Abstract:
Apparatus for moving a reciprocating fluid-emission head automatically through successive, variable-speed, variable-function operating cycles that include linear extension and retraction to and from a space within which predetermined operations are to be sequentially performed. The apparatus has an elongated fixed frame, an intermediate carriage on the frame and a head carriage on the intermediate carriage, the head carriage being adapted to support the fluid emission head. The carriages are moved simultaneously between a retracted position coextensive with the frame and an extended position by chain and sprocket drive, the maximum extension of the fluid emission head being about twice the length of the frame due to the double extension achieved by extending both carriages simultaneously. A plurality of fluids to be sprayed (including, e.g. liquid lubricant) are transmitted from a manifold block on the fixed frame to the reciprocating emission head by a plurality of inflexible, extensible fluid conduits. The operation of the apparatus is controlled by means of pulses generated in response to motion of the chain and sprocket drive for the carriages and by a pulse counter adapted to count the pulses being generated and to count a plurality of preset position representative totals.
Abstract:
In an apparatus of this invention which applies refractory material in either wet or dry form onto the inner surface of a furnace, the improvement is characterized in that all the devices inevitable for the lining operation including an operator's seat are effectively mounted on the transport car thereof which can be steered readily in any direction around the furnace.Due to the above construction, the lining apparatus of this invention can conduct the spraying operation with great mobility and reliability.
Abstract:
System for handling and applying a non-suspended refractory slurry to ingot stools used in the production of steel ingots, including an apparatus capable of selectively applying refractory slurry to ingot stools which receives slurry from a storage tank. An agitator is provided in the tank to continually agitate the slurry, and wet air is used to clean the lines carrying the slurry when they are not being used for application of slurry to prevent clogging.