Patent US3627199A successfully refreshed from Google Patents.
US3627199A
Expired / Lapsed
US
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Annealing time calculator
Assignee: LEE WILSON ENGINEERING Co Inc
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Filing: 1970-05-18
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Granted: 1971-12-14
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Expires: 1990-05-18
Abstract
Abstract A calculator for determining the minimum length of time to operate an annealing furnace, such as a hood or bell-type, to anneal a charge of coils of strip metal, some of which may have different sizes or weights, wherein a plurality of interrelated slide rule type scales cooperate to determine and indicate the minimum annealing time sought. Optionally, the calculator may have other scales, such as a scale to account for the difference between the temperature to be reached at the center of the coils and the temperature of the surrounding heating medium; or a scale to compensate for difference in types or efficiencies of furnaces, types of steel, and the like.
Inventors
- 👤 Robert R Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:03
CPC Classifications
G; G06; G06G; G06G1/00; G06G1/0005; G06G1/0026
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
661 words
A calculator comprising a plurality of interrelated scales cooperating to determine the length of time to operate an annealing furnace to anneal a charge of coils of strip metal at a predetermined temperature, wherein at least two of such coils are of different sizes or weights, said calculator including: a. a body member having a plurality of scales; b. a slide member having a slide section carried by the body member for relative movement with each of the body member scales; c. a first scale on the body member having spaced-apart edge portions, one edge portion having fixed pointing means associated therewith, and the other edge portion having indicia of weight values for individual coils of said charge; d. a first scale on a slide section of the slide member having two spaced-apart line portions relatively movable along the edge portions of said first body member scale for selective registry therewith, one line portion of said first slide section scale having indicia of coil width values and cooperating with that line portion of the first body member scale having pointing means; the other line portion of said first slide section scale having indicia values representing size factors and cooperating with that edge portion of the first body member scale having coil weight values, whereby registry of a selected coil width on said first slide section scale opposite said pointing means on said first body member scale indicates a size factor on said other line portion of said slide section opposite a selected coil weight on said other edge portion of the first body member scale; e. a second scale on the body member having spaced-apart edge portions, one edge portion having fixed pointing means associated therewith, and the other edge portion having indicia of temperature values representative of the furnace temperatures; f. a second scale on a slide section of the slide member having spaced-apart line portions relatively movable along the edge portions of said second body member scale for selective registry therewith, one line portion of said second slide section scale having indicia values representative of the total weight of the charge to be annealed and cooperating with that edge portion of the second body member scale having pointing means; the other line portion of said second slide section scale having indicia values representing weight factors and cooperating with that line portion of the second body member scale having temperature values, whereby registry of a selected total charge weight on said second slide section scale opposite said pointing means on said second body member scale indicates a weight factor on said other line portion of said slide section opposite a selected annealing temperature value for such total charge on the other edge portion of said second body member scale; g. a third scale on the body member having spaced-apart edge portions, one edge portion having indicia values of said size factors, and the other edge portion having indicia of weight values for the total charge; and h. a third scale on a slide section of the slide member having spaced-apart line portions relatively movable along the edge portions of said third body member scale for selected registry therewith, one line portion of said third slide section scale having indicia values of said weight factors and cooperating with that edge portion of the third body member scale having indicia of values of said size factors, the other line portion of said third slide section scale having indicia of time values and cooperating with that edge portion of the third body member scale having indicia of weight values for The total charge, whereby registry of a selected weight factor on said third slide section scale opposite a selected size factor on said third body member scale indicates an annealing time on said other line portion of said third slide section scale opposite a value on the other edge portion of said third body member scale representing the total weight of said charge.
Claim 2
Dependent Claim
661 words
A calculator comprising a plurality of interrelated scales cooperating to determine the length of time to operate an annealing furnace to anneal a charge of coils of strip metal at a predetermined temperature, wherein at least two of such coils are of different sizes or weights, said calculator including: a. a body member having a plurality of scales; b. a slide member having a slide section carried by the body member for relative movement with each of the body member scales; c. a first scale on the body member having spaced-apart edge portions, one edge portion having fixed pointing means associated therewith, and the other edge portion having indicia of weight values for individual coils of said charge; d. a first scale on a slide section of the slide member having two spaced-apart line portions relatively movable along the edge portions of said first body member scale for selective registry therewith, one line portion of said first slide section scale having indicia of coil width values and cooperating with that line portion of the first body member scale having pointing means; the other line portion of said first slide section scale having indicia values representing size factors and cooperating with that edge portion of the first body member scale having coil weight values, whereby registry of a selected coil width on said first slide section scale opposite said pointing means on said first body member scale indicates a size factor on said other line portion of said slide section opposite a selected coil weight on said other edge portion of the first body member scale; e. a second scale on the body member having spaced-apart edge portions, one edge portion having fixed pointing means associated therewith, and the other edge portion having indicia of temperature values representative of the furnace temperatures; f. a second scale on a slide section of the slide member having spaced-apart line portions relatively movable along the edge portions of said second body member scale for selective registry therewith, one line portion of said second slide section scale having indicia values representative of the total weight of the charge to be annealed and cooperating with that edge portion of the second body member scale having pointing means; the other line portion of said second slide section scale having indicia values representing weight factors and cooperating with that line portion of the second body member scale having temperature values, whereby registry of a selected total charge weight on said second slide section scale opposite said pointing means on said second body member scale indicates a weight factor on said other line portion of said slide section opposite a selected annealing temperature value for such total charge on the other edge portion of said second body member scale; g. a third scale on the body member having spaced-apart edge portions, one edge portion having indicia values of said size factors, and the other edge portion having indicia of weight values for the total charge; and h. a third scale on a slide section of the slide member having spaced-apart line portions relatively movable along the edge portions of said third body member scale for selected registry therewith, one line portion of said third slide section scale having indicia values of said weight factors and cooperating with that edge portion of the third body member scale having indicia of values of said size factors, the other line portion of said third slide section scale having indicia of time values and cooperating with that edge portion of the third body member scale having indicia of weight values for The total charge, whereby registry of a selected weight factor on said third slide section scale opposite a selected size factor on said third body member scale indicates an annealing time on said other line portion of said third slide section scale opposite a value on the other edge portion of said third body member scale representing the total weight of said charge.
Claim 3
Dependent Claim
57 words
The slide rule of claim 1 wherein said edge portion of the first scale of the body member having weight values, and both said line portions of the first scale of the slide section having coil widths values and size factors, respectively, have such values increasing in magnitude in the same direction with respect to said scales.
Claim 4
Dependent Claim
88 words
The slide rule of claim 2 wherein the units of said edge portion of the first scale of the body member having weight values, and the units of said line portion of the first scale of the slide section having size factors are uniformly spaced therealong, and the units of the line portion of the first scale of the slide section having coil width values decrease in linear spacing in the direction of increasing magnitude, said decreasing spacing being based on prior operating, annealing experience with said furnace.
Claim 5
Dependent Claim
74 words
The calculator of claim 1 wherein said edge portion of the second scale of the body member having temperature values, and said line portion of the second scale of the slide section having total charge weight values have such values increasing in magnitude in the same direction with respect to said scales, and said line portion of said second scale of the slide section having weight factors decrease in magnitude in the same direction.
Claim 6
Dependent Claim
42 words
The calculator of claim 4 wherein the units of said edge portion and of both of said line portions decrease in linear spacing in the direction of increasing magnitudes, said decreasing spacing being based on prior operating, annealing experience with said furnace.
Claim 7
Dependent Claim
84 words
The calculator of claim 1 wherein said edge portion of the third scale of the body member having weight values for the total charge, and both said line portions of the third scale of the slide section having weight factor values and time values, respectively, have such values increasing in magnitude in the same direction with respect to said scales, and said edge portion of the third scale of the body member having size factors has values decreasing in magnitude in said same direction.
Claim 8
Dependent Claim
53 words
The calculator of claim 6 wherein the units of both of said edge portions of the body member scale and both of said line portions of the slide section scale decrease in linear spacing in the direction of increasing magnitudes, said decreasing spacing being based on prior operating, annealing experience with said furnace.
