baber/WOPTO huggingface dataset:
Patent GB-119404-A (GB)
Title: Improvements in and relating to a Combined Oil Filter and Water Separator and Oil Cooler.
Inventor: BARRY RICHARD
IPC: B01D17/00
Filed: 1918-03-22
Abstract: 119,404. Barry, R. March 22, 1918. Recovering waste lubricants. -- Relates to apparatus for filtering oil and freeing it from water in which a funnel connected to a central tube is mounted on a vessel in which the oil is filtered and separated from the water by gravity. To the removable cover 4 of the vessel 1 are screwed two tubes 6 and 9. The tube 8 terminates in a funnel 9, and the tube 6 in an inverted funnel 21, in the mouth of which is placed a filtering-disk 23 of wiregauze held in place by a split ring 24. The vessel 1 contains washing and cooling water, and is provided with draw-off cocks 11, 13 for the oil and water respectively, and corresponding gaugeglasses 10 and 12.
Patent GB-1416121-A (GB)
Title: Steel resistant to intergranular stress corrosion cracking
IPC: C22C38/00
Filed: 1974-02-04
Abstract: 1416121 Steel NIPPON KOKAN KK 4 Feb 1974 [16 Feb 1973] 05108/74 Heading C7A An intergranular stress corrosion cracking resistant steel comprises:- the balance, apart from unavoidable impurities, being Fe. Use:- As tubes or vessels in environments containing nitrogen oxides, nitrates or other corrosive agents.
Patent GB-1223681-A (GB)
Title: Flow distributors for internal combustion engine fuel injection systems
Inventor: WARNE EUGENE HAROLD
IPC: F02M69/50
Filed: 1967-02-02
Abstract: 1,223,681. 681. Rotary positive-displacement hydraulic-machines. JOSEPH LUCAS (INDUSTRIES) Ltd. May 2, 1968 [Feb.2, 1967], No.5110/67. Heading F1F. A flow distributer for use in a liquid-fuel injecting-system for an internal-combustion engine includes a rotor 16 furnished with outwardlysliding radial-vanes 17 that engage with the peripheral wall of a cylindrical cavity 11 within a fixed body (not shown), which wall contains chambers 14 connected to a common fuel-inlet 10 and respective fuel-injecting nozzles 9 by passages 12, 13 and 15. In operation, the fuel entering the chambers 14 effects rotation of the rotor and thereby causes the fuel that has previously entered each chamber to be ejected by the respective vane through the corresponding passage 15.
Patent GB-163486-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H21/18
Filed: 1920-02-20
Abstract: 163,486. Pyne, H. D. Feb. 20, 1920. Switches, quick-break; contacts.-In a switch of the kind comprising a number of contact arms D secured in an insulating manner upon a common spindle A having bearings in the sides of the box, the spindle is removably mounted so that it may be withdrawn from the box together with the contact arms, and it is held in place by a swivelling plate I on the exterior handle side of the box which engages with a reduced part of the spindle. The operating-handle has an enlargement loosely engaging the spindle and driving it with lost motion by means of a pin-and-slot connection. A spring G secured to the casing and to the spindle produces a quick break. The contact arms have renewable tips bent at rightangles at their extremities to engage the fixed clip contacts.
Patent GB-703274-A (GB)
Title: Improvements in or relating to machines organised for applying pressure to the bottoms of shoes
IPC: A43D35/00
Filed: 1951-03-03
Abstract: 703,274. Shoe-bottom presses. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). March 3, 1952 [March 3, 1951], No. 5188/51. Addition to 623,295. Class 17(1) With a view to safeguarding the hands of the operator during the pressure applying operation of the machine of the parent Specification it is modified by the provision of a pair of manually actuatable button devices 66, 68 out of the danger zone of the pressure-applying means and both of which require to be operated before the final high pressure can be applied to the work. The devices 66. 68 are arranged to act, in series, on fluid in a circuit of the machine to cut out a pressure-limiting relief valve 86, or 86<1> (not shown) according to which of the two stations of the machine is in operation at that time. The full pressure remains on the workpiece until the rotary control valve 36 (not shown) is turned through an angle of 45 degrees by operation of a treadle 38.
