US980591A - Lay structure for wire-looms. - Google Patents

Description

W. 0. BROWN. LAY STRUCTURE FOR WIRE L OMS.

APPLICATION FILED snr 907.

980 ,591, Patented Jan. 3, 1911.

Z SHEETS-BHEBT1.

W. 0. BROWN.

LAY STRUCTURE FOR WIRE LOOMS.

APPLICATION FILED SEPT. 4, 1907.

Patented Jan. 3, 1911.

2 SHEETS-SHEET 2.

GOO000G)OQOoQO900 OOOO'OOO/OQQQOOOOO UNITED STATES PATENT OFFICE.

WILFORD 0. BROWN, 0F HOLYOKE, MASSACHUSETTS.

LAY STRUCTURE FOR WIRE-LOOMS.

Specification of Letters Patent.

Application filed September 4, 1907.

Patented Jan. 3, 1911.

Serial No. 391,342.

To aZZ whom it may concern:

Be it known that I, VILFORD C. BROWN, a citizen of the United States of America, and resident of Holyoke, in the county of Ham pden and State of Massachusetts, have invented certain new and useful Improvements in Lay Structures for Tire-Looms, of which the following is a full, clear, and exact description.

This invention relates to the lay structure of a loom, and more particularly one which is comprised in a loom for weaving wire cloth which usually is of great width and requiring, therefore, a very wide lay.

The object of the invention is to provide in a most simple and practicable manner means for constraining the shuttle against forward deflection during its shoots through the shed.

Heretofore, especially in looms for wcaving wire cloth, various expedients have been adopted for keeping the shuttle closely rela tively to the reed in its projection from one side of the loom to the other, the same in some cases involving the employment of a carrier by means of which the shuttle is positively conveyed from one side of the loom to the other. Such expedients have been comparatively complicated, expensive, and liable to derangement, and consequently undesir able.

As a new and improved means for constraining the shuttle in its proper courses back and forth transversely through the shed, the present invention consists of a lay having a series of downwardly depending pins mounted and arranged in a longitudinal line of the lay,transversely of the loom,-on the portion of the lay beam which forms the upper boundary of the shuttle race, suitably forward of the reed so that such pins during the rearward positioning of the lay project downwardly into the shed by passing between strands of the upper set of the warps thereof, and while constituting no impediment to the free traversing movements of the shuttle, insure that the same will be maintained always in its desired course forward of and parallel with the reed.

The improvements are illustrated in the accompanying drawings, in which,

Figures 1 and 2 are cross sectional views of a lay and the equipments constituting the present improvements, together with the breast beam and harness, and showing the shed,-the first view showing the parts in the beating up position, and the second view showing the lay in its rearwardly swung position, and in relation to the shed through which the shuttle is being, or is about to be, shot. Fig. 3 is a front elevation of the parts shown in Fig. 1, and Fig. 4: is a plan view of the lay.

Similar characters of reference indicate corresponding parts in all of the views.

In the drawings,-A represents the lay, B, the breast roll, C the harnesses, and X the shed constituted by the warp wires or strands w.

The lay beam comprises upper and lower separated horizontal members a and Z) carried at the lower end portions of arms or swords (Z, understood as pivotally mounted at the top of the loom, substantially as may be observed in wire weaving looms illustrated and described, for instance in Letters Patent of the United States issued Oct. 15, 1901, No. 684,536, and March 8, 1904, No. 754,192.

f represents the reed located in the usual manner across the opening between the up per and lower members a and Z) of the lay.

The lay cap or upper member of the lay is provided with forwardly extending flange or ledge 9 through which are engaged a series of metallic pins or studs h h, the lower extremities of which protrude for a proper distance below the bottom surface of the upper lay beam member a and the extension ledge 9 thereof.

The lay is supported by the swords d d hung in the usual manner at their upper ends, and the warps constituting the shed have a downward and forward inclination as shown in the drawing when the lay is in its rearward position, there dwelling for a short period (see Fig. 2). Under these conditions the ledge g has its under surface'in proximity to the top of the shed, and all the pins of the series have their depending tapered portions protruding through the upper warps and into the shed, and form, so to speak, a row of depending pickets protruding nearly but not quite to the level of the center of the shuttle j, thus constituting impediments, extending along the lay entirely from one sword to the other, against any deflections of the course of the shuttle from the required rectilinear traverse in close adherence to the reed.

It will be noticed in Fig. 2 that the points of the depending pins do not have their dispositions below the weft delivery opening indicated at z of the shuttle.

Inasmuch as the weft is more or less slack at the side of the loom from which the shuttle is shot up to the time the shuttle approaches the middle of the shed, the pins, as represented in Fig. 3, are shown inclined downwardly and inwardly, but all arranged in a substantiallytransverse plane.

By reason of the inclination of the pins in the reverse directions at the outer ends of the lay, the slack weft at the commencement of the shuttle shoots may not be hooked around any of the pins to be caught and broken thereby; but, on the other hand, in case the slack weft should fly up and strike any one of the pins it will easily slide off therefrom and be carried across through the shed with no liability of breakage,--it being appreciated that so soon as the shuttle approaches and passes the middle of the lay the weft wire will have been drawn taut and carried in a horizontal line slightly below the points of the row of pins.

A loom having the lay thereof equipped as shown and described has, in actual protracted use been found entirely reliable and satisfactory. And while the lay structure has been illustrated and described with particularity, minor modifications and changes of a manifest character may be made without departing from the invention or sacrificing any of the advantages thereof.

I claim r 1. A loom lay having means for constraining the shuttle against forward deflection in its shoots through the shed, consisting of a longitudinally arranged series of down wardly depending pins mounted on the portion of the lay beam which forms the upper boundary of the shuttle race forward of the reed, an intermediate portion of the pins being vertically set while those at the lateral regions of the lay beam are inclined downwardly and inwardly.

2. A loom lay comprising the swords and upper and lower separated horizontally parallel members extending forward of the reed, the upper member being constructed with the forwardly projecting and longitudinally extending ledge having a series of pins extending therethrough and downwardly depending therebelow substantially as and for the purpose set forth.

3. In a loom, in combination, the harnesses and breast roll arranged for imparting to the shed, constituted by the warps, a downward and forward inclination, and a suspension lay comprising a horizontal member adapted in the swinging movements thereof to have such horizontal member alternately in proximity to and upwardly removed from the shed, said horizontal member of the lay being provided with means for constraining the shuttle against forward deflection in its shoots through the shed, consisting of a series of downwardly depending separated pins mounted and arranged in a longitudinal line on said horizontal member, which pins during the rearward positioning of the lay project downwardly into the shed by passing between strands of the upper set of warps thereof, and which upon the forward positioning of the lay are withdrawn upwardly out from the shed.

Signed by me at Holyoke, Mass, in presence of two subscribing witnesses.

VVILFORD C. BROVN.

\Vitnesses GRACE A. ALLISON, ROBERT CADDEN.

Images