US938785A - Shuttle-picking mechanism for looms. - Google Patents

Description

I I; E. PALMER. I SHUTTLE PIGKING MECHANISM FOR LOOMS. APPLICATION FILED $22121, 1908.

3 SHEETS-SHEBT l.

' I fsaatEPabner, WW w %y L H. PALMER; SHUTTLE PIOKING MECHANISM FOR LOOMS.

APPLIOATIQN FILED BFBPT. 21, 1908.-

Patentad Nov. 2, 1909. I

a snnnTs -snnn'r 2.

Inc; 11101": Isaac Ea alhzel",

I. E. PALMER.

' SHUTTLE PIGKING MECHANISM FOR LooM's.

APPLICATION FILED SEPT.21,1908.

Patented Nov.2, 1909.

3 SHEETS-SHEET 3.

\ UNIT D. ST

To all' wkomf'it'may:cpncem: t k'nown that. I, Isaac/E. cltizen of theUnited Statesiand a resident of MlddltOWIl,.i11 the, county of Middlesex 5 and State of Connecticut, have invented an Improvement in Shuttle-Picking Mechanism for Looms, of whichtthe following descript-ion, n connection with the accompanymg drawin s, "is a specification, like numerals onlthe" rawings representing like parts. This inventionrelates to shuttle picking n'iecha'nism for: looms, and it has among its ob ect's to 1 impart "an" even, smooth, shuttle actuating movement to the icker stick; to supplement "the action of e :picker cam upon the" stick sq-e910 maintain the'picker stick in contact with theshuttle durin the shuttle actuatingmoveme'nt of the p1cker stick; and to impartan' initial, elastic, gradually accelerated ment tosaid'st ick.

In order that the principles of the invene tion may be readily n fderstood, I have dis-' closed' =ce'rtain types orfitnbodiments of the mventlonf in. the accompanying drawings,--'

wherein+ Figure I11 j fa sided elevation of a "picker stickzand a .porti ngor the operating mechaning throw of theqpickcr stick. In the re-;

maining figures of "the drawings, for con- VGIIIGIICG Of illustration and to save space,

fied form 0 my invention; Fig. 5 isa horir;

zontal section of-the' construction shown in' 5""4 upon the dotted line 3' 5 -5- thereof;- '6-- 7- and 8:.are side elevations of further of furtherforms of my invention; and Fig;

- "12" is a 1- side elevation-" representing a form of myi inventio'n in its re ation to the usual pickerg; cam.

Diflibulty has been experienced heretofore I Specification of'Letters Patent. Applicatio'n filed se tem erai; 190a "seriai'no.

PALMER, a;

shuttle actuating move-g ism itherefor representing the position of the parts prior tothe commencement of the the actual construction, of parts is repre forms of my iinven-tion; Fig. 9 is; .ahoifizon'a, 50 tal,:fseetional'view upon .the dotted l ne-2+9,

of Fig-28'; -.Figs.'"10and 11; are s1de elevations s jaa?ENT OFFICE.

" "'isanc E. PALMER, or MIDDLETOWN, CONNECTICUT.

sHUTrLE-PIQKING MECHANISM roe Looms.

' atented Nov. 2, 1909.

in rendering smooth-and even theactio'n' ofthe picker cam upon-the picker stick. I In constructions heretofore employed so far as I am aware, the picker stick has been ab? ruptly moved from a position of rest to its maxlmum speed, with the result that the shuttle is thrown by a sharp jerk, and does not. therefore make a satisfactory flight. In

3 order properly to throw the shuttle, and more particularly in looms exceeding a yard or more in width, not only should the picker stick be kept incontact with the shuttle during the shuttle actuating movement of the stick so asto follow up the action of the cam upon the stick, but the picker stick should start from a position of rest by an initial, yielding movement which is gradually accelerated until the movement of the picker cam acts upon the picker stick itself. By imparting an elastic throw to the shuttle, not only are jars and shocks absorbed,

thereby rendering the action of the picker.

stick smooth and even, but the action of the "pickercam is supplemented, and in the event that the cam be of defective contour the imperfect throw ordinarily resulting therefrom is largely if not Wholly overcome. The.

Wider the loom to which my invention isapplied, the more beneficial are obtained therefrom.

Referring more particularly to the form ofthe invention disclosed in. Figs. 1 to 3 inclusive, the picker stick, which may be of usual construction,=is represented at 1, it beingpreferably pivotally mounted in the usua manner not herein necessary to refer to. The picker strap 2 or other suitable device is operatively connected in any desired manner to the picker cam or other operating the results means." For example, in Fig. 12, the strap.

2 is connected to an arm 3 fast upon a roc shaft 4 from which extends a picker roll 5 I contacting'wi'th the periphery of the p1ckercam 6 fast upqn'the cam shaft 7, to which motion is imparted 1n the usual manner.

The said picker cam 6 or other actuator and: the strap 2 or 1 other suit-able connecting de-'. vice constitutes themam'shuttle operating:

means p i ,In orflfili accomplish the results previously'refeifrecl to and "to overcome thedefects mentioned, I inter'pose between the pickerstick and the" picker cam a' resll ent or yielding member which preferably s preliminarily engaged by the picker strap 2.

It is apparent that this feature of my inventon may be variously embodied. In said 'Figs. 1 to 3, I have represented a coiled .properly with respect to the spring 8. In

said figures, the spring 8' is shown as extending from the outer face of the picker stick 1.

