Abstract: A track traveling vehicle having rubber tires for engaging a public road to permit the vehicle to travel thereon, and also having metal wheels capable of engaging rails associated with a track for permitting the vehicle to travel therealong. The metal wheels are supported on the chassis of the vehicle for vertical movement between a raised position wherein the rubber tires engage the road, and a lowered position wherein the metal wheels engage the rails and the rubber tires are maintained in an upwardly suspended non-engaged position. Hydraulic pumps are driven by the rubber tires when they are in the raised suspended position, and the hydraulic pumps supply hydraulic fluid to hydraulic motors to effect driving thereof. The hydraulic motors are in turn drivingly coupled to either the front or rear metal wheels to effect driving thereof when the metal wheels are engaged on the rails so that the vehicle can travel therealong.

Abstract: An oil supply mechanism in a deep excavator comprising a chassis, a turntable disposed on the chassis, a boom which is pivotally supported on the turntable and is vertically swingable, a stretchable arm arrangement which is stretchable in the longitudinal direction and comprises base, middle arm and top arms, and buckets which are attached to the top arm for excavating and holding earth or sand. The oil supply mechanism includes an oil supply unit provided in the middle arm, and first and second hollow oil supply pipes are airtightly slidable in the oil supply unit and move outwardly from the oil supply unit in opposite direction. The outer end of the first oil supply pipe is coupled with the base arm, and the outer ends of the second oil supply pipe is coupled with the top arm.

Abstract: A raw sewage disposal apparatus for evaporating and drying raw sewage by heating. An evaporation container has a closed bottom portion and an opened upper portion for containing raw sewage thereon. A rotary holding structure holds an upper end of the evaporation container so as to permit horizontal rotation thereof. A covering supports the rotary holding structure and closes the opened upper portion of the evaporation container from the atmosphere. A frame capable of hanging the evaporation container supports the covering substantially horizontally. A driving device is provided for rotating the evaporation container, and an electromagnetic heating means is disposed close to a lower surface of the evaporation container and generates a high-frequency electromagnetic wave which is supplied to the evaporation container.

Abstract: A disposal apparatus according to a first aspect comprises an evaporation pipe communicating with a container for discharging vapor evaporated from raw sewage therein. A catalyst box accommodates a catalyst and communicates with the evaporation pipe. An ejector connects to the catalyst box for drawing air therefrom. A hot-air blower connects upstream to the catalyst box for heating flowing air, and an air supply unit supplies air to the ejector and the hot-air blower. A bypass pipe communicates between the ejector and the container. The disposal apparatus according to a second aspect comprises a heat-resistant airtight container for raw sewage, and an induction heating device disposed under the container. The heating device has a coil for generating a high-frequency electromagnetic wave to heat the container by induction. A rotatable stirrer and heat-holding balls are contained in the container. A stool communicates with the container through a valve mechanism.

Abstract: Raw sewage, toilet paper or foreign matter is prevented from being stuck to an inner bowl of a stool by air bubbles. A cleaning mechanism of the stool comprises an outer cover which has an upper opening and can store cleaning liquid therein, an inner bowl accommodated inside the outer cover and a ring-shaped upper cover which contacts the upper end of the outer cover. An upper end peripheral edge of the inner bowl is spaced from the outer cover and upper cover and air is spouted from air discharge bodies provided at the bottom of the outer cover so that the air discharge bodies generate air bubbles which agitate the cleaning liquid so as to generate bubbles which stick to the entire surface of the inner wall of the inner bowl.

Abstract: A raw sewage disposal apparatus capable of easily stirring raw sewage and cleaning a container by rotating the container per se after introducing the raw sewage into the container and heating, evaporating and drying the raw sewage. The raw sewage disposal apparatus comprises a container for accommodating raw sewage therein, an electromagnetic heater for heating the container, a rotary holder for rotatably holding the container, a driver for rotating the container, spherical stirrers accommodated in the container, and a nonrotatable baffle having one end fixed to the cover plate and the other end extending to a position adjacent to the bottom of the container so as to contact the stirrers.

Abstract: A fork lift truck loading mechanism mounted on a chassis of a movable truck for loading a self-propelled fork lift truck by connection to the forks of the fork lift truck so as to hold the fork lift truck and turning of the forks together with the fork lift truck onto a bed of the truck. The fork lift truck loading mechanism comprises a holding arrangement which is supported by the chassis of the truck so as to be movable therewith and turned from substantially a horizontal position to a substantially perpendicular or forwardly inclined position so as to hold the forks of the fork lift truck, and a rotary drive interposed between the truck and the holding arrangement for turning the holding arrangement.