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Патент USA US2105578

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Jan. 18, 1938.
w. H. BAHAN
2,105,578
SHUTTLE BOX FOR LOOMS
Filed Sept. 30, 1935
4 Sheets-Sheet l
1 WILLIAM HBnHnN
Jan. 18, 1938.
w. H. BAHAN
2,105,578
SHUTTLE BOX FOR LOOMS
Filed Sept. 30, 1935
‘-
4 Sheets-Sheet 2
3mm!
WILLIAM H. BAHRN
8%
Mar’
Jan. 18, 1938.
- w. H. BAHAN
2,105,578
SHUTTLE BOX FOR LOOMS
Filed Sept‘. 30, 1935
4 Sheets-Sheet 4
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Patented Jan. 18, 1938
2,105,578
STATES PATENT OFFICE
2,105,578
SHUTTLE BOX FOR LOOMS
William H. Bahan, Greenville, S. 0.
Application September 30, 1935, Serial No. 42,914
4 Claims. (Cl. 139-186)
This invention relates to a shuttle box con
stick check thereby making it possible to eliminate
struction for looms and more especially to a
shuttle box equipped with means for frictionally
engaging the side of the shuttle as it is thrown
5 into the box and stopping it in the proper posi
tion, and therefore, dispensing with the usual
check strap. This invention makes it possible
for the shuttle to be properly located at the time
it is thrown into the box in proper contact with
10 the picker so that the impact delivered thereto
by the picker will be uniform.
In the conventional shuttle box the shuttle
enters the loom and rebounds a certain amount.
Since this rebound is not uniform, the impact or
15 blow delivered to the end of the shuttle by the
picker will Vary from time to time, thereby caus
ing a mis-pick, pick-outs and other imperfec
tions. By equipping one side of the shuttle box
with a movable lining which is normally adapted
to be engaged by the shuttle and by having an
eccentric pivotally mounted in one side of the
shuttle box for causing this movable lining to
engage the shuttle, it is possible to cause the
shuttle to stop- almost in the same position in the
25
shuttle box at each pick of the loom.
.
It is, therefore, an object of this invention to
provide a shuttle box for each end of the lay of a
loom having one side thereof equipped with a
movable lining for engaging the sides of the
30 shuttle as it enters the loom and means controlled
by the movement of the shuttle for producing
frictionv between the side of the shuttle and the
movable'lining. When the shuttle is thrown from
the shuttle box means are also provided for re
35 turning the movable lining to its original position
so that it will again be engaged by the shuttle
when it is thrown again into the shuttle box.
By using this movable lining together with the
eccentric as shown in the drawings, I have found
40 that it has been possible to operate the loom
at a much higher'rate of speed than was possible
by using the old type of shuttle box. This in
crease in the number of picks is due primarily to
the fact that the shuttle is'not allowed to re
45 bound a suf?cient amount in the box to mate
rially affect the operation of the picker, and there
fore, there need not be the appreciable pause now
present in looms to allow the shuttle to assume a
position of rest before the picker is operated.
50
.' It is a further object of this invention to pro
vide a' combined shuttle engaging means, for
maintaining the shuttle in the proper position in
the shuttle box, and a picker stick check. Not
only does this movable lining serve as a shuttle
55 engaging, means, but it also serves as a picker
the conventional check strap for this purpose.
It is a further object of this invention to pro
vide a shuttle box construction which has mount
ed in the pivotal binder on one side thereof, an
eccentric resilient cam for engaging the side of
the shuttle to maintain the same in its proper
position when it is thrown into- the shuttle box.
In this type of the invention no strap is used but
the action of the resilient leather covered eccen 10
tric is depended upon to produce the necessary
friction and prevent vibration of the shuttle to
insure the proper stability.
