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Crosshead is used in horizontal steam engines for connecting the piston rod and connecting rod. The figure shows the part drawings of a steam engine crosshead. The crosshead, with the help of slide block 4, reciprocates between two guides provided in the engine frame. The gudgeon pin 3, connects the slide blocks with the crosshead block 1. This acts as a pin joint for the connecting rod (not shown in the figure). The piston rod 2 is secured to the crosshead block by means of the cotter 5. The assembly ensures reciprocating motion along a straight line for the piston rod and reciprocating cum oscillatory motion for the connecting rod.
This is a design concept of a Wooden Calendar. It is designed to use as a table thing and for dual purpose. It has Date, Month and Day features. It can also be used as a pen holder or pencil holder. The numbers and letters are made up of dark brown wood. and the rest is made up of light cream colored wood so that the text and numbers can be easily recognized from longer distances.