When you travel in an old elevator the FLOOR SELECTOR is the device that "keeps track of where the elevator car is", before microprocessors were around.
It's normally mechanical and interesting to watch watch the movie to see some!

There are some weird and wonderful devices here, but the one that I'm going to explain in detail is the OTIS design.
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HERE ARE SOME MORE INTERESTING LINKS:
LIFT FROM 1905 MACHINERY:
   • ELEVATOR FROM 1905  Explaining the l...  
SCHINDLER WHEEL SELECTOR:
   • Saudi Arabia Hotel explore  UNLOCKED...  
OTIS SELECTOR (WITH DISCS):
   • 1971 Otis elevators Part 2  The moto...  
OTIS SELECTOR (BIG CARRIAGE):
   • OLD 1970s OTIS elevator machinery  l...  
EXPRESS ROTARY CAM SELECTOR:
   • (3/4) PROBABLY THE BEST 'elevator rel...  
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WITH PERMISSION, video contained footage from:

"G A L elevator controller with vertical selector" by Prijesi
   • G A L elevator controller with vertic...  

"Tour of lifts at RomeoBuilding in Stuttgart" by Liftboy92:
   • Tour of lifts at RomeoBuilding in St...  

Video is "Westinghouse Elevator, Monkey on a Stick, gearless" by mnobody
   • Westinghouse Elevator, Monkey on a St...  

Elevator Bob's Elevator Pics
www.elevatorbobselevatorpics.com/images2/machines/gearless/ma24HR.jpg
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Please give us a 'like', thank you! :)
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MERCHANDISE AVAILABLE! Please support our channel by getting Siren and Lift merch from: http://www.mrmattandmrchay.com
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TO SEE OTIS MACHINERY IN ACTION, this video has it all: (and took 2 MONTHS to edit!!)
   • Very detailed OTIS LIFT MOTOR ROOM vi...  
ALSO SEE MY 'ONLY THE BEST' playlist for other quality videos:
   • MY BEST VIDEOS (only the best ones en...  
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IMPORTANT NOTICE ABOUT SAFETY AND YOUTUBE:
This is a RESPONSIBLE and RESPECTABLE channel.
My channel does not promote or glamourise dangerous activities like lift surfing.
A warning in a video DOES NOT exonerate you if harm should come to a kid that was copying something that YOU have portrayed as a fun activity.
For further info, please see these links:
https://elevatorcommunity.fandom.com/...
  / 831498013530296  
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THE MRMATTANDMRCHAY CHANNEL, established 2008:
I'm passionate about uploading quality and interesting videos for YOU, my audience.
What is my channel about? "Old lift machinery made interesting", old airraid sirens, prehistoric alarm equipment. If "I" don't find it interesting ...then IT DOESN'T GET UPLOADED!
I always spend a lot of time editing my videos with animations, video insync with music and voice overs to make them this way.
My moto "Quality NOT Quantity" spending a month editing a video is not a rarity!
But without you, I'm nothing here. Thank you so much for watching.
...mrmattandmrchay is me (Matt) and my son Chay.

THANK YOU very much for watching :)