baber/WOPTO huggingface dataset:
Patent GB-537672-A (GB)
Title: Improvements in or relating to the production of unsaturated aliphatic aldehydes
IPC: C07C45/74
Filed: 1940-04-09
Abstract: 537,672. Unsaturated aldehydes. DISTILLERS CO., Ltd., STANLEY, H. M., and MINKOFF, G. April 9, 1940, No. 6416. [Class 2 (iii)] Unsaturated aliphatic aldehydes are made by heating saturated aldehydes with water alone at 100-250‹ C. under sufficient pressure to maintain the liquid phase. The process is described with reference to the production of crotonaldehyde from acetaldehyde. Some alcohol is also produced, and may be returned to the reaction zone. Crotonaldehyde may be separated from the reaction product by distillation, or the acetaldehyde may be distilled off first, a solvent such as xylene being then used to extract the crotonaldehyde.
Patent GB-741474-A (GB)
Title: A method of manufacturing a bearing, and a bearing produced by said method
IPC: F16C33/20
Filed: 1952-03-12
Abstract: A synthetic resin composition suitable for application to a metallic support as a thin surface layer to form a bearing, comprises a highly polymeric material such as a synthetic resin or cellulose derivative having a mica filling and being formed with pores into which lubricant can penetrate.  The bearing is preferably made by coating the metallic support with the polymeric material containing a mica filling, the material being applied in the form of a highly viscous dispersion, e.g. in acetone, which on hardening forms a surface layer containing pores caused by splitting off the mica particles.  Pores may also be produced by beating the dispersion before application. The synthetic resin is preferably a phenol-aldehyde resin, a monohydric alcohol-treated phenol resin, which is soluble in benzene hydrocarbons, a urea-aldehyde resin, an ethoxylene resin or mixtures thereof or a phthalic acid-glycerol condensation product.  Minor amounts of thermoplastic resins such as vinyl ester resins, acrylic resins, cyclohexanone resins, coumarone resins or silicone resins, or cellulose derivatives, may be incorporated, and the composition may also contain fillers such as pulverized clay, chalk, lime powder, and steatite.
Patent GB-660242-A (GB)
Title: Improvements relating to metal or plastic window frames
IPC: E06B1/60
Filed: 1949-03-09
Abstract: 660,242. Window frames. CRITTALLLUXFER ALUMINIUM WINDOWS, Ltd., and BATES, R. E. May 30, 1950 [March 9, 1949], No. 6485/49. Class 20(iii) A window frame made of extruded metal, or plastic, sections carries on its outer peripheral surface a dovetailed recess for receiving a member to lock it, either to a similar frame, or to the fabric of a building, and formed along its inner peripheral surface are one or more glazing recesses 5. The frame formed in two parts, Fig. 2, comprises an outer part 1 having a dovetailed recess 2 to receive a locking member 9 for securing it to a supporting bar 10, and an inner dovetailed recess 3 which corresponds with an outer dovetailed recess 21 formed along the outer edge of an inner part 4. The parts 1, 4 may be joined by another locking member 9. Glazing recesses 5 are formed along the inner peripheral surface of the part 4. An arrangement, Fig. 7, includes fixed frame members 11, 14, the locking members being provided with weather bars 16.
Patent GB-976664-A (GB)
Title: Improvements in or relating to ion sources
Inventor: WOOD JAMES DAVID LONDON HEDLEY
IPC: H01J27/08
Filed: 1962-02-20
Abstract: 976,664. Ion sources. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Feb. 15, 1963 [Feb. 20, 1962], No. 6503/62. Heading H1D. An ion source comprises an emissive cathode 1, a cylindrical anode 5, an apertured extractor cathode 9 and a negative electrode 3 positioned about the emissive cathode 1 externally to the plasma formed in the ion source, and extending towards the extender cathode to apply an electric field to the gap between the cathode and the anode. This negative electrode 3 obviates the need for a magnetic field to form and concentrate the plasma. The tube described is a neutron generator containing a duteriumtritium mixture at 10-40 microns, a target 10 and gas dispenser 13. Specification 850,950 is referred to.
