baber/WOPTO huggingface dataset:
Patent GB-772953-A (GB)
Title: A method of and a circuit for stabilising a valve amplifier by compensating for variations in the cathode emission
IPC: H03F3/36
Filed: 1953-09-01
Abstract: 772,953. Valve amplifying circuits. TESLA NARODNI PODNIK. Sept. 1, 1953 [Sept. 5, 1952], No. 24107/53. Class 40(6) A valve amplifier in which the anode current of the valve is independent of changes in cathode emission (e.g. due to variations in heater voltage or to ageing of the valve) comprises a valve having more than one grid electrode, the control grid being other than the one nearest the cathode, and a resistor, inserted in the cathode circuit of the valve and having a resistance chosen in accordance with a formula given in the Specification to achieve the desired result. Fig. 1 shows the circuit in its simplest form. By a correct choice of the cathode resistor 5, the anode current ia may be made independent of the heater voltage ef. In a modification, Fig. 2, showing the circuit used as a direct-coupled amplifier compensation for variations of the anode-supply voltage is also provided, one side of the input circuit being connected to a selected point 24 on the potentiometer chain connected across the anode-supply source. Figs. 3, 4, 5, 6 and 12 (not shown) show arrangements using pentode valves, the arrangement of Figs. 5 and 6 (including resistors for effecting self-biasing of the first grid. Figs. 7 to 11 (not shown) show similar arrangements using heptode valves.
Patent GB-1139433-A (GB)
Title: Filled polyester moulding composition
IPC: C08K3/00
Filed: 1966-05-31
Abstract: 1,139,433. Filled polyester resins. ALLMANNA SVENSKA ELEKTRISKA A.B. 31 May, 1966 [2 June, 1965], No. 24166/66. Heading C3P. A moulding composition with a filler in powder and/or fibrous form and with an unsaturated polyester resincomprising an unsaturated alkyd resin and an ethylenically unsaturated monomer as a binder is prepared by adding the unsaturated alkyd resin, the ethylenically unsaturated monomer, a catalyst for polymerization reactions of unsaturated groups and at least one polyfunctional isocyanate to the filler to form a resinous mixture before the unsaturated alkyd resin and the isocyanate have reacted at all or to any substantial degree. and thereafter allowing the alkyd resin and the isocyanate to react with each other completely or to a substantial degree so that the resinous mixture is non-sticky without the unsaturated groups in the alkyd resin and the monomer reacting with each other so that they are available for reaction during use of the resinous mixture for the manufacture of moulded products. Suitable isocyanates are toluylene-2,4- or -2,6-diisocyanate, dimerized toluylene-2,4- diisocyanate, diphenyl methane-4,4<SP>1</SP>-diisocyanate, naphthylene-1,5-diisocyanate, triphenylmethane - 4,4<SP>1</SP>,4<SP>11</SP> - triisocyanate, hexamethylene - 1,6 - diisocyanate, an isocyanate of formula and an isocyanate of formula Also used in the examples are: a polyester prepared from isophthalic acid, propylene glycol and maleic anhydride and a polyester prepared from phthalic acid anhydride, maleic anhydride or fumaric acid and ethylene glycol; styrene, diallyl phthalate and methyl methacrylate; tert-butyl perbenzoate, benzoyl peroxide and dicumyl peroxide; hydroquinone; zinc stearate, china clay, chalk, glass fibre flock, barium sulphate, titanium dioxide, sisal fibres, polystyrene, mica powder, sope stone powder, asbestos fibres, chloroparaffin, antimony trioxide and dolomite.
