baber/WOPTO huggingface dataset:
Patent GB-1409107-A (GB)
Title: Injection moulding apparatus and method
IPC: B29C45/02
Filed: 1972-12-13
Abstract: 1409107 Injection moulding UNIROYAL AG 13 Dec 1972 [23 Dec 1971 19 April 1972] 57438/72 Heading B5A Articles are injection moulded by applying pressure to elastomeric material in an injection chamber to transfer the material through apertures in a flexible, heat-resistant, insulating plate into respective cavities in a heated mould, the mould and the injection device being relatively movable and being pressed into contact with opposite faces of the plate which surfaces conform to and seal any irregularities of the contacting faces of the mould and injection device. In Figs. 3 and 5 a platen 110, having steam passages 112 and attached to a stationary crosshead 106, carries a stationary piston 114 and a movable plate 116 forming an injection chamber 118 and carrying an insulating plate 122 with P.T.F.E. inserts 162 in the apertures. Mould plates 144-148 having inserts 156-158 forming mould cavities are attached to a crosshead 140 having heating passages 142 and raised by a ram 138. The rising moulds force the plate 116 upwards against springs 134 over the piston 114 to transfer the elastomeric material into the moulds. The insulating plate 122 is composd of asbestos fibres and a phenolic binder and has a liner of similar material 164 which may be faced with a metal foil. A baffle plate 166 between the insulated plate 122 and the moulds has apertures smaller than these in plate 122 so that the cured part of the spine becomes locked to it and thus can be removed. To make the plate 122 an unperforated plate with an uncured liner is pressed against the moulds and heated to cure the liner, thereby forming impressions of the mould apertures to indicate where to drill the plate apertures. In Fig. 8 a piston 220 injects material from cylinder 218 through a fixed platen into an injection cavity in a heated adaptor 224, and through insulated plate 246 into moulds carried by heated platen 256. Platen 256 is attached via insulating plate 254 to a plate 252 moved by toggle linkage 210. Further injection is effected by drawing the mould assembly away from the injector to permit further material to be forced from cylinder 218 into the injection chamber enlarging the cavity by displacement of the insulated plate which is slidable therein and sealed by a gasket 276. Movement of the mould assembly back towards the injector then causes the insulated plate to be forced into the injection cavity transferring material from there into the moulds. The mould assembly may be of the "flashless" variety, i.e. have thinner portions 68 (Fig. 2, not shown) interconnecting the sections containing the mould cavities to permit relative movement therebetween.
Patent GB-1111520-A (GB)
Title: Improvements in or relating to sense amplifiers
IPC: H03K5/02
Filed: 1966-12-23
Abstract: 1,111,520. Circuits employing bi-stable magnetic elements; transistor pulse circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. 23 Dec., 1966 [4 Jan., 1966], No. 57614/66. Headings H3B and H3T. [Also in Division G4] The quiescent collector currents of two transistors in a differential sense amplifier are equalized by a steady base bias current. The ends of a sense line 10 in a magnetic core memory are connected to the bases of transistors 18, 20 of a differential amplifier 12. The emitter of the transistors 18, 20 are connected to a common constant current source comprising potential source 26 and high resistance 28. Resistors 22, 24 connecting the ends of the sense line 10 to earth, terminate the line in its characteristic impedance, and variable resistors 54, 56 connecting the ends to a 6 volt source are set to equalize the quiescent collector currents of transistors 18, 20 by producing a bias current in sense line 10. During read-out, transistors 30, 88 are rendered non-conducting by gate and strobe pulses and any pulse produced by switching of the core 58 being read then causes one of two tunnel diodes 78 to traverse its negative resistance region and make a corresponding transistor 80 conduct, thereby producing a current in an output load 17. Capacitors 86, used for shunting high-frequency noise to earth, and resistors 74, 76 shown, may be omitted. The bias current in sense line 10 must not be so large as to significantly affect the operation of the cores 58-this can be avoided by choosing the resistance of the line 10 suitably or inserting a resistance in series with it, if necessary. Fig. 2 (not shown) shows a balance adjustment circuit including a null-reading voltmeter connected between the collectors of transistors 18, 20 and a single ammeter in series with both. Resistors 54, 56 are adjusted until the voltmeter reads zero, then resistor 28 is adjusted until the current has the desired value.