Patent GB-764795-A (GB)
Title: Improvements in or relating to umbrella manufacture
Inventor: ALEXANDER HARRY
IPC: A45B25/02
Filed: 1955-03-07
Abstract: 764,795. Umbrellas. JONES & CO. (UMBRELLAS), Ltd., W., and ALEXANDER, H. March 7, 1955, No. 6610/55. Class 134. The pivotal joint between the rib 1 and stretcher 4 is covered by a tube 5 of plastic material formed from a rectangular sheet the edges of which are seamed along two portions, leaving a central aperture 10 for the stretcher 4. Preferably the plastic material is polyvinyl chloride and the seaming is effected by radio-frequency electronic heating, although other methods such as heat-sealing, the use of adhesives or solvents for the plastic material, or crimping may be employed.
Patent GB-652172-A (GB)
Title: Improvements relating to spring snap catches or fastenings for cupboard or other doors
IPC: E05B15/04
Filed: 1948-03-03
Abstract: 652.172. Catches. EVERED & CO., Ltd., and WILSON, A. H. March 3, 1948, No. 6620. [Class 44] The housing for a mortise cupboard door catch comprises a parallel sided flattened tube-like part 9, Fig. 1, formed on and projecting rearwardly from the face of a fixing plate 9a. A plate 13 which is a sliding fit within the housing 9 is provided with lugs 13b between which a roller catch 15 is rotatably mounted, the lugs 13b working through an aperture 9b in the fixing plate 9a. A pair of screws 12 pass through apertures in the fixing plate 9a and plate 13 and are received in tapped hales in a bar 16. On rotating the screws, springs 17, 18, mounted thereon between opposite faces of plate 13 and the fixing plate 9a and bar 16, respectively, determine the extent of projection of the roller 15. The striking plate 11 fixed to the jamb' is formed with an inclined recess 11a, Fig. 2, merging into an arcuate recess 11b, both recesses being disposed between the upper and lower parts of its front face.
Patent GB-125736-A (GB)
Title: Protective Devices for Alternating Current Electric Systems.
Inventor: MCCOLL ALBERT EDWARD
IPC: H02H3/28
Filed: 1918-04-20
Abstract: 125,736. McColl, A. E. April 20, 1918. Addition to 119,937. Protective arrangements.-In an alternating-current protective system for feeders with biassed relays in conjunction with a circulating- current system employing duplicate circuits as described in the parent Specification, increased sensitiveness of the relays is obtained by placing one element of the relays in series with the duplicate circuit so that an increased portion of the fault current in conjunction with the load current is caused to flow through the relays. As shown in Fig. 1, for a single-phase feeder and using reverse-current relays, two current transformers S<1>, S<2> are located at one end of the feeder and two similar transformers S<3>, S<4> at, the other end, and they are interconnected by pilot wires and connected to the relays as shown. The relays are biassed by current spilling over from the duplicate circuits containing the relay elements A due to the resistance or reactance of the duplicate circuits being greater than that of the pilot wire circuits, or due to differences in the current-carrying capacities of the transformers S<1>, S<4> and S<2>, S<3>. The elements A in the duplicate circuit carry the whole current of the transformers S<1> or S<4> in addition to the fault component from the transformers S<2> or S' which flows also through the element B. On the occurrence of a fault, the increased current in the transformers at the source end compared with that at the supply end raises the potential of the pilot wire P<1>, and the spill-over current in the element B decreases and, after the bias has been overcome, reverses to operate the relay. The arrangement shown in Fig. 1 is applicable also to a three-phase circuit, three pilot wires being used. The circuit arrangements for a mechanically balanced relay are shown in Fig. 2, and this arrangement may be modified by using a single transformer at each end for both the pilot wire circuit and the duplicate circuit. The modification last referred to is shown in Fig. 3 as applied to a system using reverse-current relays, one element of which is connected in the duplicate circuit and the other to approximately equipotential points between the circuits, created by a resistance R<1>, R<2> connected in the pilot wire circuits.
