Pump-Jack. Page: 3 of 3
[1], 2 p. : ill. ; 23 cm.View a full description of this patent.
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811,114
face of the member 26, and held in place by
clamp-nuts 44 45 upon the threaded ends of
the rods. By this means the walking-beam
26 is firmly supported at the point where the
5 greatest strains occur, while at the same time
the friction is limited to the metal rods 41 42
and the metal ears 39 40. By this arrange-
ment it is obvious that a very strong and
compact device is produced, efficient in ac-
10 tion, easily assembled and operated, and
which may be readily applied to any size or
form of pump.
Having thus described the invention, what
is claimed is-
z 5 1. In a device of the class described, a ver-
tically-supported stud, a beam mounted for
horizontal rotation upon said stud near the
ground or other base upon which the device
operates, spaced vertical standards carried
20 by said beam and provided with shaft-bear-
ings, a shaft mounted for rotation in said
bearings and spaced above said beam, a
combined traction and carrier wheel connect-
ed to the outer end of said shaft and bearing
25 upon said base, means connected to the in-
ner end of said shaft for transmitting motion
therefrom, means for connecting a draft ap-
pliance to said shaft and extending forwardly
therefrom, and a driver's seat connected to
30 said beam and extending rearwardly thereof,
whereby the weight of the operator is utilized
to prevent torsional strains being imparted
to the beam.
2. In a device of the class described, a ver-
35 tically-supported stud, a beam.mounted for
horizontal rotation upon said stud near theground or other base upon which the device
operates, spaced vertical standards carried
by said beam and provided with shaft-bear-
ings, a shaft mounted for rotation in said 4o
bearings and spaced above said beam, a
combined traction and carrier wheel connect-
ed to the outer end of said shaft and bearing
upon said base, means for connecting a draft
appliance to said shaft and extending for- 45
wardly therefrom, a driver's seat connected
to said beam and extending rearwardly
therefrom, a supporting-post spaced from
said stud, a cap member carried by said post
and having spaced ears, a pivot-pin disposed 50
transversely through said ears, a walking-
beam mounted for vertical movement upon
said pin, a clamp-plate bearing upon said
walking - beam above said pivot - pin, V-
shaped clamp-bolts engaging said pivot-pin 55
between said ears and walking - beam and
passing through perforations in said clamp-
plate, nuts engaging said bolts and bearing
upon said clamp-plate, connecting means be-
tween one end of said walking-beam and said 6o
shaft whereby the rotation of the shaft is
caused to reciprocate the walking-beam, and
means for coupling a pump-rod to the other
end of the walking-beam.
In testimony that I claim the foregoing as 65
my own I have hereto affixed my signature
in the presence of two witnesses.
FRANCIS M. YORK.
Witnesses:
B. H. JOHNSON,
S. E. LANFORD.p
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York, Francis M. Pump-Jack., patent, January 30, 1906; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth510468/m1/3/: accessed June 23, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.