baber/WOPTO huggingface dataset:
Patent GB-1002612-A (GB)
Title: Lubricant for use in the hot extrusion of metals and metal alloys
IPC: B21C23/32
Filed: 1960-12-09
Abstract: A lubricant for use in hot extruding metals and alloys comprises a substance produced from geologically unaltered basaltic rock crushed into granular form and from which sulphur and fluorine-bearing minerals are absent or have been removed where it is known they would harm the extruded materials, and which has been partially or fully melted with subsequent controlled cooling at a rate which produces, after solidification, that mineralogical structure suited to the requirements of viscosity, melting range, and other properties called for by the conditions under which the lubricant is required to operate for any particular extrusion. Up to 25% of one or more of magnetite, ferrous silicate, boric anhydrides, calcium oxide and fluoride, and sodium borate, silicate and carbonate may be included.
Patent GB-1424908-A (GB)
Title: Cap for inlet of fluid into a fluidized bed
IPC: C07C51/25
Filed: 1973-09-10
Abstract: 1424908 Fluidisation grid CESKOSLOVENSKA AKADEMIE VED 10 Sept 1973 [11 Sept 1972] 42456/73 Heading B1F [Also in Divisions F2 and F4] A valve suitable for the air inlet to a fluidized bed comprises an element 2 spaced by supports 6, 7 between an inlet 4 and a cap-shaped cover 1 and a closure member 5 located within the element above the inlet. The element may be cylindrical or frustoconical and may be provided with slots 8 which extend between the upper and lower limiting positions of the member 5. The member 5 may be completely spherical or partly spherical, cylindrical and frusto-conical as shown in Figure 2. An example is given of the valve used in a reactor for the oxidation of butenes to maleic anhydride in a bed of catalysts.
Patent GB-1112668-A (GB)
Title: Roller for conveyor belts or the like
IPC: B65G15/60
Filed: 1965-10-08
Abstract: 1,112,668. Rollers. GEWERKSCHAFT EISENHœTTE WESTFALIA. 8 Oct., 1965 [9 Nov., 1964], No. 42746/65. Heading F2U. A roller comprises an outer shell 1 of synthetic plastic force-fitted on an inner shell 2 of the same material which is rotatably mounted on a spindle 4 by means of bearings 5, 6 and located axially by a cotter pin 7 passing through the spindle and located within a spacer sleeve 15 between the bearings. In a modification (Fig. 2, not shown), the shells are formed with sleeves rotatably mounted on a journal by means of a bush and located axially between a step and a cotter pin. The inner shell is filled with oil.
Patent GB-1187167-A (GB)
Title: Preparation of Maleimides.
IPC: C07D207/44
Filed: 1968-09-09
Abstract: 1,187,167. N-substituted maleimides. FARBWERKE HOECHST A.G. 9 Sept., 1968 [9 Sept., 1967], No. 42805/68. Addition to 1,174,514. Heading C2C. A process for the production of N-substituted maleimides comprises heating a corresponding primary amine salt of maleic acid in an aqueous solution or in the solid state, with or without a dehydrating agent, in the presence of an inert diluting gas (which in the examples is super-heated steam), to a temperature between 100 and 400 C., and separating the corresponding N-substituted maleimide from the hot reaction mixture in a highly pure state by the injection of water. In the examples N-cyclohexyl, N-tertiary butyl, N-ethyl, N-phenyl, and N-(9,10-dihydro- 9,10 - ethano - anthryl - (11) - methyl) maleimides are prepared by the above process.
