Most itinerant glassworkers would have been flameworkers. Watch a functional, preserved 19th-century wooden lampworking table, complete with a leather bellows, in action.
The above video was made by Bandhu Scott Dunham and explains the inspiration for and process behind his series of kinetic sculptures. Dunham was inspired in part by handbills and advertisements for itinerant glassworkers.
There are a number of academic databases and websites with additional primary and secondary sources. While it would be impossible to include them all, here is a short list of additional places to consult:
See a modern interpretation of a 19th century glass steam engine in The Studio of the Corning Museum of Glass. Bandhu Scott Dunham's series of kinetic sculptures was partially inspired by the steam engines created by itinerant glassworkers.