US2385034A - Shuttle feeler tip - Google Patents

Description

Sept. 18, 1945. E. P. SHEETZ ET AL 2,385,034

SHUTTLE FEELER TIP Filed June 9, 1944 2 Sheets-Sheet 1 ALEXANDER J. CHAG'M Sept. 18, 1945.

. E. P. SHEETZ ET AL SHUTTLE FEELER TIP Filed June 9, 1944 2 Sheets-Sheet 2 Patented Sept. 18, 1945 SHUTTLE FEELER TIP Elwood P. Sheetz, Pembroke, and Alexander J. Chagnon, Pittsfield, N. H.

Application June 9, 1944, Serial .No. 539,440

4 Claims.

This invention relates to a new type of tip for shuttle feelers in looms which not only acts as a shuttle feeler, but also which acts to remove from the path of the shuttle, thread from the outgoing bobbin during a transfer operation and also to engage the thread from an incoming bobbin on the forward beat of the lay following the first pick after replenishment and to hold said thread out of the shuttle path.

It is an object of this invention to provide means associated with a shuttle feeler in a loom to prevent loose or surplus threads from being woven into the cloth.

It is another object of the invention to provide means in a loom to prevent the occurrence of What is sometimes called a pull-in.

Some of theobjects of the invention having been stated, other objects will appear as the description proceeds, when taken in connection with the accompanying drawings, in which:

Figure 1 is a transverse sectional view through a portion of' a loom showin the invention applied thereto;

Figure 2 is an elevation of the invention;

Figure 3 is a top plan view of the invention showing it attached to the shuttle feeler arm;

Figure 4 is an elevation showing a shuttle feeler arm equipped with another form of the invention;

shown in Figure 4;

Figure 6 is a view similar to Figure 4, but showing a modified form of the invention Figure 7 is a top plan view of the feeler tip shown in Figure 6.

Referring more specifically to the drawings, the breast beam of the loom is indicated at l and has fixedly mounted thereon the usual filling feeder which comprise two disks or plates to receive, hold, and position the spare filling carriers. One of these disks or plates is shown at 2. The hopper stand 3 with its integral casing 4 inclosing the disk 2 toward the center of the loom is secured in the usual manner to the breast beam.

The filling carriers or bobbins are as usual held by their butts and tips by and between the two disks of the hopper or feeder in a circularly arranged series, the seats for the butts being shown at 6 in the disk 2. The filling carriers are brought one by one into position for transfer from the hopper or feeder to the running shuttle by the usual mechanism, such, for example, as illustrated and described in the patent to Stimpson and Southwick, No. 823,644 granted June 19, 1906. The filling replenishing mechanism also Figure 5 is a top plan view of the feeler tip comprises a transferrer l pivotally mounted at 8 on the hopper stand and operating when depressed or moved downward to transfer a filling carrier from the hopper to the shuttle. A notched dog 9 is pivoted at III to the depending arm of the transferrer and upon the call for filling replenishment is swung upwardly into the path of a hunter I I carried by the lay l2, all in a manner well known and familiar in this type of automatic filling replenishing looms.

The shuttle feeler l3 rocks and slides on the hub I4 and is provided with a thread catcher IS, the details of which will be presently described. The shuttle feeler is provided with a usual projecting pin l6 projecting from the shank of the feeleryand this pin is engaged by the arm [1 connected to the usual rock shaft l8, and is held against the pin by the spring IS. The dog 9 is operated from the shuttle feeler by means of the cam slotted arm bolted at 2| to the shuttle feeler. The construction and operation of this mechanism is well known and familiar to those skilled in the art. In the operation of this type of loom when a replenishment of filling is called for, the shaft I8 is rocked in the usual manner raising the arm I! and allowing the shuttle feeler and thread catcher IE to swing toward the lay.

If the shuttle is properly boxed, the feeler will pass in front of the shuttle in the usual manner,

. the dog 9 will be brought into the path of the hunter H, and the transferrer 1 will be operated in the usual manner to transfer the filling carrier from the hopper into the shuttle therebeneath. If the shuttle be improperly boxed so that it is struck by the shuttle feeler, or if the shuttle feeler .be restrained in its forward movement so as not to bring the dog 9 into the path of the hunter I I, transfer of the filling carrier from the hopper or feeder will not be effected.

Some shuttle feelers have plain ends and others have thread catching and clamping means on the free ends thereof as shown in the patent to Rhoades, No. 1,124,527 of January 12, 1915, the purpose of which is not only to detect if the shuttle is properl boxed, but also to clamp and out the filling of the outgoing filling carrier. Instead of such an arrangement, it is the purpose of this invention to provide a new feeler tip for the shuttle feeler adapted to cooperate with a Stafford thread cutter of well known structure as employed on a Draper automatic loom, the details of such thread cutter and associated mechanism being shown in Patents 2,093,696 of September 21, 1937; 1,565,218 and 1,565,219 of December 8, 1925; 2,028,560 of January 21, 1936:

1,768,502 of June 24, 1930; 1,552,388 of September 1, 1925; 1,568,481 of January 5, 1926.

