baber/WOPTO huggingface dataset:
Patent GB-1155886-A (GB)
Title: Flow Control For A Multiple-Effect Evaporator
Inventor: MOJONNIER HARRY GRINDLEY
IPC: B01D1/00
Filed: 1966-09-30
Abstract: 1,155,886. Evaporators, multiple-effect type. MOJONNIER BROS. CO 30 Sept., 1966. No. 43861/66. Heading B1B. [Also in Divisions G1 and G3] In a multiple-effect evaporator for concentrating liquids, such as milk, the feed liquid is delivered via line 68 (Fig. 1) to a tank 70 from which it is delivered by pump 72, constant flow unit 74 and pump 76 to a preheater 38. From the latter the liquid passes via a regenerative heater 52, final heater 60 and holding tube 78 to the inlet valve 82 of a first evaporator effect, which is of the flash/falling film type. Partial or complete recirculation to tank 70 is permitted .by valve 80. The concentrate from the first effect passes to a sump 34 therebelow from which it is delivered by pump 86 to the second effect. There are four such evaporators effects, and the final concentrate is discharged via line 20 whilst the steam and vapours are condensed at 18 after flowing through preheater 38. The steam supply to the first and second evaporators effects is from a thermo-compressor 66 and there is a supply at 64 to heater 60. The condensate from heaters 38, 60 and from the evaporators passes via line 50 to heater 52. Valve 94 allows recirculation of the final concentrate. The flow control unit 74 maintains a constant adjustable flow (see Division G2-3). Feed line 68 leads from tank 152 (Fig. 2c) which is supplied by line 176. The latter includes a valve 180 which is controlled by a float-operated pilot Valve 178 in tank 152 to maintain a constant level in the latter. When the system requires cleaning, water from tank 156 (with acid from tank 166) is supplied to tank 152 and is circulated through the heaters and evaporators, unit 74 being adjusted to allow a large flow rate of water. Valve-controlled sprays (194) are located at strategic points in the evaporators to ensure adequate cleaning.
Patent GB-1532228-A (GB)
Title: Spark gap and discharge path arrangement for a television picture tube or other cathode ray tube
IPC: H04N9/20
Filed: 1975-10-24
Abstract: 1532228 Spark gaps RCA CORPORATION 24 Oct 1975 [29 Nov 1974] 43883/75 Heading H1X [Also in Division H4] C.r.t. apparatus for protecting signal processing circuits from flashovers between electrodes (see Division H4) may include a tube socket with terminals 418 and 420 for receiving the pins associated with low voltage and high voltage focus electrodes respectively, conductive elements 428 spaced from ring segment 426 to form spark gaps, and spark gap 432 which may be sealed, or as in Fig. 3 (not shown) to provide operation independent of pressure. Other arrangements for terminals 418 are disclosed by reference to publications. An alternative arrangement is described with respect to Fig. 5 (not shown) in which the socket is mounted on a printed circuit board and resistors 528 and 532 provide over-voltage and limit arc current.
Patent GB-1279391-A (GB)
Title: Pressure indicators
Inventor: SPENCER JOHN EDWIN HOWARD
IPC: G01L7/08
Filed: 1968-09-18
Abstract: 1279391 Pressure gauges VOKES Ltd 9 July 1969 [18 Sept 1968] 44422/68 Heading G1C In a pressure gauge a permanent bar magnet 16 is attached to the underside of a transparent plate 15 and arranged perpendicularly to the longitudinal axis of the gauge and a second bar magnet 27 is disposed perpendicular to the longitudinal axis of the gauge but is angularly displaced around the axis relative to magnet 16 and attached to a disc 25 attached to a diaphragm 20 and the arrangement is such that displacement of the disc 25 due to a difference between a high pressure through a line 31 and a lower pressure through a line 32 causes the magnet 14 and disc 13 to rotate to take up a position dependent on the lines of flux and the distance between the magnets 16, 27.
