вход по аккаунту


Патент USA US2411255

код для вставки
Nov. 19, 1946.
Filed March 22, 1945
2 Sheets-Sheet 1
Nov. 19, 1946.
Filed March 22, 1945
2 Sheets-Sheet 2
| v
Patented Nov. 19, 1946
Oscar Fregeolle, Central Falls, R. I., assignor to_
Hemphill Company, Central Falls, R. L, a cor
poration of Massachusetts
Application March 22, 1945, Serial No. 584.179 ‘
6 Claims.
This invention relates to a new and useful
improvement in fashion mechanisms of knitting
machines for regulating loop length in various
sections of the stocking such as the top, leg, etc.,
or within any of these sections. The mechanism
shown is adapted for use in a circular independ
ent needle knitting machine of the Banner type
but the invention is not limited to machines of
(01. 66-54)
if desired, those of the leg fashioning mecha
nism as well.
As shown, it is associated with a
single knitting cam‘ block, the idea being that
so little space is occupied by it that separate de
vices can be used for each cam block thus pro
viding the shortest and best possible connections
to each cam block and eliminating any prob
ability of inaccurate response. The form of the
invention shown herein is designed especially for
this type or to circular knitting machines.
It has been customary to vary the length of 10 a Banner type circular, independent needle, knit
ting machine, as previously stated.
the loops in various parts of a stocking to ob
In the drawings:
tain desired characteristics, accommodate yarns
1 Fig. 1 is a side elevation of a fashioning disc
of different weight and secure a certain amount
and the parts directly associated therewith;
of shaping. Heretofore the common means for
Fig. 2 is a detail view partly in section along
this purpose has been a fashion bracket such 15
the line 2-2 in Fig. 1;
as that shown in U. S. Patents #2,30'7,969 and
#2,369,780 whereby the length of the loops knitted
at one or more cam blocks is controlled.
Fig. 3 is a detail view of a section of the edge
of the fashion disc;
Fig. 4 is a general side elevation of the fashion
Fashion brackets of this kind occupy consider
able space and are usually positioned close to a 20 disc, a knitting cam block and the connections
pattern drum on the main cam shaft by means
Fig. 5 is a front elevation of the connections
of which they are operated and where space is
directly associated with the knitting cam block;
at a premium. They have also been operated
Fig. 6 is a top view of an adjusting screw where
from an auxiliary cam shaft driven from the
a quick over all adjustment of stitch length
main cam shaft as shown in the Patent #2307,
can be obtained; and
969 referred to but they are still rather bulky
Fig. '7 is an enlarged view of one of the cams
and difficult to install. Their bulkiness results
of the fashion mechanism. of this invention show
in the fact that they contain a considerable
number of plungers side by side in parallel rela
tion so that they may be engaged by an equiv
alent number of cams in individual rows on the
pattern drum.
Where a single fashion bracket has been used
ing particularly the spherical contour of its cam
30 ming surface.
As shown, the fashioning ‘mechanism consists
of a disc I having a‘rim ‘2 and a hub 3 keyed
to a shaft 4 which is the auxiliary cam shaft
of the knitting machine. This shaft may be
to regulate stitch length at both the main and
auxiliary sides of the machine some difficulty 35 driven, if desired, from the main cam shaft by
means of a train of gears such as that shown
has been encountered in providing suitable con
in Fig. 5 of Patent #2301969. Disc I is; recessed
nections which will insure that both knitting cam
on one side as shown in Fig. 3 to provide an an~
blocks respond accurately to the action of the
‘nular space between rim .2 and hub 3 for the
fashion bracket. It is not practicable to use
40 reception of a renewable insert 5 of ?ber or other
two fashion brackets of this sort, one for one
suitable'material which is kept in place by any
cam block and the other for the other because
suitable means such as screws 6 passing through
of space limitations. In addition, in such brack
the'?ber disc and entering disc I. Preferably
ets no means has been devised for making a
quick over all adjustment or for indexing the 45 the edges of ?ber insert 5 are tapered a little
as shown in Fig. 2 and the shape of its inner
various adjustments so that they can be repeated
face is such that all but its outer edge is spaced
without experimentation.
from the bottom of the recess. The reason for
Fashion brackets of this type are generally
this will be explained later.
used for obtaining the different stitch lengths
Rim 2 of the fashion disc is provided with a
required for major sections of a stocking. Pro
gressive variation of stitch length in a given 50 plurality of radially positioned adjustable cams 1
by means of which the length‘of the loops knit
section of the stocking such as in the leg by means
at the cam block with which the fashion disc
of‘ which it is fashioned or shaped have been
is associated may be determined throughout the:
secured by additional means. The invention of
knitting of the stocking.
this application is capable of performing all of
the operations of the usual fashion bracket and, 55 Each cam ‘I is in the form of a machine screw
having a thick head 8 which is mounted on a
ing the knitting of the leg or any other desired
' threaded stem 9 passing through a threaded open
part Of the stocking.
ing in the rim 2 of the fashion disc and into
?ber insert 5 as best shown in Fig. 2. The top
II] of each cam is spherical, formed from a cen
ter corresponding with that of the fashion disc
so that every part of this top is equidistant from
that center. Each cam is also pierced with one,
or more holes II whereby it can be turned by a
suitable wrench to screw it it in or out of rim
2 to vary its height. The purpose‘ of ?ber in
sert 5 is to grip the stem 9 of each cam ‘I so
It is well known that the stitches produced by
a knitting machine, when it is ?rst started and, ‘
particularly, if it is cold, vary appreciably from
those obtained after it has warmed'up. There
fore, the fabric produced'at one time is differ
ent than that produced at another. The amount
of adjustment required to compensate for this
10 can be ascertained but, obviously, it is not prac
ticable to adjust all of cams ‘I repeatedly. With
this invention this is unnecessary because a turn
that it will retain such adjustments Without the
of knob ll of lifter I3 in one direction or the
assistance of lock nuts or other inconvenient de
other will produce‘a corresponding change in
vices. The disc is shaped as described above and 15 the height of cam block l9 for all of cams ‘I with
as shown in Fig. 2 so that in case its grip upon
stem 9 becomes insu?icient it can be distorted
slightly by tightening up screws 6 so that it will
bear more ?rmly against stem 9.
out altering the indivdual adjustments of these
This adjustment of lifter I3 can be made ‘
very easily and as often as necessary without
stopping the machine so that no loss in produc
I The top of each cam 1 may also be provided 20 tion results. The same conditions are more than
with an indicator I2 as shown in Fig‘. 3 to en
able all of the cams to‘ be set in a given posi
tion, if desired, and to assist in indicating the
extent of small adjustments
likely. to occur each day. Therefore, to enable
the knitter to repeat the stitch length adjust
merits, the top of knob II is preferably indexed,
as diagrammatically indicated at 23 in Fig. 6,
‘Positioned directly above fashion disc I, so 25 so that he can set the cam block'at a glance
that it is free to rest upon any cam 1 directly
below it, is an adjustable lifter I3. The stem of
this lifter is threaded through the end Id of an
arm I5_ and also through a ?ber disc I6 held in
to' the same setting each day and make the
other subsequent adjustments in the same way."
The fashion disc of this invention occupies very
little space laterally of the machine so that much
a fork in the end I4. The 'upper end of lifter 30 needed space formerly occupied by the fashion
I3 is provided with a knurled knob H by means
bracket is available for’ other uses. This also
of which it can be screwed in or out. Fiber disc
makes it practicable to use a separate fashion
I6 serves the same purpose as ?ber insert 5, i. e.,
to hold lifter I3 in any of its adjusted posi
disc for each cam block and to so position it that ,
the connections’between it and the cam block can
35 be straight, rigid and short. All of these things
' As shown in Fig. 4, arm I5 is pivoted at a point
are important to insure accurate re?ection at
I8 adjacent the back of the machine. Knitting
the knitting cams of ‘minute adjustments of the
cam block I9 is mounted upon the usual plate
fashion cams. Also the fashion disc of this in
2|] which" in turn is supported by. a ?at vertical
vention is much less expensive and much simpler
slide ‘2i, the lower end '22 of which rests upon 40 to make and to assemble than the usual fashion
the top of arm I5 as shown. This point is more
or less midway between the two ends of arm I5.
By this arrangement a relatively large movement
of? arm I5 is re?ected in a small movement of
slide 2! and cam block I9 so that ?ne adjust
merits of loop length can be secured by rela
tively coarse adjustments of lifter I3.
Asisllming that the knitting. machine is ca
pable of 48 “moves,” fashion disc I is, preferably,
provided ‘with 48 cams ‘I, one for each of these
As will now be obvious, as one cam ‘l
passesfrom under lifter I3 and is supplanted by
Referring again to the indicator I2 on the top‘
of each cam ?, preferably these are made after
disc has been mounted on an arbor and all
of the cams ‘I adjusted to the same height meas
ured from the center of the disc. If the threads
on the stems of each cam ‘I are accurately cut
and the indicators I2 are all made to point in
the saline direction, all or any of the cams can be
adjusted to a desired height simply by lining up
the indicators I2.
I claim:
another cam; arm’ I5 will be unaifected or will
rise or fall depending upon whether the adjust
1. A fashion mechanism which includes a ro
tatable disc provided with a ?ange and a plu
ment of the new cam__ is the same or higher or
rality of radially adjustable, radially directed
lower than the preceding cam and this will be
proportionately re?ected in the vertical position
of cam block I9. Thus any number of different
cams on said ?ange each having a head with a
camming surface, all points of which are equi
distant from the center of said disc.
earn block adjustments up to 48 can be obtained
2. A fashion mechanism which includes a ro
although the maximum number is usually less 60 tatable disc provided with a ?ange, and a plu
than this for the reason that the fashion disc is
rality of adjustable, radially directed, cams hav- ‘
operated indirectly from the main cam shaft
ing stems threaded into said flange so as to be
some of the operations of which include more
supported thereby and turnable therein, the top
of each of said cams being a camming surface,
than one normal move. However, it is obviously
possible to operate fashion disc I from an inde 65 all points of which are equi-distant from the cen
ter of said disc.
pendent source so that its full complement of
3. A fashion mechanism which includes a ro
moves can be utilized.
" '
tatable disc provided with a ?ange, a ?brous liner
; Because each cam 'I is capable of extremely
small‘ adjustment a series of them may be used 70 within said ?ange, a plurality of adjustable, radi
ally directed cams having stems threaded into
in place of the usual long, graduated cam of the
?ange and said ?brous liner and means forj
usual fashioning disc such as that shown in Pat
distorting said ?brous liner.
ent #2,369,'780 to progressively alter thev height
1 ‘LA fashion mechanism which includes a ro
of cam block I9 and, consequently, the height of
the'stitch cams in relation to the needles dur 7 CR tatable disc provided with a ?ange, a ?brous liner,
within said ?ange, a plurality of adjustable, radi
ally directed cams having stems threaded into
said ?ange and said liner.
5. A fashion mechanism which includes a rotatable disc provided with a ?ange, a ?brous liner
within said ?ange and a plurality of adjustable, 5
radially directed cams held by said ?ange and
said liner.
6. A fashion mechanism which includes a ro
tatable disc, radially directed cams threaded
through the periphery of said disc and a ?brous
element upon said disc, said cams also being
threaded into said ?brous element.
Без категории
Размер файла
518 Кб
Пожаловаться на содержимое документа