08 April 2014

Cambria Iron Company Part 2

In Part 1 of "Cambria Iron Company"  I introduced the first map of the iron plant circa 1853 between Johnstown and Cambria City Pennsylvania. In this post I'll show the next map from the HAER from the LOC dated in 1878.

Click for High Resolution TIFF from the LOC
Compared to the first image you can see that many additional structures have been added.  Important to note are the Iron and Steel Rail Mills, the Belgian Coke Ovens, Bessemer Plant and the coal washer (all highlighted in red above)

It's unclear to me if the coke ovens described in the US Census 1880 Special Reports on Petroleum, Coke, and Building Stones, Volumes 1-2 diagram of Cambria Iron Company's Coke Ovens is accurate but below is a diagram from that report:
Click here to go to Google Scanned Report

Additionally the above report has diagrams of coal washers of the time period see pages 76&77

All pretty sophisticated for the day!  What I believe to be one of the most important structures is the one dedicated for the Bessemer process.
File:Bessemer Converter (PSF).jpg
From Wikipedia
The Bessemer process introduced moving air through the molten pig iron to create reliable steel.  The process used a crucible with fittings near the bottom called tuyeres that introduced air to the molten iron, that air brought oxygen into the mix and the process of oxidation assisted in removing impurities and thereby improving the quality of the steel.

Finally if you'd like to check out a very coarse georeferenced version of the above map in Google Earth please click on the caption of the below image:

Click Here for KMZ file of the above Image

05 April 2014

Cambria Iron Company Part 1

The Johnstown Pennsylvania area is known for more than it's famous flood.  It shares with Cambria, PA the origins of Cambria Iron (which later become Cambria Steel, then a division of Bethlehem Steel, more on that in the next following posts).  For a brief history check out this pdf from the Library of Congress.

I've chosen this site for a few reasons.  I love Pennsylvania.  I love trains.  I love geography and I've got some maps courtesy of the Historic American Buildings Survey/Historic American Engineering Record/Historic American Landscapes Survey  (HABS/HAER/HALS) at the Library of Congress (LOC).

To the map! This first map represents the Cambria Iron Works in 1853 when it opened. If you click on it a high resolution TIFF will begin to download.
 Click to Download HQ TIFF File

I've been tinkering around in QGIS and have quickly georeferenced the Cambria maps series. It's a neat way to see how the works has evolved over time and space.  If your new to GIS check out these links:
QGIS (Open Source) http://www.qgis.org/en/site/

 and converted it into a KMZ that you can open in Google Earth.  Looks neat with the elevation options set to 1 and 3D buildings switched on.  

Clicking the above image will begin a download for a a Google Earth file of the 1853 Cambria map that you can open and explore.  This one isn't so great (finding control points was a bit tough for this map) but I think you'll like the others coming over the next few days. Stay tuned!

16 October 2013

Barn plans and outbuildings (1903) Edwin Powell

Wednesday again!  A VERY detailed text with neat plans of buildings for all types of livestock and crops. Inside are plans for ice houses, piggeries, pigeon houses, bird houses and dog kennels.

The source:
Happy modelling!

09 October 2013

Modern schoolhouses : with plans and illustrations of the newest in schoolhouse architecture (1919) by Walter La Chance

It's Wednesday so it's time for more building plans!  This week it's the "Modern" Schoolhouse.
Nice touches include some advertisements at the beginning, followed by some of the theory behind the designs, recommendations and finally...plans!

The source link:
Read online or download.
Happy Modelling!

02 October 2013

Louden Barn Plans (1915)

Another week, another building plans post.   Departing from the residential homes, this week we're featuring barns! Barns for Cows, Horses, Chickens, Hogs.  Even a creamery!

Here's the source link:
Downloadable to boot!
Happy modelling!