baber/WOPTO huggingface dataset:
Patent GB-1218560-A (GB)
Title: Epoxidation of olefinically unsaturated compounds
Inventor: STEIN THEODORE WOLFLIN
IPC: C07D301/19
Filed: 1967-12-21
Abstract: 1,218,560. Epoxides. HALCON INTERNATIONAL Inc. 21 Dec., 1967 [30 Dec., 1966], No. 88116/67. Heading C2C. In the production of epoxides by the liquid phase catalytic reaction between an olefinically unsaturated compound and an organic hydroperoxide the reaction is carried out below "autogenous pressure" while maintaining the reaction temperature at a level sufficient to volatilize a portion of the liquid phase reaction medium. Autogenous pressure is defined as the bubble point pressure of the liquid reaction medium at the reaction temperature. Suitable olefins are, for example, aliphatic and aromatic mono-oleflnic hydrocarbons, butadiene, vinylcyclohexene, allyl alcohol, methallyl alcohol, diallyl ether, emthyl methacrylate, methyl oleate, methyl vinyl ketone and allyl chloride. Preferred hydroperoxides are ethylbenzene hydroperoxide, tertiary butyl hydroperoxide, and cyclohexanone peroxide. The preferred catalysts are those containing molybdenum, titanium vanadium and tungsten. An example is given of the conversion of propylene to propylene oxide.
Patent GB-1371635-A (GB)
Title: Thermally responsive switches
IPC: H01H1/58
Filed: 1971-12-15
Abstract: 1371635 Thermal switches KYSOR INDUSTRIAL (GREAT BRITAIN) Ltd 15 Dec 1971 58206/71 Heading H1N A thermal switch comprises a temperature sensor 18 operating a switch 50 having terminals 78a, 78b, 78c mating with terminals 80a, 80b, 80c on the housing and a compression spring 70 urging terminals 78a, 78b, 78c towards terminals 80a, 80b, 80c. Sensor 18 pushes pin 20 which pushes members 60 and 62 to push pin 64 which depresses button 56 to actuate switch 50. Compression spring 80 provides for overtravel of pin 20. Compression spring 70 retracts pin 20 when the temperature cools down, as well as acting through plastics sleeve 52 on to switch 50 to urge terminals 78a, 78b, 78c into terminal clips 80a, 80b, 80c. In a second embodiment, Figs. 9, 10 (not shown) two switches 250, 250a are provided actuated by two pins 264, 264a pushed by members 160, 262, pins 264, 264a being of different lengths to actuate switches 250, 250a at different temperatures.
Patent GB-1164160-A (GB)
Title: N,N-Disubstituted Amino Acid Derivatives and their use as Herbicides
Inventor: YATES JOHN
IPC: A01N37/46
Filed: 1966-12-30
Abstract: 1,164,160. Herbicides containing amino acid derivatives. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 20 Nov., 1967 [30 Dec., 1966], No. 58406/66. Heading A5E. [Also in Division C2] A herbicidal composition comprises an N, N-disubstituted amino acid derivative of the formula:- wherein R represents a halogen atom or an alkyl or alkoxy group, n represents 0 or an integer from I to 5, and when n is greater than 1 each R group may be the same or different, R<SP>1</SP> represents an alkylene group, R<SP>11</SP> represents an alkyl, alkoxy, aryl or an aryloxyalkylene group, and Y represents a carboxy group or salts or esters thereof, or a carbamoyl group optionally mono- or di-N-substituted, together with a carrier and/or a surface active agent. The carrier, which may be a solid or fluid, may be inorganic or organic and of synthetic or natural origin, and the surface active agent, which may be non-ionic or ionic, may be a wetting, emulsifying or dispersing agent. The compositions may be formulated as wettable powders, dusts, granules, solutions, emulsifiable concentrates, pastes, or invert or conventional emulsions, and they may contain conventional additives such as stabilizers, penetrants, stichers, slow release modifiers, binding agents or corrosion inhibitors. Other additives which may also be present are protective colloids, sodium polyphosphates, cellulose -ethers and other herbicides or pesticides. Many examples of the active compounds are described.
