baber/WOPTO huggingface dataset:
Patent GB-181758-A (GB)
Title: Improvements in the manufacture of artificial silk and the like
IPC: F26B13/00
Filed: 1921-01-19
Abstract: Strands of artificial silk are so operated upon that during the final drying process the individual filaments forming the strand are kept in continuous relative movement, whereby they are prevented from sticking together and assume a more or less crinkled appearance, thus increasing the covering-power of the finished product.  The strands in skein form and finished except for drying are supported on rods, or upon a slowly rotating holder of diameter, say, half that of the skein, and are subjected to the action of a strong blast of heated air.  When the strands are arranged to be under tension during drying, the supporting-rods are slowly rotated, and the strands are subjected to an air blast after partial drying and after the tension has been partly or wholly released and the filaments are no longer in a hydrated condition.  A number of skeins may be treated in a chamber conforming to the shape of the skeins and of such dimensions that the air passes through the skeins.  A mechanical movement, effected by revolving the supporting-rods, may wholly or partly replace the direct action of the air upon the filaments.  A skein that is already dried may be treated as described above and sprayed with water or steam, so that the relative movement of the filaments is accompanied by a drying action.
Patent GB-406859-A (GB)
Title: Improvements in or relating to watch cases
IPC: G04B37/06
Filed: 1933-01-27
Abstract: 406,859. Watches. STOLL, R., 37, Portland Road, Edgbaston, Birmingham. Jan. 27, 1933, No. 2614. [Class 139.] Cases; pendants.-The pendant tube of a two-piece watch case is made in two parts, one part f being formed as a lip on the rim b of the case a and the other part g being a lip on the rim d of the other part c of the watch case. When assembled, lip g nests into lip f and the upper edges of the lips are housed in a recess under the winding crown. In a modification, the two parts f and g are of the same size and their edges abut one another. A shoulder e on the back c coacts with the free edge of the front a of the case.
Patent GB-1437071-A (GB)
Title: Telescopic props
IPC: F16J15/32
Filed: 1975-01-21
Abstract: 1437071 Mine roof supports GEWERKSCHAFT EISENHUTTE WESTFALIA 21 Jan 1975 [28 Jan 1974] 2648/75 Heading F1D A telescopic mine roof support, Fig. 1, which has outer, intermediate and inner members 10, 11, 12 is extended by admitting hydraulic fluid through a duct 25 into a chamber 24 to extend the member 11 relative to the member 10. When the member 11 is fully extended the consequent rise in pressure in the chamber 24 opens a spring- loaded check-valve 28 so that fluid flows into a chamber 27 and extends the inner member 12. During extension fluid is returned through a port 21 and is discharged to atmosphere through an inclined duct or ducts 32. To retract the support, fluid is supplied through the port 21 to a chamber 20 and is returned through the duct 25. This fluid acts on a piston face 19 to retract the member 11. As the latter approaches the end of its travel the valve 28 is unseated by a stem 31. This allows fluid from a chamber 22 to return when the inner member 12 is retracted by fluid passing through the duct or ducts 32 and acting on a piston face 23. Fig. 2 shows the arrangement of seals in a bush 14 attached to the outer member 10. A slightly different arrangement is illustrated in Fig. 3, (not shown).
Patent GB-540409-A (GB)
Title: Improvements in flexible couplings for pipes or other ducts or conduits
IPC: F16L27/107
Filed: 1940-02-12
Abstract: 540,409. Pipe joints. AIR CONDITIONING & ENGINEERING, Ltd., and KENNETT, V. A., (formerly ERAMINSKY V. A.). Feb. 12, 1940, No. 2703. [Class 99 (i)] A flexible pipe-coupling comprises a flanged rubber tube 14 which is inserted between flanges 11, 13, on the pipes 10 and 12 to be joined. Bolts 18 and backing-plates 17 complete the joint. The pipes may be round or square in crosssection.
Patent GB-413759-A (GB)
Title: Improvements in or relating to means for recording and checking the positions of definite points in relation to a fixed point
IPC: G01C21/00
Filed: 1933-01-27
Abstract: 413,759. Co-ordinate measuring-instrument. GOETZ, E., Diepoltsau, St. Gallen, Switzerland. Jan. 27, 1933, No. 2704. [Class 97 (iii).] Apparatus for indicating the position of points relatively to a fixed datum point by polar co-ordinates in a horizontal plane and a vertical ordinate comprises a cylindrical shell a surrounding the fixed point O, the polar angle being measured on the upper edge b and the measured co-ordinates recorded on the outer surface. A swinging arm c, removably mounted in ring bearings d, e, moves over the graduations on the surface b and carries at its free end a plumb line S, S1.
