baber/WOPTO huggingface dataset:
Patent GB-1169172-A (GB)
Title: Improvements relating to the Control of Gas Flame Characteristics
Inventor: ANDREWS RONALD WILLIAM JOHN
IPC: C03B23/043
Filed: 1965-09-24
Abstract: 1,169,172. Automatic temperature control. SOUTH EASTERN GAS BOARD. Nov. 11, 1966 [Sept.24, 1965], No. 40775/65. Heading G3R. A system wherein the heat produced by, and the height of, a gas flame are controlled in order to control an industrial process such as glass working at metal soldering, comprises means whereby the proportions of air and gas in and the pressure of, the fuel supplied to the flame are automatically controlled. Gas from a source 13 and air from a source 14 are fed to a plurality of burners 10 used in an industrial process by way of a machine 12 wherein the air and gas are mixed, a non-return valve 18, a compressor 20 by-passed by a valve 21 and an oil filter 22. A portion of the gas/air mixture is bled by a pipe 26 and fed to two measuring device 25, 50 by way of a filter 27. The device 25 comprises a pilot gas flame in which is situated a thermocouple responsive to the heat of the flame and operative by means of a relay device 44 and an electric motor 45 to control a lever 15 in the machine 12 thus to control the proportions of gas and air in the fuel and consequently the heat output of the gas flames 10. The fuel in the pipe 26 is also fed to a second pilot flame in the measuring device 50 wherein variations of the fuel pressure cause a device 52 such as a relay operated electric motor to actuate the by-pass valve 21 so as to regulate the fuel pressure fed to the gas flames 10 such as to maintain the height of the flames constant. The device 12 may be a SELAS machine and the device 50 a WOBBE number recorder.
Patent GB-1255528-A (GB)
Title: Pseudo voltage controlled oscillator
Inventor: FUJIMOTO YOSHIAKI
IPC: H03K4/501
Filed: 1969-08-14
Abstract: 1,255,528. Pulse modulation circuits. NORTHROP CORP. 14 Aug., 1969 [3 Sept., 1968], No. 40780/69. Heading H4L. [Also in Division G4] A pulse modulation arrangement constituting a voltage controlled oscillator includes an integrator to which a signal voltage is applied, a one-shot multivibrator 35 which is connected to the output of the integrator, and a reference frequency source providing a sequence of clock pulses Tr connected to the multivibrator input to trigger the multivibrator, whereby the markspace ratio of the multivibrator output is a function of the signal voltage. The width of multivibrator output pulses is progressively increased or decreased by the integrator output in successive cycles to provide a progressive phase shift of their trailing edges with respect to the clock pulses. The arrangement is stabilized by applying the integrator output to the multivibrator via an operational amplifier 36, and providing a feedback path which includes a chopper and low-pass filter 39 and 40. As shown, the. clock pulses Tr are applied-to the transistor Q5 of the one-shot multivibrator 35 formed by transistors Q5 and- Q6 and associated capacitor, the trailing edges of the pulses turning off transistor Q5 to give, in the absence of any input from the integrator to the operational amplifier 36 formed by transistors Q1, Q2 and Q3, a multivibrator output of constant markspace ratio at the frequency of the Tr pulses. NAND gates 41 and 42 reshape the multivibrator output and provide opposite polarity rectangular pulse outputs OS and OS<SP>1</SP>; for the output OS<SP>1</SP>, the leading edges of the output pulses correspond to the clock pulses Tr, while the trailing edges are employed to trigger a flip-flop to produce an output sequence of pulses having a repetition rate which equals that of the clock pulses for the case of no input to the integrator. For a constant D.C. input voltage to the integrator, the ramp output of the amplifier 36 controls the current through transistor Q4 which in turn controls the turn-on time of Q5, whereby the durations of the OS<SP>1</SP> pulses, and hence the times of occurrence with respect to the clock pulses of the flip-flop pulses derived from their trailing edges, are progressively changed to provide an output flip-flop pulse repetition rate which is a linear function of the D.C. input to the integrator. The feedback circuit to amplifier 36 includes the chopper formed by transistors Q7 and Q8, and the low pass filter formed by R4 and C1 To permit continuous operation: despite the limitation upon total phase shift of the trailing edges of the multivibrator pulses imposed by the unmodulated mark-space ratio (Fig. 9, not shown), logic circuitry (Figs. 3a and 7, not shown) is included, to advance or delay the triggering of the multivibrator by one clock pulse when the phase shift exceeds a predetermined positive or negative value (Figs. 11 and 12, not shown) and simultaneously to reset the integrator output to zero (Fig. 6, not shown, and Division G4).