Patent GB-1420330-A (GB)
Title: Covering for tubular electrodes of leas accumulators
IPC: H01M4/76
Filed: 1972-12-14
Abstract: 1420330 Woven fabric VARTA BATTERIE AG 14 Dec 1972 [7 Feb 1972] 57642/72 Heading D1K [Also in Division H1] A preheated woven fabric for covering accumulator electrodes comprises plies one of which is shown having main warp and weft elements 1, 2 of glass fibre yarns and auxiliary warp and weft elements 3, 4 of synthetic thermoplastic shrinkable yarns which are more widely spaced than those of the main yarns and which lie predominantly on the inner surfaces of the respective plies. The plies join together along the lines 5. The fabric is heated in place on shaping cores.
Patent GB-1279089-A (GB)
Title: Battery charging systems
Inventor: HILL WILLIAM FRANK
IPC: H02J7/14
Filed: 1968-12-06
Abstract: 1279089 Automatic voltage control JOSEPH LUCAS (INDUSTRIES) Ltd 24 Nov 1969 [6 Dec 1968] 58155/68 Heading G3R The voltage of a battery 10 is maintained at a predetermined value by controlling saturable inductors 13, 15 connected between the output winding 11 of a permanent magnet alternator and a rectifier 12, the arrangement being such that the inductors are respectively saturated by the positive and negative half cycles passed by the diodes 14, 16 to form a low-impedance which is increased to a high value or maintained low according to the direction of current through a control winding 22, this direction being determined by the conduction or blocking of Zener diodes 17, 21 according to whether the battery voltage is above or below the predetermined value. The method of operation is reversed in a modification, Fig.2 (not shown) in which the members 13--16 are in parallel with the winding 11.
Patent GB-1421059-A (GB)
Title: Winding machine
IPC: B65H54/547
Filed: 1973-12-17
Abstract: 1421059 Avoiding critical rotational speeds BARMAG BARMER MASCHINENFABRIK AG 17 Dec 1973 [16 Dec 1972] 58297/73 Heading D1J A winding machine 1 comprises a tubular bearing member 2, Fig. 1, rigidly mounted in cantilever fashion on the winding machine, a rotatable chuck 7 for receiving the bobbin tubes, the chuck having a casing 8 defining a cylindrical spaced closed off on one side by a 755 hub 9 from which a shaft 10 of the chuck 7 rigidly projects concentrically into said space, a pair of bearings 11, 12 by means of which the tubular bearing member 2 is mounted on the shaft 10, the bearings 11, 12 being mounted in resilient elements 13, 14 in the bearing member 2 and being arranged symmetrically to the centre of gravity M of the chuck and package, and a rotatable contact roller 16 which is applied under pressure to the bobbin tube 5 or package 6. The peripheral speed of the package is measured by the contact roller 16. A drive motor 27, coupled to the chuck 7, is controlled by the speed measured by the roller 16 such that the peripheral speed of the package 6 remains constant. Alternatively the contact roller 16 is driven as a driving roller by a synchronous motor and drives the package 6 either alone or in conjunction with the drive motor 27. The shaft 10 has a rigidly mounted end 20 running in bearings 21; a middle section 19 and an outer end 10 that is made resilient by universal joints 23 that couple the three sections together. As shown in Fig. 4 the universal joints 23 may each comprise a shaped portion of the shaft in the form of two plate-like shaft tapers 24, 25 offset through 90 relative to one another. Alternatively, Fig. 5 (not shown), the joints 23 may constitute weakened portions of the shaft made by cutting threads in the shaft. The invention is stated to so lower the critical winding speed of the shaft that it is always below the range of speeds of the shaft during a package winding cycle.
Patent GB-1357626-A (GB)
Title: Method of marking consumer goods
IPC: G09F3/10
Filed: 1971-12-17
Abstract: 1357626 Labels DUCELLIER & CIE 17 Dec 1971 [29 Dec 1970] 58853/71 Heading B8F A label is partly adhered to an article at the time of manufacture, leaving a flap which is not stuck down until the article is sold. This flap may be printed with symbols denoting months and figures denoting years so that the date of sale can be indicated using a punch prior to sticking down.
