baber/WOPTO huggingface dataset:
Patent GB-1331879-A (GB)
Title: Data exchange systems
IPC: F02B3/06
Filed: 1971-08-05
Abstract: 1331879 Automatic exchange systems SIEMENS AG 5 Aug 1971 [12 Aug 1970 5 Nov 1970] 36756/71 Heading H4K [Also in Division G4] In a videophone system in which subscribers are connectible to a computer for data processing purposes, each substation incorporates a mounting for receiving a data carrier, e.g. a punched card, which is scannable by the camera of the videophone and means are provided for permitting a representation of transmitted data to be shown on the videophone display tube. The mounting and/or the data carrier are provided with indicia for marking the beginning and end of the useful (in respect of data that is) scanning area of the camera. The indicia may consist of black bars which define the long sides of an 80 column punched card when this is scanned column by column (Fig. 1, not shown); of three completely punched columns of the card, e.g. along its two short sides and a column midway therebetween when it is scanned row-by-row; or, of a completely punched column and row, e.g. along its top and left hand edges also when it is scanned row-by-row (Figs. 3 and 4, not shown). In other arrangements the data carrier may comprise a lamp panel which could consist of the illuminable keys of a data key sender or of n lamps that are selectively illuminated m at a time. In the latter arrangements, the carrier is preferably blanked-off during a change of data (Figs. 5 and 6, not shown). System.-The carrier LK is scanned by camera AK and the resultant video signal transmitted to a synch detector AT of a unit LKZ that may be provided individually for each subscriber A or in common for a plurality of data transmitting subscribers. The detector starts a scanning pulse generator TG in response to the detection of signals representative of the indicia so that useful data may be inserted in magnetic core stores SP of an image converter BU. Prior to storage, checks are made that the data is error free, e.g. by means of a last look process which determines the persistance of data from scanning line to scanning line, and in addition it is recorded from its original 12 bit coding (in the case of a punched card) into an 8 bit code. After the data in store has been further checked, e.g. by comparising it with the result of a second scanning of the carrier LK by camera AK, 't is transmitted on to the picture tube B of the videophone in the form of an alphanumeric display. If the subscriber is satisfied with the authenticity of the data he then causes it to be sent to the computer DVA by actuating a key that causes store SP to be read out. Incoming data from the computer is also passed through the image converter BU so that it may be displayed.
Patent GB-950975-A (GB)
Title: Production of detergent alkylate
Inventor: MCLEAN ANDREW
IPC: C07C17/10
Filed: 1961-10-13
Abstract: Detergent alkylate is obtained by alkylating benzene in the presence of hydrogen fluoride with olefins obtained by chlorinating C10-C17 paraffins containing at least 95% normal paraffins to effect not more than 35% conversion followed by dehydrochlorination.  The feed preferably contains paraffins differing in chain length by not more than 5 carbon atoms and is chlorinated in the liquid phase at 0-200 DEG  C. in the presence of a peroxide, U.V. light or cobalt - 60. Dehydrochlorination is effected in the gaseous phase at 150-500 DEG C. and not more than 2 atmospheres without a catalyst or in the presence of silica-alumina previously heated to above 750 DEG C. or of boron phosphate. Alternatively liquid phase is used at up to 250 DEG  C. using a catalyst or aqueous alkali. Unconverted paraffins act as diluent or other diluents may be added.  After conventional alkylation distillation separates benzene and unreacted paraffins for recycle, detergent alkylate and heavy alkylate.  When using feeds differing in chain length by only 1 or 2 carbon atoms, the chlorinated product may be separated from unreacted hydrocarbons by distillation before the dehydrochlorination. Specifications 505,898 and 950,976 are referred to.
Patent GB-1070874-A (GB)
Title: Lightweight constructional elements
IPC: B29C70/66
Filed: 1964-09-10
Abstract: Lightweight structures are made by binding a plurality of hollow spheres together with an adhesive or binder in a mould, without the application of pressure.  The products may be laminated by covering either or both surfaces with panels.  The binder may form a foamed matrix filling the interstices between the spheres and may be polyurethane or polystyrene foam. The mould may have vent holes for the escape of excess foam.  Various sizes of spheres may be used and they may be, for example, plastic table tennis balls or thin wall metal spheres. Where laminated structures having two surface panels are being made, a plurality of tubular spacers extending from one panel to the other may be incorporated.  The binder may be a foamed resin or other adhesive filling the entire space between the spheres or merely an adhesive such as a non-foaming resin, joining the spheres at their points of contact and leaving spaces elsewhere.  In Fig. 12 (not shown) to a mould having apertured sidewall (6) and base-board (7) is added a foaming mixture which has not yet begun to foam or is not yet fully foamed. The top board (9) is put on (Fig. 13, not shown) and excess foam is expressed through the apertures (10) in the sidewalls.  In Fig. 17 (not shown) the foaming mixture is squeezed through apertures (15) in mould member (13) by ram (14).  In Fig. 18 (not shown), a previously prepared mixture of spheres and binder (8) is poured into a concave mould (16) containing a layer of spheres (17).  The mould parts may be permanent laminae or else releasable parts previously coated with, for example, a silicone resin.  The laminae may be of a light metal, wood or plastic.  The products are useful in aircraft construction.
