baber/WOPTO huggingface dataset:
Patent GB-1457865-A (GB)
Title: Shield type roof support unit for longwall faces in mines
IPC: E21D23/04
Filed: 1974-05-28
Abstract: 1457865 Mine roof supports BOCHUMER EISENHUTTE HEINTZMANN & CO 28 May 1974 [20 June 1973] 23659/74 Heading E1P In a mine roof support comprising a caving shield 4 hingedly attached to at least one sleeper 2 and supported by a variable length strut 7, the roof-supporting plate 6 pivotally attached to the free end of the shield 4 is adapted to be positioned adjacent the longwall face 20 irrespective of the extended height of the support by means of a slide 8 which is connected at the goaf end to the free end of the piston rod of the advancing ram and is provided at the face end adapted to be connected to the conveyor with a telescopic extension 23 lockable in a plurality of different positions of extension. The slide comprises hollow sections 9 interconnected by transverse members 10, 11 and extension 23 is locked therein by bolts 30 engaging complementary recesses 27, 29 therein respectively.
Patent GB-1178270-A (GB)
Title: An Apparatus for the Continuous Finish Treatment of Knitted Fabric Webs.
IPC: D06C29/00
Filed: 1967-05-23
Abstract: 1,178,270. Textile treating apparatus. ASAHI CHEMICAL INDUSTRY CO. Ltd. 23 May, 1967 [23 May, 1966], No. 23839/67. Headings D1L and D1S. [Also in Division F4] Apparatus for treating knitted fabric webs comprising a preparatory zone, a steaming zone and a hot-air treating zone positioned one after another and each fitted with conveyor means for. conveying the web successively through said zones, is characterised by the provision of overfeed means from the first to the second conveyor and from the second to the third conveyor, and mechanical beating means for beating the second and third conveyors for keeping the web in oscillation in a substantially perpendicular direction to the plane of said conveyors. Web 17 is taken from stack 17a and is fed on a pervious conveyor belt 16 on rolls 14, 15 through a preparatory zone 11 and thence on to a second pervious conveyor belt 18 on rolls 19, 20, 21. Belt 18 conveys the web 17 first through a steaming chamber 23 where a number of steam jets are directed towards the upper and the lower surfaces by nozzles 31, 32 fed from supply pipe 33, the steam being exhausted through duct 35 by discharge blower 36. As the web 17 leaves chamber 23 it is subjected to a beating action from beneath the belt 18 by means of a beater 42 which can be mechanically or electromagnetically operated. The belt 18 then carries the web into a hot-air processing chamber 22, mainly for drying purposes, where the web is discharged on to a third pervious conveyor belt 58 which is also subjected to a beating action by a beater 65 which may also be mechanically or electromagnetically operated: Hot-air is circulated in chamber 22 by a fan 70 having a heating element therein and driven by motor 69. In an alternative arrangement (Fig. 4, not shown) the hot air may be directed on to the web through a large number of perforations in a pair of opposing walls on opposite sides of the web path. The conveyors are driven by suitable belt drives from an electric motor 24 through a stepless variable speed gear 25, the pulley sizes being arranged to give the required overfeed from the first to the second conveyor and from the second to the third conveyor. Alternatively the pulleys may be coned so that the overfeeding can be adjustable. The speed ratio between the first and second conveyors may be from 1:0.95 to 1:0.5 and that between the second and third conveyors from 1:0.95 to 1:0.8; and the periodicity of the beater may be from 50 to 5000 per min. at an amplitude of from 1 to 10 mm.
Patent GB-900029-A (GB)
Title: Improvements in root-crop harvesters
IPC: A01D25/04
Filed: 1960-07-08
Abstract: 900,029. Root-crop harvesters. BRUCE, J. M. July 8, 1960, No. 23898/60. Class 6(3). Relates to a harvester for turnips or beets wherein the crop is topped and tailed by a series of power-driven disc-coulters at different levels. According to the invention an attachment is mounted adjacent to the rearmost disc-coulter 4 comprising an open steel framework 1, 2 inclined upwardly and rearwardly and over which sweep tines 12 carried by a pair of endless chains 10, 11 the crop being delivered to a fixed gridded basket 17 through which pass other gridded baskets 18 carried by an elevator 26 which delivers the crop to a vehicle alongside. The chains 10, 11 pass around sets of sprockets 6-9 of which one in each set is driven by a jointed shaft 15, 19, from gearing 21 on the main frame.
