Transactions of the Section on Preventive and Industrial Medicine and Public Health of the American Medical Association (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1911. Excerpt: ... REPORT OF THE COMMITTEE ON THE VENTILATION OF CARS /. INTRODUCTION The work assigned to your committee was as follows: "To report on the ventilation of cars." Ventilation is defined as "the theory, practice or method of supplying buildings, ships, etc., with pure air." While the same fundamental principles apply to the ventilation of all cars, these are of so many kinds and capacities and the conditions to be met are so various, that they naturally fall into several distinct groups. Each of these groups offers different practical problems. Your committee has confined its attention, in the main, to the railway passenger car. The time at the disposal of the committee has been too limited to permit of the completion of any new experimental work in this field. It has attempted to assemble for your consideration such facts as will aid in interpreting the present state of the art of car ventilation and the efficiency of the methods employed, and as will illustrate the important fundamental principles involved. These facts will suggest the direction which future investigation should take, and will indicate the lines along which it is believed the comfort and hygiene of cars can be improved. From time to time the Master Car Builders' Association1 has appointed committees to investigate the ventilation of passenger cars, and their reports have contained matter of considerable excellence. In 1874 their committee considered the theory and chemistry of ventilation and presented many details of importance. In 1894 another committee made a report in which the conditions and devices of the time were discussed, methods presented and suggestions made to meet the various difficulties. This report included a small amount of experimental work. In 1908 a third committee made ...