baber/WOPTO huggingface dataset:
Patent GB-267291-A (GB)
Title: Improvements in or relating to cam-operated mechanism
IPC: F16H53/06
Filed: 1926-02-17
Abstract: 267,291. Rose, W., and Rose Bros- (Gainsborough), Ltd. Feb. 17, 1926. Cam mechanism.- A transmission lever 7 is yieldingly operated in both directions by a cam 3 through the intermediary of a cam lever 1, both levers being mounted about the same axis 2. In the direction in which the lever 1 is yieldingly drawn into contact with the cam by a spring 4, the transmission to the lever 7 is positive by means of lugs or abutments 8, 9. In the opposite direction, in which the lever 1 is positively operated by the cam, the movement is yieldingly transmitted to the lever 7 through a spring 10.
Patent GB-1385796-A (GB)
Title: Process for producing concrete structural parts and equipment for  carrying out the process
IPC: B28B3/00
Filed: 1972-01-31
Abstract: 1385796 Inflatable mould linings and cores for concrete G GISMONDI and V SCARAFONI 31 Jan 1972 [13 Feb 1971] 4528/72 Heading B5A [Also in Division B1] The ingredients of a concrete mix are fed from respective silos through respective conveyers and proportioners 1 (Fig. 1) to means for dry mixing. Water is mixed with the dry mix by a continuous mixer 12 which delivers the wet mix under pressure to a mould 18 containing an inflatable lining or core. As described for moulding concrete structural elements embedding reinforcing bars 22 (Fig. 11), the dry ingredients are fed to a conveyer/mixer 2 (Fig. 1); chains 4 support crossbars 3 that are moved along a trough (not shown) from right to left to mix and convey the ingredients. Discharge boxes 7 (see also Figs. 2, 3, not reproduced) are filled successively and their counterweighted gates release the dry mix on to respective conveyers 8, each of which can be pivoted about a vertical axis passing through the respective box 7 to feed a respective reservoir 9. The volume of dry mix in the reservoir is controlled by level gauges 9<SP>1</SP>, 9<SP>11</SP>, and a vibrating dispenser 10 dispenses predetermined quantities into a screw conveyer and mixer 12, which receives water through diffusing inlets 15. Rubber coated, steel, helical screws of the mixer 12 (see Figs. 5, 6, not reproduced) feed the wet concrete through a flexibe pipe 17 into a mould 18. When the mould is full, an inlet valve 19<SP>1</SP> is closed and air or liquid is forced into collapsed cavities 20 (Fig. 11) of the lining or plurality of cores 20 Water drain through mould interstices.
Patent GB-1057273-A (GB)
Title: Improved silver salt diffusion transfer process
Inventor: HAES LOUIS MARIE DE
IPC: G03C8/06
Filed: 1964-02-03
Abstract: 1,057,273. Photographic transfer process. GEVAERT PHOTO-PRODUCTEN N.V. Feb.3, 1964, No.4548/64. Heading G2C. In a silver salt diffusion transfer process, a material comprising a support coated with a silver halide emulsion layer and then with a waterpermeable colloid layer, either layer containing hydroquinone and a 3-pyrazolidone or these developers being in another water-permeable layer in contact with the emulsion layer, is imagewise exposed and contacted with an image-receiving material containing development nuclei and hydroquinone in the presence of an alkaline liquid. Specified water-permeable colloids are celluloses, starches, sodium alginate, gum tragacanth, polyvinyl and polyacrylic compounds and polyoxyethylene. The image-receiving material may contain hydroquinone, and alkali metal metabisulphite, a watersoluble inorganic bisulphite or a water-soluble aldehyde bisulphide and cobalt sulphide is development nuclei. The gelatine silver halide emulsion layer may be hardened before exposure with formaldehyde.
