baber/WOPTO huggingface dataset:
Patent GB-926732-A (GB)
Title: Improved means for treating soil with steam or other fluid
IPC: A01G11/00
Filed: 1958-10-14
Abstract: 926,732. Treating soil. J. BEVERIDGE. Oct. 14, 1959 [Oct. 14, 1958], No. 32822/58. Class 6(2). [Also in Group XXVIII] A device for treating soil with steam or other fluid comprises a wheeled container 1 provided with a removable lid 3 and with a perforated pipe 4 on the ends of which stub axles are secured for mounting the wheels 6. One end of the pipe 4 is closed, and the other is in communication with a hollow connector 12 (see Group XXVIII) provided with a branch 26 to which, for example, a steam supply hose is connected. Tie members 7, connected at their lower ends to the pipe 4 extend through slots 15 in the cover when the latter is sealed on the container, the cover being held securely in place by wedges 19 driven into slots 17 at the upper ends of the tie members. The cover may be reinforced at 18 to withstand the pressure of the wedge action. Outlets 9 and 16 are provided in the container and cover respectively. The frame 10, 11 serves to support the container in either the upright or inverted position, and the member 11 also functions as a handle.
Patent GB-900646-A (GB)
Title: Improvements in and relating to measuring systems
IPC: G01N23/08
Filed: 1958-10-14
Abstract: 900,646. Measuring density by radiation. INDUSTRIAL NUCLEONICS CORPORATION. Oct. 14, 1958 [Dec. 12, 1957], No. 32835/58. Class 40 (3). In apparatus for measuring the density of an object such as a cigarette rod 10 by passing a beam of radiation from a radio-active source 20 through an aperture 90 in a block 60 through which the rod passes, and receiving it on a detector 30, spurious signals caused by movement of the rod upwards are eliminated by an absorbing block 50 with a reflecting top surface positioned in the radiation path. The arrangement is that if the rod lifts radiation passing beneath the rod is intercepted by the block radiation passing through the rod and reaching the detector is reduced because of the increased width of cigarette in the radiation path through region c while the radiation reflected on to the detector from top surface e is increased, maintaining the detector output substantially constant.
Patent GB-265930-A (GB)
Title: Vulcanization of rubber substances and products obtained therefrom
IPC: C08L61/22
Filed: 1926-12-29
Abstract: 265,930. Grasselli Chemical Co., (Assignees of Burnett, W. B., and Williams, I.). Feb. 12, 1926, [Convention date]. Addition to 249,113. Vulcanizing-compositions. - An accelerator of vulcanization consists of the condensation product of one molecule of a primary amine and two or more molecules of an a, # saturated aldehyde, the condensation being effected in the presence of an acid condensing agent. Suitable amines are aniline, n-butylamine, and o-tolyl-guanide. Specified aldehydes are n-butyraldehyde, heptaldehyde, and propionaldehyde, the most suitable proportions being 2-7 molecules to each molecule of amine. Weak organic acids are preferred as the condensing agent; acetic, propionic, n-butyric, stearic, oleic, salicyclic, and picric acids being mentioned, but other acids such as hydrochloric, phosphoric, or sulphuric, or salts such as zinc chloride, amine salts, or substances such as acid anhydrides, acid halides, which become acid under the conditions of the condensation may also be employed. The amount of acid employed is generally between 0.05, and 0.30 molecules per molecule of amine. These accelerators are particularly useful in the vulcanization of mixes containing gas black, and they are not operative at temperatures below 100‹ C., and they have a wide curing range. Several examples are given in the Specification. Specifications 249,113 and 263,853 are referred to.
Patent GB-522476-A (GB)
Title: Improvements in or relating to variable capacity arrangements
IPC: H03J7/04
Filed: 1938-11-12
Abstract: 522,476. Variable condensers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., RUST, N. M., BRAILSFORD, J. D., OLIVER, A. L., and RAMSAY, J. F. Nov. 12, 1938, No. 32977. [Class 37] A condenser comprises two electrodes MF<1>, MF<11> each cemented on the outer flat surface of one of two plates AS<1>, AS<11> of semi-conductive material, such as agate, the other surfaces of which are perfect by plane and in contact at PS. A variation in the capacity existing between the plates is effected by subjecting the plates to a variable potential.
