baber/WOPTO huggingface dataset:
Patent GB-894083-A (GB)
Title: Improvements in or relating to seed sowing appliances
IPC: A01C7/04
Filed: 1957-12-20
Abstract: 894,083. Seed sowing machines. WEBB Ltd., ERNEST, A., and LAMB, P. G. Dec. 22, 1958 [Dec. 20, 1957], No. 39713/57. Class 6(1). A seed sowing appliance of the kind comprising a seed hopper from which seeds are supplied to a rotary distributer 26 provided with seed cups 28 around its periphery by which seeds are delivered to a seed shoot, and a control member 27 which removes excess seed from the distributer, is characterized in that the trailing edge is cut away (50) to facilitate the removal of excess seeds by the control member. As described the machine is similar to that described in Specification 795,062. A hopper as described in Specification 894,084 is provided.
Patent GB-858613-A (GB)
Title: Equipment for distributing gaseous or liquid media in fluidised reactors
IPC: B01J8/18
Filed: 1958-12-10
Abstract: <PICT:0858613/III/1> <PICT:0858613/III/2> For introducing gases, vapours or liquids, e.g. a hydrocarbon oil into a fluidised reactor, a plurality of straight, perforated tubes (2, 3) are employed, said tubes being inserted into the bed (1) through pipe sections (15) incorporated into the walls of the reactor, to which said tubes are attached by means of flanges (13).  Figs. 1 and 2, to which the above numerals relate, show a preferred embodiment in which two horizontal tiers of tubes are provided, said tubes being provided with manifolds 5, 7 and 9 for the supply of fluids thereto and with ceramic supports 4 for the ends remote from reactor wall.  Alternatively the tubes may cross the whole reactor cross-section and be supported by water-cooled iron girders or ceramic supports.  When a hydrocarbon oil is introduced through the upper tier of tubes, the lower tier may be employed to introduce steam into the bed in order to maintain fluidisation despite the coking of the oil.  It is desirable to atomize liquids or mixtures of liquids and vapours by introducing them with steam into the tubes: thus pipe 9 may be employed for the steam and pipe 7 for a mixture of vaporized and liquid hydrocarbons. Centre-hole diaphragms 8 and 10 ensure that the correct amount of the gas or liquid reach the tubes and the tubes are preferably reduced in cross-section gradually or in stages away from the wall in order to maintain even distribution of the fluids.  Variation of the reading of a pressure guage 12 indicates blockage or wear of the apertures of the corresponding tube, and replacement of individual tubes is readily effected by unconnecting the flanges.  The tubes may be provided with resistant materials in the region of the holes.  The holes may be in the form of slits.
Patent GB-933479-A (GB)
Title: Improvements in draw off taps for water boilers and heaters
Inventor: LOMAX WILLIAM
IPC: F16K35/02
Filed: 1960-11-22
Abstract: In a gas/liquid contact apparatus comprising one or more beds of aggregate supported on a grid, liquid is supplied to the top of the bed or uppermost bed and the rate of gas flow through the bed or beds is so controlled that in use the bed or beds of aggregate is or are flooded.
Patent GB-1068119-A (GB)
Title: Improvements in or relating to power supply apparatus
IPC: B05B7/14
Filed: 1965-09-21
Abstract: 1,068,119. Automatic control of current and voltage. TEMESCAL METALLURGICAL CORPORATION. Sept. 21, 1965 [Sept. 28, 1964], No.40156/65. Heading G3R. An electron beam furnace is provided with a regulated power supply which provides a constant voltage over the normal operating current range and which limits the maximum current supplied to the furnace. As shown, the accelerating voltage for a furnace 12 is derived from a D. C. source 16 by way of a series valve 14 and current sensing resistors 62, 64; the heating current for the furnace filament 30 is derived from an A. C. source 130 by way of a diode bridge 134 associated with a thyristor 132, an autotransformer 136 and a filament transformer 36. The accelerating voltage, as detected by a voltage divider 70, 72, 74 is compared in a circuit 20 with a reference voltage derived from a Zener diode 92, and any resulting error signal is applied to control valve 14 so that the accelerating voltage is maintained at a constant value determined by the setting of potentiometer 72. Should the supply current exceed a maximum value because of arcing &c. in the furnace, this maximum value being determined by the setting of rheostat 64, the current signal supersedes the voltage signal and the triode 14 is then controlled so that the current is limited to the desired value. During normal operation the beam current is maintained at a preselected value by a control means 128 which may include a magnetic amplifier and which controls the firing of thyristor 132 in response to an error signal derived from the comparison of the current sensing signal from resistor 62, 64 with a reference signal derived from a potentiometer 126. The circuit 20 includes an OR gate, constituted by transistors 78 and 80, to which the voltage and current signals are applied.
