baber/WOPTO huggingface dataset:
Patent DE-2647633-A1 (DE)
Title: Tool holder for machine tool - has rotatable disc carrying number of different tools for changing by snap action
Inventor: BAYER JACK L
IPC: B23Q3/157
Filed: 1976-10-21
Abstract: The spindle (30) of a machine tool is mounted in bearings (26.28) in the sleeve (24) which can be moved up or down in the housing (22). A large dia. disc (44) with a number of equally spaced holes is mounted below the housing so that it can be rotated to allow each hole in turn to be aligned with the axis of the spindle. A collar (50) is retained by spring rings (52, 54) in each hole in the disc. The bore of the collar is shaped that it can retain a tool holder by a snap action. When the tool holder is secured in the collar the sleeve is pushed downwards so that a shoulder (42) snaps into a recess in the tool holder and allows the spindle to drive the tool.
Patent DE-2647634-A1 (DE)
Title: Seconds mechanism for quartz oscillator timepiece - has retaining spring engaging end of seconds shaft and fixed by screw to upper mounting plate
Inventor: MATSUURA EIICHI
IPC: G04C3/04
Filed: 1976-10-21
Abstract: The seconds mechanism for a quartz-oscillator timepiece has a second wheel (2), indexed via a ratchet mechanism and fixed to a seconds shaft (2b), carrying the seconds hand. The upper end of the seconds shaft (2b) is engaged by a retaining spring (5), which is fixed by a screw to the upper mounting plate (7) of the mechanism. The retaining spring (5) pref. fits into a groove (7b) in the mounting plate (7) and is in the form of a spring blade, with the spring tension adjusting by rotating the fixing screw.
Patent DE-2651360-A1 (DE)
Title: Connector for printed circuit boards - has contact element in slot in underside of U=shaped support which locks into holder and is adaptable to hybrid circuits
Inventor: BERTSCH ADOLF
IPC: H01R13/646
Filed: 1976-11-10
Abstract: The connector, for printed circuit boards and hybrid circuits, has a contact element in a support. The support consists of a U-shaped insulating part with a central web whose underside has a slot for the contact element. The support has lateral projections to engage corresp. recesses in a holder. The support has springs that engage the central web where the contacting ends of the contact element project. The central web is divided parallel to the plane of the slot and has a flat screening plate located in the plane of division between the upper and lower parts of the support. The two parts lock together.
Patent DE-2652576-A1 (DE)
Inventor: FUJITA HIROO
IPC: G09G3/18
Filed: 1976-11-18
Abstract: A method of driving a liquid crystal display matrix, in which digit drive signals are applied to digit electrodes and segment drive signals are applied to segment electrodes. Each of the digit drive signals has first pulse components of a first pulse width varying at a plurality of voltage potentials in a first predetermined sequence during each cycle, and a second pulse component of a second pulse width having a selected one of the voltage potentials during each half cycle. Each of the segment drive signals has first pulse components of the first pulse width varying at at least two of the voltage potentials in a second predetermined sequence, and a second pulse component of the second pulse width having a voltage potential equal to that of the second pulse component of the digit drive signal. The second pulse components of the digit and segment drive signals are in synchronism with each other, whereby the potential difference across the electrodes will be zero to reduce the root-mean-square voltage applied to the liquid crystal display matrix. The duty cycles of the digit drive signals and the segment drive signals are varied in dependence on an ambient temperature.
Patent DE-2704342-A1 (DE)
Title: Brake drum duster system - has open cylinder with vacuum fitting and series of high pressure nozzles
Inventor: PARKS CALVIN G
IPC: B08B15/02
Filed: 1977-02-02
Abstract: The brake drum and shoe assembly duster system has a cylindrical container with one open end and one closed end provided with a vacuum fitting at an aperture centrally located in the closed end. High pressure air fittings along the inside walls are spaced 180 deg. apart so that a quarter turn in each direction from insertion over the brake drum and/or shoe assembly causes impingement of compressed air over the entire surface of the brake drum itself. The brake dust dislodged by the high pressure air is then removed through the vacuum fitting in the centre of the bottom of the cylindrical container. Adapter rings are provided for ulitilisation of the container of the system with different sized brake drums.
