96 PROPOSED SYSTEM. 



the number of some unfinished job. This is so arranged that 

 when the job is finished, the paster may be torn off, carrying the 

 number with it. 



Trays. 



It is often desired to have large accumulations of cards belong- 

 ing to completed jobs so arranged as to be readily consulted. 

 For this purpose the swinging trays, elsewhere shown, are very 

 convenient. 



The device is like an ordinary chest of drawers, except that 

 instead of sliding the drawers out and in, they are swung on the 

 rollers from which they hang. The stops shown at (a) on the 

 cords prevent the trays from tipping in one direction, while they 

 permit them to tip freely in the other, so as to expose their con- 

 tents in the most convenient way for examination. 



To examine the contents of the top tray, the front of it should 

 be depressed, carrying with it the trays lying beneath ; the lower 

 trays should be swung out first, and then tipped. They are 

 divided by partitions parallel to the plane in which they swing, so 

 that being filled at first in the end of each compartment furthest 

 from the front, the weight of the contents brings the stops 

 naturally against the pulleys, and preserves the tray in a horizontal 

 position, to which, when released from the inclined position 

 suitable for examination, they tend of themselves to return. 



This arrangement is simple, cheap, and is found in practice to 

 be very convenient. 



Post-office. 



In order to secure the prompt and safe distribution of the 

 cards, the following postal system was devised : 



By each principal desk is a box with two divisions labeled 

 " In " and " Out." These boxes are visited once an hour, or 

 oftener, by the office orderly for the office, and an errand boy 

 for the shops, and their contents collected and distributed in each 

 jurisdiction. 



For passing the mail from one jurisdiction to the other, the 

 mail pouch is hung upon a movable hook, connected with a sign 

 outside the building, which sign, by the weight of the pouch 



