baber/WOPTO huggingface dataset:
Patent DE-2717335-A1 (DE)
Title: Control circuit for line of printing electrodes - serially connects electrodes to supply voltage in time shorter than half period of AC to avoid need for energy storage
Inventor: BURCHARDT JOACHIM
IPC: G01D15/08
Filed: 1977-04-19
Abstract: Control circuit is designed for printing electrodes arranged in a line by means of which information is serially represented on a recording surface which moves at right angles to the line direction and is optically varied on its surface by a current flow applied through the electrodes. The supply current for the electrodes is produced by rectification of the alternating current and production of a predetermined supply voltage. The serial connection of the electrodes of a line or a line element to the supply voltage is accomplished in a time which is shorter than the half period of the a.c. This obviates the need for energy storage.
Patent DE-2718459-A1 (DE)
Title: Automatic proximity detector for railway wheels - is for railway traffic control and is stable under diverse conditions
Inventor: WEBER ULRICH DR ING
IPC: H03K17/95
Filed: 1977-04-26
Abstract: The automatically stabilized proximity detector uses a stray field generating coil driven by a local oscillator, for use in railway traffic control applications and which is stable under very diverse conditions and requires no manual resetting. The detector consists basically of an oscillator (1) which feeds a coil (1') with an alternating signal so that when a wheel passes with the stray field created, the coil impedance falls and the oscillator output voltage is suddenly attenuated. This is detected by a suitable detection circuit (32) to give an output signal (A). Slow changes in conditions, such as humidity and temp. are compensated for by a feedback detector (31) and low pass filter (4) arrangement which drives the oscillator (1) to stabilize the output amplitude. Test signal inputs (E1, E2) are also provided.
Patent DE-2726895-A1 (DE)
Title: Switching system for operating theatre lighting - has semiconductor relay ensuring smooth changeover from normal to auxiliary lighting
Inventor: BAU MANFRED
IPC: F21V23/00
Filed: 1977-06-15
Abstract: The switching system is used for a normal and auxiliary source of an operating threatre lighting fitting. The changeover from normal to auxiliary light is carried out automatically. No dark period occurs on changeover which can occur on manual changeover switching. An energisation relay (12) is connected in series with each normal light source (10). A relay has contactor (12r) for auxiliary light source (10a) connected in series with normal light source. Both series circuits are connected parallel to each other to the electric power supply (1, 2). A current or voltage operated semiconductor element is used as relay. A signal lamp (16) is connected in parallel to the auxiliary light source.
Patent DE-2727985-A1 (DE)
Title: Mouldings milling machine - has shaft carrying tools mounted cantilever fashion and table and workpiece clamps movable away from tools for quick change
Inventor: MAIER PETER
IPC: B23Q3/06
Filed: 1977-06-22
Abstract: Mouldings milling machine has its drive shaft which carries the milling tools mounted cantilever fashion and the clamp for clamping the workpiece to the table is mounted pivotally in such a manner that following its pivoting away from the workpiece the tools are readily accessible. Used for milling mouldings from wood, plastics, glass-fibres. Tool changing outing time is reduced to minimum.
Patent DE-2731065-A1 (DE)
Title: Instantaneous fuel consumption meter for vehicles - has vacuum depression operated instrument with switched resistor selected by gear change
Inventor: FIALA ERNST PROF DR
IPC: G01F1/34
Filed: 1977-07-09
Abstract: The vehicle fuel consumption gauge comprises a carburettor inlet tube with throttle valve (2) following which, fitted in a suitable position, is a pressure sensor (3). The electrical signal from the sensor drives an indicator (4) which gives a reading proportional to pressure or the vacuum depression in the throttle tube. The indicating instrument and pressure transducer are connected in series to a DC battery supply (5), e.g. the vehicle battery, and a selector switch (6). The switch has a number of positions, each corresponding to the gear selected by the driver. The switch may be operated via a linkage attached to the gear shift lever. With each selected gear position is associated a fixed resistance value (7) brought into circuit by the action of the switch. The meter reading is thus matched to the transmission ratio between engine and driving wheels. The meter can then be calibrated in suitable units such as litres/100 km, km/litre, litre/hour and so on.
Patent DE-2731577-A1 (DE)
Title: Glass fibre-reinforced laminated plastics leaf spring - has centre laminate with fibres across direction of flexion and parallel outer plies
Inventor: FECHNER GERD
IPC: F16F1/368
Filed: 1977-07-13
Abstract: Glass fibre-reinforced leaf spring for vibrators is a laminate composed of several plies laid-up in crisscross fashion. One or more cross-ply layers (i.e. those plies that have the major portion of the reinforcing fibres perpendicular to the flexing direction of the spring) lie in the middle between equally thick plies thick major fibre portion is in line, with the flexing direction of the spring.
