baber/WOPTO huggingface dataset:
Patent GB-890118-A (GB)
Title: Improvements in electrical switching circuits employing transistors
Inventor: BRINKER CARL SIEGMUND DEN
IPC: H03K19/09
Filed: 1958-08-28
Abstract: 890,118. Automatic exchange systems. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. Aug. 28, 1959 [Aug. 28, 1958], No. 27675/58. Class 40 (4). [Also in Groups XL (b) and XL (c)] In a distributer for associating a plurality of leads with a common output under the control of timing waveforms characteristic of the leads, each lead is connected to the emitter of a transistor to the base of which the corresponding timing waveform is connected, and the collectors are connected to a common lead. Fig. 1 shows a switching circuit for metering the subscriber's meter leads in a telephone system. It is assumed that the circuit deals with 100 lines divided into ten groups of 10 and that when metering is to take place for a particular subscriber the potential on his meter lead for example PI becomes mere positive. Timing pulse waveforms are applied to leads TB1 . . . TB10, the waveforms being positive-going and occurring at successive time periods so that the metering leads P1 . . . P10 are tested sequentially to produce a positive input to the buffer inverter stage BI to the input of which the other groups of 10 subscribers are also connected. The output of unit BI is rendered effective during a particular time period by means of an AND gate involving the timing waveform TA12. The negative-going gated output signal from unit BI may be utilized as required for instance to effect the addition of one unit to the registration on a magnetic drum in a position corresponding to that particular subscriber. In a P.B.X. system whereby the meter fees appropriate to a plurality of lines may be totalled and recorded against the first line of the group, the P lead of each such line is connected over a resistor such as R1 to the junction of rectifiers MR1, MR2 associated with the first line thus forming an OR gate. In the modification shown in Fig. 2, the input leads are connected to the emitter of PNP transistor T1 to form an OR gate the time pulse TB which is characteristic of the particular subscriber being applied to its base and the output taken from the collector to the buffer transistor stage T2 and inverter stage T3, the output from the collector of T3 being gated by timed pulse TA12. The collectors of as many as 100 similar transistor circuits may be applied to the same output point. In the modification shown in Fig. 3, each transistor T11, T12, T13 has a number of inputs applied to its emitter circuit while the different time pulses TB1 . . . TB3 and applied to the respective bases, the common output is applied to the base of a NPN transistor to produce an output signal at line O. The level of which is clamped by the diode D.
Patent GB-754184-A (GB)
Title: Improvements in and relating to metal binding strips for foldable box blanks
Inventor: KAMPER ANDREW MATHIS
IPC: B65D6/22
Filed: 1954-09-24
Abstract: 754,184. Spiked strips. NO-NAIL BOXES, Ltd. Sept. 24, 1954, No. 27698/54. Class 89 (2). [Also in Group XXII] Metal binding angular and flat strip members 5, 6, Fig. 2, for attachment to box blanks 1, 4, 11, &c. by means of clenched-over teeth 12, 13 in making foldable boxes of plywood, fibreboard, &c., as described in Specification 746,163, are made from flat strip metal. Central flat members 6, Fig. 3, with angular members 5 on each side are formed with pairs of mitres 24 on each side at the required bending points on the' angular members and with staggered attachment teeth 34, 35 to be bent at right angles. The strips which are parted off by a punch which forms tongues 19 at one end and slots 20 at the other for subsequent closure of the box lid 4. Stiffening ribs 23 may be formed near the edges.
Patent GB-451734-A (GB)
Title: Improvements in fire extinguishers
IPC: A62C11/00
Filed: 1935-10-08
Abstract: 451,734. Fire - extinguishers. MARS, M., Chatenay, Seine, France. Oct. 8, 1935, No. 27751. Convention date, Oct. 10, 1934. [Class 102 (i)] In a fire-extinguisher the pump bucket 10 has a rod 8 of large diameter, so that liquid is discharged through the nozzle 6 on the down stroke as well as on the up stroke. The rod is hollow and communicates through orifices 12 with the upper side of the bucket. Packing - rings are dispensed with, the bucket being formed with grooves 13, which collect sealing liquid. A perforation 14 in the pump barrel admits air to the container 1. Specifications 2726/14, 179,733, [both in Class 102 (i)], and 406,541 are referred to.