Patent GB-688064-A (GB)
Title: Improvements in or relating to the reactivation of spent activated carbon
Inventor: CHIVERS STEPHEN OSWALD
IPC: C01B31/08
Filed: 1950-09-29
Abstract: Spent active carbon is reactivated by thoroughly mixing it with a granular inert material so that it becomes coated thereon and heating the resultant mixture with agitation in the pressence of oxygen to a temperature, e.g. 350-550 DEG C, at which the impurities are burnt. Pitch coke or petroleum coke of size +10 to -100 mesh is damped with water and mixed with 6-10 per cent spent carbon. After heating for 6-20 mins. the coke and carbon are agitated with water and the resulting slurry passed through a 100 mesh screen, which retains the coke for re-use, while passing the water and carbon, which are separated by sedimentation or filtration.  The coke and carbon may alternatively be separated by decantation or gravity means. Specification 684,036 is referred to.
Patent GB-1182982-A (GB)
Title: Cooling Fan Drive for Internal Combustion Engines.
IPC: H02K49/04
Filed: 1968-05-21
Abstract: 1,182,982. Magnetic clutches. NSU MOTORENWERKE A.G. 21 May, 1968 [24 May. 1967], No. 24062/68. Heading H2A. A temperature-responsive permanent magnet eddy-current clutch between an engine cooling fan 7 and a continuously rotatable driving shaft 3, on which the fan is freely journalled, comprises a disc 1, incorporating one or more permanent magnets 8 in its periphery, axially movable on but rotatably fast via a cross-pin 4 and slot 5 connection with the shaft 3, a thermally responsive expansible element 10 attached to the outer end of the shaft 3 in the air slip-stream from the engine radiatior (not shown), acting on increased temperature to thrust via its piston 11 on the cross-pin 4 to axially move the disc 1 into a drum-shaped fan hub 13, having an inserted laminated armature stack 9, to provide a progressive magnetic coupling of the clutch, an opposing spring 12 serving to disengage the clutch on temperature fall. The disc 1 and drum 13 are of non-magnetic material such as aluminium or plastics, the hub 13 having additional cooling fins 13 to dissipate heat generated by the eddy-currents during clutch engagement.
Patent GB-403731-A (GB)
Title: Improvements in or relating to traffic control signals
IPC: G08G1/082
Filed: 1932-06-30
Abstract: 403,731. Road signals for controlling traffic. AUTOMATIC ELECTRIC CO., Ltd., Strowger Works, and RENSHAW, P. B., Brookwood, Alder Road, West Derby, both in Liverpool. June 30, 1932, No. 24078/33. Divided on 403,720. Drawings to Specifications. [Class 118 (ii).] In a road traffic control system in which a master controller regulates the signals at a number of intersections, the master controller sends signals to the individual units only when a signal change is to be made ; it sends signals to the various units at different times during its cycle and the same type of control signal is received by each local unit only once during each cycle of the local unit. The description is identical with that appearing in Specifications 403,720 and 403,732. Specification 356,102 also is referred to.
Patent GB-919119-A (GB)
Title: Chromatography analysis apparatus and method
IPC: G01N30/84
Filed: 1960-07-11
Abstract: The eluent from individual chromatography columns 10 is divided into segments by inert gas supplied by pipe 24 and is stored in helical coils 40.  After the stripping operation the collecting tube is disconnected from the column <PICT:0919119/III/1> and is connected up to a colorimetric analysis apparatus which is described in Fig. 3 (not shown).  The pump 16, which may also be used in the analysis apparatus is described in Specification 817,070.