Patent GB-954996-A (GB)
Title: Dustbag for a suction cleaner
IPC: A47L9/14
Filed: 1961-02-23
Abstract: 954,996. Air filter bags. VAN DER HEEM N.V. Feb. 23, 1961 [Feb. 29, 1960], No. 6752/61. Heading BIT. [Also in Division B8] A dust bag for a suction cleaner comprises a paper bag 1 closed at one end 4 and having an opening in the other end for fitting over a nozzle within the cleaner through which dust enters the bag, the latter having within it an insert 20 of cardboard having two sides 5, 6 disposed face to face and joined by a central part 7 having an opening 8 which corresponds with the opening in the bag 1, the portion of the latter having the closed end being folded in such a manner that it occupies a re-entrant position within the other portion of the bag, the sides of the bag being bent over edges of the sides 5, 6 of the insert 20 remote from the central part 7 of the insert. The end 4 of the bag 1 is closed by a glued fold. The opening in the end 9 of the bag corresponding with the opening 8 in the insert 20 is made after the insert 20 has been disposed within the bag and the end 9 has been closed by a glued fold. The dust bag is intended to be arranged in the cleaner with a part of the latter extending into the re-entrant portion of the bag.
Patent GB-1424519-A (GB)
Title: Construction units for use in the construction of fluid-  cushion-supported platforms
IPC: B60V1/00
Filed: 1972-08-18
Abstract: 1424519 Air cushion vehicles; dredgers MACKLEY-ACE Ltd 2 Aug 1973 [18 Aug 1972] 6755/75 Divided out of 1424518 Headings B7K B7A and B7S In a construction unit la provided with couplings in the form of staple members 4 for releasably connecting the unit to another unit, the unit is also provided with a section 21 of a flexible skirt 20 for containing cushion fluid beneath the unit. A fluid-cushion platform may be constructed of a number of the units and Fig. 6 shows a conventional dredger 40 converted into an air-cushion-supported dredger.
Patent GB-321623-A (GB)
Title: Improved gate or door operating mechanism
IPC: E05F13/04
Filed: 1929-03-02
Abstract: 321,623. Darby, J. H. March 2, 1929. Operating doors and gates by treadles.-A gate slidable upon a rail disposed transversely of the road or thoroughfare along which a vehicle is to pass is adapted to be displaced by a ramp which is depressed by the vehicle. As shown a gate in sections 1, 2 is mounted upon rollers 4 adapted to slide along rails 5, 6 pivotally mounted at 8. The rails are joined together through links 18 and are supported at one end by sets of levers 15, 16 which are pivotally connected to ramps 10, 11 and 9, 12. The ramps are counterweighted at 14, and a spring 17 keeps the rails normally in the position shown. An approaching vehicle depresses the ramps at one side of the gate, tilting the levers and raising the inner ends of the rails, the gate sections then rolling open until they abut against the stops 19, 20. When the vehicle has passed through the gate opening the weights 14 and spring 17 restore the ramps, levers, and rails, and the gate sections move back into the closed position. A modification is described which provides against the gate being operated by an animal walking upon the ramps. The application to garage doors is referred to.
Patent GB-916073-A (GB)
Title: Moulded containers
Inventor: DITMAR WILLEM PIETER ADRIAAN
IPC: B29C49/00
Filed: 1959-02-27
Abstract: 916,073. Moulding hollow articles. UNILEVER Ltd. Feb. 22, 1960 [Feb. 27, 1959], No. 6884/59. Class 87(2). [Also in Group XVII]. A bottle is moulded from a hot sheet 1 of thermoplastic material by bending it to U-shape enclosing the bent sheet in a mould 2, 3 and blowing it to the shape of the mould by a nozzle 6 the neck-part of the bottle being formed from the bottom of the U so that it is formed without a seam. To facilitate removal of the bottle, each of the mould halves may have parts 37, 38 to which they are releasably connected by pins 39. Protrusions on the bottle may be formed by recesses 34, 36 in the mould. The neck may be formed with a screwthread.