Patent GB-1517764-A (GB)
Title: Strain gauge transducers
IPC: G01L1/22
Filed: 1975-07-01
Abstract: 1517764 Weighing transducers HOTTINGER BALDWIN MEASUREMENTS Inc 1 July 1975 [1 July 1974] 27751/75 Heading GIN A weighing transducer comprises a cantilever beam 36, Fig. 4, carrying four strain gauges R1- R4 located symmetrically on opposite vertical faces and connected in a bridge network. The positions of the strain gauges relative to the neutral axis NA and/or their angular dispositions are selected by trial and error to be such that when a load is applied to the free end 40 the bending strain at each strain gauge is equal and opposite to the modification in shear strain due to bending, whereby the bridge output is directly proportional to shear strain only and therefore proportional to the load at 40 and independent of the point of application of the load along the beam. Various combinations of strain gauges capable of meeting the above requirements are shown.
Patent GB-746164-A (GB)
Title: Process for the manufacture of glass measuring instruments
Filed: 1954-09-27
Abstract: 746,164. Glass articles. FIRN, C. Sept. 27, 1954 [Sept. 29, 1953], No. 27774/54. Class 56 Coloured inscribed graduations or other inscriptions on glass measuring instruments are made permanent by first tempering the articles to just below the fusion point of the glass and then cutting the inscriptions, colouring them, and burning in the colour at about the same temperatures as those used during the tempering.
Patent GB-436559-A (GB)
Title: Improvements in or relating to internal-combustion engines of the liquid-fuel injection type
IPC: F02B19/08
Filed: 1934-09-28
Abstract: 436,559. Oil engines. PERLMUTTER, B., 16, Rue des CÚlestines, Liege, Belgium. Sept. 28, 1934, No. 27848. Convention date, Sept. 28, 1933. [Classes 7 (ii) and 7 (iii)] In an oil engine having one or more offset combustion chambers h<1>, h<2> arranged in the cylinder head, each chamber is bounded by two flat walls h<3>, h<4> which diverge towards the periphery of the head and an outer wall h<5> having for the greater part of its length the shape of a volute, of which the radius of curvature decreases towards the cylinder axis, and for the remainder of its length a reverselycurved shape h<7> connecting the volute to the underside of the head. The two chambers h<1>, h<2> may be parallel or inclined to one another so that their lower ends intersect to form a common opening h<6> leading into the cylinder. A small quantity of fuel is injected into the chamber h<1> through an injector i early in the compression stroke, and near top dead-centre a large quantity of fuel is rapidly injected through an injector j into the chamber h<2>. Injection and combustion in the chamber h<1> are prolonged beyond the commencement of injection into the chamber h<2>. Arrangements of valves are described in which: (1) two exhaust valves are provided in the combustion chamber and two inlet valves in the cylinder head, (2) two valves S<1>, S<2> serving for both inlet and exhaust are provided in the combustion chamber and operated simultaneously or in alternate cycles, in which case an inlet valve S<3> is provided in the cylinder head, and (3) valves S<1> .. S', Fig. 9, serving for both inlet and exhaust, are provided and operated in pairs in alternate cycles.
Patent GB-992953-A (GB)
Title: Stable, chlorite-containing bleaching medium
IPC: D06L4/26
Filed: 1961-08-01
Abstract: A stable, chlorite-containing, aqueous bleaching medium, which upon dilution with water is suitable for use in the bleaching of cotton fabrics, contains at least 200 g. per litre of chlorite calculated as sodiumchlorite and a salt of amidosulphuric acid other than a salt with a monoalkanolamino.  Alkali metal, alkaline earth metal and ammonium chlorites may be used.  The solutions may be produced by the addition of the salts of amidosulphuric acid to the concentrated chlorite solutions or by adding mixtures of amidosulphuric acid and solutions of inorganic or organic bases, e.g. sodium hydroxide to the chlorite solutions. The chlorite solution may also contain surface-active substances, e.g. a p-alkyl phenol-polyglycol ether, and/or buffers.
Patent GB-1400622-A (GB)
Title: Elastomers for use in oxidative and corrosive environments
IPC: C08L23/16
Filed: 1972-06-14
Abstract: 1400622 Elastomer compositions TRW Inc 14 June 1972 [14 June 1971] 27903/72 Heading C3P Peroxide cured elastomer compositions comprise (a) 30 to 90 weight per cent of olefin polymer rubber, (b) 2 to 25 weight per cent liquidderived 1,2-polybutadiene resin, (c) 2 to 25 weight per cent of fluorine-containing polymer, (d) 2 to 50 weight per cent of filler and (e) 2 to 30 weight per cent of compatible impregnating oil, the impregnation having been effected during or after curing. The rubber may be an ethylene/propylene, ethylene/propylene/diene, isobutylene/isoprene, isoprene/ acrylonitrile, butadiene/acrylonitrile or butadiene/styrene copolymer rubber or a polyisoprene, polybutadiene or polyisobutylene rubber. The liquid polybutadiene preferably contains at least 80 per cent of units in 1,2-linkage. The fluorine-containing polymer may be polytetrafluoroethylene, polyhexafluoropropylene, polychlorotrifluoroethylene, polyvinyl fluoride, polyvinylidene fluoride, polyperfluorobutadiene or a copolymer of hexafluoropropylene with tetrafluoroethylene or vinylidene fluoride. The filler may be silica, lumina or carbon black. The oil may be paraffinic or naphthenic. The compositions may be extruded on to cables or conductors or compression moulded to form seals and rings for use in oxidative and corrosive environments. Examples describe the curing and impregnation with paraffinic oil of compositions comprising EPDM rubber, liquid 1,2-polybutadiene, polytetrafluoroethylene, carbon black, zinc oxide and optionally calcium silicate.
