baber/WOPTO huggingface dataset:
Patent GB-655107-A (GB)
Title: Improvements in covers and latching assemblies for containers and particularly for vacuum cleaners
IPC: A47L5/36
Filed: 1948-11-23
Abstract: 655,107. Multiple fastenings. ELECTROLUX, Ltd. (Aktiebolaget Elektrolux). Nov. 23,1948, No. 30379. [Class 44] A latching device for the closure member of a casing, for example, the dust receptacle of a vacuum cleaner, comprises a plate 29, Figs. 2 and 3, secured to and extending across the closure member 30 and provided with a pair of ears 28 projecting outwardly from the plate, a cam member 31 pivotally mounted between the ears and having an arcuate surface formed with a pair of diverging cam slots 32, a pair of latch bars 34 mounted on the plate, each bar having at its inner end an angularly disposed member 33, Fig. 5, engaging in one of the slots 32, and a handle 25, Fig. 3, connected to the cam member. The casing 10, within which is mounted a motor and fan, encloses a dust bag 13, and has a removable front cover 14, the usual flexible nose being connected to the cover. The dust bag is secured to a flanged ring 18, Fig. 4, by binding thread, the flange having a rubber gasket which seats on the casing and on the cover 14. The outer ends of the latch bars 34 engage with keeper members 35 which extend forwardly from the casing, as shown in Fig. 4.
Patent GB-891115-A (GB)
Title: Reinforcement plies for rubber tyres
IPC: B60C9/00
Filed: 1960-09-02
Abstract: 891,115. Yarns and threads. ZIMMER, H. J., [trading as ZIMMER VERFAHRENSTECHNIK, HANS J.]. Sept. 2, 1960 [Jan. 30, 1960], No. 30410/60. Class 120(3) [Also in Group XXXIV] Cords for pneumatic tyre reinforcing fabric comprise linear polypropylene filaments which have been pre-treated by hot or cold drawing, the drawn staple fibre yarns, or monofilaments being twisted into cords and subsequently, redrawn. The filaments may comprise a mixed polymerizate of 80% polypropylene and 20% other olefinic material and may include a heat stabilizer. The filaments or yarns, or the completed cord, may be thermofixed at a temperature of 100‹ to 130‹C. In a particular example, hot drawn, thermofixed polypropylene thread having 125 strands and a total titer of 750 denier is subjected to a Z-twist of 400 r.p.m. and then twisted with a similar thread to impart an S-twist at 420 r.p.m.
Patent GB-1385947-A (GB)
Title: Acrylonitrile copolymers
IPC: C08F271/02
Filed: 1972-06-29
Abstract: 1385947 Graft copolymers BAYER AG 29 June 1972 [29 June 1971] 30425/72 Heading C3G A graft copolymer comprises as substrate a copolymer of N-vinyl pyrrolidone and vinyl acetate and as superstrate a copolymer of vinyl bromide and acrylonitrile. It is prepared in an aqueous medium and may be processed into filaments or fibres and added to other acrylic polymers.
Patent GB-856919-A (GB)
Title: Equipment for the suctioning-off of gases and vapour in microwave cookers
IPC: F24C15/20
Filed: 1959-09-07
Abstract: 856,919. Cooking stoves. MIWAG MIKROWELLEN A.G. Sept. 7, 1959 [Sept. 11, 1958], No. 30435/59. Class 126. Means for exhausting gases and vapours from a microwave cooker are characterised in that the motor 3 actuating the suction fan which may be a fan 5, is fitted outside the path of the gases and vapours and that the housing 1 for the fan is secured to the cooking chamber 8 by means of a hose 9 of vibration deadening material through which the gases are evacuated. The hose which may be metal sheathed is connected to a pipe 7 on the chamber 8, both hose and pipe being so dimensioned that the high frequency energy is unable to pass through as a hollow conductor wave. The housing 1 has similar pipe connections 6 and an outlet 11 for condensates.
