baber/WOPTO huggingface dataset:
Patent GB-1217820-A (GB)
Title: Fuel supply systems for internal combustion engines
IPC: F02M69/18
Filed: 1966-10-07
Abstract: 1,217,820. Fuel injection systems for I.C. engines. JOSEPH LUCAS (INDUSTRIES) Ltd. Jan.3, 1968 [Oct. 7, 1966], No.44753/70. Divided out of 1, 216, 462. Heading F1B. Fuel is supplied to a plurality of nozzles 65 in an intake manifold 60 with an air throttle valve 62 by a pump 74 through metering and distributing apparatus 66, 71. The delivery of the metering and distributing apparatus is controlled by a cam 95 which determines the position of the stop 69 for the metering shuttle 68. The cam 95 is mounted on a lever 102 connected by a lever 100 to a part 99 angularly adjustable by a bi-metallic element 84 and a valve member 87 operated by an evacuated capsule 85. The element 84 and capsule 85 are subjected to manifold air temperature and pressure conditions. The lever 102 is also connected to a piston 91 subjected on opposite sides to the pump output pressure and the pressure of fuel between a restriction in a passage 92, connecting opposite sides of the piston, and the valve member 87 which controls a spill passage 93, 94 to the pump inlet. The capsule 85 has a compartment 104 connected to the engine exhaust system. The distributer 71 includes a disc rotated through a shaft 72 by the engine. An electrically driven pump 78 to provide fuel for starting is connected in parallel with the engine driven gear pump 74 drawing fuel from a reservoir 75 through a filter 76. The pumps are provided with a pressure-relief by-pass valve 80. The nozzles 65 are located downstream of a turbosupercharger 61 and immediately upstream of respective engine cylinder intake valves. To provide excess fuel for starting the shuttle stop 70 may be adjusted by a manually-operable cam 107. The stop 70 may be moved to prevent shuttle operation and therefore fuel delivery.
Patent GB-1522117-A (GB)
Title: Optical switch assembly
IPC: H03K17/968
Filed: 1976-10-28
Abstract: 1522117 Switching assembly OPTO-MECH Inc 28 Oct 1976 44855/76 Heading G1A In a switching assembly using a plurality of optical couplers 25 1  .... 25 n  and a plurality of pairs 22, 23 of marked shutter discs are mounted on a common rotatable shaft 11. The discs 22, 23 are clamped into position on a hub 31, Fig. 2, as shown, by means of nuts 36, 46 engaging a threaded portion of the hub 31 and a threaded sleeve of one of the discs 22. The hub is held in position on the shaft by means of a pin 39 engaging a pair of diametrically opposed holes 38 in the hub and a bore 37 in the shaft. The discs may have a number of different radial opaque patterns, Figs. 3A, B, C, D (not shown) depending upon what type of switching is required. Also one of the discs may have concentric opaque rings to improve the signal and tolerance to small alignment inaccuracies. The rim 34 of the flange of the hub 31 and one of the discs may be marked in degrees to aid alignment. A typical circuit for the optic electric coupler is disclosed, Fig. 4 (not shown).
Patent GB-1062523-A (GB)
Title: Improvements in and relating to electrical waveform generators
Inventor: WARD JOHN JOSEPH
IPC: H03K4/02
Filed: 1961-12-19
Abstract: 1,062,523. Electric analogue calculating. SPECTO Ltd. March 19, 1963 [Dec. 19, 1961], No. 45420/61. Heading G4G. [Also in Division H3] A waveform generator comprises a plurality of resistors connected via a common resistor to the input of a virtual-earth amplifier, current being switched in sequence through the resistors so as to develop the required waveform, the common resistor determining the effective load on the plurality of resistors. In Fig. 6 pulses are fed in sequence to a series arrangement of resistors (R1 ... R26) and via a high value resistor R L <SP>1</SP> to the virtual-earth amplifier Tr4. The input voltage may assume a staircase waveform which is converted to a sawtooth waveform by a feedback capacitor (C fb ). Current from other resistor arrangements may be fed in under control of gating transistors (Tr1 ... Tr3). A buffer amplifier and low-pass filter (Fig. 3, not shown) may be interposed between the resistors and the amplifier. In Fig. 1 (not shown) current pulses are fed in sequentially via parallel resistors. Reference has been directed by the Comptroller to Specification 895,201.