Patent GB-1189857-A (GB)
Title: Stitched Non-woven Fabric
IPC: D04H1/52
Filed: 1967-06-16
Abstract: 1,189,857. Stitched non-woven fabric. BEACON MFG. CO. 16 June, 1967 [16 June, 1966], No. 27980/67. Addition to 1,109,641. Heading D1R. A stitched non-woven fabric as described and claimed in Specification 1,109,641 is further characterised in that each row of stitches 13 is formed from two continuous yarns Y 1 , Y 2  and have stitch loop components 20 on one side of the batt 11, and interconnected diagonally extending and straight line stitch components 22, 21 on the other side of the batt, the stitch loop components 20 being formed from both yarns Y 1 , Y 2  and the diagonally extending components 22 being formed from one yarn whilst the straight stitch portions 21 are formed from the other yarn. The outer surfaces of the batt are preferably heated e.g. napped, calendered, brushed or sheared, to cover the stitch components. The batt is preferably carded and cross-lapped and may be needled. The fibres in the batt extend in the widthwise direction, and the rows of stitches extend in the longitudinal direction.
Patent GB-732027-A (GB)
Title: Improved electrical pin-and-socket couplings
IPC: H01R13/453
Filed: 1953-10-13
Abstract: 732,027. Two-part couplings. DAVIDSSON, T. A. Oct. 13, 1953 [Dec. 23, 1952], No. 28146/53. Class 38 (1). A shuttered socket has a pair of U-shaped sliding shutters 7, 7a, arranged in overlapping relation in a recess A at the rear of a socket cover 1. The limbs of each shutter in the closed position, Fig. 2, cover both of a pair of socket contacts, not shown, to which position the shutters are urged by springs 13, 13a. One limb of each shutter has an oblique edge 11 which, in the position shown, extends across one of a pair of elongated slots 4, 5, Fig. 1, in the cover 1. To insert a plug, the pins are placed in the outer ends of these slots and slid along them thereby sliding the shutters outwardly and uncovering the contacts whereupon the plug is pushed home. The shutters may be pivoted.
Patent GB-461705-A (GB)
Title: Improvements in and relating to advertising and like devices
IPC: G09F11/12
Filed: 1935-10-12
Abstract: 461,705. Moving signs. ALLTREE, A. Oct. 12, 1935, No. 28189. [Class 3 (i)] In advertising devices of the type in which independent display panels travel intermittently around a closed path, the panels 7 are detachably mounted on cross-bars 5, 6, the ends of which move along the sides of two parallel rectangular circuits 2a, 2b, 2c, 2d. The bars 5 are lifted up the front 2c by pawls 9c carried by blocks 9 reciprocating up and down guide rods 9a. The bars 6 are lowered down the back 2d by pawls 11c carried by blocks 11 reciprocating up and down guide rods 11a, a projection 11f being provided on each block 11 to prevent the bars falling rapidly under gravity. The blocks 9, 11 are reciprocated either by pins 13a, 13b on endless chains 12, 13, or by pins on the ends of pivoted levers, the chains being oscillated, or the levers rocked, by connecting rods 22 each pivoted at 23a to a pinion 23 geared to one of the chain sprockets 16 and at 21a to a disc 21 rotated slowly through reduction gearing by an electric motor. The pawls 9c, 11c are spring- pressed, and also engage inclines 9d, 11d to ensure that they snap behind the bars 5, 6. The bars are forced along the top and bottom sides of the rectangular path by pushers 18b 18c reciprocated by a spring-retracted lever 18 actuated by a pin 21b projecting from the disc 21, and spring-pressed pawls may be provided to take behind the row of bars 5, 6 to prevent their return. The upper bars 6 rest on a platform 20 having inclined ends 20a, 20b, the function of the platform being to support the end bars 6 just after they have been raised to the top and just before they descend. The platforms are slid in one direction by engagement with the slopes 20a of a rising bar 5, and in the other direction by engagement of the rising projections 11f on the blocks 11 with the slopes 20b, a snap spring 27 tending to hold the platform in each end position. Rollers may be provided on the bar ends to facilitate their movement, and a fan may be provided to cool the motor. In a modification, the pawls 9c, 11c are mounted directly on the chains 12, 13. The device may be combined with a clock, and the sign motor may be controlled by a timeswitch actuated bv the clock. The clock and sign may be two-faced, and in this case the panels 7 may bear advertisements on both sides, or two panels may be suspended from each bar 5, 6.
