THE CARPET RENOVATOR.
Four Important Parts of Vacuum Cleaning System 25
The Straight Vacuum Tool 26
Renovator with Auxiliary Slot Open to Atmosphere 27
Renovator with Two Cleaning Slots 30
Renovator with Inrush Slots on Each Side 30
Tests on Dirty Carpets 30
Type A Renovator Most Efficient on Dirty Carpets 36
Tests of Carpets “Artificially” Soiled 36
Effort Necessary to Operate Various Type of Renovators 51
Relative Damage to Carpets with Various Type of Renovators 52