That's the company, Debby. Here's a couple of quotes from their FAQ's on the web:

What on earth is a Rawlplug?
It is a fastening which allows you to fix objects to brick, masonry, or concrete. A hole is drilled into the floor or wall, an insert (now normally plastic) is put into the hole, and a screw is driven into the insert. The screw expands the insert sideways, and it grips the inside of the hole tightly.

Why is it called a Rawlplug?
After the inventor, John Rawlings. In the early 20th. century, he devised a brass cruciform plug to fix something to a wall. Later on he created a plug made of jute bonded with animal blood. Due to the intervention of WWI the Rawlplug company was not formed until 1919. The term is now generic, like Hoover, i.e. any similar product tends to be called by the Rawlplug name.
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I didn't know about the "animal blood" in the history till I looked this up. Maybe that's the secret ingredient in Chipco chips that keeps turning the pages red????