baber/WOPTO huggingface dataset:
Patent GB-1318296-A (GB)
Title: Device for conveying helical wire springs
IPC: B21F3/00
Filed: 1970-08-21
Abstract: 1318296 Endless conveyers SPUHL AG 21 Aug 1970 [19 March 1970] 40311/70 Heading B8A In a production line, wire springs 25 are fed stepwise by two opposing belts 29 (only one shown) and are oriented such that joints 72 of the springs are positioned on a centre line 123. Means for raising the joints 72 to the line 123 comprises a slider 136 vertically movable by a pneumatic cylinder 131. In the region of the slider, the springs are guided by an upper strip 115 and a lower strip 139. When the belts 29 are at rest, the slider 136 is raised and its upper edge engages the joint 72 of the middle spring which is thus correctly orientated, Fig. 3 (not shown). After lowering the slider to the shown position the belts are advanced to commence an orienting cycle on the next spring. There may be a slider 136 associated with the other belt 29, for engaging the joints 72 at the other ends of the springs.
Patent GB-1360358-A (GB)
Title: Commutators
IPC: H02K13/10
Filed: 1972-08-31
Abstract: 1360358 Commutators GENERAL ELECTRIC CO 31 Aug 1972 [1 Sept 1971] 40327/72 Heading H2A [Also in Division H1] Sparking at a brush/commutator contact is reduced by placing metal oxide varistor material between adjacent commutator segments, the material providing a low resistance current path at the moment when a brush and segment part contact, but rapidly increasing its resistance as the current level falls. In the embodiment shown in Fig. 2, the commutator comprises conducting film segments 12 on a solid varistor body 10, but in that of Fig. 3 (not shown) the segments are in the form of bars (15) disposed in slots (14). In the embodiment of Fig. 4 (not shown), a hollow varistor body 10 on a spider system (17) is used, whilst in Fig. 5 (not shown) conductive bars (15) and varistor spacer bars (10) are mounted to form a cylinder. In the embodiment of Fig. 8 (not shown), varistor material (26) is placed in parallel with a centrifugal switch (25; see Division H1). The varistor material in all cases is a polycrystalline ceramic, e.g. zinc oxide with the addition of the oxide of bismuth, aluminium, iron, magnesium or calcium.
Patent GB-1016976-A (GB)
Title: Low inductance and capacitance electrical cartridge and method of manufacture
IPC: H01L23/051
Filed: 1963-10-14
Abstract: 1,016,976. Diode housings. BENDIX CORPORATION. Oct. 14, 1963 [Oct. 18, 1962], No. 40502/63. Heading H1K. A low inductance and capacitance cartridge for a semi-conductor diode, Fig. 2, comprises two conductive members spaced apart by an insulating cylinder 26. The diode element is conductively mounted on, one of the members and engages the other via a bellows spring 29 bearing on its opposite face. In the embodiment the conductive members are of tellurium copper and the cylinder of alumina. The cartridge is assembled after soldering the silicon mesa diode to member 23 by pushing the goldplated nickel bellows over boss 27, assembling the parts as shown with solder rings in grooves 24, 25, and heating in a flow of hydrogen. The assembly is cooled in vacuum to avoid formation of blowholes in the solder as it cools.
Patent GB-1272546-A (GB)
Title: Piezoelectric crystal assembly
IPC: H03H9/09
Filed: 1970-08-24
Abstract: 1,272,546. Piezoelectric crystal mountings. ELECTRO DYNAMICS CORP. 24 Aug., 1970 [12 June, 1970], No. 40617/70. Heading H1E. A piezoelectric crystal assembly comprises a crystal 20 with electrodes 32 supported inside a tubular insulating frame 22 by circumferentially spaced resilient conducting tabs 48 integral with end caps 24, 26 whose axially extending flanges 46 provide a tight fit on the frame 22. The resilient tabs 48 engage each side of the bevelled or thinner margin portion 34 of the crystal and make electrical contact with the contact strips 36. The crystal is tuned when assembled inside the frame and end caps by deposition of metal on the electrodes through openings 44 provided in the end caps. After adjustment of frequency, insulative end covers 28, 30, e.g. adhesive paper, are applied and the assembly is encapsulated in a potting material. The resilient end caps may be made of brass or beryllium.