Patent GB-1145946-A (GB)
Title: Dc motor control circuit
IPC: H02P7/288
Filed: 1967-10-05
Abstract: 1,145,946. Automatic speed control. TOKYO KAGAKU K.K. Oct. 5, 1967 [Dec.27, 1966], No.45488/67. Heading G3R. [Also in Division H2] A machine having a motor unit M and a generator unit G on a common shaft is supplied from battery B through transistor Tr2, a transistor Tr1 being controlled in accordance with the difference between the output voltage of the generator and the Zener voltage of diode D. If the speed of the motor tends to decrease, the collector current of the transistor Tr1 increases whereby the transistor Tr2 becomes more conductive to stabilize the speed of the motor. The speed is set at a desired value by adjusting resistor R or by selecting the characteristics of the diode D. The machine comprises a casing 1 of magnetic material with stator magnets 3a, 3b. The laminated rotor 4 has three poles 6 each carrying separate windings 7, 8, at upper and lower portions thereof. Alternatively, the rotor windings may be wound in layers one on the other, or together in parallel on each pole 6. Winding 7 is connected to commutator 9 associated with motor brushes 11, whilst winding 8 is connected to commutator 10 having generator brushes 12. The brushes are attached to the casing 1 through insulators 17.
Patent GB-992591-A (GB)
Title: Improvements relating to diaphragm pumps
Inventor: ALLEN RONALD NOEL
IPC: F04B43/02
Filed: 1961-12-19
Abstract: 992,591. Diaphragm pumps. ARTHUR LYON & CO. (ENGINEERS) Ltd. Dec. 19, 1962 [Dec. 19, 1961], No. 45490/61. Heading F1A. In a bucket diaphragm pump for liquids and semi-solids comprising spaced apart reciprocable diaphragms 18, 25, liquid is drawn through an inlet valve 13 and delivered through a bucket valve 22 to an outlet 17, and a leak-off passage is provided between a pressure relief valve 31 and its seating to provide lubrication of the upper surface of diaphragm 25. The pump is driven through a crank 45, e.g. by an electric motor. Specification 992,591 is referred to.
Patent GB-1438216-A (GB)
Title: Production of secondary alkyl primary amines
IPC: B01J21/04
Filed: 1974-10-21
Abstract: 1438216 Secondary alkyl primary amines TEXACO DEVELOPMENT CORP 21 Oct 1974 [26 Dec 1973] 45517/74 Heading C2C A process for producing secondary alkyl primary amines comprises nitrating a portion of a C 6 -C 30  n-paraffin charge to form a secondary mono-nitroparaffin along with nitrated and oxygenated by-products, hydrogenating the secondary mono-nitroparaffin to give the secondary alkyl primary amine, separating the amine from the mixture of unreacted paraffin, unconverted secondary mono-nitroparaffin and by-products, hydrogenating the mixture in the presence of a hydrogenation catalyst at hydrogen pressures of 100 to 1500 p.s.i.g., in a plurality of reaction zones in series, the initial hydrogenation being conducted at a temperature of from 250 to 500 C. and subsequent hydrogenation being conducted at a temperature of from 600 to 750 F., and recycling the hydrogenated product for nitration with the n-paraffin.
