US745230A - Selvaging device for wire-looms. - Google Patents

Description

PATENTED NOV, 24, 1903.

J. MOFETHRIES- SELVAGING DEVICE FOR WIRE LOOMS. APPLICATION FILED MAR. 14, 1903.

N0 MODEL.

&, m w. & R

m: uonms Pznzns c0, PuoTo-urnu" WASHINGTON. n. c,

UNITED STATES Patented November 24, ISOS.

PATENT OFFICE.

, JOHN MCFETHRIES, OF SPRINGFIELD, MASSACHUSETTS, ASSIGNOR TO NA- TIONAL LOOM AND WIRE COMPANY, OF SPRINGFIELD, MASSACHUSETTS,

A CORPORATION.

SELVAGING DEVICE FOR WlRE-LOOMS. I

SPECIFICATION forming part of Letters Patent No. 745,230, dated November 24, 1903.

Application filed March 14, 1903. Serial No. 147,781. (No model.)

To aZZ whom it mag concern.-

Be it known that I, J OHN MCFETHRIES, a citizen of the United States of America, and a resident of Springfield, in the county of Hampden and State of Massachusetts, have invented certain new and useful Improvements in Selvaging Devices for Wire-Looms, of which the following is a, full, clear, and exact description. to This invention relates to improvements in looms, and more particularly power-looms for weaving wire-cloth;and the invention has for itsobject to provide devices suitably locatedat opposite sides of the loom'which I 5 are operative, when the lay is back from its beating-up position and the shuttle has been thrown to put in the Weft-wire, to have positions coincident with or very near the outer longitudinal lines of the fabric being formed and to constitute members around which the edge loops of the weft may be gaged and tightly drawn to impart to the wire-cloth being made in the loom a good and uniform selvage and one which insures an avoidance of crinkled, rumpled, or wavy margins to the fabric. 7 Another object of the invention is to construct the device so that it is especially adapted for use in wire-weaving looms of a kind in which the lay has in addition tothe usual beating-up motion also a comparatively slight retreating motion followed by a second or supplemental beating-up motion before the lay finally moves to the limit of its inwardly- 5 swinging motion, the new improved device being operative so that the member thereof around which the loops of the weft at the margin of the fabric are formed will be elevated above and out of the way of the fabric 0 not only in the primary but also in the secondary beating-up movement of the lay, the loop-forming member being permitted to be lowered only when the lay is fully back and away from proximity to the battening-point. 5 The invention consists in members of small rod or needle like form having movable supports or carriers therefor located at opposite sides of the loom suitably in front of the lay and adjacent the outer courses of the warp-wires,together with means of novel construction and arrangement for imparting reciprocatory movements to said members, so that at the time when the lay is back and the shuttle is thrown such members will have their positions across the plane and just out side of the edges of the fabric, around which the weft-wire will be looped and tightly drawn by the tensioning means employed, as usual, and which supports for said needle-like members have positions thereafter successively and when the lay moves forwardly to beat up of removal and retirement from the selvage of the wire-cloth, so as in no manner to interfere with the beating-up action.

The devices for carrying out my invention may be of various forms and may be applied and located variously as may be desired and most convenient, according to the kind of loom on which it is utilized, and in the accompanying drawings the same is shown as in combination with the breast-beam and lay cap of the loom.

Figure l is aside view of the front end of the loom, showing an exemplification of the device of the present invention applied thereon. Fig. 2 is a side elevation of the improved device, parts of which are mounted on the breast-beam and lay-cap where these usual portions of the loom are represented in Ver tical section. v Fig. 3 is a perspective view LO showing the needle-like device and the recip rocatory carrier therefor.

Similar characters of reference indicate corresponding parts in all of the views.

In the drawings, A represents the lay of the loom, of which a is the lay-cap, b the reed, and 0 indicates the relative location of the shuttle-race.

B is the breast-beam, around which the made fabric is passed to the take-up beam 0. 0

f indicates the needle-like member for forming the gage-support, around which the edge loop of the weft-wire is drawn, the same being arranged to reciprocate vertically, as movable on its carrier g, which is shown in the form of a lever pivoted at g in ear-lugs h of a metallic strap 2', which encirclesthe breast-beam, being properly adjusted thereon by the confining-screwy, which engages in a usual manner with lugs f of the strap.

The spiral spring is, connected to the pivoted carrier 9 and to an eye of the strap, exerts a down-swinging force for the carrier, and said carrier has an abutment-stud on extended from its side, cooperating with which is the bar D, supported by and projecting forwardly from the lay-cap of the loom. This bar has'the inclined or cam-like forward eX- tremity 'n, the intermediate straight portion M, and a base or back piece 01?, the same being adjustably confined along the front of the lay-cap, which, as shown, has the T-slot 0 therein, in which the head of the bolt 0 is located. The screw-shank of the bolt projects forwardly through the aforementioned back piece n of the appliance D and receives thereon the thumb-nut 0 ,the aforementioned back piece having a rearwardly-extending rib n engaging and steadying the cam-like appliance in its adjusted and fixed position on the lay-cap. The base of the casting having the aforementioned ear-lugs h for receiving the pivotal connection of needle-carrier lever and which is secured in the encircling strap t' has an adjustable abutmentt for limiting the extent of downward-swinging movement of the lever to insure the most advantageous positioning of the needle relatively to the plane of the fabric being manufactured, such abut ment, as shown, being constituted by the head of a bolt, the shank of which screw engages into the said bore of the ear-lug casting. By turning the bolt its position may be such as to regulate the downward limit to which the needle may be permitted to descend. These devices, as shown, are of course duplicated at corresponding positions at opposite sides of the loom.

When the lay is back, as shown in the full lines in Fig. 2, the carrier 9 for the needlef descends as far as it may go, as limited by the adjustable abutment t, the needle having its position across the plane of the fabric being woven and in the line of the selvage, so that when the shuttle is shot to carry the weftwire back to the opposite side of the loom the loop between the previously-laid weft and the last-projected portion thereof (indicated in Figs. 2 and 3 at so) will be disposed as encircling the needlefand may be drawn closely around it, the same producing a selvageloop, a succession of which loops are indicated at y at the edge of the made wire-cloth. The loop having been made and drawn to its contracted form at and following the time of throwing the shuttle, the succeeding forward beating-up movement of the lay will cause the cam-like portion of the part D, which is carried on the lay, to impinge against the abutment m of the needle-carrier G, elevating the latter and the needle, all as represented by the dotted lines in Fig. 2, whereby the do vices constituting the present improvements afford no obstruction to the usual beating-up action.

When the lay is swung forwardly to beat up, after the inclined portion n thereof, by

abutment against the stud m upwardly swings the lever-carrier g for the needle, and the stud m is relatively well along toward the front of the lay-cap and on the straight horizontal portion 91 of the bar D, although the lay may now haveadegree of retreating move ment before giving the secondary battening stroke during such retreating motion and during the secondary battening stroke the straight horizontal portion a is non-effective relatively to the stud of the needle-carrying lever to cause any lowering of such lever, the carrier being during the mentioned secondary movements of the lay supported at the limit to which it is upwardly swung.

Of course if it should be desired to have this selvaging device only at one side of the loom the omission thereof from the other side could be made.

The loops forming the selvage of the wirecloth will under the action of the mechanism be of uniform size and all along straight lines, giving the desired marginal character to the cloth. 7

Various changes and modifications in the details and arrangements of the parts which are employed to carry out the object of this invention may be made without departing from the gist thereof, and it is also clear that for any width of fabric to be made in the loom the devices may be correspondingly transversely adjusted.

The loop-forming'memberfmay have an adjustment in a line parallel with the warps, as permitted and retained by the lug-socket s in the carrier g, in which the angularlyturned shank of the said member may be slid forwardly or rearwardly and the confiningscrew it, so that the said loop-formed member may be positioned properly with relation to the weft laying-in means and the batten- 'ing-point.

Having thus described my invention, what I claim, and desire to secure by Letters Patout, is-

1. In a loom having the usual weft layingin and beating-up devices, the combination with a stationary part, at the front of the machine, provided with a lever, pivotally mounted thereon and adapted for a swinging movement in a vertical plane, provided with a laterallyextended stud and having a downweirdly-projecting needle-like member supported at its inner end, of a bar mounted on, and forwardly projecting from, the lay, constructed with an inclined portion adapted in the forward movement of the lay to impinge against said stud, thereby upswinging the needle-carrying lever. 1

2. In a device of the character described, the combination with a stationary front part of the loom structure having a lever pivotally mounted for a vertical swinging movement thereon, provided with an abutment-stud m and carryingadownwardly-projectingneedlelike member, of the lay having a bar mounted thereon, and forwardly projecting therefrom,

constructed with the inclined portion 92 and I the length thereof, and forwardly projecting the horizontal portion m and arranged for therefrom, and formed with the horizontal cooperation with the said abutment-stud for portion 72?, next to the lay, and with the downthe purposes set forth. wardly and forwardly inclined outer portion 3. In a device of the character described, at, substantially as and for the purposes set the combination with the breast-beam of a forth. loom provided with an encircling clamping- Signed by meat Springfield, Massachusetts, strap, the lever g pivotally supported by said in presence of two subscribing Witnesses. strap and provided with the abutment-stud JOHN MOFETHRIES.

m and carrying the downwardly-projecting I Witnesses: needle-like member f, of the lay having the WM. S. BELLOWS, barDsupported thereon and adjustable along 1 A. V. LEAHY.

Images