US1804019A

US1804019A - Slub catcher

Info

Publication number: US1804019A
Application number: US460910A
Authority: US
Inventors: John O Mckean
Original assignee: FOSTER MACHINE CO
Current assignee: FOSTER MACHINE Co
Priority date: 1930-06-13
Filing date: 1930-06-13
Publication date: 1931-05-05
Anticipated expiration: 1948-05-05

Description

May 5, 1931. J. o. McKEAN SLUB GATCHER Filed June 13, 1950 INVENTOR KW BY ATTORNEYS 50 tion;

Patented May 5, 1931 UNITED STATES PATENT OFFICE JOHN O. MCKEAN, OF WESTFIELD, MASSACHUSETTS, ASSIGNOR TO FOSTER MACHINE COMPANY, OF WESTFIELD, MASSACIIUSETTS, A CORPORATION OF MASSACHUSETTS SLUB CATCHER Application filed .Tune 18,

The object of my invention is to provide certain improvements in the construction, form and arrangement of the several parts whereby the e-fliciency of the slub catcher is materially increased.

One feature of my invention is the provision of a yarn plate having a longitudinally tapered incoming yarn guiding groove, which groove exerts a concentrating or bunching action on the slubs. Another feature is the provision of a slub engaging member comprising a blade arranged diagonally across the yarn plate and consequently at an angle to the run of the yarn for ensuring a shearing off and self cleaning action of the blade with respect to the yarn slub. Another feature is the provision of a swinging downwardly and forwardly inclined blade yieldingly held against a yielding front stop whereby the blade and the front stop may be swung upwardly a sufficient distance to permit the ready clearing away of any accumulated waste. Another feature is the adjustability of the yielding front stop wherebv the normal space between the free edge of the blade and the yarn plate may be accurately adjusted for yarns of different sizes.

Other features of my invention are the adj ustability of the slub engaging member bodbackward swinging movement of the memher, due to its engagement by the slub, will be limited before the cutting edge of. the member contacts with the yarn plate. Still another feature is the removability of the yarn plate whereby the plate may be readily replaced when so desired and whereby the bracket may be cast of a less expensive and softer metal than the yarn plate.

Practical embodiments of my inventlon are represented in the accompanying draw ings, in which Fig. 1 represents my improved slub catcher in top plan;

Fig. 2 represents the same 1n s1de eleva- 1930. Serial No. 460,910.

Fig. 3 represents the slub catcherin rear elevation; i Fig. 4 represents a detail front view of the slub engaging member and its adjacent parts;

Fig. 5 represents a detail cross sectional View, taken in the plane of the line VV of Fig. 4, looking in the direction of the arrows;

Fig. 6 represents a detail section taken in the plane of the line VI-VI of Fig 3;

Fig. 7 represents a detail plan View of a sli htly modified form of yarn plate;

ig. 8 represents a section taken in the plane of the line VIII-VIII of Fig. 7, looking in the direction of the arrows, and

Fig. 9 represents a section taken in the plane of the line IX-IX of Fig. 7, looking in the direction of the arrows.

My improved slub catcher is herein shown as a bracket which may be of cast metal, said bracket comprising an integral resilient yoke having upper and lower horizontally disposed branches 1 and 2. The lower branch 2 is shown as having a transverse hole 3 therethrough for the reception of a bracket supporting bar 4:, a set screw 5 being provided for clamping the bracket to the said bar.

This lower yoke branch 2 is provided with a lateral extension 6 in the front end of which is removably seated, by means of screws 7 and 8, a downwardly and rearwardly inclined yarn plate 9 having in its face alined incoming and outgoing grooves. The inclination of the plate will cause the yarn to be immediately drawn into its grooves as it passes through the slub catcher. In the form shown in Figs. 1 to 6 inclusive the incoming groove 10 is shown as'V-shape in cross section while in Figs. 7 and 9 the incoming groove 10* is shown as having parallel side walls and a longitudinally inclined bottom wall. In both forms the outgoing groove 11 is shown as V-shape in cross section.

The diagonally disposed slub engaging member, herein shown as a blade 17 which is normally inclined downwardly and forwardly, is rotatably mounted on this pivot bar 16 to swing rearwardly toward and forwardly away from the yarn plate 9. In the present instance this pivotal connection is provided by means of spaced

lugs

18 and 19 uprising Ifrog: the blade and rotatably mounted on said A pin 20 which projects laterally from the uprising post 15 serves as a back stop for limitin the rearward movement of the slub engagmg blade 17 just before its cutting edge contacts with the yarn plate 9.

