摘要:
For controlling a displacement depending on a pressure differential between a crank chamber (9) and a suction chamber (4), a compressor is provided with a bleed passage (46) establishing communication between the crank chamber and the suction chamber and with a bleed control mechanism which fully closes the bleed passage while the compressor is stopped. The bleed control mechanism may be a suction valve (15) which controls the opening of suction holes of a valve plate (2) synchronously with a compressing operation of the compressor.
摘要:
A video signal processing apparatus in which a video signal channel-selected and received by a tuner is supplied through a switch to a video output circuit and a signal from the video output circuit is supplied to a cathode ray tube (CRT), thereby being displayed on a picture screen of the CRT. Also, the video signal from the tuner is supplied to a video memory of one frame, for example, and an output of the video memory is supplied to the switch. Further, the video signal from the tuner is supplied to a non-signal detecting circuit and a control signal from the non-signal detecting circuit is supplied to the video memory and the switch. Then, when there is no video signal, the switch is changed in position to allow the signal stored in the video memory to be output. Therefore, a picture displayed in the absence of video signal can be stabilized.
摘要:
A main body of a lens-fitted photographic film unit is provided with a film wind-up mechanism, a taking lens and a shutter mechanism. The main body with an unexposed film incorporated is covered by a front cover and a rear cover, which are directly attached to each other by arresting claws in holes formed thereon. The main body is positioned by being held fixedly between the two covers in order to prevent the main body from being damaged when the two covers are removed. In a preferred embodiment, the main body is provided with an electronic flash device, which is operated in synchronism with a shutter blade by use of an X contact. A pair of terminals of metal plates extend toward, and are in contact with, a printed circuit board which is removably supported on the main body by cooperation of supporting members and a supporting plate, both of which are formed outside a light-shielding tube of the main body. In this way, neither the main body nor the circuit board will be damaged when the unit is broken open to retrieve and process the exposed film; and so the undamaged parts can be reused.
摘要:
A method of curtain coating that applies a free falling curtain of liquid coating composition onto a running support is disclosed. In the method, the sides of the support parallel to the running direction of the support are bent downwardly before the curtain is applied, and thus are not coated, and are subsequently unbent.
摘要:
A plurality of cylinder bores are circumferentially formed in a cylinder block around its center axis to receive a plurality of pistons, respectively. The cylinder block has one end closed by a front housing to define a crank chamber. The cylinder block has another end closed by a rear member in which a discharge chamber and a suction chamber are formed. A drive shaft penetrates the front housing and has one end supported by the cylinder block through a block-side bearing. Following a rotary motion of the drive shaft, a swash-plate element drives a reciprocating motion of the piston within the bore. A blowby gas leaking into the crank chamber is introduced into the suction chamber a gas passage through an gap inevitably left between the drive shaft and the block-side bearing back.
摘要:
A system to correct and adjust horizontal-direction pincushion and barrel distortions of scanning lines caused at upper and lower portions of a picture screen of a cathode-ray tube includes a pair of coils provided at a neck portion of the cathode-ray tube. An orbit of an electron beam made incident on a deflection center is shifted in the upper and lower directions by a magnetic field generated by the coils, thereby correcting distortion of scanning lines at upper and lower portions of a display screen of the cathode-ray tube.
摘要:
A swash plate type refrigerant compressor comprises a compressor housing enclosing therein a crank chamber, a suction chamber and a discharge chamber. A swash plate is tiltably connected to the drive shaft and has two sliding surfaces sides thereof. The swash plate includes a sliding surface which engages a plurality of pairs of shoes. The shoes couple the swash plate to the pistons so that the pistons may be driven in a reciprocating motion within the cylinder bores upon rotation of the swash plate. At least one groove is formed in the sliding contact surfaces between the swash plate and the shoes. The groove captures and retains lubricating oil in the refrigerant in response to the rotation of the swash plate.
摘要:
After exposure of all frames of a film contained in a lens-fitted photographic film, a wall portion of a film take-up chamber of the film package is removed, thereby to provide a film removal opening, through which the exposed film is drawn out directly from the film package. In the film take-up chamber, a cassette or a take-up spool is disposed for winding up the exposed film. So as not completely to wind the exposed film into the cassette, a film arresting member is provided. A film package holder disposed at a film entrance of a film processor can selectively hold the film package or a film cassette taken out from a camera.
摘要:
An automatic printing system includes an array of printing devices arranged along a direction in which the printing member is fed, each of printing devices having a positioning mechanism for positioning the printing member, a feeding device for feeding a printing member to each printing device, a delivery device for picking up the printing member from the feeding device and bringing the printing member into engagement with the positioning mechanism, and a discharging device for discharging the printing member, which has been exposed by the printing device, from the printing device. the automatic printing system further includes a supplying device for storing printing members of different sizes and selectively supplying the printing members one at a time, a punching device for forming a positioning opening in the printing member supplied by the supplying device, and an automatic developing device for developing the printing member which has been exposed by the printing device.
摘要:
A method of manufacturing a paper container, where a parallelepiped inner body in the form of a box having no top panel board from a first blank sheet of corrugated board or card board is first fashioned. An outer body by packaging the inner body with a second blank sheet in such a manner that said outer body is in close contact with the outside of the inner body is then made. Finally, a continuous cut in the outer body is made to divide the outer body into the upper part and the lower part so that said upper part of the outer body can be detachably mounted on the inner body.