baber/WOPTO huggingface dataset:
Patent GB-463668-A (GB)
Title: Improvements in traffic control systems
IPC: G08G1/08
Filed: 1935-10-04
Abstract: 463,668. Road signals for controlling traffic. AUTOMATIC SIGNAL CORPORATION. Oct. 4, 1935, No. 27511. Convention date, Oct. 19, 1934. [Class 118 (ii)] In a road traffic control system the right-ofway period comprises a number of small intervals of time each of which has a minimum value and is capable of extension in accordance with traffic flow during that small interval, the extension of one interval in a right-of-way period having no effect on the subsequent intervals in that period. The timing control comprises a uniselector stepped by a timing device, the uniselector altering the signal circuits and the circuits to the timing device. The invention is described as applied to a system in which pads and pedestrian buttons are provided in the side road only. In the Figure the uniselector is in position 2, the main road green lamp 65 and the side road red lamp 69 are lit and the timing condenser 20 is charging over resistance 30 and wiper 80. When the condenser is charged lamp 21 flashes and relay 22 energizes. Magnet 6 operates to step the switch. Condenser 20 is discharged over contact 87 of magnet 6 so that when relay 22 and magnet 6 fall away condenser 20 again commences to charge and the cycle is repeated. When the switch reaches position 5, if the arm of resistance 31 is at " OFF " the switch waits for a call from the side road. Otherwise condenser 21 charges slowly over resistance 31 and eventually gives right of way to the side road. In either case when a call is registered from the side road on either road pad N or press-button P, relay 90 operates and locks over wiper 81 so that resistance 32 replaces resistance 31 in the charging circuit of condenser 20 and the switch is stepped to position 6. Relay 45 is energized over wiper 83 to replace the green by the amber lamp 64 on the main road, and the amber period is timed over resistance 33. When the relay 22 next energizes the switch steps to position 7 and right-of-way is given to the side-road. In this position, and in the next three positions 8, 9, and 10, the condenser 20 is normally charged through the minimum timing resistance 36. If, however, either pad N or button P is operated, the relay 90 is energized and locks, until magnet 6 next energizes, the minimum resistance 36 being replaced for the remainder of that stepping period by the maximum resistance 34. In position 11 the timing is controlled by resistance 35. Should a call be registered during this period relay 90 energizes and locks over bridging wiper 81 so that the right-of-way is returned to the side-road without a further demand being made. The switch steps to position 1, in which amber is given to the side road and then to position 2 where the cycle described above re-commences. Specification 360,924 is referred to.
Patent GB-1392074-A (GB)
Title: Injection mould for an injection moulding machine for manufacturing two-component plastic objects
IPC: B29C45/16
Filed: 1972-06-13
Abstract: 1392074 Two component injection moulding K HEHL 13 June 1972 [16 June 1971] 27527/72 Heading B5A An injection mould for a two component plastics article comprises a stationary mould half 1 having hollow inserts 8, 40, a movable mould half 19 carrying cores 21, 20, the inserts and cores, co-operating to form first cavities for moulding the first component part of the articles and second cavities for moulding the second component on to the first to complete the articles, and a transporting plate 9 movable relative to both mould halves in the mould closing direction and rotatable about an axis parallel to this direction for transporting the first component parts from the first to the second cavities. The transport plate 9 is mounted on one end of a shaft 15 which can rotate and slide through a central passage in the movable mould half. The shaft 15 has two opposed helical grooves 17, 18 engaged by pins 24, 25 mounted in the movable mould half 19 and urged into the grooves by springs 30. In use the mould assembly is closed, a first material injected through sprue 5 and a second material injected through sprue 6 on to already formed first parts. As the mould is opened the transport plate 9 travels with the mould half 19 until shaft 15 is arrested by abutment 39, whereupon it is separated and is rotated through 180 degrees by the pins engaging the helical grooves. The completed articles fall from the mould as cores 21 are withdrawn, but the past articles are held by recesses 1011 in the transport plate. The sprue 5 is retained by a portion which enters a recess 14 until an ejector pin 13 in shaft 15 is operated by striking abutment 39. Sprue 6 is retained against transport plate 9 by the tips of pins 12 which enter the sprue, but falls away when the pins 12 are withdrawn through passages 11. When the mould is closed again the pins 24, 25 slide down straight groove sections 44 which join opposite ends of the two helices, thus the transport plate 9 does not rotate.
