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Патент USA US3092275

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June 4, 1963
3,92,265
B. DA VALLE
POLE GRIPPING MECHANISM
Filed Feb. 15. 1960
3 Sheets-Sheet 1
.
INVENTOR.
"
BRUNO DaWILLE
B
ATTORNEYS
June 4, 1963
B. DA VALLE
3,092,265
POLE GRIPPING MECHANISM
Filed Feb. 15, 1960
3 Sheets-Sheet 2
INVENTOR.
BRUNO
BY
DQVALLE
£544“!
ATTORNEYS
June 4, 1963
B. DA VALLE
3,092,265
POLE GRIPPING MECHANISM
Filed Feb. 15, 1960
3 Sheets-Sheet 3
INVEN TOR.
BRUNO Da‘l44L LE
BY
466,,‘ 4-~(
A TTOFPNEV
United States Patent 0 ” ice
1
I
$992,265
PQLE GRIi’PlNG MECHANiSh/l
Bruno Da Valle, 85 Tully Road, Los Gatos, Qal?.
Filed Feb. 15, 196i), Ser. No. 8,541
4 Claims. (Cl. 214—3}
This invention relates to an improved pole clip or grip
ping mechanism for use on pole erecting machines such
as are employed for erecting the poles of utility lines.
An object of this invention is to provide an improved
pole clip adapted for use on utility pole erecting machines
to facilitate the e?icient handling of the poles.
Another object of this invention is to provide an im
amazes?
Patented June 4, ‘1963
'2
'14 forms a bearing for the rod 15 and in addition a pair
of bearings 18 are attached to the lower part of the boom
12 by welding and the like as shown in FIGS. 1 and 2.
The arm 2%? is provided with three holes Zita positioned
around the aperture which receives the actuating rod 15
to which the arm 25 is attached. These holes 2tla are
adapted to receive the end of a latch rod 21 which is sup
ported by the arm 21a. A spring 211) is provided for
urging the latch rod upward into latching engagement
with the holes Zlla of the member 2i]. A wire member 19
is attached to the lower end of the latching rod 21 for
pulling this rod downward against the action of the spring
21b whereby the rod 21 may be withdrawn out of the en
proved pole clip adapted forum on utility pole erecting
gaged hole 29a. The latching rod '21 is provided for lock
machines for gripping and handling poles of a wide range 15 ing the arm 26 in any one of three positions as de?ned by
the holes Zilc which it may assume between the stops 16
of di?erent sizes.
Another object of ‘this invention is to provide an im
and 17.
The jaws 22 and 23 of the pole gripping mechanism
proved pole clip that is equipped with means whereby it
are preferably of substantially circular cross-section so
willeiiiciently grip poles of a wide range of sizes and at
the 'same time permit such poles to slide therethrough 20 that they do not present sharp edges to the pole gripped
therebetween so that the pole may be slid into the pole
during the setting thereof into the pole holes.
hole without snagging. These jaws 22 and 23 are sup
Other and further objects of this invention will be ap
parent to those skilled in the art to which it relates from
the following speci?cation, claims and drawing.
ported on the cross member 2%, which is attached to
the outer end of the arm 29, by means of the bolts 24 and
In accordance with this invention there is provided an 25 25', respectively. The bolts 24 and 25 are positioned in
holes formed in the cross member 20b and they extend
improved pole clip that is adapted to be used on machines
up through suitable holes normed in the bridge member
employed for erecting utility poles, such as are used in
26 which is positioned over the jaws 22 and 23 substan
telephone, electric, and similar lines in which poles of
tially parallel to the cross member 2812. The ends of the
substantial and often varying sizes are used. The pole
clip of this invention is adapted to grip poles of a wide 30 bridge member 25 are provided with depending portions
26a and 2512. These depending portions 26a and Zeb are
range of sizes with equal efliciency. For this purpose this
provided with holes for receiving the bolts 28 and 29
pole clip is provided with a pair of pivotally mounted
‘respectively. The bolt 28 extends ‘between the depending
and spring biased jaws that are supported on an arm
member 260 and the end 22a of the jaw 22 ‘which is pro
which is positioned at the top end of the boom of the
pole setting machine. An elongated member is also posi 35 vided with a suitable hole for receiving this bolt. Like
wise the bolt 29 extends between the member 26b and
tioned alongside of this boom and the top end of this
elongated member is attached to the jaw supporting arm
the end 23a of the jaw 23 which is also provided with
so that the jaws and this arm may be rotated through a
a bolt receiving hole.
Suitable springs 30 and 31 are
predetermined angle with respect to the boom.
coiled around the body portions of the bolts 23 and 29
Other and further features of this invention will be set 40 respectively. Thus the spring ‘30 is positioned between
the member 26a and the end 22a of the jaw 22 for exert
forth in the speci?cationyclaims and drawing in which,
brie?y:
ing spring tension on this jaw tending to close it against
the side of a small sized pole A or a large sized pole B.
FIG. 1 is a rear elevational view of the pole setting
Similarly the spring 31 is positioned on the bolt 29 be
truck equipped with a pole handling boom;
FIG. 2 is a side view taken along the line 2-2 of
tween the member 26b and the end 23a of the jaw 23
and this spring provides spring tension for urging the jaw
FIG. 1;
FIG. 3 is a detail plan view of the pole gripping mecha
23 against an opposite side of a small sized pole A or a
large sized pole ‘B. It will also be seen from FIG. 3
nism positioned at the top of the boom;
FIG. 4 is a side view of the mechanism shown in
of the drawing that the jaws 22 and 23 are of gradually
curved shape whereby they ‘are adapted to receive a wide
FIG. 3;
FIG. 5 is a sectional view taken along the line 5—5 of
range of sizes of utility poles therebetween.
When a pole is to be placed in the pole gripping mech
FIG. 4; and
FIG. 6 is a perspective view of this device with a pole
in gripping position.
Referring to the drawing in detail there is shown in
anism some of the cable ‘59 is unwound from the winch
Siib so that the hook ‘5-912 is lowered and the cable may
be wrapped around the pole 50c which is lying on the
FIG. 1 a view of a track equipped with a pole setting
vground ‘with one end thereof near the hole into which
boom 12 which is made of telescoping sections and is at
it is to ‘be placed.
tached to the top of the tiltable housing 11 of conven
The upper end of the boom is provided with a sheave
tional construction. The top end of the pole or boom 12
53 that is 'rotatably supported by the ‘bolt 1412. This
is provided with ‘a socket 145: to which the plate 14 is at as sheave is positioned in a suitable recess cut into the top
tached by welding or similar processes and this socket is
of the boom which is aligned with a cut-away part of
attached to the top of the pole by the bolt ‘14b. The pole
the socket member 14a. Sides of the sheave 53 extend
‘gripping mechanism 13 shown in detail in FIGS. 3, 4 and
out of this recess into the space between the vertical
plates 51 and 52 on 'one side of the boom and into the
5 is attached to the top end of the rod 15 which is posi
tioned in a suitable hole formed in the plate 14 and pro 65 ‘space between the substantially vertically disposed rollers
54 and 55 which are held between the plates 56 and 57
jects above this plate into the arm 29 to which the pole
by the bolts 58 and 59 respectively. The plate 56 is at
gripping jaws 22 and 23 are pivotally attached. The
pole gripping mechanism 13 may be rotated, between the
stops 16 and 17 that are positioned on the plate 14, by
manipulating the handle 16 that is attached to the lower
plate 57 is attached to the tops of the wedge shaped mem
portion of the rod 15, whereby the pole gripping mecha
nism may be oriented to the desired position. The plate
sides of the sheave recess.
The cable 5% is inserted between the rollers 54 and
tached to the boom below the sheave recess and the
bers 57a and 57b which are welded to the boom along
3,092,265
3
4.
