Improvements in Insulator Pins or Standards.
Year: 1893

page_text: Date of Application, 29th Mar., 1893-Accepted, 2nd June, 1893
COMPLETE SPECIFICATION.
Improvements in Insulator Pins or Standards.
We, FRED MORTON LOCKE, JOHN JOSEPH DONNELLY, and THOMAS
ROBERT WOOD, all of Victor Ontario County, New York State in the United
States of America, Manufacturers 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 :-
Our invention relates to insulator pins or standards.
Our object is to produce an insulator pin adapted to receive an insulating cap of
any design desired, and is provided with a removable insulating sleeve mounted
upon the base portion of the pin.
Our invention consists in constructing the pin of several parts, all of which are
interchangeable and may be readily replaced, when for any reason they become
broken or otherwise disabled.
It is constructed as follows, reference being had to the accompanying drawings,
in which
Figure 1 is a side view of the pin complete, mounted upon a cross arm and
showing in dotted lines a shank or bolt which secures the parts together and to the
cross arm.
Figure 2 is a vertical section thereof.
Figure 3 is a view of the insulating sleeve.
Figure 4 is a view of the base.
Figure 5 is a vertical section of the base.
Figure 6 is a side view of the pin, showing a base having laterally extending arms
by which it is secured to the cross arm.
Figure 7 is a top plan view thereof.
Figure 8 is a view of a base, similar to that shown in Figure 6, and provided
with a screw in its upper end by which the insulating cap is secured thereto.
A is an insulator pin comprising a base 1 constructed substantially as shown,
preferably having its lower ends enlarged and bell shaped, as shown at a and
provided with a vertical central opening 2 as shown in Figure 2, having an aperture 3
through which the bolt 4 passes.
The upper end of the base may be corrugated, roughened or otherwise provided
with barbs 5 adapted to imbed themselves into the lower edge of the removable
sleeve 6 to prevent it from rotation.
The sleeve 6 may be threaded as shown at b or corrugated or channelled
vertically, for the purpose of securing the insulating cap thereon, but it is
preferably provided with a recess c at its upper end, adapted to allow the head of
the bolt to drop below the upper surface to avoid contact with the insulator pin.
We do not limit ourselves to the bell-shaped base 1, as it will be evident that
the same functions may be performed by constructing the base straight, though not
as well, for the reason that no lateral support will be afforded.
It will also be observed that the lower end of the base may be enlarged so as to
afford a lateral support as by constructing or securing thereon a metal collar.
Neither do we limit ourselves to this precise method of securing the parts
together, as the base may be constructed as shown in Figure 8, having lateral
and downwardly projecting arms 7 by which it is secured to the cross arm and may
also have upwardly extending threaded shank 9 by which the insulating cap is
secured.

page_text: Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. An insulator pin comprising a base having a central opening, an insulating
sleeve mounted thereon, and a bolt for securing them together and to the cross
arm, as set forth.
2. An insulating pin comprising a hollow base, and a threaded or corrugated
insulating sleeve mounted thereon, and a bolt for securing them together and to the
cross arm.
3. An insulator pin comprising a base, enlarged in size at its lower end and
having a central opening, an insulating sleeve mounted thereon and means for
securing them together and to the cross arm.
4. An insulator pin comprising a hollow base, having a central opening, its
upper end roughened and a sliding sleeve mounted thereon, and having recesses
in its upper end and a bolt for securing them together and to the cross arm, as set
forth.
5. An insulator pin comprising a base having a lateral supports, adapted to be
secured to the cross arm a sleeve mounted thereon, and a bolt passing through it
and secured in the base, as set forth.
6. An insulator pin comprising a base having an upwardly extending threaded
shank, a sleeve adapted to be mounted upon said base and secured by means of said
threaded shank.
Dated this 27th day of March 1893.
MARKS & CLERK,
13, Temple Street, Birmingham, Agents for the Applicants.