Patent GB-965622-A (GB)
Title: Process for preparing carbon fibres
IPC: D01F9/32
Filed: 1962-12-04
Abstract: Carbon fibres are produced by heating nonthermoplastic cellulosic fibres at successively higher temperature steps to 700 DEG  F., thus driving off volatile tars, and then firing at above 1000 DEG  F. but below graphitization temperature for a time sufficient to heat-stabilize and shrink the fibres.  The final firing tempera ture may be 2000 DEG  F.  Ether-extractable finish materials are preferably previously removed from the cellulosic fibres, for example by scouring, rinsing and drying, and a flameproofing agent may be applied to the dried fibres.  Either batch or continuous firing furnaces may be used.  The initial heating steps are preferably performed in a closed or inert atmosphere, but oxidizing atmospheres may also be used.  After the step-wise heating, the material may be cooled before the firing step. After the firing step, the fibres are preferably quenched to prevent pre-ignition.  The fibres may be in fabric, skein, yarn, rovings or loose mass form.  The product may contain e.g. 94% C.; the fibres are non-crystalline and non-graphitic, have low thermal conductivity, and sublime at 6300-6600 DEG F.  The fibre strengths are greater than those of graphite fibres.
Patent GB-1245282-A (GB)
Title: Improvements in and relating to molecular gas ring lasers
IPC: H01S3/139
Filed: 1968-09-26
Abstract: 1,245,282. Lasers. HONEYWELL Inc. 26 Sept., 1968 [17 Oct., 1967], No. 45852/68. Heading H1C. [Also in Division G1] In order to frequency stabilize a molecular gas ring laser in which the ring laser is biased so that two different frequency beams are generated at the same time in counter-rotating directions the intensities of the two counterrotating beams are measured and the laser cavity is tuned in accordance with a signal indicative of any difference in intensity between the two counter-rotating beams so as to maintain the intensities of the two beams equal and thereby maintain the frequencies at constant values. A molecular gas such as carbon dioxide and nitrogen and helium from supply 26 flows through the right and left hand sides of a triangular path in quartz block 10 and out through 32. One of the paths is provided at 34 with a small constriction whereby the unbalanced flow of gases causes the laser to be biased such that the gains in the anti-clockwise 24 and clockwise 22 directions are different due to doppler shift. Thus for any signal transition frequency the gain of one beam is higher than the other and only this beam will lase at a time. If the cavity is gradually tuned the frequency of the lasing beam is forced to gradually change and the intensity of the beam increases or decreases whilst the other beam decreases or increases. A point is reached, Fig. 2 (not shown), where the intensities of the two beams are equal since as the clockwise beam from one transition decreases to zero a counter clockwise beam is generated from a new transition which new transition draws on an entirely different supply of atoms than the original transition. Both beams therefore operate at the same time and at this point frequency stabilization is achieved by maintaining the intensities of beams 22, 24 equal. This is achieved by passing the two beams through a chopper 44 to photodetector 46, the chopper alternately passing first one beam and then the other on to detector 46. If the intensities of the beams differ a signal is passed to phase demodulator 48 which determines which of the two beams has the higher intensity. A corresponding signal is generated on lead 56 so that transducer 20 moves mirror 16 to adjust the cavity length to bring the two intensities equal again. The laser could be sealed and a bias generated by use of the Langmuir flow between anodes 15 and cathode 13.
Patent GB-1082487-A (GB)
Title: Improvements in or relating to waveguide structures
Inventor: WOO KENNETH WHA
IPC: H01P1/165
Filed: 1964-11-11
Abstract: 1,082,487. Phase equalizers. WESTERN ELECTRIC CO. Inc. Nov. 11, 1964 [Nov. 12, 1963], No. 45880/64. Heading H1W. The cut-off frequency of a waveguide is progressively varied along its axis by means of a longitudinal perturbing member which extends from a region of high electric field intensity to a region of high magnetic field intensity. As shown, a conductive rod 20 lies in a longitudinal plane normal to the electric field of TE 11  mode waves propagated in a round guide 21. One end of the rod lies near the centre of the guide near the region of maximum electric field and causes an increase in the effective cross-section of the guide. The other end lies near the wall of the guide in a region of high magnetic field intensity and causes a decrease in the effective cross-section. In the delay equalizer shown, progressively higher frequency components of an input signal are reflected back to the input waveguide 60 as the signal propagates along the waveguide 21. The delay characteristic may be adjusted by adjusting the positions of the end of the rod in slot 64 and by bending the rod by altering the tension in nylon threads 67. The circular waveguide 21 may be replaced by a rectangular one. The input waveguide 60 is connected to the intermediate port of a three-port circulator, the other two ports respectively furnishing the input and output terminals of the equalizer.
