Patent drawings with expanded view of steering rod mechanism.

Patent drawings with expanded view of steering rod mechanism.

Wheelchair technology

Four patent drawings titled "Invalid Carriage;" 1) side view of mounted between two large wheels with one smaller wheel in front and a steering rod extending from the front wheel to the chair; 2 and 3) expanded views of the mechanism attaching the steering rod to the front wheel; 4) overhead view of the board running from the front and the back wheels.

Thomas Minniss

United States Patent and Trademark Office, Office of Data Management, Patent Full-Text and Image Database, Patent No. 9,708 http://pdfpiw.uspto.gov/.piw?Docid=00009708&homeurl=http%3A%2F%2Fpatft.uspto.gov%2Fnetacgi%2Fnph-Parser%3FSect1%3DPTO1%2526Sect2%3DHITOFF%2526d%3DPALL%2526p%3D1%2526u%3D%25252Fnetahtml%25252FPTO%25252Fsrchnum.htm%2526r%3D1%2526f%3DG%2526l%3D50%2526s1%3D0009708.PN.%2526OS%3DPN%2F0009708%2526RS%3DPN%2F0009708&PageNum=&Rtype=&SectionNum=&idkey=NONE&Input=View+first+page

Carleton University Disability Research Group

May 10, 1853

public domain

Jpeg of digitized document

document

USPTO_9708_1.2

United States, 1853