Patent GB-1078725-A (GB)
Title: Method for producing indene-coumarone-resins
IPC: C08F240/00
Filed: 1964-10-21
Abstract: Light coloured and homogeneous indenecoumarone are obtained from coal tar or petro-chemical raw materials, which contain styrene, coumarone, indene and their methyl homologues, with the aid of a liquid catalyst.  The polymerization is carried out at a constant monomer concentration and at a constant temperature, the temperature being adjusted within a range of \sB1 DEG  C. by the flow rate of the two-phase mixture through a cooled mixer in such manner that the reaction time does not exceed 30 minutes.  The catalyst is removed from the product and the product is neutralized first with solid adsorbents and secondly with a solution of dilute alkali metal hydroxide or alkali metal carbonate, the resin is then separated by means of a counter-current steam distillation.  Catalysts specified are sulphuric acid and a liquid complex of aluminium chloride with aromatic hydrocarbons.
Patent GB-1425253-A (GB)
Title: Conveying device for an injured contamimated person
IPC: G21F7/00
Filed: 1973-09-14
Abstract: 1425253 Treatment chamber for stretcher patient INFRANOR SA 14 Sept 1973 [29 Sept 1972] 43205/73 Headings A5R and A5X A conveying device for an injured contaminated person comprises: a portable, synthetic resin, one-piece, trough-like elongate 'base 1 having a peripheral wall upstanding from a bottom, the wall defining long and short sides, and the base arranged to accommodate a person on a stretcher; and a rigid, transparent synthetic resin one-piece lid 2 provided with openings 23 sealable by removable caps (24) and which can receive devices, such as glove-like sleeves, bag-like traps permitting articles to be introduced into the device, and/or air filters, wherein a sealing strip 25, secured along the outer surface of the lid along the entire edge thereof, bears against the inner surface of the peripheral wall of the base, a step 26 limiting the insertion depth of the lid into the base to the sealing strip's width. A reinforcing rail 27 is fitted inside the lid at the level of the sealing strip 25. The lid and base are secured by pressing together fibre hooks on strips 29a and 29b. The base has an outwardly curved edge 4 reinforced with tubes 5 joined by further tubes 6, longitudinal and transverse ribs 18, (19), outwardly projecting ribs 17 forming continuations of ribs (19), a closable outlet opening 200 on the underside of the base and provision at 15 for cables and tubes to pass through the base into the container. The lid is provided with ribs 20, 21 and air outlet filters 22.
Patent GB-905642-A (GB)
Title: Improvements in electric circuit breakers
Inventor: COLEMAN EDWARD
IPC: H01H71/74
Filed: 1959-06-16
Abstract: 905,642. Automatic circuit-breakers. CRABTREE & CO. Ltd., J. A. May 25, 1960 [June 16, 1959], No. 43428/61. Divided out of 905,639. Drawings to Specification. Class 38 (5). In a moulded case circuit-breaker having overload-responsive electromagnetically-tripped mechanism, the pressure of a compression spring acting on an armature is adjustable by a screw in a tapped opening, access to which may be obstructed by a rivet interconnecting the casing parts of the circuit-breaker. The circuitbreaker is that described in Specification 905,639. Specifications 905,640 and 905,641 also are referred to.
Patent GB-1087680-A (GB)
Title: Variable-ratio power transmission mechanisms
IPC: F16H63/30
Filed: 1966-09-29
Abstract: 1,087,680. Change-speed gear; friction clutch. GENERAL MOTORS CORPORATION. Sept. 29, 1966, [Oct. 24, 1965], No. 43501/ 66. Addition to 1,078,730. HeadingsF2CandF2D. In a change-speed planet gear wherein a ring gear 27 of a planet train 23 is held by a brake 45 or clutched at 49 to an intermediate shaft 11, the brake 45 and clutch 49 are engaged by servopistons 35, 37 the latter of which is slidable within the former. The brake 45 is engaged by supplying pressure liquid to a chamber 40 to move the piston 35 right against a return spring 63. To engage the clutch 49 and disengage the brake 45 pressure liquid is supplied to a chamber 39 whilst pressure is maintained in the chamber 40. Since the pressure liquid in chambers 39, 40 acts on equal areas of the piston 35 the spring 63 disengages the brake 45 whilst the pressure in the chamber 39 engages the clutch 49 against the bias of a return spring 67. Engagement of the clutch 49 commences before the brake 45 is completely disengaged. Gear arrangement.-A hydrodynamic torque converter 5, 9, 15 transmits the input torque to sun gears 21, 89 of a sun-ring train 23 and an intermeshed planet train 87. The intermeshed planets 91, 93 are carried by an output shaft 105 and mesh a ring gear 95 which is held by a brake 97 for reverse ratio and a reaction sun 85 fast with the planet carrier 81 of the sunring train 23. Low ratio is provided by engaging a brake 103 to hold the sun-gear 85. For intermediate ratio both trains are compounded by engaging the brake 45 to hold the ring-gear 27 and direct drive is provided by engaging the clutch 49 to connect the ring 27 and sun-gear 23. The gear may be controlled automatically.
