baber/WOPTO huggingface dataset:
Patent GB-488317-A (GB)
Title: Improved turfing iron
IPC: A01B1/24
Filed: 1937-04-13
Abstract: 488,317. Turf - cutting appliances. STEPHENS, F. A. April 13, 1937, No. 10476. [Class 6 (ii)] A tool for cutting plugs of turf for replacing patches in lawns &c. comprises a blade B in the form of a part of a cone, the cutting edge E being perpendicular to the axis of the cone. The cutting edge may be semicircular and the blade may comprise half of a right cone. The apex of the blade is provided with a socket N for the attachment of a shaft S. The upper edges F of the blade are bent over to enable the tool to be driven into the ground by the foot.
Patent GB-527212-A (GB)
Title: Improvements in or relating to mercury switches
IPC: H01H29/18
Filed: 1939-04-04
Abstract: 527,212. Mercury switches. ADLAKE CO. April 4, 1939, No. 10489. Convention date, April 14,1938. [Class 38 (v)] In a mercury switch in which change in the level of the mercury, produced, e.g., by the movement of an electromagnetically-operated displacer 46, causes mercury to bridge two electrodes 32, 33, the electrodes are mounted in a cup 39 having a small hole 45 through which mercury passes to cause a slow " make " or "break." In the form shown, energization of a magnet 26 raises the displacer 46 and mercury slowly passes out of the cup 39 through the hole 45 till the surface reaches an insulating sleeve 36 and the circuit between electrodes 32, 33 is broken. On de-energization of the magnet 26 the displacer 46 moves back and causes mercury to rise outside the cup 39 and flow over the slanting upper edge of the cup thus causing a quick " make." By using a smaller quantity of mercury, mercury could only enter the cup through the hole 45 and thus there would be a slow " make " as well as a slow " break." In a modification, Figs. 8, 9 (not shown), energization of the magnet lowers the displacer and so causes the " make" while de-energization causes the " break." In another modification, Fig. 11, a slow make of say 6 secs. is produced by the mercury entering the hole 45 in the manner described above, the gas escaping from inside the cup through a porous plug 62 and mercury trap 64. 'A very slow break of say three minutes is produced by the gas being able to gain re-admittance to the cup only through a dense porous sleeve 63 and the plug 62 and thus preventing the mercury escaping through the hole 45 at the rate it would otherwise do. The gas used to fill the switch envelope may include hydrogen and helium.
Patent GB-105311-A (GB)
IPC: G01G23/20
Abstract: 105,311. White, A. E., (Toledo Scale Co.). Nov. 14, 1916. Computing - apparatus.-Relates to a computing weighing- scale of the kind wherein the indicating-finger is provided with a reading line in the form of a wire. The invention consists; in the use of two parallel strands of wire arranged in a plane substantially at right-angles to the chart, so that errors of parallax may be avoided when taking the readings. The strands of wire 16 are secured at the upper end of the pointer to a lug 13, and at the lower end are looped round a pulley 12 carried by a shaft 10 adjustably mounted in a lug 9. The resilience of the shaft 10 maintains the wire strands in tension. The strands are spaced a little distance from the edge of the indicating- finger, as shown in the upper part of Fig. 2; or, alternatively, the edge of the indicating- finger may be cut away as shown at 20. The upper extremity of the indicating-finger is bent over the top of the chart to form an index 18, Fig. 3, on the customer's side of the scale.
Patent GB-1515826-A (GB)
Title: Graft copolymer and process for making it
IPC: C08F2/44
Filed: 1977-03-14
Abstract: 1515826 Grafting monomers on to inorganic materials MILCHEM Inc 14 March 1977 [15 March 1976] 10645/77 Heading C3P A so-called graft polymer is produced by graft polymerizing a monomer containing a vinyl, vinylidene or allyl group on to an inorganic substrate that is capable of initiating the polymerization, the reaction being carried out in an acid aqueous medium containing ceric ions in solution. Preferred inorganic substrates are particulate aluminosilicate clays and the monomer is preferably acrylic, or styrene. When the clay materials are used as the substrate, they apparently react as reducing agents, the initiation thus being of the redox type with the ceric ion acting as oxidising agent.
