US2042415A - Loom temple - Google Patents

Description

May 26, 1936- w. I. STIMPSON ET AL LOOM TEMPLE Filed Aug. 14, 1955 Patented May 26, 1936 UNITED STATES PATENT OFFICE LOOM TEMPLE Application August n,- 1935, Serial No. 36,177

6 Claims.

The present invention pertainsto loom temples of the type embodying a plurality of'cloth-engaging rollers for laterally stretching the cloth as it is being woven.

Prior to the present invention, loom temples as manufactured commercially have been restricted to not more than two rollers, both of which were positioned on the same side of the cloth. Such temples have proven entirely satisfactory wherever the character of the clothwoven was such as to permit the use of pin-studded rollers such as are disclosed, for example, in patent to W. I. Stimpson, No. 543,789, granted July 30, 1895. However, such temples have often proven to be incapable of properly holding or stretching'cloth which is of a character not'permitting the useof the pin-studded type of 'rollers. Improved surface covering materials have not rendered the temples capable of satisfactorily holding and stretching the latter fabrics.

We find that the inability 'of'loom temples of the type mentioned to properly stretch' the cloth is due, not to insufiicient frictional qualities of' the roller covering materials, but to insufiicient pressure of the cloth against the roller. That is, even comparatively smooth-surfaced rollers have ample grip upon the cloth so long as-the cloth is taut but will permit the cloth to" slip whenever it becomes slack. Since the cloth being woven is slackened each time a pick of filling is beaten in, the prior two-roller temples necessarily lose their grip on the cloth each pick.

The principal object of the present invention is V to provide a loom temple havinga plurality of cloth-engaging rollers which may have comparatively smooth surfaces, which temple shall be capable of maintaining proper grip on the fabric even when the latter is slack.

To the end mentioned we have devised a temple wherein at least two parallel cloth-engaging'rollers are positioned on one side of the fabric and another roller engages the opposite side of the cloth between said two rollers, and the rollers'are mounted for relative movement toward each other and yieldingly urged together in a manner to provide equal cloth-gripping pressure between the single roller and each of two rollers on the other side of the cloth.

In the specific embodiment shown on the drawing, and hereinafter described more in detail, two rollers on one side of the cloth are mounted to rotate on fixed axes, while a third roller on the other side of the cloth is mounted so as to be capable not only of rotating but also of movement bodily in a direction normal to the er and spring. However, it will be apparent that the desired relative movement and equal gripping pressure between a multiplicity of rollers may be provided in various ways without departing from the scope of the invention as provided in the appended claims.

, Referring to the drawing:

Fig. 1 is a plan view showing the preferred embodiment of the temple with the cloth in position therein;

Fig. 2 is a view of the same, partly in rear elevation but with the cap broken away as on line 22 of Fig. 1;

Fig. 3 is an end elevation of the same, with one roll-pin appearing in section; and

Fig. 4 is a View in cross-section taken substantially on line 4-4 of Fig. 2.

The temple shown on the drawing includes a housing I, of conventional design, adapted to be fixed to the frame-work of a loom in any usual manner. A temple bar 2 is slidably mounted in the housing I and extends generally longitudinally of the cloth C adjacent the selvage' of the latter. The temple bar carries at its rearward end a temple head which extends laterally of the bar, or width-wise of the cloth. Cloth-engaging rollers, for laterally stretching the cloth as it is being woven, are mounted in the temple head in accordance with the present invention, the particular temple shown having three such rollers.

Where only three cloth-engaging rollers are or upper side of the cloth at a point between the rollers 3 and 4. The rollers may be of any suitable usual construction, but are preferably comprised of a tubular wood body covered with leather, which is quite durableand of a nature not to damage even very delicate fabrics.

The cap 9, as shown, may be comprised of an elongated body fixed to the bar 2 as by means of a screw Ill and may be provided with front and rear bars II and I2 which engage-the upperside of the cloth to depress the latter below'the tops of the rollers 3 and 4. while the cloth remains taut it will be pulled firmly against the lower rollers, and the resulting friction between the cloth and rollers is ample to properly hold the clothin stretched condition.

. However, the cloth does not remain taut, throughment.

out the weaving operation, but is slaokened each time a pick of filling is beaten in the fell F. Our

invention contemplates provision for yieldingly urging the three rollers relatively toward each;

other in a manner to provide an exactly equal gripping pressure between the roller 8 and each of the rollers} and 4, to thereby hold the cloth when'it is slackened.

' The desired relative movement and equality of gripping pressure between the rollers may be ac compli'shed, by way of example, with two of the rollers rotating on'fixedaxes and the third roller mounted so as to be capable of floating move- To this end, the pins 6 and I of the form shown on the drawing are fixed in the pod 5 while the pin [3 on which the roller 8 rotates is loosely mounted in vertical slots l4, [4 formed in the ends of the. cap 9. Thus, the roller 8 is capable of moving in a direction normal to the cloth, that is, vertically, and also in a direction longi- "tudinally of the cloth.. The diameter of roller 8 is greater than the distance between the rollers 3 and 4. Consequently, the floating movement of the roller 8 in a plane normal to' the axis of the rollerpermits the latter to be yieldingly urged into the desired equal gripping relation with the other rollers.

