ably not entered into the draw head and operated by a pinion, and of the atmospheric pressure. These drums are distended or oneof all these words was written, that is, had all its sounds a swinging coupling pin operated in a vertical plane by a flattened under this pressure, and their motion is… … opened and closed easily and quickly. placed upon the frame of the instrument. REGISTERING BAROMETER, An improved furnace for locomotive and other Every week the observer changes the paper upon steam boilers has been patented by Mr. John Alves, the cylinder, puts a little ink in the pen, winds up…
Patents · Patented · Iron · Wheel · Feet · Scientific American · Going · Steam fire · Salt water · Cubic feet · Union iron · Aluminium gold · Truckee river · Wrought iron · Wood working · Police telephone
Internet Archive · Public domain (published before 1931). Free to use for anything.