Patent GB-321510-A (GB)
Title: Improvements in and relating to valve apparatus
IPC: F16K15/14
Filed: 1928-09-25
Abstract: 321,510. Hall & Son, Ltd., T., Castle, H., and Garrod, C. E. Sept. 25, 1928. Check elastic valves for use in reciprocating compressors of refrigerating machines &c. comprise plates or strips of spring steep or other resilient material loosely held at their ends in annular grooves in which they may work round to distribute wear &c. In the form shown, a resilient strip d with its ends sprung into an annular groove e in the piston a closes the inlet port c whilst the outlet port p is closed by a similar strip h with ends located in an annular recess between the cylinder end k and a ported cap m with a concave face to permit the plate to flex. The plates may be interchangeable.
Patent GB-887344-A (GB)
Title: Improvements in or relating to the manufacture of organic halogen compounds
Inventor: MURAY JAN
IPC: C07C17/20
Filed: 1959-08-12
Abstract: Fluorine-containing organic compounds are prepared by reacting chlorine tri- or monofluoride or both these compounds consecutively, at elevated temperature in the vapour phase with a halogen-substituted hydrocarbon, none or not all of which substituents are fluorine.  Paraffinic or olefinic hydrocarbons such as chlorofluoromethanes, ethanes and propanes and perchloroethylene and hexachloropropene are used and the vapours are preferably passed through one or more heated reaction tubes, e.g. of nickel packed with nickel turnings with electric heating. The product vapours are cooled and scrubbed with sodium chloride and aqueous alkali, condensed and fractionated.  In a modification the hydrocarbon is first chlorinated to substitute any hydrogen by chlorine.  Examples describe the treatment of perchloroethylene, trichlorotrifluoroethane, trichlorodifluoroethane, and dichlorodifluoromethane.  The fully halogenated products are useful as refrigerants, aerosol propellants and solvents.  Specifications 738,289, 774,737 and 878,585 are referred to.
Patent GB-746162-A (GB)
Title: Filters for filtering foreign bodies from gas streams
Inventor: HOFSTETTER HERMANN
IPC: B01D46/26
Filed: 1954-09-23
Abstract: 746,162. Gas filters. SULZER FRERES SOC. ANON. Sept. 23, 1954, No. 27584/54. Class 8(2). A gas filter comprises a pervious web 4 e.g. of paper continuously transferred from a spool 5 to a spool 6 by frictional engagement with the perforated cylindrical surface 2 of a rotary drum. In operation dust-laden air from a duct 10 traverses the web 4 to the drum interior and is discharged through an open end 12 having a leather collar 13 in sealing engagement with a fixed flange 14 surrounding an outlet in a partition wall 11. Prevention of passage of dust laden air through that part of the drum surface 2 not covered by the web 4 is effected by a free roller 15 or alternatively by a hood-like shield above said part and a strip of impervious material below it and inside the drum. The ends 8 of the spools 5, 6 slide in channels 9 so as to relieve the web 4 of tension.
Patent GB-1493458-A (GB)
Title: Process for recording fluid flow at a boundary surface
IPC: G01M9/06
Filed: 1975-06-30
Abstract: 1493458 Fluid-flow indication SIEMENS AG 30 June 1975 [23 Sept 1974] 27589/75  Heading G1R A method of recording fluid-flow over a boundary surface comprises coating the surface with a layer of a lacquer and passing over the surface a fluid containing a material which reacts with the layer to produce a visible record of the flow pattern. As described, a positive or negative photoresist is applied to the surface and exposed to light. The fluid contains a material e.g. caustic soda which etches portions of the photo-resist to produce a flow pattern. The description refers to materials which dissolve, decompose, bleach or otherwise react chemically with portions of the coating. The method can be used with model aerofoils, turbine blades and ducts; the fluid may be liquid or gaseous.
Patent GB-304267-A (GB)
Title: Improvements in apparatus for filling bottles or other receptacles with liquids and sealing the same
IPC: B67C7/00
Filed: 1927-10-18
Abstract: 304,267. Howard, H. W., and Hayward, Tyler, &. Co., Ltd. Oct. 18, 1927. Bottling. - Relates to rotary machines for syruping, filling and sealing or for filling and sealing bottles &c. According to the invention the bottles &c. are moved from a table 21 or from the syruper bottle block to the filling head by one end of a double armed lever 32, while filled bottles &c. are removed by the other end of the lever to a sealing table &c. The arms of the lever 32 has V-shaped ends for engaging the bottles and holes 42 are provided in the boss thereof which register with a similar series in the collar 89, and a screw 44 is passed through selected pairs of holes to adjust the lever for bottles of different diameters. The lever is operated by a shaft 33 having an actuating arm 36 which carries a roller 37 engaging in the groove of a cam 38 on the cam shaft 23.' A second arm 48 is fitted on the shatt 33 to which a cord 49 is attached which passes over a pulley 51 and supports a weight. The pull on the cord 49 keeps the roller 37 in contact with one side of the cam groove and prevents back lash. Crown corks in the hopper 56 are agitated by rotary motion transmitted by the cord 49 to the pulley 51.
