baber/WOPTO huggingface dataset:
Patent GB-1255660-A (GB)
Title: Method for the production of polyurethane foams
IPC: C08G18/66
Filed: 1968-12-05
Abstract: 1,255,660. Polyurethane foams. INTERPOLYMER RESEARCH CORP. 5 Dec., 1968 [19 Dec., 1967], No. 57887/68. Headings C3C and C3R. Polyurethane foams having dense surface skins thereon are prepared by mixing a formulation comprising (a) a poly(oxyalkylene)polyol containing secondary or a mixture of secondary and primary hydroxyl groups, or mixtures thereof, in an amount of 45 to 70 weight per cent of the total formulation, (b) a hydroxyl compound containing primary hydroxyl groups or a compound containing primary or secondary amine groups in an amount of 5 to 15 weight per cent of the total formulation, (c) an isocyanate, (d) a foam forming catalyst and (e) a foaming agent to form a homogeneous mixture which is then foamed in a mould. Preferred compounds (a) are propylene oxide-polyol adducts which may be capped with ethylene oxide. The compound (b) may be an aliphatic diol, alkylene glycol, reaction products of lactones with alkylene glycols and hydroxyl polyesters. Suitably the isocyanate (c) is a mixture of diphenylmethane diisocyanate isomers and a liquid carbodiimide derived from diphenylmethane diisocyanate isomers. The catalyst (d) may be a tertiary amine and/or a lead or tin compound. In a typical example a mixture is formed of an ethylene oxide capped propylene oxide adduct, diethylene glycol, N,N,N<SP>1</SP>,N<SP>1</SP> - tetramethyl - 1,3 - butane diamine, dibutyl tin dilaurate, water and a polyisocyanate based on diphenylmethane diisocyanate and the mixture is poured into a mould maintained at 55‹ C. to form a form having a dense integral skin. Uses.-In the manufacture of crash pads, arm rests and head rests and in the furniture industry.
Patent GB-1362048-A (GB)
Title: Automatic regulation system for a distillation unit
IPC: B01D3/42
Filed: 1971-12-14
Abstract: 1362048 Fractional distillation; automatic control for collection of fractions INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 14 Dec 1971 [16 Dec 1970] 58094/71 Heading. B1B Separation of a liquid mixture into successive fractions of required boiling range is carried out in a distillation apparatus comprising a vessel 1 provided with a heater 5 for boiling the liquid mixture, a column 6 for contacting the rising vapour with downflowing condensate, and a condenser 8 from which distillate flows back to the column and/or to an intermediate tank 11 assocated with liquidlevel controller 13 and with valves 14, 15, 19 which are automatically controlled by an electric circuit including a digital computer to discharge the distillate from tank 11 to one of a succession of recovery tanks 12, 12a, 12b. which may be moved into the required position by a conveyor actuated by step-by-step motor M. Condenser 8 and tank 11 are connected to vacuum pump 16 via valves 18, 52 and 19. Return of distillate to column 6 is controlled by valve 9 which is open when the difference between the vapour-temperature measured by sensor 7 and the preset maximum temperature of the fraction being distilled does not equal zero. When a fraction has been completely distilled off, valve 14 closes, atmospheric pressure is restored to tank 11 by means of valve 19, valve 15 opens whereby distillate is transferred from tank 11 to tank 12, and the next recovery tank 12a is moved into position. The valves then operate to place the system once more under reduced pressure and in operation for the recovery of the next fraction. When the temperature in vessel 1, measured by sensor 4, becomes so high that thermal deterioration of the boiling mixture might occur, the pressure within the system is automatically lowered. The power output of heater 5 is controlled according to the difference in pressure between vessel 1 and the top of condenser 8, measured by sensor 10. The electric circuit automatically stops the distillation when the temperature in vessel 1 exceeds a certain limit considered as too high for the mixture being distilled. The electric control circuit, which comprises a power source for heater 5, converts the data from the various sensors into signals; and the circuit also comprises comparators, pulse generators, logic gates and memory devices.
Patent GB-1422669-A (GB)
Title: Apparatus for transferring fluid
IPC: B67D7/04
Filed: 1973-12-19
Abstract: 1422669 Dispensing liquids FMC CORPORATION 19 Dec 1973 [4 June 1973] 58941/73 Heading B8T [Also in Division A4] A fluid transfer apparatus, e.g. for petrol, comprises a fluid delivery conduit 22, (40), Fig. 2 (not shown), a vapour return conduit (42), 24 fluid dispensing means 84, and a fluid outlet/vapour inlet assembly 20 having fluid outlet and vapour inlet portions 98, 100, and valve means 124 for closing the outlet portion 98 to prevent dripping. Preferably, the conduits 22, 24, (40), (42) form part of a pivotable boom assembly 12 enabling the assembly 20 to be positioned at any point in a working range. On inserting the assembly 20 into a tank filling hatch H, a rubber or like member 136 sealingly engages the rim R of the hatch H, and a seating portion 140 is caused to rise on a spout body 102 until it engages a flange 104, the valve means 124 simultaneously leaving a seat 142. Fluid may then be dispensed until the tank T is substantially full, fluid entering a vapour inlet 150 in the assembly 20 raising a float 154 to operate a contact valve 88 for shutting off the dispensing means 84. A vapour check valve 114 comprises a closure member 116 biased by a spring 120, the vapour pressure acting to raise the member 116 to allow vapour flow through ports 122 to the inlet portion 100. On raising the assembly 20, the seating portion slides downwardly, its lower edge 142 engaging an O-ring 130 around the valve member 124 to close off the portions 98, 100. Alternatively, Fig. 5, a valve member 218 may be spring-biased to close the outlet/inlet assembly, the seating portion 232 being connected to the valve stem 222 by a pin 226 sliding in slots 228. Further, Figs. 7 and 8 (not shown), a pneumatically powered poppet valve may be employed, and the check valve (404), Figs. 9 and 10 (not shown), may also be power operated by the pneumatic means (400).
Patent GB-1433799-A (GB)
Title: Bicycle with pivotable real wheel
IPC: B62K21/00
Filed: 1973-12-21
Abstract: 1433799 Bicycles R A BELDIN P P BRASSEUR and E V H BRASSEUR 21 Dec 1973 59657/73 Heading B7E In a bicycle comprising a main frame 10, a front wheel 28 rotatably mounted in a fork 27 journalled to the forward end of the frame 10 to be steerable by handlebars 31, and a saddle 21 mounted on the frame 10, the rear wheel 42 is rotatably mounted in a fork 34 which is journalled to the rear end of the frame 10 and which carries a forwardly-extending sub-frame 13 supporting a pedal mechanism 46 drivingly connected to the wheel 42 such that, in use, the wheel 42 may be driven, and steered independently of the front wheel, by the action of the rider on the pedals of the mechanism 46. A spring 52 connecting the frame 10 to the rear fork 34 may be provided to bias the rear wheel 42 towards a position in which it is parallel to the frame 10. Alternatively, Fig. 4 (not shown), means may be provided to releasably lock the rear wheel 42 in a position parallel to the frame 10, these means comprising a pin slidably mounted in a bracket on the frame 10 and engageable with a hole in the rear fork 34. The frame 10 may, as shown, comprise upper 14 and lower 15 beams interconnecting tubes 16, 17 in which the front 27 and rear 34 forks respectively are journalled through the intermediary of thrust bearings. The saddle 21 may be connected at its rear to a pair of supports 24 mounted on opposite sides of the tube 17 and at its front to a bracket 22 slidable along the beam 14 to raise or lower the saddle. The sub-frame 13 may comprise a horizontal beam 45 connected to the fork 34, and a bracket 44 connected both to the beam 45 and the fork 34, the bracket 44 also supporting a guard 50 for a chain 48 connecting the pedal mechanism 46 to a cog 49 on the rear wheel. A coaster brake may be provided on the rear wheel.
Patent GB-1213550-A (GB)
Title: Improvements in or relating to vehicle seats
Inventor: AUER ADOLF
IPC: B60N2/52
Filed: 1968-12-20
Abstract: 1,213,550. Pneumatic springs. BREMSHEY & CO. 20 Dec., 1968, No. 60841/68. Heading F2S. [Also in Division A4] The frequency of vibration of a pneumatically sprung vehicle seat is adjusted by altering the position of a roller 17 on which a lever 11 is supported. When the roller 17, which is slidably adjusted by means of a screw spindle 16, is in a position indicated at 21 the ram 10 of the spring 9 remains stationary as the seat moves. On movement of the roller from the position 21 in the direction of arrow A, the ram moves in the same direction as the seat and the frequency of vibration of the spring thereby decreases. On movement of the roller in the direction of arrow B the ram moves in the opposite direction to the seat and frequency of vibration of the spring increases. In Fig. 2 (not shown) the spring is connected to a valve (22) which automatically adjusts the quantity of air in the spring as the seat moves thereby making it self-levelling. The level setting is itself adjustable.
