US770454A - Tilting reed mechanism for looms - Google Patents

Description

770,454 PATENTED SEPT. 20, 1904 B. W. DAVENPORT. TILTING REED MECHANISM FOR LOOMS.

APPLICATION FILED JUNE 11, 1904.

NO MODEL.

UNITED STATES Patented September 20, 1904.

PATENT OEEIcE.

EDWARD W. DAVENPORT, OF SOUTH FRAMINGHAM, MASSACHUSETTS,

ASSIGNOR TO CROMPTON 8: KNOWLES LOOM WORKS, A CORPORA- TION OF MASSACHUSETTS.

TILTING REED MECHANISM FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 770,454, ted September 20, 1904.

Application filed June 11, 1904.

To all whom, it may concern:

Be it known that I, EDWARD W. DAVENPORT,

a citizen of the United States, residing at South Framingham, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Tilting Reed Mechanism for Looms, of which the following is a specification.

My invention relates to looms, and more particularly to atilting reed mechanism for a loom.

-In weaving chiffon, gauze,veiling, and other extremely light fabrics it is desirable to provide mechanism for compensating for irregular filling and also for a lost pick caused by the filling breaking or running out. In the ordinary mechanism used for the purpose above mentioned the reed is so constructed that it will always give or spring back a short distance in beating up the filling, except when the filling breaks or runs out, in which case it does not spring back as far, thus making up for the lost pick.

The object of my invention is to improve upon the ordinary construction of the yielding or spring reed in looms for weaving the class'of goods referred to.

In my improvements the filling is beaten up by the reed when it is in a sloping position, the warp-threads having a tension sufficient to cause the fabric to slide up the incline made by the reed at each pick. In case the filling breaks orruns out the fabric does not slide up the reed as far, thereby making up for the lost pick and preventing thin places in the fabric. While in my improvements the reed must be in an inclined position when the lay heats up, it must also be made to take an upright position or extend at right angles to the shuttle-race on the lay while the shuttle is passing across the lay in order that the shuttle will not leave the shed or break out the warp, all as will be hereinafter fully described.

1 have only shown in the drawings suflicient portions ofa loom and a tilting reed mechanism embodying my improvements combined therewith suflicient to enable those skilled in Serial No. 212,062. (No model.)

the art to which my invention belongs to make and use the same.

Referring to the drawings, Figure 1 is a rear view of one end of the lay and reed and my improvements combined therewith lookin the direction of arrow a, Fig. 2. Fig. 2 is a section on line 2 2, Fig. 1, looking in the direction of arrow Z), same figure; and Fig. 3 shows a detached section of the upper part of the lay in its rear position with the tilting reed in its upright position.

In the accompanying drawings, 1 is a portion of the loom side or frame.

2 is the lay-sword, mounted at its lower end on the shaft 3, supported in bearings 4: on the stand 1, bolted to the frame 1. On the upper end of the lay-sword 2 is secured the lay 5 and the hand-rail 6 in the usual way.

Rocking motion is communicated to the lay through a connector (not shown) from the lay-sword to a crank-shaft (not shown) in the ordinary and well-known way.

I will now describe my improvements in tilting reed mechanism. A stand 7, having an elongated slot 7 therein,-is secured to the lower part of the frame 1. A stud 8extends through the slot 7 and is adjustably held therein by means of acollar or washer 8 and a nut 8". (See Fig. 1.) Pivoted on the stud 8 is an arm 9, having a boss 9 on its outer end to receive the lower end of a rod or connector 10. On the lower end of the connector 10 below the boss 9' is adjustably secured by a set-screw 11 a collar 11. A spiral compression-spring 12 encircles the connector 10 between the boss 9 and a collar 13, adjustably secured on the connector 10 by a set-screw 13. The upper end of the connector 10 is pivotally attached to a stud 14.- on a rearwardly-extending arm 15 on the tilting frame carrying the reed 16. The tilting reed-frame, only one end of which is shown in the drawings, has in this instance an end bar 17 ,which is pivotally mounted at its lower end in this instance on a stud 18 in the lower end of a bracket or stand 19, secured to the rear of the lay-horn, in this instance by a bolt 19. (See Fig. 1.) The top bar 20 and the lower bar 21 of the-tilting reed-frame are grooved longitudinally to receive the upper and lower edge of the reed 16 and hold the same in the tilting frame. The ends of the bars 20 and 21 are secured to inwardly-extending lugs 17 on the end bar 17, in this instance by screws 22. (See Fig. 1.) The end bar 17 has an outwardly-extending projection 17", which in the backward tilting of the reed is adapted to engage an adjustable screw 23 to limit the tilting movement of the reed. The screw 28 is in this instance adjustable in and out in an extension 19 on the stand or bracket 19.

From the above description, in connection with the drawings, the operation of my improvements will be readily understood by those skilled in the art. On the rearward motion of the lay the spring 12 on the lower end of the rod 1.0 will act to hold the rod 10 and prevent its lower end from being moved through the boss 9 on the arm 10, and consequently the tilting reed will be moved from its inclined position (shown in Fig. 2) into its upright position (shown in Fig. 3) preparatory to the throwing of the shuttle through the shed across the lay. As the lay beats forward the tilting reed moves with it, and the rod 10 moves up through the boss 9 on the arm 9 until the collar 11 engages said boss 9 and prevents any further upward movement of the rod 10, so that the rod holds the tilting reed and its supportingframe and brings it into an inclined position, as shown in Fig. 2, as the lay continues to move forward to its extreme forward position. The inclined position of the reed causes the fabric to slide up the incline made by the reed. If the filling breaks or runs out, the fabric does not slide up the reed as far, thereby making up for the lost pick and preventing thin places in the fabric, as will be well understood by those skilled in the art.

- It will be understood that the details of construction of my improvements may be varied, if desired.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In the tilting reed mechanism of a loom, the combination with the lay, of a tilting reed, and means for tilting the reed backward on the forward beat of the lay and before the lay reaches its extreme forward position, substantially as shown and described.

2. In the tilting reed mechanism of a loom, the combination with the lay, of a tilting reed, and means for tilting the reed backward at its upper end before the lay reaches its most forward position, and for tilting the reed forward at its upper end. on the backward movement of the lay, to bring it in its upright position when the lay is in its extreme backward position, substantially as shown and described.

8. In the tilting reed mechanism of a loom, the combination with the lay, of a tilting reed, and means for tilting the reed backward at its upper end on the forward beat of the lay, and before it reaches its extreme forward position, and for tilting the upper end of the reed forward on the backward movement of the lay, said means comprising a rod attached to the reed-frame, and a spring thereon for actuating said rod in one direction, substantially as shown and described.

4:. In the tilting reed mechanism of a loom, the combination with the lay, of a tilting reed, and means for tilting the reed backward at its upper end on the forward beat of the lay, and before it reaches its extreme forward position, and for tilting the upper end of the reed forward on the backward movement of the lay, said means comprising a rod attached to the reed-frame, and having a spring thereon for actuating said rod in one direction, and said rod being adjustable at its lower end, to vary the movement of the reed, substantially as shown and described.

EDWARD W. DAVENPORT.

Witnesses:

T. L. NELSON, M. HAAS.

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