Patent GB-704880-A (GB)
Title: Airplane landing wheel brake control apparatus
Inventor: YARBER GORDON WINSTON
IPC: B64C25/42
Filed: 1951-02-26
Abstract: 704,880. Aircraft brakes control systems. BOEING AIRPLANE CO. Feb. 26, 1951, No. 4671/51. Class 103(1) The invention is concerned with an improved control circuit for operation of the solenoid valve which releases pressure from the brake cylinder in systems of the type described in Specification 696,446, wherein the movement of a flywheel or other device is used to give warning that the landing wheels of an aircraft are being decelerated at a rate likely to cause wheel locking and to set in action control circuits to counteract this tendency. In Fig. 1, the solenoid valve for venting the brake cylinder is shown at 10 and S and R represent the contacts that are closed respectively as a result of the flywheel overrunning the wheel and vice versa. The circuit is energized by the pilot's master switch 18 and includes an arming switch 22 having a holding relay V, a relay X and three slow-release relays W, Y, Z. The circuit provides the following improvements over existing systems. Operation of the arming switch 22 either by the pilot or automatically on extension of the undercarriage prevents the brakes being applied until a certain interval after the touch down and thus avoids the situation whereby an initial wheel skid continues unchecked owing to the flywheel or inertia device being initially stationary. The arming switch holding relay V is put out of operation when the flywheel has been accelerated to a certain degree by closure of the contacts R and after a 'period determined by interlock release means resulting from the energization of relays W and X. The interlock also operates to prevent premature restoration of brake pressure in the event of a faulty or bounce landing. The operation of the circuit is also such as to use the ability of the speed recovery detector mechanism to produce a detection signal somewhat in advance of the actual attainment of full recovery speed to compensate for hydraulic and mechanical lags in the brake applying mechanism proper. It, however, provides for the restoration of braking pressure at the optimum moment as the wheel recovers speed after a brake release operation, allowing for the different characteristics of wheel speed recovery on normal and slippery runways. " Fail Safe " provision is made whereby unrestricted control of braking is restored to the pilot automatically upon occurrence such as the failure of electric power or in the event of grounding or short-circuiting of critical parts of the circuit. When relay Z remains de-energized and the lamp Ll remains lighted, the pilot knows that automatic braking control has failed. The indicator lamp L2 which glows intermittently as the solenoid valve 10 is energized provides a visible indication to the pilot that the control circuit is operating effectively.
Patent GB-1382683-A (GB)
Title: Octahydropyrindenes and pesticidal compositions containing them
IPC: C07D221/04
Filed: 1972-02-01
Abstract: 1382683 Plant growth regulation using Octahydropyrindenes CIBA-GEIGY AG 1 Feb 1972 [2 Feb 1971] 4749/72 Heading C1B [Also in Division C2] Plant growth regulating compositions, which inhibit the rate of growth of grasses, comprise compounds (I) where R is optionally substituted C 1-4  alkyl or optionally substituted C 3-4  alkenyl; R 1  and R 2  are hydrogen or one may be hydrogen and the other methyl; and X is oxygen or sulphur, together with a suitable carrier or diluent.
Patent GB-1493745-A (GB)
Title: Fuel-supply system for an internal combustion engine with fuel injection
IPC: F04B11/00
Filed: 1976-02-06
Abstract: 1493745 Fluid regulation DAIMLER-BENZ AG 6 Feb 1976 [13Feb 1975] 04756/76 Heading G3H [Also in Division F1] A fuel supply system for an I.C. engine 1 with fuel injection comprises a supply duct 3 leading from a fuel tank 2 via a spring chamber 9 of a fuel accumulator 6, a fuel pump 4 and a fuel chamber 8 of the accumulator, the chambers 8 and 9 being separated by a movable wall, e.g. a diaphragm 7 and the spring chamber 9 serving as a suction-noise damper. A filter 5 is provided between the pump and the fuel chamber.
Patent GB-1448076-A (GB)
Title: Photocopying machines
IPC: G03G15/00
Filed: 1975-02-04
Abstract: 1448076 Photo-copying WIFO WISSENSCHAFTLICHES FORSCHUNGSINSTITUT AG 4 Feb 1975 [11 Feb 1974] 4761/75 Heading G2A [Also in Division B8] Copy sheets fed from between belts 4, 5 are transported through a photo-copying machine below a light source 3 on a perforated seamless metal band 6 passing round drums 7, 8 and the upper run passing over a vacuum chamber 9. Holes in the edges of the band engage teeth on at least one of the drums 7, 8. The band is such as to provide diffuse reflection of light, e.g. by being formed with a white coating of barium oxide, zinc oxide or titanium oxide. The original to be copied is conveyed at right-angles to the copy sheet by a similar band.
