baber/WOPTO huggingface dataset:
Patent GB-1302830-A (GB)
IPC: B65D90/04
Filed: 1971-04-19
Abstract: 1302830 Containers; unloading containers by tipping SEAHAND SERVICES Inc 19 April 1971 [23 March 1970 26 Oct 1970] 25204/71 Headings B8E and B8P A flexible liner for a container for handling bulk cargo comprises a bag portion 14 of kraft paper or polyethylene having a bulkhead 16 at one or both ends made of heavy duty cardboard reinforced with blocks 30 of wood or cardboard. The liner is fixed to the inside of the container walls by spots 20 of a contact adhesive and has an opening 34 to accommodate a filling pipe, an opening 35 to take an air vent fitted with a filter and an emptying opening 46. These openings are covered until required with paper or polyethylene. The container may be emptied by vacuum means or by tilting the container. In a second embodiment, Fig. 7, the end bulkheads 72 have lip portions 74 that are a tight fit in between the container walls. To facilitate emptying the container by tilting, a platform 50 pivoted at 54 to supports 52 is placed under the container and jacks 56 raise the container about the pivots. A plate 60 supports the end of the container and has an opening 62 to accommodate an unloading shoot. An air blower connected to the container may facilitate the unloading.
Patent GB-190262-A (GB)
Title: Improvements in storage battery plates
IPC: H01M4/72
Filed: 1921-09-23
Abstract: 190,262. Chloride Electrical Storage Co., Ltd., (Ford, B.). Sept. 23, 1921. Electrodes.-A storage battery electrode consists of a grid comprising vertical and horizontal bars, the vertical bars having a diameter less than the width of the frame so that they are com pletely embedded in the active material. Some or all of the horizontal bars extend to the surface of the active material, the exposed edges of the bars being brought to a knife edge. Fig. 5 shows a cross section through a portion of an electrode in which a is the frame and d one of the vertical bars embedded in active material. Some of the horizontal bars e terminate in a knife edge at the surface of the active material, the remaining bars e<1> being embedded. Fig. 9 shows a modification in which the frame a is formed with an inwardly-extending web a<1>, which is covered with active material. The horizontal bars e extend across the web a' to the frame a.
Patent GB-926323-A (GB)
Title: Improvements in or relating to brake valves for vacuum brakes
IPC: B60T13/46
Filed: 1960-07-20
Abstract: 926,323. Vacuum brakes. KNORR-BREMSE G.m.b.H. July 20, 1960 [July 21, 1959], No. 25320/60. Class 103 (1). In automatic two-chamber vacuum rail brakes, a quick-action valve 7 for admitting atmosphere into a brake cylinder lower chamber 11 is controlled by a piston 15 acted upon in the valve-opening direction by pressure in train pipe 1 and in the valve-closing direction by pressure in a counteracting control chamber 17 connected to a pipe-line 33 between the valve 7 and the cylinder lower chamber 11 by a union 39 arranged on a section of the pipe-line 33 constructed as an ejector 35. As shown, the brakes are released, regulation vacuum obtaining in all chambers of the system. Increased pressure in the train pipe 1 passing by branch 3 into control chamber 5 lifts the piston 15 to open valve 29, 31 by abutment 27 so that atmosphere enters chamber 25 and hence by the pipe-line 33 into the cylinder lower chamber 11 to apply the brakes. The air flow through the ejector 35 draws air from the control chamber 17 to increase the force of the piston 15, but increased pressure in the cylinder lower chamber 11 decreases the flow so that air penetrates from the chamber 25 to the control chamber 17 causing the piston 15 to descend and closing the valve 29, 31. On admission of regulation vacuum into the train pipe 1, the brakes are released.
Patent GB-654643-A (GB)
Title: Improvements in or relating to window frames
IPC: E06B3/20
Filed: 1945-10-01
Abstract: 654,643. Window frames. FISCHL, F. Oct. 1, 1945, No. 25386. Convention date, Dec. 11, 1942. [Class 20(iii)] A window frame a, b, f, e, j comprises a metal' core 1, 2, 3, 4, 5, 6, 7 and a protective coating of synthetic resin or like organic plastic material, the coating having a high corrosive resistance, high mechanical strength, and high resistance to acids and alkalis and being waterproof, and giving the frame the desired colour and protection against the atmosphere. The coating may consist of a thermoplastic moulding composition made, for example, with a base of polystyrene, or acetyl cellulose, or products of superpolyamide-condensation or products of copolymerization. The frame may be given any desired cross section. The core may be of steel of C, L, I, or T section.
