baber/WOPTO huggingface dataset:
Patent GB-852119-A (GB)
Title: Air conditioning system
IPC: F24F5/00
Filed: 1957-06-24
Abstract: 852,119. Refrigerating; heat pumps. McFARLAN, A. I. June 24, 1957, No. 19799/57. Class 29 In a system having a plurality of compression systems the condensers 10, 16, 22 of which heat one fluid at progressively increasing temperatures and flowing thereover in series and the evaporators 12, 18, 23 of which cool another fluid at progressively decreasing temperatures and flowing thereover in series, the lowest temperature evaporator is in the same compression system as the highest temperature condenser and vice versa. As shown the condensers heat water recirculated to them by a pump 34 through a cooling tower and the evaporators 12, 18, 23 cool an airstream 37 circulated by fan 38. Further evaporators 14, 20. 24 are in parallel with evaporators 12, 18, 23 and cool a second airstream 39. In a modification, the evaporators cool a stream of water supplied through automatic mixing valves to several air coolers. Each compression system has an auxiliary condenser through which water can be circulated to the mixing valves if air heating is needed
Patent GB-381913-A (GB)
Title: Method of and apparatus for the centrifugal treatment of liquids
IPC: B04B1/12
Filed: 1932-07-13
Abstract: 381,913. Centrifugal machines. AKTIEBOLAGET SEPARATOR, 8, Fleminggatan, Stockholm. July 13, 1932, No. 19804. Convention date, July 14, 1931. [Class 23.] A centrifugal machine for the treatment of liquids has peripheral openings 7 for the discharge of heavy matters, the discharge being assisted by an auxiliary liquid supplied through the passages 5 to the chambers 4. Apertures 6 form a communication between the cham. bers 4 and the interior of the separating bowl. Some of the auxiliary fluid is byepassed through pipes 8 into the separating chamber and is directed to the apertures 6. Nozzles 9 are placed in the passages 5 to resist the flow of liquid to the chambers 4, so that the pressure in these chambers is lower than in the separating bowl, This causes a flow of liquid through the openings 6 from the bowl to the chambers 4.
Patent GB-358478-A (GB)
Title: Valve for slush pumps
IPC: F04B53/10
Filed: 1930-06-30
Abstract: 358,478. Pump valves. MELOTT, J., 2930, Walton Avenue, Los Angeles, U.S.A. June 30, 1930, No. 19831. Convention date, April 17. [Class 135.] Closure members, multiple-beat lift.-A check valve for slush or mud pumps having a conical metal to metal closure is provided with a seating ring 39, Fig. 4, of resilient material adapted to bear on a converse rim 22 of the valve seat with a yielding contact, and secured by a metal plate 50. The resilient ring may be provided with a leather facing 70, Fig. 6 and its periphery may be grooved, as shown, for additional flexibility. A flexible metal ring 72 with turned down edge 73 may be added to form an additional and yielding metal to metal contact with the seat, as shown ; this ring 72 may, if desired, be embedded in the seating ring 39. In closing, a fluid cushion is formed in an annular space between the valve and seat, and the slush is compressed in the annular space and gritty matter forced from the slush.
Patent GB-257259-A (GB)
Title: Method of producing titanic acid unaffected by light
IPC: C01G23/053
Filed: 1926-08-13
Abstract: 257,259. Deutsche Gasgl³hlicht-Auer- Ges. Aug. 20, 1925, [Convention date]. Grant of Patent refused. Titanium oxide unaffected by light is obtained bv hydrolysis under pressure of a titanium sulphate solution containing a small quantity of trivalent titanium, that is to say such a quantity that the solution after hydrolysis will contain only traces of trivalent titanium or none at all. With a titanium sulphate solution containing ferrous sulphate equal to 4-8 per cent of ferrous oxide, and with 10 per cent of free sulphuric acid, 0.02-0.04 per cent of trivalent titanium will be sufficient, the hydrolysis being effected under pressure at 175‹.
Patent GB-652944-A (GB)
Title: Process for the preparation of 24-ketocholesterol and its derivatives
Inventor: HEY DONALD HOLROYDE
IPC: C07J75/00
Filed: 1948-07-27
Abstract: 24-Ketocholesterol and derivatives thereof are obtained by oxidizing by means of ozone, fucosterol, or an ester or ether thereof, or fucostadienone to produce a 24-ketosteroid of the general formul  I or II <FORM:0652944/IV (b)/1> <FORM:0652944/IV (b)/2> in which R in I is, for example, OH, OAcyl, or OAlkyl.  As solvent for the ozonide which is formed glacial acetic acid or carbon tetrachloride may be used.  Detailed examples are given.
