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Патент USA US2114226

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.April 12, 193g.
E. KATO
2,114,226 '
.DRAFT APPARATUS FOR FINE SPINNING# FRAMES'
Fi1ed Aug. 19, 193s
TTORNE Y.
2,114,226
Patented Api. I12, 193s
UNITED STATES PATENT oFFicE
2,114,226
IDRAFT APPARATUS FOR FINE SPINNING
FRAMES
Etsuro Kato, Tokyo-Shi, Japan
Application August 19, 1936, Serial No. 96,885
In Japan October 25, 1935
5 Claims. (Cl. 19-135)
spring to release the pressing action of the presser
This invention relates to certain vimprovements
saddles.
in draft apparatus for fine spinning frame of the or As
the draft apparatus are similarly but op
type in which a sliver moves vertically in the di
positely arranged with respect to the center of
rection of the‘axis of a spindle arranged in a the machine frame, description of the right-hand C
end need not be repeated for the left-hand end,
5 vertical direction.
The object of the invention is to provide a draft but it is to be noted that the arrangement for` the
apparatus of simple construction characterized by
left-hand side is shown in the drawing as being
in a position in which the pressing action of the
presser or saddle on the outer rollers is released.
The
accompanying
drawing
illustrates
an
em»
10
Fig. 2 shows a modification, in which the link I2
bodiment of the invention by way of example, in >is' pivotally mounted on a bracket I9 secured to
which:
the machine frame 9, .and no further description
Fig. 1 is a partial vertical sectional view of a ñne of other parts will be needed, as these are similar'
spinning frame showing one embodiment of the to corresponding parts in Fig. l.
15
`
15 invention.
According to the invention, each of the draft
Fig. 2 is a similar view to Fig. l, illustrating a ing apparatus arranged in opposition on either
modification.
side of the machine frame can be provided with an
reduction in size of the spinning frame and which
is more advantageous to spinning operation.
Referring to Fig. 1, the numerals I, 2, 3 and 4,
5, 6 and I', 2', 3' and 4'-, 5', 6' represent drafting
rollers respectively arranged in opposition on
individual presser, and consequently the drafting
apparatus on one side can be stopped when an
2 a either side of the machine frame 9, I0; ‘I and 1'
accident occurs, or if necessary during spinning
represent shafts secured to- the roller stand 8
mounted on the machine frame 9, Ill; II and II’
represent bell cranks pivotally mounted on the
tus on the other side. Furthermore, the pressing
force on the presser acts substantially in a hori
shafts ‘I and 'I' respectively.
'
The bell crank II is formed at the end of one
arm with a, hook on which one end of the press
operation, independently of the drafting appara
zontal direction, that is, a right-angled direction 25
to a vertical drafting direction. This is most
desirable in a drafting apparatus of a‘ vertical
type to ensure a smooth feeding of yarn and to
rod I5'of the presser or saddle I1 on the right
lessen accidents which may occur due to the
hand side is connected. To the end of the other breaking of yarn. Furthermore, the apparatus is 30
considerably simplified, and the size of the spin
30 arm of the bell crank is connected a manually
operated link I2 having a ball I8 and a stopper ning frame can be reduced, as the space, particu
I6 at the ends respectively. The ball I8 of the ` larly the space between two sides of the machine
link I2 is in engagement with a recess provided frame in a horizontal directioncan be reduced,at the lower end of a telescopic cylindrical case I3
the horizontal pressing action being derived from
in which a spring (not shown) is arranged. The a source vertically arranged in a direction of the
case I3 is also provided at the upper end with a vertical axis of the spindle in the same direction as
recess adapted to engage with a ball I4 secured the sliver. Still further, as the apparatus can
to the machine frame 9. In the position shown in easily be arranged so as not to extend into the in
Fig. 1, the spring in the case I3 will act to turn termediate space of the machine frame below the 40
'40 the link I2 in a clockwise direction, but the link
delivery rollers 3, 6 and 3', 6' shown in the draw
can not be turned, as the stopper I6 is in engage
ing, the cleaners of the delivery ?luted rollers 3
ment with the bell crank I I, and consequently the and 3' can be removed and replaced without inter
spring willbe in a compressed position. The bell
crank II will, therefore, tend to be turned _on the
shaft l by action of the spring, and the press
rod I5 will be tensioned substantially in ahori
zontal direction by the hooked end of one arm of
the bell crank, whereby the pressing action of the
presser at the right-hand side is accomplished.
C: G To release the tension of the presser or saddle, it
will be-suflìcient to turn the link I2 in a counter
clockwise direction, then the spring in the case I3
is released from its compressed position and the
55 -bell crank II is releasedfrom the action of theA
fering with the apparatus, advantageously to the
spinning operation.
'
45
Having now particularly described and ascer
tained the nature o_f my said invention and in what
manner the same is to be performed, I claim:
i
1. In combination with a fine spinning frame
in which the slivers are drawn vertically in rela
tion to the axes of vertically arranged spindles,
of a drafting apparatus comprising, in combina
tion, a roller stand secured to the frame, a ver
tically arranged inner row of feed rollers car
ried by the stand, a vertically arranged outer row ,55
2
2,114,226
of rollers carried by the stand, saddles bearing on
the outer rollers, a lever pivotally mounted on
the stand inwardly of said rollers, a rod connect
ing the saddles to said lever, spring means inter
posed between the stand and said lever, and an
operative connection between said spring means
and the lever, said connection comprising manu
ally operated means interposed between the lever
and the spring means and operable to transmit the
10 action of the latter to tension the saddles on the
outer rollers.
,
2. In a fine spinning frame according to claim
1,-in which the spring means interposed between
the stand and the lever and operatively connected
to said lever comprises, a pair of telescopic mem
bers, a compression spring interposed between the
members, one of the members being pivotally
mounted on the stand and the other member hav
ing an operative connection with said lever, said
20 operative connection comprising a manually oper
ated link interposed between the lever and said
other telescopic member and operable to compress
the spring to transmit the action'of the- latter to
tension the saddles on the outer rollers.
3. In combination with a ñne spinning frame
l in which the slivers are drawn vertically in rela
tion to the axes of vertically arranged spindles,
of a drafting apparatus comprising, in combina
tion, a roller stand secured to the frame, a verti
cally arranged inner row of rollers carried by the
stand, a'vertically arranged outer row of rollers
carried by the stand, a saddle bearing on the
outer rollers, a bell crank lever pivotally mounted
on the stand and disposed inwardly of the rollers,
“ said lever having vertical and laterally arranged
arms, spring means interposed between the stand
and the lateral arm of said lever and operatively
connected to the laterally arranged arm of the
lever, a rod connecting the saddle to the vertical
arm of the lever, said spring means comprising
a pair of telescopic members and a compression
spring interposed between the members, one of
said telescopic members being pivotally mounted
0n the stand, said operative connection between
the spring means and the lateral arm of the lever
comprising a manually controlled link interposed
between the other telescopic member and the
lateral arm of the lever and operative .to com
press> said spring and transmit the action of the
latter through said bell crank lever and rod con
nection to tension the saddle on the outer rollers. Gl
4. In a ñne spinning frame according to claim
3, in which the vvertically disposed arm of _said
bell crank lever is formed with a hook-shaped end
portion, and the rod connecting the saddle of the
outer rollers to said vertical arm is formed to 10
provide a releasable connection-with said hook
shaped end portion.
5. In combination with a ñne spinning frame
in which the slivers are drawn vertically in rela
tion to the axes of vertically disposed spindles 15
arranged on opposite sides of the frame com
prising, in combination, a roller stand secured to
the frame two sets of drafting apparatus carried
by the roller stand and disposed on opposite sides
of the frame, each of said drafting apparatus com
prising, a vertically arranged inner row of feed
rollers carried by the stand, a vertically arranged
outer row of feed rollers carried by the stand, a
saddle bearing on the outer rollers of each draft
ing apparatus, a bell crank lever for each of said
apparatus pivotally mounted on the stand in
wardly of the rollers and disposed adjacent to
the drafting apparatus arranged on the opposite
sides of the frame, the bell crank lever of each
drafting apparatus having vertical and laterally
disposed arms, spring means interposed between
the stand and the lateral arm of each of said
levers, and an operative connection between the
laterally-disposed arm of each of said levers and
the spring means, a rod connecting the saddle of
each drafting apparatus to the vertical arm of
each of the levers, said spring means being dis
posed intermediate the pivotal connection of the
bell crank and the drafting rollers of each draft
ing apparatus, the operative `connection with the
laterally disposed arm of each of said levers trans- `
mitting the action of the spring means through
the bell crank levers and rods to tension the sad
dles on the outer rollers of each drafting appa
ratus.
`
`
ETSURO KATO.
2.5
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