Heinrich W. Beeker of Germany started his SHS about 1975, finished it about 1995. Attached is Fred's quickie drawing of his shs layout, giving you an idea of his arrangement in the photos (Fred promises better in a short time). The importance of his shs is the new design of mechanical two mirror coelostat. His Beeker coelostat, as I call it, is a modification of the Zeiss two mirror coelostat. His design is definitely easier to make. It is unique, and it will be a big contribution to SHS building, is compact, easy to copy for a roof design, even a tower design.
Beeker ceolostat on roof, with SHS in the attic
Frau Betti Beeker by the 15' dome of the 6" f/15 Jaeger refracter
Heinrich W. Beeker at his Zeiss 70/1500mm refractor
The Beeker ceolostat from various angles (south is to the left, leftmost pictures are opened, right closed)
The optical housing which directs the sunlight either into the SHS, or downward onto a rotating screen for viewing sunspots and drawing
Front of two spectroscopes; optical housing removed; 1.9 meter FL and 2.7 meter FL
Disk cutting machine (Betti Beeker in background)
Focusing mount; grating housing; spec-lens; spec-eyepiece, 50mmFL; 3mm black disk, blockout tiny lens reflection off spec.
150mm white light projector, rotating screen, uses Erfle eyepiece, for drawings