Patent GB-1478154-A (GB)
Title: Gearing
IPC: G04B19/02
Filed: 1974-10-10
Abstract: 1478154 Timepiece motionwork V D O ADOLF SCHINDLING AG 10 Oct 1974 [17 Oct 1973] 43942/74 Heading G3T [Also in Division F2]  In a reduction gear mechanism, which may be used in a clock for driving hour, minute and second hands, a rigid first wheel 1 carrying facial teeth is held stationary in a housing 18, a second wheel 24 having a different number of facial teeth 29, in the form of radial elastic fingers, is coaxially mounted on a rotatable bush 21, and a coupling device 23 mounted by a radial arm 7 on an intermediate driving bush 4' causes the facial teeth of wheels 1 and 24 to become engaged together in one peripheral region alone, by deflection of the teeth 29, and thereby causes wheel 24 to roll upon the teeth of wheel 1 and to be driven in rotation, thereby driving the hour-hand 22. The wheel 24 may be composed of a thin flexible disc 27 rendered more resilient by part-annular slots 30, Fig. 3, and its facial teeth, in the form of radial flexible fingers, are each composed of a flexible portion 28 and a pin-shaped portion 29, which may be of circular cross-section, Fig. 3, part-circular, or wedge-shaped section 29', Fig. 6. The coupling device 23 may be provided with cam surfaces 25, 26, or alternatively may carry rubber-covered rollers (9, 10), Fig. 1 (not shown). Wheels 1', 2', and a coupling device 15 carried by arm 7' form a second stage of gearing in Fig. 2, thereby driving a minute-hand 20 and a second-hand 19. Each toothed wheel may consist of an integral plastics moulding.
Patent GB-1456110-A (GB)
Title: Method for preparing waterless lithographic masters
IPC: G03G13/28
Filed: 1974-10-10
Abstract: 1456110 Lithographic printing plates XEROX CORP 10 Oct 1974 [19 Oct 1973] 44008/74 Heading B6C A lithographic printing plate is prepared using a silicone gum by applying a layer of a catalyst for curing the gum to a support, providing a particulate image thereover, fusing this image, applying the gum, and allowing the gum to cure. Curing is prevented by the fused image. Alternatively, the gum layer can be applied first, followed by the particulate image, and then the catalyst layer. The image is preferably produced electrophotographically. The uncured gum, together with catalyst and image is preferably removed, e.g. by a solvent. The plate requires no damping.
Patent GB-1530350-A (GB)
Title: Electrical test jigs
IPC: G01R1/073
Filed: 1976-10-23
Abstract: 1530350 Electrical test jigs MARCONI INSTRUMENTS Ltd 15 Sept 1977 [23 Oct 1976] 44100/76 Heading H2E An electrical test jig comprises a carriage 1 for supporting a circuit board 10 to be tested, a bed 2 carrying an array of contacts 8, and means, e.g. guide pins, for aligning the carriage 1 and bed 2 and providing for movement towards and away from each other whereby the contacts 8 are connected to desired parts of the circuit board 10. Sealing means 11 is provided for sealing between the circuit board and the carriage, further sealing means, e.g. flexible bellows 12, sealing between the carriage 1 and the bed 2. In use, evacuation of enclosure 13 causes bed 2 to approach carriage 1 to effect the electrical connection between the contacts 8 and the circuit board 10.
