From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Blueprint for a 'KTA' Type 'K' drip plug with a table of corresponding part numbers.
| Identifier | ExFiles\Box 26\5\ Scan204 | |
| Date | 10th February 1928 | |
| B-1763 -24 S.A.E. THREAD 7/8" 11/16 11/16 3/8 3/32 5/16 BIJUR KTA 1/8 PIPE THREAD. RATE NO. 7/8 APPX. 9/16 5/16 7/16 HEX. NOTE -PATENTS PENDING- UNLESS OTHERWISE SPECIFIED TOLERANCE OF ALL DIMENSIONS IS PLUS OR MINUS .010" PRINTED ON TRACING PAPER "137" K & E CO., N.Y. RATE | SYMBOL | PART NO. 00 | KTA - 00 | B-1764 0 | KTA - 0 | B-1765 1 | KTA - 1 | B-1766 2 | KTA - 2 | B-1767 3 | KTA - 3 | B-1768 4 | KTA - 4 | B-1769 5 | KTA - 5 | B-1770 6 | KTA - 6 | B-1771 BIJUR LUBRICATING CORP., N.Y. DRIP PLUG "KTA" TYPE "K" DR.-HY{Tom Haldenby - Plant Engineer} DT.-10.2.28 CK{Mr Clark}'D- DT. B-1763 | ||