baber/WOPTO huggingface dataset:
Patent DE-2717897-A1 (DE)
Title: Dowel with consecutive staged blunt conical sections - includes cylindrical foot surfaces with curvature proportional to dowel shaft
Inventor: PANNE HANS PETER
IPC: F16B13/12
Filed: 1977-04-22
Abstract: The dowel for masonry, ceilings etc., has a lengthways slotted insert end which in the direction of the longitudinal axis, has several consecutive staged, blunt conical sections. In the insert end is a cylindrical through hole. The bottom of each blunt conical section (5) is formed as a roughly cylindrical surface (6). The curvature axis of this surface (6) lies on the bottom side located away from the insert end, parallel to the plane of the lengthways slot (4) and vertical to the lengthways axis of the dowel. The radius of curvature of the cylindrical surface (6) is between twice and eight times the value of the radius of the dowel shaft (1).
Patent DE-2718944-A1 (DE)
Title: Internal combustion engine exhaust system and silencer - uses tubes with multiple bores to cool exhaust gas
Inventor: LEISTRITZ HANS KARL DR
IPC: F01N13/16
Filed: 1977-04-28
Abstract: A silencer forming part of the exhaust system of an internal combustion engine consists of two concentric tubes (51, 52). These tubes are joined by radial walls (55) which extend longitudinally so that the annular space between the tubes is divided into a number of separate compartments (5). A cooling fluid flows in these compartments (5) in the opposite direction to the flow of gas in the central bore (50). The outer wall of the outer tube (52) has a number of radial fins (56) which also extend longitudinally. These fins help to dissipate the heat which has been transferred to the cooling medium by convection and radiation.
Patent DE-2722625-A1 (DE)
Title: Swing jaw mounting for stone crushing - is supported on cross tie by pull rods kept in floating state by springs
Inventor: PICALARGA MARCELLO
IPC: B02C1/04
Filed: 1977-05-18
Abstract: The swinging jaw carrier (2) is on its upper part simply resting against the cross tie of the framework (1) and held in place by pull rods (3) which are under the tension of springs (4). The pull rods allow the swinging jaw to perform the minimum swinging movements necessary for the crushing of the stone pieces. Under neath the jaw carrier (2) a cylindrical rod (5) is fitted which takes up the weight of the swinging jaw carrier (2) as well as the downward component resulting from the crushing action. On top and below the cylindrical rod (5) two slats (6) are provided which have higher ruggedness than the frame structure in order to eliminate frictions and deformations. On the upper area of the frame structure (1) are reinforcing elements (7) fitted with bolts which are limiting contact with the end surfaces of the swinging jaw carrier.
Patent DE-2725046-A1 (DE)
Title: Thermostatic sanitary mixing valve - has spring loaded hydraulic mixing plunger enclosing mechanically operated control plunger
Inventor: MEYER HARALD ING GRAD
IPC: G05D23/13
Filed: 1977-06-03
Abstract: The thermostatic mixing valve is for sanitary use, having cold- and hot-water feed passages and a discharges passage. All passages are connected to a mixing chamber contg. a control mechanism actuated by a measuring unit in the mixed water current, and the chamber is followed by a stop valve regulating the total flow rate. The control mechanism has two plungers sliding to suit the desired temp. and spring-loaded in the same direction at one end by pressure springs. The first plunger moves in relation to the feed passages which it frees or shuts off from the mixing chamber, functioning as a mixing plunger with hydraulic actuation. It encloses the second one, which forms a mechanically-actuated control plunger which hydraulically balanced working faces, movable in relation to the first. The face incorporates a metering chamber, connected to the cold water feed passage and formed by an annular passage enclosing the control plunger, which can shut it off partly or completely.
Patent DE-2725129-A1 (DE)
Title: Surgical needle attachment device - has cylindrical tool with pegs or tongues to lock each needle head onto support
Inventor: KIRCHNER GEORG
IPC: A61B90/00
Filed: 1977-06-03
Abstract: The handling system for surgical needles employs a holder (3) which can be detached from a piece of apparatus, designed to carry three needles and which can be sterilised independently. On its base (5) are three spigots (6) for the three needles and a securing screw (7) each end. Each spigot has a locking thread (10) for the screwed end of the needle. The needles (8) are secured by a tool (2) with a knurled top (14) and a coupling (16) at the bottom. This has one half (13) at the needle head and the other at the tool (2), this tool acting as a locking key. The bottom part has a set of peg or tongue shaped engaging members to fit the holder part (13) of the needle head.
