US1318275A - herbert - Google Patents

Description

H. HERBERT.-

.SEWING MACHINE.

APPLICATION -F|LED NOV. 12. 1915.

Patented Oct. 7,1919.

2 SHEETS-SHEET l. I

Hal.

H. HERBERT.

SEWING MACHINE.

mwucmou man NOV. 12. 1915.

Fla. 3'.

Emilie--- =I-IAROLD HERIBERT, O-F- LISCARD, ENGLAND.

SEWING-MACHINE.

Specification of Letters Patent.

Patented Oct. 7, 1919.

Application'filed'November 12, 1915. "Serial'No. 61,191.

To all whom it"may concern:

Be it known that I, HAROLD HERBERT, a subject of the King of England, and resident of Liscard, in the county of Chester, England, have invented new and useful Improvements in Sewing-Machines, of which the following is a specification.

This invention has reference to machines for repairing cuts, holes, or the like, in textile fabrics, or for reinforcing or strengthening the sameyand more particularly it relates to the class of machine used for this purpose, in which a plurality of needles are employed and arranged, preferably in parallel, and move together, and have threads passed through their eyes; and beneath the table over which the work passes there is employed in connection with the needles chain stitch or thelike looper devices.

The object of the present invention is to improve this stitching or work performed on the fabric, and to increase or better distribute the reinforcing or strengthening effeet.

The machine according to this invention is constructed and ada ted to cause the loops from a row of nee les and stitches or work performed by one descent and action of the set of needles, to be'so moved by the looper or like device, as to be caught by the loops formed in the next succeeding action of the needles, and locked by the same.

The loops are arranged and adapted to be moved from the different needles diagonally, so that the loop from one outside needle of the set will be moved so as to be caught and locked by the next needle in succession,

in the subsequent action of the needles;

while the loop of the final needle on the other end of the set is not moved diagonally, but longitudinally or parallel wlth the stitching, and is caught by the ordinary looping method; while the loop from the needle next it, will also be caught by the looping of this last needle; The work and mechanism of this last needle may be of the ordinary chain stitch type.

The different rows of stitchin or work in the fabric operated upon are t us linked up, one in the other, in the transverse or diagonal manner; and therefore the supporting or reinforcing and strengthening of the fabric by the work or stitching, is better distributed, being extended over the surface.

The stitching or looping on the under side .throat aperture is. tongues extend in the direction of feed of of the work, possesses the knitting'principle of and mechanism for carrying out the invention; Fig. 3 is a plan showing the throat plate arrangement; and Fig. 4: 1s a view of the under side of the piece of material showing the form of stitchingand work'effected by the machine- Figs. 5 to 7 illustrate a modification.

Referring to the drawings, a is the general frame of the machine; I) are the needle holders of which there are five in the case shown; 0 are the'needles; and (Z is the work plate or table. The holders and needles are coupled together and {are adapted to be moved simultaneously up and down. i

The means by which the loops of all but one of the needles are made and held, in the case shown, consists of a plurality of hooked beaks 6 carried on a sliding plate f, and havingmovement obliquely to the vertical plane in which the needles stand and move; while the loop of the remaining needle is made by the looping device 9 carried on a lever 9 hinged at 9 The slide 7 carrying the loopers 6, works in a guide 7 and is operated by a reciprocating bar h from the driving gear of the machine through a connecting rod 2'.

The looper g in the case shown is also adapted to be oscillated about its pivot by part of the rod or slide h.

The work support cl is formed with a throat aperture 70, having one longitudinal edge, that is the edge nearest the path of the needles, formed with projections between 'whlch theneedles pass in the sewlng operation. The opposite edge is straight. A second plate overlies and is secured to the work plate, such second plate having resilient tongues Z which overlie and rest'with slight spring pressure on the work support cl, extending beyond the straight edge of the The free ends of these the fabric.

As the needles project through the fabric and below the same and ascend a loop of thread is formed, which loop is picked up by the appropriate looper, and moved laterally with respect to the needles to a position in the loops, as will be plain from Fig. 4L. 7

vforward, thus arranging the Loop diagonalQ The next adjacent needle in its next descent passes through the fabric, between one side of the previously formed loop moved'byw the ing still inposition) and the looper, and the looper is-then withdrawn leaving the loop end on the needle. v

The final looper 9 however, instead of moving to position its loopbeneath the next ZlCljitCGDt needle, 1s operatedv to carry lts loop into the succeeding path of the, same needle which forms the loop. This interlocks the final loops and so interlocks all Fig. 4 shows the form of the work or stitching performed and how the'loopsare nioyed ,obliquely, so that thethread from one needle is moved into the position thatthe outer end of each loop will stand in the position coincident with that of the next needle in sequence, and'will in the next stroke be caught by this needle in this stroke; and it also shows the looping of the last needle in series, which is an ordinary chain stitch looping; this last needle passing through the loop of its own thread made in the last descent of the needle, and also through'the loop from the needle next it; and this last needle and its loops hold the end loops of the .c hainloopings of the series of loops performed bythe other needles of the set.

' In the modification shown in Figs. 5 to 7 the needle bars and needles '5, care shown obliquely arranged to the directlon of feed of the fabric, in which case the loops will move at right angles'to such line of feed, the

,final looper moving in the direction of the line of feed.

The stitching resulting from this form is shown 1n Flg. 7, the inalnloops'being 1n the I line of fabric feed and the final loopsbeing ,fat right angles thereto.

i In either form all loops are inteifitted oneiwith another, and the final loops which hold the full ser -iesof any; one operation of the needlesare interlocked one with another;

The loops are formed around,- that is beneath the projections ofthe comb-like edge 7 of the throat aperture 7c .of the work support Copies of this patent may be obtained for five cents each, by admires i J v. w tqn {;c !a-" v-1-. I

fingers at the free ends thereof. Vlooper beneath such needle, (theloop er be- What is claimed is I f I V 1. In a sew ng machlne, the combination "of a plurality of alined needles a plurality of alined loopers, means Q for moving :the

loopers at an angle to the path of movement of the needlesfto engage the loops of such needles below the fabric and to carrysuch loops into the 'pathof the next adjacent needle, wherebyto permit such adjacent needle to pass through such positioned loop, and anvadditionallooper to cooperate with the loop of the final needle, and means for moving; such additional lo'oper to move the loop of such final'needle" into a position'to be engaged by the final needle in its next movement through the fabric, whereby the loops of needles other than the final needle are interengaging and theloops of the final needle interlocked one with anotherto secure all loops; 7 a i 2. In a sewing machine, a plurality of alined needles, a plurality of loopers arranged to move at an angle to the path of movement of certain ofthe needles, means to operate the loopers to carry the loops of the respective needles into the path of movement ofthe next adjacent needle, an additional looper for the final needle, one ofthe first mentioned loopers carrying theloop of the needle next; to the final needle into the path'of and so as to be engaged by such final needle, and means for operating such additional looper to carry the loop of the final needle at an angle to the loop o'fthe other needles and intothe next succeedingipath of movement of the final needle, whereby the loops of the final needles are interengagedx" 7 each other;

with the loops of adjacent needles with In testimony whereof I have signed my" name to thisspecificationin thevpresence of two suhscrlbingw tnesses;

ie h ee ssmsf i t e t HAROLD f

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