Patent GB-1071099-A (GB)
Title: Improvements in or relating to washing machine drive units
IPC: F16D59/02
Filed: 1964-11-11
Abstract: 1,071,099. Washing machines. FICHTEL & SACHS A.G. Nov. 11, 1964 [Nov. 13, 1963], No. 45909/64. Heading D1A. [Also in Division F2] A washing machine having a gear shift mechanism includes a V-belt drive pulley (1) through which the washing drum is driven at low speed for washing and rinsing and at high speed for hydro-extraction wherein the drum is braked after hydroextraction by a spring-loaded band brake 8 operating on the V-belt pulley and held out of action by an electromagnet 2. Band brake 8 encircles a projection 9 on pulley 1 and has one end secured directly to pin 11 and the other end connected by a tension spring 12 to pin 11. Spring 12 is connected to armature 7 by a member 13 and an eccentric pin 14 which adjusts the tension in the spring. Electromagnet 2 is articulated by screw 3 to a boss 4 on the gear box 5. When spin drying is completed, the electromagnet is de-energized and the brake is applied by spring 12.
Patent GB-1276126-A (GB)
Title: Improvements in or relating to vertically adjustable platforms
Inventor: MEIJ JOHANNES NICOLAS JOZEF VA
IPC: A61G7/012
Filed: 1969-09-19
Abstract: 1276126 Vertically adjustable bed J N J VAN DER MEIJ 19 Sept 1969 46275/69 Heading A4J The vertical adjustment is powered by linnon springs 12, 13 acting on a sector plate 9 pivoted at 30, spring 12 having a fixed point 17 of application and spring 13 being secured to a block 14 adjustably slidable in an arcuate track 15 between extreme positions when it completely opposes, or augments, the other spring. Thus the effective spring force (which is applied to urge the bed upwardly) may be varied. This is done by windlass arrangement 26 and cable 19.
Patent GB-1121192-A (GB)
Title: System of linear systematic coding
IPC: H03M13/13
Filed: 1965-11-03
Abstract: 1,121,192. Deriving check elements. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 3 Nov., 1965 [10 Nov., 1964], No. 46529/65. Heading G4A. Apparatus for deriving binary check elements from the binary elements of a code word comprises a chain of coding registers A 1  . . . A n , the register A j+  1  receiving on closure of a switch S j , V j  binary check bits derived in the register A j  which are then operated on in the register A j+  1  to produce V j+  1  check bits. In the form shown (Fig. 1) the input elements of a binary word are fed direct via a switch S u  to an output line L 2  and the elements are also passed through the coding registers A 1  . . . A n  so that when the switch is moved to its other position the check bits are read from the last register A n  to the lead L 2 . To check for errors at the decoder (Fig. 2, not shown) the word, as well as being fed into a store (C) is also fed through similar coding registers (A 1  . . . A n ) the check bits received over the line L 3  being also fed to the register (A n ) so that if the word has been correctly transmitted the final contents of the last register are zero.
Patent GB-1168400-A (GB)
Title: Elastomers
IPC: C08F236/04
Filed: 1968-10-02
Abstract: 1,168,400. Elastomers. B. F. GOODRICH CO. 2 Oct., 1968, No. 46667/68. Heading C3P. An elastomer comprises 25-50 parts of methacrylonitrile, 0À5-1À5 parts of an alkylene glycol dimethacrylate in which the alkylene radical contains 2-6 carbon atoms and 50- 75 parts of butadiene 1, 3. The dimethacrylate is preferably ethylene glycol dimethacrylate. In the example, the monomers are polymerized in an aqueous emulsion system in the presence of a rosin soap, a sodium naphthalene sulphonate mixture, trisodium phosphate; tetrasodium ethylenediamine tetra acetate, mercaptons, monosodiumferric ethylenediamine tetraacetate, sodium formaldehyde sulphoxylate and cumene hydroperoxide. The polymers are stabilized with a cresol, and can be vulcanized.
