Page:A voice from the signal-box.djvu/18

14 instance, when a pointsman is letting a train in or out of a siding by hand signal upon the ground, or attending to main line points, during shunting, he is generally upon the spot, and has, of course, the points close under his eye, so that he can at once see whether they are properly closed or not. Very different is it in the high box, for the points may be a hundred, or a hundred and fifty, yards away. Between the lever in the box and the points, there are five or six cranks and double as many pins to connect them together, so that allowing for the wear and tear, it is generally found that between the lever and the points there is a certain amount of “loose motion;” and this, combined with the weather, may greatly deceive the signalmen as to the position of the points. If you pull a lever to open distant points during the time it is raining, you will find that they move very easily; but if you do the same thing after a hot sun, a dry wind, or a frost, and put an equal amount of power on the lever, you will find that it is not over in its proper place by, perhaps, two or three inches. Now, the man newly appointed to the high box, who has not had proper instruction, after giving the lever the usual pull, and finding that it does not come properly over, will most likely press it into its appointed place by the weight of his body; which pressure will, perhaps, be great enough to tighten up the “loose motion” previously referred to, and will allow him to get the lever into its proper position without moving the points any more after giving them the first pull. They will, therefore, be standing far enough open to throw the next train off the rails that approaches them in that (facing) direction. The man who knows his work, when he finds that a lever does not come over properly at the first pull, will put it back again, and give it a much sharper pull than before. This will, without doubt, have the desired effect, and should be done in all cases before a signal is lowered for a train to pass through the points.

Accidents from the above cause are of daily occurrence, and they greatly impede the attainment of punctuality, and endanger the lives of the public.