42 U. S. COAST AND GEODETIC SURVEY 



Occasionally. — As frequently as necessary clean float well intake 

 (pars. 132-135). 



115. Placing paper on gage. — Before placing the paper on the 

 gage a note should be made at the beginning of the roll giving the 

 name of the station, the date, the scale of the gage, the kind of time 

 used, and the name of the person in charge. The supply roller (4, 

 fig. 4) is removed from the gage and passed through the central hole 

 in the blank roll of paper. The roller is then replaced in its supports 

 so that the loose end of the paper will pass from below inward toward 

 the main roller (fig. 10) . The tension springs (5, fig. 4) at the sides are 

 moved down so that they will bear against the ends of the roll of paper. 

 These springs may be bent slightly if necessary to hold the roll firmly 

 in place and provide the desired tension in the paper as it is drawn 

 forward. 



116. With the main roller disconnected from the motor clock by 

 throwing out of gear the carrier arm (34, fig. 6), the paper is now 

 passed over the main roller and the end inserted in the slot in the 

 receiving roller (17, fig. 5) where it is locked in place by turning the 

 core in the sleeve of the roller. The end of the paper should be cut 

 square before attaching it to the receiving roller and care must be 

 taken to secure it evenly so that the paper will wind up smoothly on 

 the roller. Several turns of the paper are now wound on by turning 

 the roller in a direction such that the paper passes from the main 

 roller over the top of the receiving roller. The main roller is then 

 again connected with the motor clock by throwing the carrier arm 

 into gear with the carrier wheel. Finally, the tension weight is wound 

 up and the paper is ready for the record. 



117. Changing paper on gage. — On the first day of each calendar 

 month, or the following day if the first occurs on Sunday, the roll of 

 paper on the gage should be changed. A comparative time and staff 

 note (pars. 120-126) must be entered on the old roll before removal 

 from the gage and another note entered on the new roll immediately 

 after installation. Before removing the old roll, place the tension 

 weight upon some support to remove the strain on the paper and then 

 disconnect the main roller from the motor clock by throwing out of 

 gear the carrier arm (34, fig. 6). A few feet of the paper remaining 

 on the supply roller is wound upon the receiving roller and the paper 

 cut. The receiving roller is then removed from me gage after pressing 

 on the release buttons (18, fig. 5) at the sides. The paper itself is 

 removed from the roller after being released by turning the core 

 inside the shell of the roller. For the installation of a new roll of 

 paper see paragraphs 115-116. 



118. Adjusting pencils. — For the original setting of the datum 

 pencil a position near the middle of the paper is in general recom- 

 mended. After having been once set, any change in its position should 

 be avoided without good cause, but when necessary an explanation 

 should be noted in the record. When securing the datum-pencil 

 holder in place care must be taken to provide sufficient clearance for 

 the passing of the recording-pencil arm, special attention being given 

 to the position of the tripping hook (36, fig. 7) just before the hour, 

 since at that time this hook is at its lowest position. If difficulty is 

 experienced in securing the datum-pencil holder in position by its 

 clamping nut (22, fig. 7), remove this nut together with the datum- 