Patent GB-1056275-A (GB)
Title: Improvements in or relating to the inspection of surfaces
Inventor: BARRINGER BRIAN WILFRED
IPC: G01B7/28
Filed: 1962-08-28
Abstract: 1,056,275. Measuring surface profiles electrically. RANK ORGANISATION Ltd. Aug. 13, 1963 [Aug.28, 1962], No.32987/62. Heading G1N. The surface profile of a rotated workpiece 18, Fig.1 (not shown), to be compared with a reference circle or ellipse, is measured by a feeler 19, and recorded on a rotating chart 21, by a pen 23, the reference shape, also drawn on the chart 21, being obtained by summing the terms, a 0  + a 1  sin # + b 1  cos # + a 2  sin 2# + b 2  cos 2# for an ellipse, and the first three terms thereof for a circle, each constant being evaluated from the feeler output signal by an electrical integration. For example, a 0  is the integral over one revolution of f(#)d#, and a 1  is the integral of f(#). sin #. d#, &c., where f(#) is the output of the feeler. The constants a 0 , a 1 , b 1 , a 2 , b 2  are derived and stored in circuits 8, 29, 31, 34 and 36, Fig.4 (not shown) respectively, where 27 is a sine potentiometer, and 32 a cosine potentiometer both rotating at chart speed, and 33 and 38 are sine and cosine potentiometers respectively both rotating at twice this speed. In the first position of a switch S, the control circuits are adjusted. In the second position of the switch S, a profile curve for an elliptical workpiece is drawn, 22, during the first revolution of the workpiece and the constants also generated and stored; and during the second revolution, the reference curve is obtained by summing the signals from the resistors R representing the constants combined with their respective sine and cosine terms. In the third position of S, a similar process provides for a circular plot. In either of the second or third positions of S, circuits 40, 41, 42 may register the peak departures of the profile curve from the reference curve. In the fourth position a correction system for eccentricity of the workpiece is available when plotting circular profile and reference curves. This consists of subtracting from f(#), the sine and cosine terms by reversing their phase at 27, thus leaving the a 0  term and the harmonics representing the profile. The radius a 0  of the plotted circle may be adjusted by subtracting the a 0  signal obtained from integrator 8, and adding a preset voltage from source 44. Reference has been directed by the Comptroller to Specification 861, 323, and 950, 312.
Patent GB-1471384-A (GB)
Title: Facsimile apparatus
IPC: H04L27/14
Filed: 1974-07-26
Abstract: 1471384 Copying by scanning EXXON RESEARCH & ENG CO 26 July 1974 33047/74 Heading H4F Frequency-modulated signals representative of a scanned original are demodulated by a phase-locked loop having a voltage controlled oscillator 324 and a phase detector which may be a balanced modulator 326; the phase-locked loop inherently doubles (or triples or quadruples) the fundamental frequencies of the frequencymodulated signals, these multiplied frequencies being removed by a filter 328. The signals derived from a scanned original may be fed to a voltage controlled oscillator 304, block signals being transmitted as a signal of frequency 2400 Hz and white signals as a signal of frequency 1500 Hz, filter 328 removing frequencies in the range 3000-4800 Hz. A transceiver (Fig. 3, not shown) may use one voltage-controlled oscillator instead of two separate oscillators 304 and 324, switches being provided at the input and output of the oscillator to correctly connect it for use in a transmitting mode or a receiving mode.
Patent GB-748880-A (GB)
Title: Improvements in or relating to the production of solid non-ionic surface active agents
IPC: C11D11/00
Filed: 1952-12-31
Abstract: A liquid non-ionic surface-active agent comprising a compound having in the molecule a chain of condensed ethylene oxide groups and containing coloured impurities is converted into a solid form of improved colour by contacting the liquid surface-active agent with sulphur dioxide and thereafter mixing the treated agent with an excess by weight of solid urea in the presence of a reaction diluent and as a reaction activator, a compound which has a solvent action on urea, maintaining the mixture until urea adduct formation has taken place and separating the solid adduct product. The urea employed may contain biuret.  The term "reaction diluent" denotes a liquid hydrocarbon which does not form a urea adduct or a mixture of liquid hydrocarbons containing only a small proportion of hydrocarbon which forms urea adducts at the reaction temperature, the diluent being a non-solvent for urea and the liquid surface-active agent, e.g. n- and iso-pentanes and hexanes, cyclopentane, cyclohexane and 40-150 DEG C. petroleum ethers. Reaction activators include water, a C1-3 alcohol, glycerol and ketones such as acetone and methyl ethyl ketone.  The liquid surfaceactive agents specifically mentioned and the general conditions of the adduct-formation are as set forth in the parent Specification.  A preferred class of surface-active agent is that described in Specification 748,881.  In an example, "Lissapol NXA" (Registered Trade Mark) is saturated at 40 DEG  C. with gaseous sulphur dioxide and is then mixed with n-pentane and methanol and reacted with solid urea; the adduct is filtered off and freed from residual solvent.  The product is a light coloured freeflowing powder and without the treatment with sulphur dioxide would have been tacky and darkly coloured.  According to the Provisional Specification, any liquid non-ionic surface-active agent may be treated with sulphur dioxide and then reacted with urea whereby a solid surfaceactive agent is formed.
