baber/WOPTO huggingface dataset:
Patent GB-447265-A (GB)
Title: Improvements in or relating to alloy steels
IPC: C22C38/24
Filed: 1934-10-12
Abstract: An alloy which is resistant to oxidation at high temperatures and is completely or almost completely non-hardenable consists of iron, 3,5-20 per cent of chromium, less than 0,1 per cent of carbon, and less than 1 per cent of vanadium, the vanadium content being at least 10 times the carbon content.  The iron may contain the usual impurities, e.g. 0,2-0,26 per cent of silicon and 0,37-0,47 per cent of manganese.  The chromium content is preferably between 3,4 and 7,5 per cent.  Specific examples of the alloys are given and also examples of alloys containing iron, chromium and carbon and iron, chromium, carbon, and vanadium which do not fall within the scope of the invention.  The alloys may, for example, be used for making sheets and tubes for use at elevated temperatures and for welding rods.  The Specification as open to inspection under Sect. 91 refers to alloys of iron, carbon, chromium, and vanadium in which the ratio of the vanadium content to the carbon content is between 5 to 1 and 10 to 1 and contains specific examples of alloys containing iron, carbon, and chromium, and iron, carbon, chromium, and vanadium, which do not appear in the Specification as accepted.
Patent GB-1181025-A (GB)
Title: A Protective device for Dew-Claws
Inventor: BOHMANN OTTO ALWIN LUDWIG
IPC: A01K13/00
Filed: 1968-06-19
Abstract: 1,181,025. Protective device for dew claws. RUBBERFABRIEK VREDESTEIN N.V. 19 June, 1968, No. 29283/68. Heading A5R. [Also in Division A1] A protective device for a cow's dew claws comprises a cuff I of flexible, non-moistureabsorbent natural rubber, synthetic material, &c., formed with at least one bulge 4 for accommodating the dew claws, and fastening members 2, 3.
Patent GB-955007-A (GB)
Title: Container closures
Inventor: CRANE ALFRED JOHN
IPC: B65D39/08
Filed: 1961-08-14
Abstract: 955,007. Screw plug stoppers. ARMSTRONG CORK CO. Aug. 14, 1962 [Aug. 14, 1961], No. 29330/61. Heading B8T. A container closure consists of a hollow shank 1 heat sealable to a cap member 6, which has lugs engaging in slots 3 in the shank head 2 to prevent relative rotation. The cap may be of polypropylene and is sealed to the shank by applying a heating element 9. The shank has diametral reinforcing ribs 5 and a lip 4 which in conjunction with a lip 8 on the cap forms an annular ridge after heat sealing to prevent undue spreading of a rubber sealing ring normally used with the closure.
Patent GB-152649-A (GB)
Title: Improvements in mixing apparatus also suitable for preparing solutions
IPC: B01F5/02
Filed: 1920-10-18
Abstract: 152,649. Pfisterer, K. Oct. 18, 1919, [Convention date]. Jet apparatus.-An apparatus for producing an intimate mixture of a solid and fluid, or for producing solutions, or e.g. saturated clear lime water for the purification of feed water for boilers, consists of a jet-pump placed in a vertical mixing tube and operated by the solvent, the liquid from the pump passing through the substance to be dissolved into the mixing tube, any solid settling in the mixing tube being drawn into the pump and again circulated. The apparatus consists of a cylindrical vessel l having a conical bottom at the centre of which a jet-pump b is fixed. A mixing-tube k surrounding the pump has a conical enlargement i at its upper end constituting a chamber enclosing a sieve h which contains the substance to be dissolved. The nozzle b of the pump is surrounded by a perforated casing c and a second nozzle o placed over the nozzle b leads into a tube p coaxial with the tube k. The upper end f of the tube p opens at the sieve h and the lower edge e, surrounding the nozzle o, is perforated. In use, liquid at a pressure slightly above atmosphere enters the tube a and on leaving the upper end f of the tube p is distributed over and passes through the material to the sieve. The solution then passes down the mixing-tube k, and any solid passing down with the solution is drawn through the perforations e and is carried back to the sieve by means of the jet. The clear solution passes through the casing c and a filter n into the chamber l and flows off through the outflow m.
