Drive shaft for swinging of reed teeth

• US 3,996,973 A
• Filed: 07/07/1975
• Issued: 12/14/1976
• Est. Priority Date: 08/29/1974
• Status: Expired due to Term

• Current Assignee: RUTI Machinery Works Limited
• Original Assignee: RUTI Machinery Works Limited
• Inventors: Strauss, Edgar, Gsell, Xaver
• Primary Examiner(s): Jaudon, Henry S.
• Application Number:
  US05/593,483
• Time in Patent Office: 526 Days
• Field of Search: 139/12, 139/13, 139/29, 74/567, 74/568 R, 74/568 FS, 74/568 M
• US Class Current: 139/436
• CPC Class Codes: D03D 47/265 Beat-up mechanisms D03D47/263 takes precedence

Abstract

Shaft arrangement for the swinging of reed teeth in a wave-type loom in which at least one lubricating groove extends the length of the shaft that drives the swinging of the reed teeth.

Claims

1. Shaft arrangement on a traveling wave loom for the pivoting of the reed teeth during the operation of the loom in which reed teeth are formed of elongated thin blades, the wide sides of which are perpendicular to a helically profiled contracting surface of a rotating screw shaft of said shaft arrangement and one edge of each abuts against the surface of said shaft, at least one lubricating groove extending the length of said shaft for supplying lubricant between the contacting surfaces of said surface and said one edge abutting against said surface and a lubricant holder means which is impregnated with a lubricant being contained in said groove, said groove following the profile of said shaft so as to always be forward of the point of maximum pressure between said surface and said one edge.

2. The shaft arrangement according to claim 1 in which the shaft about which the reed teeth pivot has at least two grooves which extend parallel to the shaft axis and are arranged with rotational symmetry with respect to the latter.

3. The shaft arrangement according to claim 1 in which the lubricant is substantially nonvolatile and chemically stable.

4. The shaft arrangement according to claim 1 in which the lubricant is in the form of a grease.

5. The shaft arrangement according to claim 1 in which the lubricant contains natural wax and the surface of the shaft is formed from polyoxymethylene-type plastic.

6. The shaft arrangement according to claim 1 in which the lubricant contains paraffin wax and the surface of the shaft is formed from polyoxymethylene-type plastic.

7. The shaft arrangement according to claim 1 in which the lubricant holder means is formed of a textile braid.

8. The shaft arrangement according to claim 1 in which the lubricant holder means has a relatively dense surface and consists of relatively wear-resistant material.

9. The shaft arrangement according to claim 1 in which the groove is open below the lubricant holder means towards at least one interconnected storage space for containing a supply of lubricant.

10. The shaft arrangement according to claim 9 in which the groove is of rectangular cross-section and along its bottom surface there extends a second groove serving as lubricant storage space which second groove is narrower than said first groove.

11. The shaft arrangement according to claim 9 in which hollow spaces are provided at regular distances apart from each other serving as lubricant storage spaces along the groove from the bottom surface of the groove towards the inside of the shaft.