US2493634A - Lay guide - Google Patents

Description

E. A. MASTRIANI ET AL 2,493,634

Jan. 3, 1950 LAY- GUIDE 2 Sheds-Sheet 1 Filed July 16, 1947 INVENTOR. ELVIM A. MATQl A1\J\ KAEOL KULCZ YC K! B AT TORNEY.

' Jan; 3, 1950 E. A. MASTRIANI ET AL 2,493,634-

LAY GUIDE 2 Sheets-Sheet 2 Filed July 16, 1947 dmw 2 1 A: \0m 0 n wig l INVENTOR.

ELVIN A. MAsTQl-Am KAQOL KULCZYCK! BY V 9 A TTO ENE) Patented Jan. 3, 1950 LAY GUIDE Elvin A. Mastriani, Newark, and Karol Kulczycki,

Jersey City, N.

Kellogg Company, J c

tion of Delaware J., assignors to The M. W.

rsey City, N. J a corpora- Application July 16, 1947, Serial No. 761,378

9 Claims. (01. 139188) The present invention relates to a lay guide for a loom.

A guide is usually provided to prevent the lay from having any transverse movement or side sway which would interfere with the proper transfer of a bobbin from the hopper to the shuttle, or which would set up undesirable vibrations in the loom. Such guide usually consists of a block with a groove of rectangular cross-section fixedly clamped to the lay sword and engaging a similarly grooved plate secured to the frame of the loom. The guide presents between its relatively slidable parts limited areas of contact which are confined merely to the parallel side faces of these parts, and which'aiford no guiding confining action in directions transverse to said faces. Furthermore, no provision is made for the relative adjustment of the parts of the guide.

In another prior art form of lay guide, the movable part of the guide has convexly rounded surfaces with their peaks engaging the opposite flat parallel faces of a bar constituting the fixed part of the guide, so that the areas of slide con tact are confined to the narrow strips along said peaks, and aiford no guiding action in directionsv transverse to said faces.

One object of the present invention is to provide a new and improved lay guide which has the maximum of steadying effect on the lay as it is reciprocated, which has a stationary part adjustable with respect to the loom frame, which lends itself to easy wear compensating adjustments, and which is comparatively simple and inexpensive to manufacture.

In carrying out the features of the present invention, the lay guide on each side of the lay comprises a pair of intermated relatively movable members, one of which, serving as a stationary guide, is adjustably mounted on the frame structure of the loom, while the other, serving as a follower, is adjustably carried by the lay sword. One of these members has a V indenture or groove, while the other member has a projection or tenon of corresponding cross-section extending into said groove with a snug, conforming, relatively movable fit. The follower member has a swivel or rotative mounting on the lay sword to permit said follower member automatically to accommodate itself angularly to the stationary guide member in accordance with the angular position of said lay sword.

Various other objects, features and advantages of the invention will be apparent from the following particular description, and from an inspection of the accompanying drawings, in which Fig. 1 is a front elevation partly in section of the right-hand side of a. loom, and shows one form of lay guide embodying the present invention;

Fig. 2 shows partly in top plan view and partly in horizontal section the lay guide of Fig. 1;

Fig. 3 is the side elevation of the lay guide shown in Fig. 1;

Fig. 4 is a front elevation of the right-hand side of the loom, but shows another formof lay guide embodying the present invention;

Fig. 5 shows partly in top plan view and partly in section the lay guide of Fig. 4; and

Fig. 6 is the side elevation of the lay guide shown in Fig. 4.

Referring to Figs. l 3 of the drawings, the loom comprises loomsides I0, only the right loomside with associated lay guide being shown, it being understood that the left loomside with its associated lay guide is of similar construction. Each of the loomsides ID is shown comprising a pair of parallel vertical frame webs II and I2, as described in copending application Serial No. 691,237. The lay (not shown) is supported on a pair of swords I3, each extending between a pair of corresponding frame webs I I and I2 and secured at its lower end to a rocker shaft I4. The rocker shaft is journalled in bearings I5 and I6 mounted respectively on the frame webs II and I2. The lay swords I3 are oscillated from crank shafts (not shown) to cause reciprocation of the lay.

The lay guide comprises a stationary guide I! adjustably supported on the outside frame web I2 by means of studs I8, as will be more fully described, and defining a guide tenon or projection 20 with sloping sides 2| like an inverted V, and with a fiat narrow peak 22, so that the crosssection of said tenon will be in the shape of an isosceles trapezoid. The guide projection 20 arcuately extends in a longitudinal direction concentrically with the axis of the rocker shaft I4, and is long enough to cover the full range of oscillating movement of the lay sword I3 at the radial level of said projection.

The lay guide also comprises a follower 25 in the form of a slide having a groove or indenture 25 of trapezoidal cross-sectional shape corresponding to the cross-sectional shape of the stationary guide projection 20, and of longitudinal arcuate curvature corresponding to the longitudinal arcuate curvature of said guide projec tion. The stationary guide projection 20 thereby extends into the groove 26 of the slide 25 with a snug slide conforming fit.