Patent GB-1082472-A (GB)
Title: Apparatus for feeding sheets to a processing apparatus
Inventor: WOODCOCK EDWARD CECIL
IPC: G03D13/00
Filed: 1963-11-11
Abstract: 1,082,472. Feeding sheets. WILLIAMSON MANUFACTURING CO. Ltd. Feb. 11, 1965 [Nov 11, 1963], No. 44488/63. Heading B6B. In apparatus for processing sheets of film or photographic paper, the sheets 23 are placed in a vertical compartment having a top 14, rear wall 13, and front wall 12 so that their bottom edges lie between flaps 18 separately mounted on hubs 21 which are rotatable about a shaft 19. As each flap 18 is released by an escapement device 24, it swings clockwise under gravity about the shaft 19, and a sheet 23 falls on to a guide plate 33, and is fed by powerdriven rollers 34 to the processing station. The lower end of the front wall 12 and the upper ends of the flaps 18 overlap each other, but have complementary cut-outs to allow the flaps to swing freely past the wall: similarly, the inner end of the guide 33 is cut out to allow the free passage of the flaps. When all the sheets have been fed, the flaps 18 are manually swung into their initial upper position to receive a new batch of sheets. The escapement device comprises a slotted hollow cylinder 24, Figs. 2 and 3 (not shown), which can be oscillated, on an axis parallel to the shaft 19, through a right angle by an arm 26 linked to a solenoid 27, and an outer corner of each flap 18 can rest, in turn, in the slot 28 of the cylinder 24. The cylinder 24 is rocked automatically to release a flap 18 and a sheet 23 when the trailing end of the previous sheet has passed a switch 35 in the circuit of the solenoid 27: initially, the escapement is operated by depressing manually a starter switch. In order that a sheet may be fed into the processing station in an emergency without going through the storage compartment 12- 13, an open-topped passage is arranged between the front wall 12 and another wall 37, this passage opening directly over the guide plate 33. A selector switch 38, Fig. 4 (not shown), outs out the action of the escapement device 24, and the previous sheet operates a signal 39 instead of the solenoid 27. In a modified circuit, Fig. 5 (not shown), a second solenoid 41 can operate the escapement device 24 during the introduction of an emergency sheet. An interlocking switch control 42 leaves the switch 35 open but actuates a selector switch 43 which connects the switch 35 to the solenoid 41.
Patent GB-1089339-A (GB)
Title: Improvements in or relating to multiplicative mixing with transistors
IPC: H03D7/12
Filed: 1964-11-02
Abstract: 1,089,339. Transistor mixing circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Nov. 2, 1964 [Nov. 5, 1963], No. 44547/64. Heading H3T. A multiplicative mixing circuit comprising two transistors T 1 , T 2  has a first signal source, having an impedance which is low. relative to the input impedance between the base electrodes, connected between the base electrodes and a second signal source, having an impedance which is high relative to the input impedance at the emitter electrodes, connected to the emitter electrodes which are interconnected for signal purposes such that the mixing product is obtained from at least one of the collector circuits of the transistors. Fig. 2 shows a self-oscillating mixer, in which input signals from L 1  pass to the base electrodes and an oscillator output from L 2 , is applied to the emitter electrodes via capacitor C 8  and resistor R 6 . The I.F. output is obtained from L 4 . The amplification of the mixer stage can be controlled by an A.G.C. voltage U R  applied at AB to the base of T 2 . Negative feedback is provided by resistors R 3 , R 4  which together with R 5  and potential divider R 1 , R 2  provide the working point for the transistors. The oscillator coil L 2  may have a separate primary and secondary winding and a diode (D) may be connected to this coil to limit the amplitude of oscillation of the oscillator output to limit distortion (Figs. 3 and 4, not shown). Alternatively a separate oscillator may be used. Also the mixer could be used for amplitude modulation or measuring purposes.