Patent GB-535586-A (GB)
Title: Improvements in and relating to the manufacture of trichlorobutane
IPC: C07C17/04
Filed: 1939-10-12
Abstract: 535,586. 2:2:3-Trichlorobutane. DU PONT DE NEMOURS & CO. E. I. Oct. 12, 1939, No. 27739. Convention date, Oct. 12, 1938. [Class 2 (iii)] 2 : 2 : 3-Trichlorobutane is made by chlorinating 2-chlorobutene-2 (Specification 535,585) in the substantial absence of light. The chlorination may be effected in the vapour phase at temperatures not exceeding 150‹ C. and preferably not exceeding 100‹ C., or in the liquid phase in the presence of a chlorination catalyst, e.g., ferrous or ferric chloride, stannous or stannic chloride, aluminium chloride, antimony tri- or penta-chloride, sulphur chloride or iodine. In an example, 2-chlorobutene-2 is chlorinated in the liquid phase in the presence of ferric chloride.
Patent GB-991638-A (GB)
Title: Electromagnetic relays
IPC: H01H50/54
Filed: 1962-07-19
Abstract: 991,638. Electromagnetic relays. GENERAL SIGNAL CORPORATION. July 19, 1962 [Oct. 2, 1961], No. 27793/62. Heading H2B. An insulating block 44 mounted on the end of the core 10 of an electromagnetic relay has accurately positioned surfaces 46, 51, 49, 50 to define the relative positions of the core end, armature rest position and the rest positions of fixed contact springs 27, 28. Prestressed coil springs 56, 57 urge the free ends of the fixed contact springs to their rest positions against surfaces 49, 50 and a leaf-spring 47 is bowed between the core end 10 and block 44 to urge the faces 46 into engagement with the core end. A coil spring 52 urges the armature 32 to its rest position against surface 51. An operating card 40 fits in slots in the ends of moving contact springs 26 and has a resilient finger which engages in a hole 43 in the armature 32. An insulator 11 of the contact supporting stack extends through a hole 37 in the core 10 and a compression spring acts between the insulator 11 and a seating 39 on the armature 32 to locate the armature 32 between core shoulders 33 to pivot on core edge 34a. A non-linear resistor block 22 and compression springs (Fig. 6, not shown) are mounted in series with the relay coils 14 in the contact supporting stack and serve to limit arcing of any contacts which may be connected in series with the coils. The insulators 19 of the stacks are cut away to provide resilient projections 31 (Fig. 9) which locate and retain the contact springs 26, 27, 28.
Patent GB-332810-A (GB)
Title: Improvements in and relating to sound reproducing instruments
IPC: H04R11/00
Filed: 1929-09-13
Abstract: 332,810. Wates, F. S. S. Sept. 13, 1929. Magnetic instruments.-The actuating coils in an electro-magnetic sound reproducing apparatus, such as a loud-speaker, of the type having means ;to vary the air gap between the magnetic poles and to adjust the reed in the air gap are carried by the pole pieces of the magnets. As shown, a balanced armature loud-speaker unit may comprise a pair of permanent horse-shoe magnets a, b carrying operating coils a<3>, b<3> on laminated pole pieces a', b<1>. The magnet a is supported loosely on a pair of rods projecting from a plate n secured to the upper end of the magnet b, and shouldered parts projecting from the magnet a fit into cup-shaped parts carried by the magnet b and are adjusted therein, to vary the air gap, by moving the upper ends of the magnets a, b relatively to one another against a spring m, which tends to keep them apart, by means of a screwed spindle. l<1> operated by a knurled knob l<3> and screwing into a boss k secured to and projecting from the magnet a. The reed q also is attached to the plate n, by a screw s with spring washer t, and is adjustable in the air gap between the magnets to centralize it by a screwed spindle p operated by a knurled head p<1> which bears on the reed and causes it to pivot about the ends of grub screws r. Projecting pins l<4>, p<2> engage the spindles p, l<1> respectively and act as stops to the adjustments.
