|
To all whom it may concern: Be
it known that I, MORTON HARLOE,
a citizen of the United States, residing at Hawley, in the county of
Wayne and State of Pennsylvania, have invented certain new and useful
Improvements in Insulators for Electrical Wires, of which the following
is a specification, reference being had therein to the accompanying
drawings. This
invention relates to insulators for electrical conduction-wires, and has
for its objects to provide such insulator in a simplified form, to
dispense with the necessity of tying the insulated wire, and to provide
greater preservation for the wire insulated and other objects, as herein
set forth, and more fully pointed out in the claims. In
setting forth the invention reference is had to the accompanying
drawings, forming a part of this specification, in which similar
characters of reference denote like and corresponding parts in the
several views. Figure
1 is a side elevation of parts of one of my insulators, the upper and
lower parts being partially separated to more fully show the
construction thereof. Fig.
2 is a view, partly in cross-section, taken on the line x x of Fig. 1
when all the parts are assembled. Fig.
3 is a top view of one of my insulators, partly in cross-section, on the
line y y of Figs. 2 or 5 and showing in dotted lines one of the motions
of the device requisite in fastening the wires thereto.
Fig. 4 is a substitute form of my device when constructed from a
solid piece of glass or porcelain instead of being provided with a
wooden standard, as in Figs. 1 and 2.
Fig. 5 is a view, partly in cross-section, taken on the line t u
of Fig. 4. Fig. 6 is a
general view of my device in use, showing it in both horizontal and
vertical positions. Referring to Figs. 1 and 2, my insulator is constructed from two main pieces A and B, the base-piece B being preferably constructed from wood and having a flat side or bottom adapted to sit on a flat surface and to remain slidable thereon during the use of the device. This base-piece B is screwed to the surface of its support by means of a screw C, which extends downward through it at one side of its center through the hole B. This base-piece is further provided with a screw-threaded shank
B, adapted to engage with the inwardly screw-threaded portion F of the
upper or main piece A, which piece is adapted to be screwed fast to the
base-piece B and to turn there-with after insertion of the screw C to
its place, the said screw being the only means of securing the insulator
to its position. The main
piece is particularly constructed with a cut G, winding in a zigzag
shape partially under the cap H of the main part and also cutting under
projections I I' of the main piece A.
This groove in the particular form of my invention here shown is
designed to make three angles in the wire secured to the insulator, one
main angle J curving around the stud K and minor angles j j, where the
wire L is pressed under the projections I I'.
The main portion of my insulator is also provided with a neck M,
to which a tying-wire maybe secured and the wire attached as in the
ordinary form of insulators now in use. This groove is also particularly required where it is desired
to run a branch wire fro in the main at any point of insulation. The
tension may thus he applied to the main body of the insulator without
straining the upper part thereof, which is intended for the main line
only. In the substitute form of my insulator (shown in Figs. 4
and 5 specially) the main part thereof is hollowed out at N in order to
economize in the material for making the same and the fastening-screw O
extends from the top of the insulator through to the base, being
fastened as described for the form in which the base is made of wood and
remaining slidable or revoluble on the screw for the same purpose.
This form dispenses with the wooden base entirely.
In both forms the insulator is petticoated, as at P and P'.
In the substitute form the petticoat is constructed by the groove
Q extending around the main body of the insulator, forming the
overhanging portion or petticoat P'. |
 |
|
|
The operation of the device may now be more fully explained.
In connecting a wire to the insulator the insulator is swung
sidewise on the vertical screw O as a center until the wire L maybe laid
into one portion of the groove G, heretofore described, as shown in Fig.
3. The insulator is then
swung in the direction
of the arrow, the projection I' extending over the wire Land forming the
bend j therein, this being at the taut side faced toward the
already-fastened end of the wire L. The
other loose end is now bent into the an angle J, around the inner angle
of the stud K, and pressed around into the opposite end of the groove G
and under the projection I, when the hand may be released from the wire
L without danger of its slipping from its fastenings; but the insulator
before the opposite end of the wire is fastened will naturally sag or
swing toward the point of greatest tension, which will be corrected when
the next fastening in advance is made during the course of stringing the
wires. The
crown or cap H has projecting ends h h, adapted to assist in guiding the
wire into its place during the process of stringing.
It also projects forward at h' to form an overhanging projection
to assist in keeping the wire L in its place during any great agitation
thereof. It overhangs
sufficiently so that, taken in connection with the projections I and I',
the wire after being once inserted cannot be removed without either
breaking off the projections or finding considerable more slack than is
likely to be left by accident in stringing the wire. This
specification discloses two particular forms of insulator embodying my
invention. It is evident that many of the details may be varied without
departing from the general spirit thereof. Having
thus described my invention, what I claim, and desire to secure by
Letters Patent, is-- 1. An insulator having a body portion with means for mounting it to
swing, the body portion having located thereon a stud capped with an
overhanging flange a
circuitous groove winding between said capped stud and
oppositely-directed projections, into which groove the wire to be
insulated is adapted to be bent and to be retained by the projections and
capped stud aforesaid, and an upwardly-cut groove extending around the
body portion forming a petticoat thereon, substantially as specified. 2.
An insulator having a body portion constructed from two separate pieces,
a lower or base piece adapted to be mounted eccentrically by a vertical
screw or pin securing the same loosely to any suitable support, together
with a top piece adapted to be screwed to the base piece aforesaid and
rigidly fastened thereto and adapted to swing therewith eccentrically in
the operation of lining the wire to be insulated, the said top piece
being provided with a circuitous groove cut through the body thereof,
and the wire to be insulated adapted to be secured within the said
groove, substantially as specified. 3.
An insulator having a body portion constructed from an upper and lower
piece adapted to be screwed together and means formed on the upper body
portion around which the wires to be insulated may be bent to secure the
wire, such means being capable of engaging the wire, to bend the same as
the insulator is swung first to one side and then to the other. 4.
The herein-described insulator consisting of a body portion having an
eccentric vertical bore therethrough and a pin adapted to pass
therethrough and secure the same, the said body portion being provided
with a neck adapted to receive tying-wire, and also with a circuitous
groove and projections on the body thereof adapted to secure and hold
the main or line wire in combination with an upwardly cut groove forming
a petticoat on the said body portion, substantially as specified. In testimony whereof I affix my signature in presence of
two witnesses.
MORTON HARLOE. Witnesses: GEO.
GELATT, D. G. MORAN.
|