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Патент USA US2122338

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June 28, '1938.
A. COHEN
2,122,338
SHUTTLE FOR LOOMS
Filed Jan. s, 1935
3 Sheets-Sheet 1
June 28, 1938..
A. COHEN
2,122,338
SHUTTLE FOR LOOMS
Filed Jan. a, 1933
SSheets-Sheet 2
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June 28, 1938.
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A. COHEN
‘
2,122,338
SHUTTLE FOR LOOMS
Filed Jan. 6.. 1935‘
s Sheets-Sheet s
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2,122,338
Patented ‘June 28, 1938 ,
PATENT OFFICE
UNITED STATES
2.122.338
SHUTTLE FOB LOOMS
7
Abraham Cohen, Amsterdam, Netherlands
Application January .8, 1933, Serial No. 650,566
In Germany January 11, 1932
17 Claims.
(Cl. 139—196)
The invention relates'to a special construction
of shuttles for looms as well as to the construc
tion of the bobbins and holding spindles of such
produced by the spindle is made of a cross-sec
tion assimilated to the shape of the shed.
The conversion of 8. round bobbin into a ?at
mum‘ space which can be accepted 'lor the shed in
the case of a loom, only very scantily, and conse
quently also permit only a bobbin having e quan
bobbin with the old of the shuttle spindle may
according to the invention be e?ected simply by
placing the bobbin on the spindle if the elongated
cross-section of the spindle is of such dimen
sions that the cross-section of the body of the
tity of yarn, which is slight in proportion to this
yarn on the bobbin is stretched into the desired
shuttles.
.
The ordinary loom shuttles ?ll up the maxi
10 shed-space, to be accommodated in the shed.
This defect is, according to the lnvention, reme
died in a simple manner ‘by the loom shuttle be
ing approximated in its cross-section to the size
of the shed. The maximum degree of approxima
tion results, moreover, it the cross-section of the
shuttle is conformed also in its shape to the shape
elliptic or other ?at shape merely by being pushed 18
on. The spindle may also be composed of two or
more parts which are movable relatively to one
another and which on being swung to and fro
bring about an alteration of the cross-section of
the spindle, a feature which is well known per so
of the shed-it being shop-eel preferably in the
form of a trapezoid.
,
With such a. shuttle approximated to the shed
20 in size and, if desired, in shape, it is possible to
accommodate in the shecl~spece which is present,
and which in some circumstances can be angu
lerly widened, e, materially greater quantity of
yarn and consequently to attain a considerable
5 extension oi the running time of the shuttle and
as o. moons for attaining o. ?rmer adherence of
the bobbin on the spindle, and moreover the
transformation oi the bobbin may according to
the invention be effected in an especially con
venient and reliable manner by the swinging mo
tion of the ports of the spindle helmF mode full
use of for this object. Fox-‘this purpose, according
to the invention, the alteration of the cross-sec
tion of the spindle having two or more ports on
the letter being swung tooncl fro extends over
such a. great extent of the spindle and is made to
be of such a great amount that the body of yarn
correspondingly o.- reductlon of the number of
shuttle-changes. On the other hand it is possi
‘ple in the case of the given quantity of yarn, to on e bobbin mounted on the swung out spindle is
accommodate this quantity in e, shed having a positively converted ‘by the swinging-in move
smaller angle than hitherto. These favourable ment into a shape flatter relatively to its initial
effects may according to the invention be fur“ cross-section. The spindle may moreover be suit
ably so mounted in the shuttle that the greater
ther materially increased by there being em
played for the shuttle not the ordinary round diameter of the list cross-section given to the
bobbin but o, bobbin-the body of the yarn on a‘cobble. lies approximately in the direction of the
which is conformed to the shape of the shed by middle of the shed.
The relative movabillty of the parts of the spin- '
having an elongated cross-section. It is advan
togeons so to shape the cross-section of this flat die during the swinging movement may accord
bobbin that it ?lls up as extensively as possible ing to the-invention be attained by means of ec
the shuttle assimilated to the shape and to the centrics whereby considerably spread angles be
tween the parts of the spindle can readily be at 40
4. size of the shed.
