US2747815A - Yarn guide - Google Patents

Description

1956 L. TRAPIDO 2,747,815

YARN GUIDE Filed Aug. 21, 1953 ATTORNEY United States Patent 6) &- Feldman,--Inc., New York, N. Y., acorporation of New York Application August- 21, 1953, Serial No. 375,674

8 Claims. (Cl. 242-157) This invention relates to yarn guides for use in textile apparatus and is concerned more particularly with a novel guide, which is superior to prior similar guides in a number of'respects The newguide is of the insert type and is so constructed that, although the insert can be readily removed and replaced in a few seconds, the guide can be readily threaded without the possibility of trapping the yarn between the insert and its holder. The insert is held firmly in place by parts-of'the guide without the necessity of using'cement-or other adhesive and, since there is no looseness or play between the insert and holder, the guide may'beused for traverse purposes and provides a good winding traverse, even when the traverse action is rapid and subjects the guide to jarring. The new guide may be employed in textile machines of various kinds, includin'gredrawingmachines, twisters, etc., and the insert may bemade ofporcelain' or other ceramic material capable of withstanding the cutting action of such yarns as nylon;

For a better understanding of the invention, reference may be made to the accompanying drawing, in which Figs. 1 and 2am views in side and front elevation, respectively, of one formof'the new guide;

Fig. 3 is a sectional view on the line 3--3 of Fig. 2;

Figs. 4 and'S are side elevational views, respectively, of another form of the guide;

Fig; 6 is a sectional view on the line 6-6 of Fig.

Figs. 7 and -8- are side and front elevational views, respectively, of a third form of the new guide; and

Fig. 9 is a sectional view on the line 9-9 of Fig. 8.

The guide shownin Figs. 1 to 3, inclusive, is made of a length of wire and it comprises a shank 10' formed of a loop of wire, the sides of which lie in contact for the major portion of the length of the loop'and may be enclosed within-a sheet metal'clip or. sleeve 11 tightly encircling the. shank. At the closed end' of the loop, the wire is bent to forma ring 10a, throughwhich maypass a screw 12, by which the guide may be attached to a rail or other part of the textile machine. At the top of the shank, the wire is bent to form a pair of arms 13, 14, which are spaced apart and define a seat. At the top of the seat, the wire is formed into a pair of loops 15, 16, which have parallel sides and are upwardly divergent. From the closed ends 15a, 16a of the loops, the inner sides 15b, 16b of the loops extend downwardly to terminate in end sections 150, 16c, which lie in alignment in a direction transverse to the plane of the seat.

An insert 17 of wear-resistant material, such as porcelain or other ceramic, is mounted in the seat and held firmly in place by the arms 13, 14. In the guide illustrated, the insert has a semi-circular bottom and vertical sides and the sides and bottom are formed with a peripheral groove in which arms 13, 14' are received. The insert has a slot 18 extending through it from face to face transverse to the plane of the seat and the walls of the insert defining the entrance openings into the slot are rounded 01f. The end sections 15c, 160 of the downwardly convergent inner sides of loops 15, 16 extend into the 2,747,815 Fatented May 29, 1956 2. top of the'slot and terminate a substantial distance below the top of the insert.

The form of guide shown in Figs. 1to3, inclusive, is preferredfor use when lively yarn is being handled. The yarn can be readily threaded into the guide and, forthis purpose, is laid in the V-shaped recessdefined by the innersides 15b, 16b of'the loops 15, 16.- When the yarn is pushed downward, it passesbetween theend'sections 15c, of the wire'and-then enters the slot beneath the lower ends of the end sections. The threading of the guide is a'simple operation and, since the end sections 15c, 16c terminate within and below the'top of'the slot, there is no chance of theyarn being; trapped between the insert and its'seat. The lower ends'of'the end sections 150, 16c lying within the slot are flat andtend to prevent the yarn from rising out of the slot.

The guide shown in Figs; 46, inclusive, is made of a single length of wire and'comprises a shank 19 similar to shank 10- and formed'of a wire loop, the sidesof which lie in contact and may be enclosed within a clip 20. At its lower end, the shank has a'ring 19a to receive a screw ZI'for attaching the shank to a part '22 of the textile machine; The shank is bent, so that itsupper and lower ends are olfset from each other, and, beyond the upper end of theshank, the wire is bent to form spaced arms 23, 24 to form a seat for an'insert 25having a peripheral groove, in which the arms are received to hold the insert tightly in place.

A pair of loops 26, 27 extend divergently upward from the tops ofthe arms 23, 24 and the loops haveparallel sides connected attheir closed ends 26a, 27a. The insert has an open top slot 28 extending through it from one faceto the other'at an oblique angle to the planes of its faces and the inner'edge of each slot is cut away at-its top to form a channel leading to a shoulder. The inner sides 26b, 27b'of the loops 26, 27have endsections 26c, 270, which lie within the'channels and engage the shoulders. The end section 26c, 27c lie substantially in alignment in a direction'transverse to the plane of the seat and the lower ends of the end sections project into the slot beyond the shoulders and thus overlie the entrance openings into the slot;

Because of the inclination of the slot 28'-to the planes of the faces of insert 25, the yarn tends to'pass through" the guide in contact with the inner vertical edges of the entrance openings to the slot. The lower ends of the sections 260, 27c of loops 26, 27"thus overhang the yarn and tend to keep it from rising out of the slot. At the same time,,th e'yarn canbeeasily-threaded through-the guide and-trapping of the yarn between the guide and-the seat is prevented. Whil'ethe guide shown in' Figs. 4-6, inclusive, is intended primarily for usewith-norrnal running yarn; it may be employed with livelyyarn'.

