Improvements in Insulator Brackets for Electric Conductors.
Year: 1898

page_text: Date of Application, 8th Dec., 1898
Complete Specification Left 8th Sept. 1890 Annented 21st Ant
4000
Improvements in Insulator Brackets for Electric Conductors.
I, CARL PELLENZ, of 27c Andreaskloster, Cologne-on-Rhine, Germany, do
hereby declare the nature of this invention to be as follows:-
-
My invention relates to insulator brackets for electric conductors whereby
certain advantages are obtained.
In my invention I make use of rods or tubes, connected with each other by
fitting or adjusting pieces, which permit of any desired number of insulators
being arranged in any desired direction, without the necessity of providing special
holes for the said insulators.
Having stated the main object of my invention, I will now give examples of
the way in which it may be carried out.
Referring to the accompanying drawings.
Figure illustrates the method of connecting a fitting piece and clasps with
the rods.
Figure 2 is the corresponding side elevation.
Figure 3 is the corresponding plan.
Figure 4 represents the arrangement of an insulator on a fitting piece.
Figure 5 shows the method of connecting the fitting-piece and the clasps with
the tubes.
Figure 6 is the corresponding side elevation.
Figure 7 is the corresponding plan.
Figures 8 and 9 show the method of fixing insulator brackets on levers.
Figures 10 to 13 illustrate various methods of employing insulator brackets
formed of rods.
Figure 14 shows an insulator bracket constructed of tubes.
Between the four rods a b c b (Figures 1, 2, 3,) or the four tubes a b c d
(Figures 5, 6, 7,) a cross shaped fitting piece P is inserted, which may consist of
tempered cast metal, cast iron or the like. The iron rods or tubes are externally
embraced by the two clasps e, which are, like the fitting piece, provided with
an internal hole. Through this hole the screw bolt f is then passed. When
the nut is tightened, the rods a b c d or the tubes a b c d become firmly
and rigidly connected by the fitting piece P, and the two clasps e.
The fixing of an insulator is effected in a similar manner (Figure 4). Instead
of the screw bolt, the screw threaded end of the insulator holder h is passed
through the hole and is then held in position by a nut g. In this case the insulator
bracket is supposed to be formed of four rods.
If the different fitting pieces are arranged in the same insulator bracket so that
they are placed vertically one above another, the insulators may be set at right
angles to one another.
By use of similar clasps and fitting pieces my invention enables insulator
brackets to be very simply fixed to levers such as those shown at i, Figures 8
and 9. In this case an insulator bracket constructed of tubes is supposed to be
emploved.

page_text: Other examples of the way in which my invention may be carried into effect
are shown in Figures 10 to 13.
The wall brackets, arms or levers may be connected to the rods or tubes by
similar fitting pieces and clasps, and thus not only hold the insulator bracket
but also keep its constituent rods or tubes together.
In carrying out my invention the insulator bracket may be arranged either
vertically as in Figures 10 and 11, or horizontally as in Figure 12, or obliquely
as in Figure 13, but the insulators themselves need not necessarily be set in
similar relative positions, since they are independent of the position occupied by
the bracket.
In the case of insulator brackets constructed of tubes I may make use of the
tubes to carry the conductors. The conducting wire is inserted below and passes
out through a hole arranged at a certain height above the respective insulators.
In order to reinforce the weakened place of the tube, a T-shaped socket may be
used which may also carry a short bent tubular piece, as shown in Figure 14.
For those conductors passing to the top-most insulators the ends of the tubes
themselves may be bent, so that the wire can be conveniently passed to the
insulator, thus preventing moisture from finding its way through the tubes into
the interior of the building.
An insulator bracket constructed as described above can be very easily taken
to pieces and remounted; no holes need be bored nor any other difficult operations
be executed for mounting the same. The same may, moreover, be constructed in
any desired length. The operations of exchanging the insulators or of arranging
new ones can likewise be very easily executed.
The rigidity of this improved insulator bracket may be considerable without
the use of very thick tubes since the cross sectional distribution of the surface
is such, that the said surfaces are some distance from the neutral axis, thus
giving a large moment of resistance to deformation.
Dated this 8th day of December 1808
improvements in insulator brackets for Electric Conductors.
I, CARL PELLENZ, of 27c Andreaskloster, Cologne-on-Rhine, Germany, 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:
--
My invention relates to insulator brackets for electric conductors whereby
certain advantages are obtained.
In my invention I make use of rods or tubes, connected with each other by
fitting or adjusting pieces, which permit of any desired number of insulators
being arranged in any desired direction, without the necessity of providing special
holes for the said insulators.
Having stated the main object of my invention, I will now give examples of
the way in which it may be carried out.
Referring to the drawings left with the Provisional Specification,
Figure 1 illustrates the method of connecting a fitting piece and clasps with
the rods.

