SU1244705A2 - Device for removing dust from record disk - Google Patents

Abstract

The invention relates to mechanical recording and eliminates the possibility of drive overload during the cleaning of a record. The brush in the form of a roller 1, covered with velvet 2, is fixed on the brush holder 3, pressed against the bracket 4 with the help of an additional spring 10. The stiffness of the spring 10 is less than the rigidity of the spring 6 and is selected taking into account the permissible load on the drive. The cylindrical guide 7 provides the possibility of translational movement of the brush holder 3, and the rectangular shape of the hole 8 and the counter part 9 of the guide sleeve 5 excludes its rotation. The velvet 2 of the brush contacts the surface of the record 11 by pressing on the bracket 4. The pressing force of the brush is determined by the rigidity of the additional spring 10 and not by the force acting on the bracket 4. 1 il. g (/ 12 P h N9 4ik 4 O SP e

Description

The invention relates to mechanical sound recording, in particular to devices for cleaning records from dust.

The purpose of the invention is to eliminate the possibility of drive overload during the cleaning of the record.

The drawing shows the proposed device, the cut.

A device for cleaning shellac from dust contains a brush, made in the form of a roller 1, covered with velvet 2 and fixed on the brush holder 3. The bracket 4 is arranged for translation in the opening of the guide sleeve 5 and spring-loaded to the sleeve 5 by the spring 6. Brush holder 3 is provided with a cylindrical a guide 7, which allows the brush holder 3 to move in translation relative to the bracket 4 and the guide sleeve 5. Rotation of the brush holder is eliminated due to the rectangular opening and 8 in the Brush Holder 3 and the rectangular shape of the mate part 9 of the sleeve 5. The Brush Holder 3 is pressed to the bracket 4 with an additional spring 10 whose stiffness is less than the stiffness of the spring 6 and is selected on the basis of the permissible load on the drive. One end of the spring 10 is attached to the brush holder 3, and its opposite end to the guide sleeve 5.

I

The device works as follows.

After the laying of the record 11 n disk 12 close the cap 13, including Editor I. Casard Order 3923/54

Compiled by V. Gorbachevsky

Tehred N. Bonkalo Proofreader l. Pilipenko

Circulation 543Subscribe

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

447052

drive electric player, which drives the disk 12 with the record 1-1. Then, with one finger, press the bracket 5 4 until it stops, and the velvet 2 of the brush comes into contact with the surface of the record and begins to clean it. The force of pressing the brush to the record is determined by the rigidity of the additional spring 10 and does not depend on the force acting on the bracket 4. After cleaning, remove the finger and the spring 6, overcoming the force of the spring 10, returns the bracket 4 and the brush holder 3 to the original position.

The effect of using the proposed device in comparison with the prototype is of a qualitative character and is in eliminating the possibility of overloading the drive of the electric player during the cleaning of the record.

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Claims (1)

Invention Formula The device for cleaning dust from dust on auth., No. 1008785, is different so that, in order to eliminate the possibility of overloading the drive during cleaning of a gramophone record, a brush holder connecting the bracket with the brush and an additional spring, wherein the brush holder is mounted with a possibility of reciprocating motion with respect to the sleeve and the bracket, and an additional spring is installed between the brush holder and the sleeve.