Patent Models: Textile and Sewing Machines - Introduction

For much of the nineteenth century, inventors submitted a model with their patent application to the United States Patent Office. The National Museum of American History’s patent model collection began with the acquisition of 284 models from the Patent Office in June 1908, and reached more than 1,000 models by the end of that summer. In 1926, Congress decided to dispense with the stored collection of models and gave the Smithsonian Institution the opportunity to collect any models it wanted. Today, the Museum’s collection exceeds 10,000 patent models dating from 1836 to 1910.
The Museum’s Textile Collection contains over four thousand patent models. The collection includes many examples of carding machines, spinning machines, knitting machines, rope making machines, looms, baskets, carpets, fabrics, and sewing machines. Even the simple clothespin is well represented, with 41 patent models.
This sampling of patent models from the Textile Collection describes the two major groupings, textile machinery and sewing machines. In both groups, the examination of the models begins with the earliest of the inventions. In this early group of patent models, the textile machinery models date from 1837 to 1840, and the sewing machine models from 1842 to 1854.
For more information about the Museum’s patent model collection, see Patent Model Index, Guide to the Collections of the National Museum of American History.
"Patent Models: Textile and Sewing Machines - Introduction" showing 2 items.
1840 Thorp and Angell's Patent Model of a Loom Heddle
- Description
- Loom Heddles Patent Model
- Patent No. 1,498, issued on February 26, 1840
- John Thorp and William G. Angell of Providence, Rhode Island
- These heddles, both wire and twine, were exhibited in the Patent Office in a round wooden frame. In the patent specification, Thorp and Angell described the dimensions of heddles for use on a common power loom. A chain of the heddles was formed by taking two pieces of wire or twine and tying them with a common square knot, “which will unite them in the same way and manner that a lady ties her apron strings or a child his shoestrings.” The placement of the knots resulted in the formation of the eyes of the heddles, which raise and lower warp threads in weaving cloth.
- Thorp and Angell did not include a patent drawing with the specification. The 1841 Journal of the Franklin Institute remarked of this omission: “We must suppose . . . that the description, although to us somewhat obscure, would be clear to a professional weaver.”
- Location
- Currently not on view
- model constructed
- before 1840-02-26
- patent date
- 1840-02-26
- inventor
- Thorp, John
- Angell, William G.
- ID Number
- TE*T11409.032
- catalog number
- T11409.032
- accession number
- 89797
- patent number
- 1,498
- Data Source
- National Museum of American History, Kenneth E. Behring Center
1837 Hartford and Tilton's Patent Model of a Loom Heddle
- Description
- Loom Heddles and Harness Patent Model
- Patent No. 544, issued December 29, 1837
- Benjamin Hartford and William B. Tilton of Enfield, New Hampshire
- Hartford and Tilton improved upon the construction of heddles (the mechanisms that raise and lower warp threads) by using strips of rolled flat metal with an eye punched through the middle of each strip to allow for the passage of warp yarns. Heddles were commonly constructed of cord. The replacement of metal for cord produced a more durable heddle. These one-piece metallic strips and the construction of the heddle frame were the basis of their patent. The heddles slid on two rods and were attached to adjustable clasps, permitting the heddles to correspond to the part of the reed (a comb-like device used to space the warp yarns evenly) that was in operation.
- Location
- Currently not on view
- model constructed
- before 1837-12-29
- patent date
- 1837-12-29
- inventor
- Hartford, Benjamin
- Tilton, William B.
- ID Number
- TE*T11409.015
- patent number
- 544
- accession number
- 89797
- catalog number
- T.11409.15
- Data Source
- National Museum of American History, Kenneth E. Behring Center