Ok, what is a thumbscrew model? It's not in the glossary... I can't be the only one who doesn't know!
Prior to the late 60s, Weber used thumbscrews to hold the legs in the bowl sockets.The PAT PENDING and PAT number 3538906 that eventually got stamped on kettles refers to the Weber innovation of using the grooved friction system to hold th legs in place.These details help folks to date kettles. Golly's cado is pre 68 ish!This picture of the recent Imperial shows a pretty good shot of the thumb screws:
Quote from: Jeff on March 30, 2013, 01:24:00 PMThe real old grills had them, but Im not sure what year they started....others on here will chime in about that.Thumbscrews in the leg sockets should date back to the 1956 redesign through about 1967-68 as Brian pointed out.
The real old grills had them, but Im not sure what year they started....others on here will chime in about that.