The slide 25 has a swivel support on the corresponding lay sword I3, and to that end, there is adjustably secured to the lay sword an embracing clamp 3|! shown of the split type, and comprising a block 3! and a cap 32 secured thereto bystuds 33. The block 3| mounts a pivot pin 34 shown in the form of a bolt, and constituting a bearing support for the slide 25. The pivot bolt 34 passes snugly through a bore in the clamp block 3I, and has integral or otherwise rigid therewith a collar 35 of said clamp block, and has a threaded end receiving a nut 31 screwed on said bolt end against the other side of said clamp block. The section of the pivot bolt 34 beyond the collar 35 passes through the slide 25 with a snug swivel or rotative fit, and at its outer end is threaded to receive a lock nut 38 which may be of any suitable type, and in the specific form shown, has a series of peripheral slots into which radial finger extensions from a washer keyed to the bolt 34 are bent, as will be more fully indicated in -Cionnection with the form of the invention shownin Figs. 4-6.

The stationary guide I? may be adjustably moved towards or away from the outside frame web I2 through the mounting studs I8 provided at one end with wrench sockets 39, by which they may be turned for adjustment. Each of these studs has a collar MI integral or otherwise rigid therewith, bearing-against the inner face of the outside frame web "I2, and an end section 4| on one side of said collar passing through said frame web with a snug rotative fit, and threaded to receivea nut 42' hearing against the outer face of saidweb. The section 43 of the stud I8 on the other side of collar 48 is threaded in the guide I1, and has a nut 44 thereon bearing against the innor faceof said guide. This nut may be of the lockewasher type similar to the lock nut "38.

With the nut 42 loose enough to permit the stud I8 to turn in' the frame web I2 without axial movement, and with the lock nut 44 loose on said stud, said stud may be turned by a wrench inserted in the "socket '39. As the stud I8 is turned. the guide I1 is moved along said stud, assuming, of course, that, the slide 25 has not been mounted over said guide in position to restrict its adjust.-

ing movement. After the guide I I has'been properly'located with respect to the frame web I2, the nuts 42 and 44" may be tightened in position.

In the operation of the lay guide, as the laysword I3 is oscillated back and forth between the extreme positions shown in full lines and dot and dash lines il'l'Flg. 3., the slide 25 pivotally carried by said lay sword will ride over the stationary guide 'I I between the extreme positions shown-in full lines'and dot and dash lines, and will swivel about'th'e pivot pin 34 to assume proper seating contact with said guide during its full stroke. During this slide operation, the sloping sides of the slide groove 26 will be in conforming slide contact with the corresponding sloping sides of the guide projection along surfaces of substantial area. The slide will thereby be confined and steadied effectively by the sloping contact surfaces not only against movement radially towards the guide H, but also against transverse movement with respect thereto, and against play about an axis transverse to the longitudinal axis of the pivot pin 34.

"The-contact surfaces between the slide 25 and the guide I! wear without altering the slope of these surfaces, so that such wear can be simply taken up by merely adjusting the clamp. radially inwardly along the, lay sword I3. This adshouldered against one side justment of the clamp 33 can be effected by loosening the studs 33 and shifting said clamp along the sword I3. These studs have their heads extending in countersunk holes in the cap 32 of the clamp 35, and provided with wrench sockets 48. If desired, a set screw 50 may be provided in the cap 32 of the clamp 30 to assure the retention of said clamp in adjusted position on the lay sword I3.

The cap 32 with its mounting studs 33 is desirably located to face the front of the loom, and thereby to render said studs easily accessible for clamp mounting, demounting or adjusting operations. The front end of the space between the frame webs II and I2 is desirably open to permit easy access .150 the different adjustable parts of the lay guide.

In theform of the invention shown in Figs. 4-6, the guide IIa is adjustably supported on the outside frame web I2 and confined against movement away therefrom by means of studs I8a. and is confined in adjusted position against movement towards said frame web by set screws 52. The supporting studs I8a have a snug rotative fit in the frame web I2, and are threaded in the guide IIa, so that said guide may be adjustably moved towards or away from said frame web by turning said studs. These studs may be turned from the outside of the frame web I2 by turning the. heads 53 of said studs'bearing against the outer face of .said web.

The set screws 52 are threaded inthe frame web I2.,Timpinge at their'inner ends against the guide IId, and are provided at their outer ends with wrench sockets. 'Lock nuts '54 on the set screws 52 and bearing against the outer face of theframe' web I2, retain said set screws in adjusted position.

The guide I'Ia'hasa V groove "55, arcuately curved in a longitudinal direction concentrically ofthe, axis of the rocker shaft I4. Extending into this. guide groove 55 with a snug conforming rolling fit, is the V-periphery 5.3 of a follower roller 25a. This roller is supported on the axle bolt 3.4a

for free rotation thereabout desirably through the medium of an anti-friction bearing unit 51 removably retained in an axial bore of said roller, and against the collar 35a. through a snap ring 58,. The roller 25a with the anti-friction bearing unit 51 is retained .on the bolt'34a and against the collar 3511 by the lock-washer nut 38d.

