Abstract: High-speed breaker for an electric circuit, including a fixed contact, movable contact and a movable holder for the movable contact. An actuating rod is reciprocally movable toward and away from the fixed contact between first and second positions. A head is connected to the actuating rod. In the first position of the actuating rod, the head engages with the movable holder to cause the movable contact to engage with the fixed contact. In the second position of the actuating rod, the movable contact is disengaged from the fixed contact. A release member connected to the head is operative in response to overcurrent passing through the circuit when the actuating rod is in the first position, to disengage the movable holder from the head to disengage the movable contact from the fixed contact. An extension of the actuating rod is located between the engaging position of the movable holder with the head and the connecting position of the release member to the head.

Abstract: An improved oil collecting vessel of the twin-hull type is described here. An oily water suction means is provided with a float that supported by a linkage mechanism which in turn is fixedly secured to an upper deck of the vessel. The oily water suction means may therefore be raised or lowered without changing its direction so as to follow the wave motion of the water surface region delimited at its opposite side edges by the hulls. Oily water floating on the water surface region is sucked through the oily water suction means and is conveyed to a tank in the vessel through a suction pipe. The suction of the oily water is enhanced by an ejector provided in the midway of the suction pipe. An effluent oil converging section is provided in a reentrant form in front of the oily water suction means and is delimited by guide plates on its opposite sides. In front of the oily water suction means is a jet water injection port.