Patent GB-955242-A (GB)
Title: Method of and apparatus for unbending and straightening wires in a coil
IPC: B21F1/02
Filed: 1962-10-30
Abstract: 955,242. Straightening; unwinding. SCHUMAG SCHUMACHER METALLWERKE G.m.b.H. Oct. 30, 1962 [Nov. 4, 1961], No. 41069/62. Heading B3E. Wire wound in a coil is straightened by gripping it near its end and drawing it over a peripherally grooved bending segment whose curvature is counter that of the wire. Wire is drawn from a reel 1 by a gripper 29 attached by a chain 28 to a draw lever 20 swung by a motor 22. The wire is drawn into a peripheral V- groove 3<SP>1</SP> of a fixed bending segment 3 of a curvature opposite that of the wire, the wire end thus being approximately straightened. The wire end now lies between stationary rollers 7, 9 and rollers 6, 8 and 10 on a movable member 27. A pressure cylinder 16<SP>1</SP> is then actuated to move, through links 16, 11, 12, 12<SP>1</SP>, the member 27 towards the rollers 7, 9. The rollers are then driven, by a motor 23, to feed the wire back towards the coil, to straighten the end of the wire. The drive is then reversed to draw all the wire through the straightening rollers. The bending segment 3 may comprise, Fig. 6, a number of rollers 4 with V-sectioned peripheral grooves on a carrier 19. The lever 20 may be driven by hydraulic means. The lever 20 may be rotatable. The reel may comprise a rotatable lower reel and a stationary upper reel.
Patent GB-1184156-A (GB)
Title: Process for Producing 2-Tthiouridylic Acid
IPC: C12P17/12
Filed: 1968-08-30
Abstract: 1,184,156. 2-Thiouridylic acid. KYOWA HAKKO KOGYO CO. Ltd. 30 Aug., 1968 [21 Sept., 1967], No. 41568/68. Heading C2C. 2-Thiouridylic acid is produced by culturing a 2-thiouridylic acid-producing-micro-organism belonging to a genus selected from Brevibacterium, Micrococcus, Arthrobacter and Corynebacterium under aerobic conditions in an aqueous nutrient medium containing 2-thiouracil or 2-thiouridine as an additive, e.g. in a concentration of from 0À5 to 10 mg./ml. and generally at a temperature of 20 to 40 C. and a pH of from 4À0 to 9À5, accumulating the 2- thiouridylic acid in the resultant cultured liquor and recovering the 2-thiouridylic acid therefrom, e.g. by means of an ion-exchange resin. Specified micro-organisms include strains of the species Brevibacterium ammoniagenes, Micrococcus sodonensis Corynebacterium mycetoides and Arthrobacter citreus.
Patent GB-1311949-A (GB)
Title: Pressurised dispensing containers
IPC: B65D83/14
Filed: 1970-08-28
Abstract: 1311949 Pressurized dispensing container SWISS ALUMINIUM Ltd 28 Aug 1970 [29 Aug 1969] 41585/70 Heading F1R A pressurized dispensing container comprises a cylindrical one piece body of aluminium or aluminium alloy of less than 0À4mm thickness connected to a spraying device 9 through a ring 4 secured to the body by a roll 16 accomodated within a neck in the body and a cap 6 of the same diameter as the body and held thereon by a projection 13 engaging over the roll. The cap 6 may be fast with the spraying device 9 or separate therefrom. The spraying device comprises a press button 14 and a nozzle 18 movable relative to the cap in an aperture 11, 12. The body is made by impact extrusion and stretching of a slug to reduce wall thickness to less than 0À4 mm and the body material is preferably an Al-Mn, Mg alloy (proportions specified).
Patent GB-1345496-A (GB)
Title: Discharge of quenched coke from a coke wharf
IPC: C10B41/04
Filed: 1972-09-07
Abstract: 1345496 Coke wharves/feeding conveyers HAMBURGER GASWERKE GmbH 7 Sept 1972 [15 Sept 1971] 41623/72 Addition to 1281654 Headings B8E B8A and B8S [Also in Division F4] A coke discharge machine 10 is movable along a coke wharf 1 on which batches of coke are stored for cooling, and has an actuator 16 for opening discharge gates 3 on the wharf to allow the coke to fall on to a conveyer 2, the machine carrying a thermal sensor 20 which, if the coke is too hot for discharge, deactuates the actuator 16 and causes water to be sprayed on to the coke. Each gate 3 is pivoted to the wharf 1 and has a member 7 which co-operates with an electromagnet 18 carried by the actuator 16. The machine 10 has wheels 11-13 running on rails secured to the wharf. A water trough 27  extends along the wharf and has a flexible slotted cover 28 through which projects a pipe 26 leading to a pump 25 and thence to a spray nozzle 23. A sensor 21 detects the presence of coke on the wharf to operate the actuator. During coke discharge, the gate adjacent the opened gate is oscillated to promote the flow of the coke on to the conveyer.