Patent GB-1241590-A (GB)
Title: Apparatus for coating plates, sheeting or strip materials with thermoplastics
IPC: B32B15/08
Filed: 1968-12-13
Abstract: 1,241,590. Coating webs. BADISCHE ANILIN- & SODA-FABRIK A.G. 13 Dec., 1968 [13 Dec., 1967], No. 59320/68. Heading D1L. [Also in Division B2] Apparatus for coating plate, sheet or strip materials comprises an inner tube open at one end to receive coating material, closed at the other end and formed with discharge openings, an outer tube of larger diameter co-axially surrounding the inner tube, closed at both ends and formed with a longitudinal discharge slot, a member arranged below the outer tube for supporting the sheet or strip material to be coated by discharge from said slot, and power-driven draw-off rollers arranged on one side of the support member. Thermoplastic material in fluid condition is delivered to the open end of an inner pipe 2 closed at its other end, and issues through openings 20 in pipe 2 to fill the space 3 between the latter and a coaxial pipe 4 of larger diameter having both ends closed. The material issues from space 3 through a longitudinal slot 7 formed in pipe 4 to coat a sheet or web 13 which, after passing under and in engagement with an adjustable bar 12; is supported on a tubular member 9 and is drawn away by power-driven rollers 11. Member 9 is evacuated to apply suction to sheet 13 through holes formed in the upper portion thereof, and is vertically adjustable for varying the distance 22 between members 4 and 9 to be filled with the coating material. The surface of member 9 may be recessed to provide an embossed pattern effect. The coating may be applied to an endless band and be stripped therefrom for producing thermoplastic sheeting. Member 4 may be heated by means 14. As a specific example, a mixture of bitumen and ethylene copolymer having a viscosity of about 1200 poises at a temperature of 190 degrees C. forms a coating 8 mm thick on cold-rolled sheet steel 0.2 mm thick and 800 mm wide to provide water-proof lining for tunnelling.
Patent GB-1291474-A (GB)
Title: A foreground object locating device
Inventor: TAKAOKA TAKASHI
IPC: G01S17/18
Filed: 1969-12-05
Abstract: 1291474 Range display; colour television TOKYO SHIBAURA ELECTRIC CO Ltd 5 Dec 1969 [5 Dec 1968] 59442/69 Headings H4D and H4F A ship or aircraft &c. is provided with a closed circuit television display of objects 24/28, Fig. 1, potentially in its path, the objects being illuminated by laser light pulses 16, P 1 P 2 , Fig. 2A, at field repetition rate 1/Tr. The reflection 21 of a light pulse from an object is received back after a time proportional to its range. The video output of the television camera Fig. 2F is gated through to the receiver and display 23 by a range gate pulse Fig. 20, which advances by a range increment for each field. Successive fields of the display are laid down in different colours Fig. 2E, such that the display shows the objects in their correct spacial positions and in colours indicative of the range increment, #l 1 , Al 2 , Al 3  in which they occur. The range gate pulses, Fig. 20, are produced by means of delay circuit 17 acting on the pulses from generator 14 which pulse the laser 13. If the delay Td between the pulses, Fig. 2A, from generator 14 and the laser pulses, Fig. 2B, is too large to be ignored, a photo-electric laser pulse monitoring means 29 produces pulses synchronous with, Fig. 2B, and feeds these instead to delay circuit 17. The pulses from generator 14 are also used to switch over the colour of the display. So that the camera tube does not miss the reflections, they are received by an image intensifier having its input gated by the range gate pulses and having an output storage screen with a long persistance.
