Well-Boring Rod. Page: 2 of 3
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UNITED STATES PAENT OFFICE.
MAHLON E. LAYNE, OF HOUSTOi; TEXAS.
WELL-BORING Rot.Specifeation of Letters Patent.
Patented May 21, 1418.
Application Mled February 5, 1917. Serial No. 146,581.
Jo a6 whom it may concern:
Be it known that I, MAHLON F LAYNE,
a citizen of the United States, residing at
Houston, in Harris county, Texas, have in-
5 vented certain new and useful Improve-
ments in Well-Boring Rods, of which the
following is a specification. -
The invention relates to an improvement
in well boring rods, or other similar de-
'10 vices in which a hollow rod or shaft is used
as a rotary power transmission shaft. The
invention has' for its primary objects .the
provision of means for reinforcing or
stiffening a' well boring rod, so that a lighter
15 tube may -be used than would otherwise be
the case; the provision of 'ieans whereby
the whipping or lTteral vibration of the rod
is reduced and its life increased due to the
stiffening means; and the provision of
20 means especially desirable in-large sizerela-
tively thin rods, such as can be used where'
inside couplings like those of my Patent
No.t1,223,591, April 24, 1917, are employed.
Certain embodiments of the invention are
25 illustrated in the accompanying drawings,
wherein-
Figure 1 is a longitudinal section through
one embodiment of the invention; Fig. 2 is
a longitudinal section. illustrating 'certain
so modifications of the construction; Fig. 3
is an end view of the construction of Fig.
4; and Fig. 4 is a section through still' an-
other modification.
Referring to Fig. 1, the numeral 1 repre-
35 sents a well boring rod or tube provided at
intervals with internal stiffening rings or
portions 2, carrying at its ends the coupling
members "3 and 4. The coupling members
3 and 4 are preferably of the type shown
40 and claimed in my co-pending application,
Serial Number 803,889, heretofore referred
to; 'such niembers being rigidly secured in
position in the ends of the tube by welding
or shrinking or by any of the means shown
45 in the said application.
The stiffening rings or thickened portions
2 are spaced apart at any desired interval
and may be formed by any of the upsetting
processes known in the arts or by rolling
50 the metal in sheets with the raised portions
thereon and subsequently forming such
sheets into tubes.
Fig. 2 illustrates two modifications of the
invention wherein the tube or rod. 5 is pro-
65 vided with the stiffening rings 6, 61, 61,1
which are not integral with the tube. Theymay be forced into. position by sufficient
power to insure a tight fit, or may be se-
cured by shrinking, 'the rings being placed
cold in a heated tube, or they may be'posi- 60
tioned and held in place by means of lugs
00 formed 'on the inside of the tube. The
securing of the rings is also preferably
made more positive by spot welding or: by
using some mechanical means for attaching 65
them to the'walls of the pipe, there being
a wide variety of means which might be
employed for this purpose. It is also possi-
ble to secure the rings by placing them in
position and subsequently expanding them. 70
Figs. 3 and 4 illustrate another method
of insuring maintenance of the- rings 7 in
proper position in the tube 8. These rings
are provided with grooves 9 (Fig. 3) along
one side through- which the holding rod 10 75
extends, such holding rod being provided
with upset portions 11 on opposite sides of
each ring. The rings are preferably tightly
fitted into position and the rod 10 is de-
pended upon to insure their proper main- so
tenance in position even though they .should
become loosened by the vibration or for any
other reason.
The foregoing is' merely illustrative of
the invention, as it will be seen that a large 85
number of other means well known in the
mechanical arts might be employed for 'po-
sitioning and securing the rings and that
a variety of methods and machines might
be employed for dither forming the rings 90
integral with the pipe or for positioning
and securing them. In each case the rings
whether integral with the pipe, or fitting
tightly. therein, or somewhat loosely, per-
form the same function of "stiffening the 95
tube. - A tube when subject to torsional
strain, tends to fail by twisting into a .
smaller diameter or collapsing, and the rings
or thickened portions resist this collaps-
ing action. By a proper use of the rings 100
if-. is possible: to use a lighter tube than
would otherwise be possible, and a tube of
the same thickness thus reinforced is much
stronger than a tube without the reinforc-
ing portions. The tube is also much less 105
subject to whipping or lateral vibration so
that the life of the tube is prolonged by
the use of the. stiffening rirfgs which re-
duce the weakening incident to the con-
stant lateral vibration and twisting torsion. 110
The construction is particularly useful
where couplings of the type shown in Fig.1,266,831.
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Layne, Mahlon E. Well-Boring Rod., patent, May 21, 1918; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth1256707/m1/2/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.