baber/WOPTO huggingface dataset:
Patent GB-1174684-A (GB)
Title: Improvements in or relating to Pulsating Combustion Type Burners
IPC: F23C15/00
Filed: 1967-02-17
Abstract: 1,174,684. Pulsating type combustion chambers JUNKERS & CO. G.m.b.H. Feb.17, 1967 [Feb.17, 1966], No.7658/67. Heading F1L. A water heater comprises pulsating type combustion chambers 10, 11 receiving fuel through pipes 24, 28, 29 and an intermediate chamber 25. A second chamber 26 is connected to chamber 25 through a pipe 31 such that the combined chambers have a natural resonant frequency substantially equal to the combustion frequency, thus improving starting of the unit. The chambers 25, 26 are acoustically non-absorbing. A Venturi 32 in pipe 31 prevents pressure fluctuations being propagated down pipe 24. An air intake silencer 20 surrounds at least part of the unit and communicates with atmosphere through a pipe 21. The air intake pipes 22, 23 to the combustion chambers communicate with the intake silencer interior 201 through an inlet 35 adjacent an opening 33 in the wall 34 of the fuel chamber 25. The opening 33 is formed as a plain orifice, Borda outlet, or spiral housing so that gas can escape or air enter to balance mixture fluctuations during starting. The combustion gases exhaust through resonant tubes 12, 13 to a silencer 14. The water heating is effected in heat exchanges 16, 17 surrounding the combustion chambers. In modifications, only one or more than two combustion chambers are provided. The fuel may be town gas or a vaporized liquid.
Patent GB-540860-A (GB)
Title: An improved grass-box for lawnmowers
IPC: A01D34/42
Filed: 1940-04-30
Abstract: 540,860. Lawn mowers. J. P. ENGINEERING CO., Ltd., and BOOTON, C. F. April 30, 1940, No. 7690. [Class 6 (ii)] A grass box for a lawn mower comprises a sheet metal base 10 curved upwards at 10<SP>1</SP> and having lugs 13 for detachable mounting on the lawn mower. A number of metal or wood hoops 16a .. 16d are pivoted 'at 14 and are covered by a fabric hood 11 which may be extended as shown, or collapsed on to the base 10. Hinged stays 17 are provided to retain the hood in open position. Specifications 13246/90 and 16442/99, [both in Class 6] and U.S.A. Specifications 1,999,102 and 1,826,605 are referred to.
Patent GB-1024147-A (GB)
Title: Wire garment hangers
IPC: A47G25/24
Filed: 1965-02-23
Abstract: 1,024,147. Garment hangers. A. GRAHAM. Feb. 23, 1965, No. 7786/65. Heading A4U. A wire garment hanger of triangular shape has a hook member projecting outwardly from the apex of the triangle and a second hook member projecting outwardly from the base of the triangle, which base forms a trouser bar, the hook member being normal to the base, along a line bisecting the triangle apex, to be diametrically opposed to the shank of the first hook, the hanger being thus capable of use either way up.
Patent GB-984122-A (GB)
Title: Improvements in electromagnetic relays
IPC: H01H51/01
Filed: 1962-02-28
Abstract: 984,122. Electrically released switches; protective arrangements; protective arrangements for consuming apparatus. GENERAL ELECTRIC CO. Feb. 28, 1962 [March 6, 1961], No. 7798/62. Headings H2B, H2H and H2K. A relay has two windings 12, 13, in opposition, and an unbalance of currents in the windings produces a magnetic field sufficient to overcome the holding force of a permanent magnet 21 so that the armature 14 moves under the force of its biasing spring 17 to a position away from magnet 21. Magnet 21 is not strong enough to re-attract the armature 14, so the armature is reset by energizing winding 12 momentarily or, alternatively, by manually depressing the armature (Fig. 6, not shown). The relay is used for controlling an electric heating device, normally controlled by a bimetal arrangement 38, such that overheating of a heater wire 56 affects a layer 76 of a material with a negative temperature resistance coefficient, current passes through the layer 76 from wire 56 to wire 49, unbalance of currents in relay windings 12,13 occurs and the armature 14 moves to its open position, thereby opening contacts 19, 23 and removing power from the control circuit.