Patent GB-200383-A (GB)
Title: Improvements in rubber soled boots and shoes
IPC: A43B13/04
Filed: 1922-07-22
Abstract: 200,383. Greengate & Irwell Rubber Co., Ltd., and Hubbard, W. July 22, 1922. Connecting uppers to insoles and soles.-A rubber-soled boot or shoe particularly applicable to athletic purposes has a thin sole C of unvulcanized crepe or plantation rubber stitched to an upper A, and an outer sole E also of unvulcanized crepe rubber, which covers the inner stitches, attached to the thin sole C by rubber solvent or solution. A layer of fabric D may be placed upon or solutioned to the thin soles C, and be secured by stitching to the upper A.
Patent GB-1184049-A (GB)
Title: A Device for Improving the Reading Conditions in a Digital Indicator
IPC: H03M1/12
Filed: 1967-05-02
Abstract: 1,184,049. Display systems. CEA-PEREGO S.p.A. 2 May, 1967 [24 May, 1966], No. 20196/67.. Heading G4H. An indicating system displaying a measured value V digitized by an analogue/digital converter CAD (Fig. 1) includes a bi-stable device FF switched when the least-significant output digit of the converter changes from an even value to an odd value to generate a bias signal D<SP>1</SP> of value less than one quantum, this bias signal being added to (or subtracted from) the measured value before it is applied to the converter so that some of the fluctuations occurring in the displayed value are eliminated. In the embodiment of Fig. 1 whenever the bistable device is set to its " 1 " state a relay R is energized to close contact r 2  to apply the bias voltage V<SP>1</SP> to the converter. In a second embodiment (Fig. 2, not shown) the bias voltage is applied to a meter (3) so that by reading both the indicator and the meter a more accurate value may be obtained.
Patent GB-1260614-A (GB)
Title: Reversible counter
IPC: H03K21/08
Filed: 1970-04-27
Abstract: 1260614 Control system DANFOSS AS 27 April 1970 [26 April 1969] 20201/70 Headings G4D D6Y D6C1 D6C2 D1D9G and D1D11 The supply of count-up or count-down impulses to a reversible counter is inhibited when the counter reaches its upper or lower limit, respectively. Count impulses at 2 coincide with marking of an upwards terminal 3 or a downwards terminal 4 so that a binary cascade counter comprising stages 5-7 counts up or down in known manner. NAND gates 11, 12 respond to attempts to exceed the upper or lewer limits of the counter in inhibit count impulses at gate 8. The system is applied to the switching of appropriate windings 30-36 controlling refrigerant compressors. Lamps 37-39 indicate the state of the counter.
Patent GB-596962-A (GB)
Title: Improvements in and relating to roller ending machines
IPC: C14B1/00
Filed: 1945-08-08
Abstract: 596,962. Applying covers to rollers. DRONSFIELD, S. W.,'and DRONSFIELD BROS., Ltd. Aug. 8, 1945, No. 20258. [Class 80(iv)] In a roller ending machine, for securing the ends of a covering such as leather onto rollers for use in textile machinery, the rollers 2 are supported by a pair of chucks 3, 4 carried by arms 5, 9 adjustably secured to a shaft 7. The shaft 7 is adapted to be operated by a hand lever 15 or a treadle 19 to bring the rollers into contact with a rotating cylinder 20 whilst the ends of the covering are worked upon by a suitable tool. The arm 9 is pivoted at 10 and pressed by a spring pin 13 to enable the chuck 4 to be readily engaged with, and disengaged from, the roller. In the operative position the arm 9 is locked by a member 26 to prevent disengagement.
