US2841185A - Selvedge protector - Google Patents

Description

July 1, 1958 T. E. BERGER "2,84 85 SELVEDGE PROTECTOR Filed July 8, 1954 '2 Shgets-Sheet 1 lIllllIllllllII|IIl|lllllll|lllllllllllllllllllllll! Fig.2 v

Theodore E. Berger Fig./ 4 QWWWWMMMMHHMMH HHIIVHII INVENTOR.

BY Wynn; M

July 1, 1958 T. E. BERGER 2,8 11,185

SELVEDGE PROTECTOR Filed July 8, 1954 2 Sheets-Sheet 2 Fig.3 32 5 H IH "1M 1:

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46 '9- W 72 66' 6'6 64 Y fl\ ll lllllll 75 48 77readore Berger 1N VEN TOR.

WWW m SELVEDGE PROTECTOR Theodore E. Berger, Kutztown, Pa.

Application July 8, 1254, Serial No. 442,029

2 Claims. (Cl. 139-195) This invention relates to a selvedge protector and more specifically provides an attachment for looms to prevent the usual kinking and drawing in of the selvedge and finds use in utilization with all types of loom wherein the warp threads tend to draw in and develop a kink.

An object of this invention is to provide a selvedge protector for engaging the warp threads forming the selvedge in spaced relation to the thread and being actuated by the lay beam during beat up wherein the protector will be moved out of the path of the reed during the period when the filling threads are beaten up into close relation through movement of the lay beam.

Another object of the present invention is to provide a selvedge protector that is adjustably secured to the breast beam at each end of the loom wherein the device may be adaptable for various types of looms and for various installations.

A further object of the present invention is to provide a selvedge protector having a pointed hook engaging the warp threads just in front of the woven cloth and just inside of the edging wherein the lay will come forward and is so timed that when the reed is adjacent the hook, the lay hits an actuating plate thereby lifting the hook upwardly out of the warp threads and out of the path of move-. ment of the reed thereby permitting the reed to beat up the filling threads for forming the woven cloth and immediately upon return of the lay, the hook returns to its lowermost position for engaging the warp threads just beyond the shed.

Still another important object of the present invention is to provide a selvedge protector for engaging the edges of the warp threads forwardly of the shed wherein the shuttle passes in front of the projecting means on the protector and wherein the operation of the lay during beat up retracts the projecting and engaging means on the protector and permits re-engagementof the projecting means when the lay returns to its final position.

Yet another important object of the present invention is to provide a selvedge protector which is simple in construction, versatile in utility, rugged, adjustable for various installations, well adapted for its intended purposes and relatively inexpensive to manufacture.

These together with other objects and advantages will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a top plan view showing the selvedge protector mounted on a breast beam of a conventional loom installation;

Figure 2 is a detail, transverse, sectional view taken substantially upon a plane passing along section line 2-2 of Figure 1 showing the relationship of the selvedge protector of the present invention to the components of the loom;

Figure 3 is a longitudinal, vertical sectional v1ew taken substantially along a plane passing through the longiice tudinal center line of the selvedge protector of the present invention;

Figure 4 is a transverse, vertical sectional view taken substantially upon a plane passing along section line 44 of Figure 3 showing the offset relationship of one of the cloth engaging hooks;

Figure 5 is a detailed, top plan sectional view taken substantially upon a plane passing along section line 55 of Figure 3 showing the details of construction of the device;

Figure 6 is a group perspective view showing the construction of the housing encasing the spring mechanism for returning the hook to its downward position.

Referring now more specifically to the drawings it will be seen that the numeral 10 generally designates the selvedge protector of the present invention wherein independent devices are provided for the left and right hand side of a loom generally indicated by the numeral 12 wherein the loom 12 includes the breast beam 14 for receiving the woven cloth thereover together with a suitble take up mechanism 18 or the like is provided for retaining the woven cloth 16 in taut condition. The warp threads 20 extend from the breast beam 14 to the lay beam 22 wherein the lay beam 22 is provided with the usual reed 24 all of which is conventional structure found in conventional looms. A plate 26 is attached to the underside of the lay beam 22 by suitable screws 28 engaging a slot 30 for adjusting the plate 26 for a purpose described hereinafter. In some installations, it may not be necessary to have the plate 26 attached to the lay beam 22 depending upon the particular construction and design of the lay beam 22.

Referring now specifically to Figures 3-6 of the drawings, it will be seen that each of the selvedge protectors 10 is provided with a housing generally indicated by the numeral 32 and including a lower right angular member 34 and an upper right angular member 36 that are assembled together for forming the casing 32. Each of these members 34 and 36 is provided with a projecting portion 38 that overlies each other and are provided with an elongated closed slot 40 wherein the projecting member 38 forms a flange and the slot 40 receive fastening screws 42 for adjustably attaching the selvedge protector 10 to the breast beam 14.

