Threaded – headed fastener – or washer making: process and apparat – Process – Assembling or disassembling fastener with element
Patent
1995-03-20
1997-02-18
Larson, Lowell A.
Threaded, headed fastener, or washer making: process and apparat
Process
Assembling or disassembling fastener with element
470 12, 411386, 411411, B21K 146
Patent
active
056036612
ABSTRACT:
An improved railroad frog bolt-nut assembly is disclosed. The bolt has a square head and a shank. The shank has an unthreaded portion adjacent the head and a threaded portion at its terminal end. The threaded portion is rolled to a diameter equal to the shank's unthreaded portion to produce high fastener strength. A unitary lock nut is formed with an annular boss extending from its outside end in which indentations intersecting with some of the nut threads are pressed to provide an interference, locking fit with the bolt threads.
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"Maintenance of way fasteners Solutions", pp. III-5 to III-6, III-9, VI-7 to VI-10, Camcor Textron.
Barnes Group Inc.
Larson Lowell A.
Schoeffler Thomas C.
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