55 which are rotatably supported on the boom as de
scribed above, and thereafter the cable passes over the
sheave '53 and then between the plates 51 and 52 down—
formed in the ground, the combination of a boom
mounted on a pole handling machine employed for set
ward to the winch 50b. Thus when the cable is wrapped
around a pole as shown in FIG. 6 the pole maybe
pole guiding apparatus mounted at the top end of said ‘
boom, a sheave also mounted at the top end of said boom
for receiving a rope which is adapted to be tied to a pole
raised by the winch 5022. During the raising of the pole
the cable may engage the guide rollers 54 and 55 which
guide the cable to the sheave so that it tracks properly
thereon. When the pole is raised up to the boom the
pole gripping machanism 13 is rotated if necessary to line
the jaws 22 and 23 up with the pole so that the upper
part of the pole may be inserted between the jaws 22 and
23 by pulling further on the cable 50 so as to force the
ting poles of large size such as used in public utility lines,
for raising the pole to said pole guiding apparatus and
for lowering said pole into the ground during the setting
of said pole, said pole guiding apparatus comprising a
plate, means for adjustably attaching said plate to the
top end of said boom of the pole handling machine, a
pair of elongated jaws each having oval shape whereby
said jaws are adapted for slidably receiving poles there
pole between the jaws through the open side thereof.
between having a wide range of diameters, the pole en
Suitable balls 36 and 37 are provided in the jaws 22 and 15 gaging portions of said jaws being of arcuate con?gura
23 respectively to reduce the friction between the pole
tion, friction reducing means attached to the forward
being forced into the open side of the jaws. The pole
end portions of said jaws to facilitate sliding the pole‘
gripping mechanism 13 should be rotated and positioned
between said jaws, pivot means for pivotally attaching
said jaws to said plate so that the pole engaging portions
jaws during the erecting operation. The pole gripping 20 of said jaws extend laterally from said boom whereby
mechanism is held at this angle by the latch rod 21.
said jaws'are adapted to receive said pole therebetween
Balls 38 and 39, which are similar to balls 36' and 37,
when said boom is in substantially erect position, the free
are provided near the inner ends of the pole gripping sec
end portions of said jaws being divergent to receive the
tions of the jaws 22 and 23 respectively. The purpose of
pole therebetween, and spring means for said jaws for
these ‘balls 38 and 39 is to reduce the friction ‘between
urging the pole engaging portions of said jaws toward
the jaws and the pole when the pole is being lowered into
each other into engagement with the pole positioned
the hole formed in the ground preparatory to setting the
therebetween, said pole being adapted to slide between
pole.
said jaws as said pole is guided thereby while it is lowered
The balls 36, 37, 38 and 39 are mounted in suitable
into said hole by said cable.
sockets 40, '41, 42 and 43 respectively, which are attached 30
3. In pole guiding apparatus for use with poles having
to the jaws by welding. These devices may be made in
a wide range of sizes in the setting of. such poles in holes
at an angle such that the pole does not slip out of the
the same way as conventional ball casters are made and.
formed in the ground, the combination of a boom
each may be provided with a series of small ball bear
mounted on a pole handling machine employed for set
ings positioned in the socket behind the ball and in en
ting poles of large size such as used in public utility lines,
gagement therewith to reduce friction and permit easy 35 pole guiding apparatus mounted at the top end of said
rotation of the ball.
~
boom, a sheave also mounted at the top end of said.
While I have shown a preferred embodiment of the
boom for receiving a rope which is adapted to be tied to
invention it will be understood that the invention is capa
a pole for raising the pole to said pole guiding apparatus
ble of variation and modi?cation from the form shown
and for lowering said pole into the ground during the
so that its scope should be limited only by the scope of 40 setting of said pole, said pole guiding apparatus compris
the claims appended hereto.
ing a plate attached to the top end of said boom of the
What I claim is:
j
.