Patent GB-916775-A (GB)
Title: Production of phenol-furfural novolak resins
Inventor: WHITNEY JOHN E S
IPC: C08G8/04
Filed: 1959-02-14
Abstract: Novolak condensation products are produced by heating together under substantially anhydrous conditions, in the presence of, as catalyst, a salt of an electropositive metal in the divalent state with an acid having a dissociation constant k of from 1,7 X 10-2 to 1,0 X 10-6 at 25 DEG C., a mono- or dihydric phenol having at least two of the positions ortho or para to the phenolic group or groups unsubstituted, or a mixture thereof, and an aldehyde having the general formula <FORM:0916775/IV(a)/1> in which X is oxygen or sulphur and Y is hydrogen or C1-4 alkyl or alkylol, in such proportions that not more than 1 mol. of aldehyde reacts with each mol. of phenol.  Specified aldehydes are furfural, a -thiophenealdehyde, a -methyl furfural and hydroxymethyl furfural. Phenols mentioned are o, m, or p-cresol, 3,5-or 2,3- or 2,5-xylenol, o, m, or p-ethylphenol, o, m, or p-isopropylphenol, cardanol, hydrocardanol, urushiol, o or p-isopropenyl phenol, p-tert-butyl phenol, resorcinol, diphenylol methanes and diphenylol propanes. Examples of acids the salts of which may be used as catalysts are sulphurous, boric, formic, acetic, propionic, butyric, isobutyric, monochloroacetic, a -chloropropionic, lactic, benzoic, o-chlorobenzoic, salicylic and pyromucic; preferred metal components of the salts are cobalt, lead, magnesium, manganese, zinc and cadmium.  The novolacks may be converted into the insoluble state by heating with, for example, hexamethylene tetramine, phenol-formaldehyde or phenol-furfural resols, a polymethylol urea, a polymethylol melamine, dicyandiamide, melamine, piperidine, sulphuric acid, p-toluene sulphonic acid, ethyl hydrogen sulphate, potassium bisulphate, aroyl peroxides or alkali metal or ammonium persulphates. In the examples (1) the novolak is formed from phenol and furfural in the presence of (a) the zinc salt of pyromucic acid (the pyromucic acid is formed in situ from zinc peroxide and furfural) or (b) zinc acetate; novolak 1(b) may be cured with sulphur \sB mercaptobenzthiazole, piperidine, benzoyl peroxide, aluminium chloride, dicyandiamide, boron trifluoride-phenol complex, p-toluene sulphonic acid or ammonium persulphate (2) the novolak is formed from resorcinol and furfural in the presence of lead acetate (3) the novolak is formed from a coal tar fraction and furfural in the presence of cadmium formate (4) the novolak is formed from mixed cresols and furfural in the presence of manganese lactate (5) the novolak is formed from cashew nutshell liquid and furfural in the presence of manganese salicylates and a silicone based antifoaming agent.
Patent GB-139221-A (GB)
Title: Improvements in artificial teeth
IPC: A61C13/00
Filed: 1920-02-20
Abstract: 139,221. Arkin, W. June 12, 1916, [Convention date]. Teeth, artificial.-A detachable artificial tooth A is formed with a recess m of rectangular, oval, or other non-circular cross-section surrounded by a projecting wall m<x>, and is secured by cement to a bridge, crown, or other backing B fitted with a pin t, Fig. 12, adapted to enter the recess m and formed with a head t<1> recessed at t<2> to receive the projecting wall m<x>. The wall m<x> forms part of a tube m<9>, Figs. 3 and 8, which is formed with a serrated or like flange m<1> at its inner end and is embedded in the tooth A. The surfaces of the pin t and recess m may be roughened, and the end of the pin t may be recessed at t<3> to receive cement, so that the pin is not visible through the translucent porcelain of the tooth. The Specification as open to inspection under Sect. 91 (3) (a) describes also a modification, shown in Fig. 13 (Cancelled), in which the wall m<x> is integral with the tooth A. This subjectmatter does not appear in the Specification as .accepted.
