baber/WOPTO huggingface dataset:
Patent DE-2707788-A1 (DE)
Title: Ophthalmoscope for eye photography - with reflector between objective and image forming lens and may include several target surfaces
Inventor: MATSUMURA ISAO
IPC: A61B3/14
Filed: 1977-02-23
Abstract: Ophthalmoscope for observation or photography of the fundus of the eye comprises a reflective element (9) which is disposed between an objective (10) and an image-forming lens (12) for conducting light required for illuminating the fundus (Ef). A device (20, 21, 23) for guiding the line of vision of the person being tested is located within a place which is virtually in conjugate relationship to the fundus, allowing the person to observe a suitable point in this plane according to the wish of the tester. The device may be movable within its plane, consisting of a light source and transmissive plate, or it may comprise several target surfaces, with a reflector (13) between it and the reflective element.
Patent DE-2708117-A1 (DE)
Title: Warm air generating appliance such as hair dryer - has electric motor secured by radial ribs with slots for retaining band resistor
IPC: A45D20/48
Filed: 1977-02-25
Abstract: (1) The housing may be of plastic or lightweight metal and at the back is a lid (11) which can be removed. Air intake apertures (12) are in a circle on a solid base provided with an electric cable connection (14) and plug (15). The fan chamber (2) is open at both ends. An electric motor is inside the housing (20) and secured to it by ribs (23). The heating element (3) consists of a carrier composed of two trapeze-shaped plates (31) crossing one another at a central joint, thus forming 4 radial ribs of a heat resistant isolation material. The ribs radiate close to the outer wall of the housing and are provided at regular intervals with flat slots. These slots are the retaining points of the resistor band (34).
Patent DE-2712363-A1 (DE)
Title: Underground oil storage tank filling system - incorporates spring loaded excess pressure air release and test cap in filler pipe
Inventor: GOTTFRIED JOSEF ING GRAD
IPC: B65D90/34
Filed: 1977-03-22
Abstract: The filling arrangement for underground storage tanks, for heating oil, which have no air outlet lines, includes an air release system preventing excess pressure. A lifting arrangement (11) makes it possible to check if the system functions properly before filling commences. The arrangement is mounted on the tank with a screw connection (20). During filling, air can escape through a side connection (17). If air pressure builds up too quickly, a valve (6) is lifted against the force of a spring (2).
Patent DE-2712994-A1 (DE)
Title: Copper-manganese alloy filler rod - for MIG welding ferrous and non-ferrous metals (OE 15.1.78)
Inventor: SIXT PETER
IPC: B23K35/30
Filed: 1977-03-24
Abstract: The filler rod for arc welding ferrous and non-ferrous metals has the compn. (wt.%) 8.0-38.0 (14.0-38.0) Mn, 0.1-1.0 Si, 6.0-24.0 (6.0-18.0) Ni, 0.5-5.0 Fe, balance Cu, up to 5% Ni may be replaced by Co, Fe may be replaced partly by Cr, Al, Mo, Nb, W and Si, and wholly or partly by Ti, Li and Be. The filler rod may be used with 5.0-14.0% of a known Cu-Al filler rod which is molten in the liquid pool without arcing in the TIG or MIG or plasma arc welding method. For welding Cu-Ni- and Fe alloys, espec. iron castings.
Patent DE-2719166-A1 (DE)
Title: Blast furnace cooling box - made of nodular cast iron to prevent fissures forming during working life of box
Inventor: BUEHLER HANS-EUGEN DIPL ING DR
IPC: F27D1/12
Filed: 1977-04-29
Abstract: Cooling element for a metallurgical furnace is described where the coolant flows through steel tubes provided with a coating and cast in an iron box fitted with a refractory furnace lining. The iron box is made of low-alloy cast iron contg. spheroidal graphite and min. 1.8% Si. The nodular cast iron pref. contains 2.5-4.0% C, 2.1-5.3% Si, and Mg and/or Ce as spheroidising elements. The front surface of the box pref. has a row of grooves parallel with its long slide, the grooves increasing in width towards their base, and esp. having a dovetail cross-section; the grooves are used to anchor the lining. Used e.g. on a blast furnace, where the nodular iron has increased resistance to the formation of fissures as compared with conventional boxes. If fissures occur in the box, gases can reach the steel tubes, causing carburisation leading to fissures in the tubes.
