supply and installation of laboratory instruments/equipment for mechanical engineering lab of government polytechnic katihar=1. different types of cams, followers and cam/follower arrangement 2. various belt drives, chain and sprocket, various gear drives. 3. governors - all types 4. working models of gear trains - all types. (simple, compound, reverted, epicyclical) various types of brake assemblies rope brake dynamometer- 7. various types of clutch assemblies. 8. static and dynamic balancing apparatus 9. condenser 10. bicycle free wheel sprocket mechanism, geneva mechanism, ackerman’s steering gear mechanism and foot operated air pump mechanism, slider crank mechanism, hooks joint, inversions of four bar mechanisms-locomotive coupler, beam engine, pantograph, pendulum pump, rotary i.c. engine mechanism, oscillating cylinder engine, whitworth quick return mechanism, quick return mechanism of shaper, scotch yoke mechanism, elliptical trammel and oldham’s coupling. 11. heat engine 12. indicator unit 13. green sand moulding setup,casting setup and patterns 14. punching- blanking press 15. tig welding setup 16. oxy-acetylene welding and cutting setup 17. soldering station,solder, flux 18. brazing rod, braze, flux 19. lathe tool dynamometer 20. milling tool dynamometer 21. drill tool dynamometer 22. model of hydroelectric power plant 23. advanced casting equipment’s and tools