US1766757A - Shuttle check - Google Patents

Description

`'une 24, 1930.

w.` E. LUNDGREN SHUTTLE CHECK' Filed Jan. 1S., 1929 NM Sm Patented .lune 24? 1930 Mean? rtf-ic WILLIAMS E. LUNDGB-EN, O WORCESTER; MASSACHUSETTS, ASSIGIQOR T0 CROME'TON a KNOWLES kLOOM W'ORKS, GIE' MASSACHUSETTS i VGRCESTER, MASSACHUSETTS, .A COREORATION OF snorricnonncx Application lefl January 15, 1929. Serial No. 332,705.

This linvention relates to shuttle checks for looms and it is the-general object of the invention to provide a simple check wherein the checking action isk caused by the shuttle itself. i

` In weft replenishing looms it is important to have the shuttles properly placed with respect to the magazines and weft detectors so thatthese mechanisms can always cooperate properly with the bobbin. Itis an important object of my present invention to provide a shuttle check `which is movable with` respect to a fixed pivot and divided into two arms,l one the shuttle engaging arm and the other the binder or pressure exerting arm, these arms being variable as to length to effecta range of pressureswhich may be necessary when the speed ofy the loom is increased or decreased.

It is a further object of my present invention to provide a shuttle check havingV 'an arm to engage` the` rounded portion 0f the shuttle andtovprovide said check with a mounting so that; said arm maybe given a greater or lesser movementv depending upon the amount of -the rounded portion ofthe shuttle which it engages.

With these and other objects in Vview which will appear as the description pro- 'ceeds7 my 'invention resides in the combination and arrangement of parts hereinafter described and'set forth inthe claims.

' In the accompanying drawings, wherein a convenient embodiment ofmy invention is Vset forth, l

Fig. 1 is a top plan View of a lay end havf ing my invention applied thereto,

Fig. 2 isa front elevation of a portion of a structure shown in Fig. 1 taken in the direction of arrow 2, of the latter ligure,` and Fig. 3 is an'enlarged vertical section on line 33 of Fig. 1; Y p.

Referring to Figlpl have indicated the lay 10 having abox back 11 and abinder 12 supported by a stud lupstanding from boxV at one end. Thestructure thus far described is of the usualV form.

ncarrying my invention intoeifect I' provide the boxvplate 14 with `a forwardly extending horn 2O into which is threaded as at`21 the lower end of a stud 22. The latter extends through a carrier 23, upward mo,- tion of which is restrained by head 2st `of the stud. -The carrier is conned between the head and the horn 20 but is free to rotate about lthe stud., f Y

The shuttle check includes in its construction a single strip of vresilient metal such as tempered steel indicated generally at 30 having the right vhand end thereof as viewed in Fig. 1 curved ,as Yat 31 and provided with ,leather facing 32. The facing is designed to. engage the rounded edge C of the shuttle S; .The shuttle check is provided with a rear substantially straight limb 33 the left hand end of which asr viewed in Fig. 1 is bent'towardthe binder to engage the latter at a rounded portion or nose` 34. From the nose the strip of material is curved for-4 The carrier 23 is provided with a recess 401 which receives the limb 33 while the `forward lportion of said carrier is provided-with a second recess 41 in which lies'lthe forward limb;v i i As shownin Fig. 2 the forward portion of the check is provided with'a s101542 through which extends va pair of screws. 13. V'lhese screws extend into vthe Vcarrier and' clamp lthe forward portion of the checktightly to the carrier. The rear limb 33 is free to. move in the slot 40, not being clamped directly vto `the carrier but being held in close relation with the latter partly by the bolt `37. g

The stud 22 is normally in fixed Vposition with respect to the box plate and therefore the laylof the loomis provided with a single Y Cil Lif)

With respect to the shuttle when the latter is properly boxed. As the shuttle enters the box the curved portion C will engage the leather facing 32 and rock the check in a clock-Wise direction as viewed-in Fig. l around the stud 22, thus pressing the rounded nose 3st against the binder 12. The effect of this action is to increase the pressure of the binder against the shuttle and thereby check movement of the latter in the box to avoid rebounding.