Patent GB-744661-A (GB)
Title: An improvement in or relating to fabric-steaming machines
IPC: D06C7/00
Filed: 1951-11-29
Abstract: In a fabric-steaming machine of the kind in which the fabric to be treated is wound, together with a wrapper, on to a perforated steaming roller and is then after treatment wound off the roller while the wrapper is simultaneously wound, together with a further fabric to be treated, on to a second perforated steaming roller, the two rollers are driven from a common source through a differential gear in such a <PICT:0744661/IV(c)/1> manner that the surface speeds of the fabrics on the two rollers are at all times maintained equal to one another.  The motor c drives a worm wheel through a worm gear, the worm wheel being fixed to the casing of a differential gear one of the output shafts of which is shown at h.  A sprocket h1 mounted on the shaft h is coupled by a chain h3 to a sprocket mounted on a sleeve running freely on the shaft g.  The sleeve carries a further sprocket i1 coupled to sprocket j2 which in turn drives the sprocket j2 mounted on the shaft b carrying one steaming roller.  The other output from the differential gear, which is not visible in the Figure, is coupled to a sprocket rigidly fixed upon the shaft g which is itself coupled through the sprockets g1 and g2 with the shaft a carrying the other perforated roller.  The sleeve mounted to run freely upon the shaft g may be clutched to that shaft in which case the differential gear ceases to be operative.  Similarly either roller may be de-clutched from its respective shaft a or b so that either roller may be driven independently.
Patent GB-363656-A (GB)
Title: Improvements in or relating to systems of time distribution
IPC: H04M3/487
Filed: 1930-09-19
Abstract: 363,656. Clocks combined with means for announcing the time. BEERMANN, F., 110, Boschetsriederstrasse, Munich, Bavaria, Germany. Sept. 19, 1930, No. 28042. Convention date, Sept. 19, 1929. [Class 139.] In a broadcast time distribution system a clock U controls, in known manner, through the leads G, H, the alternately operating motors A, B, the one in operation conveying the announcing band F, which may be a film or magnetic record, from one reel C to another D. The band F coacts with a pick-up device T communicating with the transmitter over a line P. The clock may also release precision time signals periodically and preferably at the end of each minute.
Patent GB-407636-A (GB)
Title: Washing machine
IPC: D06F37/04
Filed: 1933-10-11
Abstract: 407,636. Washing-machines. BLATT, H., 2, Pfandhausstrasse, and SUSSEL, S., 6, Parkusstrasse, both in Mainz, Germany. Oct. 11, 1933, No. 28094. [Class 138 (ii).] The clothes receptacle of a rotary washing- machine which is spherical in shape is formed of intersecting longitudinal and transverse wires e, h. The longitudinal wires are undulated and the transverse wires may be flat or undulated and they are arranged around the longitudinal wires and spot-welded thereto. Internal lifters are arranged at an angle to the axis and one of the trunnions is eccentric.
Patent GB-802545-A (GB)
Title: Improvements relating to combustion chambers for fluid fuel
IPC: A43C1/00
Filed: 1956-09-14
Abstract: 802,545. Generating combustion products under pressure. GENERAL ELECTRIC CO. Sept. 14, 1956 [Sept. 15, 1955], No. 28162/56. Class 51 (1). Combustion equipment for a gas turbine engine comprises an outer casing and an inner flame tube 4, the flame tube having an end cap 1 comprising a part-spherical annular shroud portion 13 defining ports 13a for the metering of air therethrough and a member 14 of frusto-conical shape mounted in the shroud 13 with its larger end downstream and rigidly secured to the shroud. The smaller upstream edge of the frustoconical member is secured to a fuel nozzle mounting ring 17, the edge 18 of which is disposed close to the inner edge 19 of the shroud 13. The nozzle mounting ring 17 has a plurality of recesses 17a formed in its inner periphery to provide passages for cooling air around the fuel nozzle mounted therein. The frusto-conical member 14 is formed with a plurality of louvres 20 for directing air therethrough and outwardly over the inner downstream surface of the member, also with a plurality of circular openings 25 for the passage of air therethrough in an inward and downstream direction. The openings 13a are provided in a radially disposed wall of the shroud portion 13. The louvres 20 are overlappingly spaced in a radial direction in that portion of the frusto-conical member 14 which is located beyond the inner third of its radial width. The circular ports are located in that portion of the frusto-conical member which lies between onethird and one-half of its inner radial width. The louvres 20 are in the form of crescent-shaped projections with an inner raised portion forming an opening facing upstream and gradually widening in the outward radial direction.
