baber/WOPTO huggingface dataset:
Patent GB-1244329-A (GB)
Title: Process of manufacturing nitrilotriacetonitrile
IPC: C07C255/25
Filed: 1968-11-28
Abstract: 1,244,329. Production of nitrilotriacetonitrile. STAUFFER CHEMICAL CO. 28 Nov., 1968 [18 Dec., 1967], No. 56546/68. Heading C2C. Nitrilotriacetonitrile is obtained by (a) reacting ammonia, formaldehyde and hydrogen cyanide together in the presence of a mineral acid to form methylene diaminotetraacetonitrile and (b) reacting said methylene diaminotetraacetonitrile with additional formaldehyde and hydrogen cyanide at a temperature of at least 100 C. to form nitrilotriacetonitrile. The reaction may be effected continuously under an autogeneous pressure of 5 to 100 p.s.i.g. The additional formaldehyde and hydrogen cyanide is preferably added in a molar ratio of 1 : 2 and the residence time of the reactants within reaction (b) suitably ranges between 3 and 15 minutes.
Patent GB-1446715-A (GB)
Title: Soap manufacture
IPC: C11D13/02
Filed: 1972-12-08
Abstract: 1446715 Drying toilet soap UNILEVER Ltd 7 Dec 1973 [8 Dec 1972] 56658/72 Heading C5D Toilet soap tablets having a reduced tendency to mushing are produced by a process comprising flash-cool-drying hot neat soap having a moisture content greater than 20% by weight, followed by milling and plodding, wherein the temperature of the flash-cool-dried soap is adjusted to a temperature of between 45‹ and 80‹ C. The process may be performed in a flashdrying vacuum chamber or by flash-drying into the atmosphere on to revolving cooling rolls. The process is particularly suitable for superfatted soaps having a content of free fatty acid.
Patent GB-1377376-A (GB)
Title: Process for producing cephalosporins
IPC: C07D501/20
Filed: 1971-12-08
Abstract: 1377376 Preparation of cephalosporins TOYAMA CHEMICAL CO Ltd 8 Dec 1971 57046/71 Heading C2C [Also in Division C3] A process for the preparation of cephalosporins of Formula I: wherein R is hydrogen, acetoxy, alkoxy or S-R<SP>1</SP> (R<SP>1</SP> is alkyl, aryl or a heterocyclic group), R<SP>1</SP> and R<SP>2</SP> are hydrogen or an optionally substituted alkyl, aryl, aralkyl, aryloxy, cycloalkane or heterocyclic group, or R<SP>1</SP> and R<SP>2</SP> may jointly form a ring; R<SP>3</SP> is hydrogen, halogen, hydroxyl, amino, alkylamino, azido, alkyloxy, alkylthio, benzyloxycarbonyl, benzhydroxycarbonyl, # - haloethoxycarbonyl, #,#,# - trihaloethoxycarbonyl or an alkoxycarbonyl group and n is 0 or 1, comprises reacting 7-aminocephalosporanic acids of Formula II: with silyl halides of Formula III: in which R 4  and R 5  may be the same or different and may be alkyl, haloalkyl, aryl, aralkyl, alkoxy, haloalkoxy, alkyloxyalkyl, aryloxy, aralkyloxy or halogen, R 6  is alkyloxy, aryloxy, haloalkyloxy or aralkyloxy and X is halogen, in the presence of a tertiary amine to protect the carboxyl group of the 7-aminocephalosporanic acids by forming a mixed acid anhydride grouping, then reacting the product obtained in the presence of an acid binding agent with acylating derivatives of carboxylic acids of Formula IV: and then solvolysing the product to remove the protecting group. Examples of cephalosporins which may be prepared by this process include 7 - (2 - thienylacetamido) cephalosporanic acid, 7 - (α - aminophenylacetamido)- cephalosporanic acid, 7 - (α - aminophenylacetamido) - 3 - desacetoxy cephalosporanic acid, 7 - (α - aminophenylacetamido) - 3 - methoxymethyl - 3 - cephem - 4 - carboxylic acid, 7 - [1 - (1H) - tetrazolylacetamido]- 3 - [2 - 5- methyl - 1,3,4 - thiadiazolylthiomethyl]- 3- cephem - 4 - carboxylic acid and 7 - [α - amino- (p - hydroxyphenyl) - acetamido] - 3 - desacetoxy-cephalosporanic acid.
Patent GB-1150470-A (GB)
Title: An Improved Ignition System Testing Device
Inventor: MORRIS ROBERT GARTFIELD
IPC: F02P17/12
Filed: 1967-12-15
Abstract: 1,150,470. Ignition testing. CHAMPION SPARK PLUG CO. Dec.15, 1967, No. 57054/67. Heading G1U. An ignition tester incorporates a spring-loaded, high resistance glow lamp 20 fitted in an insulating tube 11, which has a metallic pick-up head 13 rotatably mounted at one end and making contact with the tube. The head has a shaped recess 18 for engaging the ignition circuit wire 19 to which it will be capacitively coupled. The other end 22 of the tester is metallized, and will be earthed when held by an operator. If a spark plug or other part of the tested ignition circuit is short or open circuited, the lamp will be either very dim or very bright respectively as compared with normal operation.
Patent GB-1453316-A (GB)
Title: Removal of nitrogen oxides using coated catalyst
IPC: B01D53/86
Filed: 1973-12-10
Abstract: 1453316 Nitrogen oxide reduction EXXON RESEARCH & ENG CO 10 Dec 1973 [27 Dec 1972] 57067/73 Heading B1E [Also in Division Cl] A catalyst active for the selective reduction of nitrogen oxides and which comprises at least one non-noble transition metal oxide-containing active material on a porous refractory carrier comprising an alumina base and a coating of a second refractory oxide on said base is used in a process in which the quantity of nitrogen oxides in a gas stream containing oxygen is reduced by (a) adding at least 5 mole of ammonia per mole of nitrogen oxides and-(b) contacting the gas mixture in a reaction zone at at least 500‹F with said solid catalyst. The coating is preferably silica, titania, zirconia, ceria and/or thoria and the catalyst material is preferably an oxide of Fe, Co, Ni, Cu, V, Cr, Mo and/or W. In the Examples, a two stage reduction is effected using copper oxide on alumina in the first state and iron oxide on titaniacoated alumina in the second stage.
Patent GB-1339569-A (GB)
Title: Joining together of headers and tube plates of heat exchangers
IPC: B21D53/08
Filed: 1970-12-01
Abstract: 1339569 Making heat exchangers; jointing by stamping; seaming SOC ANON DES USINES CHAUSSON 1 Dec 1970 [4 Dec 1969] 57131/70 Headings B3A B3J B3Q and B3V A heat exchanger tube plate 3, 4 and header box 5, 6 are connected together by deforming an electrically conductive metal belt 16, which may be integral with the plate, towards the plate and box by subjecting the belt to a pulse generated by an electromagnetic field. The plate, the box and the belt are made of copper brass, steel or aluminium but the plate and box may alternatively be made of synthetic material. The lower water box 6 is supported on a pedestal 14 of a bed 13 on which rests an annular collar 7 of copper-beryllium. The internal surface 7a of the collar has a rim 15 of P.T.F.E. or polyamide to support the belt. A coil 8 extends around the collar and is supplied with electric pulses of about 50 milliseconds from the discharges of a capacity bank (9), Fig. 2 (not shown). The induced current in the belt creates a magnetic field which reacts with the coil field to cause the belt to warp around the flanges 18, 19, Fig. 3, of the plate 4 and header box 6a. In an alternative embodiment, Fig. 3a, the belt 16a is integral with the tube plate 4a. The periphery of the flange 18 may be provided with projections (16 1 ), Fig. 4 (not shown), to stretch the belt and a sealing gasket (20) of soft material or glue may be used. The inside wall of the flange 18 may be recessed (26), (28), Figs. 7 and 8 (not shown), to receive the edge of the tube plate (46). The rigidity of the connection can be increased by providing ribs (30), Figs. 9-11 (not shown), at the corners of the header box (6f). In another embodiment, Fig. 6 (not shown), the belt (16b) is deformed around flanges on the header box (23) and a tube envelope (21) to trap the tube plate (22) between the flanges. In a second form of device for connecting header boxes and tube plates. Figs. 12 and 14, the collar 7, is formed of copper-beryllium strip which can be shaped to fit around complex shaped header boxes. The collar 7 1  is enclosed in an insulated envelope and can distort to wrap the belt 16f 180 degrees around the flanges. The collar may be made up of several windings 7 1a , 7 1b , 7 1c  connected to a common or separate generator so that the outermost windings can produce a greater deforming force. Reference has been directed by the Comptroller to Specification 896,923.