Patent GB-1494989-A (GB)
Title: Decaffeination of green coffee
IPC: A23F5/20
Filed: 1976-09-07
Abstract: 1494989 Decaffeinating coffee GENERAL FOODS CORP 7 Sept 1976 [18 Sept 1975] 37023/76 Heading A2B Moistened green coffee is decaffeinated by contacting either with diethyl succinate or with a aqueous extract of green coffee which has been decaffeinated using diethyl succinate. The contacting is suitably by liquid/liquid contact on a continuous counter-current basis.
Patent GB-336154-A (GB)
Title: Improvements in automatic couplings for railway and the like vehicles
IPC: B61G3/04
Filed: 1929-12-03
Abstract: 336,154. Bogdanov, V. N. Dec. 3, 1929. Couplings, automatic; convertible to non- automatic.-In an automatic coupling for railway and like vehicles each coupler-head 1 is formed with a forward projecting part 2 adapted to enter a recessed part of the opposed head, and a rotary locking-member 5 is arranged to slide on an inclined seating 8 on the projection 2, the locking-member on one head being pushed or swivelled aside by the projection on the other head as the couplers approach each other so as to ride up the inclines 8, and subsequently falling back again to interlock with the other locking- member as shown in Fig. 7. In the construction shown in Figs. 3, 5 and 8 the main portion of the locking-member 5 is connected by a neck 9 with projections 10 which engage undercut grooves in the recessed or hollow interior part of the projection 2 by which the inclined seatings 8 are formed. The lower part of the locking- member 5 is provided with a lug 6 connected with suitable means whereby a shunter may unlock the coupling from the side of the vehicle, for example, a releasing member 7 may be connected to a counterweighted lever 11, which is so loaded as to assist in the locking action of the coupling. In a modification, Figs. 9 and 11, the locking- member 5 is formed with spaced flanges 16 having lugs 17 engaging grooves 19 formed in external inclines 18 on the coupler-heads 1. In either construction the projection 2 may be provided with an aperture 15 adapted to receive a bolt 14 over which the link 13 of a screw coupling may be placed.
Patent GB-1240297-A (GB)
Title: Improvements in or relating to a timepiece adjusting mechanism
IPC: G04B37/10
Filed: 1968-08-02
Abstract: 1,240,297. Timepieces. LA NATIONALE S.A. Aug. 2, 1968 [Aug. 22, 1967], No. 37124/68. Heading G3T. A watertight winding stem for a timepiece comprises a tube 6, a crown 1 having a recess 2 and being movable to a neutral position in which the crown is tightened on the tube on elastic sealing member 8 and stop means for determining the neutral position and preventing over tightening of the crown. In the neutral position a screw-threaded flange 7 engages a screw-threaded collar 12 secured to the crown 1. A further seal 9 is also provided to ensure watertightness of the stem in the winding position shown in the right hand side of the figure. When the crown is screwed on to the tube 6 the seal 8 engages a conical surface 10 of the tube and the seal 9 is radially expanded by compression between a washer 11 and a flange 13 to engage the cylindrical surfaces of the recess 2 and the tube 6. Overtightening of the crown is prevented by the top of the tube 6 engaging the roof of the crown. Modifications including only a single seal are described and several modifications of the stop means are also described.
Patent GB-621081-A (GB)
Title: Improvements in or relating to high frequency electric induction heating apparatus
IPC: H05B6/36
Filed: 1946-12-17
Abstract: 621,081. Induction heating. GENERAL ELECTRIC CO., Ltd., HUMBER, Ltd., NELSON, H. M., and THORLEY, T. Dec. 17, 1946, No. 37130. [Class 39(iii)] A concentator intended to provide uniform heating of a workpiece comprises a split ring or cylinder 4 connected to the secondary 2 of a transformer by conduits 5, 6. The concentator 4 is so dimensioned as to provide a greater longitudinal dimension l 2  opposite the slit, as shown in Fig. 2. In this manner the flux is spread out opposite the slit and reduced to the magnitude of the flux adjacent the slit. In a modification, the slit is inclined to the axis of the concentator.
