US1238791A - Picker-check. - Google Patents

Description

J. K. LANNING.

PICKER CHECK. APPLICATION FILED AUG-I61 l9l5.

1,23%,791 Patented Sept; 4, 1917.

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JAMES K. LANNING, or FALL Riven, MASSACHUSETTS.

PICKER-CHEGK.

Specification of Letters Patent.

Patented Sept. 1, 191%.

Application filed August 16, 1915. Serial No. 45,624.

To all whom it may concern:

Be it known that I, JAMES K. LANNING, a citizen of the United States, and a resident of Fall River, in the county of Bristol and State of Massachusetts, have invented an Improvement in Picker-Checks, of which the following descriptiomin connection with the accompanying drawings, is a specification, like characters on the drawings repre senting like parts.

This invention relates to picker checks. In order that the principle of the invention may be readily understood, I have disclosed a single embodiment thereof in the accompanying drawing, wherein- Figure 1 is a front elevation of a loom having my invention applied thereto;

Fig. 2 is a plan view upon an enlarged scale of one of the picker check devices of the loom; i

Fig. 3 is a side elevation thereof;

i Fig. 4 is a view partially in vertical sec- .tion and partially in elevation, looking toward the left in Figs. 2 and 3;

Fig. 5 is a plan viewof a modified form of the invention also upon, an enlarged scale;

Fig. 6 is a side elevation of the construction shown in Fig. 5; and

Fig. 7 is an end elevation of the construction shown in Figs. 5 and 6.

h i It has heretofore been proposedto provide a frictionally acting picker check for the picker stick of a loom, such check comprising two members respectively mounted upon the lay and the picker stick and so positioned as frictionally to engage each other. Such picker check in actual operation has been found to be very effective and my invention is an improvement thereon.

An important object. of my invention is to provide a picker check constructed and arranged to hold the picker accurately in its outward position in contact with the point of the shuttle, so that upon the inward throw of the picker stick the shuttle is at first thrown by the picker stick without lost motion. A further object of the invention is to provide a simple construction by which such result may be accomplished. Other objects of the invention will be fully set forth hereinafter.

My improved picker check may be ap plied to any type of loom having picker sticks. I have shown a conventional loom having a frame 1, a lay 2 and picker sticks 3.

The picker sticks are adapted to be rocked in any suitable manner, and to that end are herein represented as provided with shoes 4. The picker check herein shown is composed of a plurality of parts, at least one of which is mounted upon the lay and at least one of which is mounted up on the picker stick, though within the scope of my invention I may omit the part mounted upon the picker stick, as hereinafter set forth. I have herein represented each end of the lay and each picker stick as provided with cooperating parts together constituting complete picker checks.

Adjacent each outer end of the lay I have positioned a member 5 having a substantially upright portion 6 secured at 7 to the top or other suitable part of the lay. The said member 5 may be made of metal or of some other suitable material, such, for example, as wood. The material should, however, be such as to afford sufficient flexure and to impart suflicient pressure to the picker stick to effect the checking thereof. Each member 5 is provided with a part 8 so positioned as to overhang the picker stick in its sweep. The lay is longitudinally slotted in the usual manner as indicated at 9 to permit the sweep of the picker sticks, and preferably the member 5 is bifurcated, as indicated at 10, for the same purpose. The overhanging portion 8 of the check is arcuate or inclined, and the shape thereof is preferably such that the top of the picker stick contacts therewith only adjacent to and at the outward limit of the stroke of such stick, thereby effectively checking the same. The path of movement of the top of the picker stick is indicated by the dotted line 11 in Fig. 3. Within the scope of my invention, the member 5 may directly engage with the top of the picker stick 3 to impart checking movement thereto, but preferably I provide the top of said wood or other suitable material, is preferably curved, as indicated at 16 to afford suitable resiliency and is provided with an extension 17 of inclined or arcuate form to engage with the top of the picker stick 3 or with the cap 12 thereon at and adjacent to the outward limit only of the stroke of the picker stick, as described with respect to Figs. 2 and 3.

- The construction and arrangement of parts are such as to impart-a movement of downward pressure to the picker sticks 3, thus tending to maintain the shoes or other lower portions of the picker sticks in proper relation totheir supports. The construction is such asto bring the picker sticks to a position of absolute rest at a predetermined point. The members 8 and 17 of the picker check are upwardly flexed in the outward movement of the picker sticks 3 so as effectively to check the same.

I am not limited to the form or construction of the members 5 and 14k of the picker check, inasmuch as I am the first so ,far as I am aware to mount a member of the picker check so that it engages the top or end of the picker stick, or a cap or shoe thereon, so as properly to check the same. Obviously this result may be effected by various forms and arrangements of parts within the scope of my invention.

