Improvements in Fixings for Exposed Telegraph Wires to + jj. Insulators.
Year: 1890

page_text: Date of Application, 20th Nov., 1890
Complete Specification Left, 19th Aug., 1891-Accepted, 15th Sept., 1591
PROVISIONAL SPECIFICATION.
[Communicated from abroad by Dr. João NEPOMUCONO BAPTISTA, Director
General of Telegraphs, Rio de Janeiro, U.S. of Brazil.].
Improvements in Fixings for Exposed Telegraph Wires to
+ jj.
Insulators.
I, OLIVER IMRAY of No. 28 Southampton Buildings, Chancery Lane in the
County of London Fellow of the Institute of Patent Agents, do hereby declare the
nature of this invention to be as follows:-
This invention relates to fixings of exposed telegraph wires to insulators so as to
prevent them from being moved in the direction of their length, as will be described
referring to the accompanying drawings.
Fig. I is an end view and Fig. 2 is a side view of the upper part of an insulator I,
such as is usually made of ceramic material, with a telegraph wire W laid along a
channel formed in the top of the insulator and prevented from rising by a split cross
pin P. According to the present invention, a clamp C is pinched by a screw on
the wire W at each side of the insulator, the wire being thus prevented from moving
lengthwise. Instead of separate clamps C as shown in Figs. 1 and 2, the clamps
may be made in pairs connected together as shown in end view Fig. 3, in longi-
tudinal section Fig. 4 and in plan Fig. 5. The two clamps C are made in one
piece with a connecting bar D which extends across the insulator I over the
wire W. The pair of clamps and the bar connecting them may all be punched
from metal plate, the ends being bent to form the clamps, which obviously may be
varied in form, and the forms may be varied to suit different forms of insulators,
as may be readily understood. In some cases the conducting wire is introduced by
an inclined slot at the side, as shewn in Fig. 6, in which case, as in the other forms
of insulators the clamps serve to prevent longitudinal movement of the wire.
Dated this 20th day of November 1890.
ABEL & IMRAY,
Agents for the Applicant.
Improvements in Fixings for Exposed Telegraph Wires to
Insulators.
I, OLIVER IMRAY of No. 28 Southampton Buildings, Chancery Lane, in the
County of London, Fellow of the Institute of Patent Agents, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed to be particularly described and ascertained in and by the following
statement:-
This invention relates to fixings of exposed telegraph wires to insulators so as to
prevent them from being moved in the direction of their length, as will be described
referring to the drawings accompanying my Provisional Specification.
Fig. 1 is an eud view and Fig. 2 is a side view of the upper part of an insulator I
such as is usually made of ceramic material with a telegraph wire W laid along a
channel formed in the top of the insulator and prevented from rising by a split
cross pin P. According to the present invention, a clamp C is pinched by a screw
on the wire W at each side of the insulator, the wire being thus prevented from
moving lengthwise.

page_text: Instead of separate clamps C as shewn in Figs. 1 and 2, the clamps may be made
in pairs connected together as shewn in end view Fig. 3, in longitudinal section
Fig. 4, and in plan Fig. 5. The two clamps C₁are made in one piece with a
connecting bar D which extends across the insulator I over the wire W. The pair
of clamps and bar may all be punched to suitable form, from metal plate, and the
ends bent to form the clamps.
In some cases as shewn in Fig. 6 the wire W is introduced through an inclined
slot the clamps above described may be applied to such insulators to prevent
longitudinal movement of the wire.
;
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. Securing telegraphic wires lengthwise in insulators by means of a clamp pinclied
on the wire on each side of the insulator, substantially as described with reference
to the accompanying drawings.
2. The construction of a pair of clamps and their connecting bar substantially as
described with reference to Figs. 3, 4 and 5.
Dated this 19th day of August 1891.
ABEL & IMRAY,
Agents for the Applica