Leo
The Boyer Speed Recorder was fitted to the CB&Q locomotives for the 1886-7 Burlington Brake Trials. I’ve attached an extract from the 1905 Westinghouse book about the Trials.
Rupert Gamlen
Auckland NZ
From: CBQ@groups.io <CBQ@groups.io>
On Behalf Of Leo Phillipp via groups.io
Sent: Sunday, 12 December 2021 1:17 pm
To: CBQ@groups.io
Subject: Re: [CBQ] Twin City Zephyr Speed Limits
Rupert, that’s a technology I would not have expected at that time ! Which in my mind raises a question. If an axle pulley would work on the locomotive why not on the waycar ?
We were still using watches and mileposts in the 1970s to gauge speed. Maybe the rear end crew didn’t need an accurate reading until something happened. Then everybody wanted to know why you weren’t aware of the trains speed ?
Nothing new about speed tapes. From 1907 Railway & Locomotive Engineering -
In this matter the Chicago, Burlington & Quincy have shown a determination to have reliable information in regard to actual speed. This road has now over a hundreds speed recorders in use
on their locomotives hauling passenger and mail trains. They use the Boyer Speed Recorder, made by the Chicago Pneumatic Tool Company.
These recorders are applied to the engines over the front truck and are bolted to an axle pulley on the outer end of the front truck axle. By meant of a fine tension wire, the movement of the recorder is transmitted to a speed gauge in the cab. The gauge is
placed in front of the engineer so that he can see at a glance just what speed in miles per hour he is making. In addition to thus indicating in the cab the rate of speed of the locomotive, a permanent record is made on a paper tape in the speed machine..
This tape is removed at the end of each round trip for future reference.
With this apparatus on the engine there is no excuse for exceeding any prescribed limit of speed and the indicator has been found very convenient for engineers when given a slow order for any portion of the road.
Rupert Gamlen
Auckland NZ
And occasionally, as if by magic, a tape would "disappear"
For anyone on the group who doesn’t have experience with the speed recorder tapes being discussed you can see one in the new BRHS Bulletin 65. Go to the center fold out pages 43-45 which show how the pencil
marked the tape .
As Pete mentioned crews wanted to know if there was a tape in the recorder and if it was working once in route.
Leo Phillipp
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