A yielding front sto 21 is provided for the slub engaging blade 1 which front stop in the present instance is provided with a lateral arm 22 which normally engages the blade for yieldingly limiting its forward swinging movement. The hub 23 of this yielding front sto is rotatably mounted on the lateral bar 16 tween the post 15 and the blade 17. The

osition of the yielding front stop 21 is adustable to limit the normal forward movement of the slub engaging blade by providing the front stop with a lug 24 which carries an adjusting screw 25, the inner end of which bears against the post 15. A coil spring 26 connects the post 15 with the front stop 21 and serves to yieldingly hold the front stop at the limit of its rearward movement. The extension movement of this spring 26 is sufficient to permit both the front stop and the blade to be swung forwardly and upwardly a considerable distance away from the yarn plate for permitting the ready clearing away of any accumulated waste without disturbing the setting of the blade.

The slub engaging blade 17 is yieldingly held against the lateral arm 22 of the yielding front stop 21 and normally spaced the desired distance from the face of the yarn plate 9 for yarns of difierent sizes, by means of a spring 27 which is coiled around the lateral bar 16, one end of which spring is secured to the blade and the other end to an adjusting sleeve 28, rotatably mounted on the bar 16 between the

lugs

18 and 19 of the blade. This adjusting sleeve may be removably secured, by a cotter pin 29, to the bar 16 in any of the rotative 'adjustments of the sleeve for increasing and decreasing the tension of the spring. The tension of this spring 27 is intended to be suflicient to swing the blade to not only normally hold the blade against the yielding stop 27 but also to permit the blade to be swung forwardly and upwardly out of the way, with the ielding stop when so desired.

T 1e means which I have shown-for bodily adjusting the blade toward and away from the face of the yarn plate 9 to cause the cutting edge of the blade to just escape contact with the face of the plate when the blade is swung rearwardly into engagement with the back stop 20, comprises an adjusting screw 30, the shank of which passes through the upper branch 1 into engagement with the lower branch 2 of the yoke whereby the branches of the yoke may be forced out of their normal relationship to raise and lower the said blade. In the modified form shown in Figs. 7 and 8 the face of the plate has a shallow recess-for allowing the loose knits that come in the am to free themselves more easily and quick y.

From the above description it will be seen that means are not only provided for bodily adjusting the blade toward and away from its yarn plate but also that the limit of the normal forward position of the blade may also be readily adjusted .by means of the adjustability of the yieldin front stop to suit yarns of different sizes. It will also be seen that by mounting the blade diagonally with respect to the run of the yarn across the yarn plate, a shearing off action may be obtained on the slub. Other advantages hereinbefore pointed out are also obtained by the novel construction of the slub catcher.

It is evident that various changes may be resorted to in the construction, form and arrangement of the several parts without departing from the spirit and scope of my invention, and hence'I do not intend to be limited to the particular embodiments herein shown and described, but what I claim is 1. In a slub catcher, a yarn plate, and a slub engaging member disposed diagonally across the plate in a plane oblique to the plane of yarn travel.

2. In a slub catcher, a yarn plate having an incoming groove tapered longitudinally in a vertical plane to form parallel sides and an inclined bottom, and a slub engaging member disposed diagonally across the plate in a plane oblique to the plane of the yarn travel.

- 3. In a slub catcher, a yarn plate having a longitudinally tapered incoming groove and a slub engaging member disposed diagonally across the plate in a plane oblique to the plane of yarn travel.

4. In a slub catcher, a yarn plate having alined incoming and outgoing grooves, the incoming groove being longitudinally tapered, and a slub engaging member disposed diagonally across the plate in a plane oblique to the plane of yarn travel.

5. In a slub catcher, a yarn plate, a swingin slub engaging member disposed diago na' ly across the plate in a plane oblique to the plane of the yarn-travel, a front stop, and means for yieldingly holding the member against the front stop.

6. In a slub catcher, a yarn plate, a swinging slub engaging member disposed diagonally across the plate in a plane oblique to the plane of the yarn travel, a front stop, means for yieldingly holding the member against the front stop and means for adjusting the position of the front stop and thereby the member.

7. In a slub catcher, a yarn plate, a swin ing slub engaging member, a front stop yieldable by manual manipulation of said member, and means for yieldingly holding the member against the front stop.

8. In a slub catcher, a yarn plate, a swingin slub engagin member disposed diagonally across the p ate in a 1plane oblique to the plane of the yarn trave a ieldin front stop, and means for yiel ing y holding the member against the front stop.

9. In a slub catcher, a yarn plate, a swinging slub engaging member, a front stop, yieldable by manual manipulation of said member means for yieldingly holding the member against the front stop, and means for adjusting the normal position of the front stop and thereby the member.

10. In a slub catcher, a yarn plate, a swingslub engaging member disposed diagoin naIly across the plate in a plane oblique to the plane of the yarn travel, a yielding front stop, means for yieldingly holding the member against the front sto and means for adjusting the normal position of the front stop and thereby the member.