Patent GB-1440025-A (GB)
Title: Low pressure mercury vapour discharge lamp
IPC: H01J61/72
Filed: 1973-06-13
Abstract: 1440025 Gas discharge lamps PATENTTREUHAND - GES FUR ELEKTRISCHE GLUHLAMPEN mbH 13 June 1973 [16 June 1972] 28209/73 Heading H1D In a low-pressure, mercury vapour fluorescent discharge lamp, an amalgam or amalgamating metal 11 which determines the running pressure in the lamp is supported on a component 6 at a distance from an electrode 5 not exceeding half the diameter of the lamp envelope and a heat insulating layer 9 is provided between the electrode and the amalgam or amalgamating metal. Suitable insulating materials are aluminosilicate, alumina, magnesia or zirconia ceramics, zeolites, lime or alkali metal aluminosilicates, alumina paper or carbon felt. A starting amalgam 12 may be provided on the inside of component 6. In Fig. 3 (not shown) the component 6 is a complete ring around the electrode and the insulating material and amalgam are provided on an outward projection (15, 16). The amalgamating metal can be indium or cadmium.
Patent GB-1131656-A (GB)
Title: Hair clamp
IPC: A45D4/08
Filed: 1966-06-23
Abstract: 1,131,656. Hair clamp. INDOHEEM N.V. 23 June, 1966 [23 June, 1965], No. 28227/66. Heading A4V.- In a hair clamp of the type which can be heated on a heated tube and subsequently placed on a roller with the hair coiled thereon consisting of two hinged parts of synthetic plastics material 1 and 2, each containing a metal plate 7 (to give better thermal conductivity) covered on the inside by a coating of the synthetic plastic material, the parts being pressed together by a spring 3 and being provided with means for opening the clamp, the metal plate is constructed with projections or legs 11 which project inwardly through the layer of synthetic material and end at a short distance beyond the layer of synthetic material, serving to give more rapid heat transfer to the plate. Preferably the thickness of the plate is at least equal to the thickness of the synthetic plastics material between the plate and the inner surface of the clamp and the legs are located at the ends of the clamp. The handles 4 and 5 for opening the clamp may be hinged at the lower end of the clamp (remote from hinge 6) and are adapted to fold back against the outside of the corresponding parts 1 and 2 of the clamp and to be retained in this position by the spring 3.
Patent GB-849677-A (GB)
Title: Tractor-drawn soil-working implement
Inventor: WARNOCK JAMES HAMILTON
IPC: A01B31/00
Filed: 1957-09-07
Abstract: 849,677. Agricultural implements. WARNOCK & SON Ltd., J. Nov. 21, 1958 [Sept. 7, 1957], No. 28301/57. Class 6(1). A soil working implement comprises L-section metal joists 11 fixed to a frame 10 so that the base 11A of the joist is rearwardly and upwardly inclined from toe to heel to give a cutting action the frame being provided with a removable attachment 12 which is coupled to the linkage 26, 29 of a tractor power lift system. As shown, the attachment 12 is provided with arms 19 formed with hooked ends 19 which engage under stub flanges 20, the attachment being locked in place by means of latches 21. Flanges 22 are provided so that the attachment 12 may be removed and replaced in the other end of the frame where it is again locked by means of the latches 21. Specification 813,809 is referred to.