Patent GB-765038-A (GB)
Title: Machine for barking pulpwood and the like
IPC: B27L1/10
Filed: 1955-03-17
Abstract: 765,038. Removing bark from wood. SKOGSBERG, B. A., and LARSSON, E. N. March 17, 1955 [March 18, 1954], No. 7803/55. Class 145 A machine for removing bark from logs by means of a cutter 1 mounted on an arm 2 pivotable about a shaft 11 has a pair of tilted feed wheels 4, 4<SP>1</SP> for rotating and feeding a log axially, the feed wheels being journalled on a dommon frame 28 which is adjustable about a vertical shaft 22 by means of a handwheel 5, screw 32 and screwed sleeve 33, for varying the rate of axial feed. The machine may be mounted on a tractor and the power take-off connected to the feed wheels by a universally-coupled shaft 6 and to the cutter by belts 17, 20. The feed wheels are preferably toothed and interconnected by a chain 31. Supports 8, 8<SP>1</SP> of U-shape are adjustably mounted in the ends of the beam 26 carrying the shaft 22 and are provided with rollers 39. The head 13 for the cutter 1 is pivotally mounted in the arm 2 so that the cutter can tilt to adapt itself to irregularities and an open-ended hood 14 is mounted over the cutter. The cutter can be raised from the log by a pedal 7 connected at 25 to the arm 2 by a wire 24. The cutter is provided with means for adjusting the depth of cut.
Patent GB-168925-A (GB)
Title: Improvements in and relating to wireless reception and particularly to methods and means whereby the direction of the incoming waves can be determined
IPC: G01S1/02
Filed: 1920-03-16
Abstract: 168,925. Macrorie, A. K., Airey, H. Morris-, and Long, S. H. March 16, 1920. Directive signalling.-Wireless receiving apparatus comprises two rotatable aerial coils set at an angle to each other, both aerial circuits being coupled to a common receiving circuit. The two aerial circuits are damped alternately at an audible frequency, and when there is equality of reception on the two aerials a steady note is heard, whereas inequality of reception gives a beat effect. The direction of the incoming waves lies along the bisector of the angle between the aerial coils when these are giving equal reception. In the arrangement shown in Fig. 1, the aerial coils S1, S, are respectively connected in series with inductances L1, L3 and condenser C1, and with inductances L2, L4 and condenser C2. The plates and filaments of two valves V1, V2 are connected across the inductances L1, L2 so as to damp the aerial circuits when current is allowed to pass through the valves. The resistance of the valves is varied at an audible frequency by a source LF supplying potentials of opposite phase to the grids G1, G2 through transformers T1, T2, or through resistance couplings. The inductances L3' L4 are coupled to a receiving and amplifying circuit. In a modification shown in Fig. 2, the grids G1, G2 are alternately connected to a point on the filament battery B by a rotary switch C. In another modification, a rotary switch is arranged to connect the grids in turn to the opposite ends of the filament battery. In a further modification shown in Fig. 4, a rotary switch C short-circuits the condensers C1, C2 alternately.
Patent GB-1500197-A (GB)
Title: Method for forming a glass film on a silicon steel sheet
IPC: C21D8/12
Filed: 1975-02-25
Abstract: 1500197 Annealing silicon steel KAWASAKI STEEL CORP 25 Feb 1975 [28 Feb 1974] 7867/75 Heading C7N  An adherent uniform glass film is produced on silicon steel sheet having a B 8  value of >1À88 Wb/m<SP>2</SP> by decarburizing the cold-rolled sheet in wet hydrogen to form a surface film of FeO-SiO 2 . A coating of MgO annealing separator is then applied, after which the sheet is coiled and annealed at 800-920C for at least 10 hours to fully develop a (110)[001] secondary recrystallization structure. Finally annealing at 1000-1200C is carried out to form the glass. During the recrystallization anneal the atmosphere is a neutral gas, particularly nitrogen, which is replaced, below 950C, with hydrogen for the final anneal. The steel may contain 0À005-0À2% Sb.