11. In a slub catcher, a yarn plate, a swingin slub engaging member disposed diagona lly across the plate in a plane oblique to the plane of the yarn travel, front and back stops, and means for yieldingly holding the member against the front stop.

12. In a slub catcher, a yarn plate, a swinging slub engaging member disposed diagonally across the plate in a plane oblique to the plane of the yarn travel, front and back stops, means for yieldingly holding the member against the front stop, and means for adjusting the normal position of the front stop and thereby the member.

13. In a slub catcher, a yarn plate, a swinging slub engagin member, a back stop, a front stop yieldab e by manual manipulation of said member, and means for yieldingly holding the member against the front stop.

14. In a slub catcher, a yarn plate, a swinging slub engaging member disposed diagonally across the plate in a plane oblique to the plane of the yarn travel, a back stop, a yielding front stop, and means for yieldingly holding the member against the front stop.

15. In a slub catcher, a yarn plate, a swinging slub engaging member, a back stop, a front stop yieldable by manual manipulation of said member, means for yieldingly holding the member against the front stop, and

.means for adjusting the normal position of the front stop and thereby the member.

16. In a slub catcher, a yarn plate, a swinging slub engaging member disposed diagonally across the plate in a plane oblique to the lane of the yarn travel, a back stop, a yiel ing front stop, means for yieldingly holding the member against the front stop, and means for adjusting the normal position of the front stop and thereby the member.

17. In a slub catcher, a yarn plate, a swinging slub engaging member yieldingly held at the limit of its forward movement, means for adjusting the member bodily toward and away from the yarn plate, and means for adjusting the normal forward position of the member. a

18. In a slub catcher, a yarn plate, a swin ing slub engaging member yleldingly heI d at the limit of its forward movement, means for adjusting the member bodily toward and awa from the yarn plate, and means for adjusting the normal forward position of the member, said member being disposed diagonally across the plate in a )lane oblique to the plane of the yarn travel.

19. In a slub catcher, a downwardly and rearwardly inclined yarn plate, and a downwardly and forwardly inclined swinging slub engaging member yieldingly held at the limit of its forward movement, said member being disposed diagonally across the plate in a plane oblique to the plane of the yarn travel. 20. In a slub catcher, a downwardly and rearwardly inclined yarn plate having a longitudinally tapered incoming groove, and a downwardly and forwardly inclined swinging slub engaging member yieldingly held at the limit of its forward movement, said member being disposed diagonally across the plate in a plane oblique to the plane of the yarn travel.

21. I11 a slub catcher, a yarn plate, a swinging slub engaging member, a front stop therefor yieldingly held at the limit of its rearward movement, means for yieldingly holding the member at the normal limit of its forward movement against the front stop, and a back stop for limiting the rearward movement of the member.

22. In a slub catcher, a yarn plate, a swinging slub engaging member, a front stop therefor yieldingly held at the limit of its rearward movement, means for yieldingly holding the member at the normal limit of its forward movement against the front stop, and a back stop for limiting the rearward movement of the member, said member being disposed diagonally across the plate.

23. In a slub catcher, a bracket, a yarn plate, a laterally disposed pivot bar, a slub engaging member and an adjustable front stop therefor, both mounted to swing on said bar, means ieldingly holding the member against the ront stop, and means yieldingly holding the front stop in its adjusted position.

24. In a slub catcher, a bracket, a downwardly and rearwardly inclined yarn plate, a laterally disposed downwardly and rearwardly inclined pivot bar, a slub engaging member and an adjustable front stop therefor, both mounted to swing on said bar, means yieldingly holding the member against the front stop, and means yieldingly holding the front stop in its adjusted position.

25. In a slub catcher, a resilient yoke having horizontally disposed lower and upper branches, a yarn plate carried by the lower branch, a post uprising from the upper branch, a pivot bar projecting laterally from said post, a slub enga 'ng member and an adjustable front stop t erefor, both mounted to swing on said her, means yieldingly holding the member against the front stop, and means yieldingly holding the front stop in its adjusted posit-ion.

26. In a slub catcher, a resilient yoke having horizontally disposed lower and upper 10 branches, a yarn plate carried by the lower branch, a post uprising from the u per branch, a pivot bar projecting laterally rom said post, a slub enga ing member and an adjustable front stop gierefor, both mounted to swing on said bar, means ieldingly holding the member against the ront stop,

means yieldingly holding the front stop in its ad usted position, and means engaging the yo e branches for adjusting the member to- 23 ward and away from the yarn plate.

In testimony, that I claim the foregoing as my invention, I have signed my name this 24th day ofMay, 1930.

. JOHN O. MCKEAN.