| 摘要 |
The device is provided with shooting and spraying nozzles fixed on two cranes. These can be moved right and left in the stable by means of two wires wound around wire drive wheels driven by a speed transmission system connected with motors. The nozzles are connected with pipes and valves to shoot or spray water or sterilising soln. selectively. The moving direction of the cranes is altered by two locating switches having a control bar to be touched by the plates of the cranes. |