Patent GB-413087-A (GB)
Title: Improvements in or relating to the manufacture of artificial viscose silk
IPC: D01F2/12
Filed: 1933-04-10
Abstract: Viscose artificial silk of matt finish or dull lustre is obtained by adding to the viscose a solution of barium persulphate, preferably soon after the dissolving up of the xanthate in caustic soda, so that the barium persulphate gradually decomposes with the formation of barium sulphate during the ordinary process of ripening of the viscose.  The amount of barium persulphate added is sufficient to produce, for example, 4--10 per cent of barium sulphate calculated on the cellulose content of the viscose.
Patent GB-106962-A (GB)
IPC: H04R23/00
Abstract: 106,962. Kilburn, B. E. D., (Naamlooze Vennootschap de Nederlandsche Thermo- Telephoon Maatschappij). Jan. 25, 1917. Telephones, mounting and supporting.- The receiver of a thermic telephone is normally suspended from a lever 7, the end 9 of which engages a spring 10 to connect the leads 11, 12 through the springs 10, 13. When the receiver 1 is raised for use, the lever 7 allows the spring 10 to break contact with the spring 13 and to engage a spring 15 to connect the leads 11, 14. Springs 16, 17, which are normally out of engagement, are also engaged, through an insulating piece 20, to connect the leads 18, 19.
Patent GB-497577-A (GB)
Title: Reciprocating pump for delivering gases and liquids
IPC: F04B49/02
Filed: 1937-04-15
Abstract: 497,577. Hydraulic accumulators. BRAMBLE, W. H., and RUSTON & HORNSBY, Ltd. April 15, 1937, No. 10704. Drawings to Specification. [Class 69 (ii)] [Also in Group XXVIII] A hydraulic accumulator is arranged to have an elastic cushion of air under pressure and is connected to a pump, through a three-way valve, which is arranged to pump air or liquid. The other connection of the valve leads to hydraulic mechanism. Specification 497,578. [Group XXIV], is referred to.
Patent GB-781696-A (GB)
Title: Improvements in or relating to spring coiling machines
Inventor: BENNETT RICHARD
IPC: B21F3/04
Filed: 1956-04-09
Abstract: 781,696. Coiling. BENNETT TOOLS, Ltd. April 9, 1956, No. 10715/56. Class 83 (4). A spring coiling machine of the kind in which a length of spring wire stock is fed through at least one guide 11 tangentially to a mandrel 17 about which is directed by coiling members 18, 19 to form the turns of a spring is characterized in that the guide 11 is formed of ceramic material. The coiling members 18, 19 and a pitch-spacing tool 20 are also formed of the ceramic material. A spring-cutting tool 23 co-operates with a shear edge 22 on the mandrel 17 to sever a completed spring from the wire stock.
Patent GB-209655-A (GB)
Title: New or improved cartons
IPC: B65D27/00
Filed: 1923-04-20
Abstract: 209,655. Foster, A. W. April 20, 1923. Specially-shaped folding boxes; fittings, external.-A box for dried peas &c. is formed from a single blank comprising two main panels, one of which is provided with side flaps d which are folded over and locked in slots in the other panel and a closure flap e which is locked in the side flaps d and is extended to form a support e<1> for displaying the box on a counter &c. A cord f is provided for carrying the box which in shape resembles a marketing basket.
