baber/WOPTO huggingface dataset:
Patent GB-1280092-A (GB)
Title: Improvements in or relating to the manufacture of annealed silicon steel
Inventor: STEGER JOHN F
IPC: C21D1/78
Filed: 1970-08-04
Abstract: 1280092 Coated metal MORTON INTERNATIONAL Inc 4 Aug 1970 [18 Aug 1969] 37575/70 Heading B2E [Also in Divisions C4 and C7] A coating composition consists of a magnesium oxide having a surface area of 5-50m<SP>2</SP>/g (B.E.T.) and from 3.5 to 20 wt% of an alkaline earth metal fluoride. The alkaline earth metal may be Mg, Ca, Sr or Ba. A continuous sheet of silicon steel may be coated with the composition in the form of a slurry which is then dried; the steel is then formed into coils and annealed. The slurry preferably has a solids content of 5 to 20% by wt, and may be applied by immersion, brushing or spraying. The coating may be dried in air before annealing. The annealing may take place in a hydrogen atmosphere.
Patent GB-1481093-A (GB)
Title: Electrically operated nut fastening tool
IPC: B25B23/147
Filed: 1974-08-29
Abstract: 1481093 Control of D.C. motors SHIBAURA ENG WORKS CO Ltd 29 Aug 1974 [31 Aug 1973 28 Nov 1973] 37756/74 Heading H2J [Also in Division B3] A D.C. series motor 16, 17 drives the nut setting adaptor of a nut fastening tool, Fig. 1 (not shown) by means of the control circuit shown which, upon closure of a manually-operated switch 26, causes the motor to run in one direction at an increasing speed until the nut has been screwed on to a bolt, the resultant increase in torque causing the adaptor to crimp the nut and screw it up further until the motor current reaches a predetermined value, whereupon the motor is automatically stopped and then restarted in the reverse direction to cause the adaptor to release the nut, after which the switch 26 is opened. When the switch 26 is closed, an A.C. supply at terminals 18, 19 is rectified by members 27, 28, 29 to produce a D.C. control voltage across lines 31, 33 and so start the operation of an oscillator circuit 35, whose transformer 37 fires a thyristor 20 to half-wave energize the motor with rectified A.C. through diode 23 and current sensing resistor 25. An RC circuit 45, 46 controls the resistance of a transistor 38 so that, as the capacitor 45 charges following closure of switch 26, the transistor resistance progressively decreases to cause the oscillator to advance the firing point of thyristor 20 and so progressively increase the voltage applied to the motor. When the motor current reaches a predetermined value, set by adjustment of a potentiometer 52 and representative of a desired nut tightening force, members 50, 51, 54 produce a signal to fire a thyristor 53<SP>1</SP> which turns on a transistor 57 to turn off the oscillator and so de-energize the motor. Members 61, 62 provide a time delay during which the emitter potential of transistor 36 becomes equal to that of the line 33. After this delay a Zener diode 64 breaks down to switch on a transistor 63 and so start operation of an oscillating circuit 65, whose transformer 70 fires a thyristor 71 and hence, via the latter and a diode 72, a thyristor 21 which half-wave energizes the motor with rectified A.C. through diode 22, the field winding 17 being reversely excited to cause the motor to run in the opposite direction. As soon as the tool operator sees that the adaptor has released the nut, the switch 26 is opened to stop the motor.
Patent GB-1520767-A (GB)
Title: Dry cells
IPC: H01M6/08
Filed: 1975-09-15
Abstract: 1520767 Sealing primary batteries MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 15 Sept 1975 [20 Sept 1974 (2)] 37791/75 Heading H1B In a Zn-carbon-MnO 2  dry cell, the Zn can is closed at the top with a plastics seal 14a, having a recess 13a, which contains, e.g. pitch, rubber, wax, grease, petroleum jelly, paraffin or asphalt, and into which is embedded the flange 15a of a plastics tube 15. A metal top seal 17a fits over the electrode 12. The separator may be of two-ply paper coated with starch.
Patent GB-1319089-A (GB)
Title: Method of crushing preferably granular field produce corn cobs  and similar agricultural produce and centrifugal disintegrator  for carrying out this method
IPC: B02C18/14
Filed: 1970-08-05
Abstract: 1319089 Impact pulverizer's F-O BRECKNER 5 Aug 1970 [5 Aug 1969] 37893/70 Heading B2A A mill comprises a hopper, a guide chamber for material fed in, an air mixer, a preliminary chopper in the guide chamber, hammers and a grinding path with inlet and outlet, wherein the cross-section of the grinding path is adjustable. In a first embodiment the mill comprises a housing 1, Fig. 1, with a hinged cover 2, Fig. 2, and a rotor disc 6, supporting pivoted hammers 12 which are mounted on studs 10. The ends of the hammers have hard plates 12a having sharp or toothed impact edges. The hammers cooperate with an adjustable baffle wall-and-rib arrangement 21, 22. This may comprise segment-shaped carrier elements 22 hinged together and adjusted by a mechanism 24..26. Detachable baffle ribs may be formed as segments mounted on the segments 22 or be individually detachable. Alternatively the baffle wall may comprise a single arcuate carrying element with detachable and exchangeable ribs. A stripping device 36 between an inlet 19 to the grinding track and outlet 27 prevents ground produce passing from the outlet to the inlet. The housing cover 2 has a bulge 4 so that a gap is left between circumference of the disc and a conical shell part 4a, the gap connecting the grinding chamber with a guide chamber 7. Strip or bar shaped delivery fingers 13 are arranged on the disc 6 facing the guide chamber 7 and each has a surface 49, Fig. 3, with scoop-shaped X-section, and a detachable double-edged chopper 43. In operation, material supplied via an inlet 15 is chopped as it enters the guide chamber 7, passes through the gap between the disc 6 and wall 4a and is hurled by the hammers via the inlet 19 against the ribs 21 bounding the grinding path and leaves via the outlet 27. In a second embodiment, the baffle ribs are supported on a steel strip or spring or a plastics strip, whose arc may be varied by adjustors (24..26), Fig. 4 (not shown). The baffle wall may be set eccentrically to the circle of the rotor hammers causing an acceleration of air flow through the grinding track (11), thus reducing the dwell time of material and producing a coarser grind. Knife edges are provided on the hammers and baffle ribs, Fig. 7. A third embodiment provides adjustment of flow between the guide chamber and grinding path by having removable steel plates or partitions 5, Fig. 5, with recesses 17 of different sizes or by having a partially rotatable plate 5 to adjust the flow cross-section. The housing and guide chamber may have reinforcing liners and the guide chamber line may have ribs serrations or teeth.
Patent GB-878410-A (GB)
Title: Improvements in or relating to the manufacture of wound magnetic cores
IPC: H01F41/02
Filed: 1957-12-07
Abstract: 878,410. Inductors and transformers. STOPPS, A. L. May 28, 1958 [Dec. 7, 1957], No. 38109/57. Class 38 (2). A bent strip magnetic core 11 with staggered air gaps between the layer ends is made by winding three cores 10A, 10B, 10C separately on the same arbour, heat-treating, cutting them respectively at different places X, Y, Z and assembling the core 11 about conductive winding 20 from layers of increasing size such as 12X, 12Y, 12Z, selected in turn from the three cores. Any faults such as bump B or large radius C resulting from defects in the arbour are aligned, the layers nesting as they would in the original cores. In another embodiment (Figs. 4, 5, not shown) the arbour is constructed to give a trapezoidal winding, the joint in the layers being an overlap, with one side greater than the other by the width of the cut plus the amount of overlap.
Patent GB-1150206-A (GB)
Title: Improvements in Electrical Connecting Leads and Components Incorporating the Same.
IPC: H05K3/34
Filed: 1966-08-25
Abstract: 1,150,206. Forging. INTERNATIONAL BUSINESS MACHINES CORP. 25 Aug., 1966 [17 Sept., 1965], No. 38146/66. Heading B3H. [Also in Divisions H1 and H2] Portions of corner terminal pins (see Division H2) of a printed circuit module or other electrical component which are deformed to form lugs 26, 27 adapted to engage a circuit board or other support so as to maintain the component in spaced relationship with the support are so shaped to provide barriers 36 which prevent migration of liquid (used as a backseal for the component) along the pins. The pins which are of zirconium copper alloy coated with nickel, then tin, are cold swaged into shape by a pair of conventionally reciprocated dies (Fig. 13, not shown), each of which has a cross-shaped slot in the end, each corresponding to half the barrier 36 and a rib 31a, 31b.
