Parallel Rule

Parallel Rule

 

a device for uniform hatching, used in drafting. The principal elements of a parallel rule are a straightedge with a protractor attachment, a fastening yoke, a rod, and a shift lever with a return spring. When the lever on the rod is pressed, the rod carrying the yoke with the straightedge is moved by a predetermined step ranging from 0.2 to 10 mm. The yoke may be fastened at any point on the rod up to a distance of 100 mm. The protractor attachment has a stop that allows the straightedge to be set at an angle from 0° to 180°. Self-contained parallel rules are attachable to any spot on the drawing by means of pins; other types are made in unit with drafting machines.

References in periodicals archive ?
Under the offering, the company is offering USD1.1m in common stock, the maximum allowed under a Regulation CF offering and USD400m in common stock in its parallel Rule 506(c) offering available to accredited investors only.
Yet while the notion of drawing in space had already featured prominently in Clement Greenberg's writing about midcentury expressionist sculpture, Sandback's drawing is hardly so subjective; his lines look less like traces of the artist's hand than like vectors laid out with a parallel rule or a T square.
Sohail was the incharge of the Taliban's FM-radio station during the TTP's parallel rule in the Swat Valley, The Daily Times reports.
TEI recommended that a parallel rule be adopted that would permit taxpayers to revise elections following reassessments where additional losses for the particular year are available within the group.
54c states a parallel rule for the mukatab's father: "This also holds for [the mukatab's] father.
A parallel rule applies with respect to debt held by a shareholder.
CLOSE UP of white field crossed with parallel rule, adjustable triangle and a hand with pencil, painstakingly drafting an elaborate column cap.
Remember, in a parallel rule, all tests are run on all cases and are considered positive if one or more tests are positive, and negative if all are negative.
A parallel rule precludes the allocation of assets from the upstream to downstream line.
The two leaders also discussed the deteriorating condition along the Pakistan-Afghanistan border where the Taliban have virtually established a parallel rule.
State Department and Department of Commerce parallel rules to implement the removal of firearms from the munitions list are in the proposed stage.
The Commodity Futures Trading Commission (CFTC) adopted parallel rules for swap dealers in 2012.