momentary to constant setup problem

Ok I understand this is supposed to work, but I can't get it to. Nor do I understand how it works. Call me an idiot but hey I still can't figure it out. The setup I'm referring to is this one. 

I'm using a momentary push button for the pulse. I've checked the wiring a dozen times, it all checks out. But it only stays on as long as I have the button pushed. When I stopped the analyze the circuit, I my mind that's what it should do. Not stay on till ground or source is broken.

The way my feeble mind reads it is,

- pulse on 1st relay to pin #86 energizes the coil closing the switch between pin #30 & #87                                                                                                                                            Pin #87 from 1st relay energizes the 2nd relay at pin #85 closing the switch between pin #30 & #87.   (a redundant operation)                                                                           What I don't understand is what keeps the coil on the second relay energized? If you remove the - ground from pin #86 on the 1st relay, the field collapse opening the switch between #30 & #87. This in turn would turn off the 2nd relay because there is no longer a + connection to the coil on pin #85.                                                                        Yes No, am I full of something, or just plain stupid?

K

So one of my relay's must be wanky.

Here is an easier circuit diagram

494_latching_relay_2.gif

Here is another that you just remove power to unlatch the circuit.

Here is the same circuit with a Cube relay