steam shovel 
noun
An excavator that is powered by steam.When Yamamoto pursues the bomber, he winds up buried in dirt as the bomber commandeers a steam shovel; as he's being unearthed by Michelle, he screams, ‘What are you doing?’...
- ‘We're standing over this hole where they're digging out the trash with a steam shovel,’ Townsend said, continuing the long-distance description.
- One draws a deep breath at this and notices uneasily that a mighty big shoehorn - it looks like a steam shovel - is trying to jam a lot of writers into a fairly tight social category.