Patent GB-919432-A (GB)
Title: Improvements in or relating to sealing means
IPC: B01J3/03
Filed: 1961-10-26
Abstract: 919,432. Making sealing rings. KREUGER, R. E. Oct. 26, 1961, No. 38294/61. Class 83 (2). [Also in Group XXVI] A steel or bronze sealing ring is formed by machining with a pair of resilient annular legs 12, 13 extending radially from a body 11, Fig. 1, and having diverging portions 20, 22 terminating in sealing tips 23, 24. The tips are then lapped, using flat carborundum stones or grit to produce flat surfaces 46A, Fig. 6, e.g. 0.003 to 0.010 inch wide, whose edges are rounded by polishing with fine sandpaper. The flats and their rounded edges are then coated electrically or chemically with a base layer 47 of copper, an intermediate layer 48 of silver or gold and an outer layer 49 of tin or lead. The layers may, as shown, extend on the polished surfaces of the ring adjoining the flats. In Fig. 7 the ring is of stainless steel or aluminium alloy and may be coated with tin-plate, silver-plate, gold-plate or polytetrafluoroethylene. In Fig. 11, an L-shaped annular member 141 is bent in the form of a U to embrace annular members which project from the limbs of the U and are formed with diverging lip portions 142, 143; the members are produced by stamping and are brazed or silver-soldered to one another.
Patent GB-367090-A (GB)
Title: Improvements in method and apparatus for mixing powdered solid materials with liquids, particularly in the production of dough
IPC: A21C1/00
Filed: 1930-12-19
Abstract: 367,090. Dough mixing and kneading apparatus. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(American Machine & Foundry Co. ; 511, 5th Avenue, New York, U.S.A.) Dec. 19, 1930, No. 38360. [Class 86.] Apparatus for continuously mixing dough comprises means for spraying water on to a freely falling stream of flour, and collecting and kneading the moistened particles into a mass which is divided as it is extruded from the apparatus. The flour is fed to a screen through which it falls on to a diverging cone, the stream being sprayed by jets arranged tangentially to the stream and converging downwardly thereon. The particles are scraped from the walls of a conical container and are extruded and kneaded by a worm conveyer. The particles of flour may be electrically charged. The flour is fed from a hopper 10, fitted with a stirrer 12, by means of a worm 16 and falls on to a screen 29 fitted with rotary blades 31. The stream falls on to a cone 42 and is sprayed by jets 44 which, as shown in Fig. 5, are tangentially arranged to the stream, and are directed downwardly. The jets are enclosed in a conical casing 43 the sides of which are scraped by a blade 45 rotated by bevel gearing 60, 61 protected by a conical cover 71. The particles are kneaded by a pair of helical blades 77 which extrude the mass through dies 84. The mass is divided by a rotating blade 87. The flour may be electrically charged as it falls through the screen by insulating the funnel 28 carrying the screen and connecting it to the positive pole of a generator, the negative of which is earthed ; the jets are also earthed. The water is supplied to the jets from a pressure chamber supplied by an electrically driven pump from a tank.
Patent GB-1198811-A (GB)
Title: Improvements relating to Polyvinyl Chloride Compositions
Inventor: DRYER STANLEY RAYMOND COLLINS
IPC: C08K5/01
Filed: 1966-08-26
Abstract: 1,198,811. PVC compositions. BRITISH PETROLEUM CO. Ltd. 17 Aug., 1967 [26 Aug., 1966], No. 38369/66. Heading C3P. PVC (homopolymer or copolymer) is mixed with 5-43 p.h.r. of an aromatic hydrocarbon fraction containing at leat 90% aromatics derived by treatment of a solvent extract obtained from a petroleum fraction boiling above 275‹ C. to give a composition of higher tensile strength than the original PVC. The fraction is obtained by solvent extraction of a lube oil, using two extractions. There may also be added silica, diatomaceous earth, titania, carbon, clay or talc as fillers which may be coated with lithium stearate lubricant, lead or tin stabilizers, e.g. lead diphosphite in dioctyl phthalate and calcium stearate.
