41. He first proposed braking of passenger trains as a function of speed ( brakes with two working pressure ). 42. The ship was powered by three license-built boilers at a working pressure of that gave her a speed of. 43. Santa Clara had six water tube boilers with a combined heating surface of and a working pressure of 300 NHP 44. The engines were powered by steam from 19 Yarrow boilers and six cylindrical boilers that had a working pressure of. 45. From a working pressure of 575 psi in 1927, by 1929 an experimental boiler was operated at 1, 200 psi. 46. She had twelve Kampon Type B ( Ro ) boilers with a working pressure of, although only eight were oil-fired. 47. In the 1920s either two or three ( sources vary ) received superheated boilers of 200 lb sq in working pressure . 48. To offset the reduced number of boilers, the new ones were fitted with forced draught which increased their working pressure to. 49. Simple hydraulic cylinders have a maximum working pressure of about 70 stroke of a hydraulic cylinder is limited by the manufacturing process. 50. An external precision gear pump is usually limited to a maximum working pressure of and a maximum speed of 3, 000 rpm.
