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Патент USA US2129395

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Sept. 6, 1938.
A. ANDERSON
2,129,395
READING DEVICE FOR WELL SURVEY RECORDS
Filed April 28, 1937
21
165
29w //
1
67/
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17
airman;
Patented Sept. 6, 1938
2,129,395
UNITED STATES
PATENT oFFicE
2,129,395
READING
DEVICE
FOR
WELL ‘SURVEY
RECORDS
-
Alexander Anderson, Fullerton, Calif., assignor,
by mesne assignments, to Lane-Wells Com
pany, Los Angeles, Calif., a corporation of Del
aware
Application April 28, 1937, Serial No. 139,553
11 Claims.
This invention relates to devices for reading
well survey records, and among the objects of
my invention are:
First, to provide a device of this character
5 which is particularly designed to assist'in the
reading of photograph record discs obtained from
Well survey apparatus, such as describedin my
10
the outer ring 4 and is provided with an aperture
copending application, Serial No. 35,183, ?led
August 7, 1935.
Second, to provide a reading device for survey
record discs whereby the inclination and direc
gree or compass scale 9 (shown fragmentarily 10
in " Figure 1) with the characters ‘N”, “E”,
tion of a well bore recorded on such record disc
Third, to provide a device of this character
15 which receives a circular flat record disc bear
ing indicia; indicating a plane of inclination in
relation to other indicia indicating a plane of
direction, said device incorporating means where
by known magnetic deflections of the direction
20 indicating indicia may be compensated for and the
true azimuth of the inclination indicia obtained;
Fourth, to provide a device of this character
which may be readily carried on the person so
that it may be available in the ?eld to interpret
25 well bore record discs;
'\
Fifth, to provide a device of this character
adapted to operate in conjunction with a record
disc bearing code indicia designed to prevent
interpretation of. the record disc without use of
30 the reading device, thereby preventing un
authorized knowledge of the information occur
ring on the record disc.
With the‘ foregoing and other objects in view,
as may hereinafter appear, reference is made to
35 the accompanying drawing, in which:
Figure 1 is an enlarged plan view of my reading
device with a record disc shown in position, and
parts and portions of the disc and reading device
broken away to facilitate the illustration;
Figure 2 is a transverse sectional view through
the reading device and disc, taken along the line
2--2 of Figure 1;
\ gigure 3 is a plan view of the record disc alone;
an
45
screws 1 extending up through arcuate slots 8
provided in the base i, so that the inner ring
may be adjusted and secured angularly with
respect to the outer ring. The outer periphery of
the inner ring 5 abuts the inner periphery of
equal in diameter to the bore of the bearing 3.
The outer ring, which may be called the scale
ring, is provided around its periphery with a de
may be conveniently and accurately interpreted;
40
(Cl. 33—1)
“W” and S”, indicating the cardinal points of
the compass.
As disclosed in the above men
tioned copending application, the survey record
is 180 degrees out of phase with a true compass 15
bearing, for when the inclination is toward the
north the plumb bob hangs toward the south.
Consequently, the scale 9 is correspondingly
shifted, and the portions of the east and west
indicia appear interchanged.
.
I
20
a The inner ring, which may be termed the
dummy compass ring, is provided with indicia H)
which may be representative of a compass needle
interpreted by the central aperture of the ring 5.
I This indicia is positioned diametrically and is 25
preferably black, except for a diametrically ex
tending line H. In addition, the end represent
ing north may be provided with a cross bar l2
which corresponds to the marking on the record
disc, as will be brought out hereinafter. The 30
dummy compass disc is adjusted so that the hair
line I I is arcuately ‘displaced equal to the dec
lination of a magnetic compass for the region in
which the device is to be used, and there secured
by screws 1; for example, the drawing illus
trates a declination of approximately sixteen de
grees east of north.
The periphery of therim 2' is recessed at its
upper portion to receive an annular band l3.
Behind the band l3 the rim 2 is provided with an 40
annular channel l4 into which extend one or
more set screws‘ l5,.secured in the band l3 so as
to retain the band in place but permit its rota
tion. The upper edge of the band I3 is substan
Figure 4 is a similar plan view of a record disc _ tially ?ush with the surface of the rings 4 and 5, 45
bearing code marks.
Referring to the drawing: The reading device
incorporates a body or base I which is in the form
of a plate having a depending marginal rim 2
50 and a central hollow boss or bearing 3. The
upper side of the base I is covered by an outer
ring 4 and an inner ring 5, both of which are ?at.
The outer ring 4 is secured inv ?xed position by a
plurality of screws 6 extending upwardly through
55 the base I, while the inner‘ring 5 is secured by
over which is ?tted a ?at, transparent dial plate
l6 which is clamped to the band I3 by means ‘of.