Patent GB-1334562-A (GB)
Title: Four speed ration planetary transmission
IPC: F16H3/66
Filed: 1971-09-07
Abstract: 1334562 Change-speed gear FORD MOTOR CO Ltd 7 Sept 1971 [17 Nov 1970] 41651/71 Heading F2D A two-train Simpson planetary gear set 16, 18 is preceded in series by a sun-ring train 14 having its ring gear connected to input 10 and its sun braked at 54 in all forward reduction ratios and reverse. Three clutches 58, 60, 62 and a one-way brake 48 with parallel band brake 46, are connected as shown, and the four forward and one reverse ratios are as follows. First (3À32), clutch 60, brake 54 and one-way brake 48, train 14 reducing, trains 16, 18 compounding; second (1À97), clutches 58, 60, brake 54, trains 14 and 16 alone in series, both reducing; third (1À35), clutches 60, 62, brake 54, train 14 reducing, 16, 18 locked up; fourth (1À00), clutches 58, 60, 62, all lock up; reverse (2À94), clutch 62, brakes 46, 54, train 14 reducing, rear train 18 alone reversing.
Patent GB-1468376-A (GB)
Title: Tool
IPC: B25B7/12
Filed: 1974-03-07
Abstract: 1468376 Riveting; stamping; bending REPAPRESS AG 7 March 1974 [9 March 1973] 41709/76 Divided out of 1468375 Headings B3E B3Q and B3U [Also in Divisions B4 and H2] A hand-held tool comprises a pair of pivotally connected lever members 161, 162, Fig. 7, end portions of which provide relatively movable jaws of the tool, resilient means acting between the lever members to urge the jaws to an open or inoperative position and a tubular element 163 disposed between the lever members the tubular element being selectively inflatable by pressure fluid to generate a force which acts through the lever members to move the jaws to a closed or operative position. The tool may be adapted to perform a variety of operations such as pinching, clamping, disconnecting, stripping, spreading, stamping, bending, lead-sealing, cutting, heading, punching and riveting. Fig. 4 shows an embodiment of the invention as applied to a blind riveting tool.
Patent GB-964753-A (GB)
Title: Hydroxy naphthyl derivatives
IPC: A23L3/3526
Filed: 1962-11-05
Abstract: The invention comprises compounds of the general formulae: <FORM:0964753/C1/1> <FORM:0964753/C1/2> wherein X is a -CN or -COOH radical and Y is a CN radical. The nitriles may be made by reacting b ,b 1-iminodipropionitrile with formaldehyde and a - or b -naphthol. The acid is obtained by hydrolysing the appropriate nitrile with a hydroxide base, such as potassium hydroxide or sodium hydroxide, and acidifying the resulting salt with an acid, preferably glacial acetic acid. Detailed examples are given. The compounds are used to stabilize fats and oils.ALSO:Edible fats and oils subject to oxidative deterioration are stabilized by, for example, 0.025 to 1.0% by weight of a compound of the general formulae <FORM:0964753/C4-C5/1> wherein X is a -CN or -COOH radical and Y is a -CN radical. The compounds may be used to stabilize lard, castor oil, corn oil, butter, beef tallow, linseed oil, rape seed oil, olive oil, palm oil, coconut oil and peanut oil.  Examples are given.
Patent GB-1442030-A (GB)
Title: Slitter disc mounted on an air bearing
IPC: B26D7/26
Filed: 1974-09-27
Abstract: 1442030 Cutting apparatus DOMTAR Ltd 27 Sept 1974 [1 Oct 1973] 42067/74 Heading B4B [Also in Division F2] A paper slitting apparatus comprises a slitter disc 12 mounted on a hub 14 which is rotatable on a shaft 28, means 36, 32, 34 for injecting air between the shaft and the hub so as to provide an air bearing therebetween, an anvil member 42, and means 80, 46 for biasing the hub in one axial direction on the shaft thereby to press the slitter disc into cutting relationship with the anvil member. The disc 12 is secured to the hub 14 by means of a locknut 18 and spacer 16 and is provided with a tungsten carbide coating 22 on its cutting edge. The shaft 28 is provided with ports 32, 34 through which the air is directed to the bearing surfaces, the air escaping therefrom via holes 84 formed in a flange 82; the ports 34 may be inclined such that the escaping air has a tendency to rotate the hub. The biasing force is provided by an air thrust bearing including a part 58 secured to an extension 44 of the shaft by means of a pivoted latch 52 and a part 60 which rotates with the hub via a spring 80. Air is fed via the port 32 and ports 48, 68 thereby applying pressure to the part 60 so as to cause the disc to engage the anvil 42. In a modification, Fig. 4, the hub 14 is formed with an extension 104 the end of which enters into a recess 108 provided in a member 110 secured to the stationary shaft 28. Air is fed via the port 32, and ports 112, 128 so as to act on the end surface 106 of the extension 104, thereby urging the slitter disc into contact with the anvil; the biasing pressure may be adjusted by a needle valve 122.
