US1807749A - Tube frame fob axicotster loom - Google Patents

Description

June 2, 1931. o. v. PAYNE 1,807,749

TUBE FRAME FOR AXIINSTER LOOMS Filed April 10, 1930 v vw *M A 77-0,? NEKS BI 05 CAR v. PA YNE Patented June 2, 1931 UNITED STATES PATENT OFFICE OSCAR V. PAYNE, OF WQRCESTFR, MASSACHUSETTS, ASSIGNOR TO CROMPTON & KNOWLES LOOM WORKS, OF WORCESTER, MASSACHUSETTS, A CORPORATION OF IMASSACH'USETTS TUBE FRAME FOE AXIVII'NSTER LOOM Application filed. April 10,

kind having a sliding hook.

In general form my invention contemplates the provision of a hook having apart to extend within atube frame to have guiding relation with a part of the bracket which cooperates with the hook. t is an important object of my present invention to provide such a construction adapted to the use of a compression spring suificiently small in diameter to avoid interference with the screws which secure the parallel arms of the bracket to the interior surfaces of the tube frame.

It is a further object of my present invention to facilitate the assembly of the tube frame bracket having a sliding hook the provision of a removable keeper held in position partly by the bracket and partly by walls of the hollow tube frame, said keeper receiving the thrust of one end of the spring and when removed simplifying the assembly of the tube frame.

It is a more specific object of my present invention to form the spring in such a way that it cannot move out of position by rotating around its axis.

Vfith these and other ObJGCtS n 'VlGW which will appear as the description procoeds, my invention resides in the combination and arrangement of parts hereinafter described and set forth in the claims.

In the accompanying drawings where n a convenient embodiment of my invention 1s set forth, I

Fig. 1 is a front elevation, partly n vertical section, of a tube frame employing my improved construction, J:

Fig. 2 is a vertical section on line 2-2 oi Fig. 1, V I

Fig. 3 is a perspective View of the lower portion of the bracket showing the spring and plate therefor in normal position, and

Fig. i is a view similar to Fig. 3, but with the plate and spring in the position they assume prior to complete assembly.

Referring to Fig. 1, I have shown a tube frame having a tubular bar 11 which may 1930. Serial No. 443,134.

be rectangular in cross section. A plurality of yarn tubes 12 are positioned to receive tuft yarns from a spool. S shown in the drawings as being empty although it is to be understood that there will be wound on the spool a series of variously colored yarns depending upon the requirement of the pattern. The tube frame has secured thereto an upwardly extending spool bearing 13 having a lower arm 14 extending into and held to the upper part of the bar by means of a screw 15. A corresponding chain engaging member 16 having an offset 17 to pass between the links of a chain 18 extends ver tically along and is secured to the vertical portion of the spool bearing. The lower part of the chain engaging member is formed as an arm 19 which extends into and is secured by means of screws 20 to the tubular bar. The clutch C has a stud 21 around which the tube frame is moved as a center by a force transmitted through stud 22. A finger 23 secured to the clutch projects above the lower lip 24 and between the lateral wings 25 for a purpose to be described. The members 13 and 16 which may be considered as hangers or ears or brackets are designated collectively as a bracket in this description.

A hook member 26 has a portion to overhang one of the links 18 when the tube frame is in the position shown in Fig. 1, said hook supporting the tubeframe in a well understood manner. The matter thus far described, except for features of the hook and parallel arms 14: and 19 to be described here-- inafter, may be of the usual construction.

I provide the lower end of the hook with a pair of horizontally spaced upper guides 30 and a corresponding pair of lower guides 31, said guides sliding along and in contact with the upper and lower arms 14 and 19, respectively. Extending between the upper and lower arms is a tongue 32 substantially parallel to the arms and formed integral with the hook member.

The hook member normally moves to the out or chain engaging position shown in Fig. 1 and as the clutch C moves inwardly to release the tube frame the finger 23 engages a part of the hook to movethe same away from rior wall of the bar 11.

the chain, causing the tongue to move inwardly and also causing sliding movement of the slide portions and 31 along their corresponding arms. The hook and its manner of operation may be substantially the same as that shown in copending application Ser. No. 411,934 filed by me December 5, 1929.

In carrying my present invention into e1":- lect I -form the arms 14 and 19 substantially as shown in Figs. 3 and 4, bending the upper arm downwardly at and the lower arm upwardly as at 41. The lower bond is short, as is also the greater portion of the upper bend, but the latter as shown herein has an extension 42 sufliciently long to extend to the lower bend 41. The bent portions 40 and 41 together with the extension 42 provide an open slot through which the spring 43 may be passed when being titted over the tongue 32.

A spring holding plate 44 having a horizontal slot 45 is proportioned to lie between the arms 14 and 19 and be restrained by the latter against vertical motion. The continuous vertical wall 46 of the plate 44 is positioned to engage one of the vertical interior walls of the tubular bar 11, while the opposite pair of edges 47 which are separated by the open slot 45 engage the other vertical inte- In this way the plate is held against motion transversely of the bar when in normal position. Vertical motion is resisted by the arms 14 and 19.

hen assembling, the hook member will be placed as shown in Fig. 4, after which the sprin may he slipped over the tongue. The spring which is somewhat longer than the space between the hook and the bent portions 40 and 41, will be compressed and the plate 44 be slipped between the arms 14 and 19 with the tongue 32 in the slot Excess lateral motion on the part of the tongue will be presented by the end oi" slot 45 and the extension 42. The spring when released will l ilvtif}; the plate against the extension and the bent parts 40 and 41 so that the bracket may be handled as a unit, the plate being held against loss by the spring.

As shown in Fi g. 1 the ton ine is of sufi'icient length so that when the hook is in its outermost position the inner end of the tongue will extend beyond the inner surfaces of the bends 40 and 41, thus making it impossible for said tongue to get in front of the extention 42 to prevent sliding motion of the hook.

The spring 43 may be made with coils of smaller diameter than heretofore proposed to avoid all chance or engaging the screws 15 and 20. In order to prevent the spring from threading its way out of the bracket I prefer to close the end coils as suggested in Fig. 4. \Vith this construction the spring may rotate about its axis without having an end free to pass into any notches or openings adjacent the ends of the spring.

The open space between the bends 40 and 41 is sufliciently large to permit the relatively small spring to be passed therethrough. This construction, while being convenient, is not necessary, as l find it is possible by twisting the hook relatively to the parallel arms to place the spring over the tongue without necessarily having the w 1019 of the spring pass between the bends 40 and 41.

From the foregoing it will be seen that l have provided a plate 44 which is IOlllOVtlblC but is normally held against lateralv displacement when assembling, said plate acting to guide the tongue 32 and therefore assisting in the proper motion of the hook 26. The plate also acts to retain the spring and facilitates assembly of the several parts of the bracket. A spring may be employed the coils of which are small enough to be kept away from the retaining screws 15 and 20 for the arms thereby insuring llllll'lttll'l'llpilfitl movement of the hook. It will further be seen that the spring may be made with closed coils on the ends thereof so that there no opportunity for the spring to thread its way out of the position shown in Fig. 1. Also, he slot 45 and eXtension are so proportioned as to determine etlectively a fixed path of movement for the tongue 32. 4

Having thus described my invention it will be seen that changes and modifications may be made therein by those skilled in the art without departing from the spirit and scope of the invention and I do not wish to be limited to the details herein disclosed, but what I claim is:

1. In a tube frame for an Axminster loom operating with a transporting chain, a tubular bar, a chain engaging bracket having a pair of substantially parallel arms extending into and secured to the hollow bar, a chain engaging hook having a portion extending between the arms and slidable with respect thereto, a tongue rigid with the hook and lying intermediate the arms, a resilient member around the tongue to urge the hook member normally into chain engaging position, and a removable guide plate for the tongue separate from and positioned by said arms, said plate being normally held in position by the spring.

2. In a tube frame for an nxminster loom operating with a transporting chain, a tubu- 'ar bar, a chain engaging bracket haring a pair of substantially parallel arms ex ending into and secured to the hollow bar, a chain engaging hook having a portion extending between the arms and slidable with respect thereto, a tongue integral. with the hook and extending between the arms, a guide plate separate from and limited as to l'l'lOVOlllClli. longitudinally of the bar by the arms, said plate having guiding relation with respect to the tongue, and resilient device interposed between the hook and the plate to hold the latter against the arms and tending normally to hold the hook in chain engaging position.

3. In a tube frame for an Axminster loom having a transporting chain, a tubular bar, a bracket having a pair of spaced arms extending into the hollow bar, a hook, sliding guide means for the hook including a member extending between and parallel to but spaced from the arms, a removable plate determined as to longitudinal position in one direction with respect to the bar by the arms and having guiding relation with respect to said member, and resilient means interposed between the plate and hook to hold said plate normally in position and to. urge the hook toward chain engaging position.

4. In a tube frame for an Axminster loom having a transporting chain, a tubular bar, a chain engaging bracket secured to the bar, a hook member having guide means extending within the hollow bar, said guide means including a portion located between and spaced from opposite sides of the bar, a guide plate held against longitudinal motion with respect to the bar in a direction away from the bracket and located within the bar and having guiding relation with respect to said portion, and a resilient device interposed between the plate and the hook and holding the plate normally in guiding position for said portion and also urging the hook toward chain engaging position.

