In a method for converting n data input bits to n data output bits, groups of m data input bits from an input data buffer (10) are used as address input for a plurality of identical substitution look-up tables (20 to 27). Each look-up table (20 to 27) has a plurality of groups of m data output bits stored at a plurality of locations in the table. The output bits held at each location within the look-up tables (20 to 27) are dependent on a control word taken from a control word register (11).

A camping conversion for motor vehicles having an open interior compartment. The conversion includes a floor panel supported by tracks and retractable beneath the vehicle floor, and an auxiliary pop-out compartment which protrudes from the side of the vehicle and is retractable into the vehicle interior. In the extended position, the auxiliary pop-out compartment rests on the extended floor panel. The auxiliary pop-out compartment has telescoping sidwalls which overlap one another when retracted...

A method for converting the frequency of an electrical signal, where an input signal is received, a first local signal and a second local signal of a different phase than the first local signal, are generated. A first product signal is obtained by mixing said input signal with the first local signal and a second product signal is obtained by mixing said input signal with the second local signal. The first and second product signals are combined together. The mixing of the input signal with the f...

An apparatus is provided for enabling the enlargement of the cabin for a vehicle having an enclosed cabin and a cargo bed extending rearwardly from the cabin. The apparatus includes a rear wall removably coupled to the cabin. A guide element is positioned along a floor of the cargo bed and a base portion of the rear wall is slideably coupled to the guide element, which enables the rear wall to be translated rearwardly from the cabin to vary a volume thereof.

A guitar conversion which utilizes, in part, a conventional guitar having a neck in which the fret board is essentially coplanar with the front surface sound box and on which is mounted a single piece conversion member presenting a face disposed in angular relation to the front surface of the sound box on which is placed an angular fret board such as a Hawaiian type; the conversion member having an extended end providing a guitar nut and merging onto the guitar head; the guitar also being provid...

This invention relates to a process for converting hydrocarbons in the presence of a catalyst comprising a crystalline aluminosilicate zeolite referred to as ZSM-5 type, which zeolite, as crystallized, is in the form of very small particles having diameters in the range of 0.005 micron to 0.1 micron. The use of such small crystallite ZSM-5 type zeolite as catalyst in hydrocarbon conversion has been found to retard catalyst aging during the hydrocarbon conversion reaction.

Chemical processing of normal-paraffin hydrocarbons may be carried out with increased selectivity by use of a normal-paraffin hydrocarbon reactant which is adsorbed on the surface of a solid adsorbent such as diatomaceous earth prior to treatment in a free-radial (eg photochemically) initiated reaction.

A conversion kit is provided for installation of rotary shaft seals in stuffing boxes that normally utilize packing secured in place by a packing follower bolted to the stuffing box. In a preferred embodiment, the kit accommodates stuffing boxes of different sizes by providing a shaft mating ring having a plurality of stepped surfaces on opposing radial faces, each adapted to fit a specific size of stuffing box, with the inner annular surfaces lapped flat, a stepped adaptor ring which can be rea...

Apparatus for measuring temperature or light intensity is disclosed. Potential pulses of variable frequency are impressed between the collector and emitter of a transistor whose base is open or floats electrically. The transistor is subjected to the condition being measured, the light to be measured impinging on the transistor while it is maintained at a constant temperature or the transistor being subjected to the temperature being measured while masked or while the light impinging thereon is m...

A process for converting hydrocarbons by a combination of fluid catalytic cracking and alkylation or aromatization of at least a part of the cracked product by contacting a hydrocarbon chargestock with a mixture of cracking catalyst and ZSM-5 type catalyst under cracking conditions; separating the mixture of cracking catalyst and ZSM-5 type catalyst from the cracked product; contacting at least a part of the cracked product with fresh ZSM-5 type catalyst under alkylation or aromatization conditi...