A dental X-ray fluoroscopy apparatus comprises a fibre optical system (28) which is curved through 180 DEG and which includes an entrance window (36) for intra-oral use. Because use is made of such a fibre optical system, the X-ray source (2) and the detector (14) can be accommodated together in one housing (1). Via three rotation couplings (42, 45 and 48), the housing is connected to an apparatu...

(57) The invention relates to a method for cutting a plant material for the purpose of plant propagation, especially micropropagation, in which method the cutting is carried out by using a laser beam.

For examining a body by means of X-rays or other penetrating radiation, data is determined representing the absorption suffered by each of a plurality of beams which are passed through the body. The beams are effectively arranged in a plurality of sets of beams, in a single plane, at many different angles. The arrangement is such that the amount of information provided by the beams is a function, ...

PURPOSE:To prevent the inner distortion depending on the winding position and the aging, by providing specific winding thread length and the end face angle to a polyester fiber package having specific thread orientation, tension fluctuation and average differential weight between the central and end portions. CONSTITUTION:In order to release the inner distortion after winding, the crystal orientat...

PURPOSE:To easily knot a viscous filament by providing a filament knotting device fixed to one end of a rotary shaft, which includes two guiding plates shaped like a hanging bird at a lip portion thereof. CONSTITUTION:Two filaments A, B are passed through one side of a lip portion 2a from the front of a knotting device 1 and hooked on the tail 2c. After that, when a rotary shaft 5 is turned counte...

PURPOSE:To make suction air temperature rise and dissolve the freezing of moisture in the atmosphere as well as to prevent any damage to a compressor due to the freezing from occurring, by leading steam by bleed air out of a steam turbine into a compressor inlet of a gas turbine, and mixing this steam with the atmosphere to be sucked in to the compressor. CONSTITUTION:A compound power plate is pro...

PURPOSE:To improve the form adaptability by using an inter-cell connector comprising flexible material so that freedom of the cell arrangement is increased. CONSTITUTION:After electrode group 1 has been formed, a flexible inter-cell connector 2 is used for connecting cells. According to this structure, the cell arrangement is variable, as shown in the Figure, when accommodated in a bag 3 used for ...

PURPOSE:To eliminate treatment of oxide film, which has been coated on the surface of electrode panel, by conducting chemical formation after a coating treatment with an acid-resistant material on a place where the electrode is connected electrically when battery is assembled. CONSTITUTION:Part of a positive electrode panel, which will be electrically connected in battery assembly or the vicinity ...

PURPOSE:To make it possible to maintain ion conductivity between positive and negative plates preferably by applying pressure to groups of plates formed through combination of positive plates, negative plates and separators carrying electrolyte. CONSTITUTION:A sealed lead-acid battery is formed by combining one or several groups of plates composed of positive plates, negative plates and electrolyt...

A bedding underlayer for the bed of an incontinent patient comprises an impervious base layer 2, 3 substantially wider than the bed so that opposite lateral portions 2 of the base layer can be tucked under the mattress of the bed, and a liquid-absorbing layer 4 in the middle of the base layer and of the same width as the bed, or of lesser width. The liquid- absorbing layer 4 is surrounded, at its ...

An inspection method and apparatus for searching a fabric in strip form to find lump type and void type flaws on both faces of the fabric. Strobes and image pickup elements are arranged at opposite sides of the fabric in transportation. The strobes at one side of the fabric are caused to emit light, and the image pickup elements at the same side detect light reflected by the fabric while the image...

A motor brake unit comprising a housing member defining a fluid chamber disposed about the motor shaft of a motor, a shaft sleeve disposed within the fluid chamber nestingly engaging the motor shaft for rotation therewith, a first plurality of brake elements rotatable with the shaft sleeve, a brake collar secured to the housing member and disposed annularly about said shaft sleeve, a second plural...

A motor brake unit comprising a housing member defining a fluid chamber disposed about the motor shaft of a motor, a shaft sleeve disposed within the fluid chamber nestingly engaging the motor shaft for rotation therewith, a first plurality of brake elements rotatable with the shaft sleeve, a brake collar secured to the housing member and disposed annularly about said shaft sleeve, a second plural...

A motor brake unit comprising a housing member defining a fluid chamber disposed about the motor shaft of a motor, a shaft sleeve disposed within the fluid chamber nestingly engaging the motor shaft for rotation therewith, a first plurality of brake elements rotatable with the shaft sleeve, a brake collar secured to the housing member and disposed annularly about said shaft sleeve, a second plural...

A magnetic field is induced in a well casing. The location of this field may then be sensed while drilling another well and the direction of drilling modified in response to the sensed location of the first well. This allows one to either avoid or intersect the first well with the second well.

Porous particles of vinyl resin are disclosed where said particles are non-spherical in shape, highly porous, skinless and friable. Processes are also disclosed for producing these novel particles. The particles are preferably PVC and exhibit an ability to absorb large amounts of plasticizer in a short time.

Porous particles of crosslinked PVC are disclosed. The particles are skinless and have a fast powder mix time. Processes to produce the novel particles are also disclosed.

This invention relates to a body of three-dimensional fabric, a method of producing such bodies or parts of various shapes from three-dimensional fabric and also relates to apparatus for industrial performance of this method.