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Ausschuss fuer Wirtschaftliche Fertigung (AWF): SR 751

AWF SR 751

Details of: Ausschuss fuer Wirtschaftliche Fertigung (AWF) - SR 751

Type? Usually a generic name preceded by the form if not standard linear length - e.g. Pocket Enhanced Mannheim. For special models often supplemented by its function/use - e.g. meteorology. Sometimes a suffix is needed to distinguish between different versions - e.g. early or late. Blank but with hand-drawn scales for Machining
Sort? L/C/D/T/W/X where L=Linear, C=circular, D=Drum, T=tubular, W=watch, X=miscellaneous (i.e. the rest) L
Construction? Basic construction form of the body i.e. Closed/solid frame or Open frame or Duplex or Other Closed/solid frame
Material? Basic description: ivory/bone/wood/bakelite/plastic/metal/cardboard or combinations e.g. wood/veneered, wood/painted, etc cardboard/plastic
Length? Mostly length in cm or ” (inches) of the D scale but excluding any scale extensions. But for circular or watch slide rules it is the diameter & for tubular or drum slide rules it is the overall linear scale length. For other mechanical aids it is the physical length. 21cm
Scales front? Mostly standardised (not maker’s) symbols for scales on front of stock e.g. A = X² (1-100) but § = generic symbol for any non-standard scale. Scales between solidi (/ /) are on the slide(s) whereas a vertical line ( | ) or reversed solidus ( \ ) + a symbol denotes scale(s) on a straight or bevelled edge. § / §,§ / §
Scales back? Mostly standardised (not maker’s) symbols for scales on back of stock e.g. S = sine (5° to 90° & 85° to 0°) or sin(x) but § = generic symbol for any non-standard scale. Scales between solidi (/ /) are on the back of the slide(s). / §,§ /
Cursor type? Basic description (incl. material) + no. of hairlines, etc on any cursor(s) or alternative to a cursor - e.g. a stylus plastic - 1 hairline
Condition? Cn where n = 0-6 based on Herman van Herwijnen’s condition/quality scale C3
Date? YYYY for year(s) of production or an approximation/range of years 1930s
Extras? Basic description of any accessories - e.g. case or stand + where relevant, an accreditation for image, etc green plastic pouch with AWF logo in relief
Instructions? Details like “on back of rule” and/or language of instruction sheet/booklet - generic or instructions for common layouts usually not listed
Comments ? Any special or noteworthy traits + significant use-related facts + pertinent details of scales/tables in well of stock + any significant tables, etc on the back of the stock

made by Hans Seehase - now part of the impressive AWF collection of fellow collector Karl Kleine

In-Out? MM-YYYY / MM-YYYY of the date added/left the collection or <YYYY if exact MM-YYYY no longer known <2005/

All of:  Ausschuss fuer Wirtschaftliche Fertigung (AWF) new search?

ModelType
SR 701 Machining Time poly-slide (2) - early
SR 702 Belt Performance & Belt Speed poly-slide (2)
SR 704 Load Capacity of Springs
SR 710 Bowing/Bending of Beams (metal or wood) poly-slide (2)
SR 715 Rivets for Steel Construction
SR 722 Water Line Capacity
SR 726 Gas Pipe Line Calculator for High & Low Pressure poly-slide (2)
SR 751 Blank but with hand-drawn scales for Machining