US87508A - Improvement in knitting-machine - Google Patents

Description

To allwhom #may concern:

UNITED S'Ilt'IIlS PATENT OEEIcE.

nonna-'r PEBERDY, or rniLADELrHrA, PENNSYLVANIA, A'SsI'eNonTo JAMES onEIenroN, or SAME rLAcn.

IMFiRovEMi-:NT -IN KNrrTlrae-MACl-nrhs,`

Specification forming part of Letters Ifatent No. 87,508, dated March 2, 1869.

Beit known that I, ROBERT PEBEBDY, of Philadelphia, Pennsylvania, haveV invented a certain Improvement in Knitting-Machines; and I do hereby declare the following to be a full, clear, and exact description of the same.

My invention consists of two or more sets of self-acting orlatch needles arranged ina straightframe knitting-machine, as fully described hereafter, and in combination with two or more sets of th read-guides, and with devices whereby the needles may be adjusted laterally during the operation of the machine, so as to produce ornamental fabrics of various patterns.'

In order to enable others skilled in the' art to make and use my invention, Iwill now prol ceed to describits construction and operation, reference being had to the accompanying drawing, which forms apart of this specification, and in which- 1 11 gure 1 is a side elevation of my improved kn1ttingmachiue; Fig. 2, the same, showing the parts in a di'erent position; and Fig. 3, a sectional elevation on the line 1 2, Fig. 1.

A A are the side frames of the machine, which are secured to a suitable base-plate, and are connected at the top by a cross-bar, B, and to the latter is hung a swinging frame, C, in which slide theV usual guidebars ce', canying each a series of guides, bi To the side frames, are connected the ends of two parallel stationary knockin g-over bars, c cJ, the space between n which is just sufiicient for the passage ot' the fabric. Adjacent to the outersides of the bars c c' slide the needle-barsd d', to which are secured the usual latch-needles e, the bars d d'being so connected to operating parts of the machine that they will have a vertical reciprocating motion, one bar rising as the other descends. Some of the needlesc on the bar d are removed, to allow for the introduction to the row on the said har of needles' t i', secured to rods ff', sliding in projections g g' on the bar d, the rod f being bent so that its. axis shall be above the upper ends of the ncedles c, for a purpose described hereafter.

To a cranked portion of the rod j' is jointed one end of a rod, k, which is connected at the opposite end to a lever, E, hung to a bracket secured to the base-plate of the machine, and

against the innerend of lever bearsa' com,

h, on a shaft, D, turning in the side frames, A A'. The rod f, lever E, and cam h areso constructed, arranged, and connected to the operating parts of the machine that as the bar d approaches 'the limit of its upward motion the -rod f will be caused to swing outward, and thus carry its needles Vi beyond the needles c i', as shown in Fig. 3;

Each of the rods ff' is connected to devices operated by a J acqnard apparatus or by a pat; tern-wheel, so that a simultaneous 'sliding motion in opposite directions may be imparted to the said rods when the bar d is at `the limit of its upward movement, and the operatingparts ofthe machine are connected to any suitable .devices for imparting the usual movementsto the same, the construction and arrangement of these devices being toofamiliarto those skilled in this class of machinery to require illustration or description.

The threads are conveyed to the guides b, and are placed in loops on the needles in the ordinary manner, when the operation of the machine will be as follows: When either of the bars d d' is at the limit of its upward motion, the guides above this bar will be scoperated that a theont edge of Veach needle, the needle-bar will then descend, and the thread opposite each needle will be caught by the hook of the latter, and will be drawn downward through the old loop on the needle, which hangs over the edge of the bar c, closes the latch as the needle descends,and finally slips of the end of the needle, and onto the new loop. The threads are now conducted across the needles of the opposite bar, which has-'risen to the limit of its upward motion, and a series of new loops is formed on the needles of this bar, in the manner already described. Y v

So long as these operations continue, an ordinary ribbed fabric will be produced. When, however, an ornamental fabric is to ,be formed, a simultaneous sliding motion inl opposite' d1- rections is imparted to the rods ff' after the bar d arrives at the` limit of its upward motion, when the needles z 'i' will change places, the needles c" moving from the position shown in Fig. 1 in the direction of the arrow to the positions tlnead will he conducted across by the' needles i, `the latter simultab the cam E, to the'position shown in Fig. 3, sol

that the vneedles i, priorto their lateral movement, will be carried beyond the pathof the -needles `i. Owing to this change in the position of the needles, the threads will be crossed in such a manner'as toA produce a variation in the stitch, and an alteration in the character of thefabric, the extent and nature of alteration `being' determined by the character of the Jacquard cards, or the -shape of the patternwheel, and the arrangement of the needles.

In some instances three or` more rods, carryingthree or more sets of needles, may be used, Aand these adjustable needles may be so arl ranged as to produce either afa-bric orn amented throughout its entire width or only at the border.

When it is desired to produce a fabric ornamented on both sides, the needles of lthe bar d maybe arranged to operate in the same manner as those of the bar d.

Without claiming, broadly, the combination, on one frame, of two sets of needles, adjustable laterally, independently of each other,

Y I claim as myinvention and desire to secure by Letters Patent- 1. The combination of two or more series ot' self-acting needles, arranged-in a row and adjustable laterally independently of each other, -and a series of guides, b, operating in connection with the needles, substantially `as described.

2. The combination of the above, the two parallel knocking-over bars ce', and a second series of needles and another series of guides,

the whole beingarran ged and operatingsubstantially as specified.

In testimony whereof I have `signed my name to this specification in thepresence of two subscribing witnesses, Y

ROBERT PEBERDY.

Witnessesi y I l C. E. FOSTER, W. J ..R. 'DELANK

Images