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2. Differential pulley - Wikipedia

   en.wikipedia.org/wiki/Differential_pulley

   He claimed that many engineering firms conceded on the difficulty of efficiently disengaging the chain from the teeth as the pulleys turned, but his firm developed a "pitch" chain which solved the issue. Marketed as "Weston Differential Pulley Blocks with Patent Chain Guides", the pulley had good sales, namely, 3000 sets in 9 months.

3. Hoist (device) - Wikipedia

   en.wikipedia.org/wiki/Hoist_(device)

   Hoist atop an elevator. A hoist is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium.

4. List of The Texas Chainsaw Massacre (franchise) characters

   en.wikipedia.org/wiki/List_of_The_Texas_Chainsaw...

   Drayton Sawyer made his debut appearance in The Texas Chain Saw Massacre, in which he first appears as the mild-mannered, middle-aged proprietor of the Last Chance Gas Station, a rural Gulf Oil gas station and barbecue shop (with an unnamed car door window washer as an employee), where a group of teenagers stop for fuel while passing through ...

5. Rigging (material handling) - Wikipedia

   en.wikipedia.org/wiki/Rigging_(material_handling)

   Chain – Series of connected links which are typically made of metal; Chain hoist – Device used for lifting or lowering a load; Chain stopper; Come-along – Lever operated, portable ratchet winch; Crane (machine) – Type of machine; Crawler (rigging) Hook – Tool used to grab onto, connect, or attach to something

6. Chain hoist - Wikipedia

   en.wikipedia.org/?title=Chain_hoist&redirect=no

   Hoist (device) With possibilities : This is a redirect from a title that potentially could be expanded into a new article or other type of associated page such as a new template. The topic described by this title may be more detailed than is currently provided on the target page or in a section of that page.

7. Dragline excavator - Wikipedia

   en.wikipedia.org/wiki/Dragline_excavator

   The bucket is maneuvered by means of a number of ropes and chains. The hoist rope, powered by large diesel or electric motors, supports the bucket and hoist-coupler assembly from the boom. The dragrope is used to draw the bucket assembly horizontally. By skillful maneuver of the hoist and the dragropes the bucket is controlled for various ...