US1449921A - Twist-lace machine - Google Patents

Description

Mar. 27, 1923.

A. E. STROUD TWIST LACE MACHINE Filed Aug.

21, 1920 2 sheebssheet 1 Max. 27, 1923.

A. E.-STROUD TWIST LACE MACHINE Filed Aug. 21, 1920 2 sheets-sheet 2 Patented Mar. 27, 1923.

UNITED STATES ARTHUR EDWARD STROUD, 0]? LONG EATON, ENGLAND.

TWIST-LACE MACHINE.

Application filed August 21, 1920. Serial No. 405,083.

To all whom it may concern Be it known that I, ARTHUR EDWARD STROUD, a subject of the King of Great Britain, residing at I-Iycroft, Wellington Street, Long Eaton, in the county of Derbyshire, England, lace manufacturer, have invented certain new and useful Improvements in Twist-Lace Machines, of which the following is a specification.

This invention relates to improvements in and applicable to twist lace machines and has for its principal object to provide means for introducing a weft thread between the warp threads and the bobbin threads.

Further objects of this invention are improvements in the weft thread carriers and improvements in the means for and in the method of actuating same.

According to this invention the weft thread is introduced between the warp and bobbin threads by means of a carrier pref-- erably extending beyond or up to the top of the bobbins when the same are in their central position. Such weft threads may be in the form of tubes through which the threads pass or may be in the form ofneedles through which the threads are threaded. There is preferably either one carrier at the front or back of the warp threads for each length or width of fabric to be made or one carrier at the front and back of the warp threads for every width of fabric to be made and such carriers are actuated to move backwards and forwards to lay their threads between the bobbin and warp threads.

In the accompanying drawings Fig. 1 is a sectional elevation showing elements of a lace machine having reference to the present invention and weft thread carriers in position.

Fig. 2 is a diagrammatic view showing one method of actuating the weft thread carriers.

Fig. 3 is a digrammatic view showing another method of actuating same, and

Figure 4 is a diagrammatical plan view of the machine showing the relative disposition of the weft thread carriers to the carriages and comb bars.

According to this invention as shown in Fig. 1, the bobbins l, bobbin threads 2, and warp threads 3, passing through thread guides I, are all arranged and operated in the manner customary to twist lace machines. The weft threads 5 and 6 drawn off spools 7, preferably mounted on the floor,

pass through weft thread carriers 8 and 9 up to the work.

The weft thread carriers may be in the form of tubes as shown or may be in the form of needles through which the weft carrier at either the back or the front of the warp threads.

For the purpose of description it is assumed that carrier 8 in Fig. l is shown as occupying a position to the front of warp threads 3 and carrier 9 a of such threads.

Referring to Fig. 1, carrier 8 moves in one direction to lay the weft threads 5 between warp threads 3 and bobbin threads 2. Bobbins 1 then swing through warp threads 3 along combs 10 being actuated as in the levers or go-through lace machines in the usual manner. The weft carrier 9 then moves in a direction opposite to or the same as that in which carrier 8 previously position to the back moved and lays the weft thread 6 between bobbin threads 2 and warp threads 3. Bobbins 1 once more swing back, weft thread 5 is laid between threads 2 and 3 and the cycle of movements is then completed. The bobbin threads 2 and warp threads 3 may be continually twisting with one another to hold the weft threads in position or such threads 2 and 3 may be held from twistm by holding the warps from being shogge Also, when twisting, each warp preferably twists with the same bobbin at each motion.

There may, however, be any convenient number of thread guides 4L actuated by a jacquard or other suitable mechanism for varying the pattern of the fabric.

The carriers 8 and 9 are conveniently mounted on horizontal rods or the like 11 and actuated in any convenient manner to move backwards and forwards in bearings 11 carried by the comb bars 12.- Also "the carriages are removed from the combs opposite the positions where such carriers rest.

In the method of actuating the improved weft thread carriers 13 as shown in Fig. 2 such carriers are mounted on a horizontal bar or the like 14 actuated through levers or the like 15 for increasing the travel of the carriers 13 and such levers are actuated through a rod or lever 16 by a jacquard or other suitable mechanism, conveniently a spring maybe provided asat 17 for'providing return motion of the carriers 13. These carriers 13 are preferably hollow so as to permit the were threads to pass therethrough as shown.

In the arrangement shown inFig; 3 the Weft thread carriers 18, pivotedat 19, are actuated to rotate about such a pivot by a rod or the like 20 connected tothe carriers at 21 and actuatedto move approximately hori zontall'y backwards and forwardslby a jacquard or. other ,suitablemeans. .A spring made whereby the eft thread carriers, are

idle at. certain periods.

Also, after the Wflft thread carrier has completed'its travel the Weftthread may be 'manner and such Work may be taken up at a constant or variable rate.

I claim:

1.*In a-twist lace machine, a plurality of bobbins, arp thread guides arranged between'said'bobbins,front and rear comb bars arranged adjacent saidwarp thread guides, bars slidably mounted on said. comb bars, and Weft threadca'rriers, mounted on 'fsaid bars. i 1 ,2.',In a twist lace machine, a pluralityfof bobbins, Warp, thread, guides arranged obetweensaid bobbins, front and;rea1=gc mb bars arranged adjacentfsaid Warp; thread guides, a substantially channelled ishape bearing ,membersecuredto each of said comb bars, a bar slida bly mounted in each oi said bearing Inembers,'and Weft thread carriers mounted on said bars. I

ARTHUREDWARD v. STBQUD,

Witnesses: i I

ERIQ POTTER, FRANK'A GUs'rUs Dam.

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