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Патент USA US2127862

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Aug. V22., 1938.
2,127,862
E. C. GEBS
LINE STRETCHER
Filed Aug. 16, 1957
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ERNEST C. 6555
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ATTORNEY5
Patented Aug. 23, 1938
2,127,862?
UNITED STATES PATENT OFFICE
2,127,862
LINE STRETCIIER
Ernest Christian Gebs, New York, N. Y.
Application August 16, 1937, Serial No. 159,383
9 Claims. (Cl. 24-126)
This invention relates to improvements in line tate movement of the ring l5, upright projec
stretching devices and more particularly to im
tions 20 are provided in the rider element, where
provements in self-tightening devices adapted by the ring is more readily gripped by the hand
to receive ropes, wires and the like and hold of the operator. The inner synclined faces of
same in substantially ?xed engagement.
the V-shaped element are provided with dove
It is among the objects of the present invention tailed slide elements 22 and 23 adapted to en
to provide a device for gripping lines whereby gage with corresponding slide ways in the mem
the line will be ?rmly held and the ?rmness bers 24 and 25, whereby said members are per
of the grip will be proportionally increased as the mitted free movement relative to the arms of
110- tension on the line is increased.
It is another feature of the device according
to the present invention that it provides means
whereby the line, though ?rmly held, can be in
stantly and easily released from its engagement
15 with the clamping device.
It is another feature of the device according
to the present invention that it is composed of
relatively few moving parts, is simple in con
struction, and economical in manufacture.
The invention will be fully and comprehen
sively understood from a consideration of the
following detailed description when read in con
nection with the accompanying drawing which
forms part of the application.
In the drawing:
Fig. 1 illustrates the device according to the
present invention in one of its applications.
Fig. 2 is an elevational view of the device ac
cording to the present invention.
Fig. 3 is a top plan view of the device illus
trated in Fig. 2, with one arm broken away to
illustrate certain details of the device; and
Fig. 4 is a vertical sectional view of Fig. 2,
taken along the line 4-4.
The device according to the present invention
comprises a V-shaped member, generally indi
cated at H], having two arms II and I2 formed
integral therewith and having a hooked head
portion, generally indicated at l3. The member
40 ill is preferably made of material having sub
stantial resilience, such as steel and the like,
whereby the arms Ii and I2 can be disposed at
different relative distances from each other by
exertion of an altering force but, when the force
45 is removed, the arms will resume their normal
relationship. The arms H and I2 are tapered
so that their greatest thickness is towards the
free ends and the rider ring I5 is disposed around
said arms and adjacent the tapered surface there
50 of, whereby movement of the ring along the arms
from the point Where the arms are united, causes
the ends of the arms to move nearer each other.
The movement of the ring along the arms is re-
stricted by the stops l1 and I 8 formed in the
55 arms and abutting against the ring. To facili
the V-shape. The elements 24 and 25 are formed 10
with ring-like structures 28 in the upper pori
tions thereof adapted to receive and engage with
the ring [5 whereby movement of the elements
is transmitted to the ring and vice versa. Ser
rations are provided on the surfaces of the mem
bers 24 and 25, substantially as indicated at 35,
in order to facilitate gripping of lines disposed
15
therebetween. The head of the V-shape is pro
vided with a plurality of hook elements 30 and
3 l, the element 30 being cut in one portion there
of to present claw-like surface 32, substantially
as shown in Figs. 2 and 3.
In use, the line to be gripped is disposed be
tween the serrated sliding members 24 and 25
and the arms H and I2 moved toward each other 25
insofar as possible. Under these conditions, the
serrated sliding elements will grip the line and
tension on the line will move said elements out
wardly from the point where the arms of the
V are united, thereby moving the ring [5 along 30
the tapered surfaces of the arms H and I2 and
forcing them more closely toward each other.
Under these conditions, the greater the tension
on the line, the greater will be the force with
which the arms of the V-shape will be moved 35
toward each other, and accordingly the more
?rmly will the line be held. It is notable that
due to the high mechanical advantage provided
by machines of the type of the inclined plane, the
force required to be exerted upon the ring ele 40
ment in order to ?rmly grip the line is relatively
less than would be required in other machine
structures. When the line has been gripped as
aforesaid, the hook members 30 or 3| can be
placed in engagement with a ?xed support there 45
by maintaining the line in a stretched position.
