Keuffel and Esser, Specialty Slide Rules

See the K&E Standard Gallery for slide rules with common general-purpose scales


L03 K&E Short Base Triangulation Rule USArmy

K&E Short Base Triangulation Rule US Army
Made in U.S.A. for the US Army
Front Scale: Aux Angle "A", Mils [ Vertex Angle "t" mils, base "b" ] Range "R"
Back Scale: [ Vertex Angle "t" mils, base "b" ]
Cursor: 2 hairlines Meters/Yards


REF K&E M4 Graphical Firing Table Slide Rule - 1943
K&E M4 Graphical Firing Table
Made in U.S.A. for the US Army, 1943 - 18-1/4" long
Link - Clark McCoy Archive



S264 K&E 4095-3 Merchants Rule
K&E 4095-3 Merchants Rule s/n 652943
Made in U.S.A. -
Front Scale
DF [ CF, C ] D
Back Scale
[ Index, CI ] D


REF K&E 4108 Military Slide Rule
K&E 4108 Military Slide Rule c1950
Made in U.S.A. for the US Army - 10", Similar to Short Base Triangulation SR
Front Scale: Opposite Angle Deg, Mils [ Apex Angle "t" mils, deg, CI, base C ] Range D, A
Back Slide: [ Sin, Sin Tan, Cos, C ]
Archive - Clay Castleberry Collection


REF K&E 4110 Power Trig
K&E 4110 Power Trig c1942
Made in U.S.A. - 13" Long (same stock as 4096 Merchants SR)
Front Scale: P, F, A [ B, T, Cot, S Cos, CI, C ] D
Archive - Clay Castleberry Collection
US Patent


S450 K&E 4133 Roy Lance Electrical
K&E 4133 Roy Lance Electrical sn 120
Made in U.S.A. - c1915 - narrow stock
Front Scale: 8in // A [ B  0-260 mid scale, C] D || B&S Gauge
Back Scale: [ S, L, T ] 25cm
Well(groove):Ampere Carrying capacity of wire:
1st row - Rubber coated wire
2nd row - weather proof wire
3rd row - rubber covered cable
4th row - weather covered cable
(3rd & 4th row gauge marks read hundred thousand circular mils)
Original owner: J.S.Wilson - Case marked:Aug 1915


S450 K&E N4133 Roy Lance Electrical
K&E N4133 Roy Lance Electrical sn 246401
Made in U.S.A. - c1949 - wide stock
Front Scale: 8in // A [ B  0-260 mid scale, CI, C] D || B&S Gauge
Back Scale: [ S, L, T ] 25cm
Well (groove): Ampere Carrying capacity of wire:
1st row - Rubber coated wire
2nd row - weather proof wire
3rd row - rubber covered cable
4th row - weather covered cable
(3rd & 4th row gauge marks read hundred thousand circular mils)
Original owner: Burnham -Plymouth, Indiana 


REF K&E N4135 (Engine) Power Computing
K&E N4135 (Engine) Power Computing - Duplex
Made in U.S.A. - c.1922 (REF McCoys K&E Catalogs)
Front Scale
A [ B, CI, C] D
Back Scale:
P(IHP/BHP) [ R(Cyl Dia/Stroke/AHP), W(WT.Lever/RPM) ] D(Gas/Steam)
Archive


S445 K&E 4139 Cooke Radio Rule
K&E 4139 Cooke Radio Rule - s/n 115150
Made in U.S.A. - 1955-1962
Front Scale
L, DF [ CF, CIF, CI, C ] D, 2π
Back Scale
LC, A [ B, T Cot, ST, S Cos ] D, DI
Original Owner: William B. Huber


REF K&E 4143 Kissam Stadia
K&E 4143 Kissam Stadia
Made in U.S.A. - 1960-1962
Front Scale
10in // R1 [ V1, HC, V2 ] R2 || 25cm
Back Slide: [ V3, H ]
Instruction Card
McCoy Archive - Michael O'Leary Collection


REF  K&E 4160 Chemists Rule
K&E 4160 Chemists Rule S/N 284743
Made in U.S.A.
Front Scale
SOUGHT [ GIVEN, CI] D (Oxide Elem.)
Back Scale
SOUGHT [ GIVEN, C] D< (Acid, Base, Salt)
Archive - Not in Collection


REF K&E Analon 68-1400 Science Analysis
K&E Analon 68-1400 Science Analysis - sn 003397
Made in U.S.A. - #397 of 597 made - c1966.
Front Scale
V2, V1/2, A [ B, U1/2, U-1, U, C ] D, V, V-1
Back: Dimensional factors
Archive - MK Collection
Instructions 2.8Mb


REF K&E National Union Radio
K&E National Union Radio
Made in U.S.A.
Front Scale
4(L or C Reactance) [ 3(Frequency), 2(Inductance)] 1(Capacitance)
Back Scale [Resonance Frequency]
Archive - Clark McCoy Collection
M74 Instructions 1.92Mb


REF  K&E Associated Spring
Belleville Spring Washer Computer
K&E Associated Spring Design - Belleville Spring Washer Computer
Made in U.S.A. by K&E for Associated Spring 1967
Front Scale
Load Flat [ OD, OD/ID (2 scales), h/t, E/1-σ2 ] Thickness
Back Scale Load Flat [ OD, OD/ID (4 scales), h/t, E/1-σ2 ] Stress
Archive - Scan donated by Jack Rababeh, engineer at Associated Spring
M145 Instructions 5.69Mb
See the Pickett page for more ASC slide rules.

Click here on How to Date a K&E


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