摘要:
Chair having seat and back parts capable of springy tilting relative to each other. The seat and back parts are provided in the region where they join each other with a reduced width to intensify the relative tilting thereof. Longitudinal slots are also provided in the seat and extend from the region of reduced width to further intensify this relative tilting.The chair frame is provided with fastening elements in the region of the front edge of the seat for tilting attachment of seat and back.
摘要:
A folding chair defined by an H-shaped front portion and an H-shaped back portion secured together in an articulated manner by a mechanism including a pair of cross strut assemblies, a pair of rear braces, a pair of front braces and a pair of articulated lever linkages, which mechanism permits the chair to be folded into an extremely compact assembly and unfolded into a highly stable position of use. The chair also includes a removable backrest for providing resilient support to the back of the user, a flexible web seat tensioned between the front and back portions and a pair of armrests carried by the lever linkages.
摘要:
A pressure gauge, or transducer, for high-temperature applications, comprising a sensor module with a sensor body having a measuring cell chamber containing a pressure measuring cell. The pressure measuring cell can be subjected to the action of a pressure via a first hydraulic path filled with a transmission liquid. The pressure gauge also comprises a transmission module for transmitting a pressure to the first hydraulic path. The transmission module has a second hydraulic path, which is filled with a transmission liquid and extends from a process diaphragm, through a transmission body and to a transmission diaphragm. The transmission diaphragm is attached to the transmission body in a pressure-tight manner, and the sensor body is joined to the transmission body in a pressure-tight manner, whereby the transmission diaphragm communicates with the first hydraulic path so that the pressure of the second hydraulic path can be transmitted via the transmission diaphragm to the first hydraulic path.
摘要:
A display setting arrangement for a timepiece, having a 12-hour display, on which, driven in a rotatable manner by a basic mechanism with two revolutions every 24 hours, the hours can be displayed. There is also a second hour display, which can be driven in a rotatable manner likewise by the basic mechanism. By means of a correction device, the 12-hour display can be adjusted manually relative to the second hour display. The second hour display is a 24-hour display and can be driven in a rotatable manner, in a direct gear train, by the basic mechanism of the time piece with one revolution every twenty-four hours. Via a force-fit connection, a 12-hour gear train can be driven in a rotatable manner, for the purpose of driving the 12-hour display, by a direct-gear-train wheel which is driven with one revolution every twelve hours. In this case, a setting device which can be actuated manually, it is possible to adjust, separately from one another, either the direct gear train or, by overcoming the force fit of the force-fit connection, the 12-hour gear train relative to the direct gear train.
摘要:
An electrically actuatable fuel-injection valve for internal combustion engines has a piezoelectric hollow-cylindrical radial vibrator (11) within the wall (30) of which a number of continuous fuel-receiving chambers (12, 12') are arranged parallel and concentric to a longitudinal axis (19) of the radial vibrator. Each of the chambers (12, 12') is in communication at one open end with a fuel feed path and at its other open end has an ejection opening in the form of a bore (27, 27'). A passage line (passage bore 29) for a stream of air which conducts at least a part of the stream of intake air is conducted through the radial vibrator (11) concentrically to the longitudinal axis of the radial vibrator. The passage line terminates, open, approximately at the level of the injection openings.
摘要:
There is described a method for motion monitoring of a machine, comprising a sensor, wherein a sensor signal is transmitted from the sensor to a controller and/or to a drive device, a failsafe controller or drive device being employed as controller or drive device. The controller or drive device comprises three independent monitoring devices in which the sensor signal is formed from a first and a second redundant actual position value.
摘要:
In an electrically actuatable fuel-injection valve for internal combustion engines, a piezoelectric oscillator (radial oscillator 11) which is provided with electrodes has at least one fuel-receiving chamber (12). The chamber (12) is in communication with the fuel feed path (constant-volume chamber 20) and an ejection opening (bore 17). The oscillator (11) is mounted in a block (18) out of which the fuel feed path (constant-volume chamber 20) is also formed. Furthermore, a high-voltage generator (35) is located, electrically shielded from the outside, within the block (18), which consists of metal. The high-voltage generator is connected to the electrodes of the piezoelectric oscillator (11) via feed lines (14, 15) which are conducted within the block (18).
摘要:
A combined device is provided for positioning between the outlet of a gas turbine and a steam generator. The combined device acts as a sound-absorber and as a diffusor and is designated a gas turbine muffler. The gas turbine muffler has an inner zone which widens out in the flow direction S at a relatively large angle. Deflector elements arranged in this inner zone delineate diffusor channels, that are located between adjacent deflector elements. The diffusor channels widen out in each case at a significantly smaller acute angle of less than 7.degree.. In addition to decelerating the stream of gas and hence, in addition, increasing the pressure, the narrow diffusor channels also bring about sound-absorption by reducing the regions of turbulence, making the stream more uniform, and aligning the stream. As a result of the additional function of the gas turbine muffler as a diffusor, the separate diffusors, which were required previously and which claimed a large amount of construction space, can be dispensed with.
摘要:
In a linear motor having a rotor and a stator, the rotor comprises two rotor elements which can be clamped in the stator by means of clamping elements as a function in each case of a signal which is fed and which are connected by at least one piezoelectric element (actuator element) by which the distance apart of the rotor elements can be varied as a function of a control signal which is fed. By the application of an electric voltage there takes place in each case an expansion of the clamping elements transverse to the direction of movement and an expansion of the actuator element in the direction of movement. One particularly advantageous embodiment resides in the fact that the rotor is developed in a flat shape and that the rotor elements contain the clamping elements in a frame-like holder, at least one side of the frame-like holder being movable with respect to the other sides.