Patent GB-1151378-A (GB)
Title: Apparatus for Measuring a Property of Sheet Material
IPC: G01N23/16
Filed: 1966-05-31
Abstract: 1,151,378. Photo-electric measurement. INDUSTRIAL NUCLEONICS CORP. May 31, 1966 [June 1, 1965], No.24272/66. Heading G1A. The output of a nuclear radiation gauge measuring a property of a travelling sheet material, such as thickness, determines the frequency of a radio signal transmitted to a remote receiver where this frequency is compared with a reference frequency to provide a measure of the material property. The reference frequency may be varied in accordance with the ambient conditions at the gauge. The thickness measurement of paper during its manufacture is described, where an ionization chamber and krypton 85 source of #-radiation are positioned on opposite faces of the travelling continuous sheet of paper. The impedance of the ionization chamber - dependent upon the intensity of radiation received and hence the property - determines the frequency of an oscillator whose output is transmitted as a radio signal to a receiver positioned remotely and conveniently away from the manufacturing installation. A comparison of the frequencies of the radio signal and the reference produces a difference frequency signal - indicative of thickness - which is rectified and measured and/or recorded by a d.c. meter or whose frequency is measured directly by a frequency meter. The gauge scans back and forth across the width of the sheet and the final signal indicative of thickness may be averaged. The reference frequency may be controlled by a thermistor or a capacitor, whose capacitance varies with ambient conditions, positioned near the gauge to compensate for changes in ambient conditions or a similar capacitor may form part of the frequency determining circuit of the oscillator associated with the gauge.
Patent GB-277678-A (GB)
Title: Improvements in or relating to regulating devices for internal combustion engines
IPC: F02M59/30
Filed: 1927-09-15
Abstract: 277,678. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Sept. 18, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Cam-actuated pumps. - In a fuel pump for direct injection internal-combustion engines, two or more displaceable cams 3 of different contours are provided so that the particular cam appropriate to the desired spraying speed for a given load on the engine may be used to operate the pump. The cams are mounted on a slidable sleeve 2 which may be coupled to the fuel charging lever. An additional cam for backward travel corresponding to the largest cam for forward travel may be provided.
Patent GB-1429869-A (GB)
Title: Organophosphates and their use in a process for imparting a wash-resistant and dry-cleaning-resistant flameproof finish to textile fabrics
IPC: D06M13/292
Filed: 1973-05-22
Abstract: 1429869 Phosphate-(halomethyloxirane) condensates SCHILL & SEILACHER VERWALTUNG GmbH 22 May 1973 24357/73 Heading C2P [Also in Division D1] The invention comprises the product of reacting (A) a mixture of compounds of formula (wherein R is C 1-5  alkyl or haloalkyl, X is OH or halo, and n has an average value of 0À5-2À5) with (B) a (halomethyl)oxirane, and reacting the intermediate product thus obtained with (C) an optionally etherified N-methylol compound. As exemplified, (A) is a mixture obtained from 2,3-dibromo-1-propanol by reaction with POCl 3  (followed by saponification) or P 2 O 5 ; (B) is epichlorohydrin; and (C) is 2,4,6-tris- (hydroxymethylamino)-s-triazine. The inventive products are used to flameproof textiles and printing pastes (see Divisions B6 and D1).
Patent GB-1491105-A (GB)
Title: Method of manufacturing doors and arrangement therefor
IPC: B32B43/00
Filed: 1975-06-06
Abstract: 1491105 Collapsible door UTEC AB 6 June 1975 [14 June 1974] 24414/75 Heading E15 A method for making a door comprises movement of a flexible material in intermittent steps, a cross-member 3 placed in a predetermined position being connected to the material after each step. The method is carried out by apparatus comprising a stand with vertical guides 13 (Fig. 5) for the ends of a carrier 14. A cross-member 3 is placed on the carrier and the carrier raised by rack and pinion motors attached to each end of the carrier. Guide rollers 8 at the ends of the cross-member run in guides 29, 30 (Fig. 5). Flexible material is drawn from a supply at the bottom of the stand extends past the carrier 14 and is attached to feed means 28. When the cross-member has been raised to a predetermined position, tools 19 on beam 21 secure the material 16 to the cross-member. The feed means is then moved upwardly a step to lift the attached cross-member and draw up more material. The carrier can then position a further cross-member. In Figs. 6-8 (not shown) the feed means 28 has grab members 42 which catch each cross-member from the carrier after its attachment the previously attached cross-members stacking up on the lowermost one which is held by the grab members. In Figs. 9-11 (not shown) grabs (45) which hold the lowest attached cross-member are mounted on beam 21 and fed by movement of carrier 14. In Figs. 12-13 (not shown) grabs 50 hold the cross-member above the carrier, previous cross-member being stacked on pins 72 by movement of the carrier. The final door (Fig. 1) may have one or two sheets 2 of material and is liftable by ropes 7. The. material may be reinforced plastics.