Patent GB-1032229-A (GB)
Title: Upright vacuum cleaner
IPC: A47L5/30
Filed: 1965-03-15
Abstract: 1,032,229. Suction cleaners. SUNBEAM CORPORATION. March 15, 1965 [June 10, 1964], No. 10870/65. Heading A4F. An upright suction cleaner comprises a main housing member 10 of moulded plastics material to the upper end of which the handle 44 (Fig. 1, not shown) is connected, and which is formed integrally with a suction nozzle 11, a fan chamber 12, and a motor chamber 15, the motor 17 being mounted on a plate 16 and inserted into the chamber 15 through a rear opening in the latter, and dust collecting and exhaust chamber 31, 13 being formed between the member 10 and front and rear cover plates 39, 19, respectively. The suction nozzle 11 contains a rotary brush 27 driven by a belt 28 from the motor shaft 25. Dust laden air drawn into the nozzle 11 by the fan 26 is exhausted upwardly through the passage 13, and downwardly through a paper dust bag 34 in the chamber 31, the air leaving the bag 34 being passed through a filter 36 into the motor chamber 15 to cool the motor 17 before being discharged through vents 30.
Patent GB-331873-A (GB)
Title: Improvements in adjustment means for vehicle brakes
IPC: B61H15/00
Filed: 1929-04-08
Abstract: 331,873. Rizzi, V. April 8, 1929. Compensating for wear.-A ratchet wheel 7 is secured to the brake operating shaft 1 and an enclosing casing 9 rotatable on the shaft is connected by a lug 13 with the pedal operated rod 4 so as to be oscillated when the pedal is depressed. The casing 9 comprises a recessed casting 9a closed by a cover plate secured by bolts 10, 11, 12. A spring-pressed pawl 17 pivoted on the bolt 12 rotates the ratchet 7 and shaft 1 to apply the brake and the return of the ratchet on release of the brakes is limited by a fixed pawl 26 pivoted on a pin 21 connecting arms 19a freely rotatable on the shaft 1 and maintained stationary by a rod 23 fixedly connected to the axle casing 2, bent to pass through aligned holes in the arms 19a and secured by a split pin 25. If the brake lining is worn movement of the ratchet wheel on application of the brake causes the pawl 26 to engage with the next ratchet tooth, limiting the return movement of the brake on release. The casing 9 is returned to its normal position by spring 16 causing the pawl 17 to take up a fresh tooth. The teeth of the ratchet are undercut with respect to the pawl 17 to ensure the brake moving clear of the drum.
Patent GB-880686-A (GB)
Title: Improvements in and relating to electric traction systems
Inventor: RAMSDEN HERBERT KAYE
IPC: B60L15/04
Filed: 1957-04-03
Abstract: 880,686. Control systems for engine-electric power plant. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 27, 1958 [April 3, 1957], No. 10898/57. Class 38 (4). [Also in Group XXXVII] A traction system comprises motors M1, M2, supplied from an engine-driven generator G having, in its field circuit, a regulator LR for controlling the generator voltage in response to the load conditions of the driving engine. The arm RA of the regulator is associated with a contact h for changing the series-parallel relationship of the motors at a predetermined position of the regulator. When the motors are operating in series and the engine becomes underloaded, the arm RA moves from position S to position P1, so reducing the generator voltage by slightly more than a half of its previous value. Closure of contacts h, j, k energizes contactor P1 to connect the motor M1 across the generator, an interlock contact then being opened to de-energize the contactor S. A further interlock contact is then closed to operate contactor P2 and to complete the transition from series to parallel-connection of the motors. Since the engine is still under-loaded, the arm RA continues its movement towards the position S1 so increasing the motor voltage. This ensures that the equipment does not hunt between the series and parallel motor-connection. If, when the motors are connected in parallel, the engine becomes overloaded so that the regulator is moved from the position S1 to the position S, the contact h opens and the contactors P1, P2 are de-energized. Contactor S is then closed to re-connect the motors in series. Since the generator voltage rises to slightly more than twice its previous value, the engine is still overloaded after transition and the regulator continues to move back towards the position P, shedding more load. This again prevents hunting. In addition to the contact h, the series-parallel contactors are controlled by a master controller MC. Specification 703,649 is referred to.
Patent GB-236520-A (GB)
IPC: F23D99/00
Filed: 1925-04-27
Abstract: 236,520. M÷ller, P. July 7, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Blow lamps.-A blow lamp comprises an oil reservoir b fitted with the usual pressure pump and oil admission cap, a burner head d secured by a socket c to the reservoir, an annular vaporizing chamber l surrounding the flame tube and deachably secured to the burner head, and a starting burner pan s for initially heating the vaporizing chamber. The fuel supply passage j to the vaporizing chamber is controlled by a needle valve q.
Patent GB-286116-A (GB)
Title: Improvements in and relating to screw thread cutting tools
IPC: B23G1/22
Filed: 1927-04-23
Abstract: 286,116. Carpenter, G. E., and Hattersley & Davidson, Ltd. April 23, 1927. Stocks and dies.-A circular bodv a knurled at b is recessed to receive one of a set of dies c. Interchangeable bushes g are rotatably mounted on the opposite side by their flanges.
Patent GB-192969-A (GB)
Title: Improved apparatus for applying sealing-wax
IPC: B43M1/00
Filed: 1922-04-18
Abstract: 192,969. Keesing, I. April 18, 1922. Sealing.-In wax-heating appliances of the kind having a spout which is heated, a heat-insulating partition 9 is provided to separate the spout 12 from the container 1 into which granular wax is fed through a tunnel 3, the partition 9 having an aperture 10 for passing the granular wax into the spout in the operative position, and allowing the molten wax to remain in the spout in the inoperative position. The spout is surrounded by electric heating-elements 14 encased in an insulating-sleeve 13, the conductor 7 passing through a hollow handle 6 provided with a button switch 8.
Patent GB-742009-A (GB)
Title: Improvements in or relating to television pick-up equipments and the like
Inventor: MANDEL PAUL
IPC: H04N5/228
Filed: 1953-04-21
Abstract: 742,009. Automatic control systems. RADIO-INDUSTRIE. April 21, 1953, No. 10952/53. Class 38 (4). [Also in Groups XL (b) and XL (c)] In a film scanner, the output from photo-cell 28 is applied to amplifier 1, D.C. restored in circuit 11 and applied to valve 6. The anode circuit 7, 8 is given a time constant of at least a few frame periods and controls the grid potential ofC.R.T. 30 so that the average output from amplifier 1 remains substantially constant.
Patent GB-351127-A (GB)
Title: Improvements in metallic columns and girders of the h and i beam type
IPC: E04B1/24
Filed: 1930-04-07
Abstract: 351,127. Girders ; columns ; constructional ironwork. WAIT, W., 65, Water Street, Newburgh, New York, U.S.A. April 7, 1930, No. 10978. [Classes 20 (ii) and 20 (iv).] Girders and columns are built up from flat plates of uniform thickness, with the edges of the web plates welded in grooves in the flange plates. These edges may be beaded, Fig. 4, flared, Fig. 5, or plain, Fig. 6; in the last form, the grooves may be flared to receive a metal filling. The flanges and web may be cut away for interlocking with other girders and columns.
Patent GB-1465786-A (GB)
Title: Stripline ferrite circulators
IPC: H01P1/387
Filed: 1974-03-12
Abstract: 1465786 Junction circulators SELENIA INDUSTRIE ELETTRONICHE ASSOCIATE SpA 12 March 1974 [20 March 1973] 11040/74 Heading H1W In a ferrite junction circulator of balanced stripline form, the spacing of the outer conductors is increased abruptly to define a central (junction) zone in which the ferrite elements 2 are located. The elements 2 lie on either side of the central conductor 4 and abut the steps 3 of height h which define the central zone. The fringing field created by the steps 3 generate a capacitance C f  which results in a decrease in the resonant frequency of the junction and eliminates the need for impedance transformers at the branches.