Patent GB-124324-A (GB)
Title: Method of and Means for Effecting Rapid Crystallization of Substances in Solution.
Inventor: REYNARD OTTO
IPC: B01D9/00
Filed: 1918-05-11
Abstract: 124,324. Reynard, O. May 11, 1918. Crystatazing.-Liquids to be cooled to cause substances in solution to crystallize out flow over a succession of trays having hollow bottoms and sides through which cooling-water circulates, the liquid flowing from the last tray into filtering- bags. The apparatus is stated to be specially applicable to the manufacture of phenacetin. The trays 3, 4 have overflow sills 5 at their ends, at the sides of which are fixed wall-pieces 13. From the tray 5, the liquid passes to filtering-bags 6, where the crystals are retained, the liquid passing away to an evaporator.
Patent GB-1428764-A (GB)
Title: Method of and apparatus for cooling metal bars heated to a high temperature
IPC: B21B39/00
Filed: 1973-02-19
Abstract: 1428764 Rolling mill plant NIPPON STEEL CORP 19 Feb 1973 [23 May 1972] 7983/73 Heading B3M [Also in Division B8] Metal billets are turned and cooled while conveyed over a bed 3 in groups, air cooling taking place in zone I and water spray being used in zone II. The cooling and conveying bed, Figs. 6, 7, comprises fixed supports 11 with pivotable dogs 12, and horizontally movable supports 21 having pivotable dogs 28 and upwardly extending projections 22. When the supports 21 are reciprocated horizontally the billets are maintained in groups but, as each billet travels down the sides 25 of the projections 22, it is turned about its longitudinal axis, Fig. 8. In a modification, Fig. 9, a rotatable disc 41 and crossmember 43 are mounted on each support 21, in place of the projection and dogs 22, 28. A further construction, Fig. 10, comprises conveyer chains 45 having pushers 46 the billets being turned as they pass over a fixed projection 47. In Fig. 4, means for transferring billets in re-arranged batches from zone I to zone II comprises a lifting device 6 which places the groups on a roller table 8 (also Figs. 3a, 3b, not shown). The number in each group is chosen to match the capacity of a magnetic crane device (10, Fig. 5, not shown). Cooling details.-In zone I the air cooling reduces the billet temperature from approximately 1100‹ to 600‹ C., the rate of turning and the contact between adjacent billets in a group minimizing distortion of the billets. Distortion in zone II is also minimized by intermittent operation of water cooling sprays 4, the periods of interruption reducing the temperature differential of each billet. Cooling zone II has a range of 650-250‹ C. approximately. The speed of operation of the bed(s) is varied according to the cross-section dimensions of the billets. The billets may be of circular section.
Patent GB-403255-A (GB)
Title: Improvements in or relating to the treatment of vegetable fibrous materials
IPC: D06M11/62
Filed: 1933-03-16
Abstract: Vegetable fibrous materials are subjected to the action of ammoniacal copper oxide solution containing less than 1.5 per cent of alkali metal hydroxide, contraction of the fibres is then effected by means of dilute acid, water or dilute alkali, and finally the copper is removed in the usual manner.  In modifications, after treatment with the ammoniacal copper, the fibres are mercerised, or the ammoniacal copper may be applied locally or the fibres may be bleached or mercerised before treatment.  Local effects may also be obtained by locally hot pressing a fabric and then treating with the ammoniacal copper. In examples: (1) bleached creton cotton fabric is treated with the ammoniacal copper containing alkali and the fibres simultaneously contracted and decoppered by means of sulphuric acid; the finished fabric is soft and linen like: (2) calico and also mercerised cotton yarn after treatment with the ammoniacal copper are treated with caustic soda or potash and then decoppered: (3) cotton fabric and a card band of ramie or China grass fibres are treated first with the ammoniacal copper, then mercerised and finally decoppered: (4) cotton fabric, reserve printed with dextrine is treated as in the previous example, damask like patterns being obtained.  Mixtures of vegetable fibres with other natural or artificial fibres may be used in the process, and the fabrics may be treated on one side only, and in the loose or stretched condition. Specification 301,392, [Class 42 (i), Fabrics, Finishing &c.], is referred to.