Patent DE-2707780-A1 (DE)
Title: Rear grip for ski safety harness - has pivoting heel grip on housing containing spring loaded sliding block with cam surfaces to hold heel grip in place
Inventor: COVINI LORENZO
IPC: A63C9/084
Filed: 1977-02-23
Abstract: This ski harness heel grip has a fixed standing plate with a toothed extension by which a base plate (5) is held in any required position corresponding with the users shoe size. the shoe is held by a grip tooth (18) which pivots on an axle (14) in a housing (11). The heel grip (18) is extended at the rear to carry a wheel (21). The wheel runs along a sloping cam surface (29). The cam surface (29) is on the end of a slide block (13) which is pushed forward by a spring (25) to hold the grip (18) in the closed position. In an emergency the slide block can be pushed back by the wheel (21) to release the shoe (7).
Patent DE-2710836-A1 (DE)
Title: Rotating slider closure for hopper wagons - has mechanical and manual activator operating optionally and separately
Inventor: METZE HANS-JUERGEN
IPC: B61D7/20
Filed: 1977-03-12
Abstract: The rotating slider closing device is used especially in rail bound hopper wagons for transport of granular material. The closing device can be operated optionally by a mechanical drive or manually. The lever used for manual operation remains stationary when the closing device is mechanically operated. The manual operation lever (7) can be tilted about a pivot pin in the strap held in a groove of a sleeve. The carrier (12) on the lever engages with a longitudinal groove (13) of the sleeve which has an indicator for the given position of the rotating slider. The movement of the manual lever away from the working position to locking position is prevented by a spacer and helical guide.
Patent DE-2716237-A1 (DE)
Title: Tractor drawn implement combination - has soil flow flap formed of hinged sections arranged between horizontal rotor and following implement
Inventor: BREDEBUSCH HEINRICH
IPC: A01B33/12
Filed: 1977-04-13
Abstract: The cultivator has a horizontal rotor with a seil flow flap arranged between the latter and a tollewing implement. This flap can be drawn in or extended relative to the ground. The seil flow flap (6) is divided horizontally into several hinge-connected parts (12, 14). The part flaps (14) which are not connected with the frame of the implement combination are guided by linkages (17) which are hinged on one side to the part flap (14) at a distance from the flap linkage (15) and on the other side to the frame of the implement combination.
Patent DE-2716612-A1 (DE)
Title: Recovering phosphates from aluminium bright dip operations - by reaction with sodium hydroxide to form useful trisodium phosphate
Inventor: FANG ALBERT YI-HUNG
IPC: C01B33/26
Filed: 1977-04-15
Abstract: Phosphate values are recovered from waste aq. acid solns generated in Al bright dip operations and contg. H2PO4 combined with appreciable amts. dissolved AlPO4 and HNO3. The phosphates are recovered as Na2PO4 crystals (including hydrate complexes with NaOH). Recovery is by (a) reacting the waste acid aq. soln. with NaOH or NaOH in combination with Na2CO3 to convert all the AlPO4 to NaAlO2 and Na3PO4, the HNO3 to NaNO3 and the H3PO4 to Na3PO4. NaAlO2, NaNO3 and Na3PO4 are all present as dissolved salts inthe aq. soln., (b) removing part of the Na3PO4 by crystallisation, retaining NaAlO2 and NaNO3 as solubilised salts in the remaining mother liquor and (c) sepg. Na3PO4 crystals from the mother liquor. Prod. Na3PO4 is more widely useful than the fertiliser conventionally prepd. from the waste acid solns. and is produced at a commercially competitive price. The change of use allows rinse acid soln. concn. to be reduced, avoiding waste. Phosphate recovery is maximised, with as little as possible tied up with Al values.
Patent DE-2716937-A1 (DE)
Title: Precision boring machine tool with thermal expansion compensation - has each tool spindle mounted on bridges and held against displacement by pressure fitted pins
Inventor: KOPELEV FRIDRICH LVOVITSCH
IPC: B23Q11/00
Filed: 1977-04-16
Abstract: The boring machine comprises a framework and a work table adapted to have workpieces secured on it mounted on the framework for displacement in the course of a boring operation. Either one or two bridge structures are mounted on the framework, each carrying at least one spindle head with a tool spindle. The housing of the spindle head is secured on the side of the respective bridge structure, facing the work table. The housing of the spindle head is attached so that the axis of the spindle is offset relative to the axis of symmetry of the bridge structure. The housing of the spindle head is retained against displacement w.r.t. the side of the bridge structure by pins pressure-fitted in the housing. The pins are arranged in the housing of the spindle head so that the plane including their axes is offset relative to a parallel plane including the axes of the spindle.
