April 7, 1914. We continue our celebration the 97th Anniversary of Grand Trunk Pacific driving the Last Spike at Fort Frazer, British Columbia.
Photographs of the tracklaying machines used by the Grand Trunk Pacific totally fascinate me. Written accounts by various observers told of hearing the cacophony of racket these "mantis-like" machines created, long before they hove into view!In my previous post, I cited an example of how "Cart and Wagon" tracklaying, with a good crew, could lay a mile of track in two days! Well, with dozens of railroad projects going on in both Canada and the United States, by necessity, systems began to emerge for speeding up the tracklaying process to span long distances.
From various sources, we learn that the speed with which these "machines" advanced was influenced by a number of factors, including how well the laborers worked with each other, logistics of supplies, the number of bridges or trestles required, and, of course, the terrain.
One famous "speed" record for tracklaying - the one everyone remembers - the 10 mile laydown accomplished by the Central Pacific in 1869. Ten miles of track laid in one day. The reality is, materials were pre-positioned, with more than 4,000 workers on site. I consider the "feat" a publicity stunt, one of many to promote the first transcontinental crossing.
It did not represent the reality of track laying.


- The troublesome Kitselas Canyon area on the Skeena River east of Terrace, which called for hard rock tunneling and the building of a spectacular bridge over the Skeena.
- The four crossings of the Fraser River east of Fort (Prince) George, where temporary spans were constructed to allow access of bridge building crews. Moreover, construction engineers were confronted by unanticipated destruction of temporary structures by ice flows.
Laydown over those bridge construction sites was measured in feet, not miles, per day!
The reality of economics was that for the entire campaign from Winnipeg to Prince Rupert, the average speed of tracklaying was 2 to 3 miles per 10-hour day. This was made possible by employing the Robert's Steam Tracklaying Machine.
Early tracklaying machines were, in reality, material handling systems. They advanced construction material from a string of flat cars to the leading car, where laborers grappled and placed ties and rails. They did not actually construct the final rail structure. I was able to identify at least seven rail material handling solutions:




If you mechanize this system, the result is very similar to the Robert's Steam System.

As I study this design, the question becomes one of; How do the ties get to the forward conveyor? And how did the rails get there?
It is not clear that this machine was ever manufactured.
Two systems that totally avoided man-handling ties and rails included:
- The Wescott System
- The Hurley System
Charles Oscar Wescott of Puyallup, Washington. The Track-Layer & Manufacturing Company, of Tacoma. As can be readily seen from the accompanying illustration, the machine consists essentially of a steel truss, mounted on a flat car, provided with the necessary pneumatic hoists and conveyors to advance ties and rails.

- Four men to operate the machine and feed ties and rails
- Four strappers
- Eight spikers
- Four nippers
- Six tiemen to distribute and space ties
- One peddler
- One foreman.



Of interest to us in the building of the Grand Trunk Pacific, the F.P. Robert's Steam Tracklaying System, manufactured in Seattle Washington.


See Also:
April 7, 1914 - The Tracklayers
April 7, 1914 - Last Spike Grand Trunk Pacific
0 Comments - Click here:
Post a Comment
"Comment" is for sharing information related to this article. "Anonymous" comments are not published.