User:MichaelFrey/US1926463

• Figure 1 is a digrammatic repressentation of the apperatus embodying my invention
• Figure 2 is a modified form of the apparatus of figure 1
• Figure 3 is a detail showing therelative position of the cranks of the apparatus of figure 2
• Figure 4 is a detailed perspective view of te crankshaft of figure 1, showing the relative positions of the cranks

• a working cylinder
  • ap piston of the working cylinder
• b auxilirary cylinder
  • bp piston of the auxilirary cylinder
  • b3 upper part
  • b2 lower part
  • b4 heat insulating washer
  • bc piper conduit
• ab pip
• c cooling reservoir (filled with compressed air)
• d inlet valve
• e discharge valve
• f inlet valve
• g discharge or exhaust valve
• h heater
  • h2 pipe (leading from the pipe ab to the upper end of the heater h)
  • h3 pipe (leading from the lower end of the heater h to the lower end of the cylinder b)
• j open pipe
  • j2 oppen pipe
• cranks K2a and K3a

The valve controll is not shown in the drawing(s)