Misc Australia  Normally I try to combine different countries/makes when there are very few of one kind, but Australia's entries in the slide rule market is significant enough to give them their own page. The W&G is one of my most favorite slide rules, and also the most significant manufacturer in Australia. |
 REF ARCUS Brand Slide Rule |
ARCUS Brand Slide Rule Made in Australia for Max Wurker Pty Ltd, Similar construction to "Electro" model produced by Service Slide Rules. Front Scale (Extended) LL3, A(KW) [ B(PS), CI, C ] LL2 Back Scale [ S, L, T ] Back: Equivalents, Formulae and Trig identities Scan provided by Cyril Catt. Australia |
 REF C.O. Browne Cylindrical "Long Scale Rule" |
C.O. Browne Cylindrical "Long Scale Rule" Made in Australia by C.O. Browne. , No. F.C.46 Diameter 3", length 13" closed, 18" maximum Similar construction to Fowler Cylindrical Slide Rules. The single helical scale is marked on a cylinder about 2-3/4" in diameter and 4-1/2" long. The scale makes 50 turns around the cylinder, for a total length of 413" (34 feet, or 10.5 metres). It is marked to 4 significant figures at the top end, and can be read to 1 part in 20000. The inner core of the rule is covered with tables of constants, formulae, and conversion factor Scan provided by John Wolff. Australia |
CAL Slide Rules  S411 CAL Slide Rule No. 2 |
CAL Slide Rule No. 2 Assumed to be Made in Australia - Patent pending 7415/42 Note: CAL is also the initials for Australia's Copyright Agency Ltd. Similar construction to British Unique's but with a different wood Front Scale (Extended) LU, S, A [ B, R(CI), C ] D, T, LL Back: Equivalents, Formulae and Trig identities |
 REF Ben Jordan's Scale Of Proportions Slide Rule |
Ben Jordan's Scale Of Proportions Slide Rule For finding the dimensions of an engraving to be made smaller or larger than copy Made in Australia Front Scale: For Reductions: Copy ( Engraving) For Enlargemnets: Engraving ( Copy ) Scan provided by Cyril Catt. Australia Note: This was from an engraver near Sydney, New South Wales. It was made from the metal sheets used for engraving, and appear to be produced as advertising material, probably in the 1950s. |
Griffin Computors, Sydney  REF Griffin 121 Simplified Slide Rule |
Griffin 121 Simplified Slide Rule Made in Australia by Griffin Computors Front Scale (Extended) Units, C ( D ) Back: Blank Scan provided by Cyril Catt. Australia  SleeveNote: The Griffin was apparently made in Sydney about 1950, by a former airline pilot. He also made some simple concrete quantity calculators. Curiously, This was found in an LA bookshop run by an Australian. |
Service Slide Rule
- Sydney, Australia, 1954-1987  S440 Service Slide Rule - Electro |
Service Slide Rule - Electro Made by Service Slide Rule, Sydney, Australia Front Scale (Extended) LL3, A(KW) [ B(PS), CI, C ] LL2 Back Scale [ S, L, T ] Back: Equivalents, Formulae and Trig identities Original Owner: N. Fogarty/N.S.W. Australia |
 REF Service Slide Rule - Reed (for Electrical Engineers)
Designed by Joseph Grifith Reed, M.I.E., Aust. Chartered Engineer in 1935
Read this paper by David G. Rance: REED Riddle Solved (976KB pdf). |
Service Slide Rule - Reed (for Electrical Engineers) Made by Service Slide Rule, Sydney, Australia. Front Scale (Extended) inch // K, A [ B, CI, C ] D, L || cm Back Scale [ S, S&T, T ] Back: Equivalents, Formulae and Trig identities Well: D/L scale (Diameter to Length) scale better known as Nagaoka's coefficient. Note: The scale is more commonly known as Nagaoka's coefficient after its originator, the Japanese physicist Hantaro Nagaoka (1865-1950). Communication engineers often need to calculate the inductance of electrical windings, e.g. a solenoid of a certain length, a certain diameter and a number of windings. This previously unheard of 'Diameter to Length' (0 being the infinite length) logarithmic D/L coefficient scale is a masterly Reed innovation for reading off the Nagaoka factor. 'K' in the inductance formula in Microhenries - where d = the diameter in centimetres, b = the length in centimetres and n = the total number of turns. Without including the K factor there is a serious error due to magnetic non-uniformity when the coil is short and its length is comparable to its width. This was, for example, frequently the case in coils for the valve radio industry. (per David G. Rance). Scans by David G. Rance Collection, The Netherlands |
 REF Service Studio Slide Rule R.A. |
Service Studio Slide Rule R.A. Made by Service Studio Slide Rule, - 1943 Front Scale (Extended) A [ B, C ] D Back Scale [ S, L, T ] Back: Equivalents, Trig identities, Range Formulae Scan provided by John Oakhill, Australia |
Slide Charts of Australia, Sydney  REF SCA Circular Slide Rule |
SCA Circular Slide Rule (1973) Made in Australia by Slide Charts of Australia Front Scale (Extended) CI, C ( D, A, K, L) Back Scale Orginal Area (Conversion Factor, Converted Area) Scan provided by Cyril Catt. Australia |
 REF Unnamed Australian (Homemade?) Slide Rule |
Unnamed Australian (Homemade?) Slide Rule Made in Australia - Manufacturer Unkown Front Scale (Extended) K, A [ B, CI, C ] D, L Back: Blank Note: Wood construction with paper scales (like Lawrence slide rules) Scan provided by Cyril Catt. Australia |
 REF W&G 421 |
W&G 421 Closed Made in Melbourne, Australia - W&G Record Processing Co. Front Scale (Extended) 10in // L, A [ B, Reciprocal, C ] D, Cube || 25cm Back scale: [ Sin, Sin & Tan, Tan ] Archive - University of Melbourne, School of Physics Museum |
 S234 W&G 432 "Dual-Face" Comprehensive |
W&G 432 "Dual-Face" Comprehensive Made in Melbourne, Australia - W&G Record Processing Co. Front Scale LL (or LL3), L, A [ B, Reciprocal (or CI), C ] D, Cu, LL (or LL2) Back Scale SINE1, SINE2, KW [ HP, TANGENT1, TANGENT2, F ] Voltage Drop, Dynamo Efficiency Unique thumb wheel for sliding cursor! |
 S356 W&G 432 "Dual-Face" Comprehensive |
W&G 432 "Dual-Face" Comprehensive Made in Melbourne, Australia - W&G Record Processing Company Front Scale LL (or LL3), L, A [ B, Reciprocal (or CI), C ] D, Cu, LL (or LL2) Back Scale SINE1, SINE2, KW [ HP, TANGENT1, TANGENT2, F ] Voltage Drop, Dynamo Efficiency Conventional Cursor |
  ISRM W&G 443 Artillery Slide Rule, VFA 3400 Mk1  W&G 443 Instructions 6Mb |
W&G 443 Artillery Slide Rule, VFA 3400 Mk1 1945 Made in Melbourne, Australia - W&G Record Processing Co. Front Scale (extended) L, A [ B, Reciprocal (or CI), C ] D, Cu Back Scale (extended) SINE1 0°-90° & 0-1.000 [ ANGLE2 5.8°-90° @ 174°-90° , ANGLE1 0°34'-5°30' ] RANGE 1-10, TAN 0-45° & 0-1.00 Conventional Cursor Donated by Stephen Sheen in memory of his father. 
 This instrument belonged to the late WX1844 Gunner George Sheen (portrait from 1966) of the 2/3rd Australian Field Regiment (6th Division, 2nd AIF) during WWII. He obtained this at the end of the war. A Christmas menu of 1941 is signed by members of his battery. The emblem is for an officer of the Royal Regiment of Australian Artillery (RAA) and shows the The (British) Lion and (Australian) Kangaroo representing "imperial solidarity". |
 REF W&G 454 "Dual-Face" Survey |
W&G 454 "Dual-Face" Survey Made in Melbourne, Australia - W&G Record Processing Co. Front Scale Sine, Cos [ Angle 2, Angle 1 ] Range, Tan, Cot Back Scale L, A [ B, Reciprocal, C ] D, Cu Archive - Greg Scott Collection Instructions 1.05Mb |
 REF W&G 465 "Dual-Face" Shipping Freight & General Purpose Slide Rule |
W&G 465 "Dual-Face" Shipping Freight & General Purpose Slide Rule Made in Melbourne, Australia - W&G Record Processing Co. Front Scale L, A [ B, Reciprocal, CI, C ] D, Cu, K Back Scales Pounds-Shillings, Shillings-Pence, T/R, P, D2, D3/D1, CC Archive - Not in Collection |
 S570 W&G 476 "Dual-Face" Trigonometrical (Stadia) |
W&G 476 "Dual-Face" Trigonometrical (Stadia) Made in Melbourne, Australia - W & G Record Processing Co. Front Scale LL (or LL3), L, A [ B, Reciprocal (or CI), C ] D, Cu, LL (or LL2) Back Scale Stadia V, H, Chord, A [ B, SIN<6 COS>5, SIN>5 COS <6, C ] D, TAN 30-6, COT 84-90, TAN 5-45, COT 85-45 Conventional Cursor Original Owner: Norman Leslie Foley, 254 Alderman Rd, Glasgow, Scotland Was used to design Battleships during WWII |
Looking for Examples of: |
W&G MkII Pilot Ballon Slide Rule (1928-1943+) |
 REF W&G Aerial Dead Reckoning Computer R.A.A.F. Mk 1 |
W&G Aerial Dead Reckoning Computer R.A.A.F. Mk 1 Made in Australia by White & Gillespie Front Scale: Distance Naut Miles, True Air Speed (Time Min, Hrs, Density Altitude, Air Temp ) Back Scale: Wind Correction Angle( True Heading ) Scan provided by Cyril Catt. Australia |
 REF W&G Slide Rule Fv |
W&G Slide Rule Fv Made in Australia by by White & Gillespie Front Scale Elevation, ho [ Frequency ] Ohms Back Scale Nomagraph: Km, h', degrees Scan provided by Cyril Catt. Australia |
 REF W&G Proportion Calculator |
W&G Proportion Calculator Made in Melbourne, Australia - W&G Record Processing Co. Front Scale Depth [ Width ] Archive - not in collection |
 REF Yabsley Acreage Calculator |
Yabsley Acreage Calculator (1972) Made in Australia - Designed and made by G.M. Yablsey Front Scale (Extended) $ balance per Claim ($ per cwt) 2 Ccwt/acre, 4 cwt/acre Back: Instructions Note: This was made by G.M. Yabsley, an agronomist colleague, of Cyril Catt in the NSW Dept. of Agriculture, to ease the burden of checking a few hundred applications for a former Government fertilizer subsidy. Scan provided by Cyril Catt. Australia |