Patent GB-782776-A (GB)
Title: Improvements in or relating to the regulation of direct-current motors
IPC: B65H23/18
Filed: 1955-08-22
Abstract: 782,776. Control of two D.C. motors. AKT.- GES. BROWN, BOVERI & CIE. Aug. 22, 1955 [Aug. 21, 1954], No. 24143/55. Class 38 (3). [Also in Group XXXV] The invention relates to the automatic control of D.C. machines for winder reels, whereby the tension and speed of material being wound are maintained substantially constant. During winding of material 24 from a reel 21 to a reel 23, a D.C. machine 2 acts as a winding motor driving reel 23 and a D.C. machine 1 acts as a braking generator driven by reel 21, the machines having their armatures excited from a common D.C. generator 3 and having respective fields 5, 6 differentially energized as follows. A signal representing the difference of the armature currents of machines 1, 2, and hence the difference of their torques, is derived from equal resistors 10, 11 in the armature circuits for comparison with a reference set on a potentiometer 12. The resulting error is applied over resistors 29, 30 and amplifying tubes 27, 28 to control " push-pull gas discharge tubes 7, 8 energized over transformers 25, 26 from an A.C. source, whereby their respective D.C. outputs to field windings 5, 6 connected in their respective anode circuits are differentially varied to cause an increase in energization of field 6 and a corresponding decrease in that of field 5 as winding proceeds. The torques of machines 1, 2 are thus increased and decreased respectively to compensate for changes in diameter of the reels, whereby the tension and linear speed of the material are maintained substantially constant. The speed maintained is set by a potentiometer 9 in the field circuit of machine 3, and the whole system can be reversed by switches 18, 19. Friction is compensated by adding to the armature current difference signal a signal derived from tachometers 13, 14 driven by the machines and 'representing the difference of their speeds, the compensated signal being a true measure of the torque difference of the machine. In order to improve speed regulation during the wind, resistors 16, 16a may be alternately connected across resistors 29a, 30 by operation of a relay 17 at some instant in the winding cycle, whereby a desired asymmetrical control of the fields 5, 6 may be obtained. The said instant may be at equal diameter of the reels or at reversal of the reels, the relay being operated in dependence on the tachometer difference signal or by the reversing switch as the case may be. The resistors may alternatively take the form of potentiometers which are continuously varied as winding proceeds by an auxiliary motor whose direction is set by the reversing switch. The Specification states that the push-pull gas discharge tubes may be replaced by vacuum tubes, magnetic amplifiers, dynamo-electric amplifier machines or mechanical amplifiers.
Patent GB-796065-A (GB)
Title: Pipe joints
Inventor: CLIFT ALFRED
IPC: F16L47/22
Filed: 1955-08-23
Abstract: 796,065. Pipe joints. STEWARTS & LLOYDS, Ltd. June 4, 1956 [Aug. 23, 1955], No. 24208/55. Class 99(1). Two flanged pipes a of metal or synthetic plastic are joined by a sleeve d, Fig. 1, made of polyvinyl chloride, polystyrene or similar material having the properties of stretching and, after application of heat, contracting to its previous condition. The sleeve d is stretched over the flanges b of the pipes a, and after heating to a temperature between 100‹C. and 120‹C. the sleeve contracts as in Fig. 2, fits tightly about the pipes and flanges, and compresses rubber &c. rings c.
Patent GB-507458-A (GB)
Title: Improvements in or relating to paring and coring tool
IPC: A47J17/02
Filed: 1938-08-17
Abstract: 507,458. Peeling and coring vegetables &c. PLATERS & STAMPERS, Ltd. Aug. 17, 1938, No. 24209. Convention date, March. 3. [Class 28 (ii)] A peeling and coring tool is provided with a finger rest to relieve irritation and fatigue of the index finger of the user. As shown, the blade 10 has two transversely convergent sides 11, 12, the side 11 being struck outwardly at 17 to form a cutting edge, and provided on its other edge adjacent to the handle 13 with an ear 20, which may be dished, to provide a bearing surface for the index finger. The blade is provided with wings 14 which encircle a cap or ferrule 15 on the handle, tacks or screws 16 securing the wings and ,ferrule,to the handle, which may be provided with ridges 21 to prevent the hand from slipping. The end of the blade is pointed at 18 for use as a coring or scooping device.
Patent GB-1059857-A (GB)
Title: Means for protecting semi-conductor elements of pnpn-type in regulators
IPC: H02M1/00
Filed: 1964-06-11
Abstract: 1,059,857. Protecting semi-conductor circuits. ALLMANNA SVENSKA ELEKTRISKA A.B. June 11, 1964 [June 12, 1963], No. 24214/64. Heading H3T. [Also in Division G3] An arrangement for protecting a thyristor against overvoltages comprises a voltage divider including an impedance 7, which, when a transient appears fires the thyristor due to the non- proportionate voltage distribution, hence transferring the voltage to the load. The impedance 7 may be a resistor or the secondary winding of a transformer to which the control pulses are fed. In an alternative arrangement (Fig. 4, not shown), an impedance is in series with the cathode, the voltage rise across which is fed to the firing device 5 to render the thyristor conductive. The arrangement shown is applicable to a control circuit where the device 5 normally maintains the voltage across the load 2 constant.
Patent GB-1133830-A (GB)
Title: Method of manufacturing mechano-electrical transducer
IPC: H01L29/84
Filed: 1967-05-24
Abstract: 1,133,830. Semi-conductor devices. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 24 May, 1967 [25 May, 1966], No. 24243/67. Heading H1K. A pressure sensitive semi-conductor device is produced by providing a layer of a deep level impurity on the surface of a body of semiconductor material, irradiating the body, then thermally diffusing the impurity into the body and providing electrical connections. The sensitivity of the device increases with the dose of radiation until a peak value is reached, Fig. 2 (not shown). As shown, Fig. 1, a layer 12 of copper is plated on to a silicon body 11 which is then irradiated using an electron beam. The body is then heated in hydrogen to diffuse-in the copper, and gold (containing antimony) is alloyed to the body to form electrodes 13. The deep level impurity may be gold, copper, cobalt, nickel, iron or zinc if the semi-conductor material is silicon or germanium; the electrodes may form ohmic or non ohmic contacts; the irradiation may also be by means of a neutron beam, and may be applied to one side only of the device. The use of GaAs or GaP as the semi-conductor material is also mentioned.
Patent GB-203894-A (GB)
Title: Improved method of treating fibrous material
IPC: D01C1/02
Filed: 1922-09-07
Abstract: Fibrous material, particularly cocoa-nut fibre employed in the production of artificial horse hair, is treated firstly by dyeing or dyeing and mordanting; secondly by coating with a gelatinous, glutinous or resinous solution of a colouring matter, this treatment being designed to produce a sheen and an intensification of the first colour; and thirdly by applying a second coating with a gelatinous or the like solution of a colour which is termed "complementary" and which will produce, both coatings being more or less transparent, a true black.  If the colour, after the application of the first coating, has not been correctly p  estimated, it may be necessary to apply still another coating to obtain the desired effect.  According to an example the fibre is first dyed black with a basic aniline dyestuff and dried.  It is then coated with a solution of glue and water black when the colour will become grey, blue, or brown.  This is then corrected by a glue solution or an appropriate pigment, for example brown or orange in the case of the grey tint.
Patent GB-421884-A (GB)
Title: Improvements in and relating to electric vacuum cleaners
IPC: A47L9/26
Filed: 1934-08-23
Abstract: 421,884. Vacuum cleaners. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Aug. 23, 1934, No. 24337. Convention date, Aug. 25, 1933. [Class 8 (i)] [See also Group XXV] The electric cord 4 is suspended from the handle of a vacuum cleaner over hooks 5, 6. The lower hook is fastened to the handle; the upper hook is integral with a band 9 slidable on the handle, and held in one of two positions by a spring-pressed latch 12 pivotally supported on the band and having a finger 14 engaging one of two holes in the handle.
Patent GB-818222-A (GB)
Title: Electro-magnetic devices
Inventor: HAMILTON RALPH FREDERIC GILBER
IPC: H02K7/102
Filed: 1955-08-25
Abstract: 818,222. Electromagnetic brakes. PLESSEY CO. Ltd. Aug. 31, 1956 [Aug. 25, 1955], No. 24435/55. Class 103 (1). [Also in Group XXXV] In a polyphase electromagnet for releasing a motor-shaft brake 13, 16 against a spring 17, each phase is split between diametrically opposite poles 19 on the strip wound stator core 18 to prevent chatter. As shown for three phases, the stator core has six axial poles carrying the phase coils 20, 23; 21, 24; and 22, 25 respectively.
Patent GB-1194634-A (GB)
Title: Electrical Cable and Method for the Preparation Thereof
Inventor: MILDNER RAYMOND CHARLES
IPC: H01B13/32
Filed: 1968-05-22
Abstract: 1,194,634. Cables. DOW CHEMICAL CO. 22 May, 1968 [23 May, 1967], No. 24462/68. Heading H1A. A multi-conductor cable 10 comprises a plurality of insulated metallic conductors 11 surrounded by a protective jacket 16, which comprises an inner layer 20, of resinous foam material, in a metallic shield 21, an enclosing adhesive layer 24 and an outer covering 25, the interstitial spaces 13 between the conductors being filled with a closed cell resinous material 14. The conductors may be single or multiple strand conductors and may comprise a plurality of twisted pairs of conductors. The cable may be made by coating the insulated conductors with a foamable material, assembling the conductors into a bundle, and foaming the coating. Alternatively a number of expandable resinous microspheres may be positioned within said interstitial spaces and expanded by heating. A metallic shield having a foamable coating on at least one side is placed around the conductor, the coating foamed, and the whole then covered by an extruded outer layer.
