Safe-T 41516 T-Square
date: label: date made
content: 2000
name: label: maker
content: Safe-T Products, Inc.
notes: label: Description
content: Along its top edge, this 9-1/2" transparent orange plastic rectangular instrument has a scale of inches divided to 1/16" for four inches and to 1/10" for four inches and numbered by ones from 1 to 8. The bottom edge has a centimeter scale divided to millimeters and numbered by ones from 0 to 20. Two rectangular indentations running the length of the instrument have holes drilled every 1/2-inch for drawing vertical lines. The holes are numbered from 3-1/2" to 0" to 3-1/2".
label: Description
content: A lip underneath the instrument's left end serves as a guide rail when the T-square is placed on the edge of a clipboard or drawing board. Unlike a conventional T-square, this object has no crosspiece. This was supposed to make it easier to use. A hole at the right end permits hanging or placement in a three-ring binder. The device is marked: VIEW THRU<sub>TM</sub>; SAFE-T T-SQUARE®; SAFE-T PLASTIC®. It is also marked: Pat. (/) Pend. This patent was not identified.
label: Description
content: Safe-T Products, Inc., of La Grange, Ill., was established in 1992 to sell drawing instruments that were safe for schoolchildren. In 1998 and 2000, Safe-T sold model 41516 for $1.95. In 2006, the company became a subsidiary of A. Daigger & Company and its name changed to Classroom Products Warehouse.
label: Description
content: References: accession file; <i>SAFE-T Products, Inc., Innovative Safe Drawing and Measuring Instruments</i>, about 1998; <i>Safe-T/Basics by Extra Measures, Inc.</i>, about 2000.
label: Location
content: Currently not on view
place: label: place made
content: United States: Illinois, La Grange
topic: label: Subject
content: Mathematics
label: Subject
content: Education
label: Subject
content: Drawing Instruments
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Squares and Triangles
label: See more items in
content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of Extra Measures, Inc.
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2000.0160.10
label: accession number
content: 2000.0160
label: catalog number
content: 2000.0160.10
objectType: label: Object Name
content: t-square
physicalDescription: label: Physical Description
content: plastic (overall material)
label: Measurements
content: overall: 24.1 cm x 5 cm x .3 cm; 9 1/2 in x 1 31/32 in x 1/8 in