<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31414137</termId><termName>bell-and-spigot joints</termName><termType>PT</termType><termNote><![CDATA[ Commonly used joints in cast iron pipe. Each piece is made with an enlarged diameter or bell at one end into which the plain or spigot end of another piece is inserted. The joint is sealed by cement, oakum, lead, or rubber caulked into the bell around the spigot. ]]></termNote><termCreatedDate>2026-03-30 20:51:24</termCreatedDate><relation><relationType>UF</relationType><termId>31414138</termId><termName>bell-and-spigot joint</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31414139</termId><termName>joints, bell-and-spigot</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31414140</termId><termName>joints, spigot-and-socket</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31414141</termId><termName>spigot-and-socket joints</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31378156</termId><termName>metal joints</termName><termType>PT</termType></relation></term>  </Zthes>