<sod>A '''Belleville washer''', also known as a '''coned-disc spring''',<ref name="shigley">{{Citation | last = Shigley | first = Joseph Edward | last2 = Mischke | first2 = Charles R. | last3 = Brown | first3 = Thomas H. | title = Standard handbook of machine design | page = 640 | publisher = McGraw-Hill Professional | year = 2004 | edition = 3rd | url = http://books.google.com/books?id=Mafom8J9sqYC&pg=PT150 | isbn = 978-0-07-144164-3 | postscript =.}}</ref> '''conical spring washer''',<ref name="smith">{{Citation | last = Smith | first = Carroll | author-link = Carroll Smith | title = Carroll Smith's Nuts, Bolts, Fasteners, and Plumbing Handbook | publisher = MotorBooks/MBI Publishing Company | year = 1990 | page = 116 | url = http://books.google.com/books?id=A81HmmRCN7YC&pg=PA116 | isbn = 0-87938-406-9 | postscript =.}}</ref> '''disc spring''', '''Belleville spring''' or '''cupped spring washer''', is a type of [[spring (device)|spring]] shaped like a [[Washer (mechanical)|washer]]. It has a [[Frustum|frusto]]-[[cone (geometry)|conical]] shape which gives the washer a spring characteristic. The Belleville name comes from the inventor [[:Fr:Julien Belleville]] who patented the design in France in 1867.<ref name="shigley"/> <ref name="Bhandari">{{Citation | last = Bhandari | first = V. B. | title = Design of Machine Elements | page = 441 | publisher = Tata McGraw-Hill | year = 2010 | edition = 3rd | url = http://books.google.com/books?id=4DAYjIkeUwkC&pg=PA441&dq=Belleville | isbn = 978-0-07-068179-8 | postscript =.}}</ref><eod>
<sod>A '''Belleville washer''', also known as a '''coned-disc spring''',<ref name="shigley">{{Citation | last = Shigley | first = Joseph Edward | last2 = Mischke | first2 = Charles R. | last3 = Brown | first3 = Thomas H. | title = Standard handbook of machine design | page = 640 | publisher = McGraw-Hill Professional | year = 2004 | edition = 3rd | url = http://books.google.com/books?id=Mafom8J9sqYC&pg=PT150 | isbn = 978-0-07-144164-3 | postscript =.}}</ref> '''conical spring washer''',<ref name="smith">{{Citation | last = Smith | first = Carroll | author-link = Carroll Smith | title = Carroll Smith's Nuts, Bolts, Fasteners, and Plumbing Handbook | publisher = MotorBooks/MBI Publishing Company | year = 1990 | page = 116 | url = http://books.google.com/books?id=A81HmmRCN7YC&pg=PA116 | isbn = 0-87938-406-9 | postscript =.}}</ref> '''disc spring''', '''Belleville spring''' or '''cupped spring washer''', is a type of [[spring (device)|spring]] shaped like a [[Washer (mechanical)|washer]]. It has a [[Frustum|frusto]]-[[cone (geometry)|conical]] shape which gives the washer a spring characteristic. The Belleville name comes from the inventor [[:Fr:Julien Belleville]] who patented the concept in France in 1867.<ref name="shigley"/> <ref name="Bhandari">{{Citation | last = Bhandari | first = V. B. | title = Design of Machine Elements | page = 441 | publisher = Tata McGraw-Hill | year = 2010 | edition = 3rd | url = http://books.google.com/books?id=4DAYjIkeUwkC&pg=PA441&dq=Belleville | isbn = 978-0-07-068179-8 | postscript =.}}</ref><eod>