It is currently Mon Jul 13, 2020 12:37 am

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 3 posts ] 
Author Message
 Post subject: Bet you never saw a water turbine speedometer before
PostPosted: Sat Jun 27, 2020 9:08 pm 

Joined: Thu Apr 14, 2005 9:34 pm
Posts: 2386
Location: Copenhagen, Denmark
We are approaching the end of restoration of Helsingør Hornbækbanen number 4 https://veterantoget.dk/materiel/damplokomotiver/hhb4/. One of those pesky modern requirements is that we have a speedometer. HHB 4 did not originally have one, but the Danish railways did from the turn of the 20th century. We had parts from a Danish railways G locomotive for a water speedometer. These are being installed to satisfy our requirement for a speedometer. The speedometer consists of a turbine, belt driven from a drive axle, and a water column in the cab.


Attachments:
File comment: Water turbine mounted inside frames for belt drive from driving axle for supply to speedometer
HHB 4 water turbine.jpg
HHB 4 water turbine.jpg [ 264.76 KiB | Viewed 829 times ]
File comment: In cab water column for speedometer
Speedometer cab water column.jpg
Speedometer cab water column.jpg [ 256.3 KiB | Viewed 829 times ]

_________________
Steven Harrod
Lektor
Danmarks Tekniske Universitet
Offline
 Profile  
 
 Post subject: Re: Bet you never saw a water turbine speedometer before
PostPosted: Sat Jun 27, 2020 10:55 pm 

Joined: Sun Apr 02, 2017 3:13 am
Posts: 64
GPS speedos unacceptable?


Offline
 Profile  
 
 Post subject: Re: Bet you never saw a water turbine speedometer before
PostPosted: Mon Jun 29, 2020 6:50 pm 

Joined: Wed Jun 13, 2012 10:38 pm
Posts: 303
Location: Copenhagen, Denmark
Oh they definitely are, but they just dont fit into the interior of a 1910's steam locomotive that well. The parts are approved under the government body that regulates us, and they would have continued to sit on a shelf if we didnt decide to use them, so the decision was taken of "why not!?".

The choice was made before I became the project leader, but I will admit to being an enabler after the fact. We didn't have a speed-o plate with the right speed range on it, so I copied drawings for the right one in cad and then cast the new plate off of a 3d print.


Attachments:
IMG_7667.jpg
IMG_7667.jpg [ 309.73 KiB | Viewed 328 times ]

_________________
Stuart Harrod
Steam shop machinist
Nordsjællands Veterantog
Veterantoget.dk
Offline
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC - 5 hours [ DST ]


 Who is online

Users browsing this forum: Bing [Bot], Google [Bot], Steve A W and 94 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to: