baber/WOPTO huggingface dataset:
Patent GB-1241077-A (GB)
Title: Control system for an electrohydraulic
IPC: F15B9/14
Filed: 1969-11-21
Abstract: 1,241,077. Digital to analogue conversion. FUJITSU Ltd. 21 Nov., 1969 [21 Nov., 1968], No. 57221/69. Heading G4H. [Also in Divisions G3 and H2] In a control system for an electrohydraulic pulse motor, wherein a command pulse train is fed to the motor via a pulse train converter, the load on the motor is detected and used to control the converter so as to maintain the total gain of the system constant. An electrohydraulic motor 408, Fig. 4, comprises an electric stepping motor 409 driving a rotary pilot valve 410, for an hydraulic motor 411, which tends to be restored to the closed position through a screw-and-nut mechanism, not shown, by rotation of the motor 411. The positional error e 2  of the valve is dependent in the load on the motor 411 which is detected by pressure transducers, not shown, responsive to the hydraulic pressure drop across the motor 411, and having an output on a line 412. A computer or numerical control unit 401 develops a train of command pulses F, for carrying out a contouring operation, which are fed to count up a register 403 of a pulse train converter 402, deriving a train of encoded command pulses f for a pulse motor drive circuit 407 sequentially exciting the five stator windings of the electric pulse motor 409. The counter 403 is counted down by the command pulses f and the error e 1  control the pulse rate of an oscillator 404, subject to a modification by the load signal on line 412. The pulse train converter, Fig. 5, comprises a register 502 which receives the command pulses F on an input 501 and the command pulses f on the line 406, and presents the difference, in binary form on lines l20 to l2 n , to transistors Q0-Qn which are rendered conductive for a logic valve O. The associated diodes Do to Dn are then reverse-biased to disconnect the related resistor pairs R30, R40 to R3n, R4n from an oscillator 505, comprising a unijunction transistor Q5. The resistor pairs are weighted so that the frequency of the oscillator varies in dependence on the digital value in the register 502 and the oscillator output is fed through a wave-shaping amplifier 506, comprising transistors Q6, Q7 on a line 507 to the gate 405, Fig. 4. The capacitance of the oscillator emitter circuit is varied in dependence on the error e2, Fig. 4, by a relay network, not shown, actuating switches R1- Rn, associated with capacitors C 1 -Cn, responsive to a comparison between the output of the load-detecting pressure transducers and set reference voltages.
Patent GB-1350415-A (GB)
Title: Induction and exhaust systems for internal combustion engines
IPC: F01N3/20
Filed: 1971-12-10
Abstract: 1350415 Regulating I C engine exhaust gas recirculation ROBERT BOSCH GmbH 10 Dec 1971 [17 Dec 1970 31 Aug 1971] 57417/71 Heading F1B In an I. C. engine in which exhaust gas can be returned to the induction pipe via a line 25 containing a shut-off valve 35, the shut-off valve is controlled by a pair of switches 73, 74 so as to be closed only when the engine is idling or is being operated at full or almost full load, the switches being operable for this purpose by being coupled to the throttle valve 13, or, as shown, coupled to a flap 65 which is held by a spring in the full-line position when the engine is idling and is pivoted on its spindle 67 by the increased air-flow which occurs when the engine speed is increased or the throttle valve 13 is opened. The switches 73, 74 are actuated by an arm 72 connected to the spindle 67, the switch 73 being held open as shown during idling and the switch 74 being held open at or near full load, both switches being closed under other conditions. The switches 73, 74, which are connected in series with one another, operate the shut-off valve 35 via a transistor and an electromagnet 37, the electromagnet being energized to open the valve either directly or through a further magnetic means when both switches are closed. The switches may be arranged to close instead of open under the respective conditions of idling and full or near full load, and are in this case connected to the electromagnet 37 via a diodetransistor NOR circuit, Fig. 2 (not shown), so that the electromagnet is energized when both switches are open. Since the switches are isolated from one another by the diodes, they may also be used for additional control operations e.g., for increasing the fuel supply at full load or for switching off the fuel supply under enginebraking conditions. To obviate the effect of contact bounce or other intermittent contact the NOR circuit may include a Schmitt trigger, Fig. 4 (not shown), preceded by a time delay network with a delay time of at least 0À1 second. Additional switches may be provided, for closing the valve 35 when the engine temperature is below 10‹C or in dependance on ambient or air intake temperature, engine or vehicle speed or the selection of a particular gear ratio. A potentiometer 69, operated by the flap 65, supplies a control voltage indicative of the airflow to the fuel injection control means 17. The switches 73, 74 may be replaced by electronic threshold valve switches controlled by the potentiometer 69.