Patent GB-631445-A (GB)
Abstract: 631,445. Calculating-apparatus. NATIONAL CASH REGISTER CO. June 3, 1946, No. 11119/48. Convention date, March 3, 1944. Divided out of 631,379. Drawings to Specification. [Class 106 (i)] A calculating-machine has a travelling papercarriage provided with line-spacing mechanism, a power-drive means which can be coupled to drive either the line-spacing mechanism or a carriage-tabulating mechanism, and a machine-starting bar having two different modes of operation, one mode connecting the power means to drive the line-spacing mechanism and the other mode connecting it to drive the tabulating mechanism, the machine being started in both cases. As described, the two modes are (1) depression to normal position and release; (2) depression to a position below normal and manual retention in this lower position. The line-spacing normally occurring under mode (1) may be inhibited by a particular setting of a manually-moved slide. The embodiment described is the same as that disclosed in Specification 631,379.
Patent GB-643586-A (GB)
Abstract: 643,586. Counting-apparatus. TOTALISATORS, Ltd. (Automatic Totalisators, Ltd.). Oct. 16, 1947, No. 27725. [Class 106 (i)] Transaction count registering mechanism for a race totalizator adding unit comprises a main counter gear-wheel, drive devices for rotating said counter-wheel in correspondence with a count to be registered, two counters each having an operating shaft, a drive pinion on each of said shafts, two hingedly supporting brackets whereon said counters are respectively mounted and means whereby one of said pinions may be moved towards said counter-wheel while the other is moved away. The rotation of a gear-wheel 7, Fig. 1, is controlled in known manner through differentials 6, gear-wheels 3, escapement levers 4 and impulse-receiving electromagnets 5 in accordance with the number and value of bets being made on a particular race. The gear-wheel 7 is rotated by a gear-wheel 62 which co-operates with a main counter gear-wheel 8, Fig. 2, which drives one or other of two counters 18, 19 which have operating shafts 20 and which are fixed on brackets 23. Keyed on the shafts 20 are pinions 25, 26 respectively which mesh with respective idler pinions 27, 28 mounted on arms 29 fixed to the brackets 23. The brackets 23 are urged towards the wheel 8 by a spring 30, but are controlled by levers 31, 32 which cooperate with cams 33, 34, respectively, fixed on the cam-shaft 14. The arrangement is such that only one of the pinions 27, 28 is meshing with the gear-wheel 8 at any instant so that only one of the counters 18, 19 is being operated. Shutter plates 35, 36 hinged at 37 in levers 38, 39 fulcrumed on pins 40 are constantly urged away from counter windows 21, but a pin 43, 44 on the bracket 23 of the counter being driven engages the corresponding lever 38, 39 to move the corresponding shutter 35, 36 over its window 21. Upon rotation of the shaft 14 through 180 degrees the levers 31, 32 are moved by the cams 33, 34 so that the wheel 8 is engaged by the other of the pinions 27, 28 and the other counter is then driven. Spring pawls 47, 48 carried by the brackets 23 engage the associated pinion 25, 26 when that pinion is not being driven. The gear-wheel 8 is driven from a continuously rotating shaft 9 through a slipping clutch comprising a plate 51 spring urged towards a plate 54 carrying the gearwheel 8 which is fixed on a flange 58 on a bearing sleeve 59. The flange 58 has a pin 60 which normally bears against a pin 61 on the gear-wheel 62 fixed on a sleeve 63 having a grub-screw 64 which engages a guide slot 65 in the sleeve 59. A spring 68 urges the wheel 62 ahead of the wheel 8 so that upon release of the wheel 7 the wheel 62 is rotated by the spring 68 and the wheel 8 is then driven through the slipping clutch to catch up. If the slipping clutch should fail, the gear 62 will be moved axially by the interaction of the grub-screw 64 and guide slot 65 until a slip ring 70 carried thereby effects closure of a cut-out switch, whereupon further operation of the ticketissuing machines associated with the unit is prevented.
