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Title: Rail assembly for use in a radioactive environment

Abstract

An improved rail assembly and method of construction thereof is disclosed herein that is particularly adapted for use with a crane trolley in a hot cell environment which is exposed to airborne and liquidborne radioactive contaminants. The rail assembly is generally comprised of a support wall having an elongated, rail-housing recess having a floor, side wall and ceiling. The floor of the recess is defined at least in part by the load-bearing surface of a rail, and is substantially flat, level and crevice-free to facilitate the drainage of liquids out of the recess. The ceiling of the recess overhangs and thereby captures trolley wheels within the recess to prevent them from becoming dislodged from the recess during a seismic disturbance. Finally, the interior of the recess includes a power track having a slot for receiving a sliding electrical connector from the crane trolley. The power track is mounted in an upper corner of the recess with its connector-receiving groove oriented downwardly to facilitate the drainage of liquidborne contaminants and to discourage the collection of airborne contaminants within the track.

Inventors:
 [1]
  1. Harrison, OH
Issue Date:
Research Org.:
RALPH M PARSONS CO
OSTI Identifier:
866935
Patent Number(s):
4825769
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B66 - HOISTING B66C - CRANES
G - PHYSICS G21 - NUCLEAR PHYSICS G21F - PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT
DOE Contract Number:  
AC06-84RL10436
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
rail; assembly; radioactive; environment; improved; method; construction; disclosed; particularly; adapted; crane; trolley; hot; cell; exposed; airborne; liquidborne; contaminants; comprised; support; wall; elongated; rail-housing; recess; floor; ceiling; defined; load-bearing; surface; substantially; flat; level; crevice-free; facilitate; drainage; liquids; overhangs; captures; wheels; prevent; becoming; dislodged; seismic; disturbance; finally; interior; power; track; slot; receiving; sliding; electrical; connector; mounted; upper; corner; connector-receiving; groove; oriented; downwardly; discourage; collection; radioactive contaminants; substantially flat; electrical connector; particularly adapted; hot cell; bearing surface; airborne contaminants; rail assembly; radioactive environment; cell environment; radioactive contaminant; /104/212/238/376/976/

Citation Formats

Watts, Ralph E. Rail assembly for use in a radioactive environment. United States: N. p., 1989. Web.
Watts, Ralph E. Rail assembly for use in a radioactive environment. United States.
Watts, Ralph E. Sun . "Rail assembly for use in a radioactive environment". United States. https://www.osti.gov/servlets/purl/866935.
@article{osti_866935,
title = {Rail assembly for use in a radioactive environment},
author = {Watts, Ralph E},
abstractNote = {An improved rail assembly and method of construction thereof is disclosed herein that is particularly adapted for use with a crane trolley in a hot cell environment which is exposed to airborne and liquidborne radioactive contaminants. The rail assembly is generally comprised of a support wall having an elongated, rail-housing recess having a floor, side wall and ceiling. The floor of the recess is defined at least in part by the load-bearing surface of a rail, and is substantially flat, level and crevice-free to facilitate the drainage of liquids out of the recess. The ceiling of the recess overhangs and thereby captures trolley wheels within the recess to prevent them from becoming dislodged from the recess during a seismic disturbance. Finally, the interior of the recess includes a power track having a slot for receiving a sliding electrical connector from the crane trolley. The power track is mounted in an upper corner of the recess with its connector-receiving groove oriented downwardly to facilitate the drainage of liquidborne contaminants and to discourage the collection of airborne contaminants within the track.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {1}
}