rove, Iowa. strument stands on an elevated platform 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 its lower end being adapted to engage guideways… … the chain causes the release of the latch engaging the ployed instead. There is 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…
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