"Anti-tiedown" - Definition needed

Subject: "Anti-tiedown" - Definition needed
From: Tim Altom <taltom -at- IQUEST -dot- NET>
Date: Tue, 16 Dec 1997 07:33:22 -0500

>
>I need help in finding a definition (not an example) of the term
>"anti-tiedown"?
>
>I have seen it used in the following:
>
>"Concurrent or synchronous actuation of two-hand control systems is the
>
>
>most popular approach to anti-tiedown control logic."
>
My Lord, I never thought to run into this again.

In most machine control systems there's some kind of two-hand button scheme
that keeps both of the operator's hands busy while the machine crunches,
slices, or otherwise engages in finger-endangerment activity. An
anti-tiedown is a mechanism for ensuring that the operator must use both
hands to have both buttons depressed when the machine is activated. The
term anti-tiedown refers to the fact that one button can't be tied down,
taped down, braced with a broomstick, or otherwise depressed, leaving the
operator free to mangle himself. Anti-tiedowns on electromechanical
controls are usually just timers; if a button is held down too long the
cycle is locked out.

Your sample phrase is probably from a textbook. Yuk.


Tim Altom
Vice President, Simply Written, Inc.
317.899.5882 (voice) 317.899.5987 (fax)
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