Answered By: Regan Brumagen Last Updated: Sep 23, 2016 Views: 28
This resource copies drawings from Ken Wilson's book describing how to make cylinder glass:
This article by Ken Wilson is useful:
Wilson, Kenneth M. “Window Glass in America.” In: Peterson, Charles E. Building Early America: Contributions Toward the History of a Great Industry. Proceedings of a symposium held on the occasion of the 250th anniversary of the Carpenters' Company of the City and County of Philadelphia, Mar. 27-29, 1974, in Philadelphia. Radnor, PA: Chilton Book Company, pp. 150-164.
This YouTube video shows a modern version of making cylinder glass:
I attached a general bibliography about window glass history - some will discuss early history, including cylinder glass. Please let me know if you need more specific information and I will investigate further.