Patent GB-1458637-A (GB)
Title: Partition
IPC: E04B1/86
Filed: 1974-10-15
Abstract: 1458637 Laminates ANTI-SOUND AB 15 Oct 1974 [18 Oct 1973] 44670/74 Heading B5N [Also in Division E1] A sound-insulating partition element comprises a core sheet 1 of lead having a thickness of 0À1-1 mm. having glued to each surface thereof a layer of porous and resilient material 4, 5, to the external surfaces of which are glued panels 8, 9. The porous and resilient material 4, 5 may be of non-rigid foamed plastics material, e.g. PVC or polyurethane, foamed rubber or mineral wool. Panels 8 and 9 may be of plasterboard, particle board, mineral fibre board, fibreglass web or plastics sheet laminates. Bending-resistant, abrasion-resistant or fireprotecting layers 10, 11, e.g. of aluminium, steel or a plastics sheet laminate, may be glued to building boards 8, 9. A plurality of rectangular partition elements may be assembled between floor and ceiling, each pair of the elements A, B being jointed together by means of an H-profile 14, e.g. of extruded aluminium or aluminium alloy or of hollow form produced by bending strip steel, extending substantially along the whole length of the meeting edges of the two partition elements, the web 15 of the H-profile being oriented coplanar with the meeting edges of the respective pairs of panels and engaging with its four flanges 18, 19, 20, 21 corresponding grooves 22, 23, 24, 25 provided in the two end faces of the respective pairs of panels.
Patent GB-964795-A (GB)
Title: Means for automatically supplying charging material for smelting furnaces
IPC: G01G21/00
Filed: 1960-12-30
Abstract: 964,795. Weighing-apparatus. ZAVODY V.I. LENINA PLZEN NARODNI PODNIK. Dec. 30, 1960 [Jan. 14, 1960], No. 44739/60. Heading G1W. [Also in Division B8] Means for automatically supplying charging material to smelting furnaces comprises a hopper 1, a trap door 5 in the hopper, catch means 13 arranged on the hopper for holding the trap door in the closed position until the hopper is to be discharged, remotely controlled means 20 for releasing the catch means and means 8 for damping the movement of the trap door so that, when the catch is released, the weight of material in the hopper opens the trap door, which closes when the contents have been discharged, the damping means regulating the time interval during which the trap door remains open. The hopper 1 is suspended through springs 2 from the lever system 3 of a weighing maching. The lever system may have a link connection by which it interrupts its suppy to the weighing machine when a predetermined quantity has been supplied to the hopper. The remotely controlled means 20 is an electromagnet which, when energized, raises a bar 18 and this movement forces a wedge 19 out of a recess 23, against the action of a spring 21, and turns a lever 16 whereby, through a link 15, the catch 13, which is in the recess 23, being unlocked, is rotated to release a bolt 11 and allow the door 5 to open. Linkage 10 connects the door 5 with a piston-rod, the piston of which, descending as the door opens, forces oil through a wide opening into a storage space until, near the end of its descent, it covers the opening and oil can then escape only through a port, the size of which is adjustable, against a spring-loaded valve, thus giving the required damping means.
Patent GB-1018354-A (GB)
Title: Gas lubricated recording transducer assembly
IPC: G11B5/60
Filed: 1964-11-03
Abstract: 1,018,354. Supporting magnetic recording &c. heads. GENERAL PRECISION Inc. Nov. 3, 1964 [Dec. 18, 1963], No. 44806/64. Heading B5R. A head-shoe 10, resiliently mounted by a bifurcate spring 18 as in Specification 999,712, has a step 24 in the shoe and the head is mounted astern of the step in a projection of the plane of the Bernouilli surface 26, close to the nominal point of intersection 36 of the projection with the surface of a disc record 20. The shoe is initially in contact with the disc when at rest, but the action of the airfoil section 32 at the leading end of the shoe lifts the shoe from the dotted-line to the solid-line position of Fig. 3 at some 5% of normal running speed, minimizing wear. Only a light spring pressure is necessary to maintain the shoe stably in the operative position, but all parts of the Bernouilli surface 26 will then be too far from the record surface for effective operation of a head mounted in the surface 26; the mounting of the head astern of the step 24 secures a desired head/disc spacing. To support multiple heads with a single shoe would involve excessive spring pressure and hence starting wear, so an arrangement is described (not in detail) in which two shoes 10 are mounted on a boom, catamaran-fashion, the row of heads being mounted on the boom astern of the shoe.
