US1464034A - Manufacture of twist-lace net - Google Patents

Description

Aug. 7, 1923.

1,464,034 J. FARMER v MANUFACTURE OF TWIST' LACE NET Filed July 12 1922 Ell Patented Ange 'Y, 1923.,

aaiansnasrans, or nor'rnvsnen, ENGLAND.

Manor-Across or rv'visr riaon NET.

Application filed July 12, 1822.

7'0 all whom it may concern:

Be it known that l, James FAnMnn, a subject of the King of Great Britain, and a resident of the city and county of the city of Nottingham, in England, have invented certain new anduseful Improvements in the hflanufacture of Twist-Lace Net, of which the following is a specification.

This invention relates to improvements in the manufacture of twist-lace traverse not, on what are known as plain net machines, in which the carriages are arranged in two tiers one of which is traversed in the reverse direction to the other. lts object is to produce what is known as a filet not, that is a net with a square mesh.

.Jkccording to this invention, the vertical bars of the net are comprised of two bobbin threads and two warp threads twisted together, one warp thread being twisted in the reverse direction to the other, whilst the horizontal bars are formed by two bobbin threads, one of which is carried from left to right, and the other from right to left.

The accompanying drawing is a diagram showing the disposition of the threads, in a twist-lace traverse net with a square mesh made according to our invention.

In producing this net. a full set of warp threads is employed in the machine, but it is divided into two half sets A and B, one of which half sets A is comprised of right and the other set B of reverse twist threads.

Each half set of warpthreads is controlled by a separate and distinct thread guide-bar, there are therefore two of the latter, one being disposed at the back of the other, and their traversing movements are as follows When both tiers of carriages are in the front comb-bar, one the back guide-bar which controls the reverse twist warp threads B, traverses one gate'or carriage space to the left, and the other front guide-bar which controls the right twist warp threads A traverses one gate or carriage space to the right. When both tiers of carriages are in the back comb-bar, both thread guide-bars return to their initial positions again. When one tier of carriages is in the front cornbbar and the other tier is in the back combbar (intermediate position) both thread guide-bars stand.

The result of this action is that pairs of warp-threads, that is, the corresponding threads in each half set A, and; B,- twist Serial No. 574,867,

with pairs of bobbin threads(], that is, the

threads of the corresponding carriages in the front and back tiers.

In order to form the horizontal bars of the net, the front comb-bar is shogged or traversed at the required regular intervals, that is, every four, SiX, eight or more motions of the machine as follows When both tiers of carriages are in the front comb-bar, the latter moves to the left or falls one gate, andwhen during their movement into the back comb-bar, the back tier of carriages has moved into said back comb-bar whilst the front tier is still in the front comb-bar, (intermediate position) the latter rises or moves to the right two gates.

As a result of this action, two ties are formed by the bobbin threads in one motion, one ti C being formed by a bobbin thread C traversing to the left, and'the other C by a bobbin thread C traversing to the right, both of which are nipped together by the warp threads, forming the double horizontal bars of the net, as previously described.

The front comb-bar returns to its initial position again when both tiersof carriages are in the back comb-bar.

In order that the twist in the vertical bars of the net may be evenly formed, the takeup of the work is efi'ected by the point bars every motion of the machine, instead of at longer intervals as is more usual in this type of machine.

It will be understood that the same result would be obtained by reversing the traversing movement of the thread guide-bars and the front comb-bar.

In order to obviate the necessity for using right and reverse twist warp threads as previously described, the twisting of the warp and bobbin threads be reversed say every repeat, that is to say, the warp threads which twist one way in producing one repeat of the net, twist the reverse way in making the next repeat. In this case the warp threads maybe all right or all reverse twist threads.

The net may be also produced but perhaps not quite so perfectly, by traversing} the front comb-bar in the following alternative manner. It falls one gate or carriage space when all the carriages are in the back comb-bar, rises one gate when the carriages are in their intermediate position, falls one gate when the whole of the carriages are in the front comb-bar and rises one gate when the carriages are in their intermediate position again. i i r V In this system of working the ties to the 5 right and left are not formed on the same, but in successive motions of the machines. What I claim as my invention and desire to secure by Letters Patent is A twist lace traverse net with a square 10 mesh in which the vertical bars arerforrned by two bobbin and two warp threads the latter being twisted in reverse directions round the former and the horizontal bars are each formed by two bobbin threads one of which is traversing to the right and the 15 other to the left throughout the net.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

JAMES FAR-MER. Witnesses:

F. C. SHELDON, L. A. SHELDON.

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