Such ?at bobbins can be obtained from round tained, as is necessary for an alteration of the
cross=sectlon of the spindle trenslorming a body
of yarn. An extraordinarily simple and effective
tion of round into ?at bobbins can according to , form of- construction of a multiple-part spindle
according to the invention ls produced by the
a the invention be in an especially simple manner
facilitated, when a holding spindle is employed, ' parts of the spindle being freely displaceable rel
by said holding spindle being turned to account atively to one another at their outer ends and be
bobbins by changing them by winding or by
changing them by presslne. The transforma
as means for this object. For this purpose the ~ ing mounted'iirelatlvely to one another at their
other ends in such a. manner that on the spindle
spindle is according to the present invention
given such an elongated shape in cross section
that the body of yarn of a round bobbin put on
it is converted positively into a ?at shape. This
elongated cross-section of the spindle may con~
form to the shape of the shed and for example may be of an oval shape, so that the ?at bobbin
being swung in its : cross-section assumes the 50
shape corresponding to the desired shape of the
?at bobbin.
'
,
~
Moreover it is odvantageous {or the accommo
(lotion, in the loom ~sl'mttle, of the swinging mech
anism of a spindlev which is capable of being
2
2,122,388
swung in and out, to provide the back or front in order to'enable the bobbin to be placed more
walls of the shuttle according‘ to the invention ‘readily on the spindle, or, in order, as for ex
with an opening for the passage therethrough of ample Fig. 2 shows, that the shape of the spin
the spindle and to permit the passage in and dle may be suited tothe form of the tube of the
out of the parts of the spindle to take place in a bobbin. The bobbin d is in the ?rst place wound
plane transverse to said back or front wall. In as a round bobbin, for example, on a cardboard
that way a spreading apart of the parts of the tube of a. circumference equal to the elliptic
spindle can be attained in a simple way in a di
cross-section of the spindle e and automatically
rection approximately parallel to the bottom of becomes ?attened on being pushed on to the
10 theshuttle or in the direction of the middle of
spindle e.
10
the shed. There is also obtained the advantage,
According to Fig. 3 the shuttle a is approxi
compared with the otherwise usual introduction mated not only in size but also in shape to the
of the spindle through the upper side of the shut
shed b, 0, its cross-section possessing the shape of
tie, that the yarn is better protected by the upper a trapezoid ?lling up the shed as much as is
15 side of the shuttle, which can be closed ‘entirely
practically possible. The shuttle-spindle c has
or to a great part and is reliably prevented dur
a cross-section which is suited to the triangular
ing theweaving operation from protruding from shape of the shed and the longitudinal centre
' the shuttle.
line of which coincides with the centre-line x—y
The bobbin which is to' be put on the divided of the shed and said cross-section determines
20 or undivided spindle may be wound upon an in
the corresponding oval cross-section of the bob 20
ner tube of cardboard or other material by bin d mounted “on said spindle. The flat bob
means of which it is placed on. the spindle. But bin d makes the most favourable use of the avail--~
itmay also be‘ made without such an inner‘ tube.
able interior space of the shuttle a and conse
Also. in the vcase of a shuttle which does not
possess a, divided or undivided spindle, 9. bob
quently also of the shed ‘and it is consequently»
bin with an inner tube
well as a bobbin with
out such an inner tube c n be used in the man
ner of the invention.
'
The drawings illustrate the loom shuttle ac
30 cording to the invention by way of example in
several constructional forms. Fig. 1 shows in
crossnsection a rectangular shuttle with a hold
able to contain a considerable quantity of yarn.
The bobbin d may both in the case of Fig. 2 and
in ‘that of Fig. 1 also be made without an inner
cardboard tube and be put on the spindle e.
Moreover the spindle e may be independent of
the shuttle and not be inserted‘ in the latter
until after the bobbin has been put on.
According to Figsn‘i to 6 the spindle of the
ing spindle which is elliptic in cross-section and
shuttle I consists of three. parts 2, 3, 4 of which
Fig. 2 is a representation of adetail of this spin
dle. Fig. 3 illustrates inlcross-section a shuttle
which is constructed in the shape of a trapezoid
other and taper towards their external ends to
a point, the middle part 4 tapering inwards.
and has a holding spindle of oval cross-section.
