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• 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)

The text and illustrations of US patents published before March 1, 1989 are in the public domain unless the patent text contains a specific notice that portions are copyrighted. See 37 CFR 1.71(d), 37 CFR 1.84(s) The original patent contains no such notice, so its contents are in the public domain. Note: This only applies to images published before March 1, 1989. Patents published after that date are most likely copyrighted, unless in the public domain for another reason, such as {{PD-ineligible}}.