Patent GB-1384090-A (GB)
Title: Water-insoluble monoazo dyestuffs containing hydroxypyridone residues
IPC: C09B31/153
Filed: 1972-12-14
Abstract: 1384090 Disperse monoazo dyes BAYER AG 14 Dec 1972 [15 Dec 1971] 57713/72 Heading C4P New monoazo dyes, free from SO 3 H and COOH groups, of formula wherein D is a diazo component radical, R is H or an alkyl, aralkyl, cycloalkyl or aryl group X is CN or an optionally substituted carbamoyl or carboxylic ester group and A is H or an alkyl, aralkyl or acyl group are prepared by azo coupling with optional alkylation, aralkylation or cylation when A is H. The dyes are used to dye and print polyolefin, polyvinyl, cellulose ester and, in particular, polyester fabrics in yellow shades.
Patent GB-1340054-A (GB)
Title: Circuit control device
IPC: G06K7/04
Filed: 1970-12-07
Abstract: 1340054 Card readers ADDRESSOGRAPH MULTIGRAPH CORP 7 Dec 1970 [8 Dec 1969] 58109/70 Heading G4M A credit card DR, when inserted in a vertical carriage 24, pushes out a slide 96 which operates a switch 102 connected to energize a solenoid 92 which withdraws a blocking lever 84 so that carriage 24 is allowed to fall, with some spring assistance, to a lower position. The carriage is guided by a rod 22 and by a roller (not shown) which engages the rear face of side plate 12. During the downward movement of the carriage 24, a sensing head 114 is carried out of engagement with the card DR, and switch 102 is opened to de-energize solenoid 92, but lever 84 is unable to return to the blocking position because its roller 88 engages the side of carriage 24. When the carriage reaches the lower position; a switch 108 is closed to energize a motor driving a cam and linkage mechanism which raises the carriage 24 towards the upper, home position. During the upward movement, sensing head 114 is urged towards the card DR so that embossments thereon rotate toothed sensing wheels having associated contact sets for transmission of data to a remote station. The release of the carriage for movement in either direction may be delayed until receipt of a ready signal from the remote station. The card DR is correctly registered with respect to the sensing wheels by a spring urged plunger 104 engaging one edge of the card. The lateral position of the sensing head is also adjustable. When the carriage 24 returns to the home position the motor is deenergized and lever 84 is allowed to return to its blocking position beneath carriage 24. Until the card DR is at least partially removed from the carriage 24, slide 96 tilts actuator 100 to prevent re-operation of switch 102.
Patent GB-1362280-A (GB)
Title: Rubber-containing component and method of producing the same
IPC: C08J5/08
Filed: 1971-12-15
Abstract: 1362280 Coated product CLOUTH GUMMIWERKE AG 15 Dec 1971 [17 Dec 1970] 58312/71 Heading B2E Glass fibres, surrounded by a conventional dressing facilitating relative displacement and adhesion to non-rubber synthetic material, are embedded in polyvinyl chloride prior to the application of butadiene rubber material thereover. The latter material may be a blend with polyvinyl chloride, and a further layer of nitrile butadiene rubber, if desired blended with (unspecified) miscible elastomers, may be applied thereto. In preferred embodiments, (a) the polyvinyl chloride is set or partially gelled by heat before application of the rubber layer(s) and thereafter the polyvinyl chloride is fully gelled and the rubber vulcanised by a single heat treatment and (b) after setting the polyvinyl chloride, the embedded glass fibres are subdivided and during application of the rubber, pressure is applied in such a manner, e.g. by calendering, as to incorporate and orientate the subdivided fibres in the rubber.
