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Патент USA US3064834

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Nov. 20, 1962
H. M. BEATTY
3,064,324
TRIP GIN POLE
Filed Jan. 2, 1959
I
'
2 Sheets-Sheet 1
Nov. 20, 1962
H. M. BEATTY
3,064,824
TRIP GIN POLE
Filed Jan. 2, 1959
2 Sheets-Sheet 2
I WW" W
I
INVENTOR
//,9>ev£ xv. 55/7775’,
W
ATTORNEY5
3,%4,8Z4
Patented Nov. 20, 1962
2
3,964,324
TRTP GllN PULE
Harve M. Beatty, 405 Central Ave., Clinton, Tenn.
Filed Jan. 2, 1959, Ser. No. ‘784,729
14» Claims. (Cl. 212-61)
This invention relates to improvements in trip gin poles,
and more particularly to the mounting thereof on power
line poles for performing heavy rigging, such as installing
cross arms and ?xtures, holding transmission lines, etc.
Various attempts have been made heretofore to pro
vide for the attachment of gin poles and other hoisting
provisions on power line poles, but these have not been
satisfactory for universal application, for secure fastening
to the power line poles or for‘ proper adjustment of the
gin poles with respect thereto.
One object of this invention is to overcome the objec
tions encountered heretofore in devices of this character
and to improve the construction thereof.
just inside the respective back plates 4 and 5 and extend
ing transversely between the interconnected webs 6.
The back plate 5 is adapted to be placed against the
cylindrical surface of the power line pole 1 and this plate
5 has an ear 9 at its upper edge, perforated to receive a
lag screw or nail 10 that is initially inserted into a side
of the pole lias a temporary support for the base struc
ture or footing on the side of the pole.
The upper and lower edges of the back plate 5 is pro
10 vided also with backturned flanges 11 thereon, which are
notched out, as indicated at 12, so as to conform sub
stantially to the convex periphery of the power line pole
1. Ribs 13 extend between the upper and lower edge
?anges 11 at opposite ends of the notched portions 12
coacting therewith to form a concave seat for the power
line pole. Additional embracing arms are shown at 14,
which may be used if desired, and may be formed either
in rigid relation to the ribs 13 or hinged thereto so as
to conform readily to various contours of the power line
Another object of the invention is to provide for at 20 pole.
This base structure or pole footing, generally indicated
tachment, securely and effectively, of a base or mounting
at 3, should be secured rigidly to the side of the power
structure on a power line pole for supporting a gin pole
line pole 1 by detachable fastening means. I have shown
or arm in desired adjusted positions with respect thereto.
and prefer to use, for this purpose, slings generally indi
Still another object of the invention is to provide a
cated at 15, one of which is illustrated at each of the
footing or base that may be attached and secured readily
upper and lower ends of the footing 3. Each sling 15
to a power line pole for receiving and supporting an arm
is formed of a length of chain 16 having means, such
mounting, which latter has the supporting arm adjustably
as a detachable hook 17, intermediate the length thereof
connected therewith for swinging movement to different
for taking up the chain, so that it will conform generally
positions, according to the object to be supported thereby.
to the circumference of the power line pole. At its oppo
These objects may be accomplished, according to cer
site ends, each length of chain 16 is provided with lash
tain embodiments of the invention, by providing a base
ing screws 18 that are threaded to receive nuts 19 for
structure or footing which is capable of secure attach
anchoring the lashing screws to the footing 3. The plates
ment to a side of a power line pole. An arm footing is
4- and 5 are provided with openings 20 therein, through
detachably and adjustably connected with the base mem
ber or pole footing, and the arm footing, in turn, re 35 which the adjacent ends of the slings 15 extend, with
the lashing screws 18 protruding through the openings
ceived and adjustably mounts the base portion of the
26 in the plate 4 and receiving the nuts 19 on the ends
gin pole arm, capable of adjustment with respect thereto.
of the screws in bearing relation against the outer face
This embodiment is illustrated in the accompanying
of the plate 4. Thus, upon tightening of the nuts, the
drawings, in which:
PEG. 1 is a side elevation of the gin pole structure 40 slings 15 can be secured rigidly around the power line
pole.
applied to a power line pole;
Supported upon the pole footing 3 is an arm footing,
FIG. 2 is a similar view at right angles thereto;
generally indicated at 21. The arm footing 21 comprises
FIG. 3 is a detail side elevation, showing the base of
a U-shaped saddle 22 adapted to receive therein the base
the gin pole arm and one form of arm ?tting;
P26. 4 is a disassembled perspective view of those 45 of the arm of the gin pole. The footing is adapted to
be mounted on the pole footing 3 in any suitable or
same parts, but with a modi?ed form of arm footing;
desired manner and preferably is detachable and adjust—
FIG. 5 is a disassembled perspective view of the base
able with respect thereto. In the form shown in FIG. 3,
structure or pole footing and its connected parts;
the arm footing 21 is provided with a cylindrical de
FIG. 6 is .a similar view from the opposite side;
FIG. 7 is a cross section through the base of the gin 50 pending section 23 projecting downward from the saddle
22 and of a size and shape to conform substantially to
pole arm, with the guide pulley in one position; and
the cylindrical section 7, to be received therein and to
HG. 8 is a similar view, showing the guide pulley in
another position.
