Abstract: A lubrication system for an engine includes an oil discharge port in a lower section of a crankcase. A crankshaft, with a crank web attached thereto, rotates in a rotation direction within the crankcase. A first distance is formed between the crank web and a first inner surface of the crankcase, downstream of the oil discharge port. A second distance is formed between the crank web and a second inner surface of the crankcase, upstream of the oil discharge port. The first distance is less than the second distance. Also, the oil discharge port is defined in part by a back edge, which is wedge shaped and points in a direction opposite the rotation direction of the crankshaft. The back edge scoops oil from the crank web and into the oil discharge port.

Abstract: This specification discloses an ophthalmologic apparatus for executing an eye examination on an eye to be examined. The ophthalmologic apparatus is provided with an eye examination unit, an alignment drive system for driving the eye examination unit to thereby execute the alignment between the eye examination unit and the eye to be examined, a time measuring portion, and a control system for causing the alignment drive system to drive the eye examination unit on the basis of the output of the time measuring portion so as to return the eye examination unit to an eye examination waiting position.