US2028732A - Shuttle check - Google Patents

Description

Jam 21, 1936. 1,11 BROWN 2,028,732

J I sguTTLE CHECK Filed Sept. 17, 1955 /6 INVENTOR.

V CAEL 0. Bee w/v.

ATTORNEY.

patented Jan. 21, 1933 U ITED STATES PATENT ()FFIQE SHUTTLE CHECK poration of Maine Application September 17, 1935, Serial No. 40,948

Claims.

The present invention pertains to shuttle checks for fly shuttle looms, and has more particular reference to the type of shuttle check embodying a shuttle engaging binder.

The conventional loom binder is engaged by the shuttle as the latter enters the shuttle box, the binder being spring-pressed toward the shuttle to thereby check the same. As commonly constructed, the binder is pivoted to the lay at its outer end, with the result that, in the absence of exceptionally accurate adjustment of the shuttle box and binder, the area of the contact between the binder and the shuttle is quite small.

It has been proposed to provide a floating binder having contact with the shuttle over a much greater area, thereby increasing the checking action of the binder. However, such floating binders have not been generally used, the constructions embodying the same having been impractical for various reasons.

,The present invention has for its object to provide, in a shuttle box having a floating binder,

' simple and emcient means for controlling the binder to enable the latter to effectively check the shuttle. To the end mentioned, there is provided and herein disclosed a friction means for opposing movement of the binder by the incoming shuttle, such means comprising a flexible strap frictionally engaging a friction surface on the binder.

The preferred embodiment of the invention is illustrated on the accompanying drawing, of which:

' Fig. l is a plan view of one end of the lay of a loom comprising said embodiment;

Fig. 2 is a view similar to Fig. 1 but with the shuttle fully entered in the shuttle box;

Figs. 3 and 4 are, respectively, front and rear elevations of the outer end of the lay and shuttle 40 box; and

Fig. 5 is a view of the binder in cross-section taken through the spring aperture.

The loom to which the drawing relates is of conventional design except as to the shuttle box and shuttle check. Accordingly, there is herein disclosed only the shuttle check of the present invention, and certain conventional parts closely associated therewith. Of the conventional parts, only the left hand portion of the lay l is shown 50 on the drawings. The lay reciprocates forwardly and rearwardly in the usual manner, the front of the loom being toward the bottom of the sheet,

Figs. 1 and 2.

.The lay is provided with a shuttle box shown 55 as comprising a front box plate 2 and a back box plate 3, it being understood that a shuttle box may also be provided at the other end of the lay. The shuttle box opens inwardly of the loom whereby the shuttle 1- may be picked along the lay into and out of the shuttle box. Conven- 5 tional shuttle picking means may be employed, there being shown on, the drawing the usual picker stick 5 having a picker 5 mounted directly thereon.

The shuttle box is provided with a binder 1 10 which is adapted to be engaged and moved by the shuttle as the latter enters the shuttle box. The binder is movable generally laterally of the shuttle box and is adapted to retard or check the incoming shuttle. The binder l is mounted for 15 floating movement, by which I means that it is not confined to pivotal movement on a fixed axis, but is capable of both pivotal movement and rectilinear movement or a combination of both, so as to engage the shuttle over a comparatively 20 large area. The floating movement of the binder may be obtained in any desired manner. As shown on the drawing, such movement is obtained by providing the outer end of the binder with a head portion which is slotted at 8 to receive 25 a fulcrum pin 9 which is fixed to the lay adjacent the outer end thereof and on which the binder may both pivot and slide laterally of the shuttle box.

Suitable spring means are provided for yield- 30 ingly opposing movement of the inner end of the binder by the incoming shuttle. The particular means shown is comprised of a conventional binder spring I0 having its outer end fixed to the lay and its inner end bearing against the binder adjacent the inner end H of the latter. Pivotal movement of the binder by the incoming shuttle serves to operate the loom protection mechanism of which only the finger i2 is shown. The further, or floating movement of the binder by the shuttle is opposed by the friction means of the present invention.

The binder is provided with a curved friction surface which projects exteriorly of the shuttle box. In the present embodiment such surface is comprised of the curved surface of a metal plate member 13 which is fixed to the outer end of the binder on the side thereof opposite to its shuttle engaging surface. A flexible strap l 4 frictionally engages the said curved friction surface, one end of the strap being fixed to the lay while the other end thereof is yieldingly connected to the binder.

The fixed end of the strap preferably extends laterally of the lay outwardly of the picker 6 and is fastened to a bracket 15. The bracket may be 5 adjustably secured to the lay by a bolt and slot connectionas shown on the drawing. When the bracket is adjusted to its innermost position the friction strap extendsgacross the path of the picker so that the strap will be engaged and tight ened by the'picker when the latter is moved outwardly by the shuttle.- The other end of the friction strap is fastened to one end of a coiled tension spring 16. 'Ihis'spring may be partly housedin an-aperture I'l (Fig. 5) formed in the When theshuttle is absent fromtne" shuttle box the outer end of the binder occupiesjthe position shown by Fig. 1 while theinner end of the binder is positioned forwardly, from itsFig. 1, position. The incoming shuttle first moves the inner end ofthe binder to operate the protection V mechanism. 7 gaging surface of the binder normally projects 'I'heouter end of the shuttle eninto the shuttle' box, Fig. 1. v The entering shuttle must, therefore, push the outer end of the binderlaterally of the shuttle box, Which'move ment is opposed by the friction of thestrap l d on the curved friction surface on the binder.

l Such'movement is also-opposed by the spring 16, vas will be apparent when it is considered that the spring is stretched as the outer end of the binder is moved by the shuttle.

. The floating binder as 'thus described engages the incoming shuttle overa comparatively large area and accordingly provides a greatly improved 'checking action. The use of a friction strap yieldingly connected to'the binder provides adequate-resistance to the entrance of the shuttle into the shuttle, box but provides very much less resistance to the picking of the shuttle out of the ,box.- That is, entrance of the shuttle into the;

box is opposed by the action of the spring 16 and the friction of the strap, but after the shuttle is fully boxed the spring and friction,in effect, work against each other and thus apply very little pressure to the binder. 1 I

Having fully disclosed the preferred embodiment of my invention, I claim: 7 V V 71. In a fly shuttle 1oom,'the combination of a lay, a shuttle, a shuttle box having a binder adapted to be engaged and moved laterally of the f shuttle box by the incoming shuttle, said binder being provided with a curved friction surface projecting exteriorly of the shuttle box, a flexible "friction strap engaging said surface, means fix-' Zing one end of said strap to the lay, and spring 7 I 7 'means yieldingly connecting the other end of the strap to the binder, said spring means acting in a direction'to pull said strap against said friction surface to thereby frictionally oppose said movement of the binder by the shuttle.

2. In a fly shuttle loom, the combination ofla lay, a shuttle, a shuttle box, a floating binder adapted to be engaged and moved laterally of the V shuttle box by the incoming shuttle, spring means I yieldingly opposing movement of the in'nerend of the binder by the shuttle,'said binder being provided adjacent its outer end with'a curved" friction surface projecting .exteriorly of the shut tle b'ox, a flexible friction strap engaging said surface, means fixing one end of said strap to the lay, and spring means connecting the other end of the strap to the binder, said'spring means acting in a direction to pull said strap against said surface whereby the strapfrictionally opposes movement of the outer end ofthe binder by the incoming shuttle. V r I .3. In a fly, shuttle 1oom,'the combination of a lay, a shuttleya shuttle box, a fixed pivot adjacent the outer end of the shuttle box, a floating 1 binder having a slotted head in which said pivot engages, a binder spring yieldingly opposing piv- V I otal movement of the inner end of said binder about saidpivot, and-friction means opposing sliding movement of said slotted head on said pivot, said frictionmeans being comprised of a flexible strap frictionally engaging a friction SUI-5' 7 face formed on said binder and a' spring pulling said strap against said friction surface;

4. In a fiy shuttle loom, the combinationof a lay, a shuttle, shuttle picking means including a; V picker, a shuttlebox having a binder adapted to be engagedand moved laterally of the shuttle box tionally engaging said surface to thereby frictionally oppose said movement of the binder by the shuttle, spring means yieldingly connecting one end of said strap to the binder, and a bracket 1 to which the other end of the strap is fixed, said bracket holding said strap in position to be engaged and tightened by the picker as the latter is moved outwardly by the shuttle,

'by the incoming shuttle, said binder being pro- [f vided with a curved friction surface projecting 'exteriorlyjof the shuttle box, a flexible strap fric- 5. In a fly shuttle loom, the combination of a lay, a shuttle, a shuttle box, a floating binder "having a shuttle engaging surface on one side thereof, said binder being adaptedto be engaged and moved laterally of the shuttle box by the incomingshuttle, a binder spring actingon the binder adjacent the inner endrof the latter, a

curved frictionplate fixed to the outer end of said binder on the opposite side of the latter from said shuttle engaging surface,'a flexible frictionstrap T frictionally engaging the curved surface of said 7 'plate, means fixing 'one end of said strap to the lay, and a springconnecting the other end of the strap to the binder, said spring acting in a direction to pull said strap against said plate whereby the strap 'frictionally'opposes movement of the outer end of the binder by the shuttle;

' cARi. D. BROWN]?

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