1096 



WATER-METER 



foreign and injurious substances passing into the drum of meter. D is a filter-case screw, 

 which connects it with the meter, and is for the purpose of attaching to and detaching 

 from the meter-case, to cleanse the filter c when required. E E is an inner filter, for the 

 purpose of preventing any foreign and injurious matter which might pass the first filter, 

 c (whether from being broken or from any other cause) from entering into the drum. 



2093 



t is an inlet chamber of the meter-case x, into which the water enters, and is con- 

 ducted into the measuring drum H by means of the conducting tube o. o is the inlet 

 or conducting tube into drum. H is the drum or measuring medium of meter, -which is 

 regulated so as to give uniformity of measurement by the adjusting vanes a a. j is 

 an oil-cup attached to bottom of drum, which encloses and lubricates the bottom of 

 spindle x. At the upper end of the oil-cup there is a steel boss, which the drum revolves 

 upon, x is the bottom spindle, which has a steel pivot, on which the drum revolves, 

 and is enclosed by the oil-cup or chamber J. i L is the outlet chamber of the meter- 



2094 



case x, into which the water is measured or delivered from the drum, and is discharged 

 through the outlet end M. N is the outlet union of case, for connecting to the consumer's 

 or service pipe, o o is the spindle of drum, having a steel boss at the bottom, which 

 revolves upon the steel pivot of the spindle K, and a collar at top, working into the 



