Show iron lung it if built from pile of scraps seattle seattie martin cohn garageman M an has made a mechanical lung from an old sewing machine some sheet metal automobile P parts arts and pieces of rubber tubing the contrivance functions the same way as do the iron lungs that are used in keeping alive persons whose it lungs ings are affected by infantile infantine tiie paralysis it has a plate that fits over a patients patient s breast A motor creates a vacuum under the breastplate causing the patients lungs to expand 11 and inhale air then is pumped back into the space between the plate and the breast forcing the patient to exhale |