GB845229A - A marking arrangement for a recording machine - Google Patents
A marking arrangement for a recording machineInfo
- Publication number
- GB845229A GB845229A GB27789/57A GB2778957A GB845229A GB 845229 A GB845229 A GB 845229A GB 27789/57 A GB27789/57 A GB 27789/57A GB 2778957 A GB2778957 A GB 2778957A GB 845229 A GB845229 A GB 845229A
- Authority
- GB
- United Kingdom
- Prior art keywords
- slip
- dictating
- heater
- capacitor
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003990 capacitor Substances 0.000 abstract 3
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000003550 marker Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/34—Indicating arrangements
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/004—Recording on, or reproducing or erasing from, magnetic drums
Landscapes
- Electronic Switches (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
Abstract
845,229. Dictating-machines. DICTAPHONE CORPORATION. Sept. 3, 1957 [Sept. 4, 1956], No. 27789/57. Class 40 (2). A marker for a dictating-machine comprises a slip of heat-sensitive material and an electricallyheated marking-device. Fig. 1 shows a dictating-machine in which an endless belt record 12 moves under a recording-head 16 which traverses the belt in the direction of the arrow 18. Attached to the recording-head carriage is an arm 30 carrying a pivoted housing 26 which is spring-urged towards the top heat-sensitive slip 22 of a pad 21. Within the housing is a block 32 (Fig. 3) which has two heater wires 40 and 42 which can be heated selectively by pressing one end or the other of the switch 24 (Fig. 1) and thus marking the slip 22 in one of two positions. Each heater wire is connected across a capacitor which is itself in series with a resistor across a source of D.C. current supply. When the switch is closed to energize a heater the capacitor discharges through the heater wire and the value of the series resistor is such that the current permitted to flow thereafter is insufficient to produce significant heating of the wire. The marks on the slip are therefore of uniform intensity. The housing 26 may be raised to permit withdrawal of the slip. In a modification a single heater wire is used with two different values of capacitor to produce a single mark of variable intensity.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US607959A US2992060A (en) | 1956-09-04 | 1956-09-04 | Correction and end-of-letter marker for dictating machine |
Publications (1)
Publication Number | Publication Date |
---|---|
GB845229A true GB845229A (en) | 1960-08-17 |
Family
ID=24434429
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB27789/57A Expired GB845229A (en) | 1956-09-04 | 1957-09-03 | A marking arrangement for a recording machine |
Country Status (2)
Country | Link |
---|---|
US (1) | US2992060A (en) |
GB (1) | GB845229A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK100681C (en) * | 1961-12-22 | 1964-12-28 | Zeuthen & Aagaard As | Device for dictation machines. |
US3164434A (en) * | 1963-02-25 | 1965-01-05 | Jr Fred C Bolick | Indicating device |
US3203000A (en) * | 1963-12-20 | 1965-08-24 | Ibm | Marking device for dictating machine |
US3327312A (en) * | 1964-12-22 | 1967-06-20 | Electric Tachometer Corp | Multi-channel thermal recorder |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1245588A (en) * | 1915-07-23 | 1917-11-06 | Angus S Hibbard | Recording device for meters. |
US2292736A (en) * | 1941-07-12 | 1942-08-11 | Gerard A Harrington | Marking or correction device for dictating machines |
FR904381A (en) * | 1943-12-21 | 1945-11-05 | Henry Lepaute Ets | Registration process |
US2539874A (en) * | 1947-01-28 | 1951-01-30 | Stockfleth Berger | Card marker |
US2644738A (en) * | 1951-03-22 | 1953-07-07 | Gen Electric | Recording device |
US2820639A (en) * | 1954-06-10 | 1958-01-21 | Dictaphone Corp | Monitors for commercial phonographs |
-
1956
- 1956-09-04 US US607959A patent/US2992060A/en not_active Expired - Lifetime
-
1957
- 1957-09-03 GB GB27789/57A patent/GB845229A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2992060A (en) | 1961-07-11 |
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