Detail of device for extension and universal movement. 1. adjustable shaft hanger on house boat; 2. ball joint; 3. square shafting, fastened by set screws into ball joint at left, and also (4) into sleeve; 4 and 5. screws through flanges of sleeve; 6. oil holes; 7. square shaft which slides in and out of sleeve; 8. shaft hanger upon side float
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