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:
Jan. 25, 1983
Filed:
Nov. 19, 1979
Raymond R Lund, West Columbia, SC (US);
Canron Corporation, Columbia, SC (US);
Abstract
A system for orientating a railway spike of the type having a head provided with a lip which projects at one location from the head. It is important to ensure that the lip is aligned in a predetermined angular position so that when the spike is driven in a tie by means of an automatic spike driver the lip will overlie the rail flange. The system involves a holding device, such as an electromagnet for holding a spike and a drive motor rotating the holding device and spike until a light path defined between a stationary source and detector is interrupted by the lip of the spike and at which point the drive motor is deenergized, in addition, a switch indicating a complete 90.degree. rotation of the spike is also activated so that one of the flat faces of the square section shank will face the rail.