The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 12, 1992
Filed:
Jul. 22, 1991
Applicant:
Inventors:
Josef Theurer, Vienna, AT;
Wilhelm Praschl, Linz, AT;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
104-2 ; 104263 ; 73146 ; 335231 ;
Abstract
An apparatus for placing a carriage linked to a frame of a track working machine on a track comprises a rail sensing element mounted on the carriage for sensing a respective track rail, the rail sensing element being positioned in the radial plane of the flanged wheel when the carriage is placed on the track and emitting a control signal in this position. A hydraulic drive for displacing the carriage transversely with respect to the track links the carriage to the track working machine frame. In response to the control signal, the operation of the hydraulic drive and the transverse displacement of the carriage is interrupted.