GB330501A - Improvements in or relating to the making of matrices for use in the manufacture of sound records - Google Patents

Improvements in or relating to the making of matrices for use in the manufacture of sound records

Info

Publication number
GB330501A
GB330501A GB413129A GB413129A GB330501A GB 330501 A GB330501 A GB 330501A GB 413129 A GB413129 A GB 413129A GB 413129 A GB413129 A GB 413129A GB 330501 A GB330501 A GB 330501A
Authority
GB
United Kingdom
Prior art keywords
ribbon
carrier
records
wound
convolutions
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
GB413129A
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.)
REGINALD PERCY THOROGOOD
Original Assignee
REGINALD PERCY THOROGOOD
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 REGINALD PERCY THOROGOOD filed Critical REGINALD PERCY THOROGOOD
Priority to GB413129A priority Critical patent/GB330501A/en
Publication of GB330501A publication Critical patent/GB330501A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D1/00—Electroforming
    • C25D1/10—Moulds; Masks; Masterforms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)

Abstract

330,501. Thorogood, R. P., and Good, J. Feb. 7, 1929. Records, duplicating; ribbon records.-A metal matrix in ribbon form for use in the manufacture of sound records is made by electrodeposition on to the face only of the master record f, which is also of ribbon form and is wound helically in a long length around a carrier b with its convolutions spaced apart. The record ribbon f is wound in a helical groove e which is formed in the surface of the carrier b, and a rubber &c. cord g may be wound between and over the edges of adjacent convolutions of the ribbon, as shown in Fig. 3. Alternatively, the carrier b may be of non-conducting material and have a helical rib for separating the convolutions of the ribbon f. The carrier b, of hollow cylindrical form, and an anode c, arranged around the carrier, are supported within a vessel a containing -the electrolyte. The anode c may be of tapering form and, to avoid voltage drop along the conducting surface of the ribbon f, a metal strip connected with the negative pole of the source of current supply is provided with a number of tongues, adapted to bear against the said conducting surface at different points along its length. The carrier b may be rotated by means of a belt-driven drum m, and the ribbon f may be formed of a metal adapted to serve as a cathode, or it may be coated with graphite &c. Duplicate sound records are produced from the matrix ribbon by pressing the latter, under heat if desired, with a plain ribbon of celluloid &c.
GB413129A 1929-02-07 1929-02-07 Improvements in or relating to the making of matrices for use in the manufacture of sound records Expired GB330501A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB413129A GB330501A (en) 1929-02-07 1929-02-07 Improvements in or relating to the making of matrices for use in the manufacture of sound records

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB413129A GB330501A (en) 1929-02-07 1929-02-07 Improvements in or relating to the making of matrices for use in the manufacture of sound records

Publications (1)

Publication Number Publication Date
GB330501A true GB330501A (en) 1930-06-10

Family

ID=9771324

Family Applications (1)

Application Number Title Priority Date Filing Date
GB413129A Expired GB330501A (en) 1929-02-07 1929-02-07 Improvements in or relating to the making of matrices for use in the manufacture of sound records

Country Status (1)

Country Link
GB (1) GB330501A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747219C (en) * 1941-09-13 1945-01-11 Schallband Syndikat A G Method for the galvanic production of sound tape matrices
DE746221C (en) * 1940-05-23 1945-01-25 Schallband Syndikat A G Method and device for producing sound tape matrices or matrices
DE974281C (en) * 1949-10-26 1960-11-17 Tefi Appbau Dr Daniel K G Method and device for making the sound writing side of original wax sound tapes conductive with a celluloid-like carrier layer
JPS4964520U (en) * 1972-09-18 1974-06-06
JPS51142431A (en) * 1976-05-29 1976-12-08 Fujikura Ltd Method of producing metal tape

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE746221C (en) * 1940-05-23 1945-01-25 Schallband Syndikat A G Method and device for producing sound tape matrices or matrices
DE747219C (en) * 1941-09-13 1945-01-11 Schallband Syndikat A G Method for the galvanic production of sound tape matrices
DE974281C (en) * 1949-10-26 1960-11-17 Tefi Appbau Dr Daniel K G Method and device for making the sound writing side of original wax sound tapes conductive with a celluloid-like carrier layer
JPS4964520U (en) * 1972-09-18 1974-06-06
JPS51142431A (en) * 1976-05-29 1976-12-08 Fujikura Ltd Method of producing metal tape

Similar Documents

Publication Publication Date Title
GB330501A (en) Improvements in or relating to the making of matrices for use in the manufacture of sound records
GB1079134A (en) Process for the production of electrets
ES409880A1 (en) Electrolytic diaphragm cells including current connection means between the cell base and anode
US1567079A (en) Process for producing sheet metal
US1814843A (en) Kerr cell
US2177235A (en) Multiple cell generator with single electrolyte
US2297271A (en) Galvanoplastic multiplication of sound record bands
AT155219B (en) Process for the manufacture of electrodes for electrical collectors.
AT149766B (en) Electric discharge tube.
US1331761A (en) Dry cell
NL168994B (en) ELECTRIC FILAMENT BULB WITH LIGHT-DIFFUSING COATING LAYER.
AT153056B (en) Process for the production of layer brushes for electrical machines.
US1879237A (en) Production of lenticular elements on films
US1076485A (en) Storage battery.
GB377315A (en) Improvements in or relating to variable electrical resistance devices
SU599234A1 (en) Electrode for insulation quality continuous control
US1708773A (en) Photo-electric cell
US1557980A (en) Electrodeposition process
GB160348A (en) Improvements in and relating to electrical heating apparatus
GB224749A (en) Improvements in electric heating apparatus
GB333293A (en) Improvements in selenium cells
GB419391A (en) Improvements in or relating to the electro-deposition of metals
GB335181A (en) Method of and means for producing sound records and metal matrices therefrom
JPS5377882A (en) Manufacture of diaphragm
GB685500A (en) Improvements in or relating to coiled electrical heating elements