Patent GB-1510925-A (GB)
Title: Chromogenic enzyme substrates
IPC: C12Q1/37
Filed: 1976-06-18
Abstract: 1510925 Preparation of N<SP>α</SP>,N<SP>G</SP>-O protected arginine and N<SP>α</SP>,N<SP>#</SP>,O protected lysine KABI AB 18 June 1976 [11 July 1975] 25411/76 Heading C2C [Also in Divisions G1 and C3] N<SP>α</SP> - Benzyloxycarbonyl - N - nitro - L - arginine p-nitroanilide is prepared by the reaction of N<SP>α</SP>-benzyloxycarbonyl-N<SP>G</SP>-nitro-L-arginine and p-nitrophenylisocyanate. N<SP>α</SP> - t - Butyloxycarbonyl - N<SP>#</SP> - benzyloxycarbonyl L - lysine p - nitroanilide is prepared by the reaction of N<SP>α</SP>-t-butyloxycarbonyl-N<SP>#</SP>- benzyloxycarbonyl - L - lysine and p - nitrophenylisocyanate.
Patent GB-621758-A (GB)
Title: Improvements in or relating to automatically variable gain and attenuator networks
IPC: H03G7/02
Filed: 1946-08-26
Abstract: 621,758. Volume compression and expansion. SADIR-CARPENTIER. Aug. 26, 1946, Nos. 25516 and 25517. Convention dates, Aug. 24, 1945, and Aug. 28, 1945. [Class 40 (iv)] A variable attenuator for use in a volume expander or a level controller comprises a #- network whose series arm comprises the anodecathode impedance of a valve and whose parallel arms comprise respectively the anode and cathode impedances of the valve. The valve is operated at a point to the left of anode bend portion of its characteristic in order to obtain a linear relationship between its grid voltage and its characteristic impedance. In the volume expander, Fig. 1, the #-network comprises the pentode 1 and its anode and cathode resistances 4, 2. The incoming signal is amplified by the pentode 10 and rectified by the diode 11 whose output is applied over the condenser resistance circuit 12, 5 to the grid of the pentode 1 to vary the attenuation according to the incoming signal strength. The diode 14 which shunts the resistance 5 becomes conducting on a sudden increase in input level to decrease the time constant of the circuit 12, 5. In a circuit, Fig. 6, designed to produce a constant level output, input signals are fed to a balanced #-network whose series elements comprise the anode-cathode resistances of the triodes 31 and whose parallel elements comprise the transformers 32, 33, the output being amplified by two pentodes 35 and the output pentode 40. Part of the output of the second pentode 35 is rectified by diodes 38 and applied via diode 39 to bias back the valves 31. The output of the diodes 38 is also used to bias back the control grid of the output valve 40 and is also fed to its suppressor grid through the resistance capacity coupling 43, 44 in order to level out sudden changes in volume. To avoid excessive amplification of background noise in the absence of an input signal, a constant level supersonic frequency may be injected into the output circuit.
Patent GB-1305163-A (GB)
IPC: G04G5/02
Filed: 1971-04-19
Abstract: 1305163 Electronic watches CENTRE ELECTRONIQUE HORLOGER SA 19 April 1971 [3 April 1970] 25573/71 Heading G3T In an electronic timepiece (e.g. a watch) wherein a stepping motor drives hours, minutes and seconds hands 7, 8, 9, Fig.3, respectively in a conventional manner, and the motor is controlled by timing signals at 1Hz derived from a quartz crystal controlled oscillator 2 by a frequency divider 4, there is provided a time setting arrangement for synchronizing the seconds indication with a seconds pulse or pip of a reference time signal, whereby during a setting operation signals from the quartz oscillator to the frequency divider are interrupted. The arrangement is said to avoid any phase difference between a reference time signal and the time indicated by the seconds hand of the watch when the motor is restarted. When setting, a setting stem (not shown) must be pulled out to its operative position, in which the output of the frequency divider 4 is connected to an input of an AND gate 3, at the most one second before it is desired to stop the watch. Thus the stem is pulled out after the seconds hand has moved to the 59 secs position e.g, at instant G, Fig. 2, and the motor will carry out one more step, moving the seconds hand to the 60 second position before stopping and all of the stages of the divider are returned to the logic position "O". The quartz oscillator 2 operates continuously to produce output signals S and when the stem is pushed in to its inoperative position at instant H, moving switch 11 to + terminal 12 on the occurrence of the 60 sec. reference 'pip' at instant F, the AND gate is again conditioned to pass signals to the frequency divider. A delay of 1 second will occur, while the divider counts the timebase pulses S, before the motor receives its first impulse causing it to move the seconds hand to the 1 sec. position.
