baber/WOPTO huggingface dataset:
Patent GB-1329790-A (GB)
Title: Laminated or composite transparent sheet
IPC: B32B17/10
Filed: 1971-07-19
Abstract: 1329790 Laminated heatable transparent sheet SAINT-GOBAIN 19 July 1971 [20 July 1970] 33781/71 Heading B5N [Also in Division H5] A laminate or composite transparent sheet comprises a central glass sheet 1, a thinner glass sheet 2, 3 secured to each face of the central sheet by means of a layer 4, 5 of plastics, substantially parallel arranged electrical resistance elements 6, 7 in each layer of plastics, the elements in one plastics layer extending transversely of the elements on the other layer, and the thickness of each of the thinner glass sheets being such that as optical distortion is observed when the amount of heat generated on each plastics layer remains below 15 watts per square decimetre when the elements are supplied with constant, uniform electric current. Each plastics layer may be formed of a polyamide, cellulose acetate, cellulose acetobutyrate or polyvinyl butyral. The central glass sheet typically has a thickness of about 12 mms. and the thinner glass sheets have a thickness of 1 to 6 mm. The resistance elements 6, 7 may generally parallel sinusoidal resistance wires.
Patent GB-921440-A (GB)
Title: Improvements in or relating to photographic glazing machines
Inventor: CLARKE NORMAN DONALD
IPC: G03D15/02
Filed: 1960-10-03
Abstract: 921,440. Glazing machines. KODAK Ltd. Jan. 3, 1962 [Oct. 3, 1960], No. 33874/60. Class 98 (2). A glazing machine comprises a rotating heated glazing drum 2 having a polished surface, and an endless cloth band 8 guided over rollers 3-7 which is driven so as to carry prints round in contact with the drum. A squeegee blade 9 is mounted on the supporting frame 1 so that is edge is adjacent the nip of the cloth and the drum where the prints enter the machine. The edge is spaced about # inch from the drum, and just in contact with or just clear of the cloth. The purpose is to prevent the trailing edge of the print from curling upwards and so cause uneven drying.
Patent GB-930419-A (GB)
Title: Method of making composite metal plates
IPC: B23K20/227
Filed: 1959-10-06
Abstract: 930,419. Making composite plate; Jointing by rolling. YAWATA IRON & STEEL CO. Ltd. Oct. 6, 1959 [Oct. 29, 1958; Aug. 8, 1959], No. 33899/59. Classes 83 (2) and 83 (4). In a method of cladding a base metal, e.g. mild steel manganese steel or molybdenum steel with another metal, e.g. Cr-stainless steel, Ni-Cr-stainless steel semi-killed high carbon steel or a non-ferrous metal, the joining surfaces of the metal compcn ents are electroplated with iron, nickel, cobalt copper titanium or an ironnickel alloy and 5-45 g. per sq. m. of exposed surface area of an oxygen and nitrogen consuming agent selected from aluminium, calcium, manganese magnesium, silicon, titanium, vanadium iron or an alloy of one of the latter metals such as ferromanganese is included in the sealed assembly in powder or granular form so that on heating the assembly oxides and nitrides do not form at the interface of the components. A stainless-steel sheet 2 and a mild steel base metal 1 are cleaned and the faces to be joined are electroplated with iron prior to assembly with a mild steel cover sheet 8 and mild steel spacers 3. A separating agent is included between the cover sheet 8 and the sheet 2. The deoxidizing or denitriding agent is included in a gap 7 of the assembly and the latter is secured by welding while under pressure. The assembly is then heated and rolled and the cover sheet 8 finally removed. The deoxidizing and denitriding agent may also be added to the separating agent between the cladding metal and the cover sheet. Two assemblies may be rolled together using spacers which extend between the two base sheets, the separating material being included between the two cladding sheets. Detailed compositions of the deoxidizing and dinitriding agent are given in the case of aluminium and ferromanganese and it is stated that chips of magnesium may be used in a capsule of pure aluminium.
Patent GB-877429-A (GB)
Title: Improvements relating to washing machines
Inventor: BELL WILLIAM CHARLTON
IPC: D06F33/02
Filed: 1956-11-06
Abstract: 877,429. Washing-machines. HOOVER Ltd. Oct. 18, 1957 [Nov. 6, 1956], No. 33922/56. Class 138 (2). A washing-machine includes a basket 30 to contain the clothes, located within a container 25 for washing liquid and mounted to rotate about a horizontal or oblique axis, an impeller of disc-like form 31 mounted in one end of the basket to rotate coaxially with the basket and means for rotating both the basket and the impeller simultaneously and also relative to one another, for washing the clothes. The container 25 is supported by rubber belts 32 and wire ties 33 and the frame is provided with upper and lower buffers or cushions 34 and 35 and side buffers 36. To prevent excessive vibration when spin drying, weights 37 are attached near the mouth of the container. An annular rubber bellows 55 provides a watertight resilient seal for the connection between the container and the remainder of the machine. An electric motor 70 is bolted to gear-box 29 which it drives by means of a shaft 90 transverse to the basket axis coupled by a bevel drive 91 to a pair of coaxial driven bevels 92 and 93 so as to rotate them in opposite directions at slightly different speeds, a differential gear 96 coupling the driven bevels to a planet carrier 97 so as to drive the latter at a greatly reduced speed, and the impeller is coupled by means of clutch 115 to the impeller drive shaft 81. A coil spring clutch 104 couples the basket to the planet carrier 97 for low-speed drive, this clutch over-running freely when the basket is coupled by clutch coil 105 to bevel 93. The machine can be operated automatically under the control of a sequence timer 150 and level responsive switches 151 and 152 which are in pneumatic communication with the liquid in sump 50. Hot and cold water supplies are controlled by solenoid-operated valves and a pump 145 is used to remove spent liquid from the sump. Specifications 612,737, 624,191 and 877,430 are referred to.
Patent GB-887016-A (GB)
Title: Improvements relating to electrical storage arrangements
Inventor: LONG DOUGLAS PERCY
IPC: H04Q3/42
Filed: 1959-10-07
Abstract: 887,016. Automatic exchange systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 14, 1960 [Oct. 7, 1959], No. 34010/59. Class 40 (4). In a multi-digit register in which the digits are stored by respective uniselectors, incoming impulse trains are routed to the driving magnets of successive uniselectors by the storage uniselectors themselves, the arrangement being such that at the end of each impulse train a circuit is completed, over an arc of the uniselector which has stored the corresponding digit, to the driving magnet of the next uniselector so as to step the latter uniselector offnormal and thus divert the incoming impulsing circuit to its drive magnet by way of a second arc. The thousands, hundreds, tens and units switches are indicated respectively by S1 S2, S3 and S4 and the impulsing and stepping circuits are shown within the rectangle ISC. When contacts x 1 , x 2 , x 3 , x 4  operate, the digits stored by the uniselectors will appear as marked contacts on the digit marking arcs DC. Relay A pulls up on seizure and energizes relay B. The latter brings up relay C over a circuit including the wipers and home contacts of arcs SC of the switches S1 S2, S3, S4 and is itself held over the wipers and home contacts of arcs IC of the switches, although the current at this time is insufficient to operate magnet DM of switch S1. C also energizes slow-acting relay CA which short-circuits the impulsing contacts dm of the switches S2, S3, S4. Relay A responds to the impulses of the first dialled digit, magnet DM of S1 thus being energized each time contact a1 relapses, B remaining up and holding C over its left-hand winding and resistor RS2. At the end of the train, C falls back and magnet DM of switch S2 is temporarily energized over the arc SC of switch S1. When CA releases, DM releases to step S2 on one step so causing the re-energization of relays C and CA, and, since the wiper of arc IC of S2 is off-normal, B is maintained although magnet DM of S2 is not energized. The next three digits are stored on switches S2, S3, S4, respectively, in a similar manner after which relays C and CA fall back. The uniselectors are homed by the release of relay B (CA being released), switches S4, S3, S2, S1 then homing in that order.
Patent GB-363476-A (GB)
Title: Method of manufacturing white sugar directly from cane sugar juice
IPC: C13B20/02
Filed: 1930-11-12
Abstract: In the manufacture of decolourizing carbon, vegetable material is carbonized and mixed with lime, warm water is added to slake the lime and the mass is then added to a sugar solution and the lime is dissolved out.ALSO:White sugar is obtained directly from cane sugar juice by adding monocalcium saccharate to the juice and passing in an acidic gas such as carbon dioxide or sulphur dioxide to precipitate calcium carbonate or calcium sulphite.  The remaining liquor is treated with decolourizing carbon.  The monocalcium saccharate may be obtained by extracting carbonized vegetable matter containing calcium hydroxide with sugar juice in manufacturing vegetable decolourizing carbon.
Patent GB-447916-A (GB)
Title: An improved apparatus for use in producing kinematographic effects with opaque picture strips
IPC: G03B21/06
Filed: 1934-11-27
Abstract: 447,916. Kinematograph apparatus. .SMITH, V., Thatched Cottage, Knowle Hill, Virginia Water, Surrey. Nov. 27, 1934, No. 34078. [Class 97 (i)] Apparatus for viewing kinematograph images on opaque strips comprises two spaced side frames 3 mounted on a base 1 and bridged between their upper edges by a gate member 12, spools 4, 5 and gearing for driving an intermittent feed mechanism being provided between the frames. As shown, a sprocket 10 is rotated by a Maltese cross 6 turned by a pin on an arm 8b driven through gears 22c, 22b and the take-up spool 5 is driven by a spring belt from a pulley on the crank-shaft. The gate 12 is hinged to one side frame.
Patent GB-1003729-A (GB)
Title: Cigar making machines
IPC: A24C1/04
Filed: 1964-08-20
Abstract: 1,003,729. Cigar making machines. VELASQUES NEDERLAND N.V. Aug 20, 1964 [Aug. 21, 1963], No. 34168/64. Heading A2C. In a cigar making machine a cutting die 14 comprises two knives 15, 16 arranged to cut simultaneously two wrappers from a single tobacco leaf portion placed on the die. Each of the cutters 15, 16 is associated with a wrapping mechanism 11 and 13 respectively, the wrappers being transferred to the wrapping mechanism along the paths 20 and 23. Cigar bunches are fed to the wrapping mechanisms along the paths 10 and 12 from a bunch making section 1 of the machine.
Patent GB-657042-A (GB)
Title: Improved circuit for the production of direct voltages
IPC: H04N3/18
Filed: 1946-11-20
Abstract: 657,042. Rectifying; automatic control systems. PHILIPS LAMPS, Ltd. Nov. 20, 1946, No. 34407. Convention date, Nov. 20, 1945. Addition to 640,640. [Class 38 (ii)] In a D.C. voltage generator of the type described in the parent Specification in which a current flows through an inductor and is periodically interrupted to produce a voltage pulse, the current being interrupted for a greater time than it flows, the amplitude or frequency of interruption is made dependent on the output voltage or current in the circuit for rectifying the generated pulse. It is shown mathematically that the internal resistance of a generator as described in the parent Specification may be reduced by arranging that the rate of change of the square of the peak valve current with respect to the square of the D.C. output voltage is negative and by increasing the frequency of the interruptions. Valve B, Fig. 5, fed from a sawtooth generator G is cut off once per cycle to generate a high-voltage pulse across inductor L, the pulse being rectified by diode D1 to charge capacitor Ch. A small coupling coil W also feeds a diode D2 to develop across storage capacitor Cr a control potential proportional to the peak voltage across inductor L. This control potential supplies the grid bias for valve B, thus varying the peak anode current. By using a cascade rectifier arrangement, Fig. 7 (not shown), the first negative peak of the oscillation is also utilized. Since the forward resistance of diode D1 may not be negligible, the amplitude of the second positive peak may be employed for the derivation of the control potential. The cathode of diode D2 (Fig. 9, not shown) is returned to the join of a capacitor and resistor connected across the output load, the diode being biassed off while rectifier D1 is conducting. In a modification, Fig. 11, two auxiliary windings W feed a double-diode, the rectified potential being integrated over R1, C1 to give a control potential proportional to the area of the damped oscillations. In a modification, Fig. 12, the sawtooth generator comprises a capacitor C, resistor R and thyratron T, the control potential varying the thyratron bias to change the sawtooth amplitude. Alternatively, the load current is used to charge the capacitor, the grid of thyratron T being held at a constant potential so that variations in the load current cause the sawtooth frequency to vary. If large variations of frequency are necessary, a resonant circuit may be included in the output so that the output voltage or current is more dependent on frequency.
Patent GB-1436235-A (GB)
Title: Fm signal demodulation apparatus
IPC: H03K9/06
Filed: 1973-07-19
Abstract: 1436235 Interference suppression; muting MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 19 July 1973 [9 July 1972 28 July 1972] 34561/73 Headings H4L and H3Q The output of a frequency-demodulator is blocked by a gate 15 in the presence of impulsive noise, or the absence of signal (muting). The f.m. signal at 10 is amplified and limited at 11 to give a rectangular waveform (A, Fig. 2, not shown). This is differentiated and full-wave rectified at 12 to double its frequency (C), and used to reset a sawtooth generator 13 whose output (D) thus varies in amplitude in proportion to the separation of the pulses C and hence in proportion to the modulating frequency. A low pass filter 14 extracts the audio frequency modulation which passes through normally conducting gate 15 and a variable filter 20 to the output 18. Impulsive interference, or loss of signal, which causes the sawtooth output (D) to exceed a predetermined level (V1, is dedetected at 16 and causes a generator 17 to block the gate 15 (G). The gate pulse (G) may last longer than the duration (t 1 -t 2 ) of the interference to allow for transients (E, t 2 -t 3 ). If the gate 15 is blocked many times in quick succession (B, Fig. 4, not shown) the output tone at 18 may be distorted, and to correct for this, an integrator 21 integrates the gating pulses (D, Fig. 4) and switches filter 20 to a lower cut-off frequency (Fig. 5, not shown). A delay at the gate 15 input to compensate for delay in operation of the gate may be included.
