Steam Pump Westinghouse type

[jack81007]

Hi all,

I would really like to make one of the above for my 7 1/4 loco,dont like the look of the Southworth types so i have homed in on the Westinghouse type.

Question,is there any drawings available in the magazines?

I have come across this site www.friendsmodels.com/locomotiveaccessories/workingsteampumps.html but it is american based.


Hope someone can help


Cheers

[arch1947]

HI Jack, I am keen to make one for my 5" J Class. The prototype had a cross compound Westinghouse air compressor but I can't find any scale drawings. There are drawings available from the US but I can't find the web site, probably need to do a bit more surfing.
You could try looking at Nelson Locomotive, there is a blow by blow description of building a single stage Westinghouse shown there.
Cheers,
Arch

[steam4ian]

Gentlemen

Try contacting Tel on this web site I recall he had plans. I think AME also published a design.

My loco has a steam driven pump of approximate Westinghouse appearance and is quite compact. It has been used on a number of locos at my club and is very reliable. Instead of the fiddly shuttle valve the main valve spindle is driven from the piston rod by means of compressed springs and a latch. At the end of each stroke the latch releases the valve spindle and the approproiate compressed spring drives the valve spindle.

Arch, as for the J it is quite likely that at some time in a Js career it got a single stage compressor just because that was what was available at the depot; its sister K class had single stage compressors I think.

As for the cross compound you could drive the valve on one pump stage from the piston of the other stage much like a Worthington pump; this would be very simple.

Regards
Ian

[jack81007]

Thanks contacted the chap at Nelson not expecting a reply and he did reply and offered to answer any questions as i build,not ready to start yet but what a nice chap.
He did say all the detail required is on his website although he admitted his drawings are not the best.


Cheers again all


J

[jack81007]

What website has the drawings Steam4ian?

[jma1009]

if you can get hold of the Don Young 'Newport' drawings, and construction series in LLAS there is a westinghouse pump. it is probably the smallest practicable size, and even then you need to do quite a bit of precision drilling. i would say that making an injector from scratch is a considerably easier proposition. there are lots of drawings available of the fullsize westinghouse pumps online.

cheers,
julian

[4fbuilder]

Good afternoon all.

Don Young also included in his Lucky 7 a design for a Westinghouse type pump, I understand this was basicly the BSCSP pump described in the American "Modeltec" magazine for November 1984; its construction was described along with full drawings but I understand it contained a number of errors which were subsequently rectified together with the necassary drawings by Bill Esty in the Modeltec edition for September 1985. Should you like copies of those articles please contact me at my e-mail address.
One of the smallest Westinghouse type pumps I know of was one I built many years ago for my 5" Terrier, although slightly over size for that locomotive it ended up on the late Lionel Woodhead's Brighton B4; condensation was its main problem, no doubt due to the tiny passages, but once cleared and provided the steam was left on it would run well, quite slowly in fact.
For a cross compound type pump in 5" doubling up LBSC's duplex as described in his "Live Steam" book will give a reasonable start for sizes, ports etc.

I trust the forgoing will be of some assistance.

Regards,

Bob Youldon

[arch1947]

Hi Ian, Try this site www.nelsonslocomotive.com/Shay/shay.htm . It details construction of a Shay and part of that project was the Westinghouse pump. You may need to do some of your own designing but you can get the general idea.
Cheers,
Arch

[arch1947]

Hi Again, This is the US based site I was waffling about www.plan-ahead-designs.com/index.html . Worth looking at.
Cheers,
Arch