US1023763A - Straight-knitting frame. - Google Patents

Description

B. sALzER & G. WALTHER. STRAIGHT KNITTING FRAME. APPLICATION FILED AR. Z, 1908. 11.023,76 3.. Patented Apr; 16,1912.

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STATES PATENT onrucn.

BRUNO sALzER AND GUsTAv wArmHrzn.,l or CHEMNITZ', GEnMAn/g.

STRAIGHT-KNITTING FRAME.

Specification of Letters Patent.

Patented Apr. 16, 1912.

Appliance mea April a, 190s. Seriaino. aaa'iai.

. To all 'wwm t may 00m-em: Be it known that we, BRUN SALZER and GUsTAv WALTHER, both subjects of the King of Saxony, and residents of Chemnitz, Saxony, Germany, haveyinvented new and use- Improvements in Straight-Knitting 'Frames, of which the following is a specia;;knitting frame provided with the-mechan' ism-shownin Fig. 1 Figs. 4, 5, and 6. are side elevations of three different parts of the mechanism shown in Fig. 1.

The jacquard` apparatus comprises a roi tatable cardV prism 1l carried by lever-arms i 2 and adapted. to be lifted and lowered by the said'armsA 'A pattern-card 3 is'intermit- 'tently moved bythe prismand serves as in Y the known jacquard apparatus,'for lifting the jacquard needles4, as required bythe i pattern. The lower ends ofthe needles 4 are inthe needle-plate 5I(Fi 2) common to all the needles. `'.lhreehun redholes are bored' in this platev for three'hundred jacquard vneedles '4. 'Of these lholes those.. numbered 30 from 1 to280l serve .to receive the jacquard .needles which'form the pattern.' The group :of needles l to 20onthe left hand side ofA Fig; 2 is intended lfor those jacquard needles whichv form partof the mechanism which.

40 'constitutes the present invention.

Figs.` 1,; 3,' 4,15, 6 only l'representmechanism which -is connected to, or' co-acts wlth, the jacquard needles lv to 20,`

The machine to which my devicesare appliedL is the -well known cotton `type'straight fashioningknittingflmacliine. v

On the upper end surface ofeach jacquard. needle 4 rests the shank of a lifting wire 6, so that Jeach needle can' be engaged by a lifting blade 7 ofthe lifting bar 8. and lbe pulled together with the wire 9 engaging the other end of the lifting wire. Let it, fOreXamPle, be assumed that t-he jacquard needle 4 has dropped into a hole of thecard 3i, This causes the lift-ing wire 6 to drop ting machines with jacquard apparatus forh 'at the next movement in the direction of the arrow-head 10,1tl'1e lever 28 is..rotated bv over the edge of the lift-ing blade 7. Since the lifting bar i the directions indicated by the double-headed 8 is constantly oscillating in arrow 10; l1, it takes with it, during its next movement 1n the direction V10, the hook 6 60 together .withthewire 9 and all parts connected with the same.'

Of the wires marked 9 in 1 of which it-will be assumed that there 'are twenty,

each plays a certain denite part in the pro- 65 duction of the fabric. Some examples of the co-action of the wires with the mechanismV connected thereto will now be described. In order tjo produce a so-called slack course in the knitted web, the depth of lowering the 7 0 loops must be increased. This is effected by meansiof'the mechanism VI shown` in Fig. 1 at the right hand end of the -main shaft 21,- and this mechanism isin part shown in Fig. 6, in side-elevation. The shaft 29 is the part by which the said'depth ,is regulated. The device ,by 'which this is done is a well known partv ofsaid old Ina-v chine and 4is therefore not illustrated in the drawing. All that is necessary-to explaino here is how the jacquard apparatus 3, 4, 6, 7 9 automatically adjusts the mechanism VI (Figs. l and 6) to rock the shaft 29;V y

On vthe main or shogging shaftv 21, Eig. I, are arranged two cams 22 and 23- ont-he circumferences of which the rollers 24, 25am-to run. These two rollers are both Amounted on the same axle, vfixed tothe lever 27. `The roller`24 can be axially displacedon this 'axle by means of a forked lever 28,.--

latter'is 9 0 two-armed. and'pivoted to the lever 28;; the' lever 28 is rocked when the cord .12,` fasf tened to it is pulled 'or released, "The'cQI'd-- 12 passes vover two guide-bars113, 14, and' is at 15 attached to the wire 92j The springl 95 l acts lagainst the Apull ofthe-cord 12 and -moves the lever 28'andrrollerf'24back tof,-

their. initialpositions "vs rhen'I thevcord 12 isf released.

