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).
Data sheet for Bowdenex cable assemblies, detailing standard end fittings and ordering information.
| Identifier | ExFiles\Box 120\2\ scan0026 | |
| Date | 10th June 1936 guessed | |
| TABLE 4. STANDARD FIXED (SWAGED) FORK ENDS PIN DIA | W1 | W2 | L1 | L2 | L3 | D | FOR CONDUITS 1/4" | 1/4" | 7/16" | 1/2" | 9/16" | 11/16" | 1" | .292 | T2AH, T3, T3H, T4 1/4" | 1/4" | 1/2" | 9/16" | 11/16" | 1" | .365 | T5 1/4" | .287 | 9/16" | 11/16" | 7/8" | 1 1/16" | .365 | T5 5/16" | .287 | 9/16" | 11/16" | 7/8" | 1 1/16" | .365 | T5 5/16" | 1/4" | 5/8" | 15/32" | 15/16" | 1" | .365 | T5 5/16" | 5/16" | 5/8" | 23/32" | 15/16" | 1 1/8" | .365 | T6, T6A, T6H 3/8" | 3/8" | 3/4" | 1" | 1 1/16" | 1 1/8" | .365 | T6, T6A, T6H 3/8" | 1/4" | 3/4" | 1" | 1 3/16" | 1 3/8" | .462 | T7 7/16" | 1/2" | 7/8" | 1" | 1 3/16" | 1 3/8" | .493 | T7, T7/70 1/2" | 1/2" | 1" | 1 1/8" | 1 3/16" | 1 3/8" | .493 | T7, T7/70 9/16" | 9/16" | 1 1/8" | 1 3/16" | 1 3/8" | .493 | T7, T7/70 TABLE 5. STANDARD SCREWED FORK ENDS. PIN TAPPED DIA | FORGED (L1, L2, W1, W2) | MACHINED (L1, L2, W1, W2) 1 B.S.F 1/4" | 7/8" | 3/4" | 3/8" | 13/32" | 19/32" | 21/32" | 1/4" | 1/2" 5/16 B.S.F 5/16" | 1" | 1/4" | 3/8" | 1/4" | 13/32" | 3/4" | 5/16" | 5/8" 3/8 B.S.F 3/8" | 15/16" | 1 3/8" | 1/2" | 1/4" | 29/32" | 1 3/32" | 3/8" | 3/4" 7/16 B.S.F 7/16" | — | 1/4" | — | — | 1 3/32" | 1 1/4" | 7/16" | 7/8" 1/2 B.S.F 1/2" | — | 1/2" | 11/16" | 1/16" | 1 1/32" | 1 1/2" | 1/2" | 1" 9/16 B.S.F 9/16" | — | — | — | — | 1 3/16" | 1 9/16" | 9/16" | — 5/8 B.S.F 5/8" | 1 1/16" | 1 7/8" | 13/16" | 1 1/16" | — | — | — | — HOW TO ORDER Bowdenex CABLE ASSEMBLIES GIVE THE FOLLOWING PARTICULARS: Conduit Type ................................. No. Off............... "" Length L.1 .................................... Cable Type ...................................... "" Length L.2 ................................... Abutment Type A1................................. Is "" A2 Required ............................ Is "" A3 Required ............................ End Piece, B, Type............................. No. Off............... "" "" B, L.3................................. Screwed............... "" Fork, C, Type............................. No. Off............... "" "" C, Internal width ............................ "" "" C, Pin Dia. ................................. "" "" C, Shank Tapping* ........................... *only required if screwed fork end is fitted over screwed end piece. WHENEVER TIME PERMITS, SUBMIT YOUR PROPOSED LAYOUT FOR OUR APPROVAL Bowdenex Regd. Trade Mark. Patent Nos. 412367, 428937 and Pending. DATA SHEET No. 1 “CABLE ASSEMBLY, WORKING LOADS, STANDARD END FITTINGS.” In its simplest form a Bowdenex cable assembly is usually arranged as above illustrated, and consists of a Conduit, or outer sheathing, “A”, through which passes a cable “D”. The ends of the conduit are rigidly fixed in, and finished off by, abutments “B”. It is always desirable to provide for lubrication by fitting, at “C”, a lubricating abutment. The cable ends may be finished off in many ways, the most usual being that illustrated, comprising a fixed fork “E”, and an adjusting screwed end “F.{Mr Friese}” These end pieces are permanently fixed to the cable by swaging. This data sheet is introduced for the guidance of Drawing and Design Offices and gives our Standard Range of Fittings for an assembly as above. We have, in addition, many fittings not herein described and we particularly ask designers to enlist our co-operation in proposed layouts at an early stage, thereby enabling us to advise in the choice of suitable standard fittings and to ensure that the mechanism is laid out in the most efficient and economical way. Bowdenex mechanisms are frequently employed in conjunction with rods; such a layout is always to be preferred in four wheel brake designs where there is a marked difference in length between the brake cross shaft and the front and rear wheels. The most effective braking is obtained when the Bowdenex leads to all wheels are approximately equal in length. Special female end pieces are available to receive rods screwed B.S.F. Remote control mechanisms operating over distances up to 150 feet or more are best arranged with straight runs having conduit of Steel Tube and Bowdenex conduit at bends. USE Bowdenex FOR ALL FORMS OF REMOTE CONTROL. EFFICIENT — ECONOMICAL — DURABLE REMAINS CONSTANT IN LENGTH NO MATTER HOW BENT OR STRAIGHTENED, IS VIRTUALLY INCOMPRESSIBLE AND REDUCES LOST MOTION TO THE MINIMUM. IT SOLVES THE PROBLEM OF “HOW TO GET THERE” NEATLY AND EFFICIENTLY. | ||