Patent GB-1521727-A (GB)
Title: Force transducer for sensing transverse forces
IPC: G01L5/10
Filed: 1975-10-30
Abstract: 1521727 Force transducers ASEA AB 30 Oct 1975 [3 Dec 1974] 44929/75 Heading G1N A magneto-strictive transducer for measuring the horizontal component Fh, Fig. 3, of the force exerted on a pulley 11 by a strip 13 comprises two parallel members 1, 2 supported by leaf-springs 3, with a load cell 4 rigidly attached between them. The cell carries two perpendicular windings at its centre where the core plate 4 is subjected to shear stress only. The leaf-springs may be replaced by rigid sides 14, Fig. 4, connected to the members 1, 2 by flexible joints 15, and the core plate 4 is attached to the surrounding parts on all four sides. The coil windings may be replaced by strain gauges.
Patent GB-1026868-A (GB)
Title: Improvements in or relating to electric moving coil relay arrangements
IPC: H01H53/015
Filed: 1962-11-28
Abstract: 1,026,868. Electromagnetic relays. SANGAMO WESTON Ltd. Nov. 28, 1962 [Jan. 12, 1962], No. 45041/62. Heading H2B. In a moving coil instrument type relay having contacts 21, 35 which complete the circuit of a second winding to increase the contact pressure, an initial increase in contact pressure is attained by the provision of a permanent magnet 31 and magnetic plate 32 which attract a magnetic member 20 on the movable assembly 10 only when the preset operating deflection is attained. The members 31, 32 are carried on a non-magnetic arm 24 co-pivotal with the assembly 10 and the setting can be adjusted by rotation of the arm 24 by a slotted link 27 engaging a pin 25 on the arm 24. When the member 20 passes behind the plate 32 (Fig. 3), the permanent magnet flux is diverted to the former and the contact 21 is urged against the spring contact 35. The aiding torque of the second winding moves the member 20 beyond the magnet 31 so that on de-energization of the coil both the magnet and the bias of the contact spring 35 tend to separate the contacts.
Patent GB-1427639-A (GB)
Title: Methods of packing
IPC: B65D75/20
Filed: 1973-09-26
Abstract: 1427639 Packages SONY CORP 26 Sept 1973 [29 Sept 1972] 45043/73 Heading B8C In a method of shrink-wrapping an article, an external strip 11 of film is temporarily secured round the loosely wrapped article, the wrapping film 8 is sealed, and the package is then heated to shrink the packing film 8, and to heat-fuse the strip 11 on the wrapping to serve as a tearstrip. The films may be a polyester such as polyethylene, and may be of different materials.
Patent GB-1272195-A (GB)
Title: Control valves for fluid control circuits or systems
IPC: F16K31/68
Filed: 1970-09-22
Abstract: 1,272,195. Valves. BEHR-THOMSON DEHNSTOFFREGLER G.m.b.H. 22 Sept., 1970, No. 45074/70. Heading F2V. [Also in Division F1] In a valve for an automatic control system a piston 3 of a thermostat 1 displaces against a spring 4 a slide 7 having attached thereto a seal 8 with a resilient lip 9 to control flow between ports 10, 20, 19. In use port 20 is connected to an I.C. engine vacuum ignition timing mechanism, port 19 to the source of vacuum and port 10 to atmosphere via sieve 23 and port(s) 22 while the thermostat is included in the cooling medium. In the position shown, the resilient lip engages the bore of the cylinder 5 to cut off the vacuum from port 20 which is connected to atmosphere. When the temperature of the cooling medium falls, the thermostat allows the lip 9 to abut the insert 27 and cut-off the communication between ports 10, 20 while allowing the port 20 to communicate with port 19 and the source of vacuum. Ports 19, 20 may extend axially from the end of housing 26.