Patent GB-887493-A (GB)
Title: Method and apparatus for mixing particles to be separated into fractions, with a separating medium, and feeding the mixture to a separator
Inventor: LEEMAN JAN NICOLAAS JACOB
IPC: B03B5/44
Filed: 1958-08-08
Abstract: 887,493. Mixing solids and liquids. STAMICARBON N.V. Oct. 20, 1959 [Aug. 8, 1958], No. 25608/58. Class 86. A continuous discharge apparatus for mixing solid particles with a liquid separating medium of specific gravity greater than that of the lightest particles to be separated comprises a tank 151 with a lower tapering portion 152 and bottom outlet 153; an axially arranged tube 14 opens into the lower part of the tank. The solid particles are fed by a conduit 143 cuts the funnel-shaped upper part 141 of the tube 14, into which separating medium is also fed from conduit 142. Additional separating medium is supplied externally of tube 14 by conduit 155. The diameter of the tube 14 and the rate of supply of the separating medium from conduit 142 are selected so that the downward velocity of the mixture in tube 14 exceeds the rising velocity of the lightest particles. Similarly the size of the annular passage 156 and the rate of flow of separating medium from conduit 155 are selected so that the downward velocity in the passage 156 exceeds the rising velocity of the lightest particles. The size of the passage 156 is adjusted by altering the depth of intrusion of the tube 14 into the tank by means of adjusting screws as at 145. The apparatus is described in connection with a coal washing and separating system, see Fig. 1 (not shown). Specifications 791,520, 791,857, 791,858, 791,859, 887,491 and 887,492 are referred to.
Patent GB-620604-A (GB)
Title: Improvements in or relating to gramophone records
Filed: 1946-08-28
Abstract: The surface composition of a gramophone record comprises by weight 10 to 30 per cent amorphous carbon, 20 to 60 per cent thermoplastic material and 10 to 70 per cent filler of non-fibrous natural mineral material such as slate, rottenstone, barytes or dewaxed garnet.  The particle size of the filler is preferably less than 10 microns.  The thermoplastic material may contain shellac or natural or artificial resins.  Carnaubo wax, Congo gum, polyvinyl acetal resin and pinewood resin are mentioned.  The amorphous carbon may be carbon black, lamp black, vegetable black or acetylene black.  The material is preferably used in the laminated record described in Specification 620,306, [Group XXXVIII].
Patent GB-243874-A (GB)
Title: Improvements in or relating to pneumatic cushions, beds, upholstery and the like
IPC: A47C27/08
Filed: 1924-10-29
Abstract: 243,874. Moseley & Sons, Ltd., D., and Moseley, R. Oct. 29, 1924. Spring surfaces, pneumatic. An air tube or tubes folded to form a number of adjacent parallel sections, has on one or more of the sides or ends an air tube or tubes 4, 5 preferably of larger diameter than the folded tube 3 to give a raised edge or to produce a concave upper surface. The tubes are secured together by tabs 6 or by vulcanizing, and are enclosed in a casing 7 which may have its ends shaped to conform with the cross-section of the structure.
Patent GB-827064-A (GB)
Title: Embossing machines
IPC: B41L47/02
Filed: 1957-08-15
Abstract: 827,064. Embossing machines ADDRESSOGRAPH - MULTIGRAPH CORPORATION. Aug. 15, 1957 [Aug. 28, 1956], No. 25777/57. Classes 100(2) and 100(4) Embossing printing plates of dielectric material. In an embossing machine, the raised characters of the printing plates produced are faced by a coloured strip so that they may be easily read. The printing plates, after being faced, drop down a shoot 310, Fig. 10, which has metallic projections which engage the dielectric plates and so discharge static electricity stored in them. Colour strip feeding and guiding.. A colouring strip 105 is drawn across a reciprocating platen 100 from a spool 170, Fig. 2, mounted directly upon the platen 100, Fig. 7, by a spindle 177 and having an adjustable spool tensioning arrangement 183, 185. The strip is drawn from the spool 170, Fig. 2, by feed rollers 172, 173 driven by universally coupled shafting 193, 290, a ratchet drive 261, a pinion 260, and a rack 265 reciprocated by a cam mechanism driven through an electrically controlled one revolution power driven clutch. Electrostatic charges in the strip are dispersed by means of foil 210 attached to the feed rollers 172, 173. The path of the strip 105 from the spool 170 is around spring mounted guides 153, 154 which hold the strip clear of the heated platen until impression takes place. Impression arrangements. The heated platen is reciprocated by a cam mechanism 140, Fig. 2, and followers 136 oscillate arms 134, Fig. 7 to lower the platen. When the strip guides meet the printing plate the platen continues its downward path, to heat and impress the strip 105 on to the raised characters, Fig. 6A. Platen alignment. The heated platen is levelled to effect even impression by screws 121. Plate feeding arrangements. Plates are fed from the embossing position by three pawls reciprocated by an arm 75, Fig. 7. On the first stroke a pawl 51 pulls a plate to a position intermediate of the embossing position and the facing position: on the second stroke a pawl 52 pushes this plate to the facing position, while the first pawl 51 pulls a second plate into the intermediate position, and on the third stroke a pawl 53 (see also Fig. 4) pushes the first plate from the facing station into the shoot 310. Specifications 666,208 and 688,532 are referred to.