Figs. 4, 5 and 6 show in part sectional front and
the two outer parts 2, 3 are similar to one an
The middle part 4 is revoluble about the pivot
pin 5 mounted in the shuttle casing I, while the
two side parts 2, 3 of the spindle are guided, with
side elevation and in cross-section a loom shut
40 tie with a multiple=part holding spindle, the
4 the aid of the pins l2, l3 connected to them, on
parts of which ar‘evdisplaceable relatively to one
arc-shaped slots v22, 23fin the shuttle-casing I
another by means of eccentrics. Figs.- 7 and 8
reproduce in front and side elevation a shute
tle liiiewise provided with a multiple-part spin
die, in the case of which shuttle the relative dis
and are displaceable at their inner ends along
the eccentrics 32, 33 mounted ?xedly on the
placement of the parts of the spindle is effected
by means of a wedge. Figs. 9, 10 and 11 show in
stationary pivot-pin 5. The three spindle parts
2, 3, 4 are held together at their outer ends-by
means of a, cap 6 put on them.
The eccentrics
45
32, 33 have a curved contour line, the curvature
front and side elevation and in cross-section a‘ radius, of which decreases progressively from the
further constructional form of a loom shuttle ' vertical line to the horizontal line and the spin
having a spindle which is variable vin ‘cross-sec
dle parts 2, 3 are in the form of wedges decreas
tion when swung to and fro, in the case of which ing in their cross section towards their outer 50
spindle this variation in cross-section is brought ends while the spindle part '4 is formed as a.
about merely by means of a special relative po
wedge increasing in its cross section towards its
sition of the points of oscillation of the parts of’ outer end. Consequently the spindle parts 2, 3,
when the spindle is. swung about the pivot pin
55 the spindle. Figure v12 shows in cross-section a
loom shuttle used as means ‘for transforming a
body of yarn of a round bobbin into a‘ ?at bob
bin.
,
'
5 in the shuttle l out of the swung-out position 55
indicated in Fig. 5 in dotted lines into the posi
tion represented in full lines, become shifted out
wards relatively to the middle part 4 and there
by positively transform the cross-section of the
'According to Fig. 1 the shuttle a is approxi
mated to the size ‘of the shed, which is formed
60
by the warp threads 12, c between which a certain‘; spindle-compare Fig. 6—from a‘ contour-line
angle is formed, by its cross-section having the permitting a round bobbin 1, 9 to be pushed on
shape of an elongated rectangle, which fills out‘ I loosely practically over the whole length of the
spindle, into the ?at shape 8 suited to the shut
‘ the shed to a much greater extent than a shut
tle. This is accomplished because the eccen
65 tie a1 of the usual dimensions, which are-indi
65
cated in dotted lines. The yarn body (1 of the trics 32 and 33, during the swinging movement
bobbin accommodated in this shuttle a possesses
an elliptic cross-section which utilizes the cross
section of the shuttle and consequently the shed
70 space to a more favourable extent than the or:
from dotted line to full line position, move the '
parts 2 and 3 away from the shaft 5 while the
part 4 isheld a constant distance from said
shaft so that the parts 2 and 3 are wedged apart
dinary round bobbin d1, shown in dotted lines, by theirlongitudinal movement of the part 4.
When a spindle is providedfor In this manner by simply swinging the spindle
holding the ?at bobbin it said spindle also is ' 2, 3, 4 into the shuttle ii the round bobbin 9 can
elliptic in cross-section. This spindle e may .be transformed positively into the ?at bobbin
76 have a cross-section tapering towards one tend’v ID. The swinging ‘oi’ the spindle in and out takes
’ in its shuttle a1.
3.
greases
place in this case through the upper wall ll of
the shuttle.
'
'
v In the case of the arrangement according to
Figs. '1 and 8, of the three parts i5, I8, I‘! which
5 taper towards their outer ends the two outer ones
l5, H are revoluble about a pivot pin l8 which
' is ?xedly mounted in the shuttle I and on which
a corresponding shape. Further, when spindles
having two or more partsare employed, the rel
ative motion of these parts. by means of which
motion the transformation of the bobbins is
brought about, can also be attained without
swinging the spindle by changing the‘ relative
position of the parts of the spindle by means of
an eccentric i9 is ?xedly mounted by means of inserted wedges or similar means or merely by
which the middle part it of the spindle guided
Finally, in the case of tubular cops or in general
10 with the aid of the pin 20 in a. slot 2} in the
shuttle casing is shifted relatively to the outer in the case of bobbins without, interior tubes and
parts 15, ll of the'spindle when the latter is with thread'unwound from the interior of the
swung in and out. By means of this shifting of bobbin, the transformation of the cross-section
the middle part it the outer parts l5, ll of the of the body of yarn may be attained, without
spindle,
which are connected together hymeans ‘having recourse. to a holding spindle, simply by
15
displacement.
