Pipe-Bending Machine. Page: 3 of 3
[1], 2 p. : ill. ; 23 cm.View a full description of this patent.
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i,47G,442
change sutliciently to defeat the bending of
the pipe in an irregular curve. It is ap-
parent that by adjusting the members 11
one in advance ofj the other through the
5 agency of the pins 14 and the apertures 15,
bends of various curvature may be had.
For propelling the rack bar 4 and shap-
ing or bending the pipe, a hand lever 22 is
pivoted on a headed pin 23 passed trans-
10 versely therethrough and supported in the
rear ends of arms 24 extending .from the
top of the base 1 to which they are bolted.
The lower end of the lever is bifurcated and
pivotally receives a dog 25 engaging the
15 teeth 5 of the rack bar. By swinging the
lever the rack bar is driven forward and
retained by a pawl 26 pivoted on the for-
ward side of the base and engaging the rack
teeth. Flexible connections 27 and 28 re-
20 spectively are attached to the dog and the
pawl and secured as shown. - The dog and
pawl may be conveniently raised by these
connections when it is desired to move the
rack bar rearward.
25 When it is desired to shape a pipe the
fulcrum members 11 are swung and ad-
justed to the position deemed necessary to
produce the desired shape and the keepers
17 and.18 swung so. that the pipe may be
30 placed- in the jaws 6 and 17, the rack bar
4 having previously been moved to the
proper position. After the keepers are ad-
justed and fastened, the hand lever 22 is
swung whereby the rack bar 4 is moved
35 forward. The jaws 17 form fixed fulcrum
points on which the pipe is fulcrumed as it'
is bent by the forward movement of the
bar 4. In this way the desired shape is
produced.
40 This machine is more especially adapted
foi shaping pipes of large diameters such
as are used for oil. and water wells, but it
may be used for bending various sizes of
pipes and other objects.
45 The parts of the machine are made 6om-
paratively heavy to stand the strain and
rough usage.
Headed pins and removable fastenings as
specified are employed so that the machinemay be expeditiously and easily taken apart 50
and assembled incidental to its transporta-
tion from place to place.
What I claim is:
1. In a pipe shaping machine, a base, a
shaping member movable longitudinally on 55
the base, a pipe receiving member mounted
on the forward end of the said member,
fulcrum members pivoted on the base, ful-
crum jaws hinged on the forward ends of
the fulcrum members, and keepers hinged 60
and fastened to the fulcrum jaws, said
jaws and keepers having beveled pipe re-
ceiving faces.
2. In a pipe shaping machine. a base, a
rack, bar slidable longitudinally, a hand 65
operating lever having a dog. engaging in
the teeth of the rack bar, a jaw fixed on the
forward end of the rack bar, a keeper
hinged to the jaw, fulcrum bars pivoted at
each side of the base and between which the 70
rack bar is disposed, fulcrum jaws having
ears hinged in the forward ends of the ful-
crum bars, and keepers. hinged on the ful-
crum jaws.
3. In a pipe shaping machine, a base, a 75
rack bar shdable longitudinally, a hand
operating lever having a dog engaging in
the teeth of the rack bar, a jaw fixed on the
forward end of the rack bar, a- keeper
hinged to the jaw, fulcrum bars pivoted at 80
each side of the base and between which the
rack bar is disposed, fulcrum jaws having
ears hinged in the forward ends of the ful.
crum bars, and keepers hinged on the ful-
crum jaws, the fulcrum jaws and keepers 85
having beveled pipe receiving faces and the
beveled face of one jaw being inclined rela-
tively away from the beveled .face of the
other jaw and the beveled faces of the keep-
ers of said jaws being correspondingly op- 90
positely inclined.
In testimony whereof I have signed my
name to this specification in the presence of
two subscribing witnesses. .
CALEB C. RUTLEDGE.
Witnesses:
TAYLOR GAULT,
OsCAR ParILIP.
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Rutledge, Caleb C. Pipe-Bending Machine., patent, November 25, 1913; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth858501/m1/3/: accessed July 1, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.