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Патент USA US2130423

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&pa, ' 20 , 1938.
W. A. GOFF
2,130,423
DERRICK FINGER
Filed Jan. 4, 1936
2 Sheets~Sheet l
7
J/VVi/V 70H.
WILL/19M A. $0”:
Sept‘. 20, 1938.
2,130,423
W. A. GQFF
‘
‘
DERRICK FINGER
_
Filed Jan. 4, 1956 ‘
2 Sheets-Sheet2
INVENTOR
Mum/*2 4. Gan-z
2,130,423
Patented Sept. 20, 1938
UNITED STATES PATENT OFFEQE
2,130,423
DERRICK FINGER
William A. Goff, Long Beach, Calif.
Application January 4, 1936, Serial No. 57,630
12 Claims.
This invention relates to a derrick ?nger par
ticularly applicable for the drilling of deep bore
holes, such as oil wells, and its purpose is to pro
vide a brace or guiding member for pipe while
5 it is being lowered or removed from the bore hole.
An object of my invention is to provide a novel
derrick ?nger which can be swung into or out
of operative position by manipulation of the
operator in the derrick.
Another object is to provide a novel derrick
?nger of the character stated, which is automati
cally swung into or out of operative position when
released by the derrick operator.
A further object is to provide a novel movable
tip on the ?nger whereby the ?nger will not be
broken when accidentally engaged by various
drilling equipment.
Other objects, advantages and features of in
vention may appear from the accompanying
20 drawings, the subjoined detailed description, and
the appended claims.
In the drawings
Figure 1 is a top plan view of the derrick
?nger.
25
Figure 2 is a side elevation of the same with
parts broken away to show interior construction.
Figure 3 is a view similar to Fig. 2 but with
the ?nger in retracted position.
Figure 4 is an end view of the ?nger in the
position as shown in Fig. 3, with parts broken
away to show interior construction.
Figure 5 is an end view of the latch plate on
the ?nger.
Figure 6 is a fragmentary sectional view of the
35
?nger tip joint.
Figure '7 is a view similar to Fig. 6, showing
the tip moved to one side.
Figure 8 is a fragmentary sectional view of
the tip joint in plan.
Figure 9 is a view similar to Fig. 8, showing
40
the tip swung to one side.
Figure 10 is a fragmentary perspective view
of the ?ngertip.
Figure 11 is a fragmentary perspective view of
45
the latches for holding the ?nger in extended
or retracted position.
Figure 12 is a fragmentary perspective view of
the frame showing its mounting on a derrick
member.
Referring more particularly to the drawings,
50
the numeral l indicates the derrick which in
cludes a horizontal member 2, this horizontal
member being positioned a considerable distance
above the floor of the derrick. A frame 3 is se~
curely'fastened to the derrick member 2 and
(Cl. 211-60)
extends inwardly towards the pipe (not shown)
which is supported in the derrick. The frame
3 is preferably a channel member, substantially
as shown, altho other structural shapes may be
used, if desired. The frame 3 may be attached
to the member 2 by means of plates 4 or other
suitable mounting means.
The ?nger 5 comprises a base member 6 and a
tip 1 which is movably mounted on the outer end
of the base. The base is pivotally mounted on
the outer end of the frame 3 by the pin 8 which
extends thru the frame and the base. The base
6 is preferably hollow for a purpose to be fur
ther described.
A latch plate 9 is provided on the inner end
of the base 6 by means of which the ?nger is
releasably held in horizontal position, as shown
in Figs. 1 and 2. When the ?nger is in horizon~
tal position, the latch plate projects thru a hole
20
ill in the top of the frame 3.
A latch bolt H is slidably mounted on the top
of the frame 3 and extends over the hole Hi.
This bolt is yieldably pressed into engagement
with the plate 9 for the purpose of holding the
?nger in horizontal position. The spring means 25
whereby the bolt is urged into engagement with
the plate will be subsequently described.
'
Asecond latch bolt l2, shaped as a bell crank
lever—-is adjacent the front end of the frame 3.
A coil spring’ I3 engages the latch l2 and urges 30
the latch into the catch I 4 in the base 6. The
catch may be a slot, as shown, or some other
analogous structure.
-
When the ?nger is in vertical position, as
shown in Figs. 3 and 4, the latch bolt l2 engages
the ?nger releasably holding the same in vertical
position. A link l5 connects the latch bolts H
and I2 so that both of these latches work syn
chronously.
