US17612A - Joseph vickerstaff - Google Patents

Description

UNITED sTArEs PATENT OFFICE.

JOSEPH VICKERSTAFF, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TOMARTIN LANDENBERGER.

KNITTED FABRIC.

Specification of Letters Patent No. 17,612, dated June 16, 1857.

To all 'whom it may concern:

Be it known that I, JOSEPH VICKERSTAFF, of the city of Philadelphia and State of Pennsylvania, have invented a new and useful Improvement in Knitted Fabrics; and I do hereby declare the following to be a full, clear, and eXact description of the same, reference being had to the accompanying drawing and to the letters of reference marked thereon.

My invention relates to improvements in that class of ornamented knitted fabrics in which threads of various colors are used to produce the required pattern, and my improvement consists in knitting simultaneously and in juXta-position to each other two separate thicknesses and interlocking the same together at any required intervals by transposing the threads for forming the loops of one thickness, so as to form the loop of the other thickness, alternately; thereby producin an ornamental fabric with a variety o differently shaped and differently colored figures on both sides which present a lain uninterrupted surface of loops the atter differing in no respect, at the oint of transposition of the threads, from ot er portions of fabric, and both sides of the fabric being free from the loose unknitted threads common to other knitted fabrics, which are ornamented by the transposing of differently colored threads.

On reference to the drawing which forms a part of this specification Figures 1 2 are diagrams representing the transposition of differently colored threads so as to produce my improved ornamented knitted fabric. Fig. 3 a diagram in perspective representing the result of such transposition.

A represents one of a row of threads for knitting one thickness of my im roved fabric, and B one of another row of t reads for knitting another thickness, the thread A being red and the thread B blue. As seen in Fig. 1 the red thread A is being operated upon by the needle C and the blue thread B by the needle D. Should the needles continue to o erate thus without the position of the threa being altered, two se arate and distinct fabrics would be prodjuced. By transposing the threads however as seen in Fig. 2, that is causing the red thread A to be operated by the needle D, and the blue thread B by the needle C, the two thicknesses become interlocked, at the point where the transposition takes place, and if the transposition be continued at intervals as the fabric is being knitted the red and blue thread will appear on and disappear from, both sides of the fabric, as seenin Figs. 2 and 3.

If a series of different colored threads (as seen in the perspective view Fig. 3) be used for both thicknesses of the fabric and the transposition of these threads occurs at equal intervals it is evident that a plaid pattern with the colors alternating at equal distances apart, as regards the length of the fabric will be produced, the uniformity or regularity of the changes of colors, as regards the width of the fabric, de ending entirely upon the arrangement of an change of colors, and shades of colors in, the two sets of threads.

By using a great variety of different colored threads and transposing the latter at irregular intervals, the most elaborate plaid patterns may be produced. My im roved fabric however is not confined to plaid patterns only. Instead of transposing the whole of the threads simultaneously, single threads or any number of threads in each row can be transposed by jacquard or other apparatus so that the threads may be made to a pear on, and disap ear from, both sides of t e fabric at irreguar intervals thereby producing an endless variety of irregular figures.

The fabric thus manufactured presents, on both sides, a plain uninterrupted, knitted surface, the loops being uniform throughout, and differing at the point of transposition of the threads, in no respect from the loops, of other portions of the fabric. At the same time the loose unknitted threads, which have hitherto been unavoidable in the manufacture of ornamental knitted fabrics are avoided.

I do not claim exclusively the production of a knitted fabric ornamented by the transposition of threads of different colors, but

I claim and desire to secure by Letters Patent as a new article of manufacture and commerce- A fabric knitted with threads of different colors and comlposed of two separate thicknesses interloc ed, during the process of knitting, at any required intervals, by trans- In testimony whereof, I have signed my Eosing the threads in such a manner that a name to this speeication before two subnitted fabric may be produced, both sides seribing Witnesses. j of Which shall present a plain uninterrupted JOSEPH VICKERSTAFF. 5 surface of loo s and free from the loose un- Witnesses:

knitted threa s common to other oranmental HENRY HOWSON, knitted fabrics. WILLIAM E. WALToN. y

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