US1111986A - Take-up for crochet-machines. - Google Patents

Description

S. W. AVIS.

TAKE-UP FOR CROCHET MAGHNES.

APPLICATION FILED JAN.9. 1913.

1, 1 1 1,986, Patented sept. 29, 1914.

INVENTO VV'IT ESSES* Q mm1/*J BY- rms ATTORNEYS== FHL' MORRIS PETERS C0 PHoTo-L-ITHO.. WASHING roN. D C.

UNITED sTATEs PATENT oEEICE. n

SAMUEL W. Avis, E HARTECRD, CCNNECTICIIL `AssIGNoRTo THE MERRow MACHINE COMPANY, 0E HARTFORD, CONNECTICUT, Aj CORPORATION 0E CONNECTICUT. j

TAKE-F FOR CROCHET-MACHINES.

` Specification of Letters Patent. Patented Sept, 29 1914, Application mea January 9, 1913; sriai No. 741,052.

To all whom t mag/concern: I

Be it known that I, SAMUEL W. Avis, a citizen of the United States, residingvat Hartford, county of Hartford, State of Connecticut, have made certain new and* useful Improvements in Take-Ups for Crochet-Machines; and I do hereby declare the following to be a full, clear, and c Xact de scriptioii of the same,.reference being had* to the accompanying drawings, forming a i part of this specification, `and to thepgures and lettersof reference marked thereon.'

This invention relatesto that class of i. crochet machinesl wherein a thread carrying implement passes` the thread through the fabric and a hook or looper seizes this thread alternately above and below the fab` ric and drawsit to the edge ofthe fabric,

interlooping the thread to forman .over` tion is to facilitate the formation of sym-f inetrical and uniform stitches, another is to facilitate altering the character Vof the stitch, and `a `further objecty is to piill `off and take up thread for the* stitch-forming implements at the properftimes and than has heretofore been possible'.`

Other objects will hereinafter become ap-` parent.. ,i Y `My invention is animprovenient onthe device set forth in an` application Serial No. 741,060, filed by Joseph M. Merrow` January 9, 1913, andconsists of certain new and useful; features, combinations and `de"-4 tails of lconstruction hereinafter described.

and claimed.

Referring,` to. the accompanying' "drawj ings :-Figure. 1 is a front lelevation ofa crochet machine containingan embodiment `of my invention. Fig. 2 is aleftlend elevation of the embodiment of my invention shown in Fig. 1 and of the adjacent parts* of the machine. Fig. 3is a front elevation of Fig. 2 with the moving parts in .another position, and having partsn removed and part of the frame being broken away, to

larly `,suitable for u'sejonwzbothlplain and .shell stitchy two thread crochetmachines of Iferred embodiment 'of l, been shown applied to a Merrow shell stitch machine wherein j PrO-.- vide nioreperfect..controlof the thread.

`mcknshaft 10. i -H'The numeral 13 indicates the chaining positions of the stitch forming implements more clearly. Fig.` 4 is a plan view of the .i

elements of my improvementand adjacent machine being shownin section. j

The particular embodiment of my devicev shown inthe drawings Isa form particuthe wellv known Merrow type.

Examples of plain crochet machines are set,V forth. and referred to` in United-StatesI kPatents #414,718,` issued November 12, `1889 and 497,587., issued May.' 16, 1893. In the shell stitch machines` the fabric fed only after several stitches havebeenformed at or near one point. The stitches are thus formed in clusters and when the fabric `is fed along they are spread `out at their outer .extremity and assume a` forni similar to `that of a fan or of a scallop shell. The

production of stitches of this nature is set .i forth in United States Patents #414,233

and 414,235, bothissued November 5, 1889; and machines for producing shell stitches lare shown in 448,722, issued March 24, 1891;

and 1,045,163, issued November 26 1912.