'
A trip cord i5 is attached to the bolt II and 40
extends back to the derrick at a position con
venient for the operator who pulls on the cord
for the purpose of releasing the ?nger in either
its horizontal or vertical position.
The tip 1 is provided with a curved boss I‘!
which ?ts into the end of the base 6. One face
of the boss is flat, as shown at l8, and this face
?ts against a wall of the base 6, as shown in'
Fig. 8, so that the tip ‘I cannot move horizon
tally in one direction. In the other horizontal
direction, however, the tip can move as shown in
Fig. 9. The tip may also move vertically up or
down, as shown in Fig. 7. A stout spring 19
within the base 6 is attached to the tip ‘I by a
cable 20. Thus, the tip is yieldably held in align
55
2
2,130,423
ment with the base 6 except when a load is placed
on the tip, i. e., when the traveling blocks strike
the tip. When an excessive load is placed on
mounted on the frame, said ?nger being adapted
the tip, it will move vertically or in one direc
able with the ?nger when in horizontal position,
tion horizontally, thus preventing injury to the
tip. As soon as the load is released, the spring
IE will carry the tip into its normal operative
position.
with the ?nger when in vertical position, means
engaging the ?rst named latch and adapted to
A plurality of notches 2| may- be provided in
10 the face of the tip I for the purpose of receiving
the pipe which is being worked upon.
A cable
22 is attached to the base 6 and extends over a
sheave 23 and thence to a coil spring 24. The
other end of the spring 24 is attached to a han
15 dle 25 by means of the cable 26.
The operation of my invention is as follows:
When the pipe is being run into the hole, and is
actually moving, the ?nger 5 is in vertical po~
sition, as shown in Figs. 3 and 4. The handle
25 has been moved upwardly, thus allowing a
slack in the cable 22, and gravity will swing the
base 6 downwardly until the latch bolt l2 en
gages the' base and releasably holds the base in
vertical position. The operator then swings the
25 handle 25 downwardly which places a tension
in the spring 24. As soon as the ?nger is to be
used, the operator pulls upon the cord I6 there
by releasing the bolt I2. The spring 24 then
swings the ?nger into horizontal position, as
30 shown in Figs. 1 and 2. The latch ll then en
. gages the plate 9, and the ?nger is ?xedly held
in horizontal position. After the finger’ has been
used, the {handle 25 is again moved upwardly, as
previously described, and the latch H is released
35 by the cord 16, whereupon the ?nger swings into
and arranged to swing into a horizontal or a ver
tical position, a latch means on the frame engage
a second latch means on the frame, engageable
release the same and spring means engaging the
?nger whereby the ?nger is yieldably urged into
horizontal position from its vertical position, and 10
a movable tip on said ?nger.
5. In a derrick ?nger, a frame ?xedly attached
to a derrick, a ?nger pivotally mounted on the
outer end of the frame, said ?nger being adapted
and arranged to swing into horizontal or vertical
positions, a latch on the frame engageable with
the ?nger when in horizontal position, a second
latch on the frame engageable with the ?nger,
when in vertical position, release means engag
ing the last named latch.
6. In a derrick ?nger, a frame ?xedly attached
to a 'derrick,:a ?nger pivotally mounted on the
outer end of the frame, said ?nger being adapted
and arranged to swing into horizontal or vertical
positions,‘ a latch on the frame engageable with 25
the ?nger when in horizontal position, a second
latch on the frame engageable with the ?nger,
when in vertical position, release means engag
ing the last named latch, spring means engaging
the ?nger, manual means attached to the spring 30
whereby the spring is placed in tension, said
spring -means yieldably urging the ?nger into
horizontal position from its vertical position.
'7. In a derrick ?nger, a frame ?xedly attached
to a'ederrick, a ?nger pivotally mountedv ‘on the
vertical position, and the operation is repeated.
outer end of the frame, said ?nger being adapted
~Having described my invention, I claim:
1. In-alderrick ?nger, a horizontal frame ?xedly
mounted in the derrick, a ?nger pivotally mount
4,0 ed on the frame, said ?nger being adapted and
and'arranged to swing into horizontal or vertical
positions, a latch on the frame engageable vwith
the ?nger when in horizontal position, a second
latch on the frame engageable with the ?nger,
when in vertical position, release means engag
ing the last named latch, spring means engaging
the ?nger, manual means attached to the spring
,;arranged to swing into a horizontal or vertical
position, a latch means on the frame adapted
to engage the ?nger in horizontal position, a sec
ond latch means on the frame adapted to engage
45 the ?nger in vertical position, means engaging
' the ?rst named latch, adapted to release the same
and means engaging the last named latch and
adapted to release the same.'
