Improvements in Brackets or Supports for insulators for Telegraphic, Telephonic, and other like Purposes.
Year: 1893

page_text: Date of Application, 3rd Nov., 1893
Complete Specification Left, 12th July, 1894-Accepted, 8th Sept., 1894
PROVISIONAL SPECIFICATION.
Improvements in Brackets or Supports for insulators for Telegraphic,
Telephonic, and other like Purposes.
We, BULLERS LIMITED, of Sherlock Street, Birmingham, in the County of
Warwick, Telegraph Engineers and Manufacturers, and EDWARD JOHN
CHAMBERS, of " Lingwood," St. James' Road, Dudley, in the County of
Worcester, Civil and Mechanical Engineer and Director of Bullers Limited,
aforesaid do hereby declare the nature of this invention to be as follows:-
The said invention consists essentially of a bracket or support made in the
manner hereinafter described, whereby four insulators are carried in such relative
positions that the wires attached to the said insulators are situated respectively at
the angles of a square in a plane cutting the said wires at right angles.
By the use of brackets or supports made according to the said invention the
carrying capacity of the arms to which they are fixed is very materially increased
and the wires attached to the insulators of the said brackets or supports may
either be carried from post to post, each wire preserving the same line or the said
wires may be so carried that in proceeding from one post to another each wire leaves
the angle of the square herein before referred to and takes a position at one of the
adjacent angles of the said square so that the said wire, in proceeding from post to
post, will have performed on reaching the fifth post one convolution of a spiral, the
pitch of which is the distance between the first and fifth posts.
A bracket or support made according to the said invention consists of an iron or
steel bar crossing the arm on the telegraph or other post and fixed thereto by a
headed screw bolt and nut the bolt passing through the said bracket or support
and the said arm. The said bar is so.fashioned that it depends below and on each
side of the arm carrying it and each end of the said bar is forked the branches of
the forks being turned upwards in vertical lines for carrying the insulators. The
bent down part of the said bar on one side of the said arm is about double the
length of the bent down part of the bar on the other side of the said arm so that
the two insulators carried by the bar on one side of the arm one at a different level
from those on the other side of the said arm the distance between the levels of
the insulators being equal to their horizontal distance apart.
The screw bolt by which the bracket is fixed to the arm may be surmounted by
a vertical pin carrying a fifth insulator.
Although we have described the said bracket or support as carrying only four
insulators yet the forks of the bracket may have three or more branches so that
each end of the bracket may carry three or more insulators.
Although we prefer to arrange the branches of the bracket or support as
described yet they may be so modified that one or both may be situated above the
arm carrying, the said bracket; and instead of the brauches of the bracket being
on opposite sides of the bar they may both be on the same side.
Brackets or supports made according to the said invention may be fixed direct
to the telegraph or other post or to a wall or other surface.
Dated this 3rd day of November 1893.
W. T. WHITEMAN,
Agent for the Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Brackets or Supports for Insulators for Telegraphic,.
Telephonic, and other like Purposes.
We BULLERS LIMITED, of Sherlock Street, Birmingham in the County of
Warwick, Telegraph Engineers and Manufacturers, and EDWARD JOHN
CHAMBERS, of "Lingwood," St. James' Road Dudley in the County of
Worcester, Civil and Mechanical Engineer and Director of Bullers Limited,
aforesaid, do hereby declare the nature of the said invention and in what manner
the same is to be performed to be particularly described and ascertained in and by
the following statement:-
The said invention consists essentially of a bracket or support made in the
manner hereinafter described, whereby four insulators are carried in such relative
positions that the wires attached to the said insulators are situated respectively at
the angles of a square in a plane cutting the said wires at right angles.
By the use of brackets or supports made according to the said invention the
carrying capacity of the arms to which they are fixed is very materially increased
and the wires attached to the insulators of the said brackets or supports may
either be carried from post to post each wire preserving the same line, or the said
wires may be so carried that in proceeding from one post to another each wire
leaves the angle of the square hereinbefore referred to and takes a position at one
of the adjacant angles of the said square so that the said wire, in proceeding from
post to post, will have performed on reaching the fifth post one convolution of a
spiral, the pitch of which is the distance between the first and fifth posts.
A bracket or support made according to the said invention consists of an iron or
steel bar crossing the arm on the telegraph or other post and fixed thereto by a
headed screw bolt and nut, the bolt passing through the said bracket or support and
through the said arm. The said bar is so fashioned that it depends below and on
each side of the arm carrying it and each end of the said bar is forked the branches
of the forks being turned upwards in vertical lines for carrying the insulators.
