Patent US2480013A successfully refreshed from Google Patents.
Patent US3645524A successfully refreshed from Google Patents.
US3645524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Edge alignment assembly for cloth-spreading machine
Assignee: Panther Machine Corp
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Filing: 1970-06-08
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Granted: 1972-02-29
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Expires: 1990-06-08
Abstract
Abstract In a turntable fabric spreading machine in which fabric is drawn from a supply roll mounted on a turntable structure and fed through the machine to be deposited in layers on a table surface, the turntable structure is mounted on a carriage for lateral movement thereon and is driven in such lateral movement by a reversible motor mounted beneath said turntable structure and cooperating with a chain extending across the width of said carriage, a photoelectric sensing member is mounted on the carriage for scanning the edge of the fabric feeding through the machine, and is operatively connected to the motor for energizing the same to shift the turntable structure and fabric roll automatically in response to the sensing of a deviation in the lateral position of the fabric edge. The sensing means is movably mounted on the carriage by a linkage manually operable to shift the sensing member to a retracted position when the fabric is to be initially threaded through the machine.
Inventors
- 👤 Harold H Grimm
- 👤 Ira Zuckerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:15
CPC Classifications
A; A41; A41H; A41H43/00; A41H43/005
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
219 words
In a fabric-spreading machine comprising a carriage movable back and forth over a table surface, a turntable section mouNted on said carriage and including a dolly mounted on said carriage for lateral movement thereon, a platform rotatably mounted on said dolly and having means for supporting a roll of fabric thereon, and means for feeding fabric from said roll and guiding said fabric through said carriage to the table surface, the improvement comprising reversible drive means for moving said dolly laterally of said carriage whereby to shift the position of said roll of fabric relative to said carriage, and means for scanning one edge of said fabric fed from said roll, said drive means including a reversible motor mounted on said dolly, a drive sprocket operatively connected to said motor, and a single length of chain having an end of said chain secured to each side of said carriage and extending across the width thereof, said drive sprocket meshing with said chain to moving said dolly laterally of said carriage when said motor is energized, said scanning means being operatively connected to said motor for energizing the latter in response to lateral deviation of said one fabric edge as said fabric feeds from said roll, whereby to shift said fabric roll in a direction opposite to said lateral deviation.
Claim 2
Dependent Claim
219 words
In a fabric-spreading machine comprising a carriage movable back and forth over a table surface, a turntable section mouNted on said carriage and including a dolly mounted on said carriage for lateral movement thereon, a platform rotatably mounted on said dolly and having means for supporting a roll of fabric thereon, and means for feeding fabric from said roll and guiding said fabric through said carriage to the table surface, the improvement comprising reversible drive means for moving said dolly laterally of said carriage whereby to shift the position of said roll of fabric relative to said carriage, and means for scanning one edge of said fabric fed from said roll, said drive means including a reversible motor mounted on said dolly, a drive sprocket operatively connected to said motor, and a single length of chain having an end of said chain secured to each side of said carriage and extending across the width thereof, said drive sprocket meshing with said chain to moving said dolly laterally of said carriage when said motor is energized, said scanning means being operatively connected to said motor for energizing the latter in response to lateral deviation of said one fabric edge as said fabric feeds from said roll, whereby to shift said fabric roll in a direction opposite to said lateral deviation.
Claim 3
Dependent Claim
50 words
A fabric-spreading machine according to claim 1 in which said motor is mounted on the under surface of said dolly and a pair of idler sprockets are mounted on said dolly on opposite sides of said drive sprocket, said chain extending beneath said idler sprockets and over said drive sprocket.
Claim 4
Dependent Claim
36 words
A fabric-spreading machine according to claim 1 in which said edge scanning means includes a scanning member having a pair of photoelectric cells, and a light source mounted on said carriage and facing said scanning member.
Claim 5
Dependent Claim
63 words
A fabric-spreading machine according to claim 3 in which said scanning member is movably mounted on said carriage for movement between an operative position in which it is closely spaced forwardly and faces said light source, and a retracted position in which it is spaced a substantial distance forwardly of said light source and is located below the level of said light source.
Claim 6
Dependent Claim
116 words
A fabric-spreading machine according to claim 4 which also includes a positive drive roller mounted on said carriage, an idler roller having an operative position located rearwardly of and closely spaced from said positive drive roller for guiding said fabric about said positive drive roller as the fabric is drawn from said roll, and a cam-guided linkage assembly mounting said idler roller in said operative position, said linkage assembly being selectively operable to move said idler roller to a retracted position spaced a substantial distance forwardly of said positive drive roller for feeding fabric between said rollers, said scanning member being mounted on said linkage assembly for movement thereby between its operative position and retracted position.
Claim 7
Dependent Claim
93 words
A fabric-spreading machine according to claim 5 in which said linkage assembly comprises a pair of spaced elongated arms carrying said idler roller therebetween at the front end thereof, a can slot on said carriage, cam followers on at least one of said arms in engagement with said cam slot, and manually operable drive means for moving said arms in a direction in which said cam followers move through said cam slot, said scanning member being mounted on the front end portion of one of said elongated arms proximate to said idler roller.
Claim 8
Dependent Claim
76 words
A fabric-spreading machine according to claim 6 in which said carriage includes a side frame having a flat upper surface and a rounded front extension thereon, said scanning member having a roller resting upon said flat upper surface in the operative position of said scanning member, said roller riding forwardly upon said upper surface and then downwardly around said rounded front extension when said scanning member is moved to its retracted position by said linkage assembly.
Claim 9
Dependent Claim
56 words
A fabric-spreading machine according to claim 7 in which said scanning member is mounted on said one elongated arm of said lInkage assembly by a single link pivotally connected at one end to said scanning member adjacent said roller, and pivotally connected at said its other end to the forward end portion of said one arm.
References Cited (Backward Citations)
US2737385A
Cited
US2980421A
Cited
US3033561A
Cited
US3181859A
Cited
US3222005A
Cited
US3400927A
Cited
US3563529A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |