US3727907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cloth feeding and spreading mechanism for cloth spreading machine
Assignee: Cutters Machine Co Inc
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Filing: 1970-09-21
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Granted: 1973-04-17
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Expires: 1990-09-21
Abstract
Abstract A spreading mechanism for a cloth spreading machine incorporating a pair of pivotally supported depending opposed tuck blades for cooperation with a conventional catcher mechanism in such a manner that the leading tuck blade is elevated by the catcher to swing away from the trailing tuck blade. Each tuck blade is provided with a link member and a latching member so that when the leading tuck blade is swung upward away from the trailing tuck blade, the latch members engage the opposing link members to latch the trailing tuck blade in its spreading position, while the leading tuck blade is latched in its elevated non-spreading position. A cloth feed mechanism for the spreading machine including a positively driven cloth feed roll, a first drive means for driving the feed roll at a normal speed related to the movement of the machine over a spreading table; a second drive means responsive to the cloth tension for driving the feed roll at a second speed faster than the normal speed; and a third drive means responsive to the end-folding position of the machine for driving the feed roll at a third speed faster than the first speed.
Inventors
- 👤 T Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:51
CPC Classifications
A; A41; A41H; A41H43/00; A41H43/005
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
285 words
In a cloth spreading machine including a carriage frame adapted for relative longitudinal reciprocal movement in a path over a spreading table, and a cloth supply mounted on said carriage frame, a cloth feeding and spreading mechanism comprising: a. a spreader frame mounted on said carriage frame for vertical reciprocal movement, b. at least one elongated tuck blade having a spreading edge, c. means mounting said tuck blade transversely of said reciprocating path on said spreader frame for movement between a normal spreading position in which said spreading edge extends adjacent to said spreading table, and a tension position spaced above said spreading position, d. a cloth feed roll rotatably mounted on said carriage frame for feeding cloth from said supply to said spreader frame and across the spreading edge of said tuck blade, e. mEans for driving said feed roll at different speeds including a normal speed related to the speed of said carriage frame relative to said table, f. a sensing device on said spreader frame responsive to the position of said tuck blade relative to said spreader frame, g. said sensing device being operatively connected to said driving means to drive said feed roll at said normal speed when said tuck blade is in said normal spreading position, and to drive said feed roll at a faster speed when said tuck blade is moved to said tension position by excessive tension in the cloth across and engaging said spreading edge, and h. elevator means for automatically elevating said spreader frame to maintain said tuck blade a substantially uniform distance above the top layer of cloth on said table while in said spreading position as said carriage frame moves relatively over said table.
Claim 2
Dependent Claim
285 words
In a cloth spreading machine including a carriage frame adapted for relative longitudinal reciprocal movement in a path over a spreading table, and a cloth supply mounted on said carriage frame, a cloth feeding and spreading mechanism comprising: a. a spreader frame mounted on said carriage frame for vertical reciprocal movement, b. at least one elongated tuck blade having a spreading edge, c. means mounting said tuck blade transversely of said reciprocating path on said spreader frame for movement between a normal spreading position in which said spreading edge extends adjacent to said spreading table, and a tension position spaced above said spreading position, d. a cloth feed roll rotatably mounted on said carriage frame for feeding cloth from said supply to said spreader frame and across the spreading edge of said tuck blade, e. mEans for driving said feed roll at different speeds including a normal speed related to the speed of said carriage frame relative to said table, f. a sensing device on said spreader frame responsive to the position of said tuck blade relative to said spreader frame, g. said sensing device being operatively connected to said driving means to drive said feed roll at said normal speed when said tuck blade is in said normal spreading position, and to drive said feed roll at a faster speed when said tuck blade is moved to said tension position by excessive tension in the cloth across and engaging said spreading edge, and h. elevator means for automatically elevating said spreader frame to maintain said tuck blade a substantially uniform distance above the top layer of cloth on said table while in said spreading position as said carriage frame moves relatively over said table.