One end of each of the right angular members 34 and 36 is provided with recess portions 44 for slidably receiving a polygonal bar 46 having a projecting tubular member 4'8 extending outwardly through an aperture in the rear portion of the casing 32. The forward portion of the member 48 is formed integrally with the bar 46 and an offset portion 50 is provided for engaging the forward end of the inwardly extending flanges on the casing 32. A compression coil spring 52 is positioned in surrounding relation to the rod 48 and abutting between the end wall of the casing 32 and the inner end of the bar 46 for continuously urging the bar 46 outwardly of the casing 32. The bar 46 at its forward end terminates in a vertically extending plate 54 having an actuating or hunter plate 56 pivotally secured to its lower end by alinged hinge barrels 58 and a transverse hinge pin 6% wherein the bunter plate 56 may move from a position engaging the front portion of the plate 54 to a position in diverging relation thereto. A projecting stud 62 is secured to a suitable aperture in the plate 56 and extends through an opening 64 in the plate 54 and terminates in a transverse member 66 having a concave outer surface 68. A laterally extending pin 70 is positioned on the bar 46 rearwardly of the plate 54 jacent the pin 70 and the other end having a portion 84 secured to a reduced end 86 of the stud 76. The torsion spring 78 retains the pointed end 74 in its lowermost position. It will be seen that the pivotal end of the rod 72 is provided with an enlarged cylindrical member 88 forming a bearing on the transverse pin 60.

In operation, the selvedge protectors are positioned on the right and left hand side of the loom wherein the rod 72 has oppositely disposed offset portions 75 wherein the depending pointed end 74 is positioned in the warp threads 20 adjacent the side edge of the cloth and just forwardly of the woven cloth that has already been beaten up. After the shuttle (not shown) passes in front of the pointed end 74, the lay 22 moves towards the breast beam 14 for beating up the filling thread and just before the reed 24 reaches the pointed end '74 the actuating plate 26 on the lay beam 22 engages the hunter 7 plate thereby raising the hook 72 out of the warp threads 20 thereby permitting the reed 24 to beat up the filling threads and form woven cloth. As the lay 22 continues to move towards the breast beam 14, the rod 48 and bar 46 telescope into the housing 32 thereby permitting complete beating up of a filling thread. As the lay 22 returns to its normal position, the spring 52 urges the rod 48 and bar 46 back to its normal position and the torsion spring 78 urges the pointed end 74 of the rod 72 back into engagement with the warp thread adjacent the side edges thereof. It will be seen that the sharpened ends 74 present the drawing in of the warp threads and the consequent kinking and puckering caused thereby. This eliminates the usual waste and damage to the selvedge wherein the operation of the loom is most efficient.

As stated before, it is unnecessary to provide the lay beam with the plate in some installations. However, the adjustable plate together with the adjustment of the protector permits a wide range of installations.

From the foregoing, the construction and operation of the device will be readily understood and further explanation is believed to be unnecessary. However, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction shown and described, and accordingly all suitable modifications and equivalents may be resorted to, falling within the scope of the appended claims.

What is claimed as new is as follows:

1. A selvedge protector for attachment to a loom comprising an elongated hollow housing mounted on a stationary portion of the loom, an elongated bar reciprocably mounted in said housing, spring means normally urging said bar longitudinally outwardly of said housing, a depending plate mounted on the outer end of said bar, a bunter plate pivotally attached to the lower end of said depending plate, said depending plate having an aperture therein, a headed stud on said bunter plate extending through said aperture for retaining the hunter plate in position for engagement by the lay on the loom when the filler threads are beaten up into the woven cloth, a hook pivotally mounted on said bar behind said depending plate and projecting forwardly of the bunter plate, said hook terminating in a tapered point adapted to engage the warp threads adjacent the remote edges thereof, said projecting stud contacting the hook for raising the point thereof out of contact with the warp threads and out of the path of movement of the lay upon inward movement of the hunter plate, and spring means interconnecting said hook and bar for urging the hook into engagement with the warp threads.

2. A selvedge protector for attachment to a loom having a lay movable for beating up the filler threads into the woven cloth, said protector comprising a mounting bracket adapted to be adjustably mounted on a stationary portion of the loom, a bar member slidably mounted on said bracket, spring means urging said bar member outwardly of said bracket towards the lay of the loom, a hook shaped member pivotally mounted on said bar member, spring means urging the free end of the hook shaped member into engagement with the warp threads adjacent the edge thereof, said hook projecting outwardly beyond the end of bar member nearest the lay, and a bunter plate pivotally mounted on said bar member between the free end of the hook and the point of attachment of said hook-shaped member, said bunter plate being disposed in the path of movement of the lay and having means for engaging the hook shaped member thus withdrawing the free end thereof out of engagement with the warp threads when the filler threads are beaten up by the lay, said bunter plate effecting lifting of the free end of the hook-shaped member before the lay has moved to a final position whereby said spring urged bar member permits the lay to move to a final.

position adjacent the breast beam.

References Cited in the file of this patent UNITED STATES PATENTS 867,300 Poalk Oct. 1, 1907 1,454,787 Leighton May 8, 1923 1,715,962 Turner June 4, 1929 1,746,773 Iughes Feb. 11, 1930

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