As the lay sword I3 is'oscillated, the follower roller "215a rides over the guide Ila between the extreme full 'line'and dot and dash line positions shown in Fig. 6, thereby steadying the lay in its reciprocating movement. The active length of the guide Ila is less than the peripheral length of the. roller 2311. Nevertheless, since there is inevitably a. certain amount of slippage between the roller 25a and thegui'de Ila. the entire periphery of said, roller 25a is subjected to substantially uniform wear.

The lay guide of Figs. 4-6 can be adjusted, as described in connection with the form of lay guide shown in Figs. 1-3, to properly locate the different parts, of said lay guide in the initial installation, and thereafter to take .up the wear.

While the invention has been described with particular reference to specific embodiments, it is to be. understood that. it is not to be limited there- 'to, but is to be construedbroadly and restricted solelyby the scope of the appended claims.

What is claimed is: 1. In a loom having a lay sword mounted for oscillation about arr-axis, alay guidecomprising a stationary guide member having a guide surface extending in an arcuate direction concentric with said axis, a follower member movable along said guide member and having a follower surface conforming with and extending in contact with said guide surface, said follower surface extending in an arcuate direction concentric with said axis, and means mounting said follower member on the lay sword for oscillating movement therewith.

2. In a loom having a lay sword mounted for oscillation about an axis, a lay guide comprising a stationary guide having a guide surface extending in a plane parallel to the plane of oscillating movement of said sword, a follower engaging said guide for follower movement therealong, and means mounting said follower on said lay sword for oscillating movement therewith as said follower moves along said guide, and for pivotal movement with respect thereto about an axis parallel to said first-mentioned axis.

3. In a loom having a lay sword mounted for oscillation about an axis, a lay guide comprising a stationary guide member having a guide surface extending in a direction concentric with said axis, a follower engaging said guide for follower movement therealong, and means mounting said follower on said lay sword for oscillating.

movement therewith as said follower moves along said guide and for pivotal movement with respect to said lay sword in the plane of oscillating movement of said follower.

4. In a loom having a lay sword mounted for oscillation about an axis, a lay guide comprising a stationary guide having a guide projection of V-shape cross-section extending in an arcuate direction concentric with said axis, a follower having a follower groove of V-shape cross-section conforming with the cross-section of said guide projection and extending in an arcuate direction concentric with said axis, said projection extending into said groove with a snug slide fit, and means mounting said follower on said lay sword for oscillating movement therewith and along said guide.

5, In a loom having a lay sword mounted for oscillation, a lay gide comprising a stationary guide, a clamp mounted on said lay sword and adjustable therealong, a pivot pin supported on said clamp transverse to said sword, and a follower supported on said pin for pivotal movement thereabout, and engaging said guide for follower movemet therealong as said lay sword is oscillated.

6. A lay guide for a loom, comprising a stationary guide member, a follower member movable along said guide member in a vertical plane, a lay sword oscillatable in a vertical plane about an axis, and means mounting said follower on said sword for oscillation therewith and for rotation relative thereto about an axis parallel to said sword axis, one of said members having a groove of generally V-shape cross-section, while the other member has a projection conforming substantially with the cross-section of said groove and extending therein with a guide fit.

7. A lay guide for a loom, comprising a vertically disposed stationary guide member having an arcuate guideway thereon defined by angularly disposed surfaces of revolution, a lay sword oscillatable in a vertical plane about an axis, a follower movable along said guideway in contact with said surfaces, and means mounting said follower on said lay sword for oscillating movement therewith and for pivotal movement rela tive thereto about an axis parallel to said sword axis.

8. In a loom having a lay sword mounted for oscillation about an axis, a la guide comprising a stationary guide member having a guide surface extending in an arcuate direction concentric with said axis, a follower member engaging said guide member for follower movement therealong, and means mounting said follower memher on the lay sword for oscillating movement therewith, for arcuate movement along said guide member and for pivotal movement with respect to said lay sword in the plane of oscillating movement of said follower member, one of said members having a groove of generally V- shape cross-section, while the other member has a projection conforming substantially with the cross-section of said groove and extending therein with a guide fit.

9. In a loom having a lay sword mounted for oscillation about an axis, a lay guide comprising a stationary guide member, a follower member slidable along said guide member, and means mounting said follower member on the lay sword for oscillating arcuate movement therewith and for pivotal movement in the plane of its oscillating movement, one of said members having a groove of generally V-shape cross-section, while the other member has a projection conforming substantially with the cross-section of said groove and extending therein with a slide fit, the contacting relatively slidable surfaces of said members extending in an arcuate direction concentric with said axis, whereby said surfaces will be in contact throughout substantial areas.

ELVIN A. MASTRIANI. KAROL KULCZYCKI.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,956,057 Brown Oct. 10, 1933 2,021,848 Bird et al. Nov. 19, 1935 2,398,264 Turner Apr. 9, 1946

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