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).
Specification sheet for a Morgan Stuart patent gland assembly, detailing arrangements, material properties, and dimensional data.
| Identifier | ExFiles\Box 149a\3\ scan0291 | |
| Date | 1st January 1940 | |
| ARRANGEMENT IN EXISTING STUFFING BOX ARRANGEMENT WHERE STUFFING BOX IS TOO SMALL & USING ADDITIONAL END CAP ARRANGEMENT IN AUTOMOBILE PUMP ALTERNATIVE METHOD OF PROVIDING ABUTMENT FOR RUBBER CIRCLIP METAL WASHER MORGAN STUART PATENT GLAND ASSEMBLY THE MORGAN CRUCIBLE CO LTD BATTERSEA WORKS. LONDON S.W.11 SK. NO. 40/217 MATERIALS RECOMMENDED FOR SEALING FACES GREY CAST IRON FOLLOWING SPEC IS SUITABLE SILCON 2/2.2 % SULPHUR 0.10 % MAX PHOSPHORUS 0.20 % MANGANESE 0.55-.70 % NICKEL 0.6-8 % CHROMIUM 0.2-3 % COMBINED CARBON 0.4-6 % TOTAL CARBON 3.25/3.45 % 20/30 STEEL BUT NO SCRAP. BRINELL APPROX. 220. SURFACE - FINE TURNED. F.H. STAINLESS STEEL THOS FIRTH & JOHN BROWN SILCON 0.60% MAX MANGANESE 0.50% " SULPHUR 0.05% " PHOSPHORUS 0.05% " CHROMIUM 12/14.5 % CARBON 0.25/0.35 % HEAT TO 950°/1000°C - SOAK ACC TO MASS - QUENCH IN OIL - TEMPER IN OIL 180°/200°C FOR TWO HOURS, BRINELL AFTER TREATMENT SHOULD NOT BE LESS THAN 418 SURFACE. GROUND & POLISHED PHOSPHOR BRONZE N° 7 COG-WHEEL BRAND. PHOSPHOR BRONZE CO BRINELL 120 MIN. SURFACE FINE TURNED. TABLE OF DIMENSIONS: HEADERS: A: SHAFT DIA B: RUBBER WORKING LENGTH RUBBER WASHER: OD, ID, TH CARBON RING: OD, ID, TH DRIVING PIN: DIA, PROUD OF SHAFT, LOAD IN LBS SPRING: COMPD LENGTH, FREE LENGTH, ID RETAINING CUP: FLANGE DIA, OD, LENGTH DATA ROWS (A, B, RW-OD, RW-ID, RW-TH, CR{Mr Cra???ster / Mr Chichester}-OD, CR{Mr Cra???ster / Mr Chichester}-ID, CR{Mr Cra???ster / Mr Chichester}-TH, DP-DIA, DP-PROUD, DP-LOAD, S-COMPD, S-FREE, S-ID, RC{R. Childs}-FLANGE, RC{R. Childs}-OD, RC{R. Childs}-LEN): 1/2", 1/4", 1 1/8", 1/4", 30 THOU, 1 1/4", 1/2", 1/4", 1/8", 3/32", 2 1/2, 1/2", 7/8", 1", 1 1/4", 1", 3/16" 5/8", 1/4", 1 1/8", 5/8", 30 ", 1 1/4", 5/8", 1/4", 1/8", 3/32", 2 1/2, 1/2", 7/8", 1", 1 1/4", 1", 3/16" 3/4", 1/4", 1 1/4", 3/4", 30 ", 1 3/8", 3/4", 1/4", 1/8", 3/32", 2 1/2, 1/2", 7/8", 1 1/16", 1 3/8", 1 1/16", 3/16" 7/8", 1/4", 1 1/2", 7/8", 1/16", 30 ", 1 1/2", 7/8", 1/4", 1/8", 3/32", 2 1/2, 1/2", 7/8", 1 3/16", 1 5/8", 1 3/16", 3/16" 1", 5/16", 1 3/4", 9/16", 30 ", 1 7/8", 1", 5/16", 1/8", 3/32", 3, 1/2", 7/8", 1 5/16", 1 7/8", 1 5/16", 3/16" 1 1/8", 5/16", 2", 1 1/16", 30 ", 2", 1 1/8", 5/16", 1/8", 1/8", 3, 5/8", 1", 1 7/8", 2", 1 3/4", 3/16" 1 1/4", 5/16", 2 1/8", 1 1/8", 30 ", 2 1/8", 1 1/4", 5/16", 1/8", 1/8", 3, 5/8", 1", 1 7/8", 2 1/8", 2", 3/16" 1 3/8", 5/16", 2 1/4", 1 3/8", 30 ", 2 1/4", 1 3/8", 3/8", 1/8", 1/8", 3, 5/8", 1", 2", 2 1/4", 2", 3/16" 1 1/2", 5/16", 2 1/2", 1 1/2", 30 ", 2 1/2", 1 1/2", 3/8", 1/8", 1/8", 4, 3/4", 1 1/4", 2 1/8", 2 1/2", 2 1/8", 3/16" 1 5/8", 5/16", 2 5/8", 1 5/8", 30 ", 2 5/8", 1 5/8", 3/8", 1/8", 1/8", 4, 3/4", 1 1/4", 2 1/4", 2 5/8", 2 1/4", 3/16" 1 3/4", 5/16", 2 3/4", 1 3/4", 30 ", 2 3/4", 1 3/4", 3/8", 1/8", 1/8", 4, 3/4", 1 1/4", 2 3/8", 2 3/4", 2 3/8", 3/16" 1 7/8", 5/16", 2 7/8", 1 7/8", 30 ", 2 7/8", 1 7/8", 3/8", 1/8", 1/8", 4, 3/4", 1 1/4", 2 1/2", 2 7/8", 2 1/2", 3/16" 2", 5/16", 3", 1 1/4", 30 ", 3", 2", 3/8", 1/8", 1/8", 4, 3/4", 1 1/4", 2 5/8", 3", 2 5/8", 3/16" | ||