Patent GB-1179556-A (GB)
Title: Switching Circuits
Inventor: PHOENIX LANCELOT
IPC: H02M3/10
Filed: 1966-05-27
Abstract: 1,179,556. Control of D.C. motors. JOSEPH LUCAS (INDUSTRIES) Ltd. 1 May, 1967 [27 May, 1966; 22 Dec., 1966], Nos. 23927/66 and 57351/66. Heading H2J. [Also in Division H3] The power to the traction motor 49 of an industrial truck is supplied through a switch 52 of the type which, once turned on, can only be turned off by reducing the current flowing through it below a threshold value (e.g. a thyristor, thyratron or four-layer diode), switch 52 being turned off by the application of a signal to a transformer winding 54 connected, in series with a diode 53, across the motor 49. As. shown, periodic turn-off pulses are derived from oscillator 33-39; capacitor 43 charges as the flux in core 34 collapses and when the flux next rises, thyristor 47 switches on to discharge capacitor 43 and provide, through transformer 46, the turn-off pulse for thyristor 52. A capacitor 58 is held discharged through diode 61 and thyristor 52 until thyristor 52 is rendered non-conductive, whereupon capacitor 58 charges through throttle-controlled variable resistor 56 until transistor 65 is rendered conductive to provide a turn-on pulse to thyristor 52 through winding 69 of transformer 64, 67, 69. Should the charging time of capacitor 58 be greater than the period of oscillator 34, 35 (a condition ensured by opening switch 59) thyristor 52 does not switch on. In a modification (Fig. 2, not shown) winding 54 forms the third winding of transformer 34, components 42-48 being omitted, and an R.C. timing circuit having a throttlecontrolled variable resistor is attached to the gate of thyristor 52 for periodically switching it on. Turn-off may be provided on either the rise or collapse of flux in core 34 and the collapse may be caused either by saturation of core 34 or of transistor 35.
Patent GB-1279935-A (GB)
Title: Device for lapping mating surfaces
Inventor: ISAEV ALEXEI ILICH
IPC: B24B15/08
Filed: 1970-12-04
Abstract: 1279935 Abrading KRAMATORSKY NAUCHNO ISSLEDOVATELSKY I PROEKTNO - TEKHNOLOGICHESKY INSTITUT MASHINOSTROENIA USSR 4 Dec 1970 57660/70 Heading B3D A device for lapping tapered mating surfaces on parts 4, 5, such as the bell and cup of a blast furnace charging device, comprises a stand 1 for rigidly fixing one, 4, of the parts, a disc 17 to which the other part 5 is fixed and which is secured to a vertical shaft 11 having a power drive 6 for effecting periodic separation of the parts, and two synchronously operating drives 19 arranged at diametrically opposite sides of the disc and interacting with radially protruding elements 18 on the disc to effect oscillating rotary motion of the part 5. The part 4 is mounted on the stand 1 which has a pair of vertical columns 2 supporting a cross-beam 3 having a bearing for the upper end of the shaft 11. The lower end of the shaft is received within a recess in the end of a rod 9 of a piston 8 movable in an hydraulic cylinder 7 of the power drive 6. An intermediate member 14 is mounted on bearings 12, 13 on the shaft and is bolted to the disc 17 to which the part 5 is secured. The disc is provided with a plurality of the radially-protruding elements in the form of teeth 18. Each of the columns has secured thereto a drive 19 consisting of a cylinder 20 which is secured to a guide 23 for a slide 24 connected to the rod 22 of a piston 21 in the cylinder. Each slide has a pair of cams 26, 27 which are urged to a vertical position by a spring 28. A stop 29 is secured to guide 23. In operation, the surfaces of the parts to be lapped are coated with an abrasive composition and the parts engaged with one another to an extent determined by a nut 10 on the rod 9. When the pistons 21 of the drives 19 are reciprocated, cams 26 engage the elements 18 to rotate the parts 5 until the cams 27 are depressed by the stops 29 so that upon reversal of the direction of motion of the slide, the cam 27 moves under the previously engaged element and engages the next element to rotate the part in the opposite direction for a lesser distance, the operation continuing until the part has moved through one complete revolution. Since opposite sides of the disc are engaged by the cams, no lateral forces are applied to the disc. At each reversal of direction of the part, the power drive 6 is actuated to momentarily separate the parts.
