Abstract: A solidified residual iron within a blast furnace is suspended up by employing a shell suspending device fixed to a tuyere arranged in a lower end portion of an upper portion of a furnace body suspended by a lift jack and a solidified residual iron suspending band, thereafter is descended by employing the lift jack and is mounted on a horizontally moving table. Subsequently, the horizontally moving table mounting the solidified residual iron thereon is moved onto a furnace outer truck rail from a furnace inner truck rail so as to be taken out of the furnace by operating a center hole jack arranged near the furnace outer truck rail, whereby an operation of taking out the solidified residual iron within the blast furnace out of the furnace is economically performed for a short time.

Abstract: A solidified residual iron within a blast furnace is suspended up by employing a shell suspending device fixed to a tuyere arranged in a lower end portion of an upper portion of a furnace body suspended by a lift jack and a solidified residual iron suspending band, thereafter is descended by employing the lift jack and is mounted on a horizontally moving table. Subsequently, the horizontally moving table mounting the solidified residual iron thereon is moved onto a furnace outer truck rail from a furnace inner truck rail so as to be taken out of the furnace by operating a center hole jack arranged near the furnace outer truck rail, whereby an operation of taking out the solidified residual iron within the blast furnace out of the furnace is economically performed for a short time.

Abstract: An automatic lifting angle adjuster for lifting wire rope having expandable arm members 12 which are connected to an expanding driving device 11 at the center thereof and a fixing device 21 which is attached to the top end portion of each arm member 12, and provided with rope-fixing member 23 each of which fixes a wire rope 20, rope guide members 24 through each of which the wire rope 20 passes and tension springs 25 each of which connects each of them, wherein the rope guide member 24 is rotated inside and outside of arm member 12 for hooking a load to be lifted and for removing by itself from the transported load. And, an automatic lifting angle adjuster for lifting wire rope having an expanding driving device 11 comprising a sliding member 15 which is compressed by a central compression spring 17, a receiving member 18, and a vertical shaft 14 which connects these members, and allowing a simple construction and small height in total size.

Abstract: An automatic lifting angle adjuster for lifting wire rope having expandable arm members 12 which are connected to an expanding driving means 11 at the center thereof and fixing means 21 which is attached to the top end portion of each arm member 12, and provided with rope-fixing member 23 each of which fixes a wire rope 20, rope guide members 24 through each of which the wire rope 20 passes and tension springs 25 each of which connects each of them, wherein the rope guide member 24 is rotated inside and outside of arm member 12 for hooking a load to be lifted and for removing by itself from the transported load. And, an automatic lifting angle adjuster for lifting wire rope having an expanding driving means 11 comprising a sliding member 15 which is compressed by a central compression spring 17, a receiving member 18, and a vertical shaft 14 which connects these members, and allowing a simple construction and small height in total size.

Abstract: A rotary load lifting hook device according to the present invention incorporates a remotely operable rotational driving device 11 provided on a hook block 20 on which a load lifting hook 1 is positioned vertically for rotation. The rotational driving device 11 and the hook block 20 are connected to each other by means of chain wheels 12, 13 provided respectively thereon. An endless chain 14 is held in meshing engagement with the chain wheels 12, 13 so that the hook block 20 may be driven to rotate by remote operation. Rocking motion, oscillations and so forth which take place with the load lifting hook 1 when a load is lifted may be absorbed by the endless chain 14 such that the load lifting hook 1 can be rotated with safety and with cetainty without causing overstrain with the rotational driving device 11 and the load lifting hook 1.

Abstract: A movable ocean launching apparatus includes a semi-submersible ocean launcher for space rockets and a carrier for carrying it while holding the upper supporting deck thereof. This arragement makes it possible to inexpensively realize the transporation of the ocean launcher, preparation for ocean-based launching and the like and also to reduce the total construction costs of the launching base.

Abstract: In a lifting sling for lifting up at least one elongated article, a pair of wire rope units depend respectively from a pair of hooking units which are arranged respectively at opposite ends of the elongated article. A pair of guide arm units each having one end pivotally attached to the elongated beam respectively adjacent to the opposite ends thereof accommodate and support respectively the pair of wire rope units. A pair of actuator units each has one end pivotally attached to the elongated beam and the other end pivotally attached respectively to the pair of guide arm units. The pair of actuator units respectively move the pair of guide arm units toward and away from each other about their corresponding ends. A controller is connected to the pair of actuator units for operating the same to move the pair of guide arm units toward and away from each other.

Abstract: An ocean launching apparatus of space rockets comprises a launch pad platform having a floating-island structure and a semi-submersible hull for loading and transporting the launch pad platform. When the apparatus reaches an intended ocean area, a rocket set on the launch pad platform is floated from the hull in a semi-submersing state on the ocean together with the launch pad platform and moved to a launching site. In this way, it is possible to provide an ideal launching site of space rockets, increase an economical efficiency of launching of space rockets, and guarantee the safety if an accident should occur.

Abstract: A method of installing an offshore platform. The superstructure is assembled and completed in advance in a fabrication yard. The superstructure with a floating body attached thereto is transported to the area of the sea where a jacket of the platform has been erected by towing the superstructure while floating on the sea. It is made to sink by pouring sea water into the floating body and installed on the top portion of the jacket which is situated under the sea level. An extension is attached to the jacket in advance such as to project above the sea level during the piling operation and thereafter it is removed such that the top portion of the jacket is brought to a position below the sea level.

Abstract: A method for constructing a blast furnace, in which the blast furnace is designed to be divided into a plurality of blocks with a deck frame and other parts, and these blocks are individually assembled on the ground in a sequential order from the furnace top to the furnace bottom. The individual blocks are conveyed one after another onto a foundation, and the furnace top block is initially lifted up. In this manner, the successive blocks are lifted up in the described order and joined together at their ends to complete the blast furnace.