close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2111926

код для вставки
L‘?:
2, 1938.
R
_ Ev
2,111,926
MACHINE Eon DRAW
FLA , wooL, ‘AND OTHER
FIBERS FOR FORMING SLIVERS OR YARN
Filed Sept. 21, 19:56
‘ 2 Sheets-Sheet 1
ATT’ORNEY
March 22, was.
R. v. EVES
4
2,111,926
_MACHINE FOR DRAWING FLAX, WOOL, AND OTHER \
FIBERS FOR FORMING SLIVERS OR YARN
Filed Sept. 21, 1936
2 Sheets—Sheet 2
a
8
2 2
2 “2
A
I
A
E
E
K '1
K
Fig.5‘? 1‘ k
W@
1
,_ -M
'
w
V
VMi
t T
. W‘
Z
Z
Xv
__6 U3‘
O t2
INVENTOR
' ATTORNEY
2,111,926
Patented Mar. 22, 1938
UNl'E
All/N r fore-ice
srArE-s
2,111,926
.
MACHINE FOR‘DRAWING FLAX, WOOL, AND
OTHER ‘FIBERS FOE FORIVHNG SLIVERS
OR YARN
Reginald Valentine Eves,‘Belfast, Northern Ire
land, assignor to J. & T. M.’Greeves Limited,
Belfast, Northern Ireland
'
Application September 21,1936, Serial No.<101,817
:In Great Britain October 4, 1935
,(Cl, 19-135)
12 Claims.
pressure to, and the controlling the position of,
Figs. 4, 4a and 4b: are details of an alternative
method of swinging the gib.
pressing rollers in machines for drawing ?ax,
Figs. 5 and 5a show a general arrangement of
The invention relates to the application of '
wool, and other ?bers for forming sliver or yarn, ' gib, rollers, spring wire and pressure appliance. I
The machine is constructed with a positively v;
driven main roller I and pressing rollers E each
of the type in which ?ber is drafted between a
positively driven main-rollen'and pressing rollers
riding on the main roller, the pressing roller be _ having two bosses 2 mounted on a single arbor
ing constructed of two. bosses mounted on a short riding on the main roller I and driven by sur
face contact, the bosses 2 being generally hard
axle and weight being applied thereto by a swing
10 ing arm or gib» pivoted adjacent to and resting wood, the peripheries of which are trued up peri- .
‘ upon the axle between the bosses of the pressing odically as wear takes place. The bosses may
however be covered with leather, cork, or other
roller.
'
The objects of the invention are to control the material, their‘ diameter being practically con
working position of the pressing rollers or bosses stant. Pressure is applied to the pressing rollers '
15 more simply and accurately, to secure a rigid by a swinging arm or gib A applied to the arbor ‘15
1 locking of the swinging gib with the-axle bush between the bosses ~2. ,
The swinging gib A is constructed with a sup
thereby avoiding extended axle ends beyond the
bosses, to enable pairs of pressing rollers tobe porting or carrier-bracket a by which it is mount
ed. on a rod or pivot B to swing in a plane vertica
to the axis of the pressing roller E the axis of _
. placed much more closely together and to enable
20 the operative to change the rollers more easily
than with any of the known types of spring or
weight loaded rollers and swinging gibs.
The invention comprises a swinging gib so
constructed and pivoted that it is free ‘to-swing in
one plane vertical to the axis of the pressing
01
the rod or pivot B being parallel with that of 20
the ‘main roller I. The supporting carrier
bracket (1. may also be formed with a lug a3 to
which is pivoted an arm A2 to carry a top dead
rubber A3.
25
In the form shown in Figs. 1, 3 and 5 the sup
:porting or carrier bracket a is formed with two
sockets or bearings a1 a2 and the end of the gib
A with a pivot C at one end. The bearing (11 cm
braces the pivot or rod B and the bearing a2.30
receives the pivot C of the gib A both being held
roller ‘and to the axis of its pivot, to rotate or
:rock about an axis'at right angles thereto and
approximately coincident with its longitudinal
axis and also will engage and lock itself rigidly
90 to the bearing bush of the axle of the pressing
roller and maintain the line of contact between
in their respective position by collars b a4. The
the rollers parallel with the longitudinal axis of
the main roller, without the aid of other con
trolling members.