Patent GB-380453-A (GB)
Title: Improvements in corn cleaning devices for axial thrashing or axial thrashing and straw reducing machines
IPC: A01F7/06
Filed: 1931-03-09
Abstract: 380,453. Thrashing-machines; cleaning grain. SCHLAYER, K., Wasserburg-on-Bodensee, Germany. March 9, 1931, No. 24516/32. Divided on 378,924. [Class 58.] A screw conveyer adapted to receive and deliver the grain from the thrashing devices of an axial thrashing machine is fitted with means for cleaning the corn. The screw 92 and the trough 91 in which it rotates are extended beyond the thrashing and straw reducing part of the machine casing and the trough extension is at one side expanded into a casing 95 provided with an inclined plate 96 on to which the grain is thrown by tossing plates 97 on the screw. A pipe 88 directs a blast of air from a blower 44 across this plate and this blast carries off light particles through a pipe 83. The heavy grain returns under the plate to the screw for further treatment. If additional winnowing is desired the grain may be conveyed by an elevator 100 to a further winnowing device 101. In a modification the plate 96 is omitted and an adjustable blast of air is passed longitudinally of the casing through the grain thrown up by the tossing plates. To scour or awn the grain rubbing plates 93 may be arranged between the screw convolutions to co-operate with friction plates.
Patent GB-637328-A (GB)
Title: Brick-making machine
IPC: B28B13/02
Filed: 1947-09-05
Abstract: 637,328. Brick-moulding machines. PAISLEY, J., and EASTWOODS FLETTONS, Ltd. Sept. 5, 1947, No. 24560. [Class 87 (ii)] In a brick machine of the type having a stationary mould 18, a bottom ejecting plunger 22, a top pressing plunger 16 and a reciprocating feed box 28, the back wall of the feed box is movable inwards of the box when the box is over the mould cavity to disturb the moulding' material and discharge it from the box to the mould. The invention is shown applied to a moulding and repressing machine which may have a single pair of moulds (as shown) or two pairs side by side for producing two bricks at once. The ejecting plungers 22, 23 are secured to a " drop box " 24 moved up and down by a cam 26 on the main driving shaft 12. Driving wheels 13 on each end of the shaft 12 have cam tracks 35 which move the feed box 28, through cam followers 34 and links 30-32, between a hopper 27 and the first mould 18. The crosshead 15 carrying the pressing plungers 16, 17 is operated through connecting rods 14, Fig. 3, by cam grooves or cranks on the shaft 12. The rear wall 41 of the feed box is movable relative to the rest of the box and is normally kept in its rear position by springs 45 on two rods 42 projecting from the rear of the wall 41, passing through a guide 44 and a depending flange 48 and having abutment collars 43 for the springs 45. When the box is over the first mould cavity the rear wall 41 is projected inwardly by double arm levers 46, 47 pivoted on the box 28 and engaging the rods 42 at their inner ends and at their outer ends having adjustable rods 48 with rollers 49 which are engaged by the connecting rods 14 and straps 50 secured thereto as the connecting rods 14 are swung sideways by their actuating cam grooves or cranks. The rear wall 41 of the feed box is inclined downwardly and rearwardly to urge the material in the box downwards. If the bricks are made with their length direction in the direction of travel of the feed box the rear wall 41 carries a second face 141, Fig. 5, located about the middle of the box, on side arms 142. The front face 29 of the feed box acts to move a pressed brick to the repressing mould in the forward movement of the box and the former repressed brick onto the discharge table 21. The known expedients for facilitating the feeding of the material to the mould of shaking the box 28 when over the mould by means of the operating cam &c., causing the box to be stationary for a short period when over the mould, may be used in conjunction with the invention. The stroke of the rear ejector wall 41 is adjustable by means of the rods 48 and the ejector may operate at any desired time by appropriate setting of the cam 35 relative to the cranks or cams operating the connecting rods 14. Specification 6905/15, [Class 87 (ii)], is referred to.
