The Hyde Windlass Company built ship's machinery, including windlasses, capstans, and steering gear, some steam powered, and some human powered. Hyde Windlass was the ancestral company of today's Bath Iron Works. They sent their machinery all over the world.
The images are from the Twelfth Annual Report of the Bureau of Industrial and Labor Statistics for the State of Maine, 1898, published in Augusta, Maine in 1899, facing p. 129. They would have been produced for a catalog.