US863945A - Loom. - Google Patents

Description

PATENTED AUG. 20, 1907. 0; w. SGHAUM. LOOM APPLIUAT IOH FILED JAN. 10, 1907.

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No. 863,945. PATENTED AUG. 20, 1907.

0. W. SGHAUM.

LOOM.

APPLIGATION FILED JAN. 10, 1907.

2 SHEETS-SHEET 2 JTTOIM/EX 1n: NORRIS PETERS c0.. WASHINGTON. m c.

I OTTO W. SOHAUM, OF PHILADELPHIA, PENNSYLVANIA.

LOOM.

Specification of Letters Patent.

Patented Aug. 20, 1907.

Application filed January 10,1907. Serial No. 351.660.

To all whom it may concern:

Be it known that I, OTTO W. Sermon, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Looms, of which the following is a specification.

The invention to be hereinafter described relates to supporting, guiding, and leading off means for the warp threads and resulting fabrics in looms for weaving narrow ware, such as ribbons and the like, and is designed more particularly as an improvement on the construction set forth in a prior patent granted to me on June 26, 1906, number 824,310, to which reference may be had. In the patent referred to, the warp beams or spools at the rear of the loom were sustained in back-racks, each formed of an upper and lower bracket secured together, so that in adjusting the back-rack sections for different characters or widths of fabrics to be woven, the upper and lower brackets were moved as a unit or together without changing the overlapping relation of the upper and lower spools or beams. 1n narrow-ware looms, as well known by those skilled in the art, the width of the fabrics produced is less than the width of the warp as it comes from the spools or beams, so that while the construction set forth in said Letters Patent has proven admirably adapted as an equipment for changing a narrow-ware loom so as to weave several varieties of narrow fabrics, yet the upper and lower connected bracket arrangement, as described therein, does not admit of much variation in the relative overlapping condition of the warp beams or spools, and, consequently, the adaptation of such structure has been found to be limited.

With these considerations in view, the object of the present invention is to provide a construction for the support of the warp spools or beams at the rear of the loom and their guide or whip rolls, whereby through a simple adjustment of the supporting means for the spools and guides or whip rolls, the loom may be adapted to weave a wider range of narrow fabrics, the said spools being preferably provided with automatic let off devices, and economical use can be made of the entire width of the loom frame.

The invention, generally considered. consists of the features hereinafter specified, and the parts and combinations described and definitely set forth in the claims.

In illustration of the present invention, I have selected the embodiment shown by the drawing without, however, attempting to disclose the numerous changes and variations that may be made within the scope of the invention, and for clearness I have omitted all parts of the loom structure not directly associated with or connected to the subject-matter thereof,

as such parts are well understood by those skilled in the art.

In the drawings: Figure 1 is a vertical longitudinal section of a narrow-ware loom showing a back-rack constructed in accordance with the present invention and having provisions for supporting vertical rows of four beams or spools. Fig. 2 is a rear elevation of a portion of the construction shown by Fig. 1, with the beams or spools next above the lower ones omitted and their supporting arms broken away or in section, so as to more clearly show the parts beyond. Fig. 3 is a vertical section on line 3-3, Fig. 1, showing the take-up beams and their connections. Fig. 4 is an enlarged detail showing the adjustable connection between the back-rack sections and the guide or whiproll supports. Fig. 5 is a detached detail in elevation showing the connection illustrated in Fig. 4, and Fig. 6 is a detail perspective view, parts being broken away, showing the transversely extending back-rack supports or rods, and the manner for adjustably connecting the adjacent ends of the upper and lower back-rack sections thereto.

In my prior patent, hereinbefore referred to, the back-rack sections were formed each of an upper and lower bracket arm secured togetlror, so that transverse adjustment of the upper and lower portions could be made simultaneously to accommodate warp-spools of different lengths between adjacent sections. In such construction, however, there was no sufficient provision for relative adjustment of the upper and lower portions of the back-rack sections independently, so that the full width of the loom could not be economically utilized, and the variety of widths of narrow fabrics produced was limited. This will be clear to those skilled in the art, because the width of the sheets of warp coming from the warp-spools is greater than the .width of fabrics produced, and, consequently, such warp-spools, if supported and adjusted to overlap more or less in proportion to this difference, an economic use can be made of the full width of the loom and greater variety in narrow fabrics result.

In the present invention, therefore, the upper and lower back-rack sections are formed independently of each other and are relatively adjustable transversely in a manner to adapt the loom to a wider range of fabrics, as will be hereinafter pointed out.

The loom frame A may be of any usual or desired construction, and extending transversely thereof are the cross-beams A, A A and A Secured respectively to the beams A and A at the rear of the loom are the face plates a and b, and disposed intermediate of the said beams are the intermediate back-rack supports or rods 0, d.

The upper portion of each back-rack section 13 consists of the complemental brackets or arms I) b between which, in suitable bearings, the upper warpspools 1) b having usual warp tension or let-off devices [1 are supported.

The upper end I) of each upper back-rack section, is connected at b by suitable bolts 01' otherwise to a top-bracket O, which in effect constitutes the upper extremity of each section, and has suitable bearings c c for the guide or whip rolls 0 0. Each of the brackets C and, consequently, the upper extremities of each backrack section is adjustable transversely of the loom and supported in position on the face-plate by means of the engaging lip c and the screw bolt c substantially as set forth in my former patent.

The lower portions of brackets or arms b b of each upper back-rack section, are connected together by means of a spacer or tie piece I), preferably joined to the lower ends of the brackets or arms I) b, as best shown in Fig. 6. The ends of the brackets or arms b b rest upon the intermediate back-rack supports or rods 0, d, and are held thereto by means of a plate b engaging the under portion thereof and drawn up by a screw bolt b Obviously, of course, the details of structure may be varied and any suitable clamping devices be employed for holding the brackets or arms I) b adjustably upon the intermediate back-rack supports or rods, the construction being such that the upper back-rack sections may be adjusted transversely of the loom independently of the lower back-rack sections, or the brackets or arms I) b may be disposed a greater or less distance apart by suitable spacers to accommodate warp spools of greater length.

Disposed below the upper back-rack sections B are the lower and independent back-rack sections 13 each formed of two brackets or arms (1 d, Fig. 2, having suitable bearings (F for warp-spools J. To the lower portion of the brackets or arm d d are connected the clamps d", Fig. 1, which engage the face-plate b,

and afford transverse adjustment of the lower portions of these back-rack sections, substantially as in my prior patent.

The upper portions of the brackets or arm d (1, Figs. 1 and 2, are seated upon the underside of the intermediate back-rack supports or rods 0, d, and are connected together by ties or spacers d being adjustably clamped to the said supports or rods by means of a plate a" and bolt d, substantially as are the brackets or arms I) b, the construction being such that by manipulation of the clamps d and bolts d the lower back-rack sections may be adjusted independently of the upper back-rack sections or, if desired, the brackets or arms (1 d may be spaced apart by the use of appropriate tie pieces or spacers d to suit the use of different lengths of warpspools.

By the independently adjustable character of the upper and lower backrack sections, as described, it will be obvious to one skilled in the art that an economic use can be made of the entire width of the loom and the loom adapted to greater variations in width of fabrics to be produced than heretofore, it being understood that such' adjustment does not necessitate substitution of any of the parts by others of different form or character.

As already explained, the brackets O, constituting the upper portion of the upper back-rack sections, have suitable bearings for the whip or guide rolls 0 c, which guide the warp rt coming from the wai-pspools b I) and adjustably secured to each of the brackets C is a guide roll supporting arm F having bearings f f for the guide rolls f f for the warp threads y coming from the warpspools d d of the lower back-rack sections, Figs. 1, 4

.and 5.

Each of the brackets G has a bearing flange f 2 upon which rests the foot f 3 of arm F, a bolt and nut, f f serving to secure the parts in adjusted relation, Figs. 4 and 5. From this general construction, it will be noted that as the upper or lower back-rack sections are adjusted transversely as already described, the whip or guide rolls may be readily adjusted to the changed condition.

In order to enable the take-up rolls G at the front of the loom to be adjusted to suit the fabrics resulting from the described adjustment at the rear, said rolls G are mounted on the take-up shaft G so as to be movable transversely thereof, said shaft being driven as usual. Secured to the beam A is the transversely extending plate 1 carrying the adjustable brackets g for support of the upper press rolls (1 the brackets being secured in adjusted position by set screws 1 Figs. 1 and 3, or other suitable means. The lower press rolls 9 are mounted on spring-actuated spring arms b and are adjustable on the shaft or rod 9', all as will be readily understood by one skilled in the art.

While the illustrated form of the invention discloses only a series offour vertically arranged warp-spools and the particulars of structure described disclose one form or embodiment of the invention, it is to be understood that the invention is not circumscribed by these details, as changes may be made therein, a greater or less number of warp-spools be employed and variations made Within the scope of the present invention.

Having thus described the nature of my invention, what I claim and desire tosecure by Letters Patent is:

1. In a loom, a back-rack for supporting warp-spools comprising independent upper and lower portions, and means for independently adjusting said portions relatively to each other transversely of the loom.

2. In a loom, the combination of a back-rack comprising a series of upper and lower portions independent of each other, means for separately adjusting said upper and lower portions transversely of the loom, and independent guide roll supports for said upper and lower portions of the back-rack.

In a loom, the combination of a bacl i'acl for supporting Warp-spools comprising a series of upper and lower portions independent of each other, means for separately adjusting said upper and lower portions of the baclerack bodily transversely of the loom, and guide rolls independently adjustable in conformity with the adjustment of their portion of the back-rack.

-l. In a loom, a back-rack for supporting a series of warp-spools comprising a series of back-rack sections each formed of an upper and an independent lower portion alternately disposed and means for permitting separate adjustment of the upper and lower portions transversely of the loom to enable the warp-spools to overlap as desired.

5. In a loom, a baclerack for supporting a series of warp-spools comprising, a series of back-rack sections each formed of an upper and an independent lower portion alternately disposed, means for permitting separate adjustment of the upper and lower portions transversely of the loom to enable the warpspools to overlap as desired, guide roll supports, and means for separately adjusting them to guide the warp coming from the warp spools.

G. In a loom, the combination of back-rack sections formed of independently adjustable upper and lower portions. means for adjustably supporting the upper part of the upper portion, means for adjustably supporting the lower part of the lower portion, and an intermediate backraek support common to both the upper and lower portions.

7. In a loom, back-rack section supports comprising an upper, a lower, and an intermediate support, and backrack sections formed of independently and transversely adjustable upper and lower portions mounted on said supports.

3. In a loom, back-rack section supports comprising an upper, a lower, and an intermediate support, backa-ack sections formed of independently and transversely adjustable upper and lower portions mounted on said sup ports, and independently adjustable guide supports for the warp coming from the upper and lower back-rack portions.

9. In a loom, a back-rack formed of a series of backrack sections, each formed of upper and lower pairs of brackets or arms for supporting warp-spools, intermediate back-rack supports, and means for separately adjusting the pairs of upper and lower brackets or arms along said intermediate support.

10. In a loom, a back-rack formed of a series of backrack sections, each formed of upper and lower pairs of brackets or arms for supporting warp-spools, intermediate back-rack supports, means for separately adjusting the pairs of upper and lower brackets or arms alongsaid intermediate support. and guide roll supports carried by the upper brackets or arms and means for adjusting said roll supports transversely of the 100m.

11. In a loom, the combination of a backa'ack for supporting warpspools comprising independent upper and lower portions, means for independently adjusting said portions relatively to each other transversely of the loom, take-up rolls transversely adjustable, and press rolls acting thereon and transversely adjustable.

12. In a loom, two pairs of independent brackets or arms constituting; a back-rack, a spacer or tie bar joining the members of each pair, a back-rack support common to both of said pairs of brackets, and means for separately adjusting and clamping the two pairs of brackets or arms to said intermediate back-rack support.

In testimony whereof I aflix my signature in presence of two witnesses.

OTTO W. SCHAUM.

Witnesses E. C. RTIOADS, .TonN 'lmnn.

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