Last time I showed baby's first heat... I've since built the frame and done a little melting in it.. I'd try right now and get you some pics too, but it's snowing. :(
Overall View. I stripped down a moving cart and bolted a support to it, that's at the right end. That is all that's fixed on it. You can see a pipe under the far beam, that's a temporary measure to elevate it so the hearth is level; also, my railroad track anvil weighing down the left end because tipping up the furnace tends to pull the cart with it...
Detail of the hearth. Sorta. Forgot that I *always* have to use flash in the basement... sigh... Anyways, you can see I filled in the pouring end wall so I only have to tip it 45°, not a full 90 to empty the charge.
Here you can see more details of the frame: the rusty angle iron (1 1/2 x 1/8") is bolted together; there's only one cross member (behind the hearth) holding them parallel, but it seems to work well enough. Later on I'll put a handle at the tilting end which will hold it good and straight. You can also see the support bolted to the cart frame, which holds up the furnace by its 1/2" dia. pegs. These pegs are brazed onto the vertical members of the angle iron base frame.
Here you can see the mounting better. The mounting support is 1 1/4" x 1/4" bar, brazed in two tee joints. That took a lot of heat... The vertical angle iron members are flattened at the top, I forged that out in two heats per piece (again, more heat).. onto this flat are screwed some 1/2 x 1/8" flat bar, which is loosely riveted at the end to more flat, which goes vertically up to the 3/8" dia. running bars which hold the lid section. At the other end of these bars is brazed yet more 1/2" flat for the lid lifting handle...
...Which you can see better here. You also get a good idea of the pivots and stuff from this angle.