The picker check of my invention in its preferred and illustrated embodiment has a constant or substantially unchanged position, the check being merely slightly flexed in the action of the loom, the normal position of the check being substantially parallel with the path of the end of the picker stick.

The top of the picker stick or the cap thereon initially engages the check with a wiping action, as will be evident from an inspection of Figs. 1, 3 and 6 of the drawing. The check at all times is, in its illustrated embodiment, substantially concentric, or rather is but slightly non-concentric to the cent-er of motion of the picker stick. By such construction I obtain a more effective checking of the stick and one involving less jar of the parts. Moreover, the checking action is wholly frictional.

lVhile I have shown the member .5 as mounted upon the top of the lay and the member 1% as mounted upon the end thereof,

it is to be understood that either or both of said members may be mounted upon one side or the other of the lay, in which case they would be provided with an upright portion and a portion offset therefrom, so as to be central of and to overhang the top of the lay. An important feature of my invention is so to position the member upon the lay that it will engage with the top of the picker stick or with the cap thereon to check the picker, stick.

Having thus described one illustrative embodiment of my invention, I desire it to be understood that although specific terms are employed, they are usedin ageneric and descriptive sense and not for purposes of limitation, the scope of the invention being setforth in the following claims.

Claims: I

1. In a loom, a lay, a picker stick and a frictionally acting picker check therefor comprising a member operatively positioned to engage the top of the picker stick in the outward throw thereof, said check being normally positioned in substantial parallelism with the path of the topof the picker stick and adapted to belieXed by said picker stick in the outward movement thereof.

2. In a loom, a lay, a picker stick and a frictionally acting picker check therefor comprising a member mounted upon the lay and positioned operativel-y'to engage the top of the picker stick in the outward throw thereof, said check normally having a position slightly noneconcentric to the center of motion of the picker stick.

3. In a loom, a lay,.a picker stick and a frictionally acting check therefor-comprising a member operatively positioned to engage the top of the picker stick in the outward throw thereof, said check being so normally positioned when the picker stick is out of engagement therewith, that the stick initially-engages the. said check with. a wiping action. y r

l. In a loom, a lay, a picker stick and a frictionally acting picker. check therefor comprising a member positioned operatively to engage the top ofthe picker stickin the outward throw thereof, saidmember having substantially the same fixed position. both, when the picker stick .is in engagement therewith, and when it is out of-engagement therewith. r i

5. In a loom, alay, a picker stick and a frictionally acting picker. check therefor,

comprising a cap piece mounted upon the top of the picker stick, and a member mounted upon the lay and positioned to engage said cap piece during the outward throw of the stick. i j

6. In a loom, a lay,.a-picker stick and a frictionally acting picker check therefor comprising a cap piece mounted upon. the top of the picker: stickand amember mount ed upon the lay to overhang the top of the picker stick and positioned to engage said cap piece in the outward throw of said picker stick. a.

7. In a loom, a lay, a picker stick andfa frictionally acting picker check therefor comprising a cap piece mounted upon the 8. In a 100111, a lay, a picker stick and a frictionally acting picker check therefor comprising a cap piece mounted upon the top of the picker stick and a flexible member mounted upon the lay and having an inclined portion overhanging the top of the picker stick and positioned to contact with said cap at and adjacent to the end of the outward throw of the picker stick.

9. In a loom, a lay, a picker stick and a frictionally acting picker check therefor comprising a member having a bifurcated upright portion for the passage of the picker stick and an inclined flexible portion extending therefrom and positioned operatively to engage the top of the picker stick during the outward throw thereof.

10. I11 a loom, a lay, a picker stick and a frictionally acting picker check therefor comprising a member mounted upon the lay and positioned operatively to engage the top of the picker stick in the outward throw thereof, said member having substantially the same fixed position both when the picker stick is in engagement therewith, and when it is out of engagement therewith.

11. In a loom, a lay, a picker stick and a frictionally acting picker check therefor comprising a member 8 having substantially the same position at all times with its under face so located as to insure a wholly wiping action between it and the top of the picker stick.

12. In a loom, a lay, a picker stick and a picker check therefor positioned operatively to contact with the top of the picker stick in the outward throw thereof, the said check having substantially the same position both when the picker stick is in engagement therewith and when it is out of engagement therewith, and being so positioned that the contact between the check and the stick is wholly frictional.

In testimony whereof, I have signed my name to this specification.

JAMES K. LANNING.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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