US353244A

US353244A - Peters

Info

Publication number: US353244A
Authority: US
Publication date: 1886-11-23
Anticipated expiration: 1903-11-23

Description

(No Model.) 5 sheets-sheet "1.

J, ADAMS.

GIRQULAR KNITTING- MACHINE. No. 358,244. Patented Nov. 23, 1886.

fim w QJW WITNESSES: INVENTOR 4 4/ 1 4;, an a,

(No Model.) 5 'Shets-Sheet 2.

J. ADAMS.

CIRCULAR KNITTING MACHINE.

Patented Nov. 23

INVENTOR @wfl WITNESSES:

Nv PETERS, FhcloLithcgnpMn Wahingwn. DC,

5 Sheets-Sheet 3.

(No Model.)

J. ADAMS.

CIRCULAR KNITTING MACHINE.

Patented Nov. 23, 1886.

v/V dam INVENITOR WITNESSES (No Model.) V V 5 Sheets-Sheet 4.

J. ADAMS.

CIRCULAR KNITTING MACHINE. 1%. 353,244. Patented Nov.'23, 1886.

WITNESSES JINVENTOR 2 .2 I %wm7m/w r 5 Sh eets -S h e'et 5;

(No Model.)

' J. ADAMS.

CIRCULAR KNITTING MACHINE.

Patented Nov. 23

INVENTOYR WITNESSES:

&73m LL 7341 0 Nv ETERs v Plmwum n her UNITED STATES PATENT Orricn.

JOSEPH ADAMS, OF PHILADELPHIA, PA., ASSIGNOR TO JOHN JbGLAZIER, WILLIAM H. GLAZIER, AND GEORGE R. REPPLIER, ALL OF SAME PLACE.

CIRCULAR-KNITTING MACHINE.

FJPECIPICATION forming part of Letters Patent No. 358,244, dated November 23, 1886.

Application filed June 11, 1886. Serial No. 204,829. (No model.) i

To all whom it may concern.-

Be it known that I, J osnrrr Anlurs, a citizen of the United States, residing in the city and,county of Philadelphia, and State of Penn- 5 sylvania, have invented a newand useful Improvemcnt in Circular-Knitting Machines, of

which the following is a specification, reference being had to the accompanying drawings, forming part thereof.

My invention relates to that class of knitting-machines in which latch-needles are employed. Its object is to provide a machine of the class mentioned upon which knitted fabrics having a plain knitted face on one side and a plush face on the other can be produced; and it consists as hereinafter specifically described and claimed.

In the drawings, Figure l is a plan view of a circular-frame knittingmachine embodying my invention. Fig. 2 is a detail plan viewof part of the machineto which my devices are applied. Fig. 8 is a detail plan View of the presser-wheel, showing the method of its operation upon the needles. Fig. 4 is an elevation, partly in section, upon the line y of Fig. 1, on an enlarged scale. Fig. 5 is a detail elevation in perspective of the needle ring of Fig. 4. Fig. 6 is an elevation of the needles in the positions occupied by them in that part of the machine which is shown in Fig. 2,when the parts of the machine in that figure occupy the relation to each other therein shown, and when the lugs of said needles are in the camway of the cams shown in Fig. 7, sight being 5 taken from the outside toward the center of the machine. Fig. 7 is an elevation of the cams by which the needles in Fig. 6 are operated, and with which their lugs are in contact when they occupy the positions shown in said last-named figure, sight being taken from the outside toward the center of the machine. Fig. 8 is an elevation of the lug, or of that part of the needle which comes in contact with and is operated by the cams. Fig. 9 is an elevation 5 of the needles in the positions shown in Fig. 6,

sight being taken from the center of the machine toward the needles, the thread-guides by which the threads are guided to said needles, the prcsser-wheel, the wire guards for controlling the latches, the threads employed to form the fabric, and the successive positions of the needles in their operation upon the threads to form the fabric. Fig. 10 is a detail plan view showing the positions of the needies at one point of the operation, of tying in the backing or plush thread. Fig. 11 is an elevation of the needles and fabric, showing the manner in which the backing or plush thread is tied in, the upper line 'of loops of said fabric being upon the needles.

Similar letters of reference indicate corresponding part-s wherever used.

The circular-frame knitting-machine, to which I have in the drawings shown my invention as applied, is of a well-known construction; and it consists, essentially, of a stationary circular bed or frame, A, which may be suitably supported in any desired manner, and which is provided with a circular revoluble needle-cylinder, B, having a shoulder or annular rim, O, upon its outer face, which takes into and rests and is adapted to slide upon a circular bearing or shoulder upon the inner upper edges of the circular bed A, whereby the cylinder B is supported.

Upon the upper outer face' of the cylinder B is shrunk a brass needle-ring, D, provided with vertical slots E, within which the needles work, the upper ends of the webs or walls which separate said slots being milled, as at F, to receive and hold the lower ends of the sinkers G.