Patent GB-459705-A (GB)
Title: Improvements in frying pans
IPC: A47J37/10
Filed: 1936-09-09
Abstract: 459,705. Frying pans. JENTNINTGS, T., 648, Hagley Road, Quinton, Birmingham. Sept. 9, 1936, No. 24567. [Class 66] To prevent burning of the food, the bottom of a frying pan is stamped or pressed to provide over the whole area a large number of shallow upstanding bosses or nodules 2 of conical, domed, or nipple-like form with sloping or curved surfaces terminating in rounded or convex tops 4. The bosses, being open at the underside, afford an increased heating-surface for the pan. Specification 15091/14, [Class 66], is referred to.
Patent GB-1403945-A (GB)
Title: Apparatus for effecting control of a fluid operated device
IPC: E21B34/06
Filed: 1973-05-23
Abstract: 1403945 Switching systems for solenoids VETCO OFFSHORE INDUSTRIES Inc 23 May 1973 [28 Sept 1972] 24568/73 Heading H2H [Also in Division F2] A solenoid-actuated valve is actuated by a high electric potential provided through the closure of a switch 93 in a switching circuit 71, which switch opens after actuation and disconnects the high electric potential and replaces it by a a lower electric potential sufficient to hold the valve open. The valve is closed by the opening of a switch 97 which closes after actuation to leave the switching circuit in its initial position. The switches and relays 79, 87 are normally biased to the position shown in Fig. 4 to leave the valve unactuated. Closure of switch 95 actuates both relays to reverse the position of contacts 83, 85, 91, 93 to the position shown in Fig. 5 where the high potential (90V) is supplied to the solenoid. Subsequent opening of switch 95 deactuates relay 87, but relay 79 remains actuated and supplies the lower potential (24V) to the valves. Opening of switch 97 deactuates the relay 79.
Patent GB-991574-A (GB)
Title: Diuretic anils
IPC: C07D285/32
Filed: 1962-06-27
Abstract: The invention comprises compounds of the formula <FORM:0991574/C2/1> wherein X is a halogen atom, e.g. Cl or Br, or a nitro or halo-lower alkyl group, e.g. ClCH2 or CF3; R, R1 and R2 are each hydrogen, lower alkyl, lower alkenyl, lower alkynyl, phenyl-lower alkyl or halo-lower alkyl; R3 is lower alkyl, lower alkenyl, lower alkynyl, phenyl-lower-alkyl or halo-lower alkyl, e.g. CF3CH2, and R4 and R5 are each hydrogen, lower alkyl, phenyl or phenyl-lower alkyl or are joined together to form an alkylene group of 3-5 carbon atoms (the word "lower" in the above definitions indicating a group of 1-8 carbon atoms).  The compounds are prepared by reacting the appropriate 5-substituted-2,4 - disulphamoyl - aniline with a compound of the formula OHC.CH(R4).CHO or an acetal thereof derived from a lower alcohol.  2,4 - Bis - (substituted sulphamyl) - 5 - X - anilines are made by reacting the bis-sulphonyl chloride with an amine R2R3NH.  Di - sulphamyl - 5 - X - anilines wherein R, R1, and R2 are hydrogen are made either by alkylating, alkenylating alkynylating or aralkylating a 3 - keto - 7 - sulphamyl - 2H - 1,2,4-benzothiadiazine - 1,1 - dioxide to introduce the group R3 in the 2-position and treating the resulting benzothiadiazine compound with a base to open the ring; or when the 5-substituent is a nitro group, by treating 5-nitro-aniline-2,4-disulphonyl chloride first with ammonia to give the 4-sulphonamide and then an amine R3NH2. Pharmaceutical preparations having diuretic, natriuretic and antihypertensive activity comprise the above compounds of the invention and a carrier, preferably in unit dosage form such as capsules or tablets.
