baber/WOPTO huggingface dataset:
Patent DE-2508339-A1 (DE)
Title: Hollow cylindrical type solar cell - in which complicated assembly of lenses and mirrors is eliminated
Inventor: KELLER ARNOLD DR
IPC: F24S10/50
Filed: 1975-02-26
Abstract: Solar cell comprises a hollow cylinder (1) which is closed at both ends and either evacuated or filled with gas of low heat conductivity, and housed in the cylinder a flat hollow absorption body (5) through which flows a heat-conducting medium. The absorption part comprises a glass body with absorption means, and with a width (B) only slightly less than the inner dia. (D) of the cylinder (e.g. B = 4/5 D). The absorption means comprises a coating (6) which absorbs solar radiation but emits IR radiation, and which is applied to the outside wall of the glass body or to the inside wall of a body which transmits IR radiation. The drawing also shows a glass base (4) which includes inlet and outlet openings (2, 3) and which rigidly connects the cylinder to the absorption body.
Patent DE-2513070-A1 (DE)
Title: Facing-concrete ceiling bay formwork unit - is airtight with elastically resilient cover and upwards open top air passages
Inventor: DOLD ERWIN
IPC: E04G11/46
Filed: 1975-03-25
Abstract: The concreting formwork unit is for use in the construction of ceiling bays esp. those made of facing concrete, and pref. with an upwards-tapered cross-section. The covering (3) of the formwork unit (1) is made in a fairly elastically resilient form, and in the area of this covering there is an air passage (6) or more than one, opening out on the upper side unit (1) is essentially air-tight. Its side walls (3, 7) may be serrated along their edges (4), and may be made of veneered wooden bars, while the covering is of plywood. There may be a peripheral reinforcing frame inside the open edge, and reinforcing, overlapping pieces of sheet (5) in the area of the outer edges. This can be quickly and easily dismantled after concreting.
Patent DE-2514186-A1 (DE)
Title: Tractor attachment marking treated ground areas - has discs on arms folding to vert retracted positions
Inventor: LEVESQUE GUY
IPC: A01B69/02
Filed: 1975-04-01
Abstract: A frame (1) fixed to the front of the tractor carries an arm (18, 20) each side pivoting on the frame and having, at its other end, an extension piece (46, 46a). Each extension is pivoted about the main arm and, in turn, carries a disc (48, 48a). In the non-working position, the arms are held vertically by hydraulic rams (22, 24, 33, 34) each capable of being operated separately; the extensions being folded back against each arm. In use, the rams are retracted and the arms drop to the horizontal. A fixed length cable (60, 61, 65, 60a, 61s, 65a) then automatically pulls the extension piece out straight and the disc marks a furrow in the soil.
Patent DE-2517148-A1 (DE)
Title: Oxide catalyst for methacrolein oxidn. to methacrylic acid - contains molybdenum, phosphorus, tungsten, oxygen and other metals
Inventor: SHIRAISHI TATSUO
IPC: B01J27/195
Filed: 1975-04-18
Abstract: Oxide catalyst of formula Mo12PAXbYcWdOe (1) where X is V and/or Nv and/or Ta and Y is Cs and/or K and/or Ti, a is 0.1 to 10, b is 0.1 to 10, c is 0.1 to 8, d is 0 to 10, value of e depends on valency of remaining atoms and a+b+ c is 0.3 to 20) is prepd. by mixing a soln. or suspension of a V- and/or Nb-and/or Ta cpd. with a Cs- and/or K- and/or Tl cpd. with a P-, W- and Mocpd., evaporating the compsn. to dryness. opt. after mixing with a standard carrier, pref. SiO2 gel, silicc acid sol, Al2O3, SiO2-Al2O3, SiC, kieselguhr or TiO2, and calcining in air. Used for methacrylic acid prepn. by gas-phase methacrolein oxidn. with O2 or O2-contg. gases. Catalyst is selective and highly active.
Patent DE-2524302-A1 (DE)
Title: Building central heating plant - includes automatic preset regulating valve in flow line
Inventor: RAUFENBARTH FRANZ DIPL PHYS
IPC: F24D10/00
Filed: 1975-06-02
Abstract: Regulating device for building central heating plant, in which the heat transfer medium flow through flow and return lines is controlled by an automatic regulated valve, the temperature of the return flow is increased by addition of supply from the flow line, the control valve operating in response to internal and ambient temperature, alters temperature of the boiler circulating medium, in the same sense as the amount of heat in, or flowing into the circulating system in relation to the feed flow valve within a defined temperature region.
