porting posts, patented by George W. Curtis, of Long Grove, Iowa. strument stands on an elevated platfcrm in the open air, the upper end of the lever being connected with the As will be seen, the device is mounted on tracks or and the tube is protected by an extra cylindrical enve- valve stem and… … the chain causes the release of the latch engaging the ployed instead. Thereis also a polar axis, lower down, CURTIS’ LIQUID MEASURING DEVICE. angle lever, and the coiled spring on the valve stem and not shown in the picture. then closes the valve. The mounting is so arranged as to receive two…
Internet Archive · Public domain (published before 1931). Free to use for anything.
