baber/WOPTO huggingface dataset:
Patent DE-2533889-A1 (DE)
Title: Broadband transistor line amplifier for carrier frequency system - has input and output common emitter stages and common collector middle stage
Inventor: BENZ PAUL DIPL ING
IPC: H03F1/34
Filed: 1975-07-29
Abstract: The broadband transistor line amplifier, for carrier frequency systems, operates in the 4-60 MHz band and has a simpler construction than existing amplifiers. The amplifier has a common emitter input stage, a transformer input bridge, an output transformer in the collector circuit of the output transistor stage, and a Bode equaliser and main equaliser in its negative feedback path. The input transistor is of the opposite conduction type to the two transistors in the other two stages. The second stage is in common collector and the output stage in common emitter configuration. A second transformer with a 1:1 transfer ratio is also located in the output stage's collector circuit.
Patent DE-2540583-A1 (DE)
Title: Circular saw blade for higher cutting speeds - has rolled grooves on both sides and dished centre
Inventor: FELDE HERBERT RICHARD
IPC: B23D61/02
Filed: 1975-09-11
Abstract: A circular saw blade (1) hs a rolled groove (2) both sides. The distance of the rolled groove, with reference to the radius of the saw blade and measured from its periphery, measures 1/10r up to 8/10r, preferably between 3/10r and 6/10r. The rolled groove is produced under high pressure so that the ratio of the depression with reference to the radius of the saw blade is 1/10 or up to 1/180, preferably 1/40 to 1/100. Relationship between saw blade thickness and radius is smaller than 0.022, preferably smaller than 0.012.
Patent DE-2541506-A1 (DE)
Title: Dental chair with adjustable head rest - has arm to guide headrest while position is determined by shape of cam surface
Inventor: SAUPE MARTIN DIPL ING
IPC: A61G15/12
Filed: 1975-09-17
Abstract: The Dental chair has a head rest (2) which can be adjusted to different angles. The head rest is adjusted in such a way that the point (a) at which the patient's head rests on it follows the natural path of inclining movement (4) during adjustment. Pref. the head rest includes an intermediate member (7) with a curved surface (6) which is guided by a guide (8) provided on the back. The intermediate member is connected at its end remote from the head rest to a pull-push device mounted on the back. The curved surface of the intermediate member comprises sections which are curved in opposite directions in an undulating manner, as seen from the side of the head rest.
Patent DE-2543750-A1 (DE)
Title: Cooling and drying box for metal strip - to sharply cool the strip during rolling
Inventor: ECONOMOPOULOS MARIO
IPC: B21B45/02
Filed: 1975-10-01
Abstract: Device for providing intense cooling during rolling of a metal strip comprises one after the other, (a) an entry box comprising in which the strip is water cooled and (b) an air drying box; having devices for removing water from the strip. More spec., the entry box has two distinct parts, the first has a wide mouth of gradually decreasing height, and is fed with water from entry just below the roof of the mouth and projecting the water at high velocity into the entry box in the forward (rolling) direction. The roof angle changes to horizontal in the second part of the entry box at a point immediately above a roller the upper part of which is inside the box. The floor of the box in both parts is inclined slightly towards the roller. The box has increased cooling efficiency, is suitable for any width metal strip and will accept metal strips with flatness defects.
Patent DE-2546974-A1 (DE)
Title: Visual aid for programmed learning - uses film strips for overhead projection or film loops to enable student participation in completion of sentences
Inventor: SCHRIEVER ERHARD
IPC: G09B1/00
Filed: 1975-10-21
Abstract: General methods are presented for the use of various visual aids for teaching a variety of courses, but esp. languages, in such a way that the material may be suited to either lectured courses or self-learning. A series of film strips may be established for different aspects of grammar. For example the various forms of a verb m ay be tabulated in incomplete form on a film frame suitable for use with an overhead projector. The student is supplied with a paper copy and is requested to complete the table. Similar versions may be adapted for film loops and produced in a form suited to the teaching of those with poor eyesight.
Patent DE-2547465-A1 (DE)
Title: Protection for transistorised HT ignition - has electronic protection switch to prevent unwanted spark if ignition is switched off
Inventor: SOEHNER GERHARD DIPL ING
IPC: F02P3/08
Filed: 1975-10-23
Abstract: The control thyristor is protected by an electronic protection switch in the event of the ignition switch becoming open when the contact points are closed. The electronic protection switch consists of an auxiliary thyristor whose anode is connected to the regulator transistor collector via a resistance and whose cathode is connected to the control thyristor electrode. The positive contact breaker point is connected by a first resistance leading to the auxiliary thyristor regulator electrode and a second resistance leading to the negative side of the contact breaker.
Patent DE-2549553-A1 (DE)
Title: Cladding panel with form of double glazed window - has gas filled gap between transparent and opaque sheets in surrounding frame
Inventor: GROTH ROLF DIPL PHYS DR
IPC: E06B3/67
Filed: 1975-11-05
Abstract: The gap between the transparent and opaque sheets comprising the panel is narrow enough, at most five millimetres, for the solar heat absorbed by the opaque sheet to be conducted from the most part to the transparent sheet. Where the panel is fitted between double-glazed windows the first, transparent sheet faces the outside of the building. The second, opaque sheet faces the inside of the building and is coloured. A heat-reflecting layer is applied to the surfaces of the first and second sheets facing the inner space. The first and/or second sheets may be made of glass silicate.
Patent DE-2552043-A1 (DE)
Title: Directional aerial system - consists of curved aerial rods whose length is greater than half wavelength
Inventor: MEINKE HANS HEINRICH PROF DR
IPC: H01Q9/04
Filed: 1975-11-20
Abstract: Each rod in the aerial system is so bent, that it lies in a plane pointing in the main radiation direction, of the aerial system. The rod is mounted in such a way that at least three rod sections (1-3) are vertical. Sections (5) between the vertical sections run in the main radiation direction. The aerial rod supply point is at its end farthest back in the radiation direction. This end may be the bottom part of the rod or the centre part of a double rod arrangement. All curves in the rod are of comparatively large radius.
Patent DE-2557340-A1 (DE)
Title: Coded TDM signal transmission system - is used for network with large number of branching points with each station connected to each wire
Inventor: HERZIG WOLFGANG DIPL ING
IPC: H04J13/00
Filed: 1975-12-19
Abstract: Individual subscribers (2) are connected to the network through an outgoing and an incoming line along the network branches. The connection is performed by the multiple access method. The outgoing and incoming lines each consist of M separate wires. Each subscriber station is connected to each separate wire in the outgoing and incoming line, and each signal bit from a subscriber station is represented by a codeword corresponding to a subscriber address. Its individual bits are distributed over the M wires.
Patent DE-2557671-A1 (DE)
Title: Control system for electrically operated shutters - with control signals supplied via ring circuit to motor control units
Inventor: BOETTCHER REINHARD
IPC: H02P23/24
Filed: 1975-12-20
Abstract: The control system is used for a number of motors, each controlling a respective jalousie or shutter in a building, with a control unit for each motor. Control signals representing the required shutter setting are supplied to each control unit or group of control units via a ring circuit. A single ring conductor is employed, with two different commands supplied via respective wires of the latter, the mains voltage also being used as the signal voltage. Two anti-parallel rectifiers can be connected across these wires, with each control unit having two similar rectifiers, associated with relays, for controlling the direction of rotation of the respective motor.
Patent DE-2557926-A1 (DE)
Title: Optical wavelength varying device - uses fluid in transparent envelope of variable thickness with sides adjustable by pressure
Inventor: DURST PAUL J DIPL PHYS
IPC: G02B1/06
Filed: 1975-12-22
Abstract: The optical device, for varying the wavelength of the beam of light in stages, uses a transparent envelope containing a liquid (3). The distance between the sides (1,4) of the envelope is adjustable to alter the variation in the wavelength, which is dependent on the thickness of the liquid layer. Pref. one part of the envelope forms an elastic liquid reservoir (2) to accommodate the volume variations caused by varying the thickness of the envelope. These variations in the distance between the walls (1,4) of the envelope may be effected by external hydraulic control cylinders with movable dies (5) which may be transparent and sandwiching the liquid envelope. The wavelength variation may be obtained by a number of liquid envelopes in series.
