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US3735576A Expired / Lapsed US ⏱️ 0.0 years remaining

Spinning system

Assignee: Leesona Corp
•
Filing: 1971-04-30
•
Granted: 1973-05-29
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Expires: 1991-04-30
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Abstract

Abstract An automatic spinning system has at least one spinning frame with opposite banks of spinning stations. A tractor carries a tender capable of randomly servicing the spinning stations. The tractor is mounted for back and forth movement between opposite ends of a track above the banks of spinning stations. The tender is mounted on the tractor for swinging movement about the ends of the spinning frame from one of the banks of spinning stations to the other bank when the tractor is at either of the opposite ends of its track. Thus, the tender patrols the stations as it travels in one direction along a continuous path about the banks of spinning stations, and is capable of randomly servicing the spinning stations. Either a broken strand of yarn or a full bobbin at a station requiring servicing is sensed by operating mechanism for stopping the tender in servicing orientation with the station requiring servicing, whereupon the tender doffs the bobbin from the station spindle and donns an empty bobbin and starts the strand winding onto the empty bobbin. Empty bobbins are conveyed to the tender and filled bobbins are conveyed from the tender as they are doffed. If desired, the tender may be equipped with a system for ridding the spinning frame of lint.

Inventors

  • 👤 J Nelson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 13:44
CPC Classifications
D; D01; D01H; D01H15/00; D01H15/013

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 116 words
Apparatus for servicing opposite banks of strand processing stations positioned along a strand processing machine comprising, means forming a continuous looped path along said opposite banks of said strand processing stations and completely about said machine, tender means for servicing said stations, tractor means for moving said tender means proximate to each of said stations, motive means for reciprocating said tractor means along a predetermined path between opposite ends thereof to thereby move said tender means, pivot means connecting said tender means with said tractor means, and operating means for moving said tender means around an end of said machine on said pivot means when said tractor means is proximate an end of said predetermined path.
Claim 2
Dependent Claim 116 words
Apparatus for servicing opposite banks of strand processing stations positioned along a strand processing machine comprising, means forming a continuous looped path along said opposite banks of said strand processing stations and completely about said machine, tender means for servicing said stations, tractor means for moving said tender means proximate to each of said stations, motive means for reciprocating said tractor means along a predetermined path between opposite ends thereof to thereby move said tender means, pivot means connecting said tender means with said tractor means, and operating means for moving said tender means around an end of said machine on said pivot means when said tractor means is proximate an end of said predetermined path.
Claim 3
Dependent Claim 32 words
Apparatus as set forth in claim 1 wherein said tender means includes means for doffing and donning bobbins and starting said strand winding onto the donned bobbin at the station being serviced.
Claim 4
Dependent Claim 29 words
Apparatus as set forth in claim 2 including means for conveying bobbins to said tender means, said tender means including means for receiving said bobbins from said conveying means.
Claim 5
Dependent Claim 28 words
Apparatus as set forth in claim 2 including means for conveying bobbins from said tender means, said tender means including means for delivering bobbins to the conveying means.
Claim 6
Dependent Claim 28 words
Apparatus as set forth in claim 3 including means for conveying bobbins from said tender means, said tender means including means for delivering bobbins to said conveying means.
Claim 7
Dependent Claim 47 words
Apparatus as set forth in claim 5 wherein said tractor means is operable in response to said strand failing to be advanced at said station requiring servicing or to a full bobbin at said station requiring servicing to stop said tender means at said station requiring servicing.
Claim 8
Dependent Claim 75 words
Apparatus as set forth in claim 1 wherein said predetermined path is positioned above and intermediate said opposite banks of strand processing stations, bumper means positioned at each of the opposite ends of said path, said tractor means abutting against said bumper means when the tractor means reaches each end of said predetermined path, said bumper being operable to initiate movement of said operating means to move said tender around an end of said machine.

References Cited (Backward Citations)

US3411281A Cited
US3478504A Cited
US3398521A Cited
US3486319A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-05-28 1976-11-27 1977-05-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-05-28 1980-11-27 1981-05-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-05-28 1984-11-27 1985-05-29 $7700.00 Window Closed / Lapsed

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