Patent GB-1292023-A (GB)
Title: Improvements in or relating to carpet grippers
Inventor: DENNY KEITH RAYMOND
IPC: A47G27/04
Filed: 1968-10-16
Abstract: 1292023 Carpet fasteners K M LAKEMAN & SONS Ltd K R DENNY and D R DENNY 14 Oct 1969 [16 Oct 1968 5 Dec 1968] 49145/68 and 57803/68 Headings A4S and A4U A stair carpet fastener comprises a pressed mild steel plate which is bent to a right angular cross-section to form apertured fixing flanges 5, and carpet-gripping flanges 7 pressed up from the flanges 5 having spaced sinusoidal edges with teeth 9 to grip a fold of carpet pressed therebetween. The fastener is supplied in lengths suitable to span a stair and is divisible into sections 1a, 1b by breaking or snipping at the parts 3. Reinforcing pressed ribs 10 are provided. In modifications, the flanges 7 are made separately and welded or riveted to the strip, or the fastener is of plastics material.
Patent GB-1201930-A (GB)
Title: Improvements relating to electrical drive units
IPC: H02P7/29
Filed: 1967-12-21
Abstract: 1,201,930. Automatic control of current. ROBERT BOSCH G.m.b.H. Dec.21, 1967 [Dec.21, 1966], No.58207/67. Heading G3R. [Also in Division H2] A control system for a D.C. motor 10, 11 (eg in stacking truck) comprises a thyristor 13 for controlling the motor current and a trigger device 37 for controlling the duty ratio of the thyristor according to the difference between a reference value and the mean value of the motor current, and a non-linear component (Zener diode) is provided which causes the thyristor to be switched off if the voltage across the motor becomes excessive. The system acts to limit the motor current, particularly during acceleration to a value set on a controller 42, but this value is opposed by a signal from a function generator 47 whose input is the motor voltage, so that an initially high value may be set for starting, which is then automatically reduced as the motor speed (and voltage) increases. The function generator comprises a transistor whose conductance varies with the motor voltage Fig. 6 (not shown). It also includes the voltage limiting feature which effectively limits the motor speed and is operative only when a stacking arm is extended. It comprises a capacitor charged by the motor voltage which, when sufficient to break down the diode, inhibits the trigger device. The system is otherwise as described in Specification 1, 201, 810 except that the second integrating circuit for the bridging contactor is not provided, and the motor is reversed by reversing the field 11.
Patent GB-1339639-A (GB)
Title: Valve arrangement in an internal combustion engine component
IPC: F02M31/06
Filed: 1971-12-21
Abstract: 1339639 Valves; bearings DAIMLERBENZ AG 21 Dec 1971 [23 Dec 1970] 59353/71 Headings F2V and F2A A valve flap 11 controlling flow in an engine exhaust manifold is mounted on a spindle 12 supported by conical bearing members 22, 24, each of 60 degrees included angle, abutting complementary surfaces 20, 21, the member 24 being axially adjustable upon release of a screw 25 engaging groove or flat 26. The spindle also carries a return spring 15 and a finger 16 engageable with stop 17. The member 24 may be integral with an eccentric damping weight, and automatic wear compensation may be provided by a spring engaging member 24.
