Philip Greenspun illustration project/Round 1/Request list/28

Philip Greenspun illustration project
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Round 1
Request list

• JIRA: https://jira.toolserver.org/browse/PGIP-54
• US$40

(en) Cone clutch

• http://en.wikipedia.org/wiki/Cone_clutch
• Examples: http://www.thefreedictionary.com/Cone+clutch and http://www.tb-training.co.uk/11GEARS.htm
• tags: mechanics