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  <xs:element id="pkoh_RevolvingCreditFacilityCanadianSubLimitMember" abstract="true" name="RevolvingCreditFacilityCanadianSubLimitMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pkoh_RevolvingCreditFacilityEuropeanSubLimitMember" abstract="true" name="RevolvingCreditFacilityEuropeanSubLimitMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pkoh_DebtInstrumentIssuePriceAsPercentageOfPrincipalAmount" abstract="false" name="DebtInstrumentIssuePriceAsPercentageOfPrincipalAmount" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="pkoh_PercentageOfOwnershipOverGuarantorSubsidiaries" abstract="false" name="PercentageOfOwnershipOverGuarantorSubsidiaries" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="pkoh_BankGuaranteesAndLettersOfCreditAmount" abstract="false" name="BankGuaranteesAndLettersOfCreditAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="pkoh_RestrictedShareTimeBasedMember" abstract="true" name="RestrictedShareTimeBasedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="pkoh_TaxOnCurrencyTranslationAsForeignEarningsPermanentlyReinvested" abstract="false" name="TaxOnCurrencyTranslationAsForeignEarningsPermanentlyReinvested" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
