A water-powered brush having a rotatable wheel powered by a water jet connected to an external source of water under pressure. The wheel rotates the outer end of a shaft positively connected to a ring gear about a brush that is rotatably mounted to the enclosure of the apparatus about an axis parallel to the wheel axis. Exhausted water from the enclosure is delivered through the center of the rotating brush.

A knife head, particularly for multi-edge lathes having knives held in plates and braceable in their operating position, which plates are adjustable, in order to obtain a radial adjustability of the knives, by means of an eccentric tool which is insertable in a bore in the knife head. There is coordinated to the eccentric tool-insertion bore which is directed onto the rear surface of the plate, a recess laterally offset thereto which is formed in the rear wall of the plate for the insertion ther...

A rotary-brush device comprising a downwardly open flat housing closed at its bottom by a cover threaded into this housing and defining a chamber in which a disk having edge-fixed vanes is received. The disk is propelled by a water jet trained on the vanes from a nipple formed on the housing and directed to the flat chamber receiving the disk. The disk is connected to a hollow shaft which rides in a recess formed in the top of this housing and in a bore of the cover, a threaded lower end of the ...

A cutter head assembly is described as including blade-receiving slots of a particular design and geometry to receive different types of cutting blades having cutting face portions which do not require resharpening. The cutter head assembly provides for positioning of such different types of cutting blades so that a negative hook position is avoided for any blade designed within a range of selected parameters for use in the assembly. This assembly provides for radial adjustment of blade position...

A hand-held motorized household cleaning apparatus that includes a housing, a battery located in the housing, a motor located in the housing and connected to the battery, an output drive shaft connected to the motor, a cleaning attachment coupled for movement with the output drive shaft and a liquid delivery system with a pressurized reservoir. A flexible adapter is also provided.

Holographic three dimensional images of objects can be displayed via a device comprising micro holographic optical elements (MHOEs). A device for displaying holographic three dimensional images of objects can comprise a laser source, a spatial filter using a micro holographic optical element (MHOE) lens, a collimating MHOE lens, a spatial light modulator, and cylindrical MHOE lenses. A holographic three dimensional image of an object can be displayed using MHOEs by emitting a coherent light, fil...

A multiple indexable insert milling cutter of extremely simple precise construction providing unusual economy of manufacture. The tool includes a circumferential groove having a pair of angularly related insert locating surfaces and a back up or seat for each insert comprising a simple flat plate positioned in a slot transverse to the groove. The seating face of the plate positions a positive rake insert and a negative radial rake angle sufficient to provide flank as distinguished from insert cu...

A cutter head assembly for gear cutting machines is described as including an arrangement of blade-receiving slots set at specific angles to a longitudinal axis of the assembly so as to permit removal, resharpening, and replacement of different types of blades into such slots. The blades which are used with the cutter head assembly of this invention are of a type which can be resharpened without removing stock from their cutting faces.

The invention pertains to the field of cutting tools having indexable replaceable cutting inserts and comprises novel means for locating and locking the individual inserts in place with assurance that the inserts are accurately positioned and firmly held with particular advantage in simplicity and economy of construction. The locking means comprise fastening means engaging the tool body and engaging an extended slidable insert bottom seat anvil such that upon actuation the bottom seat anvil is d...

A scrubbing device for facilitating scrubbing of a surface. The scrubbing device includes a base member being designed for being gripped by a hand of a user. A brush member is rotatably coupled to the base member. The brush member is designed for engaging a surface whereby the brush member is for scrubbing the surface. A motor assembly is positioned in the base member. The motor assembly is operationally coupled to the brush member whereby the motor assembly is for rotating the brush member with...