UNITED STATES PATENT OFFICE
ROBERT D. DWYER, OF RICHMOND, VIRGINIA.
IMPROVEMENT IN ATTACHMENTS FOR LIGHTNING-RODS.
Specification forming part of Letters Patent No. 13,162, dated July 3, 1855.
To all whom it may concern: Be
it known that I, ROBERT D. DWYER,
of Richmond, in the county of Henrico and State of Virginia, have
invented a new and useful Improvement in Lightning-rod Supporters; and I
do hereby declare that the following is a full and exact description
thereof, reference being had to the accompanying drawings, making a part
of this specification. The
nature of my invention consists in constructing a lightning-rod holder
of only two pieces, of such a form that the rod itself will combine the
said pieces with each other at the same time that the said rod by so
doing is securely held and sustained by the said pieces when one of them
is secured to some portion of a building or is otherwise suitably
sustained. In
the accompanying drawings, Figure 1 is an elevation of my improved
rod-supporter; and Figs. 2 and 3 are sections of the same representing
the respective parts thereof as being combined with each other by a
piece of a rod. The
portion A of my improved supporter may he made of glass or other
suitable material. The base of the said portion A may be given such a
shape as to in make it most convenient to secure it to a wall, roof, or
other sustainer. The head of A has shoulders c c projecting from
opposite sides thereof and a transverse notch, d, is formed in
the face of said head, which descends into the said shoulders and is
enough larger than the rod which is to pass into said notch to allow it
free play therein. The other portion of my improved lightning-rod holder is composed of the sides e e and the |
connecting-bar
f. The said sides e e have square holes g g placed
opposite each other, and at their lower extremities inwardly projecting
shoulders i i are formed, which shoulders are such a distance
from each other that they can be passed freely under the shoulders c
c (which project from the sides of the head of A) into the position
shown in Fig. 3,in which position the holes g g in the said sides
e e will be opposite the notch or groove d in the face of
the head of A, which will allow the rod k to be passed through the said
holes g g and the notch d, and when placed in said
position the respective parts of the rod-holder will be securely
fastened to each other and the said rod be securely fastened to them. The
size of the respective parts of my improved lightning-rod holder are so
proportioned to each other and to the size of the rod which they are to
be combined with that the high temperature imparted to the rod by the
electric fluid and the consequent expansion of the rod will not produce
any injury. What
I claim as my invention, and desire to secure by Letters Patent, is-- Constructing
a lightning-rod holder of but two parts, of such a form that the
lightning-rod will connect them to each other at the same time that it
combines itself securely with them, substantially as represented by the
accompanying drawings and herein set forth.
R. D. DWYER. Witnesses:
JAMES EVANS,
I. A. AUGHINBAUGH.
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