Patent DE-2527362-A1 (DE)
Title: Wide angle wing mirror - has two mirror angled by plastic wedge and secured to original mirror
Inventor: SIEBENEICHER HANS-PETER
IPC: B60R1/08
Filed: 1975-06-19
Abstract: The existing wing mirror glass is removed and the improved wing mirror fitted. This has two separate mirror surfaces, with a larger mirror (2) for normal driving view and a small mirror (21) for viewing the dead spot. The second mirror is angled to the mirror housing using a plastic wedge (5) stuck between the mirror and the housing. A profiled lip (6) is between the adjacent edges of the mirror for accurate location. The mirrors are glued into the housing and are thus a simple conversion as the mirror housing and mounting foot are retained.
Patent DE-2527687-A1 (DE)
Title: Push-button switch with two contact rockers - has specified location of one rocker pivotal axis, both rockers having common actuator
Inventor: KRUEGER FRITZ
IPC: H01H13/20
Filed: 1975-06-21
Abstract: The two contact rockers are mounted in parallel in a housing socket. They are each actuated by a switching element, controlled via a switching cam on one contact rocker. The latter is spring-loaded and swivalbe via an actuating element. The swivelling axis (23) of one contact rocker (17) is allocated to the free end region of the other rocker, the two rockers being controlled by a common actuating element (10). Preferably the rockers are of angular shape, one shank (22) containing the swivelling axis, while the other shank (24) carries the switching cam (25).
Patent DE-2537252-A1 (DE)
Title: Overcurrent and short circuit protection - has insulating protrusion of specified dimensions next to fuse with passage for gases
Inventor: WOLF JOHANN DIPL ING
IPC: H01H85/42
Filed: 1975-08-21
Abstract: The protective circuit breaker has a quenching chamber containing a fuse wh ich generates a light arc on blowing. Next to th fuse (2) is fitted a protrusion (16) of an insulator (18), whose surface facing the fuse is smaller than a surface away from the same. The protrusion has at least one th rough aperture (22) for gases heated by the light arc. The protrusion is movable in the direction opposing that of the gas propagation. Preferably next to the fuse is provided a wall part (18) of the quenching chamber (8), which is material emitting a gas at an increased temperature. The end of the protrusion may match the profile of the chamber wall part.
Patent DE-2538321-A1 (DE)
Title: Infinitely variable bicycle gear - with hub and drive shaft moved radially to alter relation of internal drive components
Inventor: HARRIS TREVOR LEE
IPC: B62M1/24
Filed: 1975-08-26
Abstract: The bicycle hub (27) rotates in the frame about a fixed axis. An internal drive shaft (65) is adjusted by the gear change control to turn about a second axis so that the hub and shaft can move relative to each other with a radial component. The drive between the shaft and the hub is by a one way clutch and a variable gearing. The system dispenses with complex chain transfer between adjacent sprocket wheels or with a complex epicyclic hub gear. It provides a smooth torque control to suit all types of road conditions. The hub is sealed by a resilient bellows fitted over the movable shaft. A lever and pulley drive may be used to replace chain.
Patent DE-2539084-A1 (DE)
Title: Engine with reciprocating tumbling piston - is fitted with piston steadying arrangements to reduce partition:seal loading
Inventor: REIS FRITZ
IPC: F01C9/00
Filed: 1975-09-03
Abstract: The engine with a reciprocating, tumbling, piston has a shallow guide rail (15) projecting into the (spherical) working chamber (2), diametrically opposite the partition (10) separating the inlet and outlet sides of the chamber. Peripherally the rail extends to within a short distance of the conical projections (26) into the chamber against which the piston (3) seals, the gap (31) preventing hydraulic lock. A cylindrical insertion (16) in the piston, with a slot in it, slides on the rail as the piston works, providing a steadying effect. A carrier bar (24) connects the rail to its mounting plate (37); the whole can be moved to compensate for wear. The pressure of this steadying bearing reduces the load on the partition (10) seal.
Patent DE-2539592-A1 (DE)
Title: Cardiac pacemaker testing instrument - with quartz oscillator reference for pacemaker signal frequency in comparator circuit
Inventor: STEMPLE GUENTER
IPC: A61N1/08
Filed: 1975-09-05
Abstract: The cardiac pacemaker testing instrument has the cycle of the pacemaker signal preset frequency compared in a comparator circuit to one of predetermined reference duration from a quartz oscillator. An alarm signal is generated on indicator when a deviation beyond a certain tolerance occurs. The pacemaker signal input is inductive or galvanic and the signal is transformed into a test impulse in a pulse shaper circuit. The reference duration is given by a digital counter coupled to the quartz oscillator with the counter reset by the test impulse. The instrument permits precise monitoring of the pacemaker over a long period of time.