'an annulus l1 and screws l8. The dial plate
isvprovided on its underside with a single radi
ally extending hair line H).
, I
50
The bearing l3 receives a record disc holder
20 which journals snugly therein. The upper
end of the holder 20 is recessed to receivea ?at
record disc 2|. The record disc 2| comprises
a body portion, the upper surface of which has 55
2
2,129,395
previously been sensitized and upon which has
been photographed a plurality of concentric ring
markings 22, a compass needle image 23 and
a cross hair image 24 from a plumb bob or other
inclinometer, all of which is obtained as more
fully disclosed in my copending application re
ferred to hereinbefore. The periphery of the
disc is preferably reinforced by a metal rim 25.
The concentric rings 22 indicate degrees of in
dication from the vertical, and in the drawings
so that when the record disc 34 is inserted, the
lines 36 and 31 may be brought into registry,
whereupon the azimuth of the cross hair image
24 may be obtained. In order to read the in
clination from vertical of the cross hair image 1
24, concentric circles corresponding to the in
clination circles 22 may be inscribed on the
underside oi’ the dial plate l6.
Thus, without knowing the relationship that
the lines 36 bear to the compass needle and the 10
Of
scale employed for the inclination rings on the
course, the rings may be arranged to indicate a
record disc, it is impossible to interpret the rec
ord disc without the use of the reading device
and the record may, if desired, be kept in strict
the rings have a range of ?ve degrees.
larger or lesser number of degrees.
To facilitate the ejection of the record disc,
the holder 20 is equipped with a plunger 26 set
in a socket formed within the disc-receiving re
cess. A plunger stem 21, in the form of a screw,
extends through the holder 20 with its head 28
exposed to the underside of the holder so that
est con?dence.
15
By providing extra screw holes in the inner
ring 5 for accommodating screws 1, the ring may,
be adjusted to any angular position relative to
the outer ring 4. This is particularly desirable
when employing the code markings 31, as this 20
-it may be engaged by one’s thumb. The stem
21 may be locked in place by a set screw 29
screw-threaded from the upper side of the plung
er 26. It is preferred to recess the underside of
a?ords a simple means of changing the code
employed on the compass code mask employed
the holder 20 so that the stem 21 does not pro
device.
trude beyond the lower face of the holder.
The holder is yieldably retained in the bearing
Though I have shown and described particular 25
embodiments of my invention, I do not wish
3 by means of a ball keeper 30 backed by a
spring 3| and adapted to engage an annular
groove 32 in the side of the holder 20. The ball
30 keeper and spring are preferably mounted with
in a socket formed within a retainer 33 adapted
to be screw-threaded laterally into the bear~
in the surveying instrument and the reading
to be limited thereto, but desire to include in
the scope of my invention the constructions,
combinations and arrangements substantially as
ing 3.
embraced in the appended claims.
30
I claim:
1. A reading device for interpreting a well
survey record disc bearing survey indicia, com
Operation of the reading device is as follows:
The record disc 2|, after being taken from a
thereon; a ring carried by said base and angu 33
surveying instrument and developed, is placed in
the upper end of the holder 20 and the holder
inserted in the bearing 3. Thereupon, the holder
is turned until the axes of the compass needle
40 image 23 coincides with the dummy compass in
dicia [0, as shown in Figure 1.
This may be
accomplished with the aid of the radial hair line
I9 by turning the dial plate 16 so that it func
tions as a reference line‘ for the axis of the
dummy compass and compass image. There~
upon, with the record disc remaining in such
position, the dial plate 16 is turned until the
hair line l9’ traverses the intersection of the
cross hair image 24. Reading in terms of true
50 bearing is then taken on the scale 9.
In Figure 1 the dummy compass is shown as
occupying a declination of approximately sixteen
degrees east of north. The compass image of the
record disc is turned so that it, likewise, indi
cates a declination of sixteen degrees east of
north. Thereupon, it is found, when aligning
radially the intersection of the cross hair image
24 with the center of the disc and the scale 9,
that the direction ‘of inclination of said cross
60 hair image is three degrees west of south. By
. counting the number of circles 22 from the center
of the record disc to the cross hair image 24, it
is found vthat the inclination from vertical is
slightly over four degrees.
It is sometimes desirable that the information
, obtained by the record discs be held con?den
tial. Therefore, a special record disc 34 is em
ployed which is provided with code markings
36 in the form ‘of radial photographic lines ob
70 tained by a special card mounted on and mask
ing the survey compass, but bears the cross hairv
image 24 of the plumb bob, as in the ?rst de
scribed record disc.
'
The inner ring 5 is inscribed with radial lines
75 31 corresponding to the radial image lines 36,
prising: a base having a dummy compass scale
larly adjustable with respect to said scale, said
ring being positioned co-planular with said scale
and having indicia thereon; a record disc holder
carried by said base and rotatable therein; and
means rotatable on said base, having a radial
index for aligning the indicia on said ring and
on said disc with said scale.
