Process for purifying crude ethanol, whether produced by fermentation or by the synthetic route, to produce a pure ethanol-water azeotrope. The process uses only two distillation columns for fermentation ethanol and only three columns for synthetic ethanol because the latter has diethyl ether as impurity. The inventive concept lies in the design and specification of the columns and the specific di...

PURPOSE:To prevent an engine stall occurring when a clutch gear is shifted by enabling the shifting action of a sub speed change transmission for travelling without interruption of a cultivating rotor. CONSTITUTION:Both a high speed transmission gear 11 and a low speed transmission gear 12 are mounted on the output shaft 10 of a travelling main speed change transmission 7 in such a way that said g...

PURPOSE:To operate engine brake effect automatically in a continuously variable transmission gear as necessary by automatically shifting down the continuously variable transmission gear, linking to stepping on a brake pedal. CONSTITUTION:When a vehicle is accelerated or runs at a constant speed with an open brake, a lift of a brake cam 61 is minimal and the cam 61 and the roller 60 of operating me...

The invention relates to an X-ray tomograph in which the X-ray tube can perform movements which are independent of each other in two directions at right angles to each other. The X-ray tube in a first support can be moved in the transverse direction which is connected to a second support extending in the longitudinal direction which in its main direction is journalled so as to be movable in a stan...

A positive electrode 10 for a lead acid electric storage cell 24 is made by chemically preparing beta lead dioxide. The beta lead dioxide is then applied to a support structure 14 with a binder, or poured into a permeable, tubular container located about a current collecting rod. The negative electrode 26 can be made by compacting fine lead metal 30 about a carrier 32, and the fine lead metal migh...

An extruded plastics foam compositions comprising 2 to 7 weight percent rubber, 0.3 to 10 weight percent nucleator, 0.1 to 1.5 weight percent lubricant, 10 to 19 weight percent blowing agent, and the remainder being at least one thermoplastic resin, which is a crystalline or amorphous polymer.

A cladding process is disclosed wherein hard carbide cutter inserts (142), as well as polycrystalline diamond composites (131), are metallurgically bonded into an interior core of a drag bit body (112). The cladding (134) is bonded onto the exterior surface of the core of the drag bit by a powder metallurgy process. A thin layer or coating (143) of a suitable metal, preferably nickel, is provided ...

In order to improve the sensitivity and the spectral resolution in measuring the luminescence of diverse sample materials, adapted optical imaging relationships at variable excitation output are provided for the different optical paths of the luminescence light emitted by the sample material. An excitation bundle of rays which can be stopped down and the central beam of the secondary beam which em...

The housing of web sectioning apparatus having a rotary knife assembly and a rotary cutting drum is provided with a pair of bearing surfaces. A frame is pivotally mounted on these bearing surfaces, and the rotary knife assembly is rotatably mounted to the frame eccentrically of the pivot axis between the frame and the housing. Thus, by pivoting the frame relative to the housing, the axis of rotati...

Low adherency wound dressings which comprise a wound facing layer, an intermediate absorbent layer and an outer layer characterised in that the wound facing layer comprises a conformable elastomeric apertured film, the intermediate absorbent layer comprises a conformable hydrophilic foam and the outer layer comprises a continuous moisture vapour transmitting conformable film; materials therefor an...

1. Method for filling tubular electrodes of lead accumulators, in which a paste-like active material is pressed into little woven tubes which are slipped on filling tubes and can be pulled off them under the filling pressure depending on the filling advance, characterized in that the active material, after passing a pression chamber, is fed to the filling tubes in an excess amount and the filling ...

A continuous flow device for separation of particles of differing densities in a centrifugal force field. Very small particles of differing densities that are normally very difficult or impossible to separate in the useful commercial gravity separation devices can be separated because of the increased settling force due to the centrifugal force field and also the buoyant force on the particles of ...

Methods and compositions are provided for preparing polyhydroxylated polyiodo non-ionic contrast media. Particularly, substituted polyiodobenzamides are prepared, wherein the benzamide nitrogen is polyhydroxylated by allylic substitution on the nitrogen and oxidation of the olefinic group to provide for polyhydroxyl substitution. Amino substituents on the benzamide may be polyhydroxylated by allyl...

An appliance for the dissolution of medicaments in the form of dry matters and the absorption of the dissolved medicament into a hypodermic syringe with a subsequent emptying the syringe of air. The appliance consists of a hemispherical, transparent top section (1) with a cylindrical neck (2) in which a self-sealing rubber stopper (6) is seated and which has a circular collar or flange (8) for an ...

PURPOSE:To secure the safety when the hardware of a system is at fault by detecting the abnormality of a watchdog circuit by a microcomputer, and outputting its fact to the outside of the system. CONSTITUTION:A watchdog timer circuit 7 is connected to a microprocessor 2 of a microcomputer 1 of a microcomputer system through an interface 5, an outputting circuit 6 and an OR gate 13. Also, the secon...

There is disclosed a needle assembly comprising a needle, a needle-retaining portion, a removable needle protector portion, and a resilient member for removing liquid from the surface of the needle which is disposed around the needle rearward of its point. The liquid removing member has a needle-accommodating opening with a diameter approximately that of the outside diameter of the needle. The mem...

A holder for carrying personal items of value, i.e. wallet, passport, credit cards, jewellery, cash or any personal valuables, is in the form of flexible pouch and shoulder strap attachment. The shoulder strap attaches the said pouch to the wearer, leaving the hands free.

A hydrogen sulphide monitor for unattended use in sewers has a turntable 1 carrying a lead acetate indicator paper 2 covered by disc 3 with 48 holes 3a. The turntable is driven at one rotation per day by clockwork 10. The non-rotating casing of the clockwork 10 has a plate 4 with a hole 4a which registers with each hole 3a in turn, so that the indicator paper 2, by its darkening at each hole 3a, f...

An automatic asparagus picking machine is disclosed comprising a chassis movable along a mound in which the asparagus are grown. The chassis has a picking tool which is mounted for horizontal and vertical translation at right angles to the direction of displacement of the chassis. The tops of the asparagus are back lit by a lighting system on one side of the mound and their images are picked up by...