Patent GB-1404428-A (GB)
Title: Manufacture of titanium dioxide pigments
IPC: C09C1/00
Filed: 1973-08-29
Abstract: 1404428 Treating TiO 2  pigments KRONOS TITAN GmbH 29 Aug 1973 [2 Sept 1972 40751/73 Heading C1N TiO 2  pigment is sieved and then subjected to a dry rolling process in the presence of a finely divided metal or metalloid oxide having an average primary particle size of 10-20 nm. The oxide may be SiO 2 , Al 2 O 3  or TiO 2 , which may be coated with SiO 2 , Al 2 O 3  or silicone oil. It may have a surface area of 10-400 m.<SP>2</SP>/g. and may be added before or during rolling. Silicates, phosphates of alkali or alkaline earth metals alkaline earth carbonates, metal soaps or polyhydric alcohols may be used in addition to the metal or metalloid oxide. The sieve may have a mesh size of 0À3-5À0 mm. The rolling may be effected continuously or batchwise in rotary drums, tubes or plates. The TiO 2  pigment may be anatase or rutile and may have been treated with Al 2 O 3 , Al 2 O 3 +SiO 2 , or Al 2 O 3  + organic coating. The treated pigment is free flowing and stacking resistant.
Patent GB-1244192-A (GB)
Title: Chromium coordination catalysts
IPC: B01J31/22
Filed: 1968-08-26
Abstract: 1,244,192. Polymerisation catalyst. COLUMBIAN CARBON CO. 26 Aug., 1968 [28 Aug., 1967], No. 40771/68. Heading B1E. [Also in Divisions C3 and C5] A process for the polymerisation of butadiene, isoprene or piperylene uses a catalyst comprising a composition derived from (a) an organic chromium compound in which Cr is present in a cationic valence state (b) a reducing agent component selected from the group consisting of metals of groups I to III and compounds of said metals and containing hydrocarbyl, hydrocarbyloxy groups and hydrogen and (c) a halogen containing component selected from the group consisting of RBr, RI and (R') n QX, wherein R is an aromatic or heterocyclic ring, each R' is a H, halogen, aliphatic, aromatic or heterocyclic group, X is a halogen, Q is B, C, Si or a non-metallic element of Groups V through VII and n is the valence of Q minus one, the atomic ratio of halogen to Cr in said catalyst components being from 1:1 to 25:1. Typical (a) anions of the Cr components include -SO 4 , -Cl, -NO 3 , oxide, carboxylate, ester and chelate; typical (b) components are Bu n Li, EtNa, Et 2 Zn, NaH. CaH 2 , LiAlH 4 , Me 3 B, metallic K, Mg and Al, and especially R 2 R 3 R 4 Al where R's are H, hydrocarbyl or hydrocarbyloxy; and (c) components include BCl 3 , NCl 3 , Cl 2 O, C1F, SiC1 4 , PCl 3 , SCl 2 , SbBr 3 , AsI 3 , Me 2 TeBr 2 , and 2, 5- dibromothiophene.
Patent GB-1478407-A (GB)
Title: Systems for producing electrical signals
IPC: F02P17/04
Filed: 1974-09-20
Abstract: 1478407 Signal generators ROBERT BOSCH GmbH 20 Sept 1974 [22 Sept 1973] 41030/74 Heading G1N [Also in Division H3]  Apparatus for signalling the top dead centre, TDC, position of the crank-shaft of an I.C. engine comprises a disc 10, Fig. 1, mounted on the crankshaft axle 11, with a metal insert 12 corresponding to TDC which produces a pulse as it passes by a pick-up coil 13. The pulse is integrated at 23, 25 and fed to an amplifier 29, acting as a threshold switch, whose output forms one input to AND gate 35, the other input being obtained from  transistor 21 which is triggered when the amplified pulse from coil 13 passes through zero. Thus the output from gate 35 is a pulse whose leading edge coincides with TDC, and the circuit ignores noise impulses picked-up by coil 13.