Patent GB-1354338-A (GB)
Title: Automatically and hydraulically selfadjusting play-compensating  unit for the valve gear of internal combustion engines
IPC: F01L1/24
Filed: 1971-12-22
Abstract: 1354338 Making hydraulic tappets MOTOMAK MOTORENBAU MASCHINEN-UND WERKZEUGFABRIK KONSTRUKTIONEN GmbH 22 Dec 1971 [24 Dec 1970] 59667/71 Heading B3A [Also in Divisions F1 and F2] An hydraulic clearance adjusting unit for I.C. engine valve gear comprises an outer cylinder member 1 adapted to be fixedly connected to a push rod 6 and an inner piston member 2 adapted to co-operate with a rocker. A pressure chamber 3 defined between the members 1 and 2 is connected to an oil supply chamber 5 in the member 1 by a non-return valve 4. The members 1 and 2 include a cup-shaped part of drawn sheet metal or formed by impact extrusion which is not subjected to machining other than surface finishing, e.g. lapping. The cup-shaped part of the member 1 may be welded or force fitted, Figs. 4 and 5 (not shown), to a part 13 which is force fitted into or on to, Fig. 5, the push rod 6. The member 2 may have the part 24 forming the non-return valve seat integral with or welded to the cup-shaped part. A part (30), Fig. 8 (not shown), for co-operation with the rocker may be fixedly connected to the cupshaped part (29) of the member 2. Oil may be supplied to the chamber 5 from the push rod 6 through the space 7 between the member 1 and the sheet metal sleeve 8 or from the rocker.
Patent GB-1390510-A (GB)
Title: Circuits adapted to produce output signals of constant slope
IPC: G06G7/22
Filed: 1972-01-31
Abstract: 1390510 Function generator M L ANTHONY and T E DORN 31 Jan 1972 60876/71 Heading G4G [Also in Division H3]  A function generator defined as having - a response to an input voltage step of either polarity which produces an output having a constant slope, comprises an integrated solid state amplifier 21 having in series with its output a capacitor 28 and a small current sensing resistor 29, the voltage across the resistor being fed back into an input of the amplifier, the circuit also comprising a D.C. negative feedback path having an input resistance at least an order or magnitude greater than the sensing impedance. The circuit may be used as an integrator to provide a constant slope at the edges of a step pulse or to convert a squarewave to a triangular wave, a subsequent similar circuit converting the triangular wave to an approximate sine wave (Figs. 2 and 10, not shown). Further shaping may be effected by a feedback type clipper (Fig. 15, not shown). Threshold diodes 32, 33 may be included in the path from the current sensing resistor so that the feedback is ineffective for slow variations of input signal and the output follows such variations. It is explained with reference to Fig. 7, that the circuit may thus be used, for pulses, as a low pass filter having an abrut transition to the cut off range or used as a linear phase shifter. If the circuit is connected in the feedback path of an amplifier a differentiator or high pass filter is provided (Fig. 14, not shown). If the input signal is applied to terminal 22 the slope of the output is independent of signal amplitude (Figs. 5 and 6, not shown). A variable resistor, such as a field effect transistor, shunted across the current sensing resistor will vary the output slope. Greater accuracy may be obtained by . replacing the current sensing resistor by a low input impedance (virtual earth), amplifier (Fig. 13, not shown), and removal of the step due to threshold of the diodes may be effected in a further differential amplifier which subtracts the diode voltage drop from the output (Fig. 17, not shown), in which the input at TO3 is proportional to the voltage between 31 and the virtual earth 22). A phase changing amplifier may be connected in the stabilizing feedback path 34 in which case the feedback is connected to the other input terminal 3 and A.C. feedback may be exlcuded from the path by using as the feedback voltage the mean value of the positive and negative peak levels of the output signal, derived by peak rectifiers (Fig. 9, not shown).
