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Патент USA US2121137

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June 21, 1938.
(5. WEST
2,121,137
BELT CRADLE FOR ROVINQ AND SPINNING FRAMES
Filed March 26, 1937
lll
I
2,121,137
Patented June 21, 1938
uN-iTEosTArss eATEN'r QFFWZE
2,121,137
BELT‘ CRADLE FOR ROVING AND“ SPINNING
FRAMES
George ‘West, Whitinsville, Mass, assignor to
Whitin Machine Works, Whitinsville, Mass, a
corporation of Massachusetts
Application March 26, 1937, Serial'No. 133,228
10 Claims.
(Cl. 19-131)
This invention’relates to roving and spinning
frames in which endless belts and aprons are pro
vided for controlling the yarn ?bers and for
advancing the ?bers from one pair of driving
5‘ ‘1 rolls to the next.
It is the general object of my invention‘ to providev an improved cradle for ‘supporting a pair
of ‘endless belts in association with the rolls of
a‘roving or spinning frame, and for guiding the
lo-iib‘elts in adesired path.
A further object is to provide a cradle which
may be assembled in operative position without
distortion or injury to the belts.
With these general objects in View, an important
V
A stud or screw 30 having an enlarged head 10
3! is slidable in an axial opening in the stud 22
and extends into a recess 33 in said stud‘. A coil
spring M is mounted on the stud within the‘ recess
33 and is compressed between an end wall of the
15:5.‘ of
feature
acradle
of my
of simpli?ed
invention construction
‘relates to the
and
provision
having
recess
freely and
slidable
a nut
in 35,
thethreaded
recess. on
After
the the
studnut
3i] and
has
no loose or removable parts. Another feature relates to the provision of an improved means‘ for
guiding the news, by which edge wear of the belts
been adjusted by a Suitable tOOl inserted in the
recess 33, a cap 36 may be forced into the end
of the recess to close said recess, as shown in
of the guide bars l5.
20tis My
substantially
invention eliminated.
further relates to arrangements
1
‘
Fig.
The
5. somewhat
‘
simpler stud construction
‘ ‘ shown
and combinations of parts which ‘will be here~
inafter described and more particularly pointed‘
in Fig. 8 may be‘ substituted if desired. In'this
form, the stud 31 has a straight hole through
out in the appended claims. “
which a headed bolt 38 extends.
25;;
‘
A preferred formof the invention is shown in,
This nut must be loosened before the cradle parts
Fig. 1 is a sectional side‘elevation of my im~
proved cradle, in'association with drawing rolls
can be separated.
‘ The, side plates 20 and 2| have o?set flanges"
‘ ‘
“
'
Fis- Zis 2» slde elevation of the cradle;
‘
“
_
35?‘ _ ‘mg 5 15a" §ect1ona1 plan new’ taken along the
11ne_5~—5}11F1€' 2;
p _
-
_ _
‘a
Pilgr- 6 1S 3’ slde elevat-lon showmg the Parts m
19051171011?” assembly;
_
i
,_
.
p
7 1s 3‘ degegl Vlew of? .gulde ém’r’ 31nd _. ‘ .9
‘ 4o‘j‘to‘bgfiess’cgiilgg are detal vlewso modl?cauon"
Referring to the drawing, 1' have shown my improve-d .cradle associated with a set of drawing
rolls comprising "a pair of back rolls l0, interme45.73am“? r0115 H and front rolls |2_
i ‘
All and M at their rear‘ end portions, and also
indicated at 42 and 43, all for a purpose to be
describei
Fig- 4 is a plan yiew, looking in the direction
of time ELYFOW 4 1n_F1g- 2;
-
have their middle portions- outwardly oifset as > 30
Fig. 3 is a front elevation, looking in the _direc-‘tion of the arrow 3'i‘n Fig. 2; ‘
i
The bolt is se-
cured by a nut 39 outside of the side plate 20. 25'
the drawing, in which-—
‘and endlesshelts;
301i
‘
with the side plate 20, these parts preferably
having reduced end portions headed or spun to
secure the stud and bars in the‘plate.
The outer end of the stud 22 also has are
duced portion 24 which forms a pivotal bearing
for the side plate 2|, which plate also has open- 5
ings 26 to receive the reduced and substantially
rectangular outer end portions or‘ projections 2'!