Another object of this invention is to provide a
shuttle box for each end of the lay of a loom 15
having one side thereof equipped with a mov
able lining for engaging the sides of the shuttle
as it enters the loom and means controlled by
the movement of the shuttle for producing the
friction between the sides of the shuttle and
movable lining, said means being adjustably se
cured preferably to the lay of the loom. By
adjustably securing the controlling means to the
lay of the loom a very stable construction is pro
vided, and the movement of the pivoted binder
as in the case of the other showing, does not
affect the frictional or the shuttle engaging means.
A still further object of the invention is to
provide a shuttle box construction comprising a
resilient eccentric cam mounted in an adjustable
bracket, said bracket being mounted on the lay
of the loom. This form is similar to another
form shown in the drawings with the exception of
the means for mounting the eccentric. In this
case the eccentric is mounted on an adjustable
bracket instead of being mounted in the pivoted
binder.
Some of the objects of the invention having
been stated, other objects will appear as the de
scription proceeds when taken in connection with
the accompanying drawings, in which:—
Figure 1'is a plan view of one end of the lay of a
loom showing the invention applied thereto;
Figure 2 is a rear elevation taken along line 2—2
in Figure 1;
Figure 3 is a transverse sectional view taken
along line 3-3 in Figure 1;
Figure 4 is an elevation taken along line 4-4
in Figure 1;
Figure 5 is a transverse sectional view taken
along line 5—-5 in Figure 1;
Figure 6 is a plan view of the right-hand por
tion of Figure 1 showing the shuttle removed
therefrom with the parts in a different position;
45
2
2,105,578
lining 3% extends to'the right, (Figs. 1 and 6),
Figure '7 is an isometric view of the pivoted
back binder of the box construction;
across slot liib and behind the picker I5 and has
one end thereof secured as at 44. to bracket 45,
said bracket 45 being secured to the lay cap l?a.
'
Figure 8 is an isometric View looking at the
back side of Figure 7;
Figure 9 is a plan view of another modi?ed
form showing the resilient eccentric cam ad
justably secured to the lay of the loom;
Figure 10 is a cross-sectional View taken along
line l5—l5 in Figure’ 9;
Figure 11 is a plan view of still another modi?ed
10
form;
15
and
'
'
When the shuttle l3, under the impact deliv
ered by the picker stick at the other end of the
loom, is driven to the position shown in Figure 1
the side adjacent the movable lining 39 is. caused
to engage the lining. The friction produced be
tween the lining and the side of the shuttle will 10
cause the eccentric 3‘! to rotate about its pivot
point 36. The greater the blow given to the shut
-
Figure 12 is an isometric view of the eccentric
cam and the adjustable bracket shown in Fig , tle I3 the more counter-clockwise rotation will be
caused in the eccentric 3'! thereby causing the
ure 11.
Referring more particularly to the drawings, friction of the lining 39 on the side of the shuttle
the numeral ill denotes the lay of a loom which 83 to be increased. Also when the shuttle en
has mounted on the upper side thereof a lay cap gages the picker and moves the picker against the
Hla. The lay cap supports the conventional box strap 39, increased force will be applied to eccen
front l I which, in turn, has secured to the inner tric 31 and the force of the moving shuttle will
side thereof a' strap of leather I2 for engaging positively move the eccentric and further grip the
the side of shuttle 23 when it isthrown into the shuttle. It is evident that after the picker l5
shuttle box. The lay cap lilo has a longitudinal engagesthe end of shuttle l3 and throws it from
slot l?b in the central portion thereof through the shuttle box, that the spring 4| will return the
which projects a picker stick. 14 having a picker eccentric 3'1 and its associated parts back to nor
mal position as shown in Figure 6.
E5 on the upper end thereof for delivering an im
By providing the resilient eccentric 31 in the
pact to the end of shuttle l 3 to cause the same to
pivoted member 18 the shuttle will engage the
be thrown to the other side of the loom.
