US1531548A - Island - Google Patents

Description

Mien 31,1925." -W.' H.'ENGLI$H-v KNITTED FABRIC AND METHOD OF. MAKING THE SAME Fil ly 1 22 e Sheet-Shee't 1 March 31. 192-5. I 1,531,548

- w. H. ENGLISH xu rr'rzb FABRIC AND METHbD OF MAKING THE SAME Filed July 27. 1922 6 Sheets-Sheet 2 March 31,1925. 1 1,531,548

' w. H, ENGLISH xunrsn mar'uc AND us'mon OF MAKING was SAME i e July 1922 6 Sheets-Sheet 3 6 sheets-sheet 4 Match 31, 1925. w. H. ENGLISH KN ITT ED'FABRIC AND METHOD OF MAKING THE SAME Fifd July 27, 1922 avwgnbot IIIIIIII N6 RO March 31.21925.

3 548 E GLISH Kama-b nm'kiq AND yETHoD OF MAKING'THE SAME March 31.- 1925. I 1,531,548 W.H."ENGLIS H v KNITTEPFAB RIC AND METHOD .0? MAKING THE SAME Fifed July 27, 1922 e Sheets-Sheet 6 ATTORNEY Patented Mar; 31, 1925.

UNITED SKTATES 1,531,548 PATENT '0FFICE.L

MILLER, or rnwrucxn'r, RHODE ISLAND.

KNITTED rmmc Am) amnion or MAKING THE same Application filed July 27, 1922. Serial No. 577,866.

To "all whom it co'rwern:

Be it known that I, WILLIAM H. ENGLISH,

a citizenof the United States, and a resident of Pawtucket, in the county of Providence and State of Rhode Island, have invented an Improvement in Knitted Fabrics and Methods of Making the Same, of which the following is a specification. 1

My invention relates to knitted fabrics of the general character described in my pend; ing application for United States Letters Patent Serial No. 490,260 filed August 6,

192 1, and relates more particularly to animproved method of manufacture and improved fabric of the character described, by

which important advantages are obtained. In the practical use of my improved fabric in connection with the manufacture of cord automobile tires, it has been found desirable in some cases to use fewer cords per unit width of the fabric thereby introducing a greater proportion'of voids which are filled with rubber during the calendering process, thereby producing a more thoroughly impregnated fabric, and decreasing the amount of fabric required without substantially reducing the strength of the finished product.

My improved fabric retains all of the advantages of the specific fabric illustrated in my said copending application, since the cords lie flat during the calendering process and in the building u of the tire carcass, since the cords are longitudinally displaceable with respect to one another in the same manner, and since the connecting threads run in the general direction of the cords instead of across them as in a woven cord fabric.

In eneral my improved fabric differs from t at of mysaid-copending application in that instead-of loops being lapped about adjacent single cords alternately, a series of three cords are operated upon, the loops being lapped about two cords of the series in one stitch and about two other cords of the same series in the next succeeding stitch, the middle cord of the series being thus alternately combined with the adjacent cords on each'side of it. t

In the drawings I have shown:

In Figure 1: a front elevation of my improved machine; 1

111 Figure 2: a vertical cross-section there- 0 In Figures 3 and 4, detail view showing of the quill;

In Figure In Figures 8 and 9, diagrams explaining the operation of my machine; and

In Figure 10, an enlarged view of my improved fabric. 1

It wil be noted that my machine is simi-. lar and in, general conformationto the machine illustrated in my said copening application, having the supporting frame 4 and needles 11 mounted upon the needle bar 13, and sinkers 15 mounted-upon the sinker bar 12, and the, guides 28 mounted upon the guide bar- 27. These parts are suitably operated in timed relationfo one another by means of the cams 21 and 31 operating the sinker and guide bars 24 and 29 respectively, and the cam 33 Vertically.

As shown in Figs, 2, 3' and 4 in the maserted the additional bar 60, carrying a pluoscillating the needle bar so WILLIAM H. ENGLISH, 01E PAW'IUCKET, 'RHODE ISLAND, ASSIGNOR TO- '7 a detail view of the cam mechanism operating the quills;

ch-.ine of my present invention, there-is inrality of quills 61, illustrated in detail in Fig. 6, through which; anadditional series of cords are adapted to be led in a manner similar to that in which the cords are led through the sinkers. In my improved machine there are this two setsof cords being fed. to the machine, one through the quills 61 and the other through the sinkers 15.

Th'e quills 61 are equal in number to the sinkers 15 and their movement is coordinated with the movement of the sinkers 15 in the manner which will be described hereafter.

The quill bar' 60 i'sli j cillated longitudi nally of the machine by means of the-cam 62 upon which roller 63 rides, which roller is mounted on pivotally mounted bar 64, one end of which is connected to the quill bar 60 as shown. A spring 65, or other suitable means, is' used to return the bar and to hold the roller in contact with the cam. As will be seen from Fig.1, the cams 21 and 31, which operate the sinker and guide bars respectively, are driven by "means of shaft 18, so as to have, a two to one relation of movement to the movement of the needle bar.

Mounted upon shaft 18 is the pinion 66 meshing witha driving gear 67, which ro-' shaft 18, and consequently to the movement ofthe guide. and sinker bars, is two to one;

and the relation of the movement of, the. gear67 to the movement of the needle bar is therefore four to one. It will be noted the configuration of the cam 62 is so chosen as to. cause the movement of the quill bar at the same rate as the movement of the sinker bar, but that the quill bar moves alternately with the sinker bar and in the opposite direc-. tion.