of springs 2d, 24', are so spread apart when the
~
-
/
10
the interior of the shuttle, which serves to house
the yarn, possessing an elongated cross-section
able alteration of the cross-section of the spindle, ' as shown in Fig. 12 where the cross section of the
which alteration extends over the whole length shuttle 38 possesses the shape of a trapezoid and
of the spindle, a round bobbin put on said spindle by the body of yarn being converted, from an 20
in its swung out position is transformed posi~ initial diameter exceeding the width 'or height of
, spindle is swung into the shuttle, that by a suit
tively into a hat bobbin.
In the case of the weaving shuttles according
to Figs. 9 to ii the spindle consists of two parts
as, it the outer ends of which are freely displace
able relatively to one another and moreover are
held together by means of a cap 2‘! accommo
dated on one part 25, while the inner ends of
these parts 25, '26 are mounted with the aid of
39
this cross-section, as indicated in Fig. 12 by the
dotted circle 38" into a shape approximating for
example the shape of the shuttle, as indicated ,in
Fig. 12 by the contour line Ml, by being forced 25
into the interior of the shuttle.
I claim:
1. A shuttle for looms comprising a casing hav
ing an opening in one side, a. spindle consisting
fixed axles 355'. 35, about which the whole spindle
oi-taperingly arranged parts movable longitu
can be swung in and out through the back wall 26
oi’ the shuttle. The two axles at, it: are arranged
in such relative positions in the shuttle that the
porting means in the shuttle at one end of the
angle formed between the parts 2%, 2d of- the
spindle is increased when the spindle is swung into
the shuttle and consequently the round bobbin 2%
pot on the spindle in the swung out position of
the latter is positively converted into the ?at
bobbin
=
‘
The plane in which the parts 2%,
of the
spindle are swung may be parallel to the bottom
surface 33 of the shuttle or coincide ‘with the
central plane ZiJ-JEZ‘ oi’ the shed or the parts 2d,
of the spindle sltuated‘in ‘the middle plane
XM-Y of the shed be arranged on a‘ special car-=
rier
which itself is capable of swinging paral»
lel to the bottom 8% or? the shuttle and is indicated
in
ii in dotted lines. Moreover the parts
of the spindle which are movable relatively to
one another may, if the spindle is capable of
being removed completely item the shuttle, be
arranged even separately from the shuttle for
dinally one with respect to another, spindle sup
3,0
spindie and supporting the spindle for swinging
movement at its free end into and out of the
casing through the opening, said spindle support 35
ing means including means causing longitudinal
movement of the spindle parts relative to each
other during swinging movement and thereby
causing lateral spreading of the spindle parts as
they are swung into the casing, and a cap carried
by the free end oi’ one of the spindle parts and
enclosing the free end‘loi the spindle to hold the
parts together.
'
'
2. A shuttle for looms comprising a casing hav
ing; anopenlng in one side, o. spindle consisting of
a pair of members converging uniformly toward
each’ other from end to end and contacting at
their point 01” convergence. spaced pivot niernberu
‘in the casing parallel to the open casing side
and having the spaced ends of the spindle mem
bers mounted thereon, and a cap on the free end
oi‘ one of said spindle members and engaging over
example, on a separate support, and be intro- the free end of the other spindle member to
duced into the shuttle after the bobbin has been hold said free ends from spreading.
3. A shuttle for looms comprising a casing have
‘put on and been transformed, any sort of bold
ing or clamping means whatever being provided inc; an opening in one side, a shaft ?xed across
one end of the casing parallel to the open casing
i’or this purpose.
.
Y
side,
a spindle member of bluntly wedge shape
The flattened bobbin may be provided ‘for in
the shuttle not only parallel to the surface oi’ and having its smaller end pivoted on the shaft
to swing at its free and through said opening, a 60
68 the bottom of the shuttle or in the direction of
the central plane of the shed but also in another pair of spindle members supported against the
sides of the ?rst mentioned member for sliding
direction, i'or example, in any direction, lying be
tween these two planes. Also, the swinging ‘move
ment can take place in each ‘of these directions.
65 The direction in which the ?at bobbin lies in the
shuttle, must notdetermine the direction of the
swinging out movement. Moreover the divided or
the undivided spindle may according to the in
vention instead of being employed for converting
78 round into fiat bobbins also be otherwise em
ployed for transforming the yarn-bodies of bob
bins, for example, in order to convertan angular
bobbin cross-section into a cross-section limited
in shape by curves, for which it is merely neces
75
sary for the cross-section of the spindle to be of
movement longitudinally thereof, and to swing
[with said ?rst mentioned member as the latter
swings on the shaft, and means for effecting 65
longitudinal movement of the pair of members on
the ?rst mentioned member as the latter swings.
4. A sl'iuttle for looms comprising a casing hav
ing an opening in one side, a shaft ?xed across
one end of the casing parallel to the open casing 70
side, a spindle member of bluntly wedge shape
and having its smaller end pivoted on the shaft
to swing at its free end through said opening, a
pair of spindle members supported against the
sides of the first mentioned member for sliding
75'... 1
.4,
2,122,988
movement longitudinally‘ thereof, and to swing
' body of yarn which ‘is at right angles to the
elongated cross-sectional part of the yarn.
10. A device for ?attening the shape of a body .
of yarn ofa round bobbin for loom. shuttles, com
prising a rod as a holding spindlefor bobbins hav
centrics engaging the adjacent ends of the pair ing an elongated cross-section, and a body of yarn
of members and shaped to cause movement of the . of a round bobbin having .an interior diameter
pair'of members towards the larger end of the smaller than the width of the cross-section of
?rst mentioned member as the latter is swung the rod, the said bobbin being transversely'dis- '
into the casing.
_
torted by reason of the elongation of the said rod. is
5. A shuttle for looms comprising a casing hav
11. A device for ?attening the shape of a’ body
ing‘an opening in one side, a. shaft ?xed across of yarn. of a round bobbin, particularly of a loom
one end of the casing parallel to the open casing shuttle or the like, comprising a rod as a hold
side-a spindle member of bluntly wedge ‘shape ing spindle for the body of yarn, said spindle
and having its smaller end pivoted on the shaft ‘having a cross-section of-greater width than
to swing at its free end through said opening, a height, the said spindle being operative when a
pair of spindle members tapered in a direction body of yarn is pushed upon it to distort the
opposite the taper of the ?rst mentioned member’ round body of yarn and form it 'into a body hav
and supported against the sides of the ?rst men
ing greater width than height.
_
tioned member for sliding movement longitudi
12. In an expansible spindle for loom shuttles 20
with said ?rst mentioned member as the latter
" swings on the shaft, and a pair of eccentrics ?xed
to said shaft on opposite sides of the pivot con
nection of the ?rst mentioned member, said ec
ll)
nally thereo?and to swing with said first men
comprising at least two parts movable relatively
tioned member as the latter swings on. the shaft, one to the other, a body of yarn of a bobbin hav
and means for e?ecting longitudinal movement - ing an interior hollow space applied to the spindle,
of the pair of members on the ?rst mentioned and means for laterally spreading said movable
member as the latter swings.
_
’
parts to a width greater than- the width of the in
6. A shuttle for looms comprising a casing hav
terior hollow space of the body of yarn of the
ing an opening in one side, a shaft ?xed across bobbin to be applied thereto whereby to ?atten
one end of the casing parallel to the open casing said body of yarn.
,
25
side, a spindle member of bluntly wedgev shape
'30 and-having.
its smaller end pivoted on the shaft
13. A device for ?attening the shape of a body
of yarn of a round bobbin, particularly for loom 30
.to swing at its free end through said opening, a shuttles and the like, consisting of a round body
pair of spindle members tapered _in a direction 'of yarn having a tubular interior cavity and of
opposite the taper of the ?rst mentioned member
and supported against the sides of the first men
tioned member for sliding movement longitudi
nally thereof, and to swing with said ?rst men
tioned member as the latter swings on the shaft,
and a pair of eccentrics ?xed to said shaft on
opposite sides of the pivot connection of the ?rst
40 mentioned member, said eccentrics engaging the v
adjacent ends of the pair of members and shaped
to cause movement of the pair of members to
ward the larger end of the ?rst mentioned mem
ber as the latter is swung into the casing.