Patent GB-1242160-A (GB)
Title: Isoquinolines
IPC: C07D217/20
Filed: 1969-12-08
Abstract: 1,242,160. Isoquinoline derivatives. TANABE SEIYAKU CO. Ltd. 8 Dec., 1969 [10 Dec., 1968], No. 59764/69. Heading C2C. Novel compounds I where R is alkanoyl and R<SP>1</SP> is a trimethoxy phenyl radical and their salts are prepared by reacting the corresponding 6,7-dihydroxy-derivatives in which the -NH- group is protected in the form of an acid addition salt or with a protecting group with an acylating agent, e.g. RCOCl and if necessary removing the protecting group by known methods. 1 - (3,4,5 - Trimethoxybenzyl) - 2 - benzyloxycarbonyl - 6,7 - diacetyloxy - 1,2,3,4 - tetrahydroisoquinoline is isolated as an intermediate. Pharmaceutical compositions for enteral administration as bronchodilators, and cardiotonic and hypotensive agents comprise a compound I in admixture with a suitable excipient.
Patent GB-603055-A (GB)
Abstract: 603,055. Ticket-issuing machines. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., KERSHAW, N. G., and MASON, R. Nov. 17, 1945, No. 30929. [Class 106 (iii)] A machine for printing and issuing railway tickets comprises a movable, endless printing chain, together with arrangements for indicating the printing position to which the chain is set, these arrangements comprising relatively movable elements one of which bears three or more groups of destination indications, the other element bearing one or more cursor or marker lines, the direction in which the chain should be moved to bring more quickly into printing position an indication other than for that which the chain is set being indicated by the group in which the other indication is included or by arrows or the like on the element bearing the cursor or marker lines. Endless chains passing over sprockets 9, 10, 12, 13, Fig. 1, carry three sets of detachable station-indicating plates 4, side-by-side, but staggered alphabetically in relation to each other. Only a third of the total number of plates 4 is visible at a -time through a glass panel 25, but as each set comprises a whole range of stations, the relative staggering of the three sets enables the whole range to be visible at any time. The station appearing on the central band at a cursor line 26 (which may be provided with magnifying means) corresponds with the setting of an endless printing chain 21, Fig. 6, which is driven from the shaft 11, Fig. 1, by a chain 16. To reset the chain to another station with a minimum of movement, the operating wheel (not shown) is rotated in a clockwise direction if the next station appears in the right-hand column on the indicator, or anti-clockwise if in the lefthand column. In a modification, the movable indication bands are replaced by a stationary panel on which the names of the stations are indicated in three or more groups arranged side by. side and comprising, as a whole, the complete range of stations. A transparent indicator band provided with marker lines or their equivalent is adapted to be moved over the panel in synchronism with the printing chain, the transparent band also bearing arrows or like marks indicating the proper direction of movement of the printing chain. A rotary brush 33, driven through gears 29, 30, 31, may be provided for automatically cleaning the type 22 on the printing chain.
Patent GB-2000127-A (GB)
Title: Preparation and dehydrogenation of cycloalkanol derivatives
IPC: C07C43/196
Filed: 1978-06-08
Abstract: A method of preparing a 2-cycloalkanol ether, a 2-alkylamino-cycloalkanol or a 2-hydroxylamino-cycloalkanol, comprises reacting on alkanol, an alkylamine or hydroxylamine with a cycloalkene oxide in the presence of a catalyst selected from mineral acids, other acids, ion exchange resins, acidified earths and acidic salts. A 2-cyclohexanol ether, 2-alkylamino-cyclohexanol or 2-hydoxylamino-cyclohexanol prepared in accordance with with this method may be dehydrogenated to produce and ortho-substituted petrol.
Patent GB-2003137-A (GB)
Title: Process for the preparation of homogentisic lactone
IPC: C07D307/84
Filed: 1978-07-13
Abstract: Process for the preparation of homogentisic lactone by reacting hydroquinone with a di(lower alkyl) chloro (or bromo) malonate and an alkali metal lower alkoxide to give an alkali metal 1oxidobenzo[b]furan which is subsequently decarboxylated by treatment with a strong mineral acid to give homogentisic lactone. The latter is readily converted into homogentisic acid by conventional means.
