US3683504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pattern grading apparatus
Assignee: Individual
•
Filing: 1970-06-30
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Granted: 1972-08-15
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Expires: 1990-06-30
Abstract
Abstract A pattern grading machine includes a pair of lazy-tong linkages each mounting a row of spaced, parallel pattern-supporting bars for longitudinal sliding movement. A slotted positioning bar interconnects the pattern-supporting bars in each row and a manually movable control bar interconnects the positioning bars and the lazy-tong linkages for selective lateral spacing of said pattern-supporting bars through actuation of said lazy-tong linkages and relative longitudinal movement of said patternsupporting bars in a predetermined ratio through movement of said positioning bars.
Inventors
- 👤 Mikulas M Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:10
CPC Classifications
A; A41; A41H; A41H3/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
194 words
A pattern grading apparatus comprising a base member having a longitudinal guide, a lazy-tong linkage including a link pivot anchored to said base member and a transversely medially located follower engaging said guide to limit movement of said lazy-tong linkage to expansion and contraction in a first direction toward and away from said link pivot, a plurality of spaced sheet support bars mounted at spaced intervals on said lazy-tong linkage and individually slidable relative thereto in a second direction perpendicular to said first direction, a sheet gripping element mounted on each of said sheet support bars, a positioning member pivoted to said lazy-tong linkage at said anchored link pivot and provided with an elongated track, follower members mounted on each of said bars and slidably engaging said track for simultaneous sliding movement of said sheet support bars on said lazy-tong linkage in a predetermined ratio in response to pivoting movement of said positioning member, and a single control member connected to one of said sheet support bars and being manually movable in said first direction to vary the spacing between said sheet support bars, and in said second direction to pivot said positioning bar.
Claim 2
Dependent Claim
194 words
A pattern grading apparatus comprising a base member having a longitudinal guide, a lazy-tong linkage including a link pivot anchored to said base member and a transversely medially located follower engaging said guide to limit movement of said lazy-tong linkage to expansion and contraction in a first direction toward and away from said link pivot, a plurality of spaced sheet support bars mounted at spaced intervals on said lazy-tong linkage and individually slidable relative thereto in a second direction perpendicular to said first direction, a sheet gripping element mounted on each of said sheet support bars, a positioning member pivoted to said lazy-tong linkage at said anchored link pivot and provided with an elongated track, follower members mounted on each of said bars and slidably engaging said track for simultaneous sliding movement of said sheet support bars on said lazy-tong linkage in a predetermined ratio in response to pivoting movement of said positioning member, and a single control member connected to one of said sheet support bars and being manually movable in said first direction to vary the spacing between said sheet support bars, and in said second direction to pivot said positioning bar.
Claim 3
Dependent Claim
180 words
A pattern grading apparatus according to claim 1 in which said base member has a second longitudinal guide, a second lazy-tong linkage spaced from and aligned with said first lazy-tong linkage, said second lazy-tong linkage including a corresponding link pivot anchored to said base member and a transversely medially located follower engaging said second guide to limit movement of said second lazy-tong linkage to expansion and contraction in said first direction, a second plurality of spaced sheet support bars mounted on said second lazy-tong linkage for individual sliding movement relative thereto in said second direction and each mounting a sheet gripping element, a second positioning member pivoted to the anchored link pivot of said second lazy-tong linkage and provided with an elongated track, follower members mounted on said second plurality of sheet support bars and slidably engaging the track of said second positioning member, a cross link operatively pivotally connected between said positioning members to maintain said tracks mutually parallel, said control member extending between a pair of corresponding bars of said first and second plurality of sheet support bars.
Claim 4
Dependent Claim
45 words
The pattern grading apparatus of claim 2 including a relatively stationary programming member provided with a plurality of spaced indicia and a follower element carried by and movable with said control member and movable into selective registry with said indicia to correspondingly position said bars.
Claim 5
Dependent Claim
33 words
The pattern grading apparatus of claim 3 wherein said programming member comprises a plate having longitudinally and transversely spaced apertures formed therein and said follower element comprises a pin insertable into said apertures.
Claim 6
Dependent Claim
33 words
The pattern graDing apparatus of claim 3 wherein guide members are mounted on corresponding transversely aligned points on said lazy-tong linkages, said bars slidably engaging respective transversely aligned pairs of said guide members.
Claim 7
Dependent Claim
32 words
The pattern grading apparatus of claim 3 including a pair of longitudinally spaced bars affixed to said base member in transverse alignment with said lazy-tong anchoring pivots and mounting sheet support elements.
Claim 8
Dependent Claim
100 words
The pattern grading apparatus of claim 2 in which each of the bars of the first plurality of sheet support bars is paired with a corresponding bar of the second plurality of bars, the bars of each of said pairs being adapted to move to the same extent in said first and second directions, each of said pair of bars supporting a single sheet, one of which sheets is a master pattern, said bars moving said sheets relative to each other and to said master pattern to selected staggered grading positions in response to manual movement of said control member.
Claim 9
Dependent Claim
74 words
The pattern grading apparatus of claim 7 which also includes a stationary programming member comprising a plate affixed to said base member, said plate having longitudinally and transversely spaced apertures forward therein, and a follower element carried by and movable with said control member and including a pin selectively insertable into said apertures, said apertures being spaced from each other by distances corresponding to selected staggered grading positions of said sheets and master pattern.
References Cited (Backward Citations)
US2885784A
Cited
US3085340A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |