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Патент USA US2411733

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Nov. 26, 1946.
H. c. KEMMERLIJN
2,411,733 _
TUBING EXPANDING TOOL
I Filed May 51, 1944
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INVENTOR.
ATI'D R N EYB
Patented Nov. 26, 1946
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2,411,733
UNITED STATES PATENT -» i ,oFFicE"
2,411,733
TUBING EXPANDING TOOL
Henry C. Kemmerlin, Tryon, N. 0.
Application May 31, 1944, Serial No. 538,126
1 Claim. (CI. 81-51)
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The invention relates to a tool and more espe
cially to an expandingtool for stretching or ex
in accordance with the invention, and hereinafter
panding purposes.
set forth'in detail.
.
The tool A comprises a pair of levers l0 and l I,
The primary object of the invention is the pro
respectively, each having a handle end l2 which
vision of a tool of this character, wherein the jaw
is of straight formation, and of required length.
ends of the same have ?tted therein work appli
The levers l0 and II converge toward each other
cators of special construction, so that the work
from the innermost portions of the handle ends
can be properly engaged for the expanding or
l2, then are reversely angled thereto at the ends
stretching of the latter, the tool being of forceps
opposite and remote from the said handle ends
or plier type for hand operation thereof.
10 I2, to provide outwardly divergent jaws l 3.
Another object of the invention is the provision
The lever l0 next to its jaw I 3'and partially
of a tool of this character, wherein the same is
extended into the latter has a bifurcation l4 lon
designed for use in expanding tubing or a carrier
gitudinally directed therein, while the lever H
therefor with the jaws of the said tool constructed
so as to enter tubing or apertures in elastic mate
rial and be forced apart by pressure on the
handles, thereby enlarging the size of the aper
ture and allowing a convenient connection with
' a centered narrow elbow portion I6, which inter
Figure 5 is a sectional view taken on the line
5--5 of Figure 3 looking in the direction of the
on a tubing or carrier therefor as before stated.
next to its jaw l3 and partially extended into the
latter has in the outer faces recesses l5 providing
?ts the bifurcation M, the latter being also're
versely elbowed at 11 to the elbow portion [6.
another tube or carrier.
,
The elbowed portions l6 and I‘! are pivoted to
A further object of the invention is the provi 20 gether by a pivot bolt l8 for swingingly connect
sion of a tool of this character, which is simple
ing the levers with each other for the swinging of
in construction, thoroughly reliable and e?icient
the jaws l3 toward and away from one another.
in operation, strong, durable, readily and easily
This pivot bolt I8 is located at the crotch of the
handled, the work applicators being removably
elbows l6 and I‘! of the levers Ill and II, respec
?tted, and comparatively inexpensive to manu 25 tively.
facture.
Formed in the tips of the jaws l3 are sockets
With these and other objects in view the inven
[9 for reception of the studs 20 of the work appli- V
tion consists in the features of construction, com
caters 2|, these having outer half-rounded outer
bination and arrangement of parts as will be
side faces 22 conforming to the inner diameter
hereinafter more fully described, illustrated in the 30 and shape of a tubing or apertures therefor, the
accompanying drawing, which shows the pre
studs 20 being removably secured in the sockets
ferred embodiment of the invention, and pointed
l9 by set screws 23 tapped in the sides of the
out in the claim hereunto appended.
jaws I3 at one side thereof.
In the accompanying drawing:
The lever II has ?tted thereto an adjustable
Figure 1 is a side view of the tool constructed
stop screw 24 which is adapted to contact with
in accordance with the invention.
the base of a socketed stop 25 formed in the other
Figure 2 is a fragmentary end view of the same.
lever I0, so as to limit the throw of the said levers
Figure 3 is a fragmentary inner face view of
when pressed toward each other at the handle
one of the jaws of the tool.
ends [2 thereof, so as to regulate the separation
Figure 4 is a view similar to Figure 3 of the 40 of the jaws l3 when manually operating the tool
other jaw of the tool.
for expanding or stretching purposes in operating
The spreading of the jaws I3 is had by separat
ing the handle ends l3 in the manual operation
Figure 6 is a side view of the jaw for inter?tting 45 of the tool as will be apparent, due to the con
with the other jaw shown in Figure 5 of the
nection of the levers l0 and II as has been set
arrows.
,
tool.
1
Figure '7 is a sectional view taken on the line
1-—1 of Figure 1' looking in the direction of the
arrows.
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7
Similar reference characters indicate corre
forth.
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From the foregoing it is thought that the con
struction of the tool and its manner of operation
50 will be clearly understood, and therefore'a more
extended explanation has been omitted.
sponding parts throughout the several views in
What is claimed is:
the drawing,
A tool of the kind'described comprising a pair
Referring to the drawing in detail, A designates
v.of levers having handle ends of straight forma
generally the tool in its entirety as constructed 55 tion which converge toward each other from the
2,411,733
3
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innermost portions of the handle ends, are then
reversely angled thereto at the ends opposite and
remote from said ends to provide outwardly
divergent jaw ends, one of the levers having a
jaw 'ends of said levers, work applicators having
studs, movably ?tting the sockets in said levers,
said work applicators having half rounded outer
longitudinally directed bifurcation therein, the
' with relation to the studs, means for retaining
other lever being reduced for inter?tting the bi
furcation, said levers being formed with reversely
elbowed portions at their point of inter?tting, a
pivot bolt connecting the levers for opening and
side faces formed thereon at a position off-center
said studs in said sockets and a limit screw ?t
ting one of the levers and engaging the other
lever for regulating the separation of the work
applicators on actuating the levers.
closing movement relative to each other in said 10'
elbow portions, sockets formed in the forward
HENRY C. KEMNIERLIN.
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