Patent GB-893040-A (GB)
Title: Apparatus for contacting a gas or vapor with a liquid, or two immiscible liquids of different density
IPC: B01D3/16
Filed: 1959-09-07
Abstract: 893,040. Contact apparatus. KOCH ENGIN EERING CO. Inc. Sept. 7, 1959, No. 30472/59. Class 55 (2). Apparatus for contacting a gas and a liquid or two immiscible liquids of different density has a series of superposed trays in a column, each tray having a liquid downcomer as shown and openings 38 for the upward passage of the lighter fluid, some of the openings being provided with valves 30 which are opened by the pressure of the lighter fluid below the tray and the number of openings with valves being such that when the valves are fully opened between 15 and 60% preferably between 30 and 50% of the lighter fluid passes through the openings without valves. The valves are of the type described in Specification 803,711, and the valved and unvalved openings are preferably arranged in a geometric pattern to secure even distribution of the lighter fluid over the entire tray. Thus, e.g. the valved and unvalved openings may alternate in parallel rows or there may be alternate parallel rows of valved and unvalved openings.
Patent GB-705592-A (GB)
Title: Method and apparatus for regenerating used mineral or vegetable oil
IPC: C10M175/00
Filed: 1950-12-13
Abstract: Mineral or vegetable oil, which has been used for lubricating, insulating, quenching or grinding, is regenerated by treating it with sulphur trioxide or oleum, to absorb water therefrom and to polymerize and precipitate impurities therefrom, and then filtering it through fuller's earth.  If desired, the filtration may be carried out under increased pressure.  The oil may be subjected, if desired, to a preliminary treatment with a bleaching agent in powder form, for example a bleaching agent sold under the Trade Names "Floridin," "Florisil" or "Bensil."
Patent GB-1175856-A (GB)
Title: Improvements in or relating to a fluid flow control valve
IPC: F16K31/50
Filed: 1967-07-03
Abstract: 1,175,856. Valves. AUTOMOBILES PEUGEOT. 3 July, 1967 [3 Aug., 1966], No. 30528/67. Heading F2V. [Also in Division G3] Supply and exhaust of pressure fluid to and from a jack V are controlled by a valve device comprising an axially fixed screw 13 and movable nut 12 which constitute valve members seating coaxially on a piston seat 8. Movement of the nut, by operating a lever 23, in the direction to lift the seat 8, places the jack in communication with an inlet 5 through seat orifice 10, a recess 15 and passage 19 in the nut, and a chamber 20. The reverse movement closes orifice 10 and opens communication to exhaust 7 through recess 15 opening of an annular closure face 14 on the nut, and annular passage 16. In another embodiment, Figs. 2 and 3 (not shown), the device is applied to a " follow-up " arrangement for correspondence control between an actuating member and the jack (see Division G3).
Patent GB-1160071-A (GB)
Title: Gauge Control System providing Improved Gauge Accuracy in a Reduction Rolling Mill
IPC: G05D5/03
Filed: 1966-08-07
Abstract: 1,160,071. Automatic control of rolling mills. WESTINGHOUSE ELECTRIC CORP. Aug. 7, 1966 [Aug.31, 1965], No.30566/66. Heading G3R. In a control system for a multi-stand rolling mill, thickness error detected at the delivery end of the mill is corrected by automatically controlling the roll gap at at least two roll stands, the amount of slower correction at the earlier stand undergoing a change when the error exceeds a predetermined value. As applied to a six roll stand hot strip steel rolling mill, Fig. 2, signals from a radiation gauge 38, representing errors in the thickness of strip emerging from the final stand S 6  (not shown), are periodically sampled by an adjustable timing switch 106 and applied, through an integrating transistor amplifier 112 and switches 114, to correct the thickness by controlling the screwdown of the rolls at the fourth, fifth and sixth stands. Control of the fifth stand is shown in detail and takes place through a summing amplifier 66 the output of which, if it exceeds a value sufficient to operate a relay 100, operates a controller 34, e.g. a generator or thyristor, for screwdown motors 22 at the fifth stand S 5 . Screwdown is stabilized by feedback from a load cell 46 associated with back-up rolls 20 and feedback from a tachometer generator 83 associated with motor 22. The first feedback is applied through a filter 54 and compared in an amplifier 58 with an initial load signal stored in an amplifier 62, so that a change of load signal is applied through a potentiometer 70 to amplifier 66. The second feedback is integrated by an amplifier 86 so that a change of screwdown position signal is applied through a potentiometer 94 to amplifier 66. A signal from a load cell associated with the final stand S 6  is added at 142 to control screwdown at the fifth stand. Signals responsive to tension or acceleration may also be applied to amplifier 66 at 96. The screwdown of stands S 4  and S 6  is controlled in a similar manner by the signals from amplifier 112. If the integrated thickness error exceeds a value sufficient to cause operation of a relay 122 it is further sampled by a switch 130, operating at a suitable frequency, which applies it through an integrating amplifier to control screwdown at the second and third stands also. All the integrators are automatically reset after each pass. A system (not shown) responsive to deflections of electrically or hydraulically operated tensioning devices between the stands is provided to control the speeds at which the rolls of certain stands are driven so that desired tension conditions are maintained.
Patent GB-363752-A (GB)
Title: Improvements relating to apparatus for slicing potatoes and the like
IPC: B26D1/15
Filed: 1930-10-13
Abstract: 363,752. Slicing vegetables. MEREDITH & DREW, Ltd. and WRIGHT, F. R., 164, High Street, Shadwell, London. Oct. 13, 1930, No. 30579. [Class 5 (i).] Apparatus for cutting thin corrugated slices of potatoes and similar foodstuffs with the corrugations on opposite sides of the slice running at an angle to each other, is so constructed that in successive cuts the cutters act in directions inclined to one another, angular movement of the potato &c. between successive cuts being unnecessary. Co-planar discs 2, 3 rotated in opposite directions by bevel gears, Fig. 2, bear corrugated cutters 4, 5. The potato to be sliced is fed by any suitable means such as a hand presser 24 into contact with the discs, which are formed segmentally, as shown. In a modification, Fig. 3, corrugated cutters 42, 43 are mounted on a disc 27 freely mounted in a frame 28 which is linked at 30, 31 to a fixed base. An eccentric shaft 34 on the disc is pivoted to an arm 35 pivoted at its other end to a fixed shaft 39 from which power is transmitted to the shaft 34 by belt-and-pulley transmission. The combined oscillatory and rotary motion so produced causes the knives, during cutting, to move in inclined directions.
Patent GB-536594-A (GB)
Title: Improvement in an electrical method of, and apparatus for, gas testing
IPC: G01N27/66
Filed: 1939-11-22
Abstract: 536,594. Resistance and voltage measurements ; determining physical qualities of materials. JAEGER, W. Nov. 22, 1939, No. 30589. Convention date, Nov. 24, 1938. [Class 37] In an ionization chamber for determining the pressure, temperature or composition of a gas, the change of potential of an electrode influences an electric discharge in a closed system filled with gas at a suitable pressure. The gas to be tested is passed into an ionization chamber 1 between electrodes 2, 3 and is ionized by a radio-active compound 4. A current is passed between the electrodes 2, 3 from a potential source 5 and causes a third electrode 6 to take up an intermediate potential which is modified as a consequence of space charges when the gas in the chamber 1 undergoes a modification. The potential of the electrode 6 is applied to an electrode 10 between two electrodes 9, 11 in a gas discharge tube 8. A change of potential of the electrode 10 starts the discharge, which continues between the electrodes 9, 11 and actuates a relay or signal R, condensers 7, 12 prevent the discharge from starting when the battery 5 is connected. The electrode 9 may be movable electrostatically towards the electrode 10, causing ignition by decreasing the distance between the electrodes. This may be effected by attaching the electrode 9 to a strip or wire fixed at both ends but able to rotate. Springs may be provided to keep the wire stretched. The insulation of the electrode may be separated by a narrow partition from that part of the chamber through which the gas under test is flowing. The insulation chamber may be swept through by a current of clean air or other gas. The insulation or the gas round it may be heated to prevent condensation of moisture. The ionization chamber 1 may be replaced by two ionization chambers with two electrodes each, the second chamber being wholly or almost wholly enclosed and its size being such that the current flowing through it is only slightly affected by potential, so that small changes in the internal resistance in the ionization chamber due to gas changes cause considerable changes of potential. The apparatus may be combined with a fire alarm based on temperature testing, both arrangements using the same wires to the alarm signal.