Patent GB-962822-A (GB)
Title: Improvements in or relating to a vehicle and suspension system thereof
IPC: B61F5/24
Filed: 1960-12-22
Abstract: 962,822. Rail and road vehicle undercarriages. E. F. KREISSIG. Dec. 22, 1960, No. 44124/60. Headings B7D and B7L. A rail or road vehicle body 1 having a cross-member 1a is pivotally connected at K 1  and K 2  to the links 4 of two linkages Ao 1 , Bo 1 , 3, 3a, 4 and Ao 2 , Bo 2 , 3, 3a, 4, the links Ao 1 , Bo 1  and Ao 2 , Bo 2  being fixed relative to the bogie or chassis frame 2 which carries wheels (not shown). When the vehicle negotiates a curve the points K 1 , K 2  move in curved paths k the centres of curvature of which coincide on the central longitudinal vertical plane of symmetry s of the frame 2.
Patent GB-1438848-A (GB)
Title: Electric motor
IPC: A61C1/18
Filed: 1973-09-20
Abstract: 1438848 Dynamoelectric machines SIEMENS AG 20 Sept 1973 [22 Nov 1972] 44304/73 Heading H2A In an electric motor wherein the rotor is supported at least partially by a cushion of air, the stator is of permanent magnet form and comprises a plurality of rings of magnetic and hard material, and one or more intermediate rings of softer material, and the intermediate rings include radial ducts for introducing compressed air into the air gap for supporting the rotor. In the dental hand piece motor shown, air is forced via ducts 26, 27 into an annular space between the stator 7 and housing 6, and from there it flows through nozzles 10 in two soft rings 9 intermediate to three magnetic and hard rings 8 into the air gap between the rotor 12 and stator 7 whereby to support the rotor. Some of the air also passes through radial apertures 29, 32 in ring members 17, 24 at opposite ends of the motor to provide axial thrust air bearings for locating the rotor in the axial sense, and some passes over a disc shaped commutator 23 to sweep away dislodged particles from the brushes 22. Ring 24 may be screwed in to adjust the axial air gap. Air leaves the motor either via a gap around the output shaft 13, or via two sets of apertures 38, 39, some of the air passing back along the stator through a duct 36 in its exterior. The rotor may be coated with low friction material, e.g. of plastics resin containing graphite.
Patent GB-954227-A (GB)
Title: Improvements in or relating to voltage comparison circuits
Inventor: GARLAND BERNARD
IPC: G06G7/184
Filed: 1960-12-29
Abstract: 954,227. Transistor circuits. GENERAL ELECTRIC CO. Ltd. Dec. 21, 1961 [Dec. 29, 1960], No. 44603/60. Heading H3T. [Also in Divisions G1 and H2] In a voltage comparison circuit the amplitude of an alternating voltage is compared with the value of a direct voltage, the output being rectified and an indication or control provided if the rectified output lies outside predetermined upper and lower limits. The Specification describes a system for maintaining constant, the output voltage of an oscillator used for generating a pilot signal in a communication system of the kind in which the pilot signal gives an indication of the transmission characteristics between the transmitting and receiving terminals. The oscillator output is fed to a tuned circuit 3, 6, coupled to the base of transistor 8. The alternating voltage amplitude is compared with a direct voltage derived from a Zener diode 16 and adjustable at 13. Transistors 8, 9 provide an alternating output dependent on the difference between the two voltages. This voltage is amplified at 18, 21, negative feed-back being provided via resistor 24, and rectified by transistor 26. The rectified voltage is passed by emitter follower 27 to a further voltage comparator using transistors 29, 30. The output of transistors 29, 30 is coupled via a diode 40 to a further voltage comparator using transistors 54, 55. Transistor 30 is normally biased by a Zener diode 36 so as to be non-conductive. Transistor 55 is biased by Zener diodes 59, 60 so as to be normally conductive, energizing relay 58. If a change in input voltage results in an appreciable fall in the rectified voltage from transistor 27, transistor 29 becomes non-conductive so that its rise in collector voltage is passed to transistor 54 with the result that the conductive states of transistors 54, 55 are reversed and relay 58 is released. This may provide an indication or may correct the change in amplitude. A fourth voltage comparator using transistors 44, 45 is provided for use when the rectified voltage changes in the other direction. The system is sensitive to one per cent changes in input voltage.