Patent GB-1373347-A (GB)
Title: Triazenoimidazoles
IPC: A61K31/415
Filed: 1971-09-29
Abstract: 1373347 4-Triazenoimidazoles BEECHAM GROUP Ltd 12 Sept 1972 [29 Sept 1971] 45309/71 Heading C2C Novel 4-triazenoimidazoles of the general formula wherein R 1  is an optionally substituted methyl or thiol group, R 2  is an amino or substituted hydroxyl group, R 3  is a methyl or (3-chloroethyl group, R 4  is an optionally substituted hydrocarbon group and R 5  is a hydrogen atom, and salts, tautomers and solvates thereof are prepared by reacting an amine of the general formula HNR 3 R 4  with a diazo compound of the general formula wherein R 8  is a negative charge (obtained by reacting compounds of the general formulae R 2 COCH(NH 2 )CN and C 6 H 5 CH 2 S(R 1 )C=NH.- HCl and treating the resulting amine of the general formula or an acid addition salt thereof with nitrous acid or with a nitrite salt or ester and an acid capable of liberating nitrous acid therefrom). Pharmaceutical compositions having antitumour, antifungal and antibacterial activity comprise, as active ingredient, a 4-triazenoimidazole of the first general formula above or a salt, tautomer or solvate thereof, together with a pharmaceutically acceptable carrier.
Patent GB-1424246-A (GB)
Title: Protective shield
IPC: F16P1/02
Filed: 1973-09-27
Abstract: 1424246 Shields: shields GOODYEAR AEROSPACE CORP 27 Sept 1973 [27 Oct 1973] 45361/73 Headings F3C and F3X A safety shield is made of polyurethane having a thickness of _¥ inch and capable of passing a 0À45 calibre 230 grain metal ease projectile test. In an embodiment a clipboard base member 10, Fig. 1, has a clip member 11 pivotally mounted thereon. In another embodiment a windshield 13, Fig. 2, is mounted on a motor bicycle by brackets 14. Samples of the polyurethane are subjected to the projectile test. Each sample is secured to a test-frame and the firing distance is two feet. Preparations of polyurethanes are described in the Specification.
Patent GB-1130724-A (GB)
Title: Improvements in or relating to control means for space heat-conditioning apparatus
IPC: H01H37/56
Filed: 1965-10-26
Abstract: 1,130,724. Control arrangements for heating and cooling apparatus. HONEYWELL, Inc. Oct. 26, 1965 [ Oct. 26, 1964], No.45372/65. Heading G3R. [Also in Division H1] A thermostat 10, which comprises a bimetal strip 11, anticipation heater 42 and mercury switch 13 and which is connected by conductors 40, 50 to a relay 30 controlling space heating apparatus, is modified to control cooling apparatus when this is added to the heating installation. Conductors 40, 50 are dispensed with and a sub-base 54 is electrically and physically connected to the thermostat 10, which is then connected to the heating and cooling control relays 30, 85 through conductors 71, 80, 93. A switch 55 in sub-base 54 provides selective control of either of relays 30, 85 and an anticipation heater 64 controls the bimetal 11 when the thermostat 10 is controlling the cooling apparatus. To facilitate modification of the thermostat, the switch 13 is provided with two pairs of contacts 14, 20 and 15, 20 which control thermostat operation.when in the cooling and heating mode respectively. Various constructions of the sub-base are described, Figs. 2 to 5 (not shown) designed to provide heat transference between members 11, 64 by conduction, convection or radiation.
