Panoramic Photograph Equipment?

We have a category here called "The Big Picture" that features panoramic photographs and, for that matter, panoramic photos are also a separate category item here.  We like them.

Camp Kearney Remount Station, California.  December 1917.

Indeed, we like them so much we've used in them for our various blogs for header or footer photographs.

Big Horn Springs, Thermopolis Wyoming.  April 8, 1918. This is our header photograph for our Railhead blog.

But in spite of that, there's some things we don't know about them.

Laramie, Wyoming.  October 1908.  This is the header for our Painted Bricks blog.

And one of the principal things we don't know is what the photographic equipment used to make these photographs was.

Panoramics were enormously popular from the late 19th Century up through World War Two.  After that, for some reason, they really faded from the scene, and even though you'll occasionally see them today, and you can in fact make them with your Iphone, they aren't what they once were.

How were they done? The camera equipment was obviously special for them, but I can't really find out anything about it.  A search on the topic reveals very little in the way of information.

Advertisement for early panoramic camera.  I have no idea in general what panoramic cameras were like.

If you know, comment below.  We'd like to know how these were done.