baber/WOPTO huggingface dataset:
Patent GB-958696-A (GB)
Title: Production of fumaric acid
IPC: C07C51/353
Filed: 1961-06-16
Abstract: White fumaric acid is prepared by oxidizing benzene with oxygen in the presence of a catalyst and with a conversion of at least 95% per pass to maleic anhydride, which is absorbed in water to form aqueous maleic acid solution, contacting with a solid adsorbent to obtain a product with a colour not above 7 Gardner, and isomerizing to fumaric acid which is separated as a white solid. Active carbon, an acid cation exchange resin, silica gel, alumina, and diatomaceous earth are examples of adsorbent used and a series of zones active carbon, cation exchange resin and active carbon is also described. Isomerization to fumaric acid may be at between 40 DEG C. and 130 DEG C. in the presence of a ammonium bromide-ammonium persulphate or a thiourea catalyst. Specifications 853,849, 909,382 and 958,694 are referred to.
Patent GB-1008316-A (GB)
Title: Pretinning of aluminium or aluminium alloys
IPC: C23C2/02
Filed: 1962-06-06
Abstract: Aluminium and its alloys are prepared for soldering by hot dipping the pickled metal in a coating bath heated to 330-500  DEG C. and containing predominantly tin and zinc.  The aluminium article is first cleaned in a 15% solution of sodium hydroxide at 25-30  DEG C., washed, dried and then coated with a pickling agent such as fatty acid and/or resinic acid salts of metals which are more positive electrochemically than aluminium.  Tinning is then effected by dipping in a molten bath having a preferred composition by weight of 2 parts tin, 2 parts lead and 1 part zinc.  Excess coating metal is removed by shaking and the material is then dipped into a second bath consisting of 60% tin and 40% lead at 300  DEG C.
Patent GB-897563-A (GB)
Title: Thread cutting mechanisms for sewing machines
IPC: D05B3/06
Filed: 1960-06-22
Abstract: 897,563. Sewing machines. SINGER MANUFACTURING CO. June 22, 1960 [June 24, 1959], No. 21928/60. Class 112. Thread-severing means in a sewing machine comprise two relatively movable assemblies one of which has a thread-engaging finger and the other a thread-nipping finger biased against an abutment element, the thread-engaging finger being directed between the nipping finger and abutment element during relative movement of the assemblies in one direction, and not passing therebetween during relative movement of the assemblies in the opposite direction. The device is incorporated in a buttonholesewing machine. One of the assemblies is mounted on a movable bar 43 and comprises a blade 46 formed with a cutting edge 50, a threadengaging finger 47 formed with a thread-receiving notch 52, and a blade 48 formed with a threaddeflecting edge 53. The other and fixed assembly comprises a blade 62 formed with a cutting edge 65, a blade 63 formed with a lateral threadnipping finger 67, and a spring blade 69 having a lateral finger 71 which bears upon finger 67 to bias the latter against blade 62. Bar 43 is operated by the stopping mechanism at the end of a sewing operation, when a bevel 51 on blade 46 engages a forwardly-projecting guide finger 66 on blade 62, and the bobbin thread B is defected by edge 53 into notch 52. Blade 47 is also deflected by the bevelled outer edge of finger 67 to move between the latter and blade 62, Fig. 5, and thread B, thus pressed against blade 62, is held taut while being severed by the edges 50, 65. Towards the end of its inward travel blade 47 drops behind finger 67, Fig. 6, and the thread is then nipped between the latter and blade 62. The inner edges of blade 47 and finger 67 are so bevelled that blade 47 in its outward movement passes between fingers 67 and 71, whereby the thread is wrapped around finger 67, Fig. 7, and is pressed thereagainst by finger 71. When the machine is stationary a dimple 70 on spring blade 69 lies in a depression 75 in a work-feeding bar 16. After a predetermined number of stitches have been formed in a new operation, bar 16 moves to position dimple 70 on a land between depression 75 and a longer depression 76. The blade 69 is thereby depressed to release the thread, which will then be drawn off the finger 67. Dimple 70 subsequently passes into the depression 76. Specifications 225,748 and 226,133 are referred to.
Patent GB-973239-A (GB)
Title: Conveyors
Inventor: GREEN HAROLD WILLIAM
IPC: B65G23/00
Filed: 1962-06-07
Abstract: 973,239. Endless conveyers. J.P.UDAL Ltd. June 7, 1963 [June 7, 1962], No. 22035/62. Heading B8A. A conveyer belt 5 is driven by a double-acting fluid piston-cylinder motor 9 acting through a pair of oppositely acting one-way clutches (not visible in the drawing) built in to the assembly of a belt driving roll 4. The piston 10 of the motor 9 is connected to a two-armed lever 11, opposite ends of which are connected respectively to the two clutches by pairs of rods 12, 14. One rod of each pair has a tensioning member (not shown) to enable tightness of the corresponding chain to be maintained. The motor 9 is reversed at each end of its stroke by the action of a valve 16 connected by linkage 17, 18 to the lever 11. The inclination of the conveyer relative to its base frame 2 may be adjusted by a hand lever. Movement of conveyer may be assisted by provisions of a roller 19. The belt 5 may be tensioned by means 6.
Patent GB-263707-A (GB)
Title: Improvements in and relating to tobacco pipes and the like
IPC: A24F1/00
Filed: 1926-09-08
Abstract: 263,707. Vince, H. Sept. 8, 1926. Tobacco pipes and cigar and cigarette holders. -The three-winged member F described in Specification 20439/11 for insertion in the bore of a tobacco pipe &c., so as to serve for cleaning and cooling purposes, is formed at or towards its mouthpiece end with a spiral portion S which prevents nicotine or small tobacco from entering the mouth. The member may have more than three wings.
Patent GB-653248-A (GB)
Title: Improvements relating to the production of ceramic ware
IPC: B28B5/08
Filed: 1947-08-08
Abstract: <PICT:0653248/III/1> A machine for treating ceramic ware comprises a conveyer which carries a series of rotatable spindles through an operating station, each spindle having a ware support and being rotated during a portion of the traverse through which it is carried by the conveyer, and a spray gun carriage which is oscillatable parallel with the movement of the conveyer, mechanism on the carriage being engageable with the conveyer to cause the carriage to move in synchronism with the conveyer, a spray gun mounted on the carriage being directed towards ware carried by the support on one of the said spindles during the synchronous movement of the carriage and the conveyer, the spray gun being operated only during the synchronous movement.  Referring to the drawings, table 15 carrying a plurality of spindles 25 equally spaced about its periphery is revolved and ware loaded upon the forms 50 as they pass a loading and unloading platform.  The spindle shafts 28 run along cam track 60 which slopes upwards as the shaft enters booth <PICT:0653248/III/2> <PICT:0653248/III/3> <PICT:0653248/III/4> <PICT:0653248/III/5> rotate through engagement of spindle pulleys 29 with belt 65.  A dog 89 on the table rim 16 engages trigger wheel 91 of the pivotable trigger 90 on the carriage 80 which is then moved in synchronism with rotating spindle 25, the weight and resistance of this carriage being balanced by the low pressure air in cylinder 88.  As the carriage 80 moves, "on" cam 114 actuates spray gun valve 111 and so causes spray gun 76 on post 81 of carriage 80 to direct a thin flat spray of banding material upon the rim of the ware on spindle 25.  After a pre-determined interval spray gun 76 is stopped by the closing of valve 111 by "off" cam 115.  Then trigger 90 is tripped over dog 89 by fixed 70, thus elevating the spindle and causing the ware to engage mask 55 and counter-spindle 40 to float within the enlarged bore 42.  The spindle, ware, mask and counter-spindle then trigger trip cam 92 and simultaneously "on" cam 104 opens carriage return valve 101 to admit high pressure air to cylinder 88 which is thus quickly returned to its initial position, the air being shut off by an "off" cam just before it reaches this position.  For glazing a pronged ware support (Fig. 8) comprising a hub 131 carrying prongs 132 replaces the hub and form 50 used for banding and no counter-spindle is required.  The gun 76 is supplied with liquid glaze as in the banding operation, but the gun is now directed towards the centre of the ware and an auxiliary gun 133 directed towards the undersurface of the ware.
Patent GB-1272863-A (GB)
Title: Laminated tube structure
Inventor: VOSS JOSEPH ALOYSIUS
IPC: A61F13/20
Filed: 1969-04-30
Abstract: 1,272,863. Tampon applicators. KIMBERLEY-CLARK CORP. 30 April, 1969 [3 May, 1968], No. 22116/69. Heading A5R. [Also in Divisions B5, B8, Dl and F2] A tubular laminate, which is preferably in the form of helically wound strips comprises an inner ply 30, an outer ply 26 of paper having a non-absorbent exterior coating and an intermediate ply 28 comprising uncoated absorbent short-fibred porous paper. The outer ply suitably comprises a major portion of bleached hardwood Kraft and a minor portion of bleached softwood Kraft; the intermediate ply may comprise groundwood and a minor amount of bleached hardwood or softwood Kraft; the inner ply consists essentially of bleached softwood Kraft. The coating on the outer surface may be of a silicone resin or a clay. The wound strips are preferably bonded by adhesive and one end of the tube may be tapered and formed of tightly abutting pleats 20. A tampon applicator device comprises a second tube 16 slidably disposed within such a tapered tube 10 and having a multiply ring 22 around the outer tube.