For example, referring to Fig. 1, the line 40 sub
stantially ?xedly attached at the point 4'! is
stretched from the catenary 42 to the taut posi
tion as indicated by utilizing the device H) as
hereinbefore described and after having been so
stretched, the hook 3| on the device is placed
over the stationary hook 45, whereby the line
is maintained in taut position instead of in the
catenary 42.
.
>
5.5.
2,127,862
2
It will be apparent to those skilled in the art
that the device hereinabove described can be
used in stretching all manner of lines such as
wires, cables, ropes, clotheslines and the like.
It will also be apparent to those skilled in the
art that the head l3 can be varied to provide
other engaging means than hooks for attach
ing the device to stationary support.
It is to be understood that this improvement
is capable of extended application and is not con
10
fined to the exact showing of the drawing nor to
the precise construction described and, there
fore, such changes and modi?cations may be
made therein as do not affect the spirit of the
invention nor exceed the scope thereof as ex
pressed in the appended claims.
What is claimed is:
1. A device of the type described comprising
a V-shaped structure having a pair of rela
tively movable extended arms, an annular mem
ber circumscribing and abutting against the arms
of said structure and movable thereupon, the
opening in said annular member being of prede
termined and unvarying size whereby movement
of said member along said arms causes the free
ends thereof to move relative to each other,
slide guides formed on the inner faces of the
arms, members slidable on said guides having
30
gripping faces and ring-like structures formed
in a part thereof adapted to receive and engage
with the said annular member, whereby objects,
when gripped between said sliding members and
moved outwardly relative to the V-shaped struc
ture, cause the annular member to be advanced
along the surfaces of the arms thereby causing
35 the jaws to grip the objects more tightly and
vice versa.
2. A device of the type described comprising a
V-shaped structure having a pair of relatively
movable extended arms, an annular member cir
40 cumscribing and abutting against the arms of
said structure and movable thereupon, the open
ing in said annular member being of predeter
mined and unvarying size whereby movement of
said member along said arms causes the free ends
45 thereof to move relative to each other, slide
guides formed on the inner faces of the arms,
outwardly relative to the V-shaped structure,
cause the annular member to be advanced along
the tapered surfaces of the arms, thereby caus
ing the jaws to grip the objects more tightly
and vice versa.
4~ A device of the type described comprising a
V-shaped structure having a pair of resilient
extended arms, said arms being tapered whereby
they are largest farthest from their place of
union, an annular member circumscribing and 10
abutting against the arms of said structure and
movable along the tapered faces thereof, the
opening in said annular member being of prede
termined and unvarying size whereby movement
of said members on the tapered surfaces causes 15
the free ends of the arms to move relative to each
other, slide guides formed on the inner faces of
the arms, members slidable on said guides having
gripping faces and ring-like structures formed
in a part thereof adapted to receive and engage
with said annular member whereby objects, when
gripped between said faces and moved outwardly
relative to the V-shaped structure, cause the
annular member to be advanced along the
tapered surfaces of the arms, thereby causing the 25
jaws to grip the objects more tightly and vice
versa., and a head formed on the V-shaped struc
ture at the place of union of the arms.
5. A device of the type described comprising a
V-shaped structure having a pair of resilient ex
tended arms, said arms being tapered whereby
they are largest farthest from their place of
union, an annular member circumscribing and
abutting against the arms of said structure and
movable along the tapered faces thereof, the 35
opening in said annular member being of pre
determined and unvarying size whereby move
ment of said members on the tapered surfaces
causes the free ends of the arms to move rela
tive to each other, dove-tail in cross section slide 40
guides formed on the inner synclined faces of
the arms and disposed in substantially the plane
of movement of the annular member, members
slidable on said guides having gripping faces and
ring-like structures formed in a part thereof 45
adapted to receive and engage with said annular
member whereby objects, when gripped between
members slidable on said guides having gripping
faces and ring-like structures formed in a part
thereof adapted to receive and engage with the
50 said annular member, whereby objects, when
gripped between said sliding members and moved
outwardly relative to the V-shaped structure,
said faces and moved outwardly relative to the
V-shaped structure, cause the annular member to
be advanced along the tapered surfaces of the 50
arms, thereby causing the jaws to grip the objects
cause the annular member to be advanced along
the surfaces of the arms thereby causing the
55 jaws to grip the objects more tightly and vice
versa, and a head formed on the V-shaped struc
ture at the place of union of the arms.