Patent GB-1014610-A (GB)
Title: Improvements in laminated sheets or panels
IPC: B32B27/00
Filed: 1963-01-22
Abstract: 1,014,610. Laminates. S. C. SMITH. Jan. 2, 1964 [Jan. 22, 1963], No. 2710/63. Heading B5N. A laminated sheet comprising an outer plastics layer, an intermediate layer and a rigid backing sheet is formed by placing the intermediate layer on a support, such as a heatable platen, surrounding the layer by a frame, placing the plastics material thereon and applying heat and pressure to bond the plastics to the intermediate layer and adhering the composite layer so formed to the rigid backing sheet. The intermediate layer may be textile fabric of cotton or jute, which may be preroughened, or cork granules bonded together by a waterproof glue such as phenol or urea formaldehyde. The plastics material may be in sheet, powdered or granulated form and may comprise polyethylene, polypropylene, polystyrene, chlorinated polyether or a like polymer, or a compatible mixture of one or more thereof. The backing sheet may be plywood, hardboard or like sheet material or a bench top or the interior surface of a tank and may be bonded to the composite layer by an adhesive which may be such as to provide a degree of elasticity between the composite material and backing sheet e.g. a synthetic resin adhesive.
Patent GB-524327-A (GB)
Title: A process for separating suspended impurities from liquids
IPC: B04B1/12
Filed: 1939-01-27
Abstract: 524,327. Centrifugal separators. AKTIEBOLAGET SEPARATOR. Jan. 27, 1939, No. 2848. Convention date, Jan. 29, 1938. [Class 23] Suspended solid particles are removed from liquids by centrifugal separation in two or more stages. The first stage is conducted in a centrifuge 1 where the sludge is discharged continuously or intermittently from peripheral outlets in the bowl and the separated liquid containing a small portion of sludge only is treated for the second stage in a separator 2 where the separated sludge remains in the bowl which must be stopped for removal of the sludge. The sludge concentrate may be treated any number of times in machines similar to the machine 4, after a solvent or diluent has been added in the tank 3. Where a diluent is added a gravity settlement may take place in the tank 3 before the centrifugal separation in the machine 4 is effected. The dilution may be effected by using a separator bowl 5 with nozzles 6 opening from sludge chamber to the chamber 7 from which discharge nozzles 8 convey the diluted sludge. The additional liquid is supplied to the chamber 7 through the channels 9.
Patent GB-1383435-A (GB)
Title: Magnetic recording and reproducing arrangements
IPC: G11B5/187
Filed: 1972-01-21
Abstract: 1383435 Magnetic heads RICOH KK 21 Jan 1972 [22 Jan 1971] 2917/72 Heading G5R In a magnetic head in which the length of the gap varies over its width in order to extend the effective frequency range, the two surfaces defining the gap are closest together and mutually parallel at one side of the gap and diverge symmetrically towards the other side.
Patent GB-454421-A (GB)
Title: Improvements in or relating to the preparation of baked cereal foodstuffs
IPC: A21D2/04
Filed: 1935-01-29
Abstract: In the production of hydrogen-peroxide leavened baked cereal products, the dough is prepared from a plurality of flours of different catalase activities and the pH of the dough is adjusted in order to obtain substantially complete decomposition of the peroxide in the dough in the desired proving time.  The effectiveness of the catalases varies from zero to a maximum with the pH range of 5 to 9, the optimum pH value being 6,5 to 7,0. The pH value of the dough is adjusted to the optimum value by the addition of alkali or acid, it generally being necessary to add alkali to adjust the normal acidity of the dough, i.e., a pH value of 5 to 6.  The amount of peroxide added will vary with the degree of leavening required, the kind and grades of flour used and the desired time of proving, and, in baking, an oven temperature slightly higher than that ordinarily used is desirable.  The amount of acid or alkali to be added will depend on the desired time of proving and is ascertained by trials on sample batches. Suitable acidic materials are acetic acid, lactic acid, gluconic acid, calcium acid phosphate and sulphuric acid, and suitable alkaline materials are sodium hydroxide, sodium carbonate, sodium hydrogen carbonate, trisodium phosphate, calcium hydroxide and sodium citrate.  Examples of processes for making cereal products are given.  Specifications 433,471 and 445,768, are referred to.  The Specification as open to inspection under Sect. 91 is not limited to the use of a mixture of flours, and states that oxygen evolving compounds such as soluble persalts, e.g. alkali metal percarbonates, perborates or perphosphates may be used, alone, or in conjunction with hydrogen peroxide.  The natural alkalinity of such compounds must be taken into account when adjusting the pH value.  Also the rate of peroxide decomposition may be controlled by the use of flours having different catalase activities without adjustment of the pH value.  This subject-matter does not appear in the Specification as accepted.
Patent GB-953524-A (GB)
Title: Plasma switching electric discharge tube
IPC: H05H1/04
Filed: 1963-01-24
Abstract: 953,524. Discharge apparatus. UNITED STATES ATOMIC ENERGY COMMISSION. Jan. 24, 1963 [March 2, 1962], No. 3024/63. Heading H1D. [Also in Division G6] Apparatus for generating and heating a plasma comprises a long hermetically sealed housing formed of electrically conductive material, an insulator mounted within the housing at one end, a first electrode disposed within the housing in spaced relationship from the insulator and from the wall of the housing, a long conducting shaft disposed in the housing and extending from the insulator and having an end surface forming a second electrode facing the first electrode, a plurality of electrical conductors extending from the first electrode to the wall of the housing in a direction perpendicular to that of the shaft, means for evacuating the housing and supplying gas to it, and an electrical power supply connected between the housing and the conducting shaft at points remote from the electrodes. In Fig. 1 a conductive cylinder 11 is sealed at one end by a conductive end closure 12, which carries an electrode 13, and at the other end by an insulator 21 through which passes a cylinder 24 carrying a second electrode 26. An aperture in electrode 26 communicates with an insulating tube 33 which carries a pair of spark electrodes 36, 37 at its other end. A high current supply 43, e.g. a condenser bank, is connected to a high current switch 44 which is connected by a plurality of coaxial cables 46 to the cylinders 11 and 24 at a plurality of points spaced round their circumferences. Electrode 13 is connected directly to the wall of cylinder 11 by a plurality of radial members 16. In operation initial ionization is produced by a discharge between electrodes 36 and 37, and the main discharge then occurs radially between cylinders 24 and 11. The plasma so produced is contaminated with impurities owing to the discharge across the surface of insulator 21. The plasma is swept down the tube by its magnetic field, and at an intermediate stage is as shown by the stippled area in Fig. 4c. The left interface is slanted as the magnetic field is more intense near cylinder 24, so that this part of the plasma is accelerated more than the outer part; this may be corrected, if desired, by constructing the apparatus with the insulator 21 slanted in the opposite direction. At a subsequent stage, Fig. 4d, the contaminated plasma is swept into the righthand end of the apparatus and a pure plasma is left between electrodes 13 and 26; this plasma subsequently contracts due to the pinch effect, Fig. 4e (not shown). In a modification, Fig. 6 (not shown), baffles are provided adjacent the end wall 12 to prevent contaminated plasma from being reflected back into the discharge space.
Patent GB-275548-A (GB)
Title: Improvements in or relating to chairs
IPC: A47C4/03
Filed: 1927-02-02
Abstract: 275,548. Wilkinson, J. A. Aug. 3, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Folding seats; frames. - A chair comprises two side pieces, each provided with legs 10, 11, and carrying a support 13, 15 to which a. seat 24 may be removably secured, together with a back-rest 25 extending between the upper parts 26 of the side pieces. Each side piece is preferably of an inverted Y shape. The seat member 24 may be notched at 22, 23 to accommodate the legs 10, 11, and may carry bolts 17 engaging slots 18 in the member 15.