Patent GB-1014695-A (GB)
Title: Rotary clutches
Inventor: CLEMENTS HERBERT ARTHUR
IPC: F16D23/10
Filed: 1963-09-30
Abstract: 1,014,695. Ratchet clutches. S.S.S.PATENTS Ltd. Sept. 23, 1964 [Sept. 30, 1963], No 38474/63. Heading F2C. A synchronous self-shifting clutch of the type having a helically splined intermediate sleeve between the driving and driven members is provided with locking means preventing disengagement of the sleeve during drive, the controlled application of fluid pressure relieving the load on the locking means to condition the clutch for self-disengagement. In the form shown in Fig. 1 the intermediate sleeve 10 has a helical splined connection 11, 12 with a sleeve 3 secured to the driving flange 6 and a dog-tooth connection 8, 13 with a sleeve 1 secured to the driven member 2, and also carries pivoted pawls 14 engageable with ratchet teeth 9 on the sleeve 1. A control sleeve 32 operated by a lever 35 has a straight-splined connection 30, 31 with the intermediate sleeve 10 and a dog-tooth connection 33, 36 with a hollow cylindrical member 16 secured to sleeve 3. The cylinder houses an annular piston 19 secured to sleeve 10 and may be supplied with pressure liquid from a pump 37 through ducts 22, 23 ... 28, 29. In the clutch engaged position, shown in the upper half of Fig. 1, a control valve 41 passes the delivery from pump 37 to exhaust and drive is transmitted through dog teeth 33, 36, splines 30, 31 and dog teeth 8, 13. To disengage the clutch valve 41 is closed and the pressure liquid acting on piston 19 causes the end surface 46 of sleeve 10 to engage a surface 47 on sleeve 3, thus relieving the teeth 33, 36 and splines 30, 31 of load, the drive being taken by the helical splines 11, 12 and teeth 33, 36. Control sleeve 32 can then be moved to the right by fork 35 to disengage teeth 33, 36, and valve 41 opened to release the pressure on piston 19, splines 11, 12 moving sleeve 10 quickly to the right to disengage teeth 8, 13 and bring the clutch to the released ratcheting condition shown in the lower half of Fig. 1. In the arrangement according to Fig. 2, input and output members 50, 55 are connected by a sleeve 59 through helical splines 53, 60 and dog teeth 58, 61. The member 50 carries a cylinder 54 housing a piston 65 at the upper end of a rod 64 whose lower end carries a ring 68 formed with a series of dog projections 71 engageable with a series of similar fixed projections 79. To engage the clutch pressure liquid is supplied to the underside of piston 65 to engage teeth 58, 61 and lift projections 71 clear of the lower projections 79, a lever 80 rotated to bring the ends of the projections into alignment, and the pressure is then released to allow the ends of projections 71 to rest on those of projections 79 as shown on the right of Fig. 2. To release the clutch liquid is again supplied to piston 65 to separate projections 71, 79, lever 80 is moved in the reverse direction, and on releasing the pressure sleeve 59 drops by gravity to disengage teeth 58, 61, while projections 71, 79 re-engage, as shown on the left of Fig. 2.
Patent GB-1224618-A (GB)
Title: Preparation of fluorophenyl-salicyclic acid derivatives
Inventor: SCHOENEWALDT ERWIN FREDERICK
IPC: B01J27/00
Filed: 1968-08-12
Abstract: 1,224,618. 5 - (4 - Fluorophenyl) salicylic acid and its O-acetyl derivative. MERCK & CO. Inc. 12 Aug., 1968 [14 Aug., 1967], No. 38483/68. Heading C2C. 5 - (4 - Fluorophenyl) - salicylic acid or its O-acetyl derivative may be obtained by aging, at a temperature in the range 0 to 400 C. but below the point at which undesirable side reactions occur, a compound of general formula in which X is a hydroxy or acetoxy radical or a radical convertible thereto under the aging conditions, Y is a fluorine-containing diazonium radical or a fluorine-containing acidic radical, E is a carboxy radical or a radical convertible thereto under the aging conditions, and each Q, which may be the same as or different, is a hydrogen atom or a radical replaceable by H under the aging conditions. X may be a OH, acyloxy, methoxy or metal-oxy radical. Y may be a diazonium fluoride, diazonium fluoroborate, diazonium fluorophosphate, diazonium silicofluoride, diazonium antimony fluoride, or a -SO 2 F, -SO-F, -CO-F, -CS-F, -O-CO-F, -S-CO-F, -POF 2 , -PF 2 , -PF 4 , -AsOF 2 , or [(CH 3 O-#-I<SP>+</SP>)F<SP>-</SP>] radical. E can be -COOH, -CO.COOH, -CO.COO alkyl or -CO.O.COCH 3 . Q may be H or -COOH. 5 - (4 - Fluorosulphonylphenyl) salicylic acid is obtained by reacting 4-(4-sulphophenyl) phenol with CO 2  in the presence of K 2 CO 3 , acidifying to form 5-(4-sulphophenyl) salicylic acid then reacting with POCl 3  then with NaF to form the fluorosulphonyl compound. Alternatively, 5-phenylsalicylic acid is treated with fluorosulphonic acid, or 5-phenylsalicylic acid benzoate is subjected to 4-fluorosulphonation. 41 - (3 - Carboxy - 4 - acetoxy) biphenyl - 4- anisyliodonium fluoride is formed by stirring 4- iodoanisole in acetic anhydride and HF, adding H 2 O 2  then reacting with 5-phenylsalicylic acid at - 20 to 0 C.
Patent GB-1034699-A (GB)
Title: Discharge lamp
IPC: H01J61/12
Filed: 1964-09-22
Abstract: 1,034,699. Metal-vapour lamps. WESTING- HOUSE ELECTRIC CORPORATION. Sept. 22, 1964 [Oct. 21, 1963], No. 38598/64. Heading H1D. The filling of a mercury vapour discharge lamp includes at least 1 mg.cm.<SP>-3</SP> of sodium iodide, 0À1 to 0À9 mg.cm.<SP>-3</SP> of thallium iodide, and at least 0À35 mg.cm.<SP>-3</SP> of thallium metal, whereby the additional thallium iodide formed during operation of the lamp by the dissociation of sodium iodide produces negligible change in the colour output. The discharge vessel 12 is mounted in the sealed outer envelope 24, and additionally contains argon at 20 torr as starting gas and, optionally, the iodide of indium, zinc or lithium, to modify the colour. The auxiliary starting electrode 30 is in series with a resistor 32. The distance between the main electrodes 14 may be 57 mm., and the lamp is operated at a minimum temperature of 580‹ C., the mercury filling being wholly vaporized.
Patent GB-1273428-A (GB)
Title: Improvements in or relating to measuring instruments
IPC: G01R19/165
Filed: 1969-08-01
Abstract: 1,273,428. Voltage monitoring. STANDARD TELEPHONES & CABLES Ltd. July 29, 1970 [Aug. 1, 1969], No.38733/69. Heading G1U. In order to check that the amplitude of each cycle of a block of n cycles of an A. C. waveform lies between upper 4 and lower 3 threshold levels, the cycles are counted in a first counter 5 having a capacity of n, every cycle that exceeds the lower threshold is counted in a second counter 6, every cycle that exceeds the upper threshold causes the second counter 6 to be reset to zero, and every time the first counter is full its contents are compared 8 with those of the second counter to produce a "pass" or a "fail" indication. As described n = 7, (binary 111), and the second counter could be reduced by a fixed amount - rather than being reset to zero - each time a cycle exceeds the upper threshold level, whereby various degrees of tolerance can be catered for.
Patent GB-1392700-A (GB)
Title: Digital logic display device
IPC: G06F11/32
Filed: 1973-08-16
Abstract: 1392700 Logic and display HEWLETTPACKARD CO 16 Aug 1973 [21 Sept 1972] 38774/73 Heading G4H In a digital logic display device, first and second storage means retain first and second sequences of bits respectively, there being logic means for performing a plurality of Boolean operations on pairs of corresponding bits from the two sequences, first display means for displaying the first sequence, and second display means for displaying in a first mode the second sequence and in a second mode the result of a Boolean operation performed on each said pair. As disclosed, a first sequence of 32 bits "B" is shifted into a 32-bit shift register, then loaded in parallel into four 8-bit recirculating shift registers which each feed a respective set of 8 light-emitting diodes and a respective one of four logic units serial-by-bit. A second sequence of 32-bits "A" is passed into similarly arranged shift registers, the four 8-bit shift registers in this case each feeding a respective one of the four logic units. The logic units feed "A", "A and B", "A or B", or "A excl- or B" (according to a switched selection) serial-by-bit to sets of 8 light-emitting diodes, one set per logic unit. The eight sets of 8 light-emitting diodes are scanned together by an 8-stage shift register containing a single "1", so that in each set the diodes are enabled in turn.
Patent GB-950432-A (GB)
Title: Improvements in or relating to hydraulic regulators
IPC: G05D11/00
Filed: 1962-10-15
Abstract: 950,432. Fluid-pressure servomotor systems. K.T.KALLE. Oct. 15, 1962, No. 38949/62. Heading G3P. In a control system for regulating a physical condition, such as pressure, temperature, liquid level, and comprising a gear pump 18 driven at constant speed by an electric motor and supplying a single-acting servomotor 12 with an air-liquid mixture under a pressure that is determined by the proportions of air and liquid admitted to the pump, the pump has an outlet 31 with a restricted escape passage 32, an air inlet 19 in which the pressure is maintained always below atmospheric by the variable throttling action of an air admission valve 21, and liquid inlets 25, 26 for each gearwheel of the pump spaced at least two gear pitches from both the air inlet 19 and the outlet 31. As applied to the control of liquid level in a tank 1 the apparatus has a lever 22 carrying the valve 21 and pivotable about a diaphragm mounting 34 by a diaphragm 35 subject to pressure in a tube through which air is discharged into the liquid in the tank. Proportional, time-differential and time-integral functions in various combinations, depending upon the settings of needle valves 46, 47, are introduced by a piston 38 subject to the pressure in the inlet 19 and communicating through the valve 47 with a reservoir 52 and through the valve 46 with a piston 41 connected through a spring 43 with the lever 22. The servomotor actuates a weighted lever 16 of a liquid admission valve 5 to the tank through a wire 15.