Patent GB-1088273-A (GB)
Title: Ventilating apparatus
IPC: F24F13/12
Filed: 1963-02-20
Abstract: 1,088,273. Ventilation. R. WINNETT. May 20, 1964 [Feb. 20, 1963], No. 6917/63. Heading F4V. [Also in Division F2] A conduit for supplying air to or withdrawing air from an enclosure comprises a number of elements 12 which are divided into open and blanked off passages and provided with perforations in such manner that air passes through the perforations at substantially constant rates throughout the length of the conduit. As illustrated a supply conduit is made up of three elements 12 connected by plain elements 13. Each element 12 has three passages which are blanked off so that one third of the supplied air passes through the perforations 14 in each element. The elements may be selected to pass round picture rails &o. and may be formed to provide a false coving, picture rail, skirting board or frieze. As shown in Fig. 1, conduits 10 and 11 constructed as above are connected with chambers 2 and 3 which contain fans and are connected by duets 8 and 9 to the outside air through a window or wall. A hit and miss damper 18 covers a perforated well 17 between the chambers and butterfly valves 19 and 20 are provided so that all or part of the air from the enclosure may be recirculated. The chambers 2 and 3 may be located in an opening in a window or wall and the inlet and outlet may take the form of adjustable louvre assemblies. The above described) apparatus may be used for exchanging air between rooms.
Patent GB-412701-A (GB)
Title: Improvements in or relating to greyhound racing apparatus
IPC: A63K1/02
Filed: 1933-03-08
Abstract: 412,701. Dog-racing apparatus. MACWHIRTER, A. C., 16, Cyncoed Road, and ELLIS, F. A., Wentwood, Cyncoed Road, Cardiff. March 8, 1933, No. 6972. [Class 132 (i).] In dog-racing apparatus of the trackless type in which the hare is attached to an endless cable passing over pulleys which are engaged by a second endless cable driven by a prime mover, the necessary tension is automatically retained on the driving cable. As shown, the endless cable 1 to which is attached a lure 2 passes at one section of the track over pulleys 3 provided with two grooves, the endless cable 1 engaging one set of grooves, and an endless cable 4 driven by a motor 6 engaging the other set of grooves, and passes at the main part of the track over pulleys 5 provided only with one groove. The cable 4 is tensioned by passing over a pulley 10 mounted on a lever 7 provided with a weight 9. Stretch in the cable 4 on application of the brake is taken up by the weight 14 suspended from the pulley 15 suspended on the cable 4. The brakes may act on brake drums on the pulley 13. The pulleys may be mounted on ball bearings.
Patent GB-286695-A (GB)
IPC: A61B5/023
Filed: 1928-03-06
Abstract: 286,695. Baum Co., Inc., W. A., (Assignees of Baum, W. A.). March 9, 1927, [Convention date]. Pressure gauges, indicating means for; with damping arrangements.- Apparatus for measuring fluid pressures, particularly the pressure of the blood comprises a glass tube 17, Fig. 9, detachably mounted upon a base 8 and connected with a mercury reservoir 14 itself connected with a pneumatic cuff or other source of fluid pressure. The tube is inserted at its lower end into a socket 18 of a fitting secured by a plate 10 to the plate 8 and having a socket 18<1> into which the reservoir 14 is screwed. A channel in the fitting 10 provides communication between the sockets. At its upper end the tube engages a slide 15 turned over at 19 and slidable on the plate 8 against the action of a spring 16. A celluloid or like scale 20 of convex surface having a central recess to receive the tube 17 is resiliently held between flanges 21 on the plate 8 and is used in conjunction with graduations on the tube. The plate 8 is secured to the underside of the lid 6 of a box 5 into which the whole appliance is shut when not in use. The tube 17 is secured in a fluid tight but readily detachable manner at each end by a socket such as 32, Fig. 2, screwed into the portion 19 of the slide 15 and provided with an annular packing ring 41a of cork or the like. The ends of the tube are reduced as at 38, and provided with buffer rings 40, preferably of celluloid shrunk on to the tube. Above the socket 32 a disc 36 of kid or the like, secured by a screw cap 35 communicating with the atmosphere acts as a damping device against the motion of the mercury in the tube. Alternatively the resilient slide 15 may be replaced by a fixed extension of the plate 8, the socket 32 being provided with a milled portion enabling it to be screwed down to force the tube 17 tightly against the packing members 41a. During transport the mercury is retained in the reservoir 14, Fig. 9, by an impervious disc closing the lower end of the tube 17, the upper end of the reservoir being closed by a cork 42. Disturbance of the instrument by movement of the patient or of the tube connecting the reservoir 14 with the pneumatic cuff is avoided by securing the tube by a clip d. The tubes 17 are made nf standard size and are calibrated by the use of a standard reservoir thus rendering them interchangeable without further calibration. Reference has been directed by the Comptroller to Specification 14860/07.
