A daisy wheel type printing device comprises a daisy printing wheel including a plurality of type holding members having type at the respective ends thereof, wheel driving motor for rotating the daisy printing wheel to set the type designated by input character data to a printing position, a printing hammer for hitting the type set to the printing position, and a control circuit for driving the printing hammer when a preset a period of time has elapsed after the type designated by the input char...

A disposable sanding device which is fabricated from a block of lightweight, resilient material capable of substantially retaining its shape under applied sanding pressure, has a relatively permanent abrasive surface provided on the faces of the block. Preferably, the abrasive surface on the block faces consist of an abrasive coating which has a built-up in the corner areas of the block to extend the life of the corner sanding surfaces. The block can be provided with an abrasive coated surface s...

Abrasive belts suitable for offhand and automated article finishing provide a uniform finish without lapping or parting lines. The belts comprise a lofty non-woven web securely needle tacked to a woven backing and impregnated with resin and abrasive.

The present invention is a method and apparatus for managing memory in goal processing. The present invention creates search states that contain an alternative subgoal (i.e., subgoal with alternatives) and non-alternative subgoals. Problem state modifications associated with the goals contained in a search state are associated with a search state object. A search state object contains information about the search process and the goals included in the search state, and a pointer to previous searc...

An apparatus and method for wafering an ingot of semiconductor material. Wafering blades are fabricated from one or more layers of a fiber reinforced plastic tape and coated with an abrasive material which is embedded into the exposed flat surfaces of the blades. An assembly of such blades is used in a wafering device in which the blades are reciprocated while the ingot is plunged against the cutting edges of the blades. The primary cutting action occurs as exposed ends of the fiber material at ...

A vibratory conveyor and abrader has a vibrated feed path covered with a pile material having resilient bristles inclined toward the direction of feed to move objects along. The pile material includes bristles having particles of an abrasive material extending to the tips of the bristles, and the device is arranged for urging the objects into abrasive engagement with the abrasive bristles as the objects move in the direction of feed for evenly abrading the objects as they proceed. This is done b...

The present invention provides a method and apparatus for creating computer-based postage that may be used on any date and with an undetermined addressee includes generating a request to print postage, determining the means for generating the request, determining the master serial number for label stock, tracking the master serial number and printing the postage.The present invention provides for the creation of computer-based postage that may be used in a manner similar to standard postage issu...

Cutting filaments having a long service life consist of a monofilament of a synthetic polymer into which from 0.3 to 10 percent by weight of an abrasive are incorporated. In the cutting process the abrasive is not ripped off, as it does happen with steel wires bearing the abrasive on their surface, but it is pressed into the monofilament and can be easily recovered therefrom.

A marginal floor brush spacedly surrounding the rim of a chambered sanding machine base. The brush meets the floor and confines wood dust developed by a rotary sanding unit in the base. The dust is drawn from under the brush by a vacuum unit in the machine. This is facilitated by disposing the brush floatingly free of the machine to stir up and separate the dust particles and leave the floor clear of dust as the machine moves on.

Delamination-resistant abrasive belts and discs suitable for offhand and automated article finishing comprise a lofty, non-woven, three-dimensional abrasive web adhesively bonded to a stretch-resistant woven fabric with a polyurethane binder comprising the reaction product of poly-1,4 oxybutylene) glycol diisocyanate having a molecular weight of about 500-4000 and a reactive compound capable of reacting with the isocyanate radicals. The reactive compound is selected from a group consisting of wa...