Patent GB-631170-A (GB)
Title: Improvements in or relating to device for dispensing liquids
IPC: B67D1/00
Filed: 1946-02-15
Abstract: 631,170. Dispensing mixed drinks; separating measured quantities from bulk. DOLE VALVE CO. Feb. 15, 1946, No. 4794. Convention date, Feb. 2, 1945. [Classes 106(v) and 116] [Also in Group XXIX] A dispensing head and nozzle for dispensing a mixed drink (of syrup and carbonated water) in which the syrup is metered and the two components delivered in separate streams to mix in a cup outside the apparatus comprises a hollow body built up of members 11, 12, 13 and 14, in which slides a ring shaped member 17 in which is secured the metering chamber 18 for the syrup. This chamber has an outlet 20 flanged externally at 40 and normally closed by the end of a rod 21 secured at its upper end to a heavy member 22 inside the syrup tank 10 and having a chamfered surface 50 adapted to cooperate with a surface 51 in the body member 11 to cut off the syrup chamber from the tank when the drink is being dispensed. The outside of the chamber 18 has a multi-start thread 23 the capillary passages formed thereby communicating at their upper end by a passage 26 with a water valve 27 and at the lower end opening into a space between the lower part of the chamber 18 and the member 17. A carbonated water supply under pressure is taken to the space 34 in the valve 27 and on pressing the plunger 31 to the left, water is forced into the dispensing head through passages 33, 32, 26. The pressure of water against the end of the member 17 depresses this and the chamber 18 against the spring 46, opening the valve 20 to discharge syrup and closing the valve 51, 50, the water being discharged through the capillary passages 23. A nozzle 35 having a sealing ring 45 is a push fit in the lower part of the member 17 and has two concentric passages defined by tubes 36 and 37 the latter reducing in diameter towards the lower end. The tube 36 fits inside a flange 39 on the base of the chamber 18 and has an internal diameter less than that of the flange 20 so that the viscous syrup falls clear of the tube 36. The water, discharged in a whirling manner is diverted downwardly by vanes 41a, Fig. 2, between the walls 36, 37 of the nozzle there being, preferably at least as many vanes as outlets from the capillary passages 23, and the vanes 41 a-c being longer than the vanes 41 d-f. The vanes secure the two parts 36, 37 of the nozzle together. The nozzle may be of transparent plastic. This construction is stated to be hygienic, the area on which syrup may lodge being a minimum, easily cleaned and to reduce foaming.
Patent GB-334487-A (GB)
IPC: B65G27/00
Filed: 1930-02-12
Abstract: 334,487. Boileau, L. Feb. 18, 1929, [Convention date]. Jigging conveyers. -In means for connecting adjacent sections of a jigging conveyer of the kind in which a how member c pivoted to a plate a secured to one section is swung over a plate b secured to the next section, the bow is locked in the connecting position by the engagement of a bolt d with a recess e between the plates. The bolt is formed with a reduced portion d<3> which can just pass through the gap s leading to the recess e. When the bolt is in the recess, it is turned by its handle k to force the circular ends d<1> of the reduced part into engagement with the walls of the recess. The bolt bay be held in this position by the engagement of a pin f in an aperture h.
Patent GB-1256185-A (GB)
Title: Hop picking machine
Inventor: WOITT ALFRED
IPC: A01D46/02
Filed: 1970-02-02
Abstract: 1,256,185. Hop picking. FILPER CORP. 2 Feb., 1970, No. 4959/70. Heading A1F. A hop picking machine comprises two pairs of opposed substantially vertical picking belts 24, each pair arranged to form a downwardly converging wedge shaped vine receiving space 22 and mounted in endless chains 30 so that the front of the belt is slightly higher than the rear, and having outwardly projecting U or V shaped picking fingers 34. The belts move so that their inner runs provide a cooperative rearward movement. Two rubber faced contra rotating rollers 56 arranged in a vertical narrow V configuration grip the vine stem and move the vine forwardly faster than the speed of machine travel on the ground, so holding the vine against, removal from the ground and progressively laying the stripped vine on the ground longitudinal with the vine low under the machine. A cutting and positioning unit 74 mounted above and forward of belts 24 comprises a bifurcated base 76 supporting two inwardly resiliently biased moving belts 108 gripping and drawing the vine tops rearwardly onto a reciprocating cutter bar 74, and then into the receiving end of space 22. A longitudinal axis roller 74 is mounted behind cutter bar 126 acting as a guide and supporting for trellis wire 72. Hops removed by the belts 24 are transported on conveyors 38, 36 and 48. Belts 24, rollers 56 and cutting unit 74 are power driven by hydraulic motors.