Patent GB-466937-A (GB)
Title: Electric circuit breaker controlled by a combination lock device, suitable in particular for use as an anti-theft device for automobile vehicles
IPC: H01H27/10
Filed: 1936-09-23
Abstract: 466,937. Locking switches. TRIPONNEY, G. J. E. Sept. 23, 1936, No. 25874. [Class 38 (v)] A combination lock switch comprises a rotatable disc 38 carrying contacts (not shown) for engagement with fixed contacts (not shown) on a disc 41. The disc 38 is rotated into the " on " position by depressing a " contact " plunger 10 carrying a cam projection 44 which engages an aperture on the disc 38. A " stop " plunger 9 has a similar projection which on depression causes the disc 38 to rotate to the " off " position. The projection 44 of the " contact " plunger 10 also engages an aperture in a toothed rotary locking disc 34 which can only turn and allow the plunger 10 to be depressed if gaps 13 in locking slides 12 on a circle of plungers 6 are in line with the disc. Each of the slides 12, which are prevented from rotation by engagement with the casing is connected with the plunger 6 by a pin 57 engaging a helical track on the slide. Before a combination is set, all the notches 13 are in line with the disc 34 and the switch can be operated. To set a combination selected plungers are rotated to bring the notches out of alignment. Then before the disc 34 is freed, the selected plungers must be depressed where they are held by the engagement of collars 23 with spring pawls 24 on a rotary crown 7. Depression of the " contact " plunger 10 then operates the switch, and a second projection 43 on the plunger engages an aperture in the crown 7 to rotate it causing the pawls to free the depressed plungers. To prevent anyone turning the plungers and so altering the combination, a rotary locking disc 14 is provided next to the cover plate 1 and can be moved by a button 4 so that its teeth 17 engage flats 15 on the plungers 6 and prevent rotation. The disc 14 can only be rotated to the unlocking position when the " contact " button is depressed to allow the narrow part of an aperture 16 in the disc to pass a restricted portion of the stem of the " contact " plunger 10.
Patent GB-587559-A (GB)
Title: Manufacture of pyrimidine compounds
IPC: C07D239/47
Filed: 1945-02-27
Abstract: Pyrimidine derivatives of the general formula <FORM:0587559/IV/1> wherein X and Y represent hydrogen or hydrocarbon radicals (but not both hydrogen), Z represents an alkylmercapto group and Am represents an arylamino group which may be unsubstituted or may bear one or more nonacidic substituents, e.g. halogen atoms, nitro, cyano or esterified carboxyl groups or hydrocarbon radicals (which themselves may bear substituents and which may be attached to the arylamino group directly or through an oxygen, nitrogen or sulphur atom or a sulphonyl or carbonyl group), are manufactured by the interaction of a 2-alkylmercapto-4-chloro- or -bromo-pyrimidine, bearing the atoms or groups X and Y in the 6- and 5-positions, with an arylamine, e.g. by heating the reagents together, preferably in the presence of a solvent or diluent (e.g. glacial acetic acid or aqueous acetone) and of an acid catalyst (e.g. hydrochloric acid).  The corresponding 2-hydroxy compounds are obtained by heating the products with a mineral acid optionally in the present of a solvent.  Examples describe the interaction of 2 - methylmercapto - 4 - chloro - 6 - methylpyrimidine with p-chloraniline, p-toluidine, p-anisidine and 6-bromo-2-naphthylamine, and of 4 - chloro - 2 - ethylthio - 5 : 6 - dimethyl - pyrimidine with p-chloraniline, and the conversion of certain of the products to the 2-hydroxy compounds by heating with aqueous hydrobromic acid or with concentrated hydrochloric acid and b - ethoxyethanol.  Specification 587,550 is referred to.
