GB821975A - Improvements in and relating to a base for recording sounds and images, methods of manufacturing said base and apparatus utilizing the latter - Google Patents

Improvements in and relating to a base for recording sounds and images, methods of manufacturing said base and apparatus utilizing the latter

Info

Publication number
GB821975A
GB821975A GB19822/57A GB1982257A GB821975A GB 821975 A GB821975 A GB 821975A GB 19822/57 A GB19822/57 A GB 19822/57A GB 1982257 A GB1982257 A GB 1982257A GB 821975 A GB821975 A GB 821975A
Authority
GB
United Kingdom
Prior art keywords
base
band
flat
coils
recording
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
Application number
GB19822/57A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB821975A publication Critical patent/GB821975A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D15/00—Apparatus for treating processed material

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Springs (AREA)

Abstract

821,975. Sound records. CAILLIOT, S. L. L. June 24, 1957 [June 26, 1956], No. 19822/57. Class 40 (2). A recording base comprises a thin flexible helicoidal band A. Each coil of the band contains a number of holes 6 which are axially aligned when the coils lie flat and are engaged by driving-pins. The central hole 3 formed when the coils are flat may be conical or polygonal, 7, so that the coils may move axially relative to one another but are prevented from rotating relative to one another. The base may be manufactured by using flat discs C1, C2, C3, with a radial cut 9a, 9b, 9c and joining adjacent discs, as shown in Fig. 5, or by rolling or drawing a flat band to produce a trapezoidal section. A recording and reproducing apparatus is described for use with the band.
GB19822/57A 1956-06-26 1957-06-24 Improvements in and relating to a base for recording sounds and images, methods of manufacturing said base and apparatus utilizing the latter Expired GB821975A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR821975X 1956-06-26

Publications (1)

Publication Number Publication Date
GB821975A true GB821975A (en) 1959-10-14

Family

ID=9279508

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19822/57A Expired GB821975A (en) 1956-06-26 1957-06-24 Improvements in and relating to a base for recording sounds and images, methods of manufacturing said base and apparatus utilizing the latter

Country Status (1)

Country Link
GB (1) GB821975A (en)

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