Claim 3
Dependent Claim
40 words
The invention according to claim 1 in which said means for driving said feed roll comprises electrical driving means, said sensing device comprising electrical switch means adjacent said tuck blade mounting means, actuable by the movement of said tuck blade.
Claim 4
Dependent Claim
72 words
The invention according to claim 1 in which said driving means comprises first drive means for driving said feed roll at said normal speed, and second drive means for overriding said first drive means to drive said roll at said faster speed than said normal speed, said sensing device being operatively connected to said second drive means to actuate said second drive means when said tuck blade is in said tension position.
Claim 5
Dependent Claim
48 words
The invention according to claim 1 in which said means for mounting said tuck blade on said spreader frame comprises a leg fixed to said tuck blade, and means pivotally supporting said leg on said spreader frame for swinging movement between said spreading position and said tension position.
Claim 6
Dependent Claim
51 words
The invention according to claim 4 in which said means for driving said feed roll is electrically operated, and said sensing device comprises an electrical switch mounted on said spreader frame and having a switch actuator mounted in the path of said leg for actuation by the movement of said leg.
Claim 7
Dependent Claim
188 words
In a cloth spreading machine including a carriage frame adapted for relative longitudinal reciprocal movement in a path over a spreading table, a cloth supply mounted on said carriage frame, and a spreader device on said carriage frame for spreading cloth from said supply on said table, cloth feed means comprising: a. a cloth feed roll rotatably mounted on said carriage frame for feeding cloth from said supply to said spreader device, b. first drive means for driving said feed roll at a normal speed related to the speed of said carriage over said table, c. second drive means for overriding said first drive means to drive said roll at a second speed faster than said normal speed, d. means responsive to the tension in said cloth fed to said spreader device for actuating said second drive means, e. third drive means for overriding said first and second drive means to drive said roll at a third speed faster than said second speed, f. means responsive to the position of said carriage frame adjacent the end of said path to actuate said third drive means to overfeed cloth.
Claim 8
Dependent Claim
188 words
In a cloth spreading machine including a carriage frame adapted for relative longitudinal reciprocal movement in a path over a spreading table, a cloth supply mounted on said carriage frame, and a spreader device on said carriage frame for spreading cloth from said supply on said table, cloth feed means comprising: a. a cloth feed roll rotatably mounted on said carriage frame for feeding cloth from said supply to said spreader device, b. first drive means for driving said feed roll at a normal speed related to the speed of said carriage over said table, c. second drive means for overriding said first drive means to drive said roll at a second speed faster than said normal speed, d. means responsive to the tension in said cloth fed to said spreader device for actuating said second drive means, e. third drive means for overriding said first and second drive means to drive said roll at a third speed faster than said second speed, f. means responsive to the position of said carriage frame adjacent the end of said path to actuate said third drive means to overfeed cloth.
Claim 9
Dependent Claim
128 words
The invention according to claim 6 in which said first drive means comprises a feed roll shaft supporting said feed roll, motive means for driving said carriage frame, first transmission means including a first overriding clutch coupling said motive means to said feed roll shaft, said second drive means comprising second transmission means including first means for selectively coupling said motive means to said feed roll shaft to drive said shaft at said second speed when said second transmission means is coupled, said tension responsive means comprising a sensing device operatively connected to said first coupling means, said third drive means including third transmission means including second means for selectively COUPLING said motive means to said feed shaft, and a second overriding clutch in said second transmission means.
Claim 10
Dependent Claim
39 words
The invention according to claim 7 in which said first and second selective coupling means comprise electromagnetic clutches, said sensing device comprises an electrical switch, and said position responsive means comprises an electrical switch means on said carriage frame.
Claim 11
Dependent Claim
76 words
The invention according to claim 7 in which said first transmission means comprises a first sprocket mounted on said first overriding clutch, said second transmission means comprises a second sprocket mounted on said second overriding clutch, and said third transmission means comprises a third sprocket, said sprockets driving chains in each of said corresponding transmissions, so that the speed of the feed roll shaft is proportional to the diameters of the first, second or third sprockets.
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) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |