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Патент USA US2119413

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May 31, 1938.
N. A. BATCHELDER
2,119,413
LOOM GOVERNOR
' Filed July 19, 1937
127108233034.-
_
N92608:, c/Z. Baifci’zeider, ‘
Patented May 31, 1938
‘2,119,413 ‘
UNITED‘ STATES
PATENT ‘OFFICE- '
2,119,413
.
_
. LooM GOVERNOR.
‘
Nelson A. Batchelder, West Barrlngton, R. I.
‘
Application July 19, 1937, Serial No. 154,332 ‘
3 Claims.
(01. 139-1)
.
-
.
My present invention relates to the art of weav - or shuttle changing type. In Fig. 1 I have rep
ing, more particularly on ?y shuttle looms em ' resented somewhat diagrammatically, a battery
l5 of fresh bobbins having the usual hammer l6 '
ploying shuttle-picking'mechanism, and aims to
- regulate,'equalize, increase the speed and other
5 wise improve the operation of looms in general. -
In the accompanying drawing, illustrating by'
> way of example one embodiment of the inven
tion,
-
Fig. 1 is a view looking at one side of a loom,
10 the right hand side inthis instance, the front or
‘take-up end being at the left in said ?gure and
the rear or let-off 'end at the right;
'
Fig. 2 is an elevation ofna governor unit or assembly in accordance with the invention and as
15 shown in Fig. 1, looking toward the front of the
- loom, that is, from right to left in said ?gu're: and
Fig. 3 is a section centrally of the mechanism of
Fig. 2, in the plane of the shaft. '
. Referring “ more particularly to the drawing, I“v
and dagger [1 for cooperation withva bunter l8
on the‘lay. Actuation of said parts, to e?ect re-.r 5
' plenishment, may be controlled by suitable feeler
.
mechanism (not shown) operating to effect a call
for a' new weft supply either upon depletion or
upon exhaustion or substantial exhaustion of the
previous supply in an active shuttle. In addition 10
the loom is provided with harnesses and shedding
mechanism,
other equipment
let-offasand
may
take-up
be appropriate
means and
tosuch
the
particular weaving job.
‘
The parts above referred tov may‘ be of any 16
known or preferred construction,_ the present in
vention residing in the combination therewith,
or with any loom, of regulatory means of which
I will now describe one example selected for
.20 have in Fig. 1 represented only such main parts ‘illustrative purposes. and in such means per: se 20
of a loom as are adequate for the purposes of the.
present disclosure, selecting for the sake of illus
tration a plain loom, such for example as a Drapf
er model “E’? and which may be of the automatic
as adapted for use upon a loom. '
' As best seen in Figs. 2 and 3, the crank shaft 6 is
extended outwardly beyond the loom side frame
5. Upon this extension_‘or'end portion of the
crank shaft there is mounted, [loose upon the 25
25 replenishing or other type. As will be apparent "shaft,
a relatively large, heavy rotatable inertia
from the following description the advantages of
the invention are obtainable in the combination element or governor illustrated in the form of a
and‘use of the latter 'upon most, if not ‘all, looms; wheel- 20. At‘one face‘ of this (governor wheel,
and especially those of the higher speedtype, or‘ herein the inner face, a thrust collar 2| is pinned .
or otherwise fixed on the shaft, holding the '30
30 'in conjunction with obtaining a maximum of op
wheel against inward movement...
_
> '
_
'
erating efficiency for any given loom.
'At the other face of the wheel, the outer face
In Fig. 1, one side frame, herein that at the
right facing the front of the loom, is indicated at in the illustrated example, is an integral or other »
5; see also Fig. 2. The main or crank shaft is seen
35 at 6 and the cam shaft at ‘I. At the loom front,
hub 22 forming one element of an automatic
'
at the left in Fig. 1, is usual breast beam 8, while
clutch means. Said hub has at its outer face a 35
circumferential series of rather shallow, rounded
at the rear are the bearings -9 for the warp beam.
The loom side or end illustrated is in this in
lar teeth 24 on the other main element 25 of the
stance that opposite the power-receiving end, the
40 drive mechanism and other associated parts ac
cordingly not being seen in‘ Fig. 1. Such drive
mechanism may be of the fast and loose pulley
type, or motor driven, generally through a fric
tion clutch, or' otherwise, the present invention
-45 being equally applicable with anyxform of drive
for the loom.
or scalloped teeth 23 adapted to mesh with simi;
clutch‘mechan'ism, said element being ?xed for
rotation with the shaft 6 but being slidable to- 40
ward and from the element 22, 23 which is ?xed
for rotation with the wheel 20. Said slidable ele
ment 25 is in the ‘form of a collar or sleeve sur
rounding the shaft 6 and movable lengthwise of
it.‘ It is angularlye?xed relative to the shaft, for 45
rotary movement with it, as by means of an in
.
_
.
ternal keyway slidably receiving a key 26 s‘et-in a
The lay and right-end shuttle box are repre
way 21 in the shaft 6'; see Fig. 3. Said clutch ele
sented at [0 and the reedv at l I, the lay being sup
ported for swinging movement by the usual ' ment.25 is slidably received on the reduced inner
‘end 28 of an adjustable sleeve 29 having an outer 50
50 swords, oneof .which is seen at l2 and its pivot
collar or shoulder portion 30.' This sleeve 29 is
al mounting at l3.- . The lay is operated by the
crankshaft 6,-one connectingdcrank arm being ?xed on the shaft, adjustably, as by one or more
indicated at It. As previously stated, the loom set screws 3|. Surrounding the intermediate por
may be equipped for automatic replenishing, or tion of the sleeve 28 is a compression spring 32
55 otherwise, and may be of the bobbin changing bearing between the outer shouldered portion 30 55
L
2
2,119,413
of the sleeve and the slidable element 25 and urg
ing the latter into engagement with the clutch
element 22, 23 of the governor or ?y wheel 20.
The spring tension may be regulated by adjust- -'
. ably varying the position of the ?xed sleeve 29
lengthwise the shaft.
'
The operation of the automatic governo
‘ mechanism will readily be understood from' the
' foregoing description, in connection with the
10 drawing. Assuming the loom to be at rest, power
is applied tr start it in whatever manner it-is
supplied. As the loom .starts up, the inertia of
the governor [wheel 20 causes it to lag behind
the shaft 6, as permitted by reason ‘of the scal
rubber or the like generally are provided to cush-I
ion the blow of the daggers but nevertheless the
abrupt stopping of the lay is a comparatively- _
violent action, in principle a collision of a power
driven moving part with a ?xed part, and any
thing tending to increase the violence of this ac
tion would be objectionable.
' I
The regulatory or governing means of vmy in
vention produces a truly remarkable stabilizing,
evening and easing eifect on all rapid actions of I
the loom, and throughout the entire operating;
cycle. It has long been recognized that the main
actions of a ?y-shuttle loom, especially the recip
rocatory motions of picking-and of beating up,
15 loped or cam-like teeth of the-clutch elements,
are not ideal mechanically; witness the efforts to
develop circular looms. In‘accordance with my
against the pressure of its spring as the sets invention the violence of the motions referred,
the slidable element 25 being forced outwardly
.of teeth 24 and-23 are camme'd or ride past each
other.
During a few initial picks of the loom,
perhaps half a dozen or more, the speed of the
wheel 20 gradually builds up, under thev effort
of the spring 32 to interengage the clutch ele
merits, until it attains that .of the shaft. 6, when
to is relieved to a marked, important extent, and
the action in all phases of the operating cycle is _
in effect steadied and eased,vwith the additional .
result that materially higher operating spee
. may be utilized for any given loom.
'
The following considerations, among various
both parts continue to rotate as a unit. In the others, will demonstrate the bene?cial effects of
stopping of the loom for any cause, the reverse the means of my invention. If an ordinary loonj;,,“‘"
action takes place. The momentum of the gover- v unbalanced, without my governor mechanism, is ’
nor wheel 20 causes it to overrun the shaft,. the speeded up substantially, by the application-of
clutch elements automatically letting go and more power, the'tende‘ncy of the- over-powered
allowing the shaft to' come to rest while the picking action is to knock the ?lling off the bob
-30 wheel continues to revolve, camming the slidable. bin in the shuttle, an effect known as “slu?ing
clutch element outwardly against its spring and" off." But with the'application of my governor
passing the rounded teeth of the latter, until
shortly the wheel also comes to rest.
It will be evident that the automatic clutch
the power applied to the picker stick to drive the _
mechanism, which may be of any suitable form
other than that herein shown by way of exam
shuttle across the loom acts ‘in a gentler and more
e?lcient manner due to the even speed of all parts
as contrasted with the relatively erratic action
in an unbalanced loom. In actual tests continued
ple, is effective to keep the starting torque upon
the loom parts relatively low despite the presence
otherwise customary operating conditions, I have,
of the ‘heavy governor wheel, so that little or
no additional load is placed upon the parts. And
' conversely, when the loom is stopped, whether by
the operator or automatically in response to some
’ failure or improper loom action, such as breakage
vor failure of warp or weft, improper boxing of
the shuttle or other fault calling for loonr stop-W.
page, the clutch automatically releases and allows '
the governor wheel to continue to revolve until
its momentum is spent, while the loom parts
come quickly to rest in the usual manner.
The
automatic stopping of a loom, particularly that’
effected-by the protector motion, for protecting
the warp yarn from being broken by the lay
and shuttle in case the latter for any reason
remains in the shed when the lay moves for
ward to beat up‘ the ?lling, is a rather violent
action, entailing great strain on the loom parts.
It is accordingly important that such strain
produced by the stopping'or so-called knocking
off of the loom should not in any event be in
creased. -Were it not for the automatic release
of the relatively heavy inertia or govemcr ele
ment of my invention there would inevitably be
an undesirable and impracticable increase in the
violence of the knocking 01f action. This will be
65 appreciated from the fact that the protector mo
tion above referred to acts to present an im
movable part in the path of the lay, whereby the
latter is stopped instantaneously and positively
by coming into collision with the immovable
over a period ‘of weeks in a weave room, under
for example, operated a Draper model “E’” 40
inch‘ loom equipped with my governor at the rate
‘of 200 picks per minute, throughout the entire
period referred to, weaving ?rst grade cloth in ‘
every way comparable to the product of that loom
at its heretofore top speed of 150 picks per”
' minute.
'1.
The resultant saving in production costs on“;
looms equipped in accordance with my invention
involves not only a very substantial direct labor
saving, but the improved operation of the loom
as a whole effects a’ marked saving in the general _
overhead charges against a loom, including'such
items as maintenance, depreciation, indi’reet'labor
and others, which further saving itself may
amount to twenty percent or more of the over
head cost per yard of the woven product.
,
Striking proof of the evening and easing’ effect
of the balanced power on the picking action, in
the practice of my invention, is also found in the
fact that if a usual loom, such as above referred
to, is abnormally speeded up‘ by theniere addi
tion of power, great di?iculty will be experienced ea
in preventing the shuttle from re-bounding out
of the shuttle box and causing the loom-to‘ knock
01f by operation of the protector motion. Even
a slight addition of power‘ in the shuttle boxing
is liable to throw the shuttle ‘entirely out of
part, such as a lever associated with the shorter
handles of the loom and struck by a dagger on
the loom, while a slight: reduction in the power
of the boxing action is apt to result in the‘ shuttle
not being driven the whole length of the lay and‘
again causing the loom to knock o?’, or else re
the lay and acting to stop and hold the lay far‘
sulting in a smash. But with the provision of
enough away from the fell of the cloth so that
it will not be able to break the warp ends by
76 driving the shuttle against them. Blocks of '
pletely obviated, the pick is put in easily, and the,
1,0
the means of my invention such results are com
loom action as a whole is more nearly comparable
2,119,413
to that at an ordinary speed of not materially
above 150 picks per minute.
Further important evidence of the stabilizing
and power-balancing or evening effect of my de
vice is had in the fact that breakage of warp
ends, at the high speed of 200 picks per minute is
decreased, rather than otherwise, as compared
with that generally experienced at the previous
average top speeds at 150 picks per minute. This
v10 is evidently due to an'easying of the harness ac
3,
picking means, shedding mechanism,’ a drive
shaft for the loom, power-applying means for
the shaft, an inertia governor wheel looselyre
ceived on the shaft and separate from the power
applying means, and automatically engaging and
releasing connections between the wheel and the
shaft including oppositely disposed hub-like
members surrounding the shaft, each having a
concentric series of arcuate teeth, one of said
tion especially, as well as the similar steadying, members ?xed for rotation with the wheel and 10
and smoothing eifect on all other rapid actions the other ?xed for rotation with the shaft, said
of the loom. This decrease in warp end breakage members being relatively movable axially away
from each other by a mutual camming action to
_ has been demonstrated by actual test under work
15 ing conditions in a weave room, continued over a effect said automatic release of the wheel and
shaft, and spring means opposing said relative 15
period of weeks. The foregoing improved re
sults have been obtained-on'a forty inch loom
driven by an electric motor (1/_, h. pf) through a
friction clutch, .as well as upon looms having a
belt drive.
,
In a further demonstration of the bene?cial ef
fects of the power-controlling means of the in
vention a used 40' loom with a light frame was
rebuilt to weave an 80" cloth, by inserting an
'_ extra central section. Ordinarily this light loom
would not stand such an augmented shuttle
throw, and could not‘ satisfactorily pick the
shuttle across the distance necessary for an 80"
warp. But in combination with the governor
means of my invention the widened light-weight
loom performed in a highly acceptable manner.
It will be understood that the weight of the
governor wheel and- the loading of the clutch
spring are selected and proportioned to the par
ticular loom and to the result desired, whether
that of, increased operating speed for a given I
loom, or an increased width of warp as made pos- ,
'sible by'the application of greater power under
the stabilizing and constant speed effects of the
regulating device, or simply an easing and balanc
ing of the loom action, so as to decrease warp
and breakage andweave more perfect cloth on
movement of said members and urging them to
ward wheel and shaft engaging position of their
teeth.
'
2. In an organized loom, in combination, a lay,
pickingmeans, shedding mechanism, an operat '20
ing shaft element for the loom, power-applying
means for the shaft element, a rotary inertia
element loosely mounted on the shaft element and
separate from the power-applying means, oper
ating connections between said elements includ 25
ing a plurality of projections ?xed for rotation
with one element and a like number of receiving
formations ?xed for rotation with the other ele
ment, said projections and receiving formations‘
being relatively movable to and' from driving 30
relation, spring means urging them into driving
relation for rotation of the inertia and shaft
elements together while the loom is running, and
said projections and receiving formations being
shaped and arranged for self-camming move
35
ment out fromvdriving relation and against said- -
spring means, to allow relative rotation. of said
inertia and shaft elements in stopping‘ and in
starting of the loom.
'
3._ In an organized loom, in combination, a lay,
picking‘ means, shedding mechanism, a drive
shaft for the loom, power-applying means for the
shaft,
aninertia governor wheel loosely received
crease. Thus, for example", with the slower
‘running, wide. looms‘the weight of the- wheel and on the shaft and separate from the power-apply
the springtension for the clutch are made greater , ing means, and readily self-releasable connections
operatively interposed between the shaft and ‘the
than for narrower higher speedv looms. In any wheel,
said connections comprising opposed con
instance the result is to stabilize the main’move
centric series of yieldably interengageable pro
the particular lo’om, irrespective of speed in
ments of ‘the loom, including that of the lay, the
picking action, and the shedding or harness ac
tion, affording a constant speed and great regu
larity throughout the whole operating cycle.
Likewise it will be understood that other con
structions of’irutomatic engaging and releasing
_ means for the govemor' wheel may be employed,
either positive or of the friction type, such as
a disc or plate friction clutch, arranged to‘ afford
the automatic operation as herein described.
jection and indentation formations including ‘a
formation series ?xed for rotation with the shaft 5,0
and a formation series ?xed for rotation with
the wheel, said connections being relatively mov
able between driving and releasing positions, and
spring means automatically controlling said con
nections, urging them to driving position for ro 55
tation of the vwheel and shaft together while the
loom vis running, and permitting them to yield
Such constructions, however, involve the use of ’ relatively to move themselves to releasing posi
tion wherein. the wheel may, freely overrun the
additional parts and mechanism, whereas the ex
tremely simple embodiment as herein illustrated shaft without substantial frictional drag thereon
has proven highly eflicient and is eminently suit
tending to oppose braking of the shaft, in stop
ed for most if not all 100111 installations.
ping the .loom, and ‘so that the shaft may advance
My invention is not limitedto the particular angularly~relative to the wheel and impart iri-v
embodiment thereof as ‘herein illustrated and - creasing momentum to the latter‘ during an initial
' described, its scope being set out in the following or starting period at the end of which the wheel
‘claims:
attains loom shaft speed, in starting the loom.
I ‘claim:
_
~
_
1.‘ In an organized loom, in comblnatioma lay,
NELSON A. BATCHELDER.
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