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.)
Sperry Gyroscope Co Ltd
Original Assignee
Sperry Gyroscope Co Ltd
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 Sperry Gyroscope Co LtdfiledCriticalSperry Gyroscope Co Ltd
Application grantedgrantedCritical
Publication of FR634258ApublicationCriticalpatent/FR634258A/fr
B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
B61K9/08—Measuring installations for surveying permanent way
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Recording Measured Values
(AREA)
Gyroscopes
(AREA)
FR634258D1927-04-211927-05-04Perfectionnements aux appareils enregistreurs pour voies ferrées ou autres
ExpiredFR634258A
(fr)