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US3648449A Expired / Lapsed US ⏱️ 0.0 years remaining

Spool holder for twisting machine or the like

Assignee: Hammel GmbH Zwirnerei und Spinnereimachinen
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Filing: 1970-05-04
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Granted: 1972-03-14
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Expires: 1990-05-04
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Abstract

Abstract An assembly of thread-dispensing units, mounted on a common spindle bank, include each a spindle with a rotating throwoff disk beneath a magnetically arrested tubular spool holder through which the thread of one or more spools is guided downwardly for passage through the disk hub whence it emerges generally radially to form a balloon enveloping the spool or spools. A housing with an upwardly diverging inner peripheral wall, of circular outline at the bottom and square outline at the top, surrounds the spool holder with sufficient clearance to remain out of contact with the ballooning thread while preventing any entanglement of threads from adjoining units in the case of a rupture.

Inventors

  • 👤 Aloys Greive

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 05:33
CPC Classifications
D; D01; D01H; D01H7/00; D01H7/02; D01H7/86; D01H1/00; D01H1/14; D01H1/42; D01H1/427

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 258 words
A thread-spinning machine with a plurality of dispensing units mounted in a row in a common spindle bank, comprising: an integral elongate structure supported on said bank, said structure being subdivided into longitudinally adjoining portions of substantially square outline forming respective housings for said units; a plurality of hollow rototable spindles rising centrally into said housings from said bank; a throwoff disk rigid with each spindle at the bottom of its housing; a tubular spool support carried on each spindle above said disk with all-around separation from the inner peripheral wall surface of the respective housing; guide means in each housing for drawing thread from a spool on said support and directing said thread downwardly therethrough along the axis thereof, said disk having a hollow hub accessible from the interior of the associated spindle for receiving said thread and a lateral orifice for the discharge of said thread along the underside of the disk; drive means for rotating said spindles along with their throwoff disks whereby said thread balloons about its spool on being drawn upwardly past the rim of said disk, said inner peripheral wall diverging upwardly from an annular gap around said disk to an extent sufficient to remain out of contact with the ballooning thread; magnetic retaining elements embedded in said structure at respective corners of said substantially square outline of said portions near the bottoms of said housings; and cooperating magnetic elements on the spool supports in said housings respectively confronting said retaining elements for preventing rotary entrainment of said supports by said spindles.
Claim 2
Dependent Claim 258 words
A thread-spinning machine with a plurality of dispensing units mounted in a row in a common spindle bank, comprising: an integral elongate structure supported on said bank, said structure being subdivided into longitudinally adjoining portions of substantially square outline forming respective housings for said units; a plurality of hollow rototable spindles rising centrally into said housings from said bank; a throwoff disk rigid with each spindle at the bottom of its housing; a tubular spool support carried on each spindle above said disk with all-around separation from the inner peripheral wall surface of the respective housing; guide means in each housing for drawing thread from a spool on said support and directing said thread downwardly therethrough along the axis thereof, said disk having a hollow hub accessible from the interior of the associated spindle for receiving said thread and a lateral orifice for the discharge of said thread along the underside of the disk; drive means for rotating said spindles along with their throwoff disks whereby said thread balloons about its spool on being drawn upwardly past the rim of said disk, said inner peripheral wall diverging upwardly from an annular gap around said disk to an extent sufficient to remain out of contact with the ballooning thread; magnetic retaining elements embedded in said structure at respective corners of said substantially square outline of said portions near the bottoms of said housings; and cooperating magnetic elements on the spool supports in said housings respectively confronting said retaining elements for preventing rotary entrainment of said supports by said spindles.
Claim 3
Dependent Claim 35 words
A machine as defined in claim 1 wherein each unit includes two pairs of said magnetic retaining elements and two confronting pairs of said cooperating elements disposed at the diagonals of said substantially square outline.
Claim 4
Dependent Claim 27 words
A machine as defined in claim 1 wherein said peripheral wall is of circular outline in the region of said disk and define therewith said annular gap.
Claim 5
Dependent Claim 27 words
A machine as defined in claim 3 wherein said peripheral wall is faired into a prismatic shape above the level of said disk and said retaining elements.
Claim 6
Dependent Claim 29 words
A machine as defined in claim 4 wherein the prism defined by said peripHeral wall has a square outline with an inscribed circle of larger diameter than said gap.
Claim 7
Dependent Claim 45 words
A machine as defined in claim 4 wherein a side of the prismatic peripheral wall between adjoining units is raised above the remainder of said housing and beyond the top of said support, the housings of two adjacent units being separated by said raised side.
Claim 8
Dependent Claim 23 words
A machine as defined in claim 1 wherein each of said cooperating magnetic elements is disposed within the contour of the respective disk.
Claim 9
Dependent Claim 41 words
A machine as defined in claim 7 wherein said support includes a cup with a base of substantially the diameter of said disk and a central post defining therewith an annular spool chamber, said cooperating elements being mounted in said base.

References Cited (Backward Citations)

US2380240A Cited
US3159962A Cited
US3368337A Cited
US3410074A Cited
US3374618A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-03-14 1975-09-13 1976-03-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-03-14 1979-09-13 1980-03-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-03-14 1983-09-13 1984-03-14 $7700.00 Window Closed / Lapsed

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