Patent GB-966037-A (GB)
Title: Improvements relating to window constructions
Inventor: PRICE DAVID WILLIAM
IPC: E05F11/04
Filed: 1961-11-13
Abstract: 966,037. Ventilators. D. W. PRICE & SON Ltd. Nov. 8, 1962 [Nov. 13, 1961], No. 40581/61. Heading F4V. [Also in Divisions E1 and E2] In a shop front having a window panel 4 provided with a horizontal gap or slot for ventilation between the soffit of the window structure and the edge of the panel 4 there is provided a closure flap 6, e.g. of glass, carried in socket members 2 pivoted, as at 14 Fig. 2, on brackets 11 which have a limb secured to the soffit surface and have a bifurcated end 11a holding the edge of the panel 4, in which case, it carries socket members on each side as shown in Fig. 1, or an end bracket comprises a bifurcated limb which is secured to a side surface of the gap, e.g. a side stile 10A, Fig. 1. Adjacent intermediate socket members 2 may be bridged by a member 7 so that all flaps 6 may be caused to move together. For movement of the flap an arm 3 is secured on a lug 2a fixed to the socket member 2 and the arm is biased to the closed position of the flap 6 by springs 8, and the flap can be operated to the open position by depressing the arm 3. An alternative form of end bracket is described.
Patent GB-949207-A (GB)
Title: Improvements in or relating to conveyor installations
Inventor: ORWIN OLAF JOHN BARCLAY
IPC: B61B10/02
Filed: 1959-11-30
Abstract: 949,207. Conveyer systems. FISHER & LUDLOW Ltd. Feb. 27, 1961 [Nov. 30, 1959], No. 40657/69. Heading B7L. In a conveyer installation in which a plurality of carriers 13 are moved along a track 12 by a plurality of pairs of dogs 29, 30 depending from an overhead chain 10 running on a track 11, one dog 30 of each pair constituting a retarding dog and the other dog 29 a driving dog, the dogs 29, 30 being displaceable relative to the chain 10 between a lower operative position and an upper inoperative position the two dogs 29, 30 of each pair are slidably mounted perpendicular to the chain 10 between their operative and inoperative positions and at least one of the dogs of each pair is so mounted that its movement from driving engagement with a carrier is accompanied by displacement of the dog in a direction along the length of the carrier track 12. In the arrangement shown, the dogs 29, 30 are slidably mounted between cranked plates 18 depending from links 17 of the chain 10 and guide pins 21, 22, 23, 24, 25 and 26 interconnecting the plates 18. The dogs 29, 30 are provided with shanks 27, 28, the upper faces 27b, 27c and 28b, 28c of which are parallel relative to one another and vertical and the' lower faces 27f, 27e and 28f, 28e of which are parallel to one another and inclined upwardly and inwardly. The dogs 29, 30 are lifted to their inoperative position by laterally projecting pins 31, 32 engaging cam members. The dogs 29, 30 are moved towards one another as they are lifted by the inclined faces 27f, 27e and 28f, 28e engaging guide pins 23, 22 and 22, 21. Downward gravitational movement of the dogs 29, 30 is limited by lugs 33 thereon engaging guide pins 23, 21. The guide pin 22 is removably mounted in the plates 18 to facilitate the assembly of the dogs 29, 30. Specifications 639,244, 819,343, 875,082, 875,083, 949,204, 949,205 and 949,206 are referred to.