J .
gib A is free to swing in a plane about the longi
tudinal axis of the pivot B and to rotate or swing
slightly about the axis of the pivot C.
-
'
The invention further comprises an arbor for
In the form shown in Figs. 4, 4a, 4b the sup: 35.
porting or carrier bracket a is formed integral
bearings disposed relatively far apart, a non-" with the end of the'gib A to swing or pivot on
rotary grooved housing for the ball hearings to the rod B and with a knife edge 01 working in -a_
"V groove in a collar 02 freeto revolve on, but.
40 receive the swinging gib, a pair of cupped orre
the bosses of the‘pressing roller comprising a
’ short non-projecting axle provided with two ball
cannot move sidewise on the pivot rod B. The
the ends of the axles and furthera spring, com~ guides LL on the rod B are slotted instead of
pressed in a cartridge or container, a-spring wire 7 being close ?tting holes to allow the arm A to
- ,cessed'washers to carry each boss and nuts on
with a rack or ratchet face and a pawl con
rock slightly about the knife edge.
nected with the spring to apply through the
swinging gib pressure to thepressing roller and
The gib A is thus free to swing in a plane 45
about the longitudinal axis of the pivot B and
to rotate orswing slightly about the transverse
means to compress the spring.
»
v
The invention will be fully described with ref
erence to the accompanying drawings in which:Figs. ,1,‘ 1a and ‘1b are side elevations of the
swinging gib or arm in different positions.
Fig. 2'is a longitudinal section of axle and
pressing roller, assembly.
,
'
7
Figs. 3 and 3a are details of the gib shown in
Fig.
1.
r
‘
'
‘
'
_
axis of the pivot B.
Either of these forms permits the tilting of the
axle of the pressing roller E to accommodate any
Want of truth or irregularity of the faces of the
‘bosses 2 of the pressing roller E, or any variation
of thickness of sliver, to prevent undue strain or
breakage in the event of a lap forming, vand to '
allow the pressings perfect accommodation to ‘555
2
2,111,926
follow the deflection of the roller E under its load.
The swinging gib A is constructed with two
wedge shaped projections H which engage with
and lock ?rmly into a circular groove 9 of angular
cross section in the housing G of the arbor of
the pressing roller E (see Fig. 2). The arbor
of the pressing roller E is thereby held rigidly in
N which is ?xed to the handle T compresses
the spring M through the medium of the rods
V and the plates W W1. The pawl K1 transmits
the load of the spring M through the spring
wire K to the wood rollers E.
A plate Z placed between the plates M1 and
one plane in relation to the main roller I and
W1 acts as an indicator showing whether the
while it holds the ball bearing housing G of the
10 axle ?rmly, yet it can be quickly and easily re
is 01f, plate Z is held tightly between the plates
leased.
The construction of the gib A and its pivots or
supports B and C is such that no movement of
the pair of bosses 2 of the pressing rollers E
15 is possible in a direction parallel with the axis
of the main roller l of the machine, but gives
perfect freedom of motion where needed by al
lowing the axle of the bosses to be tilted.
Referring to Fig. 2 the ‘axle D on which the
20 two bosses 2 of the pressing rollers E are se
cured is screw threaded at each end and pro
vided with two ball bearings M placed as far
apart as possible to secure accurate alignment
of the axle.
The aperture through the centre
:25 of the bosses 2 is sufficiently large that the ball
bearings M and their housing G may be dis
posed inside them, cupped or recessed washers
R are ?tted into the central apertures of the
bosses 2 and nuts S are applied to the screwed
'30 ends of the axle D.
