{"entities":{"Q434":{"pageid":979,"ns":120,"title":"Item:Q434","lastrevid":5409,"modified":"2026-06-28T17:26:03Z","type":"item","id":"Q434","labels":{"en":{"language":"en","value":"joint creases"}},"descriptions":{},"aliases":{},"claims":{"P27":[{"mainsnak":{"snaktype":"value","property":"P27","hash":"463f90cad232cf663361b82d985c564a951bca41","datavalue":{"value":"http://w3id.org/lob/concept/1404","type":"string"},"datatype":"url"},"type":"statement","id":"Q434$C0F2AE9B-356E-41FD-9C3F-D7B6EDB8F968","rank":"normal"}],"P1":[{"mainsnak":{"snaktype":"value","property":"P1","hash":"faaa214bb0b92382810cf441943600c4bb5b83b1","datavalue":{"value":{"entity-type":"item","numeric-id":68,"id":"Q68"},"type":"wikibase-entityid"},"datatype":"wikibase-item"},"type":"statement","id":"Q434$0F71FFA2-F0A9-4F52-8023-4DB0D137660A","rank":"normal"}],"P531":[{"mainsnak":{"snaktype":"value","property":"P531","hash":"4a6fcf4e9d8f4c385a82ffe4390510ad76bc3e16","datavalue":{"value":"A creased or scored line made from the outside of a cover from head to tail, parallel to the spine crease and a short distance from it towards the fore-edges of the cover. They are found on both sides of the cover and were made to assist the easy opening of a case-cover by sharing the hingeing movement required of a cover with the joint crease. A cover opened to 180\u00b0 with only spine creases will make the cover material hinge through 180\u00b0 along one narrow line, subjecting the cover to a great deal of stress. By adding joint creases, the movement is shared, with each crease only hingeing through 90\u00b0, thus reducing the strain on the cover.","type":"string"},"datatype":"string"},"type":"statement","id":"Q434$A896B22C-C96F-4DCC-8F0B-74DB6D4A32C9","rank":"normal"}],"P533":[{"mainsnak":{"snaktype":"value","property":"P533","hash":"6dfaf94c501bb56ee7286a71ddb6104fc89f3561","datavalue":{"value":{"entity-type":"item","numeric-id":749,"id":"Q749"},"type":"wikibase-entityid"},"datatype":"wikibase-item"},"type":"statement","id":"Q434$64688132-B117-4E80-B935-11443A081638","rank":"normal"}],"P519":[{"mainsnak":{"snaktype":"value","property":"P519","hash":"432761a0af2528bb8b895a8245d69f40b882653c","datavalue":{"value":{"entity-type":"item","numeric-id":242,"id":"Q242"},"type":"wikibase-entityid"},"datatype":"wikibase-item"},"type":"statement","id":"Q434$8BEA479B-DFEB-4B7C-9362-FF26E2BA168F","rank":"normal"}]},"sitelinks":{}}}}