US1087082A - Picker mechanism for looms. - Google Patents

Description

:0. H. CLARK & R. J. MORTON.

Patented Feb. 10, 1914.

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rr sTA'rns arr .DAVID H. CLARK AND RUFUS J'. MORTON, OF GREENSBORO, KORTH CAROLINA; SAID CLARK ASSIGNOE T SAID MORTON.

PICKEB MECHANISM FOR LOOMS.

Specification of Letters Patent.

Patented Feb. 10, 1914.

Application filed April 21, 1913. Serial No. 7e2,597.

' RUFUS J. Monroiv, citizens of the United States, residing at Greensboro, in the county of Guilford, State of North Carolina, have invented a new and useful Picker Mecha- 'nism for Looms, of which the following is a specification, The present, invention relates to improve ments in picker mechanlsms for looms, one

object of the invention being to provide a picker mechanism which will impart a straight throw orimpulse to the shuttle, and to so construct the mechanism that the shuttle is received by a spring cushion at the end of its movement, the present meclr anism dispensing with the ordinary picker stick and simplifying the structure of the same, the picker mechanism being bodily carried in'the lay beam of the loom. D

A further object of the present invention is the provision of a novel form. of picker mechanism in which a single spring is connected to two picker slides, there being an operatingand releasing mechanism, whereby the propelling slide is locked and due to the pressure exerted upon the opposite slide during the release of the propelling slide,

receives su'llicient force, from the spring to propel the same and the shuttle, the receiving slide which when receiving the shuttle preventing any undue jar.

lVith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the com binatlon and arrangement of parts and in the details-of construction hereinaiter described and claimed, it being understood. thatchangcs in the precise embodiment o't the invention herein disclosed can he made left and lhe placing of the picker slide at the rigrht under tension previous to the release thereof: Fig. 3 is a top plan view of the lay beam with the upper plate removed at the right hand side with the picker slide in the position as shown in Fig. 2.- Fig. 4 is a section taken on line 4-4 of Fig. 1.

Referring to the drawings, the laybeam, which may be taken indicative of the usual form of lay beam used with looms, is composed of .two longitudinalstrips or plates l1, which are held in spacedrelation to each other by means of the blocks 2 at the respective ends thereof, to provide the longitudinal mechanism receiving space 3 therebetween.

The present beam is designed to be whatis known as the legless type and to slide upon the rods 4- in its necessary movementwithin the loom.

Fitting upon the upper face of the lay beam and concealing a greater portion of the space 3, is a sheet 5, preferably of metal and which constitutes the surface upon which the shuttle is moved longitudinally of the lay beam, said sheet 5 at opposite ends being provided with the longitudinal slots 6 6, throughwhich are adapted to project the two picker slides 16, the detail construction and operation of which will be set forth. later on. 1 7

Connected across the space 3 at the under side or the plates 11, and adjacent the center thereof, as clearly shown in Fig. 1, are two straps or plates 7, which hold the operating bar 8 properly positioned within In order to impart the desired reciprocatory movement to the operating bar 8, a lug 9 is connected thereto and depends from the under side thereof between the straps or plates 7, and has operably connected thereto, an arm 10, which may be talten indicative of a portion of the loom and is the means whereby the picker slides 16 are properly operated due to the reciprocation of the operating bar 8,

The opposite ends lllot the operating bar 8 are in a plane above the intermediate recessed portion tltioreof formed by the two means for limiting the respective inward movements of the operating bar 8, and, as will also presentlyappear, a means for releasing the pickerslides 16, while the extreme ends 12 thereof are disposed to disengage and he engaged by the lower projectin g ends 18 or"- the respective picker slides 16. In order to provide for a straight line shouldered portions 13, which constitute ain li n movement in both of the picker slides 16, the oppositely disposed recessed portions 14 are formed in the plates 1-1 at each end thereof and receive the guiding member 15 5 of each picker slide 16, the upper end of each picker slide being provided with the buffers 17 for engagement with the respec tive ends of the shuttle S, as clearly shown in Fig. 1.