The structure thus far described is conventional lining 39 and be immediately clamped in position
but it is thought necessary to makea showing of thereby eliminating the vibration or oscillation
of the shuttle which has heretofore taken place
this in order to e?'ectively disclose the present in
vention. Pivotally secured as at H is a back in the shuttle boxes. The strap 39 also serves as
a picker stick check since the backward move
piece or binder l8 which has securedv to approxi
mately one half of the free end thereof a leather ment of the picker stick will be resisted by the
lining 26. This lining 2b cooperateswith the lin
spring 4| and the friction of the strap on the
ing 52 to provide a lining for the shuttle box for
Figures 9 and 10 show another modi?ed form
receiving the shuttle l3. vSecured to the back
side of member i8 is a wearing member 21 such which is similar in many respects to the form
as leather, which is normally engaged by resilient shown in Figures 1 to 3 inclusive, and like refer
arm 22 said arm being pivotally secured as at 23 ence characters will apply to like parts. The
to a bracket 2a. In order to normally hold the principaldi?erence between these two forms is,
free end of arm 22 into engagement with member that in the present form the resilient eccentric
2! a torsion spring 25 is provided. This arm and cam 3'! is pivoted as at 80 to the upper portion of
its‘ associated parts are conventional, and serve to bracket 8!. The lower side of bracket 81 is ser
rated and is adapted to rest upon a serrated face
cause the back side wall of theshuttle box to en
gage the shuttle to produce a certain amount of of bracket 82 and is adjustably secured thereto
friction and resiliency.
_
by any suitable means such as stud bolts 83 which
In order to limit the pivotal movement of binder penetrate slots 84 in the outstanding leg of said
it about pivot point I‘! a bracket 30 is secured bracket 8| , It is seen that by mounting the
in the lay l0, said bracket having threadably se
bracket in this manner, instead of placing it in the
cured in the upper end thei'eofva bolt 3! with pivoted binder l8, that adjustment can be made as
a resilient tip 32 on the end thereof. The tip to the amount of friction desired and as to the
32 is held in the proper position by means of lock proximity of resilient eccentric cam 31 and lin
nut 33 and this tip serves to limit the outward ing 39 to. the shuttle to thereby control the fric
shuttle.
40
45
50
'
'
the torsion spring 25 has become weak the pivot
a1 movement of the binder 16 or a similar mem
her with which the arm 22 has’worked a greater
amount of outward rotation has been allowed
the wear on the binder will not be nearly so great
as it is when the binder contains the movable
than has been necessary thereby causing the
check lining'
60 shuttle is to vibrate in the shuttle box. Further
more, screw 3! insures proper friction being ap
I, _' 7.
Rotatively mounted as at 36 is an eccentric re
65 silient’cam Bl’ which has a covering 38, prefer
The other end of
45
50
' _
.
upon an adjustable bracket which is secured to
the lay of the loom. The cam 50 is pivotally
mounted as at 86 in the upper side of bracket
8| a. This bracket is similar in all respects to 65
bracket 81 with the addition of the projection 81
which extends laterally therefrom to which
spring 56 is normally secured. This spring con
tacts the cam 50 in the same manner as shown
and described in Figure 9. Likewise, in this
form, by having the cam on a stationary bracket
adjustably secured to the lay a more stable con~'
struction is provided and less wear is produced
which lining cooperates with lining ‘29 ion the ‘ onthe pivoted binder.
75 same side of the shuttle box.
40
Figure 11 is another modi?ed form in which the 60
resilientrcam '50 and leaf spring 56 are mounted
plied to the shuttle to properly and quickly box
ably made of leather, ?xed thereon. A movable
lining “is is secured intermediate its ends to the
eccentric cam 3'? asgatYliLand secured to one end
thereof is a tension spring’éll, the othervend of,
70 said tension spring being secured to the binder
Hi. This movable leather lining 39 extends
through an opening or recess 42 cut in the side of
binder IE to form a lining ior the shuttle box,
10 in
tion. By having the bracket fastened to the back
side of the lay it makes a very strong and stable 55
check and adjustment can be easily made. Also
pivotal movement of binder l3., Heretofore, when
the same.