Patent GB-782760-A (GB)
Title: Improvements relating to the separation of materials into fractions by screening
Inventor: AHLMANN NIKOLAI
IPC: B07B7/08
Filed: 1955-02-22
Abstract: 782,760. Screening apparatus. SMIDTH & CO. AKTIESELSKAB, F. L. Jan. 16, 1956 [Feb. 22, 1955], No. 5332/55. Class 117 A method of separating a powder into a fine fraction and residue consists in passing jets of air through a part of the surface of a screen in a direction opposite to that in which the fine fraction passes through the screen, subjecting another part of the surface to suction which tends to draw the fire fraction through the screen, and providing relative movement between the jets and the screen so that the screen is first penetrated by the jets and shortly thereafter subjected to suction. In Fig. 1 a screen 13, on which the material is placed is held between the parts 7 and 11 of a cylindrical casing, and a fan 6 delivers air to perforated hollow arms 20, Fig. 2 rotatably mounted on the end of an air delivery pipe 10. The perforations 21 in the arms may be inclined so that the flow of air through them causes rotation of the arms. The fan inlet pipe 5 applies a suction to the screen, and the arrangement is such that air from the perforations cleans the screen, and fine particles which pass through drop and are drawn into a filter bag 3. The arms may be driven by an electric motor. In Fig. 3 a rotary conical screen 22 is mounted within casings 31 and 32 on a rotary shaft 27 and a suction is maintained in the casing 31 by connecting the inlet 44 of a compressor 37 thereto via a cyclone 43. The compressor outlet delivers air through a pipe 36 and manifold 35 to perforated pipes 33 emitting air streams 34. Material is fed to the screen interior through a shoot 38 and worm conveyer 39, and the fine fraction passes through the screen and is discharged from the cyclone at 45. The residue is discharged from the casing 32 at 47. In a modification of the device of Fig. 3 the screen is not surrounded by a casing , and suction is set up locally by arranging a suction pipe parallel and closely adjacent each perforated air emitting pipe. Both sets of pipes have one long orifice facing the screen which rotates in such direction that each part of the screen in turn is subjected to suction directly after it has been struck by air jets. The fine fraction which is not drawn into the cyclone falls into a hopper.
Patent GB-923920-A (GB)
Title: Improvements relating to capacitors
Inventor: TRUMPER ERNST
IPC: H01G4/224
Filed: 1962-02-13
Abstract: 923,920. Capacitors. HYDRAWERK A.G. Feb. 13, 1962, No. 5507/62. Class 37. Relates to a capacitor including a terminal shroud assembly wherein the capacitor 1 has terminals 3, across which a resistor 2 may be connected, and the shroud assembly comprises two insulating members one of which 4 is applied loosely to the capacitor terminals so that it shrouds part of the terminals and the resistor, if provided, while the other insulating member 5, which is applied to the terminals following the application of said one member, has screw terminals 6 for engaging the capacitor terminals and so securing the two insulating members in position. The insulating member 5 is comprised of porcelain, and the screws 6 are located within countersunk holes therein.