Patent GB-233311-A (GB)
Title: Improvements in and relating to the traverse mechanism of copwinding or like machines
IPC: B65H54/14
Filed: 1925-02-23
Abstract: 233,311. Joyce, J. D May 1, 1924, [Convention date]. Winding - machines. - In machines for winding double taper-ended cops for use in loom shuttles and the like of the kind wherein the taper of the nose' of the cop is governed by a shaper, which during the winding of the base engages a progression wheel mounted on a traverse bar formed in two parts movable relatively to each other, a tension spring 11 connects the parts 3<a>, 3<b> of .the traverse bar and a stop is provided to limit the movement of the part 3<b>. The part 3<a> is provided with a plate 5 secured to a shaper rod 8. and the part 3<b> with a slide movable within the guide formed by the edges 6 of the plate 5, so that, as the thread guide is fed along the screw by the progression wheel 24, a finger 25, by its movement along an adjustable shaper 26, allows the spring 11 gradually to draw the part 3<b> from the position shown in Fig. 1 into alignment with the part 3<a>, thereby forming the base of the cop, the winding thereafter proceeding regularly.
Patent GB-554747-A (GB)
Title: An improved construction of electric cable for use with currents of high frequency
IPC: H01B11/18
Filed: 1942-04-15
Abstract: 554,747. Electric conductors ; uniting metal to ceramic materials. BRITISH INSULATED CABLES, Ltd., BLACKBURN, R., and CARSTEN, H. R. F. April 15, 1942, No. 4990. [Class 36] A high-frequency cable comprises concentric conductors spaced by insulating discs, each disc being attached to one of the strips forming the outer conductor or screen by providing its outer edge with a metal layer and soldering it to the strip. Each disc has a recess or recesses to receive the inner conductor or conductors by a lateral movement, and the discs are spaced either singly or in pairs. In Fig. 2, the inner wire 1 is received in recesses 5 in spacing members 4 used in pairs, each member being secured to one of the two strips 2 which form the outer conductor and are held together by insulating tape 3. Where the members 4 are used alternately, each member occupies substantially more than half the area enclosed by the strips 2, each member having a straight edge 6, Fig. 4, with straight slot 7, or a curved edge 8, Fig. 5, with open slot 7. Each member is formed of ceramic material the curved outer edge of which is metallized by a deposit of silver &c. from a colloidal solution or suspension, the deposit being fired on the ceramic body. The deposit may be strengthened with a layer of copper &c. and is then soldered to the strip 2 which may consist of copper tinned at the region of attachment.
Patent GB-670709-A (GB)
Title: Improvements in and relating to vapour proof electric lighting fittings
IPC: F21V31/00
Filed: 1949-02-24
Abstract: 670,709. Electric lighting fittings. ALDRICH, E. C., and STRONG ILLUMINATING ENGINEERING CO., Ltd. Feb. 24, 1950 [Feb. 24, 1949]. No. 5050/49. Classes 75(ii) and 75(iv). A vapour-proof electric lighting fitting, of the kind comprising one or more fluorescent or other electric lamp or lamps, associated electrical equipment, and one or more reflectors enclosed in a lantern having an open side provided with one or more hinged or detachable cover window or windows adapted to be secured and sealed in closed position, is provided with one or more inlet valve or valves for introducing air into the interior of the fitting for raising the internal air pressure slightly above atmospheric pressure to prevent entry of deleterious vapours and gases past the sealing means. A glazed frame 4, Fig. 2, is adapted to make a sealed closure with a base plate 1 of the body A of the fitting which carries holders 2a for electric lamps 2 and a housing 3 for the associated electrical equipment, and is provided with an air inlet valve 11, of a kind used for inflating pneumatic tyres of motor vehicles, for charging the fitting with air at superatmospheric pressure. The glazing 4b is secured to the frame 4 by a hollow frame 6 which receives the ends of screws 5 threaded through perforations in the base 4a<SP>1</SP> of a flanged recess 4a. A substantially air-tight closure of the fitting is effected by the engagement of a flange 7 on the frame 4 with rubber or other packing gaskets 1b in a channel in the base plate 1, the frame 4 being held against the plate 1 by threaded pins 9 carried by pins 8a rotatable in sleeves 8 fixed to the frame 4, the pins 9 being secured, by wing nuts 10a, in slots in brackets 10 fixed to the body A. By releasing the wing nuts 10a at one side of the hinge pins 8a on the opposite side to give access to the lamps. The fitting may be provided with a pressure gauge for indicating the internal pressure.