Patent GB-1144406-A (GB)
Title: Vehicle speed timing apparatus
IPC: G01P3/66
Filed: 1967-02-14
Abstract: 1,144,406. Vehicle speed timing apparatus. F. V. GEBERT. 14 Feb., 1967 [18 Feb., 19661, No. 7092/67. Heading G4H. Vehicle speed timing apparatus includes two electrical detectors each comprising a cable which transmits an electric pulse generated by the piezo electric effect when a vehicle wheel passes over it, the pulse from the first cable enabling a gate to pass signals from a crystal oscillator to a cascade counter circuit, the other detector closing the gate to stop the count. In the embodiment described the pulse generated on lead 4 (Fig. 4) when a vehicle wheel passes over the first cable is applied to a mechanical safety gate 19 after amplification and shaping, the output from the gate 19 on lead 27 then being applied to a further gate 28 which enables only one pulse to pass through to an electronic gate 30 through which clock pulses from a crystal oscillator 34 then pass to a cascade counter 33. When the wheel passes over the second cable the electric pulse generated on lead 5 is similarly applied to the mechanical safety gate 19 to generate a pulse on lead 35 to close the gate 30. The count in the counter 33 then represents the length of time taken for the vehicle to travel between the two cables. Ammeters 40-43 are connected to the counter boards and display the number of counted pulses. To test the accuracy of the count a test pulse generator 54 supplies test pulses of known frequency via lines 52, 53 to the gate 19. By connecting terminals 25 and 26 and 21 and 22 these pulses similarly enable and close respectively gate 30 so that the counter 33 accumulates pulses from the oscillator 34 between two consecutive pulses from the test pulse generator 54. The number of vehicles passing over the cables may be found by accumulating the pulses on lead 5 in a further counter 56.
Patent GB-600192-A (GB)
Title: Improvements to mechanically operated washing machines for clothes
IPC: D06F17/00
Filed: 1944-04-18
Abstract: 600,192. Washing-machines. MINTON, D. G., WHINHAM, W. S., and WHINHAM, W. N. April 18, 1944, No. 7152. [Class 138(ii)] The clothes container. a of a washing machine is sealed by a cover f, and communicates near its base with a liquid container b; air is alternately supplied to and withdrawn from the clothes container by means of a fan h and a control valve i, so that liquid flows to and fro between the containers and through the clothes, which are preferably confined beneath a perforated plate m. The construction shown comprises a single vessel divided by a partition c, terminating short of its base, to form the containers a and b. Air under pressure is delivered intermittently from the valve i to a point near the base of the container a by means of a pipe j. Suction pulses, alternating with the pressure pulses, are applied through a direct opening n between the upper part of the container a and a suction port in the valve casing. A motor k drives the fan h directly, and the valve i through a worm reduction gear l.
Patent GB-498577-A (GB)
Title: Improved circuit arrangement comprising a discharge tube
IPC: H01J43/02
Filed: 1938-03-07
Abstract: 498,577. Valve circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. March 7, 1938, No. 7155. Convention date, March 10, 1937. [Class 40 (v)] In a valve having an auxiliary secondary-emitting cathode 5, the control grid 3 is biassed by a resistance 12 which is in the circuit of both the main cathode 2 and the auxiliary cathode, the latter being connected to a point on a potentiometer 10, 11 such that the part 10 is large relatively to the part 11. The control grid 3 and a screen grid 4 may be connected to a second potentiometer 9 as shown.