Abstract: An air flow rate measuring device for an internal combustion engine has a housing adapted to be inserted through a wall, the housing defining an air intake main passage of the engine. The housing also has an auxiliary air passage for a portion of the intake air and the housing supports a circuit board containing a hot wire and a temperature sensitive resistor, the hot wire being adapted to measure the air flow rate in the auxiliary passage. In a feature of the invention the housing has a metallic wall which is exposed to air flow in the main passage so that improved temperature reliability of the device may be achieved.

Abstract: In a photographic material processing apparatus in which a photographic material is conveyed while being immersed and processed in photographic material processing liquids, guide members are provided at each boundary between adjacent processing tanks, and a cleansing liquid is supplied to the contact surfaces of guide members contacting where a photographic material comes into contact with the guide members to thereby rinse off the processing liquid adhering to the guide members. Accordingly, no degenerated matter of the processing liquid adheres to the guide members, the photographic material is not stained through contact with the guide members, and processing can be performed uniformly.

Abstract: A method for continuously processing silver halide color photographic materials using a roller conveyor type of an automatic developing apparatus, comprising:cleaning the entire surface of a roller located over solution surface of at least one of processing baths in the automatic developing apparatus in which at least one of said processing baths comprises the color developing bath by a rinsing water replenisher or a stabilizing replenisher as a substitute for the rinsing water replenisher, andintroducing the cleaning solution into the color developing bath containing at least one organic preservative selected from the group consisting of compounds represented by formulae (I), (II), (III) and (IV) and monosaccharides; ##STR1## wherein R.sup.11 and R.sup.12 each represents hydrogen atoms, unsubstituted or substituted alkyl groups, unsubstituted or substituted alkenyl groups, unsubstituted or substituted aryl groups or hetero aromatic groups, provided that both of R.sup.11 and R.sup.

Abstract: In photographic silver halide photosensitive material processing apparatus comprising a processing tank for processing the photosensitive material by dipping it in a processing solution and a drying section including pairs of transport and guide rollers for cooperatively transporting the photosensitive material therethrough while drying it, the transport and guide rollers are provided with a coating containing a hydrolytic silicon oxide condensate or a silicone resin.

Abstract: A photosensitive material processing apparatus adaptable for occasional operation is provided, comprising a processing tank filled with processing solution and an adjustable closure for controlling access to the tank through its top opening. The adjustable closure includes a fixed lid, a movable lid, and a drive for the movable lid. The operating openness, which is the surface area of the solution open to the ambient atmosphere divided by the volume of the solution, is set in a specific range and the quiescent openness is up to 70% of the operating openness.

Abstract: A photosensitive material to which an image has been exposed is successively dipped into treatment liquid such as developer wherein development or other treatment is conducted. The photosensitive material drawn out from each treatment liquid is held by holding rollers and the treatment liquid is wiped off. Since washing water is supplied to these holding rollers to wash and wipe off the treatment liquid from the photosensitive material and the water is supplied to the treatment chambers, the holding rollers can be kept clean.

Abstract: A light-sensitive material feeding rack for feeding a light-sensitive material along a feeding path within a processing tank by holding the material between paired feed rollers. The rack has guide plates extending along the feeding path for guiding the material to the light-sensitive material entrance side of the paired feed rollers. These guide plates are each rotatable about the ends thereof that are closer to the light-sensitive material entrance side. When the rack is to be cleaned, the guide plates are rotated so as to open the interior of the rack, thereby facilitating the cleaning of the rack. After the completion of cleaning, the guide plates are rotated in the opposite direction to be returned to their original condition. Even after the returning of the guide plates, the positional relationship between the feed rollers and the end portions of the guide plates that are closer to the entrance side can be very precisely maintained.

Abstract: A plurality of patrones accommodating films to be developed are housed in a magazine, and this magazine is connected to a developing system. A conveyor for consecutively feeding leaders connected to the tips of the films is provided in the magazine, and these leaders are fed one by one into the developing system, whereby all the films are automatically developed.

Abstract: A plurality of patrones accommodating films to be developed are housed in a magazine, and this magazine is connected to a developing system. A conveyor for consecutively feeding leaders connected to the tips of the films is provided in the magazine, and these leaders are fed one by one into the developing system, whereby all the films are automatically developed.

Abstract: A photosensitive material guide structure for use in a developing apparatus adapted to develop a photosensitive material having been subjected to light exposure has at least one pair of feed rollers which feed forward the photosensitive material while clamping it therebetween within the developing apparatus. Both axial end portions of at least one of the pair of feed rollers are reduced in diameter. Accordingly, when the rollers clamp the photosensitive material to feed it, both the lateral edge portions of the photosensitive material are subjected to a clamping force which is weaker than that applied to the other portion of the material.