For thepurposel of illustration, a .pref

my invention has I indicatesihe medie, 2 the needle bar,

3 the link connecting the needle bar` clamp 4 to the vneedle bar` lever 5 yby means of the A screw 'studs` 6 pand 7; Vthe j oscillating recipiocatingyc'rochet .hook18 has a"latch 8,and is operatedin theusual manner. -I The supplementalthread `carrier9 kvibrates in a` path that is at an angle both to the axis `of the. needle bar, and. tothe path `of thek v hook, and it is adjustably secured to the u V nger, v14` theneedle plate, 15 the work v fplate, ljthe fabric being finished, 17 the .machineframe and 17a the frame head.`

`j` ,l The elements` 17? y; and .17c are bosses `on fthe frame head,`18is`the needle thread` ten-` sion, 19 isjthe `supplemental thread tension,'

2O is auneedlev thread guide and` 21 a supplemental `thread guide., .j j j.

In the operation of machines as thus far described, ias rthe needle ascendsandits eye `show `the disposition of the threads and the l it `draws the needle thread out of` the.

yemerges from the upper surface of the cloth,

i straight line lbetween the `guide eye l2O and the point where the thread penetrates the fabric, and thus draws a slight supply of thread and, as the needle descends the needle "-,eye reversing its action lets out this supply of thread to the crochet hook. `The supplemental thread carrier vibrating be- Atween the guide 21 and the edge of the l curs that $4there is undue strain imposed 'uponitlie -thre'ad v(':lur'ing portions of theVv stitch-forming cycle, causing irregularityA o stitchingjbreaking of thread and other imperfections yin the operation of the machine. It is the vparticular purpose of this i invention' tov reduce and eliminate these and t yjet-her undesirable tendencies, and further,

fit

"to control 'the conditions inV the stitches and thecliaracter of the finish. y thef'imp'rovement as illustrated, 22 is reciprocating take up eye having thread passages or eyes 22a and 22h in its head anda shank portion 22c which is secured t'the stud 7 b'ymeans of the set screw i 2 3'. "The head orbody portion of the screw "stud ismadel somewhat longer than usual oi'tha'tj the set screw 23 may be readily ac,-

ssible. -Being secured to a stud that is "iiiviXed relation ywith the needle bar, the

` style1-'22- is Areciprocated, ascending and defseending with the' ascent and descent of theneedlel' The three take-up threadarmsl 2 4, 25 'and 26,*havingthe thread passages erfeyes v24a, 25a and 26L respectively, are

secured-to the frame head 17 a' bythe screws 27, 28 and ,29, upon which the armsmay be swung to adjust the positiOn of the y? jllllereon'. t j

L Thwlleedle thread as it comes `from the tensionflS, is 'preferably threaded through theouter thread passage 22a in the eye 22, then through the eye 26b1 of the arm 26, and

l. then'thrugh the guide 20 to the needle eye. "The supplemental' thread as "it leaves the*I tensionlQ is threaded through the passage '24a'in the arm 24, -then through the passage 22b of the eye 22,. then through the passage L et the yarm 25, and finally through thfe guide' 21 to the supplemental thread carrier "The needle thread is made to appear y somewhat 'darker than *the supplemental throughout the drawings for the' sakefofclearness. The eye' 22L in descend! iiigtfbeinds or pulls the needlethread out of the"` straight line between the tension 18 and the eye 26a, `thereby pulling needle` vthread through the tension, and the eye 22a in'iising, "slackens this' thread bypermit! ting it to again approach the straight line between the tension and the eye 26a. The eye 22h, in descending from the top of the stroke about as shown in Fig. l, slackens the supplemental thread as it approaches the position shown in the dotted lines in Fig. 3 by decreasing the distance between the moving eye 22b and the two :fixed eyes 24EL and 25a, through which the supplemental thread passes. Then passing this position andcontinuing on to the bottom oi its stroke, the eye 22 pulls off thread by increasing the distance between the moving eye 221 and the two fixed eyes 24a and 25a. yThe ascending of' the Ieye 22b slackens the supplemental thread as 'it approaches a position midway between thetwo eyes 24 and 25@L and, passing this position in its continued ascent the eye 22b takes up a more orless definite amount of the 'slack in the supplemental thread according to the 'adjustment `of one or `both of the two fixed eyes. The supplemental thread and needle thread take-ups, coperate with the supplemental thread carrier, the needle and the crochet hook to ease up or slacken the thread at suitable periods, and also to take up the threads and to -pull the threads through the tensions at suitable times. The amount of thread pulled oli1 can be regulated within practical limits by changing the positionsot the thread eyes 24a 25a and 2621,'fthu`s making the loops of the finish tighter or looser as may be desired.

