Patent US3586337A successfully refreshed from Google Patents.
US3586337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic soundhead mounting for dictating machines
Assignee: Dictaphone International AG
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Filing: 1969-02-12
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Granted: 1971-06-22
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Expires: 1989-02-12
Abstract
Abstract An arrangement for mounting a soundhead in a recording and reproducing device such as a dictating machine. The soundhead contacts a sheet or belt-type recording medium which is circularly arced about a cylinder for guiding the medium. The arrangement includes a pivotal mount for the soundhead and a support arm which is also pivotably mounted and contacts the recording medium. The support arm advantageously extends from the same pivot as used for the soundhead. This bearing arrangement provides for the easy, proper and simplified mounting of the soundhead.
Inventors
- 👤 Kurt Guttinger
- 👤 Helmuth Strang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:16
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/58
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
206 words
In a dictating machine having a cylinder for driving a recording medium which is circularly arced thereabout, a soundhead and a soundhead carriage mounted for displacement along a guide parallel to the longitudinal axis of said cylinder and operably engaged with a drive mechanism for moving said carriage along said guide, said soundhead carriage comprising, a frame rotatably mounted on said guide for movement between first and second positions to selectively engage said frame and said drive mechanism at said first positions, a stirrup pivotally mounted on said frame along a first axis parallel to said guide, said soundhead being pivotally mounted on said stirrup along a second axis parallel to said guide, a support arm operably connected to said soundhead for pivotal movement therewith and having a surface thereon for contacting said medium, said soundhead and said surface on said support arm being positioned to contact said medium on opposite sides respectively of a plane passing through the longitudinal axis of said cylinder and said second axis, and means for moving said frame from said first position to said second position and for pivoting said stirrup about said first axis to move said soundhead and said support arm surface out of contact with said medium.
Claim 2
Dependent Claim
206 words
In a dictating machine having a cylinder for driving a recording medium which is circularly arced thereabout, a soundhead and a soundhead carriage mounted for displacement along a guide parallel to the longitudinal axis of said cylinder and operably engaged with a drive mechanism for moving said carriage along said guide, said soundhead carriage comprising, a frame rotatably mounted on said guide for movement between first and second positions to selectively engage said frame and said drive mechanism at said first positions, a stirrup pivotally mounted on said frame along a first axis parallel to said guide, said soundhead being pivotally mounted on said stirrup along a second axis parallel to said guide, a support arm operably connected to said soundhead for pivotal movement therewith and having a surface thereon for contacting said medium, said soundhead and said surface on said support arm being positioned to contact said medium on opposite sides respectively of a plane passing through the longitudinal axis of said cylinder and said second axis, and means for moving said frame from said first position to said second position and for pivoting said stirrup about said first axis to move said soundhead and said support arm surface out of contact with said medium.
Claim 3
Dependent Claim
24 words
A sound carriage as in claim 1 wherein said means for moving said frame comprises a depressable key member pivotally mounted on said frame.
Claim 4
Dependent Claim
36 words
A soundhead carriage as in claim 1 wherein said contacting surface on said support arm and the point of contact of said soundhead with said medium are arranged in a plane perpendicular to said second axis.
Claim 5
Dependent Claim
19 words
A soundhead carriage as in claim 1 wherein the contact surface of said support arm is a beaded surface.
Claim 6
Dependent Claim
22 words
A soundhead carriage as in claim 1 including means mounted on said support arm for cleaning the surface of said recording medium.
Claim 7
Dependent Claim
35 words
A soundhead carriage as in claim 1 including spring means operably engaged between said frame and said stirrup for biasing said stirrup about said first axis and urging said soundhead into engagement with said medium.
Claim 8
Dependent Claim
55 words
A soundhead carriage as in claim 1 wherein said support arm includes an extension which extends away from said cylinder on the opposite side of said second axis from said surface and said frame includes spring means operably connected between said extension and said frame for biasing said soundhead into contact with said recording medium.
Claim 9
Dependent Claim
40 words
A soundhead carriage as in claim 7 wherein said extension has a plurality of openings therein arranged in a row, said spring means being selectively engageable with each of said openings to selectively vary the tension of said spring means.
Claim 10
Dependent Claim
66 words
A soundhead carriage as in claim 8 wherein said stirrup includes a crossbar extending parallel to and in spaced relation from said guide and said means for moving said frames includes a drive member operably connected to said crossbar whereby said stirrup is pivoted about said first axis when said means for moving is operated to move said frame from its first to its second position.
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) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |