US1589739A - Tube frame for tuft weaving - Google Patents

Description

June 22 1926.

w. BIXBY was FRAME FOR TUFT wmvme Filed Dec. 5, 1925 INVENTOk BY mam? J-Ca./V'

' ATTORNEY Patented June 22, 1926.

UNITED. STATES PATENT OFFICE.T

WALTER BIXBY, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO SHAWIVIUT ENGINEER- ING COMPANY, OF BOSTON, MASSACHUSETTS, CORPORATION OF MASSACHUSETTS.

TUBE FRAME FOR TUFT .WEAVING.

I Application filed December 3,1925. SerialNo. 73 ,033.

10 when carried around by the carrier-chains to and from position to be transferred into the loom for service.

Since tube-frames, as ordinarily suspended by hangers of greater or less length by engagement between the upper ends of said hangers and the carrier chains, are turned into all possible angles as they traverse the sinuous path of the chains, they are subjected to repeated shocks as they swing from one angle to another, thus producing excessive vibration tending to loosen or weaken the parts unless the parts are made of substantial weight or thickness to resist such service strains, According to the present improvement the tube-frame is detachably suspended from the carrier-chain by a direct connection and engagement.

which eliminatesthe rocking or swinging movement with relation to the chain, and

V permits the body of the tube-frame to be brought into closer relation to the chain, thus diminishing the leverage thereof.

The invention also comprises a novel construction of tuft-tube carrying and attaching means by which the tuft tubes are properly mounted along the tube-frame. and other features of the invention will be described in the following specification and will be defined in the claims hereto annexed. In the accompanying drawings I have illustrated a preferred form of construction embodying the principles of this invention, in which:

Figure 1 is a front elevation of a tube-,

5 Figure 5 is a detail view of the reciprocatory These 1 suspension and spool-supporting member.

In the practice of this invention, according to the form illustrated in the drawings, thecarrier-bar 1, is made of tubular construction for the purpose of carrying a closely. arranged series of parallel tuft tubes which the suspension means are subjected The means for attaching the tuft-tubes to the carrier-bar comprise a longitudinal strip of sheet metal 2, applied to the. front face of the carrier-bar 1, with its bottom portion folded upon itself, asshown at 2", and having its forward portion 2 projecting beyond the face of" the carrier-bar sufficiently to.

receive the row of tuft-tubes t whichare inserted in small transverse apertures in the forwardly projecting. supporting ledge'2". The vertical leg of this attaching member 2 is formed, near its upper edge, with a longitudinal-rib 2, to form an abutment for the intake end edges of the tuft-tubes 2? to which the tuft-tube ends are soldered. angle strip 3, having a' right angle lip 3 overhanging the upper edge of the tuft-tube carrying and attaching member 2, isapplied to the top face of the carrier-bar 1, and is securely anchored in place by transverse bolts 4, having clamping nuts 5 which, as

the bolt-head and the nut pass through and engage both the bottom portion 2 of the attaching member 2, and the top member 3, serve to ireleasably but firmly secure the tufttube attachingmeans .to the'carrier-bar.

'The end hangers 6,v are at their lower ends bent into U-shaped form forming an attach- 'ing portion or member 6 fitting snugly inside thehollow end of the carrier-bar and 1 secured therein by fastening screws passed through the top and bottom walls of the carrier-bar, the lower end of the arm 6, beyondsaid U-shaped inset, being bent to form a stop lip' or shoulder 6 abutting the end of the bottom wall of the tube as does the upper-portion of the said arm against the end edge of the top ,wall ofthe tubular bar '1-.-

Instead of the usual upwardly extending latch-hook for releasably suspending the tube-frame from the parallel links lOand 11, of the carrier-chains, Ipemploy in this case a spring-pressed plunger or reciprocatory latch 9 arranged in the top portion of the arm or hanger 6 in position to penetrate a counter-sunk aperture in the inside link '11.

The bracket 6 is provided with an offset portion 7 and an upwardly extending chainpenetrating member 7 which passes between the two links of the chain.

To retract the suspension member or latch 9 from suspending engagement with the chain I provide said latch with a vertical arm 8, carrying at its bottom a horizontal plunger or rod 8, forming a retracting element whose outer end is adapted to be engaged by the upper portion of the transfer cam 20 which, as usual, is provided with a bottom lip 20 and side wings 20", to form a receiving cradle for supporting and carrying the tube-frame from the chain to its proper operative position in the loom to deliver the tufts to the fabric being woven. The latch-retracting member 8 is mounted in a slide-way or hearing formed in the offset portion 7 of the end bracket or hanger, and as it is pushed in by the inwardly moving transfer cam the motion is transmitted' 'to the chain-engaging or suspension latch 9 so as to withdraw it completely from engagement with the chain, allowing the transfer mechanism thereafter to carry it into the loom.

In the present case the yarn-spool 15, with its flanged heads 17, is provided with a bearing recess or socket 16 in its ends in which is'mounted a spring-pressed journal '18, which has telescopic engagement with the inner end of the latch 9 and is normally pressed outward by a helical spring 19in position to form bearing engagement with said latch and at the same time to yield inwardly under the pressure of the transfer cam against the retracting member 8. The axial movement of the yielding journal 18 is limited by a pin and slot engagement, as shown at 1'6.

, The offset portion or member 7 of the end bracket or hanger is positioned and shaped, as shown in Figure 3, so that its top face forms an engagement with the under side of the inner chain-link '11 from which "the tube-frame is suspended. It will, therefore, be seen that the abutting top face of the member 7, by its engagement with the chain, prevents the tube frame from rocking about its suspension latch 9, thereby avoidmounted on said bracket in position to penetrate the lateral opening in the opposite link, said latch being provided with a retracting member projecting beneath the chain in position to be engaged and forced inward by the transfer means to release the tube frame from the chain.

2. Suspension means for a tube-frame embracing in combination with a carrier-chain, links having lateral openings, a suspension hanger secured to the end of a tube-frame carrier-bar, and a spring-pressed latch slidably mounted in the upper portion of said suspension hanger in position to enter the opening in an opposed chain link, said latch being provided with an outwardly projecting member beneath the chain in position to be forced inward by transfer mechanism and thereby release the tube-frame from the carrier chain.

3. A suspension hanger for a tube-frame embracing a suspension arm adapted to be rigidlysecured to the carrier-bar of a tube frame, and having at its upper end an outwardly offset chain-penetrating extension, a suspension spring-actuated latch slidably mounted in said outward offset portion to form suspending connection with the carrier-chain of a tube-frame, said arm being formed with a chain-engaging face arranged to prevent the rocking of the tube-frame about its suspension latch.

4. In a tube-frame, the combination with a carrier-bar, of a suspension hanger secured thereto, a spool-supporting chain-engaging element, yieldingly mounted in the upper portion of said hanger to normally maintain suspension engagement with a carrier-chain while also supporting the spool, said element being arranged to be disengaged from the chain by transfer mechanism while still affording support for the yarn spool.

5. A spool-supporting suspension hanger for a tube-frame embracing a suspension arm adapted to be secured to the carrier-bar of a tube frame, and a reciprocatory springpressed latch mounted axially of the yarnspool to move to and from suspension engagement with a carrier-chain.

6. A spool-supporting suspension hanger for a tube-frame embracing in combination, a suspension arm adapted to be secured to the end portion of the tube-frame carrierbar, a transversely movable spool-supporting and chain-engaging member whose outer portion normally has suspension engagement with a carrier-chain and whose inner portion forms a bearing support for the yarn-spool of a tube-frame.

7 A tube-frame for tuft-weaving embracing a longitudinal carrier-bar for supporting a row of tuft-tubes, means for detachably suspending said carrier-bar from carrier-chains, said means comprising an arm rigidly secured to the carrier-bar and adapted to form non-rocking engagement with the suspending link of a carrier-chain, and an outwardly pressed yielding latch movable longitudinally of the tube-frame to form releasable suspension engagement with an opposed chain-link.

8. In a tube-frame, the combination of a carrier-bar, end brackets secured thereto, a rotatable yarn-spool having axially yielding journals, journal bearing-members slidably mounted in axial alignment with said journals, and having outward extensions adapted to form releasable suspension engagement with tube-frame carrier chains.

9. In a tubeframe, the combination with a carrier-bar, spool-supporting end brackets secured thereto, endwise slidable suspension members mounted in said end brackets opposite said spool and normally pressed outward into releasable suspension engagement with opposed links of a carrier-chain.

10. In a tube-frame, the combination with a longitudinal carrier-bar, of a series of transversely disposed parallel tuft-tubes and means for detachably connecting said tuft-tubes to the carrier-bar, said means comprising a longitudinal strip of angular cross section folded longitudinal edges to form an attaching wing at right angles to its front face beintermediate of its neath the carrier-bar with a forwardly projecting edge portion slotted to receive and position the tuft-tubes, and means for securing said wing against the bottom of the carrier-bar.

11. An attaching means for detachably securing a series of tuft-tubes to a carrierbar embracing a longitudinal strip whose middle portion is bent on a longitudinal line at right angles to its top portion forming its front face and is reversely folded to provide a forwardly projecting ledge having transverse slots for the reception of tuft-tubes, the top portion being formed with a longitudinal rib to overhang the adjacent tuft-tubes.

12. In a tube-frame, the combination of a tubular carrier-bar, end brackets embracing upright arms whose lower end portions are bent inwardly downwardly and outwardly to form an integral U-shaped attaching portion insertable inside the hollow ends of the carrier-bar, means for rigidly securing the bar and the U-shaped attaching portion together, and a chain-engaging latch mounted in saidarm.

In witness whereof, I have subscribed the above specification.

WALTER BIXBY.

Images