Patent GB-367337-A (GB)
Title: Signal system for vehicles
IPC: B60Q5/00
Filed: 1930-08-15
Abstract: 367,337. Retractive switches for the steering wheels of motor vehicles. ROBICHON, G. H., Three Rivers, Quebec, Canada. Aug. 15, 1930, No. 24503. Convention date, Aug. 15, 1929. Void [Published under Sect. 91 of the Acts]. [Class 38 (v).] A switch for a motor vehicle comprises a spring arm 20 held by its own resiliency between two fixed contacts 25 and adapted to be depressed or raised into engagement with one of the contacts 25 to complete one or other of two signal circuits by pushing or pulling a knob 28. The signal circuits might be for the horn and for a signal at the rear of the vehicle respectively. The knob 28 is mounted on a spindle 26 which slides longitudinally and which is pivoted to the arm 20 or 27.
Patent GB-1399491-A (GB)
Title: Process for preparation of 3-hydroxy-2-alkyl-4-pyrone
IPC: C07D309/40
Filed: 1972-05-25
Abstract: 1399491 Flavouring materials DAICEL LTD 25 May 1972 [26 May 1971 22 Dec 1971] 24578/72 Heading A2B [Also in Division C2] The compounds 3-hydroxy-2-methyl-4- pyrone ("maltol") and 3-hydroxy-2-ethyl-4- pyrone ("ethyl maltor") are additives for improving the flavour and taste of foodstuffs. Reference has been directed by the comptroller to Specification 1057446.
Patent GB-1175445-A (GB)
Title: Primary Cells with Plastics Envelopes
Inventor: KAROBATH ERNST
IPC: H01M50/179
Filed: 1967-05-26
Abstract: 1,175,445. Terminal structures for cells having plastics envelopes. TELEPHON-UND TELEGRAPHEN - FABRIKS - A.G. KAPSCH & SÍHNE IN WIEN. 26 May, 1967 [27 May, 1966], No. 24648/67. Heading H1B. A can-type primary cell is completely enclosed in a plastics envelope, and has terminals formed from sheet metal, each having a first portion outside the envelope, a second portion passing through the envelope, and a third portion inside the envelope and contacting the associated electrode, the second portion being formed with a series of apertures, the plastics material on each side of the metal sheet being united and drawn tightly together by portions of the material extending through the apertures, the extent of embedding measured along the surface of the terminal between inner and outer surfaces of the envelope being substantially greater than the thickness of the sheet metal in the region of embedding. Fig. 1 illustrates such a cell in general: the cell comprises a cup (e.g. zinc) electrode 1, a rod (e.g. carbon) electrode 2, a plastics envelope 3 of a thin gas-permeable material, e.g. high-pressure polyethylene, in the cylindrical part, and of a gas- and liquid-tight thick material, e.g. low-pressure polyethylene, at top 4 and bottom 6, and upper 5 and lower 7 terminals according to the invention. Fig. 4 shows a preferred upper terminal in which the central section 50b, containing the holes 50d through which the plastics " rivets " 4a pass, is conical, to increase the embedded area, and the lower rim 50c contacts the rod electrode 2 via the resilient flange 2b of the electrode cap 2a. Suitable structures (not shown) for the terminal 7 contacting the can electrode are also described.
Patent GB-1429275-A (GB)
Title: Apparatus for the automatic formation of packages formed of printed products
IPC: G05D7/06
Filed: 1973-05-23
Abstract: 1429275 Spray producers; coating apparatus FEHR & REIST AG 23 May 1973 [23 May 1972] 24728/73 Headings B2F and B2L [Also in Divisions B8 and Fl] Apparatus for the automatic formation of packages 6 of printed products from a stream of products 5 conveyed in an imbricated stream on a conveyor 1 includes a nozzle 7 for directing a spray of liquid bonding agent into the products to stabilize the package formed, the nozzle being fed from a container 9 of liquid agent subjected to air pressure which is varied in accordance with the speed of the conveyor. As shown an electrically controlled valve 12 is interposed between a constant pressure source line 14 and the container line 16. The valve 12 is connected by a lead 19 to a generator 17 driven by the conveyor roller 2 whereby varying speeds of the conveyor result in varying electric signals being applied to the valve 12 which in turn varies the pressure in the line 16 so that the quantity of liquid supplied to the nozzle 7 connected to the container 9 varies in accordance with speed of the conveyor. As described the conveyor carries newspapers which are to be stacked on a further conveyor 3 and at least the upper newspapers are sprayed with adhesive from the nozzle 7 in order to stabilise the stack. The nozzle 7 includes an eleotrically actuated valve 22, Fig. 2a, which is controlled by means sensing the presence of newspapers on the conveyor 1 and includes an annular air jet 32 fed from the line 14 via a reducing valve 34 and also includes elongated shaping air nozzles 35 to flatten the spray.