Patent US3863823A successfully refreshed from Google Patents.
US3863823A
Expired / Lapsed
US
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Strip Stock Feeding Mechanism
Assignee: Allred Metal Stamping Works Inc
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Filing: 1973-09-04
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Granted: 1975-02-04
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Expires: 1993-09-04
Abstract
Abstract An apparatus for feeding a continuous strip of metal to a punch press for stamping on a die with the stroke of the feeding mechanism being uniform. A first pair of reciprocating, nonreversing rollers grip and advance the strip stock a precise distance. A second pair of rollers prevent retrogressive movement of the stock advanced by the reciprocating first pair of rollers. The first pair of rollers are reciprocated through a linkage from a rotatable member which, in turn, is driven from the press through a clutch mechanism. The length of the stroke is adjusted by varying the distance from the center of rotation of the rotating member to the location where the feed roll reciprocating linkage is connected to the rotating member.
Inventors
- 👤 Arthur L Allred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:31
CPC Classifications
B; B65; B65H; B65H20/00; B65H20/16; B65H20/18; B21; B21D; B21D43/00; B21D43/02; B21D43/04; B21D43/08; B21D43/09
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
109 words
Apparatus for feeding a continuous strip of material to a punch press comprising, a base, reciprocable means supported upon said base, means upon said reciprocable means for gripping and intermittently advancing said strip of material uniformly and accurately, means for preventing retrogressive movement of the strip material advanced by said gripping means, rotatable driven means mounted upon said base, drive means, including a clutch, selectively coupling said rotatable means with a press drive, adjustment means supported upon said rotatable means for selectively varying the stroke of said reciprocating means and the length of strip material fed, and means positively and directly coupling said adjustment means to said reciprocable means.
Claim 2
Dependent Claim
109 words
Apparatus for feeding a continuous strip of material to a punch press comprising, a base, reciprocable means supported upon said base, means upon said reciprocable means for gripping and intermittently advancing said strip of material uniformly and accurately, means for preventing retrogressive movement of the strip material advanced by said gripping means, rotatable driven means mounted upon said base, drive means, including a clutch, selectively coupling said rotatable means with a press drive, adjustment means supported upon said rotatable means for selectively varying the stroke of said reciprocating means and the length of strip material fed, and means positively and directly coupling said adjustment means to said reciprocable means.
Claim 3
Dependent Claim
38 words
Apparatus for feeding a continuous strip of material as recited in claim 1, wherein said intermittently gripping and advancing means includes a pair of cooperating rollers, each of said rollers being capable of rotation only in one direction.
Claim 4
Dependent Claim
37 words
Apparatus for feeding a continuous strip of material as recited in claim 2, wherein at least one of said rollers is eccentrically mounted and adjustable to accommodate strip material of various thicknesses between the pair of rollers.
Claim 5
Dependent Claim
40 words
Apparatus for feeding a continuous strip of material as recited in claim 2, wherein said means for preventing retrogressive movement of the advanced strip material comprises a second pair of cooperating rollers, each capable of rotation in one direction only.
Claim 6
Dependent Claim
51 words
Apparatus for feeding a continuous strip of material as recited in claim 1, wherein said rotatable driven means supports said adjustment means, said adjustment means including a member secured to said coupling means for varying the position of said member relative to the center of rotation of said rotatable driven means.
Claim 7
Dependent Claim
21 words
Apparatus for feeding a continuous strip of material as recited in claim 5, wherein said rotatable driven means includes a disk.
Claim 8
Dependent Claim
43 words
Apparatus for feeding a continuous strip of material as recited in claim 5, wherein said adjustment means member is slidably displaceable relative to said rotatable driven means, said adjustment means further including locking means for securing said displaceable member in a selected position.
Claim 9
Dependent Claim
44 words
Apparatus for feeding a continuous Strip of material as recited in claim 1, said clutch intermediate the press drive and said rotatable driven means including manual means for disengaging said clutch for permitting manual cycling of said reciprocable means without the press being cycled.
Claim 10
Dependent Claim
48 words
Apparatus for feeding a continuous strip of material as recited in claim 5, wherein said coupling means comprises a first link rigidly secured to said reciprocable means and a second link coupled to said adjustment means member on said rotatable driven means and coupled to said first link.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |