102 W. & L. E. GURLEY, TROY, NEW YORK 



Gurley Graphic Water Stage Registers 



Normal Vertical Range, to 10 feet 

 I nne Scale, 7 days, 4 days, or 1 day 



I'.U.-nlr.l Aiiu'ii-l I. r.l . 



Fig. 48 on page 105 illustrates an improved Graphic 

 Register having several unique and valuable features. It is of 

 simple construction, with few parts; is designed for easy 

 operation, and adapted for a wide range of conditions. Its 

 construction is such that no lost motion will develop from 

 continuous service and it can be operated with minimum care 

 and expense. 



The following vertical scales can be furnished: 



to 1 foot, to 5 feet, to 15 feet, 



to 1 */2 feet, to 6 feet, to 20 feet, 



Oto2 feet, Oto 8 feet, to l l /2 meters, 



to 3 feet, to 10 feet, to 3 meters. 



to 4 feet, to 12 feet, 



A time scale of 1 day, 4 days, or 7 days can be furnished. 

 As the record of stage is made around the cylinder, there is no 

 limit to the number of revolutions possible and, hence, to the 

 range of stage. Therefore, it is advisable to use as low a range 

 as possible and hence a more accurate reading of the water 

 stage. If occasionally the water stage is above the range of 

 the register, no trouble will be experienced in reading the 

 water level. 



ADVANTAGES OF CURLEY GRAPHIC REGISTERS 



Constancy of performance. These registers have been 

 brought to their present high state of excellence through years 

 of experiment. They have been developed to meet actual field 

 conditions and are performing with satisfaction under a great 

 variety of physical conditions in all parts of the world. Once 

 properly installed they require a minimum of attention. 



Low cost. From the standpoint of maintenance and 

 operation Gurley Water Stage Registers represent the smallest 

 possible permanent investment. First cost is also reduced to a 

 minimum in these registers. 



