George Silk was an accomplished engineer and had a business that built, still builds portable machining tools, primarily for power plant and millwright work,
https://silkmachines.com/
Company I worked for for over 20 years contracted him to build a machine for our company used for machining seats in turbine steam chests for power plants back in the 90's. Last time I checked his son still ran the business.
My boss at the time was an avid motorcyclist and went to England to meet George and discuss the project and while there got to see the cycles. I believe that George worked for Scott at the end when they closed.