Generators and Motors
[Home] - [HELP] - [Forums] - [Articles] - [Photo Gallery] - [Groups] - [Chat] - [Classified Ads] - [Subscribe] - [Links] - [Books] - [Sponsors] - [Tools]

Go Back   SmokStak > SmokStak® Vintage Electrical Equipment > Generators & Motors General Discussion
Forgot Password? Join Us!

Notices

Generators & Motors General Discussion Antique Generators, Light Plants and Old Electric Motors: Questions and answers about restoring and showing old power generation systems.

Generators & Motors General Discussion

Dating Century Repulsion-Start Motors


this thread has 2 replies and has been viewed 1917 times

Reply
 
Thread Tools Display Modes
  #1  
Old 04-15-2011, 04:08 PM
Lucien Nunes Lucien Nunes is offline
Registered-I
 
Join Date: Apr 2011
Location: London, UK
Posts: 15
Thanks: 0
Thanked 12 Times in 6 Posts
Default Dating Century Repulsion-Start Motors

Hi Guys
I have been lucky recently with finding a few repulsion start induction run motors ranging from 1/2hp to 5hp which I find fascinating. RS motors are pretty rare here in the UK - apart from a few Century and Wagner units that were mostly supplied with imported machinery they never really made an appearance because AFAIK nobody over here manufactured them.

Anyhow one of these new arrivals is a 5hp 200/400V Century that drives a British-made Rockingham organ blower. This company (like Spencer Turbine in the USA) sometimes fitted Century motors for use on single phase supplies, although for 3-phase and DC supplies they installed UK-made motors. I would like to date the blower installation, so I was wondering if anybody had any data that would allow the this to be worked out from the serial number or constructional features of the motor? If so I will check all the motors for their numbers and take some pictures, although it is the 5hp that is of most interest. The latest patent date on the plate is 1915 but the plant is probably 1920s.

The motor is almost in working order - apart from needing a quick skim on the commutator which is quite worn with the micas projecting - it runs fine and has very good insulation.

Thanks in advance for any info...

Lucien
Attached Thumbnails
Century 5hp RSIR 1.jpg   Century 5hp RSIR 2.jpg   Century 5hp RSIR 3.jpg   Century 5hp RSIR 4.jpg  
Reply With Quote
The Following User Says Thank You to Lucien Nunes For This Post:
Sponsored Links
  #2  
Old 04-19-2011, 12:54 PM
Lucien Nunes Lucien Nunes is offline
Registered-I
 
Join Date: Apr 2011
Location: London, UK
Posts: 15
Thanks: 0
Thanked 12 Times in 6 Posts
Default Re: Dating Century repulsion-start motors

I've had a look at the blower motor and confirmed the serial number as 739641. It's built on an RS15 frame for 200/400V 50Hz, 5hp at 1460rpm.

Maybe someone out there has some old factory records or something? It would be good to hear from amyone with a similar Century RS motor where you know the manufacture date from some other source and the serial number for comparison.

TIA

Lucien
Reply With Quote
  #3  
Old 04-19-2011, 04:53 PM
Mike G Mike G is offline
Subscriber
 
Join Date: Dec 2005
Location: Valencia, Pennsylvania, USA
Posts: 220
Thanks: 105
Thanked 120 Times in 62 Posts
Default Re: Dating Century repulsion-start motors

I'd be interested as well, I have a smaller Century repulsion start motor that looks very similar!
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

F o r u m Jump

Similar Threads Chosen at Random
Thread Thread Starter F o r u m Replies Last Post
Repulsion-Induction motor jdunmyer Generators & Motors General Discussion 7 02-10-2010 11:51 AM
Repulsion Induction motor? tiptop Farm + Industrial Antiques and Collectibles 2 02-03-2010 01:02 PM
GE 2hp Repulsion Induction Motor torque454 Generators & Motors General Discussion 17 11-07-2009 09:50 AM
Repulsion start induction motor question Ned L Generators & Motors General Discussion 10 03-06-2009 08:32 PM
Old Emerson Repulsion Motor Pentode Generators & Motors General Discussion 3 02-22-2007 12:43 PM


All times are GMT -4. The time now is 06:24 AM.

Smokstak and Enginads site search!


All use is subject to our TERMS OF SERVICE
SMOKSTAK® is a Registered Trade Mark
A Community of Antique Engine Enthusiasts
Copyright © 2000 - 2014 by Harry Matthews
P.O. Box 5612 - Sarasota, FL 34277