Patent GB-1463402-A (GB)
Title: Coated plastics substrates and coating compositions
IPC: C08J7/046
Filed: 1974-03-12
Abstract: 1463402 Siloxane resin/melamine-formaldehyde coating compositions OWENS-ILLINOIS Inc 12 March 1974 [12 March 1973] 11062/74 Heading C3T [Also in Division B2] A coating composition for plastics substrates is prepared by (1) heating a methyl tri(C 1-6  alkoxy)silane with 1À5-10 moles of water per mole of silane i.p.o. a hydrolysis catalyst for 1-10 hrs. at from 40 C. to the reflux temperature, to obtain a gel-free solution, (2) removing part of the volatiles by heating, to obtain a further condensed product, still in solution, optionally (3) removing the remaining solvent then dissolving it in an organic solvent, and (4) adding to the solution from step (2) or (3) a melamineformaldehyde resin, alkylated with methanol and a C 2-4  alkanol, in molar ratio at least 1 : 1, which is soluble therein. Preferably the silane is MeSi(OEt) 3 , hydrolysed with 2-3 mols of water i.p.o. HCl and concentrated to 45-55 wt. per cent solids, and the MF resin has a methyl: isobutyl ratio of 2-2À5 : 1, has a xylene tolerance of 275 lb per 100 lb of 80% solution in isobutanol, and amounts to 3-15 wt. per cent of the polysiloxane. In the examples is hydrolysed with 2À5 mols. of water i.p.o. 3 p.p.m. HCl under reflux, reduced to 45-50 wt. per cent solids and thinned to 30 wt. per cent solids with isobutanol immediately or after removing solvent and precuring in a wiped film evaporator and forming into flakes; to the solution is added a methylated isobutylated MF resin as above (80 wt. per cent solids in isobutanol, 8 wt. per cent of the polysiloxane), and the composition is applied to a polycarbonate resin surface.
Patent GB-719822-A (GB)
Title: Improvements in and relating to reversible electromagnetic machines
IPC: H02K27/00
Filed: 1952-05-02
Abstract: 719,822. Winding lavouts for dynamoelectric machines. ETABLISSEMENTS ST.-CHAMOND-GRANAT. May 2, 1952 [May 4, 1951], No. 11106/52. Class 35 A commutated armature winding is connected to a commutator having a number of segments which is a multiple of the number of armature coils so that successive coils are connected to segments which are progressively displaced round the armature. In the form shown there are twice as many segments 2 as there are armature coils 5, so that the windings are two-pole while the commutator is four-pole, the brushes 3, 9 being accordingly in quadrature. The machine may be used for various purposes, e.g. frequency changing, phaseshifting and conversion, some of which require revolution of the brushes, the stator being energized with single or polyphase A.C.
Patent GB-958434-A (GB)
Title: Improvements in or relating to bread boards or the like
Inventor: OATES HARRY HOLMES
IPC: A47J47/00
Filed: 1962-03-23
Abstract: 958,434. Bread boards; cheese tray. OATES Ltd. March 22, 1963 [March 23, 1962], No. 11213/62. Headings A4A and A4C. A bread or cheese board is provided with a magnetic portion adapted to retain a knife. A wooden bread board 10 (Fig. 1) has magnetized strips 16, 18 of synthetic plastic material let into its working surface 12 to retain the blade of a knife having its handle accommodated in a recess 14 in the board 10. Alternatively a wooden cheese tray 20 having a raised edge 22 is provided with a handle 24 provided with a knife retaining magnetic strip 38 and a knife handle receiving recess 30.