Patent GB-409375-A (GB)
Title: Improvements in or relating to metal cutting broaches
IPC: B23D43/02
Filed: 1932-10-31
Abstract: 409,375. Broaching-tools. LAPOINTE MACHINE TOOL CO., Ltd., and RANDALL, F. E., Edgware, Middlesex. Oct. 31, 1932, No. 30612. [Class 83 (iii).] A broach has the sides of the cutting teeth tapered downwardly or rearwardly for reducing the friction between the teeth and walls of a groove or the like being cut. The teeth d in a broach for spline cutting are parallel for a short portion e of their length, the sides then being relieved in the axial direction to an extent of 0.5‹ to 1‹. The teeth may also be relieved towards the centre of the broach, Fig. 3, in which case the leading teeth, Fig. 4, which are of shallow depth are formed with chamfered sides i, the grooving or undercutting k being effected by the following teeth.
Patent GB-425674-A (GB)
Title: Improvements in apparatus for the manufacture of cigarettes having mouthpieces of wadding, paper or the like
IPC: A24C5/52
Filed: 1934-10-25
Abstract: 425,674. Cigarette-making machines. BERGER, M., 79B, Obere Dresdner Strasse, Freital, near Dresden, and UNITED CIGARETTE MACHINE CO. AKT.-GES., 48, Zwickauer Strasse, Dresden, Germany. Oct. 25, 1934, No. 30660. [Class 130] In a machine for making filter-tip cigarettes, a continuous rod of tobacco is formed and cut into sections which are moved forward at a greater speed than the rod so that tips may be inserted between the sections. The rod formed in mechanism c is cut by a knife e and the sections are fed through a tube f by fingers g. Tips are supplied by a conveyer k to a wheel i which has bores each containing a tip and are moved successively in front of the tube f, so that a tobacco section and tip are conveyed together on to the wrapping web s by the fingers g. The tips are prepared by a row of devices each comprising knives 18, 19, Fig. 4, which cut strips from a paper web drawn from a roll 3, the knife 18 being actuated by eccentrics 10 and rods 13 working in pivoted sleeves 14 to which the knife 19 is secured. The paper strips are formed in a trough m into a rod which is cut into mouthpiece lengths by the knife o, Fig. 1.
Patent GB-377864-A (GB)
Title: Improvements in or relating to a method of and apparatus for producing fire-extinguishing foam
IPC: B01F5/04
Filed: 1931-11-06
Abstract: 377,864. Mixing. BOYD, F. L., 1632, Sansom Street, Philadelphia, U.S.A. Nov. 6, 1931, No. 30856. [Class 86.] In a foam-generating apparatus of the kind in which dry powder from a hopper 36 is drawn by suction into a high velocity stream of water issuing from a jet 46, the powdercharged stream is given a twisting or whirling motion, as it leaves the venturi 40, by means of twisted vanes 44. A hinged check valve 28 is arranged behind the vanes. The venturi is provided in a sleeve 39, which is rotatably mounted in the casing 19 and which has an opening 48 adapted to register with the outlet 31 from the hopper 36. The sleeve can be rotated, to close the outlet from the hopper and cut off the powder supply, by means of an arm 49. The two sleeves 39 of a duplex apparatus are linked by a lever 52 for operation in unison. The hopper is removably secured to the casing 19 by means of lugs 37 and a screwed ring 33 with a slotted flange 34. Specification 326,578, [Class 47 (ii), Fire-extinguishing &c.], is referred to.
Patent GB-674772-A (GB)
Title: Question-and-answer device
IPC: A63F9/18
Filed: 1949-12-01
Abstract: 674,772. Changing signs. NEUSSER. L. Dec. 1, 1949, No. 30873/49. Glass. 3(i) [Also in GroupXV] A question-and-answer device comprises a casing 1 housing at least one roller 3 and which has aligned windows 8, 9, 10 for the, or each roller with the, or each roller axis parallel with its windows so that the roller is beneath the windows, the or each roller having a spool 4 associated therewith for a strip or band having a. plurality of questions, answers and grading figures, arranged in sets consisting of a question, answer and grading figure arranged in line across the strip or band whereby by turning the or a roller, one set will appear in the windows associated therewith. The casing 1 contains a plurality of strip carrying rollers 3, and spools 4 actuated by knobs 6. Each opening 8 shows one of a large number of questions carried by the strip, each opening 9 shows the corresponding correct answer and each opening 10 shows a figure indicating the difficulty of the question. Counters 12 in the casing may be adjusted to show the marks obtained in answering each question. The answer openings 9 may have a cover over them. The web may be endless. The rollers may be mechanically or electrically driven and if the wording is in small print, magnifying lenses may be used in the openings 8-10.
Patent GB-260932-A (GB)
Title: Apparatus for safely sending objects from aerial crafts to the ground
IPC: B64D1/02
Filed: 1925-12-07
Abstract: 260,932. Soc. Anon. pour l'Exploitation des Brevets K³nzer. Nov. 4, 1925, [Convention date]. Parachutes; receptacles detachable from aircraft for mails and freight.-In a parachute apparatus for controlling the descent of articles dropped from aircraft, a parachute 71 is packed in the open upper end of a cylindrical casing 61 and held down upon the head of a spring-pressed piston 63 by means of a hinged cross-bar 73 which extends diagonally across the open end and is adapted to be released bv clockwork timing mechanism to permit the piston to eject the parachute. The cross-bar 73 is held in position by the hooked end of a pivoted lever 74 having a pin 75 projecting into the casing 61 in the path of a striking pin 76 on a wheel of the clockwork. The initial distance between the pins 75, 76, which determines the timing of the device, is adjusted by a lever 77 which is integral with the pin 76 and may move over a scale. The clockwork is started at the moment the apparatus is released from the aircraft, by moving a lever 78 which disengages a detent from one of the gear wheels. A diagonal bar 68 working in vertical slots 69 with right-angled bottom bends 70, is used to hold the piston 63 depressed whilst the parachute is being packed. The load is enclosed in a detach. able Dulged hood 65 which may be provided with a double bottom.
Patent GB-1382458-A (GB)
Title: Process for the production of polyamines
IPC: C08G/
Filed: 1972-07-03
Abstract: 1382458 Preparation of polyamines BAYER AG 3 July 1972 [7 July 1971] 30934/72 Heading C2C  Polyamines are produced continuously by reacting an aromatic amine with formaldehyde or a formaldehyde-donor in the presence of an acidic catalyst, the molar ratio of amine to formaldehyde or formaldehyde-donor being from 15 : 1 to 2 : 1 and the molar ratio of amine to catalyst being from 10 : 1 to 1 : 1, which process comprises mixing the amine with the catalyst and dividing the mixture into first and second amine/catalyst streams, cooling the first amine/catalyst stream to a temperature below 40 C. in a first cooled reactor, adding the formaldehyde or formaldehyde-donor and conducting a precondensation reaction in a second cooled reactor at a temperature of up to 60 C., conducting all or a part of the resulting precondensation product to a first residence reactor where it is reacted at a temperature of at least 80 C. with the second amine/catalyst stream, which has been led directly without cooling to the first residence reactor, and working up the resulting rearrangement product under alkaline conditions. Examples describe the preparation of polyamines from analine with the aid of flow diagrams.
Patent GB-1389260-A (GB)
Title: Recofering flavouring substances
IPC: A23L27/24
Filed: 1972-07-03
Abstract: 1389260 Recovering flavouring substances TOBACCO RESEARCH & DEVELOPMENT INSTITUTE Ltd 3 July 1972 [6 July 1971 31 Jan 1972] 30976/72 Heading C6E A vegetable material is pulped and water is added, then the sugar content is determined and, if necessary, sugar is added to a level suitable for fermentation to proceed and the mixture is fermented with an alcohol producing yeast culture and the off gases are passed through activated carbon to sorb the flavouring substances which are recovered by desorption. Desorption may be achieved using steam, ethanol vapour or liquid, a gas inert to the system, or application of a vacuum. The vegetable material may be spices, fruit, fruit rinds, flowers, berries, beans or seeds, herbaceous parts of plants, or substances extracted from plants.