Patent GB-1284015-A (GB)
Title: Improvements in or relating to transistors
IPC: H01L21/331
Filed: 1970-05-29
Abstract: 1284015 Semi-conductor devices SIEMENS AG 29 May 1970 [30 May 1969] 25889/70 Heading HiK A transistor in which the emitter-to-collector current through the base region flows along both lateral and vertical paths comprises two laterally spaced P-type regions in an N-type base region, one of the two P-type regions constituting part of the collector region and being in direct electrical contact with the surrounding P-type substrate S which constitutes the remainder of the collector region, while the other P-type region constitutes the emitter region. The transistor may be isolated from a semi-conductor body S<SP>1</SP> containing other transistors by a layer I s  of SiO s . In a modification the lateral region constituting part of the collector region contacts a P-type isolation wall (Tr), Fig. 3 (not shown), which in turn contacts the P-type substrate S.
Patent GB-150914-A (GB)
Title: Improvements in artificial teeth with plastic dentures
IPC: A61C13/10
Filed: 1919-10-23
Abstract: 150,914. Ash, P. C. M. Oct. 23, 1919. Teeth, artificial. - A porcelain tooth A for plastic dentures is formed with a circular screw-threaded recess B into which a cylindrical metal tube C formed with anchoring projections D is screwed before the too t h composition is fired or is afterwards inserted and secured by a low fusing composition.
Patent GB-1500540-A (GB)
Title: Pots or cans containing paint
IPC: B44D3/12
Filed: 1975-06-19
Abstract: 1500540 Lid with pouring spout FONDERIE ET ATELIERS DES SABLONS 19 June 1975 [24 July 1974] 26113/75 Heading B8T A pot or can for paint, is provided with a lid 1 having a pouring spout 2 closed by a spring loaded slide 3, the slide 3 being of metal with a covering of polytetrafluoroethylene. The slide is withdrawn against the action of return spring 5, to open the spout, by means of lever 4. The polytetrafluoroethylene covering reduces sticking of the slide. A stirrer is preferably attached to the lid.
Patent GB-601501-A (GB)
Title: Hydraulic jack
IPC: B66F3/42
Filed: 1945-10-08
Abstract: 601,501. Reciprocating pumps. PAGE, H. E. Oct. 8, 1945, No. 26216. Convention date, Oct. 27, 1944. [Class 102 (i)] [Also in Group XXX] A body 5 providing a reservoir R has spring- loaded pistons 15, 16, and a cylinder 12 enclosing a cylinder 10, the space between the cylinders forming a reservoir connected to the reservoir R. The cylinder 10 houses a piston 25 which is work-engaging at its upper end. A shaft 50 carrying single-lobed and double lobed cams 53 and 54 respectively, is actuated through a socket member 60 by a lever which may be inserted in sockets 61, 62 or 63 (Fig. 5). On each suction stroke of the pistons 15, 16 caused by the pressure of their springs, liquid is drawn from the reservoir past a valve 33 and through ports 39, 40 into chambers 19 and 20, and on each pressure stroke the liquid is forced past a valve 35 and through passageway 38 into the chamber under the piston 25 to raise it. A needle valve 43 co-operating with the passageway 38 is manually operated for releasing the pressure liquid to lower the piston. One or more of the three lobes of the cams may be brought into action depending on the position of the socket member, the socket used, and the angular movement of the actuating lever.
Patent GB-1348855-A (GB)
Title: Moulded thermoplastics articles
IPC: C08L33/18
Filed: 1972-06-06
Abstract: 1348855 Volume stabilization of moulded articles CONTINENTAL CAN CO Inc 6 June 1972 [12 Aug 1971] 26338/72 Heading B5A Articles moulded from an amorphous thermoplastic resin having a nitrile content of at least 60% and an initial glass transition temperature T a  are volume-stabilized by humidifying to a moisture content of at least 1% by wt. to decrease the glass transition temperature to T b , heating to a temperature below Tb and then cooling to room temperature. The article may be a bottle formed by extrusion-blow moulding. The resin may be a copolymer of an α,#-olefinically unsaturated mononitrile, e.g. acrylonitrile, with at least one other olefinioally unsaturated monomer, e.g. methylacrylate, or may be a graft copolymer of the above polymer with an acrylonitrile-butadiene rubber.