Bit Cleaner Page: 3 of 4
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UNITED STATES PATENT OFFICE.
SOSTHE1E ROBICHAUX, OF SARATOGA, TEXAS, ASSIGNOR OF ONE-HALF TO A. W.
ROARK, OF EARDIN COUNTY, TEXAS.
BIT-CLEANER.Specification of Letters Patent.
Patented Feb. 17, 1920.
Application filed October 21, 1918. Serial No. 259,115.
To all whom it may concern:
Be it known that:I, SOSTIHENE ROBIOHAUX,
a citizen of the United States, residingat Sar-
atoga, in the county-of Hardin and State of
5 Texas, have invented certain new and useful
Improvements in Bit-Cleaners, of which the
following is a specification.
This invention relates to new and useful
improvements in a bit cleaner.
10 The object of the invention is to provide
a device of the character described, which is
designed for the purpose of cleaning bits
used in drilling wells. In drilling wells, a
drill stem is commonly employed which is
15 rotated by means of a rotary, from the
ground surface, and to the lower end of this
stem, a drill bit is attached. In drilling,
certain formations through which the bit
passes have a tendency to adhere to the bit,
20 and obstruct the drilling process. It is the
object of this invention to provide an at-
tachment which will automatically clean the
bit, and remove the adhering formation,
without the necessity of withdrawing the bit
25 to clean the same.
Another object of the invention is to pro-
vide an attachment of the character de-
scribed, which will be automatically oper-
ated by the water which is forced clown
30 through the drill stein to the point of- the
bit, to carry away the cuttings.
Another feature of the invention resides
in.the provision of a device of the character
described, which is simple in construction
35 and operation, and which may be readily
applied to the drill stem.
With the above and other objects in view,
the invention has particular relation to cer-
tain novel features of construction, opera-
40 tion and arrangement of parts, an example
of which is given in this specification and
illustrated in the accompanying drawings,
wherein:
Figure 1, is a vertical sectional view of
45 the upper part of the device, showing the
operative mechanism.
Fig. 2, is a vertical sectional view of the
lower end of the stein, showing the bit at-
tached thereto, and the cleaning blades.
50 Fig. 3, is a vertical sectional view of the
upper part of the device, taken at right an-
gles to the view shown in Fig. 1.
Fig. 4, is a vertical sectional view of the
lower part of the stem taken at right angles
55 to the view shown in Fig. 2.Fig. 5, is a transverse sectional view taken
on the line 5-5 of Fig. 1.
Fig. 6, is a transverse sectional view taken
on the line 6-6 of Fig. 1.
Fig. 7, is a transverse sectional view taken 60
on the line 7-7 of Fig. 1.
Fig. 8, is a transverse sectional view taken
on the line 8-8 of Fig. 1, and
Fig. 9, is a bottom view of the device.
Referring now more particularly to the 65
drawings, wherein like numerals of refer-
ence designate similar parts in each of the
figures, the numeral 1, refers to a drill stem,
the lower end of which is formed of a short
tubular section 2, which is connected to the 70
stem by means of a collar 3. Within the
upper end of the-section 2, is a small turbine
4, Which has the vertical drive shaft 5 con-
nected thereto. This drive shaft has a bear-
ing in the stuffing box 6, which is carried by 75
the transverse partition 7, of the section 2,
and the lower end of this shaft has a bevel
gear 8, fixed thereon, which is in mesh with
a corresponding bevel gear 9, fixed on the
transverse shaft 10.' This last mentioned 80
shaft is operatively connected with and
drives the crank shaft 11 through an inter-
mediate train of gears 12. The crahk shaft
has a wrist pin 13, and a connecting rod 14
is provided., one end of which is pivoted to 85
the wrist pin 13, and the other end of which
is pivoted to a cross head 15, which recip-
rocates within the section 2. The lower end
of the section 2, is closed by means of the
partition 16, and the mechanism between the 90
partitions 7 and 16, thus operates in a closed
chamber, which is filled with oil, whereby
the mechanism therein is lubricated. The
partition 1.6 has a stuffing box 17, through
which the rod 18 operates. The upper end 95
of this rod has a resilient cushion 19, against
which it operates, and is provided for a pur-
pose hereinafter to be explained.
To the lower end of the section 2, a nipple
20 is attached by means of the collar 21, and 100
the lower end of this nipple has a collar 22,
to which the drill bit 23 is attached. The
lower end of the collar 22 is internally
threaded, and the drill bit has an externally
threaded shank which is screwed thereon, 105
thus forming a means of attaching the bit
23 to the collar 22. A U-shaped member is
provided, having the arms 24, 24. This
me mber is attached to the lower end of the
rod 18, and its arms extend through oppos- 1101,331,126.
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Robichaux, Sosthene. Bit Cleaner, patent, February 17, 1920; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth1259083/m1/3/: accessed July 2, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.