Patent GB-881828-A (GB)
Title: Apparatus for surfacing sheet material
IPC: B24B41/053
Filed: 1960-08-25
Abstract: 881,828. Grinding and polishing sheets. PITTSBURGH PLATE GLASS CO. Aug. 25, 1960 [Aug. 25, 1959], No. 29366/60. Class 60. Apparatus for surfacing sheet material, e.g. plate glass, comprises a spider 10 rotatable about a fixed axis, a plurality of surfacing runners 24 which are connected to the spider for rotation therewith and for free rotation about spindles 26, and additional, fixed runners 28 attached to the spider 10, at least one of the fixed runners being positioned between an adjacent pair of rotatable runners. The polishing felts 32 of the runners 24, 28 are cemented to resilient pads 30, such as sponge rubber, which are themselves cemented to the runners. The apparatus may be used for single-surface or "twin" polishing units, the lower fixed runners 28 providing a support for the glass between pinch rolls 34.
Patent GB-364123-A (GB)
Title: Improvements in or relating to furnaces
IPC: F27D1/02
Filed: 1930-10-01
Abstract: 364,123. Furnace roofs. GAS LIGHT & COKE CO., ADAM, W. G., and GRAY, P., 84, Horseferry Road, London. Oct. 1, 1930, No. 29410. [Classes 51 (i) and 51 (ii).] In a furnace provided with an arched roof or with superposed arched roofs in one or more spans means are provided at the outer ends of each roof in conjunction with the furnace walls or between the adjacent spans of each roof to form longitudinal passages for the admission of air to the space below the roof. As applied to a furnace provided with superposed roofs each in two spans, as shown in Fig. 3, the invention comprises springer blocks 4, 5, 17, 18 at the outer ends of the roofs or arches 1, 36, 16, 37 suspended from the wall plates 6, 7 with which they form in conjunction with the walls 2, 3 longitudinal passages 8, 9, 19, 20 supplied with air by pipes 10, 11, 19<1>, 20<1>. The air is discharged from these passages below the arches through passages between the lower ends of the springers and passages 14, 15, 23, 24 in the walls. Similar springer blocks 38 .. 41 are provided at the junction of the roof spans. The upper springer blocks 38, 39 are secured by means of their vertical portions 42, Fig. 6, to the outer surfaces of vertical plates 32, 33 suspended from an overhead beam while the lower springer blocks 40, 41 are secured to the inner surfaces of the vertical plates. The lower ends of the springer blocks are provided with spaced ribs 46 and with dovetail recesses to receive bricks 45. Air is supplied by a pipe 67 to the space between the plates 32, 33, which are spaced apart by angle irons 49 separated bv gaps for the passage of air, and flows through perforations 53 into the longitudinal channels between the springer blocks 38, 39 and plates 32, 33 and thence through passages between the bricks 45 and passages 57, 58 in the walls to the space beneath the upper roof spans. The air also flows through openings 61 between the lower springer blocks into the longitudinal channel 62 and thence between the bricks 45 to the space beneath the lower roof spans.
Patent GB-1419009-A (GB)
Title: Vibratory control systems
IPC: B06B1/18
Filed: 1973-06-21
Abstract: 1419009 Abrading SOC NOUVELLE DE ROULEMENTS 21 June 1973 [17 July 1972 18 April 1973] 29427/73 Heading B3D [Also in Division F1] Apparatus for vibrating a member 11, Fig. 1, comprises a pulse generator 1, compressed by a cam 8 driven by a motor 9, connected by a line 2 to a pulse receiver 3 which is attached to the resiliently supported member 11. As described members 1 and 3 are bellows and the spring 12 is adjustable. Fig. 2 shows a polishing stone 14 mounted on a support 11 which is suspended by blades 15, 15a for rectilinear movement. Fig. 3 (not shown), illustrates an embodiment in which a store 14 is vibrated in a circular path. Fig. 4 shows an embodiment in which the mean position O of the member 11 is adjusted by a bellows 21 and a screw 25.