Referring to FIGS. 1 and 2, a power line pole is gen
rotate about an upright axis with respect thereto.
If preferred, the saddle 22 of the arm footing 21 may
erally indicated by the numeral 1, and this pole is usually 55 be provided with a pair of depending side members 23’
provided with one or more cross arms for supporting
spaced apart so as to be inserted into the slots 8 of the
the transmission lines, which cross arms are usually
located at the top thereof. One of these cross arms is
pole footing 3 capable of detachable engagement in the
illustrated in FIG. 4 by the numeral 2, as will be de
scribed more in detail. The gin pole structure is capable
of being secured to the power line pole 1 above or below
the cross arm thereon and may be applied directly to
slots. In this modi?ed form, as shown in FIG. 4, the
arm footing 21 can be removed from the pole footing 3
and applied to one of the cross arms 2, so as to support
the arm from the latter, if desired. Keyhole slots 24
are provided in the side members 23’ in positions to
the cross arm itself in a manner hereinafter to be de
receive locking pins 25 which may be inserted under the
cross arm 2 for anchoring the arm footing 21 thereto.
scribed.
A pole footing or base structure is indicated generally 65 Each of the pins 25 is provided with a knob 26 thereon
which will pass through the corresponding keyhole slots
at 3 in FIGS. 5 and 6, which comprises a box-like hous
ing with front and back plates 4 and 5, separated from
24, after which the pin 25 may be turned so as to lock
each other by connecting webs 6 which are spaced apart
the pin effectively in place against accidental removal.
to form the box-like housing structure. This structure
While the form of arm footing shown in FIG. 3 is
is open at the top and bottom and, in the form illustrated 70 capable of swivelling with respect to the pole footing 3,
in the drawings, it is provided with an upright cylindrical
the form of arm footing 21 shown in FIG. 4 will be
bearing portion 7 having slots 8 on opposite sides thereof
held against swivelling action either on the pole footing
3,064,824.’:
3
footing is capable of removal and detachment, either
ally disposed relation with respect to the cross arm,
rather than as extending outwardly from the power line
from the pole footing 3 or from the cross arm 2 when
pole.
3 or on the cross arm 2. Nevertheless, this form of arm
applied thereto. _..Wh6_n,it is in, place, it will be retained
effectively for supporting the arm of the gin pole.
1? 'This armris mountedina base, generally indicated at
27 and shown in, FIGS. 4, 7 and 8. The basev27 is
formed of a cylindrical section 28 having oppositerend
portionsof a sizevto ?t openings 29 in the‘opposite sides
of the saddle 22, so as to be’ jonrnaled therein. Locking
,
Suitable adjustments may be made of the several parts
as will be evident. The gin pole is capable of wide
latitudes of use and the parts may be applied and used
in di?erent environments, according to-requirements.
The structure is simple and inexpensive to construct,
light in weight and yet sturdy in providing the needed
support orholding actionrequired.
.
.
j
g
.
While the invention has been'illustrated and described
plates 30 bisect the cylindrical section 28 to abut against
in'certain embodiments, it'is recognized that other varia
the outer faces of the opposite sides of the saddle 22,
tions and changes may be made therein without departing
as will be apparent from FIGS. 1 and 2. These opposite
from the invention as set forth in the claims.
sides of the saddle 28, as well as the plates 30, are pro
vided with rows of perforations 31 to receive there 15
l. A trip gin pole comprising a pole footing adapted
through a locking pin 32 so as to lock the arm base in
to be applied to an upright member, means for securing ,
a desired angular position with respect to the arm foot
I
in
21.
1
gExtending axially through the plates 39 and in the
section 23 is a pulley shaft 33 which is capable of axial
sliding movement With respect to the arm base 27. On
one end, the shaft 33 is provided with a pulley 34 jour
naled on the shaft. Interposed between the pulley 34
and the adjacent plate 30 is a coiled compression spring
35, tending to move the shaft 33 toward the left, as
viewed’ in FIGS. 7 and 8. At the opposite end of the
shaft 33 is formed a locking lug 36 spaced inward from
the end of the shaft 33 and from which a cotter pin 37
extends through the end of the shaft. The openings in
the plates 30 are formed as keyhole slots, so as to permit 30
"passage of the lug 36 therethrough and, when properly
aligned with the adjacent keyhole slot in the plate 30,
the lug ‘can move from the position shown in FIG. 7 to ‘
the position shown in FIG. 8, thereby allowing axial
movement of. the shaft 33 with respect to the base section
28, disposing the pulley 34 externally of this base section,
. or con?ning'it within the base section, as shown in FIG.
