AMMONIA OR ACID PUMPS.
In pumping ammonia it is of the greatest importance that this mechanism be simple and compact owing to the peculiar properties—oftentimes dangerous—inherent to ammonia.
The plain slide valve with crank, shaft and fly-wheel probably is less liable to give trouble than many of the other styles of pumps,and a full stroke is always assured.
The pump here presented (Fig.456) occupies little floor space and is easily accessible; the bucket plunger is used and also a slotted yoke in place of a connecting rod.
The column is in two parts bolted together. In case of accident to either part duplicates may be quickly substituted.