Patent GB-2006516-A (GB)
Title: Manufacturing lamps
IPC: H01J9/46
Filed: 1978-09-04
Abstract: In the manufacture of low pressure mercury lamps, e.g. fluorescent or mercury arc lamps, the desired amount of mercury is provided by a metering device, and this mercury particle is coated with a chemically stable powder, e.g. a metal oxide such as zirconium oxide or aluminium oxide, before being introduced into the lamp. The manufacture of the lamp in a turret machine includes the steps of fitting bulbs through each evacuating pipe to each evacuating head communicating to an evacuating device; weighing mercury by a mercury weighing device to take up each constant weight of mercury particle; coating the mercury particle with a chemically stable powder; and charging the coated mercury particle through an evacuating head into each bulb together with an inert gas as a seal gas. Drops of mercury metered from the Hg storage container 17 fall onto rotatable funnel-shaped body 28 whose inner slant surface 26 is covered with the chemically stable powder which is picked up by the mercury as it rolls to the feeding orifice 27. <IMAGE>
Patent GB-2007667-A (GB)
Title: Process for the Preparation of  beta -Lactam Compounds
IPC: C07D503/00
Filed: 1978-09-29
Abstract: This invention provides a process for the preparation of the compounds of the formula (I> <IMAGE> and esters thereof wherein R1 is an inert organic group of up to 14 carbon atoms and R2 is an inert organic group of up to 16 carbon atoms, the NR1R2 group containing up to 22 carbon atoms, which process comprises the reaction of a compound of the formula (II> <IMAGE> wherein X is Cl, Br or I and A is a group such that CO2A is an ester group with a compound of the formula (III> HNR1R2 (III> wherein R1 and R2 are as defined in relation to formula (I) and thereafter if desired converting the thus formed ester to the acid.
Patent GB-2006372-A (GB)
Title: Safety Guards for Machine Tools
IPC: F16P3/00
Filed: 1978-10-20
Abstract: A safety guard for a machine tool comprises a bar 19 mounted on a movable trolley carried by rails 18 extending away from the machine tool. The rails are supported by springs 20 which can be deflected if an operative leans on the bar and means 27, 29 is provided which prevents operation of the machine tool unless the trolley is in its outermost position away from the machine tool and the springs are not deflected. <IMAGE>
Patent GB-2007298-A (GB)
Title: Evapoation carburation system
IPC: F02M31/04
Filed: 1978-10-25
Abstract: The charge for an internal combustion engine is comprised of a mixture of heated fuel-vapor-laden air and ambient air drawn through an air filter in a conventional manner. The vapor-laden air is obtained by first heating air in a heat exchanger (15) to a given temperature by picking up heat from the engine's exhaust. The heated air is then drawn through a fuel-saturated air permeable element (21). Fuel is delivered to the air permeable element (21) and continuously circulated thereover. As the heated air passes through the element (21) it becomes laden with fuel-vapor; and, is cooled to a second temperature that is substantially below the first. The cooled fuel-vapor-laden air is then mixed with additional air and the resulting charge is delivered to the engine's intake manifold.
Patent GB-2036806-A (GB)
Title: Spring steel and the production thereof
IPC: C21D9/02
Filed: 1978-11-30
Abstract: The present invention relates to a high-strength spring steel which is obtained by heating the surface of a steel to over the AC3 transformation point by high-frequency induction heating or the like, stopping the heating and then decreasing the surface temperature of said material steel preferably to below the Ar1 transformation point and by self- quenching, this short-time heating of the surface being repeated to secure heating throughout the entire steel body or a condition close to it. The steel is then quenched, whereby the crystal grains in the steel become increasingly finer from the core to the surface layer of the steel, the crystal grain size of the metal in the surface layer being particularly fine.
Patent GB-2018725-A (GB)
Title: Securing load carriers to goods waggons
IPC: B60P7/13
Filed: 1979-04-12
Abstract: A device secures load carriers, such as containers, to goods waggons and enables said containers to be conveniently transferred from a truck onto a goods waggon and to be securely locked thereto and also to be conveniently transferred from the goods waggon onto a truck without the aid of hoisting equipment. For this purpose the goods waggon is equipped with locking members 8 which are arranged to be moved to their inoperative position (as shown) by a pusher means 4 provided at the rear end of the truck and acting on rod 25 when the truck backs up against a side 35 the goods waggon. The members 8 are arranged to be moved by the action of springs 31, 32 into engagement into a notch at the bottom part 5 of the container to retain and secure the latter on the goods waggon as soon as the action of said pusher means 4 on said rod 25 ceases, i.e. when the truck is driven away from the goods waggon. <IMAGE>
Patent GB-2035934-A (GB)
Title: Adjustable rake angle outboard motor bracket
IPC: B63H20/08
Filed: 1979-04-25