Patent DE-2733918-A1 (DE)
Title: Di:methyl terephthalate from para-xylene and para-methyl toluate - by oxidn. and esterification with separation and re-oxidn. of xylyl-toluate
Inventor: POKORSKA ZOFIA DIPL ING CHEM
IPC: C07C51/265
Filed: 1977-07-27
Abstract: Dimethyl terephthalate is prepd. by (i) oxidn. of p-xylene and recycled p-Me tolulate with air-O2; (ii) esterification of aromatic carboxylic acids with MeOH and (iii) dimethyl terephthalate separation and purification by distn. and crystallisation. Polycyclic cpds. contg. methylene-oxy-carbonyl bridges -CH2-OC=O, esp. p-xylyl-p-tolulate, (I) and its derivs., are separated after esterification step and recycled, entirely or partly, to oxidn. of p-xylene and p-Me toluate and/or oxidised separately at 120-250 degrees C under =25 atmos. press., in the presence of standard oxidn. catalysts, e.g. organic Co, Mn- and/or Ni salts. Selectivity of dimethyl terephthalate prepn. can be increased by 1-3 mol %.
Patent DE-2742578-A1 (DE)
Title: Frequency converter for community antenna system - has two mixers supplied with fundamental and first harmonic from same local oscillator
Inventor: EISENLOHR WERNER DIPL ING
IPC: H03B19/00
Filed: 1977-09-22
Abstract: The frequency converter, for community antenna systems, has a first mixer converting the input into an IF signal. The IF signal is BP filtered and amplified and passed to a second mixer that produces the final output signal. Both mixers are supplied from the same local oscillator (2) via a frequency coupler (3) that passes the fundamental to one mixer and the second harmonic to the other. The advantage lies in simplicity and low cost.
Patent DE-2745365-A1 (DE)
Title: Tension received optical fibre end sleeve connection - has end sleeve consisting of first cylindrical part pushed into end of metal spiral of protective hose
Inventor: HOLOUS ROBERT
IPC: G02B6/40
Filed: 1977-10-08
Abstract: The traction-relieved optical-fibre connection has a second wider cylindrical part which adjoins the first part with a flange (6) acting as a stop for the metal spiral (1a). This second part has a continuous channel (7). A third, even wider part adjoins the second part and serves as a stop for the outer skin (1c) of the protective hose. A fourth narrower part receives the end of the bunch of fibres. A clamping sleeve (3) is pushed over the end sleeve (2) and over the hose (1). A joining cap (4) is pushed over the sleeve and the clamping sleeve.
Patent DE-2751793-A1 (DE)
Title: Quick action assembly screw - has thickened neck in blank adjacent to head accommodating fixing device recess
Inventor: VOECKL ERICH
IPC: F16B37/14
Filed: 1977-11-19
Abstract: The quick-action assembly screw has a self-tapping thread formed by cold or hot-shaping and extending as far as the head. A recess in the top of the head accommodates the boss of a fixing device, e.g. a screw head cover. The shank of the screw blank (1), without thread, has a thickened neck (9) immediately adjacent to the head (2), to accommodate the recess (5). The finished screw, with thread, has a constant dia. for the whole length of the screwed portion. The base of the thread groove can be of greater dia. at the neck than elsewhere.
Patent DE-2753093-A1 (DE)
Title: Station and line monitoring arrangement for telecontrol network - detects low and high levels on incoming lines at each station and transmits them to outgoing lines
Inventor: BUDNIK NORBERT ING GRAD
IPC: H04B17/40
Filed: 1977-11-29
Abstract: The device monitors are stations and connecting lines in remote control networks. The stations include at least one device (PE) for recognition of a normal/high level on the incoming lines (xk, yk, zk) and a device (BSE) for connecting an incoming line (xk) on which the high level has been recognized to a receiver (E) and to the outgoing line (yg, zg). A device (IEE) recognises signal end, releases the engaged receiver after a first period and establishes a 'ready to transmit' condition after a second period after the high level has disappeared from all incoming lines (xk, yk, zk). At least one device (LUW) detects a second (low) level on the incoming lines, and a device transmits the level to the outgoing lines.
