US764771A - Take-up mechanism for looms. - Google Patents

Description

PATBNTBD JULY 12, 1904.

. E. 11. ROY. .TAKE-UP 'MEGHANISM P011 LooMs.

APPLICATION FILED MAR. 23. 1904.

N0 MODEL.

UNITED STATES EDVARD D. ROY, OF ANDERSON,

Patented July 12, 1904.

PATENT OEEICE.

SOUTH CAROLINA, ASSIGNOR TO RATION `OF MAINE.

TAKE-'UP IVIECHANISIVI FOF LOOIVIS.

SPECIFICATION forming part of Letters Patent No. 764,771, dated July 12, 1904.

Application filed March 23, 1904;.

T0 rr/ZZ whom it may concern:

Be it known that I, EDWARD D. ROY, a citizen of the United States, and a resident of Anderson, county of Anderson, State of South Carolina, have invented an Improvement in Take-Up Mechanism for Looms, of which the following description, in connection with the accompanying drawings,is a specification, like characters on the drawings representing like parts.

In a well-known form of take-up mechanism the cloth is wound upon a roll or bar by frictional engagement with a positively-driven sand or take-up roll, the cloth as it is woven passing' around the latter onto the cloth roll or bar, which is rotatively mounted in springcontrolled movable bearings. Such a form of take-up mechanism is shown in United States Patent No. 610,636, dated September 13, 1898, the frictional engagement of the take-up roll with the cloth as it is laid upon the cloth-roll effecting rotation of the latter, which moves away from the take-up roll as the diameter of the mass of cloth increases. IVhen a roll is full, the web of cloth is cut and the wound mass removed from the loom and a new roll or bar is inserted in the movable bearings, or the roll maybe withdrawn from the mass of cloth and replaced in the loom. The weaver then takes the loose end of the web of cloth in the loom and winds it around the cloth-roll, bringing the latter into position against the takeup roll to begin the winding of the next eut. Sometimes the clothroll will not be rotated properly at the V'beginning of the cut, owing to the small diameter of the roll acted upon by the take-up roll or from some other cause, and the cloth will be carried around the take-up roll itself and wound thereupon, damaging the cloth and often breaking the loom.

My present invention has for its object the production of temporarily operative means for positively driving or effecting rotation ofthe clothroll at the beginning of a cut, so that no slip or other faulty action is possible, the positive drive automatically ceasing to act when the diameter of the cloth wound upon Serial No. 199,518. (No modelJ the cloth-roll is suflicient toinsure proper rotation by or through -frictional engagement with the takeup roll.

Figure 1, in front elevation, represents a suiiicient portionof the take-up mechanism of a loom to be understood with one embodiment of my invention applied thereto, the

positive drive for the cloth-roll being shown in operation. Fig. 2 is a vertical section thereof on the line 2 2, Fig. l, looking toward the right; and Fig. 3 is a sectional detail on the line 2 2, but showing the parts after the .positive driving means has ceased to operate.

The side frame A, stands F, (one at each side of the loom,) forming guides for the rackbars gx, in which the journals t of the cloth roll or bar TX are rotatably mounted, the roughened sand or take-up roll T, having an attached gear 57, positively driven by a suitable train of gearing M` Fig. 1, between it and the ratchet-wheel a, the take-up pawl a2, and pawl-carrier a may be and are all substantially as in the Patent No. 610,636, referred to, and operate substantially as therein set forth.

As shown in Fig. 2, the cloth C passes from the fell over the take-up roll and around it to the cloth-roll TX, upon which it is wound by frictional engagement with the take-up roll. In accordance with my present invention the take-up roll has an attached gear 10 to mesh at times with a smaller gear 12, fast on the clothroll TX, the diameters of the gears being such that they will only mesh when the two rolls arc quite near together, as at the beginning' of a cut, when very little cloth is wound upon the roll TX. This is shown in Figs. 1 and 2, and

it will be manifest that so long as the gears are in mesh the cloth-roll will be positively driven to wind the cloth thereon as it is woven. As the diameter of the mass of cloth increases the cloth-roll is pushed away from the takeup roll, and when a predetermined diameter of the cloth mass is attained the two gears l() and l2 will thereby be moved out of mesh with each other, and the further rotation of the cloth-roll will be eii'ected in usual manner by frictional engagement with the take-up roll, as 'in Fig. 3. When the winding is beginning, both the positive and the friction driving means act conjointly to rotate the cloth-roll, the positive drive absolutely preventing any slip or drag of the cloth-roll and insuring its proper rotation. The diameter of the positive driving-gears lO and l2 is so arranged that when they are moved out of mesh, as described, the diameter of the cloth mass on the cloth-roll will be sufficient to properly cooperate with the take-up roll.

My invention is not restricted to the precise construction and arrangement shown and described, as the same may be varied or modified by those skilled in the art without departing from the spirit and scope of my invention.

Having fully described my invention, What Iclaim as new, and desire to secure by Letters Patent, is-

1. In take-up mechanism for looms, a roll upon which the cloth is wound, and temporarily operative means to effect positive rotation of said roll only at the beginning of a cut.

2. In `take-up mechanism for looms, a roll upon which the cloth is Wound, friction-act ing means to rotate the roll, and separate means to effect positive rotation of the roll at the beginning of a cut.

3. In take-up mechanism for looms, atakeup roll, a roll driven by frictional engagement therewith, and upon which the cloth is wound, and means to positively rotate the roll for the cloth until a predetermined diameter of the cloth thereon has vbeen attained.

4. In take-up mechanism for looms, a roll upon which the cloth is wound, friction driving means therefor, and positive driving means for said roll, to rotate the same positively until the cloth thereon has attained a predetermined diameter.

5. In take-up mechanism for looms, a roll upon which the cloth is wound, friction driving and positive driving means for and to operate conjointly to effect rotation of said roll at the beginning' of a cut, and means operated by or through the cloth Wound upon said roll to automatically render the positive driving means inoperative when a predetermined diameter of cloth has been wound.

6. In take-up mechanism for looms, a takeup roll mounted in fixed bearings and having an attached gear, a roll upon which the cloth is Wound by or through frictional engagement with the take-up roll, movable bearings for said cloth-roll, and a gear on the latter adapted to mesh with and be driven by the take-up gear at the beginning of a cut.

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

EDWARD D. ROY. Vitnesses:

A. E. LEWIS, CALHOUN HARRIS.

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