Patent GB-776850-A (GB)
Abstract: 776,850. Turning-gear. BENDIX AVIATION CORPORATION. June 28, 1955 [June 28, 1954], No. 18685/55. Class 7 (5). In an engine starter drive comprising a screw shaft 11 slidably journalled on a power shaft 1 and controlling the movement of a pinion 17 slidably and rotatably mounted on the shaft 1 and connected by a barrel 21 to a control nut 19 on the screwshaft, a coupling comprising a driving member 6 is non-rotatably mounted on the shaft 1 and has teeth 13 cooperating with teeth 12 on one end of the screwshaft 11, the coupling serving both as an overload and an overrunning clutch ; the drive may also include a stop 7 for both members of the coupling. A sleeve 2 that is fixed on the shaft 1 has a splined part 5 upon which is slidable the clutch member 6 that is urged against the stop ring 7 by spring washers 8. Initial engagement of the teeth 12, 13 is maintained by a spring washer 14 disposed between the screwshaft 11 and an abutment 15 on the sleeve whilst the pinion 17 is connected to one end of the barrel 21 that has slots in which are located the lugs 23 of the nut 19, the latter housing a spring-loaded detent 28 that co-operates with a recess 31 in the screwshaft 11 ; the recess 31 has a shoulder 32 which restricts demeshing of the pinion until the detent is centrifugally withdrawn. In the idle position of the drive the detent 28 engages a shoulder 33 to prevent drifting of the pinion and associated parts. A mesh-enforcing spring 26 is interposed between the nut 19 and a shoulder 27 in the barrel. Specification 705,990 is referred to.
Patent GB-2005388-A (GB)
Title: A method of and an apparatus for effecting heat exchange between a cooling gas and granular material
IPC: F28C3/14
Filed: 1978-06-26
Abstract: In effecting heat exchange between a cooling gas and granular material of varying grain size, such as cement clinker, the granular material is continuously fed to the intake 1 of apparatus and then sub-divided into a plurality of flow paths and in each flow path is cooled in counterflow with the cooling gas. <IMAGE>
Patent GB-2002073-A (GB)
Title: Safety brake equipment for a mining machine
IPC: B61H7/12
Filed: 1978-08-01
Abstract: Brake equipment (1) for a mining machine working in an inclined seam has a shoe (6) locating over a fixed guide rail (10), the shoe having an open slot (16) which leads to a recess (8) receiving the rail (10). A brake member (18) is pivotally mounted in the slot (16) and has a cam face (22) engageable with the rail (10). Upon movement of the machine in the forbidden direction, the brake member (18) pivots to bring the cam face (22) into frictional engagement with the rail (10) and the shoe (6) moves to contact the rail (10) to brake the machine. <IMAGE>
Patent GB-2002169-A (GB)
Title: Apparatus for sample analysis
IPC: H01J49/14
Filed: 1978-08-01
Abstract: An apparatus for analysing samples by bombarding a sample with electromagnetic radiation, preferably a pulsed laser beam, followed by analysis of the ions produced by the sample in a time of flight mass spectrometer 11. A microscope 5 serves both for collimating the laser beam and for observing the sample 6. An ion optics system 8, 9, 10 is mounted adjacent to a sample illuminating system 18 to 24 and the two systems can be moved together perpendicular to the axis of the ion optics system for selectively aligning the one system or the other with the axis 17 of the microscope 5 and the mass spectrometer 11. <IMAGE>
Patent GB-2004413-A (GB)
Title: Isotopic CF4 laser
IPC: H01S3/22
Filed: 1978-09-18
Abstract: An isotopic optically pumped CF4 laser is capable of producing coherent radiation at approximately 628 cm<-1>. As shown in Fig. 4, an off-axis pumping signal 42 is applied to an optical pumping cavity having an inner reflective surface 46 for containing the pumping signal within the cavity. A partially reflective mirror 50 and a grating 48 mounted in Littrow form the optical cavity for enhancing oscillations at approximately 628 cm<-1>. In another embodiment, Fig. 1, a Brewster prism 10 is utilized to spatially separate coherent radiation 14 generated by the isotopic CF4 gas and the pumping signal 12 to facilitate injection of the pumping signal into the optical cavity. A variation of this embodiment utilizes a grating mounted in Littrow for waveline tuning. <IMAGE>
Patent GB-2005842-A (GB)
Title: Pressure monitoring device
IPC: G01D3/00
Filed: 1978-10-04
Abstract: The monitoring device incorporates detecting means (1,3 to 6) for emitting an electrical signal proportional to the variable quantity to be monitored. Differentiating means (10) are provided to determine the time derivative of this signal and adding means (7) are provided for adding this signal to a further electrical signal proportional to the time derivative. Such a device may be used to compensate for a time delay, for example an exponential time delay, in a measuring chain, such as for example the delays occurring in the case of pressure transmission in long capillary tubes having diaphragms. An alteration in the monitored quantity is thus very quickly indicated. The device appears to be particularly suitable for measuring pressure in hot liquid metal installations. <IMAGE>