Patent GB-931856-A (GB)
Title: A method for producing a surface layer of increased brightness on lignocellulose containing material
IPC: D21J1/00
Filed: 1961-12-29
Abstract: In a method of producing a surface layer of increased brightness on lignocellulose-containing material having a basis weight of at least two hundred gms. per square metre, a reducing bleaching agent is applied e.g. by spraying in combination with air or water) to the ready dried or drying material without subsequent removal of degradation products.  The material may be porous or semi-hard building board, cardboard, box board, multi-form material of the papier-mache type or groundwood. Suitable bleaching agents are aqueous solutions of sodium or zinc hydrosulphite, possibly with the addition of sodium ethylenediamine tetracetate, sodium borohydride, zinc formaldehydesulfoxylate or combinations of these substances. Examples with percentages of bleaching agent, material temperatures and increased brightness are given.
Patent GB-1516570-A (GB)
Title: Dispensing device
IPC: A47K10/38
Filed: 1976-11-10
Abstract: 1516570 Roll-holders E L THEUNISSEN 10 Nov 1976 46860/76 Heading B8M One-way insertion means 16 are pressed radially outwardly of a tubular roll holder during end-wise insertion of paper rolls through an inlet opening 15 of the holder, and then return to their initial position after the rolls have gone past them to prevent the rolls from being taken out of the opening 15. The holder is adapted to be secured to a wall, e.g. by brackets (30), (32) Fig. 3 (not shown), and includes openings 24, 26 for dispensing paper from a roll. Only one movable one-way insertion means may be provided instead of the tongues 16 which may be a flexible tongue, or a member hinged to the inner wall of the holder housing 12 and biased by a spring or by gravity. The housing may be circular, square, or rectangular. The spring 15 may be oval shaped. Observation openings 18, 20 may be provided.
Patent GB-469349-A (GB)
Abstract: 469,349. Washing granular materials. LOGUE, L. H. May 6, 1936, No. 12779. Convention date, May 6, 1935. [Class 82 (ii)] The capacity of the hutch of a jig is defined by a flexible diaphragm, the diaphragm being flexed alternately to increase and decrease the capacity of the hutch and cause the water to pulsate by means of a rocking lever connected to a rotary driving shaft. The driving shaft also operates means for adding water under pressure to the hutch when the diaphragm is flexed to increase the hutch capacity. The drawings show two jig washers in series each comprising a hutch 5 which tapers downwardly to a controlled concentrates discharge 10 and is bounded on one side of a partition 16 by a diaphragm 34 of rubber or like material which is connected to the walls of the hutch and to a central metal plate 37. On the other side of the partition 16 the walls of the washer extend upwardly to accommodate a screen box comprising a fine screen 29 supported on rods 30 and an upper coarse inclined screen 31 which does not extend right across the screen box. The screen boxes are readily removable and in the form shown one carries an inlet shoot 14 and the other an outlet shoot 13 and they are joined by a connecting shoot 15. The screens 31 prevent coarse material from passing on to the screens 29 on which the finer material is stratified, the concentrates, e.g. gold, passing into the hutch. The metal plates 37 of the diaphragms 34 are joined by rods 50 to a rocking lever 39 which oscillates about a pivot 40 and is driven by an eccentric 42 on a driving shaft 43. On the shaft 43 is mounted a valve member 48a having a flange 57, the member 48a rotating in a casing 48 to which water is admitted by a pipe 53 and which supplies water to the two hutches by pipes 55, 56. The rotary valve is so arranged that water passes only through the pipe leading to the hutch in which the diaphragm is moving upwardly so that suction on the bed is prevented.
