You have feed dogs on a sewing machine, and chain dogs on a roller coaster's lift hill, why are they called this if they look nothing like actual dogs? - Quora
Dive Machines? What are your thoughts? - Page 2 - Theme Parks, Roller Coasters, & Donkeys! - Theme Park Review
Lift hill - Wikipedia
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The Rollback Appreciation Society - The familiar "click-clack" sound that occurs as roller coaster train ascends the lift hill is not caused by the chain itself. The cause for this noise is
Chain Lift | Roller Coaster Wiki | Fandom
Mumbo Jumbo, Flamingoland, Behind the scenes - Best Theme Park Attractions and Extreme Adventures in USA
Coastersandmore.com - Roller Coaster Magazine: Eurostar - Inverted Coaster by Oscar Bruch
Anti-rollback hardware
Huvipuisto.net
Roller Coaster Components - Roller Coaster Parts | HowStuffWorks
Dom 🏴 on Twitter: "Anti rollback dogs - these engage with metal teeth on the lift hill that prevents the train from rolling back down the lift hill if the motor driving
FACE Program: Michigan Case Report 03MI022 | NIOSH | CDC
How to Ride All 3 Toy Story Land Rides in One Day Without Waiting in Long Lines