i For the normal measure of making loops, the lever 27 is Inovedby"the-roller- 2&5v

running on the cam 22. VvBut if the' jacquard needle 4 finds a hole in the card 3,! the vlever 6 is lowered upon the blade 7, and,

means of the wire 9 and cord 12 and the Vroller 24 is moved on to the largercam '23.

sa' j This-mechanism serves to regulate-.the exv.tobe produced.-

the shaft 29, to which it is rigidly fixed, and this motion-'of the shaft `causes a slack course Asa second example we will ndwexplain the mechanism marked Vin Fig. 1; thismechanism isshown in Fi 5l in side 'ele. vation. It, serves forthe ormationv of so-A called ladders or open wales er dropped stitches. To the shaft 21 are rigidly xed three disks 30, 31, 32. Of these, the central one,"3 0, is circular and concentric with the shaft; The two others are eccentric', and

'-their outlines, viewed .ih the direction of the axis'` in""'part" coincide with circumference of t e circular disk 30. Two rollers 33, 34 of equal size are pivotedA on a pin rigidly fixed to a'lever 35 which controls the operation of the old transfer or lace cover points for makin-g drop-work. By means of a forked lever 37 the roller 34 can be axially dis laced on its axle. vA vspring keeps the ro ers apart andalso tenslons a cord`,36,

which connects the forked lever 37 Vwith one of the'wires-9. At a certain stage of the op- -eration of the machine the cam-shaft 21 is, as

" is well known, axially displaced or shogged' in the, direction indlcated by an arrow in Fig. 1. By this movement the cam 31 is rbrought into the plane of theJ roller 33.

While the rollerv 33 is on the circumference l.of the circular l'disk l30, the lever 35 is mocam`131g''the lever 35 oscillates and imparts.

tionless,fbut when the .sa-id roller is on the movement to the coverer points. If the respective jacquard needle finds a hole inkthe 'card 3, the cord 36 is pulled and the forked lever 37 'pushes' the roller 34 Ion to the disk 32. The result is, 'that ladders are formed. As a .third example we will explainthe mechanism IV` shown in Fig'. 1 and-Fig. 4.

tent and direction of the lateral movementsv of the opener lace work mechanisms.. Wires cords 67 68, v69. The/disk isrotatable on a 9 are connectedby cords 67, 68,'69 with' theupper arm of a forked lever. 6 5. The lowerforked arm ofthe latter-.engages a .disk 7 0..

A spring 71 acts against the pull of the said pin fixed to a lever 7 2, and is laterally movable. VA small roller 74 running on. a cam 73 lifts the lever 72 momentarily during.

each revolution in` order that the roller 70 can be easily displaced. "The 6031973 has l ve steps 73, 73h, 73, 73d, 73e. On a pin division of the machine, dso that 'a bar 77 leading to the open-work needle-bar canbe moved step by step through distances .exactly equal to the needle-divisions, by means of the -roller 7 6 when the bar 66 is raised or shifted 'in the direction indlcated by the arlrow, and the roller 70= remains stationary,

the roller rolls on' the surface 73b of the can, and the lever 72 is lowered accordingl and -moves the bar 66 with it downwar The roller 78 is-then in contact with the surface, 66B; andthe needle bar is-shifted toward the-fright by means of the bar 77. If the needle 'J4 corresponding to the cord 69 finds a hole linthe card 3, the roller 70 is by displacement of the shaft 21 caused to` roll on the surface73 ofthe eccentric and the bar 66 is so far lowered that, the surface 66 comes into contact with the roller 78; the cover-mechanism 77 is by this means pushed to the right to' the .extent of two needledivisions. If` instead of the cord 69 the cord 68 or 67 is pulled, the' lever 65 is-r'otated through 'a lar er angle, owing to the said cords 68, 67be1ng attached nearer to the fnlcrum. The roller 70 is-thus caused to the surface 73l or 73,and the' roller 78 .the surface 66?l or 66.

Asa fourth and last plain. thegmechanism III shown in' Figs. 1 andk 3. This mechanism serves for axially displacing the cam-shaft 2l when the ma-u chine has beenproducing' plain fabric, and the production of an openwork pattern is to commence, or narrowing isto take place. This mechanism comprises a. counter, ,by which the number of vo 'erations of the same kind which directly .Follow each other is regulated. The lever 49 (Figs. 1 and 3) Aacts in theI usual manner to start the formation ofl the .opn-work pattern. The openewo'rk--always upper position by the lever 48. I-f the latbeings. VThe lever 50 acts to start the nar- 'ferentextent from the lever 49. This operationbegins' when thelever 50 swings upf 1 ward. '-In-the drawing lever 50 is.shown supported by the lever 47-.` When the lever 47 swings tothe left, the lever'50 loses its support and swings upward. Then the narrowing begins. The lever 48 `is moved by means of a rod 57, to whichis fixed a pin 59 abutting against the lever 48.- l A chain-wheel -40 isintermittently rotatedbya pawl 40 to move a chain `4() Ywhich is provided with studs 45.v lVhen a stud 45 passes underthe hooked'endof the 'lever 46 the latter4 isv moved upward. In

doing so' it strikes against a proJection of a lever 47', which `-.is pivoted at 47" and is Vexample we will exgins'when the lever`49 isloweredto shog the shaft 21. In the drawing the 1ever49 is-shownheld in its 110 ter swlngs to the right, thelever 49 loses f* its support, it drops down, andthe 'open-work" loaded at its free end a weight. l/Vhen the lever 47 is moved upward, vits lower arm 47 moves toward the left and releases the above mentioned lever 50. Then the nar rowing commences. To the lever 47 is fixed a pin in contact with the end of the lever48. lVhen the pin 59 moves the lever 48 toward the right, as described above, the leverv48 at the same time moves the pin 55, and the lever 47 is moved to the left and releases the lever 50. If therefore the bar 57 is moved toward the right until t-he pin 59 turns the lever 48 toward the right, not only the lever 49 is released, butk also the lever 50. But, if on the other hand, a stud 45 lifts the lever' 46, only the lever 50 is released and the lever 49 remains stationary.- The ratchet-wheel 33 is intermittently rotated by the pawl 39. The said ratchetwheel 38 is rigidly fixed to a small pinion 58, -whioi meshes with teeth of the bar 57.

The latter is therefore moved step by stepl v toward the right when the pawl 39 is operthere is an open spacebetween the left hand end of the bar 56and the right hand end of the bar 57 which is of the same lengthl as the travel of the bar 56. Vhile the pin 60 prevents the pawl 39 from moving the ratchet wheel 38, the parts 57, 48, 49 remain at rest. And while the bar. 56 is moved to and fr0 by the lever 58, its left 4hand end comes each time lightly into contact with the right hand end of the bar 57. But when the pawl 39 has moved the wheel 38 and bar 57 to the extent of one tooth, the bar 57, on coming in contact with the bar 56 receives a shortbackward thrust, which corresponds with a single toothsspace of the ratchet wheel 38. There are fourv distance- pieces 61, 62, 63, 64 which can be inserted singly or collectively between the two ends of the bars 56 and 57. Ofthese distance-pieces 1 the smallest, 64, is only so thick, that if it Aalone is inserted between the two ends of the bars, the displacement of the bar 57 is only equal to one tooth-space of the wheel 38.

The part 6 3 is twice as thick, the part 62 four times as thick and the part 61 eight consecutive rows 'of plain stitches.

The lever 58a Itengageswith its free end a.

'fifteen teeth. The parts 6l, 62, 463, and 64 are suspended from levers 51, 52, 53, 54, connected by cords 41, 42, 43, 44, to wires 9, so that they are controlled by the jacquard apparatus 3, 4, 5, 6, 7 If all four distance pieces have been placed between the ends of the two bars 56, 57 the pawl 39 must ascend and descend fifteen times before the pin 59 strikes against the lever 48 and releases the lever 49. Since the pawl 39 moves up and down' once for each 'row of stitches there will in this case be formed fifteen During the production of these rows, z'. e. during f teen revolutions of the camshaft 21, the jacquard apparatus 3, 4, 6, 7 is not required to' work. Herein lies the great value and advantage of the invention.

Having described the nature of our said invention we declare-that what we claim is :j- 1f InY a straight bar knitting machine, a group of needles, jacquard appara-tus provided with means for controlling said group of needles for producing' openwork patterns,

a sliogging shaft,mean's automatically adjusted by the jacquard apparatus for regulating the extent anddirection of the lateral movements of said shogging shaft, and a counter controlled by said jacquardapparatus to regulate `the number of consecutive rows of plain stitches produced while .the jacquard apparatus is out of action.

2. In a 'straight bar knitting machine, a group of needles, jacquard apparatus provided with meansfor controlling said group of needles for producing openwork patterns, a shogging shaft, means automatically adjusted bythe jacquard apparatus for regulating the extent and direction of the lateral movements of said shogging shaft, a counter controlled by said jacquard apparatus to regulate the number of consecutive rows of plain stitches produced while the jacquard apparatus is out of action, and means operatively connected with and actuated by said shogging shaft for controlling a group of needles for ladders. A

` Dated` this 'nineteenth day of March, 1908. In testimony.A whereof we ailix our'signatures.

WILHELM F. KORYCTKUY, KARL Yoran.

Copies of this patent may'he-obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. C.

producing slack courses and

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