Patent DE-2725438-A1 (DE)
Title: Compressed air backflushing of filter - with elastic non-return valve for greater blow efficiency
Inventor: HOELTER HEINZ
IPC: B01D46/00
Filed: 1977-06-04
Abstract: When dust filters of gases are cleaned by backflushing with compressed air introduced from the clean gas side, the compressed air pulse loses a part of its effect because the air nozzle does not fill out all the clean gas passage section. This can be eliminated by arranging around the flushing nozzle an elastic ring which normally leaves the passage fully open. When a backflushing compressed air flow is applied, this ring seals against a rim so that all the flushing air must pass through the filter to the dust laden gas side and thereby clean the filter.
Patent DE-2731769-A1 (DE)
Title: Automatic bottle labelling machine - has spring support plate moving in guide plate during clamping movement
Inventor: ELDRED PAUL JOHN
IPC: B65C9/02
Filed: 1977-07-14
Abstract: The labelling machine is partic. for bottles having a support plate against which the item (10) tobe labelled is pressed by a clamping member (25). The support plate moves in a recess in a guide plate in opposition to a spring during the clamping movement, and there are recesses at intervals along the support plate periphery, in which corresponding protrusions on the guide plate are a clearance fit. The surfaces of these protrusions towards the clamping member converge steadily in the direction away from it. The support plate for the items and the recess in the guide plate can be of the same shape, but larger than the item cross-section.
Patent DE-2731790-A1 (DE)
Title: Bearing support for spherical gas or liq. storage tank - includes ballast material made up of bodies able to roll against themselves
Inventor: FRESE ERHARD ING GRAD
IPC: B65D90/12
Filed: 1977-07-14
Abstract: A spherical tank sits on part of its external surface on a support that is made up of ballast material. This material, usually made up of glass, plastic or metal spherical or cylindrical shaped bodies, takes up the form of the surface it is supporting. The bodies making up the ballast material support are between 3 and 30mm dia. and are able to roll against themselves. The ballast support is approximately 200mm. thick and a lubricant may be added to the bodies to assist the rolling movement. Used for supporting spherical gas or liq. tanks. A uniform pressure on the part of the sphere surface being supported is obtd. There is no relationship required between sphere dia. and the dia. of the bodies of the support. The support has an insulating effect when cold fluids are stored.
Patent DE-2739000-A1 (DE)
Title: Concrete pipe radial press roller head - has rollers of stepped section with smallest at top and smoothing cylinder at bottom
Inventor: KERN HORST ING GRAD
IPC: B28B21/24
Filed: 1977-08-30
Abstract: The roller head is for a radial press producing concrete pipes in a vertical tubular mould, being moved up and down on a shaft on the mould axis. It has press rollers at the top and a smoothing cylinder for the concrete mix at the bottom. Each roller (14) is of stepped section, the topmost section (18) being the smallest, while the lowermost and largest (19) determines the internal diameter of the concrete pipe (17) to be produced. The increase in step diameter can correspond to the degree of compression of the concrete mix.
Patent DE-2746688-A1 (DE)
Title: Contoured surface toilet seat - has beading to aid correct positioning to assist bowel movement preventing constipation
Inventor: PHILIPPEN DIETER P
IPC: A47K13/02
Filed: 1977-10-18
Abstract: Toilet seat is attached by the usual hinge fixture is in the shape of a ring (10) which has on the outside at the side a bead (11) forming a grip. The part between the side bead (11) and a front bead (16) curves down outwards from the inside whilst the part between the back (12) of the ring and the side bead curves down inwards from the outside. Resilient protrusions (17) can be provided at the back on the sides to produce air gaps between the skin and the surface of the seat providing ventilation.
Patent DE-2748008-A1 (DE)
Title: Pressure-operated elevator tube raising liq. metal for casting - is made of gas-permeable refractory
Inventor: BUESCHER ULRICH
IPC: B22D18/04
Filed: 1977-10-26
Abstract: A gas pressure operated elevator tube raises liq. metal for casting and is suitable for casting installations operating at low pressure. The elevator tube comprises concentric walls and in use its lower end is immersed in the molten metal. There is a gap between two of the walls which gap communicates at the upper tube end with the ambient air. The walls forming the gap are made of a non-metallic refractory material which is either gas permeable or becomes gas permeable during use. The walls are connected to each other at the lower tube end in a manner preventing ingress of metal into the gap. The elevator can be made simply and has a longer life than conventional elevators because it is made from a molten metal resistant refractory. In addition, it is relatively fracture resistant thus avoiding gas penetration through the tube walls and into the molten metal during raising of the metal.
