摘要:
An apparatus for identifying the position of defects (100) in bodies (2), in particular in wooden bodies such as logs or planks, comprises feed means (3) for moving the body (3) along a feed direction (A), an emitter (5) designed to direct towards the body (2) a plurality of beams (6', 6'', 6''') of electromagnetic radiation lying in lying planes (P1, P2, P3) set at different angles to each other and transversal to the feed direction (A), and a plurality of sensors (8', 8'', 8''') each facing the emitter (5) for receiving a respective beam (6', 6'', 6''') after the beam (6', 6'', 6''') has passed through the body (2). The lying planes (P1, P2, P3) are positioned one after another along the feed direction (A), allowing the same portion of the body (2) to be struck by successive beams (6', 6'', 6''') as the body (2) is fed forward. A method for identifying the position of defects in bodies, in particular in wooden bodies such as logs or planks, comprises the steps of feeding a body (2) along a feed direction (A), striking at least one portion of the body (2) with a plurality of beams (6', 6'', 6''') of electromagnetic radiation lying in respective lying planes (8', 8'', 8''') which are set at different angles to the feed direction (A), and detecting a residual intensity of each beam (6', 6'', 6''') after it has emerged from the body (2) to evaluate an energy absorption by said portion of the body (2).
摘要:
A tunnel pasteuriser comprises forward movement means (2) for moving products (3) to be pasteurised forward on a forward movement path along which there is a heating zone (4), a heat treatment zone (5) and a cooling zone (6). Each of said zones is divided into two or more sub-zones equipped with spraying means (10) for spraying a treatment liquid (11) onto the products (3) in transit in the sub-zone, and at least one tank (12) for collecting the liquid (11) that was sprayed on the products (3). In each heat treatment sub-zone (9) there are also means (20) for collecting the liquid (11) which wet the products (3) being treated. The collecting means (20) can be switched between a first operating condition in which they direct the liquid (11) collected towards the collection tank (12) of the relative heat treatment sub-zone (9), and a second operating condition in which they prevent the liquid (11) collected from reaching the tank (12) of the relative heat treatment sub-zone (9).
摘要:
A machine for cutting stone materials comprises a fixed supporting structure (2) and a frame (3) slidably mounted on the supporting structure (2). A plurality of cutting devices (4) is mounted parallel with one another on the frame (3). Each cutting device (4) comprises at least one first flywheel (6) and one second flywheel (7) in the same plane, distanced from on another and rotatably mounted on the frame (3), at least one cutting wire (8) wound in a loop around the flywheels and tensioning means (10) operating on the first flywheel (6) to keep the cutting wire (8) taut. Moreover, for each first flywheel (6), there is at least one sensor (14) for detecting the position of the first flywheel (6) relative to its supporting shaft (11). A control unit is programmed to vary the speed of movement of the frame (3) relative to the supporting structure (2), depending on the position of the first flywheels (6) detect by the relative sensors (14).
摘要:
The invention relates to a polyvalent module for building wire gabion walls, wherein said module is pyramidal and consists of four profiles (1) which are arranged in a cross-shaped manner forming the base of the pyramid and which are hingedly fixed to a connecting element (2) that is fixed to the end of a profile or tube (3) matching the height of the pyramid. The outer ends of said profiles (1) that are arranged in a cross-shaped manner are connected to the neighboring profiles by wire cables (6). These same ends are connected to the free ends of the tube or profile (3) or to a point on the tube or profile (3) located at a distance from the connecting element (2) by means of wire cables (5). One or more grids (11), which are placed in the pyramidal element with the purpose of building a gabion box, are disposed on the inside in relation to the profiles (1) that are arranged in a cross-shaped manner and that form the base of the pyramid and on the inside or outside relative to the lateral planes that are clamped by wire cables (5) defining the lateral edges of the pyramid.
摘要:
A multi-layer product comprises at least a first layer mainly made of a perfluorinated material and having a modified outer surface, and at least one covering layer mainly made of rubber and applied on the outer surface of the first layer without any adhesive being inserted between them. The outer surface of the first layer is modified in such a way that, compared with the unmodified perfluorinated material, it has a reduced quantity of fluorine F atoms, a distribution of hydrogen H atoms and/or nitrogen N atoms, and substantially the same quantity of oxygen O atoms. There is also a method for production of the multi-layer product.
摘要:
The invention relates to a bicycle provided with a gearwheel consisting of a transmission element (3) rigidly connected to a drive shaft (1), a gear rim (4) which comprises an internal toothed gearing and in front of which all other components of a hypocycloidal gearwheel are fixed, a planetary gear (5) which is provided with several gearings and engaged with the gearing of the gear rim (4) by one of the gearings thereof, a sliding member (8) disposed between the plurality of gearwheels (6) and an output shaft (2) and displaceable in the direction thereof between a plurality of positions in each of which one of the gearwheels (6) and said output shaft (2) are rigidly interconnected.