Insulator Support for Line Wires Page: 2 of 3
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UNITED STATESPATENT OFFICE.
HENRY L. HOYBOOK, OF TYLER, TEXAS.
INSULATOR-SUPPORT FOR LINE-WIRES.Specification of Letters Patent. Patented Dec. 10,1912.
Application filed March 14, 1912. Serial No. 683,786.To all whomtit may concern:
Be it known that I, HENRY L. HOYBOOK, a
citizen of the United States, residing .at
Tyler, in the county of Smith and State of
6 Texas, have invented a new and useful In-
sulator-Support for Line-Wires, of which
the following is a specification.
. The present invention relates to improve-
ments in insulator supports for line wires,
i* the primary object of the invention being
the provision of a novel form of support
that is readily attachable to the usual cross
arms used upon telephone and telegraph
poles or upon. the novel form of circular
,6 insulator support as set forth in the appli-
cation for patent filed and wherein a sep-
arable insulator is properly supported with-
in a protecting, preferably metallic, casing,
so that the line wire may be readily placed
20 in position and permitted the usual longi-
tudinal movement due to contraction and
expansion, and at the same time be so sup-
ported that no sidewise movement is per-
mitted.
26 A further object of the present invention
is the provision of a main carrying plate
which may be readily attached to the usual
wire supporting arms and having pivotally
connected thereto an insulator retaining
30 plate, the insulator being a special insulator
disposed to receive the line wire therebe-
tween and itself co-acting with the support-
ing plate and casing to be retained in the
same against longitudinal movement.
85 With the foregoing and other objects in
view which will appear as the description
proceeds, the invention resides in the com-
bination and arrangement of parts and in
the details of construction hereinafter de-
40 scribed and claimed, it being understood
that changes in the precise embodiment of
the invention herein disclosed can be made
within the scope of what is claimed without
departing from the spirit of the invention.
45 In the drawings-Figure 1 is a perspec-
tive view, of the complete insulator and sup-
port. Fig. 2 is a longitudinal sectional view
of a support and insulator showing the line
wire in position. Fig. 3 is a section taken
50 on line 3-3 of Fig. 2. Fig. 4 is a per-
spective view of one of the insulator mem-
bers per se.
Referring to the drawings, the numeral 1
designates the supporting portion of the
55 main support which is made L-shaped in side
elevation and carries the platform 2, which isprovided with the central aperture 3, the
purpose of which will presently appear.
The insulator casing 4 is made of a sin-
gle sheet of metal and is bent to form the 60
oppositely extending wings 5 and 6 which
rest upon the upper surface of the plate 2
and provide the insulator receptacle, which
is open at two ends and is provided with the
aperture 8 which is disposed above and in 65'
alinement with the aperture 3 of the plate 2.
By means of the rivet or other fastening
means 9, the wing 5 is secured to the plate
2 so as to permit the casing movement rela-
tively to the plate $, and as the metal of 70
the casing 4 is flexible, the same may be
bent backward so as to permit of the inser-
tion of the insulation sections 12 and 13 as
will presently appear. In order to lock the
wing 6 and consequently the casing 4 in rela- 75
tive position to the support, a bolt 10 and
nut 11 is provided.
The insulator as before stated comprises
two identical members 12 and 13, each one
of which is provided with the longitudinal 80
recess 14 for the reception of the line wire
15,. these sections being further provided
with the cylindrical lugs or studs 16 which
when the device is assembled projects within
the respective apertuires 3 and 8 and thereby 85
retain the members 12 and 13 against longi-
tudinal movement while the lugs 16 are also
retained within the casing 7 in the position
as shown. To further assist in the position-
ing of the insulator sections, the indenta- 9o
tions 17 are formed upon the edges thereof
as shown in Fig..4 and the casing 4 may be
correspondingly shaped to receive the same
so as to provide an additional or auxiliary
means to the studs 16. ; 95
From the foregoing description, taken in
connection with the drawings, it is evident
that the insulator sections 12 and 13 when
in line wire supporting position are prop-
erly held against longitudinal movement 100
and as such sections are normally spaced-
apart as at a, various sized line wires may
be readily accommodated and held properly
in position, and when in such position the
longitudinal contraction and expansion of 105
the line' wire 15 is readily provided for.
What is claimed is:
An insulator and support, comprising a
bracket carrying a plate with an aperture
therethrough, an insulator embracing mem- 110
ber pivotally mounted upon the plate for
lateral swinging movement, said embracing1,047,059.
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Hoybook, Henry L. Insulator Support for Line Wires, patent, December 10, 1912; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth509569/m1/2/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.