Dick’s improvement in “Signal-Lights for Locomotives” included a combination of a stationary and a moveable headlight which could also identify the train name or number.
For Bigelow’s invention of a “Loom for Weaving Piled Fabrics,” he received one of his many patents, which included patents for his celebrated looms for weaving Brussels, or looped, carpets.
This patent model demonstrates an invention for an improvement on Hoe's rotary printing press; the invention was granted patent number 5199. The patent includes improvements to the inking apparatus, the use of a portion of the type cylinder for ink distribution, and locking type to the cylinder with tapering rules.
Packard’s improvement in “Cooking Utensils,” her only patented invention, included a new design for a frying pan using rounded recesses to keep eggs in place on the pan while cooking.
Rennie described her only patented invention, for a “Dust Pan,” as having a “peculiar construction” which would assist with “Sweeping Stairs and Floors of Apartments.”
Parmelee’s “Artificial Leg” included an atmospheric pressure-conforming rubber bucket molded from the patient’s remaining limb. Parmelee held several patents using India-rubber.
Description
Patent model for DuBois D. Parmelee, “Improvement in Artificial Legs,” U.S. Patent 37,737 (Feb. 10, 1863). Dubois Duncan Parmalee (1829-1897) was a chemist and inventor in New York City.
Sewing Machine Patent model, Improvement in Sewing Machines, 1873. Helen A. Blanchard, of Boston, Massachusetts. Patent No. 141987 Issued August 19, 1873. This patent model for an improvement in sewing machines introduced the buttonhole stitch. Blanchard received some twenty-eight patents, many having to do with sewing. She is best remembered for inventing the zigzag overstitch sewing machine.