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.)
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.)
Perpetuum Ebner Espanola SA
Original Assignee
Perpetuum Ebner Espanola SA
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 Perpetuum Ebner Espanola SAfiledCriticalPerpetuum Ebner Espanola SA
Priority to ES1967131277UpriorityCriticalpatent/ES131277Y/en
Publication of ES131277UpublicationCriticalpatent/ES131277U/en
Application grantedgrantedCritical
Publication of ES131277YpublicationCriticalpatent/ES131277Y/en
230000014759maintenance of locationEffects0.000abstract1
Landscapes
Holding Or Fastening Of Disk On Rotational Shaft
(AREA)
Abstract
Diameter adapter for phonographic records, characterized by the fact that it consists of a body of semi-rigid nature composed of a central core with through hole, from which are derived radial branches topped transversely by some ends of arched outer edge, whose edge has a curvature of radius greater than that of the ideal circle tangent to the centers of said edge of each end wall, these end walls having on said outer edge grooves progressively deepening toward the ends, so that when said body is placed in the hole a disc, the end walls are subject to bending at their ends so that in their grooves the edge of that hole penetrates, determining the elastic pressure retention of the body on the disc. (Machine-translation by Google Translate, not legally binding)
ES1967131277U1967-07-121967-07-12
DIAMETER ADAPTER FOR PHONOGRAPHIC DISCS.
ExpiredES131277Y
(en)
An apparatus that allows the inventors to obtain drawings in direct relief and continuous trazo (Machine-translation by Google Translate, not legally binding)