By tightening up these
nuts everything is held in place and the bosses
2 securely held to rotate with the axle D which
is free to rotate within the housing G. By this
construction any projection of the ends of the
axle D beyond the bosses 2 is avoided and en
ables the space a: (see Fig. 5a) between pairs of
rollers E to be reduced as much as desired. The
housing G so arranged provides a lap guard to
prevent ?bers lapping around the axle D.
The advantage of this type of ball bearing arbor
for pressing rollers is that both bosses 2 are
fast on the axle and turn together with it, one
boss helping the other to revolve.
Many rollers
are used with a non-rotating axle with ball
bearings in the body of each boss, but such roll
ers have the disadvantage that if the sliver
under one boss is momentarily hard to draw, it
gets no help in turning from its fellow boss, on
the axle.
50
Referring to Figs. 5 and 5a pressure is applied
to the axle of the pressing roller E through a
spring wire K suspended from the gib or arm A
by a charged spring M compressed in a contain
er. ‘The spring M has a long stroke and is com
55 pressed to working load between two plates W, W1
by bolts or rods V.
A plate Ml takes the reaction of the spring
N and to it is affixed a sleeve Y to the head of
which a pawl K1 is pivoted. The spring wire
60 K at its lower face is formed with a rack or
tion just beyond the dead centre line. The pin
spring pressure is on or oif.
When the pressure
W1 and M1 but becomes loose when the pres
sure is on. The pawl K1 is so weighted that it
prevents the spring wire K from dropping when
it is taken oif the end of the gib A for the re
moval of a roller. If the replaced roller has 15
bosses of smaller diameter the spring wire K
can be easily pushed down to the next ratchet
tooth k. The handle T is detachable, ?tting into
a socket t and formed with a groove 251 to engage
a quadrant guide t2 to prevent it being removed
until the pin N is over the dead centre and when
the full pressure is on the roller E the handle
will fall out of its socket if not taken away.
What I claim as my invention and desire to
protect by Letters Patent is:—
1. In a machine for drawing ?ax, wool and
other ?bers of the type referred to the combi
nation with the main roller and the pressing
roller of a pivot rod parallel with the main roller
upon which to mount a swinging gib, a swinging
gib, pivotal means applied to the pivot rod Where
by the gib may swing in a plane vertical to the
longitudinal axis of the main roller, pivotal means
at the rear end of the gib whereby it may also
rock about its longitudinal axis and means at ‘I
the forward end of the gib by which it can lock
itself with a bearing bush in the pressing roller
to maintain the line of contact between the roll
ers parallel with the longitudinal axis of the
main roller.
40
2. In a machine for drawing ?ax, wool and
other ?bers of the type referred to the combina
tion with the main roller and the pressing roller
of a pivot rod parallel with the main roller upon
which to mount a swinging gib, a. swinging gib,
pivotal means applied to the pivot rod whereby
the gib may swing in a vertical plane, pivotal
means at the rear end of the gib whereby it may
also rock approximately about its longitudinal
axis, and means at its forward end by which
the swinging gib can lock itself with a bearing
bush in the pressing roller to maintain the line
of contact between the rollers parallel with the
longitudinal axis of the main roller.
3. In a machine for drawing ?ax, wool and
other ?bers of the type referred to the combina
tion with a positively driven main roller, a press
ing roller riding on the main roller and a swing
ing gib for applying pressure to and controlling
the position of the pressing roller, of a pivot rod 60
mounted parallel with the main roller, a swing
ratchet teeth It with which the pawl K1 engages
to apply pressure to the spring wire and gib A.
When the pressure has to be released from the
rollers the casing or container of the spring M
will prevent it extending.