Patent GB-1354639-A (GB)
Title: Triplet lens
IPC: G02B9/12
Filed: 1972-10-02
Abstract: 1354639 Triplet lens EASTMAN KODAK CO 2 Oct 1972 [1 Oct 1971(3)] 45405/72 Heading G2J  A lens having a reduced secondary spectrum e.g. for use in pointers, comprises a front positive doublet, a middle negative component, and a rear positive doublet, the inequality:- being satisfied, where P 3  and V 3  are the partial dispersion and AbbÚ number of the middle component, and P m  and V m  are the mean equivalent partial dispersion and mean equivalent AbbÚ number of the two doublets. Partial dispersion refers to the g line of Hg, and is defined by:- In Fig. 2, the required inequality is the slope of the line O on which the point 22 is P m , V m , the points 14, 20 the equivalents respectively of the front and rear doublets, and the points 10, 12, 16, 18 the co-ordinates of the elements (1, 2, 4, 5) forming the two doublets. Equivalents are calculated from formulae involving focal lengths. Optical data are given in thirteen examples.
Patent GB-1360427-A (GB)
Title: Bleaching bath compositions
IPC: C11D17/00
Filed: 1971-09-30
Abstract: 1360427 Activator compositions HENKEL & CIE GmbH 30 Sept 1971 [1 Oct 1970] 45465/71 Heading D1P [Also in Division C5] A pulverulent to granular activator for a bleaching or bleach-washing comprises an activator for H 2 O 2  or percompounds which form H 2 O 2  in aqueous solution in the form of particles which are surrounded with a coating of a water-soluble and/or water insoluble substance inert to the activator. The coating substance may be a water-soluble salts able to crystallise with water of crystallisation e.g. carbonates, ortho-, pyro- and poly-phosphates and sulphates of alkali metals and water insoluble substances e.g. fumed silica, magnesium oxide, magnesium silicate, tin oxide, tin silicates, titanium dioxide, and polyethylene and polypropylene powders. The solid coating substance is applied to the particulate activator which has previously been wetted with water or an aqueous solution or dispersion of carboxymethylcellulose, methyl- or hydroxy ethyl cellulose, gelatin, casein, agg albumen, ground nut or soya bean proteins, dextrins, tragacanth, pectin, agar agar, alginates, water-soluble alkali metal silicates, the aforementioned water soluble salts able to crystallise with water of crystallisation and non-ionic surfactants, e.g. fatty alcohol- and alkyl aryl-polyglycol ethers, ethylene oxide propylene oxide polymers, polyethylene glycols and polyvinyl alcohols. The other constituents of the composition are as described in Specification 1354583.
Patent GB-1439205-A (GB)
Title: Optical glass
IPC: C03C3/068
Filed: 1973-10-01
Abstract: 1439205 Optical glass CARL-ZEISS-STIFTUNG [trading as JENAER GLASWERK SCHOTT & GEN] 1 Oct 1973 [2 Oct 1972] 45822/73 Heading C1M An optical glass has SiO 2  and B 2 O 3  contents such that the following relationship, in which the contents are expressed as equivalent percentages holds also contains: (a) at least 5 equivalent percent of fluorine as a replacement of the corresponding amount of oxygen in the glass; (b) at least 29 equivalent per cent of a component chosen from La 2 O 3 , Y 2 O 3 , ThO 2 , ZrO 2 , BaO, MgO, SrO, CaO, ZnO, Ta 2 O 5  and Nb 2 O 5  or a mixture of two or more of them; (c) 0-8 equivalent per cent of a component chosen from PbO, CdO, Al 2 O 3 , TiO 2 , MoO 3  and WO 3  of a mixture of two or more of them; and (d) 0-2 equivalent per cent of As 2 O 3 , Sb 2 O 3 , NaCl, NH 4 NO 3 , alkali metal silicofluoride or other refining agent, and one or more compatible ingredients, if any. The term "equivalent" is used to denote the weight in grams of an oxide which contains 1 gram atom of oxygen. Preferably the composition comprises, expressed in per cent by weight, 20-26% SiO 2 , 2-8% B 2 O 3  with the condition that the total of SiO 2 +B 2 O 3  is 26-31%, 20-38% BaO, 20-32% La 2 O 3 , 0-18% ThO 2 , and F 2 O- 2-7%. The symbolism F 2 -O 2-7 % by weight means that in a fictitious purely oxidic glass so much oxygen is to be replaced by 2 fluorine that the increased weight amounts to 2-7 gm. per 100 g. of oxidic glass.