Patent DE-2756306-A1 (DE)
Title: Automatically operated tooth-brush holder - has jaws preventing replacement of brushes until elapse of determined period of time
Inventor: SCHMIDT WALDEMAR
IPC: G09B19/00
Filed: 1977-11-02
Abstract: The automatically operated toothbrush holder has a casing (1) with a set of holes (6) in the top for insertion of the toothbrushes (2 to 5) which are gripped between jaws (15, 43 etc) below. The gripping action of these jaws is controlled by a timing device (27). The mechanism operates so that after a toothbrush has been removed, its entry is blocked by the mechanism until a period of eg three minutes has passed. This ensures that the toothbrush has been used for a sufficient period of time. An indicator (38) is operated at the end of the period.
Patent DE-2757639-A1 (DE)
Title: High speed tool steel - has improved wear resistance and a higher carbon, chromium, molybdenum and silicon content
Inventor: LOHMANN-VOSS ECKART DIPL ING
IPC: C22C38/30
Filed: 1977-12-23
Abstract: The steel has the compsn. (wt.%) 1.02-1.10 C, max. 0.50 Si, max. 0.4 Mn, 4.5-5.0 Co, 4.0-4.5 Cr, 4.7-5.2 Mo, 1.8-2.1 V, 6.0-6.7 W, balance Fe and the usual impurities. The lower limit of C, Cr, V and Si are pref. raised by 0.02%, 0.2%, 0.1% and 0.3% resp. The steel in cast condition is hot deformed, heat treated hardened and annealed. It may be produced by powder metallurgy. The steel is economical and has good toughness and improved wear resistance. Used as high speed tool steel for cutting austenitic and heat resisting alloys and for the production of rectangular or circular saw blades, and miling cutters.
Patent DE-2803674-A1 (DE)
Title: Frequency multiplier with separate outputs - uses mono and bistable flip=flops for even and uneven multiples of basic frequency for pilot and carrier frequency output separation
Inventor: SONNTAG FRITZ DIPL ING
IPC: H03K5/00
Filed: 1978-01-27
Abstract: The multiplier has separate outputs for even and odd multiples of the fundamental frequency, using mono- and bistable flip-flops. The output of an EXCLUSIVE-OR gate (1) is connected to the input of the monostable flip-flop (MM), whose non-inverting output, delivering the even multiples is connected to a bistable flip-flop (FF) and to the first input of a NAND-gate (2). The bistable flip-flop non-inverting output is connected to the NAND-gate (2) second input, to the first input of a NOR-gate (3) and to the second input of the EXCLUSIVE-OR gate. A rectangular voltage (A) whose frequency is to be multiplied is applied to this gate first input. Outputs of NAND- and NOR-gates (2, 3) are connected to a summator whose output delivers the odd multiples of the fundamental frequency.
Patent DE-2810926-A1 (DE)
Title: Underground thawing system for path or garage entrance - uses fluid temporarily heated to initial temp. and pumped in circuit
Inventor: MICHAEL HARALD
IPC: E01C11/26
Filed: 1978-03-14
Abstract: For thawing open-air surfaces, such as garage approaches, paths and others, the ground is heated from below by heating fluid circulating in a pipe system. During circulation the fluid is only temporarily heated for between 1/4 and 1 1/2 hour to an initial temperature of at least 330 k, and it is pumped in the circuit. Heat transfer into the ground is evenly distributed over the surface by a heat insulation unit. Melted water is led away into the ground thrrough a number of gaps in the surface. Pumping may be begun before heating.
Patent DE-2815065-A1 (DE)
Title: EPDM mouldings protected against frosting - by adding morpholino-hydroxy-benzofuran deriv. or methylene bis:methyl-tert.-butyl-phenol before vulcanisation
Inventor: HAAKE EBERHARD DIPL CHEM
IPC: C08K5/35
Filed: 1978-04-07
Abstract: Prodn. of mouldings, protected from frosting (surface oxidn.), from an EPDM rubber blend is effected by adding 0.5-2.0 phr of a morpholino-hydroxy-benzofuran deriv. (I) or corresp. amts. of 2,2'-methylene-bis-(4-methyl-6-tert, -butylphenol) to the blend before vulcanisation. Light-coloured blends, opt. contg. chlorosulphonated polyethylene, are permanently protected against frosting.