The lower and upper cam-plates, Hand I, by which the needles are operated, are secured to and supported by annular rings J and K, ex-

ternal to the needle-cylinder, which in turn are mounted and supported upon the bed or frame A. These rings form the outer walls,

against which the front surfaces of the needlelugs Qrest and work. The needle-cylinderB is at its lower outside surface provided with a rack, L, which gears into and is driven by a pinion, M, supported in a bearing on a bracket attached to the bed or frame A, said pinion being in turn driven by gearing N and 0.

Revolution being given to the needle-cylinder Bin the direction of the arrow in Fig. 2, the needle-lugs Q will be caused to traverse the camway formed by the stationary lower and upper cams, H and I, with the result that a vertical movement of said needles will be occasioned corresponding to the shape of the lugs are caused to pass. Thread being guided to the needles through the thread-guide R, and a cam of usual form being employed, and the other threads and. cams and the devices pertaining thereto, as hereinafter described, being omitted, ordinary knitted fabric may be produced in the operation of the machine in a manner well understood.

- In my invention I have provided devices whereby a backing or plush thread is at desired intervals tied to the back face of the knitted fabric in such manner that it does not appear on its front face.

In order that the devices by which I accomplish this operation, as well as their mode of operation, may be more readily understood,

I will assume the operation of knitting to com" mence with the fabric-thread a, or at a point in the line of needles at which ordinary plain knitted fabric is produced. I will then describe the manner in which the machine operates to tie a backing or plush thread into the loops of the plain fabric so formed, as well as the further operation of the machine in the formation of the front face of the fabric in a manner by which the appearance of said plush-thread upon said front face is prevented.

In Figs. 2 and 9, R, S, T, and U are stationary threadguides of well-known construction, through which the fabric or face thread a, the backing or plush thread I), the tying-in thread 0, and a second fabric or face thread, (1, are respectively guided to the needles as the needles are caused to pass said thread-guides in the revolution of the needle-cylinder.

Revolution of the needle-cylinder being supposed in the direction of the arrows in Figs. 2, 6, and 9, and the cam-plates H and I being stationary, the operations of the cams upon the needles,and of the needles upon the threads, are as follows: The face 6 of the cam, Fig. 7, elevates a needle, as shown at 1, Fig. 9, to a point sufliciently high to permit it to catch the thread a ata point on said needle between its latch and its upper extremity. The facef of the cam now depresses the needle to the point 2, whereby the fabric-thread a is pulled through a loop previously'plaeed upon said needle. The face 9 of the cam now causes the needle to rise through the loop just formed thereon by the fabric thread a to the position 3 4, or sufficiently high to cause the needle to come into contact with the edge of the presserwheel V as said needle in the revolution of the needle cylinder is passed in front of said wheel. This presser-wheel is provided with slots A A A Fig. 3, which permit the needles standing opposite to said slots to take thereand is caused by the thread-guideSto lie back of such needles as take into the slots A A A of the presser-wheel V, and in front of such needles as do not take into slots in said wheel,

as shown, respectively, at 9, 10, and 11, and 8 and 12 in Fig. 10. The needles are now, by the face of the cam, caused to rise to the position 6 to 11, where, by means of the brushwheel IV or by a clearing-wheel, should that device be employed, the backing or plush thread b is caused to lie between the needles, as described, and upon a plane lower than the lower end of their open latches. At this point of the operation a tying-in thread, 0, is guided to the needles, which are thereupon caused to descend by the face It of the cam, with the re sult that said tying-in thread is caught by said needles, and is, by such needles as the backing or plush thread lies in front of, looped around the backing thread. The needles are now caused to further descend by the projection m of the cam to position 22, with the result that the needles in front of which the backingthread I) has been laid descend below it and rise upon the other side of said backing-thread, the tying-in thread a remaining in contact with the needles at points above the lower ends of their open latches. The partial drawing down of the needles by the face 7c of the cam, and the subsequent completion of the descent of said needles by the projection m of the cam, permits a slack in the thread between the needles from 16 to 22, and prevents the fabric from being too tightly knitted. The needles are now-caused by the facen of the cam to ascend to the position 26 to 30. At this pointa second fabric-thread, d, is guided to them through the guide U. The-needles are now, by the face 1) of the cam, caused to descend to the position 33, with the result that the tying-in thread 0 V and the fabric-thread d are together pulled through the loop which has previously been formed by the fabric-thread a. The last-named loop is thereby thrown off, and a new loop, con sisting of two threads, 0 and d, is formed upon said needle, as shown at 34. to 38, Figs. 9 andll A brush-wheel, 7 IV, or a clearing-wheel, may, if desired, be employed at the points shown in Figs. 1 and 9.

It will be understood that the length of the loop t, formed on the back face of the fabric by the plush or backing thread I), will be equal to the distance between the needles which operate to loop the tying-in thread 0 around the plushthreadas, for example, the distance between 34 and 88, Fig. 1land that the length of this loop maybe varied according to the number and position of the slots A A A in the pressen wheel V.

The machine shown in Fig.1 is one in which a series of sets of devices such as are shown in Figs. 2, 3, 7, and 8 are employed. The number of such sets is limited only by the circumference of the machine to which they are applied.