Patent DE-2728385-A1 (DE)
Title: Road surface stripping and rotary cutting machine - has screw or bolt through one of two retainer faces retaining cutters
Inventor: SMITH WYNDHAM GEORGE
IPC: B28D1/18
Filed: 1977-06-24
Abstract: At one end the cutting tool(20) is fitted with at least one hard metal plat(22, 23). The retainer incorporates a seat for the tool, in the form of two surfaces (15, 16) set vertically to each other. One of these surfaces is penetrated by a fixture element(18), such as a screw engaging the hole(21), engaging the end of the tool which is sited opposite to the end armed with the cutting plate or plates. Where there are two such plates, they may be brought alternately into an operative position relative to the retainer. This system permits easy replacement of tools.
Patent DE-2731655-A1 (DE)
Title: Piezoelectric transducer used as microphone for telephone systems - has piezoelectric disc and dummy disc on supporting aluminium plate
Inventor: BOEHME WOLFGANG DIPL PHYS
IPC: H04R17/00
Filed: 1977-07-13
Abstract: The transducer has a specified frequency response for transmission of a certain bandwidth. Its active element is in the form of a thin piezoelectric disc fastened to an aluminium plate. The piezoelectric disc (2) dia. is smaller than half the supporting plate (1) dia., and the disc (2) is placed eccentrically on the plate (1). A dummy plate (3) is provided diametrally opposite to the disc (2), with as far as possible the same density as that of the disc.
Patent DE-2733760-A1 (DE)
Title: Dielectric layer thickness measurement - uses broadband microwave pulses which are detected by horn antenna
Inventor: CASPERS FRIEDHELM
IPC: G01B15/02
Filed: 1977-07-27
Abstract: The pulse generator (1) has a rise time of less than 1 nS which generates pulses having Fourier components in the microwave region and a band-width of more than 1 GHz. The pulses are transferred by a coaxial conductor and a coaxial waveguide to a transmitting aerial (2) which may be an X-band horn antenna. The pulses are reflected by dielectric layers (D1, D2) spaced between 0.5 and 10 m from the aerial and the reflected radiation is collected by a receiving aerial (3) which may be of similar construction to that of the transmitting aerial. The radiation passes by a coaxial line to a sampling head (4) where it is periodically examined by means of an oscilloscope (5) or pen recorder to derive an indication of the thickness and dielectric properties of the layers (D1, D2).
Patent DE-2734591-A1 (DE)
Title: Toy car flashing lamp circuit - has two transistor astable multivibrator and collector for amplifier connected to light diode
Inventor: NEUHIERL HERMANN DR
IPC: A63H17/28
Filed: 1977-08-01
Abstract: A toy car travelling along a track, has a warning lamp mounted on the roof. This lamp is mounted on a circuit board so as to project through the roof. It is operated by a circuit so as to give a flashing light. The circuit includes an astable multivibrator with two transistors (Tr1, Tr2) which gives it the frequency of the flash. This is determined by a resistance capacity network (C1, C2, R2, R4). The collector of Tr2 is connected by a resistance (R6) to the amplifier transistor (Tr3). This operates the light diode (LD1). A resistor (R5) and a capacitor (C3) stabilise the voltage.
Patent DE-2737544-A1 (DE)
Title: CMOS impedance transforming amplifier - has two parallel driven CMOS FET input pairs to reduce switching losses in output CMOS fet pair
Inventor: GONAUSER ERNST DIPL ING
IPC: H03F3/18
Filed: 1977-08-19
Abstract: The CMOS output amplifier, for impedance transformation, has an input stage and a low-ohmic outputs stage each comprising two CMOS-FETs in series between the supply poles. The input stage has an additional pair of CMOSFETs also connected in series between the supply poles. The input signal (E) is applied to the gates of both input CMOS pairs. The two outputs of the two input pairs are connected one to each of the two gates of the output CMOS pair. The extra pair of CMOSFETs reduces losses in the output stage.
Patent DE-2742047-A1 (DE)
Title: Noise insulating open plan interior partition wall - comprises two independently installed shells with hollow interior pref. linked to ceiling hollow
Inventor: SCHMITT HANS-JULIUS
IPC: E04B9/00
Filed: 1977-09-19
Abstract: Partition wall is made up from two partition wall shells (10, 11) which can be independently assembled. They can be fixed to a gap (5) in the assembly ceiling (3) so that the hollow space (7) between them is linked to the hollow space (6) in the ceiling. Where their end areas penetrate into this hollow space they may be bent away from each other in a funnel shape. Without frame or reinforcing struts, noise transmission is largely eliminated.