Patent DE-2753483-A1 (DE)
Title: Heat exchanger using heat transmitting fluid - in which evaporated part of heat transmitting fluid is brought into heat exchange with second fluid
Inventor: LANG ERICH DIPL ING
IPC: F28D7/06
Filed: 1977-12-01
Abstract: The heat transfer is from one fluid to a second fluid with the aid of a heat transmitting fluid. The first fluid is brought into heat exchange with a part of the heat transmitting fluid while partly evaporating the heat transmitting fluid. The evaporated part of the heat transmitting fluid is brought into heat exchange with the second fluid. The type of fluids and their temperatures, pressures and compositions are so chosen that the heat transferring fluid partly condenses on heat exchange with the second fluid.
Patent DE-2753666-A1 (DE)
Title: Fitting for accommodating vehicle towing belt - has equidistant slots with lower parts spreading outwards and width of fitting equal to height
Inventor: KORGER HEINZ KARL ING GRAD
IPC: F16G11/14
Filed: 1977-12-02
Abstract: The fitting for towing cables or belts has a closed through aperture for the belt or cable. The fitting is displaceable in the area of the belt or cable end which is sewn round to form a loop. Slot form through apertures (35, 36) are provided equidistant from each other. The width of the fitting is at least equal to its height, and the two slot-shaped apertures (35, 36) are located next to each other on the same side as the closed through hole (34). The two slot apertures have lower lateral slot holes (38, 39) which are arched outwards, curved away from the fitting part edges (7).
Patent DE-2757046-A1 (DE)
Title: Tooth brush or brush for uneven surfaces - has alternate tufts of harder and softer bristles, of different length and area
Inventor: BRAUSS HELMUT
IPC: A46B9/06
Filed: 1977-12-21
Abstract: The brush is for cleaning surfaces which are uneven, and have gaps etc. such as teeth, and incorporates a base (1) in which are embedded bristles or tufts of bristles (2, 3), of alternating, varying hardness. The harder bristles (2) are longer than the softer ones (3), and can be corrugated in shape. The diameter, or area, of tufts (2) made of harder bristles is smaller than that of tufts (3) made of softer bristles. The distance between the separate types of tufts varies with the type of surface, for which the brush is intended.
Patent DE-2757289-A1 (DE)
Title: Memory circuit for electrical signals - is esp. for oscillogram signals and uses analogue=digital and digital=analogue units in circuit with comparator and synchroniser
Inventor: REEMERS DIETER ING GRAD
IPC: G01R13/22
Filed: 1977-12-22
Abstract: The storage circuit for electrical signals includes a logic element (2) incorporating an analogue to digital converter. Between a Y input (3) and the logic element (2) is an input amplifier (4), a sensor (5) and a comparator (6). The logic element is also coupled with a control unit (7) regulated by an adjustable timer (12) with a reset key (13), and also operating the trigger circuit (8). Another line from the logic element (2) leads through a D/A converter (14) to an output amplifier (15) and a dot liner (16) with a Y output (17). There is a direct line from the logic circuit to a synchroniser (18).
Patent DE-2757894-A1 (DE)
Title: Light absorption meter connected to alarm - has lamp and light sensor with adjacent lenses and calibrating blade or shutter between them
Inventor: STIEFELMEYER GUENTHER
IPC: G01V8/14
Filed: 1977-12-24
Abstract: The appts. has two lenses (3, 4) in front of a lamp and an optical sensor respectively. They face a mirror or corner cube reflector (5) light passes through the intervening medium (S) to the reflector and back to the instrument (S'). There is a blade (6) held in bearings (9) between the two lenses. It may be rotated to lie parallel to the rays of light or may lie perpendicular to them. It may be used for calibration purposes, to vary the amount of light being transmitted and received.
Patent DE-2758424-A1 (DE)
Title: Friction material of improved wear properties - for disc brakes, esp. for rail vehicles, contains phenol! resin, asbestos fibres and silicon carbide
Inventor: REYNOLDS HAROLD JOHN
IPC: F16D69/02
Filed: 1977-12-28
Abstract: Friction material suitable for the shoes of disc brakes for rail vehicles comprises (by wt.) 25-35 pts. of a phenolic resin binder, 2-12 pts. of a carbon cpd., 35-50 pts. of asbestos fibres and 0.4-3 pts. of silicon carbide. In addition, it may contain 2-10 pts. of resin formed from the shell of ground cashew nuts (pref. fully cured) 0.5-12 pts. of nitrile rubber, and/or 1-25 pts. of an inert filter (esp. 0.5-10 pts. of shredded tyre material and 0.5-15 pts. of barytes). Pref. C cpd. is graphic C or is C black with 95% of particle size >74 mu; amt. pref. is 4-8 pts. wt. Pref. friction material has compsn.: 29 pts. phenolic resin binder, 6 pts. graphitic carbon, 41 pts. asbestos fibre (esp. chrysotile) and 0.6 pts. SiC (pref. >95% of particle size 44 mu). It may also contain 6 pts. of fully cured particles of resin from ground cashew-nut shells, 6 pts. of nitrile rubber and a filler based on 6 pts. of shredded tyres and 6 pts. barytes.
