US2837125A - Shuttle change magazine for looms - Google Patents

Description

June 3, 1958 E. A. BUTlN 2,837,125

SHUTTLE CHANGE MAGAZINE FOR LOOMS Filed April 8, 1953 2,837,125 SHUTTLE CHANGE MAGAZINE FOR LOOMS Emile Achille Butin, Lyon, France Application April 8, 1953, Serial No. 347,495 Claims priority, application France April 18, 1952 3 Claims. (Cl. 139-232) The present invention relates to shuttle change magazines having a plurality of chutes for looms with a plurality of shuttles and which, while possessing a star or radial arrangement of each of said chutes, makes it possible to send the shuttles to a fixed point between the branches of the distributor member, while insuring continuous guiding of said shuttles throughout their entire descent.

For this purpose, an object of the invention is to provide, at the base of each of the intermediate partitions bounding the diiferent chutes of the magazine, a freely articulated shutter moving under the thrust of the shuttle at the moment of the latters descent, in such a manner that there is formed a chute of constant section connecting the outlet of each individual chute to the branches of the distributor member.

The accompanying diagrammatical drawing shows, by way of non-limitative example, an embodiment of said magazine for a loom having two shuttles.

Fig. l is a side view in elevation of the magazine;

Fig. 2 is a partial View corresponding to Fig. 1, but wherein a spare shuttle is shown during its descending motion;

Fig. 3 is a front view in elevation; and

Fig. 4 is a partial view showing the articulation of the intermediate shutter.

Fixed to the support 1 integral respectively with the ice In each chute, the change shuttles 8 are piled on top of each other, and the one located at the bottom portion of the pile is stopped on each side by the action of the fingers 1(l17. These fingers 1017'are integral with a rod 12 having a crank pin 14 at its upper portion.

In the idle position, i. e.,' when no change shuttle has been emptied from the magazine, the tips of the fingers 10 retain the shuttle located at the bottom of the pile, said shuttle holding, by acting as direct support, the shuttles which are placed on top of it.

At the moment at which a change shuttle is to be released from one of the chutes of the magazine, a control mechanism including pins 14 is actuated and the rods 12 are. actuated. The two fingers 10 move aside, thereby releasing the bottom shuttle 8 and the latter drops while pushing aside the shutter 7 (Fig. 2) which insures an accurate guiding of the shuttle to its outlet point.

During the descent of a shuttle, the one located next I above is temporarily held back by the blades 17.

gantry and the frame of the loom, the magazine is formed by a frame 2 having in cross-section the general form of a V open at its base, the lateral walls 3 of which contain openings. Longitudinally, the magazine comprises an intermediate partition 4 which also is provided with openings and has the purpose of dividing the magazine into two chutes 5 and 6, respectively. One of the chutes is intended to receive shuttles of a certain color and the other is intended to receive shuttles of a different color.

The lateral walls 3 comprise extensions 3a descending below the partition 4. This partition carries, hinged to its lower edge, by a horizontal rod 7a, a shutter or movable partition 7, the lower end of which is situated at the level of the lower end of said extensions 3a. During the descent of a shuttle, this shutter 7 moves due to the thrust exerted by said shuttle forming between said shuttle and the outer wall of the magazine a chute which is an extension of the chute of the magazine from which the shuttle has fallen. Throughout the entire height of the magazine, therefore, the shuttle moves in a chute of constant section, such that it is impossible for it to turn.

The shutter 7 is freely articulated or hinged about the rod 7a located at the base of the intermediate partition 4 as noted above. As shown in Fig. 4, this partition is formed of two iron strips.

In Figs. 1 and 2, the chute 5 is shown devoid of change shuttles, in order to show the two fingers or blades 10 and 17 which release the shuttles from the magazine. The magazine 6 is shown as having three change shuttles 8, the lower one of which is in leaving position in Fig. 2. Fig. 2 also shows, by dotted line, the reverse position assumed by the shutter 7 when a shuttle is released from the chute 5.

The shuttles 8 are guided by their tips into the chutes 5 and 6 each of which has longitudinal bars 9 for this purpose.

What is claimed is: 1. In a shuttle-changing device for looms, a magazine comprising a plurality of adjacent shuttle-holding compartments, a downwardly flaring chute opening out' of the bottom of the magazine and including two side walls, partitions subdividing the space between the side walls into equal channels registering respectively with the different compartments of the magazine, the lower ends of the side walls of the chute extending down to points substantially lower than the lower ends of the partitions to form therewith passageways for the shuttles, and a flap pivotally secured to the lower end of each partition and adapted to rock sideways under the action of the shuttle engaging its lower end as it passes through any of the corresponding channels to allow said shuttle to drop through said passageway.

2. In a shuttle-changing device for looms, a magazine comprising two adjacent shuttle-holding compartments, a downwardly flaring chute opening out of the .bottom of the magazine and including two sidewalls, a partition subdividing the space between the side walls into equal channels registering respectively with the different compartments of the magazine, the lower ends of the side walls of the chute extending down to points substantially lower than the lower end of the partition to form therewith passageways adapted to guide exactly a single shuttle, and a flap pivotally secured to the lower end of the partition and adapted to rock between the lower ends of the two side walls to allow selectively a shuttle passing out of ,either superposed compartment and channel to drop through said passageway.

3. In a shuttle-changing device for looms, a magazine comprising two adjacent shuttle-holding compartments, a downwardly flaring chute opening out of the bottom of the magazine and including two side walls, a partition subdividing the space between the side walls into equal channels registering respectively with the dilferent compartments of the magazine, the lower ends of the side walls of the chute extending down to points substantially lower than the lower end of the partition to form between them two passageways adapted to guide exactly a single shuttle, and a flap pivotally secured to the lower end of the partition and adapted to rock between the lower ends of the two side walls to allow selectively a shuttle passing out of either superposed compartment and channel to drop through said pasageway.

References Cited in the file of this patent UNITED STATES PATENTS 633,945 Baker et al. Sept. 26, 1899 2,129,994 Dickie et al. Sept. 13, 1938 2,572,107 Butin Oct. 23, 1951

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