Pickett N600-ES

(12.5cm Scale Pocket rule, LOG LOG SPEED RULE)

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Pickett N600-ES (c1962-66)
Image
Image Summary
System: Log Log
Specialization: -
Type: Open frame
Material: Aluminium
Facings: Painted
Scale Length: 12.5cm No of Scales: 22
Front Length: 140mm Front Width: 27.5mm
Language: English Origin: USA
Date: c1962-66
Features/Notes: Pocket rule.
Widely publicised elsewhere as the model that NASA took to the moon on the Apollo missions, with one apparently taken to the surface by Buzz Aldrin.
Scales (colours as shown)
Front: LL1+, LL1-, A [ B, ST, T, S, C ] D, DI, K Back: LL2+, LL2-, DF [ CF, Ln, L, CI, C ] D, LL3+, LL3-
Labels Left: LL1+, LL1-, A [ B, ST, T, S, C ] D, DI, K Labels Left: LL2+, LL2-, DF [ CF, Ln, L, CI, C ] D, LL3+, LL3-
Labels Right: - Labels Right: -
Style: Normal Typeface: Sans-serif
Extensions: - Decimals: -
Gauge Marks: p (3.14) on A, B, C, D, CI, DI, CF & DF
p/4 (7854) on A, B, C & D, unlabelled
R (573) on C & D
" (1.18) on ST
(1.97) on ST
r" (2063) on C
r (3438) on C
r (573) on C
e (2.718) on LL2+ & LL3+
Rulers: -
Features/Notes: Numbers on LL1-, LL2-, LL3-, CI & DI in red.
Inverse numbers on T & S in red.
Scales printed on painted "eye-saver" yellow background, hence "ES" suffix to model number.
Construction
Stock: Upper and lower aluminium stock rails connected by four pressed steel straps, one each at the front and back of each end.
Stock thickness - 3mm
Each strap features a finger cut-out.
Strap width x thickness (mm) - 6.5 x 1
Front and back straps of each end fixed by two rivets through the lower rail and a machine screw through the top rail.
Slide tenstion springs in the ends of the top rail behind the straps.
Rails feature tongues to fit into slide grooves.
No bevels or cursor grooves.
Length x Width x Height (mm) - 153 x 27.5 x 5 (plus screw heads)
Slide: Double sided, aluminium.
Grooves in edge to locate in stock rail tongues.
Approx 1mm diameter through hole at each end.
Front face width (mm) - 11.5
Cursor: Double sided.
Top and bottom Nylon runners (hence "N" prefix to model number) attached to two plastic panes.
Each pane fixed to runners with three screws; one at the top and two at the bottom, alternating with fixings on reverse.
Each pane features a single, black central hairline.
Sprung top runner.
Pane width x height x thickness (mm) - 14 x 38 x 1
Overall width x height x thickness (mm) - 19 x 38 x 5 (plus screw heads)
Printing (colours as shown)
Stock: -
Slide: "MODEL N600-ES" and "LOG LOG SPEED RULE" on front, left end above and below hole respectively.
Black inverse Pickett logo with "81" above and "MADE IN U.S.A." below on front, right end.
"PICKETT ALL METAL" and "SLIDE RULES" on back,left end above and below hole respectively.
"PICKETT & ECKEL. INC." and "CHICARGO. ILL." and " 1962" on back, right end.
Cursor: -
Labels: None
Instructions
None
Box (colours as shown)
Style: Belt pocket L x W x D mm: 164 x 51
Material: Leather Colour: Tan
Construction: Two piece, sewn and rivetted, open at the top.
Sprung leather covered belt hook on back.
Pull tab on back to lift rule out of case for ease of access.
Printing: Pickett logo and "PAT PENDING" stamped into pull tab.
Labels: None
Detail Images
Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
Count Belmiro © Copyright May 2012 - June 2015
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