Patent GB-231620-A (GB)
Title: Improvements appertaining to cigarette holders
IPC: A24F13/10
Filed: 1924-02-06
Abstract: 231,620. Hebblethwaite, A. G. Feb- 6,1924. Cigarette holders.-In a cigarette holder in which an ejectment member c slidable within the cigarette-receiving cavity b is formed with resilient expanding projections c<1>, these projections are formed and arranged to scrape and clean the holder. As shown, the ejector c is formed with a tubular stem c<2> screwed into the stem a. The ejector may be retained in its inner position by a spring in the space g. In another construction, the projections c<1> are formed on a tube slidable within the cavity b, a pin on the tube engaging a longitudinal slot in the holder. In a further construction the projections c<1> are sprung into a groove on the end of the stem of the holder, a cigarette-receiving sleeve being slidable over the stem. A pin on the stem engages a longitudinal slot in the sleeve.
Patent GB-538908-A (GB)
Title: Improvements in dispersing ores and the like
IPC: B03D1/004
Filed: 1940-02-17
Abstract: 538,908. Colloidal sols. AMERICAN CYANAMID CO. Feb. 17, 1940, No. 3072. Convention date, March 3, 1939. [Class 1 (i)] Solubilized colouring matters are used to assist the dispersion of finely divided ores, particularly precious metal ores, in aqueous media. Particularly effective are sulphonated Nigrosine, Sap Brown (a soluble earth colour), Sun Yellow, and the sulphonated tar residue from betanaphthol stills. The invention is applicable to sand-slime separations, jigging and tabling processes &c. Specification 529,013, [Group II], is referred to.
Patent GB-1081961-A (GB)
Title: A.c. mains failure detector
Inventor: JEWITT ALAN JOHN
IPC: H02H3/24
Filed: 1966-01-24
Abstract: 1,081,961. Transistor pulse circuits. STANDARD TELEPHONES & CABLES Ltd. Jan. 24, 1966, No. 3131/66. Heading H3T. [Also in Divisions G1 and H2] In a circuit for detecting and indicating the presence or absence of an alternating potential applied to terminals 1, 2, the positive and negative half-cycles of the input waveform are clipped by Zener diodes Z1, Z2 in conjunction with blocking diodes MR1, MR2 together with, in the case of a large alternating potential, isolating components R1, C1, R2, C2 to form a rectangular waveform of sufficiently low amplitude for application to transistors T1, T2 of opposite conductivity type operated in a saturated switching mode. The rectangular wave outputs of transistors T1, T2 are in phase but at different potential levels. The output from transistor T1 is inverted by a level changing transistor T3 so that the rectangular wave output from T3 is 180 degrees out of phase with that from transistor T2 but has the same levels. These complementary waves are both applied to a diode " and " gate formed by diodes MR5, MR6 and resistor R13. The output from the gate is connected through diodes MR7, MR8 to control an inverting transistor T4. The inputs to the diode " and " gate are not completely complementary due to finite switching times of the transistors and diodes so that the gate has a pulse waveform which would produce an output at terminal 3 of a positive-going pulse for each half-cycle of alternating potential. A capacitor C3 smooths these pulses to produce a unidirection potential. When the alternating potential ceases transistors T1, T2, T3 become non-conductive and, as both inputs to the diode " and " gate are now negative, transistor T4 will conduct and saturate as soon as capacitor C3 charges to a sufficiently negative potential. The output at terminal 3 will move to a near zero potential, indicating that the alternating potential connected to terminals 1, 2 has ceased.
Patent GB-578669-A (GB)
Title: Improvements in insecticidal preparations
IPC: A01N65/12
Filed: 1944-02-19
Abstract: An insecticidal concentrate in the form of a solubilised oil dispersion containing pyrethrum extract contains at least 5 per cent. W/V (grams/cubic centimetres) and preferably 10 per cent. W/V or more pyrethrins, and either a water-soluble cationic soap, in high concentration producing a water-in-oil dispersion, or in lower concentration producing an oil-in-water dispersion, or a non-hydrolysing water-soluble anionic soap, e.g. a salt of a long chain hydrocarbon sulphuric acid ester such as Teepol (Registered Trade Mark) together with a positive compound, e.g. piperidine, cyclohexylamine or an anil formed by condensation of cyclohexylamine with atronellal, producing an oil-in-water dispersion.  Suitable cationic soaps include salts of long chain hydrocarbon pyridinium compounds, long chain hydrocarbon quaternary ammonium bases or long chain hydrocarbon amine bases, e.g., Fixanol or Lissolamine (Registered Trade Marks).  The oil phase may be wholly derived from the fatty or resinous constituents of the pyrethrum extract, but a mineral oil, e.g. kerosene or shell oil P.31 or a vegetable oil may be added.  The concentrate may also contain further insecticides such as p-dichlorodiphenyltrichlorethane (together with a solubilising agent such as methyl cyclohexanone, safrole or methyl nonyl ketone), rotenone or Lethane (Registered Trade Mark).  A proportion of cresylic acid or other phenol or an alcohol or a fatty acid may be added to the concentrate.  Other additions include heavy naphtha, hydroquinone, pyrocatechol sesame oil, geraniol and terpineol.  The water-in-oil dispersions may be diluted with oil.  All the dispersions may be diluted with water. Specifications 493,074, 538,523, 547,927, 559,735, and 569,429 are referred to.  Reference has been directed by the Comptroller to Specification 569,429.
