US1454787A - Selvage guard for looms - Google Patents

Description

7 May 8, 1923.

C. M. H. LEIGHTON SELVAGE GUARD FOR LOOMS Filed Nov. 3 1921 v 2 Sheets-Sheet 2- lnVenTor.

Chcmle s- M.H..Lei'

Patented May 8, 1923.

um so s r CHARLES H. H. LEIGHTON, OF MILFORD, NEW HAMPSHIRE, ASSIG'NOR 'I'O DRAPEB i CORPORATION, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

SELVAGE GUARD FOR LOOMfi.

Application filed November 30, 1921. Serial No. 518,946.

To all whom it may covwem: I

Be it known that I, CHARLES M. H. LEIGH- TON, a citizen of the UnitedStates, and resident of Milford, county of Hillsborough, State of New Hampshire, have invented an Improvement in Selvage Guards for Looms, of which the following description, in connection with the accompanying drawing, is

a specification, like characters on the draw-- in% representing like parts.

his invention relates to selvage guards for looms and has for its object to provide a simple, efiicient and practical device and one which may'readily be attached to existing loom structures. 4

he invention has for its object to provide means for insuring the formation of an even regular and straight selvage which is frequently diflicult to secure especially with certain classes of warp and filling, although the device is adapted for use with any type of warp and filling and may be utilized when ever found necessar In the weaving, rinexample, of padding material for garments wherein it is common to employ cotton warp and jute fillinggreat difiiculty has heretofore been experienced inproducing a straight, regular and perfect selvage. Jute filling is a rather coarse yarn and is more or less rough because of knots,

bunches or other irregularities. Thisinterfereswith the unwinding of the filling and produces a tension on the running filling suflicient to pull the selvage out of line. Any irregularity or jog in the selvage is objectionable not only to 'theimanufacturers of clothing using the paddin ,but because it interferes with the proper nishing of the adding. In the finishing operation, the fabric 1s subjected to heavy pressure in a mangle and when the selvage is irregular the fabric is frequently rolled back or doubled along the selvage and sometimes cut or damaged.

selvage shall have the same thickness, the same tension and elasticity, and shall'be even and regular throughout. v,

The invention in its preferred form ,comprises a device mounted upon the usual temple which has a movement rearward and forward of the 100m frame and this movement is utilized to secure the operation of the selvage guard. I

An important feature of the" invention and will be particularly pointed out in the the device embodying the invention with re- The present invention insures that the resides in the control of the movement of the selvage guard by the cloth itself so that the guard is withdrawn out of the way after it has performed its function and so as not to interfere with the lay or other moving part of the loom upon the beat-up.

. These and other objects and features of the invention will appear more fully from the accompanying description and drawing claims. I

The drawings disclose a preferred form of the invention in connection with an ordinary form of temple only those parts di-- rectly connected with the invention being illustrated.

In the drawings; Fig. 1 is a plan view of a portion of the loom and of the cloth and warp adjacent the fell at one side, disclosing a preferred em bodiment of the invention;

Fig. 2 is a side elevation of the construction shown in Fig. 1; Fig. 3 is a detail in front elevation of the constructon added. to the'usual' temple and shownin Fig. 1 as embodying the invention;

Figs. 4, 5 and 6 are somewhat diagrammatic views in perspective showin the dif-. ferent ositions of the arm and ngers of lation to the fell, selvage and cloth.

As the invention is applicable to any type of loom wherein there is a frame, a lay, shedforming mechanism, a shuttle and shuttle picking mechanism, and other usual instrumentalities it' is unnecessary to illustrate such features which are familiar to those skilled in the art.

A common form of temple is, however, illustrated because this is utilized as the sup port for the features embodying this invention. As the construction is generally similar at both ides of the loom itais sufiicient only to refer to that at one side.

The temple stand 1 is secured by screws 100 2 to the loom frame. forward of the fell. The shank 3 of the temple has a rearward and forward sliding movement in the stand 1 and carries at its rearward end the temple head 4. A heel 5 depends from the temple v105 head and is struck by the la on the beat-up to move the temple forwar y all in a well known manner. I

The sheet of warps 6 extends through the shed forming mechanism forwardly to the 110 breast'beam and the fell 7 of the cloth extends normally directly in the rear of the temple when in its rearward position as shown in Figure 1.