Patent GB-1221229-A (GB)
Title: Labyrinth seal
IPC: F01D11/00
Filed: 1968-12-09
Abstract: 1,221,229. Turbines - inter-stage seals. GARRETT CORP. Dec.9, 1968 [Dec.11, 1967], No.58334/68. Heading F1T. [Also in Division F2] The invention relates to a labyrinth seal between two relatively movable members wherein one member carries a layer of material having a melting point not less than 1200‹ F. in a porous rub-tolerant form which is capable of being deformed when subjected to the application of localized force, the other member carrying two or more spaced continuous ribs having thin edges which extend in the direction of relative movement, movement being normally spaced by a small clearance of 0À002 to 0À006 inch from the deformable layer but liable to engage it in operation and then acting to deform the material so as to form a groove with the deformed material at one or each side thereof. The invention is described with reference to a labyrinth seal between two rotor discs 13 of a turbine and adjacent stator structure 17, a sleeve 15 formed with fins or ribs 16 being secured to one disc 13 and a tubular sleeve 18 coated internally with a layer of deformable material 24 being secured to the stator structure. An initial clearance is provided between the ribs 16 and the layer 24 as shown in Fig.2 but in operation the ribs may contact the layer as shown in Fig. 3 whereby annular grooves 26 are formed in the layer, the material of the layer being deformed and forming ridges 27. Relative axial movement of the parts is also indicated in Fig.3. The deformable layer may be formed of porous material such as sintered metallic fibre. The layer may be formed by flame spraying. It may be formed of a material containing aluminium or silver; it may be formed of a material containing aluminium and nickel, or silver and manganese. The edges of the ribs 16 may be coated with a layer of wearresisting material such as molybdenum.
Patent GB-1446629-A (GB)
Title: Phase locked loop transmitter
IPC: H03L7/16
Filed: 1973-12-18
Abstract: 1446629 Automatic frequency control; transistor amplifiers INTERNATIONAL STANDARD ELECTRIC CORP 18 Dec 1973 [29 Dec 1972] 58470/73 Headings H3A and H3T A phase locked loop transmitter modulated by a source of signals AMP1 includes within the loop a phase comparator PD1 whose output is coupled to a voltage controlled oscillator VCD1 which provids, via a frequency multiplier HTP1, a first input to the phase comparator and further comprises outside the loop: a source of oscillation OSC3 which applies a signal to one input of a mixer MIX which receives the modulation signal as its other input, and whose output is applied to the second input of the phase comparator PD1; and a second frequency multiplier MTP2 to which the output of oscillator VCO1 is fed. The output from the phase comparator is applied to the control input of the voltage controlled oscillator VCO via an amplifier AMP2. As shown in detail in Fig. 3, this amplifier comprises two similar two-stage sections AMP2, AMP22. The input signal is applied to the base of transistor Tl, the base of the corresponding transistor in the other being earthed via capacitor C3. The output is traken from the collector of transistor T2, and the frequency response is improved by shunting the collector load of the transistor corresponding to Tl in amplifier AMP22 with a capacitor C7.
Patent GB-1376388-A (GB)
Title: Process for the preparation of resins from urea and formaldehyde
IPC: B27N3/02
Filed: 1972-12-20
Abstract: 1376388 Plywood SOC ITALIANA RESINE SIR SpA 20 Dec 1972 [27 Dec 1971] 58963/72 Heading B5L [Also in Division C3] Plywood is glued with a resin obtained by condensing urea with formaldehyde first at U : F ratio 1 : 2-plus, pH 8-9À5 and 60-95 C., then at pH 4À0-5À5, neutralizing to pH 6À8-7À5, then condensing at pH 5À7-6À8, still at 60-95 C., while the U : F ratio is brought to 1 : 1À4-1À65, then cooling and adjusting to pH#8. In the examples such a resin is mixed with water, an organic flour and NH 4 Cl and applied to wood plies, of which an odd number are stacked cross-plied and pressed to form plywood.
Patent GB-1438319-A (GB)
Title: Flat panel gas-discharge display apparatus
IPC: H01J17/49
Filed: 1973-12-20
Abstract: 1438319 Gas discharge display panels SONY CORP 20 Dec 1973 [21 Dec 1972] 59094/73 Heading H1D A gas discharge display panel comprises insulating plates 12, 14 each having a set of mutually parallel electrodes 11, 15 the two setsbeing arranged to intersect and the plate 12 also having parallel barrier ribs 13 intersecting the electrodes 11 and parallel to electrodes 15. Barrier electrodes 16 coinciding with ribs 13 provide additional protection against crosstalk. The discharge space can be filled with neon and argon at a pressure of 460 Torr. A phosphor may be coated on the ribs 13.