5. In a tube frame for an Axminster loom operating with a transporting chain, a tubu lar bar, a chain engaging bracket having a pair of substantially parallel arms extending into and secured to the bar, a chain engaging hook having a portion extending between the arms and slidable with respect thereto, the arms being bent toward each other to define parts extending transversely of the bar, a tongue movable with the hook and having the end thereof farther from the adjacent end of the bar than the transverse faces of said bent portions which are nearest the adjacent end oi the bar, a plate to engage the bent portlons, and a spring surrounding said tongue and engaging the plate and hook and holding the latter in cl ain engaging position and holding the plate in normal tongue guiding position.

6. In a tube frame for an Axminster loom operating with a transporting chain, a tubular bar, a chain engaging bracket having a pair of substantially parallel arms extend ing into and secured to the bar, a chain engaging hook having a portion extending between the arms and slidable with respect thereto, a tongue rigid with the hook and moving therewith, the inner ends of said arm-s be1ng bent toward each other to extend transversely across the bar, one of said bent portions being relatively short and the major part of the other of said sections also being short, said other bent portion having an extension lying across the bar and terminating in proximity to the first named bent portion, a plate separate from the arms lying between the latter and having an open slot through which the tongue extends, said plate being removable and guiding the tongue to determine the path of movement of the hook, the extension engaging and guiding the tongue, and resilient means surrounding the tongue and engaging the plate and hook to hold the latter in normal chain engagin position and hold the plate in normal tongue engaging position.

7. In a tube frame for an Axminster loom operating with a transporting chain, a hollow tubular bar, a chain enga ing bracket having a pair of substantially parallel arms extend mg int-o and secured to the hollow bar, a chain engaging hook having a portion extending between the arms and slidable with respect thereto, a tongue rigid with the hook and moving therewith, the inner ends of said arms being bent toward each other to extend transversely across the bar one of said bent portions being relatively short and the major part of the other of said sections also being short, said other bent portion having an extension lying across the bar and terminating in proximity to the first named bent portion, a plate lying between the arms and having an open slot through which the tongue extends. said plate being removable and guiding the tongue to determine the path of movement of the hook, and resilient means surrounding the tongue and engaging the plate and hook to hold the latter in normal chain engaging position and hold the plate in normal tongue engaging position, the slot in said plate extending along said extension so that the end of said slot together with the extension act to prevent lateral movement of the tongue with respect to the bar.

8. In a tube frame for Axminster looins having a transporting chain, a tubular bar. a chain engaglng hook member, guiding means moving with the hook member and extending within the bar, interior guiding surfaces in the bar to engage and determine the motion of the hook member, a guide plate within the bar to engage and having sliding relation with respect to said guiding means. 7

means to limit movement "of the plate in a direction longitudinally of the bar, and a resilient device between the plate and hook member to hold the latter normally in chain engaging position and the plate against said means to limit movement.

9. In an Axminster loom tube frame to cooperate with the transporting chain. a tubular carrier bar, a chain engaging bracket secured thereto, a chain engaging hook slidably mounted with respect to the bracket, a resilient member to act upon the hook, and means defining an inclosure for the resilient member, said means including integral portions of the bracket and in part by a plate separate from the bracket but normally in contact With the latter and the resilient element to limit movement of the latter in one direction. 10. In an rixminster tube frame to cooperate with the transporting chain, a tubular bar, a bracket secured to the bar and adapted for engagement with the chain, a chain en gaging hook slidable relatively to the bracket, a compression spring located within the bar and having one end operatively related to the hook to hold the latter in normal chain engaging position, and means defining an inclosure for the spring including integral parts of the bracket, said inclosure means 1: being formed in part by a removable plate to engage the spring and prevent movement of the latter in one direction.

11. In an Axminstcr tube frame to cooperate with the transporting chain, a tubular bar, a bracket secured to the bar and adapted for engagement with the chain, a chain engaging hook slidable relatively to the bracket, a compression spring located within the bar and having one end operatively related to the :5 hook to hold the latter in normal chain engaging position, and means defining an inclosure for the spring including integral parts of the bracket, said means being formed in part by a removable plate to engage the spring and prevent movement of the latter in one direction, said plate having guiding relation with the hook and being held against transverse movement with respect to the bar.

12. In an Axminster tube frame to cooper- 35 ate with a transporting chain, a tubular bar,

a chain engaging bracket having portions extending transversely of the axis of the bar and fixed with respect to the latter, a hook slidable in a direction parallel to the axis of the bar and limited as to movement in one direction by said portion of the bracket transverse of the bar, a member Within the bar separate from the bracket and limited as to movement in one direction parallel to the axis of the bar by said bracket, and aresilient ele ment interposed between the member and said portion of the bracket transverse of the bar and having operative relation with the hook to hold the latter in normal position.

In testimony whereof I have hereunto ai'lixed my signature.

OSCAR V. PAYNE.

Images