members. Fig.
5 is a cross sectional view of the insulator, showing the grooves and
beads. In
many instances, it is desirable to firmly hold a conductor in a definite
position and it is also necessary to so hold said conductor that it will
be thoroughly insulated from the support which sustains it. It
is one of the objects of the present invention to provide an insulator
which will thoroughly insulate the conductor even under extreme
conditions of moisture and which may be readily applied to the
conductor. As
illustrated in Fig. 1, the device is shown in conjunction with the
leading wires which extend from the line wires to a lamp and are held
against the side of a pole or like support. The
device consists essentially of a holding and insulating member 1, and a
bracket member 2. The
bracket member is preferably formed with a base piece 3, provided with
suitable perforations 4, 5, through which may be extended lag screws or
other devices for holding said base to a pole, wall of like support.
Extending from said base is an arm 6, which may be of any desired
length. This arm has a semicircular portion 7, which, in conjunction
with a similarly formed clamping member 8, forms a seat within which may
be clamped the insulator 1, as by the medium of bolts and nuts 8, 10. The
enlarged or circular portions of the bracket member and cooperating
clamping member are preferably cut away as at 11, not only to lighten
the structure, but to reduce the metal surface surrounding the porcelain
or other conducting material 1. The
bracket or holder is preferably formed of a non-corrosive metal, such as
galvanized malleable iron, while the insulator 1 is preferably formed of
brown glazed porcelain which is very vitreous. The insulating member 1 is formed in two sections 12, 13, which sections, when in place form an insulator having a cone shaped water shedding top 14, provided with an annular groove 15, within which rest the bracket of the clamping member and at the lower end is provided with a skirt 16. The semicircular opening 17, is formed in each of the halves and as illustrated in Fig. 4 is serrated as at 18, so that as the two halves are clamped about the insulation of the |
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conductor,
these serrations become embedded in said insulating material and prevent
moisture which would tend to run down the insulator working between the
conductor and the interior surface of the insulator. In order to increase the surface insulation between the
bracket members and the conductor, an annular groove 19, and an annular
bead 20 are arranged upon the face of each half of the insulator and
extend lengthwise thereof between the central serrated opening and the
holding groove 15. These grooves and beads being arranged upon both sections of the insulator form an interlock to prevent displacement of the insulating sections and also provide a greater insulating surface at the line of partition of the two sections. It is obvious from the above description that the two insulating sections may be readily applied to the conductor on opposite sides and when bound by the bracket and clamp members 7 and 8, they will securely hold the conductor in definite position with reference to the supporting pole, wall or the like to which the bracket 6, is secured. The
serrating of the central clamp opening of the insulator is important as
above defined, as it prevents moisture at the inner side of the
insulator and between it and the conductor.
Likewise, the grooves and the beads are important, giving an
added insulating function. These
devices permit the use of a split insulator which is even more effective
than a solid insulator would be. Obviously,
the exact details of the device might be varied to a considerable extend
without departing from the spirit or intent of the invention which
contemplates a clamping bracket readily adjustable to the insulator and
the split insulator with its features of added insulation due to its
constructional form. What
I claim as my invention and desire to secure by Letters Patent is: 1.
In a device of the character described, a bracket member and a clamping
member cooperating therewith and secured to the bracket member on
opposite sides of an insulator, a two-part insulator of the petticoat
type having a conical head and a dependent skirt and a central annular
portion engaged by the bracket and clamp to prevent longitudinal
movement of the insulator, a central opening formed in part in each
section of the insulator and serrated to engage and be impressed in the
insulation of a wire to be held, interlocking beads and grooves arranged
upon the meeting faces of the two parts of the insulating members and
separated from the central opening and the bracket member by the
intermediate flat meeting faces of the two parts of the insulator,
whereby the insulator parts may be firmly embedded with respect to the
contained wire upon a clamping action of the clamp with reference to its
supporting bracket. 2.
In a device of the character described, a two-part insulator of the
petticoat type having a conical head and a dependent skirt and a central
opening formed in part in each section of the two-part insulator,
serrations formed in the central opening of the insulator adapted to be
embedded in the insulation of a wire to be clamped, upon compression
exerted by a clamping member, a bracket forming one part of a clamping
member and a clamping member cooperating therewith and adapted to
compress the two parts of the insulator against the wire and
interlocking grooves and beads upon the meeting faces of the two-part
insulator adapted to be brought into registering engagement by the clamp
and increasing the insulating surface at the partition face of the
insulating sections substantially as described.
LOUIS FORT Witnesses: ANTHONY
MELOW, GEO. C. L. MAES. |