MOTOR-DRIVEN SWEEPING MACHINE

• Main Authors: WALTER GUTBROD, WOLFGANG GUTBROD
• Format: Patent
• Language: English
• Published: 28.06.1972
• Subjects: COFFEE MILLS; DOMESTIC ARTICLES OR APPLIANCES; DOMESTIC WASHING OR CLEANING; FURNITURE; HUMAN NECESSITIES; SPICE MILLS; SUCTION CLEANERS IN GENERAL

1279568 Floor cleaning machines W GUTBROD and W GUTBROD 12 June 1970 [12 Jan 1970] 28525/70 Heading A4F [Also in Division E1 and F2] A self propelled motor driven sweeping machine has a sweeping mechanism of which a drive-shaft drives gearing for changing the speed and the direction of travel of the machine said gearing including a multiple disc clutch disposed in an oil bath. In a machine for cleaning factory floors, &c., having main and auxiliary brushes 9, 10, Fig.1 (not shown) rotatable about horizontal and vertical axes, respectively, the brushes are driven via pulleys 20, 21 on a hollow shaft 19 driven by an I. C. engine via a worm wheel 18. When a multiple disc clutch 42 is moved to the left it couples a double pinion 31, 32 with a hollow shaft 34 driving via a differential gear 35, the chain mechanism (not shown) driving the supporting wheels of the machine. The machine is then driven forwardly at either of two speeds depending upon whether the pinion 31 or the pinion 32 is engaged with a sliding gear wheel 28 or 29 of a change speed gear driven from the shaft 19 via pinions 22, 23, 24. On moving the clutch 42 to the right it couples the pinion 22 directly to the hollow shaft 34 and the supporting wheels are driven in reverse. In an intermediate position of the clutch 42 the vehicle remains stationary whilst the brushes may be driven.