Patent GB-680288-A (GB)
Abstract: 680,288. Accounting-machines. NATIONAL CASH REGISTER CO. June 20, 1950 [July 25, 1949], No. 19513/49. Class 106 (i). In an add-subtract machine for dealing alternatively with sterling and another (e.g. decimal) currency, and provided with separate totalizers for the two currencies, selection of the totalizer restricts or not the movement of the tens of shillings differential actuator and similarly conditions the associated subtract mechanism. In the sterling-decimal mechanism shown, the three lower key banks are used for pence, shillings and tens of shillings; the corresponding differential stop-bars 1, 2 and 3 have a maximum movement of 11, 9 and 9 steps respectively, a stop 30 limiting movement of the bar 3 to one step when registering sterling and a stop 34 blocking and disabling the bar 1 when registering decimal amounts. The stops 30, 34 are connected together for joint movement transversely of the bars. The stop 30 is formed on a bell-crank 26, connected through levers 22, 14, 10 and a link 6 with a totalizer selecting lever 8, so that the stops are positioned automatically according to whether the sterling or decimal totalizer is selected. Subtraction is effected by adding-in the appropriate complements through the agency of complementary levers. The complementary lever for the tens of shillings-tens key bank is shown at 4 and when, as shown, the mechanism is adjusted for sterling, a stop-lever 44 is positioned to limit movement of the complementary lever to one step by engagement of an upper tooth 45 in a notch 47 of the lever 4. The stop-lever 44 is loose on the end of a spindle 27 and held by a spring 49 against a stop 51. When a ten shillings entry is made (by.depression of any key), the movement of the usual zero stop 41 for the stop-bar 3 rocks an arm 39 clockwise and a second arm 42, connected therewith by a sleeve 38, rocks the stop-lever 44 correspondingly, so bringing a lower tooth 46 into register with the complementary lever 4 for engagement in the notch 47. This arrests the complementary lever in the zero position. When the selecting lever 8 is operated to engage the decimal totalizer, a finger 31 on the stop 30 rocks the arms 39 and 42 further clockwise to move the stop-lever 44 clear of the complementary lever 4 which is then free to make its full nine steps of movement under control of the stop-bar 3. Specifications 598,524, 600,746 and 606,627 are referred to.
Patent GB-695655-A (GB)
Abstract: 695,655. Detecting approach of overtaking vehicles. BRITISH THOMSON-HOUSTON'CO., Ltd. March 21, 1951 [March 28, 1950], No. 6769/51. Class 118 (ii). In warning devices for detecting approach of overtaking vehicles of the type wherein a relay 6 operates contacts 7 to give an alarm when a warning sound signal e.g., a hooter signal, is received a further relay 10 in series with the contents of armature 7 and a main switch 11 has an armature 12 with double contacts 13, 14 arranged to produce "winking" of the alarm device 9, e.g. a lamp. The contact 13 is normally made, but when the contacts of armature 7 are closed the relay 10 opens contact 13 and closes contact 14 to short-circuit a resistance 15 in series with the lamp 9 which thereon brightens. The opening of contact 13 causes relay 10 to release and repeat the cycle. The steady feeble glow of lamp 9 when relay 6 is not energized serves to indicate to the driver that the system is switched on. Fig. 1 (not shown) illustrates a receiver circuit that may be used in combination with the invention and comprises a microphone, band-pass filter, rectifier and alarm relay.
Patent GB-741546-A (GB)
Abstract: 741,546. Watch stands. SEAGER, J. H. April 7, 1953 [April 4, 1952], No. 8603/52. Class 52(5). ' A watch stand comprising a two-part, interfitting casing 1, 2, notched at 3 for the pendant is provided with a base for maintaining the casing upright, preferably in the form of a pair of cylindrical feet 7.
