Device for removing dump nut from bolt

Details Device for removing dump nut from bolt Device for removing dump nut from bolt

1981-03-30

1982-12-14

Jones, Jr., James L.

Metal working

Means to assemble or disassemble

Means comprising hand manipulatable tool

29278, 81 3R, 403 16, B25B 2700

Patent

active

043631649

ABSTRACT:
A device for removing a dump nut from a bolt. The dump nut consists of a casing having an upwardly diverging through-bore, a plurality of separated nut segments slidably inserted in the through-bore in the casing to define a threaded bore therein, and a spring inserted in the through-bore in the casing to constantly urge the nut segments in the downward direction. A bolt is inserted through the threaded bore defined by the nut segments. The nut removing device according to the invention consists of two cross-sectionally arcuate complementary members which are oscillatably joined together at their adjacent side edges. In order to remove the nut from the bolt, the nut is turned in an untightening direction to a small extent, and the nut removing device is fitted around the exposed portion of the bolt. The device is then pushed upwardly to raise the nut segments against the spring. Thus, the nut can be removed from the bolt without turning the former over a great distance in the untightening direction toward the free end of the latter.

REFERENCES:
patent: 1920141 (1933-07-01), Fischer
patent: 2789458 (1957-04-01), Skeisvoll
patent: 3011794 (1961-11-01), Vaughn
patent: 3909046 (1975-09-01), Legris
patent: 4083393 (1978-04-01), Okada

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