Abstract: The present invention provides an image processing apparatus capable of forming a sharp image of a detection mark formed in a plane. The image processing apparatus comprises a camera unit (1) comprising a lens system (12) and a photodetecting device (13) inclined at a predetermined angle to the optical axis (L') of the lens system. The camera unit (1) is disposed with the optical axis (L') of the lens system (12) inclined at a predetermined angle to a perpendicular line (L) to the plane including the detection mark so that the difference in length between respective sections of light paths between diametrically opposite portions of the detection mark and the lens system is canceled by the difference in length between respective sections of the same light paths between the lens system and the photodetecting device.

Abstract: The present invention provides a handpiece for dental medical treatment in which a head portion encasing therein an air turbine is detachably mounted on a handpiece body whereby the handpiece body capable of being subjected to high temperature sterilization by boiling is repeatedly used whereas the head portion is discarded after use to maintain the aseptic state of the whole handpiece and positively prevent secondary infection such as AIDS, hepatitis, etc. in an actual medical site. Furthermore, the construction of the air turbine and molding of various parts are simplified so that the head portion can be provided at extremely low cost to effectively prevent infection of AIDS, hepatitis, etc. as mentioned above.

Abstract: The invention is directed to a turbine type air motor adapted for use in a hand-piece for dental treatment and includes an air motor body supported by both ends of a turbine shaft with axle-bearings. The air motor includes an air charging passage for introducing compressed air from the rear end, an air discharging passage provided therein in parallel with the air charging passage, and a collet adapted to detachably load a cutting tool. Air flow in the air charging passage is directed to cool one axle-bearing and other air flow in the air discharging passage is directed to cool the other axle-bearing for locally cooling frictional heat generated in both axle-bearings by the high frequency of the air turbine rotation. The collet is devised to easily load the cutting tool by pushing a knock tube provided in the rear end of the hand-piece.

Abstract: The apparatus for making cooled concrete of this invention produces cooled fresh concrete by cooling the aggregate (or gravel). The aggregate is cooled by immersion in a cooling water bath accommodated in a cooling water tank. The cooling water in the tank is cooled by a heat exchanger, which in turn is cooled by a forced cooling device. The aggregate is immersed into the cooling water bath by a supply and ejection apparatus, which also removes the cooled aggregate from the cooling water bath. The cooled aggregate is supplied to a cement mixer where it is mixed to become cooled fresh concrete.

Abstract: A multiple punching press includes a supporting framework having a die block with a plurality of slug holes. A movable punch holder moves relative to the die block and includes a plurality of punch pins that are movable within the movable punch holder between a first limit position where the punch pin is able to pierce the workpiece and a second limit position where the punch pin is unable to pierce the workpiece. Each punch pin includes a position setting mechanism that includes an actuator and cam to move the punch pins against the biasing force of a spring.

Abstract: In a punching unit for punching apparatus having a punch removably mounted on the upper half side of a support section formed nearly in a channel-shape such that the punch will face a die mounted on the lower half side of the support section, and a lifting mechanism for vertically moving the punch, a flat force-cutting blade is attached at the bottom end of the punch rotatably mounted on the support section, and a lifting mechanism is provided in the support section to turn the punch through an angle of 90 degrees.

Abstract: An air motor assembly driven by compressed air for using pencil type handy grinder, comprising an outer jacket casing made of a synthetic resin to cover a metal-made cylindrical housing to house an air turbine cylinder having air jetting nozzles into the turbine rotor thereof and air discharging apertures at opposite side of the air jetting nozzles, the compressed air feeding passages provided along the axis to the air turbine cylinder and the discharged air exhausting passages provided in parallel with the air feeding passages, the feeding air control mechanism including an air valve tube with air communicating orifices and a flange shaped valve, an air controlling knob made of a synthetic resin having double cylindrical structure consisting of an inner cylindrical body and an outer cylindrical body which is to be inserted into the enlarged portion of the outer jacket casing to form the discharged air exhausting passage between the inner and outer cylindrical bodies, and a noise silencing baffler made of a f

Abstract: A multiple piercing apparatus for piercing a workpiece having a plurality of reference marks defining the piercing locations. A plurality of adjustably movable piercing unit cases are opposedly arranged on opposite sides of a machine bed. A piercing element, such as a twist drill or punching assembly, is mounted for movement with respect to the unit case to be aligned with a respective reference mark in response to data received from a sensor, such as a camera or photo-sensor.

Abstract: A punch press machine for piercing a so-called green sheet made from a ceramic compound formed as a thin tape utilized for IC substrate and the like after sintering for solidification. The green sheet is adhered to a liner, such as a plastic tape, and has a core portion. The punch press machine is capable of piercing the green sheet together with the liner, without peeling of the tape liner from the core portion of green sheet. The machine consists of a punch press section, a work piece feeding section and a drive mechanism to move the work piece feeding section or the punch press section under mechanical automation, thus facilitating the piercing work with high productivity and quality.

Abstract: In a punching unit for punching apparatus comprising a support section of a generally C-shape with a material inserting groove formed in the middle, a punch vertically movably and removably mounted in a mounting bore in the side end of the upper half of the support section, a die removably mounted in the side end of the lower half of the support section and having a die opening formed conforming to the outer periphery of a working surface of the punch, and a lifting mechanism removably connected to the die, the working surface of the punch is formed in a shape of a concave slot, and a slug discharge bore is provided communicating with the die opening of the die and with the lower half part of the support section.

Abstract: An apparatus for boring a laminated plate includes a table having a first surface on which a laminated plate may be placed for boring and an opposing second surface, the table defining at least one passage therethrough; a supporting pad for urging a laminated plate to be bored towards the first surface of the table; and a cutter for boring a laminated plate to be bored, the cutter operable to bore in a direction generally opposite to the direction that the supporting pad urges and through the passage defined by the table. Further according to the present invention, the cutter includes a knife edge, a pivotal mechanism adapted to be pivoted about its axial center line, and a stepping mechanism for moving the knife edge in one direction and unsuccessively further in a second direction so that successively deeper boring may be performed.