Patent DE-2540984-A1 (DE)
Title: Appts. altering refractive index of interferometer arm - has second or comparison beam passed to reference mirror while first beam returns to splitter
Inventor: KAULE WALTER DIPL ING
IPC: G01D5/26
Filed: 1975-09-13
Abstract: The optical length of path of an interferometer arm is changed in interference measurements of relatively short lengths or length changes, by changing the refractive index of the light guiding medium. The refractive index is changed by changing the pressure of this medium. The path of light to be regulated in a recipient is transferred and the internal pressure is changed. Monochromatic light (1) is divided by the beam splitter (2). The first or measuring beam (3) is passed to a mirror (5) and returned to the beam splitter (2). The second or comparison beam (4) is passed to a reference mirror (6) and returned.
Patent DE-2550667-A1 (DE)
Title: Screen prodn. for stereo image CRT - uses polarisation foil coated with photolacquer, processed and covered with second polarisation foil
Inventor: BERGER HERMANN DIPL ING DR
IPC: H01J31/22
Filed: 1975-11-12
Abstract: The CRT is applicable for stereoscopic display of black-and-white or colour images. The inner surface of the screen glass plate is first coated with a polarisation foil, using a suitable adhesive. This foil is then coated with a photolacquer and exposed by actinic light through an exposure mask. If the CRT is of the shadow mask type the colour selection electrode may be used for this purpose. The exposed parts of the first foil are removed or etched. Then a second polarisation foil is adhered onto the first line with a 90 deg. shift of its polarisation direction. The used adhesive must be resistant to the solvent or etchant. After a coating with a photolacquer and actinic exposure from different position, the exposed parts are dissolved or etched. This is followed by application of a transparent foil and phosphor coating.
Patent DE-2551828-A1 (DE)
Title: Single phase stepper motor for clock drive - has L-shaped stator poles ensuring constant direction of rotation
Inventor: MUTTER AUGUST ING GRAD
IPC: G04C13/11
Filed: 1975-11-19
Abstract: The motor is driven from a single phase or pulsed dc supply at a frequency to suit the drive requirements. It has a multipole permanent magnet rotor a stator with a corresponding number of poles. These take the form of L-shaped projections from each side of the housing (4, 5), the long limb (18, 19) joining with the housing and the short one (24) lying on the centre line (17) of the rotor poles and extending against the direction of rotation (25). The flux concentration achieved by this geometry ensures that, when excited, the direction of rotation is always the same, and when excitation is removed, that there is a minimum os oscillation before the rotor settles in an equilibrium position. The wear on the associated gears is thereby reduced.
Patent DE-2552762-A1 (DE)
Title: Intruder resistant external roller shutter locking device - with gravity activated latch in sloping guideway through housing
Inventor: KOCH OTTO
IPC: E06B9/80
Filed: 1975-11-25
Abstract: Safety device prevents unwarranted raising of a roller shutter mounted on the outside of a window or door, usually esp. easily rolled up if it is of the lightweight plastic type. For this purpose an oblique guideway (2) is fitted, open at both ends, set in a housing (1) and crossing through the entire height of this. Inside the guideway there is a latch (3), which can be freely displaced by the force of gravity, with a free axial movement. The length of this exceeds that of the guideway. The latch course in the guideway may be limited. Arrangement can be fitted to existing roller shutters,. as well as to new ones, and is easily manipulated, taking effect automatically.
Patent DE-2553811-A1 (DE)
Title: Machine readable data carrier esp. entrance pass - with invisible markings which are difficult to counterfeit and needing infra red light to interpret
Inventor: HOPT RUDOLF
IPC: G07D7/00
Filed: 1975-11-29
Abstract: A machine-readable data carrier, such as an entrance pass used to gain access to restricted-entry buildings, has at least two sets of markings, at least one of which is not detectable by the human senses. The two sets of markings may be in the same or different areas of the carrier. Pref. at least one set of markings can be detected by means of infra red radiation. The fact that one set of markings cannot be seen or felt means that it would be very difficult to produce a counterfeit pass without keeping the authentic pass for a long period to time, during which its absence would be noticed by the owner.