Patent GB-1388935-A (GB)
Title: Sealing of synthetic resin body surfaces
IPC: B29C65/08
Filed: 1972-09-06
Abstract: 1388935 Sealing synthetic resin bodies; seaming SIEMENS AG 6 Sept 1972 [22 Sept 1971] 41251/72 Headings B5A and B5K The surfaces of synthetic resin bodies containing openings, recesses, &c. are sealed by applying mechanical vibratory motion under pressure to the surface to be sealed to displace the material into the openings, recesses, &c. until a closed surface is achieved. The vibration is preferably ultrasonic. As shown, in Fig. 3, a contact plate 1 has a plurality of grooves 2 ending in openings 4. Contact strips 6, 7 having alternately differing lengths are placed in grooves 2, their ends 8 being located in openings 9 for connection, e.g. to contact springs, and their other ends 11 being bent at right angles, e.g. for soldering to the connecting elements of a printed circuit board. A vibratory head 12 is applied to the surface of grooves 2, producing a closed surface at 13.
Patent GB-1450978-A (GB)
Title: Remote test circuit for carrier telephones
IPC: H04J1/00
Filed: 1974-09-23
Abstract: 1450978 Carrier telephone systems SEISMOGRAPH SEVICE CORP 23 Sept 1974 [29 Oct 1973] 41274/74 Heading H4K In a carrier telephone system including an exchanger coupled to a least one substation by a line pair, the transmitter at the substation is tested with the telephone on-hook, by reversing the line polarity at the exchange to switch on the transmitter, the exchange including means for detecting the carrier frequency to give an indication of the operability of the transmitter. The system comprises a plurality of substations 16 which each communicate over a line 14 with a respective carrier channel unit 12 using a different carrier frequency for each direction. A switching unit 17 interconnects the various carrier channel units to provide for interstation connections. To test the transmitters at each substation 16 a button 42 is depressed to reverse the line current. In each substation transceiver 15 a circuit including diodes and transistors is switched to supply power to the substation's transmitter as if the substation had gone offhook. Each carrier channel unit 12 responds to the receipt of a respective carrier frequency from its associated station to turn on a light emitting diode. Figs. 2 and 3 (not shown) illustrate respectively a channel unit 12 and station circuit 15, the station circuit including an incoming transistor speech amplifier. A power supply circuitincluding a Zener diode and a rectifier bridge for powering the station from the line is also shown. Substations are rung by superimposing a 300Hz signal on the carrier of the substation concerned to energise a ringing circuit at the substation.
Patent GB-1048649-A (GB)
Title: Improvements relating to rolls for roller presses
IPC: D21F1/06
Filed: 1963-10-18
Abstract: 1,048,649. Rollers. U. J. STRINDLUND. Oct. 18, 1963 [Oct. 19, 1962], No. 41312/63. Heading F2U. [Also in Division D2] A perforated press roll for a paper-making machine, comprises a series of discs 5 keyed to a core 1 andaxial passages 7a in the roll communicate with openings 24 on the surface of the roll. The discs may be stainless steel or a non-ferrous metal. The discs 5 are urged together by springs 9 which act through a non-rotatablo ring 8 on an end plate 6 keyed to the core. In Fig. 5, each disc 5 has a series of holes 7 connected to openings 24 by radial slots and alternate discs are reversed to stagger the slots and openings. The holes 7 in all the discs are aligned to form the passages 7a. In Fig. 10, the passages are connected to the openings by ducts 27 formed by recesses 28 in the discs. In Fig. 11 (not shown), flat discs are interposed between recessed discs. In Fig. 12 two slots 31 extend from each hole 7 part-way towards the roll surface and non- aligned slots extend radially inward from the openings 24. During assembly, alternate discs 5 are reversed and the slots 31 in one disc are aligned with slots connected to the openings 24 in an adjacent disc. In the above embodiments, vacuum is supplied to passages 7a connected to openings at the nip. A channel 14 in the ring 8 is divided into sectors connected to high and low vacuum, compressedair and steam sources, which respectively remove water from the nip, eject water from the passages and clean the passages and ducts. In Fig. 16 (not shown), two holes 7 are connected by ducts 34, 35 to the openings and vacuum is supplied to one passage whilst compressed-air is supplied to the other. The compressed-air thus forces the water from the nip into the suction passage.
Patent GB-959096-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B7/085
Filed: 1960-12-01
Abstract: 959,096. Photographic cameras; automatic light intensity control systems. ZEISS IKON A.G. Dec. 1, 1960, No. 41359/60. Headings G2A and G3R. Coupled diaphragms in front of the objective and a photoresistance in a camera are adjusted by a motor energized in accordance with a relay in bridge circuit containing the photoresistance to maintain the intensity of light on the photoresistance constant. Any current in the diagonal 11, 12 of the bridge 1 due to light falling on the photoresistance 5 energizes a relay 13 which closes one of contacts 15, 16 to energize the motor 17 which adjusts the diaphragms until the bridge is balanced. A lamp 23 in the viewfinder indicates that adjustment is proceeding. If the limit of adjustment is reached before balance of the bridge results, one of limit switches 18, 19 is actuated to stop motor 17 and light a lamp 20. Other exposure factors must then be varied, simultaneously varying one or more of resistances 2, 3, 4. Lamps 20, 23 may illuminate the viewfinder image through different coloured filters or illuminate letters or symbols which are reflected into the viewfinder. An indication may be given when the film is exhausted. The automatic control is disconnected to permit manual control or to conserve the battery during storage by switches 24, 25 and switch 33 is provided to check the battery voltage. Plug and socket connections 26, 27 and 32 are provided for remote control.
Patent GB-417131-A (GB)
Abstract: 417,131. Regulating combustion. BAILEY METER CO., 1050, Ivanhoe Road, Cleveland, Ohio, U.S.A.-(Assignees of Hardgrove, R. M., and Allbright, J. C.) March 28, 1933, Nos. 9314 and 9315. Convention dates, April 2, 1932 and May 9, 1932. [Class 51 (i).] In a furnace burning different kinds of fuel simultaneously, such as pulverized coal and blast furnace gas or blast furnace gas and coke oven gas, the air supply is controlled in accordance with the rate of air flow through the furnace which varies with the rate of supply of certain of the fuels. The Figure shows a boiler plant fed with pulverized coal through a burner 3 and blast furnace gas through a conduit 9, air being supplied with the pulverized fuel and through an air box 10 surrounding the gas burner 4. Steam generated in the boiler flows through the main 14 and the steam flow is indicated by the pointer 19 of a meter 18 on a scale 20. The air flow through the furnace is indicated on a meter scale 25 by the pointer of a beam 24 carrying floating bells 26, 27 on opposite sides of the fulcrum 23 and subjected to pressure from two points in the boiler passes through pipes 28, 29. The beam 24 also carries floating bells 45, 47 subjected respectively to suction by a pneumatic tachometer 8 driven by the fuel feed motor 6 and to pressure from the gas main 9. The pointer 19 and beam 24 are connected by links to a bar 35 pivoted at 36 and provided with electric contacts 37, 38. Any departure from a given value of the air flow through the furnace or of the relation between the steam flow and air flow causes one or other of the contacts 37, 38 to close and control an electric motor 13 for operating the stack damper 12. Should the supply of one or other of the fuels be varied the beam 24 will become unbalanced and the air flow will be corrected for the change in proportion of the two fuels. The lever 24 may be provided with scales 50, 51 graduated according to the calorific values of the fuels or according to the percentage of excess air at which it is desired to burn the fuels. In a modification coke oven gas and blast furnace gas are supplied through valve controlled pipes to a burner, the pipe supplying coke oven gas being connected to a flow meter which through a system of levers affects the value of the air flow through the furnace.
