Patent US3593558A successfully refreshed from Google Patents.
US3593558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Payoff reel controller
Assignee: FENN Manufacturing Co
•
Filing: 1969-07-24
•
Granted: 1971-07-20
•
Expires: 1989-07-24
Abstract
Abstract A drawing block having a die box, a rotatable block for drawing stock through the die box, and a motorized payoff reel for feeding stock in a generally arcuate path to the die box and having a sensing rotor mounted for sensing inward movement of the arcuate stock feed path. A pair of variable resistors are connected in series with the field of the payoff reel drive motor and a switch operated by a speed-sensitive actuator rotated by the sensing rotor provides for selectively shunting one of the variable resistors to increase the motor speed when the sensing rotor is engaged and rotated by the stock.
Inventors
- 👤 Alexander F Sperduti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:11
CPC Classifications
B; B21; B21C; B21C47/00; B21C47/34; B21C1/00; B21C1/02; B65; B65H; B65H54/00; B65H54/76; B65H54/80; B65H54/82
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
292 words
In a payoff reel for paying off stock from a coil thereof to associated apparatus comprising a rotatable coil support, a variable speed electric motor connected for rotating the coil support for paying out stock from a coil supported thereon to said apparatus along an arcuate path, and motor control means for controlling the motor speed for paying out stock at a rate according to the rate of feed to the apparatus, the improvement wherein the motor control means comprises first control means for establishing a base motor speed providing a base rate of payout with an introduced error in a controlled direction, and second control means operable for changing the motor speed to change the rate of payout in the opposite direction by an amount at least equal to said introduced error, a sensing rotor mounted adjacent said arcuate path and such that upon movement of the path due to said introduced error the rotor is engaged by the stock and is rotated thereby, and a controller driven by the sensing rotor and adapted to operate the second control means when the sensing rotor reaches a predetermined rotational speed. 3. In the payoff reel of claim 1 wherein the first control means establishes a base motor speed providing an introduced error in the rate of payout in the direction toward a lower rate of payout and wherein the second control means is operable to increase the motor speed to increase the rate of payout by an amount greater than said introduced error. 3 In the payoff reel of claim 1 wherein the second control means is operable to change the motor speed to change the rate of payout in said opposite direction by an amount substantially greater than said introduced error.
Claim 2
Dependent Claim
39 words
In the payoff reel of claim 1 wherein the first and second control means comprises first and second variable resistor means independently adjustable for establishing the base motor speed and the amount of said change in the motor speed.
Claim 3
Dependent Claim
94 words
In the payoff reel of claim 1 wherein the variable speed motor has a shunt wound field, wherein the first control means comprises first variable resistor means connected in series with the motor field, and wherein the second control means comprises second variable resistor means connected in series with the first resistor means and the shunt wound field and switch means connected in parallel with the second variable resistor means and operable when closed to shunt the second variable resistor means, and wherein the controller is operable to open and close the switch means.
Claim 4
Dependent Claim
32 words
In the payoff reel of claim 1 wherein the second control means provides for changing the motor speed to rate of payout by at least 10 percent more than the introduced error.
Claim 5
Dependent Claim
54 words
In the payoff reel of claim 6 wherein the first control means establishes a base motor speed providing a base rate of payout with at least a 10 percent introduced error and wherein the second control means provides for changing the motor speed for changing the rate of payout by at least 20 percent.
Claim 6
Dependent Claim
287 words
In a drawing block comprising a drawing die unit; a payoff reel having a rotatable coil support for paying off stock from a coil thereof to the drawing die unit, a first variable speed electric motor connected for rotating the coil support, and first motor control means for controlling the speed of the first motor; a rotatable block for drawing stock through the die unit, a second electric motor connected for driving the rotatable block, and second motor control means for operating the second motor at substantially constant speed, the coil support and die unit being relatively located such that stock is adapted to be paid-out to the drawing die unit via an arcuate path determined by the relative raTes of payout of stock from the reel and feed of stock through the drawing die unit, the improvement wherein the first motor control means comprises first settable control means adapted to be set for establishing a base motor speed providing a base rate of payout which differs by an introduced error in a controlled direction from a nominal rate of feed corresponding to the speed of the block, second settable control means adapted to be set for changing the base speed of said first motor to change the rate of payout by an amount sufficient to more than overcome said introduced error, a sensing rotor mounted adjacent said arcuate path and such that upon movement of the path due to said introduced error the rotor is engaged by the stock and is rotated thereby, and a controller driven by the sensing rotor adapted to operate the second settable control means to change the speed of the first motor when the sensing rotor reaches a predetermined rotational speed.
Claim 7
Dependent Claim
287 words
In a drawing block comprising a drawing die unit; a payoff reel having a rotatable coil support for paying off stock from a coil thereof to the drawing die unit, a first variable speed electric motor connected for rotating the coil support, and first motor control means for controlling the speed of the first motor; a rotatable block for drawing stock through the die unit, a second electric motor connected for driving the rotatable block, and second motor control means for operating the second motor at substantially constant speed, the coil support and die unit being relatively located such that stock is adapted to be paid-out to the drawing die unit via an arcuate path determined by the relative raTes of payout of stock from the reel and feed of stock through the drawing die unit, the improvement wherein the first motor control means comprises first settable control means adapted to be set for establishing a base motor speed providing a base rate of payout which differs by an introduced error in a controlled direction from a nominal rate of feed corresponding to the speed of the block, second settable control means adapted to be set for changing the base speed of said first motor to change the rate of payout by an amount sufficient to more than overcome said introduced error, a sensing rotor mounted adjacent said arcuate path and such that upon movement of the path due to said introduced error the rotor is engaged by the stock and is rotated thereby, and a controller driven by the sensing rotor adapted to operate the second settable control means to change the speed of the first motor when the sensing rotor reaches a predetermined rotational speed.
Claim 8
Dependent Claim
57 words
In the drawing block of claim 8 wherein the first and second settable control means comprise first and second variable resistor means connected to the first motor for controlling the speed thereof and settable to establish said base speed of the first motor and the amount of said change in the base speed of the first motor.
Claim 9
Dependent Claim
39 words
In the payoff reel of claim 1 wherein the first and second control means comprises first and second variable resistor means independently adjustable for establishing the base motor speed and the amount of said change in the motor speed.
Claim 10
Dependent Claim
94 words
In the payoff reel of claim 1 wherein the variable speed motor has a shunt wound field, wherein the first control means comprises first variable resistor means connected in series with the motor field, and wherein the second control means comprises second variable resistor means connected in series with the first resistor means and the shunt wound field and switch means connected in parallel with the second variable resistor means and operable when closed to shunt the second variable resistor means, and wherein the controller is operable to open and close the switch means.
Claim 11
Dependent Claim
32 words
In the payoff reel of claim 1 wherein the second control means provides for changing the motor speed to rate of payout by at least 10 percent more than the introduced error.
Claim 12
Dependent Claim
54 words
In the payoff reel of claim 6 wherein the first control means establishes a base motor speed providing a base rate of payout with at least a 10 percent introduced error and wherein the second control means provides for changing the motor speed for changing the rate of payout by at least 20 percent.
Claim 13
Dependent Claim
287 words
In a drawing block comprising a drawing die unit; a payoff reel having a rotatable coil support for paying off stock from a coil thereof to the drawing die unit, a first variable speed electric motor connected for rotating the coil support, and first motor control means for controlling the speed of the first motor; a rotatable block for drawing stock through the die unit, a second electric motor connected for driving the rotatable block, and second motor control means for operating the second motor at substantially constant speed, the coil support and die unit being relatively located such that stock is adapted to be paid-out to the drawing die unit via an arcuate path determined by the relative raTes of payout of stock from the reel and feed of stock through the drawing die unit, the improvement wherein the first motor control means comprises first settable control means adapted to be set for establishing a base motor speed providing a base rate of payout which differs by an introduced error in a controlled direction from a nominal rate of feed corresponding to the speed of the block, second settable control means adapted to be set for changing the base speed of said first motor to change the rate of payout by an amount sufficient to more than overcome said introduced error, a sensing rotor mounted adjacent said arcuate path and such that upon movement of the path due to said introduced error the rotor is engaged by the stock and is rotated thereby, and a controller driven by the sensing rotor adapted to operate the second settable control means to change the speed of the first motor when the sensing rotor reaches a predetermined rotational speed.
Claim 14
Dependent Claim
287 words
In a drawing block comprising a drawing die unit; a payoff reel having a rotatable coil support for paying off stock from a coil thereof to the drawing die unit, a first variable speed electric motor connected for rotating the coil support, and first motor control means for controlling the speed of the first motor; a rotatable block for drawing stock through the die unit, a second electric motor connected for driving the rotatable block, and second motor control means for operating the second motor at substantially constant speed, the coil support and die unit being relatively located such that stock is adapted to be paid-out to the drawing die unit via an arcuate path determined by the relative raTes of payout of stock from the reel and feed of stock through the drawing die unit, the improvement wherein the first motor control means comprises first settable control means adapted to be set for establishing a base motor speed providing a base rate of payout which differs by an introduced error in a controlled direction from a nominal rate of feed corresponding to the speed of the block, second settable control means adapted to be set for changing the base speed of said first motor to change the rate of payout by an amount sufficient to more than overcome said introduced error, a sensing rotor mounted adjacent said arcuate path and such that upon movement of the path due to said introduced error the rotor is engaged by the stock and is rotated thereby, and a controller driven by the sensing rotor adapted to operate the second settable control means to change the speed of the first motor when the sensing rotor reaches a predetermined rotational speed.
Claim 15
Dependent Claim
57 words
In the drawing block of claim 8 wherein the first and second settable control means comprise first and second variable resistor means connected to the first motor for controlling the speed thereof and settable to establish said base speed of the first motor and the amount of said change in the base speed of the first motor.
References Cited (Backward Citations)
US2355321A
Cited
US808620A
Cited
US1599393A
Cited
US1915722A
Cited
US2266861A
Cited
US2417780A
Cited
US2491228A
Cited
US2664250A
Cited
US2928527A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |