Improvements in Electric Insulators.
Year: 1896

page_text: Date of Application, 21st July, 1896-Accepted, 12th Sept., 1896
GUNIT HIDED
Improvements in Electric Insulators.
I, BENJAMIN DU BOIS SMOCк, a citizen of the United States residing at
Wickatunk, in the County of Monmouth and State of New Jersey, United States
of America, Inventor, do hereby declare the nature of this invention and in what
manner the same is to be performed to be particularly described and ascertained in
and by the following statement:-
My invention relates to certain new and useful improvements in insulators for
the support of electric wires together with improved supports therefor and the
like and it has for its object to provide a simple and cheap insulator, and support
readily applied and one by which the wires will be securely and firmly held and
from which they cannot become accidentally displaced. My insulator is designed
to be used either upon the upper end of a pcle or other support or from a suspending
device of any sort. The invention is capable of embodiment in various forms some
of which only are herein illustrated. The insulator may be made of various shapes
and sizes.
Other objects and advantages of the invention will hereinafter appear and the
novel features thereof will be specifically defined by the appended claims.
The invention is clearly illustrated in the accompanying drawing, with the letters
of reference marked thereon, form a part of this specification, and in which,
Fig. 1, is a perspective view of one form of my improved insulator.
Fig. 2, shows the same form supported upon the upper end of an upright.
Fig. 3, is a view of the wedge employed.
Fig. 4, is a view of a modified form.
Fig. 5, is a view of still another modification.
Fig. 6, shows the manner in which the insulators are secured in position upon
the cross-bar of a telegraph pole.
Fig. 7, is a plan view, of one of my improved support and brace bars, and,
Fig. 8, perspective view of the retaining nut used on the hanger.
Like letters of reference indicate similar parts throughout the several views.
Referring now to the details of the drawings by letter A, designates the insulator
of glass or other suitable material preferably substantially cone-shaped as shown
and seen in Fig. 1, and is formed with a hole 13, for the reception of the hook C, or
hanger which may be suspended from any suitable support. The insulator is further
provided with au opening D, for the reception of the wire E, and this opening has
an inclining outlet F, through which the wire may be introduced and further with
an opening a, through which the anchor wire B', may be passed and the ends
thereof are wound upon the wire E, as shown, all of the holes in the insulators are
preferably beveled outwards to prevent the lodgment of snow and ice. After the
wire E, is in position it may be secured against accidental displacement in any
suitable manner; I have shown a wedge G, which is provided with ribs 9, adapted
to enter corresponding recesses or grooves in the opposite walls of the inclining
opening in the body portion of the insulator.
For further security the wedge is shown as provided with an opening through
which and an opening a' in the body portion of the insulator may be placed a wire G'
to fasten the wedge in place.
When the insulator is to be used on a pole or other support as seen in Fig. 2, the
opening or hole B is dispensed with and in the large end of the body portion is
formed an opening into which the support X may be inserted; this opening may