Patent GB-1303408-A (GB)
IPC: C12N9/74
Filed: 1971-10-04
Abstract: 1303408 Fractionating blood BAXTER LABORATORIES INC 4 Oct 1971 [2 Oct 1970] 46017/71 Heading A5B Glycine is added to citrated blood to produce antihaemophilic factor (AHF) as a precipitate and a plasma supernatent. The supernatent may be worked up by precipitation with polyethylene glycol (PEG) of M.W. c.200 to c.20000 and treatment with tricalcium phosphate to produce a prothrombin complex as shown in the diagram. The precipitate may also be treated as indicated with PEG and glycine to yield an AHF concentrate.
Patent GB-2027102-A (GB)
Title: Cladding for, e.g., Ducting in Factories
IPC: F16L59/12
Filed: 1978-06-23
Abstract: A cladding system for, e.g. air ducts 11, comprises frame members 2, 3, assembled together by, e.g., wire clips 7, and having edge grooves, e.g. 6, to retain cladding sheets (not shown) which can, in turn, hold insulating material 12 in position around the ducts. Guard members 15 can be employed to protect the insulation when the limbs 4 of the frame members are drilled to allow them to be fixed together. <IMAGE>
Patent GB-2001426-A (GB)
Title: Flame failure detection system
IPC: F23N5/24
Filed: 1978-07-25
Abstract: A flame failure detection system based on flame ionisation comprising an electrically conducting burner casing 1, first and second electrodes 2, 4 insulated from each other and located in use in a burner flame, and defining a flame sensing circuit in which said second electrode is arranged to collect the small electrical current which flows between said electrodes in the presence of a flame. <IMAGE>
Patent GB-2006076-A (GB)
Title: Conveying workpieces
IPC: B21D43/10
Filed: 1978-09-07
Abstract: A method is disclosed for the control of the drive of a workpiece conveyor for processing machines, in which the drive for the conveyor is independent of the drive of the processing machine. In particular, the drive of a gripper bar device on a press is controlled in such a manner that upon reaching a predetermined travel point of the tool, the gripper bar also reaches a predetermined point of its path. The path of a press ram may be scanned and the gripper bar drive be controlled by parameters thus obtained, each point of the path of the ram being associated with a point of the path of the gripper bars. The control of the gripper bar drive may be dependent on the path of the press ram.
Patent GB-2009233-A (GB)
Title: Protective Coating
IPC: C23C4/067
Filed: 1978-11-16
Abstract: A protective coating for heat- stressed parts is applied by a plasmatic or high-temperature spray. The coating is composed of nickel and also 0.1% to 20% by weight of chromium, 0.1% to 7% by weight of silicon, 0.1% to 5% by weight of boron and up to 8% by weight of iron. Optionally up to 5% by weight each of Mo, Co, W and Cu may be present.
Patent GB-2008586-A (GB)
Title: Benzazepines
IPC: C07D223/16
Filed: 1978-11-17
Abstract: 6-Lower alkyl-7, 8-dihydroxy-1-phenyl-2,3,4,5-tetrahydro-1H-3-benzazepines of formula:   <CHEM>  in which:  R is a lower alkyl of 1-6 carbons; R1 is hydrogen, benzyl, phenethyl, lower alkanoyl of 1-5 carbons, lower alkyl of 1-5 carbons, lower alkyenyl of 3-5 carbons, furyl methyl, thienylmethyl or phenacyl; R2 and R3 are each hydrogen, lower alkyl of 1-5 carbons, lower alkanoyl of 2-5 carbons, benzyl or, when taken together, methylene; and R4 is hydrogen or one or two substituents from the group comprising trifluoromethyl, halo, methyl, methoxy, acetoxy, hydroxy or methylthio; or pharmaceutically acceptable, acid addition salts thereof show dopaminergic activity. Intermediates and chemical methods for preparing them are described. An important species is 6-methyl-7,8-dihydroxy-1(p-hydroxyphenyl) -2,3,4,5- tetrahydro -1H-3-benzazepine, as the base or one of its salts, which has antihypertensive activity.
