US3920193A — Winding apparatus with automatic changing of tube…

Claim 1

Independent Claim 238 words

A winding device for automatically changing tubes for takingup endless threads or the like, said winding device being provided with a thread traversing device for generating thread winding wraps, a thread deflecting device for lifting the thread off the thread traversing device, a thread holding device provided with a thread guiding device for guiding the thread in its lifted-off position during the change of the bobbin tube, and at least two driven bobbin chucks alternately brought into a bobbin or tube change position respectively, each of said bobbin chucks supporting one tube, a thread catching and cutting zone arranged adjacent to one end of the associated tube and rotating with such tube, said thread holding device being arranged such that the thread lifted off the thread traversing device is guided thereby in the immediate vicinity of the thread catching and cutting zone, the improvement comprising the provision of thread Shifting means for shifting the thread guided by the thread holding device in a first shifting phase from a position at the immediate vicinity of the thread catching and cutting zone through such zone and onto an end portion of the tube adjacent thereto, and which thread shifting means in a second phase shifts the thread over a predetermined distance on such tube for creating the reserve wraps, said thread shifting means shifting the thread at a higher shifting speed during the second phase than during the first phase.

Claim 2

Dependent Claim 238 words

A winding device for automatically changing tubes for takingup endless threads or the like, said winding device being provided with a thread traversing device for generating thread winding wraps, a thread deflecting device for lifting the thread off the thread traversing device, a thread holding device provided with a thread guiding device for guiding the thread in its lifted-off position during the change of the bobbin tube, and at least two driven bobbin chucks alternately brought into a bobbin or tube change position respectively, each of said bobbin chucks supporting one tube, a thread catching and cutting zone arranged adjacent to one end of the associated tube and rotating with such tube, said thread holding device being arranged such that the thread lifted off the thread traversing device is guided thereby in the immediate vicinity of the thread catching and cutting zone, the improvement comprising the provision of thread Shifting means for shifting the thread guided by the thread holding device in a first shifting phase from a position at the immediate vicinity of the thread catching and cutting zone through such zone and onto an end portion of the tube adjacent thereto, and which thread shifting means in a second phase shifts the thread over a predetermined distance on such tube for creating the reserve wraps, said thread shifting means shifting the thread at a higher shifting speed during the second phase than during the first phase.

Claim 3

Dependent Claim 113 words

The winding device as defined in claim 1, said thread shifting means comprising a drive element which can be moved substantially linearly in several steps and movable in a direction essentially parallel to the lengthwise axis of the associated bobbin chuck, said drive element being connected with the thread holding device, the distance covered by the thread holding device during the first step of the movement of the drive element corresponding to the first shifting phase of the shifting movement and the distance covered by the thread holding device during the second step of the movement of the drive element corresponding to the second shifting phase of the shifting movement of the thread.

Claim 4

Dependent Claim 38 words

The winding device as defined in claim 2, wherein the drive element which is moved in several steps comprises a rigidly mounted double-step pneumatic piston and cylinder means having a piston rod connected with the thread holding device.

Claim 5

Dependent Claim 89 words

The winding device as defined in claim 3, wherein said piston and cylinder means comprises an outer cylinder and an inner cylinder, said inner cylinder being movable as a piston, the stroke of which piston defined by said inner cylinder corresponds to the first shitfting step, a piston member equipped with a piston rod, said piston member being movable within the inner cylinder, the stroke of said piston member corresponding to the second shifting step, said piston rod of said piston member being connected with the thread holding device.

Claim 6

Dependent Claim 202 words

The winding device as defined in claim 1, wherein said thread shifting means comprises a substantially linearly movable drive element movable in a direction substantially parallel to the lengthwise axis of the associated bobbin chuck, said drive element being connected with the thread holding device, a first thread guide element provided with a thread guide notch for takingup the thread after the latter has moved over a distance corresponding to the first thread shifting step, means for rigidly mounting said first thread guide element, a second thread guide element connected with the thread holding device at a location between the drive element and the thread guiding device of the thread holding device, said second thread guide element being provided with a thread guide surface arranged at an inclination with regard to the direction of movement of the thread holding device such that said thread guide surface, during such time as the thread holding device moves over a distance corresponding to the second shifting step, shifts the thread along a side surface of said thread guide notch of the first thread guide element and immediately prior to completion of the second shifting step shifts the thread over an end of such side surface.

Claim 7

Dependent Claim 37 words

The winding device as defined in claim 5, wherein the rigidly mounted first thread guide element is arranged above the movably arranged second thread guide element with respect to the lengthwise axis of the associated bobbin chuck.

Claim 8

Independent Claim 150 words

A method for transferring a textile thread which is wound-up while traversing the thread during the bobbin change operation from a full bobbin to an empty bobbin sleeve and for applying reserve windings to the empty bobbin sleeve, comprising the steps of lifting the thread during the bobbin change operation out of a thread traversing mechanism and guiding such to the direct neighborhood of a thread catch- and cutting zone adjacent the empty bobbin sleeve, during a first displacement stage moving the thread from thE thread catch- and cutting zone to thereby separate the thread from the full bobbin and guiding the thread to the neighboring end of the empty bobbin sleeve, then further guiding the thread during a second displacement stage on the sleeve to thereby form a reserve winding, and wherein the thread in the second stage is displaced at a greater speed than in the first stage.

Claim 9

Independent Claim 150 words

A method for transferring a textile thread which is wound-up while traversing the thread during the bobbin change operation from a full bobbin to an empty bobbin sleeve and for applying reserve windings to the empty bobbin sleeve, comprising the steps of lifting the thread during the bobbin change operation out of a thread traversing mechanism and guiding such to the direct neighborhood of a thread catch- and cutting zone adjacent the empty bobbin sleeve, during a first displacement stage moving the thread from thE thread catch- and cutting zone to thereby separate the thread from the full bobbin and guiding the thread to the neighboring end of the empty bobbin sleeve, then further guiding the thread during a second displacement stage on the sleeve to thereby form a reserve winding, and wherein the thread in the second stage is displaced at a greater speed than in the first stage.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1978-11-17	1979-05-19	1979-11-18	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1982-11-17	1983-05-19	1983-11-18	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1986-11-17	1987-05-19	1987-11-18	$7700.00	Window Closed / Lapsed

Winding apparatus with automatic changing of tubes or the like

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