Patent DE-2608710-A1 (DE)
Title: Continuous carbon monoxide gas laser - has coolant container of foamed polystyrene with discharge tube inserted in hermetic bushings
Inventor: URBAN WOLFGANG PROF DR
IPC: H01S3/041
Filed: 1976-03-03
Abstract: The continuously operating gas laser uses carbon monoxide as laser medium and has a resonator with a cooling device for the gas discharge tube. The coolant container is of formed polystyrene with bushing for hermetically sealed insertion of the discharge tube. Pref. a stirrer for the coolant is provided in the container. Between the gas discharge tube and the container bushings may be provided a seal, typically in the form of bellows. The gas discharge tube is brought out via the bushings with a vacuum-tight container on each side which carries simultaneously the electrode the Brewster windows and the gas inlet and outlet branches.
Patent DE-2611328-A1 (DE)
Title: Cord operated roller shutter activating mechanism - has free cord end forming suspended loop at case outlet and clamp
Inventor: MENNINGEN GERHARD
IPC: E06B9/78
Filed: 1976-03-17
Abstract: The mechanism for roller shutter operation, esp. suitable for mounting on small windows, involves a draw cord, with a shutter case containing a spindle and drive roller, cord outlet opening, and a clamp device for the cord activating line. The clamp device (12) is mounted on the roller shutter case (2), and the free end of the cord (6b) is attached in the area of the outlet opening (11),forming a freely suspended loop (6c). The end is pref. fastened to the case. The clamp device can incorporate a base piece (13) supporting a swivelling clamping socket (14), the cord end being attached to the base piece. The clamp device may be fitted to any of the sides of the case, and can be applied to windows with small soffit depth, or without soffit.
Patent DE-2613933-A1 (DE)
Title: Non-crumbling crayon - comprises low pressure polyethylene or propylene, low mol. wt. polyethylene, waxes, colourants and fillers
Inventor: LOCKE REGINALD HAMPDEN
IPC: C09D13/00
Filed: 1976-04-01
Abstract: Crayons consists of a mixt. of polyolefins, waxes, colouring materials and fillers. The polyolefins consists of a mixt. of low press polyethylene or polypropylene with low mol. wt. polyethylene, pref. of mol. wt. 10,000. A pref. compsn. consists of 22-30 pts. wt. low pressure polyethylene; 6-18 pts. wt. low mol. wt. polyethylene; 15-30 pts. wt. wax; 20-30 pts. wt. filler and 8-15 pts. wt. pigment. The crayons do not crumble or shred in use.
Patent DE-2614555-A1 (DE)
Title: Movement compensated wide span window - has inverted U-profiles above and below pane movably holding bars and glazing
Inventor: KURZ ROLF
IPC: E06B1/36
Filed: 1976-04-03
Abstract: The continuous window of the wide-span type, is assembled from prefabricated components with non-rigid connections. It absorbs sagging tendencies at the lintel elastically, and prevents damage resulting from intrinsic weight, loading, settlement, vibration or heat expansion in the glazing. Hollow U-shaped sections (1, 13) are fitted both at the lintel (2) and at the breastwork, open downwards and shaped for movable accommodation of window bars and glazing. These extend in a unitary configuration over the whole width of the opening provided for the window length, and the vertical bars (6) can be inserted between them at whatever intervals may be desired. The vertical bars can be inserted in the top section with room for play, while securely mounted in the bottom section by their own weight and the glazing weight.
Patent DE-2619920-A1 (DE)
Title: Clamping unit to fasten and link cables - has strip put on brackets and covering cables, with elastic lip pressing onto surface of cables
Inventor: MAGNUSSON ALF B
IPC: F16L3/223
Filed: 1976-05-05
Abstract: The clamp consists of one or several parts for fastening on a support, and of at least one holding element extending over the one or several fastening parts and covering a number of cables. The fastening part(s) consists of a bracket (1), and the holding element consists of a strip (7) put on the brackets and covering the cables (3). The strip (7) has at least one deformable lip facing the cables, so shaped that when the unit is assembled it is in contact with the cables. The main unit of the bracket is a U-shaped component (7) with a bridge and two flanges.
Patent DE-2627357-A1 (DE)
Title: Temp. monitor with thermal insulation of reference resistor - has bridge, signalling circuit with differential amplifier and warning unit with thyristor
Inventor: BERING GERHARD ING GRAD
IPC: G01K3/00
Filed: 1976-06-18
Abstract: The temp. monitor includes a bridge circuit. The measuring arm features a n.t.c. resistance, while the reference arm exhibits a thermally insulated resistance with a temp. coefficient similar to that of the measuring resistance. The resistance branch (10) of the bridge is formed by resistors (R11 and 12) in series with measuring resistance (R21) and a relatively small fixed resistance (R22). The supply diagonal (AB) also features an ohmic resistance (R30) in branch (30) and a reference resistance (R41) with fixed resistance (R42) forming reference branch (40). The signalling circuit comprises a differential amplifier with transistors (T1 and T2) and a warning unit with thyristor (Th).
Patent DE-2629316-A1 (DE)
Title: Lipstick holder with spirally grooved grip socket - and rotating sleeve part of which has two longitudinal slits
Inventor: WINTER CHRISTIAN DIPL ING
IPC: A45D40/06
Filed: 1976-06-30
Abstract: The lipstick holder consist of a grip socket (1) on the inside of which are two spiral grooves (4', 4") and an opening (5) in the bottom around which is a flange (7) pointing inwards. The flange (7) fits into an annular groove (8) on the back, pref, sealed end (9) of a rotating sleeve (2) which has part (2') with an unbroken casing, and another part (2") with two lengthwise slits (10', 10") in. The rotating sleeve is inserted into the grip socket (1). A cup part (3) consists of a socket in the top of which is an intermediate base (11) which with the slide (3') above it takes the lip stick. At the lower end of the side (3") is a cavity (6) and two radially outward projecting projections (14', 14") which fit into the lengthwise slits (10'10") and into the spiral grooves (4'4").
Patent DE-2631069-A1 (DE)
Title: Gas flow laser with high output - uses mixing chamber for laser gas medium which is supplied to gas discharge vessel via pipe loop
Inventor: POEHLER MANFRED DIPL PHYS
IPC: H01S3/223
Filed: 1976-07-09
Abstract: The high output of the gas laser which contains a mixture of carbon dioxide, nitrogen, helium and hydrogen, is maintained by a combination of steps. In the gas mixing chamber a turbulence provides the laser gas mixture from crude helium, contaminated with nitrogen, carbon dioxide, nitrogen and hydrogen. This mixture is delivered to an operating gas container and supplied into the gas discharge chamber of the laser tube via a mixing vessel and a pipe loop. Preferably additional filter aif is added to the turbulence in the gas mixing chamber. The laser gas composition may contain 82 to 75% crude helium, 8 to 7, 5% carbon dioxide, 9 to 12% nitrogen, 2 to 1.8% hydrogen, and 3.7% of filtered air.
Patent DE-2632585-A1 (DE)
Title: Single phase reactor transformer - has in=line magnetic columns and yokes made of wound bands to reduce vibration and noise
Inventor: CASPER WILLIAM DIPL ING
IPC: H01F27/33
Filed: 1976-07-20
Abstract: The single phase reactor transformer has two inline magnetic columns with longitudinal air gaps, windings and interconnecting end yokes. The yokes (3, 4) are made of bands wound about axes separated by the same distance that separates the two columns (1, 2). The height of each winding (dependent on the width of the band) is greater in the centre (7, 8) covering the corresponding column that at the edge (5, 6) covering the transformer windings (9, 10). Yokes and columns are held together by bolts (13, 14). The construction reduces vibration and noise and allows the whole yokq to be made in one piece.
Patent DE-2636371-A1 (DE)
Title: Continuous freezing system for food stuffs - has fluidised bed system employing polyethylene granules and evaporator pipe system
Inventor: DITSCHEV STEFAN PETROV DIPL IN
IPC: F25D13/06
Filed: 1976-08-12
Abstract: Device for continuous freezing of foodstuffs, in partic. poultry has a heat insulated casing construction (13) with a fluidised bed chamber (1) which is filled with a layer of granulated polyethylene material (3). The upper section of the fluidised bed chamber (1) has a conveyor and the lower section a perforated lattice or grid (2) mounted within it respectively. The natural heat exchange surface of a tubular evaporator device (4) passes over the perforated grid (2), and an additional section of the evaporator is situated below the grid (2).
Patent DE-2639246-A1 (DE)
Title: Acoustic type lens unit - has converters emitting ultrasonic waves fixed directly to lens surface concentrating them
Inventor: ANDERSON WESTON ARTHUR
IPC: G01S15/89
Filed: 1976-03-06
Abstract: The unit is particularly for investigation of the organs of the human body, and comprises a number of converters (31) which are caused to emit ultrasonic waves, and a lens (40) concentrates the waves. The converters are fixed to a surface of the lens, so as to transmit the waves directly into it. The converters can be mounted in rows running in two directions on the lens surface, and one set of them can be selectively used to emit waves in the desired direction. The lens surface to which they are fixed can be convex, and its other surface concave, each centred on a common point.