Patent DE-2815759-A1 (DE)
Title: Telephone call coupling from one subscriber to another - using changeable extension number store and ring tone generator for rapid switch through
Inventor: SCHOBERTH REINHOLD ING GRAD
IPC: H04M1/00
Filed: 1978-04-12
Abstract: The call is put through to a first subscriber and is redirected to a second subscriber. The first subscriber station has a fixed device consisting of a number store, a dialling device connected to it, and a switching through device controlled by a remotely controlled switch. There is a movable device which can be connected to the telephone of any subscriber. A pilot tone generator generates the switching signal for the remotely controlled switch in the station.
Patent DE-2819611-A1 (DE)
Title: Refuse hammer mill discharge assembly - has passage closed by sprung and weighted flaps at inlet and outlet ends respectively
Inventor: LINDBERG ERNST RUDOLF
IPC: B02C13/286
Filed: 1978-05-05
Abstract: The attachment is an inclined trough (18) connected to the discharge opending (14). The opening is fitted with a swinging flap (15) carrying an arm (41) attached to one end of a spiral spring (21a). The flap opens under the impact of a heavy mass allowing it to pass into the discharge channel (20) formed by upper wall (19) and bottom wall (25). At the end of the channel is further flap (36) which is biassed to a closed position by weight (37). By this arrangement heavy masses which pass the outlet opening (14) are retained in the channel (20), forming an obstacle which prolongs the hold up time of the material within the housing (17) resulting in better disintregation of the material.
Patent DE-2826185-A1 (DE)
Title: Mobile plastics cloche trailer for rows of plants - sprays from below to treat underside of leaves
Inventor: HENDLMEIER KONRAD
IPC: A01M7/00
Filed: 1978-06-15
Abstract: Device for spraying the leaves of plants e.g. beets potatoes, maize, planted in rows, from below is pulled by a tractor via a parallelogram mechanism, and fitted with spraying nozzles. A (partly) tubular casing enclosing the leaves is provided for each row of plants. The casing has a longitudinal slot in its bottom near the ground. The spraying nozzles are fitted outside the casing. The latter can be vertically adjusted so that the distance from slot to ground may be varied. The casing is made of plastics e.g. a plastics film giving it a cloche-like appearance.
Patent DE-2832167-A1 (DE)
Title: Clay strip transverse grooving machine - has row of rollers acting against three faces in turn during movement
Inventor: BORGMANN HEINZ
IPC: B28B11/08
Filed: 1978-07-21
Abstract: The machine forms transverse grooves in a strip of clay, having one or more rows of rollers forming them in two adjacent sides of the strip, which is moved sideways in relation to them. The row (6) of rollers (8) is mounted between two supports (3, 4) for the strip (2), and movable at right angles to the travel direction of the latter between first and second position, so as to act in turn against the strip front, top and rear faces as it and the strip move. The strip conveyor (10) is halted while the rollers are acting against the front and rear faces.
Patent DE-2832260-A1 (DE)
Title: Electromagnetic vibrator for swinging screen - has two coils wound in opposite directions and energised alternately
Inventor: HUEBNER FRIEDHELM
IPC: B06B1/14
Filed: 1978-07-22
Abstract: A vibrating screen has two sections (1, 2) suspended by hinged vertical rods (3, 4) so that the sections can oscillate in the horizontal direction. An electro-magnetic vibrator (10) is mounted below one section (2) and connected by a rod (9) and lug (10) to the other section (1). A compressions spring (8) is fixed between the end faces of the sections (1, 2). The vibrator (10) has two coils wound in opposite directions and energised alternately through the control system to impart an oscillating motion to the rod (9) which, in turn, causes the section (1, 2) to vibrate.
Patent DE-2835250-A1 (DE)
Title: Water well for filtered drinking water - has central suction pipe, pump, and filter held below water by plunger pipe
Inventor: GRAETZER GEORG
IPC: E21B43/08
Filed: 1978-08-11
Abstract: An external shaft wall screens the well shaft from the encompassing earth, and permits entry of groundwater through apertures, in the well supplying drinking water. The installation has a filter for cleaning, suction pipe and pump for water conveyance, and also a layer of gravel on the well shaft bottom. A plunger pipe (6) with closed walling is inserted in the well shaft (4), holding the filter (10) submerged below water level in its open bottom end (8). The suction pipe (24) runs inside this pipe to remove water from above, as far as a position in front of the filter, which can comprise a series of two individual filters. This permits simple extraction of filtered drinking water.
