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Morin, Henri:Regle pour Essais des Duretes des Metalix

Morin Regle pour Essais des Duretes des Metalix

Details of: Morin, Henri - Regle pour Essais des Duretes des Metalix

Type? Where possible the generic name preceded by the form if not 25cm/10” linear - e.g. Pocket Enhanced Mannheim. For specialty types, often supplemented by its use. Sometimes a suffix is also added to distinguish between versions of the same model. Set for testing metal hardness
Sort? L/C/D/T/W/X where L=Linear, C=circular, D=Drum, T=tubular, W=watch, X=miscellaneous (i.e. the rest) C
Construction? Basic construction form of the body i.e. Closed/solid frame or Open frame or Duplex or Other Other
Material? Basic description: ivory/bone/wood/bakelite/plastic/metal/cardboard or combinations e.g. wood/veneered, wood/painted, etc 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. Ø 9.1cm
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 seperate magnifying cursor - no hairtline but extra tick marks
Condition? Cn where n = 0-6 based on Herman van Herwijnen’s condition/quality scale C2
Date? YYYY for year(s) of production or an approximation/range 1961
Extras? Basic description of any accessories - e.g. case or stand + where relevant, an accreditation for image, etc wooden box with metal clasp
Instructions? Details like “on back of rule” and/or language of instruction sheet/booklet - generic or instructions for common layouts usually not listed briefly on front & back + French catalogue description from 1934
Booklet (PDF)? Downloadable .PDF copy of unusual or uncommon model specific instructions download
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

Table of conversion factors on back + 12 varying steel weights + set of test slides (wrapped) + rubber + heavy sprung testing piston/hammer

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

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Regle pour Essais des Duretes des Metalix Set for testing metal hardness