CPC E01F 13/06 (2013.01) [E01F 9/00 (2013.01)] | 16 Claims |
1. A method of manufacturing an arm assembly for a warning or barrier gate, comprising:
aligning a first arm section and a second arm section, where the first arm section terminates in a tenon, and the second arm section terminates in a mortise, and the mortise is proximate to and aligns with the tenon when the first arm section is aligned with the second arm section;
forming a mechanical bond between the mortise and the tenon;
removably fastening the mortise and the tenon to form at least part of the arm assembly; and
wherein the arm assembly is configured to rotate about a lift shaft and a rotational center of the lift shaft is offset about 45 degrees from a breakaway arm connected to the second arm section.
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