o disengage the drum without whatever, because the clockwork movement is con- produced by sudden variations in temperature were touching the other parts. By merely varying the pro- not rendered with all their instantaneousness. In nected with the cylinder by a socket with friction portions of the… … sists of an extremely sensitive diaphragm. This necessary to give the pen a very accurate vertical 2.-RICHARDS REGISTERING PRESSURE GAUGE. motion, which would involve the necessity of mak- Fig instrument renders great services in the con- trolling of the pressure of gas or the draught ing the…
Patents · Center · Water · Patented · Scientific American · Sole manufacturers · Soft iron · Steam engine · Address munn · Sewing machine · Wrought iron · Cog wheel · Pounds pressure · Paraffine wax
Internet Archive · Public domain (published before 1931). Free to use for anything.