Patent GB-481255-A (GB)
Title: Improvements in or relating to magnetic amplifiers
IPC: H03F9/02
Filed: 1937-07-23
Abstract: 481,255. Non-contact-making relays. STANDARD TELEPHONES & CABLES, Ltd. July 23, 1937, No. 20432. Convention date, Aug. 20, 1936. [Class 40 (iv)] [Also in Group XL] A magnetic amplifier for impulses of opposite polarities comprises a single magnetic modulator comprising a single or pair of cores and having input windings, windings fed with A.C. of frequency considerably higher than any component in the input, and a pair of output windings each associated with a demodulator, the demodulators being oppositely poled. When two cores are used, each winding is carried by both. As shown in Fig. 1, two cores 10, 11 have windings 12, 13 fed from an A.C. source 17, e.g. of 2160# arranged to saturate the core during a portion of each half cycle, input windings 15, 16 connected to line 23 over network 19, and two sets of output windings 24, 25 and 26, 27 connected to windings 39, 40 of a receiving relay over oppositely poled half-wave metal rectifiers 28, 29. In the absence of signals, no current flows in the input or output windings but positive or negative impulses in the input give rise to a harmonic (1st even) in both input and output circuits. Network 19 in the input prevents passage of this harmonic to the line, prevents line impedance variations at the harmonic frequency from affecting the amplifier, and may shape the impulses and equalize the response of the amplifier to long and short impulses. The output wave is asymmetrical taking the form shown in Fig. 3A when the input is of one polarity and the reverse when the input is of the other polarity. After demodulation therefore, the current in one output circuit greatly exceeds that of the other depending on the direction of input, and relay winding 38 or 39 preponderates to move the armature to connect positive or negative battery to lead 42. The relay also has biassing and vibrating windings 37, 38. The relay windings are fed through a frequency discriminating equalizing network 32. The Specification gives an example of the values of components of the network. The output circuit may re-transmit over a line or may be connected to another amplifier in cascade, or the relay may be a three-position one to respond to a three element (+, -, o) code ; relay windings 37, 38 may be omitted. The modification shown in Fig. 2 comprises a modulator with a single core which is saturated only when impulses appear in the input circuit. In the absence of impulses, A.C. of the same frequency of the source 17 is induced in the output windings 53, 54, which may be a centre tapped winding, resulting in equal and opposite potentials being produced across resistances 60, 61 by the rectifiers 28, 29. The signals cause asymmetry in the output wave as previously described, and the potential across one or other of the resistances preponderates according to the polarity of the impulses. In both arrangements, the output currents react on the modulator and increase amplification.
Patent GB-1425762-A (GB)
Title: Copolymer dispersion
IPC: C08L31/04
Filed: 1973-04-30
Abstract: 1425762 Olefin-acrylate copolymer dispersions SUMITOMO CHEMICAL CO Ltd 30 April 1973 [28 April 1972] 20500/73 Heading C3P Aqueous dispersions comprise 1 to 300 parts by weight per 100 parts of water of a copolymer of (1) a C 3-20  olefin or cycloolefin, optionally substituted at a position other than a double bonded carbon atom with halogen atoms or cycloaliphatic or aromatic groups, (2) an acrylic ester and (3) 0 to 20 mole per cent of units derived from another ethylenically unsaturated monomer. The copolymer may be derived from propylene, butenes, pentene-1, 2-methyl butene- 1, hexene-1, 4-methylpentene-1, 2-methylpentene-1, octadecene-1, 4-phenylbutene-1, cyclopentene, norbornene-2, vinylcyclobutane or 2-methyl-4-chloropentene-1; methyl, ethyl, propyl, butyl, amyl, hexyl, 2-ethylhexyl, octadecyl, tolyl, benzyl, cyclohexyl, chloroethyl, vinyl, allyl, crotyl, butenyl, cinnamyl, cyclopentenyl, citronellyl, geranyl, norbornenylmethyl or chlorallyl acrylate; and optionally acryloyl halides, maleic anhydride, acrylic acid; and may have an alternating structure. The dispersion may be prepared by dispersing an inorganic solvent solution of the copolymer in water in the presence of a surface active agent and stripping off the solvent, optionally after adding a defoaming agent. The dispersion may be stabilized by adding a phosphate, ethylenediamine tetraacetic acid or salt thereof, thickener or protective colloid; and concentrated by creaming, centrifuging or stripping. Examples describe the preparation of dispersions by dispersing toluene solutions of (1 and 2) isobutylene/ethyl acrylate copolymer, (3) isobutylene/ethyl acrylate/acrylic acid copolymer, (4) isobutylene/ethyl acrylate/acryloyl chloride copolymer and (5) isobutylene/methyl acrylate/ crotyl acrylate/acryloyl chloride copolymer in water in the presence of sodium laurylbenzene sulphonate, sodium dialkyl sulphosuccinate, polyethylene glycol oleate, triethanolamine oleate or polyoxyethylene lauryl ether and stripping the toluene, the products being stabilized with sodium tetraphosphate, polyvinyl alcohol or sodium polyacrylate.