'The pin I3, where it passes through one of the slots, has a portion l5 which is of non-circular cross-section, this portion engaging in the corresponding slot to prevent the pin from rotating. Vertically slidable plungers l6, l1, mounted'in the ends of the cap,bear downwardly against the ends of the pin i3 beyond the ends of the roller thereon. A singlefiat spring I8, carried by the cap, extends parallel to the rollers and engages the tops of the plungers. The spring is flexed or biased in a direction to yieldingly urge the plungers downwardly. The pressure of the spring on the plungers may be varied by an adjusting screw .19 in the cross-bar 20 of the cap. The

spring I8 and plungers l6, l1 constitute. a simple and efiective means for yieldingly urging the floating roller in a direction to attain the aforementioned equality of cloth-gripping pressure. It will be apparent, however, that the present invention is not restricted to the specific spring means just described.

The embodiment shown on the drawing makes use of certain parts of existing temples. More specifically, the housing, temple bar, pod, rollers 3and 4, and pins B and 1 are the same as corresponding parts of existing two-roller temples. Consequently, such existing temples may be converted to embody the present invention merely by supplying a new cap containing a roller and spring means such as those above described. The ne a i e O? the t mp e ov d fib d S It will be apparent that fairly obvious. It may be noted, however, that when the fabric is very taut the roller 8 may rise above the position in which it appears'on the drawing, the roller then descending into its gripping position as the cloth is slackened.

Having fully disclosed the preferred embodi ment of our invention, we claim:

1. In a loom temple adapted tolaterally stretch cloth as it is being woven, apair of cloth-engaging rollers having their axes parallel and on the same ,side of the cloth, said rollers being spaced apart roller for movement in a direction normal to the cloth and ina direction longitudinally of the cloth, said means holding said pin against rotation, vertically slidable plungers engaging the ends of said pin beyond the ends of the roller thereon, H

and spring means engaging said plungers for urging said roller toward said pair'of rollers and into equal cloth-gripping relation with eachof the rollers of said pair.

2. In a loom temple adapted to laterally stretch cloth as it is being Woven, a pair of spaced, parallel cloth-engaging rollers on one side of the cloth, a floating pin parallel tosaid rollers but on the opposite side of the cloth therefrom, means loosely supporting said pin for said floating movement while holding the same against'rotation, acloth-engaging roller rotatably mounted on said pin and engaging'the cloth centrally between the first said rollers, the diameter of said roller being'greater than the di'stance'between the rollers of said pair of rollers, andv spring means engaging the ends of said pin, and

yieldingly maintaining equal cloth-gripping pressure between said rollerand each of the rollers of said pair of rollers. I

3. In a loom temple adapted to laterally stretch a cloth as it is being woven, a pair of spaced, parallel cloth-engaging rollers on one side of the cloth, a floating pin parallel to said rollers but on the opposite side of the cloth therefrom, said temple having vertical slots loosely supporting said pin while holding the same against rotaon said pin and engaging the cloth between the first said rollers, a single fiat spring positioned tion, a cloth-engaging roller rotatably mounted parallel to said roller, an'd plungers actuated by 7 said spring and engaging said pin beyond the ends of the roller thereon for yieldingly main-'- taining equal cloth-gripping pressure between said roller and each of the rollers of said pair of rollers. 4. In a loom temple for' laterally stretching cloth as it is being woven, s ed having a pair of spaced, parallel cloth-engaging rollers below the cloth, a cap fixed" with respect to said pod, a pin mounted in vertical. slots in said cap for floating movement ma plane normal to. the axes of said rollers, means restraining said pin against roller rotatably rotation, a. cloth-engaging mounted on said pin and engaging the upper face of the cloth betweenthe first said rollers, plungers slidably mounted in said cap, said plungers engaging the ends of saidpin beyond the ends of the roller thereon, and a single fiat spring carried by said 'cap' above saidroller, said spring extending parallel to said roller and engaging said plungers to thereby yieldingly maintain equal cloth-gripping pressure between said roller and each of therollers of said pair of rollers.

5. In a loom temple for laterally stretching cloth as it is being woven, a pod having a pair of spaced, parallel cloth-engaging rollers below the cloth, a cap fixed with respect to said pod, a pin loosely mounted in slots in said cap for floating movement in a plane normal to the axes of said rollers, said pin having a portion of non-circular cross-section cooperating with one of said slots for preventing the pin from rotating, a cloth-engaging roller rotatably mounted on said pin, plungers in said cap engaging the ends of said pin beyond the roller thereon, and a single spring carried by said cap and engaging said plungers to thereby yieldingly press said roller toward said pair of rollers.

6. As an article of manufacture, a temple cap comprising an elongated body having means at one end thereof for attachment to a temple bar, said cap having a vertical slot at each end thereof, a pin loosely mounted in said slots for vertical sliding movement and horizontal movement transversely of the cap, said pin having a portion of non-circular cross-section engaging in one of said slots to prevent the pin from rotating, a cloth-engaging roller rotatably mounted. on said pin, vertically slidable plungers engaging the ends of said pin and bearing downwardly on the latter, and spring means engaging said plungers for yieldingly pressing said pin and roller downwardly in said slots.

WALLACE I. STIMZPSON. FREDRIC E. DOUGLAS.

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