US747201A - Selvage-motion for looms. - Google Patents

Description

PATENTED DEC. 15, 1903.

J. T. MEATS. SELVAGB MOTION FOR LOOMS.

APPLICATION FILED OCT. 8, 1903.

2 SHEETSSHBET 1.

N0 MODEL.

' PATENTED DEC. 15, 1903.

J. T. MEATS.

SBLVAGE MOTION FOR LOOMS.

APPLICATION FILED OCT. 8, 1903.

2 SHEETS-SHEET 2.

H0 MODEL.

UNITED S h Patented December 15, 1903.

JOHN T. MEATS, OF TAUNTON, MASSACHUSETTS, ASSIGNOR TO MASON MA- CHINE WORKS, OF TAUNTON, MASSACHUSETTS, A CORPORATION OF M 'ssAoHUsETTs.

SELVAGE- -MOTION FOR LOOIVIS.

SPECIFICATION forming part of Letters Patent No. 747,201, dated December 15, 1903.

Application filed October 8, 1903. Serial No. 176.198. (No model.)

To all whom it may concern:

Be it known that 1, JOHN T. MEATS, a citizen of the United States, residing at Taunton, in the county of Bristol and State of Massachusetts, have invented an Improvement in Selvage-Motions for Looms, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts. i

This invention relates more particularly to so-called dobby-looms, and it has for its principal object the production of a simple and efficient selvage-motion therefor of cheap construction and ready application and wholly independent of any of the usual harness levers or jacks of the dobby-head, or dobby, as it will be hereinafter termed. I am enabled thereby to utilize the full capaczo ity of the dobby for operating the main harnesses, and therefore increase its capacity (as to the number of harnesses) by the number of harnesses which may be operated by the selvage-motion.

In accordance with my invention the selvage-motion includes two oppositely-movable selvage-harnesses at each side and independent of the main harnesses and means operated by a part of the dobby independent of the harness-levers thereof to effect reciprocation of the selvage-harnesses.

The various novel features of my invention will be fully described in the subjoined specification, and particularly pointed out in the following claims.

Figure l is a partial front elevation of a dobby-loom with one embodiment of my invention applied thereto, the main harnesses and their connections with the jacks being 40 omitted altogether to avoid confusion. Fig. 2 is an enlarged sectional detail on the line 2 2, Fig. 1, of one of the adjustable stands mounted on the arch of the loom and sustaining the rocking members forming a portion of the selvage-motion. Fig. 3 is an enlarged front elevation of the stand. Fig; 4 is a perspective view, partly broken out, of the rocking members which are mounted on the right-hand stands shown in Fig. 1. Fig. 5

is an enlarged perspective view of said stand and its rocking members, the latter being shown in substantially the relative position illustrated in Fig. 1; and Fig. 6 is a perspective view of the left-hand stand and its rocking members.

Referring to Fig. 1, the dobby D, having harness levers or jacks J, the upper and lower knives K K, suitably coupled to the actuat-- ing rocker or lever B, rocked in usual manner by mechanism not herein shown, and the pattern-surface P, to govern the oscillation of the harness-levers by or through the oppositely-moving knives, maybe and are all of usual or well-known construction familiar to those skilled in the art.

The main harnesses are in practice connected by overhead straps or hands with the jacks and lifted thereby and depressed by usual springs; but inasmuch as such devices are old and form no part of my present invention they have been omitted in Fig. l to avoid confusion.

I-Ieretofore, so far as I am aware, it has been'necessary to utilize some of the harness levers or jacks of the dobby to operate the sewage-harnesses, it being manifest that every jack so used diminishes the number which can be utilized for operating the main harnesses.

As will appear hereinafter, the selvage-motion embodying my present invention is wholly independent of the jacks and of the controlling pattern-surface, so that the full capacity of the dobby can be utilized for the main harnesses.

The selvage-harnesses may com prise frames provided with a suitable number of heddles, or each selvage-harness may comprise one heddle or more.

On the arch A of the loom I mount two stands B, each having an overhanging head I), provided with a downturned lip b and an elongated seat I) for the lower edge of the arch.

Referring to'Fig. 2, the head I) is shown resting on the upper flange a of the arch, the lower flange or engaging the seat, the stand being clamped in position by clamping screws 19 in the base of each stand, metal washers of being interposed between the too heads of the screws and the face of the flange. Each stand has a rearwardly-projecting stud b held fast by a set-screw b and serving as a fulcrum for 'a pair of rocking members or bell-cranks. The said rocking members form overhead supports and lifting devices for the selvage-harnesses, and inasmuch as the rocking members are of somewhat peculiar construction I have shown the two pairs separatelyin Figs. 5 and 6 and in Fig. 4. The pair at the right-hand side, Fig. 1, are shown detached from their stand.

Referring first to Figs. 4 and 5, one member or bell-crank comprises two arms d 01', substantially at right angles to each other and connected by an elongated base (1 the arm (1 having a tubular hub d (see Fig. 4) projecting from its rear face. The base is dropped below the center line of the hub (the latter being rotatably mounted on the stud b of the stand) to permit the necessary swing of the arms without interfering with the arch of the loom. The other rocking-member is similarly constructed, comprising arms e e .at right angles to each other and connected by a dropped base e while the hub e is of sufficient diameter to loosely fit over the hub d but the base e is of sufficient length to admit the other rocking member between the arms 6 e. Notehes are made in the edges .of the several arms for a purpose to be described, the bell-cranks or rocking members preferably being made as castings. As the stand B is behind the arch, the arms d and e will rock in parallel vertical planes behind the arch, while the arms (1 and 6 will rock in vertical planes in front of it. As shown in Figs. 1 and 5, the latter two arms are upturned and the arms 01 and e extend toward i Fig. 1, the left-hand stand B supports a rocking member consisting of arms ff at right angles to each other and having a rearwardlyextended tubular hubf A depending extension f from the hub at right angles to arm f is turned forward at f and connects with the inner end of the arm f, the L-shaped part f f constituting a base. The other rocking member consists of arms g g at right angles to each other and connected by a base g g; but the part g is longer than the part f and part 9 is shorter than part f so that the two members can rock freely without interference. A tubular hub 9 projects rearwardly from the arm 9 and rocks on the stud b of the stand, While the hub f rocks on hub g The arms f and g rock in parallel vertical planes behind the arch, and the arms f and g, which depend below the arch, rock in vertical planes in front of it. Selvage-harnesses h h at the left-hand side of the loom, Fig. 1, are connected with the arms 9 and f, respectively, by straps or hands 4, and springs s s depress said harnesses. A transmitting connection M is attached at its ends to the arms g'e, Fig. 1, while a similar transmitting connection M is attached to the arms f d. Oonsequentl y when the bell crank g g is rocked to lift the front selvage-harness h at one side of the loom the back selvage-harness h. at the other side willbe raised. So, too, the back selvage-harness h at one side of theloom will be moved up or down with the front harness h at the other side by the rocking of the bell-cranks f f and d d. The bell-cranks fulcrumed on the same stand are rocked in opposite directions byor through the actuating-rocker R of the dobby, and to this end I have herein shown an elongated plate or bar R bolted to the rocker, Fig. l, the ends of said bar projecting beyond the ends of the rocker and being notched, as at 8. A band or wire 10 connects the lower end of the extension-bar R with the arm g, and a like band or wire 12 connects the upper end of said bar with the arm f.

Referring to Fig. 1, when the rocker R is rocked in the direction of arrow 15 the bellcranks g g and e 6 will be rocked on their fulcra to lift the selvage-harnesses h and h and at the same time the springs s and s will depress the harnesses h and h, the

arms fand d swinging down as the upper end of the extension-bar R swings to the right. On the opposite swing of the rocker R the harnesses h and h will be lifted and the harnesses h and h depressed.

By adjusting the stands B laterally on the arch the selvage-harnesses can be adjusted to conform to various widths of cloth woven, such adjustment being necessary if heddles without harness-frames are used forthe selvage, substantially as in the construction illustrated. Such adjustment of the stands will require accompanying lengthening or shortening of the connections M M and 10 12.

The hubs of the rocking members are held on the fulcrum-studs of the stands by means of washers 25 and cotter-pins 26, as shown in Fig. 2. v

By the construction shown the full number of dobby harness-levers can be used for the main harnesses, thus utilizing the full capacity of the dobby therefor, while the selvage'motion is wholly independent of such harness-levers.

The precise construction and arrangement of parts herein shown and described may be changed or modified by those skilled in the art without departing from the spirit and scope of my invention.

Having described the invention, what I claim, and desire to secure by Letters Patent, 15-

1. In a loom, a dobby, including harness levers or jacks, a selvage-motion including two oppositely-movable selvage-harnesses at each side of the loom, and means intermediate the dobby and selvage-harnesses and independent of the harness levers or jacks to effect the reciprocation of the selvage-harnesses.

2. In a loom, a dobby, its actuating-rocker, a selvage-motion including two oppositelyrnovable selvage-harnesses at each side and independent of the main harnesses, and means directly connected with and actuated by said rocker to effect reciprocation of the selvage-harnesses.

3. In aloom, a main harness-motion including a dobby, and its actuating-rocker, a selvage-motion including two oppositely-movable selvage-harnesses at each side of the loom and independent of the main harnessmotion, and means directly connected with and actuated by said rocker to reciprocate the selvage-harnesses.

4:. In aloom, a dobby, its actuating-rocker, a selvage-motion including two oppositelymovable selvageharnesses at each side and independent of the main harnesses, overhead rocking members connected with the selvageharnesses, and connections between the said actuator and the rocking members, to rock the same and thereby efiect reciprocation of the selvage-harnesses.

5. In a loom, a dobby, its actuating-rocker, a selvage-motion including two oppositelymovable selvage-harnesses at each side of the loom, an overhead rocking member for and from which each selvage-harness is suspended, a connection between the rocking member of the front harness of one pair and the rocking member of the back harness of the other pair, and vice versa, to cause the connected members to rock in unison, and direct actuating connections between the said rocker and the nearer pair of rocking members, to rock them oppositely.

6. In aloom, a dobby, its actuating-rocker, a selvage-motion including two oppositelymovable selvage-harnesses at each side of the loom, springs to move them in one direction,

and means directly connected with said rocker to move them positively in the opposite direction, said means including an overhead rocking member for and with which each selvage-harness is connected.

7. In a loom, amain harness-motion including a dobby, its actuating-rocker, harness-levers, and a controlling pattern-surface, a selvage-motion including two oppositely-movable selvage-harnesses at each side of the loom, and means actuated by or through said rocker independently of the harness-levers and pattern-surface to effect the reciprocation of the sewage-harnesses.

8. In a loom, a dobby provided with barness-levers, and its actuating-rocker, a selvage-motion including two oppositely-movable selvage-harnesses at each side of the loom, a pair of oppositely-movable rocking members fulcrumed above each pair of said harnesses and operatively connected therewith, and connections between the'actuatingrocker and the two pairs of rocking members, whereby the selvage-harnesses will be reciprocated independently of the harness-levers of the dobby.

9. In a loom, a dobby, and its actuatingrocker, two selvage-harnesses located at each side of the loom, springs to depress; them, two overhead stands,a pair of bell-cranks fulcru med on each stand, operatively connected with and to lift the selvage-harnesses below them, a transmitting connection between the front harness bell-crank on one stand and the back harness bell crank on the other stand, and vice versa, and adirect actuating connection between the opposite ends of the dobby-actuating rocker and the adjacent pair of bell-cranks.

10. In a loom, the arch, a dobby, and its ac tuating-rocker,two stands mounted upon and laterally adjustable on the arch, a pair of bell-cranks fulcrumed on each stand, a selvage-harness operatively connected with and suspended from each bell-crank, harness-depressing springs, and connections between said bell-cranks and the dobby-actuating rocker to oppositely rock the pairs of hellcranks and efiect opposite reciprocation of adjacent pairs of selvage-harnesses.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN T. MEATS.

I/Vitnesses:

I JOHN C. EDWARDS,

ELIZABETH R. MORRISON.

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