Patent DE-2800966-A1 (DE)
Title: Exhaust gas heat exchanger for central heating unit - forms assembly of build-up construction with by=passed exhaust pipe and control valve
Inventor: SCHMITZ ANTON
IPC: F24H9/20
Filed: 1978-01-11
Abstract: The heat exchanger heats a liquid by means of exhaust gas, the latter being controlled by a throttle in the exhaust pipe, while the exhaust connections are at opposite ends. The heat exchanger (1) forms a bypass for the exhaust pipe (2), both forming a complete assembly. This is of built-up construction, comprising two end covers (3, 4), a double sleeve with heat exchanger (1) inside and exhaust pipe (2). A multi-way valve (5) in one of the end covers controls the flow of exhaust gas both through the pipe and the bypass to the heat exchanger.
Patent DE-2803909-A1 (DE)
Title: Room air heater and humidifier - has condenser with twin turbine fans for flue gases and room air, also condensate collector
Inventor: WEDZINGA JOHANNES HENDRICUS
IPC: F28D21/00
Filed: 1978-01-30
Abstract: The air heater and humidifier is connected between the flue gas outlet of a heating unit and a chimney. Underneath the housing is a connection (F) for the flue gas outlet and immediately below a condenser (A) with metal conversion resistant plates. The gases pass up and down a zig zag path before being exhausted through a top outlet by a turbine fan (D). Driven by the same motor (3) is a further turbine fan (C) for passing room air through the condenser zone to a side outlet (K), heating it as it passes through. At the bottom of the condenser is a condensate collector (G) with an outlet (H) onto which can be connected a humidifier.
Patent DE-2810717-A1 (DE)
Title: Valve housing with corrosion resistant plastics lining - has lining injection moulded in situ in housing at root of rib
Inventor: BRUNNER JOHANN
IPC: F16K27/02
Filed: 1978-03-11
Abstract: The housing for a valve has a membrane closure member with an inlet and an outlet passage (2, 3) at opposite sides of a rib (12) whose crest confronts the membrane. The passage and the rib are covered by a corrosion-resistant plastics lining (10) injection-moulded in situ in the housing. The plastics is injected through an opening (17) in the housing at the root of the rib. The opening is connected by two branch ducts (18, 19) leading to the opposite surfaces of the rib. To reduce stress concentrations in the lining the ducts are made of different cross-section and are situated asymmetrically w.r.t. the rib.
Patent DE-2818254-A1 (DE)
Title: Spreading dowel with eccentric screw hole - can be rotated to adjust position of screw hole and has retaining fine
Inventor: LINK NORBERT
IPC: F16B19/02
Filed: 1978-04-26
Abstract: The dowel consists of a cylindrical body (1) which has annular grooves in its circumference. The dowel is split so that it spreads when a screw is mounted in it. The hole for the screw is eccentric from the centreline of the dowel. The top section (4) of the hole is square, so that a key can be used to rotate the dowel once it is in the hole. A spreading fin (10) is provided which prevents the dowel rotating clockwise when the screw is mounted.
Patent DE-2823977-A1 (DE)
Title: Flue gas heat exchanger - with twisted vanes on tubular coils for swirling gas flow prodn.
Inventor: MOSER GERHARD
IPC: F28F9/24
Filed: 1978-06-01
Abstract: A heat exchanger consists of an outer and an inner coil of tubes through which water circulates and which are arranged in the flue gas duct of a stationary furnace installation. Several parallel rings are attached to the coils; they have both on the outside and on the inside radial vanes which are twisted to force the flue gases into a swirling flow. This heat exchanger combines a simple design with a high thermal efficiency.
