It is currently Mon Jul 13, 2020 1:56 am

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 16 posts ]  Go to page 1, 2  Next
Author Message
 Post subject: Did New York Air Brake produce steam brake components?
PostPosted: Tue Jun 23, 2020 8:05 pm 

Joined: Wed Jun 13, 2012 10:38 pm
Posts: 303
Location: Copenhagen, Denmark
This gauge perplexes me quite a good deal. Its here in Denmark, and likely came over with one of the locomotives built by Baldwin for a shortline road called Syd Fynsk Jernbane. Being as all the locomotives Baldwin built for Denmark were either steam brake, or vacuum equipped, I doubt this was used in an air brake application.

History aside, did NYABC produce components for steam brake systems back in the day? (1890's). If so, this definitely narrows the origin of this gauge down to three locomotives. If not, it adds quite a bit more confusion and mystery to the history of this gauge.


Attachments:
SFJ 16 manometer.JPG
SFJ 16 manometer.JPG [ 93.17 KiB | Viewed 1137 times ]

_________________
Stuart Harrod
Steam shop machinist
Nordsjællands Veterantog
Veterantoget.dk
Offline
 Profile  
 
 Post subject: Re: Did New York Air Brake produce steam brake components?
PostPosted: Wed Jun 24, 2020 7:57 am 

Joined: Sun Jul 22, 2018 2:03 pm
Posts: 25
Quote:
History aside, did NYABC produce components for steam brake systems back in the day? (1890's).


They did. According to Wikipedia, "New York Air Brake was established on July 1, 1890 acquiring all of the property and business of Eames Vacuum Brake Company."

Regards,
Bob Milhaupt


Offline
 Profile  
 
 Post subject: Re: Did New York Air Brake produce steam brake components?
PostPosted: Wed Jun 24, 2020 9:33 am 

Joined: Tue Sep 14, 2004 7:52 am
Posts: 1824
Location: Strasburg, PA
NYAB also built brake valves and compressors to the Westinghouse designs, I assume after the patents ran out. I have seen many 6ET brake valves and even cross compound air compressor cylinders with NYAB cast in them.

_________________
"It was not easy to convince Allnutt. All his shop training had given him a profound prejudice against inexact work, experimental work, hit-or-miss work."
C. S. Forester

Strasburg Rail Road Mechanical Department


Offline
 Profile  
 
 Post subject: Re: Did New York Air Brake produce steam brake components?
PostPosted: Wed Jun 24, 2020 12:09 pm 

Joined: Sun Jul 22, 2018 2:03 pm
Posts: 25
According to the Wikipedia article on New York Air Brake Co (https://en.wikipedia.org/wiki/New_York_Air_Brake), in the second paragraph of subheading "Expansion and a new plant 1900-1914",
Quote:
In 1912, NYAB and Westinghouse agreed to share the market, along with research and development.


This R&D sharing agreement led to common implementations. For example, Westinghouse produced the 6ET schedule, while NYAB produced the 6LT schedule. They were approximately equivalent implementations.

It is my understanding is that newer brake schedules tended to have comparable implementations from both vendors, with similar schedule numbers/names.

Regards,
Bob Milhaupt


Offline
 Profile  
 
 Post subject: Re: Did New York Air Brake produce steam brake components?
PostPosted: Wed Jun 24, 2020 12:31 pm 

Joined: Sun Jul 22, 2018 2:03 pm
Posts: 25
Stuart,

I think I mis-interpreted your post. I focused on "brake components" for steam locos, as opposed to "steam brake components" for (steam) locos. (I love the ambiguity of the English language!)

I do not have any specific knowledge or information at hand which speaks to the "steam brake component" question.

Regards,
Bob Milhaupt


Offline
 Profile  
 
 Post subject: Re: Did New York Air Brake produce steam brake components?
PostPosted: Thu Jun 25, 2020 8:07 pm 

Joined: Wed Jun 29, 2016 11:58 am
Posts: 81
Bob Milhaupt steamy wrote:
Quote:
History aside, did NYABC produce components for steam brake systems back in the day? (1890's).


They did. According to Wikipedia, "New York Air Brake was established on July 1, 1890 acquiring all of the property and business of Eames Vacuum Brake Company."

Regards,
Bob Milhaupt



I would expect a gauge showing form zero to fourteen would be for a vacuum brake system.

Does that help narrow down the original provenience?

Brian


Offline
 Profile  
 
 Post subject: Re: Did New York Air Brake produce steam brake components?
PostPosted: Thu Jun 25, 2020 9:55 pm 

Joined: Sun Aug 22, 2004 7:19 am
Posts: 5783
Location: southeastern USA
And the units of measurements are kilograms per centimeter squared. Interesting...... approximately 200 PSI. That's a shitload of vacuum.

