Trace Carrier.
Description:
Patent for a new and improved trace-carrier. This design "consist[s] of a rectangular frame, a central integral transverse bar provided at its upper and lower edges with pairs of spaced-apart superficial ribs having central aligning bores, a spring-pressed bolt mounted in one of said ribs, adapted at its inner end to take into the opposite rib and provided at its outer end with a knob or head, a pintle mounted in the lower pair of ribs, a tongue pivoted upon the pintle, said tongue having its u…
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Date:
December 30, 1890
Creator:
Harbour, Thomas J.
Item Type:
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Patent
Partner:
UNT Libraries Government Documents Department