Patent GB-618503-A (GB)
Title: Improvements in or relating to cable-carrying drums
IPC: B65H49/32
Filed: 1945-12-07
Abstract: 618,503. Cable drums. LIMMER, G. H., and FOREMAN, T. B. Dec. 7, 1945, No. 33089. [Class 99 (ii)] The hub 24 of a cable drum 26 is mounted by ball or roller bearings on the spindle of a pair of discs or wheels 20 which have means for locking them to the drum. The drum has detachable cover-plates 37, a detachable drawbar 50, and a sleeve 59 and an eye 67 for attaching the inner and outer ends of the cable. A brake band 45, Fig. 12, acting on the hub 24 is actuated by a lever 40 pivoted on one of the discs. A locking catch 47 on the lever engages a notch 48 in the hub. In a modification, the wheels 29, Fig. 8, are connected by a central spindle 30 and a number of rods 31 each carrying by ball or roller bearings 33 a roller 32 which engages the interior of the drum 34.
Patent GB-1104500-A (GB)
Title: A method of reducing the cross-section of titanium or titanium-base alloy wire
IPC: B21B45/00
Filed: 1966-07-22
Abstract: 1,104,500. Rolling; making wire. CONTINENTAL TITANIUM METALS CORPORATION G.m.b.H. 22 July, 1966 [26 July, 1965], No. 33109/66. Headings B3A and B3M. Wire of commercial pure titanium, or of an alpha or alpha-beta type titanium base alloy, which has been hot-worked at a temperature below its beta transes temperature is rapidly heated and cooled during a total period of not greater than 1 minute, and is then reduced in cross-section by cold rolling the wire between a set of rolls 18 whose grooves 20 co-operate to form a circular pass. The wire is heated to a temperature preferably not more than 50‹ F. above its beta transes temperature. In the case of pure titanium wire, the total time for heating and for holding the wire at that temperature can take one hour. The wire, after uncoiling, is fed through a heater 6 where it is resistance heated using rollers 8 and 10, or is alternatively heated inductively. An air blast 14 cools the wire, and a bull block 22 finally pulls the wire through a set of rolls 18, or preferably two such sets in tandem.
Patent GB-443124-A (GB)
Title: Improvements in or relating to liquid fuel admission devices for internal-combustionengines
IPC: F02M57/02
Filed: 1934-11-17
Abstract: 443,124. Fuel injectors ; valve gear. AMERY, G., 3, Greville Road, Kilburn, London. Nov. 17, 1934, No. 33123. [Classes 7 (iii) and 7 (vi)] A fuel-injection valve which is opened by the fuel pressure is also closed by admitting the fuel pressure to a piston on the valve while the injection pressure is still maintained. Fig. 1 shows a fuel pump 12 which draws in fuel at 18 and delivers it through a passage 19 to act upon a shoulder 25 on the injection valve 23, thereby opening the valve against the action of an adjustable spring 29 by an amount limited by a stop 31. The valve is also formed with a piston 26, the righthand side of which is connected by a passage 49, 48 to a valve 40 actuated by a cam 43 so that, during injection, the passage 48 is connected to an atmospheric port 50, but when the injection is to be ended, the passage 48 is connected to a passage 47 leading to the pump, so that fuel pressure is conveyed to the piston 26 to close the injection valve. The timing of the valve 40 is varied by an inclined slot and pin connection between the shaft 16 actuating the pump and the gearing 44, 45 driving the cam 43. A pressure-relief valve is fitted at 35. Fig. 3 shows a modified form of injection valve 76 the head 90 of which is acted upon by a closing-spring 78 and also by the fuel pressure, as this is admitted at 80 by the valve 40. The injection valve is formed with a cylindrical extension 79 which almost fills the nozzle aperture 89 forming the termination of a slightly wider passage 81. The pressure-relief valve is fitted at 82, and stops limiting the opening are provided at 96 and 97. The fuel pump may supply several injection valves, and the camoperated valves which control the closing operation may be simultaneously adjusted as to their timing by axially-movable helical gears driving the valve cams. These cams are composed of two parts adjustable angularly with relation to each other. Specification 442,532 also is referred to.