Patent GB-955052-A (GB)
Title: Improvements in or relating to electric switches
Inventor: SANDELL ORLA GEORG MIKAEL
IPC: H01H19/58
Filed: 1962-10-02
Abstract: 955,052. Switch contacts. PRODUKTIONSAKTIESELSKABET TOROTOR. Oct. 2, 1962, No. 37214/62. Heading H2B. An electric switch comprises a disc made up of three layers of insulating material 1, 2 and 3, and a bearing plate 5 of a resilient insulating material with slots 7 and 8 and a recess 6 into which the disc engages. The disc is mounted in the plate 5 by pulling the two halves of the plate apart, the strip 9 acting as a hinge so that layers 1 and 3 with contacts 4 lie either side of the plate 5. Contact springs 10, secured to the strip 9 engage contacts 4. The bearing plate 5 may alternatively comprise two separate halves pivoted together and fastened across the slot 7 after the introduction of the disc.
Patent GB-1467189-A (GB)
Title: Sealing closure for containers
IPC: B65D51/20
Filed: 1974-08-27
Abstract: 1467189 Bushes and plugs BARREL FRESH SERVICE AG 27 Aug 1974 [28 Aug 1973] 37327/74 Heading B8T A closure for a container, e.g. for pressurized liquid, comprises an axially bored plug body 1 having a frusto-conically tapered outer side 5, a flange 4 which in use bears on the container top, a peripheral recess 6 between the flange 4 and side 5 and two spaced sealing rings 3, 3<SP>1</SP> at the inner margins of the bore 2, an ejectable sealing cap 9 being provided to fit in the lower opening of the bore, and a removable cap 12 being provided to close the upper opening of the bore. The sealing rings 3, 3<SP>1</SP> present toroidal surfaces to the bore 2, the radius of curvature of the upper ring 3 being greater than that of the lower ring 31. The ejectable cap 9 which is pushed into the container on insertion of a breaching spike comprises a flat top 10<SP>1</SP> with a bevelled edge 10<SP>11</SP> merging into a circular section groove 11 which engages the lower ring 3<SP>1</SP>, and a radial flange 10 which seals against the lower surface 5<SP>1</SP> of the body 1. The removable cap 12 closes the bore 2 to prevent ingress of dust, and comprises a circular top 14 with a depending ring 13 the external diameter of which ring 13 is greater than the internal diameter of the ring 3 whereby a seal is formed when the cap 12 is pushed into the bore. A vent hole 16 opening into a transverse groove 17 is provided for escape of air during insertion. A pull ring 15 is provided on the cap 12 for ease of removal prior to spiking of the container. The plug body 1 is preferably formed of rubber and the caps 9 and 12 of plastics material, e.g. polyethylene.
Patent GB-1018089-A (GB)
Title: Improvements in casings for blasting cartridges used in petroleum bore holes
IPC: F42B3/28
Filed: 1962-10-02
Abstract: A casing is made by compressing and sintering metallic powder and subjecting it to thermo-chemical treatment involving the diffusion of gases.  The casing, for holding a blasting charge, comprises compressed and sintered pulverulent iron oxidized at 500  DEG C., reduced in ahydrogen atmosphere at 1040  DEG C. and case hardened in a carbon monoxide atmosphere at 900  DEG C.  Other embodiments involve depthwise oxidation at 500  DEG C. or impregnation with 26% by weight of copper during the hydrogen treatment.  The casings may additionally be impregnated with a plastics material. Reference is directed by the Comptroller to Specification 866,931.
Patent GB-771670-A (GB)
Title: Improvements in or relating to coaxial transmission lines for high frequency electromagnetic waves
IPC: H01P3/18
Filed: 1955-12-30
Abstract: 771,670. High-frequency cables. WESTERN ELECTRIC CO., Inc. Dec. 30, 1955 [Dec. 31, 1954], No. 37430/55. Class 36. In a high-frequency transmission line comprising three coaxial conducting members 1, 2, 3, separated by insulation 4, 5, the intermediate member 2 has a thickness of less than one " skin-depth " at the predetermined operating frequency, the insulating materials 4, 5 have different wave-propagation properties and the nature of the insulating materials, the thicknesses of the members 1, 3 and the distances between the members 1, 2, 3 are so chosen that. the line has a relatively low power loss and a more uniform attenuation over a range of operating frequencies including the predetermined frequency than that of a comparable twoconductor cable of like external diameter operating over the same frequency range. The insulating material 4, 5 may have different dielectric constants and/or different permeabilities and may comprise polyethylene and polystyrene respectively. The member 2 may be nearer to the member 1 than it is to the member 3 and the member 1 may be solid or hollow. Where the member 1 is hollow, the thickness both of this member and of the member 3 may be between one and two " skin-depths ", the thickness of the member 2 being between half and one " skindepth ". The members 1 and 3 may comprise coatings of the required thickness of a relatively highly conducting material such as copper on the outer and inner surfaces respectively of inner and outer cylindrical supporting members of less conductive material such as iron. The " skin-depth " # is given by: where f is the operating frequency, Á the permeability of the conductor and g its conductivity. The Specification indicates the manner in which the optimum values for the different variables may be calculated. Specification 715,359 is referred to.
Patent GB-326266-A (GB)
Title: Safety clips for slated or tiled roofs
IPC: E04D1/34
Filed: 1928-12-19
Abstract: 326,266. Cameron, H. G. Dec. 19, 1928. Roofs, slating.-A clip for loose slates consists of a vertical member c with one or two flanges a inserted beneath lower slates b, and with one or a pair of oblique lateral wings d, the tips e of which at or near their extreme, points bear frictionally on the slate b and wedge thereon when the loose upper slate h tends to move downwards. The wings may be integral with the clip, or they may be hinged along the junction, or be pivoted as shown in Fig. 6, or they may slide in the fold of the clip by a pin-and-slot connection. Extra gripping points o, p, and a nib q may be provided.
Patent GB-787938-A (GB)
Title: Improvements in or relating to the removal of iron impurities from aqueous solutionsof sodium carbonate and bicarbonate
IPC: C01D7/26
Filed: 1955-12-30
Abstract: Iron impurities, for example in the form of colloidal hydroxide or ferrite or ferrate, are removed from an aqueous solution of sodium carbonate and bicarbonate by the addition of ammonia or an alkali metal hydroxide in an amount greater than that equivalent to the sodium bicarbonate.  The aqueous solution may be a complex liquor bled off from a cyclic process for the production of sodium sesquicarbonate.  Alkali metal hydroxides specified are those of lithium, sodium and potassium.  The temperature may be in the range room temperature to 200 DEG  F.  Mild agitation may be employed. The reaction time may be 20 mins.  A coagulant and filter acid, e.g. zinc oxide, lead oxide, magnesium chloride, calcium chloride or barium carbonate, may be employed.  0.1-1 per cent of a saturated solution of calcium chloride is suitable.  The coagulant and filter aid may be added 2 or more minutes before the metal sulphide.
Patent GB-1175286-A (GB)
Title: Improvements in and relating to the Extraction of Gases from Metal Samples.
IPC: G01N33/20
Filed: 1967-08-16
Abstract: 1,175,286. Testing molten metal. BALZERS PATENT-UND BETEILIGUNGS A.G. Aug.16, 1967 [Sept.26, 1966], No.37589/67. Heading C7D. In the determination of the gas content of metal by fusion extraction there is added to the sample, when it consists of or contains iron, nickel or cobalt, or in the case of a sample not containing those elements, to a preliminary melt of iron, nickel or cobalt in which the sample is subsequently dissolved, one of the elements sulphur, selenium, tellurium, arsenic, antimony or bismuth.
Patent GB-624024-A (GB)
Title: Electromagnetic driving system for transporting bodies over a pre-determined path and apparatus for use in such a system
IPC: H02K41/025
Filed: 1946-12-20
Abstract: 624,024. Electric traction. MAGGI, E. Dec. 20, 1946, No. 37596. Convention date, Dec. 22, 1945. [Class 104 (iii)] In an electromagnetic induction traction system applicable to railways, conveyer systems or the catapulting of aircraft, wherein polyphase current is supplied to a stator system along the track to give a travelling magnetic field which acts upon an unwound armature member on the vehicle, the armature is constituted by a continuous sole plate of magnetic material covered with a plate of conducting material, the conducting plate being arranged on the air-gap side of the magnetic plate. A laminated tore 10 Figs. 1 and 2 extending along the length of the crack rails 14-15 has polyphase windings C which set up a travelling magnetic field to propel a wheeled vehicle 18 by acting upon a sole plate comprising a plate of magnetic material 26 covered by a plate of electrically conducting non-magnetic material 27 facing towards the stator system. The windings C may be wound around the core into individual coils to reduce the total length of conductor. The plate 27 may be constituted by the vehicle body 27a, Fig. 4, the magnetic plate 26a being fixed to a vehicle wall parallel to the air gap 24a. To maintain this air gap constant, the vehicle has wheels 20a, 22a, 30 engaging non-magnetic rails 14a, 15a, 32. In a modification, Fig. 5 (not shown), the vehicle body is. of magnetic material and carries an external plate of non-magnetic conducting material. The power consumption is reduced by providing the non- magnetic member 27, Fig. 6, with transversal fins 31 which enter corresponding slots in the magnetic member 26. The track may be sectionalized, power switches operated by the vehicle being provided.
