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).
Price list and promotional leaflet for Drake Lock-Nuts.
| Identifier | ExFiles\Box 77\5\ scan0228 | |
| Date | 27th November 1924 guessed | |
| PRICE LIST IN ORIGINAL BOXES BOLT SIZE | STANDARD HEXAGONS | U. S. F.{Mr Friese} Threads Per Inch | Total Height of Nut | Ship'g W't in Lbs. Per 100 Nuts | Boxed | Hex. Steel Spec. Screw Stock Per 100 1/4 | S. A.{Mr Adams} E.{Mr Elliott - Chief Engineer} | 28 | 3/8 | 2 | 100 | 4.00 1/4 | U. S. S. | 20 | 15/32 | 4 | 100 | 4.50 5/16 | S. A.{Mr Adams} E.{Mr Elliott - Chief Engineer} | 24 | 29/64 | 2 1/2 | 100 | 4.50 5/16 | U. S. S. | 18 | 9/16 | 5 | 100 | 5.00 3/8 | S. A.{Mr Adams} E.{Mr Elliott - Chief Engineer} | 24 | 1/2 | 3 | 100 | 5.00 3/8 | U. S. S. | 16 | 5/8 | 6 1/2 | 100 | 6.50 7/16 | A.L.A.M. | 20 | 39/64 | 5 | 100 | 6.50 7/16 | U. S. S. | 14 | 45/64 | 9 | 100 | 7.50 1/2 | S. A.{Mr Adams} E.{Mr Elliott - Chief Engineer} | 20 | 48/64 | 7 | 100 | 8.00 1/2 | U. S. S. | 13 | 51/64 | 13 | 100 | 9.00 9/16 | S. A.{Mr Adams} E.{Mr Elliott - Chief Engineer} | 18 | 25/32 | 10 1/2 | 100 | 10.00 9/16 | U. S. S. | 12 | 29/32 | 17 | 100 | 11.00 5/8 | S. A.{Mr Adams} E.{Mr Elliott - Chief Engineer} | 18 | 7/8 | 16 | 50 | 12.00 5/8 | U. S. S. | 11 | 1 1/32 | 24 | 50 | 13.00 3/4 | A.L.A.M. | 16 | 1 1/16 | 21 | 50 | 16.00 3/4 | U. S. S. | 10 | 1 7/32 | 37 | 50 | 17.00 7/8 | S. A.{Mr Adams} E.{Mr Elliott - Chief Engineer} | 14 | 1 7/32 | 30 | 50 | 21.00 7/8 | U. S. S. | 9 | 1 11/32 | 52 | 50 | 24.00 1" | S. A.{Mr Adams} E.{Mr Elliott - Chief Engineer} | 14 | 1 3/8 | 45 | 50 | 32.00 1" | U. S. S. | 8 | 1 17/32 | 70 | 50 | 35.00 1 1/8 | U. S. S. | 7 | 1 3/4 | 97 | 50 | 48.00 1 1/4 | U. S. S. | 7 | 1 29/32 | 127 | 50 | 66.00 1 3/8 | U. S. S. | 6 | 2 3/32 | 175 | 20 | 98.00 1 1/2 | U. S. S. | 6 | 2 1/8 | 215 | 20 | 138.00 1 5/8 | U. S. S. | 5 1/2 | 2 3/8 | 275 | 20 | 186.00 1 3/4 | U. S. S. | 5 | 2 15/32 | 325 | 20 | 260.00 2" | U. S. S. | 4 1/2 | 2 23/32 | 450 | 20 | 430.00 To 3" U. S. S. to order. DISCOUNTS ON APPLICATION. PRICES SUBJECT TO CHANGE WITHOUT NOTICE IN ASSORTED BOXES AS FOLLOWS: Assortment No. 1 S. A.{Mr Adams} E.{Mr Elliott - Chief Engineer} 1/4 - 5 5/16 - 15 3/8 - 35 7/16 - 30 1/2 - 15 100 - $5.85 List Shipping Weight 4 Lbs. Assortment No. 3 U. S. S. 3/8 - 40 7/16 - 20 1/2 - 40 100 - $7.70 List Shipping Weight 11 Lbs. Assortment No. 2 S. A.{Mr Adams} E.{Mr Elliott - Chief Engineer} 3/8 - 28 7/16 - 24 1/2 - 20 9/16 - 17 5/8 - 8 3/4 - 3 100 - $8.00 List Shipping Weight 7 Lbs. Assortment No. 4 U. S. S. 3/8 - 35 7/16 - 10 1/2 - 35 5/8 - 15 3/4 - 5 100 - $9.30 List Shipping Weight 14 Lbs. A Finished Job Assortment No. 5 U. S. S. 5/8 - 20 3/4 - 15 7/8 - 10 1" - 5 50 - $9.30 List Shipping Weight 20 Lbs. Approved by Noted American and Foreign Engineers Mr. J.{Mr Johnson W.M.} Howard Gould, a noted engineer of Detroit, Mich., says: "I consider it the best lock nut ever offered to the trade." Mr. E.{Mr Elliott - Chief Engineer} L. Oliver, President of the Oliver Continuous Filter Co., and the Doak Gas Engine Co., says: "We feel that your lock nut is by long odds the very best lock nut that has ever been placed on the market." Mr. Silas Christofferson, noted aeroplane engineer, said: "This is the only lock nut that has ever interested me." Mr. John T. Scott, a noted engineer and builder of battle-ships, says: "I think it more mechanical and best for users than any other I know." Art Smith, world famous aviator and aeroplane mechanic, says: "My three aeroplanes in Japan were equipped with 'Drake Lock Nuts,' that remained absolutely tight under most severe tests. I cheerfully recommend them where a nut that will hold is essential." We could quote hundreds more like these. Compared with any other lock nut in the market of even half the quality and efficiency the "Drake Lock Nut" is as low or lower in price. Write today for sample, and make any test you wish. Whitworth Standard thread to order. DRAKE LOCK-NUTS TRADE MARK REGISTERED U. S. PATENT OFFICE MILLED FROM THE BAR "Never Jar Loose" Think this over! The strength of a chain only equals its weakest link and the best engine or machine built is useless if a vital nut jars loose. Drake Lock-Nut Co. FOLSOM STREET AT 10th San Francisco, Cal.{Mr Calvert}, U. S. A.{Mr Adams} Eastern Plant and Office: CLEVELAND, O.{Mr Oldham} | ||