It it is desired to vary the checking effect on the shuttle the screws 43 may be loosened and the cheek moved either to the right-or to the left, as desired, with respect to the carrier 23, the screivs el?) being tightened When the check is in proper position. By varying the position of the nut-s 39 With respect to the screiv 37 it will be possible to change the relation betwen the substantially parallel limbs 33 and 35 to effect a corresponding change between the shuttle and binder engaging arms. In this Way I am able to secure Va. variety of adjustments and also to vary the time of application of the maximum torce exerted by the check when compared With the travel of theshuttle into the box toward the picker. y

lVhen the shuttle cheek is moved to the left of the position shown in Fig. l the leather facing 32 will be engaged at an earlier time in the flight of the shuttle so that the nose 3ft Will be moved against the binder earlier in the pick. rIhis movement of the check will of courseapply the pressure exert-ed by the nose 34 at a point more distant from the pivot ot the binder so as to increase the leverage of the latter. If in the new position assumed the' leverage 'should be found correct but the time ot action too late the screw 37 may be changed so as to move the leather rfaced end of the check rearwardly,` this adjustment being permissible due to the tact that the material of which the binder is formed is resilient and that the sereiv 37 acts to torce the Aliinb 33 vaway from limb 35.

From the foregoing it will be seen that I have provided a shuttle cheek formed essentially of a. single strip of resilient material which is held to a Carrier movable around an axis preferably fixed though not necessarily so with respect to the box. It Will further be seen that the cheek may be moved either to the right or to the left With regard to the carrier by manipulation of the screws 43. It will also be seen that the relation ot the shuttle engaging arm with respect to the binder engaging nose may be varied by means of the serev 37. o

Having thus described my invention it Will be seen that changes and modifications may be made therein by those skilled in the art Without departing from the spirit and scope of the invention and I do not Wish to be limited to the details herein disclosed, but what I claim is:

l. In a shuttle cheek for a loom having a lay with a binder to engage a shuttle, means defining a pivot, an inherently resilient shuttle check extending on opposite sides of the pivot and having one arm to engage the rounded end of the shuttle and the other arm to engage the binder, means to hold the shuttle check,y said means having connection with the aforesaid pivot, and a device to vary the amount ot the shuttle check which extends to one side of the pivot. l

2. In a shin-tlev check for a loom having a lay with a binder to engage a shuttle with a rounded end, means defining a pivot., a shuttle check formed ot inherently resilient material and having an arm on one side of the pivot to engage the shuttle and another arm' on the other side of the pivot to engage the binder, a 'carrier' for said cheek movable about and supported by the pivot and secured to the cheek, and means to vary the amount of the shuttle engaging arm which extends to one side of the pivot. Y

In a shuttle cheek for a loom having a. lay with a binder to engage a shuttle means defining a pivot, a shuttle' cheek formed ot inherently resilient material having a shuttle engaging arm extending to one side of the pivot and a. binder engaging arm extending to the other side ofthe pivot, a carrier supported by and movable angularly by the aforesaidpivot, and means to hold the shuttle cheek to the carrier in any one et a ipjlurality of positions tovary the length of a shuttleengagiug arm which extends to one side of the pivot. Y f

4l. In a shuttle check for a'loom hai'fin'g a lay with a binder to engage a shuttle7 means defining a pivot, a shuttle cheek formed o'l inherently resilient material and having a shuttle engaging arm extending to-one side of the pivot and a binder engaging arm extending to the other side of thep'ivot, a carrier supported by and singularly movable with respect to the pivot. said shuttle check having a slot therein, and a screw extending through the slot and into the carrier to hold said shuttle check in anyone of a plurality of positions ivith respect to the pivot to vary the length of the v'shuttle engaging arm Which extends to oneside'ot` the pivot. I v I i 5. a shuttle' check for a loom having a lay With a binder to engage a shuttle, means defining a pivot, a shuttle check formed of inherently resilient material and having a shuttle engaging arm on one side of the ,1 pivot, said resilient material being bent back on itself to provide tivo substantially parallel limbs defining a binder' engaging arm` a carrier operatively related to. both the limbs and secured to one of them, said carrier being supported by and movable angucarrier operatively related to both the limbs and secured to one of them1 said carrier being supported by and movable angularly with respect to the pivot, said carrier being connected to one limb only of the binderV engaging arm.