Patent DE-2557672-A1 (DE)
Title: Electrosphygmomanometer with sprung bellows - has moving string pen to record arterial pressure variations transmitted through contact plate
Inventor: GHIGINI RINO
IPC: A61B5/022
Filed: 1975-12-20
Abstract: The electro sphygmomanometer has an elasticated bellows body which operates with a reinforcement spring. This system absorbs pressure loading which is transported by means of a loop moving string type writing system into a rotational motion transmitted to a paper quadrant section. Graphical representation of the arterial pressures present which are exerted on the support plate are then transposed onto the paper quadrant. The impulses so recorded are those of the sphygmic external wave function.
Patent DE-2557976-A1 (DE)
Title: Collapsible tubular frame shopping trolley - with hinged frames on castors supporting flexible shopping bag and openable with scissors action
Inventor: SELL KLAUS
IPC: B62B3/02
Filed: 1975-12-22
Abstract: The collapsible shopping trolley has two main frames (1, 6) pivotted by a middle joint to open out scissors fashion, with the amount of opening being controlled by hinged stays. The frames are braced by cross struts bolted through the side frames and secured by nuts (4). One frame (1) is extended upwards into a handgrip (30) and carries fixed wheels (11) at the bottom. The other frame is lower and carries swivel castors (14) for steering control. A flexible shopping bag (23) is slung from the horizontal stays (24) clipped to the top of the trolley. The trolley is light and is easily collapsed for storage in a car boot, or for carrying. The cross struts are located in holes on the inside faces of the frame and are braced against the outside walls of the tubular frame by internal stays.
Patent DE-2558070-A1 (DE)
Title: Plug connector with contact carrying front part - uses bayonet coupling to connect contact part to housing
Inventor: WOLF ERICH DR
IPC: H01R13/502
Filed: 1975-12-22
Abstract: The plug connector is intended for couplings and apparatus sockets and has a front part carrying the contact insert. The front part (1) is connectable to a housing (7) by a bayonet coupling (6,8). Preferably between the housing and the front part is inserted a further coupling as a safeguard against rotation of the bayonet coupling. The additional coupling may have a tangential grip on the bayonet coupling, possibly in the form of a threaded union. On the front part and the housing may be a protrusion through which the threaded union is inserted.
Patent DE-2558376-A1 (DE)
Title: 4 Stroke IC vehicle engine - has rotor, radial blades using centrifugal force to assist gas flow, and valve gear in centre of engine
Inventor: ESSEL DIETER
IPC: F02B53/02
Filed: 1975-12-23
Abstract: Engine has a cylindrical bore casing containing a C-section cylindrical rotor with a hollow shaft, eccentric in the casing, projecting from one end. Rectangular blades, hinge-mounted in the rotor periphery, project through trunnion-type seals into recesses in the casing, create 4 working spaces between rotor and casing which vary in size as the former rotates. Each working space has inlet and exhaust valves. The former are radially inside the working spaces and the latter outside so that centrifugal forces assist the gas flow. Both are actuated by cam surfaces on a casing spigot projecting into the hollow centre of the rotor, the exhaust valves via pushrods. Valve and ignition timing is obtained from the main shaft, using gearing; this also serves as inlet duct for the combustion mixture. The latter also provides cooling, flowing along the inside surface of the rotor which on the outside is partially immersed in the lubricant.
Patent DE-2601877-A1 (DE)
Title: Rotary adjustable grill spit - has cylindrical cage with sliding bearing and lock bolt at one end
Inventor: SCHOETENSACK HANS GUENTER
IPC: A47J37/04
Filed: 1976-01-20
Abstract: The spit is for attaching meat, venison or poultry to a grill. The grill spit used for the attachment device may be inserted into two bearings located opposite to each other with a co-ordinated heat source operated by either gas, coal or electricity. A rotary grill cage (3) is positioned on the central grill spit, and the grill cage is length adjustable. The grill cage (3) consists of two spoked wheels (4), adjustable or fixable on the grill rod. The rims (8) of the wheels carry rods (13) extending parallel to the grill rod, and located at a pre-determined distance from each other. The rods have a rigid fitting in one rim, and a sliding bearing in the other.
