baber/WOPTO huggingface dataset:
Patent GB-1260894-A (GB)
Title: Improvements in or relating to the smelting of tin
IPC: C22B25/00
Filed: 1969-08-20
Abstract: 1,260,894. Smelting furnaces. CONZINC RIOTINTO OF AUSTRALIA Ltd. 20 Aug., 1969 [8 Oct., 1968], No. 41484/69. Addition to 1,128,719. Heading F4B. [Also in Division C7] An apparatus (suitable for smelting tin ores or concentrates-see Division C7) comprises a low shaft blast furnace of high throughput, means for tapping alloy and slag from the blast furnace to an elongate launder-like furnace, means in said launder-like furnace for introducing an oxidant, a slag weir extending traversely across the launder-like furnace separating a retaining zone and a slag-settling zone, means for separately tapping molten tin and slag from said launder-like furnace, the floor of the refining zone being substantially horizontal in the direction of its longitudinal axis. Figs. 1 and 2 show a preferred apparatus. The shaft furnace 13 connects to the elongate furnace 24 in which 25 represents the horizontal floor and 39 represents the weir, slag being tapped at 38 and metal, after settling at 33, being tapped at 34.
Patent GB-870827-A (GB)
Title: Improvements in pressure fluid operated injector for lubrication purposes
IPC: F16N7/34
Filed: 1958-12-23
Abstract: 870,827. Force-feed lubricating. DEHN, S. G. (McKiernan-Terry Corporation). Dec. 23, 1958, No. 41568/58. Class 12 (3). A pressure-operated lubricating oil injector, as used, e.g. for a steam or compressed-air hammer, comprises an upright cylinder 5, a hollow piston 6 having an upwardly-extending annular wall 7 operating in the lower end of said cylinder, a stationary head 8 engageable with the wall 7, a pressure supply line 9 having a throttle valve 30 therein, pressure-supply connections 10, 11 extending from the supply line 9 at one side of said throttle valve to the lower end of the cylinder 5 and to the interior of the piston wall 7 respectively, and an oilreceiving chamber 31 formed by an annular extension 18 of an upper cylinder head 19 and by a supporting head 17 which has a plug hole 20 engaged by a plug 21 on a rod 22 having a hand ring 23 at the opposite end to the plug. The piston 6 is sealed in the cylinder 5 by packing rings 26, and a cup-packing 24a seals the inside of the piston wall with the piston head 8. The amount of oil contained in the piston is indicated by a rod 27 which is attached to one end of the piston wall and projects into an indicator gauge 28 on the top of the cylinder head 19. The oil may be pre-heated in the chamber 31 prior to it being transferred to the piston, and a screen 24 is provided in the plughole 20. A drain valve 29 positioned at the bottom of the cylinder removes residual pressure medium. In use, the steam or compressed-air is allowed to flow along the pipes 10, 11 by opening the throttle 30. The difference between the pressure exerted externally and internally of the piston 6 provides a resultant force which raises the piston, and oil is caused to flow through a hollow bolt 16, passing through the piston head 8 and the supporting head 17 into the pipe 11, through a needle-valve 15, and a gauge 14 to an injector tube 13 in the supply line 9. In a modification, Fig. 3, the cylinder 5 is mounted on the supply line by a T-connection 33 having a branch 34 attached to a lower cylinder head 35, the upper cylinder head 36 contains a filling-plug 39, and the pipe 11 enters the head 36 at 40. An annular wall 37, extending from the head 36, telescopically engages the interior of the piston wall 7. Seals 38, 41 are positioned between the walls 37 and 7 and between the piston 6 and the cylinder 5.
