[{SlideShowNav}] !!!Jeffersons dumb waiter mechanism [{Image src='210us.jpg' width='428' height='640' alt='Jeffersons dumb waiter mechanism' class='image_left' popup='false'}] [{SET customtitle='Jeffersons dumb waiter mechanism'}] \\ Jefferson designed a dumb waiter mechanism for quickly delivering wine from the cellar to the dining area.