Patent GB-315269-A (GB)
Title: Improvements in or relating to mountings for pressure rollers in cinematograph apparatus
IPC: G03B1/42
Filed: 1929-07-04
Abstract: 315,269. I. G. Farbenindustrie Akt.- Ges. July 10, 1928, [Convention date]. Kinematograph apparatus.- Pressure rollers are carried by a member which is forced into open position by a spring and is held in working position by a locking device. As shown, two pairs of rollers 2 co-operate with a sprocket 7, each pair being carried by a holder 1 pivoted at 3 and urged away from the sprocket by a spring 5. Pins 9 on leaf springs 8 engage lugs 11 on the holders 1 to keep the rollers in a working position, which is slightly spaced from the sprocket. The pins 9 are cut so that the holders can pass them when moved towards the sprocket. Push buttons 10 are provided on the springs to enable the pins 9 and lugs 11 to be disengaged, and to form stops which limit the movement from the sprocket.
Patent GB-811575-A (GB)
Title: Improvements in and relating to apparatus for mixing, grinding, mincing, washing and other similar operations
IPC: A22C7/00
Filed: 1955-07-15
Abstract: 811,575. Batch mixing apparatus. ARSAN, N. T. July 15, 1955 [July 18, 1954], No. 20576/55. Class 86 [Also in Groups I, VI, VIII and XXIII] Apparatus for use as a mixer, grinder, masher, mincer, cooker or washer comprises a pressure proof container, which can be heated, having, inside, a plurality of perpendicular rows of projections for supporting sieves or trays and provided with a removable lid, a safety valve or pressure regulator, and a removable shaft supporting an adjustable stirring, cutting or grinding implement for rotation within the container. As shown, a metal heat insulated pressure-proof vessel 7 has a closable outlet 8 at the bottom and below the detachable lid 9 two openings 10 and 11 to which may be connected tubes or pipes. At the bottom of the container there is a bearing 12 for a rotatable removable shaft 13 to which are attached stirrers or agitators which shaft passes through an opening 30 in the lid 9 which contains a pressureproof packing and can be closed by a small lid. The lid 9 has hinged side parts and a centre part which supports the driving mechanism for shaft 13. This mechanism comprises a frame 15, gear wheels 17 and 18 reversibly turned by a handle 16, motor and belt, or pedals and gearing. Three or more rows of teeth 14 are provided for supporting sieves or trays. A perforated paddle may be used for mixing or frames 26 may be attached to shaft 13 carrying horizontal and vertical knives 27, 28 Fig. 2 or oblique knives. Two or more perforated sieves may be provided the lower sieves having smaller perforations than the uper ones and the stirrers being interrupted so that they rotate between the sieves. Food may be cooked under pressure and mixed in annular pots 78, 84,, 85, Fig. 11, supported on shelves 75, 76 whose contents are stirred by paddles 82 carried on adjustable arms turned by shaft 13.
Patent GB-168868-A (GB)
Title: Improved burner for metaldehyde
Filed: 1921-08-03
Abstract: 168,868. Elektrizitõtswerk Lonza. Sept. 4, 1920, [Convention date]. Open-tray and like burners.-The parts of a metaldehyde burner liable to become heated are liquid-cooled. In Fig. 1, the solid fuel B is shown mounted on a hollow support A containing water, glycerine adqueous solution, &c In order to allow for expansion of the liquid the support may be provided at the top with an aperture a or it may be only partially filled with liquid, thus leaving an air space or cushion C in its upper part, or both the aperture and air cushion may be provided. Fig. 2 shows the metaldehyde arranged in a protecting-sheath b forming part of the supporting-vessel A and pressed upwardly by a spring D against a wire E secured to the vessel A. The Specification as open to inspection under Sect. 91 (3) (a) states that the burner can be used for other solid fuels such as solidified spirit. This subject-matter does not appear in the Specification as accepted.
Patent GB-1371567-A (GB)
Title: Floodlighting system and spotlights therefor
IPC: F21V29/02
Filed: 1972-05-03
Abstract: 1371567 Operating theatre lamp ORIGINAL HANAU QUARZLAMPEN GmbH 3 May 1972 [6 May 1971] 20676/72 Heading F4R A spotlight for an operating theatre comprises a circuit for the passage of coolant, the circuit being such that the ambient atmosphere cannot enter the circuit. An elliptical dichroic reflector 60 and a Fresnel lens 78 are provided for producing a parallel beam. The beam passes through one or more heat filters 76 mounted on a holder (70, Fig. 3, not shown) and an etched or sandblasted cover-plate 112. The holder (70) is detachable from the hamber 104. Compressed air is introduced at 44 and flows upwardly and helically past fins 56 of the housing 50 before entering the upper part of chamber 104. The coolant flows down through holes (82) in a plate (80) held against the reflector 60 by springs (90), around the filter 76 and out through 46. Between the outer covering 42 and the housing 50 there is heat insulating material 48. The chamber 104 may be slid up and down by means of a knurled nut 126 rotating in the thread of a bushing 118. In an operating theatre a plurality of the lamps 30 may be tiltably mounted on a curved member 34. The member 34 being pivoted to a forked member. More than one lamp may be mounted on the cross-member 32. (For Figures see next page.)