With a loom equipped with such mechanism as shown in said patents, when a bobbin in the shuttle is nearly empty, it is automatically knocked from the shuttle by an incoming bobbin moved from the battery by the transfer arm. When this operation is taking place, the Stafford thread cutter as shown in said patents, goes into motion, reaching up through an opening in the front box plate and catching, the thread of the bobbin and holding the same until the temple knife cuts the threads from both the outgoing and incoming bobbins. Under the present mechanisms as disclosed in said patents, these out threads even though held by the clamp fall on or are caught on the outgoing shuttle and are pulled into the cloth. The present invention relates to a new type of tip for a shuttle feeler which not only acts to feel for an improperly boxed shuttle, but also engages and pulls the ends from outgoing bobbins from the path of the shuttle and thus prevents these loose ends from being pulled back into the cloth being woven, and also engages ends from incoming bobbins and holds them out of the path of the shuttle when said ends are moved forward by an element on the front plate of the shuttle box such as element 23 of the patent to Burdett No. 1,812,079.

Figures 1, 2, and 3 show the shuttle feeler equipped with the thread catcher or pull-in eliminator 15, which at one end has a hole 25 therethrough and has vertical ribs 26 on one face to fit against one side of the free end of the shuttle feeler arm I3. A suitable bolt 21 has a tapered Washer 28 therearound fitting into the tapered portion of hole 25, anda nut 29 securely affixes the member 15 to the arm l3.

Instead of a blunt free end, the member 15 has a pointed end 30 with a sloping upper face 3i merging with a less steep portion 32, which terminates with a forwardly sloping and converging notch 33 which terminates in a transversely disposed enlarged cavity 34. It is to be noted that thepoint of junction of surface 32 and the lefthand wall of notch 33 forms a point 35 which is at a greater elevation than the upper surface 36 of the member l5, so that when the left-hand end of the member I5-passes across the path traveled by the shuttle, the thread will ride up the inclined surfaces 3| and 32 and rest on the surface 36. Then when the shuttle feeler arm returns towards normal position as shown in Figure 1, the thread will fall into notch 33 and will, be carried along with member I5 to remove it from the path of the-shuttle.

In Figures 4 to 7, inclusive, there is shown a modified form of feeler tip and pull-in eliminator. The structure in Figures 6 and 7 being the same as shown in Figures 4 and 5 except that the overall length of the feeler tip and pull-in eliminator is less in Figures 6 and 7 than in Figures 4 and 5, to suit the same to a loom havin a longer feeler arm.

' Like reference characters will apply to like parts in Figures 4 to 7 as much of the structure has already been described.

The feeler tip and pull-in eliminator 40 shown in Figures 4 to 7 in addition to the pointed end 30 has a hook 4| on its upper surface, and also has a finger 42 whose free end is turned upward- 1y to engage the loose threads and guide them onto the surface 43 behind the hook 41 so that the threads will surely be engaged by the hook 4|.

The incoming ends are also caught in the notch 33 while the shuttle feeler arm is in withdrawn position as shown in Figure 1 due to the fact that the box has a projection such as noted by reference symbol 28 in Patent No. 1,812,079 projecting upwardly therefrom which engages the incoming ends and moves them over to where they will fall in the notch 33 upon oscillation of the lay.

In the drawings and specification, there has been set forth a preferred embodiment of the invention, and although specific terms are employed, they are used in a generic and descriptive sense only and not for purposes of limitation, the scope of the invention being defined in the claims.

We claim:

1. In an automatic loom having means for transferring a filled bobbin into a shuttle and expelling an empty bobbin, and having a shuttle feeler for moving during a transfer operation across the path travelled by the shuttle, said shuttle feeler having a pointed tip on its free end and having a cavity in its upper surface so that the free end will pass beneath the thread from the outgoing bobbin so it will fall into said cavity, and upon reverse motion of the shuttle feeler, will pull the said thread out of .the path travelled by the shuttle.

2. In an automatic loom having means for transferring a filled bobbin into a shuttle and expelling an empty bobbin, and having a shuttle feeler for moving during a transfer operation across the path travelled by the shuttle, said shuttle feeler havin a pointed tip on its free end and having a cavity in its upper surface so that the free end will pass beneath the thread from the outgoing bobbin so they will fall into said cavity, and upon reverse motion of the shuttle feeler, will pull the said thread out of the path travelled by the shuttle, the tip portion of the shuttle feeler having a finger rising therefrom and projecting above and past said cavity and having its free end upturned so as to guide the thread beneath the finger and into said cavity.

3. In a loom having a shuttle feeler arm, a member mounted on the free end of the arm and adapted to traverse the path travelled by the shuttle and to pass beneath the thread extending along the lay from the shuttle, said member having an upwardly sloping free end and also having a hook and cavity on its upper free end for engaging the thread extending from the shut tle and removing the thread from the path travelled by the shuttle.

4. A loom having a shuttle feeler pivoted at one end for swinging movement and having its other end provided with a notch and hook on its upper surface so that when the feeler swings, its free end will move across the path of the shuttle and engage the thread extending from the shuttle and upon reverse swinging movement will withdraw said thread from the path of the shuttle.

ELWOOD P. SHEETZ. ALEXANDER J. CI-IAGNON.

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