Patent GB-354593-A (GB)
Title: Improvement to retinoscopes and ophthalmoscopes
IPC: A61B3/12
Filed: 1930-09-22
Abstract: 354,593. Sight-testing instruments. MORTON, J. P., Bank Chambers, Dowlais, Glamorgan. Sept. 22, 1930, No. 28217. [Class 97 (i).] In order to register the meridian in the use of an ophthalmoscope or a retinoscope, a scale of angles is marked on the back of the instrument and a weighted triangular &c. pointer is pivoted coaxially with the sight hole. The indicator can be prevented from moving by tilting the instrument, or a knob and spring may be provided to lock it in position.
Patent GB-628108-A (GB)
Title: Improvements relating to methods of improving the taste of water soluble constituents of forage crops
IPC: A23L2/78
Filed: 1945-10-25
Abstract: The natural juices and aqueous extracts of leafy green forage crops or the aqueous extracts from dehydrated leafy green forage crops, e.g., grass, alfalfa, clover, are made palatable by removal of the metal ions rendering them unpalatable for human consumption or by replacement of these ions by other ions which do not impart an unpalatable flavour.  The juice or extract may be subjected to a cation exchange treatment for the replacement of the metal ions with hydrogen ions or of metal ions other than sodium ions with sodium ions, subjected to electrodialysis, or subjected to electrodialysis and then to the cation exchange treatment.  The treated juice or extract may be concentrated or dried.
Patent GB-654911-A (GB)
Title: Improvements in or relating to the production of cast irons
IPC: C21C1/00
Filed: 1948-10-30
Abstract: Magnesium metal is introduced into cast iron by bringing molten iron into contact with magnesia or a magnesia-generating compound at temperatures above 1650 DEG C or with a mixture containing magnesia and silicon at temperatures above 1100 DEG C.  The added mixture may contain magnesia, lime and silicon (or ferrosilicon in approximately stoichiometric proportions), together with a binding agent and an accelerator, namely, a halide such as magnesium chloride, calcium fluoride or magnesium fluoride.  The mixture may be used in the form of briquettes which are held under the surface of the melt.  The method may be applied to the desulphurizing of cast iron or for producing a grey cast iron in which free carbon is present wholly or predominantly in the nodular form.  In the latter case the amount of magnesium added is more than enough to reduce the sulphur content of the cast iron below 0.02 per cent, the excess being retained in the cast iron. A graphitizing agent may be added to ensure the production of a grey cast iron hypereutectic in relation to carbon. Specification 645,862 is referred to.
Patent GB-204548-A (GB)
Title: Improvements in and relating to time-alarms
IPC: G04B23/00
Filed: 1922-10-17
Abstract: 204,548. Bennett, W. A. Oct. 17, 1922.. Starting. - Comprises an attachment for enabling the striker of a mechanical alarm clock to start a gramophone, the striker being stopped after its first stroke while the sound-box is held' off the record until the latter has begun to move. When the alarm is to be given, the brake 13 is released by the movement of the spring 12, but the latter is normally held, in the position shown, by a hook 11 on an arm 10 which is pivoted at 20, the hook 11 being preferably constituted by a knife-edged wheel to reduce friction. The arm 10 is adapted to be knocked downwards by the fall' of a rod 5 which is attached at one end to the striker 4 of the clock 3, and is also attached to a block 6 supported on inwardly-projecting portionsof a bridge-piece 9 by means of knife-edged wheels 8, 8, carried by the block; but at the first stroke of the striker 4 the block 6 is pulled off its supports and falls. To enable the turntable 25 to start, friction of the needle thereon is reduced by permitting the needle to rest in the inclined and curved metal or glass groove 17 formed on a plate 18 which fits into a slot formed in a rubber pad inserted between the turntable and the record. The groove 17 conducts the needle, when motion has begun, to the first groove of the record.
Patent GB-209837-A (GB)
Title: Improvements in the transmission and change gear mechanism of motor vehicles
IPC: F16H15/46
Filed: 1922-10-19
Abstract: 209,837. Lanchester, F. W. Oct. 19, 1922. Variable - speed friction gearing for motor vehicles comprises a driven drum D which is moved in its own plane into engagement with one of a number of driving friction pulleys E, F, G which are advanced selectively. The pulley E driven directly by the engine yields the high speed. Pulley F driven by a chain K from the pulley E vields the low forward speed. Pulley G driven. by a spur pair from the pulley F effects reversed driving. The pulleys F, G are supported in a rocking frame H<1> operated by a lever H<2>. The drum D is moved into driving engagement or into engagement with a brake surface L by an eccentric mount C' operated through a lever C<2> from a pedal. A double arrangement for driving road wheels independently is shown in Fig. 6.