pole handling machine so that said plate extends later
ally from said boom, a pair of elongated jaws each hav
a wide range of sizes in the setting of such poles in holes
ing oval, shape, friction reducing means attached to the
formed in the ground, the combination of a boom
forward end portions of said jaw to facilitate sliding the
mounted on a pole handling machine employed for set 45 pole between said jaws, said jaws being adapted to open
ting polcs of large size such as used in public utility lines,
slidably receiving poles therebetween having a wide range
pole guiding apparatus mounted at the top end of said
of diameter, a bridge member attached to said plate, said
boom, a sheave also mounted at the top end of said
jaws being positioned between said bridge member and
1. In pole guiding apparatus for use with poles having
boom for receiving a rope which is adapted to be tied
to a pole for raising said pole to the pole guiding ap
said plate, pivot means passing throughsaid bridge, said
by said jaws are adapted to receive said pole therebe
poles of large size such as used in public utility lines,
jaws and said arm for pivotally attaching said vjaws to
paratus and for lowering said pole into the ground dur
said plate so that said jaws extend laterally from said
ing the setting of said pole, said pole guiding apparatus
boom whereby said jaws are adapted to receive said pole
comprising a plate ‘fastened to the top end of the boom
therebetween when said boom is in substantially erect
of the pole handling machine, an arm extending from 55 position, spring means engaging said jaws adjacent to
' said plate, means for rotatably supporting said arm com~
said pivot means for urging the pole engaging portions of
prising an elongated member attached to said arm and
said jaws toward each other into engagement with said
‘extending therefrom through said plate for pivotally
pole, and friction reducing means positioned on said jaws
supporting said arm with respect to said plate, said elon
to engage said pole and facilitate sliding of said pole be
gated member extending toward the bottom end of said 60 tween said jaws as said pole is guided thereby while it is
boom for manual rotation of said arm when said boom
lowered into said hole by said cable.
is in a vertical position, a pair of jaws for slidably re
4. In pole guiding apparatus for use with poles having
ceiving a pole therebetween, pivot means for pivotally
a wide range of sizes in the setting of such poles in holes
attaching said jaws to the free end portion of said arm
formed’ in the ground, the combination of a boom
so that said jaws extend laterally from said boom where 65 mounted on a pole handling machine employed for setting
tween wheh the boom is in substantially erect position,
and spring means engaging said jaws adjacent to said
' pivot mean for urging the pole engaging portions of said
pole guiding apparatus mounted at the top end of said
boom, a sheave also mounted at the top end of said
boom for receiving a rope which is adapted to be tied
jaws toward each other into engagement with said pole, 70 to a pole for raising the pole to said pole guiding ap
said pole being adapted to slide between said jaws as said
paratus and for lowering the bottom end of said pole into
pole is guided thereby while it is lowered into said hole
by said cable.
>
the ground during the setting of said pole, sad pole guidé
ing apparatus comprising a pair of jaws for slidably en
2. In pole guiding apparatus for use with pol-es having
gaging a pole therebetween, means for pivotally support
a wide range of sizes in the setting of such poles in holes 75 ing said jaws on the top end of said boom so that said
3,092,265
5
jaws extend laterally from the top end of said boom,
said jaws each having elongated oval shape whereby
said jaws are adapted to receive therebetween poles hav
ing a wide range of diameters, each of said jaws having
a socket at the forward end thereof, each of said jaws
also having a socket near the inner end thereof, friction
reducing means positioned in said sockets and extending
out of said sockets a short distance such that said fric
tion reducing means at the vforward ends of said jaws
engages the pole as said pole is being moved between said
jaws and said friction reducing means near the inner ends
6
References Cited in the ?le of this patent
UNITED STATES PATENTS
731,079
1,201,001
2,249,907
2,470,983
2,535,464
2,691,451
2,701,649
2,814,396
Steiner _____________ __ June 16,
Thomas _____________ __ Oct. 10,
133,147
Switzerland _________ __ Sept. 16,
of said jaws engage said pole as said pole slides between
stantially erect position.
Tisdale _____________ __ Dec. 26,
Westfall ____________ __ Oct. 12,
Hallstrom ____________ .._ Feb. 8,
Neale ______________ __ Nov. 26,
1954
1955
1957
FOREIGN PATENTS
said jaws during the lowering of said pole into the hole
in the ground with said cable when said boom is in sub
Perkowski __________ __ July 22,
Hendricks __________ __ May 24,
1903
1916
1941
1949
1950
1929
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