US3586790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Correction system for dictating machine
Assignee: Dictaphone International AG
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Filing: 1968-12-20
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Granted: 1971-06-22
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Expires: 1988-12-20
Abstract
Abstract A correction system for a dictating machine having a soundhead carriage movable along the length of a cylinder which carries on its surface a magnetic recording medium of the belt or sheet type. The system includes a correction slide which can be placed in the path of the soundhead carriage as it advances along the cylinder. The correction slide has a switch adapted to be activated by the soundhead carriage which, when activated, changes the machine from its recording state to its reproducing state. This correction slide is used to prevent correct text from being mistakenly or carelessly erased or recorded over when making a correction.
Inventors
- 👤 Kurt Guttinger
- 👤 Willi Nyffenegger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:30
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/10; G11B27/34; G11B15/00; G11B15/02; G11B15/12; G11B21/00; G11B21/02; G11B21/08
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
146 words
A dictating machine for use with a magnetic recording medium, comprising, in combination, a driven cylinder for receiving the recording medium, a soundhead carriage mounted to reciprocate along a path of movement parallel to the a axis of the cylinder, a soundhead carried by said soundhead carriage, a control circuit operably connected to said machine for adjusting the operating state of the dictating machine, a correction slide slidably mounted in said path of movement of said soundhead carriage for movement between the soundhead carriage and one end of the cylinder, said correction slide being selectively movable independently of said soundhead carriage to positions between said soundhead and said one end of said cylinder, switch means carried by said correction slide and operably connected to said control circuit for switching said machine from recording to reproduction when said carriage is moved into engagement with said correction slide.
Claim 2
Dependent Claim
146 words
A dictating machine for use with a magnetic recording medium, comprising, in combination, a driven cylinder for receiving the recording medium, a soundhead carriage mounted to reciprocate along a path of movement parallel to the a axis of the cylinder, a soundhead carried by said soundhead carriage, a control circuit operably connected to said machine for adjusting the operating state of the dictating machine, a correction slide slidably mounted in said path of movement of said soundhead carriage for movement between the soundhead carriage and one end of the cylinder, said correction slide being selectively movable independently of said soundhead carriage to positions between said soundhead and said one end of said cylinder, switch means carried by said correction slide and operably connected to said control circuit for switching said machine from recording to reproduction when said carriage is moved into engagement with said correction slide.
Claim 3
Dependent Claim
36 words
A dictating machine as described in claim 1 wherein said correction slide is selectively displaced by said soundhead carriage when said carriage is engaged with said slide and advances towards said one end of said cylinder.
Claim 4
Dependent Claim
71 words
A dictating machine as described in claim 2 wherein said switch comprises a pair of normally open contacts, one of said contacts being fixed and the other of said contacts being flexible, said flexible contact moving into contact with said fixed contact when said soundhead carriage moves into engagement with said correction slide and said fixed contact defining a stop for the displacement of the correction slide by the soundhead carriage.
Claim 5
Dependent Claim
48 words
A dictating machine as described in claim 3 wherein said soundhead carriage and said correction slide each have a key having a finger support, said keys having opposing vertical side edges which are in close proximity to each other when said soundhead carriage is adjacent said correction slide.
Claim 6
Dependent Claim
23 words
A dictating machine as described in claim 4 wherein said soundhead carriage and said corrEction slide are positioned on a common guide member.
Claim 7
Dependent Claim
160 words
In a correction system for a dictating machine of the type using a magnetic recording medium and which has at least one motor-driven cylinder for receiving the recording medium, a soundhead carriage mounted for reciprocating movement along a path parallel to the axis of said cylinder, a soundhead for recording, reproducing and erasing carried by said soundhead carriage and a control circuit operably connected to said machine for adjusting the operating state of said dictating machine, the improvement comprising, a correction slide mounted in the path of movement of said soundhead carriage for movement between the soundhead carriage and one end of said cylinder, said correction slide being selectively movable independently of said soundhead carriage to positions between said soundhead carriage and said one end of said cylinder, switch means carried by said correction slide and connected to said control circuit for switching said machine from recording to reproduction when said carriage is moved into engagement with said correction slide.
Claim 8
Dependent Claim
160 words
In a correction system for a dictating machine of the type using a magnetic recording medium and which has at least one motor-driven cylinder for receiving the recording medium, a soundhead carriage mounted for reciprocating movement along a path parallel to the axis of said cylinder, a soundhead for recording, reproducing and erasing carried by said soundhead carriage and a control circuit operably connected to said machine for adjusting the operating state of said dictating machine, the improvement comprising, a correction slide mounted in the path of movement of said soundhead carriage for movement between the soundhead carriage and one end of said cylinder, said correction slide being selectively movable independently of said soundhead carriage to positions between said soundhead carriage and said one end of said cylinder, switch means carried by said correction slide and connected to said control circuit for switching said machine from recording to reproduction when said carriage is moved into engagement with said correction slide.
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 |