Haematite and High Explosives: Mining in Victorian Moor Row
In the haematite mines of Moor Row, the extraction of iron ore required the use of explosives to penetrate the surrounding hard rock. The work was divided between those who prepared the ground, those who extracted the ore, and the officials responsible for safety.
Operational Roles
Overman / Fireman: These were under-officials in the mine, qualified to use explosives and responsible for safety, including checking for gas with a Davy lamp. While iron ore mines were less gassy than coal mines, these checks were mandatory before blasting to detect firedamp or blackdamp.
Crutter / Ripper: Miners who drove new tunnels (cruts) through rock, often needing blasting. Rippers followed to blast the roof or sides to enlarge the roadways for haulage.
Hewer: The actual miner who loosened the iron ore from the seam, but might not be the one setting the shots. Once the shot was fired, the hewer used picks and bars to break the ore and load it into bogies.
Setting a charge in a Moor Row haematite mine was a delicate, multi-stage process that required both physical strength and a keen understanding of geology.
Who Set the Charges?
In the late 19th century, the responsibility shifted due to tightening legislation.
- Pre-1872: Individual miners often bought their own gunpowder and set their own shots. This led to high accident rates due to poor technique or "cutting corners" to save money.
- Post-General Rules (Late 1800s): The task became the domain of the Chargeman or Shot Firer. Usually a senior miner or an Overman, this person had to be "competent" and, eventually, certified. In a "gang" of miners, one specific man was designated the Chargeman; he held the keys to the explosive canister (the "powder tin").
The Process: Setting the Shot The process of "winning" the ore followed a specific sequence of manual tasks.
1. Boring the Hole
Before an explosive could be placed, a hole had to be drilled into the "face" (the rock wall).
- Hand Drilling: Two miners worked together. One held the jumper (a long iron bar with a chisel tip), rotating it slightly after every blow, while the second miner struck it with a heavy sledgehammer.
- The Depth: Holes were typically bored to a depth of 2 to 4 feet. In the hard limestone surrounding Moor Row's haematite, this was back-breaking work that could take hours.
2. Charging the Hole
Once the hole was cleaned of dust using a scraper (a long copper rod with a spoon-like end), the explosive was inserted.
- The Explosive: For iron ore, Black Powder was often used in paper cartridges. For harder "dead ground" (rock without ore), Nitro-glycerine compounds like Dynamite were used.
- The Fuse: A length of safety fuse was inserted into the final cartridge (the primer).
3. Stemming (The Most Dangerous Part)
To ensure the blast blew into the rock rather than just shooting out of the hole like a cannon, the hole had to be "stemmed."
Miners used inert material - usually clay, damp rounded dirt, or pounded shale - to plug the hole on top of the explosive.
- The Tool: A Stemming Bar was used to ram the clay tight. As seen in the case of William Tremayne (below), using a metal bar was lethal.
By the 1890s, safety regulations strictly mandated wooden rammers to prevent sparks from flint or friction.
4. Firing
After the Overman shouted a warning (usually "Fire!" or "Below!"), the fuse was lit.
In Moor Row, the fuse was often lit using a "spall" (a small piece of candle or a glowing touch-paper).
The miners would then retreat to a "refuge hole" or around a corner in the tunnel, counting the explosions to ensure every charge had successfully detonated.
Key Safety Equipment in Moor Row
- Copper Scrapers: Copper was used because it is "non-sparking," unlike steel or iron.
- The Powder Tin: A lockable tin used to carry cartridges from the surface magazine to the working face.
- The Pricker: A thin copper needle used to create a channel through the stemming for the fuse, ensuring the spark reached the heart of the charge.
Explosives and Blasting Hazards
Gunpowder (Black Powder): Used for blasting the ore. Its heaving action helped break the haematite into large lumps. Dynamite / Gelignite were powerful explosives used by crutters to blast through hard limestone.
Hanging Fire: A common cause of death for shot firers was returning to a charge too early. If a fuse smouldered internally, it could detonate as the miner approached.
- While the fuse "smouldered internally," the danger often came from a "hangfire" where the chemical reaction in the gunpowder itself was delayed, or the fuse had been pinched by the stemming material, slowing the spark.
Accidents
John Scurr (1881) - Montreal Mine
- The Inquest: Held at the Grapes Inn, (2 Dalzell Street) Moor Row.
- The Findings: Scurr was a "Chargeman" (the man responsible for the explosives in his gang). He had lit a shot and retreated, but when it failed to fire within the expected time, he returned to the face. The charge was "hanging fire" and exploded as he reached it.
- Verdict: Accidental death, but with a warning from the Inspector regarding the "suicidal" practice of returning to a missed shot before the statutory 30 minutes had passed.
William Tremayne (1894) - Montreal Mine
- The Inquest: Held locally in Moor Row.
- The Findings: Tremayne, an experienced Cornish miner, was killed during "stemming." He was using a rod to pack clay into a hole already charged with gunpowder. The friction or a spark from a small piece of flint caused the premature blast.
- Verdict: Accidental death. This case led to stricter enforcement of using wooden rammers instead of iron or copper-tipped rods to avoid sparks.
Roof Falls
Blasting often destabilised the roof. The Fireman’s failure to properly sound the roof after a shot put Hewers at risk.
Joseph Rodgers (1906) — Montreal Mine
- The Inquest: Held in Cleator Moor.
- The Findings: Rodgers was killed by a roof fall of haematite and limestone. The inquest focused on the Overman's inspection. It was found that a blast had been fired earlier that shift, which had loosened a "sop" (a pocket of ore) in the roof that wasn't detected by the subsequent "sounding" of the rock.
- Verdict: Accidental death.
Henry Barker (1888) — Moor Row District
- The Inquest: Held in Cleator Moor.
- The Findings: Barker was killed by side-rock falling in a tunnel. The inquest revealed that a Crutter (tunnel driver) in an adjacent working had fired a heavy charge of gelignite. The vibration from this shot fractured the wall where Barker was working.
- Verdict: Accidental death, noting a lack of communication between the two working parties.
![]() |
| Roof Fall Illustration |

Comments
Post a Comment
Comments are welcome. Spam will not be tolerated. Strictly no advertising.