Patent GB-1107769-A (GB)
Title: A bar hinge
IPC: E05D3/02
Filed: 1965-10-04
Abstract: 1,107,769. Barrel hinges. HETTICH (GREAT BRITAIN) Ltd. 4 Oct., 1965 [6 Oct., 1964], No. 42100/65. Heading E2F. In the formation of the eyelet 6 for the hinge pin 7 the strip of metal 3 forming one half of the hinge is bent as shown at 9, Fig. 1, to ensure that the surface 11 of the strip remains on the outside of the eyelet. The eyelet extending from the strip 4 is bent in the same way. This construction enables the hinge to be made from a strip having a desirable surface finish on one side only since the opposite side is not visible when the hinge is secured in position. The surface that is visible may be coated with a metal, a plastic, varnish or lacquer, or may be coloured by "blueing".
Patent GB-877915-A (GB)
Title: Improvements in record punching devices
IPC: B26F1/04
Filed: 1958-12-31
Abstract: 877,915. Selective punching machines. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 31, 1958 [Dec. 31, 1957], No. 42257/58. Class 31 (2). A device for punching record cards in motion along a conveyer 12 comprises a pair of rotatable cylinders 3, 5 each carrying punches, e.g. 31, 33 or 32, 34, in radial bores 30, and magnets 26, 28 which are selectively energized to actuate the corresponding punches. The magnets are connected to commutators 19, 20 the brush contacts 15, 16 of which are displaced angularly relatively to each other so that the actuation of the associated punches occurs at different times. As a result, punches 31, 32, for example, produce perforations of complementary form which intersect to form a punched hole. The segments SU and SL of the commutators are connected to storage devices comprising condensers CU 1  to CU 12  and CL 1  to CL 12  which are connected to conductors L l  to L 12  through rectifiers RU 1  to RU 12  and RL l  to RL 12 . The magnets may be replaced by mechanical, pneumatic or hydraulic means.
Patent GB-1445664-A (GB)
Title: Core support system for fast reactors
IPC: G21C1/03
Filed: 1974-09-30
Abstract: 1445664 Nuclear reactor core supports COMMISSARIAT A L'ENERGIE ATOMIQUE 30 Sept 1974 [9 Oct 1973] 42395/74 Heading G6C In a liquid-sodium-cooled fast reactor the core support grid 20 is supported by face 23 on an annular diagrid 24 and liquid sodium admission pipes are each connected to the support grid via an expansion seal, e.g. 36. Grids at 44 are rigid fixed to the core support grid for enhanced rigidity thereof. Demounting of the support grid entails only the cutting of the sodium admission pipes along section AA. A catchpot 28 for nuclear debris is rigidly fixed to the core support grid or to the diagrid, and is formed with juxtaposed annular L-section members to distribute the debris uniformally over the bottom of the catchpot.
Patent GB-1222048-A (GB)
Title: Improvements in or relating to bearings and bearing liners
Inventor: BUNGARDT WALTER
IPC: C22C11/00
Filed: 1969-08-27
Abstract: 1,222,048. Bearing alloys. TH GOLDSCHMIDT A.G. Aug.27, 1969 [Sept.2, 1968], No.42631/69 Heading C7A. An alloy consisting, by weight, of: - Sn 0‹5 - 5% Sb 2‹3 - 4.5% As 0À1 - 0.5% Pb remainder (apart from any impurities) is used to form the surface of a bearing or a bearing liner.
