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Electric Elevators

Geared Traction Machines

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 Geared Traction Machine
Image 1
Montgomery geared machine
Image provided by: Neal Stubbs
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 Geared Traction Machine
Image 2
Old geared machine
Image provided by: Neal Stubbs
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 Geared Traction Machine
Image 3
Very old geared machine in a derelict building - notice the large flywheel on the end of the motor
Image provided by: Neal Stubbs
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 Geared Traction Machine
Image 4
Rusty derelict geared machine
Image provided by: Roland Biggs
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 Geared Traction Machine
Image 5
Same rusty derelict geared machine
Image provided by: Roland Biggs
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 Geared Traction Machine
Image 6    Click to view a larger and higher resolution image
Otis geared machine
Image provided by: Jason Summers
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 Geared Traction Machine
Image 7
Otis geared machine circa 1926 in Brussels, Belgium
Image provided by: Rick Jensen
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 Geared Traction Machine
Image 8
Otis geared machine
Image provided by: Rick Jensen
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 Geared Traction Machine
Image 9
Westbrook geared machine
Image provided by: Rick Jensen
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 Geared Traction Machine
Image 10
Schindler geared machine
Image provided by: Herbie T. Mann
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 Geared Traction Machine
Image 11
Derelict geared machines in the recently (2006) demolished Donovan Building
home to Motown Records in Detroit, Michigan USA
Image provided by: Regent Isamoné
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 Geared Traction Machine
Image 12
Geared machines
Image provided by: Regent Isamoné
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Jerry Follen informs me that: "The machines are from Hollister-Whitney."
Thank you Jerry!

 

 Geared Traction Machine
Image 13
Geared machine
Image provided by: Rick Jensen
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 Geared Traction Machine
Image 14
Geared machine
Image provided by: Rick Jensen
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 Geared Traction Machine
Image 15
Geared machine
Image provided by: Herbie T. Mann
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 Geared Traction Machine
Image 16
Paternoster driving machine
Image provided by: Herbie T. Mann
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 Geared Traction Machine
Image 17
Geared machine at the Golden Gate Bridge (see the controller here)
Image provided by: Regent Isamoné
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 Geared Traction Machine
Image 18
A very messy geared machine...very nice colors though!
Image provided by: Neal Stubbs
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 Geared Traction Machine
Image 19
Image provided by: Hans van Lunsen - Holland
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 Geared Traction Machine
Image 20
Image provided by: Hans van Lunsen - Holland
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 Geared Traction Machine
Image 21
Image provided by: Hans van Lunsen - Holland
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 Geared Traction Machine
Image 22
An MR 17 geared machine
Image provided by: Hans van Lunsen - Holland
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 Geared Traction Machine
Image 23
A Titan belt driven geared traction machine (see the controller here and here)
Image provided by: Hans van Lunsen - Holland
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 Geared Traction Machine
Image 24
An Otis geared traction machine and motor-generator set on the same bedplate
Image provided by: Hans van Lunsen - Holland
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 Geared Traction Machine
Image 25    Click to view a larger and higher resolution image
Two different geared machines arranged, as Hans' says, to be "like Siamese twins"
The left machine is a Havenmeier & Sanders - the right machine is a Kasper
Image provided by: Hans van Lunsen - Holland
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 Geared Traction Machine
Image 26    Click to view a larger and higher resolution image
The Havenmeier & Sanders machine (orange drive sheave)
Image provided by: Hans van Lunsen - Holland
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 Geared Traction Machine
Image 27    Click to view a larger and higher resolution image
The Kasper machine (blue drive sheave)
Image provided by: Hans van Lunsen - Holland
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 Geared Traction Machine
Image 28
A Schindler machine with the UP and DOWN switch operated by the brake motor
Image provided by: Hans van Lunsen - Holland
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 Geared Traction Machine
Image 29    Click to view a larger and higher resolution image
An MR 17 geared machine waiting patiently to be installed by Hans
Image provided by: Hans van Lunsen - Holland
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 Geared Traction Machine
Image 30    Click to view a larger and higher resolution image
An Otis double motor and tandem geared machine
Image provided by: Hans van Lunsen - Holland
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 FYI - A Few Worm Gear Facts 

 Left Hand Worm
Image "borrowed" from: Boston Gear

 Right Hand Worm
Image "borrowed" from: Boston Gear

 Geared Traction Machine
Information "borrowed" from: Boston Gear

 Worm Gear
This is a multiple thread worm gear and has a 13 2/3 to 1 (13.67:1) gear ration
(41 teeth divided by 3 threads)
Information "borrowed" from: Answers.com

 Worm Gear
As you can see the worm above has three threads
One of the threads is traced in red

 Worm Gear
Information "borrowed" from: Wikipedia

 

 

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