Patent GB-1368864-A (GB)
Title: Process and device for non-destructive measurement of the extent to which a surface layer of a material has been affected by a superficial treatment
IPC: G01B17/02
Filed: 1972-09-08
Abstract: 1368864 Ultrasonic inspection devices; ultrasonic probes CENTRE TECHNIQUE DES INDUSTRIES MECANIQUES 8 Sept 1972 [24 Sept 1971] 41786/72 Headings H4D and H4J The extent to which a surface layer of a workpiece has been affected by a superficial treatment, e.g. a thermal and/or thermochemical and/or galvanic treatment, is determined by directing an original beam of ultrasonic waves towards the surface layer, arranging for the beam reflected from the surface layer to be returned to the surface layer by reflection at least once at another reflective surface, and then measuring the energy of the reflected, returned beam for various angles of incidence of the original beam. The multiple reflection of the beam at the surface layer of the workpiece enhances the precision of the determination and allows a single transmit-receive transducer to be used.  In the Fig. 2 embodiment a transducer 7, energized by pulses or wave-trains of regulable length and frequency, is coupled to recorder or oscilloscope and is used to determine the critical angle of incidence of an ultrasonic beam for production of surface waves in the workpiece. The transducer is spring-urged against a semicylindrical coupling block 8 of polymethyl methacrylate, and is guided at 52, 54 for circumferential movement over the block. The flat surface of block 8 is coupled to the workpiece and the curved surface provides the other reflective surface. The transducer beam is directed along a radius of the block, and its orientation can be read off using scale 55. An oil or grease film is used as a couplant between block 8 and the transducer and workpiece. Alternatively a deformable chamber containing water or oil couples the block to the workpiece. In alternative versions of the coupling block part of its lower surface is curved (Fig. 4, not shown) or first and second parts of the block have different respective radii of curvature (Figs. 5 and 6, not shown).
Patent GB-1285943-A (GB)
Title: Photographic camera
Inventor: HARVEY DONALD MALCOLM
IPC: G03B17/42
Filed: 1969-08-22
Abstract: 1285943 Film advancing mechanism EASTMAN KODAK CO 22 Aug 1969 [23 Aug 1968] 41991/69 Heading G2A A camera in which an electric motor advances across the exposure aperture of a film strip having coded indicia has sensing means responsive to the coded indicia controlling the motor, so that when, according to the indicia, a full film frame has been advanced, the motor is de-energized and braked. As shown in Fig. 1, the film strip 12 winds across from supply spool 11 to take-up spool 2 under the action of the electric motor 1 energized by a battery 10. The film has indicator perforations 4, spaced apart the distance of one frame. Fixed to the camera housing are spring arms 13, 14, having respective contacts 6, 9 at their free ends. A further spring arm 5 is normally biased downwards so when an extension pawl 3 enters a perforation 4, arm 5 is biased into contact with contact 6. Fig. 1 shows the mechanism just prior to completion of the exposure, the motor being shorted and the film stationary. After completion of the exposure a cam 7 is rotated anti-clockwise, lifting arm 5 from contact 6 to contact 9 Fig. 2 (not shown) and bringing pawl 3 out of the perforation 4. The battery is now in series with the motor, which is energized to drive spool 2 and transport the film. When the shutter is set, pawl 7 rotates clockwise, so disengaging from arm 5, which is still maintained against contact 9 since pawl 3 rests on the surface of the moving film 12. It enters the next perforation 4 on aligning with it, so that the position of Fig. 1 is reached again and the motor is braked and the film transport stopped. In the arrangement of Fig. 5 the indicia are in the form of a conductive stripe 16, having an additional coated area 17 and an uncoated area 15. A series of contacts 3<SP>1</SP>, 6<SP>1</SP>, 9<SP>1</SP> and 21 are arranged so that the areas 15 and 17 act as means for controlling the motor to act in the same way as in the Fig. 1 arrangement.
Patent GB-1525560-A (GB)
Title: Vehicle or carriage mounted materials transporting machines
IPC: E21D9/12
Filed: 1974-09-27
Abstract: 1525560 Material handling machines DOBSON PARK INDUSTRIES Ltd 25 Sept 1975 [27 Sept 1674] 42086/74 Heading B8H  A material handling machine comprises a telescopic boom 15, 15a carrying a bucket 19 and pivotally mounted on a carriage 10, the boom being pivotable about a vertical axis 16, between limits provided by diverging side walls 14a of a yoke 14, and a horizontal axis 13. A ram 23 for pivotally moving the boom about the horizontal axis 13 may be connected to the yoke 14 either in front of or behind the axis 13. The material handling machine may be used with a rock breaker tool and may comprise a pair of boom, each boom having either a forwardly or rearwardly and/or a laterally pivotable bucket. The boom may be stored under the chassis of the vehicle 10 by removing pivot pins 27 and/or 28, disconnecting pivot pin 16 from the yoke 14, extending ram 17, 18 rearwardly to bring a link 29 coupled with the pin 16 into a position for connection to a lug 30 on the carriage, and retracting ram 17, 18 to retract the boom bodily into the stored position.
