Re: automated vent registers?

["Robert Green" <ROBERT_GREEN1963@xxxxxxxxx>]

"Bill Kearney" <wkearney-99@hot-mail-com> wrote in message
news:4ZadnQ8C58WmHlHYnZ2dnUVZ_r-onZ2d@xxxxxxxxxxxxxxxx

<stuff snipped>

> And how did these vents come to be named "registers" anyway?

"The use of "register" in the heating sense seems to be related to the pipe
organ mechanism, since both involve regulating the flow of air, and first
appeared in this sense in the mid-19th century."

http://www.word-detective.com/061405.html