Patent GB-1534460-A (GB)
Title: Diaphragm valve
IPC: F02M69/52
Filed: 1977-10-27
Abstract: 1534460 Pressure regulators ROBERT BOSCH GmbH 27 Oct 1977 [28 Oct 1976] 44676/77 Heading G3P [Also in Division F2]  A valve comprises two chambers 7, 8 separated by a flexible diaphragm 5 formed with a pocket 56 in which is loosely located a plate 55 which co-operates with a valve seat 9 and is centred with respect to the seat by a spring 11 coaxial with the seat. The spring locates either in an annular groove 57 or on a shoulder (not shown) on the plate. In the closed position the plate 55 abuts a sharp ring 60 formed on the valve housing and concentric with the seat 9. The valve is used in a fuel injection system, and the diaphragm 5 is formed with a plurality of pockets for closure plates for the respective valves. A spool valve 21 positioned in accordance with engine parameters controls the flow of fuel from the inter-connected chambers 8 of the valves to the respective chambers 7, and the diaphragm responds to the pressure difference between these chambers to regulate the flow from the chambers 7 to the respective injection valves 31.
Patent GB-994735-A (GB)
Title: Continuous vapour-phase polymerization of tetrafluoroethylene
IPC: C08F14/26
Filed: 1963-11-12
Abstract: A process for the continuous vapour phase polymerization of tetrafluoroethylene comprises subjecting tetrafluoroethylene monomer to an irradiation dosage not exceeding 1.0 x 104 roentgen in a polymerization zone, separating the resulting polymer from unreacted monomer in a cyclone, adding fresh monomer to the unreacted monomer and returning the monomer mixture to the reaction zone.  The cyclone may constitute the reaction zone and the monomer may be fed thereto in the liquid or super-cooled state.  The unreacted monomer or mixture thereof with fresh monomer may be cooled before return to the reaction zone. Examples describe the polymerization of tetrafluoroethylene by the process of the invention, and apparatus suitable for carrying out the process is described and illustrated.
Patent GB-1224697-A (GB)
Title: Electric driving arrangement using a stepping motor
IPC: H02P8/24
Filed: 1969-09-11
Abstract: 1,224,697. Control of stepping motors. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 11 Sept., 1969 [14 Sept., 1968], No. 44945/69. Heading H2J. When a controller ,l0 receives a forward or reverse starting signal, it generates a pulse E which is transmitted to ring counter 3 through gate 4, and sets a bi-stable switch 6 to open a gate 5. Simultaneously, the controller 10 transmits a signal U to the ring counter 3 which commences counting in the desired direction. A stepping motor 1 is accelerated to its next position in which a photo-electric pulse generator 12-14 develops pulse G which is applied to the ring counter through gates 5 and 4. The ring counter further advanced so that the motor moves to its succeeding position. The pulses G are applied to controller 10 to be counted and compared with the number of steps the motor is to travel. A number of steps before the motor reaches the desired stopping position, the controller 10 develops a deceleration pulse F which changes over the switch 6. The next pulse G does not pass through the gate 5 but is applied to a delay circuit 7 which produces a signal T, the delay time of this circuit being greater than the interval between two successive pulses G at this stage. Pulse gate 8 now passes the pulses G through OR- gate 9 and the gate 4 to the ring counter 3 whereby the motor is decelerated since it tends to be retained in its preceding position. When the time between two successive pulses G exceeds the delay time of the circuit 7, the gate 8 is closed and the motor assumes a speed which depends upon the delay time, but it cannot step backward. The controller 10 the develops a signal W to close the gate 4 and stop the ring counter 3, the motor being stopped within a single step.
