Joshua Bigwood & Son Limited


From the cover of the 1958. Traughber Filter brochure. Courtesy of Paul Nightingale.


The introduction from the Traughber Filter brochure. Courtesy of Paul Nightingale.


Traughber wet dust collectors. From the brochure, courtesy of Paul Nightingale.


A 40,000 c.f.m. 'T' type filter handling sinter dust at a steelworks. Courtesy of Paul Nightingale.


An 'S' type filter handling 10,000 c.f.m. of air. Courtesy of Paul Nightingale.


Dry Cyclone collectors. From the brochure, courtesy of Paul Nightingale.


Twin 'Throughput' Cyclones, each handling 10,000 c.f.m. of air. Courtesy of Paul Nightingale.


Troughber 'T' type filters. From the brochure, courtesy of Paul Nightingale.


A diagram of a Troughber 'T' type filter. From the brochure, courtesy of Paul Nightingale.


A 9,000 c.f.m. 'T' type filter, handling crushed slag dust. Courtesy of Paul Nightingale.


A diagram of a Troughber 'S' type filter. From the brochure, courtesy of Paul Nightingale.


Troughber 'S' type filters. From the brochure, courtesy of Paul Nightingale.

Troughber 'S' type filters. From the brochure. Courtesy of Paul Nightingale. A 5,000 c.f.m. capacity plant handling limestone dust. Initial separation is by a 'Throughput' Cyclone and secondary collection by an 'S' type filter. Courtesy of Paul Nightingale.


Troughber 'Efficiency' cyclones. From the brochure. Courtesy of Paul Nightingale.

Twin 'Efficiency' cyclone pre-collectors, each handling 2,250 c.f.m. of gases at 150 degrees centigrade, with a slag dust admixture.

An 'S' type filter with overhead sludge discharge is fitted as a secondary collector.

From the brochure. Courtesy of Paul Nightingale.


A general view of a Traughber extraction plant exhausting from a Tarmacadam Coating and Mixing plant. Another Troughber installation at these works is handling dust drawn from the secondary crusher plant. From the brochure. Courtesy of Paul Nightingale.


Filtration efficiency. From the brochure. Courtesy of Paul Nightingale.


Twin 'Throughput' cyclone pre-collectors with 'S' type filter units. Each plant is handling 10,000 c.f.m. of gases at 135 degrees centigrade. The collected slag dust is discharged through gravity chutes into a ground filler hopper. From the brochure. Courtesy of Paul Nightingale.
A close-up view of a ground filler hopper.

From the brochure.
Courtesy of Paul Nightingale.

The 'Throughput' range of separators.

From the brochure.
Courtesy of Paul Nightingale.


From the brochure. Courtesy of Paul Nightingale.


From the brochure. Courtesy of Paul Nightingale.


From the brochure. Courtesy of Paul Nightingale.


From the brochure. Courtesy of Paul Nightingale.


A photo at an unknown site with Troughber dust extraction equipment. Courtesy of Paul Nightingale.


Return to the
Bigwood section