Is it possible to create a volume by revolving a circle through 360 degrees, keeping one side of the circle a uniform distance from the origin (axis of rotation), whilst the circle diameter increases at a set rate per degree?

I.e. A circle has a radius of 5ft, and is 2ft away from the origin at its nearest point. It is revolved 360 degrees around the origin. This circle radius increases at a rate of 1ft/degree rotation. The end result is a revolved volume with on end having a circle with a 365ft radius, which is 2ft away from the origin at its closest point.

I am trying to model a centrifugal pump volute, but Im having trouble getting the more intricate geometries around the tongue to mesh.

I think you may need to use an extrude along path.

I would make a path of the center line (a spiral), an then extrude the 5' rad circle along it with a draft angle of what ever is the right angle to get 1ft/1deg.