Patent GB-1066460-A (GB)
Title: Improvements in or relating to polyolefinic compositions containing metal compounds
IPC: B01D39/14
Filed: 1964-08-24
Abstract: A shaped article of polyolefine composition having improved dyeability is obtained by adding to the polyolefine at least one organic metal salt obtained from (a) a metal selected from metals of Groups IA, IIB, IVA, VIA an the 4th period of Group VIII of the Periodic Table and (b) a compound containing a carboxyl radical, and from 0.05 to 5% of the olefine of at least one phosphoric ester compound represented by the formula <FORM:1066460/C3/1> where R1 and R2, which can be the same or different, are selected from saturated and unsaturated alkyl, aryl, alkylaryl, aralkyl and cycloalkyl radicals and A is an atom selected from hydrogen, aluminium, Group II metals and metals of the 4th period of Group VIII. The polyolefine composition is dyed with a dye which is water-insoluble and capable of forming a chelate compound with the metals of said organic metal salt.  The metal of the organic metal salt is preferably copper, silver, zinc, cadmium, iron, cobalt or nickel and the compound containing a carboxyl radical may be an organic carboxylic acid, preferably a monocarboxylic acid having not less than 8 carbon atoms, an oxy acid or an amino acid.  Complex metal salts may be used together with the organic metal salts.  The organic phosphoric ester may be an aliphatic, aryl, alkylaryl, aralkyl or cycloalkyl phosphate, preferably an alkyl phosphate, the alkyl radical having 4 to 12 carbon atoms.  The phosphoric ester compounds may be added either simultaneously with, or separately from, the organic metal salts, to the polyolefine.  Numerous examples are given in which the polyolefine composition is formed into filaments and then dyed.ALSO:An article comprising (1) a polyolefin (2) at least one organic metal salt obtained from (a) a metal of Group IB, IIB, IVA; VIA or the 4th period of Group VIII of the Periodic Table and (b) a compound containing a carboxyl radical and (3) from 0.05 to 5% of the olefin of at least one phosphoric ester compound of formula: <FORM:1066460/D1-D2/1> wherein R1 and R2 which may be the same or different, are each a saturated or unsaturated alkyl, alkaryl, aralkyl or cycloalkyl radical and A is an atom selected from hydrogen aluminium and metals of the 4th period of Group VIII or of Group IIB is dyed by the use of a water insoluble dye which has the ability to form a chelate compound with the organic metal salt (2), the article having been shaped while hot, before dyeing. Monoazo-dyes, having strong donor actions are listed as suitable-they are preferably applied from a liquid media consisting mainly of water and containing a surface active agent. The eighty-two examples include the dyeing of yarns from polypropylene containing zinc stearate and mono-and di-octyl phosphates of nickel, zinc or aluminium with the dye 2-(2\sv-oxy -5\sv chlorphenylazo)-5- diethyl aminophenol, with the dye.  <FORM:1066460/D1-D2/2>
Patent GB-773664-A (GB)
Title: Improvements in and relating to explosive blasting cartridges
Inventor: DAVIS CLYDE OLIVER
IPC: C06B31/42
Filed: 1955-12-03
Abstract: 773,664. Blasting cartridges. DU PONT DE NEMOURS & CO., E.I. Dec. 3, 1955, No. 34661/55. Class 9 (1). An explosive charge for a blasting cartridge of 1 to 2 in. diameter and density 1.3 to 1.5 grams per cubic centimetre comprises at least 60 per cent. of an ammonium nitrate/sodium nitrate mixture, from 10 to 30 per cent. of a dinitrotoluene/trinitrotoluene blend and 0.5 to 10 per cent. of a finely divided metallic fuel, all parts being by weight. The ammonium nitrate has a bulk density less than 0.95 grams per c.c. and, at least 40 per cent. passes a 100 mesh screen, there being from 30 to 85 per cent. by weight of ammonium nitrate in the mixture. The proportion of dinitrotoluene in the blend is from 1 to 50 per cent. but does not exceed 10 per cent. of the weight of the charge. The ingredients are mixed together and heated to at least 160‹F, cooled slowly with constant stirring to a temperature between 120‹ and 150‹F, then packed at this temperature into a cylindrical form of diameter 1 to 2 ins. The charge may be packed in a waterproof case such as paraffined paper or synthetic film and may be several feet in length. The metal fuel may be a ferrosilicon, aluminium, magnesium-aluminium alloy or magnesium silicide.