Patent GB-1441506-A (GB)
Title: Chelated technetium-99m
IPC: A61K51/04
Filed: 1974-09-25
Abstract: 1441506 Technetium-99m chelated with 2- mercapto isobutyric acid F HOFFMANN-LA ROCHE & CO AG 25 Sept 1974 [18 Oct 1973] 41716/74 Heading C2C [Also in Division A5] 2-Mercapto isobutyric acid labeled with technetium-99m is obtained by mixing solutions of 2-mercapto isobutyric acid a reducing solution such as stannous chloride and technetium-99m pertechnetate.
Patent GB-1255247-A (GB)
Title: Lead-acid accumulators
Inventor: LAUCK H
IPC: H01M10/10
Filed: 1969-08-21
Abstract: 1,255,247. Polymerization in sulphuric acid. VARTA A.G. 21 Aug., 1969 [24 Aug., 1968], No. 41831/69. Heading C3P. [Also in Divisions C1 and H1] A composition comprises a stable gel or solid mass containing concentrated sulphuric acid, the gel or solid comprising organic compounds polymerized in situ the gel or solid mass releasing sulphuric acid on treatment with water. The preferred organic compounds are acrylic acid or polymerizable acrylic acid derivatives (e.g. methacrylic acid or acrylamide). The compounds may be polymerized by the addition of one or more cross-linking agents e.g. methylene-bisacrylamide, methacrylic acid allyl ester, or cyanic acid triallyl ester. The composition may also contain an inert solid material which increases the porosity of the gel or solid, e.g. Kieselguhr. Before addition to the composition, the Kieselguhr may be saturated with sulphuric acid. The composition may be formed by forming a mixture of 3-10% by weight of acrylic acid or polymerizable acrylic acid derivative, a cross-linking agent and cone H 2 SO 4  and optionally a catalyst and polymerizing the mix to form a gel or solid mass. The sulphuric acid may have a concentration of 60- 95% by wt. The catalyst used may be peroxides or persulphates and 50-70% of Kieselguhr impregnated with cone H 2 S0 4  may be added to the mixture before polymerization. The composition may be attached to a support or supporting structure which support may be porous and impregnated with the composition. The article so formed may be enclosed by a microporous synthetic polymer sheet material. The composition may be used as the electrolyte of a lead acid accumulator.
Patent GB-1029799-A (GB)
Title: Engraving machine
IPC: B44B3/00
Filed: 1963-10-23
Abstract: 1,029,799. Engraving apparatus. H. SCHMIDBAUER. Oct. 23, 1963 [Oct. 26 1962 (2),; Aug. 21, 1963], No. 41846/63. Heading B6J. An engraving machine for wedding rings &c has a horizontally displaceable, template controlled stand 1 and a vertically disposed spindle mount 11 for an engraving tool 4. Clamping means 2 for the workpiece 3 has a supporting surface 5 for the workpiece which surface extends obliquely to the axis of rotation of the tool 1. In Fig. 1, the spindle mount 11 is displaceable vertically by the co-operation of a screw 15 with a surface 14 parallel to the surface 5. In a modification, Fig. 2 (not shown), the spindle mount 11 is fixed, but the clamping means 2 is provided with a supporting surface 5 and a surface 14 is pivoted to the stand 1. In a further.modification, Fig. 4 (not shown), the screw 15 and surface 14 are replaced by a tubular shroud for the tool 4, the edge 36 of the shroud engaging the workpiece and acting in the same manner as the screw 15 on the surface 14. The stand 1 is displaced horizontally by a mechanism, Fig. 6 (not shown), which includes a control bar 45 mounted in a Carden joint 46, one end of the bar in engagement with the template, the other engaging the stand 1 with a ball and socket arrangement.
