1861-12-31 Thomas Green & Willoughby Green - Patent No 3263 - P01

A.D. 1861, 31st DECEMBER. N° 3263.

Chains for Chain Wheels, &c.

LETTERS PATENT to Thomas Green and Willoughby Green, both of Smithfield Iron Works, in Leeds, in the County of York, and Robert Mathers, of Trafalgar Street, in Leeds, aforesaid, Engineer, for the Invention of "IMPROVEMENTS IN CHAINS FOR GIVING MOTION TO CHAIN WHEELS, AND IN GIVING MOTION TO MACHINERY."

Sealed the 3rd June 1862, and dated the 31st December 1861.

PROVISIONAL SPECIFICATION left by the said Thomas Green, Willoughby Green, and Robert Mathers at the Office of the Commissioners of Patents, with their Petition, on the 31st December 1861.

We, THOMAS GREEN and WILLOUGHBY GREEN, both of Smithfield Iron Works, in Leeds, in the County of York, and ROBERT MATHERS, of Trafalgar Street, in Leeds aforesaid, Engineer, do hereby declare the nature of the Invention for "IMPROVEMENTS IN CHAINS FOR GIVING MOTION TO CHAIN WHEELS, AND IN GIVING MOTION TO MACHINERY," to be as follows:-

This Invention has for its object improvements in chains for giving motion to chain wheels, and in giving motion to machinery.

The first part of the Invention consists in constructing chains used for giving motion to chain wheels with extra links, or what may be called guard links on each side of the driving links; these extra lengths are to overlap the edges of the teeth of the chain wheels, and they serve to keep the chain in its place on the wheels; when using a chain constructed in this manner, no flanges are required on the chain wheels.