7,' if the userof a pulley is not required. '
Bisecting the base section 28 on the base 27 is a socket
member 38 in position to receive therein the arm 39 of
the gin pole, which arm is of su?icient length to support
the parts and'suspension cable in desired positions. The
outerend of the arm 39 has a'suitable ?tting 40 mounted
thereon and from which the cables and taclde, generally
indicated at 41,, are suspended.
The pulley 34 is used when it is desired to keep the
pulley rope or fall line parallel and in close proximity
to the power line pole 1, as will be apparent from FIG. ‘
2. The fall line is kept near the pole so that the lineman
claim:
.
_
V
V
‘
the pole footing to the side of said member, said pole
footing having an upright socket therein, an arm footing
mounted on the pole footing and having means for en
gaging in the socket for detachably holding the arm foot
ing in place with respect to the‘pole footing, said arm
footing including a substantially U-shaped saddle, said
saddle having upstanding ears, an arm base mounted in
the saddle for turning movement about a substantially
horizontalaxis relative thereto, and an arm carried by
the arm base.‘
,
2. A trip gin pole comprising a pole footing adapted
to be applied to an upright member, means for securing
the pole footing to said member, said pole footing having
an upright socket therein, an arm footing mounted on
the pole footing and having means for engaging in the
socket for detachably holding the arm footing in place
with respect to the pole footing, said arm footing includ
ing a substantially U-shaped saddle, an ‘arm base mounted
in the saddle for turning movement about a substantially
horizontal axis relative-thereto, an arm rigidly secured
to the arm base, and means for locking the arm base
selectively in adjusted positions with respect to the saddle.
3. A trip in pole comprising a pole footing adapted to
be applied to an upright member, means for securing the
pole footing to said member, said pole footing having an
upright sockettherein, an arm footing mounted on the
pole footing and having means forengaging in the socket
for _ detachably holding the arm footing in place with
respect to the polelfo'oting, said arm footing including a
substantially U-shapedsaddle, an arm base mounted in ‘7
thesaddle for turning movement about a substantially
horizontal axis relative thereto, an arm rigidly secured
or groundrnan can exert more pull on the line without 50 to the arm base, _and pin and slot means interconnecting’
getting off balance. This serves also to keep the rope
generally in a ?xed relation to the power line pole for
easy access by the lineman and prevents the rope from
draggingon wires, poles or cross arms.
-,_; The manner of use of this trip gin pole will be appar
ent from the foregoing description. It will be evident
that the pole footing is ?rst applied to the pole 1, being
the saddle and the arm base, for adjustably locking the
arm base selectively in different positions with respect
to the pole footing.
,
.
a
4. A trip gin pole comprising a pole footing adapted
to be appliedrto an upright member, means for securing
the pole footing to said member, said pole footing having
an upright socket therein, an arm footing mounted on the
initially suspended on the lag screw or nail 10, after
pole footing and having means for engaging in the socket
which the slings 15 can be tightened around the pole,
for detachably. holding the arm footing in place with
thereby securely anchoring the pole footing in place.
60 respect to the pole footing, said arm footing comprising
Thereafter; the arm footing 21 is inserted into the
a substantially U-shaped saddle having side members, a
pole footing, and the arm base 27 is adjusted in position
~cylindrical arm base journaled in the side members for
with respect to the. arm footing 21, so as to dispose the
swivelling movement with respect to the arm footing,
arm 39 in the, desired angular position with respect to
an arm rigidly secured to the arm base and supported
thepole footing and with respect to the pole 1. For
thereby, and means for adjustably locking the arm base
.many operations, the tackle blocks and cables 41 are
in place against turning movement with respect to the
used, and preferably the cables extend over the pulley
arm footing.
34, although this is not essential in all operations.
5. A trip gin pole comprising a pole footing adapted
Depending somewhat upon the circumstances of use,
to be applied to an upright member, means for securing
the arm footing21 can be removed from the pole foot 70 thev pole footing to said member, said pole footing having
ing 3 and mounted on one of the cross arms 2, as illus
an upright socket itherein, an arm footing mounted on
trated generally in. FIG. 4, if the form of arm footing
the pole footing and having means for engaging in the
shown in FIG. 4 be employed. In that event, the. arm
socket for detachably holding the arm footing in place
footing 21 is anchored securely by the locking pins 25
with respect to the pole footing, an arm base mounted on'
to the cross armZ, so as to support the arm 39 in later
the arm footing for swivelling movements about a 'sub- '
l
t
2,064,824
5
stantially horizontal axis, an arm rigidly secured to the
arm base, and cable guide means supported by a shaft
journaled in the arm base substantially on the axis of
turning movement thereof with respect to the arm foot
mg.