Patent GB-1076998-A (GB)
Title: Metal treatment
Inventor: WATKINS NORRIS RUPERT
IPC: C23F1/20
Filed: 1964-08-25
Abstract: 1,076,998. Etching. MINBRITE HOLDINGS Ltd. Sept. 24, 1965 [Aug. 25, 1964], No. 34689/64. Heading B6J. Aluminium is etched with a solution of ammonium bifluoride, to which is added, to the amount of 0À02-0À25% of the weight of the ammonium bifluoride, a cadmium, tin or lead salt, e.g. lead nitrate, cadmium nitrate or stannous chloride, and a small proportion of aqueous ammonia.
Patent GB-1144544-A (GB)
Title: Improvements in or relating to programme controllers
IPC: F16K31/524
Filed: 1967-07-28
Abstract: 1,144,544. Valves. HUTTENWERK OBERHAUSEN A.G. 28 July, 1967 [7 Sept.. 1966], No. 34710/67. Heading F2V. [Also in Division C5]  The cam-shaft 1 of a controller adapted to programme the valves 7 of a gasification unit, is journalled in a frame 9 which is movable about a pivot 11 to disengage the cams 2 from the followers 15 so that the valves may be operated manually through levers 6. The camshaft is driven by a motor 3 through a gear-box 4 and a dog clutch (Fig. 2. not shown) which is disengaged prior to the lifting of frame 9 by ram 11a. A wedge 12 (Fig. 1, not shown) is provided to lock frame 9 to stationary bed 10. The cam's profiles are adjustable (Fig. 5, not shown).
Patent GB-798668-A (GB)
Title: Improved method for recording data on or sensing data from a statistical or like record carrier
IPC: G06K19/04
Filed: 1956-11-13
Abstract: 798,668. Statistical apparatus. VERPLANKE, C. W. Nov. 13, 1956, No. 34736/56. Class 106 (1). Record cards.-Data is recorded on a record card in a series of similar fields each field representing a digit and denomination and being divided into a number of index positions, similar index positions on all fields relating to the same subject. Thus, in the form shown, the card is arranged to indicate the fares for journeys to forty-two different destinations and is used in conjunction with a printing machine for printing tickets. A multiple sensing device is used having a sensing element for each field and arranged so that all elements sense the same index position of each field. In the application described, the forty-two index places in the fields are allotted to the forty-two different destinations, the columns a-e represent decimal denominations and the rows 1-4 represent digits. Thus for the journey corresponding to the index position in the fifth row and fifth column in each field, the fare, indicated by the circles is represented by the decimal digits 12385 (for example 123.85 guilders). The sensing pins P, Fig. 2, are arranged for vertical movement while the card is arranged for horizontal movement, these movements being set by operation of a keyboard to select the index position required. Where there is a second variable, for example the class of travel, more than one card is necessary, the several cards being arranged in a stack, and the appropriate card being selected by displacement as shown in Fig. 2 and sensed by the pins P through vertical slots S, Fig. 1, alongside each field in the superimposed cards. In the form described, three cards are required to give the fares for first, second and third class travel, the appropriate card being selected by operation of a keyboard. The columns of index positions in the fields may be staggered to save space. In a modification shown in Fig. 4, the sensing pins may be arranged on swinging arms T, the columns of index positions then being arranged in parallel arcs. If desired, each field of index positions may be divided with two parts, one of each side of the slot S associated with the field. Specifications 496,996 and 638,935, [both in Group XVI], are referred to.
Patent GB-190917-A (GB)
Title: Improvements in hydraulic pressure-regulating apparatus for sugar-cane and other mills
IPC: C13B10/06
Filed: 1921-12-28
Abstract: 190.917. Stewart & Co., Ltd., D., Wishart, T., and Kilpatrick, W. Dec. 28, 1921. Accumulators and intensifiers. - Hydraulic pressure-regulating apparatus for sugar-cane and other mills comprises an intensifier supplied with liquid from a receiver K containing liquid under compressed-air pressure. The high-pressure cylinder D is mounted on the lowpressure cylinder by crossheads and rods F, and the stroke of the low-pressure ram H is limited by the crosshead of the cylinder D.