Patent GB-1137478-A (GB)
Title: Electrical supervisory circuits
IPC: H02H5/04
Filed: 1966-02-23
Abstract: 1,137,478. Protective arrangements. SIEMENS - SCHUCKERNWERKE, A.G. 23 Feb., 1966 [25 Feb., 1965], No. 8035/66. Heading H2K. In a protective arrangement having a relay 4 which releases on increase of the resistance of a positive temperature coefficient resistor K associated with a protected apparatus, e.g. a motor M, incorrect operation in the event of a short-circuit 10 is prevented or indicated by auxiliary means which are energized only when the voltage across the conductors 1, 2 falls below that applied to the auxiliary means. In Fig. 1, the voltage across the conductors 1, 2 must fall below that at the tapping 6 of a potentiometer to unblock a rectifier 7 and permit current to flow through an indicating lamp 8 and a relay 9 which effects the de-energization of the motor M. In other arrangements the relay 9 is replaced by a second coil on the relay 4 which causes the relay 4 to release when a short circuit occurs. When the supply is A.C., the two relay coils are supplied from separate transformer secondary windings through bridge rectifiers.
Patent GB-217657-A (GB)
Title: Improvements in or relating to the sealing of bags or the like
IPC: G09F3/03
Filed: 1923-03-21
Abstract: 217,657. Prieto, E. F. March 21, 1923. Seals. - Seals for the fastening cords or wires of bags &c. of the kind consisting of two parallel flat plates connected together by light webs, including a central web over which the knots are tied, as described in Specification 22828/13, instead of being crushed close together are closed so that the plates are deformed to provide a concavity for the knots and contact with one another ouny along the edges. Pliers having concave dies c, d, Fig. 1, may be used, and the dies may be recessed to receive exchangeable type for embossing the date or other marks upon the seals. The arms a, b of the pliers are pivoted together at e, and the dies c, d are mounted on the arm b, the die c being secured by a screw f in a socket k, and the die d being guided in a socket i and advanced by means of a cam a<1> on the arm a, against the action of a returning spring g. Fig. 2 shows various forms of seal, in which the central web is modified to facilitate formation of the concavity.
Patent GB-385311-A (GB)
Title: Improvements in electric gaseous discharge devices
IPC: G03G15/00
Filed: 1931-03-17
Abstract: 385,311. Discharge lamps. CLAUDELUMIERE, SOC. ANON. POUR LES APPLICATIONS DES GAZ RARES A LA LUMIERE, PROCEDES G. CLAUDE, 3, Avenue de l'Opera, Paris. March 17, 1931, No. 8115. Convention date, Nov. 5, 1930. [Class 39 (i).] An arc discharge tube contains a gas consisting of at least one rare gas and no light-giving metallic vapour, at a pressure between 0À1 to 3 millimeters, the pressure being lower the greater the cross section of the tube, and the value of the pressure in millimetres is included between the limits 0À6/d and 8/d, where d is the diameter of the tube in centimetres. The filling is neon with or without a small addition of argon, crypton, or xenon. The cathode 6 is of potassium or other alkaline metal and the cathode chamber is arranged as described in Specification 379,271, so that vapour is excluded from the lighting tube 9 ; or the cathode may be indirectly heated. The anode is hollow and is provided with a dielectric lining and covering 13, so as to confine the discharge to a small zone of one-seventh the total area of the anode. The envelope is closely spaced from the anode so as to confine the deposition of volatilized material to the interior of the anode. The electrodes and inner wall of the envelope are charged with occluded gas by temporarily increasing the gas pressure or by means of a discharge. A resistance 7, absorbing one-tenth of the consumed energy, is included in the circuit. Dimensions, characteristic curves, and the best conditions for operation are given. Specification 24164/11, [Class 39 (i), Electric lamps, Arc &c.], also is referred to.