Patent GB-2016387-A (GB)
Title: Wheels for rail vehicles
IPC: B60B17/00
Filed: 1978-10-11
Abstract: A rail vehicle wheel has a rim or tyre (2) mounted around the periphery of a disc (1). The mounting is such that in use the part of the tyre in the region of the contact point (A) between the tyre (2) and the rail track (9) can pivot relative to the disc (1) about an axis (D) extending in the direction of travel of the vehicle. In alternative embodiments, the axis (D) is offset relative to the said circumferential plane of the rim. Damping and wear preventing element (5) may be of metallic material and/or lubricant and may be firstly connected to the disc or rim. Instead of element 5, elastomeric material with a damping and/or lubricating layer (Fig. 3 not shown) or a resilient metal element (Fig. 4 not shown) may be positioned between the disc and rim. <IMAGE>
Patent GB-2016803-A (GB)
Title: Thin film transistor construction and manufacturing method of the same
IPC: H01L29/786
Filed: 1979-01-23
Abstract: A thin film transistor comprises a substrate 13, a gate electrode 14, an insulating oxide film 15, a source and drain electrodes 16, 17 thereon spaced from each other, and a layer of a semiconductor material formed on the source and drain electrodes and the insulating oxide film to electrically connect the source and drain electrodes. The layer of the semiconductor material is provided as the last step in manufacture after formation of the gate, source, and drain electrodes. The insulating oxide film may be made by superficial anodic oxidation of the gate electrode. <IMAGE>
Patent GB-2019049-A (GB)
Title: Displayed data correction arrangement eg in an electronic timepiece
IPC: G04G5/00
Filed: 1979-03-12
Abstract: In an electronic timepiece the digital display of time functions is corrected by the manipulation of a multi-contact rotary switch. Rotation of the switch in one direction corrects one displayed function, e.g., hours and minutes, and rotation of the switch in the other direction corrects another displayed function, e.g., day and date. The rate of display correction is responsive to the rate of switch rotation. Rotational direction is electronically determined by detecting which contact in the rotary switch is the first to close. Rate of switch rotation is determined by measuring the time required in cyclic actuation of the rotary switch contacts.
Patent GB-2018968-A (GB)
Title: Diagnostic lamp
IPC: F21L4/00
Filed: 1979-04-06
Abstract: A portable diagnostic lamp is constructed as a pocket appliance for inspecting teeth by fluorescent excitation of a fluorescible material which has been applied to the teeth and gums. A lamp comprises a casing housing a small battery-powered incandescent bulb with a lens supplying a divergent beam of rays and a rectangular filter located before the latter, which filter comprises a blue color filter with a dichroic filter applied thereto. A folding and adjustable mirror is located above the bulb, in use of the lamp and the longer sides of the rectangular filter and a filament of the incandescent bulb are arranged parallel to the pivot axis of the mirror.
Patent GB-2018386-A (GB)
Title: Steering apparatus
IPC: B63H25/10
Filed: 1979-04-10
Abstract: A steering apparatus, more particularly for motor boats, comprises a device for converting rotational movement of a shaft 15 or a shaft 17 into linear movement of a driven member connected to a shaft 16. The shafts 15, 17 carry pinions 18, 19 which may be selectively engaged by a pinion 20 on shaft 16 on axial movement of the pinion 20 by means of an arm 23 controlled by a wire 24. <IMAGE>
Patent GB-2048221-A (GB)
Title: Box-blank Forming Machine
IPC: B65H29/04
Filed: 1979-04-30
Abstract: An improved feed arrangement for a box-blank forming machine brings a paper board blank for forming to the press (3) at the same time as it removes the previously-formed blank. The conveyor for doing this is in the form of spaced-apart bands (5) driven stepwise from the main drive of the machine by an intermittent drive formed by a control wheel (1) with eccentric arm (13) and drive stud (14) registering with a cross-wheel (2). Each part-rotation of the cross-wheel (2) by the stud (14) causes one-fourth travel of the conveyor bands (5), because four is the number of pairs of clips (4) which are provided on the bands for holding the board. These are automatically opened at a loading position and a release position by ramps (51 and 51' respectively). <IMAGE>
Patent GB-2021376-A (GB)
Title: Agricultural apparatus
IPC: B07B13/05
Filed: 1979-06-28
Abstract: An improved method for separating haulm from a crop comprises placing unseparated haulm/crop material on two opposingly rotating rollers 20, 22 which are resiliently urged towards one another, the axes of the rollers being substantially parallel but inclined at an angle to the horizontal, drawing the haulm between the rollers, allowing the crop, which is necessary larger than the haulm and does not pass between the rollers, to roll down the incline of the rollers, and collecting the crop in a suitable collecting means. <IMAGE>