Patent GB-1472433-A (GB)
Title: High pressure pumping assemblies
IPC: F04B49/02
Filed: 1975-10-20
Abstract: 1472433 Controlling pumps SPEED-O-KLENE EQUIPMENT CO Ltd 20 Oct 1975 [18 Oct 1974] 45212/74 Heading F1A [Also in Division F2] Two or more pumps 1 supply liquid, e.g. water, to a conduit 2 having a plurality of outlets 4 for spraywands 5a-c, the capacity of each spraywand corresponding to the capacity of a respective pump, a non-return valve 6, an unloader valve 7 and a  pressure switch 8 being connected in the conduit, and the unloader valve and switch being set such that when only one spraywand is opened switch 8 closes to start all of the pumps, the excess pump delivery being by-passed by the unloader valve, and when all of the spraywands are closed switch 8 opens to stop all of the pumps. With three pumps, as shown, unloader valve 7 is set to by-pass the delivery of two of the pumps at normal operating pressure, but is capable of by-passing the delivery of all three pumps at a higher pressure if switch 8 fails. Valve 7, Fig. 2 (not shown), comprises a spring-loaded valve member (11) the loading of which is adjustable to set the opening pressure, and the degree of opening of which is adjustable to set the quantity by-passed.
Patent GB-1214767-A (GB)
Title: A vacuum deposition apparatus
Inventor: YASUDA NOBUAKI
IPC: C23C14/22
Filed: 1969-09-12
Abstract: 1,214,767. Vapour deposition apparatus. TOKYO SHIBAURA ELECTRIC CO. Ltd. Sept.12, 1969 [Sept.13, 1968], No.45223/69. Heading C7F. Substrates 19 of e.g. glass are coated with e.g. Ni-Fe alloy, Cu or Al from a source 14 wound around or in a modification Fig.2c (not shown) plated on a vertical resistance heater 15, whilst applying a magnetic field by a coil 24. A heater 20 heats the substrates and a shutter 23 protects the substrates at the start of the process. A wire of e.g. Mo, W or Ta may be wrapped around the source material Figs.2D to 2G (not shown) to prevent it from running down the heater 15. Several layers may be deposited by using several sources which may be moved into position, when required. More material may be placed at some parts of the heater than others.
Patent GB-1192205-A (GB)
Title: Methacrylonitrile Copolymers.
Inventor: WILSHER RUDOLPH STANLEY
IPC: C08L27/06
Filed: 1967-05-31
Abstract: 1,192,205. Methacrylonitrile copolymers. PRINCETON CHEMICAL RESEARCH Inc. 31 May, 1967, No. 45309/68. Divided out of 1,192,204. Heading C3P. Novel random copolymers comprise from 25-45 parts by weight of units of methacrylonitrile, from 13-45 parts by weight of units of styrene, a substituted styrene or vinylnaphthalene, 5-25 parts by weight of units of butadiene and, optionally, a minor amount of units of another comonomer (unspecified). The substituted styrene may be α-methyl styrene or vinyltoluene. The copolymers are useful for moulding into articles, e.g. sheets, film tubing, rods and heat-sealable films, and for forming protective coatings, and can be cured if desired. In examples, the copolymers are prepared by emulsion polymerization (using sodium lauryl sulphate as emulsifier) in the presence of potassium persulphate and dodecyl mercaptan, and polymerization is terminated by addition of hydroquinone dimethyl ether; N-phenyl-#- naphthylamine is added as an antioxidant. Solutions of the polymers are formed in methyl ethyl ketone.