It will be understood that the fabric-thread a and the cams by which the needles are operated to knit it into plain fabric may be dispensed with, and that a fabric of the character described and provided on one side with loops may be made by the threads I), c, and d, and the needles and cams above described as operating in connection with said threads, the result being that the loops upon the back of the fabric so produced will be closer together than in the fabric produced by the operation hereinbefore explained.

X and Y are wire latchguards sprung from the stationary bed or frame of'the machine or from an attachment thereto, and arranged to lie in close contact with the needles upon their outer or latch sides to prevent thelatches from swinging up and closing by reason of the sudden and quick movement of the needles'or the jarring of the machine.

The presser-wheel. V and brush W may be pivotally and adjustably supported in the usual manner upon the bed or frame of the machine or upon an attachment thereto.

It will be understood that a circular-frame knitting-machine provided with the devices or with a series of sets of devices such as are above described, and operated in the manner hereinbeforc set forth, will produce a fabric having a clean or plain knit face on one side, the other side having loops of anypredetermined length. The color, number, and relative positions of these loops to each other may, according to the form, number, and location of tho presser-wheels employed, and the color and kind of threads used to make said loops, be regulated to meet the requirements of the fabric to be produced. It will further be understood that these loops are prevented from appearing upon the plain surface of the fabric by reason of the fact that the thread which forms that face at the points at which the backing or plush threads are tied thereto consists of two strands, one only of which is employed to tie the backing or plush thread to the fabric, the second strand being carried through the same loops as the first strand without having previously been looped around the backing or plush thread;

It will also be understood that if a fabricthread, or a series of fabrie-threads such as a, be employed to form a line of loops to which the backing-thread is not to be tied, it should be of substantially the same thickness as the aggregate thickness of the tying-in thread and the second fabricthread, which in the formation of the fabric are together drawn through the loop previously formed by said fabricthread.

The loops of backing-threads formed upon the back face of the fabric may, after the fabric has been removed from the machine, be broken and treated in any well-known manner to form plush upon that face.

Having thus described my invention, I claimv 1. In a circular-frame knitting-machine, in combination, first, latch-needles; second, mechanism for throwin g predetermined needles out of line with the remaining needles; third, mechanism for placing a backing or plush thread between the needles so thrown out of line and needles remaining in line and below the lower ends of the open latches of said needles; fourth, mechanism for guiding a tying-in thread to said needles; fifth, mechanism by which the needles are caused to descend below the plushthread and to again ascend, whereby such needles as have been thrown out of line are caused to rise on the opposite side of the plushthread to that on which they descended; sixth, mechanism for guiding a fabric-thread to the needles above their latches; seventh, and mechanism to cause said needles to descend and pull said fabric-thread and tying-in thread together through a loop pre-,

viously formed upon said needles, as specified.

2. In a circular-frame knitting-machine, in

and below their latches; seventh, mechanism for feeding a tying-in thread to said needles; eighth, mechanism by'which said needles are caused to descend below said backing-thread, and whereby such needles ashave been thrown out of line with the others are caused to rise upon the other side of said backingth read and loop said tying-in thread around said backingthread and to retain said tying-in thread in contact with the needles above their latches; ninth, mechanism for guiding a fabric-th read to the needles above their latches; tenth, mechanism by which said needles are caused to descend and carry said tying'in thread and said fabric-threadtogether through the loops previously formed on said needles by the firstnamed fabric-thread; eleventh, and mechanism by which said needles are caused to rise so that the said newly-formed loops thereon shall be below the latches of the needles, as specified.

3. In a circular-frame knitting-machine, in combination, first, latch-needles; second,mechanism for throwing predetermined needles out ofllne with the remaining needles; third,mechanism for placing a backing or plush thread between the needles so thrown out of line and needles remaining in line and below t-helower ends of the open latches of said needles; fourth, mechanism for guiding a tying-in thread to said needles; filth, mechanism by which said needles are caused to descend below the plushthread and to again ascend, whereby such needles as have been thrown out of line are caused to rise on the opposite side of the plush-thread to-that on which they descended; sixth, mechanism for guiding a fabric-thread to the nee IOO IIC

dlcs above their'latches; seventh, mechanism to cause said needles to descend and pull said fabric-thread and tying in thread together through loops previously formed upon them, 5 and, eighth, a guard or guards located in close proximity to the latch sides of said needles at points above the lower ends of their latches, and at points in the line of needles at which the loops and threads of which the fabric is 10 formed are upon said needles below the latches,

as specified.

4. In a circular-frame knitting-machine, in combination, first, latch needles; second, thread-guides R S T U; third, cams H and I,

I5 adapted to actuate said needles; fourth, presser wheel V, and,fifth, brushwheel WV,as specified.

5. In a circular-frame knitting-machine, in combination, first, latch needles; second, thread-guides R, S, T, and U; third, cams H 20 and I, adapted to actuate said needles; fourth, resser-wheel V; fifth, brush-wheel IV, and, sixth, latch-guards X and Y, as specified.

In testimony whereof I have hereunto signed my name this 3d day of June, A. D. 1886.

JOSEPH ADAMS.

In presence of- WM. 0. STRAWBRIDGE, J. BONSALL TAYLOR.