PURPOSE:To make it possible to weld materials to be welded by efficiently transmit supersonic wave energy to said materials by a method wherein liquid is fed in a tapered cover equipped at one surface of a supersonic oscillator and at same time supersonic waves are emitted together with the liquid from the fine hole at the tip of the cover opposing to the materials to be welded. CONSTITUTION:First...

A ships' engine system having a diesel motor which drives the propeller shaft by way of a gear unit and runs at medium high speed, characterised in that the propeller shaft (4) is guided through underneath the motor (1) and the reducing gear unit (5) is arranged on the side of the motor remote from the propeller (2).

PURPOSE:To easily carry out the measurement of band-like material moving at a high speed accurately at a low cost by measuring the level difference quantity of joint by the difference in light shielding quantities by the use of two optical photo-sensors. CONSTITUTION:The front and rear portions of the joint portion X of a band-like material W which is conveyed at a defined speed by means of a conv...

The biopsy table (21) includes a platform (22), on which the patient lies in a prone position with the breasts passing through an aperture (37). An image receptor (36) is mounted on a C-arm (27) and can be rotated about an axis (29) able to be positioned between the patient`s breasts or against the underside of a breast. A tube-head (28) which delivers X-rays to the patient is positioned at the pa...

A flotation machine comprises a cylindrical chamber having a tapered bottom to which there are secured a pipe for feeding a flotation pulp containing mineral particles of fine fraction, and a pipe for discharging gangue. Secured at the walls of the chamber is a trough for collecting froth concentrate and a group of pulp aerators, whereas arranged axially inside the chamber is a group of tapered sh...

A shredding machine which comprises a pair of juxtaposed cutting rollers for shredding paper material, a paper feed tray movable between lowered and elevated positions and adapted to support thereon the paper material to be shredded, a feed roller assembly for feeding the paper material from the paper feed tray towards the cutting rollers, a protective cover supported for movement between closed a...

PCT No. PCT/GB92/01719 Sec. 371 Date Jun. 10, 1994 Sec. 102(e) Date Jun. 10, 1994 PCT Filed Sep. 18, 1992 PCT Pub. No. WO93/06045 PCT Pub. Date Apr. 1, 1993A method of reducing the concentration of at least one organic compound present in an aqueous feedstock, wherein said feedstock is supplied to one side of a substantially water-insoluble selectively permeable polymeric sheet or tubular membrane...

In Einrichtungen zur Vereinigung eines Restbogenstapels (1) und eines Hauptbogenstapels (2) zu einem Gesamtstapel werden aus Gitterstäben (3) mit spitz auslaufenden Enden gebildete Rechen (8) verwendet, welche den Restbogenstapel (1) vorübergehend unterfangen, und gegen deren Unterseite die Oberseite des Hauptbogenstapels (2) vorübergehend angestellt ist. Erfindungsgemäß sind derart ausgebildete A...

A dental floss holder is in the form of a box (20) with a drawer (22) in it. The bottom of the drawer includes a hub (38) which is spring biased to push a bobbin (24) mounted thereon toward an opposite side of the box. The bias is such that the bobbin drags with a predetermined force on an opposite side of the box to maintain tension in the floss. A result is that the bobbin does not unwind while ...

The utility model relates to a vacuum tube solar energy heat collector for four seasons, mainly composed of a heat collector and a water storage tank, wherein, a glass vacuum tube is arranged in the heat collector via two perforated partition plates; a u-shaped tube and a cylindric fin are arranged in the vacuum pipe; every two adjacent U-shaped tubes are connected in series into a U-shaped tube; ...

The utility model discloses a lead-acid accumulator with transparent window for motor-driven vehicle, which is composed of a casing (3) of the accumulator, a charging hole cover (1), a plate group (4), a partition (5) of a groove of the accumulator, a coupling head (2) and a connector lug (6). The utility model is characterized in that the points of the upper side part of the casing (3) of the acc...

The invention pertains to a water blown integral skin polyurethane foam having a skin with good abrasion resistance. The foam is manufactured by employing as a polyol composition a polyol having a functionality of from 1.75 to 2.65 and a molecular weight of from 1500 to 5000 along with a surfactant and water as a blowing agent. The particular surfactant is a particular siloxane or an ethylene oxid...

It has been found that 1,1,1,2-tetrafluoroethane (HFC-134a) may be used as blowing agent alone or in conjunction with water in the formation of flexible integral-skin foams from organic isocyanates and isocyanate-reactive polyols having a functionality of at least 1.5 together with catalysts, chain extenders and further optional ingredients. Foams prepared using HFC-134a alone or in conjunction wi...

Polyurethane/polyisocyanurate rigid foams with low K-factors and enhanced flame-retardant properties as measured by the Butler Chimney test are produced from an organic polyisocyanate and a polyol at an isocyanate index of 90 to 500 in the presence of a blowing agent composition comprising pentane and a fully halogenated brominated halocarbon in a mole ratio of from 10:1 to 1:2. The polyurethane p...

It was found that a combination of thermoplastic microspheres containing a volatile hydrocarbon and water could be used as effective co-blowing/density reducing agents in low density, integral skin polyurethane foams.

It has been found that in addition to acting as an auxiliary blowing agent, various salts of formic acid may be used to tailor the reactivity characteristics of rigid, polyurethane foam formulation. Salts of particular interest are: ammonium formate, sodium formate, and potassium formate. By varying amounts and combinations of the above salts, characteristics of a formulation's reactivity such as ...

An apparatus and method for supplying a graphic label that is readable with a light scanning device with such label placed on a rubber article. The graphic bar code label is optically interpreted with a bar code reader. Thus, the cured substrate with the label with the graphic message is produced by using thermal transfer techniques. For this purpose, the ribbon in contact with the substrate passe...

Die neue Einrichtung zur Druckentwässerung von Schlamm enthält einen langgestreckten Druckbehälter, der mit mindestens einer achsparallel ausgerichteten Filterkerze bestückt ist. Die Wand des Druckbehälters ist mit einer nach außen durchströmten Filtertrommel belegt. Der Austrag des entwässerten Schlamms liegt der Zuführung gegenüber, so daß der Schlamm unter stetig zunehmender Entwässerung entlan...

The invention provides a method and apparatus for placing a bead 2 on an annular band 1 and folding an edge portion la of the band 1 over the bead 2. The method comprises (a) positioning the band 1 on a forming drum 11, so that at least one of the edge portions 1a of the band 1 projects axially therefrom, (b) radially expanding the forming drum 11, (c) positioning the bead 2 around the outer surfa...