Technical Slide Chart and
Disk (Wheel Chart) Gallery

KEEP ISRM FREE!
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.
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
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SC00902
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SC01201
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SC04081
SC04141
SC04801
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SC04861
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SC05001
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SC05641
SC05661
SC05681
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SC05751
SC05851
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SC05951
SC06001
SC06161
SC06841
SC06851
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SC07371
SC08281
SC08331
SC11921
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SC17061
SC17071
SC17301
SC20571
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SC20981
SC20991
SC21001
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SC21201
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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
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SC27562
SC27641

2nd Column

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
SC27651
SC27671
SC27691
SC27701
SC27711
SC27741
SC27751
SC27771
SC27921
SC28211
SC28221
SC28241
SC28251
SC28261
SC28271
SC28281
SC28291
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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
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SC34931
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SC34951
SC34961
SC34971
SC34981
SC34982
SC35001
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SC35031
SC35041
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
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SC39551
SC39561
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SC39621
SC39631
SC39641
SC39651
SC39661
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SC39691
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SC39741
SC39751
SC39761
SC39771
SC39781
SC39791
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SC39841
SC39851
SC39861
SC39871
SC39881
SC39891
SC39901
SC39911
SC39921
SC39931
SC39941
SC39951
SC39961
SC39971 Photography Focal Length, Depth of Focus, Kolumbus HV,
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SC39991
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SC50571
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SC50651
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SC53121
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SC53141
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SC53171

3rd Column


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
SC53181
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