Patent GB-1280477-A (GB)
Title: Improvements in or relating to electrical connectors
Inventor: FURNELL BRIAN DAVID
IPC: H01R13/28
Filed: 1969-12-09
Abstract: 1280477 Two-part couplings ETHER Ltd 9 Dec 1969 60054/69 Heading H2E A hermaphroditic connector 1 comprises a onepiece moulded insulating body 10 formed with an integral or metallic holder 11 having mounting holes 13. A bar 14 is fitted with spring contacts 16 hooked at one end over bar 14 and held in place by cut-out tongues (25, Fig. 2, not shown), at the other end. A recess 21 formed between bar 14 and a wall 20 of the body 10 receives bar 114 of an identical connector 100. Side walls 22 are formed between the wall 20 and the holder 11. The connector may be formed with two contact-carrying bars (201, 202, Fig. 5, not shown) and may have ridges (210, 211)formed on the bar (202) further from the wall (203) which fit in slots (212, 213) formed in the wall (203).
Patent GB-1248700-A (GB)
Title: Injection nozzle
IPC: B29C67/24
Filed: 1969-12-12
Abstract: 1,248,700. Injection moulding machines. TEMPCRAFT TOOL & MOLD Inc. 12 Dec., 1969 [15 May, 1969], No. 60733/69. Heading B5A. Hot wax &c. under pressure in a reservoir 14 is forced through openings 20 into a housing 10 and thence, when an axially reciprocable valve is open as in Fig. 5, through passages 34, 35, 28b, 31a into a mould 31. The valve comprises a plug 21 having a frusto-conical portion 21a to which a plug tip 27 is threaded, the whole being reciprocated by an hydraulic jack (not shown) having a piston rod 38. An escape passageway 33 (see also Fig. 2, not shown) is provided in the plug portion 21a to allow wax to return to the reservoir which would otherwise be trapped between the plug portion 21a and the valve surface 23 as the valve closes. The housing 10 carries a nozzle tip 28 and can be moved axially to co-operate with the mould 31 by means of twin hydraulic jacks (not shown) having piston rods (37). The nozzle tip 28 may have a generally spherical inner end 28a which is mounted in complementary bearing surfaces provided by parts 29, 30. The passage through the spherical part 28a of the nozzle tip is flared at 28c to allow for misalignment of the'tip 28 with the mould inlet 31a.
Patent GB-1303369-A (GB)
IPC: B05C1/08
Filed: 1970-12-30
Abstract: 1303369 Coating apparatus KALLE AG 30 Dec 1970 [30 Dec 1969] 61772/70 Heading B2L [Also in Division D1] A coating apparatus comprises a roller located in a trough having a body with end walls 1 and side walls 2, an aperture 4 in the base extending substantially along the length of the base, a fan-shaped feed pipe 5 extending downwardly from the aperture 4 towards a supply inlet and an overflow gutter 6 surrounding the trough and having at least one discharge outlet 9 therein. A catch surface 10 may be provided downstream of the roller to receive excess coating material doctored from the web 13. A perforated filtering wall 11 is provided between the catch surface 10 and the discharge outlet 9.