Patent DE-2747243-A1 (DE)
Title: Diffraction grating for prodn. of colour components - has staged profile with selected peak valve for each stage
Inventor: DAMMANN HANS DR
IPC: G02B5/20
Filed: 1977-10-21
Abstract: The arrangement producing predefined spectral regions, pref. uses colour components originating from wide spectral range, active or passive radiating objects. The spectral ranges or colour components are derived from the diffractive array of a phrased grating, set at the centre of an imaging lens. The lines profile of the grating is formed from several stages. The peak of each stage is so selected that the optical pth difference produced in it is a corresponding multiple or approx. multiple of a stipulated wavelength.
Patent DE-2748999-A1 (DE)
Title: Safety device for earth moving vehicle - has brake lever to set gear in neutral and lock transmission
Inventor: VILLANI GUGLIELMO
IPC: B60J/
Filed: 1977-11-02
Abstract: The earth moving vehicle is fitted with a safety brake lever next to the gear selector lever (22) to operate the safety brakes when pulled into the raised position. The lever linkage is coupled to the gear linkage in such a way as to move the gear setting to neutral when the brake is set. A second linkage blocks the transmission. The driver only has to pull up the brake lever to secure the vehicle, with the transmission set to neutral and the brakes applied. Further interlocks prevent the ignition being operated in the braking position while the brake lever can also reset the throttle setting to 'Stop'.
Patent DE-2751355-A1 (DE)
Title: Air pollution detection at chimney opening - involves passing air from chimney through foil bag with probe, with size of its outlet opening controlled
Inventor: TIEDTKE KARL HEINZ DIPL CHEM D
IPC: G01N1/22
Filed: 1977-11-17
Abstract: Discharge air flowing from the chimney is passed through an expandable foil bag and inflates it to its fullest extent. A probe is mounted in the foil bag, and its expansion is controlled by varying the size of the outlet opening in accorance with the flow velocity and volume. After the bag has been inflated, its contents may be analysed. The roof (3) supports the measurements appts. (12) which is connected to the chimney and bag assembly by a tube (9).
Patent DE-2805096-A1 (DE)
IPC: E02D17/20
Filed: 1978-02-07
Abstract: A number of structural elements (2) with flexible tension members (7) are used to retain layers of a backfill material lying one above the other. These tension members (7) extend between a retaining part (6) and at least one anchoring part (5) embedded in backfill material (1) or to another retaining part (6) arranged on the opposite side of the structure. The tension members (7) run smoothly through the backfill (1) with little friction and thus remain largely unaffected by the inner stresses occurring in this backfill and by soil movements caused by stress. The layers of the structure are restrained and held together completely independently of one another by the soil pressure acting on the retaining parts (6) on the one side and on the anchoring parts (5) or the retaining parts (6) arranged opposite. <IMAGE>
Patent DE-2808912-A1 (DE)
Title: Anticorrosive coating for galvanised or aluminised steel pipes - is duromeric, allyl-etherified, conductive stovable polymer contg. aluminium-pigment
Inventor: VAHLBRAUK KARL HEINZ
IPC: B05D7/16
Filed: 1978-03-02
Abstract: Galvanised or aluminised steel pipes are protected against corrosion by coating them with a duromeric allyl-etherified, conductive prepolymer contg. a scale- or flake-forming Al-pigment. The corresp. conductive polymer is produced by subsequent stoving. It is composed of cyclic structures arranged, ladder fashion, in chains. Its elemental analysis reveals 73% C, 19.9% O and 7.1% H, complemented by macro-molecular allylether gps. Application is by immersing the pipes into an emulsion of the allyl-etherified prepolymer, contg. the Al-pigment and a solvent with high b.pt.
Patent DE-2813356-A1 (DE)
Title: Liq. filter prepn. - by partial thermal treatment of a mixt. of thermoplastic synthetic fibres and cellulose
Inventor: SCHLIPFINGER KARL DR
IPC: B01D39/16
Filed: 1978-03-28
Abstract: Filter sheets and plates for filtration of liq. consist of or contain a mixt. of cellulose fibres and filaments of thermoplastic polymer of specific surface area >1 m2/g in which at least part ( is not >20% of the total wt. of the medium) of the thermoplastic filaments on the inlet side are thermally blended. Improvement in filtration capacity, cohesion and dimension stability characteristics and obtd, compared wth prior art cellulose filters. The synthetic fibres can be selected from homo- or copolymers of olefins, e.g. ethylene, propylene, 4-Me-1-pentene, vinyl monomers, etc.
