You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
50 lines
25 KiB
XML
50 lines
25 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
|
|
<class-scheme publication-date="2023-02-01" scheme-type="cpc" publication-type="official">
|
|
<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" sort-key="F22G" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>F22G</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>SUPERHEATING OF STEAM </text><reference><text>steam separating arrangements in boilers <class-ref scheme="cpc">F22B37/26</class-ref></text></reference></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph>In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.</note-paragraph></note></notes-and-warnings>
|
|
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="F22G1/00" date-revised="2013-01-01" status="published"><classification-symbol>F22G1/00</classification-symbol>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F22G1/00" definition-exists="true" ipc-concordant="F22G1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-05-01" status="published"><classification-symbol>F22G1/00</classification-symbol><class-title date-revised="2018-05-01"><title-part><text>Steam superheating characterised by heating method </text><reference><text>exothermal chemical reactions not involving a supply of free oxygen gas, apparatus or devices for using the heat therefrom <class-ref scheme="cpc">F24V30/00</class-ref></text></reference></title-part></class-title>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G1/005" definition-exists="false" ipc-concordant="F22G1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G1/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the heat being supplied by steam</text></CPC-specific-text></title-part></class-title></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G1/02" definition-exists="false" ipc-concordant="F22G1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G1/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with heat supply by hot flue gases from the furnace of the steam boiler</text></title-part></class-title>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F22G1/04" definition-exists="false" ipc-concordant="F22G1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G1/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by diverting flow or hot flue gases to separate superheaters operating in reheating cycle, e.g. for reheating steam between a high-pressure turbine stage and an intermediate turbine stage</text></title-part></class-title></classification-item></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G1/06" definition-exists="false" ipc-concordant="F22G1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G1/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with heat supply predominantly by radiation</text></title-part></class-title>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F22G1/08" definition-exists="false" ipc-concordant="F22G1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G1/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from heated brickwork or the like</text></title-part></class-title></classification-item></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G1/10" definition-exists="false" ipc-concordant="F22G1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G1/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with provision for superheating by throttling</text></title-part></class-title></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G1/12" definition-exists="false" ipc-concordant="F22G1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G1/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by mixing steam with furnace gases or other combustion products</text></title-part></class-title></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G1/14" definition-exists="false" ipc-concordant="F22G1/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G1/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using heat generated by chemical reactions</text></title-part></class-title></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G1/16" definition-exists="false" ipc-concordant="F22G1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G1/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by using a separate heat source independent from heat supply of the steam boiler, e.g. by electricity, by auxiliary combustion of fuel oil</text></title-part></class-title>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F22G1/165" definition-exists="false" ipc-concordant="F22G1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G1/165</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by electricity </text><reference><text>steam generation in boilers heated electrically, in general, <class-ref scheme="cpc">F22B1/28</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F22G3/00" definition-exists="true" ipc-concordant="F22G3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G3/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Steam superheaters characterised by constructional features</text></title-part><title-part><text>Details of component parts thereof </text><reference><text>general aspects of enclosed heat-exchangers <class-ref scheme="cpc">F28D</class-ref></text></reference></title-part></class-title>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G3/001" definition-exists="false" ipc-concordant="F22G3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G3/001</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Steam tube arrangements not dependent of location </text><reference><text>characterised by location <class-ref scheme="cpc">F22G7/00</class-ref></text></reference></CPC-specific-text></title-part></class-title>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F22G3/002" definition-exists="false" ipc-concordant="F22G3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G3/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with helical steam tubes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G3/003" definition-exists="false" ipc-concordant="F22G3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G3/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Superheater drain arrangements</text></CPC-specific-text></title-part></class-title></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G3/004" definition-exists="false" ipc-concordant="F22G3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G3/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Steam tubes with steam flowing in opposite directions in one pipe, e.g. Field tubes </text><reference><text><class-ref scheme="cpc">F22G3/005</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G3/005" definition-exists="false" ipc-concordant="F22G3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G3/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Annular steam tubes, i.e. the steam being heated between concentric tubes with the heating fluid flowing in inner and around outer tube</text></CPC-specific-text></title-part></class-title></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G3/006" definition-exists="false" ipc-concordant="F22G3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G3/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Steam superheaters with heating tubes </text><reference><text><class-ref scheme="cpc">F22G3/005</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G3/007" definition-exists="false" ipc-concordant="F22G3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G3/007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Headers; Collectors, e.g. for mixing</text></CPC-specific-text></title-part></class-title></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G3/008" definition-exists="false" ipc-concordant="F22G3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G3/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Protection of superheater elements, e.g. cooling superheater tubes during starting-up periods, water tube