The machine shop

If the erecting shop was where the works showed off, the machine shop was where it worked. Rows of lathes, drills, planers and borers ran the length of the bay under a forest of line shafting and belts, and every casting or forging that would become a part of an engine passed through it to be cut to size. It was the shop with the most benches, the most men and the most apprentices, which is why so many of the names on the roll call read machine shop after them.

What the machines made

Nothing in a steam locomotive arrived finished. Cylinder blocks, axleboxes, motion parts, valve gear, pins, bushes, rods and links all came out of the foundry or the smithy rough and heavy, and the machine shop turned them into the only parts of the engine that fitted to a thou. A fitter and turner learned to hold a tolerance in his hands before he learned to read it on a drawing, because the drawing told him the number and the lathe told him the truth.

The bench and the belt

The shop ran on overhead line shafting: a steam or electric drive turned a shaft the length of the bay, and every machine took its power from a flat leather belt dropped from that shaft. A man worked inside a sound that never stopped, a drumming of belts and a ringing of cut metal, with swarf curling off the tool and piling at his boots. The apprentice's first lesson was the bench: file flat, mark off, drill square, and learn that a thou of error found by the foreman's gauge cost more pride than a week of effort earned.

The school of the works

The machine shop was where the works grew its own men. Most of the boys who came through the Cornwall Street offices in 1960, like the apprentice whose memoir the old gorton-tank.com site kept, were bound fitter and turner and sent here to learn the file, the scraper and the lathe in that order. The shop could be unforgiving, the foremen were remembered by name decades later, and the nicknames stuck harder than the trade: men on the roll are still recorded as Spike, Daz and Cosy Rosy rather than by the names on their indentures.

The way the shop was ruled

The foremen ruled by inspection. A finished part went to the gauge, the gauge went back over the bench, and a part that failed did not come back quietly. Yet the same foremen kept the craft alive: they decided which apprentice got the good lathe, which learned grinding, which stayed sweeping. The record of a boy's five years was written less in his time book than in the choice of jobs the foreman trusted him with.

The truth the lathe told

The machine shop taught a particular kind of honesty that the works depended on. A casting could hide a blowhole, a filing could hide a taper, but the lathe told the truth to the thou and the gauge repeated it to the foreman. The men who made a career of the shop carried that standard into every trade they touched afterwards, and it shows in the memoir: the apprentice who learned to work to a thou at fourteen was still measuring himself against the same standard when he wrote the account forty years later. A works is only as good as the tolerance its men accept, and the machine shop was where the tolerance was set.

The entry, checked

The machine shop's product was invisible in the finished engine, which is exactly why it mattered: the part nobody sees is the part that keeps the motion true at sixty miles an hour. The surviving accounts of its men are in the sources below.