Patent DE-2828539-A1 (DE)
Title: Oil slick separating float - with annular slot closed by fibre mat permeable only to oil
Inventor: MATHES NIKOLAUS DIPL CHEM DR
IPC: E02B15/04
Filed: 1978-06-29
Abstract: The Parent Patent described a tube, or bag-like structure with a horizontal slot at the interface of a slick which floats on the surface of a liq. (oil on water), where the slot is covered by a fibre or filament mat which is permeable only for the floating layer. The structure is pref. a float and has an annular slot or several rings of holes which are closed by the mat and lead to a central collecting space. Such a structure is easy to handle and transport.
Patent DE-2833237-A1 (DE)
Title: Electromechanical positioning system for type wheels - uses capacitively coupled rotating sensors connected to electronic control circuit
Inventor: HERTERICH WALTER
IPC: G05D3/14
Filed: 1978-07-28
Abstract: The positioning system, esp for type wheels in typewriters or printers, consists of an AC generator (10) whose output is connected to a number of switches (121-12n). The contacts are connected to electrodes fixed to a support plate (141-14n). Above the gps. of electrodes are two capacitively-coupled sensing electrodes in the form of semicircular segments and mounted on the spindle of the rotating type head. The signals from these electrodes are amplifier and rectified and fed to differential amplifiers (261, 262) connected in a DC motor control bridge. These signals are also fed, along with that from the generator (33) to a logic gate and switch (27, 28). This latter drives solenoids or magnetic clutches (31, 32) which are used to clamp the type head or wheel and operate the striking mechanism.
Patent DE-2833656-A1 (DE)
Title: Fleshing machine unloading conveyor - with tongs on arms tiltable for better access
Inventor: GABELMANN ERICH
IPC: C14B17/06
Filed: 1978-08-01
Abstract: Hides and skins are unloaded from a fleshing machine by a carriage on overhead rails from which pneumatic tongs are suspended by arms. The arms can be swivelled outward or inward from a low position to a high position to give unimpeded access. Arrangement provides safe access to the stack of hides on a pallet or to the rear of the fleshing machine without risk to the safety of the personnel.
Patent DE-2835790-A1 (DE)
Title: Heavy rollers transport trolley - has central guide wheels on pivot axis and has end guides
Inventor: FALKENSTEIN HERMANN JOSEF
IPC: B62D1/26
Filed: 1978-08-16
Abstract: The trolley is used for moving heavy rollers used in printing or other processes. The trolley has fore and aft support axles and special guide wheels which engage ground guides or rails. One set of wheels is mounted at each end (4) while the centre of the vehicle has a single, central wheel (6) to locate a central guide rail. The trolley is moved about its central pivot axis for moving in small spaces. The ends of the trolley have sprung plates (5) which apply the brakes when struck. The brakes are operated by a pneumatic reservoir (7) under the centre of the trolley.
Patent DE-2839844-A1 (DE)
Title: Staff cloakroom cupboard - has individual locking compartments with removable containers for used and replacement clothing
Inventor: DIPPEL HEINZ GEORG
IPC: A47B61/00
Filed: 1978-09-13
Abstract: The staff cloakroom cupboard has individual locking compartments for personal effects and movable containers for clothing. A top compartment receives the replacement clothing, a bottom compartment receiving the used clothing. The container is in the form of a bag inside the collector container on a spring-mounting with fixture frame holding the top rim of the bag. The fixture frame consists of two lengthwise sections each of which has a support leg forming an open frame and two compressible coverging sides.
Patent DE-2840673-A1 (DE)
Title: Underfloor connection unit for workshop supply cables - has guide rollers on underside of hinged cover, over which supply cable with plug is pulled out
Inventor: GRAF GEORG
IPC: H02G3/18
Filed: 1978-09-19
Abstract: The unit has a snap cover hinged in a frame into which it can be lowered flush with its surface. The cover has on its lower side fastening elements for at least one supply line. Guiding rollers are mounted in the fasteners on the cover underside, over which the supply cable with a plug can be pulled out when the cover is open. When the cover is closed, they provide between them and the cover the space for the plug.
Patent DE-2841992-A1 (DE)
Title: Compact bicycle without chain drive - has crank mounted directly on rear hub vertically under saddle on short frame
Inventor: DENK ANTON
IPC: B62M11/04
Filed: 1978-09-27
Abstract: The compact bicycle has the rear hub directly under the saddle, using a vertical frame section (9) and has the pedals operating a crank coupled on the rear hub. The crank can operate in several gear ratios using an epicyclic layout. The bicycle frame is shortened and is subsequently lighter. Having no chain drive eliminates soiling of clothes while there is no danger of trapping clothes in the chain. The user presses directly down on the pedals for to obtain a high thrust.