The operation is such as to cause each thread to be lapped alternately about pairs of adjacent cords, the thread exten'dingonly for the purpose of retaining from one pair of cords to the adjacent pair and at each pair of cords to cause a thread to be lapped about-the. cords with an adjoining thread in to bind 5 and 6, binding them with a loopsuch manner that there is formed .a plurality of chains each chain being formed of adj acent, threads with the cords lying in the-numbered 2, 4, 6, 8, etc.,' those passing wales. Referring to Figure 10, cords 1, 2, 3, 4, etc, it will be seen that thread first binds cords 4 and 5 forming there a chain loop with .thread I). This thread then ex? tends over tocords 6 and 7, binds these two together with the loopfd' and then extends formed in conjunction with thread 0". -In a similar manner, the threadfd, alternately binds cords 6 and 7 and 7 and 8. It will thus be seen that the arrangement of threads (and cords is such that the threads are looped about pairs of cordsholding them in accueasil longitudinally or -may if desired be withdrawn singly from the fabric. without disrately spaced relation in a direction trans.

verse to the cords, but the cordsmay be moved with respect to one another ru ting the fabric.

e difference between the operation of "the machine 'of my copending application tions of the cords and that of my present application will be made clear from consideration of Figs. '8 and These dia ams illustrate the posidl iring certain portions of the cycle of operations. 'Thus, if the vertical lines be considered to be the needle positions in the machine, and the i distance between any two horizontal lines be considered to be the portion of "the cycle occupied by a stroke .of a needle in onedirection, the positions.

indicated will be the positions occupied by the cords during that portion of the cycle. Thus, for-instance, referring to Fig.9, and .assumin'gthat the cords are numbered be-. ginning from the left 1, 2, 3, etc., the posi-' --tiozr of the..cog during'the down stroke of first pair of horizontal lines opposite the pothe needleswoul betliat shownbetween the would maintain during the upward movement of the needles as indicated by the word up. During the next succeeding downward movement of the needle the sink: ers and the cords would occupy their origpair of horizontal lines, and so on; itbeing evident that since the needle bar and the sinker bar bear a' one to one relation, a movement of the sinker bar occurs for each needle stroke, and "that the cords are alternately presented to adjoining needles.

r inal positions as shown between. the, third I In the operation of my improved machine,

however, the complete cycle of operations extends over four needle strokes instead of two as in the previous case, as will be seen by referringto Fig. 8 in which the conven-[Q I tions are the same as those of Fig. 9, except that additional cords passing through the quillshave been added, thesecords being firstdown-stroke of the needles the pair of cords 1 and 2 are presented to one needle,

(say needle a) the pair 3 and 4 to the next,

(-sa'y needle b); the pair 5 and-6 to the". next, (say needle 0) and so en. During the next succeeding upward movement of the needles, the cords 1 and 2, having been moved to the right, are presented to the next adjoining needle on the right (i. e. needle b),and all of the other pairs of cords are similarly moved. Upon the completion of this needle stroke the quill bar is operated to throwthe number 1, 3, 5, 7, etc. cords back to their original positions, leaving the sinker cords 2, 4, 6, 8, etc. in the positions to which they had been previously moved. It will thus be apparentthat cord 2 instead of being paired with cord 1', as during the previous ineedle stroke, is now paired with cord 3,

cord ,4 with cord 5, cord 6 with cord 7, etc.

the needle being'the same as the first posiv tion considered in connection with Fig. 8..

It will be evident that the cycle of operations, considering fore-the moment only cords 1, 2 and. 3, consists in presenting cords 1 and 2 to'needle a, then presenting this same pair of cords to needle 6, then presenting cords 2 and 3 to needle b,.and then resentii ( r cords 2 and 3 to needle (1: In

other words, cord 2 is alternately combined with cords 1 and 3, and the pairs thus formed are alternately presented to adjoining needles.

From the foregoing description it will be seen that the fabric produced by my improved machine is similar to that illustrated and described in my said copending application, but differ-cs from" it inthat instead of single cords being contained within the loops of thread, pairs of cords are looped, and that each cord is alternately combined within a loop with the adjoining cords on either side of it. a

What I claim is:

1'. The method'of making a fabric comprising a plurality of parallel cords and transverse threads. which comprises alternately looping a thread, about a cord and the adjacent cord thereto on one side thereof and the same cord and the adjacent cord thereto on the other side thereof.

2.-Tl1e method of making a fabric comprising a plurality of parallel cords and transverse threads which comprises alternately combining each cord with the adjoining cord on each side thereof within loops formed by said threads, each loop embracing two cords.

The method of making a fabric comprising a plurality of parallel-cords and transverse threads which comprises looping adjacent cords together to form pairs, each pair being within the same loop and successive pairs comprising different adjacent cords.

' 4. The method of making a fabric comprising ajplurality of parallel cords and I ping adjacent needles alternately to form a series of loops with the transverse threads and subsequent to the formation of said loops causing each loop to embrace a palr of.

parallel cords.

6. The method of making a fabric having .a plurality of parallel cords and transverse threads which comprises successively presenting a' pair of cords to adjacent needles and thereafter presenting the needies, in the alternate order, another pair of cords, one of the cords of said pair being one of the cords of the first "pair.

7. A fabric comprisingj'ja plurality -of parallel cords and transverse threads in which a transverse thread is alternately looped about a cord and a cord adjacent thereto on one side thereof, and. the same cord and the cord adjacent thereto on the other side thereof; 8. A fabric comprisin a plurality of cords and threads, a p urahty of loops formed by the-threads, each loop in-cludlng a pair of cords and each cord being successively paired with its ad acent-cord on each side.

In testimony whereof, I have signed my name to this application this 19 day of July, 1922.

WILLIAM H. ENGLISH.

Images