_
‘Having described the details of construction of
my improved cradle, the manner of application
and advantages thereof are as follows:—
:35
When the cradle is to be applied in a roving
or spinning frame, the parts. are moved around
to the position shown in Fig. 6, ‘after which the
lower guide-bar 15.15. inserted in the lower belt
M, which has previously been mounted on the 40
lower Intermediate r911 H‘
,
The upper belt '3 1s, then place‘? over the uppel
gulde bar
and the 5318 plate 2! ‘5 sw'ung arwnd
Uppsr and
to the position shown 11‘1F1g.2, in which position 45
lower belts or aprons |3 and M are‘ provided,
which belts encircle the intermediate ‘rolls II
and at their front or lower ends are positioned
by guide bars l5,‘ one of which is shown in Fig. '7.
502 These bars form a part of the cradle to be (16-
the proiections 2i snap into theopenmgs 26. The
Parts are held in this assembled‘relatio‘n by the
spring 34, acting through-the Stud 30 and 155 en
larged head 3|‘
It will be understood that the plate 2| assumes 50
the position shown in Fig. 5 only when manually
displaced and held from return movement.
scribed.
‘
My improved cradle comprises ‘side plates 20
and ‘2|, a cross rod or stud 22, and a pair of the
guide-bars l5 previously described.
The stud
55‘: 22 and guide-bars I5 are permanently assembled
‘ The upper belt is then inthe dotted line posi
tion shown in Fig.’ 1, in which‘ position the upper ‘
intermediate roll it is inserted in the belt.
The ‘
2
2,121,137
belt and roll are then swung downward to the
, 3. A cradle for endless belts in a roving or
operating position shown in Fig. 1.
It is sometimes desirable to vary the distance
between the guiding portions of the bars l5,
spinning frame comprising a side plate, a cross
stud ?xed thereto, a second side plate pivoted on
the outer end of said cross stud and having open
ings therein, a pair of guide-bars secured in said
?rst side plate and having projecting end por
tions insertable in said openings in said second
plate, and yielding means to hold said parts nor
particularly as the nip of the belts l3 and 14
changes as the belts wear and become more ?ex
ible. To permit such adjustment, I may mount
one or both of the guide bars as shown at 45 in
Fig, 9. The bar 45 has a pivot portion 46 and a
10 threaded portion 41, both located near one edge
'mally in operative relation and to prevent dis
assembly of said parts.
'
of the bar and loosely ?tting pivot holes in the
side plates. A nut 48 retains the adjustment.
4. A cradle for endless belts in a roving or
spinning frame comprising a side plate, a cross
Instead of mounting both guide bars on the
plate 20, I may mount one bar I5a on the plate
15 20 and the other bar l5b on the plate 2|, as shown
mounted on the outer end of said cross stud, said
in Fig, 10.
Reference to Fig. 1 will show that the belts
are guided laterally by the end portions 50 of
the side plates 20 and 2|, which end portions 50
and having a projecting end portion insertable
engage the belts as they pass around the guide
bars l5 and while they are approaching but
still clear of the rolls ll. Those portions of the
belts which are gripped between the rolls are
not engaged by the side plates, by reason of the
25 outwardly displaced portions 42 and 43.
I thus guide the belts in desired paths by en
gagement with those portions of the belts which
are approaching the rolls but not yet under pres
sure and which may be readily shifted laterally
30 if necessary, while on the other hand no lateral
or transverse pressure is applied to those por
tions of the belts which are under pressure and
which are incapable of yielding transversely.
Consequently the belts are easily and accurately
guided and there is practically no wear on the
edges of the belts, as is the case where the side
plates engage those portions of the belts which
are under pressure.
The ?anges 40 and 4| are provided to limit
40 side travel of the roving R by engagement there
with, as indicated in Fig. 1, so that the roving
may not traverse so far in either direction as to
run off of the edges of the belts.
The advantages of my improved cradle will be
In the ?rst place, there are
no loose parts to be removed and replaced and
consequently to be readily lost. In the second
45 readily apparent.
place, the straight and unobstructed guide-bars
_ l5 are easily inserted within the belts by a simple
50 straight movement, so that no stretching or dis
tortion of the belts is occasioned by either as
sembly or separation of the parts. Furthermore,
the extreme simplicity of the assembled struc
ture assists greatly in maintaining the desired
cleanliness of the machine.
