52 LEATHER BELTING 



The belt was put up new on May 3ist and the tension entered 

 in the record. The belt being new, an entry was made in 

 the proper column showing that its tension should be measured 

 on the first day of June, and a memorandum to that effect 

 was placed in the tickler file, which will be described later. 

 On the first day of June the tension of the belt was again 

 measured and found to be 200 Ib. or 100 Ib. on each spring 

 balance. As the minimum tension to which a belt can be 

 allowed to fall would be 76 Ib. on each balance, it was un- 

 necessary to shorten the belt and it was accordingly put back 

 on the pulleys and a memorandum entered for the tension 

 to be measured forty- eight hours later, or on June 3d. On 

 June 3d the tension was measured and found to have fallen 

 to 70 Ib. on each balance, or 6 Ib. per balance less than 

 the minimum. An inch and a quarter was accordingly 

 removed from the belt, the amount being determined by 

 using the chart Fig. 32 on page 95, bringing its tension 

 again to 130 Ib., and a memorandum was entered to again 

 weigh the tension on the 7thof June, four days later. On the 

 7th of June the tension was found to have dropped to 80 Ib. 

 per balance, and if in. was removed, bringing the tension 

 back to 128 Ib. per balance. The performance of the belt 

 from that point on is clearly shown by the record and no 

 further explanation is deemed necessary. 



Belt-fixer's Orders. Fig. 12 is a form of order issued to 

 the belt-fixer. This carries on it information which the 

 belt-fixer requires, including the symbol of the belt, which 

 also gives its location; the length, which is the length around 

 the pulleys as measured by the steel tape; the maximum and 

 minimum tensions between which the belt should operate. 

 It also contains spaces in which the belt-fixer enters informa- 

 tion required from him for entry on the belt record. This order 

 is issued when a new belt is to be put up or an old one retight- 

 ened. After doing the work, the belt-fixer returns the order 

 to the person who is in charge of belt maintenance, with the 