Patent DE-2841503-A1 (DE)
Title: Earthquake resistant tall chimney lining - has insulating layer between inner and outer shells, and enclosing support ring
Inventor: BOTTENBRUCH HERMANN DR
IPC: E04H12/28
Filed: 1978-09-23
Abstract: The inner lining is divided intos ections, one above the other, held by a support structure connected to the outside shaft, with an intervening space, in the chimney where the lining is supported, so as to withstand earthquake tremors. The lining (14) is divided into an outer (15) and an inner shell (17). An annular space (18) is formed by a radial gap between these, and partially or wholly filled with an insulating layer (16). The outer shell is enclosed by a support ring (20) connected to the shaft (10), pref. with a series of horizontally aligned supports providing the connection. These may be W-shaped.
Patent DE-2842162-A1 (DE)
Title: Thermoplastics scrap recovery plant - having material macerated by counter-rotating profiled rollers and passing to consolidating screw and final extruders
Inventor: KOLB GUENTER
IPC: B29C48/08
Filed: 1978-09-28
Abstract: Recovery plant for thermoplastics scrap has a heated body with an inlet, a consolidating device, and a feed screw rotating inside a passage; the inlet enters the side of that passage and leads to the consolidating device, and the plant has an extruder at the outlet of the passage. The consolidating device consists of two oppositely driven rollers on shafts parallel to that of the feeder screw. The rollers revolve to feed material to the passage, the rollers cross-section is a particular profile such that projections in the one roller fit into recesses in the other, and the material inlet extends along the full width of the gap between the rollers. Process is suitable for any physical form of scrap including film.
Patent DE-2843973-A1 (DE)
Title: Reducing friction in pile driving by electro=osmosis - using an encased insulated lead connected to the tip of the pile
Inventor: CHRISTENSON LOWELL BURTON
IPC: E02D7/00
Filed: 1978-10-09
Abstract: During pile driving the frictional resistance between the pile and the soil is decreased by directing an electrical current through the soil adjacent to the pile so that a film of water is moved along the surface of the pile by electro-osmosis. With a conductive pile the positive output from a DC source is connected to the tip of the pipe by an encases and insulated lead, the tip of the pile is insulated from the shaft and the negative output is preferably connected to the shaft but may also be immersed in the soil or in water overlying the soil. With a non conductive pile the negative output is connected to the tip while the positive is positioned in a layer of water above the soil so that water is moved downwards along the edge of the pile. The invention ensures that an electrical current is conducted to the tip of the pile to reduce friction by electro-osmosis and also allows for continuing the passage of a current after the pile has been driven to dry out and compact the soil.
Patent DE-2849191-A1 (DE)
Title: Casting device for fishing - comprises spool reel with handle and casting implement removably fitting into cavity in reel
Inventor: THORVALDSEN SVERRE
IPC: A01K89/08
Filed: 1978-11-13
Abstract: The device comprises a stationary spool reel having a cylindrical spooling portion (1) on which the line is wound, and a handle (2). A casting element (10, 11) is attached to the line and is shaped to fit a cavity (8) in the spooling portion (1). In use, the angler grasps the handle and casts with the axis of the reel extending in the direction of cast. The casting element (10, 11) may be a spinner, sinker or float.
Patent DE-2851073-A1 (DE)
Title: Horse bridle with Pelham or Kandahar bit - has adjustable length resilient straps in parallel with ends of rein
Inventor: REHBOCK GUENTHER DIPL ING
IPC: A01K15/04
Filed: 1978-11-25
Abstract: The bridle for a horse, with a Pelham or Kandahar bit, has a rein which divides at the front, under the horses head, with an extension which is non resilient. This terminates in a small ring, connecting to the upper portions for the mouth and nose. In parallel with the non resilient extension is a resilient part. When not subjected to tension, the length is less than the length of the non resilient part. This hooks at one end to one of several eyes on the rein and at the other end at a large ring attached to the nose portions.
Patent DE-2853114-A1 (DE)
Title: Spaced passing of continuously fed packs on moving conveyor - with sensor for leading pack applying brake to next following pack
Inventor: MARNAU DIETRICH
IPC: B65G47/29
Filed: 1978-12-08
Abstract: The spacing unit is intended for moving packs (4) from a production station (1) to a subsequent treatment station (2) by using a continuously moving conveyor (3) which forms a continuous row of packs and allows them through one by one with intermediate spaces to the station (2). Pivoting brake levers (9, 11, 12) are provided which sense (13, 14) the presence of a leading pack and actuate a brake (16) to engage and thereby stop the next following pack at a pre-determined distance from the leading pack. The pivoted (8) levers (9, 11, 12) have a feeler (13, 14) for a leading pack at one end and a brake shoe (16) for the next pack at the other.