In the preferred construction. of the. invention illustrated a bracket 8 shown as: an angular plate is secured to the top of the temple head and this may be effected, as illustrated, by means of the usual screw 9 and nut 10 employed in locking the cap. and pod of the temple together.. The depend-- ingleg 11of the bracket 8 is. located inwardly away from the temple head and in n this le 11 is rigidly mounted a horizontal stud w ich thus extends laterally from the temple. This stud is; provided with a head 13, with a, shoulder '14. abutting the leg 11 and with a threaded reduced portion 15' carrying; a nut 16 by which the stud is locked in. ce.

arm in the form of a flat metal plate. 17 is pivotally mounted or journalled on the stud 12, being for that purpose bent to embrace the stud. Preferably the plate 17 is bifurcated at its forward end and betweenthe bifurcations a helical spring 18 is mounted on the stud 12 with one end engaging the plate 17 and the other end engaging the temple head so that this spring acts normally to depress the rear end of the plate.

he plate 17 at its rear edge is provided with an outer finger 19 and an inner finger 20. These fingers are preferably ormed from the metal of the plate itself being bent at right angles thereto and are provided with smooth round'lower ends.

The construction and proportions are. such that when the temple is in its normal rearward osition as shown in Figs. 1 and 2 the outer finger 19 is positioned rearward of the fell and adjacent the selvage and so as to extend transversely across the plane of the.

cloth. Preferably, as shown, the finger extends immediately inside of the selvage warp or warps through the shed. WVith the device in this position the inner finger 20 extfzeilllds through the shed and rearward of the.

- When-the beat up takes place and the lay strikes the heel 5 of the temple carrying the temple forwardly the inner finger 2O rides up over the fell onto'the cloth and thus the engagement of the fell of the cloth with the finger 20 acts to raise the plate 17 and con- .sequently the outer finger 19 and to withdraw the outer finger and carry it out of the way before the filling is beaten in.

Thus the device is under the control of the cloth and the withdrawing action is certain whatever may be theexact position of the outer finger 19 laterally with respect to the selvage.

The operation of the device is now apparent and is illustrated in .Figures 4, 5 and 6.

In Figure 4 the plate 17 and the fingers 19 the plate 17 has moved forwardly and that the inner finger 2O riding up ove-r the fell onto the cloth has lifted the outer finger 19 and withdrawn it out of, the way. As the lay retreats and the temple moves rear-- wardly the plate 17 and fingers,v 20 and19 again assume the original position as shown in Figure 6e As the shuttle is now picked to the opposite side of the loom the pick 22' of filling is carried around the outer finger 19 as shown in Figure 6 so that the: strain on the selvage is relieved because the finger 19 holds the filling firmly atthe selvage. The finger also provides a little looseness in the filling when the pick is beatenin there. There is thus no danger of any unevenness of construction or tension resulting at the selvage. As the lay moves forwardly to beat in the pick 22 the plate 17 is again raised through the action of the inner finger 2O engaging the fell 21 andthe finger 19 is withdrawn out of the way.

It will thus be seen that there is provided a very simple and efiicient construction which may readily be adapted to existing looms and which positively and uniformly guards the selvage and insures the required results.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. In a loom comprising a frame, a lay, shed forming mebhanism, a shuttle and shuttle picking mechanism, and a temple mounted for forward and rearward movement on the frame with the forward-movement taking place on the beat-up, an arm pivotally supported on a horizontal axis from the temple and provided with downwardly projecting inner" and outer fingers, the arm when depressed with the temple in rearward position acting to position the outer finger rearward of the fell adjacent the selvage and extending transversely across the plane of the cloth and acting to position the inner finger through the shed rearward of the fell whereby on the pick of the shuttle to the opposite side the filling is drawn around the tle picking sume a position adjacent the fell and the selvage prior to the pick of .the shuttlevtoward the opposite side whereby the filling is drawn around the finger and the strain on the selvage warp relieved and means acting by engagement with the cloth to withdraw the finger from the filling before the said pick is beaten in.

3. In a loom comprising a frame,ia lay, shed forming mechanism, a shuttle and shutmounted om the frame, and means to move the finger into a position rearward, of the fell, adjacent the selvage and extending transversely across the plane of the cloth prior tothe pick of the'shuttle to the'opposite side whereby the filling is drawn around the finger relieving the strain onthe selvage warp and means acting by engagement with the cloth to withdraw the finger from the said position before the said pick of filling.

is beaten in.

4. In a loom comprising a frame, a lay,

, shed forming mechanism, ashuttleand shuttle picking mechanism, anda temple mountmechanism, a finger movably ed for forward and. rearward movement on the frame with theforward movement taking place on the beat-up, a stud extending laterally from the temple, a plate journalledon the stud and provided with downwardly projecting inner and outer fingers, means aetin-g\ normally to depress the plate, theplate whendepressed with the temple in rearward position acting to position the outer finger rearward, of the fell, adjacent.

ger upon the beat-up and forward movement of the temple riding up over the fell onto the cloth and acting to raise the arm and withdraw the outer finger before the said pick offilling is beaten in..

In testimony whereof, I have signed my name to thiss ecification.

CHA LES M. H. LEIGHTON;

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