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US1046650A - Gramophone-record. - Google Patents

Gramophone-record. Download PDF

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Publication number
US1046650A
US1046650A US66789611A US1911667896A US1046650A US 1046650 A US1046650 A US 1046650A US 66789611 A US66789611 A US 66789611A US 1911667896 A US1911667896 A US 1911667896A US 1046650 A US1046650 A US 1046650A
Authority
US
United States
Prior art keywords
groove
record
gramophone
disk
return
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 - Lifetime
Application number
US66789611A
Inventor
Cornelius Leonhard Rotheudt
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
Priority to US66789611A priority Critical patent/US1046650A/en
Application granted granted Critical
Publication of US1046650A publication Critical patent/US1046650A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/68—Record carriers
    • G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers

Definitions

  • the record is started in the m'dinarymanner, and the stylus is automatically returned by the groove c to the starting end of the groove b so as to repeat the piece as long as the disk is kept in motion.
  • a gramophone disk comprising a return groove carried across the tuns of the record groove and connecting the ends of the latter so as to return the sty-lusautomat-ically toits starting position, substantially as set forth.
  • a gramophone disk comprising a return groove carried in a parabolic curve across the turns of the record groove and

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  • Toys (AREA)

Description

G. L. RO'LHJJD'Il` GBAMOPEONE RECORD.
.wynouxon Hmm DEG. ze, 1911.
rammed Dec. 1o, 1912.`
CORNELIUS LEONI-IARD ROTIIEUIT, OF WALHEIM, NEAR AACHEN, GERMANY.
GBAMOPHO'NE-RECORD.
To all whom it 'may concern:
Be it known that I, CORNELIUS LEON HARD ROTHEUDT, a subject of the Emperor of Germany, residino at .Wlalheinn near Aachen, Germany, have invented certain 'Improvements in Gramopllone-Records, of which the following is a specification.
l/Vhen it is desired to play a gramophone record several times in succession, the stylus must each time be lifted and transferred from one endotl the record groove to the other, the play being meanwhile interrupted. This is of great disadvantage particularly when marches and dances are to be repeated which repetition ought to be obtained without noticeable interruption in the play. This drawback is remedied by the present invention according to which the groove of' a gramophone disk is made endless, the ends of the record groove being joined by a return groove carried in a parabolic curveacross the turns of said record groove. The
direction of the curve is naturally dependent upon the direction -in which the disk turns and its form should be such as to guide the stylus with as little resistance as possible. Having once been started inv 'the 'direction of the return groove, the stylus is easily guided through the same, and ,the part of the groove which crosses the turns of thel record groove can therefore be narrowed suicientl, for preventing it having a detrimental e ect on the record. The in- Specication of Letters Patent.
Patented Dec.10. 1912.
Application filed IDecenibei` 26, 1911. Serial No. 667,896.`
terruption caused to the music while the stylus passes through the return-groove vwill hardly be noticeable.
' The invention is illustrated by way of example in the accompanying drawing by a plan of the improved gramophone disk.
In said drawings (L is the disk and b the spiral groove which contains the record. The ends of the groove are joined by the return groove c which is carried'in a parabolic curve across the turns ofthe groove Z).
The record is started in the m'dinarymanner, and the stylus is automatically returned by the groove c to the starting end of the groove b so as to repeat the piece as long as the disk is kept in motion.
1. A gramophone disk comprising a return groove carried across the tuns of the record groove and connecting the ends of the latter so as to return the sty-lusautomat-ically toits starting position, substantially as set forth.
2. A gramophone disk comprising a return groove carried in a parabolic curve across the turns of the record groove and
US66789611A 1911-12-26 1911-12-26 Gramophone-record. Expired - Lifetime US1046650A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US66789611A US1046650A (en) 1911-12-26 1911-12-26 Gramophone-record.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66789611A US1046650A (en) 1911-12-26 1911-12-26 Gramophone-record.

Publications (1)

Publication Number Publication Date
US1046650A true US1046650A (en) 1912-12-10

Family

ID=3114923

Family Applications (1)

Application Number Title Priority Date Filing Date
US66789611A Expired - Lifetime US1046650A (en) 1911-12-26 1911-12-26 Gramophone-record.

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3214175A (en) * 1960-02-04 1965-10-26 Nakamatsu Yoshiro Sound recording system
US3656760A (en) * 1969-08-07 1972-04-18 American Clinic Inc Methods and means for inducing hypnosis

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3214175A (en) * 1960-02-04 1965-10-26 Nakamatsu Yoshiro Sound recording system
US3656760A (en) * 1969-08-07 1972-04-18 American Clinic Inc Methods and means for inducing hypnosis

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