j 3 o PROPOSED SYSTEM 



CLASS 7. 



Symbols for Operations causing Changes in Form by Scraping 



Tools, 



.Scraping 701 Tumbling 713 



Filing by hand 711 



" rotary 712 



Grinding 721 



Lapping 722 



CLASS 8. 

 Symbols for Operations causing Changes in Objects by uniting them. 



Welding 801 Basting 841 



Melting together 802 



Brazing 811 



Soldering 812 



Gluing 813 



Nailing 831 



Screwing 832 



Riveting 833 



Sewing ........................ .. 842 



Mixing ........................... 851 



Assembling (includes loading) ...... 852 



Packing .......................... 853 



Assorting and other operations ex- 



pressing ^zV-union ............... 891 



See remark, page 127. 



CLASS 9. 



Symbols for Miscellaneous Operations. 



Superintending 901 j Gauging 922 



Designing 902 Inspecting 923 



Recording (clerks) 903 



Miscellaneous work 991 



Fitting or finishing 911 



Weighing 921 



handwork 992 



machine work 993 



EXAMPLES IN PRACTICE. 



I have retained the following list, which is substantially that 

 issued at Frankford Arsenal for the use of the shops, so as to 

 show to those familiar with both methods how much more clearly 

 the new plan works. 



Shop-Orders 49 and 107 are supposed to refer to the manu- 

 facture of certain quantities of the old service folded-head, and 

 of the new solid-head, cartridges, respectively. S-O. 8 requires 

 the making of a special machine for the use of the shops ; which 