Patent GB-2013563-A (GB)
Title: Method and Apparatus for Producing a Modified Plasterboard
IPC: B28B19/00
Filed: 1978-12-11
Abstract: The invention relates to a method and apparatus for the production of plasterboard wherein cardboard sheet material 8 is continuously fed along a predetermined path along which its edges are turned up to form a trough shaped configuration, plaster mash for the core is deposited from device 6 on the cardboard sheet material and spread and levelled thereover, glass fibre sheet material 33 permeable to the plaster mash is continuously applied over the spread and levelled mash and pushed into the plaster mash to be covered thereby and the upturned edges of the cardboard sheet material arc cut or trimmed to the level of the plaster mash. Before the plaster mash has set, one or more additional glass fibre sheets may be continuously applied over the plaster mash and pushed thereinto and covered thereby, the glass fibre sheets being pushed to different levels within the mash. <IMAGE>
Patent GB-2012055-A (GB)
Title: Titration Control Apparatus
IPC: G01N31/16
Filed: 1979-01-19
Abstract: An apparatus for controlling the concentration of a chemical solution by titrating to a neutral point has means (18) for producing a signal proportional to the difference between a measured pX (A) value and a pX setpoint value (B), the term pX indicating the negative logarithm of the ion concentration of a component X in the solution. Further means (2, 4, 10, 12, 14) produce a signal proportional to the antilogarithm of whichever is the greater of the divergences of the measured pX value and the pX setpoint value from neutral point value (c). Means (16) are provided for computing the product of these two signals to produce an output signal. <IMAGE>
Patent GB-2014421-A (GB)
Title: >Casting device
IPC: A01K91/02
Filed: 1979-02-07
Abstract: A ballistically-shaped fishing weight 10 cooperates with a discharger 12 secured to the end of a fishing rod (not shown). The fishing line (not shown) passes through a ring 44 on the discharger and through a swivel eye 34 on the weight, the hook(s) being secured to the line on the other side of the eye 34. The fishing weight 10 is formed from two interengaging housing portions 14, 16 which define a cavity in which adjustment weights 36 may be placed. A slot 46 in the discharger 12 allows passage of a loop of line when the line is released by the angler in casting to cause the weight 10 to leave the discharger 12. <IMAGE>
Patent GB-2014933-A (GB)
Title: Conveying and sorting apparatus
IPC: B65G23/36
Filed: 1979-02-09
Abstract: A conveying and sorting device consisting of a number of carriers (3) having thereon tippable trays (15) for carrying loads. The device includes a flexible vertical entrainment belt (1) for the carriers which is in turn driven from a series of individual drive centres (2). <IMAGE>
Patent GB-2069399-A (GB)
Title: Percussive Tool
IPC: B25D11/12
Filed: 1980-02-12
Abstract: A percussive tool has a housing (1), a cylinder (2) mounted in the housing, and hammer and drive pistons (8, 6) reciprocable in the cylinder with a gas cushion 9 therebetween. Ports (12) in the piston allow escape of gas from the gas cushion when the drive piston is in the bottom dead centre position, and a port (14) in the cylinder admits gas to the gas cushion from a space (3) between the cylinder and housing when the drive piston (6) is in the top dead centre position. <IMAGE>
Patent GB-2075928-A (GB)
Title: Adjusting vehicle suspensions for tipping
IPC: B60P1/18
Filed: 1980-04-30
Abstract: A trailer has a tipping load platform and means to raise its rear end, said means comprising a frame 22 on one end of which the wheel axle 20 is supported, the other end being pivotally attached to the trailer chassis 10 and a linkage including a first sub-frame 28 pivotally mounted to the chassis intermediate its ends, a second sub-frame 32 pivotally connected between one end of the first sub-frame and the free end of said frame 22 and an hydraulic ram 26 connected between said frame and the other end of the first sub-frame. The arrangement thereby prevents the front end of the trailer from moving upwards during tipping by raising the rear end of the trailer and moving the wheels 18 towards the rear. <IMAGE>