
'The Hoover is no longer a luxury. It is to-day a necessity. It frees you and your servants forever from the tyranny of the broom; ends that wasteful, unavailing expenditure of human energy; and to you it means a home which is always scrupulously clean - because it can be thoroughly cleaned so easily and so rapidly.'
Manufactured: Hamilton, Ontario, Canada.
Motor: Single-speed Robbins and Myers (final examples used first Hoover-made motors). Brass sleeve bearings requiring regular manual oiling
Bag: Spreader-top, chemically-treated white sateen
Chassis: Unpolished sand-cast aluminium
Handle: Wooden broom-type
Brush-roll: Boar-hair bristle-only
Price: £25
Sold Alongside: N/A
Info:
After being manufactured at Hoover's plant in Hamilton, Ontario, the cleaners were shipped to Hoover’s London Depot. They were sold door-to-door, and through upmarket deparment stores Harrods and Selfridges.
The sateen bag was chemically-treated with a dust-proof film. Hoover recommended that the bag never be washed, brushed, or even turned inside-out, because this caused damage to the chemical coating. The thin sateen material tended to wear out relatively quickly, and Hoover's Research and Development department was continually engaged in developing bag materials which provided better filteration, and were more durable.
Despite advertising claims, at £25, a Hoover cleaner was a luxury item far too expensive for most people. The average Hoover customer purchased the cleaner to be used by their servants! They found 2250 buyers in the first year alone.
Hoover was already by far the largest and best-selling manufacturer of vacuum cleaners worldwide, but in Britain, they were largely unheard of. Part of Hoover’s challenge in introducing their product to Britain was to create a market for it. They had to explain to prospective customers why they should part with so much money for an unfamiliar appliance. Their sales pitch was as follows:
Why have a vacuum cleaner?
Why have The Hoover?

This illustration shows the Special Model 105 being used with tools - these were fitted to the front of the machine using a pan-type converter. Hoover suggested that the user disconnect the drive-belt when using tools - this freed the motor of the extra load of turning the brush-roll, and increased suction by one-third.

'Lighter, handsomer, better - the finest electric cleaner for the home ever devised by the industry's oldest and largest maker...'
Manufactured: Hamilton, Ontario, Canada
Motor: Single-speed Hoover-made unit. Brass sleeve bearings requiring regular oiling
Bag: Spreader-top, chemically-treated white sateen
Chassis: Unpolished die-cast aluminium
Handle: Wooden with fibre-grip and metal cap
Brush-roll: Boar hair bristle-only
Sold Alongside: Model 961
Price: ? Info: Model 541 replaced Model 105, and featured a number of improvements over the former model: The 541 was less expensive than the machine it replaced, due to Hoover's pioneering use of die-casting. Although still out of most people's reach, the price reduction made it more attainable. In America, Hoover sold nearly 650,000 Model 541s during the 3-year production run, nearly 250,000 units more than they sold of the 105. In 1923, Hoover sold their 1,000 000th cleaner.
Along with the improvements made to the basic cleaner, Hoover introduced a new toolkit, '1541', variations of which would continue to be supplied with British Hoover cleaners up until the introduction of the Model 160 Cleaning Ensemble in 1938.

Workers load 541's into a van at Hoover's London depot in the early 1920's. This was before Hoover's first UK factory in Perivale, west London, had been built, and these machines would have been shipped from Hamilton, Canada.
Click here to view the cover of Model 541's instruction manual

'The most marvelous electric cleaner the world has ever seen. A cleaner which required years of painstaking effort to produce! A cleaner that astounded even its makers by its spectacular performance!'
Manufactured: Canada, Hamilton, Ontario
Motor: 190w, fully-sealed, single-speed Hoover-made unit. Upper and lower ball-bearings
Bag: Spreader-top, black Ronac
Chassis: Highly-polished die-cast aluminium
Handle: Metal with ebony pistol grip
Brush-roll: Patented Hoover 'Agitator'
Sold Alongside: Models 543, 961/972
Price: £17.17.0, plus £3.3.0 for dusting tools
Info:
Model 700 has a significant place in vacuum cleaner history as the first Hoover to introduce the famous ‘Agitator’ brush-roll.
The beneficial use of vibration in extracting dirt from rugs had become apparent to Hoover’s engineers soon after the initiation of their Research and Development Program in 1909. They spent the next 17 years experimenting and testing numerous different designs for enhancing the agitation of the carpet, filing patents as they went to protect their work.
By 1926, they had perfected the concept: a metal cylinder with two rows of boar-hair brush strips, and 4 polished metal beater-bars. The beater-bars tapped gently at the rug, which was lifted off the ground and held against the nozzle by the powerful suction. This created gentle waves of vibration, shaking loose particles of grit buried deep amongst the carpet pile. This effect, known by Hoover as ‘Positive Agitation’, lead to a reported 101% increase in cleaning efficiency.
The introduction of the ‘Agitator’, protected by Hoover’s patents until 1950, gave Model 700 a distinct selling point; a feature which made it demonstrably better to all other electric cleaners. However, Model 700 also introduced a number of other significant improvements:

Pictured above is the complete Model 700 ensemble. Notice the 'Carriage Paid Home' label on the tool box uses the same orange and black design as the instruction manual, and the advertising for this model. The tool box features the words 'An Empire Product', since all Hoover products were shipped from Canada before the Perivale factory opened in west London. The tools themselves all have 'Patent Applied For' stamped on them, rather than their individual patent numbers, as found on late sets. The earliest sets of Model 700 tools come with the old upholstery nozzle with the wooden clip-off brush. The set pictured here are early second-generation tools.
Click here to view the cover of an English advertising booklet for Model 700
Click here to view the cover of the instruction manual for Model 700

'Model 725 is the finest electric cleaner ever built. 25% more efficient than any previous Hoover. A new type cloth bag with an opening on the top for simplified removal of the dirt. A more powerful, smooth-running ball-bearing motor. An improved fan. An automatic friction-stop handle control. Non-rusting, Nitralloy beater bars. It is also newly beautiful in line and finish.'
Manufactured: Hamilton, Ontario, Canada
Motor: Single-speed, air-cooled, 290w Hoover-made unit
Bag: Slide-top, black Ronac
Chassis: Highly-polished die-cast aluminium
Handle: Metal with rubber grip
Brush-roll: Patented Hoover 'Agitator'
Sold Alongside: Models 575, 972, Dustette 100, Minor 200
Price: ?
Info:
When designing Model 725, Hoover engineers studied previous Model 700 and identified areas to improve on to enhance performance, efficiency and ease of use. They looked at several key features:
Motor: This gained an extra 100w of power, and an internal cooling fan to ensure it didn’t overheat
Impeller: Extra blades were added to move more air. Together with the extra motor power, this made Model 725 25% more efficient than Model 700
Bag: Held shut with a removable metal slider, the top could be opened out, so bulky fluff could be removed more easily
Bag suspension: The ‘spreader-top’ design was replaced by a canvas strap attached to a spring mechanism inside the handle. It provided exactly the right amount of tension; not so much that the bag was under unnecessary stress, but enough to ensure the bag never dragged on the ground, even with the handle fully reclined
Handle mechanism: The foot-lever was replaced by a sprung ‘friction stop’ mechanism. This kept the handle securely upright for storage, but reclined effortlessly for use
Appearance: The motor was decorated with an orange band. The bag was patterned with an attractive Art Deco motif

Manufactured: Perivale, Greenford, Middlesex, London
Motor: 2-speed, 290w, air-cooled, Hoover-made unit
Bag: Slide-top, black Ronac
Chassis: Highly-polished aluminium
Handle: Metal with rubber grip
Brush-roll: Patented Hoover ‘Agitator’
Sold alongside: Models 425, 900, Dustette 100, Minor 200
Price: ?
Info:
Model 750 was the first cleaner to be built at the newly-completed flagship Perivale factory in West London. Aesthetically and mechanically, the 750 was similar to Model 725. However, it did introduce one useful new feature – a 2-speed motor. The higher speed was intended for regular cleaning, whilst the lower speed was for vacuuming light rugs, and for limiting noise when quiet operation was desired.

The American version of Model 750 also introduced another significant ‘first’; it was the first vacuum cleaner ever to be fitted with a headlight. Prompted by a suggestion they received from a customer, Hoover engineers set about trying to incorporate a headlight onto the front of their machine. It wasn’t practical to use a 120v bulb, because it would burn out too quickly. They soon realised they could use the field coils of the motor as a step-down transformer for a 25w bulb. The ‘Hoover Hedlite’ was useful when cleaning under furniture, and along dark corridors. It inspired the slogan, ‘It shows you the dirt you never knew you had!’

Click here to view the cover of the instruction manual for Model 750
Click here to view an advertising booklet for Model 750
Click here to view another advertising booklet for Model 750