This air at fifty pounds, duly cooled, may now, if we wish, be brought to say 100 pounds pressure in a second cylinder; its output is in turn cooled as before by conveyance through pipes bathed in cold water.
In the experiments that were made at this time (March 9) with gasoline, the main object in view was to obtain a smooth blue flame at 10 pounds pressure.
In addition to that there will also be 50 pounds pressure on each square inch of the head, as well as on the sides of the cylinder.
The agar medium may be sterilized in the autoclave for fifteen minutes at 15 pounds pressure as the high temperature does not injure the agar.
The solidified serum in either case is best sterilized discontinuously, though with care the autoclave at 15 pounds pressure may be used for a single sterilization.
In a properly designed water-tube boiler steam may be raised from a cold boiler to 200 pounds pressure in less than one-half hour.
But you say you know enough to not blow off at 50 pounds pressure.
I am aware that some engineers claim that the boiler should be blown out at about 5 pounds or I0 pounds pressure, but I believe in taking the common sense view.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "pounds pressure" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