Patent GB-1498237-A (GB)
Title: Force measuring transducer with frequency output signal
IPC: G01G3/16
Filed: 1975-10-15
Abstract: 1498237 Force-measuring transducers N-I I KONSTRUKTOR INST ISPYTATELNYKH MASHIN PRIBOROV I SREDSTV IZMERE-NIA MASS 15 Oct 1975 42184/75 Heading G1G A force P to be measured is applied to one end 6 of an integral elastic body 2 comprising flexible joints 5 and a resonant web 18 to vary the frequency of an electromechanical self-excited oscillator 15, 16, 17, 18 and the base 3 of the body 2 is held within and spaced from the protective casing 1 by three pointed supports 8 engaging a groove 7 with a minimum of distortion of the oscillations in the body 2. Two of the supports 8 are fixed, the third, shown in Fig. 1, being biased by a flat spring 11. Adjustment stop 19 prevents overload. The casing is rotatable in bracket 20 for adjusting the sensitivity of the transducer.
Patent GB-1046399-A (GB)
Title: Improvements in or relating to packaging and dispensing means
Inventor: HARRIS TREVOR ANTHONY
IPC: A47F1/08
Filed: 1964-10-16
Abstract: 1,046,399. Dispensing cartons and stands. TAYLOWE Ltd. Oct. 1, 1965 [Oct. 16, 1964]. No. 42316/64. Heading B8P. Cardboard containers D, each enclosing a stack of articles, are supported on a cardboard stand S, and their contents dispensed under gravity through apertures defined by lines of weakness, or slits, 14, 15. The stand S comprises two box-like shelves 1, 2 connected to a backboard 3, which may also be of box-like formation, and adapted to be hung on a wall. The shelves have slots or pockets into which the containers fit. The containers have false bottoms 16 in line with the lower line of weakness 14.
Patent GB-1513654-A (GB)
Title: Injection moulding machine
IPC: B29C45/54
Filed: 1976-10-14
Abstract: 1513654 Injection moulding WERNER & PFLEIDERER 14 Oct 1976 [6 Nov 1975] 42707/76 Heading B5A An injection moulding machine for rubber or thermosetting plastics comprises a ram injection unit 8 fed by a plasticizer 7 through a duct which alternatively connects the injection unit to the injection nozzle by the operation of a valve means comprising a conical lift valve for closing off the plasticizer 7 from the injection unit 8 a piston valve which, when the lift valve opens, enters the bore of the injection nozzle and completely fills it to prevent residual material being cured in the duct adjacent the mould. The piston valve member and a control piston are connected co-axially with the lift valve.
Patent GB-1101798-A (GB)
Title: Improvements in or relating to control mechanisms for flashing lights, particularly for direction indicator lights on motor vehicles
IPC: B60Q1/38
Filed: 1965-10-08
Abstract: 1,101,798. Road traffic signals on vehicles REGIE NATIONALE DES USINES RENAULT. 8 Oct., 1965 [16 Feb., 1966], No. 42752/65. Heading G4Q. A flasher unit C includes resistances 8 and 10 which, in conjunction with switch E1, allow the turn indicating lamps G1, G2, D1 and D2 to be operated at reduced intensity by night whilst maintaining the flashing rate unaltered. By day switch E1 is closed, and when the turn switch S is operated current flows through the  heating wire F until it expands sufficiently to  allow contact 6 to close, when the lamps G or D are energized through coil L and terminal J  until the wire cools again. At night switch E1  is open, and after the wire F has expanded the lamps are energized through coil L resistance 8, and terminal H; a small current continues to  flow through the wire F and resistance 10 and  the consequently slower cooling rate of the wire  F compensates for the lower holding current  through the coil L so that the flashing rate  remains unaltered if the resistances 8 and 10  are suitably chosen. A second armature 5 energizes a warning lamp 12 for a given value of current in the coil L, and a second switch E2 dims the brake lights by night. Switches El and E2 may be operated by the vehicle light switch either directly or by a relay, or may be operated by a photo-cell in response to ambient light.