US3735223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-speed control apparatus for cloth spreading machine
Assignee: Cutters Machine Co Inc
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Filing: 1972-05-17
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Granted: 1973-05-22
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Expires: 1992-05-17
Abstract
Abstract An electrically driven and controlled cloth spreading machine including means for controlling the high and low speeds of the machine, and also for selectively controlling and presetting high speeds of the machine in its forward and reverse directions of movement.
Inventors
- 👤 J Fort
- 👤 C Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:57
CPC Classifications
B; B65; B65H; B65H45/00; B65H45/02; B65H45/06; B65H45/10; B65H45/101; B65H45/103; H; H02; H02P; H02P7/00; H02P7/03; H02P7/05
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
244 words
Speed control apparatus for a cloth spreading machine having a frame supported for longitudinal movement over a cloth-laying surface between reversing stations, a spreader unit to spread cloth in layers, and means for supplying cloth to the spreader unit, comprising: a. electrically energized motor drive means for moving said frame longitudinally of said surface, b. reversing switch means adapted to control said drive means to reverse the movement of said frame, when actuated, between forward and reverse directions, c. actuator means for actuating said reversing switch means at said reversing stations, d. first speed control means for energizing said drive means, when actuated, to move said frame at a first pre-set speed, e. second speed control means for energizing said drive means, when actuated, to move said frame at a second pre-set speed, f. means operatively coupling said reversing switch means to said first and second speed control means, g. selector switch means operable between a first position actuating said first speed control means and de-actuating said second speed control means regardless of the direction of frame movement, and a second position actuating said first speed control means and de-actuating said second speed control means when said reversing switch means is actuated to move said frame in said forward direction, and further in said second position de-actuating said first speed control means and actuating said second speed control means when said reversing switch means is actuated to move said frame in said reverse direction.
Claim 2
Dependent Claim
244 words
Speed control apparatus for a cloth spreading machine having a frame supported for longitudinal movement over a cloth-laying surface between reversing stations, a spreader unit to spread cloth in layers, and means for supplying cloth to the spreader unit, comprising: a. electrically energized motor drive means for moving said frame longitudinally of said surface, b. reversing switch means adapted to control said drive means to reverse the movement of said frame, when actuated, between forward and reverse directions, c. actuator means for actuating said reversing switch means at said reversing stations, d. first speed control means for energizing said drive means, when actuated, to move said frame at a first pre-set speed, e. second speed control means for energizing said drive means, when actuated, to move said frame at a second pre-set speed, f. means operatively coupling said reversing switch means to said first and second speed control means, g. selector switch means operable between a first position actuating said first speed control means and de-actuating said second speed control means regardless of the direction of frame movement, and a second position actuating said first speed control means and de-actuating said second speed control means when said reversing switch means is actuated to move said frame in said forward direction, and further in said second position de-actuating said first speed control means and actuating said second speed control means when said reversing switch means is actuated to move said frame in said reverse direction.
Claim 3
Dependent Claim
73 words
The invention according to claim 1 in which said first speed control means comprises a first speed control circuit and said second speed control means comprises a second speed control circuit, said reversing switch means comprising a reversing switch having a forward position closing said first speed control circuit and opening said second speed control circuit and a reverse position closing said second speed control circuit and opening said first speed control circuit.
Claim 4
Dependent Claim
71 words
The invention according to claim 2 in which said selector switch means comprises a selector switch in said second speed control circuit having a first position opening said second speed control circuit and closing said first speed control circuit regardless of whether said reversing switch is in said forward or reverse direction, and a second position closing said second speed control circuit when said reversing switch is in said reverse position.
Claim 5
Dependent Claim
29 words
The invention according to claim 2 in which said first speed control circuit includes a first adjustable potentiometer and said second speed control circuit includes a second adjustable potentiometer.
Claim 6
Dependent Claim
140 words
The invention according to claim 2 in which said first and second speed control circuits comprise high-speed control circuits, and further comprising a third low-speed coNtrol circuit for energizing said drive means, when closed, to move said frame at a low speed substantially lower than the high speeds produced by said first and second control circuits, a speed selector switch movable between a high position in series with said reversing switch to close one or the other of said first and second speed control circuits depending upon the position of said reversing switch, and a low-speed position opening both said first and second high-speed control circuits and closing said low-speed control circuit, and trip means for actuating said selector switch to move said selector switch from high position to low position while said frame is moving toward a reversing station.
Claim 7
Dependent Claim
26 words
The invention according to claim 5 in which said low-speed control circuit includes a third potentiometer pre-set at a value corresponding to a predetermined low speed.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |