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Page 87
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tanks and an adjustable wringer for squeezing out mops.
Probably the widest range of equipment for cleaning floors in this country is that marketed by Progress Floor Treatments Ltd., High Wycombe, Bucks. This includes mops and brushes as well as the Step-on-it mop bucket which is similar in operation to the Clean-Aid unit.
The more important parts of the Progress floor maintenance equipment are floor cleaners and sweepers. In the former category there are two machines suitable for scrubbing concrete in addition to other uses on other types of floor. The Universal is the smaller machine, although both are similar in design; the President is in effect a heavy-duty version with a greater working capacity.
The main body of these machines carries an 0.75 h.p. electric motor; underneath it there is the operating head which is mounted eccentrically to give an oscillating action. As well as a brush head the machines can be fitted with scrubbing brushes in three grades of nylon, wire brushes or scarifying and scouring brushes. The main difference between the machines is that the Universal has a diameter of 1 ft. 2 in.. whilst the President has a diameter of 1 ft. 4 in. As a result the capacity of the Universal is 6,000 sq. ft. per hour For suction polishing and sweeping and 4,000 8q. ft. per hour for scrubbing. Comparable figures for the President are 9,000 and 6,000 sq. ft. per hour respectively.
In both cases the machine is controlled by a handle hinged to the operating body and on the handle there is a stalk housing the control switch. Twin wheels fitted on a downward extension of the handle allow the body of the machine to be raised from the ground for easy transportation.
Although the two Progress floor cleaning machines can be used on slightly rough and uneven surfaces there is a limit to the sort of job they can tackle and, where a floor is very uneven and the deposits are heavy, more violent methods will be called for.
As an example of what may be necessary, Wickham Industrial Equipment Ltd., Old Broad St., London EC2 supplies a special jet combined with a wire brush as an accessory to its steam cleaners for cleaning floors. Detergent is injected into the steam and it is said that with this method the heaviest grease and dirt deposits can be removed from floors.