Patent GB-1361301-A (GB)
Title: Control circuit
IPC: H02P7/29
Filed: 1972-02-07
Abstract: 1361301 Control of D.C. motors CKD PRAHA OBOROVY PODNIK 7 Feb 1972 [8 Feb 1971] 5572/72 Heading H2J [Also in Division G3] A control circuit for a D.C. motor 13, 14 comprises a chopper having main and commutating thyristors 6, 7 in series with an inductor 4 and the motor, the thyristors being triggered by respective pulse generators 20, 21 controlled by a unit 22 which has inputs connected to a required current signal (from potentiometer 24), an actual current signal (from 15) and the output of a comparator 23 which compares the motor current with the charge on a commutating capacitor 8. The unit 22 comprises a flip-flop responsive to the difference between the inputs from 24 and 15, which are both connected to the base of an input transistor, the output of the flip-flop being connected, together with the signal from comparator 23 (which has a Schmitt trigger and so is on/off in nature), to a monostable circuit which controls the pulse generator. The generator 20 for the main thryristor 6 produces a train of triggering pulses and comprises a transformer coupled blocking oscillator while that for the thyristor 7 produces a single pulse from a transistor circuit. The arrangement is such that when the current is below the desired value a train of pulses from 20 triggers on thyristor 6 until the current reaches the desired value or the value set by the voltage on the commutating capacitor, whereupon generator 21 produces its pulse to turn on 7 and hence turn off 6. The object is to ensure that the current does not rise to such a value that the commutating capacitor would be ineffective to turn off 6. The circuits are illustrated in detail (Fig. 2, not shown). The thyristors are protected by RC circuits 16 ... 19.
Patent GB-608470-A (GB)
Title: Improvements in or relating to electric switches and contacts therefor
IPC: H01H1/42
Filed: 1946-02-25
Abstract: 608,470. Air-break switches. GENERAL ELECTRIC CO., Ltd., and KEELEY, F. J. Feb. 25, 1946, No. 5797. [Class 38 (v)] Jaw contacts, particularly of an outdoor isolating switch, are constrained to have separating movement if they tend to follow the moving contact when the latter is withdrawn. Jaw contacts 2, having renewable facings 3, are each pivotally carried by two parallel rods 6, 7 guided within T-shaped members- 8, 9 having fixed pivots 12 in plates 10 carried by a U- shaped member 5 which supports the contact structure. Springs 14, 15 provide contact pressure on a moving contact 1, and nuts 16, 17 limit expansion of these springs so that the jaws separate laterally if they tend to cling to the contact 1 as it withdraws upward, e.g. when ice-coated. The contacts 2 are biassed to the position shown by springs 20, and stop nuts 21 limit their downward movement. The contact 1 is arranged to close at high speed and thereby break any ice which has formed.
Patent GB-525478-A (GB)
Title: Improved manufacture of malleable iron
IPC: C22C33/08
Filed: 1939-02-22
Abstract: 525,478. Alloys; annealing. GENERAL MOTORS CORPORATION. Feb. 22, 1939, Nos. 5838 and 5839. Convention dates. Feb. 23, 1938, and Sept. 10, 1938. Drawings to Specification. [Classes 72 and 82 (i)] Malleable iron castings are made from iron containing graphitizing agents equivalent in effect to 1.3 per cent. or more of silicon, particularly 1.3 - 2.25 per cent., and a small amount of tellurium, which may be 0.0001 - 0.2 per cent. with or without 0.25 - 2' per cent. of copper and 0.1 - 0.75 per cent. of molybdenum. The carbon content may be 2 - 3.5 per cent. The tellurium may be added as such, or as oxide or other compound, or as an alloy. The annealing operation may comprise heating to 900‹F. for 4 hours followed by heating to 1700‹F.; or heating to 1700‹F. for about 8 hours, cooling to 1400‹F. at the rate of about 150‹F. per hour and then to 1300‹F. at 7‹F per hour. Hardness may be increased by quenching in oil or air from about 1700‹F.
Patent GB-230623-A (GB)
Title: An improved carburettor
IPC: F02M9/08
Filed: 1924-03-07
Abstract: 230,623. Cnudde, R. E., (trading as O'Connor & Co., T. K.), and Poirmeur, L. I. March 7, 1924. Spray carburettors. - In a carburettor of the kind provided with a variable choke tube 31 composed of flexible metal strips 32 secured to top and bottom sleeves 33, 35, the lower sleeve 35, which is prevented from rotating, is provided with pins 36 which engage helical slots 37 in a rotatable sheath 38. The sheath 38 is adjustably connected to a control lever 46 bv slotted projections 42 which engage teeth 44 on the boss 45 of the lever 46. Fuel is supplied to the float chamber 2 through a filter 9, and the float 18, which slides on the valve stem 14, abuts against an adjustable stop 17 on the stem. The fuel supply to the well 27 of the nozzle is controlled by a needle valve 30. The nozzle 48, which screws into the well 23 is provided at the lower end 49 with one or more inlets below the normal fuel level, and the well 27 is provided with air inlets 51 above the fuel level.
