Patent US3908745A successfully refreshed from Google Patents.
US3908745A
Expired / Lapsed
US
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Method and means for producing filaments of uniform configuration
Assignee: Farley Inc
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Filing: 1974-06-21
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Granted: 1975-09-30
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Expires: 1994-06-21
Abstract
Abstract Apparatus and method are described for continuously withdrawing filaments, wire and the like of uniform configuration from a bath of molten material, solid at ambient temperature, by immersion of the periphery of a rotating disc therein wherein the depth of immersion of the disc in the molten bath is automatically maintained substantially constant, continuously, irrespective of changes in the level of the bath.
Inventors
- 👤 Thomas W Caldwell
- 👤 Richard A Garini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:11
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/005; B22D11/06; B22D11/0611; B22D11/0614
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
173 words
In a process for producing filaments of substantially uniform configuration from a bath of molten material solid at ambient temperature wherein thE periphery of a rotating disc is immersed in said molten bath and a temperature gradient is maintained between the periphery of the disc and the molten bath such that material is solidified on the peripheral portion of said disc immersed in said bath to form a filament thereon substantially equal in length to the immersed peripheral portion of said disc, which filament is thereafter removed therefrom the improvement comprising: forming filaments of consistently uniform configuration by immersing said disc in said molten bath to a predetermined depth, rotating said disc in said bath to continuously form and remove filaments therefrom and automatically maintaining the depth of immersion of said disc in said bath substantially constant, continuously, concomitantly with a change in the level of the bath by adjusting the effective density of said rotating disc such that said disc is suspended in said bath at predetermined depth by the buoyancy thereof.
Claim 2
Dependent Claim
173 words
In a process for producing filaments of substantially uniform configuration from a bath of molten material solid at ambient temperature wherein thE periphery of a rotating disc is immersed in said molten bath and a temperature gradient is maintained between the periphery of the disc and the molten bath such that material is solidified on the peripheral portion of said disc immersed in said bath to form a filament thereon substantially equal in length to the immersed peripheral portion of said disc, which filament is thereafter removed therefrom the improvement comprising: forming filaments of consistently uniform configuration by immersing said disc in said molten bath to a predetermined depth, rotating said disc in said bath to continuously form and remove filaments therefrom and automatically maintaining the depth of immersion of said disc in said bath substantially constant, continuously, concomitantly with a change in the level of the bath by adjusting the effective density of said rotating disc such that said disc is suspended in said bath at predetermined depth by the buoyancy thereof.
Claim 3
Dependent Claim
47 words
In a process for the production of solid filaments of uniform configuration from a bath of molten material according to claim 1 wherein the effective density of said disc is adjusted by counterbalancing the weight of said disc when immersed in said bath at said predetermined depth.
Claim 4
Dependent Claim
34 words
In a process for the production of solid filaments of uniform configuration from a bath of molten material according to claim 1 wherein any untoward vibration of said disc in said melt is dampened.
Claim 5
Dependent Claim
164 words
Apparatus for the production of filaments of uniform configuration from a bath of molten material solid at ambient temperatures comprising: a container-means for holding said molten material, a filament disc, means arranged to support said disc above said bath with a portion of the periphery of said disc immersed in said bath, means arranged to maintain a temperature gradient between the periphery of said disc and said bath whereby said molten material is formed as a filament on the peripheral portion of said disc immersed in said bath, and means mounted on said disc supporting means arranged to rotate said disc thereby to continuously form filaments thereon from the molten material in said bath, said disc supporting means comprising a rockable member arranged to rock in a plain substantially perpendicular to the plane of said bath of molten material thereby to automatically maintain said disc at a predetermined depth in said bath consistently and concomitantly with the lowering of the level of the bath.
Claim 6
Dependent Claim
164 words
Apparatus for the production of filaments of uniform configuration from a bath of molten material solid at ambient temperatures comprising: a container-means for holding said molten material, a filament disc, means arranged to support said disc above said bath with a portion of the periphery of said disc immersed in said bath, means arranged to maintain a temperature gradient between the periphery of said disc and said bath whereby said molten material is formed as a filament on the peripheral portion of said disc immersed in said bath, and means mounted on said disc supporting means arranged to rotate said disc thereby to continuously form filaments thereon from the molten material in said bath, said disc supporting means comprising a rockable member arranged to rock in a plain substantially perpendicular to the plane of said bath of molten material thereby to automatically maintain said disc at a predetermined depth in said bath consistently and concomitantly with the lowering of the level of the bath.
Claim 7
Dependent Claim
55 words
Apparatus for the production of filaments of substantially uniform configuration from a bath of molten material according to claim 4 wherein said rockable member is provided with counterbalance means arranged to adjust the effective density of said disc such that said disc is suspended in said bath at said predetermined level by the buoyancy thereof.
Claim 8
Dependent Claim
43 words
Apparatus for the production of filaments of substantially uniform configuration from a bath of molten material according to claim 5 wherein said rockable member is provided with dampening means arranged to minimize vibrations of the rockable member due to rotation of the disc.
Claim 9
Dependent Claim
50 words
Apparatus for the production of filaments of substantially uniform configuration from a bath of molten material according to claim 5 wherein said counterbalance means comprises an arm arranged to extend from the side of said rockable member opposite said disc, said arm having an adjustable counterweight at its rear extremity.
Claim 10
Dependent Claim
53 words
Apparatus for the production of filaments of substantially uniform configuration from a bath of molten material according to claim 7 wherein said counterbalance means comprises, in combination, an adjustable counterweight and a float said float secured to the side of said rockable member adjacent said disc and arranged to engage in said bath.
Claim 11
Dependent Claim
28 words
Apparatus for the production of filaments of substantially uniform configuration from a bath of molten material according to claim 8 wherein said float comprises a substantially cup-shaped member.
Claim 12
Dependent Claim
63 words
ApparatUs for the production of filaments of uniform configuration from a bath of molten material according to claim 4 wherein said disc is substantially solid and said temperature gradient means comprises a chamber constructed and arranged to enclose substantially all but a peripheral portion of said disc, and a tubular, disc-supporting and rotating drive shaft arranged to circulate a coolant through said chamber.
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) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |