Most of the patents prior to 1836 were lost in the Dec. 1836 fire. Only about 2000 of the almost 10000 documents were recovered.

Little is known about this patent. Only the patent drawing is available. This patent is in the database for reference only.

For an improvement on a Machine for Spinning Cotton, known by the name of “ Danforth's Patent Throstle;” Charles Danforth, Patterson, New Jersey, April 1.

The machine upon which this is an improvement, was patented September 2nd, 1828, and in our list is denominated an “ Improvement in the Construction, Manufacture, and management of the Bobbins and Flyers for Spinning Cotton.” We did not publish any account of the plan of this apparatus at the time, from the wish of the patentee that it might be delayed, as he then contemplated securing his right in Europe, which a publication here might have defeated.

On the 31st of March, 1828, a description of some improvements in spinning was received at the patent office, from Mr. John Thorp, of Providence, Rhode Island, and a patent for these improvements was subsequently obtained by him. The description referred to will be found at page 41, of the last volume. The patent obtained by Mr. Danforth, in September, 1828, was for an improvement bearing a strong resemblance to that described, and afterwards patented by Mr. Thorp; Mr. Danforth has obtained the present patent for a further improvement on his first mode. We shall not attempt to enter into particulars respecting the arrangement devised by Mr. Danforth; its general object will be understood by the reference already made; more would require drawings. The question of who was the first inventor is one, which we are not prepared to discuss, as it belongs to another tribunal.

Journal of the Franklin Institute Vol 6 1830 pg 1

(To be filled in.)

USPTO pdf