' The inner end of each guiding member is provided with the two spaced apertured lugs 19, between which is adapted to fit the which forms a resilient operating connection between the two picker slides and a means whereby the propelling slide is given the proper impulse to throw the shuttle S to the receiving slide which is thus cushioned, the slides alternately being the propelling and receiving slides during the loom.

operat on.

The flexing member 22 is provided with the lower shouldered portion 25, and the inclined lower face 26, so that when the members are in the position as shown in Fig. 2, the operating bar 8 being moved from right to left so that the slide 16 at the left is being moved to place tension upo the spring 24, the shoulder 25 of the iiiing member 22 of the slide at the right is placed in engagement with the holding pin 27. Thus the shoulder 13 of the bar 8 at the right will gradually ride upon the cam face 26 of the flexing member at the right and elevate the shoulder 25 and release it from.

the pin 27, so that by the time the slide at the right has been moved to its full left position, and the spring 24 has been placed under its greatest tension,- the slide 16 at the right thus relieved, will be propelled suddenly and assume its farther inmost position and give the necessary impulse to the shuttle to throw the same across the lay 5 5 beam to be cushioned by the slide 16 at the left which has been placed in such a position that its shoulder 25 of its flexing mem her is slightly beyond its pin 27 and thus is in a loose condition so that when the shut- 6O tle strikes the same, the spring 24 will act as a cushion and relieve the strain thereupon.'

It will be noted that when the parts are in intermediate position, that is after the shuttle hasv been received by one slide and 2 single spring 24: oper ating to per properly cushioned, that both pins 2 in spaced relation to the respective shoulders 25 of both flexing members 22, and therefore the slide 16 which has just propelled the shuttle, has a slight movement away from the center of the beam before the shoulder 25, all as clearly illustrated. at the right i in Fig. 1., has engaged the pin 2'2", the spring 24 being placed under initial tension during the movement of the bar 8 as for instance 5 to the left as viewed in 1 until the slide 16 at the left has assumed. *li i at the left as shown in Fig. 2, at i c the spring is being placed under tension an. tension continuing until the shoulder 13 leases the shoulder 25 as previously scribed. J i

By mounting the'guiding memberg'; shown, a straight line movement is 'mpa ed to the slides 16, so that the shut! 2c bufiers 17 are always in the 6 while with the flexing members structed as shown, in combination W1 A operating bar 8, the respective picker are set, locked and released automatically to na l alternately operate as propelling mean" and also as receiving and" cushioning me functions, so that the least perceptible is caused to the picker slides when receiving, the propelled shuttle.

What is claimed is:

1. A picker mechanism for looms, in ing a lay beam, two picker slides snout-it for limited sliding movement at the tive ends thereof, a flexing member carried. by each picker slide within the lay beam, a resilient connection between both flexing members of the slides, an operating bar mounted for reciprocation within the lay beam, and coiiperative means carried by each end of the operating bar and the picker slide and flexing member, whereby during the re ciprocation of the operating bar, and dur' ing the setting of one slide, the resilient con- 3; nection is placed under tension and the op posite slide is released.

2. A picker mechanism for looms, including a lay beam, two picker slides mounted for limited sliding movement in the respective ends thereof, a flexing member connected to each slide within the lay beam, a spring connecting both flexing members within the lay beam, an operating bar mounted for reciprocation within the lay beam, and cotiperative means carried by each end of the operating bar and the picker slide and flexing member, whereby during the reciprocation'of the operating bar, and

during the setting of one slide, the spring is placed under tension and the opposite slide 1 is released,

3. A picker mechanism for looms, including a lay beam provided with a longitudinal channel in the under surface thereof, two

picker slides one at each end of the lay beam, each disposed for limited longitudinal movement within the channel thereof, two flexing member", one pivoted to each picker slide Wit-him the channel, each of said flexing members being provided with a locking shoulder and fl cam face, e spring c0nnecting the adjacent ends 01 each flexing memher, an operating har mounted, Within the channel of the lay beam for reciprocatory movement, and means carried upon each end of the locking hm: for en agexnent with its respective picket slide and flexing member, whereby (luring thesetting of one picker slide, the spring is the opposite sllcl' movement of locked slide t permitting the o to receive and cue.

In testimony as our own, We natures in the presen DJ? e e'emje J. lliomore.

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