Fuel Rod Coupling Page: 2 of 3
This patent is part of the collection entitled: Texas Patents and was provided to The Portal to Texas History by the UNT Libraries Government Documents Department.
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UNITED STATES PATENT OFFICE.
WARD 3. SHELDON AND CHARLES H. ALLEN, OF ELECTRA, TEXAS.
SUCKER-ROD OR PULL-ROD COUPLING.Speciicatioi of Letters Patent.
Patented June 3,1919.
Application fled June 1, 1917. Serial No. 172,312..
'To all 'wkom it may concern.
Be it known that we, WARD J. SHELDON
- and CHARLES H. ALLEN, citizens of the
United States, residing' at Electra, in the.
5 county of Wichita, State of Texas, have in-
vented certain new and useful Improve-
ments in Sucker-Rod or PullRod Cou-
plings; and-we do hereby declare the follow-
ing to be a full, clear, and exact description
10 of the invention, such as will enable others
skilled in the 'art to which it appertains to
make and use the same.
This invention relates to an improvement
in couplings and is directed more -particu-
15 larly to a coupling for securely connecting
together those sections of rod or pipe which
- when assembled constitute what 'is known as
the "pull rod' in well drilling operations.
An object of the present invention resides
20 in the provision of a coupling of this char-
acter wherein the elements thereof may be
conveniently connected ' and disconnected,
means of novel arrangement being provided
for releasably securing the coupling in as-
25 s'embled position.
With the above and other objects of simi-
lar nature in view, the invention consists in
the construction, combination and arrange-
ment of parts, set forth in and falling with-
30 in the scope of the appended claims.
In the drawing:
Figure 1 is an elevational view of an as-
sembled coupling constructed in accordance
with the invention, one member of the cou-
35 pling being shown in section as indicated
by the line 1-1 of Fig. 3.
Fig. 2 is a longitudinal sectional view
therethrough.
Fig. 3 is a transverse section taken on the
40 line 3-3 of Fig. 1, and,
Fig. 4 is a fragmental perspective view of
the coupling with the locking member with-
drawn, -
Fig. 5 is a section taken on the line 5-5
45 of Fig. 2,
Fig. 6 is a fragmental perspective view
of one member of the coupling, and
Fig. 7 is a fragmental perspective view of
another member Of the. coupling.
50 Referring now more particularly to the
drawing there is shown at 5 and 6 the ad-
jacent ends of two sections of a pull rod
said ends being provided with my improved
coupling which is designated generally at 8.
55 Specifically the coupling 8 consists of the
separible elements 9 and 10 which are car-vied respectively by the sections 5 and 6, the
element 9 being of cylindrical formation
and provided with a longitudinally extend-
ing bore 11. Provided in the bore 11 are 60
a plurality of spaced circumscribing series
of lugs 12 the longitudinal side faces of
which are tapered or beveled inwardly as
shown at 13 on radial.lines.
The element 10 of the coupling is ,of a 65
diameter to pass freely into that portion of
the bore of the element 9 inwardly of the
lugs 12. and is exteriorly provided with a
plurality of spaced circumscribing series of
lugs 14 corresponding to the lugs 12 and 70
having their longitudinal faces bevled or
tapered similarly thereto as shown at 15.
In connecting the elements 9 and 10, the
latter is inserted into the former in such
manner that the lugs 14 will enter and piss 75
through the spates 12a between the lugs 12,
the elements being then rotated relatively to
each other to bring the lugs 14 behind and
in alinenient with the lugs 12. This con-
struction constitutes in effect a bayonet joint 80
or connection, the spaces between adjacent
lugs in a series corresponding to the slot of
such connection and those between each se-
ries of lugs corresponding to the transverse
slot of the connection, while the lugs 14 cor- 85
respond to the pins or lugs of the connec-
tion. It is evident that when so interlocked
the elements 9 and 10 will be held positively
against relative longitudinal movement.
In order to secure the coupling elements 90
against relative rotation and consequent
disconnection there is slidably engaged upon
the element'10 a sleeve 16 which is split
longitudinally as shown at 17 for the re-
ception of a guide rib 18 fixed to the ele-. 95.
ment 10, the sides of the split engaging
those of the rib so that rotation of the
sleeve with respect to the element 10 will
be prevented. Formed integrally with the
sleeve 16 -and extending longitudinally 100
therefrom toward the lugs 14 are a plurality
of spaced fingers 19a, 19b, W1 the longitudi-
nal faces of which are beveled as at 20 to
enter the spaces 12a between the lugs 12
and the .spaces 14 between the lugs 14 when !06
the same are disposed in alinement as above
described, the fingers passing into -.said
spaces as clearly shown in Fig. 2 and posi-
tively preventing entry of the lugs thereinto,
so that relative rotation of the elements is 110
in consequence impossible.
While not essential to the effective oper-1,305,311.
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Reference the current page of this Patent.
Sheldon, W. J. & Allen, C. H. Fuel Rod Coupling, patent, June 3, 1919; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth1258862/m1/2/?q=%22%22~1: accessed June 26, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.