The climb eclipses the majority of the film, which is so archetypal a Lloyd story of striving for success that, despite being identified only as "The Boy" in the opening credits, a pay stub identifies him as "Harold Lloyd." Harold has gone to the big city to make good, and sends bits of jewelry home to his sweetheart, "The Girl," (Mildred Davis, the eventual Mrs. Lloyd) as boasts of his success. In reality he is sacrificing food and falling behind on his rent in order to buy the trinkets with his salary as a flustered fabric salesman in a department store. Eventually The Girl comes to visit and Harold must pretend that he holds a higher position.
There's the clock, and there's Harold Lloyd. I will not show him dangling from it.
While Bill Strother plays Harold's unreliable human-fly pal in the story, in real life he was the human fly who inspired the movie and did the heavy-duty climbing in long shots like the one below.