Search results
Results from the WOW.Com Content Network
It incorporated a sub frame on which the engine and gearbox were mounted. As for later Dennis fire engines, the water pump was a centrifugal pump, rather than the piston pumps used by other makers. This was more complex to build than the long-established piston pumps, but had advantages in operation.
The Green Goddess is the colloquial name for the RLHZ Self Propelled Pump manufactured by Bedford Vehicles, a fire engine used originally by the Auxiliary Fire Service (AFS), and latterly held in reserve by the Home Office until 2004, and available when required to deal with exceptional events, including being operated by the British Armed Forces during fire-fighters’ strikes (1977 and 2002).
Fire engine, Philadelphia, 1838, trying to save adjacent building. One firefighter (with helmet) directs the water; three to his left are manning the pump. Hand-colored. To the right of the engine is a hose truck. Manually drawn fire pump in service in Edinburgh in 1824 Horse-drawn fire pump given to Brockhampton Estate in 1818
1916 N-Type fire engine Jezebel 1953 F8 Fire Water Tender Hong Kong Fire Services Department Dennis Sabre fire engine. Dennis fire engines were noted, from their 1908 outset, for their use of a Gwynnes made centrifugal pump or 'turbine' as a water pump, rather than the piston pumps used by other makers. This was more complex to build than the ...
An early device used to squirt water onto a fire is a squirt or fire syringe. Hand squirts and hand pumps are noted before Ctesibius of Alexandria invented the first fire pump circa the 2nd century B.C., [3] and an example of a force-pump possibly used for a fire-engine is mentioned by Heron of Alexandria.
Over 1,750 Dennis RS/SS fire engines would be produced, being sold to nearly all fire brigades across the United Kingdom as well as being exported to various fire brigades worldwide. [6] As the appliances aged, RS and SS series appliances were known to suffer from corrosion particularly around the cab doors, nicknamed "Dennis Disease" by mechanics.
The main standard that governs fire pump fixed-place installations in North America is the National Fire Protection Association's NFPA 20 Standard for the Installation of Stationary Fire Pumps for Fire Protection. [1] Fire pumps are powered most commonly by an electric motor or a diesel engine, or, occasionally a steam turbine.
A compact 12 hp motor driven centrifugal pump for irrigation purposes (300 gallons per minute) A small hop washing plant driven by a 2 hp 'bicycle' motor; A general purpose estate pump using an 8 hp motor, and three throw Hatfield pump; An unusual Merryweather product was a moving wall for the Royal College of Physicians.