Single-arm machine

Single-punch machines were the first tableting machines used at the end of the nineteenth century. The upper punch is lowered by a lever arm on the powder bed in the die and by reciprocating this procedure single tablets can be produced. Another possibility is to lower the upper punch by means of a screw. These manually operated tableting machines are no longer used. 

In a woodworking shop, many of the machines (such as table saws, radial arm saws, or routers) all use the same types of energy, have the same or similar controls for isolating the machines from the energy source, and use the same procedures to apply lockout. In this case, a single lockout procedure may be used for this group of woodworking machines. Be certain to identify all of the machines in the scope of the procedure. 

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