Patent GB-445361-A (GB)
Title: A new or improved bolt
IPC: E05C1/04
Filed: 1934-10-15
Abstract: 445,361. Sliding bolts. SPEGELSTEIN, S., 84, Wallis Road, Hackney Wick, and COOK, C. H., 196, St. Albans Avenue, Bedford Park, both in London. Oct. 15, 1934, No. 29494. [Class 44] In a sliding-bolt fastening a plate spring is disposed so as to snap behind the tail of the bolt to retain it in shot position, but yield to pressure in withdrawing the bolt. As shown, a flat bolt 6 is slidable in a trough-like casing 1 having inturned side flanges 3 serving to retain the wider portion of a plate-spring 4 which is preferably transversely bowed when in situ, Fig. 2, and serves to guide the bolt. A tongue portion of the spring extends towards the inner end of the bolt and has a stampedup projection 5 engaging behind the bolt tail when shot, Fig. 3. The bolt is operated by a knob 7 with shank 12 riveted or screwed into the bolt and working along a slot 8 in the casing 1, which is fixed by screws passed through apertures 9, one of the screws also passing through a slot 6<1> in the bolt and an aperture 10 in the spring. Modifications are described in which two projections 5 are provided, spaced apart transversely to allow clearance for the inner riveted end of shank 12 and the wider portion of the spring has longitudinal reinforcing ribs. In one of these modifications the bolt end is bent up and provided with a bolt pin 17, Fig. 6.
Patent GB-746279-A (GB)
Title: Improvements in or relating to apparatus for feeding fuel to furnace grates
IPC: F23K3/16
Filed: 1952-11-21
Abstract: 746,279. Pneumatic conveyers. INTERNATIONAL COMBUSTION (HOLDINGS), Ltd., and WRAY, J. W. Nov. 16, 1953 3 [Nov. 21, 1952], No. 29509/52. Class 78 (1). Means for feeding fuel to a furnace grate comprises a tube 1 supplied with fuel by a feeder 8 and with air by a nozzle 7 and connected to an air-recirculating duct 5. A damper 11 controls the volume of air recirculated. Hot gases are withdrawn from the furnace through a duct 9 connected to the duct 5.
Patent GB-209718-A (GB)
IPC: B23B27/02
Filed: 1923-11-23
Abstract: 209,718. Klopstock, H. Jan. 15, 1923, [Convention date]. Tools. - A tool for turning &c. is provided on the top face with a depressed portion f<1> bounded by fiat strips f adjacent the cutting edges s<1>, s<2>.
Patent GB-642432-A (GB)
Title: Improvements in brakes
IPC: F16D65/12
Filed: 1947-11-07
Abstract: 642,432. Brake discs. DUNLOP RUBBER CO., Ltd., and BUTLER, H. J. Nov. 7, 1947, No. 29660. [Class 103 (i)] In a disc brake, particularly for aircraft, the metal discs comprise a plurality of annular laminations disposed one within the other and having coaxial adjacent surfaces extending throughout the thickness of the disc. As shown in Fig. 1, there are inner, middle and outer lamina 1, 2 and 3 respectively each consisting of twelve equal segments, the junctions of the segments of the middle lamina being staggered with respect to those of the inner and outer laminµ, and the three being held together by rivets 5. As shown in Fig. 3, the disc takes the form of a tight spiral metal strip 8 secured between inner and outer rings 7 and 9.
Patent GB-1040873-A (GB)
Title: Improvements relating to folding beds
Inventor: TRANTER ARTHUR
IPC: A47C19/12
Filed: 1964-07-23
Abstract: 1,040,873. Folding beds. VONO Ltd. June 25, 1965 [July 23, 1964], No. 29705/64. Heading A4J. A folding bed has a mattress frame comprising two main sections 10, 12 pivotally connected at their inner ends to a centre section 11 in such a manner that in the folded condition of the bed, the two main sections 10, 12 lie parallel to one another in an upright position, Fig. 2 (not shown). Supporting legs 14, 15 are pivotally mounted adjacent the inner ends of main sections 10, 12 respectively. Linkage 19 pivotally connects legs 14, 15 to the centre section 11. Integral extensions 23 of linkage 19 are provided with wheels 24 which support the bed in the folded condition.
Patent GB-1506310-A (GB)
Title: Paper reel stand
IPC: B65H19/12
Filed: 1976-07-16
Abstract: 1506310 Web roll stands REED PAPER & PACKAGING Ltd 16 July 1976 [16 July 1975] 29715/76 Heading B8R A web roll stand comprises a frame having jacks driven jointly to raise a web roll 31, Fig. 1, and a counter-poise frame having a pair of arms 52 mounted pivotally for movement towards and away from the periphery of the web roll 31, the arms supporting means for registering the web roll transversely and means for tensioning the web and preventing the roll from over-running. The jacks comprise screws 21, Fig. 2, provided at their upper extremities with sprockets 37 engaging chains 42 which are connected to a drive-shaft 44. The screws also support hooks 29 carrying the ends of web roll shaft 30. The counter-poise frame carries a shaft 55 having a pair of freely rotatable rollers 80 and transverse registering brackets 84, mounted axially adjustably and supporting either braking pads 87 used for heavy rolls or rollers 86 used for braking light-weight rolls.
Patent GB-520164-A (GB)
Title: Improvements in or relating to the alcoholysis of polymerisable esters
Inventor: KAUTTER CARL THEODOR
IPC: C07C69/54
Filed: 1938-10-13
Abstract: 520,164. Esters of unsaturated acids. ROHM & HAAS AKT.-GES. Oct. 13, 1938, No. 29716. Convention date, Oct. 13, 1937. [Class 2 (iii)] Esters of unsaturated polymerizable acids are manufactured by reacting esters from such acids and alcohols of relatively' low molecular weight with alcohols of relatively high molecular weight, or with phenols, and continuously removing from the reaction zone the lower alcohols set free and the esters of higher alcohols or phenols formed. Preferably the reacting substances are so selected that the boiling points of the higher ester, the lower alcohol and the reaction mixture differ sufficiently for their separation to be effected by distillation. The reaction may be carried out in a tower in which the temperature gradient is such that essentially only the substances formed can leave the tower, the readily volatile substance leaving at the top as vapour, the difficulty volatile substances leaving the foot as liquid, whilst mixtures of the starting materials are found in the centre parts of the tower. The reaction may be carried out in the presence of acid, alkaline or alkalinereacting catalysts, e.g., sulphuric or phosphoric acid, aromatic sulphonic acids such as ptoluenesulphonic acid, or alcohols, and, if desired, with the addition of solvents, which in some cases may form an azeotropic mixture with the lower alcohol formed in the reaction or may act as boiling promoters for the higher ester. Suitable starting materials are, on the one hand, the lower esters, e.g., methyl and ethyl esters, of acrylic acid, its homologues, e.g., methacrylic acid, or it substitution products, e.g., α-chloracrylic acid, and, on the other hand, saturated or unsaturated aliphatic, alicyclic, aromatic or heterocyclic alcohols, polyhydric alcohols, e.g., glycol, alcohols of mixed functions such as ether alcohols or halogen alcohols, or phenols. In an example, n-butanol and methyl methacrylate are reacted in a tower in the presence of sulphuric acid and of sulphur as a polymerization retardant, and advantageously in the presence of a boiling liquid, e.g., a lubricating oil of high boiling point. A mixture of methanol and methyl methacrylate leaves the top of the tower, and crude n-butyl methacrylate is withdrawn at the bottom. The n-butanol may be replaced by n-hexyl alcohol and the sulphuric acid by p-toluenesulphonic acid.
