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2. Chain drive - Wikipedia

   en.wikipedia.org/wiki/Chain_drive

   Drive shafts are another common method used to move mechanical power around that is sometimes evaluated in comparison to chain drive; in particular belt drive vs chain drive vs shaft drive is a key design decision for most motorcycles. Drive shafts tend to be tougher and more reliable than chain drive, but the bevel gears have far more friction ...

3. Garage door opener - Wikipedia

   en.wikipedia.org/wiki/Garage_door_opener

   There are six types of garage door openers: Chain drive openers. These have a chain (similar to a bicycle's) that connects the trolley to the motor. Belt drive openers use a rubber belt in place of a chain. Screw drive openers have a long screw inside the track. The trolley connects to this screw.

4. The Genie Company - Wikipedia

   en.wikipedia.org/wiki/The_Genie_Company

   In May 1954, the Alliance Manufacturing Company first produced its own garage door opener and called it Genie. [2] In 1983 the company entered the home and shop vacuum market, and in 1985 it changed its name to Genie Home Products. [2] Overhead Door Corporation purchased the company in 1994. [2] The Genie Company is headquartered in Mt. Hope ...

5. Garage door - Wikipedia

   en.wikipedia.org/wiki/Garage_door

   Sectional garage door Up-and-over garage door Garage Door Hardware. A garage door is a large door to allow egress for a garage that opens either manually or by an electric motor (a garage door opener). Garage doors are frequently large enough to accommodate automobiles and other vehicles. The operating mechanism is usually spring-loaded or ...

6. Belt (mechanical) - Wikipedia

   en.wikipedia.org/wiki/Belt_(mechanical)

   The open belt drive has parallel shafts rotating in the same direction, whereas the cross-belt drive also bears parallel shafts but rotate in opposite direction. The former is far more common, and the latter not appropriate for timing and standard V-belts unless there is a twist between each pulley so that the pulleys only contact the same belt ...

7. Choking emergency? How to do the Heimlich maneuver - AOL

   www.aol.com/choking-emergency-heimlich-maneuver...

   Teacher, Driving Home From Work, Pulls Over To Save Choking 100-Year-old Woman With Heimlich Maneuver. Wrap your arms around their torso from the back. Make a fist with one hand and grab it with ...