A register for regulating the flow of air toward an inner combustion region has a plurality of spaced and inwardly directed vanes affixed between two annular members. A plurality of spaced guide means peripherally disposed around the vanes, are mounted across the two annular members. A sleeve which is linearly movable upon the guide means enshrouds the vanes by a variable amount. By moving the sleeve, the inward flow of air past the vanes can be regulated.

Disclosed is a register having pivotally mounted louvers with beveled edges. The louvers are mounted within the register frame in parallel relationship, the beveled edges adapted to mate with adjacent louvers to provide a continuous coplanar surface for blocking the register. The louvers are mutually interconnected with a control device for rotating the louvers in unison.

A register includes a retainer, and a fin assembly. The retainer has an outlet opening. The fin assembly includes a plurality of fin members. The fin members are disposed in the retainer in a manner neighboring one after another. One of the neighboring paired fin members has a first end. The other one of the neighboring paired fin members has a second end facing the first end when the fin members swing to the close position. The register further includes an air deflector disposed between the fir...

A register cover for a register opening in a floor includes a body with a pair of legs extending from and pivoted to the body. Each of the legs may pivot between extended and retracted positions. The legs are adapted to be inserted into the register opening when the legs are in the retracted position. Another register cover is wrapped around a rigid register vent to protect the vent during construction.

The invention relates to a data register with a register card selection mechanism, whose selector keys connected with the swivel levers are arranged one behind the other and alongside one another in an opening of the housing in such a way that the width of each selector key corresponds to the width of the swivel levers, while the card restraining pins on each swivel lever are formed from U-shaped portions shaped onto the swivel lever end with a rod which engages from below in the register card o...

A register assembly includes a register louver defining a generally circular air passage in which air directing vanes are mounted. The register louver has a central hub in which a shaft is rotatably mounted. A plurality of closure segments are mounted for rotation relative to each other about the shaft axis. Each of the segments is capable of closing a portion of the circular air passage in the louver. In a first position, the closure segments are serially aligned and substantially overlapping e...

There is provided a register apparatus. The register apparatus includes a key input device for successively entering commodity prices and the amount of money received from a customer by a keying operation; a note identifying device for identifying the denomination of the note received from the customer; an arithmetic control device adapted to add said commodity prices and to calculate the sum of said amount of money entered through said key input device and the amount of money identified by said...

The invention relates to a data register with a register card selection mechanism, whose selector keys connected with the swivel levers are arranged one behind the other and alongside one another in an opening of the housing in such a way that the width of each selector key corresponds to the width of the swivel levers, while the card restraining pins on each swivel lever are formed from U-shaped portions shaped onto the swivel lever end with a rod which engages from below in the register card o...

A universal register which consists of a plurality of identical emitter coupled logic (ECL) bit slices and auxiliary ECL gates adapted for fabrication on a single large scale integration (LSI) chip. Each bit slice is comprised of a master-slave flip-flop (a master latch circuit and a slave latch circuit) and an output control network which is driven by the flip-flop. Each of the latch circuits and the output control network comprises a single stage (unit propagation delay), two decision level ca...

An electronic cash register having a limited internal storage memory for storing a predetermined number of classification codes is provided. The cash register includes an input circuit adapted to produce classification code signals representative of a plurality of classification codes in excess of the predetermined number of classification codes storable in the memory. A conversion circuit adapted to receive the classification code signals and selectively apply certain of the classification code...