screens</text></CPC-specific-text></title-part></class-title></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G3/009" definition-exists="false" ipc-concordant="F22G3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G3/009</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Connecting or sealing of superheater or reheater tubes with collectors or distributors</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F22G5/00" definition-exists="true" ipc-concordant="F22G5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G5/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Controlling superheat temperature </text><reference><text>control systems for steam boilers <class-ref scheme="cpc">F22B</class-ref>; regulating or controlling in general <class-ref scheme="cpc">G05</class-ref></text></reference></title-part></class-title>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G5/02" definition-exists="false" ipc-concordant="F22G5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-05-01" status="published"><classification-symbol>F22G5/02</classification-symbol><class-title date-revised="2017-05-01"><title-part><text>Applications of combustion-control devices, e.g. tangential-firing burners, tilting burners</text></title-part></class-title></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G5/04" definition-exists="false" ipc-concordant="F22G5/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G5/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by regulating flue gas flow, e.g. by proportioning or diverting</text></title-part></class-title></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G5/06" definition-exists="false" ipc-concordant="F22G5/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G5/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by recirculating flue gases</text></title-part></class-title>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F22G5/08" definition-exists="false" ipc-concordant="F22G5/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G5/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>preventing furnace gas backflow through recirculating fan</text></title-part></class-title></classification-item></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G5/10" definition-exists="false" ipc-concordant="F22G5/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G5/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by displacing superheater sections</text></title-part></class-title></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G5/12" definition-exists="false" ipc-concordant="F22G5/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-01-01" status="published"><classification-symbol>F22G5/12</classification-symbol><class-title date-revised="2022-01-01"><title-part><text>by attemperating the superheated steam, e.g. by injected water sprays </text><reference><text>spray mixers <class-ref scheme="cpc">B01F25/70</class-ref></text></reference></title-part></class-title>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F22G5/123" definition-exists="false" ipc-concordant="F22G5/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G5/123</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Water injection apparatus</text></CPC-specific-text></title-part></class-title>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F22G5/126" definition-exists="false" ipc-concordant="F22G5/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G5/126</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in combination with steam-pressure reducing valves</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F22G5/14" definition-exists="false" ipc-concordant="F22G5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G5/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by live steam</text></title-part></class-title></classification-item></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G5/16" definition-exists="false" ipc-concordant="F22G5/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G5/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by indirectly cooling or heating the superheated steam in auxiliary enclosed heat-exchanger</text></title-part></class-title></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G5/18" definition-exists="false" ipc-concordant="F22G5/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G5/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by by-passing steam around superheater sections</text></title-part></class-title></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G5/20" definition-exists="false" ipc-concordant="F22G5/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G5/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by combined controlling procedures</text></title-part></class-title></classification-item></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F22G7/00" definition-exists="true" ipc-concordant="F22G7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G7/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Steam superheaters characterised by location, arrangement, or disposition</text></title-part></class-title>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G7/005" definition-exists="false" ipc-concordant="F22G7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G7/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for locomotive boilers </text><reference><text><class-ref scheme="cpc">F22G7/065</class-ref>, <class-ref scheme="cpc">F22G7/105</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G7/02" definition-exists="false" ipc-concordant="F22G7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G7/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in fire tubes</text></title-part></class-title></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G7/04" definition-exists="false" ipc-concordant="F22G7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G7/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in jackets around fire tubes</text></title-part></class-title></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G7/06" definition-exists="false" ipc-concordant="F22G7/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G7/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in furnace tubes</text></title-part></class-title>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F22G7/065" definition-exists="false" ipc-concordant="F22G7/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G7/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for locomotive boilers</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G7/08" definition-exists="false" ipc-concordant="F22G7/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G7/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in fire-boxes</text></title-part></class-title></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G7/10" definition-exists="false" ipc-concordant="F22G7/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G7/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in smoke-boxes</text></title-part></class-title>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F22G7/105" definition-exists="false" ipc-concordant="F22G7/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G7/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for locomotive boilers</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G7/12" definition-exists="false" ipc-concordant="F22G7/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G7/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in flues</text></title-part></class-title></classification-item>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F22G7/14" definition-exists="false" ipc-concordant="F22G7/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G7/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in water-tube boilers, e.g. between banks of water tubes</text></title-part></class-title>
|
|
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F22G7/145" definition-exists="false" ipc-concordant="F22G7/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F22G7/145</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of inclined type, i.e. the water-tube sets being inclined with respect to the horizontal plane</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></class-scheme> |