Patent GB-479605-A (GB)
Title: Improvements in and relating to hop powder blowers and the like
IPC: A01M9/00
Filed: 1936-08-11
Abstract: 479,605. Distributers for insecticides &c. MALTBY, H. C. Aug. 11, 1936, No. 22136. [Class 6 (i)] In a powder-blowing machine comprising a container, a blower, and means for feeding the powder into the airstream in a tunnel beneath the container, a rotary paddle is provided in the container and powder is transferred from the container to the tunnel by a rotary brush arranged in a housing or sleeve communicating at its upper side with the container and at its lower side with .the tunnel, so that the powder is delivered downwards into the air stream, the paddle and brush both being driven from a ground wheel or an axle of the machine and the blower being driven by means of an engine. Within a channel-iron frame 1 is a unitary sheet-metal structure having shaped internal partitions defining a powder box 8, a housing 9 for the powder feeding device, a housing 10 for a rotary centrifugal blower 11, and an air tunnel 12. Beneath one side of the frame 1 and below the top of the wheel 3 is hung a small internalcombustion engine having its crank-shaft aligned with and universally jointed to the shaft of the. blower 11. A fuel-supply tank 14 is mounted on the powder box 8. The shaft of a rotary agitator 16 within the box 8 is driven from the axle 2 or from a wheel 3 by belt or chain gearing. The powder passes through an aperture in the box 8 into an apertured cylinder or housing 21 and thence through an apertured block 20 into the tunnel 12, the quantity delivered being regulated by partially rotating the cylinder 21 to vary the effective outlet. The cylinder 21 is substantially filled by a rotary brush 23 driven by chain gearing from the shaft 15 of the agitator 16. At the end of the tunnel 12 is bolted a manifold 28 connected to flexible tubes 30 having fish-tail nozzles and adjustably secured on an upright frame by bolts and slots. The manifold and tubes may be replaced by others provided with different forms of nozzles, or by a square-section tube bent upwards and opening into a large fan-tail mouth. Shields may be provided to protect the carburetter and engine from dust. According to the Provisional Specification, the means for regulating the aperture in the powder box consists of a rotatable semicylindrical control member.
Patent GB-1477963-A (GB)
Title: Electromagnetic relays operable with alternating current
IPC: H01H51/30
Filed: 1975-05-22
Abstract: 1477963 Eleetromagnetic relays; electromagnets LGZ LANDIS & GYR ZUG AG 22 May 1975 [28 June 1974] 22233/75 Headings H1N and H1P An electromagnetic relay has its coils 2 surrounded by a ferromagnetic casing 1 and surrounds an armature 10 pivoted about an axis normal to the coil axis and cooperating with ferromagnetic members 7 and 4 providing a constant air gap 18 and a variable air gap 19. The armature 10 is pivoted on members 8 at its centre of gravity and is biased by a spring 12 within a slot 11 in the armature and acting between the armature and a bracket 13 adjustable by a screw 22. The spring may be so located that its bias force decreases as the armature 10 moves on energization of the coil 2.
Patent GB-315879-A (GB)
IPC: F04D27/02
Filed: 1929-07-19
Abstract: 315,879. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). July 20, 1928, [Convention date]. Controlling; fan apparatus.-When the compressor b runs below its pumping limit, the reserve flow of atmospheric air through it is assisted by the action of an air pump e connected to the suction pipe a. This pump lowers the initial pressure to such a degree that the final pressure of the compressor is lower than the atmospheric pressure. A non-return valve f and a valve hare arranged on the discharge side of the compressor. When the machine runs below the pumping limit the valve f is closed manually or automatically and the air pump e is started. When the pressure drops below atmospheric pressure, the valve h opens and air passes through the compressor in the reverse direction to the normal flow. The air pump may be controlled manually, or automatically, according to the quantity of working fluid delivered. The arrangement may be applied to a number of compressors the suction pipes of which form a group connected to the air pump.
Patent GB-1270090-A (GB)
Title: Remote control methods and systems
IPC: G08C23/02
Filed: 1970-05-08
Abstract: 1,270,090. Valves. BENDIX CORP. 8 May, 1970 [27 May, 1969], No. 22264/70. Heading F2V. [Also in Division G4] A solenoid and gas pilot valve actuator for operation of a valve in a submerged gas or petroleum pipe line (see Division G4) comprises three-way gas inlets 182, 187 operated by solenoids 152, 155. When inlet 182 is opened, piston 172 is raised to allow gas to enter at 161 and drive a vane type valve operator 164. When inlet 187 is opened, piston 171 is raised and, by means of rocker arm 180, causes lowering of piston 172 so that valve operator 164 rotates in the reverse direction. Centering mechanism for piston 171 comprises glands 175 and spring 176. A detent mechanism 181 is operated by solenoid 117. Reference has been directed by the Comptroller to Specification 1,214,050.
Patent GB-700178-A (GB)
Title: Covering for roofs
IPC: E04D11/02
Filed: 1950-09-11
Abstract: 700,178. Roofs. LINDQUIST, G. L. Sept. 11, 1950 [Sept. 21, 1949], No. 22309/50. Class 20 (4) A layer of metal foil or thin sheet, preferably aluminium, is placed between the external roofing boards or composition material and the inner roof which is permeable to moisture from the inside. A roof covering may comprise a concrete layer on which are laid asphalt-bound macadam about 20 mm. thick, heat insulation, e.g. porous wall-board, wood wool slabs or cork, 32 mm. thick, another macadam layer, a smoothing cover, foil, e.g. .05 mm. thick, is applied, and external board secured by asphalt to the foil.
Patent GB-518612-A (GB)
Title: Process for the manufacture of combined picture and sound films
IPC: G03B31/00
Filed: 1938-07-27
Abstract: 518,612. Kinematograph sound and picture films. GASPAR, B. July 27, 1938, No. 22328, [Class 98 (ii)] The picture area of a kinematographic film is exposed and and developed in the usual manner but one or more of the silver halide layers in the sound area is/are exposed uniformly so that a uniform silver deposit is obtained which is subsequently converted into a light sensitive silver salt when it is desired to add the sound record: In examples: (1) a three layer film (c.f. Specification 415,040) carries a blue-sensitive layer as the top and rear layers and a yellow dyed red-sensitive layer as the middle layer. The part colour images are printed from positive master images into different layers and the sound strip is uniformly exposed; the film is treated with a dye destroying bath, e.g., hydrobromic acid which causes local destruction of the dye but does not attack the silver or form a silver salt insoluble in the treatment bath. The layers in the sound area which have been exposed are also decolourised. The silver and silver salt is removed from the picture area but not from the sound area were it is converted into the metallic state. After fixing, the film shows the multicolour image in the picture area and a uniform blackening in the sound area. The silver is treated so as to form a light sensitive salt when it is desired to add the sound record; (2) a film is used having three layers containing components capable of colour development. If the picture and sound areas are subjected to the same treatment, the components used must be so chosen that dyes are obtained which are transparent for dark red or infra red light. The silver developed at the same time as the dyes is not removed with the usual Farmer's reducer but is transformed into silver chloride by treatment with neutral copper chloride solution. The silver chloride in the sound track is re-converted into black silver by means of developers, fogging agents or reducers before the film is fixed. Wheh it is desired to add the sound record, the silver deposit is treated so as to form a light sensitive salt, and the film may be bathed in a solution of a colour or chemical sensitizer such as benzothiopseudo cyanine-ethyliodide.
Patent GB-1430049-A (GB)
Title: Method for transporting pallets during the production of large  concrete panels and a plant for carrying out the method
IPC: B65G49/08
Filed: 1974-05-20
Abstract: 1430049 Drying KESTING INTERPREFAB AG 20 May 1974 [18 May 1973] 22341/74 Heading F4S A method for transporting pallets during the production of large panels of reinforced concrete in which the pallets arranged one behind another and loaded with the concreted large panels, are lowered, fed into a steam curing tunnel for hardening, are discharged from the steam curing tunnel, are lifted again and after removal of the large panels again loaded with large concrete panels to be cured, during lowering, a stack of pallets is formed the pallets are brought into the steam curing tunnel in the stack and the stack is transformed during lifting and before reloading of the pallets to the original formation of pallets one behind another. A plant for the production of large panels from reinforced concrete comprises a production section 1 with rails 4 on which the pallets run. The pallets have similar rails 6 so that they can be stacked on a hoisting unit 7 at either side of the production section and of the steam curing tunnel 3. Each hoist comprises a platform 11 controlled by piston and cylinder 8. The pallets are fed one at a time to one hoisting unit 7 which is lowered thereby forming a stack of pallets which is then. transferred on rails 12 to the curing tunnel. The curing tunnel has pivoted covers 14 which hermetically seal the tunnel and are raised by pistons and cylinders 16 to allow entry and discharge of the stack. After curing in the steam tunnel the stack is transferred on the rails 12 to the second hoisting unit 7 which is then raised and the pallets are discharged one behind the other while a second series of pallets with reinforced concrete panels are fed to the other hoisting unit. Pivoted rails 18 are lowered by pistons and cylinders to allow the pivoted tunnel covers 14 to descend to seal the tunnel. The curing is at an increased pressure of 0À5 to 2À00 atmospheres within the tunnel.
Patent GB-360007-A (GB)
Title: Improved process of manufacturing electric telephone cables
IPC: H01B11/12
Filed: 1930-07-24
Abstract: 360,007. Telephone cables. FELTEN & GUILLEAUME FABRIK ELEKTRISCHER KABEL, STAHL, UND KUPFERWERKE AKT.-GES., 11, Gudrunstrasse, Vienna. July 24, 1930, No. 22394. Convention date, Sept. 21, 1929. Addition to 330,731, [Class 36, Electricity, Conducting &c.]. [Class 36.1 In the process of stranding multicore telephone cables described in the parent Specification, in which the differences in mutual capacity of groups of conductors having different pitches are compensated by feeding the different groups to the stranding die at different angles, a further balancing of capacities is obtained by feeding the different conductor groups through holes in the stranding disc which have unequal angular spacing. If it is desired to increase the capacity of one group of conductors to a less extent than its neighbouring groups during stranding then this group is fed through a hole a in the stranding disc S, Fig. I, which is nearer the stranding axis than are the neighbouring holes b, c and which is so situated that the angle alpha subtended by the holes a, b is greater than the angle # subtended by the holes b, c. If the converse is to be obtained the hole a is placed at a greater distance from the stranding axis than are the holes b, c and the angle alpha is made less than the angle #. In a modified arrangement, shown in Fig. 3, the holes a, b, c may be situated at equal distances from the stranding axis.
Patent GB-384617-A (GB)
Title: Improvements in electrolytic condensers
IPC: H01G4/224
Filed: 1932-08-10
Abstract: 384,617. Electrolytic condensers. ELEKTRIZIT€TS - AKT. - GES. HYDRAWERK, 32, Drontheimer Strasse, Berlin. Aug. 10; 1932, No. 22448. Convention date, Aug. 11, 1931. [Class 37.] Electrolytic condensers 3, 4, which may have a viscous electrolyte, and impregnated paper condensers 6, 7, are housed in a single casing 1, which may be of metal or insulating material. A partition 2 divides the casing 1 into two compartments, that containing the electrolytic condensers 3, 4 being filled with porous material such as sawdust 5 and that containing the impregnated paper condensers 6, 7, being filled with paraffin or similar sealing composition 8. The terminals 9 are carried by a cover-plate 10, which is preferably of insulating material.
Patent GB-1467035-A (GB)
Title: Attacking flying targets from a submarine
IPC: F41G7/22
Filed: 1974-05-20
Abstract: 1467035 Missile launching from beneath the surface of water; missiles MESSERSCHMITT BOLKOW BLOHM GmbH 20 May 1974 [25 May 1973] 22501/74 Headings F3C and F3A The launching of a missile from beneath the surface of water is effected following the detection of sonar signals from a target. In an embodiment a helicopter 1 is moving above the surface 2 of the water and has either lowered a sonar device 4 or dropped a sonar buoy 4<SP>1</SP> into the water. Data obtained by the device 4 is passed to the helicopter via a cable 5 or radio. A submarine 3 which is totally submerged has a sonar signal receiver 6 and a missile-launching tube 7 the latter contains a missile 8 having a homing head 9 provided thereon. In use the detecting of a target causes the missile 8 to be launched from the tube 7. The missile moves vertically out of the water and, having been set in rotation about its longitudinal axis, uses the homing head to scan the horizon for the helicopter. When the missile is at the required height its direction is changed the head 9 is released and homes on the target.