page_text: be screw-threaded if desired. The insulator when used in an inverted position
shows what it is when suspended from a hanger as will be readily understood.
It will be understood that this peculiar hanger pin is new and forms an essential
part of this invention as it is necessary to use such an hanger with this insulator.
In Fig. 4, I have shown a modified form adapted to be suspended from a hanger,
and in which the horizontal portion is formed in two parts separably so as to admit
of the application thereof to a stretch of wire already in place, the two parts being
held together by the use of clamps I. Au insulator of this form can be also
fastened for use upon the end of the pole by making a hole into the end thereof
similar to the form shown in Fig. 2.
Modifications in detail may be resorted to without departing from the spirit of my
invention or sacrificing any of its advantages. For instance in Fig. 5 I have shown
one of the various modifications that may be employed; in this form of the recess J
is provided in the end of the body portion for the reception of the anchor wire. The
wedge may be applied otherwise than in the form shown in Figs. 1, and 2, as
indicated in said Fig. 5.
The facility with which the device may be attached to a cross-tree is important.
It may be readily attached by a double hanger pin and permits the use of lower
poles, a diminished number of cross-trees and facilitates the unhooking and
repairing.
When many wires are required, a pole or post L, may be employed, to the
upper end of which is secured a cross-bar M, in any suitable manner which is
provided with a series of vertical holes or openings and to more securely retain
the cross bar M, in position, diagonal braces m, are employed, one end of which is
secured to said bar and the opposite end to the post or pole L, thereby securing
greater rigidity to the cross bar and into the vertical hole in said cross bar are
passed my improved hangers C, which are preferably secured in any desired
position therein by means of pius or bolts N, so that the hangers may be
adjustably secured in said holes with relation to the cross bars and below the
cross bar and supported by the vertical bolts or rods O, one end of which bolts is
secured in the ends of the cross bar and the opposite end of which is provided
with a out head and is supported by said nut or head, and I provide a brace bar
or support P, which consists of two parallel or similar bars or posts through
which pass a series of bolts Q which are arranged at predetermined distances
therein and between which bolts passes the depending ends of the hangers C, and
if desired, an additional row of hangers may be secured to said support or brace
and depend therefrom, by means of a top or nut secured on the upper screw-
threaded end of said hangers, as clearly shown in Fig. 6, by means of this
construction, any number of hangers may be used with only one cross bar by
employing my improved brace bar or support and it will be seen that by this
means great lightness is secured and any number of hangers can be employed, and
it will be observed, that in practice, my improved hanger piu is adapted to be
inserted from below through the cross bar or support, and fastened in position in
said cross bar or support, either by means of pins as shown in the former instance
or by a nut which is employed in the latter case, but I do not confine myself to
either of these means of securing said banger piu, or other equivalent means may
be employed and these brace bars or supports are made to be added at any time
and any corresponding number of hauger pins under reasonable limit may be
employed, but twenty-eight insulators may be used with much less strain and with
a far lighter pole and cross bar than required where only ten are now used by the
method at present employed.
I also may use a screw-button or protector R, shown in detail in Fig. 8, and
in those on the extremity of the hanger pin C, in Figs. 1 and 6, but the use of
this screw-button or protector is purely optional and I may use the same if
desired, and I may also use this screw-button upon the upper screw-threaded end
of the hanger pin to retain the same in position and it will also be understood that
I do not confine myself to this specific form of hanger pin herein described and

page_text: shown or the material from which the same is made, as the construction of the
hanger pin may be moved and changed without departing from the spirit and scope
of this invention and I therefore reserve the right to make all such changes in and
modifications of the construction herein shown and described, as fairly come within
the spirit and scope of the invention.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. An insulator consisting of a body portion having an opening to receive a
wire and means for the attachment of an anchor wire, substantially as specified.
2. An insulator consisting of a body portion having nu opening to receive a
wire and a ribbed wedge adapted to be inserted to hold the wire therein, as set
forth.
3. An insulator consisting of a body portion with an opening with inclined
outlet having grooves, and a removable wedge having ribs fast to said grooves,
substantially as specified.
4. An insulator consisting of a body portion having an opening for the reception
of a wire composed of two separable parts provided with a clamp, substantially as
specified.
5. A brace bar or support adapted to be connected with a pole or post adapted
to receive and support hanger pins, and from which additional hanger pins depend,
substantially as shown and described.
6. A hanger pin consisting of a rod or bar, one end of which is screw-threaded
and the lower end of which is tapered and bent upon itself to form a hook adapted
to engage an opening in the insulator and support the same, substantially as shown
and described.
7. The combination with a pole or post, to the upper end of which is secured a
cross bar provided with vertical openings, of a brace bar or support adapted to
be secured adjacent to said cross bar, diagonal braces secured to said cross bar and
said pole to afford additional security for the former, substantially as shown and
described.
8. The combination with a pole or post, to the upper end of which is secured a
cross bar provided with vertical openings, of a brace bar or support adapted to
be secured adjacent to said cross bar, diagonal braces secured to said cross bar
and said pole to afford additional security for the former, hauger pins secured in
said cross bar and extending through the brace bar or support, an additional row
of hanger pins supported from said brace bar or support, substantially as shown
and described.
9. The combination with a pole or post, to the upper end of which is secured a
cross bar provided with vertical openings, of a brace bar or support adapted to be
secured adjacent to said cross bar, diagonal braces secured to said cross bar and
extending through the brace bar or support, an additional row of hanger pins,
supported from said brace bar or support and an insulator with an opening in the
one end thereof and adapted to receive the bent end of the hanger pin, and a
screw-button adapted to be secured upon the bent end of the hanger pin to retain
the insulator thereon, substantially as shown and described.
Dated this 20th day of July 1896.
WHEATLEY & MACKENZIE,
40 Chancery Lane, Loudon, W.C., Agents.