Patent GB-308581-A (GB)
Title: Process of and apparatus for welding dental pieces
IPC: A61C13/00
Filed: 1929-02-22
Abstract: 308,581. Charlier, M. March 24, 1928, [Convention date]. Heating by electricity.-Dental parts of rustless steel are electrically spot welded whilst mounted in correct relative position on a model of the patient's jaw, one of the electrodes employed being pointed and the other having a large contact surface. The jaw model 7, carrying a plate 8 and tooth clasp 9 to be welded, is mounted on a plate 6 carried by an adjustable post 5. An adjustable clamp 10, with an indiarubber or like pad 12, is mounted on the plate 6 to hold the dental plate in position. An electrode 16 having a large contact surface., such as a bundle of metal wires, mounted on an articulated arm 13, 14, 15 is adjusted to make contact with the clasp 9, and a pointed electrode 20 is applied to the plate opposite the point to be welded. The electrodes 16, 20 are connected to the terminals of a transformer 18. The electrodes may be arranged as described above so that the welding current flows through both the parts to be connected, or both electrodes may be applied to the same part. Dental parts provisionally welded in this manner are sufficiently joined to be manipulated without deformation and -to be finally welded in the ordinary manner between two pointed electrodes.
Patent GB-880376-A (GB)
Title: Improvements in and relating to shrouds for electrical cable connections
Inventor: JACKS ERIC
IPC: H02G3/06
Filed: 1957-02-21
Abstract: 880,376. Couplings. ENGLISH ELECTRIC CO. Ltd. Feb. 14, 1958 [Feb. 21, 1957], No. 5901/57. Class 38 (1). A shroud 14 for an electric cable connection includes a tapered, resilient, e.g. rubber, sleeve 16 having an integral flange 18 which forms at least part of a wall of the shroud. The shroud, of moulded insulating material, is in two halves and is supported by a bus-bar 10 about which it is clamped. The flange 18 is made less resilient than the tapered portion by selective curing. The sleeve is externally stepped to indicate where it should be cut to take any of a range of standard sized cables,
Patent GB-594813-A (GB)
Title: An arrangement of electric contacts on a bi-metal thermostat
IPC: H01H37/52
Filed: 1946-02-26
Abstract: 594,813. Thermal switches. WEBBER, C. W. Feb. 26, 1946, No. 5981. [Class 38(v)] One arm of a bimetal element 3 is fixed and carries a threaded adjusting rod, the taperec point of which is engaged by a leaf spring 1 so that contacts 2 separate at a predetermined temperature when the free arm moves towards the fixed arm. The arrangement is such that the parts are free from strain when the apparatus is not in use.
Patent GB-1060345-A (GB)
Title: Electro-magnet apparatus
Inventor: GRANGER ALAN TILNEY
IPC: H01F7/18
Filed: 1965-02-11
Abstract: 1,60,345. Automatic control of lifting magnets. VICKERS Ltd. Jan. 14, 1966 [Feb. 11, 1965], No.6063/65. Heading G3R. A lifting electromagnet 1-3 is supplied through a device 4 which is controlled by the difference between a load cell signal 6 and a reference 7. Increase of the load cell signal during acceleration may be countered by a signal from an accelerometer, the output of which may be fed to a potentiometer whose slider is ganged to the reference slider 7. A demagnetizing winding may be provided on the magnet. The load cell may be of the strain gauge type. The device 4 may incorporate valves, transistors, or thyristors.