Patent GB-1410818-A (GB)
Title: Lens
IPC: G02B6/028
Filed: 1972-12-21
Abstract: 1410818 Glass lens NIPPON SELFOC CO Ltd 21 Dec 1972 [25 Dec 1971] 59298/72 Heading C1M [Also in Division G2] A glass lens has a refractive index gradient such that where N is the refractive index at a perpendicular distance r from the central optical axis of the lens, and where the index at the central axis is N 0  and a is a positive constant; the glass at the central axis comprising, in mole per cent and, optionally, other compatible ingredients; the cµsium ion concentration decreasing outwardly from the central axis to the peripheral surface to provide said refractive index gradient; the lens having a diameter of 0À2-5 mm.; the difference between N 0  and the index N 1  at the peripheral surface being at least 0À003; and being less than 0À05, where P is the P value for D line light (589 mÁ), and #P is P C -P F , where P C  and P F  are the P values for C (656 mÁ) and F (486 mÁ) line light. The lens, which is preferably at least 50 mm. long, may be prepared by contacting a rod of the above composition with a melt of a salt of at least one of Li, Na, K and Rb at 400-600 C. (e.g. for 120-180 hours) to cause appropriate ion exchange. The salt may be NaNO 3 , KNO 3  or a K 2 SO 4 /ZnSO 4  mixture. A surface layer of the ion-exchanged rod may then be removed with a 3 wt. per cent aqueous hydrofluoric acid solution. The glass of the rod treated may additionally comprise 0-30 mole per cent each of Na 2 O, K 2 O and Rb 2 O; 0-10% Li 2 O, with the proviso that Cs 2 O + Na 2 O + K 2 O +Rb 2 O+Li 2 O is 2-50; 0-20% in total of at least one of ZnO, CaO and MgO; and 0-10% in total of at least one of PbO, BaO, Al 2 O 3  and La 2 O 3 .
Patent GB-1281535-A (GB)
Title: An improved electrical connector
Inventor: TAYLOR JAMES MURRAY
IPC: H01R4/28
Filed: 1968-12-13
Abstract: 1281535 Electrical connector BICCBURNDY 12 Dec 1969 [13 Dec 1968] 59365/68 Heading H2E An electrical connector comprises a spring contact 1 a rigid terminal 4 and an insulating housing 7. The contact 1 and terminal 4 project from opposite ends of an aperture 6 in the housing 7 being retained by engagement of the curved root 3 of contact 1 with the root 5 of the terminal 4 and the walls of the aperture, the curved root 3 being deformed by this engagement. Steps are provided in the housing to limit entry of the contact and terminal, engaging the end of the terminal 4 and the shoulders 9 of the contact 1. A plurality of such contactterminal arrangements are located in the housing to form an edge-connector for a printed circuit board.
Patent GB-1210110-A (GB)
Title: Improvements in piezoelectric ignition devices
IPC: F23Q3/00
Filed: 1968-12-16
Abstract: 1,210,110. Piezo-elactric generators. JUNKERS & CO. G.m.b.H. 16 Dec., 1968 [21 Dec., 1967], No. 59614/68. Heading H2A. A piezo-electric igniter has a cylindrical housing 10 roll-formed from a metal plate 100, Fig. 5, having complementary dove-tail cut-outs and projections 104, 103 on opposite longitudinal edges which interengage to form a keyed joint, the plate also having projections 105 which extend radially outwardly of the housing to form stops and depressions 106 extending inwardly of the housing to form stops for a ring 13 carrying spring arms 25 formed with detents 24 which engage the head 22 of a striker 21. A piezo-element carrier 15 is held in one end of the housing by bent-over lugs 109 and a push-button 18 is retained in the other end of the housing by a rolled-over rim 110. Depression of the push-button against a return spring 20 compresses a spring 23 against the striker head 22 until a chamfered edge on the push-button forces apart the detents 24 whereupon spring 23 drives the striker into engagement with the pin 27 of the piezo element.
Patent GB-1327880-A (GB)
Title: Brassidoyl propylene glycol hydrogen succinate and shortening containing same
IPC: A23D9/013
Filed: 1971-12-22
Abstract: 1327880 Brassidoyl propylene glycol hydrogen succinate PROCTER & GAMBLE CO 22 Dec 1971 [29 Dec 1970] 59639/71 Heading C2C [Also in Division C5] The novel compound brassidoyl propylene glycol hydrogen succinate prepared by reacting the propylene glycol monoester of brassidic acid with succinic anhydride is used as a liquid shortening additive in food compositions (see Division C5).