Viewing Fig. 1, prior to the picker actuating movement of the picker cam the arts assumethe position represented in Fig. 1, wherein the springfi'is in a normal or nondistorted condition. When, however, the picker cam 6 is operated,-it draws upon the strap 2 with the result that the spring 8 is distended. The tension of said spring may be such that the result is to distend the said spring until it contacts with the .face of the picker stick 1, or it may be such as to prevent such contact. The described distention of said spring effect-s an initial yielding movement ofthe picker stick which moves gradually from its position of restnntil the spring is ffllly distended, whereupon. the full movement of the picker strap is conveyed to said picker stick 1, which thereupon completes its movement. It will be apparent that the tendency of the spring 8 is to ieturn to its normalposition. If, therefore, the contour of the picker cam 6 be imperfect, that is, if the periphery of the cam have nicks or depressions, the picker stick is maintained in contact with the cam, owing to the straightening of the spring into the position shown in Fig. 3. It means werenot provided for accomplishing this result, the referred to imperfection in the cam would result in the separation of the picker would ,not be properly thrown. Thespring 8 absorbs substantially all jar, so that a smooth and even pick results. It will be apparent that by the employment of a spring the throw of the picker stick render more snappy and that the resilienc of the wood of the picker stick need not e relied upon as heretofore. 1 r

If desired, the spring 8=may be positioned .upon the inner face of the picker stick 2.

Such construction is-represented in Fig. 4:

' wherein the s ring 11 is mounted upon hooks 12- -12 exten ing from the inner face of the stick. Any suitable means may be provided to permit the strap 2 to act first i on the sprin 11. This may be accomplis ed by provi ing a supplemental strap 1?, (see Fig. 5) which is passed about the spr1ng 11 and is connected to, the main strap 2 in such manner as to permit the described distention of said springll and the initial yieldingmovement of the picker stickprior to the engagement of the strap 2 with the picker stick 1.

It is apparent that various forms of springs may be employed in the practice of my invention and that they may be connected in any desired manner with the picker stick. In Fig. 6, for instance, I have shown a construction wherein a plate or leaf spring 14 is connected by strips 15-15 or otherwise to the inner face of the icker stick, a supplemental strap, such as s own in Fig. 5, be- .ing preferably employed to permit distention of the spring prior to the engagement .of the main strap with the picker stick. Ii

Fig. 7, a similar construction of parts is represented, but the plate or leaf spring 16 is connected to the outer face of the picker stick in the manner described with reference to Figs. 1 to 3 inclusive.

If desired, springs of any suitable construction, whether that shown in Fig. 1 or elsewhere maybe connected to both the inner and outer faces of the icker stick, in order to insure the effective ollowing u of the shuttle by the icker stick and the c ective yielding initia movement of the picker. Such construction is shown in Fig. 8, wherein coiled sprin 17, 18 are respectively connected to the inner andouter faces of the picker 1. A supplemental strap 19 see Fig. 9) tightly encircles said springs an is'connected in any suitable manner to the main strap If desired, a substantially rigid bar or member, such as shown at 20 in Fig. 10, may be pivotally connected as shown at 21' to the outer face of the picker stick and may engage a coiled or other spring 22 suitably mounted upon a pin 23 carried by the picker 1. Inthe operation of the parts, the sprin 22 is compressed by the initial movement 0 the strap 2 to effect the results already described. a

If desired, a rigid bar or member may be connected to the inner face of the picker stick. Such construction is shown in Fig. 11, wherein the substantially rigid bar is pivotally mounted at 25 upon the picker stick and is adapted in the initial movement of the strap 2 to compress the coiled or other sprin 26 suitably mounted upon a spring 27 extending from the picker 1. v

Having thus described one type or e I bodiment of my invention, I desire it to be understood that although specific terms are employed, they are used in a generic and descriptive sense and not for pur osesof limitation, the scope of the invention being set forth in the following claims.

Claims. I 1. Shuttle picking mechanism comprising a picker stick, a picker earn, a lug strap connection between the cam and stick, and a spring operatively connected w th tie lug strap and picker stick and positioned norlug strap prior iso strap upon the picker stick, whereby an initially elastic shuttle actuating movement is imparted to the picker stick.

f '2. Shuttle'picking mechanism comprising a picker stick, a picker actuator, a strap or band connection between said stick and actuator, and a spring operatively'connected with the strap or band and stick, and relatively positioned to yield at the initial picking movement of the strap or band, and thereby re impart an initially elastic movement to the picker stick, followed and supplemented bythe full eflect of the strap or band upon the stick.

' band connection between said stick and actuator, and a spring directly connected to the .picker stick and operatively connected to .saidstrap or band, and acting to yield to the initia picking movement'of the strap or band, thereby to impart an initially elastic movement to the icker stick.

4. Shuttle picking mechanism comprising a picker stick, a spring arranged in substantial parallelism with the picker stick and having its end parts connected thereto, a picker strap engaging said spring and a cam operativelyconnected to said strap to operate the picker stick, the said spring thus pro- 3 vidmg means for normally imparting to the picker stick an initial elastic movement and for normally supplementing the action of the said cam. Y

5. Shuttle picking mechanism comprising 3 a picker stick, a pickei' actuator, a connection between said stick and actuator, said picker actuator and connection constituting the, main shuttle actuating 'means, and a spring operatively connected with the stick 40 and with the said main shuttle operatin means, said spring being relatively positioned to yield 'atthe initial picking movement of the said connection prior to the full stick, whereby an initially elastic shuttle actualltiing movement is imparted to the picker stic In testimony whereof, I have signed my 'efi'ect of the said connection upon the picker 45 name to this specification, in the presence of 50 two subscribing witnesses.

ISAAC E. PALMER. I

Witnesses:

- F. E. FOWLER, F. N. CooKn.

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