I talking a schematic of what your are going to do, which was a switching circuit using higher than rated voltage?Not without interfacing. There are ways to do it, such as the one I'm about to show for a relatively high frequency oscillator by way of example. The 555 controls a transistor, which in turn interfaces to the high voltage side.
BTW, a standard 555 can only handle 4.5VDC to 15VDC, while a CMOS 555 (totally different part) can usually handle 3.0VDC to 18VDC. The 19VDC is an internet myth, datasheets are your friend.