US2344407A - Selvedge guard for looms - Google Patents

Description

March 14, 1944. v L HOLLOWAY 2,344,407

SELVEDGE GUARD FOR LOOMS Filed Feb. 15, 1943 Lam 2 #044 01 1/42 INVENTOR.

Patented Mar. 14, 1944 1 SELVEDGE GUARD FOR Looms Luther llolloway, Jackson, Tenn. I Application February 15, 1943, Serial No. 475,888

5 Claims.

This invention relates to looms and it has particular reference to a selvedge guard for damping the vibration of the warp threads on a loom.

The principal object of the invention is to provide a device adapted to be adjustably and detachably mounted on the front warp support of a loom to overlie the selvedge portion of the warp to damp excess vibration thereof which otherwise results in frictional wear on the underside of the sliding bar feeler holders and consequent breakage of the warp thread by reason of contact there of with the roughened undersurfaces of the said f eeler bar holders.

Another object of the invention is to provide a selvedge guard for looms of highly simplified construction which is not only efiective to minimize breakage of the warp threads, as stated, but also eliminates the necessity of replacing the bars which have become worn and impaired by constant frictional wear imposed thereupon by the vibration of the warp selvedge, all of which represents a loss in shut down time of the loom.

With the foregoing objects as paramount, the invention has particular reference to certain features of accomplishment, to become manifest as the description proceeds, taken in connection with the accompanying drawing, wherein:

Figure 1 is a fragmentary perspective view of the warp stop mechanism of a loom, showing the position of the invention thereon.

Figure 2 is a rear end elevational view of a selvedge guard constructed according to the invention, and

Figure 3 is a perspective view of the invention.

Continuing with a more detailed description of the drawing, reference is primarily made to Figure 1 wherein numeral I denotes a stand or bracket supported upon which is mounted the sliding feeler bar end support H which latter supports the sliding feeler or detecting bars I! and fixed associated detecting bars IS, the former being actuated longitudinally by means of the fingers l4. Disposed above and parallel with the front warp support I is the assembly of sliding feeler bar holders l6 which overlie the warp threads II, the latter extending transversely across the bar l5.

The foregoing mentions briefly the elements of a loom with which the present invention is directly associated and inasmuch as the type of mechanism represented in the drawing is well known to those versed in the art, it is considered that a detailed description thereof is unnecessary.

Accordingly, the invention consists of the device exemplified in Figures 2 and 3 and which comprises a body constructed of metal or plastic having relatively parallel legs I8, defining a saddle of substantially U-shape to conformably rest upon the front warp support l5. Integral with and extending at right angles to the longitudinal axes of the legs I8 is a tongue Hi. This tongue is bent upwardly at its junction with the legs at a in order that the plane of the tongue will be spaced slightly above the upper edge of the warp support 15, to define a space through which the warp threads I! may pass.

The ends of the legs l8 are apertured to receive a bolt 20, on which is threaded a nut 2|. In this manner the guard is firmly secured in position on the warp support l5, as shown.

In the absence of means to prevent, the warp threads I1, during operation of the loom, bounce or vibrate at the selvedge to such degree that they strike against the undersides of the feeler bar holders l6 at b. The continuous frictional wear thus imposed at these points on the bar holders results in a wearing away of the edges, causing them to become irregular and rough.

VVnile highly efiioient warp stop mechanisms have been devised to stop the loom upon warp breakage to minimize damage, the roughened surfaces of the holders l6 increase to a considerable extent the breakage of the warp threads and as a result, the shut down time for a loom is proportionately increased.

It is therefore the object and intent of the present invention, as described, to reduce to a minimum or eliminate entirely the wear upon the bar holders l6 which will obviate such breakage of the warp threads that would otherwise occur when contacting the bar holders, by limiting the vibration of these threads through the medium of the tongue I9, against which the selvedge threads bear. It is obvious that the manner in which the guard is mounted permits of ready adjustment thereof on the warp support l5 relative to the selvedge and further, it is apparent that a worn guard may be removed and replaced with a new guard without requiring that the loom be stopped for the purpose.

legs adapted to straddle the front warp support of said loom, and a right angular extension integral with and elevated above the junction of said legs and adapted to overlie the selvedge warp threads advancing over said warp support, to damp excess vibration thereof.

2. A selvedge guard for looms including a member having relatively parallel legs mounted adjustably on the warp support of said loom and a tongue originating at and extending at right angles from the junction of said legs to overlie and damp excess vibration of the selvedge threads of the warp moving over said warp support.

3. As a new article of manufacture, a selvedge guard for looms comprising a member havin relatively parallel legs adjustably and detachably connected to the warp support of said ioom and having means overlying the selvedge portion of the warp to damp excess vibration thereof.

' 4. As a new article of manufacture, a selvedge guard for looms comprising a member attached adjustably to a loom and having a tongue portion extending over and slightly above the selvedge of the warp to hold the same within predetermined limits in its vertical displacement upon the warp support of said loom.

5. As a new article of manufacture, a device for limiting vertical vibration of the warp selvedge of a loom comprisinga member attached to the loom and provided with a tongue portion having a free end and overlying said seivedge at a point spaced thereabove and means for adjustably securing said member to the loom.

LUTHER HOLLOWAY.

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