摘要:
A smoke detector, on a base element with a flat installation surface, features a first light transmitter attached to the installation surface for emission of a first illumination light, a first light receiver attached next to the first light transmitter for receiving a first measurement light which results from a backscattering of the first illumination light at a measurement object located in a first detection area. The smoke detector further features a second light transmitter attached to the installation surface for emission of a second object illumination light, a second light receiver attached next to the second light transmitter for receiving a second measurement light which results from a backscattering of the second illumination light at a measurement object located in a second detection area, and a data processing device, which is used for joint evaluation of a first output signal of the first light receiver and of a second output signal of a second light receiver. In addition a method for the detection of smoke using the described smoke detector is specified.
摘要:
A fire detector has at least two sensor units for monitoring a confined space for the occurrence of a fire. A first fire parameter is monitored according to the scattered light method, using a first sensor unit located at or in the vicinity of the ceiling. At least one second sensor unit of the fire detector, which emits at least two highly focused light beams towards the floor of the confined space, monitors a second fire parameter according to the extinction method.
摘要:
A friction coupling assembly includes: a ball ramp assembly (2) with two coaxial discs (6, 7), wherein the faces (8, 9) of the two discs (6, 7) each have ball grooves (12, 13) of increasing depth, wherein pairs of opposed ball grooves hold balls to axially support the two discs (6, 7); a plate package (3) arranged coaxially relative to the discs (6, 7) and having outer plates (24) for fixing to a coupling carrier (40) and inner plates (25) for fixing to a coupling hub (56); and a plate spring (5) for introducing force into the plate package (3), the plate spring (5) is arranged coaxially relative to the discs (6, 7), is axially pretensioned and, functionally, is arranged in series with the plate package (3).
摘要:
An apparatus for continuous drying and shrinking of textile knitted or woven good incorporates at least one drying station that includes several oppositely disposed and oppositely hot-air nozzles which are offset relative to each other and directed into a through-channel defined thereby. At least upper and lower endless rotating, porous guide belts limit the channel above and below. An endless rotary web-tentering frame passing along the through-channel limited by the guide belts conveys a web of material to be treated through the at least one drying station, wherein a first vertical distance between the frame and a lower strand of the upper guide belt and a second vertical distance between an upper strand of the lower guide belt are defined such that, as the apparatus operates, within a predetermined effective range of a hot-air nozzle directed thereon, a web, in a locally limited area, secured in and conveyed by the webtenter frame, comes into contact with a portion of a corresponding guide belt, whereby the lower and/or upper guide belt moves at greater speed than that of the tenter frame. A supply mechanism for conveying the web to be treated to the tenter frame includes a device for securing the material with forward slip to the tenter frame.
摘要:
In a light barrier, especially for outside application and long distances monitored, insensitivity to interfering light and scattering through fumes or fog and an increased range and sensitivity to objects passing through the light barrier are achieved by subdividing radiation from a source into two radiation branches which are offset relative to each other and differently polarized, e.g., by means of a polarization filter divided into two parts, with different linear or oppositely circular polarization of the filter part surfaces. By means of an analogously subdivided polarization filter, the radiation of each of the two radiation branches is focused on a different individual sensor element. The two sensor elements are connected in a differential circuit which triggers an alarm signal in response to signals arriving from both radiation branches in short succession but does not trigger an alarm signal if both sensor elements are equally irradiated.
摘要:
A device for mounting articles of clothing for controlling purposes or for smoothing in an ironing apparatus, comprising a mounting frame and a holding section which holds the latter and sits on a revolving conveyor, is described.To eliminate the making available of a plurality of mounting frames adapted to the various sizes of articles of clothing of a design range, and, consequently, the time-consuming exchanging of mounting frames on the holding sections of the revolving conveyor, it is proposed that the mounting frame be constituted by two component frames arranged alongside each other in the direction of advance, which are adjustable relative to each other by an adjustment device provided on the holding section for alteration of their spacing.
摘要:
The invention relates to a frame for the transport and storage of pipes of profile frame parts, of which the upper and lower profile frame parts are connectable with one another by rods which can be conducted through recesses of the profile frame parts and are swingably arranged with an end provided with a transverse piece in lateral transverse bores of a profile frame part. In order to improve the support of the pipes on the frame parts and to simplify and cheapen the manufacture, the frame parts are C-profiles with retracted base part, two C-profiles arranged in one another in opposite directions, the shanks of the outer C-profile extending beyond the base of the inner C-profile, or box profiles with side wall extensions. In particular, as middle frame parts there are used double C-profiles. In the free shanks or extensions of the profiles there are formed, as supports for the tube, divided-circular recesses, which, if need be, have a flange with inner reinforcing walls which faces inward or outward. Connecting rods join the upper and lower profiles; for this purpose recesses are provided on both ends in horizontal wall parts of the profiles.
摘要:
A device for regulating the vacuum in milking installations has a main valve and an auxiliary valve. A main valve chamber is connected with the atmosphere and, through a valve seat to the vacuum line. A control chamber is closed off from the main valve chamber by a first membrane and from the atmosphere by a second membrane. Both membranes are joined to a movable support bearing the main valve body, which presents active surfaces of different size to the main valve chamber and to the atmosphere. The position of the main valve is dependent upon the pressure in the control chamber, which pressure is determined by the auxiliary valve which is disposed in the support. The auxiliary valve has two auxiliary chambers separated by an auxiliary membrane to which the auxiliary valve body is fastened. The first auxiliary chamber is connected to the vacuum line and the second auxiliary chamber is connected to the atmosphere. The position of the auxiliary valve is dependent upon the pressure difference in the auxiliary chambers and the force of an adjustable spring acting on the auxiliary valve body. The control chamber and first auxiliary chamber are connected to the vacuum line by a passage disposed centrally thereof.
摘要:
A differential assembly 2 for variable torque distribution in the drive line of a motor vehicle. A differential gear 21 with a rotationally drivable differential cage 4 and two output shafts 3, 3′, which are drivingly connected to the differential cage 4 by means of a differential gear set 7, 9, 9′, wherein a first drive train is formed. A gear stage 14, 14′ per output shaft 3, 3′, which gear stage is drivingly connected on one side to the differential cage 4 and on the other side to one of the output shafts 3, 3′ is part of a second drive train which is functionally parallel to the first drive train. Friction clutch 15, 15′ are provided for each gear stage 14, 14′ and ball ramp assemblies are provided for actuating the friction clutches, the ball ramp assembly having a plurality of ball grooves 44, 45; 44′, 45′ of variable depth. A single electric motor 52 is drivingly connected to rotatably driveable discs 43; 43′ of axial setting devices 16, 16′.
摘要:
A photographic copy apparatus for processing of photographic copy material housed in mobile cassettes, at least two cassettes being combined on either side of an exposure station in a block so that the cassettes on an inlet side are approximately opposite cassette openings of cassettes on an outlet side. The cassette openings of the cassettes in their working position are aligned with the transport path for the copy material and additional cassettes behind those in their working position are aligned with a parallel to the transport path. Transport devices are provided above the cassettes combined in blocks for their exchange.