Patent GB-1360061-A (GB)
Title: Pressure control servovalve
IPC: F15B13/04
Filed: 1971-06-24
Abstract: 1360061 Servo-valve SOC D'OPTIQUE PRECISION ELECTRONIQUE ET MECANIQUE 24 June 1971 [24 July 1970] 29752/71 Heading G3P A valve, which may be employed in an aircraft brake control circuit, comprises a constant flow input port 2, a work port 3, and a vent port 4, flow between the ports being determined by the degree of opening of a leakage path which leads to the vent port and which is controlled by a mechanical, pneumatic or electro-mechanical force F. In the neutral state of the valve, as shown, the leakage path is closed and so flow takes place solely between ports 2 and 3. Upon a force F being applied to a plate 5 carried by a spring tube 6, the plate tilts in opposition to the bias imposed by the spring tube and so tilts a stem 7. The stem displaces a piston 12 to the left, as seen in the drawing, and so opens the leakage path 31, 32, 24, 23, 25, 26, 14 and 8, the chamber 8 being in direct communication with the vent port 4. Removal of the applied force results in the valve returning to its neutral state. Fluid-force effects on stem 7 are nullified by the action of piston members 12, 10 and 13, 11 whose piston ends are in constant communication with the work port 3. In modifications, Figs. 2-3 (not shown), piston member 13, 11 is formed as a landed spool which co-operates with three ports to give a quicker venting of, or alternatively a higher supply to the work port 3. Furthermore, the leakage path may be constituted in part by a nozzle, Fig.4 (not shown), and associated flapper as opposed to the slide member 12 which cooperates with ports 26.
Patent GB-745826-A (GB)
Title: Improvements in or relating to rotary electrical apparatus in which a permanent magnet is included in the magnetic circuit
IPC: C04B35/26
Filed: 1952-11-25
Abstract: 745,826. Magnetic structures; dynamoelectric machines. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Nov. 25, 1952 [Nov. 28, 1951], No. 29792/52. Classes 35 and 38 (2) Electrical apparatus such as a dynamoelectric machine comprises a winding in a gap between two parts including or consisting of permanent magnetic material having a specific resistance of at least 1000 ohm-cm., and of such nature that it is not easily demagnetized. Suitable materials are the polyoxides of iron and at least one of the metals Ba, Sr, Pb and, if required, Ca, such as from the subject-matter of Specification 708,127. The material may be magnetized at higher than air temperatures as described and claimed in Specification 719,004. The machine of Fig. 1 comprises a polarized part 1 of this material which has relative rotation to a polarized part 2 of the material in which part is embedded a coil 3 in which an E.M.F. is induced by the change of flux produced by the alternate assisting and opposing action of the poles. In a modification, a coil moves relative to the magnetic parts in a circular air-gap between those parts. The gap not occupied by the coil may be filled with magnetically soft material which may be of the kind known as Ferroxcube, having a high specific resistance, Fig. 3 (not shown). Fig. 4 shows a machine in which two coils 11, 12 rotate about an axis 13 in an axial field between polarized permanent magnet segments 14, 15, 16, 17, magnetically soft discs 21, 22 completing the magnetic circuit. The use of magnetic material of high specific resistance makes the machines useful for high frequencies.
Patent GB-1455044-A (GB)
Title: Mehtod of producing an electron radiogram
IPC: G03G15/054
Filed: 1974-07-05
Abstract: 1455044 Coated plastics sheet XONICS INC 5 July 1974 29824/74 Heading B2E [Also in Divisions G2 and G3]  A receptor sheet used in producing electron radiograms comprises a dielectric plastics core layer transparent to light, e.g. a polyester such as polycarbonate, and arranged between a dielectric plastics image carrier layer, e.g. polyethylene, polystyrene, polyvinylchloride/polyvinyl acetate copolymer or polyester adhesive and an antistatic conducting layer, e.g. a film of an antistatic substance, an antistatic polyethylene sheet, carbon impregnated plastics such as polyethylene or a conducting paper. The conducting and image carrier layers may be applied to the core layer as liquid coatings. The layers may be laminated together, e.g. with the use of transparent bonding adhesive.