Claim 9
Dependent Claim
249 words
The calculator of claim 1 having temperature value determining scales on the body member and slide member, wherein: a. the body member scale has spaced-apart edge portions, one edge portion having fixed pointing means associated therewith, and the other edge portion having indicia of temperature values representative of the temperature of a heating medium circulating in said furnace; b. the slide member has a slide section scale of spaced apart line portions relatively movable along the edge portions of the body member scale for selective registry therewith, one line portion having indicia of temperature values representing the maximum center-center temperature of the coils to be attained when the coils are placed in such heating medium and cooperating with that edge portion of the body member scale having the pointing means; the other line portion of the slide section scale having indicia of temperature values representing the differential between the temperature of said heating medium and said maximum center-center temperature of said coils and cooperating with that edge portion of the body member scale having temperature values of said heating medium, whereby registry of a maximum coil temperature on the slide section opposite the pointing means On the body member indicates the temperature differential on the slide section opposite a selected heating medium temperature on said other edge portion of said body member scale; and c. wherein the temperature values of said other edge portion of the second body member scale in claim 1 are calibrated in such temperature differentials.
Claim 10
Dependent Claim
77 words
The calculator of claim 8 wherein said edge portion of the body member scale having temperature values of the heating medium, and said line portion of the slide section scale having differential temperature values have such values increasing in magnitude in the same direction with respect to said scales, and said line portion of the slide section scale having maximum temperature values to be attained for the coils has values decreasing in magnitude in the same direction.
Claim 11
Dependent Claim
34 words
The calculator of claim 9 wherein the units of said edge portion of the body member scale and both of said line portions of the slide section scale are uniformly spaced along said scales.
Claim 12
Dependent Claim
225 words
The calculator of claim 1 having furnace performance adjusting scales on the body member and slide member for determining said length of time, wherein: a. the body member scale has spaced-apart edge portions, one edge portion having fixed pointing means associated therewith, and the other edge portion having indicia of performance values of said annealing furnace; and b. the slide member has a slide section scale of spaced-apart line portions relatively movable along the edge portions of said body member scale for selective registry therewith, one line portion having indicia of values of annealing times, as determined by said third scales of the body member and slide section, and cooperating with that edge portion of the body member scale having pointing means, and the second line portion of the performance adjusting scale of the slide section having indicia of values of adjusted annealing times and cooperating with that edge portion of the performance adjusting scale of the body member scale having values of annealing furnace performance, whereby registry of an annealing time on said line portion of the slide section opposite said pointing means on said edge portion of the body member scale indicates an adjusted annealing time on said other line portion of said slide section scale opposite a selected annealing furnace performance value on the other edge portion of the body member scale.
Claim 13
Dependent Claim
34 words
The calculator of claim 11 wherein said other edge portion of the body member has performance values of an annealing furnace expressed in percentage values based on the performance of a known, selected furnace.
Claim 14
Dependent Claim
64 words
The calculator of claim 11 wherein both of said line portions of the slide section scale having values of annealing times and adjusted annealing times, respectively, have such values increasing in magnitude in the same direction with respect to said scales, and said edge portion of the body member scale having values of furnace performance has values decreasing in magnitude in the same direction.
Claim 15
Dependent Claim
51 words
The calculator of claim 13 wherein the units of said edge portion of the body member scale and both of said line portions of the slide section scale decrease in linear spacing in the direction of increasing magnitudes, said decreasing spacing being based on prior operating, annealing experience with said furnace.
Claim 16
Dependent Claim
27 words
The calculator of claim 1 wherein said body member is a sleeve, and said slide member is telescopically mounted within the sleeve for relative longitudinal movement therewith.
Claim 17
Dependent Claim
45 words
The calculator of claim 1 wherein said body member has a substantially rectangular opening for each scale, the opposite longer sides of each opening defining the edge portions of a scale, and a cooperating scale of the slide member is movably disposed within each opening.
Claim 18
Dependent Claim
13 words
The calculator of claim 1 wherein said values are in the English system.
Claim 19
Dependent Claim
13 words
The calculator of claim 1 wherein said values are in the metric system.
Claim 20
Dependent Claim
31 words
The calculator of claiM 1 wherein said slide member comprises a plurality of individually operated, relatively slidable members each having a slide section cooperating with a scale of the body member.
Claim 21
Dependent Claim
29 words
The calculator of claim 1 wherein said slide member comprises a sheet member having a plurality of slide sections, each section cooperating with a scale of the body member.
Claim 22
Dependent Claim
60 words
The calculator of claim 1 wherein said body member comprises a sleeve having faces, each face having at least one opening defining a body member scale, and wherein said slide member is mounted for telescopic movement within the sleeve and has a slide section defining a slide member scale cooperating with an opening on the faces of said body member.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |