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Technical Slide Chart and
Disk (Wheel Chart) Gallery

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This gallery contains specimens of slide charts, not considered as generic 'slide rules', in that they are specially designed calculators as an aid to perform a variety of repetitive functions within a specific industry. Typically, these are created by companies, as a promotional item, to help customers and employees, as well as engineers, that use their products. Slide charts are generally made of paper or plastic film materials, that do not have the permanance of a slide rule built using machined or molded wood, plastic and metal

Slide charts are in essence a pre-programmed computer not requiring as much knowledge or understanding, by the user, of engineering equations or scientific principles upon which they are based. Many of these have no logarithmic scales, which is the prime identifier of a slide rule as first defined by William Oughtred. A slide rule, therefore, is much like a modern handheld scientific calculator and only provides the math functions needed by the user. Slide charts are more akin to a software program run on modern computers. Although specialized technical slide rules appear in other galleries, it is because they resemble typical slide rules in construction, in addition with common logarithmic scales, and were made by slide rule companies. Slide charts were and are still made by companies such as:

The majority of the images gallery came from Herman van Herwijnen's SR Catalog and physical slide charts donated to ISRM. The first step in this work-in-progress, was to get over 700 Slide Chart and Disk pictures and clickable thumbnails all loaded. The 2nd step will be to add descriptions. Thirdly they will be sorted in catagories by application or industry, then finally put on smaller, faster web pages. Thanks for your patience!

1st Column

Receiver Sensitivity And Noise Figure Slide Rule
HRB-Singer. 1959 Perrygraf. Donated by Michael Maloney
ISRM 13.01.09.04
RF Filter Performance Chart
Telonic Engineering. 1965 Perrygraf. Donated by Michael Maloney
ISRM 13.01.09.09
Reflectometer & Mismatch Error Limits Calculator
Hewlet Packard. 1967 Perrygraf. Donated by Michael Maloney
ISRM 13.01.09.02
Measurement Error Calculator
Hewlet Packard OscilloScope Systems. 1968 Perrygraf. Donated by Michael Maloney
ISRM 13.01.09.07
Space Systems Calculator
Collins Radio Company. 1966 Perrygraf. Donated by Michael Maloney
ISRM 13.01.09.08
ESM/ELINT System Calculator
Argo Systems. 1980 Perrygraf. Donated by Michael Maloney
ISRM 13.01.09.06
Amplifier Design Calculator & 3rd Order Intercept & 3rd Order Spurious-Free Dynamic Range
Anzac. 1978 Perrygraf. Donated by Michael Maloney
ISRM 13.01.09.03
Communication System Calculator
AEL - American Elect Laboratory. 1971 Perrygraf. Donated by Michael Maloney
ISRM 13.01.09.05

Microwave Antenna System Computer
Andrew Corp. 1986. Donated by Michael Maloney
ISRM 13.01.09.10
Racing Carburator Pocket Tuner
Mikuni. Japan. Arth-O-Graf 1987. John Haberbosch, Rocky Mountain Montesa
Spring Calculator
Muehlhausen Spring Corp.Logansport, Indiana. Perrygraf.
Rockwell-Standard Spring Calculator
North American Rockwell Corp. Spring Corp.©1968. Made by COL-Q-LATOR, G.L. Collard & Sons, Maywood, Ill
ISRM14.07.02.03
Flange Slide Rule
Cooper Cameron Corporation, Houston, TX. 1996, Willie Semple (France)
Directional Survey Calculator "Ouija Board"
Eastman Whipstock, Houston, TX. Perrygraf, 1976, Willie Semple (France)
Slide Rule for d AND dc Exponents
IMCO Services (Halliburton), Perrygraf, 1972, Willie Semple (France)
Flange Slide Rule
Cooper Cameron Corporation, Houston, TX. 1996, Sizing Pipe Flanges, Willie Semple (France)
Hydraulics Calculator
Security, Willie Semple (France)
Stratifications Layers
Welex, Willie Semple (France)
Chord Board Slide Rule
Designed By Martin H. Samuel (1979) Printed by Datalizer (Chicago, IL). Now an iphone app. Donated to ISRM.
SC00031 Financial Interest Rate Calculator
SC00281 - Ami-Ro-Meter. Used by physicians. Probability diagnosis of acute myocardial infarction. Boehringer Ingleheim. Netherlands Heart association.
SC00291 - Ami-Ro-Meter. Used by physicians. Probability diagnosis of acute myocardial infarction. Boehringer Ingleheim. Netherlands Heart association.
SC00302
SC00351
SC00361
SC00371
SC00381
SC00391
SC00411
SC00902
SC00931
SC00971
SC00981
SC01201
SC02651
SC04081
SC04141
SC04801
SC04831
SC04861
SC04881
SC04911
SC04921
SC04931
SC04971
SC04981
SC05001
SC05021
SC05031
SC05061
SC05501
SC05511
SC05611
SC05621
SC05631
SC05641
SC05661
SC05681
SC05721
SC05751
SC05851
SC05861
SC05951
SC06001
SC06161
SC06841
SC06851
SC06941
SC07371
SC08281
SC08331
SC11921
SC11951
SC12201
SC12281
SC12291
SC12301
SC12601
SC12621
SC12631
SC12721
SC12741
SC12751
SC12761
SC13431
SC13441
SC13451
SC13461
SC13491
SC13501
SC13631
SC13891
SC13901
SC13951
SC13981
SC13991
SC14001
SC14011
SC14021
SC14031
SC14071
SC14081
SC14091
SC14101
SC14121
SC14131
SC14141
SC14151
SC14201
SC14221
SC14231
SC14241
SC14261
SC14271
SC14281
SC14311
SC14331
SC14351
SC14381
SC14411
SC14461
SC14481
SC14491
SC14501
SC14791
SC14941
SC15221
SC15231
SC15251
SC15261
SC15262
SC15263
SC15264
SC15481
SC15521
SC15631
SC15641
SC15731
SC15851
SC16151
SC16161
SC16171
SC16181
SC16191
SC16201
SC16211
SC16221
SC16222
SC16231
SC16241
SC16251
SC16261
SC16271
SC16281
SC16291
SC16301
SC16311
SC16312
SC16321
SC16322
SC16361
SC16371
SC16401
SC16411
SC16431
SC16541
SC16551
SC16571
SC16572
SC16591
SC16621
SC16631
SC16641
SC16642
SC16671
SC16672
SC16681
SC16701
SC16711
SC16721
SC16731
SC16741
SC16771
SC17021
SC17031
SC17061
SC17071
SC17301
SC20571
SC20951
SC20961
SC20971
SC20981
SC20991
SC21001
SC21091
SC21121
SC21131
SC21141
SC21161
SC21171
SC21181
SC21191
SC21201
SC21221
SC21261
SC21262
SC21291
SC21931
SC21981
SC22331
SC22841
SC22881
SC23261
SC23331
SC23351
SC23361
SC23371
SC23381
SC23391 Thread Gauge Filetta, Nr. 5005,
SC23471
SC23541
SC23661
SC23671
SC23681
SC24891
SC25661
SC25671
SC25681
SC25691
SC26601
SC26611
SC26631
SC26751
SC27241
SC27311
SC27441
SC27451
SC27461
SC27471
SC27481
SC27491
SC27501
SC27511
SC27521
SC27531
SC27541
SC27551
SC27561
SC27562
SC27641

2nd Column


81mm Mortor Ranging Slide RuleRoyal Ordinance 1986
Donald Bachelor Collection ISRM 18.09.17.55


Safety Valve Calculator Birkett WB400
ISRM 15.09.27.14


Turbo-Meter Slide Rule Meter sizing and spin test calculations. RockwellManufacturing. Gift Of Robert N. Curry
ISRM 18.03.20.13


Turbo-Meter Slide Rule Meter sizing and spin test calculations. RockwellManufacturing. Gift Of Robert N. Curry
ISRM 18.03.20.13


Chemical Calculator For water and sewage treatments. Infilco Inc. Chicago 1946. Grphic Calculator. Gift Of Leroy Hausler Collection
Piping Selector Bonney Forge. 1969. Donated by Manuel Gimenez, Sugarland, Texas
Delco-Remy QC S-Q-C-Lator General Motors Corp. 1950. Donated by Marten C. Jensen
ISRM 09.10.21.06
Kemet Reactance Calculator Unioun Carbide. Cleveland, Ohio. Perrygraf 1959. Donated by Marten C. Jensen
ISRM 09.10.21.05
Vitramon Reliability Calculator Vitramon Inc. Bridgeport, Connecticut. 1963. Donated by Marten C. Jensen
ISRM 09.10.21.07
Mallory Capacitor Calculator Mallory Capacitor Co., Indianapolis, Indiana. Perrygraf c1960. Donated by Marten C. Jensen
ISRM 09.10.21.08
The Dyer's Slyd Rul CIBA Pharmaceutical Products, Summit, New Jersey. Slyd-rul Co, Flushing, NY 1947. Donated by the family of Fred C. Ninger who designed this slide chart calculator.
The Medical Slyd Rul CIBA Pharmaceutical Products, Summit, New Jersey. Slyd-rul Co, Flushing, NY 1946. Donated by the family of Fred C. Ninger who designed this slide chart calculator.
The Elemental Slyd Rul Slyd-rul Co, Flushing, NY 1947. Donated by Dr. Daniel Thomas of South Hadley, MA. Used by his father Dr. Paul F. Thomas at Assumption College in Worchester, MA from 1948 through his graduation in 1954. He earned his DMD from Tufts Dental School in 1958. He practiced dentistry in Chicopee, MA until his retirement in 1999.
ISRM 13.04.20.01
The Elemental Slyd Rul Slyd-rul Co, Flushing, NY 1947. Donated by Dr. Daniel Thomas of South Hadley, MA. Used by his father Dr. Paul F. Thomas at Assumption College in Worchester, MA from 1948 through his graduation in 1954. He earned his DMD from Tufts Dental School in 1958. He practiced dentistry in Chicopee, MA until his retirement in 1999.
ISRM 13.04.20.01
SC27651
SC27671
SC27691
SC27701
SC27711
SC27741
SC27751
SC27771
SC27921
SC28211
SC28221
SC28241
SC28251
SC28261
SC28271
SC28281
SC28291
SC28301
SC28311
SC28321
SC28331
SC28481
SC28491
SC28501
SC28511
SC28521
SC28531
SC28851
SC28901
SC28921
SC28931
SC29951
SC29961
SC30671
SC30681
SC31381
SC31391
SC31401
SC31571
SC31581
SC31591
SC31601
SC31611
SC31621
SC32531
SC32591
SC32601
SC32611
SC32621
SC32631
SC32641
SC32651
SC32661
SC32671
SC32681
SC32691
SC32701
SC32711
SC32721
SC32731
SC32741
SC32751
SC32761
SC32771
SC32781
SC32791
SC33581
SC34251
SC34261
SC34271
SC34281
SC34291
SC34301
SC34311
SC34321
SC34331
SC34341
SC34351
SC34611
SC34721
SC34731
SC34741
SC34781
SC34791
SC34821
SC34831
SC34861
SC34881
SC34891
SC34901
SC34911
SC34931
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SC34951
SC34961
SC34971
SC34981
SC34982
SC35001
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SC35031
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SC35181
SC35451
SC35601
SC35681
SC35691
SC35701
SC35891
SC36701
SC36711
SC36731
SC38351
SC38551
SC38561
SC38571
SC38581
SC38591
SC38601
SC38611
SC38671
SC38831
SC38901
SC39021
SC39051
SC39071
SC39081
SC39461
SC39471
SC39481
SC39501
SC39521
SC39551
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SC39631
SC39641
SC39651
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SC39671
SC39681
SC39691
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SC39701
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SC39731
SC39741
SC39751
SC39761
SC39771
SC39781
SC39791
SC39811
SC39821
SC39831
SC39841
SC39851
SC39861
SC39871
SC39881
SC39891
SC39901
SC39911
SC39921
SC39931
SC39941
SC39951
SC39961
SC39971 Photography Focal Length, Depth of Focus, Kolumbus HV,
SC39981
SC39991
SC40001
SC50551
SC50561
SC50571
SC50591
SC50601
SC50651
SC52501
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SC52561
SC52571
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SC52611
SC52621
SC52631
SC52641
SC52651
SC52661
SC52671
SC52681
SC52691
SC52701
SC52711
SC52721
SC52731
SC52741
SC52751
SC52761
SC52771
SC52781
SC52791
SC52801
SC52811
SC52821
SC52831
SC52841
SC52851
SC52861
SC52871
SC52881
SC52891
SC52901
SC52911
SC52921
SC52931
SC52941
SC52951
SC52961
SC53001
SC53011
SC53021
SC53031
SC53041
SC53051
SC53061
SC53071
SC53081
SC53091
SC53101
SC53111
SC53121
SC53131
SC53141
SC53151
SC53161
SC53171

3rd Column


ISRM 18.09.17.43
Valve Capacity Calculator Copyright 1947 by Keiley & Mueller Kontrol Motor 8 inch DiamteterGift of Donald Bachelor Collection. Has many slide rule scales.