6. A trip gin pole comprising a pole footing adapted
to be applied to an upright member, means for securing
the pole footing to said member, said pole footing hav
ing an upright socket therein, an arm footing mounted
on the pole footing and having means for engaging in
the socket for detachably holding the arm footing in
place with respect to the pole footing, an arm base
footing for swivelling movement about a substantially
horizontal axis and adapted to support an arm thereon,
cable guide means supported by the arm base substan
tially on the axis of turning movement thereof with re
spect to the arm footing, and means mounting the cable
guide means for movement to extended and retracted
positions with respect to the arm base.
12. In a trip gin pole, an arm footing adapted to be
mounted on a support, an arm base mounted on the arm
footing for swivelling movement about a substantially
horizontal axis and adapted to support an arm thereon,
cable guide means supported by the arm base substan
tially on the axis of turning movement thereof with
respect to the arm footing, means mounting the cable
on the arm base, cable guide means supported by the 15 guide means for movement to extended and retracted
positions with respect to the arm base, said mounting
arm base substantially on the axis of turning movement
means including a shaft, spring means connected with
thereof With respect to the arm footing and means mount
the shaft normally tending to urge the shaft in one direc
ing the cable guide means for movements to extended and
tion, and means ?xing the shaft in one position with
retracted positions with respect to the arm base.
respect to the arm base.
7. A trip gin pole comprising an arm footing, said
13. In a trip gin pole, a pole footing comprising a back
footing including spaced side members adapted to be
plate having outturned ?anges thereon with notched
mounted in embracing relation on a supporting structure,
edges in position to ?t against an upright pole, a front
an arm base mounted on the footing for swivelling move
plate spaced from the back plate, connecting webs secured
ments with respect thereto about a substantially horizon
mounted on the arm footing for swivelling movements
about a substantially horizontal axis, an arm mounted
tal axis, an arm rigidly secured to the base, and means 25 therebetween to form a box having an open top and
for locking the arm base selectively in adjusted positions
bottom, an upright cylinder secured within the box, trans
with respect to the footing.
verse webs secured between the connecting webs and
spaced from the front plate and back plate, and ?exible
8. A trip gin pole comprising a pole footing adapted to
devices connected with the front plate and extending
right cylindrical socket therein, and having pockets on 30 therefrom for embracing relation with the pole to secure
the pole footing to the latter.
opposite sides of the socket adapted to receive selectively
14. In a trip gin pole, a pole footing comprising a back
in the socket or pockets an arm footing for supporting
plate having outturned ?anges thereon with notched edges
an arm thereon.
in position to ?t against an upright pole, a front plate
9. A trip gin pole comprising a pole footing adapted
to be applied to a support, said pole footing having an 35 spaced from the back plate, connecting webs secured
be applied to a support, said pole footing having an up
upright cylindrical socket therein, and having pockets
on opposite sides of the socket, an arm footing having
a depending cylindrical section journaled in the socket
and vertically removable therefrom for replacement with
therebetween to form a box having an open top and bot
tom, means in the box for mounting an arm, wing plates
extending outwardly from the back plate in position to
engage the pole, and ?exible devices connected with the
an arm footing having members engaging in the pockets. 40 pole footing and extending therefrom for embracing rela
tion with the pole to secure the pole footing to the latter.
10. In a trip gin pole, an arm footing comprising a
substantially U-shaped saddle having depending spaced
side members so arranged as to be secured to a support,
said saddle having upstanding ears, an arm base inter
posed between the upstanding ears and having cylindrical 45
portions on opposite sides thereof telescoped in the ears
and journaling the arm base on the saddle, and an arm
rigidly secured to the arm base and extending upwardly
therefrom.
11. In a trip gin pole, an arm footing adapted to be 50
mounted on a support, an arm base mounted on the arm
References Cited in the ?le of this patent
UNITED STATES PATENTS
663,121
‘1,247,706
2,025,284
2,508,974
2,697,776
Frost ________________ __ Dec. 4,
Moran ______________ __ Nov. 27,
Huot _______________ __ Dec. 24,
Soditch _____________ __ May 23,
Wale ________________ __ Dec. 21,
1900
1917
1935
1950
1954
2,833,423
Tucker ______ n, ______ __ May 6, 1958
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