Patent GB-771140-A (GB)
Title: Improvements in or relating to blast furnace charging systems
IPC: C21B7/18
Filed: 1955-03-01
Abstract: 771,140. Charging blast furnaces. TESCH AKTIEBOLAG, T. A. March 1, 1955 [March 15, 1954], No. 6071/55. Class 51 (2). Blast furnace charging apparatus of the type comprising two superposed buffers with associated bell valves and and a vertically movable charge distributing bell is operated so that the charging is automatically carried out in accordance with a predetermined changing sequence or programme. In the embodiment shown in Fig. 1, the rotary hopper C is closed by the bell 3, and the large hopper B by the bell 4 with which is associated the distributing bell 5, which may pass through the hopper opening into a lower position in which it spreads the charge over the furnace shaft, Fig. 2 (not shown). The bells 3, 4 and 5 are operated by cables 23 attached to the pistons 12, 15 and 17 of fluid pressure cylinders 11, 14 and 16 respectively. Dumping of the skip 1 into the hopper C operates a switch 25, starting the pump 9, and opening valve 41, to operate piston 12 and open bell 3. When piston 12 reaches its top position it operates a switch to stop the pump 5 and the weight of the piston causes it to drop again when a further switch is operated to close the valve 41. The bell 3 is restored by a counterweight 13. When a given number of skip loads have been dumped into the hopper B, the bells 4 and 5 are actuated automatically as follows. On each full stroke of the piston 12, a pawl 26 attached to the piston rod 6 turns a ratchet wheel 27 attached to a circular disc 28 carrying removable pins 29, Fig. 5, on the rim, said pins being spaced apart a sufficient angular distance to account for the desired number of operations of the bell 3. A pin 29 engages a tooth on a second ratchet wheel 30 carrying a disc 31 on one side of which are removable pins 32, one of which is thus caused to strike a switch 33. The pump 9 is again started and valve 42 opened to operate piston 15 and lift bell valve 4. At the same time a pin on the other side of the disc 31 strikes a switch 35, opening valve 43 and and actuating piston 17 to lower the distributing bell 5 into the furnace shaft. A modified charging device, Fig. 3 (not shown), has a fixed part-conical distributing device in the shaft forming with the bell 5 a conical distributing device feeding the charge to the outer parts of the shaft. A further modification, Fig. 4, has concentric part-conical distributing devices D and E, and, according as the bell 5 is lifted into hopper B or lowered into position 5<SP>11</SP> or 5<SP>111</SP>, the charge is distributed to the centre, to an intermediate position or to the outer area respectively of the shaft. The bell 5 is moved to position 5<SP>111</SP> by a pawl and ratchet device 38, Fig. 5, similar to that previously described, and which operates a switch 40 to start the motor 21 and raise the cylinder 17 bodily. This device is of course omitted from the control mechanism shown in Fig. 5 when this latter is associated with the first embodiment. The distributing bell 5 is raised by a counterweight 18.
Patent GB-139310-A (GB)
Title: A means for controlling the submersion and the raising of pontoons and the like
IPC: B63C7/04
Filed: 1919-03-11
Abstract: 139,310. Neale, M. L. March 11, 1919. Sunken ships, raising; caissons. - The raising and submersion of pontoons is controlled by a series of buoys connected by cables to the pontoons, resilient means being provided in the cable connexion, and winding-means provided either in the buoys or on the pontoons. Figs. 1 and 2 show a form in which the buoys 1 carry cables 2 attached to each end of the pontoons. Mounted to slide on guides 4 in the buoy and supported on springs 5, Fig. 2, is a winding-drum 7 operated by an electric motor 8. Geared to the winding-drum 7 is a brake drum 10 cooperating with electrically-controlled brake shoes 10<a> to regulate the rate of raising or lowering of the pontoon. In place of electrical operation the winding-drum and brakes may be pneumatically controlled. Fig. 4 shows a modified apparatus in which the winding-drum 7 and motor 8 are mounted on the pontoon and the cable 2 led around pulleys on a spring-loaded arm 13.