Patent GB-1522960-A (GB)
Title: Stranding device and process for the s-z stranding of elongate elements
IPC: H01B13/02
Filed: 1975-10-06
Abstract: 1522960 Device and process for S-Z stranding SIEMENS AG 6 Oct 1975 [15 Nov 1974] 40882/75 Heading D1T An S-Z strander comprises a twist region between a first and upstream stranding point 1, Fig. 3; and a second and downstream stranding point 2, there being in this twist region a twisting device 3 that is rotatable in both directions, the twisting device 3 being a stranding disc that is nearer to the stranding point 2 than to the stranding point 1. There may be stranding nipples 42 and 43 arranged on both sides of the twisting device 3, the stranding nipple 42 being mechanically fast with the disc 3. Between the nipple 1 and the disc 3 there may be one or more twisting devices 31 that engage the stranding material by light frictional force in the manner of a slip clutch and rotating in the same direction as the twisting device 3. Such additional twisting devices may rotate at varying velocities increasing in the direction towards the stranding disc 3. In Fig. 4 (not shown) items 31 and 42 are replaced by a single tube (34) rotating with the twisting device 3, the tube (34) having an internal diameter corresponding approximately to the diameter of the stranded material, the tube length being approximately one third of the spacing between the nipple 1 and the twisting device 3. Fig. 5 shows an embodiment similar to Fig. 3 except that the twisting devices 31 are replaced by a single twisting device 35 close to the stranding point and rotating in the same direction as the twisting device 3 but at half the speed thereof. To prevent changes in twist magnitude between the device 35 and the twisting device 3 there may be a rotating track 36 as shown in Fig. 6. Fig. 7 is an embodiment similar to Fig. 6 except that the track 36 is replaced with a lobar rail (37). Fig. 8 (not shown) shows embodiments similar to Fig. 5 arranged in parallel, there being a common withdrawal device (11) downstream of the parallel arrangements; and individual draw-off devices 12 for each. In the above embodiments the stranding material may travel through the twisting region in a stretched condition and the direction of rotation of the stranding disc may be altered each time on completion of at least three revolutions.
Patent GB-1191504-A (GB)
Title: Improvements in Ceramic Articles and Methods of Producing Same.
IPC: C04B41/89
Filed: 1967-09-07
Abstract: 1,191,504. Glazed ceramic article. AMERICAN CAN CO. 7 Sept., 1967 [8 Sept., 1966], No. 40910/67. Heading C1J. A low-density ceramic article comprises a fired ceramically-bonded mixture of not more than 70% clay, not less than 30% low-density aggregate and a surface coating of glaze. The article is made by mixing clay, low-density aggregate and water, shaping the article and drying so as to remove a portion of the water therefrom, glazing and thereafter firing the article. The clay may comprise ball clay, kaolin, talc, flint, feldspar, wollastonite and bentonite. The low density aggregate is preferably vermiculite but may be diatomaceous earth, perlite or silica gel. An organic binder such as a starch compound, a dextrin compound, a cellulose gum polyvinyl alcohol or polyvinyl pyrrolidone may be included in the mixture in the amount up to 4% bywt. An internal mould release agent such as paraffin oil and an external mould release agent such as a coating of stearic acid may be used, the former being burnt out before firing.
Patent GB-1488813-A (GB)
Title: Method for coating anti-reflection film on surface of optical material
IPC: C03C17/34
Filed: 1974-09-23
Abstract: 1488813 Vapour deposition of silicon oxides HOYA LENS CO Ltd 23 Sept 1974 [16 Oct 1973] 41321/74 Heading C7F An anti-reflection film of SiO-SiO 2  is vapour deposited on a transparent glass or synthetic resin film, whilst adjusting the amount of oxygen in the vacuum chamber. The films may be SiO followed by SiO 2  or SiO 2 -SiO-SiO 2 . The film may be diethylene glycol bisallyl carbonate.
Patent GB-1100684-A (GB)
Title: Low phosphorus iron briquettes
Inventor: ROLLINSON GEORGE DAVID
IPC: C22B1/248
Filed: 1963-10-18
Abstract: A briquette for use in a furnace charge comprises densely compacted fragments of scrap metal having a phosphorus content such that the phosphorus content of the briquettes is not greater than 3% and the mass of the briquettes preferably being such that they reach the melting zone of a cupola before disintegrating, alloying additions such as carbon, silicon or molybdenum, and desulphurizing agents such as sodium carbonate or calcium carbide may also be present in the briquettes which may also include as binder slag-forming substances such as fluorspar, quick - or slaked lime, or sulphite lye.
Patent GB-1447068-A (GB)
Title: Methods and means for printing or decorating articles
IPC: B41F15/08
Filed: 1973-09-04
Abstract: 1447068 Printing MURRAY CURVEX PRINTING Ltd 12 Aug 1974 [4 Sept 1973] 41471/73 Heading B6C A method of printing comprises applying molten thermoplastic material to a transfer member, causing or allowing the material to solidify, coating the solidified material with an adhesive, and transfering the adhesive-coated material directly on to the desired substrate. As shown, coloured molten thermoplastic material is applied at station A through a screen to a transfer member. The screen may be heated by a radiant heater, and the transfer member supported on a cooled support 14 which may also be provided with vacuum duets. Adhesive is then applied at station B, preferably through a screen in a pattern corresponding with the pattern of of the thermoplastic material. The screens are provided with hydraulically actuated squeegees 19 and 20. The image is heated at station C, and the transfer member inverted, and then at station E, pressed into contact with an article, e.g. a plate, to be printed. More than one colour may be printed by providing a plurality of stations A.
Patent GB-1341720-A (GB)
Title: Porous alumina-base ceramic bodies
IPC: C04B35/10
Filed: 1971-09-07
Abstract: 1341720 Porous ceramic bodies HIRADASTECHNIKAI IPARI KUTATO INTEZET 7 Sept 1971 [9 Sept 1970] 41717/71 Heading C1J A porous alumina-base ceramic body containing less than 0À5% by weight in total of Fe 2 O 3 , Na 2 O + K 2 O and SiO 2  is made by shaping and firing at a temperature at or above 1700‹ C. a composition comprising: 5 to 70 wt. per cent electro corundum (fused Al 2 O 3 ), 1 to 60% α alumina, 1 to 50 wt. per cent MgAl 2 O 4  spinel, 0À1 to 10 wt. per cent Al(OH) 3  the components having a particle size between 2 microns and 0À6 mm. An organic binder e.g. polyethylene glycol may additionally be included in the composition.
Patent GB-1043459-A (GB)
Title: A rotary switch assembly
Filed: 1964-10-14
Abstract: 1,043,459. Mechanical switches without quick action. BOYNE PRODUCTS Inc. Oct. 14, 1964, No. 41920/64. Heading H2B. A rotary switch for rotation through a restricted angle by the gear-selector shaft 6 of a motor vehicle, and comprising a substantially semi-circular casing 10 having fixed contacts 17, 17a, 18, 18a therein and journalling the hub 21 of a moving quadrant 25 which carries three roller contacts for selectively bridging the fixed contacts, is arranged to permit relative movement between the casing or the moving quadrant and its respective supporting member for initial alignment of the switch contacts with respect to the position of the shaft 6. The casing 10 is closed by a cover 32 having legs 36 and spring clips 38 by which it can be supported on the fixed outer tube of a steering column 3. The moving quadrant 25 is of a resilient material such as nylon and its hub is radially open (Figs. 5, 6 or 8, not shown), so as to be securable by friction grip directly on to shaft 6, around which the legs of casing 10 pass freely to engage the column 3. The gear-shaft has a central neutral position, wherein a roller contact 27 bridges contacts 17, 17a in a starting-circuit, and two end positions in one of which another roller 27 bridges contacts 18, 18a to light a reversing lamp, and in the other of which a third roller 27 bridges the contacts 17, 17a again. The limiting positions of the switch are arranged to be defined by abutment of the moving quadrant with the end walls of the casing. Thus, after assembly, movement of the gear-shaft 6 between its limits causes the switch quadrant 25 to abut its casing 10 and by frictionally slipping on shaft 6 automatically corrects any misalignment of the switch contacts with respect to the shaft 6. Instead of being clipped on to the steering column the switch casing may be screwed to a fixed bracket (Fig. 14, not shown), and in a modification of this arrangement the quadrant hub has ribs 73 engaging grooves 74 in the gear-selection shaft to prevent relative rotation (Figs. 10 to 12, not shown), and the casing has short arcuate slots for the fixing screws such that abutment of rotor and casing causes the latter to move into correct alignment, whereupon the fixing screws are finally tightened.
Patent GB-1378798-A (GB)
Title: Methods of and apparatus for electrophotography
IPC: G03G21/00
Filed: 1972-09-11
Abstract: 1378798 Electro-photographic process RCA CORPORATION 11 Sept 1972 [29 Oct 1971] 42010/72 Heading G2H A toner particle image 40 is formed on the surface of a photo-conductive member 30 by selective removal of part of a uniform coating of toner particles, consequent on exposure to electromagnetic radiation. The toner particles are magnetic, and adhere electrostatically to the surface of the unexposed member, but when the member is exposed and part of its surface loses its initial charge over the conductivity image so formed the particles there fly off towards a magnet 42. Preferably the member 30 is made up of a transparent substrate 32 of glass or a plastics material, a transparent electrically conductive layer 34 and a transparent photoconductive layer 36, and is exposed through its base. Alternatively the exposure may be made through the toner particle coating. The developed image may be fixed on the member 30 or transferred to a copy sheet, or may be used as a transparency to make photographic prints or for projection without fixing, in which case it can be removed by wiping or exposure to light to allow re-use of the member 30.
Patent GB-1447226-A (GB)
Title: Drawing or painting aids
IPC: G02B27/14
Filed: 1972-09-11
Abstract: 1447226 Optical apparatus C W HART 11 Sept 1973 [11 Sept 1972] 42023/72 Heading G2J A camera lucida comprises a viewing window with transparent panel 8, a transparent panel 9 and a mirror 11. The device is also fitted with a chin rest 5 and a lug 10 adapted to receive a supporting rod.