Patent DE-2604688-A1 (DE)
Title: Magnetic hover track emergency running system - has resilient vehicle skids landing on elastic reactor rail to reduce impact jolts
Inventor: DUELL HANS-JUERGEN
IPC: E01B25/30
Filed: 1976-02-06
Abstract: The emergency running system is for a magnetic hover track, with one or more reactor rails, of T-shaped cross-section, allotted to the hover and/or track guidance magnets (3) acting in conjunction with landing skids on the vehicle (2) to serve as emergency running rail. On the reactor rail (5) the centre stem and both shanks are made in an elastic form. The skids (7, 8, 9, 10) are brought into action, vertically and/or horizontally, on at least one end of the two shanks. These shanks may be mounted horizontally above the rail centre stem. This results in an elastic resilience and effective reduction in jolting when the vehicle lands or takes off with its skids being raised or lowered, whether these act vertically or horizontally.
Patent DE-2606869-A1 (DE)
Title: Massage equipment with inner and outer components - which are joined by elastic membrane allowing lengthwise relative movement
IPC: A61H19/00
Filed: 1976-02-20
Abstract: The massage equipment comprises a soft elastic hollow body, open at the front and enclosed by an external stiffer body so as to leave a chamber between them, pressure alterations being generated in the chamber. The inner (2) and the outer (7) bodies are joined together near their for ward end by an elastic membrane (15), so that they can move in relation to each other in the lengthwise direction. Annular folds (14) can be formed in the membrane. The inner body can be shut off from the chamber (6) at the rear end (4), or open to it, and there can be an opening (9), sealed pressure-tight, at the rear end of the outer body.
Patent DE-2612815-A1 (DE)
Title: Proportional spacing symbol setting unit - uses computer to control relative movement between symbol and recording surface
Inventor: GILLOT GARY WILFRED
IPC: B41B27/00
Filed: 1976-03-25
Abstract: Symbol setting unit enables letters and numbers, for example to be proportionally spaced. It comprises a computer (1) which is connected so that it receives signals from a keyboard (3) which controls a symbol moving unit (4). The signals are registered by a signal detector (5) and the identification of the key which is operated is held in a short-time store (6). The nature of the operated key is simultaneously fed to a unit (7) which thereby determines the nature of the neighbouring symbol. The identification of the previously operated key is obtained from the store (6). The long-term store (8) is then interrogated in order to determine the correct spacing and a pertinent signal is produced through a further unit (9). This signal is then fed to a conveyor unit (10) for the recording medium which is thereby moved by the correct amount to effect the required proportional spacing.
Patent DE-2619485-A1 (DE)
Title: Chromium plated piston ring - includes tapered peripheral groove with stepped taper
Inventor: CROMWELL JOHN E
IPC: F16J9/26
Filed: 1976-05-03
Abstract: A groove is formed in the periphery of numerous piston ring blanks, a stepped taper being provided on each side of the groove leading to the running surface of the ring. The blanks are stacked on a rotatable mandrel and electroplated with Cr to fill the groove and coat the running surface. Finally part of the Cr and the running surface is removed to form a stack of piston rings contg. a stepped groove filled with Cr on their running surfaces. The rings are pref. made of iron with groove depth is not >0.165mm filled with Cr contg. >=700 cracks per inch. length.
Patent DE-2620745-A1 (DE)
Title: Airtight closable ring container - has sections of wall made from rubber and includes a reinforced cover flange
Inventor: HARTMANN EWALD
IPC: F42B3/24
Filed: 1976-05-11
Abstract: The airtight closable container wall is closed off by a cover hood the edge of which is bordered over inwards by a flange shaped edge reinforced by a metal ring. The metal ring (5) reinforcing the flange shaped edge of the cover hood is angled so that it forms a ring shaped chamber together with the bordering (2) and the adjoining walling of the container (1). The container almost wholly encloses the flexible material forming a section of the edge of the cover hood (4). The cross section of the metal ring is 'Z' shaped and is completely enclosed by the elastic material.
Patent DE-2625699-A1 (DE)
Title: IC engine internal cavities inspection device - has endoscopic viewing tube and light passes through optical fibre to illuminate cavity
Inventor: STORZ KARL
IPC: A61B1/07
Filed: 1976-06-08
Abstract: Illumination and inspection of cavities of combustion engine uses endoscopic viewing tube and light passes from light source through optical fibre to cavity. The viewing tube rotates about its longitudinal axis. The optical fibre is made of glass. In order to pass the light from the light source (1) into the endoscopic viewing tube (2), one part (3) of the optical fibre is ring-shaped. It is arranged in the proximity of the other part of the optical fibre (4) which is capable of being rotated. This ensures that during rotation, light is guided from the rotatory past to the stationary part.