Perrygraf Clipper Cargo Dimensional Weight Computer Circular Slide Chart
date: label: date made
content: 1957-1968
name: label: maker
content: Perry Graf Corporation
notes: label: Description
content: This instrument consists of two pieces of blue and white rectangular cardboard, riveted together at the corners. It is marked with a circular logarithmic scale of weight in pounds that ranges from 1 to 250. Inside this is a scale of lengths from 50" to 10". A white disc attached below that scale has a scale of heights from 5" to 30" and a scale of widths from 30" to 6". A paper indicator is attached on top of the disc. It contains a scale of densities in cubic inches per pound from 300 to 200 and three steps of instructions. This slide chart is marked: CLIPPER CARGO (/) DIMENSIONAL WEIGHT COMPUTER. It performs the same function as 1996.3029.01.
label: Description
content: Unlike the other object, a rectangular piece of white cardboard slides inside the instrument to also permit readings of conversions from kilograms to pounds on the front and readings of pounds to kilograms on the back. This part of the chart is marked: WEIGHT CONVERTER. The bottom of the chart is marked: PAN AMERICAN, with LEADERS IN AIR CARGO on the front and SPACE CAN BE RESERVED on the back. The back also has an advertisement: CLIPPER CARGO (/) Reduces Pilferage (/) Reduces Damage (/) Reduces Inventory (/) Extends your working capital!
label: Description
content: The lower left corner of the front is marked: Slide-Chart Copr. 1957, (/) PERRYGRAF Corp., Maywood, Ill. The lower right corner is marked: *T.M. Reg. U. S. Pat. Off. Perrygraf was a very successful producer of promotional slide charts. In 1968, the company was sold to Nashua Corporation and moved to Los Angeles, Calif.
label: Description
content: Reference: Walter Shawlee II, "The Wonderful World of Slide Charts, Wheel Charts, and Perrygrafs," Sphere Research Corp., http://sphere.bc.ca/test/perrygraf.html.
label: Location
content: Currently not on view
place: label: place made
content: United States: Illinois, Maywood
topic: label: Subject
content: Rule, Calculating
label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
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content: Advertising
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content: Science & Mathematics
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content: Slide Rules
creditLine: label: Credit Line
content: Gift of Edward C. Klauck
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1996.3029.02
label: nonaccession number
content: 1996.3029
label: catalog number
content: 1996.3029.02
objectType: label: Object Name
content: slide rule
physicalDescription: label: Physical Description
content: metal (part material)
label: Physical Description
content: paper (overall material)
label: Measurements
content: overall: .2 cm x 10.2 cm x 15.2 cm; 3/32 in x 4 1/32 in x 5 31/32 in