Patent DE-2717567-A1 (DE)
Title: Workpiece carriage movable in two mutually perpendicular directions - uses manually set nuts stopped in any position in either direction on machine tool
Inventor: WINKELMANN SIEGFRIED
IPC: B25J5/02
Filed: 1977-04-20
Abstract: A device for controlling the movement of the workpiece of a machine tool in two mutually perpendicular directions has two vertical guides (4) for a carriage (5). The carriage (5) also slides on two horizontal guides (9). The movement in both vertical and horizontal directions can be held in any required position by a bracket (15) which rests against a nut (14) forming a stop. The nut (14) can be screwed along the bar (35) to stop the carriage in any required position. If required several such nuts can be used. The bracket (15) is mounted on a hydraulic jack so that it can be pushed outwards to clear the nut (14) and allow the carriage to travel to the next stop.
Patent DE-2717894-A1 (DE)
Title: Camera shutter using two blades - both covering aperture completely to provide smooth gradation of exposure times from very short to very long
Inventor: BRAEUNING GERHARD
IPC: G03B9/16
Filed: 1977-04-22
Abstract: A camera shutter has two spring-loaded blades both of which completely cover the shutter aperture. One blade is larger than the other. The design provides a smooth gradation of shutter exposure times from very short to very long. For short exposure times one blade is opened first, the second is opened to expose the film and the first blade is closed first to terminate the exposure. Both shutter blades are mounted on a back plate and are operated by coil and torsion springs. The shutter blades are operated by moving a bar against the base of each shutter blade in turn close to the hinge which is concentric for both.
Patent DE-2719834-A1 (DE)
Title: Heat recovery from high entropy streams - using heat pump with two component refrigerant mixture one of which is volatile and acts as solute in other
Inventor: SCHMIDT HANS-GUENTER ING GRAD
IPC: F25B30/00
Filed: 1977-05-04
Abstract: Heat recovery system for waste heat derivs. heat from gases or liquids and consists of two counter-current or quasi-countercurrent exchangers and a liquid pump. The liquid side heat exchange is connected to a heat pump cycle. The refrigerant in this is a mixture of two materials of different boiling points. At least one of these is present in the system in a gaseous state and hot all flows through the heat exchanger. In an evaporator section, some vapour is drawn out of soln. and is preheated before flowing to the compressor. Here it is recompressed and reunited with the auxiliary liquid. Used in recovery of heat from streams of high entropy and relatively low temp. -flue gas or liquid streams.
Patent DE-2721498-A1 (DE)
Title: Testing device for integrated circuits with IGFETs - involves specified connections of tested circuit terminals to different potentials via resistors in connecting paths
Inventor: FUCHS DIETER ING GRAD
IPC: G01R31/316
Filed: 1977-05-12
Abstract: The tested integrated circuits have each a threshold voltage terminal, at least two current supply terminals and several external signal supply terminals. During testing the terminals are connected to corresponding potentials, while the current terminals are interconnected. One of the potential supply lines incorporates an ohmic resistor, between which and the integrated circuit is located the terminal for the field-effect switch control electrode. The switching path of this switch forms, together with a second ohmic resistor, a voltage divider, supplied on one hand with an auxiliary potential and on the other hand with the testing potential across the first resistor. The collector is coupled to the auxiliary potential via a collector resistor.
Patent DE-2724591-A1 (DE)
Title: Agglomerating appts. for finely powered products - has hot gas supply leads in vibrating conveyor hod with suction withdrawal conduits
Inventor: BONGERT WILHELM
IPC: B01J2/16
Filed: 1977-06-01
Abstract: The agglomerating appts. is for fine powder or dust-like products in a vibrating conveyor hod enclosed on all sides but with feed-in and withdrawal arrangements. A chamber is installed below the perforated base of the hod for the introduction of a gas-vapour mixt. Conduits installed above the base remove the mixt. by suction. These conduits and the walls of the hod have heating appliances. The hod-in the region of the suction conduits (10) and/or along the inner side of its walls is provided with hot gas supply leads. The latter can be in the form of a slotted rocket jet (25) in the region of the suction conduits (10).
