[LB049278], Letter from Eb. Williams Thomas to Edison Phonograph Works, May 8th, 1891
https://edisondigital.rutgers.edu/document/LB049278
Transcription
Edison Phono Wks. Laboratory 5/8/91
Gentlemen [?]
The following is a list of fittings + material required for the magnet frames of seven ore separators.
49 wrought iron loop straps-see drawing 154 washers 4” dia for ¾” bolt use the
7 brake loops ½” 20” to centre 5 ½” inside dia heavy pattern
42 “ “ “ 18” “ “ “ “ “ 260- ¾ wroughtwasher
2 pcs 1 ¼ pipe 16 1/8” long 260 5/8 “ “
28 “ “ 17 ½” “ Yours truly
49 “ brass pipe 3/4x21 1/8 Edison Laboratory
49 brass bolts 5/8x28 ½ Thomas
28 “ “ 5/8x5
28 iron bolts 1x28 ½
28 “ “ 1x27
35 “ “ 3/4x 2’7 1/2 “
7 “ “ 3/4x2’7 ½”
35 “ “ 3/4x2’6”
31 “ “ 3/4x19
7 “ “ 3/4x14
84 “ “ 3/4x12
7 “ “ 3/4x10
4 “ “ 3/4x8
1 “ “ 5/8x8’
“ 5/8x8 ½
Lag screws 3/8x3
Washer 4” dia for 1” bolts-see pattern
Use only the heavy pattern