Patent GB-255511-A (GB)
Title: An improved hopper or receptacle for facilitating loading vehicles
IPC: B65G67/24
Filed: 1925-04-23
Abstract: 255,511. Smith, E. J. April 23, 1925. Multiple fasteanings for doors.-The door e of a hopper is hinged at l and is fastened by a bolt f entering a socket h and by bars g pivoted at g<2> and each engaging gated sockets i on the side and one of the ends b of the hopper. The bars g are slotted at g<1> and actuated by a pin f on the bolt f.
Patent GB-1412333-A (GB)
Title: Closure device for ships tank stabilising installations
IPC: B63B39/03
Filed: 1973-02-20
Abstract: 1412333 Stabilizing ships H HALDEN 20 Feb 1973 [30 Jan 1973] 8248/73 Heading B7M [Also in Division F2]  Closure devices 4 have closable air discharge and admission orifices 10 and shut-off plates 9 for the orifices shut-off the air spaces of lateral tanks such as 2a, 2b of a ship's stabization system. Each orifice is in an end portion of a laterally perforated housing element 10a fixed to the ship's hull 8 and having a vertical axis. The shut-off plate of each device is moved coaxially with the housing element by drive 11  arranged at the end of the element remote from the orifice. The embodiment shown is used to stabilize rolling. In that of Fig. 4 (not shown) water is urged through a pipe attached to the device to compensate keeling.
Patent GB-214968-A (GB)
Title: Improvements in sealing tin boxes having usable lids
IPC: B65D55/06
Filed: 1924-04-01
Abstract: 214,968. Collett, A. C. April 28, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Sealing devices for closures. - The removable lid 3 of a tin box 1 is sealed by a strip or disc 4 of tin or like metal soldered to the lid and rim 2 of the box and over the joint between them. The strip or disc has a slotted flap or tongue to facilitate the tearing-off of the sealing strip or disc or the strip may have an overlapping part which is not soldered and can be raised for the same purpose.
Patent GB-932351-A (GB)
Title: Emergency chain links
IPC: F16G15/02
Filed: 1960-03-09
Abstract: 932,351. Emergency connections for oval link chains. GEWERKSCHAFT EISENHUTTE WESTFALIA. March 9, 1960 [March 16, 1959], No. 8397/60. Class 24. An emergency connection for broken chains comprises two eye portions 7 connected by a normal link 8. Each eye 7 is adapted to fit a U- shaped link 2 which engages with the end link 1 of the respective broken end of the chain. Locking pins 11 are fitted as shown.
Patent GB-386168-A (GB)
Title: Improved process for the manufacture of artificial threads
Inventor: JAGER ALWIN
IPC: D01F2/06
Filed: 1932-03-22
Abstract: When spinning viscose artificial silk &c. increased speeds of spinning are permitted by the use of viscoses containing a normal percentage of cellulose, but which have been prepared with less than 35 per cent carbon disulphide relative to the alpha cellulose content of the alkali cellulose.  Speeds of 90-150 metres per min. may be employed, and it is preferred to work at the speed which gives an entire absence of broken filaments.  Spinning baths containing magnesium sulphate may be employed, for example, a bath containing 10-14 per cent sulphuric acid, 12-15 per cent sodium sulphate and 15 per cent magnesium sulphate.
