Abstract: A vacuum waste removal system including a waste receiving container including a tank having an intake conduit, a dome carrying an air knife and having an outlet conduit and a filter screen removably located between an upper end of the tank and a lower end of the dome. The improvement is directed to a lift and lock arrangement interconnecting the dome with the tank. The arrangement includes a horizontal arm extending from one edge of the dome and tank to substantially the vertical axis of the container. A jack is connected with the first end of the arm while the second end connects with the dome and air knife. A conduit supplying air to the air knife passes through the connector connecting the dome with the end of the arm. The arrangement allows the dome, the conduit, and the air knife to be moved upward away from the tank a distance sufficient to allow removal and replacement of the filter.

Abstract: In a vacuum cleaning system in which the top dome and receiving shell are separated by a screen, a screen cleaning system comprising an air knife having a coanda profile rotatably arranged in the dome adjacent the screen. The vacuum cleaning system is selectively actuated in accordance with a timed program to clean lint and debris from the screen.

Abstract: A vacuum cleaning arrangement having a collecting tank in which a jack system is arranged about its periphery which is operative to lift and separate an upper portion of the tank from a lower portion of the tank and also to move the upper and lower portions into contact under pressure. A filter screen is positioned between the upper and lower portions. The filter screen comprises a screen formed of metal wires and a perforated metal plate. A U-shaped resilient seal or gasket is secured about the outer surface of the plate. The arrangement provides that when the upper portion is drawn into contact with the lower portion, the portions engage the gasket with sufficient pressure to form an air-tight seal therebetween.

Abstract: A vacuum cleaning system is disclosed for cleaning the automatic insertion area of a loom. In a typical weaving operation, there are a number of successive rows of individual looms (11). In accordance with the present invention, there is a main vacuum line (28) routed transverse to the rows of looms and secondary vacuum lines (26) extending along the rows of looms. Electropneumatic valves (29) are provided to selectively connect and disconnect the individual secondary lines so that an intermittent vacuum may be placed on the looms of successive rows in a cyclic manner. The vacuum cleaning system includes a vacuum manifold (46) connected by a branch line (40) to a secondary vacuum line (26). A balancing valve (42) is included in each branch line (40) to balance the vacuum at each loom so that generally equal vacuum is applied to the looms along the row. A number of individual, directional lines (A, 72, 74, 76, ) are connected to manifold (46).