Yniscedwyn Colliery runaway, 1892

Date24 August 1892
MineYniscedwyn Colliery
RegionPowys
Primary typeHaulage / Transport
Associated typesCollapse / Roof Fall
Fatalities6 (Thomas Sims, pumpman; William Jones; Thomas Phillips; Rees Pippin, 27, repairer; Edward Anthony, 35, repairer; William Lewis, 17. The Durham Mining Museum adds Thomas Jeffreys, 18, making seven; ages differ between sources.)
InjuriesThree injured: George Flook, 38, broken leg; John Williams, 48, internal injuries; William Davies, 19, both legs broken.
Context During active mining (The start of the night shift at Yniscedwyn Colliery, Ystradgynlais, on the new 1-in-3 drift that had replaced the shaft that year.)

At six in the evening of 24 August 1892 the night shift at Yniscedwyn Colliery was waiting to ride down the steep new drift in a journey of carriages held by a scotch. One of the men kicked the scotch away before the engine was manned, the journey ran away down the 1-in-3 incline, crashed into timbers and brought down the roof, killing six men and injuring three. The inquest held the dead man who started it responsible.

A squat stone fan house on open hillside above Ystradgynlais, capping the shaft that drew air from the Yniscedwyn workings
Ynysgedwyn fan house Nigel Davies, CC BY-SA 2.0, via Geograph

Cause

The scotch holding the man-riding journey at the top of the drift was removed while the winding engine was unattended and its clutch disengaged, so the journey ran away.

Contributing factors

Anthony started the journey without the overman's order, which the overman said had never happened before; the men pushed the carriages to start them. The drift dipped 1 in 3 for 300 yards.

What happened

Water had turned the colliery's 90-yard shaft over to pumping, and a drift had been driven for men, supplies and coal, its drum coupled to the same steam engine. The men rode in a journey of carriages known locally as bridles, connected to the drum by a steel rope and held by a scotch. The journey gathered speed so fast that Flook jumped off, was pitched on his head and stunned; it crashed into timbers and a fall of roof followed. Sims, already seated, was crushed about the head; Anthony's skull was fractured; Phillips, Pippin and Lewis suffocated.

Rescue & recovery

With a fractured leg, George Flook lifted a stone off William Davies and, with Daniel Thomas, dragged Sims from under another. Doctors David Thomas of Ystalyfera and Reese of Ystradgynlais attended, and the last bodies were recovered between two and three in the morning.

Investigation & inquiry

At the inquest H.M. Inspector Robson and other inspectors gave evidence, and the overman said the journey had never before set off without his instruction. The coroner told the jury that had Anthony lived they might have found it necessary to charge him; the rest of the summing-up and the verdict are not in the portion of the account read.

Recorded claims

Individual factual claims, each attached to the source(s) that support it below. Where sources disagree, both are kept.

Related terminology

Mining terms this disaster is structurally linked to, with the nature of the relationship.

Sources

  1. (secondary) Yniscedwyn Colliery — Northern Mine Research Society (read via an August 2024 Wayback Machine capture)
  2. (primary) Durham Mining Museum: Yniscedwyn Colliery — Durham Mining Museum, from the Lists of Mines
  3. (secondary) Welsh Coal Mines: Fatalities 1892 — welshcoalmines.co.uk

Record created: 11 September 2026 · Last researched: 13 September 2026

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