US3572583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slide rule for making patterns
Assignee: Individual
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Filing: 1968-10-28
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Granted: 1971-03-30
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Expires: 1988-10-28
Abstract
Abstract This disclosure provides a method and a tool for simplifying the art of pattern making while simultaneously increasing the accuracy of the patterns made. One embodiment of this tool is a slide rule (known as a ''''pattern rule'''') so constructed as to directly compute and display the dimensions required in a pattern layout. By inserting the known dimensions and requirements into one area of the pattern rule by physically moving a sliding rule member, the desired dimensions are displayed in another area of the rule.
Inventors
- 👤 Joseph E Hannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:20
CPC Classifications
G; G06; G06G; G06G1/00; G06G1/0005; G06G1/0026
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
265 words
In a pattern data slide rule, means for calculating true length lines of a circular fitting, comprising: a. a frame; b. a first fixed logarithmic scale in said frame having identified graduations indicative of said fitting diameter; c. a first movable scale in said frame adjacent said diameter scale and movable relative thereto and comprising identified graduations indicative of pattern line pair locations around the circumference of said fitting; the layout dimension of each pattern line pair location graduation on said scale being equal to the logarithm of that percentage of the total diameter of the fitting that is crossed by a chord connecting said pattern line pair; d. a second fixed logarithmic scale in said frame having identified graduations indicative of said true length pattern line; e. a second movable logarithmic scale in said frame adjacent and between said pattern line pair location scale and said true length pattern line scale, and movable relative to each of these scales, and comprising identified graduations indicative of a physical characteristic of the particular type of fitting for which the pattern line is being calculated and selected as a function of the configuration of the fitting; and f. means on said movable scales for aligning with each other and with the adjacent fixed scale to identify below the graduation of the physical characteristic the true length pattern line on said second fixed scale when said first movable scale is indexed to the fitting diameter of the first fixed scale, and said second movable scale is indexed to the pattern line pair location on said first movable scale.
Claim 2
Dependent Claim
265 words
In a pattern data slide rule, means for calculating true length lines of a circular fitting, comprising: a. a frame; b. a first fixed logarithmic scale in said frame having identified graduations indicative of said fitting diameter; c. a first movable scale in said frame adjacent said diameter scale and movable relative thereto and comprising identified graduations indicative of pattern line pair locations around the circumference of said fitting; the layout dimension of each pattern line pair location graduation on said scale being equal to the logarithm of that percentage of the total diameter of the fitting that is crossed by a chord connecting said pattern line pair; d. a second fixed logarithmic scale in said frame having identified graduations indicative of said true length pattern line; e. a second movable logarithmic scale in said frame adjacent and between said pattern line pair location scale and said true length pattern line scale, and movable relative to each of these scales, and comprising identified graduations indicative of a physical characteristic of the particular type of fitting for which the pattern line is being calculated and selected as a function of the configuration of the fitting; and f. means on said movable scales for aligning with each other and with the adjacent fixed scale to identify below the graduation of the physical characteristic the true length pattern line on said second fixed scale when said first movable scale is indexed to the fitting diameter of the first fixed scale, and said second movable scale is indexed to the pattern line pair location on said first movable scale.
Claim 3
Dependent Claim
21 words
A pattern data slide as in claim 1, wherein the identified graduations relate to the number of segments in the fitting.
Claim 4
Dependent Claim
35 words
A pattern data slide rule as in claim 2, wherein the layout dimension of said number of segments on said movable scale is equal to the logarithm tangent of the segment angle of the fitting.
Claim 5
Dependent Claim
21 words
A pattern data slide rule as in claim 1, wherein said identified graduations relate to the slope of a conical fitting.
Claim 6
Dependent Claim
25 words
A pattern data slide rule as in claim 1, wherein said identified graduations relate to the depth to the intersection line of a T fitting.
Claim 7
Dependent Claim
31 words
A pattern data slide rule as in claim 1, wherein said identified graduations relate to the height of a pattern line above the intersection line of at least two intersecting fittings.
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) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |