US1365417A - Lay-retaining device - Google Patents

Description

H. LINDSAY.

LAY RETAINING DEVICE.

APPLICATION FILED JULY 12, 1920.

1,365,417, Patented Jan. 11, 1921.

iii Yen far Mm. xv

UNITED STATES PATENT OFFICE.

HAMILTON LINDSAY, or CLEVELAND, .OHIO, nssreivon To 'THIJ LINDSAY wmE WEAVING COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF; OHIO. i

tny nn'rnrnme DEVICE.

AppIicatiOn fiIeG July 12,

Toall'wlzom it may concern:

Be it known that I, HAMILTON LINDSAY, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Lay-Retaining Devices, of which the following is a full," clear, and exact description, reference being had to the accompanying drawings.

This invention relates to improvements in looms for weaving wire cloth, particularly to the type of loom set forth in my. prior Patent 1,052,929. In weaving wire cloth on the shuttle loom it has been found thatthe middle of the lay or batten had a tendency to vibrate when very wide clotlris being woven. This vibration continues while the shuttle is passing from one shuttle box to the other and it throws the shuttle from its path and consequently disturbs the alinement of the warp thread.

The object of my invention is to provide means which will prevent the vibration of the lay while the shuttle is passing from one shuttle box to another. Other objects include the provision of a means which may be positioned on the frame of a machine and adapted to retain the center ofthe lay dur ing the time in which the shuttle is moving across the machine and to instantly release it thereafter. A

The above and other objects will be here-. inafter more fully set forth in thefollowing description which relates to thefaccompanying drawings. The essential characteristics are set forth in the claims.

In the drawings Figure 1 is a'front ele vation of a loom embodying the features of my invention; Fig. 2 is a cross section through the center of the loom; Fig. 3 is a large view of the mechanism shown in Fig. 2 comprising the retaining device; Figs. 4 and 5 are details of the parts of the mechanism adapted to be used with the retaining I device.

Designating the parts by the use of reference characters, in the drawings, 10 represents the standards which with the, cross rail 11, comprise the frame of a wire weaving loom, having a customary warp beam 12, guide roll 13, and cloth beam 14. Depending from the top of the frame and pivotally connected thereto is the batten 15, which carries the lay 16; while positioned at both sides of the frame are the shuttle boxes 17 Specificationof Letters Patent. 7 PatentedjJan ll"11921,

1920. Seria1 No.395,80 7

and the corresponding picker arms 18.

ThismechaniSm set forth in the aforementronedpatent; My present invention, pertains to the means forret-aining the centerof the lay in a rigid position While the shuttle is passingbetween the ranks from one sideof the machine to the other.-

Looms have heretofore been provided with mechanisms for'preventing the vibra'--" tion of the batten, wherenarrow cloth'is woven, but on wider machines the middle of the lay also has considerable vibration;

which results inthrowingthe shuttle off its track, or course, as' it travels shuttle box to the other. 1

vThe batten is arranged to swing about a pivoted connection at the-top'of the frame. As'shown in F ig. 2, the batten 15 is in the rearward position and engaged by a pawl 20. This pawl is pivotally connected at 19 to a bracket 27 and is operated by a rock shaft 22 through a rock arm 21 and a con necting link 23, whereby a rocking motion of the rock shaft imparts a similar motion to the pawl. Suitable cam mechanism, not shown, operates the rock shaft 22 to so position the pawl 20 that the fin er 30 may engage the center of the lay. "aontinuous en gagement with the la wouldrapidlywear the metal away, so." have provided a rewhich may be hardened and tempered. The pawlis so mounted that when the lay swings upwardly and 'rearwardly, the engaging toothwill cause the endnof the latch to hook from one movable block 32 with an engaging tooth 31 over the tooth and to retain the lay.

A. bracket v27 may berigidly secured to the cross rail 11 andbe adapted to carrya removable buffer plate 29 in addition to the pawl 20. Thebuffer plate serves to take up the shock of the lay when it is arrested in its rearward movement. The buffer plate may be any' flexible -material-such as rubher or fiber whichmay be changed when the impact surface is worn. The rock shaft 22 extends across the frame and is supported by bearings positioned on the cross rail 11.

35 shown in my prior Patent No. 1,002,163, is operated by mechanism described and claimed therein. The position ofthe rock This shaft, corresponding to the rock shaft thereof, being connected to the rock arm and the lower end to the pawl.

In operation, the position of the rock arm,

connecting link, and pawl, with relation to the rock shaft is such, that the pawl at the center of the machine is synchronized with.

the retaining devices at both ends of the machine. In other words, when the cam mechanism operates the rock shaft 22 to release-the retaining devices. at the ends of the lay, then the rock arm 21 is also moved andthepawl 20 is caused to move-with it. Assuming that the lay has imparteda final blow to the wire cloth and is striking the buffer plate, thenthe machine is timed, so that the pawl will engage the hardened tooth and retain the lay against the buffer plate, thereby preventing.vibration.

It will be seen'from the foregoing description that I have provided a mechanism which will effectively prevent vibration at the center of the lay and that this mechanism is adapted to beattached to and coordinate with existing wire weaving looms.

Having thus described my invention I claim2- 1. In a 100m, the combination with a frame of a lay means for engaging the lay intermediate the ends thereof andv adapted to hold it at the end of its rearward swing.

2. In a loom, the combination with a frame, of a lay means for operating the lay, a latch mechanism intermediate the ends of the lay and adapted to engageand steady it at the end ofits rearward swing.

3. In a loom, the combination with a frame of a lay means for operating-thelay, alatch mechanism pivotally mounted on the frame intermediate the ends of the lay. and

I adapted to hold it at the end of its rearward.

swing.

4. In a loom, the combination with a frame of'a lay means for operating the lay, a latch mechanism near the middle of the lay and means for engaging and disengaging the said mechanism independentlyof the lay operating means. g

5. In a loom, the combinationwith a lay,

of amember intermediate its ends and carthe said member, and means for engaging and disengaging the latch, whereby the lay may be momentarily held at the end of its rearward swing.

6. In a loom, the combination with a frame of a lay, a latch carried by the frame, and adapted to engage the center portion of the lay when it is at the end-of its rearward swing,-and to momentarily hold it, and means for operating the latch.

7. In a loom, the combination with a frame of a lay, a fixed member carried thereby, a fixed support on the loom frame,

a latch pivotally mounted on the fixed support and adapted to engage thesaid member intermediate the ends of the lay, means for operating the latch, and means for absorbing the impact of the lay at the end of its rearward swing.

8. In a loom, the combination with a frame'of a lay, an engaging block secured substantially at the center of the lay, a support on the frame, a member mounted thereon and adapted to engage said block whereby vibration of the lay may be prevented when it is near the, end of its rearward swing.

9. In a loom, the combination with a frame of a lay, a latch pivotally mounted on the frame and adapted to ei'igage the lay intermediate the ends thereof, a rock shaft, means connecting the rock shaft with the latch, and means for operating the rock shaft whereby the latch will be disengaged.

10. In a loom, the combination with a frame of a lay, a fixed support on the frame, alatch pivotally mounted on the said support and adapted to engage the center of the lay, a buffer plate on the said support admit ed to retard the, rearward motion of the lay, a rock shaft supported on the frame. a rock arm associated with the said rock shaft, a link connecting the rock arm with the latch. and means for operating the rock shaft whereby the latch will engage and di'sen gage the lay. 7

In testimony whereof, I hereunto ai'fix my signature.

HAMILTON LINDSAY.

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