Patent GB-1408389-A (GB)
Title: Electric kettles
IPC: H05B3/06
Filed: 1972-09-11
Abstract: 1408389 Immersion heaters RUSSELL HOBBS Ltd 11 Sept 1972 42156/72 Heading H5H An immersion heater is secured in an aperture or apertures 15 of a container 14 by the provision of a mounting plate 18 secured to the element sheath 17, e.g. by brazing, a deformable annular seal 24, e.g. a rubber grommet, for each aperture 15, which bears against the inside of the container, a nut(s) 23 secured on the end(s) of the element and arranged to compress the seal(s) 24 between the plate 18 and the container 14 and stop means co-operating with the nut(s) 23 to limit the approach of the nut(s) 23 to the mounting plate 18 and thus prevent plastic deformation of the sealing member(s) 24. As shown, the stop means comprise for each aperture 15 a cylindrical portion 18<SP>1</SP> pushed out of the plate 18 to extend into aperture 15 and co-operate with a cylindrical portion 18a<SP>1</SP> of metal plate 18a on the outside of the container. An earthing plate 22 mounted on metal plate 18a is engaged by the nut(s) 23. The stop means may be in the form of a cylinder extending through an aperture 15 between nut 23 and plate 18. The arrangement may be used for mounting the head of a heating element in a single aperture, the nut being mounted on the outer end of the head. Specifications 1,408,390 and 1,408,388 are referred to.
Patent GB-915863-A (GB)
Title: Improvements relating to bolted or like joints
IPC: F16B33/00
Filed: 1958-12-31
Abstract: 915,863. Bolted and riveted joints. HAMILTON, A. M. March 31, 1960 [Dec. 31, 1958], No. 42216/58. Class 83 (4). [Also in Group XXV] A joint between metal members 1 . . . 3 gripped together by a device, e.g. a bolt 4 and nut 6, comprises a plastic or pasty matrix, adhesive or filling material which subsequently hardens or sets, interposed between one or more of the members and a part or parts of the device, the material filling the clearance spaces around the device and emerging at the end of the joint opposite the end at which it is inserted. The material may be applied by a pressure gun to an axial bore 15 terminating in one or more radial holes, or be confined in a telescopic washer 7, 8 which is squeezed as the nut is tightened until flattened to aid in locking the nut and bolt. A grooved washer 11 or grooves in the bearing face of the bolt head or nut permits the material to show. The material may consist of a cold-setting epoxy resin, a mixture of resins with or without fillers, a cement, e.g. Portland cement, or a two-part resin each part being contained in one component of the washer 7, 8 so as to be mixed when the nut is tightened. The material may be coloured and contain gritty material, e.g. fine sand or metal dust. To enable the material to penetrate between the contacting surfaces of the members, radial spoked or grooved washers, or a spiral or wire may be positioned between the surfaces. Alternatively, depressions or elevations may be formed on said surfaces. In a modification, the joint is a cold-riveted joint. Specifications 832,513 and 887,161 are referred to.
Patent GB-1366884-A (GB)
Title: Means for securing together link members
IPC: F16G15/02
Filed: 1970-09-03
Abstract: 1366884 Cotter pins PARSONS CHAIN CO Ltd 23 Nov 1971 [3 Sept 1970] 42225/70 Heading F2H A cottering device for securing, for example the clevis H of a hook to a link C of a chain comprises two or more segments 1, 2, at least one having a radially outwardly extending projection 3, and a separate cotter pin 5 for urging the segments apart. In use, the segments 1, 2 are urged into gripping engagement at their ends with holes in the clevis and the or each projection which is located in a recses in the clevis defines a groove for engaging the link C. The cotter pin 5 is of flat rectangular cross-  section and has a slit at each end whereby the pin can be deformed to provide portions extending in opposite directions at each end when positioned between the segments 1, 2, the segments 1, 2 being suitably chamfered at 7 to accommodate the deformed portions of the pin.
