Equipment is disclosed that conveniently provides effective cleaning of envelope-folding, paper-converting or similar machinery containing perforated cylinders having a hollow interior and communicating with a vacuum system, for the manipulation or conveyance of one or more pieces of substantially imperforate sheet-like materials held against the exterior of the cylinders by ordinary atmospheric pressure. Equipment is provided comprising a reservoir chamber, pump means for forcing liquid from th...

Apparatus for stripping a copy sheet electrostatically supporting a toner image from an oppositely charged xerographic surface. The apparatus includes an electrically biased roller slightly spaced from the copy sheet in the stripping zone to effect the stripping. Contact between the roller and copy sheet neutralizes the sheet. Alternately, the neutralization may be effected by a corona discharge device.

Dirt particles are cleaned from a web of flexible material, such as photographic film or paper, by applying ultrasonic vibrations to a web in a direction transversely of the web while applying a solvent liquid to the web. The liquid can be applied by immersion of the web and ultrasonically vibrating apparatus in a pool, or by spraying the liquid onto the web as it passes over the apparatus in air. Vibrations are imparted by passing the web between a pair of shoulders defining a circular channel ...

A tubular housing receives the pipe of a standard beer keg tap or pump. Water is forced, under pressure, through the tubular housing, pipe and pump in order to clean it out.

Mobile cleaning apparatus including a roller supported frame carrying a container for holding a supply of cleaning liquid, a sprayer head connected to a length of flexible tubing for spraying a cleaning liquid entrained in a stream of water, a venturi unit having a main water flow passageway and a cleaning liquid inlet, a water flow control valve connected across the passageway of the venturi unit, and a pair of pressure regulating valves connected in parallel between the outlet of the pump and ...

A pair of cylindrical wire brushes are mounted one above the other and arranged for simultaneous rotation and axial reciprocation in opposition to each other. The brushes are carried by respective, generally L-shaped arms which are supported on a common vertical pivot. The generally axial reciprocation is achieved by rotational oscillation of the supporting arms.

A drum of polygonal cross-section has a hollow spindle secured to each side thereof. The spindles support the drum for rotation thereof about the axes of the spindles and provide means for loading and unloading workpieces to and from the drum. The drum is provided with perforations so that, when it dips into a treatment medium in a tank, workpieces within the drum are exposed to the medium. The drum is oscillated during treatment of the workpieces and is rotated through 360.degree. to effect dis...

A washing machine for washing reuseable cases, containers and the like includes loading platform for automatically receiving the containers and transferring the containers into an enclosed washing area which includes jets for washing the containers. The machine also includes a rinsing area which is seperated from the washing area by a partition and a reversing platform for transferring the containers from the washing area to a rinsing area so the containers may there be rinsed. The machine furth...

Two parallel-spaced sheets having complementarily flanged peripheral portions forming edge intake structure and an air pump for exhausting the space between the sheets comprise an open-air fume barrier for disposition broadside between two points to isolate the points ventilatively to the extent necessary, as in preventing gasoline fumes from reaching an open flame but at the same time avoiding as much as possible any disturbance of the air at either of the points; both a specially shaped uprigh...

An integral chemical cleaning apparatus for supplying and recirculating compositions used in the process of removing scale, rust, grease and dirt coatings from internal metallic surfaces of closed industrial equipment where the stages of pickling, passivating and flushing are performed consecutively without change-over to separate devices for each of such stages of the process. The apparatus comprises a circulating pump forcing fluids from a supply source to valve means capable of directing flow...