Patent GB-184509-A (GB)
Title: Closure for bottles, jars or the like
IPC: B65D41/24
Filed: 1921-05-18
Abstract: 184,509. Thompson, H. G., and Stevenson, A. H. May 18, 1921. Capsules.-A closure for a bottle, jar, &c. consists of a cap or lid 1, Fig. 2, of cardboard, stout paper, &c. having a depending edge and coated or impregnated with casein, which has waterproofing properties and also acts as an adhesive when heated, the cap being applied over the mouth of the container and molded at 2 by heat and pressure to the shape of the lip or rim 3 and the neck 5 of the container. Specification 16148/15 is referred to.
Patent GB-569153-A (GB)
Title: Improvements in or relating to the preparation of bituminous materials resembling natural asphaltites
IPC: C10C3/04
Filed: 1943-04-02
Abstract: Hard bituminous materials, with a softening point of 300-350 DEG  F. and almost completely soluble in carbon disulphide, similar to natural asphaltites and suitable for the manufacture of electric storage battery boxes, baking enamels and japans are made from asphalt base petroleum oils by cracking, distilling under reduced pressure, and then oxidizing the resultant pitch.  A heavy asphaltic base petroleum oil of the type derived from Venezuelan, Lagunillas, Creole or Tia Juana crude oil, is cracked by passing through a cracking furnace at a temperature of 900-950 DEG  F. and a pressure of 1200 lbs. per sq. in., the volatile products being worked up to naphtha and gas oil fractions.  The tarry residue is then distilled under a pressure of 10 mms. of mercury till a pitch with a softening point of 120-140 DEG  F. is produced, which is transferred to an oxidizing tower and air or another oxidizing gas is blown through the mass at a temperature of 350-550 DEG  F. for a period of 20-50 hours till the product has a softening point of 300-350 DEG  F.
Patent GB-344192-A (GB)
Title: Improvements in or relating to electrical condensers
IPC: H01G4/258
Filed: 1930-02-17
Abstract: A condenser comprises a mixture made of 1 to 5 per cent of gum mastic, 15 to 20 per cent of ceresin with paraffin wax as a dielectric.  Specifications 1626/12 and 330,149, [both in Class 38 (ii), Electric currents, Converting &c.], are referred to.
Patent GB-705625-A (GB)
Title: Process for working up pentaerythritol solutions
IPC: C07C31/24
Filed: 1952-02-28
Abstract: Pentaerythritol solutions, produced by the alkaline condensation of formaldehyde and acetaldehyde are worked up, if desired after preliminary treatment to recover a part of the pentaerythritol and where necessary after neutralisation, by heating in a pressure apparatus to at least 150 DEG C. preferably 220 to 260 DEG C., the solid reaction products thus formed being separated and solid pentaerythritol or mixtures of pentaerythritol and dipentaerythritol being recovered from the solution by known methods, such as concentration and crystallisation.  When acid mother liquors, for example sulphuric acid mother liquors, are treated they may be neutralised prior to heating under pressure with, for example, calcium hydroxide, sodium carbonate, sodium hydroxide solution or other bases.  The calcium sulphate formed can be filtered off prior to or after heating under pressure.  In an autoclave the reaction may be carried out at a pressure of from 15 to 200 atmospheres whilst in a pressure tube it may be carried out at a pressure of from 15 to 50 atmospheres.  Preferably a reducible compound, for example an oxide of copper, mercury, cadmium or zinc, is added to the mixture before the pressure treatment.  In the examples (a) the mother liquor, left after as much pentaerythritol as possible has been crystallised from a solution produced by the alkaline condensation of formaldehyde and acetaldehyde, is treated with calcium hydroxide and then heated under pressure, the mixture is filtered and further amounts of pentaerythritol were obtained by evaporation in stages; (b) the solution obtained by condensing acetaldehyde with formaldehyde is treated with cupric oxide and then heated under pressure; the mixture is filtered and concentrated and pentaerythritol and dipentaerythritol crystallises out, the mother liquor being subjected to further heating with cupric oxide under pressure with some more of the original condensation solution; (c) a pentaerythritol condensation solution produced by the alkaline condensation of formaldehyde and acetaldehyde mixed with pentaerythritol mother liquor is treated with cadmium oxide and heated under pressure; the solution is filtered and then evaporated until pentaerythritol and dipentaerythritol crystallise out; the mother liquor is then mixed with some more condensation product and the process repeated.