.2. In a derrick ?nger, a horizontal'frame ?x
50 edly mounted in a derrick, a ?nger pivotally
mounted on the frame, said ?nger being adapt
ed and arranged to'swing into a horizontal or a
vertical position, a latch means on the frame
whereby the spring is placed in tension, said
spring means yieldably urging the ?nger into
horizontal position from its vertical position, and
ayieldable tip mounted on the ‘?nger.
8. In a derrick ?nger, a frame ?xedly attached
to a derrick, a ?nger pivotally mounted on the
frame, a ‘latch plate on the ?nger, a latch bolt r
mounted on the frame, said latch bolt being
engageable with the ?nger when in horizontal
adapted to engage the latch plate whereby the
?nger is held. in horizontal position, manual re
lease means engaging the latch, a second latch
position, a second latch means on the frame,
. engageable with the ?nger when in vertical posi
ger, engageable by the second latch bolt, whereby
tion, means engaging the ?rst named latch and
adapted to release the same and spring means
. engaging the ?nger whereby the ?nger is yield;
60 ably urged into horizontal position from its ver
tical position.
3. In a derrick ?nger, a horizontal frame ?x
edly mounted in the derrick, a ?nger pivotally
mounted on the frame, said ?nger being adapt
ed and arranged to swing into a horizontal or
vertical position, a latch means on the frame
adapted to engage the ?nger in horizontal posi
tion, a second latch means on the frame adapted
to engage the ?nger in vertical position, means
engaging the ?rst named latch, adapted to release
‘the same and means engaging the last named
latch and adapted to release the same, and a
movable tip on said ?nger.
4. In a derrick ?nger, a horizontal frame ?x
edly mounted in aderrick, ,a ?nger pivotally
bolt mounted on the frame, a catch on the fin
the ‘?nger is held in vertical position and manual
means engaging the second latch bolt whereby
the second latch bolt is releasable from the fin
gel‘.
9. In a derrick ?nger, a frame ?xedly attached
to a derrick, a ?nger pivotally mounted on the
frame, a latch plate on the ?nger, a latch bolt
mounted on the frame, said latch bolt being
adapted to engage the latch plate whereby the
?nger is held in horizontal position, manual re
lease means engaging the latch, a second latch
bolt mounted on the frame, a catch on the ?nger,
engageable by the second latch bolt, whereby the
?nger is held in vertical position and manual
means engaging the second latch bolt whereby
the second latch bolt is releasable from the ?n
ger, spring means attached to the ?nger, manual
means attached to the spring means urging the 76
2,130,423
?nger into horizontal position when said spring
means is in tension.
10. In a derrick ?nger, a frame ?xedly at—
tached to a derrick, a ?nger pivotally mounted on
$1 the frame, a latch plate on the ?nger, a latch bolt
mounted on the frame, said latch bolt being en
gageable with the latch plate whereby the ?n
ger is held in horizontal position, manual release
means attached to the latch, second latch bolt
10 mounted on the ?nger, a catch on the ?nger
engageable by the second latch bolt whereby the
?nger is held in vertical position and a link con
necting the ?rst and last' named latches.
11. In a derrick ?nger, a frame ?xedly at
15 tached to a derrick, a ?nger pivotally mounted
on the frame, a latch plate on the ?nger, a latch
bolt mounted on the frame, said latch bolt being
engageable with the latch plate whereby the ?n
ger is held in horizontal position, manual release
20 means attached to the latch, second latch bolt
mounted on the ?nger, a catch on the ?nger en
3
gageable by the second latch bolt whereby the
?nger is held in vertical position and a link con
necting the ?rst and last named latches, and a '
yieldable tip mounted on the ?nger.
12. In a derrick ?nger, a frame ?xedly at
tached to a derrick, a ?nger pivotally mounted
on the frame, a latch plate on the ?nger, a latch
bolt mounted on the frame, said bolt being en
gageable with the latch plate whereby the ?nger
is held in horizontal position, manual release 10
means attached to the latch, second latch bolt
mounted on the ?nger, a catch on the ?nger en
gageable by the second latch bolt whereby the
?nger is held in vertical position and a link con~
necting the ?rst and last named latches, spring
means attached to the ?nger, manual means en
gaging the spring means whereby the spring
means is placed in tension, said spring means
urging the ?nger into horizontal position, and a
yieldable tip on the ?nger.
WILLIAM A. GOFF.
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