Patent GB-879852-A (GB)
Title: Improvements in or relating to communication systems
IPC: H04B3/20
Filed: 1959-12-14
Abstract: 879,852. Two-way transmission. WESTERN ELECTRIC CO. Inc. Dec. 14, 1959 [Dec. 23, 1958], No. 42419/59. Class 40 (4). In an arrangement in which a source of speech signals is connected to a transmitting channel in response to signals from said source, means is provided responsive to signals in a preselected amplitude range for increasing the sensitivity of the connecting means, said sensitivity increasing means being disabled in response to signals of above a preselected amplitude being present on a receive line. The arrangement is used in conjunction with a TAS1 system of the type described in Specification 845,174 in order to minimize the channel holding time in the case of high level talkers. As shown the incoming line is connected via hybrid H 1  and echo suppressor ES to transmitting and receiving lines L 1 , R. Signals from the transmitting line, after amplification, are split by the hybrid H 2  whose lower arm feeds a detector E sensitive to signals above -41 dB. The upper arm of the hybrid feeds clipper A, B which clip at - 30 dB. and - 20 dB. respectively. The outputs of A and B feed peak-to-peak detectors C, D whose outputs are applied to difference circuit CC. If the incoming signal level is higher than - 20 dB. the outputs of C and D are equal and CC has no output so that switch CD is not operated and 10 dB. pad remains in circuit so that the effective threshold for detector E is - 31 dB. If the signal level lies between - 20 dB. and - 30 dB. the outputs of C and D are different and CC produces an output to operate switch CD to cut out the pad LP thereby increasing the threshold of the detector E to - 41 dB. The output of detector E operates a common control circuit TCC to cause the TAS1 switch to connect line L1 to one of the outgoing channels. The switching circuit CD is disabled by an incoming signal over lead R if the latter exceeds a level of - 35 dB. This prevents operation of the speech detector by echoes round the hybrid (assumed to introduce a 7 dB. loss) from received signals too weak to operate the echo suppressor at a time when the loss pad LP is switched out, or by strong signals received during the time delay in the operation of the echo suppressor. The clipper A may consist of a shunt pair of opposed diodes, and B of an identical circuit preceded by a 10 dB. pad. The output from the device CC may be given a long hangover time e.g. 10 seconds, by making use of a slow release relay. Specification 245,554 also is referred to.
Patent GB-893459-A (GB)
Title: Sintered plate for alkaline storage batteries
Inventor: MOULTON JOSEPH DONALD
IPC: H01M4/80
Filed: 1960-12-09
Abstract: Sintered porous nickel plates for use as carriers of the active material of battery electrodes are formed by sintering in hydrogen a powder mixture of 75% to 98% of nickel and 25% to 2% of polyvinyl alcohol and/or polyvinylpyrrolidone.  The mixture may also include nickel oxide and the sintering is at 1500 DEG F. for 30 minutes or 1700 DEG F. for 10 minutes, the sintered plate having a porosity of 87% to 90%.  The powder mixture may be spread in a wire mesh or screen prior to sintering.
Patent GB-1398366-A (GB)
Title: Carburetor intake air flow measuring device
IPC: F02M19/01
Filed: 1973-08-10
Abstract: 1398366 Measuring carburetter air intake NISSAN MOTOR CO Ltd 10 Sept 1973 [13 Sept 1972] 42491/73 Heading G1N The mass rate of flow of air into the carburetter of an I.C. engine is determined by measuring electrically the ambient pressure, the ambient temperature and the pressure difference between the carburetter Venturi and the atmosphere, and combining these signals in a known relationship to produce a signal representing the flow-rate. In one embodiment Fig. 1, the ambient pressure signal is obtained by transducer 20, the ambient temperature signal by thermistor 19 and the differential pressure signal by transducer 30 comprising a bellows 35, fed at 36 with the pressure P 2  at the carburetter Venturi 14, inside a sealed housing 31 fed with the ambient pressure P 1  at an upstream point 34. The bellows controls the slider of a potentiometer 38 to produce the pressure difference signal. These three signals are combined as required in a computer 40 to determine the mass rate of flow of air into the carburetter 10. In another embodiment Fig. 2 for use with a two-barrel carburetter 50 comprising a first and second Venturi 51, 52 in a first and second induction passageway 57, 59, the primary throttle valve 53 controlling a secondary throttle valve 54 via a diaphragm unit 55, the total differential pressure is sensed by a housing 65, fed with ambient pressure P' 1  at 67, containing a first bellows 69 fed with the pressure P' 2  at the first Venturi 51 and a second bellows 71 fed with the pressure P 2 " at the second Venturi 52. The bellows are attached to rods, 69a, 71a associated with a Piezo-electric element 75 whose output signal is proportional to the total differential pressure. Alternatively the differential pressure may be measured for each barrel separately and combined in computer 80.
