US1320997A - Kichabd greenleae turner - Google Patents

Description

R. G. TURNER.

LOOM.

APPLICATION FILEDMAR.H.1918.

1.3202997, Patented Nov. 4, 1919.

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RICHARD GREENLEAF TURNER, 0F lVlALDEN, MASSACHUSETTS.

LOOM.

Specification of Letters Patent.

Patented Nov. 4, 1919.

Application led March 11, 1918. Serial No. 221,745;

fication.

This invention relates specifically to'looms` of the type set forth in my application filed June 12, 17, Serial No. 174,233, that is, to looms wherein the weft thread is delivered through an eye in the shuttle from a vertical tube reaching to the center of the Shed, and it has for its object the effecting of improvements in the beater and also in the shuttle, the improvement in beaters being for the purpose of enabling the beater' frame to be pivotally supported below the breast beam as in all looms now in general use, and still to adapt the beater comb for rising to permit the passage of the weft thread with the shuttle.

In the drawings forming part of this specication, Figure 1 is a perspective view of a part of a loom embodying my improved beater. Fig. 2 is a side sectional elevation of the same. Fig. 3 is a plan view of a part of the beater frame an comb. Fig. 4 is a front elevation of parts of'the same. Fig. 5 is a top view of my improved shuttle. Fig. 6 is a cross section of the same on the line X-X in Fig. 5. Fig. 7 is a cross section on the line Y-Y in Fig. 5, Fig. 8 is a sectional view through the line Z-Z in Fig. 6, looking from beneath.

The reference numeral 1 designates the shuttle boX, and 2, 3 the beater frame pivotally supported at 4 and suitably oscillated toward and from the breast beam 5 in a well known manner. When the shuttle 6 is to be shot throu h the shed composed of the warp threads 7 and 8, while the weft thread 9 passes through an eye in the shuttle from a point near the harness frames '10 at the center of the shed, it is necessary to have the beater comb 11 rise high enough to give free passage to the weft thread, as shown in Fig. 2. Then as the beater frame approaches the breast beam to suitably beat the weft thread in, it is necessary to have the comb teeth 13 descend below edge the fram@ beam 2.

For suohpurpose, the comb bar 11 has its ends slidable in ways 14, as shown in Figs. 3 and 4, its motion being controlled by antifriction rolls 15 movable between parallel flanges 16 projecting from bars 17. These bars are liXed in position by having their ends bolted to Suitable supports, as the machine frame member 19 at one end of each,

and a post 2O rising from thebreast beam 5, as shown in Fig. 1. To secure sufficient rise and fall of the comb, the rear end of each'bar 17 needs to be somewhat higher than its front end.

To relieve the strain of the beating pressure from the ways 14, I provide a ridge 21 on the beater bar 2 so that the ends of the comb teeth 13 descend into a channel 22 just before they perform their beating function, and the rearward strain is thereby taken by the ridge.

lThe antifriction rolls 15 are preferably connected with the beater comb by being rotatably mounted on the outer ends of rods 23 joined-to the comb bar 11 by straps 24, 25, but I do not restrict myself to this construction.

The shuttle 6, hollowed out so that all eX- cept its ends consists of two parallel thin flat sides 26, is provided at its midlength with an eye for the free passage of the weft thread. This eye I prefer to form by means of two semicircular disks 27 brazed between plates 29, as indicated in Figs. 6 and 8. This 'eye is loosely mounted in the under edges of the sides 26 and held therein by a length of resilient sheet metal 28 fastened at its midlength to the upper surface of the eye-member and at its ends to the top edges of the sides 26. The eye-member is made less in width than the outer surfaces of the sides, as shown in Fig. 6, and is attached thereto as described, in order to permit the compression of said sides. This compression `is desired when the shuttle is shot into its shuttle boxes 29 which are made slightly narrower than the shuttle, since it enables the shuttle to be thrown out from the boXes with greater ease and certainty.

What I claim is:

1. A loom comprising a beater frame movable toward and from the breast beam, a comb slidably carried by the beater frame, land means for automatically elevating the ,Comb t0 permit 0f the passage of the weft gagement with the fabric being Woven.

A loom comprising a beater frame including a horizontal beam having a chan- -nel along itsy top surface, and means for swinging it toward and from the breast beam, a comb having teeth carried by the beater frame, and means for raising and lowering the comb as the beater frame swings toward and from the breast beam, the ends of the teeth being adapted to enter said channel when the Comb is in its lower position.

3. A loom comprising a. frame and breast beam, a beater frame adapted to be moved toward and from the breast beam, a Comb carried by the beater frame to be raised and lowered, bars supported by the loom frame and breast beam above the ends of the beater frame, said bars having substantially horizontal ways, and members connected with said comb movable in said ways.

4L. A loom comprising a frame and breast beam, a beater iraine adapted to be moved toward and from the breast beam, a comb slidably carried by the beater frame to be raised and lowered, bars supported by the loom frame and breast beam above the ends of the beater frame, each bar having two parallel flanges, and antil'rietion rolls movable between said flanges connected with said comb for vertically reciprocating it as it is moved toward and from the breast beam.

In testimony that I claim the foregoing invention, I have hereunto set my hand this 24th day of February, 1918.

RICHARD GREENLEAF TURNER.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, IJ. C.

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