7. A method for transforming the shape of a
round body of yarn of ‘a bobbin, particularly for
loom shuttles, consisting in applying the body of
a holding spindle for the said body of yarn‘ con
stituting a wedge-shaped element capable of be- ,
ing introduced into the tubular cavity of the body 35
of yarn, and distorting the said round body of
yarn transversely to ?atten it.
14. A shuttle for looms, said shuttle comprising
a holiowed'casing having a width greater than its
height, one wall .of ‘said, casing being formed to 40
provide an opening therein, a. spindle for said
shuttle, said spindle comprising a pair of separate
and substantially identical members arranged
substantially side by side in said casing and piv
otally secured thereto for swinging movement to 45
and fro through said opening, the outer side
edges of said members being straight, means
yam to a spindle, said spindle comprising a , whereby swinging of said members outwardly of
plurality of sections and having a ?at cross-sec
said casing brings them into juxtaposition to pro
50 tion and moving the sections of the spindle to vide a- spindle of reduced diameter to permit the
50'
increase the distance between the outer edges ot application of an oversized cylindrical cop of yarn
the sections engaging the yarn thereby trans
thereto, said cop having a diameter greater than
forming the round body of yarn into a bobbin of 1 the height of said casing, said means also causing
‘greater width than height.
said spindle members to move apart in a horizon
‘
8. A method for transforming the shape of a
round body of yarn of a bobbin, particularly for
loom shuttles, into a bobbin wider than its height,
consisting in applying a round body of yarn to a
sectional spindle, in separating the sections of‘ the
60
spindle to spread the yarn transversely of the
direction of movement of the shuttle in its travel
through a shed, and simultaneously reducing the
dimension of the bobbin in a direction at right
angles to the aforesaid spreading movement. '
tal plane throughout substantially their entire 55
lengths as they are swung into said casing where
by to cause the straight outer sides of said spindle
to stretch said cop laterally into a ?attened cop‘
having a height less than the height of said
casing.
-
60
15. A device for ?attening a body of yarn of a
round bobbin and for holding the same, particu
larly for loom shuttles, comprising a spindle, con- -
sisting of at 'least‘two parts, means for. mount
-9. A method of transforming the shape of a' ing the parts for movement longitudinally one 65
round body of yarn of a bobbin, particularly for . with respect to the other and for simultaneous
loom shuttles, into a ?at cross-section, consisting _ oscillatory movement, a body of yarn of a. round
in applying the bobbin to a’ spindle having a ?at bobbin, and (means for subjecting the movable
cross-section greater than the diameter of the
70 tubular interior cavity of the round bobbin over ' parts of the spindle when swung in one direction
to a lateral spreading to a width greater than the
at least apart of the spindle" length, the said interior diameter of the round body of yarn of
:spindle being operative'upon'application of the the bobbin applied thereto to ?atten the same
bobbin thereto to transform-the round cross-sec-' 'until'theheight t ereof is not greater than that
tion of. the bobbin of yarn into a ?at cross-section, of the shuttle.
.\
>
75 : thereby reducing the dimension .of the» round
a; 16. A deviceyfforgggttening a rotmd body of yarn?” "
65
‘amazes
‘
'
of a round bobbin and for holdinil the same, par
of yarn oi’ a mimobobbm and for holding the
same. particularly for loom shuttles, comprising a
spindle, consisting of at least two parts, means for
na'lly one with respect to the other and mounted" mounting the parts for oscillatory movement,
for to and fro movement. a body 01’ yarn of a means for causing the movable parts of the spin-:
round bobbin to be ?attened being applied to the dle to include an angle varying with the oscilla
said spindle, and means whereby the swinging tory movement of the-parts and attaining at one
ticularly for loom shuttles, comprising a spindle,
consisting of at least two parts movablelongitudiv
movement of the spindle parts when. moved in one
direction operates to spread the spindle parts‘ to
10
a degree greater than the internal diameter of
the round body of yarn operated upon to‘?atten
the same until the height thereof is not greater
thanthat oi the shuttle.
‘
17. A device for ?attening the shape of a body
end position of the oscillation maximum value
determining a triangle area larger at the base
than the interior base diameter of the body‘ of 10
yarn applied to the spindle to .?atten the same
until the height thereof is not greater than that
of the shuttle.
.
a
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