Patent DE-2734432-A1 (DE)
Title: Tape recorder for stereophonic signals - derives volume-dependent signal from dynamic compressor and uses it for gain control during reproduction
Inventor: RUBY DIETMAR
IPC: G11B27/32
Filed: 1977-07-29
Abstract: Sound signal passes before its recording through a dynamic compressor, and a control voltage depending on the signal volume is collected from it and used as a volume control signal. It is then frequency or PC modulated and recorded on the tape in a separate track or two separate tracks for stereo. After demodulation it is used during reproduction as gain control signal for a controllable amplifier, so that the signal dynamic compression is cancelled out. This provides a full dynamic range corresp. to the original performance.
Patent DE-2739979-A1 (DE)
Title: Cable drum with socket unit locked into holder - has one end flange attached by bayonet link to facilitate assembly
IPC: H02G11/02
Filed: 1977-09-06
Abstract: The cable drum has a carrying handle(2), two support legs (3) and sockets (9) at its centre (axis). The socket unit locks into its holder in the drum by means of a bayonet device to facilitate assembly. The socket unit, the metal rails that hold the connections, and the insulating cover (10) are clamped between the holder and the end flange (8) of the drum into which the socket umit is set to that they neither rotate nor move axially.
Patent DE-2740502-A1 (DE)
Title: Pulse delta modulator connected to decision circuit - has synchronised rectangular wave generator coupled to signal input of comparator
Inventor: KREIL SIEGMUND ING GRAD
IPC: H03M3/02
Filed: 1977-09-08
Abstract: The pulse delta modulator compares theanalogue input with a reference to produce a result that is passed to a decision circuit to form the delta modulated output signal. An integrator obtains the reference signal from the output. A rectangular-wave generator (8) is synchronised by a clock pulse generator (7) and is connected to the first input of the comparator (2). The rectangular-wave generator frequency bears an integral relationship to the sampling frequency and lies above the transmission band.
Patent DE-2740648-A1 (DE)
Title: contest card with checking system - has numbered card with press out fields and slider for checking
Inventor: NAWRATH PETER
IPC: A63F3/06
Filed: 1977-09-09
Abstract: A numbered card to be used in games of chance is produced in such a way that a particular combination is readily marked. The card (1) is mfd. in either cardboard or plastic and has a number of marked fields that are partially stamped out (2). The required number are readily represented by pressing out the specific cell (3). Checing is achieved by a slider (4) containing the wining pattern.
Patent DE-2745239-A1 (DE)
Title: Yellow blooming gerbera hybrid - provides strong bushy plants with single flowering blooms on stalks and deeply notched long leaves
Inventor: CROONENBROECK FRANZ HEIN
IPC: A01H5/02
Filed: 1977-10-07
Abstract: The Gerbera hydrid has strong bushy plants with strong, hairy stalks, each of which tips carries a single flowering bloom the brilliant yellow colour. In the full flowered state, the bloom has a diameter of 8 to 13 cm and consists of 40 to 60 small, thin leaves which lie doubly and triply over each other. There is a disc-shaped flower base which is green in the early stages and has yellow fruit leaves at the outer edge. With continuous bloom, the filaments become increasingly yellow towards the inside. There are long and fixed leaves which have deep, irregular notches at the edges. Both plant and cut bloom have very good durability.
Patent DE-2746962-A1 (DE)
Title: Electric egg boiler - has warming unit to keep eggs at serving temperature
Inventor: BENKERT KLAUS
IPC: A47J29/02
Filed: 1977-10-19
Abstract: Egg boiler is fitted with a warming unit to keep the eggs warm once they have boiled. The warming unit can be a hot plate in which is mounted an electric heating element (4) of the boiler. The warming unit can also be formed by an additional electric heating element which may or may not be fitted with a thermostat which is can be provided in addition to the first thermostat of the boiler. The warming unit can be in the form of a heat-insulation layer fitted into a hood detachably covering the lower part of the boiler housing.