Patent GB-735332-A (GB)
Title: Improvements in or relating to cylinder heads for internal combustion engines
IPC: F01L7/02
Filed: 1953-03-31
Abstract: 735,332. Cylinders; valves. BOORER, A. May 20, 1954 [March 31, 1953], No. 33131/52. Classes 7(2) and 7(6). A chamber 12 containing rotary cylindrical inlet and exhaust valves 15, 21 communicates via valve-controlled ports 25 with cylinder-head combustion chamber compartments 27 which may have spark plugs 32 or be interconnected by a curved passage (not shown) having a spark plug midway therealong. As shown, the compartments 27 are two in number and circular in plan.
Patent GB-1428487-A (GB)
Title: Gas control systems
IPC: F23N5/06
Filed: 1973-07-12
Abstract: 1428487 Valves CONCENTRIC CONTROLS Ltd 27 Sept 1974 [12 July 1973] 33203/73 Heading F2V ]Also in Division F4] A valve for controlling gas supply to burners comprises a flame-failure valve 27, with a resilient seating 42, controlled by an expansion device 23 connected to a mercury phial heated by a burner under the control of a valve 20, a main burner control valve 33, a delay valve 32 operated by the flame-failure valve 27 and second and third burner control valves 34, 35. The flame-failure valve has a variable by-pass, Fig. 4 (not shown). The operating shafts for the valves 20, 33, 34, 35 are sealed by a diaphragm 58. Each shaft is operated by a push button and lever arrangement having locking and interlocking facilities, Figs. 5, 6 (not shown).
Patent GB-651248-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02C5/04
Filed: 1948-12-29
Abstract: 651,248. Gas turbines. WALOSZEK, F. Dec. 29, 1948, Nos. 33399 and 33400. Convention dates, Dec. 31, 1947 and Dec. 23, 1948. [Class 110(iii)] A turbine rotor with pockets 2 rotates within a casing having an inlet 3 and an exhaust 4. Combustible mixture is compressed by a centrifugal pump on the turbine shaft and delivered to the rotor pockets 2 at 3. The mixture is fired by a sparking plug 5 and burns up to the exhaust 4. The casing from the plug 5 to the exhaust has a jacket 10 through which air is forced by a second pump. The plug 5 is needed only for starting. The tips of the rotor pockets may run close to the casing or may be separated from the casing over the region 5, 4 by a small distance which decreases towards 4.
Patent GB-863711-A (GB)
Title: Process for purifying crude benzene
IPC: C10G67/02
Filed: 1957-10-25
Abstract: Crude benzene prior to being refined by treatment in the vapour phase with hydrogen over an oxide or sulphide of an element of Group 5, 6 or 8 at elevated temperature and pressure, is washed with water, preferably an amount of 2-15% by weight of the crude benzene before being compressed and heated.  After washing the benzene is stored in the presence of hydrogen for 1/2 -2 hours at 20-200 atmospheres and 180-300 DEG  C. to polymerise unsaturated impurities.  The vaporisable material is then vapourised and more hydrogen added while high-boiling residues are rejected and the vapour-hydrogen mixture is heated to about 340 DEG C. and passed over the catalyst which may be disposed on a carrier, such as molybdic acid-zinc oxide or molybdic acidalumina.  The product is cooled, the gases separated and recycled and the liquid product alkali and water washed.
Patent GB-380658-A (GB)
Title: Improvements in or relating to electric power switches
IPC: H01H33/70
Filed: 1931-12-02
Abstract: 380,658. High-tension switches. SIEMENS-SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. Dec. 2, 1931, No. 33453. Convention date, Dec. 9, 1930. Addition to 379,804. [Class 38 (v).] In an " expansion " switch wherein the pressure developed by the arc in the expansion chamber is conserved until it is adequate to lift the cover, of the chamber and thereby open a large peripheral passage to permit of rapid expansion as in the parent Specification, additional means are employed to ensure that the cover remains raised at the zero of the A.C. cycle notwithstanding the sudden reduction of pressure. In the arrangement shown in the Figure, the cover 34 of the expansion chamber 33 carries with it (when adequate pressure has been developed) a piston 40 working in the outer condensation chamber and connected to the cover by guided pins 35 on which springs 42 are arranged. The pistons have valves 45, 46 which open to allow free upward movement but close to retard return movement of the piston thereby ensuring that the cover is held raised from the expansion chamber during the zero passage. In a modification, the walls of the chamber are made of magnetic material and surrounded by a coil carrying the main current. The cover is provided with magnetic insets so that it is held down electromagnetically until just before the zero of the A.C. cycle when the pressure developed forces it against the action of springs into the raised position at the zero of the A.C. cycle.