Patent DE-2814306-A1 (DE)
Title: Separator to remove data sheet from stack - has blowing devices to transfer sheets to rotating drum with connection to suction device
Inventor: MITZEL WILHELM DIPL ING
IPC: B65H3/14
Filed: 1978-03-04
Abstract: The device is for separating data media, e.g. paper sheets or documents, from a stack and has a unit which pushes one or more sheets to a device which draws them off. The pusher is designed to ensure that the drawing off device, which consists of two suction drums with a separation slot between them, can operate without additional adjusters irrespective of the sheet format. The pusher is a plate with borings supplied with blown air which moves the sheets towards the separator, and has a different flow direction for the top sheet.
Patent DE-2819581-A1 (DE)
Title: Motor vehicle lifting jack of sheet metal - has bulge on fork plates exerting slight clamping force preventing loose parts rattling
Inventor: ANELL WOLFGANG
IPC: B66F3/08
Filed: 1978-05-05
Abstract: The screw jack for motor vehicle lifting has leadscrew in a column. The load carrying parts are made of pressed sheet steel and the lead screw nut is enclosed in this housing. The screw jack can be readily returned into stowage position. The nut holding fork plates (26, 27) of the load carrier (12) have bulging parts (34) which are in contact with the supporting column (10) with slight clamping effect. The depressions formed (34) on the load carrier are arranged either below or above the level of the spindle nut (24).
Patent DE-2829521-A1 (DE)
Title: Hinge or lock fitting machine for suitcases - has height of anvil adjustable, with vertical guide cylinder secured by set-screw
IPC: B27M3/00
Filed: 1978-07-05
Abstract: The impact machine is for fitting hinges or locks to suitcases, trunks, bags or other containers of wood, leather or plastics. An adjuster for the buffer holder has a lug protruding into the connecting guideway and a coaxial setscrew. The lug (11) engages the screw (4), which is a hollow cylinder (16) with an external thread. This is screwed into the partially threaded (17) hole (12) in the guideway (2). The rest of its is led in the guideway and form-locked to the lug by the external end face (19) which does not lie close against the buffer holder (1).
Patent DE-2831154-A1 (DE)
Title: Doughnut icing applicator - with separate dip container for circulating icing from heated storage tank
Inventor: FUESSEL KARL DIPL ING
IPC: A21C15/00
Filed: 1978-07-15
Abstract: A device for the icing of pastry, e.g. doughnuts, has in the upper part of a heated storage tank for the icing an immersion container which receives a constant supply from a disc with a scraper and channel and has an overflow. The doughnuts are dipped into this container together with their transport containers. This saves the manual labour for the application of the icing. It ensures a uniform quality of the icing and recovers all surplus material.
Patent DE-2832609-A1 (DE)
Title: Friction material for force transmission - has flexible body with abrasive material or bristle embedded in its surface
Inventor: HENNIG DIETER
IPC: F16D69/02
Filed: 1978-07-22
Abstract: The friction material is used in force transmissions systems. It retains its friction characteristics even if heavily contaminated to ensure sufficiently high force component at right angles to the contact pressure force. The material has a flexible base connected to a layer of harder particles whose form and size ensure contact with the microstructure of the surface roughness of the body to be lifted. Abrasive grains can be embedded into the outside zone of a flexible plate. Alternatively, bristle clusters made of metal wire or plastics can be embedded into the plate. A holding pad can be made of a holder with an elastic plate on which is placed an abrasive material sheet. with a fabric substrate.
Patent DE-2836223-A1 (DE)
Title: Brightness reference for TV video signal - has low pass filters alternated between line inputs and with outputs controlling video amp gain
Inventor: WOHINZ WOLFDIETRICH ING GRAD
IPC: H04N5/14
Filed: 1978-08-17
Abstract: The picture reference value for a TV video signal is obtained, so that it can be used for automatic brightness adjustment either between cameras or parts of the picture area. The equipment comprises two low pass filters which are switched to alternately store one line of picture signal. The outputs of the filters are also switched alternately, via voltage and adding amplifier, to the video amplifier so that the outputs of the low pass filters are effectively the background brightness level of the picture and are used to control the gain of the video amplifier.
Patent DE-2838328-A1 (DE)
Title: Transfer system for conveyors operating at different speeds - has intermediate conveyor mounted on track and driven to match other speeds
Inventor: BABUNOVIC MOMIR
IPC: B65G47/31
Filed: 1978-08-31
Abstract: The mechanism transfers containers between first and second conveyors, running at different speeds and along paths clear of each other. It comprises a third conveyor (16, 18) engaging with the containers and transferring them. The third conveyor is designed to be driven at different speeds at the start and finish, and to match its speed to the second conveyor. This drive can form a track on which speed alterations take place in a controlled manner between start and finish.
Patent DE-2838971-A1 (DE)
Title: Automatic slide change for projector - has digital processing from keyboard into microprocessor with indicators and magazine start and end control
Inventor: AUERSWALD HARRO
IPC: G03B23/00
Filed: 1978-09-07
Abstract: An automatic slide projector has a remote control. The projector has a motor-driven, magazine-fed slide changer. The slide change control uses digital signals and magazine start and end signals are incorporated to synchronise the system. A keypad control is assigned to a microprocessor which also has an indicator display, controlling the motor and slide changer's electromagnetic unit. A light and photocell circuit indicates to the microprocessor the magazine start and end positions. The microprocessor is also equipped for a tape recorder interface.
Patent DE-2843837-A1 (DE)
Title: Pocket envelope incorporated in continuous stationery - has each envelope formed of two walls glued together along three sides
Inventor: BIENBENU ARTHUR
IPC: B42D5/02
Filed: 1978-10-07
Abstract: The continuous multiple layer stationary web incorporative envelope forms, has a pocket formed by the assembly of first and second walls to provide a closing flap at the end opposite the bottom. The first wall has a transverse cut (3) extending over most of its width which provides an opening for the pocket. The second wall, whose height is greater than the distance between cut (3) and bottom (4), is glued to the first wall along its sides and along line (4) which defines the bottom of the pocket. Tear off flaps (6, 7) may be provided. There may be more than one pocket across the width of the band.
Patent DE-2847471-A1 (DE)
Title: Vibrator for separating minerals, esp. coal - has linear motors driving vibrating plate allowing easy setting of acceleration
Inventor: HUEBNER FRIEDHELM
IPC: B07B1/42
Filed: 1978-11-02
Abstract: The vibrator has an excitation system vibrating a plate and consisting of at least one electrical linear motor. In the case of two coupled oppositely-vibrating plates, two or four linear motors are employed as excitation system. The linear motors are connected directly to the plate and are pref. located beneath it. The linear motors consist of several parts and each part is controlled separately by a power controller. The inductor consists of a laminar packet in which the windings are embedded. The packet is encapsulated in plastics. The vibrator is simple, easily controlled and allows given asymmetric curves of time against displacement to be set.
Patent DE-2850647-A1 (DE)
Title: Hand shower fitting in bathroom - consists of recessed box, with pipe socket and rotatable passage with spring
Inventor: AMELN HELMUT VON
IPC: E03C1/06
Filed: 1978-11-22
Abstract: The shower fitting has a recessed box with a cover having a grip recess for the shower with an aperture for hose and water outlet. The box is connected via a pipe to an overflow pipe, and contains a pipe socket, fastened via a turnable passage onto the water connection from the taps. The connection for the hose to the shower head is fastened to the passage. The passage is pretensioned by a helical spring, so that it winds the hose onto itself. It also has a brake, to retain it in any position, which may be released by a press button, etc.
Patent DE-2853461-A1 (DE)
Title: Combined home trainer and power generator - uses large driving crank-wheel with drive chain and pedals, and normal bicycle wheel to accelerate special drive for electric generator
IPC: A63B21/005
Filed: 1978-12-11
Abstract: Home trainer pedalling machine for keep-fit purposes, has an additional facility for charging a secondary battery, during the exercise routine, for powering a t.v. receiver, or other similar electrical load. The machine comprises a large driving crank wheel (2) fitted with pedals and a drive chain (7) and a smaller cog-wheel (3). The normal commercially available bicycle wheel (1) is used to accelerate a special drive wheel arranged on the shaft of an electrical generator (4) to generate an electric current for storage in a battery (11). The stored electrical energy is recovered from the battery for the purposes of driving a t.v. receiver etc. from the plug and socket connection.