Abstract: A drying apparatus for drying photographic paper includes a rotary drum and a duct having a recess which is provided with air outlet bores. A photographic paper passing area is defined between the outer periphery of the drum and the recess of the duct. The warm air blown out of the air outlet bores presses the side (the reverse side) of the photographic paper which is opposite to the emulsion layer side thereof against the outer periphery of the rotary drum, thereby maintaining the emulsion layer side of the paper in a non-contact state while the paper is being transported. The rotary drum is provided with bores through which the warm air is sucked in so as to suction-hold the photographic paper on the outer periphery of the rotary drum, whereby the photographic paper is also heated from the reverse side thereof.

Abstract: A hot-wire flow rate measuring apparatus includes a first thermo-sensitive resistive element disposed in the flow path of fluid under measurement, resistor unit connected in series to the first sensing element, a second thermo-sensitive resistive element for temperature compensation disposed in the flow path of the fluid, a control circuit adapted to supply a current to the serial connection of the first sensing element and the resistor unit in response to the difference between the voltage produced by the first sensing element and the voltage produced by the second sensing element, and an output circuit for producing a voltage representative of the fluid flow rate in response to the terminal voltage of the resistor. The apparatus is further provided with a current circuit which controls the ouptut characteristics of the output circuit by supplying a compensation current proportionate to the terminal voltage of the resistor to a portion of the serial connection.

Abstract: A clip 12 is engaged with the leading end portion of a photosensitive material 10 of continuous length which has been printed with images. The clip is propelled by a driving force to convey the photosensitive material. In a clip removing device 56, rotating arms 66 bend the leading end portion of the photosensitive material in the direction of the thickness thereof such that the leading end portion is disengaged from the clip. The photosensitive material is then fed by rollers 72, 74, 80, 82 to a subsequent stage 87 where it is cut off.

Abstract: A film handling mechanism for receiving a film and spool ejected from a film cartridge and for forwarding the film to a subsequent film processing station. Film guide members are movable to form an opening having a diameter substantially equal to the inside diameter of the film receiver when a film is received in the receiver, and then set to a diameter suitable for holding the spool of the film after the film has been completely received in the film receiver. A pair of shafts is used for ejecting the film and spool from the film cartridge and transferring it into the film receiver.

Abstract: A film handling device for pulling out and forwarding a leader from a spool of film after the film has been removed from a film cartridge. The spool of film is held in a film guide having an arcuately formed rear portion shaped to receive the spool of film and a forward guide portion composed of straight sections converging towards a forwarding opening. A pair of film forwarding rollers are selectively engageable with the spool of film through cuts formed in the rear portion of the film guide. A detector positioned in the forward portion of the film guide detects the presence of the film leader. Before the presence of the film leader is detected, the film forwarding rollers rotate the spool of film in the film rewinding direction. Then, the direction of the rollers is reversed.

Abstract: A film processing method for removing troubled film strips from a series of film strips to which it is spliced for processing. The troubled film strip is removed by cutting along a line located inwardly of a leading end of the troubled film strip by a distance at least equal to the width of a splicing tape from a center line of the splice between the leading end of the troubled film strip and a preceding film strip such that a part of the troubled film strip remains connected to the preceding film strip. A succeeding film strip, or another film strip, is then spliced to the remaining part of the troubled film strip.

Abstract: In a film cutter which is activated at the end of the film by a film end detection signal, the length of film transported is monitored and the cutter is activated only if the film end detection signal occurs during predetermined ranges of film length.

Abstract: A convergent lens is pivotable into the optical path of a picture printer simultaneously with pivotting of an observing condition mirror so that the mirror and the observing screen can be made smaller. The mirror is separated into two parts, and the lens, mirror parts and a shutter are moved by a simple link mechanism.

Abstract: A semiconductor absolute pressure transducer assembly has a silicon diaphragm assembly and a covering member. The silicon diaphragm assembly has a circular pressure sensitive diaphragm, on the surface of which are diffused piezoresistors and conducting paths. The covering member composed of borosilicate glass has a circular well formed therein. On the surface of the silicon diaphragm assembly on which the piezoresistors and the conducting paths are diffused, a passivating layer of silicon dioxide is deposited. Further on the passivating layer, a conductive layer is formed by, for example, evaporating silicon. And the glass covering member is bonded on the silicon diaphragm assembly by anodic bonding. Namely, the silicon diaphragm assembly and the glass covering member are heated up to a certain high temperature and a relative high voltage applied across the conductive layer of the silicon diaphragm assembly and the glass covering members.