Lugged coupling apparatus

摘要

An internally threaded collar having internal lugs is slidably received on a shaft having corresponding external lugs and is threadedly engaged on a threaded member and when rotated will engage the lugs and draw the shaft and threaded member together to form a secure, accurately aligned mechanical coupling which may be disassembled by reversing the process. The collar need never be completely removed from the threaded member to install or remove the shaft.