Patent GB-885132-A (GB)
Title: Method of and apparatus for pressing together superposed members
IPC: B32B27/00
Filed: 1959-04-23
Abstract: 885,132. Laminating. GOODRICH CO., B.F. April 23, 1959 [April 24, 1958], No. 28395/60. Divided out of 885,131. Class 140. Superposed sheet-like members are bonded together with the aid of pressure produced by placing the members together with a multiplicity of rigid balls in a container having a flexible wall, and establishing a pressure in the container substantially below the external pressure to reduce the volume of the container, thus causing the balls to press the members together. As shown, a heating structure as described in Specification 885,131 comprising inner and outer sheets 22 and 26, between which is an electrical heating element 32, and a protective cover 27 adjacent the element 26, is secured by clamps 55 engaging the cover 27 to a channellike mould 70, which is supported in a box 68. The heating structure is backed by a sheet of " Teflon " (Registered Trade Mark) treated fabric 58, a sponge rubber venting pad 59, a fibre glass venting mat 60, a sheet 61 of " Teflon " treated fabric and a pre-formed perforated aluminium sheet 77. An electrically heated rubber blanket (not shown) may be attached to the outer surface of the mould 70. The space within the box 68 is entirely filled with rigid metal heat-conducting balls 81, and a flexible cover 79, of Neoprene rubber, aluminium or stainless steel is clamped thereover by clamps 80. The curing of the material of the sheets 22 and 26, and the bonding together of the components of the heater, is effected by applying heat and super-atmospheric pressure to the box 68 in an autoclave, while applying sub-atmospheric pressure to the interior of the box and to the grooves 72 and 73, so that distortion of the cover 79 causes the balls 81 to press the various sheet-like members uniformly together. The apparatus can also be used with the exterior of the box and cover at atmospheric pressure, and heat applied by the rubber heating blanket.
Patent GB-427322-A (GB)
Title: Improvements in and relating to magnetic bodies more especially in high frequency electrical apparatus
IPC: H01F1/26
Filed: 1933-10-14
Abstract: 427,322. Inductances; cables. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Oct. 14, 1933, No. 28456. Convention date, Oct. 19, 1932. [Classes 36 and 37] A magnetic core for high-frequency apparatus is formed of a uniform mixture of magnetic powder with insulating material, the latter amounting in volume to at least half the total volume of the core, and consisting of a polyvinyl compound, such as polystyrol, alone or mixed with other insulating materials, such as rubber, balata, guttapercha, cellulose derivatives, formaldehyde condensation products, or waxes. The mixture of magnetic insulating substances may be compressed in a mould, or formed into sheets, bands or the like from which the cores can be made. The products may be used for loading coils, filter coils or other high frequency apparatus, or for loading cables. In the form shown in Figs. 1 and 2, a coil 3 is provided with a protecting jacket 4 around which the core 5 of magnetic and insulating materials is applied with light pressure. In a modification, the coil is of rectangular cross section, and in another modification the core is applied as a ribbon wound round the coil. Fig. 7 shows the application of the invention to a cable for the transmission of high frequency currents, the cable comprising a conductor 30 coated with a viscous mass 31 which is surrounded by a magnetic ribbon 32 and outer insulating layer 33. Where the cable is provided with a return conductor concentric with the inner conductor, both conductors may be surrounded with a magnetic ribbon. The Specification as open to inspection under Sect. 91 is not restricted to cores containing polyvinyl compounds, but covers the use of any mixture of finely divided magnetic and insulating substances in which the volume of the latter amounts to at least half the total volume of the core. The core material may be hardened by polymerization or by evaporation of solvents, or in the case of rubber mixtures, by vulcanization. The core material 52 may also be used for filling the air gaps in a core of ordinary construction made in two parts, as shown in Fig. 9 (Cancelled). This subject-matter does not appear in the Specification as accepted.
Patent GB-778279-A (GB)
Title: Improvements in or relating to lightning arresters
IPC: H01T1/16
Filed: 1955-10-06
Abstract: 778,279. Lightning arresters. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Oct. 6, 1955 [Oct. 14, 1954], No. 28483/55. Class 38 (4). A lightning arrester comprises two electrically parallel paths each consisting of one or more semiconductor rectifier devices in series with a spark gap, the rectifiers in one path being oppositely poled to those in the other path. The rectifiers and spark gaps of one path may be housed in a porcelain tube provided with metal end members for connection to similar members of another tube containing the rectifiers and spark gaps of the other path. Alternatively, as shown in Fig. 2, the porcelain tubes 10 may contain only the rectifiers 11, the spark gaps being external and consisting of a common electrode 18 which co-operates with two electrodes 17 each carried by one end member 12 of the two tubes. The rectifiers are preferably of the P-N junction type.
Patent GB-364113-A (GB)
Title: Improvements in or relating to the manufacture of food for animals
IPC: A23K1/18
Filed: 1930-09-24
Abstract: A- and C-vitamines for mixture with winter food for animals, are extracted from lemon peel with alcohol.ALSO:A- and C-vitamines obtained from fruits of the citrus species are added to cattlecake or any other winter food.  Any parts or constituents of such fruits, such as the etheric oils or peel, may be added, or lemon peel may be extracted with alcohol and after evaporation thereof, the extract may be added to linseed cake.  Carotine or carotine-containing material such as unrefined red palm oil may be added.