Patent GB-625303-A (GB)
Title: Improvements in or relating to handles for carpet sweepers and suction cleaners
IPC: A47L9/32
Filed: 1947-02-03
Abstract: 625,303. Hand-tool handles. MORPHYRICHARDS, Ltd., and MORPHY, D. W. Feb. 3, 1947, No. 3201. [Class 61(i)]  The handle A of a carpet sweeper or suction cleaner has the lower part c rearwardly curved so that in normal position of use the forward end of the handle is parallel or slightly inclined to the floor level enabling it to pass under low furniture. The upper part b of the handle is curved reversely which curvature is continued backwards so that the grip part e curves downwards. The part c is united at B<SP>1</SP> to the yoke B between the terminal bosses B<SP>2</SP> of which may extend a tubular pivot pin, and the electric leads D supplying the motor may enter the handle at the switch C passing down through the hollow handle, yoke and pivot pin and out at D<SP>2</SP> through an insulating bush in the pivot pin. Specifications 624,894 and 625,300 are referred to.
Patent GB-1167611-A (GB)
Title: Improvements in or relating to Storage Systems
IPC: H03K3/037
Filed: 1967-01-23
Abstract: 1,167,611. Transistor data stores. INTERNATIONAL BUSINESS MACHINES CORP. 23 Jan., 1967 [28 Jan., 1966], No. 3317/67. Heading G4C. [Also in Division H3] A storage cell in a multi-cell storage system has two transistors with a collector of only one directly connected to a base of the other, the emitters of both being connected to a common impedance, and coincident pulses of opposite polarities being applied to the collector and base of the one transistor to write information into the cell which has two quiescent states each involving the conduction of a respective one (only) of the transistors. Each memory element (cell) 1, 100, 200, 300 of the storage matrix in Fig. 3 stores 1 or 0 by the conduction of transistor 12 or 10 respectively. A pulse on the relevant reset line will reset a cell to 0. Coincident pulses of opposite polarities on the bit and word lines will set a cell to 1. Destructive read-out is by pulsing the reset line, since if and only if the cell stores 1 (transistor 12 conducting) the resulting change of transistor 10 from non-conducting to conducting will be detected by the relevant sense amplifier shown. Non-destructive readout is by pulsing the word line (or varying the reset line potential) since if and only if transistor 10 is conducting, the current through it will then change. Fig. 4 (not shown) shows a modified cell in which the bit line also acts as the sense line, the collector of transistor 10 being connected to a bias (or to the word line). Transistor 12, when conducting, is normally just out of saturation. Writing is as before, but for readout the word and reset lines are both pulsed, so if and only if transistor 12 was already conducting, it will saturate and change the current on the bit-sense line. Fig. 5 (not shown) shows a cell which differs from that in Fig. 3 in that the resistor 30 is replaced by a third NPN transistor which forms a constant current source. The base, emitter and collector of the third transistor are respectively connected to the reset line, a bias (via a resistor), and the emitters of the transistors 10, 12. Fig. 6 (not shown), shows the cells of Fig. 5 (not shown), used in a shift register, though the other types of cell disclosed may be used instead. Each stage has two cells (upper and lower say), the contents of the upper cells being transferred to the corresponding lower cells, followed by resetting of the upper cells, then transfer to the upper cells of the respective next stages, followed by resetting of the lower cells. The bases of the transistors 12 (or rather the corresponding transistors) of the upper cells are connected to a common set line to control read-in and transfer to the upper cells, and a similar line is provided for the lower cells. A reset line is provided for the upper cells and one for the lower cells. NPN transistors are used throughout, but may be replaced by PNP transistors. Integrated monolithic circuitry is mentioned.