Patent GB-241815-A (GB)
Title: Improvements in matrix-distributing apparatus for typographical machines
IPC: B41B11/18
Filed: 1925-04-30
Abstract: 241,815. Imray, O. Y., (Intertype Corporation). April 30, 1925. Distributing matrices.-Relates to distributing. apparatus of the kind in which the matrices, after distribution according to character, are separated according to fount, and are delivered to different magazines. The matrices may be distributed according to character by a distributor-bar 1, Fig. 1, of known form, from which they fall into an entrance 3 leading to a fount distributor 8, by which they are delivered to different magazines 4, 5, 6, 7. The fountdistributor 8 is provided with partitions 11, Fig. 2, each of which carries an interrupted or permuted rail 17, which engages a groove m<4>, Figs. 6, 7, and 8, extending from end to end of each matrix, so that the matrices are suspended from, and slide down the rail. The upper wall of the groove m<4> in the matrices of all the founts except one is notched or cut away, so as to form permutations, which cause the matrices to be released from the rail 17 and to fall into the proper magazine. The grooves m<4> are of varying width, and the upper wall of the fountdistributor is formed with stepped shoulders 18 so that the matrices are arrested at the point at which they can fall from the rail 17. Specification 14582/90 is referred to.
Patent GB-219404-A (GB)
Title: Improvements in or relating to the cracking of oils
IPC: C10G9/42
Filed: 1923-04-26
Abstract: 219,404. V.L. Oil Processes, Ltd., Lucas, O. D., and Lomax, E. L. April 26,1923. Hydrocarbons, cracking. - In cracking hydrocarbon oils by passing the vapours through a heated cracking retort which may contain a catalyst, the oil is preheated under a pressure which maintains it in liquid form to such a temperature that on admission to the cracking retort complete vaporization takes place. The heating is effected by passage through a tube C in a furnace chamber a which receives hot gases from the furnace chamber a<1> of the cracking retort B; auxiliary burners may be provided in an intermediate chamber a<2>. The heated oil is admitted to the cracking retort B through a valve c<1> and spraying nozzle, together with uncondensed gases from the process heated by passage through a pipe d in the chamber a and admitted to the spraying nozzle by a valve d'. A small proportion of ammonia or hydrogen may be added to the gases. In treating gas oil, the oil is heated to about 400‹ C. under a pressure of 200- 300 lbs. per sq. in. and is then admitted to the cracking retort which is heated to about 550‹ C.
Patent GB-898285-A (GB)
Title: Improvements in or relating to machines for brushing and cleaning footwear
IPC: G07F17/22
Filed: 1961-03-29
Abstract: 898,285. Cleaning and polishing footwear. BREESE, D. B. March 29, 1961, No. 11426/61. Class 138 (1). [Also in Group XVIII] A coin-operated automatic machine for brushing and cleaning footwear comprises a freestanding frame having mounted upon its base portion a rotary cleaning element 24 and an electric motor 30 for driving it, a cowling 36 enclosing the cleaning element and motor, except for an opening 37 accessible by the user's footwear, and an enclosed coin-freed meter 41 which controls the supply of current to the motor and is mounted upon an upstanding part 13 of the frame. The frame consists of a complete tubular loop with forwardly-divergent parts 11 merging into convergent upstanding portions 12 which incline rearwardly and are connected by a horizontal top 13. A sub-frame 15 secured on the base portion of the frame serves as a mounting for the element 24 and motor 30, a spring- tensioned belt drive being arranged between the motor and element. The cowling 36 may be of aluminium and secured to the base portion of the frame by clips 39. The coin mechanism comprises a shoot 57, Fig. 5, in register with a coin slot 58 in the casing 40, and a spring-loaded arm 61 which normally obstructs the passage of a coin through the shoot and is then in position to maintain open a switch 63 in the circuit of the motor 30 and timing motor driving a disc 60; in its obstructing position, the arm 61 engages a notch 64 in the disc 60. A coin inserted in the shoot actuates the arm 61 to release the disc 60 and close the switch 63 so that both the cleaning element and disc 60 rotate. When the disc has completed one revolution, the arm 61 re-engages the notch 64 and the motor is de-energized.