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Патент USA US3053289

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Sept. 11, 1962
G. F. LEAGUE
3,053,284
MEANS FOR INTERCONNECTING THE HARNESSE s AND TREADLES on A LOOM
Filed Sept. 29, 1960
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INVENTOR.‘
ATTORNEYS
United States Patent 0 " ice
3,®53,2?4
George F. League, P.O. Box 125, Greenville, S.C.
Filed Sept. 29, 1960, Ser. No. 59,407
5 Claims. (Cl. 139—88)
Patented Sept. 11, 1962
2
1
MEANS FOR INTERCONNECTING TIE HAR
NES?ES AND TREADLES ON A LOOM
31,653,284
having an improved jack stick connector which is adapted
to surround and slide along the smooth jack stick and
which connector is provided with locking means movable
into penetrating engagement with the jack stick to lock
the connector in adjusted longitudinal position along the
jack stick.
It is another object of the present invention to pro
vide an improved interconnecting means between the
This invention relates generally to an improved means
harnesses and treadles on a loom which is economical
for interconnecting the harnesses and treadles of a loom
and more particularly to an improved jack stick and 10 to produce, simple to connect in adjusted position and
jack stick strap having improved jack stick connector
which has a long useful life.
It is a more speci?c object of the present invention
means which may be secured in various longitudinal po
to provide an improved interconnecting means for the
sitions along the jack stick whereby a Single type of
harnesses and treadles of a loom in which the locking
jack stick may be utilized in any treadle position of the
15 means comprises a threaded member which is threadably
loom.
supported in the jack stick connector and the threaded
Most jack sticks currently in use are manufactured
to receive and support the upper end of the jack strap
at a single position longitudinally thereof. Thus, a mill
must maintain a stock of jack sticks for operation with
each treadle position of the loom because any particular
jack stick will only operate in one treadle position. In
member is movable into penetrating engagement with
the jack stick.
It is another speci?c object of the present invention to
provide an improved interconnecting means of the type
described above in which jack stick strap positioning
means, in the form of a plurality of spaced apart drilled
some cases, it is possible to reverse the ends of the jack
holes, is provided along the jack stick to receive the
stick and make the jack stick operate in two treadle
threaded member carried by the jack stick connector.
positions, however, the mill must still maintain an in
Some of the objects of the invention having been
ventory of jack sticks for several treadle positions, de 25
stated, other objects will appear as the description pro
pending upon the number of treadle positions on the
ceeds, when taken in connection with the accompanying
looms in use ‘in the mill.
drawings, in which
It has been proposed in U.S. Patent No. 2,951,507
FIGURE 1 is a perspective ‘fragmentary view of the
to provide means for interconnecting the harnesses and
treadles of a loom by utilizing a jack stick which has a 30 central portion of a loom illustrating the improved jack
plurality of upstanding projections spaced longitudinally
sticks and jack stick straps positioned in operative po
therealong. In this patent the upper end of the jack strap
sition to interconnect the harnesses with corresponding
is provided with a connector which is movable longi
treadles;
tudinally along the jack stick and has an opening therein
for positioning on any one of the upstanding projections.
FIGURE 2 is an enlarged fragmentary isometric view
of the central portion of one of the improved jack sticks
shown in FIGURE 1 and showing the jack stick connector
of the improved jack strap locked in adjusted position in
one of the drilled holes spaced along the jack stick;
The upper end of the jack strap‘ is held in position on
the projection by a locking cam member which is en
gageable with the lower surface of the jack stick when
the jack strap is in perpendicular relationship to the jack
stick. Although this arrangement permits a single type
FIGURE 3 is a transverse vertical sectional view
through the jack stick connector and the jack stick,
being taken substantially along the line 3—3 in FIGURE
of jack stick to be used in any of the treadle positions
on the loom, the upstanding projections on the jack stick
2;
FIGURE 4 is a fragmentary isometric view similar to
present obstacles which tend to collect lint and the like,
which may interfere with the operation of other parts 45 FIGURE 2 but showing a modi?ed form of jack stick
connector which is locked in position on a jack stick
of the loom and which prevent storage of the jack sticks
which does not have spaced apart drilled holes therein;
in close proximity to each other. Also, the locking cam
FIGURE 5 is a vertical sectional view through the
member is positioned on the upper end of the turnbuckle
modi?ed form of jack stick connector and jack stick,
end of the jack strap and in order to release the jack
strap for longitudinal movement along the jack stick, 50 being ‘taken substantially along the line 5—5 in FIGURE
4.