Patent GB-902970-A (GB)
Title: Improvements relating to voltage control apparatus
Inventor: SPURWAY MAURICE ALEC
IPC: H01F29/02
Filed: 1959-12-16
Abstract: 902,970. Transformers. FERRANTI Ltd. Dec. 13, 1960 [Dec. 16, 1959], No. 42798/59. Class 38 (2). Voltage control apparatus includes a transformer, with primary and secondary windings, one of which windings comprises two equal sections each with a like plurality of tappings and each wound such that at all times corresponding parts of each section produce equal leakage flux with respect to the other winding, and control means for inter-connecting corresponding parts of each section in series parallel combination. Figs. 1A and 1C show the two sections 21, 22 in parallel and in series respectively. The conductor cross-section is made proportional to the maximum current which that part of the section carries. In the arrangement shown in Figs. 2A, 2B, the control range is increased by additional equal sections 26, 27. Fig. 4 shows a complete arrangement for " stepless " on-load tap changing with the taps of section 21 connected alternately to the fixed contacts of rotary switches 28, 29 and the taps of section 22 similarly connected to rotary switches 30, 31. The fixed contacts of each pair of rotary switches are connected through further switches, e.g. 33, 37, to ends of a pair of variable impedances, e.g. 34, 38, comprising the fixed coils of a moving coil regulator 35, the other ends of said impedances being connected together and to an end of the other section. The arrangement may be multiphase. Alternative control means include four saturable reactors in place of the moving coil regulators.
Patent GB-1248830-A (GB)
Title: Improvements in or relating to error correction in coded messages
IPC: H04L1/00
Filed: 1969-08-28
Abstract: 1,248,830. Error correcting arrangement. CODEX CORP. 28 Aug., 1969 [4 Sept., 1968], No. 42880/69. Heading G4A. There is provided an encoder and a decoder by which burst errors in a channel can be corrected. In Fig. 1, information bits at the encoder are divided (at least notionally) into streams I 1 , I 2 , I 3  and a combination line 20, which includes delay units, forms a stream of parity bits P. To detect error bursts extending over X or fewer time intervals, where a time interval includes a digit from each of streams I 1 , I 2 , I 3 , P, each bit of streams I 1 , I 2 , I 3  forms part of two separate parity bits, each separated by at least X time intervals but not more than 2X intervals, the separation for each stream being different. For example, at time 4X+2, the parity bit P equals I<SP>3</SP> 2x  (since there are 2X + 2 delay units from one line 14 to the righthand end of Fig. 1) plus I<SP>3</SP> x  (the other line 14) plus Io<SP>2</SP> (the first line 12). The parity bits are separated by at least X time intervals from the appropriate information bit and the individual terms of each parity digit are added by modulo 2 adders 24 to 30. In the decoder (Fig. 2) the streams are fed to lines 30, 32, 34 which include delay units and thence by various tappings to a modulo 2 adder 36 which receives the parity bit. The delays in lines 30, 32, 34 are such that the parity bit received at P is effectively recalculated and compared. If there was an error a signal goes to one or more of AND gates 62, 80 and 100 which send a correction signal to the appropriate lines by way of modulo 2 adders 70, 90, 110. This may be used on a telephone line. (For Figures see next page.)
Patent GB-1277916-A (GB)
Title: Magnetic memory with two storage elements per bit of information
IPC: G11C11/06
Filed: 1969-08-29
Abstract: 1277916 Magnetic storage arrangements RCA CORPORATION 29 Aug 1969 [6 Sept 1968] 43070/69 Heading H3B The description is the same as in Specification 1277917 but the claims are directed solely to the two core per bit embodiment of Fig. 5.
Patent GB-1439504-A (GB)
Title: Hydraulic or pneumatic device
IPC: F15B15/22
Filed: 1973-09-14
Abstract: 1439504 Reciprocating pumps and motors HANY & CIE 14 Sept 1973 [18 Sept 1972] 43188/73 Headings F1A F1M and F1N In an hydraulic or pneumatic pump or motor comprising a double-acting piston 1 reciprocable in a cylinder 11, resiliently biased abutment members 2 cushion the piston movement at the end of each stroke and control a changeover valve controlling the inlet and outlet connections to the cylinder. Members 2 comprise slide valves with peripheral grooves 7, 9 connecting a changeover valve supply port 5 either to pressure or exhaust, Figs. 2 and 3 (not shown). Pins 10 prevent rotation of members 2 which are biased by springs 8. The members 2 have cutaways 31 adjacent the cylinder inlet/outlet ports 17. In Figs. 4 and 5 (not shown), hydraulic damping of the movement of each member 2 is provided by connecting the spring chamber to the cylinder via a throttle or a restricted clearance between the member 2 and its housing.
Patent GB-1038908-A (GB)
Title: Insect chemosterilant
IPC: A01N25/00
Filed: 1964-10-27
Abstract: A chemosterilant composition for insects comprises a feed-bait and a chemosterilant which is hiphenyltin hydroxide or a hiphenyltin ester in a concentration sufficient to effect sterilazation of the insects and insufficient to effect a mortality rate greater than 70% of the insects treated.  The composition may be fed to the insect in the form of a solid or liquid.