Slide rule
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Ingenium,
1990.0265.001
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- OBJECT TYPE
- SPECIAL PURPOSE/FRICTION LOSS
- DATE
- 1959
- ARTIFACT NUMBER
- 1990.0265.001
- MANUFACTURER
- PERRYGRAF
- MODEL
- Unknown
- LOCATION
- Maywood, Illinois, United States of America
More Information
General Information
- Serial #
- N/A
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- CARDBOARD/ METAL GROMMETS
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 18.0 cm
- Width
- 8.0 cm
- Height
- N/A
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Mathematics
- Category
- Calculating devices
- Sub-Category
- N/A
Manufacturer
- AKA
- PERRYGRAF
- Country
- United States of America
- State/Province
- Illinois
- City
- Maywood
Context
- Country
- Canada
- State/Province
- Unknown
- Period
- 1950'S-1960'S
- Canada
-
USED IN CANADA IN ASSOCIATION WITH IRRIGATION EQUIPMENT - Function
-
A CALCULATING DEVICE USED FOR FIELD CALCULATIONS TO DETERMINE LINE FRICTION, PUMP HORSE POWER, LATERAL FRICTION LOSS ETC. OF IRRIGATION LINES. - Technical
-
Unknown - Area Notes
-
Unknown
Details
- Markings
- BLACK OR WHITE LETTERING ON ONE SIDE READS 'RAIN BIRD FRICTON LOSS CALCULATOR/ FOR SPRINKLER SYSTEM MAIN LINE/ Based on Scobey's Ks=.40. Aluminum with quick couplers and spiral Welded Steel 15 years old.' & 'Copyright 1956, National Rain Bird Sales and Engineering Corp. Made in U.S.A. Side-Chart by PERRYGRAF, Maywood, Ill.'/ ON OTHER SIDE 'RAIN BIRD CALCULATOR FOR PIPE SIZE & PUMP H.P./ Use this this for lateral pipe. Use other side for main line pipe and pump H.P.' & 'RAIN BIRD SPRINKLER MFG. CO. (Ltd.), CANADA, 54 E. Cordova St.,VANCOUVER, B.C.'
- Missing
- N/A
- Finish
- GLOSSY BLACK,YELLOW & WHITE FINISH
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
PERRYGRAF, Slide rule, circa 1959, Artifact no. 1990.0265, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1990.0265.001/
FEEDBACK
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