the turnbuckle end must be pivoted and brought sub
Referring to FIGURE 1, a perspective fragmentary
stantially parallel to the jack strap.
view of the central portion of a loom is shown ‘to illus
With the foregoing in mind, it is a primary object
trate the improved means for interconnecting the har
of the present invention to provide improved means for
nesses 10 with corresponding treadles 11 of the loom.
interconnecting the harnesses and treadles on a loom
The loom is provided with a front girt 12 which supports
which includes an improved jack stick and jack stick strap
which may be secured to the jack stick in any one of a
plurality of longitudinal positions along the jack stick
a treadle shaft bracket 13 which in turn supports a treadle
shaft 14 on which the forward ends of the treadles 11 are
oscillatably supported. Spaced apart middle girts 16 and
whereby a single type of jack stick may be employed
in any of the treadle positions of the loom, thereby re 60 17 are suitably supported at their forward ends on the
front girt 12 and at their rear ends on a back girt 18.
quiring the purchase of only a single type of jack stick
The lower ends of bearing members 20 and 21 are
by the mill.
suitably supported ‘on the respective middle girts 16 and
It is another object of the present invention to pro
17 and their upper ends rotatably support a harness cam
vide an improved means for interconnecting the harnesses
and treadles on a loom which includes an improved jack 65 shaft 22. Rotation is imparted to the harness cam shaft
stick having a relatively smooth exterior surface which
22 in a conventional manner, not shown, through a gear
24 to impart rotation to a plurality of harness cams 25
is free of any outwardly extending projections which
which engage and oscillate corresponding treadles 11 in
might interfere with the operation of other parts of the
timed relationship to operation of the loom.
loom and which might collect lint and the like.
It is another object of the present invention to pro 70 A plurality of jack straps, broadly indicated at 30, are
connected at their lower ends to the treadles 11 and their
vide means for interconnecting the harnesses and treadles
upper ends are connected to corresponding elongated
on a loom which includes an improved jack stick strap
3
3,053,284
jack sticks 32. Opposite ends of the jack sticks 32 are
connected to opposite ends of the lower frame member
of corresponding harnesses 10 by a plurality of jack
hooks 33.
The parts heretofore described are conventional parts
of a loom and the present invention is primarily con
cerned with improvements in the connection between the
jack straps 30 and jack sticks 32. Although the loom
4
URES 4 and 5 which may be utilized to lock the upper
end of the jack strap in adjusted position on a jack stick
32’. Since the parts shown in FIGURES 4 and 5 are simi
lar to corresponding parts shown in FIGURES 2 and 3,
similar parts will bear like reference characters with the
prime notation added.
In FIGURES 4 and 5, it will be noted that a threaded
member 45' is threadably mounted in an internally
threaded nut 46’ which is suitably secured to the bridging
shown has four treadle positions it is to be understood
that the present invention may be used with looms having 10 portion 38’ of the connector 35’ in any suitable manner,
any number of treadle positions. It will be noted in
such as by welding. Rotation of the threaded member
FIGURES 1, 2 and 3 that the upper end of each jack
45’ will move the inner end thereof inwardly or out
strap 30 is provided ‘with jack stick connector means in the
wardly of the connector 35’, depending upon the direction
form of an inverted U-shaped jack stick connector mem
of the rotation imparted thereto.
