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To all whom it may concern: Be
it known that I, HORATIO READ,
of Jersey City, in the county of Hudson, in the State of New Jersey, have
invented a new and useful Improvement in Insulators; and I do hereby
declare the following to be a full, clear, and exact description thereof,
which will enable those skilled in the art to make and use the same,
reference being had to the accompanying drawing forming part of this
specification, in which drawing-- Figure
1 represents a vertical central section of this invention. Fig.
2 is a transverse section thereof. Similar
letters indicate corresponding parts. This
invention consists in the arrangement of a metal screw-socket in the
interior of a glass insulator, in combination with a corresponding
supporting-screw, in such a manner that said insulator can be secured to
telegraph-poles or to buildings, or wherever it may be desired, in any
position, with the greatest ease and facility. A represents a glass insulator, such as is commonly used for the purpose of insulating telegraph-wires or conductors of electrical currents. In the interior of this insulator I secure a metal socket, a, which is fastened by cement or by pressing it into the glass, or in any other desirable manner, and which is provided with an internal screw-thread, as shown. This screw-thread may be longer or shorter, and if desired only used, so that half a turn Would be |
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sufficient
to fasten the insulator to the desired spot. The screw-thread in the
socket fits on a thread cut on the end of a pin, B, which serves to
support the insulator. This pin is secured to the telegraph-pole or
building, or to any other place where the insulator is to be attached,
and it will be readily seen that, by means of my screw-socket, the
operation of attaching a glass insulator is materially facilitated. It
will be seen that the insulator is firmly supported on the pin B. The
screw-socket a is placed at the base of the opening, which receives the
projecting pin so that the plain or unthreaded part of this pin bears
against the sides of the opening or cavity, and serves to support the
insulator while the screw-socket prevents its displacement. These two
features are necessary in consequence of the great strain upon the
insulator. Having
thus described my invention, what I claim as new, and desire to secure
by Letters Patent, is-- A
telegraph-insulator, A, provided with a smooth socket, in the inner part
of which is secured a metallic screw-thimble, a, to screw on the
supporting-pin, while the outer portion of said socket forms a guide for
the body of the supporting-pin, substantially as described.
HORATIO READ. Witnesses: W.
HAUFF, B. F. KASTENHUBER. |