2. A reading device for interpreting a well
survey record disc bearing survey indicia, com
prising: a base having a dummy compass scale
thereon; a ring carried by said base and angu
larly adjustable with respect to said scale, said
ring having indicia thereon; a record disc holder
in said base and readily removable therefrom;
and means rotatable on said base having a ra
dial index for aligning the indicia on said ring 50
and on said disc with said scale.
_
3. A reading device for interpreting a well sur
vey record disc bearing survey indicia, compris
ing: a base, a dummy compass scale means and
indicia bearing means coaxially mounted there
on and relatively adjustable angularly; a record
disc holder carried by and rotatable in said base; ,
ejector means associated. with said holder for re
moving said disc therefrom, said holder adapted 60
to position said record disc in coaxial association
with said scale means and indicia. bearing means;
and means rotatable on said base having a radial
index for aligning the indicia on said indicia
bearing means and on said record disc with said
scale means.
4. In a device for reading direction indicia re
corded on a disc, the combination comprising: a
base having a dummy compass scale thereon; a
ring carried by said base and angularly adjust 70
able with respect to said scale, said ring having
indicia. thereon; a record disc holder rotatable
in said base and removable- therefrom; spring
detent means tending to retain said holder in
said base; and means rotatable on said base hav
75
3
2,129,395
ing a radial index for aligning the indicia on
said ring and on said disc with said scale.
5. In a device for reading direction indicia re
corded on a disc, the combination comprising: a
base having a dummy compass scale thereon; a
ring rotatable on said base and having indicia
thereon its surface being co-planular with said
scale; clamping means to lock the adjustment of
said ring with respect to said base; a record disc
holder rotatable in said base and adapted to hold
the disc substantially ?ush with said scale and
ring; and rotatable means having a radial index
thereon for aligning indicia on said ring and on
said disc with said scale and in approximate con
tact therewith to minimize parallax effect.
with said direction markers whereby said mark
ings and symbols may be brought into registry
for intelligible direction indication; and an in
strumentality revolvably mounted concentrically
with said disc and incorporating an element for
facilitating correlation of said markings and
symbols.
9. A reading device for interpreting a well sur
vey record disc bearing codi?ed symbols indica—
tive of direction and inclination, comprising: 10
means incorporating a compass scale and direc
tion markings codi?ed in correspondence with
the direction symbols on said disc; means for
6._ In a device for reading direction indicia re
corded on a disc, the combination comprising: a
base having a dummy compass scale thereon; a
revolvably supporting said disc in association
with said direction markers whereby said mark 15
ings and symbols may be brought into registry
for intelligible direction indication; and an in
strumentality for coacting with said inclination
ring rotatable on said base and having indicia
thereon; a record disc holder in the form of a
plunger rotatably mounted in said base and read
symbols to render the same intelligible.
10. A reading device for interpreting a well sur
vey record disc bearing codi?ed symbols indica
ily removable therefrom; and rotatable trans
tive of direction and inclination, comprising:
parent means covering said ring and said scale
and bearing a visible radial index thereon for
aligning indicia on said ring and on said disc
with said scale.
7. A reading device for interpreting a well sur
vey record disc bearing survey indicia, compris
ing: a circular base having a dummy compass
scale thereon; a compass needle declination indi~
cator rotatable on said base; a record disc holder
removably journalled in the center of said base;
20
means incorporating a compass scale and direc
tion markings codi?ed in correspondence with
the direction symbols on said disc; means for 25
revolvably supporting said disc in association
with said direction markers whereby said mark
ings and symbols may be brought into registry
for intelligible direction indication; a transparent
dial plate overlying ‘said disc and scale, and in 30
cluding a radial index to facilitate correlation of v
said direction symbols and markings; and con
and transparent means‘rotatable on said base
centric ring indexes coacting with said inclina
having a radial index marked thereon for align
ing indicia on said indicator and on said record
disc with said scale, and having a plurality of
concentric circles marked thereon for reading
inclination indicia on said record disc.
tion symbols to render the same intelligible.
11. A device for interpreting va well survey 35
record disc having indicia appearing on the sur
face thereof, comprising: a base having corre
lated indicia thereon'ancl a central aperture to
receive said disc; means for removably holding
said disc with its indicia substantially flush with 40
said correlated indicia; and a transparent ro
tatable cover for said base and disc having index
markings on its underside in proximity to said
8. A readingdevice for interpreting a well sur
vey record disc bearing codi?ed symbols indica
tive of direction and inclination, comprising:
means incorporating a compass scale and direc
tion markings codi?ed in correspondence with
the direction symbols on said disc; means for
revolvably supporting said disc in association
indicia.
.
ALEXANDER ANDERSON.
45
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