Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1982-12-08
1984-10-30
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15307, 15331, A47L 538
Patent
active
044792824
ABSTRACT:
A cleaning trolley comprising a stand movable on wheels, provided with a table and a vibrating suction box arranged therein, said suction box having a regulating block for regulating the operating length of the suction box, and said stand also carrying a vacuum cleaning unit with a lid-closed container for collecting dust and scrap particles and a suction assembly. According to the invention the lid is provided with a disc-shaped switching means for the suction path, which is pivotably journalled about a vertical axis and which has two openings spaced at a predetermined distance from each other and equidistant from the axis, for alignment with the inlet of the lid, one of the openings being connected to the suction box via a suction tube and the other opening being connected to a freely movable suction tube, the openings and suction tubes forming two section paths for arbitrary connection by turning the suction-path disc-switch to a position aligning one of the openings with the inlet of the lid. Further, said regulating block has a flexible tongue formed by a vertical recess, the hole-part of the through-hole in the tongue having its central axis located at an angle to the central axis of the rest of the hole-part and the hole-part of the tongue being arranged to be aligned axially with the rest of the hole to enable displacement of the regulating block along the guide member, the tongue being locked to the guide member by means of its inherent spring force. A means is arranged on the vacuum cleaning unit opposite the outlet, to further clean the air flowing out and to distribute the air flow to the sides and obliquely forwards in that the means includes a holder open on all sides, and a porous body exchangably arranged therein to clean and distribute the air.
REFERENCES:
patent: 2625703 (1953-01-01), Devau
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