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.)
Individual
Original Assignee
Individual
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 IndividualfiledCriticalIndividual
Priority to ES1977231670UpriorityCriticalpatent/ES231670U/es
Publication of ES231670UpublicationCriticalpatent/ES231670U/es
1. Grata giratoria, provista de un eje apto para montarse en el portabrocas de una taladradora fija o portátil, o máquina-herramienta equivalente, caracterizada porque el eje lleva solidarios dos discos planos respectivamente paralelos y perpendiculares al eje de giro; en zona periférica, de los cuales y equidistantemente repartidos sobre una circunferencia concéntrica, van realizados agujaros circulares enfrentados en cada uno de los cuales va montado un pasador que sirve de soporte a una batería de resortes iguales que van ensartados con holgura sobre él.