_________________
Santayana: "He who does not remember the past is condemned to repeat it."
Corollary: "He who does is doomed to watch those who don't repeat it anyway."


Offline
 Profile  
 
 Post subject: Re: Did New York Air Brake produce steam brake components?
PostPosted: Thu Jun 25, 2020 10:00 pm 

Joined: Sun Aug 22, 2004 8:51 pm
Posts: 1822
Location: Southern California
Regarding the gauge. How about atmospheres of pressure for a power brake system?

1 atmosphere = 14.69 psi

_________________
Brian Norden


Offline
 Profile  
 
 Post subject: Re: Did New York Air Brake produce steam brake components?
PostPosted: Thu Jun 25, 2020 11:14 pm 

Joined: Sun Jul 22, 2018 2:03 pm
Posts: 25
Dave wrote:
Quote:
And the units of measurements are kilograms per centimeter squared. Interesting...... approximately 200 PSI.


I confirm that conversion from kg/cm^2.

Dave then wrote:
Quote:
That's a shitload of vacuum.


I do not believe that you can get 200 PSI of vacuum. If I recall high-school physics class correctly, the highest vacuum possible is equivalent to all the weight of the matter in the column above the vacuum. This would limit the vacuum to be the equivalent of the "absolute" pressure of that column of air. For scientific convenience, such work is done at "sea level", where the absolute pressure is something like 14.6 PSI. This gives a maximum equivalent vaccum "pressure" of 14.6 PSI. So the idea of a vaccum gauge going to 200 PSI Vacuum is, effectively, bogus.

As such, I believe that the gauge in question is not a Vacuum gage, but is instead an old-style metric equivalent of a standard 0-200 PSI pressure gauge.

Regards,
Bob Milhaupt


Offline
 Profile  
 
 Post subject: Re: Did New York Air Brake produce steam brake components?
PostPosted: Fri Jun 26, 2020 1:33 am 

Joined: Thu Apr 14, 2005 9:34 pm
Posts: 2386
Location: Copenhagen, Denmark
It’s a metric gauge. The unit is BAR.

_________________
Steven Harrod
Lektor
Danmarks Tekniske Universitet


Offline
 Profile  
 
 Post subject: Re: Did New York Air Brake produce steam brake components?
PostPosted: Fri Jun 26, 2020 2:18 am 

Joined: Sun Aug 22, 2004 8:51 pm
Posts: 1822
Location: Southern California
Wikipedia page: Bar (unit)

_________________
Brian Norden


Offline
 Profile  
 
 Post subject: Re: Did New York Air Brake produce steam brake components?
PostPosted: Fri Jun 26, 2020 7:29 am 

Joined: Sun Aug 22, 2004 7:19 am
Posts: 5783
Location: southeastern USA
Read the face of the gauge - small print directly above the Ashton logo.

_________________
Santayana: "He who does not remember the past is condemned to repeat it."
Corollary: "He who does is doomed to watch those who don't repeat it anyway."


Offline
 Profile  
 
 Post subject: Re: Did New York Air Brake produce steam brake components?
PostPosted: Fri Jun 26, 2020 2:36 pm 

Joined: Thu Aug 05, 2010 2:06 am
Posts: 217
And I do like the way they indicated Kilos per square centimeter with the small square stamped in with the rest of the type........mld


Offline
 Profile  
 
 Post subject: Re: Did New York Air Brake produce steam brake components?
PostPosted: Fri Jun 26, 2020 4:54 pm 

Joined: Sun Jun 17, 2007 8:03 pm
Posts: 970
Location: Warszawa, Polska
mldeets wrote:
And I do like the way they indicated Kilos per square centimeter with the small square stamped in with the rest of the type........mld


I've seen that on a number of gauges as well (an actual square to indicate "square")

_________________
CNR 6167 in Guelph, ON or "How NOT To Restore A Steam Locomotive"


Offline
 Profile  
 
 Post subject: Re: Did New York Air Brake produce steam brake components?
PostPosted: Mon Jun 29, 2020 11:49 am 

Joined: Tue Aug 27, 2019 9:48 pm
Posts: 212
Location: Milford,Ma
Well, we know that the gage was built by the Ashton Valve company. If you post the serial number on the face it might be possible to figure out what year it was made. That particular logo was used from the 1870's to the 1930's. The Ashton Valve company had representatives all over Europe around the turn of the century and they also would add any imprints a customer wanted on the dial at no charge. I've never seen an Ashton gage in Kilos before but it wouldn't have been too difficult for them to customize it. It looks in great shape. Did you have it restored?


Attachments:
Ashton Valve logo chart.jpg
Ashton Valve logo chart.jpg [ 331.69 KiB | Viewed 259 times ]
Offline
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 16 posts ]  Go to page 1, 2  Next

All times are UTC - 5 hours [ DST ]


 Who is online

Users browsing this forum: Bing [Bot], Google [Bot] and 106 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: