baber/WOPTO huggingface dataset:
Patent GB-712376-A (GB)
Title: Improvements in or relating to the manufacture of vinyl chloride
IPC: C07C17/08
Filed: 1952-07-17
Abstract: Vinyl chloride is obtained by reacting acetylene and ammonium chloride at 250-500 DEG  C. in the presence of a hydrochlorination catalyst and recovering vinyl chloride and ammonia from the reaction mixture.  It is preferred to operate at 250 DEG  to 350 DEG  C. and to use a molar ratio of acetylene to ammonium chloride of at least 2 : 1 and preferably of about 3 : 1 and the excess acetylene may be separated and recycled continuously to the reaction. Steam, nitrogen, or other inert gaseous diluents may be used with the acetylene and ammonium chloride vapours.  The catalyst may comprise mercury in which case the acetylene is advantageously used as a carrier for the ammonium chloride vapour and for the mercury vapour and the reaction is completed over a contact mass such as activated carbon. Alternatively, activated carbon may be impregnated with mercuric chloride or barium chloride or both. Other catalysts specified are chlorides of bismuth, lead, barium, magnesium, vanadium, aluminium, zinc and iron.  The catalyst may be handled as a body of finely divided material which is maintained in a fluidized state by regulating the vapour velocity through the reaction zone, or it may be handled in pelleted form as a compact bed which is moved through the reaction zone in concurrent or countercurrent contact with the preheated acetylene. The reaction may also be conducted by adding ammonium chloride to a melt of metal chloride hydrochlorination catalysts and contacting the mixture with acetylene.  Also the ammonium chloride may be mixed with inert, stable, organic liquids which act as heat transfer media.  The vaporized ammonium chloride may then be contacted with acetylene in a reaction zone containing the catalyst in bed form or the reaction may be conducted in the organic heat transfer medium by forming a slurry of the catalyst and the ammonium chloride charge which is contacted with a stream of preheated acetylene gas.  Specified organic liquids are chlorinated diphenyl, diphenyl, diphenyl oxide, mixtures of diphenyl and diphenyl oxide, ditolyl ethane, terphenyl, and highly aromatic petroleum oils. Examples are given, the acetylene used in each case being diluted with nitrogen.  In one of the examples the catalyst used comprises activated carbon impregnated with barium chloride and a small amount of mercuric chloride.
Patent GB-631413-A (GB)
Title: Improvements in or relating to road vehicles for transporting animal carcases
IPC: B60P3/05
Filed: 1947-07-10
Abstract: 631,413. Insulated vans. WILSDON & CO., Ltd., and WILSDON, L. F. July 10, 1947, No. 18216. [Class 108 (i)] A body for a motor driven road vehicle has a thermally insulated structure interiorly lined with non-ferrous sheet metal and a roof the ceiling of which is provided with overhead rails 7 wherefrom carcases 9 may be suspended from hooks on runners 8. The frame, which is preferably of light alloy, carries internal and external panels 13 and 14 respectively separated by sheets of insulating material 12. Panels 13 are lined on their inner faces with non- metallic lining boards 15. The roof 5 has two adjustable ventilators 16. At the rear are doors 4 hinged at 17 and closing on to rubber strips to form a fluid-tight seal.
Patent GB-1023717-A (GB)
IPC: C08G2/00
Filed: 1964-04-01
Abstract: 1,023,717. Coatings; coated aluminium strips. E. I. DU PONT DE NEMOURS & CO. May 1, 1964 [May 3, 1963 ; April 13, 1964], No. 18221/64. Headings B2B and B2E. [Also in Divisions B5 and C3] Steel panel or aluminium strip or sheet is coated with a benzene solution of a hexafluoroacetone modified polyethylene, the solvent then being removed by heating. The coating may also be applied as a melt. The panel may be warmed prior to coating.
Patent GB-1194084-A (GB)
Title: Improvements in or relating to Apparatus for Heating Dielectrics and Poor Conductors
IPC: H05B6/64
Filed: 1968-04-17
Abstract: 1,194,084. Microwave heating. COMMISSARIAT A L'ENERGIE ATOMIQUE. 17 April, 1968 [18 April, 1967; 6 Nov., 1967], No. 18229/68. Heading H5H. [Also in Division H1] Apparatus for heating insulators and poor conductors by high-frequency dielectric loss comprises a cavity resonator formed by a conductive helix 2 arranged coaxially within and electrically connected to a conductive cylinder 21, the cavity being supplied by an oscillator 7 which is sustained by reactive power from the cavity. As shown, the cylinder 1 is earthed and connected at 5 to one end of the helix 2 and the helix is connected to the anode P through capacitor 8. The helix 2 is hollow and watercooled. An automatic tuning capacitor 9 adjusts the oscillator frequency to the resonant frequency of the cavity. A connection 10 formed anywhere on helix 2 enables it to be connected to grid G through capacitor 11 and to earth via the series-connected inductance 12, ammeter 13 and resistance 14. The cavity acts as a quarter-wave resonator. In Fig. 3 (not shown), the helix 2 is connected at both ends to cylinder 1 and the cavity acts as a half-wave resonator. A supporting dielectric tube 3 may be provided for helix 2. Work 4 may be screwed into the helix or it may be rotated and/or moved axially in the helix. The cylinder 1 may be closed at both ends and evacuated or filled with gas under pressure. The cavity may be used to obtain single crystals of alumina, titanium oxide or barium titanate. The apparatus can be used for sintering ceramics, heating plastics for moulding and shaping, continuously heating frozen food, ionizing gas or for heating babies' feeding bottles.
Patent GB-219989-A (GB)
Title: Improvements in or relating to the separation of the elements of the air
IPC: F25J3/04
Filed: 1924-07-30
Abstract: 219,989. Soc. l'Oxylithe. July 31, 1923, [Convention date]. Separating gaseous mixtures by liquefaction.- In the separation of the elements of air by liquefaction and distillation, the current of compressed air is passed through a primary exchanger and then divided into two parts. One of these passes through a second exchanger to a primary expansion tap while the other passes through a vaporizer into a coil under the first tap and terminates in an expansion tap between the two exchangers. Fig. 1 shows the path of the nitrogen issuing from the separating column 1 and passing through the rotary engine 3 to a heat exchanger 4 through which the air to be liquefied passes in counter current from the compressor through a conduit 5. Fig 2 shows diagrammatically the path of the air to be liquefied, which flows first through a heat-exchanging coil 6 and is then divided, one part flowing through a second exchange coil 8 to an expansion tap 9, while the other part flows through a pipe 10 to the vaporizer coil 11 at the base of the rectifying column, a second coil 12, and an expansion tap 13. Plates are disposed between the coils 11, 12, and a third expansion tap 15 may be interposed before the coil 12. The distillation plates 16, 17, Fig. 4, are pierced with holes through which pass cords 19 of asbestos or rods of wood or metal by which the liquid descends. The air may be expanded from 200 to 100 kilos. per sq. cm. at the point where the circuit forks. An expansion engine may also be disposed between this point and the vaporizer coil 12.
Patent GB-146339-A (GB)
Title: Suspension patch for balloons
IPC: B64B1/58
Filed: 1920-07-02
Abstract: 146,339. Goodyear Tire & Rubber Co., (Assignees of Kraft, H. T.). Sept. 11, 1916, [Convention date]. Cars, suspending from balloons. In means for connecting a pair of load-suspension cable loops 10, 18 to the balloon fabric, the ends of each loop are unravelled and cemented as indicated at 11 to a fabric finger 13, and on to this is then cemented and sewn a longer finger 15, cross-sewing 16 providing additional security. The four fingers 15 are secured to the balloon as shown in Fig. 3 to distribute the strain, and are further attached by first a patch-piece 19, Fig. 5, and then a second covering-piece 22, Fig. 6, these pieces having holes 21, 23 through which the ropes 10, 18 extend, and being cemented and sewn to the fingerpieces and to the balloon.
Patent GB-783572-A (GB)
Title: Dispensing device for mixture of liquids, especially petrol and lubricating oil
IPC: B67D7/74
Filed: 1955-06-24
Abstract: 783,572. Dispensing mixed liquids. DEUTSCHE GERATEBAU GES., [formerly DEUTSCHE GERATEBAU AKT.- GES.]. June 24, 1955 [June 25, 1954], No- 18328/55. Class 116 A pump 26, Fig. 1, for delivering an additive, e.g: oil, to be mixed with a main constituent, e.g. petrol, is driven from the shaft 3 of the meter 1 for the main constituent through change-speed gearing engaged by dog clutches effective only on one direction of rotation and driving the pump 26 through a resilient coupling. This permits the desired gear to be engaged at any time without necessitating an initial rotation of the pump 26. In the construction illustrated four ratios may be selected by a lever 20 carrying forks 18, 19 for moving dog clutches 16, 17 into engagement with dogs on gears 8 ... 11 meshing with gears 12 ... 15 on a countershaft 23 geared to a shaft 25. The teeth of the dog clutches are of saw-tooth form so that they are effective in one direction only. The shaft 25 drives the pump through an arm 31, Fig. 2, carrying a pin 32 engaging within a hole in a plate 33 on the pump shaft and biased into engagement with the driven edge of the hole by a spring 35. Oil is supplied to the pump 26 from a glass 27. A counter 4 registers the volumes of petrol and oil delivered, their prices, and the total price of the delivery.
Patent GB-121195-A (GB)
Title: Improvements in and relating to Pneumatic Percussive Hammers and similar Tools.
Inventor: ARTHUR JOHN
IPC: E21B1/30
Filed: 1917-12-11
Abstract: 121,195. Arthur, J. Dec. 11, 1917. Percussive hand tools.-A pneumatic hammer or similar tool has the exhaust ports 20 surrounded by a deflector 30 cub away at a part of its periphery and provided with an annular groove to receive a split spring locking ring 32 one end of which is turned inwards so as to engage any one of the ports 20. The throttle valve 38 is pressed upwards by a spring 50 and fits in a bush 36 held by a threaded cap 39, the bush and cap being surrounded by a strainer 46. The cap 39 has grooves 49 in its end, a pin 47 engaging the grooves to lock the cap and being itself held by a spring retaining clip 39b engaging an annular groove in the cap. Fluid from the hose 40 passes to the throttle valve through ports 43, annular groove 41, and a chamber 44 surrounding the cap. The throttle valve is operated from a trigger 58 through balls 57, 59, a pin 10, bell-crank lever 55 and a regulator 51, the latter being pressed upwards by a volute spring 54 weaker than the throttle valve-spring 50, and comprising a threaded rod 52 whereby it may be adjusted in length to render idle the first movement of the trigger 58. When the tool is not is use, the trigger is locked by a spring-pressed plunger 63 which has a keyhole slot 58 engaged by a spring-pressed locking plunger 67. The handle 9 contains a reservoir 26 of volume equal to that of the piston chamber; it is threaded to the barrel 1 and is locked by a pin 77 which passes through one of an odd number of holes in the handle and into one of an even number of recesses 74 in the barrel, a split spring clip 75<a> passing through the head of the pin and engaging an annular groove in the handle. Specification 6244/13 is referred to.
Patent GB-1420560-A (GB)
Title: S-i-v-benzo-1,2,4-thiadiazines
IPC: A61K31/55
Filed: 1974-04-26
Abstract: 1420560 3-Aminomethyl-1-phenyl-benzo-1,2- 4-thiadiazine-1-oxides BEIERSDORF AG 26 April 1974 [30 April 1973] 18408/74 Heading C2C Novel 3-aminomethyl-1-phenyl-benzo-1,2,4- thiadiazine-1-oxides of the general formula wherein R<SP>1</SP> is a hydrogen atom or a C 1-4  alkyl or hydroxyalkyl group, R<SP>2</SP> is a C 1-4  alkyl, C 1-4  hydroxyalkyl, methoxy-C 1-4  alkyl or cycloalkyl group, or R<SP>1</SP> and R<SP>2</SP>, together with the adjacent nitrogen atom, form a pyrrolidino, piperidino, hexamethyleneimino or morpholino group, R<SP>3</SP> is a hydrogen or halogen atom or a C 1-4  alkyl, nitro or amino group and R<SP>4</SP> is a hydrogen or halogen atom or a C 1-4  alkyl, methoxy or dialkylamino group, and acid addition salts thereof are prepared (a) by reacting a 3-chloromethyl - 1 - phenyl - benzo - 1,2,4 - thiadiazine- 1-oxide of the general formula  with an amine of the general formula R<SP>1</SP>R<SP>2</SP>NH, and (b) when R<SP>3</SP> is an amino group, by reducing the corresponding compound in which R<SP>3</SP> is a nitro group, followed optionally by salification of the product. 3 - Chloromethyl - 1 - phenyl - benzo - 1,2,4- thiadiazine-1-oxides of the second general formula above are prepared by reacting a 2- chloroacetamidodiphenyl sulphide with H 2 O 2  in glacial acetic acid and cyclizing the resulting sulphoxide with hydrazoic acid and concentrated H 2 SO 4 . Pharmaceutical compositions having antihypertensive and spasmolytic activity and a depressive action on the central nervous system comprise, as active ingredient, a 3-aminomethyl- 1-phenyl-benzo-1,2,4-thiadiazine-1-oxide of the first general formula above or a pharmaceutically acceptable acid addition salt thereof, together with a pharmaceutically acceptable carrier or diluent.
Patent GB-355861-A (GB)
Title: Process for the separation of carbon monoxide from mixed gases containing hydrogen
IPC: C10K3/04
Filed: 1930-06-16
Abstract: Carbon monoxide is removed from admixture with hydrogen, in gases such as water gas, by passing the gaseous mixture together with steam over a contact mass containing carbon and magnesium oxide, hydroxide, or carbonate which is maintained at a temperature not substantially exceeding 500 DEG  C.
Patent GB-1410378-A (GB)
Title: Drawers
IPC: A47B88/00
Filed: 1972-12-08
Abstract: 1410378 Drawers L B (PLASTICS) Ltd 8 Dec 1972 18472/75 Divided out of 1410377 Heading A4B The disclosure of the present Specification is identical to that of Specification 1410377 but the main claim is directed to a drawer construction in which the identical, extruded sides 6, 7 and back 8 comprise upper and lower hollow portions inter connected by a single web 11 defining a groove 12 which is utilised at the sides 6, 7 to engage runners.
Patent GB-1094290-A (GB)
Title: Irradiation apparatus
Inventor: BRET ANTOINE
IPC: H01R24/58
Filed: 1966-04-27
Abstract: 1,094,290. Support for irradiating specimens. COMMISSARIAT A L'ENERGIE ATOMIQUE. April 27, 1966 [April 30, 1965], No. 18484/66. Heading H5R. [Also in Division G6] A furnace and irradiation apparatus, comprising a temperature control means, e.g. electrical heaters, and an irradiation tube 2 with electrical specimen temperature - measuring means, is characterized by a support collar 8 carrying an annular female electrical connector 14 with multiple contacts connected to a control station, and an annular head 18, 20 supported on the collar 8 fixed to the furnace 4, 6 and to a first male electrical connector 26 engaging the female member. The annular head 18, 20 defines a central space for the irradiation tube 2 and its supporting pin 32 which carries an abutment 34 bearing on the annular head 18, 20. A second male electrical connector 36 carried on the pin 32 also is in contact with the female connector 14. The first male connector 26 may be supported on a cylindrical sleeve 22 fixed to the annular head 20. The female electrical connector can be supported on a sleeve 12 also carrying the current supply wires 16. The first and second male electrical connectors 26 and 36 may be one above the other, the female member having several banks of contacts. The temperature control means, e.g. resistance heaters, may be connected by wires (28) to the lower male connector and the temperature-measuring means, e.g. a thermocouple, may be connected to the upper male member 36 by wires 39. The annular head 18, 20 and the abutment 34 on the support pin may have sealed ducts (30) for the electrical leads (see Fig. 1, not shown). There may be means, e.g. shoes or transverse screws (not shown) for locking the annular head 18, 20 to the collar 8, and a yoke 44 to clamp the end of the support pin. The yoke may carry a screw 48 for bearing on the end of the support pin. There may be a protecting cover 50 over and screwed to the yoke 44. The apparatus is assembled by screwing collar 8 to a nuclear reactor, then mounting the sleeve 12 and female member 14 on the collar. The temperature control means and annular head 18 are inserted, thus connecting the first male member with the female member. The shoulder 20 of the head is then clamped. The irradiation tube 2 and support pin are then inserted, thus connecting the second male member with the female member. Yoke 44 is then fitted and cover 50 is screwed into position.
Patent GB-630526-A (GB)
Title: Improvements in and relating to thermally responsive electric circuit breakers
IPC: H01H73/28
Filed: 1947-07-11
Abstract: 630,526. Automatic circuit breakers. BRITISH THOMSON-HOUSTON CO., Ltd. July 11, 1947, No. 18520. Convention date. July 11, 1946. [Class 38(v)] An automatic circuit-breaker has a curved bimetallic strip which is stressed by an actuating member during the closing operation, the contacts then being latched closed by the strip abutting a projection on the actuating member. A switch arm 1 is secured to the free end of the bimetallic strip 2 and carries a contact 5 which co-operates with a fixed contact 4. To close the circuit-breaker an actuating member 6 having a projecting pin 9 is turned clockwise, when the pin 9 in engaging the side of the arm 1 moves the arm to close the contacts 4, 5 and stress the element 2. This stress is reduced when the pin 9 passes through an opening 10 allowing the element to move back until its abuts a projection 11, the contacts remaining closed. On overload the strip 2 bends and releases itself from the projection 11 so opening the contacts as shown in dotted lines in Fig. 4. After tripping the circuit-breaker is reset by turning the actuator 6 anti-clockwise, so moving the pin 9 up the back of the arm 1 until it passes through a further opening 13 into the position shown in Fig. 1. The circuitbreaker may be opened by hand in a similar manner, the initial anti-clockwise movement of the actuator 6 disengaging the projection 11 and allowing the contacts to open, a further projection 14 preventing rebound.
Patent GB-292366-A (GB)
Title: A coin testing device
IPC: G07D5/04
Filed: 1927-07-14
Abstract: 292,366. Nixon, C. W. July 14, 1927. Testing coins; alarms indicating attempted fraud.-A coin testing device for coin-freed apparatus comprises a depressible spring 10 along which the coins received from a shoot 24 run on edge, being guided by vertical plates 11, 12. Coins pass from the runway 10 into a shoot 25 divided by a partition 26 into conduits 27, 28 for good and spurious coins respectively. Switch fingers 30, 34 are provided on the partition 2& and guide 11 respectively for diverting coins into the conduit 28, if the spring 10 is depressed too much by overweight coins. A coin of proper weight depresses the spring to such an extent that the coin misses the switch fingers and passes into the conduit 27. The spring 10 is adjustable by a screw 18. A movable contact spring forming part of an electric circuit is provided in the conduit 28 and is moved by a spurious coin to close the circuit and sound an alarm. In a modification, the runway of channel action is carried by a spring and the switch fingers are carried by the receiving shoot and the partition respectively.
Patent GB-1063955-A (GB)
Title: Descaling or stripping machine, for example for rods or tubes
IPC: F16L55/00
Filed: 1964-05-05
Abstract: 1,063,955. Machine tools. M. VON BUSHE, and T. ALTENBRACHT, [trading as TH. KIESERLING & ALBRECHT]. May 5, 1964 [Aug. 22, 1963], No. 18720/64. Headings B3B and B3T. [Also in Division F2] In a machine for scaling or stripping rods and tubes, clamping carriages 13, 13a moved by mechanical control means are provided on either side of a rotary cutter head 2 and feed the rods in the longitudinal direction thereof, vertically adjustable means for receiving the rods being provided below the path of movement of the rods. The distance travelled by the carriages is approximately twice the length of the descaling machine 1 and the receiving means are movable in the longitudinal direction of the rods. As shown, a rod is fed on to rollers 14 of the carriage 6, gripped by clamps (6a), Fig. 2 (not shown), and passed through the cutter head 2, which is driven by a motor 3, the clamps (7a), Fig. 3 (not shown), of the carriage 13a gripping the leading end of the rod and drawing the rod through the cutter head, the clamps 6a after an interval of time being released.
Patent GB-1254699-A (GB)
Title: Improvements in or relating to pneumatic tyres
Inventor: JONES FRANK BERNARD
IPC: B60C11/04
Filed: 1968-04-20
Abstract: 1,254,699. Pneumatic tyres. DUNLOP HOLDINGS Ltd. 18 April, 1969 [20 April, 1968], No. 18765/68. Heading B7C. A pneumatic tyre tread comprises two main drainage circumferential shoulder grooves 3a, 3b, one adjacent each shoulder, and two intermediate circumferential main drainage grooves 2a, 2b which are wider than the shoulder grooves, the grooves being defined by circumferential ribs 6a, 6b, 5a, 5b and 7, the intermediate ribs 5a and 5b being wider than the shoulder ribs 6a, 6b and each being sub-divided by an auxiliary zig-zag groove 4a, 4b which is, for at least part of its depth narrower than said shoulder grooves. Each rib has a series of zig-zag slots provided in it. The main-drainage grooves may be zig-zag or linear and the auxiliary grooves zig-zag or sinuous. The Specification also discloses a textile or steel cord breaker assembly of two layers and with cords disposed at 20 degrees to the mid-circumferential plane and a carcass of four crossed plies of rayon cords disposed at 33 degrees to the mid-circumferential plane.
Patent GB-405607-A (GB)
Title: Improvements in metallic alloys
IPC: C22C19/07
Filed: 1932-07-02
Abstract: Alloys having a small coefficient of thermal expansion consist of 50-60 per cent of cobalt, 5-12 per cent of chromium, and 28-45 per cent of iron, with or without up to a total of 5 per cent of one or more of the elements manganese, titanium, vanadium, aluminium, magnesium, silicon, and boron, each less than 2 per cent, and are free or substantially free from carbon.  The alloys after casting or forging are heated to about 1100 DEG  C. for a long time and cooled either slowly or quickly, or are mechanically worked, with or without subsequent heating to about 100-500 DEG  C. followed by very slow cooling.  The Specification as open to inspection under Sect. 91 refers also to tungsten, molybdenum, nickel, and copper as optional constituents.  This subject-matter does not appear in the Specification as accepted.
Patent GB-837700-A (GB)
Title: Improvements in or relating to a process for producing shaped bodies by plasticizingcomminuted materials containing lignocellulose
IPC: D21J1/00
Filed: 1956-06-18
Abstract: 837,700. Presses for moulding ligno-cellulosic materials; fibrous compositions. WEISS, M. June 18, 1956, No. 18815/56. Classes 22 and 87(2). Shaped bodies, e.g. wall units, are produced by mixing cellulose waste liquor and comminuted materials containing ligno-cellulose e.g. sawdust, plasticising the mixture by pressing in a mould in a heated state, and forming the final product in a single operation. A mixture 10 of two parts by weight of air dried sawdust and one part by weight of cellulose waste liquor containing 20% solids is fed between flexible steel belts 1 and 2 running on guide rollers 3, 4, 5 and 6, 7 respectively. The belts are in a heating chamber and rollers 8, 9 apply pressure to the converging path between the belts so that a finished board emerges. Side strips seal the moulding space between the belts. 'Wire reinforcement may be included in the board and a layer of a veneer for covering the board may be placed on the belt 2.