The bent down part of the said bar on one side of the said arm is about double the
length of the bent down part of the bar on the other side of the said arm so that
the two insulators carried by the bar on one side of the arm are at a different level
from those on the other side of the said arm the distance between the levels of the
insulators being equal to their horizontal distance apart.
The screw bolt by which the bracket is fixed to the arm may be surmounted by
a vertical pin carrying a fifth insulator.
Although we have described the said bracket or support as carrying only four
insulators, yet the forks of the bracket may have three or more branches so that
each end of the bracket may carry three or more insulators.
Although we prefer to arrange the branches of the bracket or support as described
yet they may be so modified that one or both may be situated above the arm
carrying the said bracket; and instead of the branches of the bracket being on
opposite sides of the bar they may both be on the same side.
Brackets or supports made according to the said invention may be fixed direct to
the telegraph or other post or to a wall or other surface.
Figure 1 of the accompanying drawings represents in front elevation; Figure 2
in plan and Figure 3 in side elevation, a bracket or support for insulators
constructed according to this invention, secured to an arm on a telegraph or
other post.
a is the body part of the bracket made from a bar or rod of iron or steel
preferably), the said body a depending on each side of the wooden armb
(see Figure 3) on which the said bracket is fixed by the screw bolt and nut at c;
a', a², a³, a' are the branches of the forked ends of the said bracket a the branches

page_text: on each end being turned outwards or away from each other and then upwards for
the purpose of carrying the insulators d, d indicated in dotted lines in the drawing.
The ends of the branches a', a², a³, a are screw threaded for fixing the insulators d, d
to them in the ordinary way.
Or the insulators may be cemented to the arms without the screw threads.
We wish it to be understood that we do not limit ourselves to forming the body
of the bracket or support a of the figure represented as its figure may be variously
modified as in the examples shown in Figures 4, 5, 6, 7 and 8. In the modification
Figures 4 and 5 we have represented in front elevation aud side elevation
respectively a bracket or support the body a of which stands above the arm b of
the telegraph or other post, and in the modification Figures 6, 7 and 8 we have
represented in front elevation, side elevation and plan respectively, a bracket or
support in which the branches are situated on one side only of the arm b.
Figures 9, 10 and 11 represent in side elevation, plan and front elevation
respectively, a bracket or support fixed directly to the telegraph or other post
or pole.
In all the figures represented in the drawings it will be seen that each of the
forked ends of the body of the bracket or support consists of two branches only
and the several branches are so disposed with respect to each other that on
connecting wires to the insulators carried by them the said wires occupy the angles
of a square in a plane cutting the said wires at right angles as will be best seen by
referring to Figures 1, 4, 6 and 11. This arrangement is that which we prefer to
adopt as it permits of the spiral winding of the wires carried by the insulators on
the bracket or support as hereinbefore referred to. When however the increased
carrying capacity alone is the desired object, we may form each of the forked ends
of the bracket of three or more branches and the fixing bolt c may be surmounted
by a vertical pin for carrying an insulator.
Brackets or supports made according to this invention have in addition to the
advantages herein before pointed out, the further advantage that the insulators
carried by them do not change their position with respect to each other as is
frequently the case when the stalks of the insulators are fixed on wooden supports
in consequence of the shrinkage, warping or springing of the said wooden
supports.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed we declare that
we claim as the said invention of "Improvements in brackets or supports for
telegraphic, telephonic and other like purposes'
First. Making the said brackets or supports each of a metallic rod or bar each
end of which is divided into two branches each branch carrying an insulator, the
four branches being so arranged that the wires carried by the insulators are always
situated at the angles of a square in a plane cutting the said wires at right angles,
thus permitting the wires to be carried along spirally round a common axis without
altering their relative positions at the angles of a square substantially as herein-
before described and illustrated in the accompanying drawings.
Secondly. Making the said brackets or supports, each of a metallic rod or bar
the ends of which are forked, each forked end consisting of two three or more
branches for carrying the insulators substantially as and for the purpose hereinbefore
described and illustrated in the accompanying drawings.
Dated the Tenth day of July 1894.
BULLERS LIMITED,
By H. K. DRYDEN, Secretary.
EDWARD JOHN CHAMBERS.