Patent GB-899257-A (GB)
Title: Improvements in or relating to presses provided with at least one die for moulding products from ceramic material
IPC: B28B7/46
Filed: 1958-12-31
Abstract: 899,257. Compression moulding ceramic material. PHILIPS ELECTRICAL INDUSTRIES Ltd. Dec. 31, 1958 [Jan. 3, 1958], No. 42196/58. Class 87(2). Ceramic material is moulded in a compression moulding machine wherein the material is fed through a duct to a die or dies as a suspension in a liquid preferably having a low viscosity and a closure member of the die or dies is provided with apertures for discharging the liquid during the moulding operation. The closure member 16 is pressed down by plungers 15 on to a moulding plate 7 which houses an annular member 8 with a cylindrical wall 9 embracing dies 10, the cavities of which are open at the beginning of the cycle. Suspension material is fed to the dies through a bore 23 in a cylindrical extension 5 from the main press plunger 2. When enough material has been fed, the moulding plate 7 is pressed further downwards, the plunger 2 remaining stationary, so that punches 6, carried on the extension 5, are pressed into the die cavities and surplus suspension liquid is expelled through a porous plate 21, filter 22, apertures 18 and an aperture 20. The article is thus formed. The plunger 2 then rises, as do plungers 4 in buffer cylinders 3, the latter elevating the member 7 and 16. When a certain position is reached the plungers 4 cease their movement but the plunger 2 continues, the moulding plate 7 being stationary, and the articles are ejected, the closing member 16 being likewise pressed upwards. When the articles are entirely pressed out of the die cavities the plunger 2 stops, but the plungers 15 move the member 16 slightly further upwards so that the articles can be removed. In a modification, ducts may be formed in the puncher 6, filters being fitted over their ends. In another modification, the closing member 16 may be replaced by an upper plunger, with ducts and a filter, between which and the lower plunger the material is compressed. Coils carrying an electric current may be disposed in cavities 24, 25, the dies being made of non- magnetic material so that the ceramic is exposed to a magnetic field, or heating and cooling elements may be housed in the cavities.
Patent GB-958292-A (GB)
Title: A process for use in the production of semi-conductor devices
IPC: H01L23/31
Filed: 1961-11-24
Abstract: 958,292. Semi-conductor devices. SIEMENS-SCHUCKERTWERKE A.G. Nov. 24, 1961 [Nov. 24, 1960], No. 42213/61. Heading H1K. A PN-junction semi-conductor device, e.g. a silicon diode, is subjected to a "tempering" treatment at 200-300 C., for a plurality of hours after which the element is etched and provided with a layer of protective lacquer on that part of its surface at which the PN- junction emerges. The " tempering " may be carried out for about 72 hours, but may be reduced to about 16 hours by etching and covering the junction with a layer of either an aqueous alizarin solution or a silicone resin before tempering, the protective layer being removed and a second etching carried out before the final coating with a lacquer containing alizarin which is cured by a final heat treatment at 200 C. for 16 hours. The treatment is said to improve the inverse characteristics of the function.
Patent GB-1125531-A (GB)
Title: Telecommunication exchange systems
IPC: H04Q3/54
Filed: 1966-09-23
Abstract: 1,125,531. Automatic exchange system. INTERNATIONAL STANDARD ELECTRIC CORP. 23 Sept., 1966 [30 Sept., 1965(3)], No. 42498/66. Heading H4K. In an exchange provided with sections allocated to local, incoming, outgoing and transit calls, the switches and control circuits of some of the sections are combined whereby an overall saving in the cost of the common control circuitry is achieved at the expense of a marginally longer processing time for each call. The control circuits include guide-wire type route finders. In the system shown, a local call from T1n is extended over switches EKF and MKF to a local junction A-VS and from there over switch I.RKF to a distribution frame and hence to a further local junctor B-VS and thence via MKF and EKF to the called party. An outgoing call from T1n is similarly extended to the distribution frame and then either directly or via part of MKF to an outgoing junctor D-VS. An incoming call to T1n is extended via an incoming junctor C-VS, switch I.RKF, the distribution frame, local junctor B-VS, MKF and EKF. A tansit call involves C-VS, IRKF and D-VS. The "group selector" I.RKF used for all these different types of call is controlled by a common marker RM. The "finder/selector" EKF, MKF is controlled by a separate common marker GM. The register Rg comprises a plurality of different types of registers (and senders). The switches EKF, MKF, I.RKF each comprise a plurality of cascaded stages of co-ordinate switching matrices.