Patent DE-2749782-A1 (DE)
Title: Telephone exchange allocated switching device - ensures that when dialled subscriber cannot be reached at one location call is diverted to another where subscriber might be found
Inventor: KAILING ALOYS ING GRAD
IPC: H04M3/51
Filed: 1977-11-07
Abstract: A called subscriber dialed number is stored in a corresponding connecting circuit. When a subscriber is dialled, to which a connection cannot be built up (e.g. subscriber engaged or line is blocked), the connection is diverted by building a connection to another subscriber or to an individually allocated switching device. This is done using a corresponding dialling signal collected from a diversion store. A switching criterion indicating impossibility of reaching the original dialled subscriber maintains the originally dialled subscriber number stored, and when the diverted call is established, the stored number is transmitted to the new subscriber or switching device.
Patent DE-2749948-A1 (DE)
Title: Speech transmission system used with telephones - uses two dictating machines recording and reproducing at low speed, and transmitting and receiving at high speed
Inventor: HOLZER WALTER
IPC: H04M1/65
Filed: 1977-11-08
Abstract: The system uses at least two sound recording and reproducing devices. The transmitter is a dictating machine with at least two speeds. It records a dictated text at the lower speed, and transmits it at the higher speed to the receiver which is a similar dictating machine. The message is received at a high speed and reproduced at a low speed corresponding to the transmitter recording speed. The system is intended to be used with telephones.
Patent DE-2759092-A1 (DE)
Title: Fluid powered transport track for pallets - uses pneumatically or hydraulically inflatable tube to move conveyor part on straight or curved path
Inventor: WEISS RAPHAEL
IPC: B65G35/00
Filed: 1977-12-30
Abstract: The stationary part of the transport unit has a tube (6) which rests on a support surface (1) and can be inflated by a fluid. The movable part (22, 24) comprises a cylindrical body which rests on and compresses the tube. Inflation of the tube causes the body to be moved along as its rotational axis lies at right angles to the tube's length. The support surface is U-shaped and has vertical side lines (2) which provide lateral guidance for the body. The top edges of these limbs are directed inwards towards one another to provide flanges (4) on whose lower faces wheel rollers run (20).
Patent DE-2806017-A1 (DE)
Title: Multi-sectioned tower-like steamer with common lid - has matched support edges for interchanging different pans for easy storage and usage
Inventor: BAUMANN LUDWIG G
IPC: A47J27/06
Filed: 1978-02-14
Abstract: The steamer comprise a saucepan with a stepped upper edge onto which fits the steaming pan having beneath its upper edge, an inwardly turned groove forming a support edge for the lid and the insert pan. The support edge of the steamer which supports both insert and steaming pans is turned outwards and the two edges have the same inner dia. so that the insert pans are interchangeable between the steamer and the steaming pan. The peripheral inner dia. of the steam and steaming pan and the peripheral outer dia. of the insert pans are dimensioned so that when required the steamer fits in the steaming pan and the insert pans fit in the steamer. The lid fits all vessels.
Patent DE-2813453-A1 (DE)
Title: Foot for stacking metal wire objects - has groove provided with wide part for accommodating wire frame and connecting part with gap on each side
Inventor: ERTLE KARL ING GRAD
IPC: B65D21/02
Filed: 1978-03-29
Abstract: The foot for positioning or stacking metal wire objects, such as containers, consists of a groove (3) in which is a section (21) to take the wire frame (18"). The cross section of the groove section (21) is larger than that of the wire (18"). Connecting with this section (21) is another grooved section (22) with front surfaces (9) gripping round the wire (18"). A gap (12) on each side of the groove's (3) lengthwise, central axis ends at the base (6') of the groove. Vertical surfaces on each side of the gap (12) form abutments for the wire mesh (19).
Patent DE-2816346-A1 (DE)
Title: Plastics light reflector for road boundary marking - has top part with metal coated reflecting faces on its back and watertight compartments
Inventor: SIMON HEINZ
IPC: E01F9/619
Filed: 1978-04-14
Abstract: The plastics light reflector has a cover plate(4) which is joined, preferably welded to the top part(1) with a gap left between them. This gap between the back of the top part and the cover plate is subdivided by bridges(5) into two or more compartments(6a, 6b, 6c). Each of these compartments is gas-tight and liquid-tight. The cover plate may have a bead of welding material for ultrasonic welding in the region of its outer edge, of the bridges and of the bridge edge of the assembly holes.