Patent GB-1321938-A (GB)
Title: Benzodiazepine derivatives and a process for the manjfacture thereof
IPC: C07D498/04
Filed: 1971-12-23
Abstract: 1321938 Benzodiazepines F HOFFMANNLA ROCHE & CO AG 23 Dec 1971 [23 Dec 1970] 59980/71 Heading C2C Compounds of the general formula (R, R<SP>1</SP>, R<SP>2</SP> = H, C 1-7  alkyl; R<SP>3</SP>=H, halogen; R<SP>4,5</SP>=H or R<SP>4+5</SP>= additional bond; R<SP>6,7</SP> alone or together = moiety removable by acid hydrolysis), 4-oxides of the dihydrobenzodiazepines and acid addition salts of the basic compounds are prepared by cyclizing a compound of the formula optionally followed by one or more of the steps reduction, oxidation, alkylation, salt formation. The above compounds are muscle relaxants, sedatives and anticonvulsants, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-1415110-A (GB)
Title: Ground channel guide for sliding doors
IPC: E05D15/06
Filed: 1973-12-31
Abstract: 1415110 Sliding door guide HILLALDAM COBURN Ltd 31 Dec 1973 60209/73 Heading E1J A sliding door guide recessed into a concrete floor comprises a U-shaped channel the side walls 3, 4 of which are bent outwardly through 180‹ to form double-thickness walls 3, 7 and 4, 8; the lower edges of 7, 8 are flared out 9, 10. The channel may be formed from a strip or coil of light gauge galvanized sheet steel without the use of heavy machinery but has the strength to withstand the passage of vehicles.
Patent GB-1236878-A (GB)
Title: Fluid pressure transmission apparatus
IPC: F01D17/08
Filed: 1969-12-11
Abstract: 1,236,878. Turbine and compressor motors; compressors. GENERAL MOTORS CORP. Dec. 11, 1969 [Dec. 19, 1968], No. 60477/69. Headings F1C and F1T. The invention relates to apparatus for transmitting fluid-pressure from a rotary machine such as a turbine or compressor, the invention being described with reference to a gas turbine engine in which the pressure in space 15 between two turbine rotor discs is to be measured at gauge 22. The rotor shaft 10 is hollow and a tubular member 17 is screwed in the end thereof, a tube 14 interconnecting the space 15 and a space 31 within the tubular member. The space 31 is defined within the member 17 by a bearing arrangement 34 in which a hollow stationary shaft 18 is mounted for angular and axial movement. The bearing comprises an outer part-spherical member 35 and an inner part-spherical member 37 with a layer of anti-friction material 38 therebetween; also an inner sleeve 39 within which the hollow shaft 18 is mounted. The shaft 18 is mounted at its other end in a further bearing 43 comprising partspherical members. Oil is supplied into the shaft 18 by pump 23 and inlet 45, the oil passing through ports in the bearing arrangement 34 and leaking into the chamber 31; a duct 19 extends through the shaft 18 to transmit pressure from the chamber 31 and so from the rotor space 15 to the gauge 22; the ends of the shaft 18 are sealed around the duct 19 by annular plugs 46. The chamber 31 is connected by drillings 58, 61 to one end of a U- shaped pipe 63, the other end of the pipe 63 being connected to the open chamber 33 within the tubular member 17. The arrangement is such that oil leaking into the chamber 31 from the bearing 34 passes to the U-tube 63 where it forms a centrifugal oil trap to prevent leakage of pressure fluid from the cavity 31.
Patent GB-1255949-A (GB)
Title: Improvements in or relating to sealing of concrete components
Inventor: GAUTIER GEORG
IPC: E21D11/38
Filed: 1968-12-20
Abstract: 1,255,949. Expansion joints; wells &c. G. GAUTIER. 20 Dec., 1968 [21 Dec., 1967], No. 60545/68. Headings E1B and E1F. A method of sealing a joint 9 between concrete members in a tunnel lining comprises treating the dotted line areas 2, 2' of the members define the point with an epoxy resin, attaching a plastics strip 3 thereto using an epoxy resin and filling the space 6 with mortar. Auxilliary seals 4, 4' and a bearing member 7 are also provided. In a second embodiment a tubular seal element is bonded in a groove formed by rabbets at the edges of adjacent concrete elements.