ber 35 having opposed legs 36 and 37 which are connected 15
In FIGURES 4 and 5, it will be noted that the upper
together at their upper ends by a bridging or rbight por
edge of the jack stick 32’ is smooth and does not have
tion 38. The lower ends of opposed legs 36 and 37 of
any holes drilled therein. In order to lock the connector
the jack stick connector member 35 are suitably secured
35’ in the desired longitudinal position along the jack
to the upper portion of the jack strap 30 in any suitable
stick 32', an operator may slide the connector 35' along
manner. The connector member 35 surrounds the sides
the jack stick 32’ until it is in the proper position to be
and upper portion of the jack stick 32 and the lower por
disposed in vertical alinement above the treadle 11 to
tions of the legs 36 and 37 of the connector member 35
which it is to be connected and then rotate the threaded
are offset by bends 41 (FIGURE 3) which engage the
member 45' until its inner end engages and penetrates
lower edges of the jack stick 32 to limit upward move
the upper surface of the jack stick 32’. When the inner
ment of the connector 35, relative to the jack stick 32. 25 end of the threaded member 45’ penetrates the upper
It is preferred that the connector 35 have relatively free
surface of the jack stick 32’, as shown in FIGURE 5,
sliding movement longitudinally along the jack stick 32.
the connector 35' will be locked in longitudinal position
The lower portion of the jack strap 30, below the con
on the jack stick 32’.
nector 35, may be of any well known type. In the present
From the foregoing description, it will be seen that
instance the pack strap 30 includes an upper turnbuckle 30 a relatively simple and versatile means for interconnect
end 39 which is pivotally connected as at 40 to the legs
ing the harnesses and treadles on a loom has been pro
of the connector 35 and the lower end thereof is thread
vided whereby a single type of jack stick may be utilized
ably connected to the .‘upper end of a turnbuckle 42 (FIG
in any of the various treadle positions on the loom.
URE 1). The upper end of a lower turnbuckle end 43
In the drawings and speci?cation there has been set
is threadably connected to the lower end of the turnbuckle 35 forth a preferred embodiment of the invention and, al
42 and the lower end thereof is bent to form a treadle
though speci?c terms are employed, they are used in a
receiving portion.
generic and descriptive sense only and not for purposes of
In order to lock the connector 35 in the desired longi
limitation, the scope of the invention being de?ned in the
tudinal position along the jack stick 32, the connector 35
claims.
is provided with a threaded member 45 (FIGURES 2 40
I claim:
and 3) which threadably penetrates an internally threaded
1. Means for interconnecting the harnesses and treadles
rivet 46 l?xed in a hole in the bridging portion 38 of the
on a loom having a plurality of elongated jack sticks con
connector 35. Rotatation of the threaded member 45
nected at opposite ends to corresponding harnesses, a
in one direction will cause the inner end thereof to move
plurality of spaced apart treadles positioned beneath the
inwardly between the legs 36 and 37 of the connector 35
medial portions of said jack sticks, and a plurality of
and rotation of the threaded member 45 in the opposite
direction will cause the inner end thereof to move out
wardly from between the legs 36 and 37 of the connec
tor 35. When the threaded element 45 is removed or
its inner end is moved outwardly, the connector 35 will
be free to slide longitudinally along the jack stick 32.
In order to aid in aligning the jack strap with the proper
treadle 11, the jack stick 32 may be provided with jack
stick strap positioning means in the form of a plurality
of spaced apart holes 50 (FIGURE 2) drilled in the upper
surface of the jack stick 32. The holes '50 are spaced to
correspond with the spacing between corresponding
vertically disposed jack straps connected at their lower
ends to said treadles, said interconnecting means com
prising a jack stick connector secured to the upper ends
of each of said jack straps and surrounding the medial
portion of corresponding jack sticks, said jack sticks each
having a plurality of spaced holes therein in overlying
relation to said treadles, and a threaded member threada
bly supported in each of said jack stick connectors and
having an inner end penetratingly engaging one of the
holes in said jack sticks to positively lock said connectors
against longitudinal movement along said jack sticks.
2. Means for interconnecting the harnesses and treadles
treadles 11. Although only four holes 50 are shown, it
on a loom having a plurality of elongated jack sticks con
is to be understood that the jack stick 32 may be pro
vided with any number of holes, depending upon the 60 nected ‘at opposite ends to corresponding harnesses, a plu
r-ality of spaced apart treadles positioned beneath the
number of treadles 11 on the loom and the holes 50
medial portions of said jack sticks, and a plurality of ver
will be spaced apart to correspond to the spacing of the
tically disposed jack straps connected at their lower ends
treadles 11.
to said treadles, said interconnecting means comprising
The connector 35 may be locked in the proper treadle
position on the jack stick 32 by centering the connector 65 inverted U-shaped members having the bight portion
thereof engaging the upper surface of the jack sticks and
35 over the proper hole 50 and then rotating the threaded
member 45 to cause the inner end thereof to move into
the legs thereof extending downwardly from the bight
the drilled hole 50 beneath the connector 35 (FIGURE
portion on opposite sides of the jack sticks and secured
3). With the inner end of the threaded member 45 pene
adjacent their lower ends to the upper ends of each of
trating a hole 50 in the jack stick 32, the connector 35 70 said jack straps, said jack sticks each having a plurality
and the jack stick strap 30 will be securely held on the jack
of spaced holes therein in the upper surface in overlying
stick 32 and positioned in proper alinement above the
the holes in said jack sticks to positively lock said con
corresponding treadle 11 to which the lower end of the
relation to said treadles, and a threaded member thread
jack stick strap 30 is connected.
ably in the bight portion of each said U-shaped members
A modi?ed form of connector 35' is shown in FIG 75 and having an inner end penetratingly engaging one of
3,053,284
5
6
nectors against longitudinal movement along said jack
threaded rivet is ?xed in the opening and matingly re
sticks.
ceives said threaded member.
5. In ‘a structure according to claim 3 in which said
3. A jack stick connector for use in looms having elon
tion of the jack sticks and to be slidable therealong, said
bridging portion has an opening therein and an internally
threaded nut is welded to said bridging portion to support
said threaded member for passage through the opening in
U-shaped member having a pair of legs and a bridging
said bridging portion.
gated jack sticks, said connector comprising an inverted
U-shaped member adapt-ed to surround the medial por
portion connecting the legs, a threaded member thread
ably mounted in said bridging portion, and said threaded
member having an inner end which is movable inwardly 10
and outwardly between said legs with rotation of said
threaded member and adapted to penetratingly engage
the surface of the jack stick to positively lock the con
nector against movement therealong.
4. In a structure according to claim 3 in which said
bridging portion has an opening therein and an internally
15
References Cited in the ?le of this patent
UNITED STATES PATENTS
293,334
961,463
1,944,971
2,670,919
Kelly ________________ __ Feb. 12,
Robidoux ____________ __ June 14,
Emmons _____________ __ Ian. 30,
Esoldi _______________ _._ Mar. 2,
1884
1910
1934
2,951,507
McGuire et a1. ________ __ Sept. 6, 1960
1954
UNITED STATES PATENT. OFFICE
CERTIFICATE OF CORRECTION
September 11,, 1962 ‘
Patent No.i 3,053,284
George F. League
It is hereby oer tified that error appears in the above ‘numbered pat
ent requiring correction and that the said Letters Patent should read as
corrected below.
‘Column 4, line ,75,§ after "one of“ insert -— the holes in
said jack sticks to positively lock said con—» ——,
Signed and ‘sealed this 1st day of January 1963‘,
(SEAL)
Attest:'
ERNEST W. SWIDER
Attesting Officer
DAVID L. LADD
Commissioner of Patents
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