ISRM 18.09.17.44
Chemical Mixing Calculator Copyright 1964 by Mixing Equipment Co . Made by Perrygraf. Gift of Donald Bachelor Collection. Has many slide rule scales.

ISRM 12.11.22.09
Instructions (pdf)
Derck's Trig Simple-Fyer Dial Copyright 1943 by James Derck, Made by Dercl's Gauge Dial Co., P.O.Box 9245, Indianapolis, IND. 46206. Donated By Robert L Allison, Ballard, Washington.
Used for solving sides and angles of triangles.

ISRM 12.11.22.08
Heating Calculator Copyright 1923 by B.A. Johnson, Made by Calculator Specialties Co., Donated By Robert L Allison, Ballard, Washington.
Used for solving sides and angles of triangles.
Slide Rule and Metric Conversion Slide Charts of Australia, 1973. Scan by Cyril Catt
Cutting Speed Wendt Sonis Co. Hannibal, Missouri. Perry-Graf 1946. Scan by Jim Cerny
Spindle Speed Republic Steel Corp. Cleveland, Ohio. Perrygraf 1947. Scan by Jim Cerny
Hobbing Time Calculator Lees-Bradner Co. Cleveland, Ohio. Perrygraf 1964. Scan by Jim Cerny
Hobbing Computer Illinois Tool & Instrument, Chicago, Illinois. Perrygraf 1967. Scan by Jim Cerny
Drilling Computer Illinois Tool & Instrument, Chicago, Illinois. Perrygraf 1966. Scan by Jim Cerny
Computer Slide Adamas Carbide Corp. Kenilworth, New Jersey. Perrygraf 1959. Scan by Jim Cerny
Milling Setup Computer Cincinnati Milling Machine Co., Cincinnati, OH. Perrygraf 1955. Scan by Jim Cerny
Gisholt Time Computer Gisholt Machine Co., Madison, Wisconsin. 1951. Scan by Jim Cerny
Daytron Systems Antenna Gain1993 Perrygraph_Gift Of Gregory Playle
ISRM 19.02.21.10

Bellamy Temperature And Pressure Gradiant Scale 1943 Made in USA - By Johnn C. Bellamy (1943) Institute of Meteorology University of Chicago Gift Of John J. Doudera
ISRM 20.10.01.04

Eckel Valve Flow Calculator 1957 Perrygraf - Gift Of Ted Bauman Sr. & Jr.
ISRM 23.04.11.03

Pipe Flow Slide Rule Calculator 14cm TAD Products - Gift Of Ted Bauman Sr. & Jr.
ISRM 23.04.11.04
SC53191
SC53201
SC53211
SC53221
SC53231
SC53241
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SC53261
SC53271
SC53281
SC53291
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SC53321
SC53331
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SC53591
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SC53611
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SC53651
SC53661
SC53671
SC53681
SC53691
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SC53711
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SC53751
SC53761
SC53771
SC53781
SC53791
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SC53881
SC53891
SC53901
SC53911
SC53921
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SC53971
SC53981
SC53991
SC54001
SC54011
SC54021
SC54031
SC54041
SC54051
SC54061
SC54071
SC54081
SC54091
SC54101
SC54111
SC54121
SC54131
SC54141
SC54151
SC54161
SC54171
SC54181
SC54191
SC54201
SC54211
SC54221
SC54231
SC54241
SC54251
SC54261
SC54271
SC54281
SC54291
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SC54771
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SC55121
SC55131
SC55141
SC55151
SC55161
SC55171
SC55181
SC55191
SC55201
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SC55231
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SC55251
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SC57111
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SC57131
SC57141
SC57151
SC57161
SC57171
SC57181
SC57211
SC57251
SC57261
SC57281
SC57291
SC57501
SC57761
SC57791
SC57901
SC57911
SC57941
SC60021

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