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 ES200059ApriorityCriticalpatent/ES200059A1/en
Publication of ES200059A1publicationCriticalpatent/ES200059A1/en
Dovetailed Work, And Nailing Machines And Stapling Machines For Wood
(AREA)
Abstract
An apparatus for checking the hardness of the bodies, characterized by a structure, with a central hollow disposed longitudinally, in which a shaft is housed that carries in its upper third a series of teeth, where it engages the end of a lateral device that propels towards up to the aforementioned axis: this is provided in its lower part with a projection on which it presses a spiral spring spring, which engages in a widening of the central hollow of the structure and surrounds said axis, to act downwards when the same it is released from the grip of the lateral device, causing a hit on the surface of a steel ball that housed in a hole made in the front area of the device, marks a mark on the material whose hardness you want to find out. (Machine-translation by Google Translate, not legally binding)
ES200059A1951-10-191951-10-19An apparatus for checking the hardness of the bodies (Machine-translation by Google Translate, not legally binding)
ExpiredES200059A1
(en)
Device for the parallel movement of figures in the form of plates, such as rulers, squares and the like. (Machine-translation by Google Translate, not legally binding)