Blueprint for a 'KTB' Type 'K' Drip Plug, showing dimensions and a table of part numbers.
| Identifier | ExFiles\Box 26\5\ Scan202 | |
| Date | 10th February 1928 | |
| B-1772 3/8 11/16 5/16 3/32 3/8 - 24 S.A.E. THREAD. 5/8 9/16 7/16 HEX. BIJUR KTB RATE NO. 1/8 PIPE THREAD. NOTE -PATENTS PENDING- UNLESS OTHERWISE SPECIFIED TOLERANCE OF ALL DIMENSIONS IS PLUS OR MINUS .010" PRINTED ON TRACING PAPER 197 K & E CO., N.Y. TABLE: RATE | SYMBOL | PART NO 00 | KTB-00 | B-1773 0 | KTB-0 | B-1774 1 | KTB-1 | B-1775 2 | KTB-2 | B-1776 3 | KTB-3 | B-1777 4 | KTB-4 | B-1778 5 | KTB-5 | B-1779 6 | KTB-6 | B-1780 BIJUR LUBRICATING CORP., N.Y. DRIP PLUG "KTB" TYPE "K" DR. HM. {Capt. W. Hallam - Head Repairs} DT. 10.2.28 CK {Mr Clark} 'D. {John DeLooze - Company Secretary} DT. B-1772 | ||
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).