Joe, Josephine, George and Georgina.
Charlie Bucket's grandparents in "Charlie and the Great Glass Elevator" are Grandma Georgina, Grandma Josephine, Grandpa George, and Grandpa Joe.
The main characters in "Charlie and the Great Glass Elevator" are Charlie Bucket, Willy Wonka, Grandpa Joe, and the four grandparents. They embark on a new adventure in the Great Glass Elevator after the events of "Charlie and the Chocolate Factory."
Wonka gave him the factory so he left in the glass elevator through the roof, went to his parents and grandparents with Wonka and loaded them into the elevator. There is a second book about the adventure that followed them leaving in the glass elevator. It is called Charlie and the Glass Elevator. Look for it because it is really good and tells what happened to Charlie. I will let you know that at the end of the second book they punch a second hole through the roof of the factory.
"Charlie and the Great Glass Elevator" by Roald Dahl has 176 pages.
The Glass Elevator
'Charlie and the Great Glass Elevator' is the sequel to 'Charlie and the Chocolate Factory'. It is available at book retailers such as Amazon and Barnes & Noble.
Roald Dahl
83
He rode in the Great Glass Elevator to get into space.
The setting of "Charlie and the Great Glass Elevator" includes the Chocolate Factory, the Bucket family home, and the space around Earth where the Elevator travels. The story moves between these locations as Charlie and his companions embark on their adventures.
That is a relative question, "The Glass Elevator" in Ronald Dahl's "Charlie and the Chocolate Factory" and "The Glass Elevator" is probably the best known fictional elevator. See related link for a site on elevators.
when they rode in the great glass elevator
in charlie and the great glass elevator,willy wonka says a story to charlie in which he mentions the polly frog