Patent GB-1274800-A (GB)
Title: Bidirectional locking devices
IPC: F16B1/04
Filed: 1970-12-30
Abstract: 1,274,800. Torque-sensitive brakes; band brakes; fluid-friction brakes. UNITED AIRCRAFT CORP. 30 Dec., 1970 [2 Jan., 1970], No. 61883/70. Heading F2E. A helically-wound spring or band brake 4 is located between an output shaft 2 and a fixed member 8. A rotatable input drive member 6 is formed to engage brake 4 (see below). The output shaft 2 has a peripheral excrescence 20 which is also adapted to engage brake 4; the output shaft has a load 10 suspended from it by a cable, and an extension shaft 14 connected to a pump 12. As shown, with member 6 at rest, the load urges peripheral part 20 against end 28 of brake 4 whereby the brake is expanded into a force fit with fixed member 8; the load is thus held suspended. To lower the load, drive member 6 is rotated counter-clockwise (as viewed from the left). Leg 22 of member 6 engages end 24 of the brake thereby contracting the brake and releasing it from fixed member 8, and at the same time pressing end 24 against peripheral part 20 on output shaft 2 to rotate the shaft. If the load tends to rotate shaft 2 faster than it is being driven, peripheral part 20 presses against end 28 of brake 4 thereby expanding it against fixed member 8 to check the load's descent. To raise the load, drive member 6 is rotated clockwise, whereupon leg 26 of drive member 6 engages end 28 of brake 4 to contract it and force end 28 against peripheral part 20 of output shaft 2 to rotate the shaft clockwise. Pump 12, which may circulate hydraulic fluid from conduit 16 through a pressure relief valve or orifice 19 and a heat exchanger 21 back to conduit 16, is operated by shaft 14 only when load 10 is being lowered, or is overhauling. In Fig. 2 (not shown) brake 4 is located between an outer drum to which the load is secured and an inner fixed cylindrical member; the drum has a toothed rim driven by a motordriven pinion and the reaction torque imposed on the motor casing by rotation of its rotor serves to rotate slightly, in the appropriate direction, a pivotable member resembling member 6 and having legs to engage the ends of brake 4. In this embodiment the brake 4 does not rotate. In Fig. 3 (not shown) brake 4 is again located between an outer drum to which the load is secured and an inner fixed member, but in this case the drum is driven in the appropriate direction to raise or lower the load by a drive member analogous to that in Fig. 1, with appropriate modification of the relationship between the driving legs (equivalent to 22, 26), the brake ends and the drum. In this embodiment the brake rotates during raising and lowering. In Fig. 4 (not shown), the output shaft, brake and fixed member are located as in Fig. 1, but the brake remains stationary during raising and lowering, and is held contracted to permit this by reaction of the casing of the motor which in this embodiment is directly connected to the output shaft.
Patent GB-725643-A (GB)
Abstract: 725,643. Making electrolytic condensers. STANDARD TELEPHONES & CABLES, Ltd. Sept. 25, 1953 [Dec. 20, 1952], No. 26451/53. Classes 83 (2) and 83 (4). Powder metallurgy.-In a method of making a sintered electrode for an electrolytic condenser, additional energy is supplied during the sintering process in order to weld the individual particles of the electrode to the lead-in wire or pin. The wire or pin is embedded in the powdered metal compact and during sintering additional energy is supplied, preferably to the wire or pin itself by electric heating. Where the electrode is of tantalum, the additional heat should be sufficient to decompose any tantalum oxide film which may have formed on the particles or on the pin. Welding of the particles to the pin may be further assisted by applying sonic or ultrasonic vibrations to the compact during sintering, preferably by way of the pin.
Patent GB-727242-A (GB)
Abstract: 727,242. Massage devices. BIRCH, R. A. Jan. 23, 1952, No. 1910/52. Class 81 (2). Apparatus for massaging the teeth and gums comprises two members each carrying a resilient massage element, one of these members being linearly slidable along the other, and means for reciprocating the members relative to one another so that the massage elements are reciprocated relative to each other. A handle 17 is provided with a channel portion 22 to which a band 23 for carrying a massage pad 33, Fig. 4, is attached. A second handle 16 is pivoted to the first handle 17 and carries a pin 19 which engages with a hole in a plate 26 which is slidable within the channel portion 22 and which carries a band 27 having secured thereto a massage pad 45, Fig. 6, which faces the massage pad 33 on the first band 23. On squeezing together and releasing the handles 16, 17, the bands 23, 27 are reciprocated relative to one another. Each massage pad 33, 45 is made of rubber and provided with two sets of knobs 38, 39, 42, 51, 54 for massage of the gums and cleaning the teeth respectively, two longitudinal ridges 40, 52 being provided for engagement with the upper and lower gum lines respectively. In an alternative construction a flat band (not shown) is attached to the channel portion and is provided with a massage pad having a concave middle portion. A band secured to the slidable plate is part circular and is also provided with a massage pad having a concave middle portion.