CSI 10140 Feed check valveAll metallic section cut model. A good design of non return valve and arrangements for regulating by hand can be easily demonstrated with this all metallic section cut model.
CSI 9045 Crony Brake Dynamometer (With Weights)Consisting of a two blocks of wood clamped together with a pulley in the centre. The pulley is fitted to shaft moving on the ball Bearings. A lever bar is attached to one of two blocks carrying a weight hanger at the outer end. A spring balance is also fitted to measure the load factor developed with the tightening of the block with wing nuts and spring.