7. In a shuttle check for a loom having a lay with a binder to engage a shuttle, means defining a pivot, a shuttle check formed of inherently resilient material and having Va shuttle engaging arm on one side of the pivot and a binder engaging arm bent back on itself to provide two substantially parallel limbs on the other side of the pivot, a carrier Vsupported by and angularly movable with respect to the pivot, said shuttle check having a slot therein, and a screw extending through the slot and into the carrier to hold said shuttle check in any one of a plurality of positions with respect to the pivot to vary the length of the binder engaging arm which.

extends to one side of the pivot, said carrier being secured to the forward limb 0f the binder engaging arm and having guiding relation with respect to the rear limb.

8. In a shuttle check for a loom having a lay with a binder to engage a shuttle, means defining a pivot, a shuttle check formed of a length of resilient material bent on itself, said material having a shuttle engagingarm located to one side of the pivot and `said material having a portion thereof bent back on itself to define two substantially parallel limbs which define a resilient binder vengaging arm on the `other side of the pivot, a carrier located between the limbs and supported by and movable angularly with respect to the pivot, and means to hold one of the limbs to the carrier. 4

9. In a shuttle cheek for a loom having a lay with a binder to engage a shuttle, means defining a pivot, a shuttle cheek formed of a length of resilient material bent on itself, said material having a shuttle engaging arm located to one side of the pivot and said material having a portion thereof bent back on itself to define two substantially parallel limbs which define a resilient binder engaging arm on the other side of the pivot, a carrier located between the limbs and supported by and movable angularlyv with respect to the pivot, means to hold one of the limbs to the carrier, and means interposed between the limbs to draw the latter together at a point removed from the pivot.

10. Ina shuttlecheck for a loom having a llay with a binder to :engage a shuttle, means defining a pivot, a shuttle check having a pair of substantially parallel arms which are formedof resilient-material and extend on kboth sidesof the pivot,' said limbs being connected togetheron one side of the pivot to define a binder engagingfarm, a carrier for the limbs pivotally supported by the aforesaid pivot, and' a shuttle engaging arm formed as an extension from one ofthe limbs. Y Y j f 11. In a shuttle cheek for a loom having a lay with a binder to engage a shuttle, means defining a pivot, a shuttle check having a pair of substantially parallel arms which are formed of resilient material and extend on both sides of the pivot, said limbs being connected together on one side of the pivot to define a binder engagingarm, a carrier for the limbs pivotally supported by the aforesaid pivot, a shuttle engaging arm formed as an extension from one of the limbs, and means connecting the limbs on that side of the pivot adjacent the shuttle engaging arm to vary thedistanee between said limbs.

l2. In a shuttle cheek for a loom having a lay with a binder to engage a shuttle, means defining a pivot, a shuttle check formed 'of a strip of inherently resilient material, said cheek having a shuttle engaging arm on one sideof the oivot and having two substan-` tially parallel limbs which extend on both sides of the pivot, the arms being connected together onthe side of the pivot opposite the shuttle engaging arm to define a binder engaging arm, and screw means located between the limbs on that side of the pivot opposite the binder engaging arm to vary the distance between said limbs.

13. In a shuttle cheek for. a loom having a lay with a binder to engage a shuttle, means defining a pivot, a shuttle check formed of a strip of inherently resilient material, a carrier movable angularly about the pivot and having substantially horizontal slots on opposite sides thereof to receive the shuttle cheek, the latter having a shuttle engaging arm located on one side of the pivot and a binder engaging arm on the.

other side of the pivot, and means to hold said cheek in fixed relationl with respect to the carrier.

lll. In a shuttle check for a loom having VaV lay with a binder to engage a shuttle,

means defining a pivot, a shuttle check formed of a strip of inherently resilient material having a shuttle engaging arm on one side of the pivot, a pair of substantially parallel limbs extending on both sides of the pivot, those portions of the limbs extending on that side of the pivot opposite the shuttle engaging arm being connected together to form a binder engaging arm, a carrier angulai'ly movable about the pvot, means clelining a connection between the parallel limbs und the carrier to hold the check to the carrier in any one of .a plurality of positions to vary the length of the binder engaging arm, and means interposed between the parallel limbs on that side of the pivot adjacent the shuttle engaging arm to vary the position of the latter with respect to the binder engaging arm. l

In testimony whereof I have hereunto affixed my signature.

WILLIAM E. LUNDeRinI.l

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