board when placed thereon, and the T-square having a helve head unitary with a proximal end of the blade, and the helve head having a second longitudinal axis extending substantially at a right angle to the straight edge and extending substantially parallel to the board's bottom edge and to...
drafting board being of a width sufficient to support two spaced-apart roller surfaces of a T-square to be positioned on the drafting board, the bottom edge's width extending laterally across the board's bottom as a planar surface, and a T-square having a straight edge along a first ...
The meaning of DRAFTING MACHINE is a drafting instrument consisting of linked parts that perform the functions of the T square, triangle, linear scale, and protractor.
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T-square- a square used by draftsmen to draw parallel lines Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc. Want to thank TFD for its existence?Tell a friend about us, add a link to this page, or visitthe webmaster's page for free fu...
申请(专利权)人: PETERSON; JOHN G. 发明人: JG Peterson 摘要: A drafting instrument using an internal light source to illuminate, via mirrors and glass beads and a plastic blade, the work area usually shaded by the draftsman, especially in the form of a T- square.收藏...
theparallel straightedge is analternativeto the T square. Thedrafting machine, introduced about 1930, allows a straightedge to be moved while maintaining any desired angle between it and the edge of the drawing board. Combining the functions of the T square, triangle, protractor, and scale, it...
A drafting T-square including a base block with a pivotable straight bar which can be manipulated as a protractor. A scale is slidable along the straight bar for extending beyond the straight bar. A further arm is pivotable with respect to the straight bar. A lamp on the base block illum...
A device, used in drafting, that provides the combined functions of a T-square, scale, triangle, and protractor; it is attached to a drawing board or drawing table. McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc. ...
United States Patent US4422245 Note: If you have problems viewing the PDF, please make sure you have the latest version ofAdobe Acrobat. Back to full text