3. A device of the type described comprising a
of the arms.
V-shaped structure having a pair of resilient
60 extended arms, said arms being tapered whereby
they are largest farthest from their place of
union, an annular member circumscribing and
abutting against the arms of said structure and
65
movable along the tapered faces thereof, the
opening in said annular member being of prede
termined and unvarying size whereby movement
of said members on the tapered surfaces causes
the free ends of the arms to move relative to
each other, slide guides formed on the inner faces
70 of the arms, members slidable on said guides hav
ing gripping faces and ring-like structures
75
formed in a part thereof adapted to receive and
engage with said annular member whereby ob
jects, when gripped between said faces and moved
more tightly and vice versa, and a head formed
on the V-shaped structure at the place of union
6. A device of the type described comprising a 55
V-shaped structure having a pair of resilient
extended arms, said arms being tapered where
by they are largest farthest from their place of
union, an annular member circumscribing and
abutting against the arms of said structure and
movable along the tapered faces thereof, the
opening in said annular member being of pre
determined and unvarying size whereby move
ment of said members on the tapered surfaces
causes the free ends of the arms to move relative 65
to each other, dove-tail in cross section slide
guides formed on the inner synclined faces of the
arms and disposed in substantially the plane of
movement of the annular member, members slid
able on said guides having serrated gripping faces
and projecting ring-like structures formed in a
part thereof adapted to receive and engage with
the said annular member whereby objects, when
gripped between the serrated faces and moved
outwardly relative to the V-shaped structure,
2,127,862
cause the annular member to be advanced along
the tapered surfaces of the arms, thereby caus
ing the jaws to grip the objects more tightly and
vice versa, and a head formed on the V-shaped
structure at the place of union of the arms.
7. A device of the type described comprising a
V-shaped structure having a pair of resilient ex
tended arms, said arms being tapered whereby
they are largest farthest from their place of
union, an annular member circumscribing and
abutting against the arms of said structure and
movable along the tapered faces thereof, the
opening in said annular member being of pre
determined and unvarying size whereby move
15 ment of said members on the tapered surfaces
causes the free ends of the arms to move relative
to each other, dove-tail in cross section slide
guides formed on the inner synclined faces of the
arms and disposed in substantially the plane of
movement of the annular member, members
slidable on said guides having serrated grip-ping
faces and projecting ring-like structures formed
in a part thereof adapted to receive and engage
with the said annular member whereby objects,
when gripped between the serrated faces and
moved outwardly relative to the V-shaped struc
ture, cause the annular member to be advanced
along the tapered surfaces of the arms, thereby
causing the jaws to grip the objects more tightly
30 and vice versa, and a head formed on the V
shaped structure at the place of union of the
arms, said head having elements such as hooks
and the like formed thereon adapted to engage
ment with supporting means.
3
8. A device of the type described comprising a
V-shaped member having a pair of relatively
movable extended arms, an annulus circumscrib
ing and abutting against the arms of said member
and movable thereupon, the opening of said an 5
nulus being such that movement thereof along
said arms causes the free ends of said arms to
approach each other, a gripping element slid
ingly mounted on the inner'face of each of said
arms, attached to and movable in conjunction
with said annulus, whereby objects, when gripped
between said elements and moved outwardly rela
tive to the V-shaped member, cause the annulus
to be advanced along the exterior surfaces of the
arms whereby the gripping elements engage ob 15
jects positioned therebetween more tightly and
vice versa.
9. A device of the type described comprising a
V-shaped member having a pair of relatively
movable divergent arms, a laterally slidable grip
ping element mounted on the inner face of each
of said arms: near the free end thereof, a ring
like member positioned circumjacent said V
shaped member and attached to and movable
with each of said sliding elements, said ring-like 25
member being of lesser internal diameter than
the external width of said V-shaped member
whereby sliding movement of said elements away
from the place of union of said arms causes said
arms to move toward one another and vice versa. 30
ERNEST CHRISTIAN GEBS.
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