GB731464A - Improvements in or relating to phonograph tone arm mounting - Google Patents
Improvements in or relating to phonograph tone arm mountingInfo
- Publication number
- GB731464A GB731464A GB1010/53A GB101053A GB731464A GB 731464 A GB731464 A GB 731464A GB 1010/53 A GB1010/53 A GB 1010/53A GB 101053 A GB101053 A GB 101053A GB 731464 A GB731464 A GB 731464A
- Authority
- GB
- United Kingdom
- Prior art keywords
- record
- arm
- pick
- spring
- pressure
- 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
Links
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
- G11B3/02—Arrangements of heads
- G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
- G11B3/12—Supporting in balanced, counterbalanced or loaded operative position during transducing, e.g. loading in direction of traverse
- G11B3/28—Supporting in balanced, counterbalanced or loaded operative position during transducing, e.g. loading in direction of traverse providing transverse bias parallel to record
-
- 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
- G11B3/02—Arrangements of heads
- G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
- G11B3/30—Supporting in an inoperative position
- G11B3/32—Construction or arrangement of support pillars
Landscapes
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Abstract
731,464. Supporting gramophone pick-ups. CALTAGIRONE, J. V. Jan. 13, 1953 [Jan. 23, 1952], No. 1010/53. Class 40 (2). A pick-up arm 17 is mounted in a universal joint which may be rotated and secured in its housing 37 so that a coiled tension spring 40, drawing the arm 17 in a direction perpendicular with respect to pivots 27, is arranged to produce downward pressure on the record with an element of side pressure to counteract the side pressure produced on the stylus as a result of the friction between it and the rotating record. If the outer ring 31 of the universal joint is rotated clockwise, as viewed in Fig. 4 (B), the spring 40 produces a component of side pressure towards the centre of the record and, owing to the inclination of the pivots 27, the effective pressure of the spring 40 becomes less as the pick-up arm approaches the centre of the record. If the universal joint is rotated counterclockwise, the component of side pressure of the spring 40 is away from the centre of the record, but increases as the pick-up arm approaches the centre of the record. According to which way the universal joint is set, the pick-up 18 is reset on the end of arm 17 so that the stylus 23 is normal to the record, as in Fig. 4 (B). The arm 17 is counterbalanced by an adjustable weight 47, so that stylus pressure on the record is largely the result of the pressure of the spring 40, and is thereby largely independent of gravity.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US731464XA | 1952-01-23 | 1952-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB731464A true GB731464A (en) | 1955-06-08 |
Family
ID=22111995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1010/53A Expired GB731464A (en) | 1952-01-23 | 1953-01-13 | Improvements in or relating to phonograph tone arm mounting |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB731464A (en) |
-
1953
- 1953-01-13 GB GB1010/53A patent/GB731464A/en not_active Expired
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