US2051020A - Box front for looms - Google Patents

Description

Aug. 18, 1936. w, H, BAHAN 2,051,020

130x FRONT FOR LOOMS Filed April 30, 1934 WILL/QM H BHHHN Qwuwwto b Patented Aug. 18, 1936 UNETED STATES PATENT @FFIQE BOX FRONT Foa LOOMS William H. Bahan, Greenville, S. 0.

Application April 30, 1934, Serial- No. 723,204

2 Claims. (01. 130-243).

This invention relates to an improved box front for looms of the battery type and especially to the provision of a box front which will prevent undue breakage of the same and also will allow bobbins which are transferred too late to pass through the mechanism of the loom without undue breakage of the parts.

It has been the experience of many loom operators to have the bobbin support engage the inner surface of the box front of a loom and to thus result in the breakage of either the box front or other portions of the battery or transferring mechanism.

It is an object of this invention to provide an improved box front for looms which is so constructed as to prevent the bobbin support from engaging the box. front and breaking the same or other parts of the loom in the transferring of a bobbin from the magazine to the shuttle.

It is also an object. of this invention to provide an improved box front for looms which will not be engaged by the bobbin support in the transferring operation to break either the box front or other parts of the loom, and at the same time to provide a box front which will allow farther downward movement of the bobbin support when a bobbin is transferred late and thus allow the bobbin to be passed along the outer side of the box front and between the outer surface of the box front and the fixed bobbin guide and thus preventing breakage of parts upon such false transfer of bobbins.

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

Figure 1 is a side elevation and partial section of a portion of a filling replenishing mechanism with my invention applied thereto,

Figure 2 is a sectional plan view taken along line 2-2 in Figure 1;

Figure 3 is an enlarged elevation of the lefthand portion of Figure 2;

Figure 4 is an isometric view of a portion of one of the guides showing the depressed portion in the upper surface thereof;

Figure 5 is a perspective view of one of the collars used in connection with the front guide 3| for adjusting the width of the shuttle box.

Referring more particularly to the drawing the numeral l denotes a loom frame upon which is mounted a hopper stand H which, in turn, has rotatably mounted therein a hopper l2. This hopper is given a step by step rotative movement to present a bobbin l3 to position for transfer after each replenishing operation. The. bobbins |3' are mounted in hopper l2 and are transferred from the hopper to. the shuttle by a transfer arm M which is pivotally mounted on a stud l mounted upon the loom frame. 5

Extending downwardly from the hub portion of the transfer arm I41 is the arm IE to which is pivotally connected at ll. the dog I 8 which is adapted to be engaged by the'bunter I9 on the lay 2.9 as the latter moves forwardly when the 10 replenishing operation is to be effected. Lay 20 is pivotally mounted for oscillation by swords (not shown) on a suitable rocker shaft. (not shown) ,and is adapted to oscillate back and forth beneath the hopper in a Well known fashion, as the fabric is woven. The dog l8 may be under the control of a train of mechanism which indicates the condition of the filling in the shuttle, but as such mechanism forms no part of the present invention, it is not herein shown and described.

The transfer arm I4 has extending therefrom, laterally and then downwardly an arm 2| which engages the outer or tip end portion of the bobbin 3 during the transferring operation.

Secured in fixed position to the shaft I5 is an arm 22 on which is pivotally and resiliently mounted a tip support 23, which supports the tip end of the bobbin prior to its transfer into the shuttle. For supporting the butt end of the bobbin in the same position, a bobbin support 25 is pivotally mounted on a bolt 26, said bolt 26 being secured in the lower portion of hopper stand I I.

A torsion spring 21 has one end secured in bolt 26 and the other end engaging support 25 causing the support to resiliently support the butt end of the bobbin prior to its transfer into the shuttle.

A guide 28 is secured on the loom frame for assisting the bobbin support 25 in guiding the bobbins into the shuttle.

The structure described thus far is conventional and it is with a structure of this type that my invention is associated. Lay 20 has in the upper end thereof a shuttle box which is comprised of a suitable base 29 and guides 30 and 3| in which a suitable shuttle 32 is adapted to enter and be expelled by picker stick 33. Disposed between the guides 30 and 3| and the shuttle 32 are lining strips 35 and 36, which are usually made of leather, to prevent excessive wear on the shuttle. The part 3| and associated parts comprise my invention.

It is seen that a sloping cut-away portion 3'! is provided in the upper surface of box front 3| and that the upper edge of portion 31 is slightly below the top of strip 35. In operation of the looms with the conventional box front having no depression in the upper side thereof, it has been found that in case there was a late transfer of the bobbin that the bobbin support often was not allowed to move downwardly far enough to allow the bobbin to pass betweenthe support 25 and the guide 28 and resulting in breakage of parts. The cut-away portion 31 allows further downward movement of the bobbin support 25 and thus allows the late transferred bobbin to fall to the floor. bin support 25 is beveled off with its upper edge slightly below the upper edge of the leather lining 36 the tip of the bobbin support cannot engage the upper edge of the guide but will contact the upper edge of the lining 36 which, in turn, will guide the leading edge of the support over depressed surface 31 as the lay 20 is oscillated to the right in Figure 1. As has been described, the conventional lay 20 is pivoted on a suitable rocker shaft below, consequently, the upper edge of the box front describes an arc of a circle and by having a beveled portion the bobbin support is not moved upwardly by the outer edge of the box front 3| and thus the bobbin which is transferred late and misses the shuttle is allowed to pass between the bobbin guide and the bobbin support. One of the'chief advantages of the depression 31 in the box front 3| is that breakage of the member 3| is prevented. It often happens in conventional box fronts, that as the bobbin is transferred, the tip of the bobbin support 25 will not have receded sufliciently to miss the inner edge of the box front, causing the tip of the bobbin support to engage the inner sidewall of the box front 3| and break either the box front or other portions'of the loom, such as the hopper.

Since the upper surface opposite the bob-r ing the position of the box front 3| with relation to guide 30 have been provided. By referring to Figures 1, 2 and 3 it is seen that box 3| has suitable lugs 40 and 4| integral therewith which have a hole in the center thereof in which is adapted to be inserted the restricted portion 42 of collar 43 as shown in Figure 5. Collar 43 has an eccentric hole 44 therein which is penetrated by stud bolts 45 and 46, said bolts being threadably secured in base member 29. It is evident that when a tool is inserted in one of the holes 43a to turn collar 43, that the box front 3| can be adjusted with relation to guide 30.

V In thedrawing 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 forpurposes of limitation, the scope said shuttle box, said box front having a flexible lining and said box front having a depression in the upper edge thereof disposed below the edge of the upper lining and coinciding with the bobbin support as the lay is oscillated and preventing engagement of the box'front byv the bobbin support.

2. A battery loom having a bobbin support and a shuttle box provided with a box front, a lining for said box front, said box front having a depression in the upper edge thereof disposed in the same vertical plane as the bobbin support whereby upon oscillation of the shuttle box during transfer of a bobbin into the shuttle box the bobbin support is prevented from engaging the inner sidewall of the box front.

WILLIAM H. BAHAN.

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