Patent GB-1270808-A (GB)
Title: Transmission link
Inventor: MINNS GEORGE ERIC
IPC: H04B14/08
Filed: 1968-07-12
Abstract: 1,270,808 Pulse modulation circuits DEWHURST & PARTNER Ltd. 14 July, 1969 [12 July, 1968], No. 33481/68. Heading H4L. [Also in Division G4] Conditions or commands are transmitted as frequency modulation of a carrier signal by a selected one of 2 complementary periodic primary pulse signals A with or without frequency modulation of the primary signals by a selected one of 2 complementary periodic secondary pulse signals B. The carrier signal may also be frequency modulated by speech signals.  Transmitter.-The secondary signals comprise a train of pulses with an unequal e.g. 4:1 mark space ratio produced by multivibrator Q1<SP>1</SP>, Q2<SP>1</SP>, Fig. 2A, the 4:1 or 1:4 ratio or neither being selected by a switch 22 and applied as a frequency modulation input to a similar arrangement generating the primary signals which have a higher frequency and comprising multivibrator Q6<SP>1</SP>, Q7<SP>1</SP> and selector switch 21. The output selected from Q8<SP>1</SP>, Q9<SP>1</SP> is applied as a frequency modulating signal to a multivibrator Q12<SP>1</SP>, Q13<SP>1</SP>, Fig. 2B, operating at the carrier frequency and the output of which is applied to a line 10 via transformer T1<SP>1</SP> and inductive coupling 19, 20. Multivibrator Q6<SP>1</SP>, Q7<SP>1</SP> is synchronized to the carrier via C5<SP>1</SP> and multivibrator Q1<SP>1</SP>, Q2<SP>1</SP> is synchronized to the primary pulses via C13<SP>1</SP>. Recewer.-Inductive coupling 31 and preamplifier 33, Fig. 4A, supply amplifying stages Q1, Q2 and inverter Q3. At the start of each cycle, capacitor C5 is discharged by Q4 and then charges over R12, R13 until the output polarity of Q2 changes and Q5 is turned on to by-pass the charging current. At the same time the charge on C5 is transferred to C8 via Q6-Q8. The voltage across C8 follows the frequency variation of the carrier signal and is applied to a phase splitter Q10, Fig. 4B, which switches a bi-stable circuit Q11, Q12 having outputs connected to a switching stage, Fig. 4C (not shown), controlling motor-energizing relays according to the detected mark-space ratio. The switching stage makes use of the fact that higher amplitude pulses are generated in the short "half" cycles to suppress application of the short pulses to the relays and thereby prevent chatter. Outputs are also supplied from the switching-stage to circuits similar to those of Figs. 4A-4C for detecting the B pulse signals and controlling further relays which determine the direction of movement of the motors.
Patent GB-901731-A (GB)
Title: Improvements in and relating to the continuous production of chip boards
IPC: B27N3/18
Filed: 1960-09-30
Abstract: <PICT:0901731/IV(a)/1> <PICT:0901731/IV(a)/2> In cutting (Figs. 3 and 4) sections 6 of equal length from a continuously formed fleece of a mixture of binder with fragments of a cellulosic material such as wood, bamboo or reeds and conveying the sections successively to a press for conversion to chip boards, the fleece is deposited on a succession of overlapping metal plates 5, each longer than the section to be cut, overlap of plates is maintained until the fleece is cut (by a band saw 7), and thereupon the metal plate leading in the operational direction (arrow 4) is taken forward at a greater speed to remove overlap with the plate following.
Patent GB-1135848-A (GB)
Title: Iron ore reduction
IPC: C21B13/00
Filed: 1966-07-26
Abstract: 1,135,848. Reducing iron ores. ESSO RESEARCH & ENG. CO. 26 July, 1966 [2 Sept., 1965], No. 33631/66. Heading C1A. [Also in Division C7]  Oxidic Fe ore is fluidized in contact with burning fuel in an oxidizing atmosphere to oxidize any S in the ore or fuel to SO 2 , and then reduced in a series of fluidized beds or zones to Fe 3 O 4 , FeO, and finally Fe. The ore, e.g. haematite, may be ground to 65-325 mesh and fed to the top of a reactor having a series of distinct fluidized beds. Hydrocarbon fuel and excess air are fed to the upper zone, and reducing gases, e.g. H 2  and/or CO, to the remaining zones. A portion of the gases withdrawn from the top reducing zone, e.g. up to 20%, may be burnt with the fuel in the oxidizing zone, and the balance may be treated to remove CO 2  and H 2 O, and then recycled to the bottom reducing zone. Temperatures in the zones may be 1000-1600‹ F. (oxidizing), 1000-1800‹ F. (reducing to Fe 3 O 4  and FeO), and not above 1600‹ F. (reducing to Fe) respectively. The final product contains 85-95% Fe.