Having thus described my invention and the
advantages thereof, I do not wish to be limited to
the details herein disclosed, otherwise than as
set forth in the claims, but what I claim is:—
l. A cradle for endless belts in a roving or
60
spinning frame comprising a side plate, a cross
stud ?xed thereto, a second side plate movably
stud ?xed thereto, a second side plate movably
side plates having‘ openings therein, a pair of
guide bars each secured in one of said plates
in an opening in the other plate, and means to
hold said parts in operative relation, one of said
guide bars being angularly adjustable in said 20
side plates and means being provided to preserve
the angular adjustment of said bar.
5. A cradle for‘ endless belts in a roving or
spinning frame comprising a side plate, a cross
stud ?xed thereto, a second side plate pivoted 25
on the outer end of said cross stud and having
openings therein, a pair of guide~bars secured
in said ?rst side plate and having projecting end
portions insertable in said openings in said sec
ond plate, and yielding means to hold said parts 30
in operative relation, one of said guide bars be
ing angularly adjustable in said side plates and
means being provided to preserve the angular
adjustment of said bar.
6. A cradle for endless belts in a roving or 85
spinning frame comprising a side plate, a cross
stud. ?xed thereto, a second side plate pivoted
on the outer end of said cross stud, said plates
having openings therein, a pair of guide-bars se
cured in one of said side plates and having pro
jecting end portions each insertable in said open
ings in said side plates, and a spring-operated
plunger mounted in said cross stud and effective
to hold said parts normally in operative relation.
7. A cradle for endless belts on drawing rolls 45
in a roving or spinning frame comprising a cross
rod, a ‘pair ofguide-b-ars, a pair of side plates
spaced apart by said rod and bars, and means
to hold said parts normally in operative relation,
said side plates having portions engaging and 50
transversely guiding the belts at points only
where said belts are free from pressure and hav
ing all portions adjacent the belts as they ap
proach or engage the drawing rolls offset out
wardly to clear the edges of said belts.
8. A cradle for endless belts in a roving or
spinning frame comprising a cross rod, a pair
having portions engaging and transversely guid
ing the belts at‘ positions where said belts are
approaching the rolls and are free from pressure,
pair of guide-bars each secured in one of said
and having other portions clearing the edges of
the other side plate, and means to hold said parts
in operative relation.
2. A cradle for endless belts in a roving or
spinning frame comprising a side plate, a cross
70 stud ?xed thereto, a second side plate movably
mounted on the outer end of said cross stud, a
pair of guide-bars secured in said ?rst side plate
and having locating engagement with said sec
ond plate‘, and means to hold said parts in oper
75 ative relation.
55
of guide-bars, a pair of side plates spaced apart
by said rod and bars, and yielding means to hold
said parts in assembled relation, said side plates 60
mounted on the outer end of said cross stud, a
65 side plates and having locating engagement with
10
said belts at positions where the belts are leav 65
ing the rolls and are under pressure.
9. A cradle for endless belts in a roving or
spinning frame comprising a ?xed one-piece side
plate, a movable one-piece side plate, a cross
rod permanently and pivotally connecting said 70
side plates, and two guide bars each ?xed in one
of said plates, all of said parts being permanent
ly assembled but one of said side plates as a unit
being pivotally mounted relative to the other side
plate on said cross rod, means to determine the 75
2,121,137
3
normal operative position of said pivoted side
plate, and means to hold said pivoted plate in
operative position but permitting manual dis
placement thereof.
bars being angularly movable to selectively vary
the spacing between said guide-bars, and means
10. A cradle for endless belts in a‘ roving or
spinning frame comprising two side plates, a
to maintain a selected spacing of said bars.
GEORGEv WEST.
pair of belt guide-bars’ spaced apart and. located
in and between said‘ side plates, one of said guide
CERTIFI GATE OF CORRECTION.
Patent No. 2,121,157.
June 21, 1958.
GEORGE WEST.
It is hereby certified that error appears in the above numbered'patent
requiring correction es follows: The present sheet of drawing should be
canceled and the sheet shown below should be substituted therefor as a part
of
the
Letters
Patent
June 21,1938.
-
_
’
2,121,137
G. WEST
BEIJ'I| CRADLE FOR ROVING AND SPINNING FRAMES ‘
' Filed March 2s,
I\\\\\\\\\\\\\\\\\\\\\\\\
'
I._\'\'E‘\'TUR.
620/‘ e 7962f
'
AI'I'UhXLEY.
and that the said Letters Patent should be read with this correction there- ‘
in that the same may conform to the record of the case in, the Patent Office.
Signed and sealed this 9th day of August, A.'D. 1958.‘
‘
(Seal)
Leslie
Frazer
Acting Commissioner of Patents.
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