20
'
- The eccentric 52, as appearing in Fig. 11, has 75
3
2,105,578
a leather cover 52, and the eccentric has secured
as at 53 a tension spring 54 which has its other
end secured as at 55 to the binder Hi. In order
to prevent the eccentric 50 from vibrating or
oscillating after the shuttle has been thrown
into the shuttle box, a leaf spring 56 is provided
which has one end thereof secured to brackets
81, with its free end frictionally engaging the
side of the eccentric. Leaf spring 56 and tension
spring 54 normally hold eccentric 50 in the dotted
line position when the shuttle is not in the shuttle
box. When the shuttle enters the shuttle box
the side of the shuttle engages portion 52 and ro
tates the eccentric to the bold line position. By
15 positioning leaf spring 56 in the manner shown,
it is evident that the further the shuttle enters
the box the greater resistance spring 56 will offer,
thereby causing the resistance to the travel of
the shuttle to be in direct proportion to the speed
20 thereof.
In the drawings and speci?cation there has
been set forth a preferred embodiment of the
invention, and although speci?c terms are em
ployed, they are used in a generic and descriptive
sense only and not for purposes of limitation, the
scope of the invention being set forth in the
appended claims.
I claim:
2. In a loom having a lay and a shuttle box
provided with a box front and a pivoted binder
and a picker, said binder having a transversely
disposed opening therethrough, a resilient ec
centric member mounted in said opening, ten
sion means normally holding the eccentric mem
her out of the path of the shuttle as it enters
the box, a lining secured to said eccentric mem
ber near one end thereof and extending along
the inner surface of the binder and traversing
the path of the picker and having its other end
secured to the lay, whereby engagement of the
lining by the picker will move the eccentric to
grip the side of the shuttle and stop the same.
3. In a shuttle box for looms having a box
front and a binder, a picker and picker stick for
arresting and expelling the shuttle received into
the box, an eccentric member disposed in one of
the sidewalls of the box, and a movable lining
for the shuttle box secured to and covering said
eccentric and extending rearwardly along one of
the sidewalls of the shuttle box and across the
path travelled by the picker and engageable by
the picker for moving the eccentric into engage
ment with the side of the shuttle for stopping a
the same.
4. In a loom lay having a shuttle box provided
with a binder and a box front forming a space
1. In a loom having a lay and a shuttle box
30 and a picker to receive the impact of the incom
for the reception of a shuttle, a picker and picker
stick mounted for reciprocatory movement in 30
ing shuttle and also to propel the shuttle out of
the shuttle box, said box having front and rear
sidewalls, one of the side walls having a recess
therein, an eccentric member mounted for rota
35 tion in said recess, a ?exible member secured to
said space, said binder having a recess therein, an
eccentric member mounted in said recess, a strap
secured to said eccentric and extending outward
ly along the sidewall of the binder and across
said eccentric and extending along the inner
surface of one of the side walls and having one of
its ends extending across the path of the picker
whereby engagement of the picker by the shuttle
the path travelled by the picker and picker stick
and being secured to the lay whereby the force
applied to the picker by an incoming shuttle will
move the eccentric to apply gradually increasing
pressure to the shuttle as it travels in the box.
40 will move the eccentric to exert pressure on the
shuttle to stop the same.
in
40
WILLIAM H. BAHAN.
CERTIFICATE OF CORRECTION.
Patent No, 2,105,578.,
January 18, 1928.
WILLIAM H. BAHAN.
It is hereby certified that error a ppears in the above numbered patent
requiring correction as follows: In the drawings, strike out Sheet 5; fig
ures 1h, 15, 16 and 17 should appear as figures 9, 10, 11 and 12 respec
tively; and in the heading to the drawings, line 3, for “L1. Sheets" read
5 Sheets; and that the said Letters Patent shouldbe read with these cor
rections therein that the same may conform to the record of the case in
the Patent Office‘,
.
Signed and sealed this 15th day of March, A. D. 1958.
Henry Van Arsdale,
(seal)
Acting Commissioner of‘ Patentq .
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