Patent GB-756290-A (GB)
Title: Improvements in or relating to electric motor control circuits
IPC: H02P3/12
Filed: 1954-10-15
Abstract: 756,290. Control of D.C. motors. PHILIPS ELECTRICAL INDUSTRIES, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Oct. 15, 1954, No. 29826/54. Class 38(3) The armature 3 of a D.C. motor is shunted by a voltage divider 4, 5. and is supplied through a rectifier 1 having a phase shifter 2 and a source 6 of variable control voltage in its grid circuit. The source 6 is also connected in the control cir cuit of a valve 7 wherein its voltage opposes that derived from a portion of the resistor .5, the source 6 normally having the higher voltage so that the valve is cut off. To reduce the speed of the motor, the voltage of source 6 is reduced, but the voltage at resistor 5 decreases at a slower rate due to the momentum of the armature 3 and its development of back-electromotive force. This causes the valve 7 to strike, energize relay coil 8, and close contact 9, so that a braking resistor 10 is connected across the armature of the motor for increasing the rate of deceleration until the voltages derived from the elements 5 and 6 neutralize each other. The braking action may be instituted at a predetermined difference between the actual motor speed and that corresponding to the value set by the source 6 by adjusting the tapping 11 of the resistor 5.
Patent GB-280545-A (GB)
IPC: F25B31/02
Filed: 1927-11-08
Abstract: 280,545. Bischof, B., and Haccius, C. Nov. 15, 1926, [Convention date]. Cam - actuated, revolving - cylinder pumps; stroke, varying.-In a revolving-cylinder engine, pump, or compressor, the cylinder 6 extends crosswise of the axis of rotation, and is arranged in an enlargement 5 of the shaft. The piston 7 has a rod 7<1> which is heavier than the piston, and carries a roller which abuts an eccentricallyarranged ring 9 mounted in roller bearings, and which may be yieldable. In the compressor shown, the stator 2 of an electro-motor is arranged in a casing 1, and the rotor on the shaft 3. A rotatable sleeve 10 with a port 11 is arranged around the port 5. The casing contains inlet and outlet passages 12, 13. The bearing 14 of the shaft 3 and the sleeve are forced towards the passage 13 by a spring 15 to ensure a tight joint at the point of delivery. The piston may be guided by a groove engaging a projection thereon. In a modification the eccentric 9 can be transversely displaced against the resistance of springs. A number of superposed, staggered cylinders may be provided.
Patent GB-703060-A (GB)
Title: Luggage holder for motor vehicles
IPC: B60R9/06
Filed: 1952-11-26
Abstract: 703,060. Luggage carriers for vehicles. ANDERSSON, B. A. Nov, 26, 1952, No. 29989/52. Classes 103(2) and 108(1) A luggage holder for motor vehicles comprises two side supports in the form of lazy-tongs and consisting of two series of bars 1, 2, and transverse rods 7, the ends 8 of which are connected by pivot pins 9 to lugs. 6 rigidly connected with the bars 1, the arrangement being such that in the .collapsed position of the holder, but not in the extended position, the side supports may be swung inwardly over the transverse rods 7 and the holder cannot be extended from its collapsed position while the side supports are over the transverse rods. An outermost rod 7a is mounted in bearings 11 secured to the vehicle, from which project two arms 12 with bent-up portions 13 which embrace the transverse rod 7b when the luggage holder is in the collapsed position. The holder in the extended position may be supported by a device comprising two triangular shaped tubular members 16, 17 hooked to studs 14 on rods 1 and at the other end forming a mounting for the ;fork 19 of a supporting wheel 20. The members 16, 17 are hingedly' connected together by means of a sleeve 21 so that after return from the luggage holder they may be folded towards each other. Alternatively, the luggage holder is supported by the arms 12 which are of sufficient length that the bent portions 13 can engage the rod next to the outermost rod 7a.