Patent GB-1107554-A (GB)
Title: Improvements in or relating to transmissions for motor vehicles
IPC: B60K17/34
Filed: 1965-06-10
Abstract: 1,107,554. Change-speed gearing. REGIE NATIONALE DES USINES RENAULT. 10 June, 1965 [11 June, 1964; 5 Jan., 1965], No. 24677/65. Heading F2D. A vehicle transmission comprises main and auxiliary-reduction gears with first and second output axle drive shafts, provision being made for normal drive through the main gear to the first shaft and for drive to both shafts with or without speed reduction through the auxiliary gear. As shown the main gear has an input shaft 8 within a hollow shaft 1 carrying constant mesh pinions driving the first axle drive shaft 2, the second drive shaft 21 being connected by pinions 17, 18, 20 to the shaft 2. The auxiliary reduction gear comprises pinions 11, 12 on the shafts 1, 8 meshing a compound pinion 13, 14 and operated by a dog clutch member 9 on the shaft 1. As shown the arrangement is conditioned for normal drive between shafts 1, 2 and by engaging a second clutch 16 the pinion 17 may be locked to shaft 2 so that both shafts 2, 21 are driven without speed reduction. The reduction train is brought into action by moving clutch 9 to the left to engage pinion 12 with input shaft 8. In modifications the auxiliary gear train is of the epicyclic type and clutch 16 is mounted on shaft 21, Figs. 3, 4 (not shown), and axially movable pinions are substituted for certain of the clutches, Figs. 6-11 (not shown).
Patent GB-355937-A (GB)
IPC: C08K5/00
Filed: 1930-08-18
Abstract: The moistening power of tars for road-making, coating &c., is increased by adding to the usual prepared and distilled tars, with or without natural or artificial bitumen, materials which contain oxycompounds of the aromatic series and hydrocarbons as well as nitrogen bases such as aromatic amines and also azocyclic compounds such as pyridine.  Examples of such materials are oily products obtained by the destructive distillation of recent or fossilized animal substances, e.g. Dippel's oil, bone oil, crude shale oil and shale tar.  Suitable proportions of the added materials are from 3-20 per cent by volume.  A small quantity of rubber latex may be added. Road making material may be made by mixing broken stone or ballast with the treated tar in usual mixing apparatus.  In an example 1000 kgs. of prepared and distilled road tar are mixed at 50 DEG  C. with 150-200 kgs. of material obtained in the destructive distillation of animal substances and 1 kg. of latex.ALSO:The moistening power of tars for road-making, coating, &c. is increased by adding to the usual prepared and distilled tars, with or without natural or artificial bitumen, material which contain oxycompounds of the aromatic series and hydrocarbons as well as nitrogen bases such as aromatic amines and also azocyclic compounds such as pyridine. Examples of such materials are oily products obtained by the destructive distillation of recent or fossilized animal substances, e.g. Dippel's oil, bone oil, crude shale oil and shale tar.  Suitable proportions of the added materials are from 3 to 20 per cent by volume.  A small quantity of rubber latex may be added.  Road-making material may be made by mixing broken stone or ballast with the treated tar in usual mixing apparatus.  In an example 1000 kgs. of prepared and distilled road tar are mixed at 50 DEG  C. with 150-200 kgs. of material obtained in the destructive distillation of animal substances and 1 kg. of latex.
