US3924818A — Thread storage device

Claim 1

Independent Claim 121 words

A method for accumulating and feeding thread from a supply thereof to a processing station, comprising the steps of providing a rotating cylindrical storage member, initially passing said thread from the supply to the peripheral surface of said storage member on the peripheral edge of a conjointly rotating disc having an axis oblique to that of the storage member, arranging said disc with respect to said storage member so that its lateral face engages said passing thread urging it to wind on the peripheral surface of said storage member into a coil and thereafter urging said coil to move axially on the peripheral surface of said storage member and simultaneously withdrawing the thread from said storage member to said processing station.

Claim 2

Independent Claim 121 words

A method for accumulating and feeding thread from a supply thereof to a processing station, comprising the steps of providing a rotating cylindrical storage member, initially passing said thread from the supply to the peripheral surface of said storage member on the peripheral edge of a conjointly rotating disc having an axis oblique to that of the storage member, arranging said disc with respect to said storage member so that its lateral face engages said passing thread urging it to wind on the peripheral surface of said storage member into a coil and thereafter urging said coil to move axially on the peripheral surface of said storage member and simultaneously withdrawing the thread from said storage member to said processing station.

Claim 3

Dependent Claim 28 words

The method according to claim 1, wherein said storage member and said disc are rotated at a speed equal to the speed at which said thread is withdrawn.

Claim 4

Dependent Claim 167 words

Apparatus for the intermediate accumulation of thread being delivered from a supply thereof to a processing station comprising a disc rotatable about its central axis having a peripheral edge for receiving thread from said supply, a cylindrical storage member rotatable about its Central axis having a peripheral surface on which said thread is wound, said disc being arranged adjacent one edge of said storage member, having its axis of rotation inclined to and laterally offset from the axis of rotation of said storage member and its peripheral edge extending radially beyond at least a portion of the peripheral surface of said storage member, means for conjointly rotating said disc and said storage member, said peripheral edge having a lateral face adapted to urge said thread to wind about the peripheral surface of said storage member into a coil and to urge said coil to move axially along the peripheral surface of said storage member to the upper end of said member for withdrawal to said processing station.

Claim 5

Dependent Claim 167 words

Apparatus for the intermediate accumulation of thread being delivered from a supply thereof to a processing station comprising a disc rotatable about its central axis having a peripheral edge for receiving thread from said supply, a cylindrical storage member rotatable about its Central axis having a peripheral surface on which said thread is wound, said disc being arranged adjacent one edge of said storage member, having its axis of rotation inclined to and laterally offset from the axis of rotation of said storage member and its peripheral edge extending radially beyond at least a portion of the peripheral surface of said storage member, means for conjointly rotating said disc and said storage member, said peripheral edge having a lateral face adapted to urge said thread to wind about the peripheral surface of said storage member into a coil and to urge said coil to move axially along the peripheral surface of said storage member to the upper end of said member for withdrawal to said processing station.

Claim 6

Dependent Claim 32 words

The apparatus according to claim 3, wherein said thread is withdrawn from said storage member and means are provided for rotating said storage member and said disc at a speed equal thereto.

Claim 7

Dependent Claim 22 words

The apparatus according to claim 3, wherein said peripheral edge of said disc is provided with a groove for receiving said thread.

Claim 8

Dependent Claim 32 words

The apparatus according to claim 3, wherein said storage member and said disc are axially movable with respect to each other, in response to the winding of said thread into a coil.

Claim 9

Dependent Claim 30 words

The apparatus according to claim 6, including means for sensing the axial movement of said disc and storage member and in response thereto controlling the means for rotating the same.

Claim 10

Dependent Claim 44 words

The apparatus according to claim 3, wherein the means for rotating said storage member and said disc comprise an electric motor having a rotor and a stator, the rotor being connected to said disc and the stator being fixedly mounted within said storage member.

Claim 11

Dependent Claim 81 words

The apparatus according to claim 3, wherein said storage member is rotatably mounted about a fixed shaft, and said means for rotating said disc and storage member comprises an electric motor, the stator of which is mounted on said shaft within said storage means about an axis inclined with respect to and offset in relation to the axis of the shaft, said disc being mounted on the rotor of said motor in a plane perpendicular to the axis of said stator.

Claim 12

Dependent Claim 83 words

The apparatus according to claim 3, wherein said storage member comprises a drum mounted to rotate about a given axis, said drum being open at one end and provided with a plurality of longitudinal slots extending axially from said open end and said disc is mounted within said drum about an axis inclined with respect to and laterally offset from the axis of said drum, said disc having an outer periphery formed of a plurality of teeth extending respectively through said longitudinal slots.

Claim 13

Dependent Claim 26 words

The apparatus according to claim 10, wherein said drum is axially movable with respect to said disc in response to the winding of said thread thereon.

Claim 14

Dependent Claim 24 words

The apparatus according to claim 10, wherein said drum is provided with a conical take-off member for passing the thread to the processing station.

Claim 15

Dependent Claim 56 words

The apparatus according to claim 11, wherein the axially movable drum is held by a spring in one of its end positions, its axial movement taking place against and under the action of the spring, a switch member located adjacent said spring for providing switching pulses for the motor in response to movement of said spring.

Claim 16

Dependent Claim 40 words

The apparatus according to claim 13, wherein the drum is attached to a supporting rod which is carried so as to be axially movable in the shaft, which rod is held by said spring in one of its end positions.

Claim 17

Dependent Claim 46 words

The apparatus according to claim 14, including a support bracket and wherein the spring is a leaf spring fastened at one end to said support bracket and free at its other end, said holding rod being attached adjacent to the free end of said leaf spring.

Claim 18

Dependent Claim 31 words

The apparatus according to claim 15, wherein the leaf spring in the area between its support and the point of attachment of the holding rod is provided with an adjustable stop.

Claim 19

Dependent Claim 36 words

The apparatus according to claim 16, wHerein the switch is arranged adjacent said leaf spring within the zone of movement of the leaf spring so that it can be actuated on movement by said leaf spring.

Claim 20

Dependent Claim 28 words

The apparatus according to claim 14 including fastening means for fixedly attaching the shaft to said support bracket, said fastening means comprising the fastening for the leaf spring.

Claim 21

Dependent Claim 102 words

The apparatus according to claim 3 wherein the diameter of the disc and the diameter of the storage member and the inclination and lateral offset of the rotation axes of disc and storage member relative to one another are chosen such that the point of entry of the peripheral edge of said disc in the surface of the storage member, viewed in the axial direction of the storage member is closer to the other end of said storage member than that point on the surface of the storage member at which the teeth of the disc start to emerge from it again.

Claim 22

Dependent Claim 72 words

The apparatus according to claim 3, wherein the storage member and said disc are axially fixed with respect to each other, and said rotating means comprises an electric motor having a constant torque within a given speed range, the winding of the thread into an increasing coil on said storage member creating a drag on the rotation thereof causing a counter torque within said motor correspondingly reducing the speed of rotation thereof.

Claim 23

Dependent Claim 19 words

The apparatus according to claim 20, wherein said motor is operated at a voltage lower than its rated voltage.

Claim 24

Dependent Claim 176 words

Apparatus for the intermediate accumulation of thread being delivered from a supply thereof to a processing station comprising a supporting bracket, a hub having a central axis fixedly mounted on said support, a disc rotatable mounted about said hub concentric with the central axis thereof, a shaft fixed to said hub and extending along an axis oblique to and laterally offset from the axis of said hub, a cylindrical storage member rotatably mounted about said shaft, means for conjointly rotating said disc and said storage member, said storage member having a peripheral surface upon which said thread is wound, said disc having a peripheral edge for receiving thread from said supply and for passing said thread unto said peripheral surface of said storage member, the peripheral edge of said disc being adapted to urge said thread to wind about said storage member into a coil and to urge said coil to move axially along the peripheral surface of said storage member away from said disc to the other end thereof for withdrawal to said processing station.

Claim 25

Dependent Claim 176 words

Apparatus for the intermediate accumulation of thread being delivered from a supply thereof to a processing station comprising a supporting bracket, a hub having a central axis fixedly mounted on said support, a disc rotatable mounted about said hub concentric with the central axis thereof, a shaft fixed to said hub and extending along an axis oblique to and laterally offset from the axis of said hub, a cylindrical storage member rotatably mounted about said shaft, means for conjointly rotating said disc and said storage member, said storage member having a peripheral surface upon which said thread is wound, said disc having a peripheral edge for receiving thread from said supply and for passing said thread unto said peripheral surface of said storage member, the peripheral edge of said disc being adapted to urge said thread to wind about said storage member into a coil and to urge said coil to move axially along the peripheral surface of said storage member away from said disc to the other end thereof for withdrawal to said processing station.

Claim 26

Dependent Claim 68 words

The apparatus according to claim 22, wherein said storage member comprises a substantially hollow drum open at one end and provided with a plurality of longitudinal slots extending axially from said open end and said disc is mounted about said hub to lie within the open end of said drum, said disc having an outer periphery formed of a plurality of teeth extending respectively through said longitudinal slot.

Claim 27

Dependent Claim 38 words

The apparatus according to claim 23, wherein each of said teeth is provided with a groove on its outer end, the locus of which lie about the axis of rotation and form the peripheral edge of said disc.

Claim 28

Dependent Claim 38 words

The apparatus according to claim 23, wherein the means for rotating said storage member and said disc comprises an electric motor in which the storage member comprises the rotor thereof and includes a stator attached to said shaft.

Claim 29

Dependent Claim 68 words

The apparatus according to claim 25, wherein said storage member and said disc are axially fixed on said hub and shaft respectively and said motor has a constant torque within a given speed range, the winding of the thread into an increasing coil on said storage member creating a drag on the rotation thereof causing a counter torque within said motor correspondingly reducing the speed of rotation thereof.

Claim 30

Dependent Claim 20 words

The apparatus according to claim 26, wherein said motor is operated at a constant voltage lower than its rated voltage.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1978-12-08	1979-06-09	1979-12-09	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1982-12-08	1983-06-09	1983-12-09	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1986-12-08	1987-06-09	1987-12-09	$7700.00	Window Closed / Lapsed

Thread storage device

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