Patent GB-986439-A (GB)
Title: Constructional part for models or toy building sets
IPC: A63H33/10
Filed: 1962-11-09
Abstract: 986,439. Constructional toys. F. LITZKA. Nov. 9, 1962 [Nov. 15, 1961], No. 42499/62. Heading A6S. A constructional part for toy building sets, comprises a reproduction of an apertured girder 2, Fig. 1, in a plastics material, which may be cut down the middle and curved to form parts of buildings, bridge spans, frame members of ships &c. The resulting beams may be held in curved shape by links 8, Fig. 6, or by a curved channel element 3c, Fig. 9. Fig. 12 illustrates the construction of a bridge using links 13. A number of connecting attachments are shown with reference to Figs. 17, 18, 23 and 25.
Patent GB-1241056-A (GB)
Title: Process for drying gases
IPC: C07C1/00
Filed: 1968-09-09
Abstract: 1,241,056. Controlling humidity of gases. ELECTRO-QUIMICA DE FLIX S.A. 9 Sept., 1968 [9 Sept., 1967], No. 42801/68. Heading B1R. [Also in Division C5] In a process for reducing the water content of a gas to less than 100 mg/m<SP>3</SP> the gas is washed with an aqueous inorganic salt solution inert to the gas under the process conditions at a low temperature and possibly at a low pressure. The inorganic salt solution may be a solution of sodium or calcium chloride or sodium or ammonium nitrate. The temperature employed may be between -40‹ and -50‹C. In an example acetylene was washed with a 30% solution of calcium chloride at -50‹C in four packed towers arranged in series.
Patent GB-1127777-A (GB)
Title: Improvements in or relating to cyclic anhydrides
Inventor: MERIJAN ASHOT
IPC: C07C55/02
Filed: 1965-10-08
Abstract: 1,127,777. Substituted cyclic anhydrides. GENERAL ANILINE & FILM CORP. 8 Oct., 1965 [9 Oct., 1964], No. 42878/65. Heading C2C. Alkylated cyclic anhydrides are prepared by heating from 0À01-10 moles of an α-olefin of 2-100 C atoms, or a chloro-fluoro-α-olefin or fluoro-α-olefin of 2 C atoms with one mole of a cyclic anhydride of formula wherein R represents a single bond joining the two CH 2  groups, or is an -O-, or -CH 2 - group, at 100-200‹ C. for 3-60 hours in the presence of 0À02-0À3 moles of an organic peroxide per mole of α-olefin used, using elevated pressure with the 2-6 C olefins or the haloolefins. The products are claimed per se when they leave the formula wherein R is -O- or -CH 2 -, and R<SP>1</SP> is the residue of the added olefin.
Patent GB-1322511-A (GB)
Title: Semiconductors
IPC: H01L29/00
Filed: 1970-09-09
Abstract: 1322511 Semi-conductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 9 Sept 1970 [12 Sept 1969] 43149/70 Heading H1K The N-type source zone 34 of an IGFET is electrically connected to the P-type substrate region 33 of the device both at the lower surface of the substrate, e.g. via an A1 wire 50 and Au-plated Fe-Ni-Co alloy base plate 44, and at its upper surface, by a metal layer 41, e.g. of Al. The device may have two gate electrodes 37, 48, which, with the source electrode 41 and drain electrode 39, define a complex interdigitated configuration of A1 layers (Fig. 2, not shown). The A1 wire 50 may be replaced by a vapour deposited metal strip overlying an insulating layer on the semi-conductor substrate 33. The base plate 44 may be soldered to the substrate 33 by a layer 43 of Au. To improve the contact between the layer 41 and the substrate region 33 a P+ diffusion may be carried out adjacent the shorted source-substrate junction 42. The substrate 33 may be of Si, Ge or a III-V compound, while the insulation 66 may be of silicon oxide, silicon nitride and/or aluminium oxide.
Patent GB-1528009-A (GB)
Title: Apparatus for producing labels for containers
IPC: B65C3/20
Filed: 1975-10-21
Abstract: 1528009 Labelling OWENS-ILLINOIS Inc 21 Oct 1975 [22 Nov 1974] 43170/76 Divided out of 1528004 Heading B8F [Also in Divisions B4-B5] The subject matter is as disclosed in Specification 1,528,004 but the claims relate to a mandrel on which a label blank is held by suction, the ends of the blank being heated by hot air and lapped to form a seam.