Abstract: An outboard motor bracket includes means to adjust the outboard motor rake angle no matter what angle of the transom or other portion of the boat the bracket is to be attached. <IMAGE>
Patent GB-2023949-A (GB)
Title: Power supply circuits
IPC: H02M3/07
Filed: 1979-06-04
Abstract: In a power supply system where a supply battery 12 is connected between a positive line 10 and earth 11 a negative supply V- is provided by a circuit comprising an operational amplifier oscillator (13, R1 to R4, C1) a buffer amplifier (14, R5, R6) and a diode pump (C2, C3, D1, D2). The supply terminals of the operational amplifier (13) are connected to the positive line (10) and the output of the diode pump respectively, so that when the circuit is first connected to the supply the operational amplifier is initially connected between the lines (10, 11) through the intermediary of the diodes of the diode pump. The operational amplifier then starts to oscillate and switches the buffer amplifier, in the form of transistor 14 connected between the positive line and earth, on and off alternately to cause a charge to be pumped into capacitor C3 connected between earth and the required negative supply in a direction so that the negative supply voltage is built up. <IMAGE>
Patent GB-2023237-A (GB)
Title: Wind turbine generator control
IPC: F03D7/04
Filed: 1979-06-15
Abstract: The pitch angle of the wind turbine blades (10) is controlled in closed loop manner to maintain either constant electrical generator (26) speed, for isolated power generating stations or when the generator is synchronized to the load, or constant generator (26) output power or shaft torque when the generator is connected to an electrical grid. Open loop acceleration and deceleration schedules are provided to minimize blade stress and shaft torque variations during start up and shutdown transients, limiting blade angle excursions as a function of wind velocity and speed. The gains in the speed (60), torque (64) and power (66) loop controls are scheduled as a function of average wind velocity to optimize stability and response. An anticipatory blade angle schedule responsive to instantaneous wind velocity is added to the desired blade angle reference from the closed loop controls to minimize transient excursions in output power or generator speed resulting from wind gusts. <IMAGE>
Patent GB-2025430-A (GB)
Title: Method for reducing electrostatic charging on shaped articles of polyvinyl chloride resins
Filed: 1979-06-25
Abstract: The method comprises the steps of (a) blending a surface active agent with the polyvinyl chloride resin prior to fabrication of the resin into a shaped article, (b) fabricating the resin admixed with the surface active agent into a shaped article, and (c) subjecting the shaped article to a treatment with low temperature gas plasma.
Patent GB-2027654-A (GB)
Title: Support stand
IPC: B60S11/00
Filed: 1979-08-03
Abstract: A support stand for supporting a jacked-up motor vehicle comprises a pedestal 1 and a pair of arms 2 and 3. The arm 2 is pivotally attached, at one end, to the pedestal 1, the other end of the arm 2 serving to support the motor vehicle. One end of the other arm 3 is pivotally attached to an intermediate point of the arm 2, the other end of the arm 3 being fixable to the pedestal 1 at any one of a number of angles corresponding to various height settings of the upper end of the arm 2, and thus of the motor vehicle. This support stand can be applied to a motor vehicle standing on its own wheels, is capable of automatically following the vehicle as it is jacked up, and can support the jacked-up vehicle in a number of different height positions. <IMAGE>
Patent GB-2057766-A (GB)
Title: Electrical contact arrangement
IPC: H01H1/28
Filed: 1979-08-28
Abstract: A fail-safe change-over contact assembly includes front, back and heel contact elements formed as elongated leaf spring members 3, 4, 5 which are fixed to a molded insulative contact block 10. A silver contact button 4b, 5b is rivited to the respective free end of the front and back leaf spring members 4, 5 while a silver impregnated carbon contact block 3b is soldered to the bifucated free end of the heel leaf spring member 3 so that neither of it the front and back contacts cannot become welded to the heel contact. <IMAGE>
Patent GB-2032287-A (GB)
Title: Solid uncured golf ball center
IPC: A63B37/02
Filed: 1979-09-05
Abstract: A substantially spherical, solid golf ball center comprises a non-cross- linked, butadiene-styrene radial block copolymer having a butadiene content of between 50% and 85% by weight and a molecular weight of at least 150,000, and a filler material contributing at least one-half of the weight of the ball centre. An additional butadiene-styrene copolymer may be used which has 50% - 85% by weight of butadiene and a molecular weight of at least 300,000. The preferred filler is Barium Sulphate. An extender of Paraffinic oil and an antioxidant of a Phenol may also be incorporated.
Patent GB-2062841-A (GB)
Title: Power station utilizing geothermal energy
IPC: F24J3/08
Filed: 1979-08-10
Abstract: A power station is housed in a building, Fig. 2, which is designed to split lava flow from a volcano to allow ash and rocks to roll off it. An indirect heat exchange system is provided for extracting geothermal heat for producing steam to drive the power station turbine. <IMAGE>