A physiotherapy device for treating spinal disorders comprises a body (6) housing actuating rams operating on pistons (14) which carry feet (15). The pistons (14) are caused to reciprocate so that while one diagonal pair is raised, the other will be lowered and vice versa. The device is applied so that the feet (15) rest on the lateral ends of transverse processes to either side of a pair of adjacent vertebrae. The reciprocating motion of the feet (15) then causes a counter-rotational movement b...

A method for treating muddy water which comprises adding a first chemical containing an alkali metal or alkaline earth metal oxide or hydroxide to muddy water to be treated, thereby rendering muddy water alkaline, adding a second chemical containing an anionic polymer coagulant to muddy water simultaneously with or after the addition of the chemical, further adding a third chemical containing a sulfate thereby rendering the muddy water weakly alkaline, and then adding a fourth chemical containin...

The present invention relates to a method and an arrangement for influencing the interaction between a layer of earth and a structure situated in association with the layer of earth. What is characteristic of the invention is that a casing filled with a medium and introduced into a layer of earth is introduced into a material surrounding the casing, which material preferably consists of a bentonite or a bentonite mixture.

A shoe having an upper portion and a sole-and-toe portion which portions are releasably joined together by a male/female track attachment device. The female track is attached to the upper and extends the entire length of the bottom portion of upper. The male track is attached to the sole and is embedded in the sole wall assembly. The bead of the male track is elevated above the sole wall in position to receive the female track. The male track begins at the toe, extends around the heel and termin...

A Rod Kicker: is disclosed for applying downhaul to a boom of a sailing rig. The rod kicker consists of two telescopically engaged elongate struts (4, 5). One end of one strut is secured to a mast (2) below the boom (3) and the remote end of the other strut (5) to the underside of the boom (3). A pulley system acts between the struts to enable the strut (5) to be retracted into the strut (4). A pawl and rack assembly locks the struts together to prevent the boom dropping when no lift is applied ...

The invention relates to an arrangement for accurately fitting together two elements (1,2) one of which is provided with a projection (8) and the other with a recess (4) adapted to receive the projection, one (1) of the elements being machined to exact dimensions, whereas the other (2) element is manufactured by extrusion or like process. The novelty of the invention resides in that the machined element (1) of a hard material is provided with portions (9-11) serving as cutting means, while the o...

Conventional optical amplifiers for the amplification of optical signals propagating in an optical waveguide use a first light source for the production of pump light, by means of which an active laser substance is excited to a first energy level above its upper laser level. According to the invention, a second light source is used to excite the active laser substance to a second energy level that is above the first energy level. By doing so, spontaneous emission between the laser levels of the ...

A parallel frame synchronization circuit converts an incoming serial bit stream containing frame synchronization information into parallel data words on arbitrary boundaries of fixed bit length. Detectors forming part of the present invention determine from the parallel converted data the presence of synchronization information so as to align the incoming serial data into parallel data aligned on frame boundaries by manipulating parallel words. The present invention is particularly suited for fa...

A support system for a guiding catheter used in coronary treatment such as percutaneous transluminum coronary angioplasty (PTCA) includes a main lumen, a secondary lumen and a linearly incompressible flexible elongate element slidable within the secondary lumen. The main and secondary lumen are connected integrally together throughout the proximal portion of the length of the catheter but are separated throughout a distal portion, the elongate element, which may be a wire or metal strip, being a...

In a method of recovering phosphor for picture tubes from phosphor sludge, the phosphor sludge is first subjected to a steam treatment, thereby causing substances adhering to the surface of the phosphor particles to pass into solution. The phosphor is then washed several times. Following wet screening, one then obtains a phosphor suspension that can be further processed just like virgin phosphor. The said method does not comprise any drying or calcining processes. The steam treatment causes the ...