Patent GB-721786-A (GB)
Title: Method of and apparatus for producing films
IPC: B29C71/00
Filed: 1952-08-19
Abstract: <PICT:0721786/IV (a)/1> <PICT:0721786/IV (a)/2> Film-forming material is extruded through a plurality of nozzles into a coagulating liquid so as to form a plurality of films; the at least partially coagulated films are withdrawn from the liquid, positioned together with their adjacent surfaces in contact with each other and passed through treating liquid; portions of the films are separated a plurality of times as they pass through the treating liquid and successive separated portions of one of the films are directed through a path of greater length than that of the path of corresponding successive separated portions of an adjacent film while passing through treating liquid or a succession of treating liquids; and the films are then again positioned with their adjacent surfaces in contact with each other.  Means may be provided for adjusting a separated portion of one of the films laterally relative to the separated portion of an adjacent film so as to align the separated portions in superposed relationship.  The films may be obtained from viscose; from aqueous solutions of cellulose in inorganic or organic solvents such as zinc chloride solution, cuprammonium hydroxide or organic amines; from gelatine or casein solutions; from solutions of water-soluble or alkali-soluble cellulose ethers; or from solutions of water-soluble polyvinyl acetate or polyvinyl alcohol. As shown in Fig. 1, film-forming material is extruded through nozzles 66, 67 into baths 62, 63, and the partially coagulated films A, B are passed over guides 68, 69 and directed together through successive coagulating and/or regenerating, washing, desulphurizing, bleaching and softening baths 80-85.  The films are directed together, with their adjacent surfaces in contact, into bath 80 around rollers 70-72.  They are then separated, film B passing directly to roller 74 while film A first travels over roller 73 and then to roller 74.  The films pass together to roller 75 and are again temporarily separated by the wiper device K before being brought together at roller 76.  The wiper device K has wiper blades which remove excess liquid from the inner and outer surfaces of each film.  The films pass through baths 81, 82 in a similar manner, the film A having a longer path to travel than film B.  As the films pass through baths 83-85, they are separated at intervals so that film B has the longer path to travel; thus film A travels directly to roller 78 while film B travels first to roller 77 and then to roller 78.  Excess liquid is removed by wipers K.  To ensure that the films will be maintained in alignment, an adjusting device L is provided at one or more places of separation to adjust the upper film in a lateral direction relative to the lower film.  As shown in Fig. 2, the adjusting device comprises a roller 42 over which the upper film is directed.  The bearing at one end is pivotally mounted in a block 43 so that a bearing 44 at the other end may be moved up or down in guide-block 45 by a screw 46.  The upper film will move towards the higher end of roller 42.
Patent GB-376508-A (GB)
Title: Method of constructing the stator of electrical machines
IPC: H02K15/02
Filed: 1931-07-21
Abstract: 376,508. Dynamo-electric machines. EVANS, W. E., 27, Chancery Lane, London. -(Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) July 21, 1931, No. 20869. [Class 35.] Frames ; cores.- The laminations b of a stator are assembled on a mandrel a and the frame built up round them the mandrel a being provided with centring holes h so that it can be placed in a lathe and the surfaces of the frame machined. The frame consists of rings f welded to bars g which are recessed to fit over the pressure plates c forming the ends of the core.
Patent GB-1275023-A (GB)
Title: Improvements relating to omnibuses
IPC: B60H1/00
Filed: 1971-04-19
Abstract: 1275023 Omnibuses DAIMLER-BENZ AG 19 April 1971 [12 Feb 1970] 20900/71 Heading B7B An omnibus has front and rear roll-over bars 1 and 2 formed by hollow members connected by hollow members 3 located adjacent the roof edges. The bars 1 and 2 are supported on the framework or underframe of the vehicle. The bars 1 and 2 have air inlets 5, 6 for interior ventilation or for supply to outlets adjacent the rear window to reduce the amount of dirt deposited thereon.