Patent DE-2640306-A1 (DE)
Title: Combined spacer and spring washer for screw fastening - comprises bush having flange in form of dish spring to prevent crushing of components
Inventor: PFEIFFER KLAUS
IPC: F16B43/00
Filed: 1976-09-08
Abstract: The combined spacer and spring washer for screw fastening comprises a bush (4) which is placed over a screw (3) to limit the penetration into a component (1) having a nut thread. This provides a fixed distance between the screw head and the component and allows free rotation e.g. of a lever or belt mounted (2) on the bush. The bush has an integral flange (5) which is in the form of a dish spring so that the rim fo the flange presses resiliently on the lever or belt mounting and avoids rattle. The flange may be star-shaped to allow for spreading of its circumference.
Patent DE-2642002-A1 (DE)
Title: Machine for measured mixing of powdery goods - has beams performing equally long and differently large rotating movement
Inventor: GEROLDINGER WALTER ING
IPC: B65G65/48
Filed: 1976-09-17
Abstract: The machine for measured discharge and mixing of powdery and fine gradual goods from silo cells includes beams carrying out a rotating movement of an equal length but of a different size. During the rotating movement the gap created between the tipping beams is less than 2mm. The beams consist of profiled tubes of different materials and are fitted with welded on ends. The drive for the beams is so arranged that, after switching off, they are locked in a middle position independently of the discharge output. The beams are supported by hinge bearings.
Patent DE-2642578-A1 (DE)
Title: Solar energy collector that follows the sun - has cylindrical lenses focussed on its water pipes
Inventor: WERNER HELMUT
IPC: F24S23/30
Filed: 1976-09-22
Abstract: Solar energy collector follows the sun and has convex-cylindrical lenses of glass or plastic focussed on its heat-absorbing pipes. The lenses may lie under the collector's cover plate, or they may replace it. Each heat-absorbing pipe pref. lies in a groove with mirror surfaces, which reflect back to it any heat it emits. The lower part of the collector's frame is pref. fitted with a universal joint, with which the angle of the collector to the horizontal can be adjusted, and on which it turns to follow the sun, pref. about an axis that passes through its centre of gravity.
Patent DE-2643943-A1 (DE)
Title: Adjustable splitter for monochromatic light - with linear scale provided by two meshed cams rotating prism support platform
Inventor: TSUNAZAWA YOSHIO
IPC: G01J3/06
Filed: 1976-09-29
Abstract: The adjustable beam splitter for monochromatic light sources is designed to vary the wavelength in conjunction with a linear scale over the entire working range of wavelengths. Light from the source passes through an aperture (S1) to a plane mirror (M1) and concave mirror (M2) to the splitter prism (10). The prism is mounted on a rotating platform moved by a lever (13) to which are attached cam followers (14, 15). The innermost follower runs over the profile of a large cam to cover the 400 to 3000 nm wavelength range. The cam has a notch which allows the second follower wheel to come into operation in conjunction with a second, smaller cam (18) covering the 180 to 400 nm range. Both cams carry toothed wheels (20, 21) which are in constant mesh with each other.
Patent DE-2644101-A1 (DE)
Title: Transducer measurement system with differential pneumatic amplifier - uses two oppositely phased intermediate signals for error reduction
Inventor: SCHMID EBERHARD DIPL PHYS DR
IPC: G01D5/42
Filed: 1976-09-30
Abstract: A device for determination of a measurement value has a transducer producing an intermediate signal characteristic of the measured parameter and inputs it to a pneumatic amplifier. The amplifier produces an output signal delayed relative to the intermediate signal. The device is designed to reduce asymmetrically magnified output signals when the intermediate signal is subject to HF, periodic, and/or statistically varying oscillations and to reduce null point drift experienced with slowly varying physical parameters. The transducer produces two intermediate signals of opposite phase which are input to a differential pneumatic amplifier whose output is proportional to the intermediate signal difference and corresponds to the average measurement value when the intermediate signals are of equal magnitude.