The lower plate W1 is formed with an exten
swinging gib ?tted into the socket of the swing
ing bracket within which it is free to rock about
its longitudinal axis.
sion member 10 formed with a hook to be engaged
by a crank pin N on a lever T pivoted at u which
4. In a machine in which ?ber is drafted be
tween a positively driven main roller and a press
70 having a short stroke is employed to pull down
one element of the casing, thus putting the
full working pressure of the spring M on the
bosses 2 of the pressing roller E with small ex
penditure of energy. To apply the pressure the
75 handle T pivoted at u is depressed to a posi
ing bracket mounted on the pivot rod formed
with a socket, a journal on the rear end of the
ing roller riding on the said main roller, the
combination of a swinging gib for applying pres
sure to the pressing roller, a swinging bracket
?tted to the rear end of the swinging gib, a
pivot rod on which the swinging bracket is
mounted and pivotal means by which the swing 75
3
2,111,926
ping gib is connected to the said bracket to rock
approximately about its longitudinal axis.
5. A swinging gib for applying pressure to the
pressing roller of a machine for drafting ?ax;
wool and other ?bers comprising in its construc
tion an arm, a pivotal journal at its rear end,
and a swinging carrier bracket formed with two
sockets at right angles to one another, one socket
to receive and hold the pivotal end of the arm to
10 permit the gib to rock about its longitudinal axis
and a pivot rod upon which the other socket is
mounted to permit the gib to swing in a vertical
plane and to rock slightly about an axis at'right
angles thereto.
15
6. A swinging gib for applying pressure to the
pressing roller of a machine for drawing ?ax,
wool and other ?bers comprising an arm, a piv
otal journal formed at the rear end of the said
arm, a supporting carrier bracket formed with
20 two bearing sockets at right angles to one another
one to embrace a pivot rod parallel to the axis of
the rollers and the other to receive the pivot on
the end of the gib arm whereby the gib is free
to swing in a plane vertical'to the axis of the
25 pressing roller and to, rock slightly about an axis
approximately coincident with its longitudinal
axis.
'7. A swinging gib comprising an arm with a piv
otal journal at its rear end, a swinging carrier
30 bracket with two sockets at right angles to one
another into one of which the pivotal journal
of the arm is ?tted and a pivot rod on which the
other socket is mounted and locking projections
at the forward end of the arm to engage the
35 bearing bush of a top pressing roller.
8. A swinging gib as in claim 1 comprising in
its construction an arm, a supporting carrier
bracket formed integral therewith at its rear end
with a knife edge upon which it may rock in com
bination with a pivot rod, and a collar with V
groove on the pivot rod in which the knife edge
of the bracket engages, whereby the gib is free,
to swing in a plane vertical to the axis of the
main roller and to rock slightly at right angles
thereto approximately about its longitudinal axis.
9. In a:machine as in claim 1 a pressing roller
having two bosses and an arbor comprising a
short non-projecting axle, two ball bearings there
on disposed relatively far apart, a non-rotary 10
grooved housing for the ball bearings, a pair of
cupped recessed washers mounted on the arbor
to carry each boss, and nuts on the ends of the
axle to secure the cupped washers and the in
side races of the ball bearings fast to the axle.
10. A swinging gib as in claim 1 constructed
with two wedge shaped projections on its for
ward end to engage and lock ?rmly into a bear
ing bush of the arbor of the pressing roller.
11. In a machine as in claim 1 the combination
with the swinging gib of means to apply pres
sure thereto comprising a spring wire depending
therefrom provided with ratchet teeth, a spring
compressed within a container, a pawl carried by
the spring container to engage the teeth of the 25
spring wire, and means to draw down the spring
and apply the pressure of the spring to the spring
wire.
12. In a machine as in claim 1 the combination
with the swinging gib of means to apply pres 30
sure thereto comprising a spring wire suspended
therefrom with ratchet teeth, a spring, plates
between which the spring'is compressed, a pawl
carried thereby to engage the teeth of the spring
wire, a handle and pin to engage a projection on 35
the lower spring plate to draw down the spring
and apply the pressure of the spring to the spring
wire.
REGINALD VALENTINE EVES.
Документ
Категория
Без категории
Просмотров
0
Размер файла
587 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа