US769679A - Filling-detecting means for looms. - Google Patents

Description

No. 769,679. PATENTED SEPT. 6, 1904. A. E. BENSON. FILLING DETECTING MEANS FOR LOOMS.

APPLICATION FILED JUNE 27, 1904.

N0 MODEL.

UNITED STATES Patented September 6, 1904.

PATENT OFFICE...

ARTHUR E. BENSON, OF MAGNOLIA, MISSISSIPPI, ASSIGNOR TO DRAPER COMPANY, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

FILLING-DETECTING MEANS FOR LOOIVIS.

SPECIFICATION forming part of Application filed June 27, 1904.

To all whont it may concern:

Be it known that I, ARTHUR E. Emerson, a citizen of the United States, residing at Magnolia,county of Pike, and State of Mississippi, have invented an Improvement in Filling-Detecting Means for Looms, of which the follow- I ing description, in connection with the accompanying drawings, is a specification, like numerals on the drawings representing like parts.

My present invention has for its object the production of novel means to absolutely insure the accurate positioning of the grid in a loom with relation to the tines of the filling- :fork on the forward beat of the lay, so that the fork and grid cannot engage each other. If the fork-tines strike the grid, the fork will be tilted and operate just as if the filling were present, and should this occur when the filling is absent the loom will continue weaving and a thin place will be made in the cloth.

As is well known, the lay sometimes has a side movement and the grid is thereby moved laterally, so as to bring its bars into engagement with the tines and tilt the fork, with the result above mentioned. 1n the present embodiment of my invention 1 have made the grid laterally movable on the lay, the forkslide moving in a fixed path, and l have provided intermittingly-operating means to cooperate with the grid and accurately position the same with relation to the fork.

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

Figure 1 is a top or plan View of a portion of a loom-lay with a grid movably mounted thereon in accordance with one embodiment of my present invention and showing the means for accurately positioning the grid with relation to the filling-fork. Fig. 2 is a front elevation of the grid and the adjacent portions of the lay. Fig. 3 is a transverse section on the line 3 3, Fig. 1, looking toward the left; and Fig. 1 is a plan view of the parts shown in Fig. 1, but with the grid-positioning means almost ready to move the grid into proper position,

Letters Patent No. 769,679, dated September 6, 1904.

Serial No. 214,270. (No model.)

i the lay having been illustrated as moved sidewise to the right.

The lay 1, having a transverse recess 2 in its raceway to permit the passage of the forkl tines, the filling-fork 3, pivotally mounted on a slide at, movable in a fixed path in its stand or guide 5, rigidly secured to the breast-beam 6 of the loom, and the weft-hammer 7, having a hook 8 to be engaged by the fork-tail 9 when the fork is not tilted, may be and are all of well-known construction and operate in usual manner.

In the present embodiment of my invention the upturned grid or grating 10, located at the rear end of the recess 2, has a forwardlyextended enlarged fiat foot 11, which rests upon the bottom of the recess 2., said foot having an elongated slot 12 parallel to the length l of the lay to receive the shank of a headed l guide and retaining screw 13. Behind the i lay the back of the foot is bent down, as at 1%, Fig. 3, and dotted lines, Fig. 2, and provided with an elongated slot 15 to receive a headed screw 16, the two screws permitting lateral movement of the grid bodily in the recess, while the downturned part H prevents any rotative or twisting movement of the grid on screw 13 as a center. Leaf-springs lTare secured at their front ends to the sides of the recess 2, while their free ends engage the lower part of the grid on opposite sidesthereof and normally maintain it in position opposite the filling-fork. If the lay moves sidewise, the grid will be moved so that it will be struck by the fork-tines, and to prevent this and accurately position the grid with relation to the filling-fork the lay beats up 1 have provided the rear end of the fork-slide & with two rearward projections 18, one at each side. The inner parallel faces 19 of the projections are separated sufiiciently to easily embrace l the grid when the lay beats up, and said faces are outwardly beveled or flared, as at 20. near their rear ends, making a flaring entrance to the space between the faces 19. As shown in Fig. 3, the projections 18 are bent downward to engage the grid below its upper end, and if there is no side motion of the lay the pro jections slide freely past the sides of the grid. If the lay is moved sidewise, however, as in Fig. 4, one of the sides of the grid will engage a beveled face 20 on one of the projections 18, and as the lay completes its forward beat such face will act as a cam to push the grid in the opposite direction laterally until it can enter between the faces 19, thereby accurately positioning the grid with relation to the fork. One or the other of the controllingsprings 17 will be compressed when the grid is thus moved laterally on the lay, and as soon as the grid is disengaged from the described projections (as the lay swings back) the springs will center the grid in the recess 2.

WVith the construction herein shown the grid will always be accurately positioned irrespective of side movement of the lay, so that as the lay beats up the grid and fork will be in their proper and accurate relative positions.

The particular construction and arrangement of the parts herein shown and described may be varied in diflerent particulars by those skilled in the art without departing from the spirit and scope of my invention.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s

1. In a loom, a lay having a laterally-movable grid, a filling-fork, its slide, a rigid stand in which the fork slides, and intermittinglyoperating means to cooperate with the grid and accurately position the same with relation to the fork.

2. In a loom, a lay having a laterally-movable grid', a filling-fork, a slide therefor movable in a fixed path, and means operative on the forward beat of the lay to move the grid laterally into accurate position with relation to the fork.

3. In a loom, a lay having a laterally-movable grid, a filling-fork, a slide therefor movable in a fixed path, and means mounted on the slide to cooperate with the grid on the forward beat of the lay and insure the accurate positioning of the grid With relation to the fork.

4. In a loom, a lay having a laterally-movable grid, spring-acting means to normally control it, a fillingfork, its stand movable in a fixed path, and means on the stand to engage the grid on the forward beat of the lay and when necessary to move it against the action of said spring-acting means and into accurate position with relation to the fork.

5. In a loom, a lay having a laterally-movable grid,springs acting thereupon to normally position it, a filling-fork, its slide, and means mounted thereon to engage the grid as the lay beats up and when necessary move the grid sidewise in one or the other direction to accurately position the same with relation to the fork.

6. In a loom, a lay having a grid laterally movable thereon, yielding means to normally prevent such movement, a filling-fork, and means to engage the grid on the forward beat of the lay and cause accurate and positive positioning of the same with relation to the fork irrespective of any lateral motion of the lay. 7. In a loom, a lay having a grid laterally movable thereon, yielding means to normally prevent such movement, a filling-fork, its stand movable in a fixed path, separated and oppositely acting cam projections on the stand to receive between them the grid on the forward beat of the lay and thereby insure accurate positioning of the grid with relation to the fork. I In testimony whereofI have signed my name to this specification in the presence of two subscribing witnesses.

ARTHUR E. BENSON.

Witnesses:

R. W. (JUTER, E. E. THIGPEN

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