Patent GB-1451695-A (GB)
Title: Process for polymerizing phenols to produce polyphenylene oxides  of low molecular weight
IPC: C08G65/44
Filed: 1974-10-30
Abstract: 1451695 Polyphenylene ethers MITSUBISHI GAS CHEMICAL CO Inc 30 Oct 1974 [2 Nov 1973] 47020/74 Heading C3R In a process for producing polyphenylene ethers by reacting a phenol with elemental oxygen in the presence of a catalyst, there is used a solvent in an amount from 1 to 6 times the weight of the phenol and the phenol is added gradually or intermittently to the reaction medium as the reaction proceeds. Examples are given.
Patent GB-1178891-A (GB)
Title: Polymers of O-Acrylyl- and O-Methacrylylamidoximes
IPC: C08F20/22
Filed: 1967-10-16
Abstract: 1,178,891. Coated fabrics. J. R. GEIGY A. G. 16 Oct., 1967 [17 Oct., 1966 (<SP>2</SP>)], No. 47081/67. Heading B2E. [Also in Divisions C2 and C3] Fabrics are rendered oil-and water repellent by coating with a homopolymer or co-polymer of a compound of the general formula: wherein R is C n X 2n+1 , monocarbocyclic aryl or alkylmonocarbocyclic aryl, n is integer of 1-18; X=H or F, R 1  is H or methyl, and addition salts thereof. Cotton and wool fabrics are treated with a 2% solution of the various polymers in, for example, hexafluoroxyleneethyl acetate. The polymers used include poly (O-methacrylyl perfluorooctanoamidoxime) a copolymer of O-methacrylyl perfluorootanoamidoxime and N-octylmethacrylate, poly-(O- methacrylyl acetamidoxime), poly-(O-methacrylyl propioamidoxime hydrochloride) and copolymers of O-methacrylyl perfluorooctanoamidoxime with ethylene and vinyl chloride.
Patent GB-1096292-A (GB)
Title: Locomotive
Inventor: KELLY JOSEPH WILLIAM EDWARD
IPC: B61C13/04
Filed: 1964-11-19
Abstract: 1,096,292. Locomotives; single rail vehicles. QUALTER, HALL & CO. (SALES), Ltd. Nov. 18, 1965 [Nov. 19, 1964], No. 47206/64. Heading B7L. [Also in Division F2] A monorail locomotive comprises a body 1, Fig. 1, suspended from the upper surface of a rail 10 by running wheels 8 swivellably mounted in bogies 9 on the body, and a driven and braking wheel 5 engaging the lower surface of the rail, the wheel 5 being mounted between side plates 11, pivoted at 13 to the body 1 and pivotally connected at 15 to the lower end of an hydraulic piston and cylinder link 6, whose upper end is also pivoted to the body 1. The wheel 5 is driven from a drive motor 2 on the body 1 via an hydraulic torque converter 7, a reduction gear 3 and an extensible drive shaft 4. The invention is characterised in that the pressure of the wheel 5 on the track 10 varies in accordance with the pressure in the torque converter at a point where the pressure is a function of torque. This is effected by connecting the converter 7 to the cylinder of the link 6 by a pipe 20. The piston of the link is urged upwardly by a spring as described with reference to Fig. 2 (not shown).
Patent GB-1148768-A (GB)
Title: Improvements in or relating to spanners
Inventor: JONES JOHN BRIAN
IPC: B60T17/22
Filed: 1966-10-21
Abstract: 1,148,768. Spanners. GIRLING Ltd. 13 Oct., 1967 [21 Oct., 1966], No. 47372/66. Heading B4W. [Also in Division F2] A spanner for adjusting a disc-brake comprises a circular spanner element 1, having a circular row of recesses 2, and a lever 7 rotatably mounted on a central stem 6, and having a downward projection 8, for engagement in a recess 2. The lever 7 is movable radially of element 1 due to an elongated slot and spring 20, 21. Element 1 comprises a disc 1A, and a locking plate 1B, riveted together, the latter having an hexagonal aperture for engagement with a nut.