Case Studies - Mechanical Engineering
An articulated compensator in a 1600mm diameter 300ºC air supply line in a metallurgical industry failed in service. The owners/ insurers of the plant raised a civil action against the compensator's manufacturer and its insurers.
Back injury from moving bins
A council employee allegedly injured his back moving large metal wheeled bins in and out of a bin store. The matter hinged on whether various provisions of the Manual Handling Operations Regulations 1992 had been breached. In this case the manual handling involved pushing and pulling rather than lifting. However, the regulations and associated guidance cover this type of manual handling and give suggested limits to the load to be pushed/pulled. The space available was confined and the floor sloped.
Chemical plant boilers
Cadogans acted as expert witness on a dispute relating to the design and performance of new boilers at a chemical plant.
CHP at Western General Hospital
The Western General Hospital is a large acute hospital situated in north west Edinburgh. Scottish & Southern Energy (SSE) operates the energy centre including steam boilers, emergency generator, etc. on behalf of the Hospital Trust. SSE also supplies the hospital with electricity from the grid.
Circular saw personal injury
Woodworking equipment is the cause of a significant number of industrial injuries each year and circular saws are particularly hazardous.
Clinical waste incineration
To enable decisions to be made on future strategy for clinical waste disposal, feasibility studies were carried out for several health boards.
Clinical Waste incinerator
In 1993 Borders Health Board decided that the disposal of clinical waste required a long-term strategy and a high degree of self reliance. Cadogan Consultants carried out a feasibility study and recommended incineration as the best option.
Collapse of silo bins during demolition
There was an uncontrolled collapse of a row of silo bins during their demolition at an old mill. The concrete silos under demolition comprised a rectangular array of silo bins, each being approximately 3 meters across and over 30 meters high. The silos were supported on a grid of concrete columns.
Contractual dispute at CCGT Power Station
Contracts were in place which had IMechE/IEE Model Form MF/1 as the general conditions. The contractor having suffered delays, disruption and additional expenses because of alleged misrepresentation implied terms and general
The project was carried out at a small distillery near Glasgow. Effluent from the process includes spent lees with high organic content and slight acidity. The effluent is discharged to a pond where suspended solids settle out and some microbiological activity takes place. After treatment water is discharged to local streams.
Exploding calorifier personal injury
An employee at a leisure centre was badly injured when a calorifier exploded because the pressure relief valve failed to operate. The employee raised a civil action against the employer which in turn involved two third parties in the action.
Fall on a staircase
An office employee tripped, fell and was injured while making their way from the ground floor down the internal stairs towards the basement level.
Fast rescue craft personal injury
A fast rescue craft was being lowered from a vessel with a maintenance engineer in the craft. The wire rope holding the craft snapped, causing injury to the engineer.
Glass bottle making machine personal injury
An employee at a glass bottle making factory suffered a hand injury when it was caught in an glass bottle making machine which started to operate unexpectedly. The employee raised a civil action against the employer.
Heavy Load on Modular Trailer
A 200 tonne package generator was positioned on a modular trailer on a dockside prior to being loaded on a ship for transport overseas. While unattended the generator slid off the trailer causing damage to staff at neighbouring buildings. A subjugated action involving insurance companies was raised.
Inchinnan Bridge Restoration
This project, involving the complete restoration of the 1923 Scherzer style Inchinnan Bascule Bridge over the White Cart Water in Renfrew, was completed in August 2004 at a cost in excess of £1 million. This major civil engineering project by Renfrewshire Council has saved this important road link from imminent closure, allowed removal of a long standing weight restriction and, by re-establishing the opening facility, has secured the use of the river for freight and pleasure craft.
Injury while wearing protective gloves
A man was assisting his colleagues to load materials for recycling into a vehicle. He was wearing a pair of protective gloves. While removing the mixed materials from a recycling bin his hand was cut by the neck of a broken glass bottle.
Mixing machine personal injury
A mixing machine in a soap factory was modified for production reasons soon after it was purchased.
Mud Pump Failure
A British company had purchased a pump for use with drilling mud for onshore exploration. After less than 200 hours of operation the pump failed.
Plastic moulding personal injury
An employee at a plastics factory suffered a hand injury in a plastic moulding machine. The Health and Safety Executive raised a criminal prosecution against the employer under the Health and Safety Act.
Shuaiba Oil Pier M and E
Shuaiba Oil Pier M and E
Sliding Doors for an industrial Radiographer
A mating pair of sliding doors was provided for an industrial radiography chamber. Tight construction tolerances were required to keep radiation leakage within safe levels. At the same time, being in a busy industrial environment, heavy usage of the doors was expected.
Slip in a lift
Workers used a lift shortly after cleaners had carried out daily cleaning work. The lift had been mopped, however, cleaning was not followed up by a dry mop to dry the lift floor. In addition, the cleaners did not put out any cautionary signs to suggest that the lift floor might be wet. On entering the lift, one of the workers slipped and sustained injuries.
Solvent Recovery Project
Cadogans was responsible for the development and implementation of a project for the recovery of a solvent (furfural) from a refractory process. The process involved the mixing of a number of dry powders with a resin to form the basic refractory type material for the mix. The mix is then used to form refractory moulds. The solvent is used to assist the distribution of the resin through the mix. Most of the solvent is then evaporated off the mix in the dryer. Cadogans conducted trials and developed a process to recover the solvent after evaporation.
Supermarket checkout personal injury
A young customer was able to gain access to the underside of a checkout conveyor. The conveyor should have stopped but it did not. The child's arm was trapped in the conveyor mechanism. Fortunately the child escaped with only minor injuries.