DE1328391U - - Google Patents

Description

Device for cutting and scanning records

The hiring relates to devices that are set up for cutting and scanning records and both operations with the same energy conversion device so that this ice pickup as well as tonschj | »ider works *

Bs is known to record and play back - (, eriiten to use the same device for both operations · The Sohne and · wiodt.'rgabadeln have in these designs ....: practically the same angle of attack compared to the record, so · *: '. Always use the most favorable angle of attack for only one work step. ·. ··. tying is *

**. Be is also still known that devices with de-

'·. · The records can be made, the 6chmi ^ | 4döl:' against- **: is usually placed vertically above the loudspeaker carrier, - '· *! while on devices for playback, the stylus is positioned at an angle to the phonetic carrier *

In order to take this fact into account, was in the previously common devices, in which the same device for sons and Scanning of a record is used, an embodiment as shown in FIGS. 1 and 2 is chosen, while FIGS. 3 and 4 record devices represent according to the masonry · Be show these figures Each a side view and a top view of a turntable

As Fig * l shows, above a turntable 1 is a Cutting head 2 arranged so that or is parallel or approximately

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TELEFUCKS

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15-1-1955

SHEET

can move parallel · The dash-dotted line 3 indicates the axis of a joint around which the cutting head 2 can perform a rotary movement with the aid of the ears 4 · The tendon needle 5 Is directed vertically against the plate and moves along the dotted line during the cutting process eye bagged radius 6 *

If the same device is used for scanning, the result is Calibrate the arrangement according to Fig. 2 · The one now working as a pickup Part 2 is pivoted until the stylus 7 the required inclination against the plane of the plate and needle · Bs now moves the needle tip on the dotted one Line 8 so that palpation stings as opposed to cutting occurs tangentially

The disadvantages of the non-tangential way of working adhere to calibration and the special appear strong when the cutting process and the scanning process do not take place in this respect are different, are known · The device according to the innovation gives the possibility to use the needles with domes for the respective work step to allow the necessary angle of attack to work while avoiding the arrangements described in accordance with Fig. 1 and 2 inherent disadvantages. It can be quite useful here be to use kinked needles whose kink angle is so dimensioned is that if the position of the cutting and scanning head is practically unchanged, the needle with what is necessary for the respective operation Angle of attack can be clamped

Fig. 3 shows such a device in Abtaetstellurg, and

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while using a straight needle · The direction of the pickup and / or its needle cavity let this through the necessary The inclination of the straight needle 7 to be clamped into it determines · The The way of the needle tip is indicated by the dotted line 9, namely the pickup is to be set so that this line runs on a radius or at least close to it »

If a sound recording is to be cut, the position of part 2 is not changed, that is, it has as Cutting head the same direction as the pickup · The vertical position of the needle tip necessary for cutting is achieved by nicking the needle 10 · W-uring the sons oath process the needle point then runs on the dotted line 11 »line 11 and line 9 are displaced parallel to one another by a negligibly small amount due to the bending of the needle tip, the but is practically without any influence

As Fig. 5 and 6 show, a * Needles can be used whose kink angle is dimensioned in such a way that they are equally suitable for cutting and scanning processes in the position shown in Pig for accepting sound recordings

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Claims (1)

φ Protection claims 1) Device for cutting and scanning records, in which one and the same Mad *! Cave is used to hold both the acceptance and the recording and in which the needle tips move practically along a radius of the record, characterized in that with virtually the same spatial position of the can, which is used both for the son and for the scanning, the most favorable setting angle for the respective working process (for the cutting process about 90 °, for the scanning process about 60 °) by selecting different needle shapes are produced for both processes * 2o) Device according to claim 1, characterized in that the needles for one of the two operations (remaining stretch bind, while the necessary compensation of the angle of attack by appropriate dimensioning of the angle of the hadels for the other worki gear is made 3 ·) Device according to claim 1, characterized by such an angle of inclination of the ^fi adelhöhle against the plane of the plate · and such a knee angle of the needle that it can be clamped with the tip perpendicular or approximately perpendicular to the plate »while it is rotated 180 ° has the necessary inclination against the plate for scanning * II, MOOO. «, M