'Having thus described my invention, I claim, 1 v

l.l A take up for plural thread machines embodying reciprocating implement, two

Vpairs of stationary thread supporting elements cooperating with the said implement, one pair being arranged at one side of and in a line substantially parallel with the path of the implement and the other pair Ibeing 'arrangedone `on either side of and in 'a line inclined to the path of the implement. 2.A 'ln a two thread crochet machine including a needle, a needle bar and mechanism A:tor actuating the same, the combinaf tion of a pluralityfof threadsupporting elelments mounted one above the other on a stationary portion of the machine and at one side'of a line parallel with the needle bar, a' thread supporting element for one of the threads on the opposite side of said line,

a take up implement carried by a member of theA needle bar 'actuating mechanism in a 'path parallel with the needle bar, and oplerating'"upon both of the threads each between'two `independent points ofy support,

to pull ofi and control eachv of the threads independently of the other.

l3'. A"thread controlling system comprising a reciprocating thread carrying imple- `-ment and two pairs of stationary thread supporting elements with which the said thread carrying implement coperates, one pair being arranged on one side ofthe path of reciproca-tion ofthe implement andthe other pair being arranged one on each side' of the path of the implement and in a line diagonal thereto, means whereby the \distance between the respective elements of each pair of thread supporting elements may be adjusted, a supportfor the said thread supf` porting elements and means for carrying and actuating the thread carrying implement.

4. In a two thread crochet machine including a needle bar and mechanism for actuating the same, a thread pull off and take up embodying three thread guides mounted on a stationary portion of the machine at one side of aline parallel with the needle bar and in the direction of its reciprocation with relation to each other, a tension mounted at the sideof said line opposite to that on which the thread guides are located, a thread eye carried by the needle bar mechanism and reciprocating between the tension and the thread guides, and means for adjusting the thread guides relatively to each other and with relation to the tension, in the direction of the reciprocation of the thread eye. y

5. In a two thread lcrochet machine, a take up for the two threads embodying two pairs of thread supporting elements, a .reciprocating thread engaging implement, the thread supporting elements being arranged one pair at one side of the .pathof the reciprocating implement" and the other pair ment and in a line diagonal to said path,

the threads beingpassed through the reciprocating thread engaging implement intern mediate `the elements of the respective pairs of thread supporting elements, whereby one thread isconstrained at two points on the l same side of the path of the implement and the other thread is constrained at two points `on opposite sides respectively of the said path and in a line diagonal thereto, while thethread intermediate the points of constrainment is reciprocated in the path of the implement. i

6. In a crochet machine adapted to forming overedge stitches from a main thread carried by an eye pointed needle and a supplemental thread interloopedwith the main thread by means of a crochet hook, the comf bination of take up devicesfor the main and 4supplemental threads, thefsaid devices ncluding `a moving implement and two pairs of thread supports, one pair coperating with the implement for each thread, the path of movement of the implement being between the elements of the pair of main thread supportsand at one side of the line of the elements ofthe pair of supplemental thread supports whereby the main and supplemental threads are pulled off and controlled substantially `as shownI and described.

a SAMUEL W. AVIS.

Witnesses: 4j A. f GEORGE .ALLEN PAGE,"` W. A. W.`STEWA RT.

Copies of this patent may be obtained for ve cents each, by addrssingthe ;Cdminissioner of Patents,l

` Washington,Il).C.`

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