Patent GB-1305272-A (GB)
IPC: F01P7/12
Filed: 1970-02-23
Abstract: 1305272 Fluid-pressure servomotor systems M BEHR [trading as SUDDEUTSCHE KUHLERFABRIK JULIUS FR BEHR] 23 Feb 1970 [22 Feb 1969] 8486/70 Heading G3P The temperatures of a main coolant circuit 50 and a subsidiary coolant 49 in particular on a rail vehicle are regulated respectively by fan 5 and louvres 48 and fan 6 and louvres 47 which fans and louvres are controlled by a common hydraulic circuit having a pump 2 and a valve 8 regulating pressure supplied to fan motors 3, 4 and the piston-cylinders 12,13,10,11 for the louvres in accordance with the position of temperature responsive valves 43,52,53. The flow from port 33 of valve 8 determines the pressure differential across restriction 35 of spring-loaded valve member 37 and thus the position of the latter which controls the amount of flow from pressure line 15 back to reservoir 1 via line 21. Relief valve 36 loaded by spring 40 and the back pressure in line 21 controls the pressure at port 33 which may be adjusted by screwing crown 42 relative to the piston 39. Valve 43 is responsive to the coolant temperature of the subsidiary circuit and regulates the pressure fed to piston-cylinders 10, 11 and the flow back to the reservoir and also the flow to the fan motors. Even when the valve 43 is fully closed some flow takes place through restriction 51 and motors 3, 4 will only operate at 85% full speed. Valve 53 is responsive to the  coolant temperature of the main circuit and in addition to controlling motors 3,4 and pistoncylinders 10,11 controls the pressure fed via line 28 to the piston-cylinders 12,13. Valve 52 is also responsive to the coolant temperature of the subsidiary circuit but will only close in response to a rise in temperature well above the normal operating range and caused by the heat exchange between an operated hydro-dynamic brake and the subsidiary circuit. Heat is dissipated sufficiently rapidly for excessive cooling of the main circuit not to take place.
Patent GB-1105765-A (GB)
Title: Arrangement for measuring the cone angle of conical screw-threaded recesses
IPC: G01B3/56
Filed: 1966-02-25
Abstract: 1,105,765. Taper gauges; measuring diameters. SIEMENS PLANIAWERKE AKTIENSCHAFT FœR KOHLEFABRIKATE. Feb. 25, 1966 [Feb. 25, 1965], No. 8530/66. Headings G1M and G1X.  Apparatus for measuring the core angle of conical screw threaded recesses comprises a shaft 2 and two discs 3, 4 which have conical screw threads 9, 10 to engage with the screw threads of the recess, the disc 3 being solid with the shaft, and the disc 4 being displaceable along the shaft, so that with both the discs screwed into the recess, the deviation of the core angle, which is proportional to the spacings between the discs, from a nominal valve is represented by the angular relationship between a fixed marking on the disc 4 and markings on a scale 11 carried by the shaft 2. In use the disc 4 is screwed in place, driver pins 7 in the disc 3 engaging with recesses 8 in the disc 4, and the driving torque being applied via a slipping clutch 6 and handle 5. The disc 3 is then lowered with the shaft 2 into the recess and is screwed in place again via the slipping clutch 6. The rotation of the shaft 2 relative to the disc 4 required to do this is dependent on the pitch of the screw thread and is a measure of the deviation in the spacing of the two discs from a nominal value for which the apparatus has been calibrated. The diameter of the recess at its opening is measured by screwing a disc 13 and a screw threaded flange 12 into engagement with the flat surface adjacent the recess opening, the angular position of the disc 13 when the occurs being a measure of the spacing of this flat surface and the top surface of the disc 4, and thus of the required diameter. If the recess diameter is large the flange 12 may be replaced by a screw threaded bolt on the disc 4, and carrying a smaller disc performing the same function as the disc 13.