Patent GB-1185064-A (GB)
Title: Apparatus for the Testing and Treatment of Hearing Deficiencies
Inventor: DEMAREE MICHAEL STEPHEN
IPC: A61B5/12
Filed: 1967-08-16
Abstract: 1,185,064. Testing and treating hearing; amplifying circuits. M. S. DEMAREE. 16 Aug., 1967 [31 Oct., 1966], No. 37724/67. Headings H3W and H4J. In apparatus for testing and treating a hearing defect, a plurality of sound signals having distinct frequencies within the audio frequency range is produced sequentially, the magnitude of each of the plurality of sound signals is adjusted so that the patient has the sensation of substantially normal hearing, and the apparatus then provides for mixing signals over the entire audio frequency range. The apparatus (Fig. 4) comprises a cabinet 10 having a well 11 for storing a microphone 12 and earphones 13. A front panel 14 includes a volume control 15, an attenuator 16, a calibrator 17, a power switch 18, a meter 19 indicating the level of the incoming signal and attenuator controls 20 mounted to move in slots 21. Horizontal lines 22 indicate in dB the attentuation in each control 20, maximum attenuation being provided in the lowest position. A key card 23 (Fig. 1) has nine frequency values at which the patient's minimum sound perception level is determined and a graph is plotted by dots in boxes at frequency values of 250, 500 . . . &c., c/s. A curve (25), Fig. 2 (not shown) is drawn connecting the dots and the key card 23 is cut along the curve (25). The lower portion (27) of the key card 23 is inserted in a holder 31 of the apparatus and the attentuator controls 20 are brought downwardly until they engage the upper surface (29) of the card portion (27), thereby setting the attentuator controls 20. The patient then hears speech and music through the earphones 13 substantially normally. The attentuator 16 and volume control 15 permit the sound to reach a sufficient level to allow persons formerly considered stone deaf to hear adequately. Circuit.-Seven band pass filters 100 (Fig. 5) have centre frequencies set approximately one octave apart at 250 c/s., 500 c/s. . . . &c. A microphone 112 is coupled into a pre-amplifier 111, the output of which is connected to a master volume control 115. A VU meter 119 is connected to the output of an amplifier 117, and the output of amplifier 117 connects to one terminal of a stepped attentuator 116, the other terminal of which is connected to a common input line 118. Resistors 121 couple to the input terminals 122 of the filters 100. Further resistors 123 provide bias for the filters 100. The output of each filter 100 couples to a voltage divider 120 and this connects with the attentuator control 20 (Fig. 4). The voltage divider outputs are coupled to a power amplifier 125, the output of which is coupled directly to a headphone jack 113. A power supply 114 is provided.
Patent GB-811401-A (GB)
Title: Improvements in or relating to devices for calibrating equipment for detecting vapour leaks
IPC: G01M3/20
Filed: 1956-12-12
Abstract: <PICT:0811401/III/1> A device for calibrating equipment for detecting vapour leaks comprises an enclosure 1 closed by a plate 5 of a material through which a volatile agent to be tested and contained in the enclosure can diffuse.  The apparatus consists of a container 1 connected to a capillary tube 2, and closed by the plate 5 which is covered by a piece of sintered bronze 6 held in place by a cap 7. The member 6 is used to prevent bursting and distortion of the plate 5 and has a porosity greater than that plate, thus having no effect on the working of the device.  A hood 10 is fitted, having an opening 13, for the insertion of the probe of the leak-detecting apparatus being tested, and outlets 13a to prevent an accumulation of volatile agent in the hood.  In operation the container 1 is evacuated and filled with a volatile agent by means of the tube 2.  It is then left to stand for several hundred hours until a steady state is reached, i.e. when the rate of flow of volatile agent through the plate 5 is constant.  The apparatus is then weighed and stood in a constant temperature enclosure.  It is reweighed later and thus the rate of escape of the volatile agent can be determined, and this is compared with the reading given by the apparatus being calibrated.