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
Application number
GB1693759A
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.)
Clevite Corp
Original Assignee
Clevite Corp
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 Clevite CorpfiledCriticalClevite Corp
Publication of GB912134ApublicationCriticalpatent/GB912134A/en
912,134. Recording-apparatus. CLEVITE CORPORATION. May 19, 1959 [May 23] 1958], No. 16937/59. Class 106 (4). In an apparatus for magnetic oscillography as in Specification 823,157 in which an oscillographic record 11 is traced on a wide magnetic medium 10 and produces a magnetic state of opposite polarity on each side of the oscillographic trace, transverse magnetic calibrating lines representing time, and longitudinal magnetic lines calibrating lines representing amplitude values, are traced on the medium immediately after making the record trace. The transverse lines may be made by a single transverse wire 25, Fig. 6, carrying a pulsing current, in which case the line would be recorded on one side only of the trace, or may be made by a narrow loop of wire 50, Fig. 7, in which case the line would be recorded on both sides of the trace. Longitudinal lines may be recorded by a number of needle-like permanent magnets 61, Fig. 8.