US331886A - Picking-shoe for looms - Google Patents

Description

(No Model.)

J. L. INMAN & E. H. STEVENS.

PIGKING SHOE FOR LOOMS.

No. 331,886. Patented Dec. 8, 1885.

N PEIERS. mmuzmn h-r. Washington, In:

Parent.

JOHN L. INMAN AND EDGAR H. STEVENS, OF PUTNAM, C ilNEC' lCUll.

ING-SHOE. FOR LOOWS.

LJBCIFICATION forming part of Letters Patent No. 331,886,

Application filed August H, 189

To (LZZ whom, it may concern;

Be it known that we, JOHN L. lNMAN and EDGAR H. STEVENS, citizens of the United States, residing at Putnam, in the county of \Vindham and State of Connecticut, have in vented certain new and useful Improvements in PickingShoes for Looms, of which the following is a specification, reference being had therein to the accompanying drawings.

Our invention relates to what are known as picking-shoes for looms. The picking shoe is a casting attached to a square shaft, which passes across the frame of the loom, and from which projects upwardly an arm or lever, which is connected with a picker-staff. For rocking this shaft the shoe receives an impulse generally from a revolving arm just above it, which carries a roller which strikes the shoe at each revolution,and pushes it down ward. This rocks the shaft and gives the throw to the shuttle. These shoes have heretofore been made of castiron, and are rapidly worn out by the repeated blows of the roller which operates them.

The object of our invention is to provide a shoe which will be so constructed that when it becomes worn it may be quickly restored to its original shape, and this without the stoppage of the loom for an unnecessary length of time.

Referring to the drawings, Figure 1 is a perspective of a pickingshoe constructed in ac cordance with our invention, and a part of its carryingshai't, and Fig. 2 is a perspective of the removable section of the shoe.

Like letters indicate like parts in both fig ures.

A represents a portion of the square shaft, which passes across the frame of a 100111, and from which projects the arm or lever connected with and operating the picker-staff which throws the shuttle.

13 represents the picking-shoe, and it consists of a single casting, with one exception, hereinafter described, and comprises a sleeve, 13, adapted to fit the shaft A, said sleeve being provided with a boss, 13*, perforated and screwthreaded for the reception of a set screw or bolt, 0, by which the sleeve portion of the shoe is securely bound to or fastened upon the shaft A. From the sleeve portion extends a plate or thin portion, B and this terminates Serial X0. 140,5 7. (X0 inzzdl l.)

in an upwardlyprojecti21g ilangc, B B, which constitutes the working-face or cam of the shoe, against which comes in contact the roller carried by the arm revolving above the shoe, as above described.

As the shoe is depressed by the arm, the roller first comes in contact with the point 1 of the can], and as it rides along the section B and reaches the point 2, the shalt A is oscillated or partially turned, and as. the roller passes ott' from the point 3 the shaft returns to its normal position.

In practice the cam or flange of the shoe soon wears away at the point 2 to such an extent that there is less than the required mo tion given to the shaft A, and therefore a new shoe is required, and this necessitates a stop page of the loom for a time sufficient to remove the shaft and shoe, and replace the worn shoe by another.

A section, B of the cam portion of the shoe is, in a manner hereinafter described, adapted to be removed, and to be replaced by another, so that when repairs are necessary, the simple operation of removing said section and re placing another can be performed in much less time than the removal of the entire shoe. The front end of the section B is provided with dovetail or V joint, B, which is adapted to fit the shoe proper, which is formed with a similar outline orjoint, B". The opposite entLB", of the section is fori'ned concave or straight, to agree with a like formation of the shoe proper.

D represents a bolt, which passes through the casting and into a seat, 13*, formed in the end of the section j.

When it is desired to replace one of the sec tions B with another, all that it is necessary to do is to unscrew the bolt until its end is freed from the section, and withdraw the section sidewise from the recess formed in the shoe to receive it, and to replace another in the same manner, and secure it iirznlyin place by the bolt D, which is the work of but a few moments.

When the end B of the section B is square and the jointorpor on B"ofthe shoeis square, the section may be removed laterally, and at the same time be of such a length as to quite snugly tit the recess, terminating at the joints B B". The section B may be removed, when the joint is square, by lifting the end at the point 1 vertically, when the section is slightly shorter than the recess.

The joint B" may be made convex and the joint I) concave, as shown by dotted lines, Fig. 1, so that the section 13 may be removed vertically after the screw D is withdrawn by first lifting the end 2 vertically from the recess.

The vertical removal of the section is preferable to the lateral removal. of the same when the latter would interfere with adjacent parts of the loom, and we therefore reserve the right to construct the joints of the cam-section at its screw-seated end for either vertical or lateral removal.

To render the application, operation, and feasibility of our in vention obvious, reference is given to the patent of Hall, granted June 1, 1869.

Having described our invention, what we claim is 1. A picking-shoe for looms, the cam por tion of which is formed of two sections, one pror'ided with a V-joint, B, and the other provided with a similar joint, B and with a. tightening-bolt, D, substantially as specified.

2. The combination of the shoe B, comprising the sleeve B, the flange B and the cam portion B, having" the V-joint B and bolt D, with the section B having the V j oint 13, substantially as shown and described.

3. A picking-shoe for looms, provided at its cam portion with a section constructed for lateral removal, said section being provided with a V-shaped joint at one end adapted to fit a similar joint provided on the body of the shoe, substantially as specified.

In testimony whereof We affix our signatures in presence of two witnesses.

JOHN L. INMAN. EDGAR H. STEVENS.

Witnesses:

EDWARD MULLAN, HOWARD S. THoMrsoX.

Images