Patent GB-1154627-A (GB)
Title: Improvements relating to Mixing Devices.
Inventor: IVERSEN KRESTEN
IPC: A23N17/00
Filed: 1967-05-26
Abstract: 1,154,627. Mixing apparatus. K. IVERSEN. 26 May, 1967 [26 May, 1966], No. 24761/67. Heading B1C [Also in Division B8] Mixing apparatus comprises two hoppers 5 e.g. containing fodder discharging onto a compartmented measuring wheel 3 and onto the surface of a further wheel in the form of a roller. The wheels are fixed together so that the hoppers discharge in proportionate quantities below a certain speed as they are rotated by the weight of the material and the mixing ratio can be varied by a slide in the discharge opening of one of the hoppers. The wheels discharge into a further hopper 12, e.g. feeding a grinding mill. As the hopper 12 fills up, it reduces the speed of the wheels, and the level of material in the hopper 12 is thereby automatically stabilised.
Patent GB-883840-A (GB)
Title: Improvements relating to filters
Inventor: BIRD ABRAHAM
IPC: B01D33/00
Filed: 1959-07-20
Abstract: 883,840. Filters. AUTOMATIC COAL CLEANING CO. Ltd. June 14, 1960 [July 20, 1959], No. 24805/59. Class 46. In a suction filter apparatus including a disc 4, or discs, suction is maintained through a hollow shaft 2 and pipe 10 for the whole rotation of the filter disc, and knives or scrapers 11 set close to the faces of the disc or discs, on the side of the apparatus at which the filter member enters the slurry in a bath 1, Fig. 2 (not shown), are used to remove an outer layer of the filter cake. The knives 11 are provided above the level of the slurry in the bath and the slurry is also pumped on to the faces of the discs through perforated pipes 13 situated above the slurry and below the knives. (The Figure is a plan.)
Patent GB-1310806-A (GB)
Title: Transistors
IPC: H01L23/485
Filed: 1971-04-19
Abstract: 1310806 Semi-conductor devices SIEMENS AG 19 April 1971 [19 March 1970] 24818/71 Heading H1K In the manufacture of a transistor including a diffused emitter region 3, the emitter electrode 11 is only applied to the region 3 after the base electrode 7 has been applied and alloyed or sintered to the surface of the base region 2. The emitter electrode 11 is itself not alloyed to the emitter region 3. The surface of the emitter region 3 is preferably protected during alloying of the base electrode by the thin oxide coating resulting from the emitter diffusion, the emitter electrode 11 eventually being applied in the reopened emitter diffusion window 9. Both emitter and base electrodes may be connected to conductive paths or screening layers 8, 12. Suitable materials for the base electrode 7 are Al and/or Pt while the emitter electrode 11 may be made of Ti, Zr, Cr, Ni, Mo, Ti/Al mixture or double layers of Ti/Al, Ti/Au or Ti/Ag.
Patent GB-240876-A (GB)
Title: Improvements in garage doors
IPC: E05D15/16
Filed: 1925-10-06
Abstract: 240,876. Johnson, C. G. Oct. 6, 1924, [Convention date]. Sliding doors. - A verticallysliding door, particularly for garages, comprises leaves hinged by means of rearwardly extending brackets 11 - - 13, the pintles of the hinges as well as pins carried by end brackets 10, 14 being- provided with guide-rollers 23 running in tracks 24 which guide the door into an open position over the doorway. The brackets 10 - - 14 progressively decrease in length and the tracks are correspondingly inclined so that the door closes with a wedging action against the frame. The door may be counterbalanced by spring-controlled ropes 28. The leaves of the door are rabbeted at their meeting edges. The tracks consist of channel-members having inwardly inclined edges engaging the guide-rollers.