Carpet Sweepers, U. S. Patent 199,612, July 29, 1878, Melville R. Bissell, Grand Rapids, Michigan.
The invention is an arrangement of bearings, screws, and springs to raise or lower the sweeper wheels for use on either carpets or bare floors. This is a later version of the original Bissell Carpet Sweeper.
The model is 14" x 8" x 4". It is made of dark colored wood with gold stylized lettering. There is a metal part to which a handle would be attached. It appears to be a production model and is in excellent condition with the original Patent Office tag.
The Bissell Carpet Sweeper is one of the very few products that has changed little since its introduction over 100 years ago. It is still being sold in significant quantities under its original trademark, "Bissell."