page_text: 2
the corresponding side elevation.
Figure 3 is the corresponding plan.
Figure 4 represents the arrangement of an insulator on a fitting piece.
Figure 5 shows the method of connecting the fitting-piece and the clasps with
the tubes.
Figure 6 is the corresponding side elevation.
Figure 7 is the corresponding plan.
Figures 8 and 9 show the method of fixing insulator brackets on levers.
Figures 10 to 13 illustrate various methods of employing insulator brackets
formed of rods.
Figure 14 shows an insulator bracket constructed of tubes.
Between the four rods a b c d (Figures 1, 2, 3,) or the four tubes a bol di
(Figures 5, 6, 7,) a cross shaped fitting piece P is inserted, which may consist of
tempered cast metal, cast iron or the like. The iron rods or tubes are externally
embraced by the two clasps e, which are, like the fitting piece, provided with
an external hole. Through this hole the screw bolt f is then passed. When
the nut g is tightened, the rods a b c d or the tubes a b c d become firmly
and rigidly connected by the fitting piece P, and the two clasps e.
The fixing of an insulator is effected in a similar manner (Figure 4). Instead
of the screw bolt, the screw threaded end of the insulator holder his passed
through the hole and is then held in position by a nut g. In this case the insulator
bracket is supposed to be formed of four rods.
If the different fitting pieces are arranged in the same insulator bracket so that
they are placed vertically one above another, the insulators may be set at right
angles to one another.
By use of similar clasps and fitting pieces my invention enables insulator
brackets to be very simply fixed to levers such as those shown at i, Figures 8
and 9. In this case an insulator bracket constructed of tubes is supposed to be
employed.
Other examples of the way in which my invention may be carried into effect
are shown in Figures 10 to 13.
The wall brackets, arms or levers may be connected to the rods or tubes by
similar fitting pieces and clasps, and thus not only hold the insulator bracket
but also keep its constituent rods or tubes together.
In carrying out my invention the insulator bracket may be arranged either
vertically as in Figures 10 and 11, or horizontally as in Figure 12, or obliquely
as in Figure 13, but the insulators themselves need not necessarily be set in
similar relative positions, since they are independent of the position occupied by
the bracket.
In the case of insulator brackets constructed of tubes I may make use of the
tubes to carry the conductors. The conducting wire is inserted below and passes
out through a hole arranged at a certain height above the respective insulators.
In order to reinforce the weakened place of the tube, a T-shaped socket may be
used which may also carry a short bent tubular piece, as shown in Figure 14.
For those conductors passing to the top-most insulators the ends of the tubes
themselves may be bent, so that the wire can be conveniently passed to the
insulator, thus preventing moisture from finding its way through the tubes into
the interior of the building.
An insulator bracket constructed as described above can be very easily taken
to pieces and remounted; no holes need be bored nor any other difficult operations
be executed for mounting the same. The same may, however, be constructed in
any desired length. The operations of exchanging the insulators or of arranging
new ones can likewise be very easily executed.
The rigidity of this improved insulator bracket may be considerable without
the use of very thick tubes since the cross sectional distribution of the surface
is such, that the said surfaces are some distance from the neutral axis, thus
giving a large amount of resistance to deformation.

page_text: Having now particularly described and ascertained the nature of my said
invention, and in what mauner the same is to be performed, I declare that what
I claim is:-
1. In an insulator bracket the combination of four metal rods, fitting piece for
insertion between said rods, clasps and means, such as a bolt and nut, for con-
necting said parts together substantially as and for the purpose set forth.
2. In a combination as specified in Claim 1, the employment, instead of the
metal rods, of tubes for the purpose of containing conductors substantially as
set forth.