In some textile machines, it is necessary to remove the yarn at short intervals from the traverse guides and, for this purpose, the form of the new guide shown in Figs. 7-9, inclusive, may be used to advantage. Like the preceding forms, the guide is made of a length of wire, which is bent to provide a shank 29 in the form of a wire loop, the sides of which lie in contact and may be enclosed within a clip 30. At its lower end, the loop is opened to provide a ring 29a for reception of an attaching screw 31. The shank is shown as having been bent, so that its lower portion extends vertically, while its upper ends lies at a low angle to the horizontal. Beyond the upper end of the shank, the wire is bent to form spaced arms 32, 33 providing a seat for an insert 34. At the upper ends of the arms, the forms loops 35, 36 having closed ends 35a, 36a. The insert 34 has a slot 37 extending through it at an oblique angle to the planes of its faces and the inner sides 35b, 36b of loops 35, 36 terminate in end sections 350, 36c, which lie against the opposite faces of the insert 34. The end sections 350, 36c lie at an angle and are connected to their associated sides 35b, 36b by bends 35d, 36d, and each bend partially overlies an entrance opening into the slot 37. While the insert 34 in the guide is held tightly in position between arms 32, 33 and by the pressure of the end sections 35c, 36c of the loops 35, 36, the insert can be readily removed. The yarn may be easily inserted into the slot 37 in the insert by being passed first beyond bend 36d and then beyond bend 35d and removal of the yarn is equally easy. As the bends 35d, 36d are smooth, the insertion and removal of the yarn does no injury "eto.

I claim:

1. A yarn guide, which comprises a shank, a pair of wire arms extending upwardly in spaced relation from the top of the shank to define a seat and terminating in loops extending divergently upwardly above the seat, and an insert of wear-resistant material mounted in the seat and held in place by the arms, the insert having an open top slot extending through it at an angle to the plane of the seat, the loops having free ends near opposite ends of the slot and lying substantially aligned in a direction transverse to said plane.

2. A yarn guide, which comprises a shank, a pair of wire arms extending upwardly in spaced relation from the top of the shank to define a seat and terminating in loops extending divergently upwardly above the seat, and an insert of wear-resistant material in the seat, the insert having a peripheral channel receiving the arms and wide faces on opposite sides of the plane of the seat, the insert having an open top slot extending through it from one of said faces to the other, and the loops having free ends near opposite ends of the slot and substantially aligned in a direction transverse to said plane.

3. A yarn guide, which comprises a shank, a pair of wire arms extending upwardly in spaced relation from the top of the shank to define a seat and terminating in loops extending divergently upwardly above the seat, and an insert of wear-resistant material mounted in the seat and held in place by the arms, the insert having an open top slot extending through it at an angle to the plane of the seat, the loops having free ends lying at least partially within the slot.

4. A yarn guide, which comprises a shank, a pair of wire arms extending upwardly in spaced relation from the top of the shank to define a seat and terminating in loops extending divergently upwardly above the seat, and an insert of wear-resistant material in the seat, the insert having a peripheral channel receiving the arms and wide faces on opposite sides of the plane of the seat, the insert having an open top slot extending through it from one of said faces to the other, and the loops having free ends engaging the opposite faces of the insert adjacent the opposite ends of the slot.

5. A yarn guide, which comprises a length of wire bent to form a shank of loop form, a pair of arms extending upwardly from the top of the shank in spaced relation to form a seat, and loops extending divergently upwardly from the upper ends of the arms, and an insert of wear-resistant material mounted in the seat and held in place by the arms, the insert having an open top slot extending through it at an angle to the plane of the seat, the loops having free ends near opposite ends of the slot and lying substantially aligned transverse to said plane.

6. A yarn guide, which comprises a length of Wire bent to form a shank of loop form, a pair of arms extending upwardly from the top of the shank in spaced relation to form a seat, and loops extending divergently upwardly from the upper ends of the arms, a sleeve enclosing the shank and holding the lengths of wire in the loop close together, and an insert of wear-resistant material in the seat having an open top slot extending through it at an angle to the plane of the seat, the loops having free ends near opposite ends of the slot and lying substantially aligned transverse to said plane.

7. A yarn guide, which comprises a length of wire bent to form a shank of loop form, a pair of arms extending upwardly from the top of the shank in spaced relation to form a seat, and loops extending divergently upwardly from the upper ends of the arms, and an insert of wear-resistant non-metallic material in the seat, the insert having a peripheral channel along its bottom and sides for receiving the arms and faces on opposite sides of the plane of the seat, the insert having an open top slot extending through it from one of said faces to the other and the loops having free ends near opposite ends of the slot and lying substantially aligned in a direction transverse to said plane.

8. A yarn guide, which comprises a length of wire bent to form a shank of loop form, a pair of arms extending upwardly from the top of the shank in spaced relation to form a seat, and loops extending divergently upwardly from the upper ends of the arms, the lengths of Wire in the shank defining an opening at the end of the shank and lying substantially in contact from the opening to the other end of the shank, a sleeve enclosing the shank and holding said lengths of wire close together, and an insert of wear-resistant material in the seat having an open top slot extending through it at an angle to the plane of the seat, the loops having free ends near opposite ends of the slot and lying substantially aligned transverse to said plane.

References Cited in the file of this patent UNITED STATES PATENTS 1,749,940 Houghton Mar. 11, 1930 2,388,239 Decker Nov. 6, 1945 2,570,469 McDermott Oct. 9, 1951 2,657,878 Tiorino Nov. 3, 1953

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