DE506679C - Weight drive for record speaking machines - Google Patents

Weight drive for record speaking machines

Info

Publication number
DE506679C
DE506679C DEH120574D DEH0120574D DE506679C DE 506679 C DE506679 C DE 506679C DE H120574 D DEH120574 D DE H120574D DE H0120574 D DEH0120574 D DE H0120574D DE 506679 C DE506679 C DE 506679C
Authority
DE
Germany
Prior art keywords
drive
weight drive
weight
record
speaking machines
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
DEH120574D
Other languages
German (de)
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
Publication date
Priority to DEH120574D priority Critical patent/DE506679C/en
Application granted granted Critical
Publication of DE506679C publication Critical patent/DE506679C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G3/00—Other motors, e.g. gravity or inertia motors
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)

Description

Der Erfindungsgegenstand betrifft einen Gewichtsantrieb für Sprechmaschinen, bei dem das Treibgewichtsteil nach dem Aufziehen auf einer Schnurscheibe aufgewickelt ist. Da mit fortschreitender Bewegung des Tonabnehmers nach dem Platteninnern das durch die Schallnadel ausgeübte Bremsmoment kleiner wird, tritt bei den bekannten Gewichtsantrieben, deren Schnurscheibe zylindrisch ausgeführt ist, eine Erhöhung der Antriebsgeschwindigkeit ein. Erfindungsgemäß werden diese Mangel dadurch beseitigt, daß die Schnurscheibe konisch ausgebildet ist, so daß das Antriebsmoment stetig abnimmt.The subject matter of the invention relates to a weight drive for speaking machines which the propulsion weight part is wound up on a pulley after it has been pulled up is. As the movement of the pickup towards the inside of the plate progresses, the The braking torque exerted by the sonic needle becomes smaller, occurs with the known Weight drives, the pulley of which is cylindrical, increase the drive speed a. According to the invention, these deficiencies are eliminated in that the cord disc is conical, so that the drive torque decreases steadily.

In den Abbildungen ist eine Ausführungsform der Erfindung beispielsweise dargestellt. Abb. ι zeigt den Plattenteller mit seinen Antriebsteilen,In the figures, an embodiment of the invention is shown as an example. Fig. Ι shows the turntable with its drive parts,

Abb. 2 einen senkrechten Schnitt durch die Schnurscheibe.Fig. 2 shows a vertical section through the cord disc.

Die erfindungsgemäß konisch ausgebildete Schnurscheibe g sitzt in bekannter Weise lose auf der Antriebswelle d und ist mit dieser durch ein Klinkengesperre /, in verbunden. Der Aufzug des an dem Seil h befestigten Gewichtes erfolgt in bekannter Weise durch ein zweites, um die Scheibe k geschlungenes Seil n. The conical cord disc g according to the invention sits loosely in a known manner on the drive shaft d and is connected to it by a ratchet lock /, in . The weight attached to the rope h is lifted in a known manner by a second rope n looped around the pulley k.

Claims (1)

Patentanspruch:Claim: Gewichtsantrieb für Plattensprechmaschinen, bei dem das Seil des Treibgewichtes nach dem Aufziehen auf einer Schnurscheibe aufgewickelt ist, dadurch gekennzeichnet, daß die Schnurscheibe (g) konisch ausgebildet ist.Weight drive for record speaking machines, in which the rope of the drive weight is wound onto a cord disc after it has been pulled up, characterized in that the cord disc (g) is conical. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEH120574D Weight drive for record speaking machines Expired DE506679C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH120574D DE506679C (en) Weight drive for record speaking machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH120574D DE506679C (en) Weight drive for record speaking machines

Publications (1)

Publication Number Publication Date
DE506679C true DE506679C (en) 1930-09-06

Family

ID=7173632

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH120574D Expired DE506679C (en) Weight drive for record speaking machines

Country Status (1)

Country Link
DE (1) DE506679C (en)

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