baber/WOPTO huggingface dataset:
Patent GB-1184786-A (GB)
Title: Improvements in or relating to Contact Members
Inventor: CARTWRIGHT JOHN ANTHONY
IPC: H01R4/28
Filed: 1967-02-07
Abstract: 1,184,786. Edge connectors for printed circuit boards. PAINTON & CO. Ltd. 6 May, 1968 [7 Feb., 1967], No. 5787/67. Heading H2E. A contact comprises strips 28, 30 having convex contact surfaces 26, 27 axially spaced and aligned of a terminal post 20. The post 20, of brass, and suitable for making a wrapped joint connection, has lateral extensions 24, abutting a housing 1 at 31 to prevent downward movement, and studs 25 welded to and extending through a steel spring 21, abutting the housing at 15 to prevent upward movement, and through part of a folded-over portion 22 of the contact strips 28, 30, of gold-plated phosphor-bronze. The upper end 29 of the strip 28 is located by a ridge 12. Alternatively, a spring (41) may be pressed out from a contact strip (42) which has flanges (55) gripping a terminal post (40). The housing 1 has a row of such contacts each contained in a cell 2 formed by walls 6 having mouths 5 to facilitate entry of a circuit board.
Patent GB-720773-A (GB)
Title: Improvements in or relating to circuits for synchronising a saw-tooth oscillator
IPC: H04N5/12
Filed: 1953-03-03
Abstract: 720,773. Automatic frequency and phase control systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 3, 1953 [March 6, 1952], No. 5872/53. Class 38 (4). [Also in Group XL (c)] A saw-tooth generator, which may be line scan generator in a television receiver, is synchronized by repetitive sync. pulses and is rendered insensitive to random interference pulses, by the use of a phase-comparing discharge tube with three control grids which is gated "open" only during the fly-back period of the saw-tooth generator. The sync. pulses, shown at s as part of a television waveform, are applied to the first control grid g<SP>1</SP> of the discharge tube 2, and the saw-tooth waves T from the line scan generator 17 are applied to the second control grid g<SP>3</SP>. When in synchronism, the pulse coincides with the middle portion of the steep slope of the saw-tooth, and deviation from this position raises or lowers the amplitude of the anode voltage pulses which are applied through an integrating network 13-15 to the generator 17 to effect synchronization. In order that interfering pulses occurring during the low-slope periods of the saw-tooth may be rendered ineffective, positive pulses F coincident with the fly-back periods are taken from the generator 17 and are applied to the third control grid g<SP>5</SP> so that the tube 2 is conductive only during those fly-back periods. Cathode resistors 4, 5 provide high negative feed-back for the frame pulses ; the line pulses however are not attenuated owing to the provision of a shunt capacity 6. The screen grids of the valve are connected to earth by a capacity 8, of such value that the line pulses are shorted, but the frame pulses may be derived at 22.
Patent GB-366745-A (GB)
Title: Casserole stove
IPC: A47J36/36
Filed: 1931-02-25
Abstract: 366,745. Supports for heating utensils on stoves. HEBDON, M. E. L., 2, Garlinge Road, Cricklewood, London. Feb. 25, 1931, No. 5874. [Class 126.] A device for supporting a casserole over a burner or electric heater comprises a casing adapted to surround the casserole up to the rim and having a raised bottom 1 with marginal perforations 2 outside the area covered by the bottom of the casserole. The gases leave by apertures 3 in the top of the casing after circulating in the jacket spaces formed by it.
Patent GB-563064-A (GB)
Title: Improvements in electric arc welding sets
IPC: B23K9/10
Filed: 1943-04-13
Abstract: 563,064. Welding transformers. TILLS, J. W., and LOVATT, J. B. April 13, 1943, No. 5884. [Classes 38 (ii) and 38 (iv)] A welding set comprises a transformer having a primary 2 and two or more secondaries 8, 9 embracing separate flux paths, one of the secondaries being directly connected to the load terminals 10 and the other being connected thereto through a variable reactance 11.
Patent GB-536933-A (GB)
Title: Improvements in or relating to brakes
IPC: F16D65/52
Filed: 1940-04-02
Abstract: 536,933. Internal expanding brakes. AUTOMOTIVE PRODUCTS CO., Ltd., and GATES, G. R. G. April 2, 1940, No. 5916. [Class 103 (i)] In a brake of the self-energizing type the force-transmitting device comprises a pair of levers disposed between the ends of the shoes remote from the externally actuated brakeapplying means, each of the levers being pivoted at one end and engaging at the other end with the other lever and each shoe being engaged by an intermediate portion of the corresponding lever. In the construction, shown in Fig. 4, with the levers 47, 48 in operation by engagement of the toe 49 with an intermediate part of the lever 48, the levers 47, 48 are pivoted by cylindrical projections 51 thereon to a lozenge-shaped support member 38 which is angularly adjustable by means of a screw- and nut-device to regulate the distance between the ends of the shoes 16, 17 engaging cylindrical projections 54, 55 respectively on the levers 47, 48. In Fig. 4, 16 is the primary shoe transmitting pressure to the secondary shoe 17 in the proportion of about half the applied force.
Patent GB-563577-A (GB)
Title: Improvements in coupling arrangements for pipe installations on railway vehicles
IPC: F16L27/08
Filed: 1943-04-14
Abstract: 563,577. Flexible coupling pipes. SPENCER MOULTON & CO., Ltd., G., and GLASCODINE, R. K. April 14, 1943, No. 5977. [Class 99 (ii)] The couplers 14 of a railway vehicle pipe coupling are mounted on an articulated pipe comprising pipe sections and elbows connected by two joints 4, 9 swivelling in a horizontal plane and a joint 12 swivelling in a vertical plane. The double elbow section 7 is inclined to the vehicle axis and the section containing the vertical swivel lies transversely of the vehicle. The upper swivel 4 is connected to the header 3 by a curved. section 5, and supporting springs 20, 21 are provided. Specifications 563,581 and 563,582 are referred to.
Patent GB-1103096-A (GB)
Title: Luggage case
IPC: A45C5/02
Filed: 1965-09-24
Abstract: 1,103,096. Luggage cases. A. KAPLAN. 24 Sept., 1965 [6 April, 1965], No. 6047/67. Divided out of 1,103,095. Heading B8P. [Also in Division A4] A bottom opening luggage case is as described and shown in Specification 1,103,095, but the claims are directed to the inverted, flexible U- section hinge 48, 52, 54 having depending flexible inner flaps 56 closing the open ends of the section and outer medially openable flaps 58 extending upwardly over the flexible flaps when the case is closed.
Patent GB-1224715-A (GB)
Title: Improvements in machines for aligning roots or tubers
IPC: A01D19/16
Filed: 1970-02-09
Abstract: 1,224,715. Root crop harvesting. SOC. D'ETUDES ET DE CONSTRUCTIONS MECANIQUES DE CORBEIL. 9 Feb., 1970 [13 Feb., 1969], No. 6052/70. Heading A1F. A machine for collecting root crop on the ground comprises a frame 1 with two counter-rotating forward sieve grids 3, 4 either horizontal or tilted slightly forwardly with deflectors 28, 30 and 29, 31 which guide roots on to two rearward sieve grids 17, 20 counter-rotating in the opposite sense to the forward grids. The centres of the rearward grids lie in a vertical plane parallel to that through the centres of the forward grids and normal to the direction of travel of the frame. The grids are rotated through a chain drive 11, 12 from a rotating shaft 7 attached to the P.T.O. of the tractor.
Patent GB-615236-A (GB)
Title: Improvements in or relating to means for delivering liquid in bulk from tanks of road vehicles or the like
IPC: G01F11/28
Filed: 1946-02-27
Abstract: 615,236. Venting tanks &c. SHELL-MEX & B.P., Ltd., and GREASLEY, W. E. Feb. 27, 1946, No. 6182. [Class 21] [Also in Group XVIII] A road or like vehicle tank for delivering liquid in bulk comprises a compartment or compartments which is or are each provided with one or more fixed standpipes for delivering predetermined quantities of liquid through openings located at different levels in the compartment, individual valve means being provided for controlling the discharge of liquid through each of the openings and having associated therewith a common control mechanism for opening a selected valve to deliver the desired predetermined quantity quantity of liquid. In the form shown in figures 1 and 2, a tank 4 is provided with an outlet 3 and standpipes 1, 2 which are closed by valves 5, 6, 7, associated with spring-loaded control rods 10, 11, 12, operable by lift cams 21, 22, 23 on a cam shaft 24 in such a manner that only one cam at a time can be engaged with its respective valve rod which is operated, to open the corresponding valve, by rotating the cam shaft. In a modification, Fig. 5, the outlet and standpipes are arranged in a circular group and the valve control mechanism comprises a spring-pressed actuating shaft 51 which is provided with a rotatablecollar 59 having a selector arm 60 to which is pivoted a lever 68 which co-operates with one of a number of slots in an annular gate 66 for pre-setting the shaft 51 to engage a predetermined valve rod 40, the collar 59 having a manuallyoperable lift cam 65 whereby the shaft 51 can be displaced to open the selector valve. In a further modification, Fig. 6 (not shown) the standpipe consists of two sections with spring-loaded valves at the upper end of the upper section, at the junction between the sections, and at the lower end of the lower section, the valves being opened in succession by means of a manually-operated triple lift cam gear. Each standpipe or section thereof is adjustable in length by means of a screw collar and is provided at its upper end with a shroud having drainage ports. In a modified form of shroud, the wall thereof is corrugated and each corrugation is slotted for drainage purposes.
Patent GB-690451-A (GB)
Title: Method of concentrating latex by creaming and centrifugal separation
IPC: C08C1/10
Filed: 1951-03-15
Abstract: 690,451. Concentrating latex. AKTIEBOLAGET SEPARATOR. March 15, 1951 [April 6, 1950], No. 6278/51. Class 70 Field latex obtained from gummiferous trees is concentrated by creaming in a tank in a method known per se so as to cause the rubber particles to agglomerate and accumulate at the surface in the form of a concentrate while a separate collects at the bottom, discharging some of this separate, and then separating the whole of the remainder in a centrifuge to produce a concentrate of rubber particles. The latex may be led through pipe 1 into tank 2 and is there gravitationally or electrically creamed, optionally after the addition of a colloid such as tragacanth, Irish moss, methyl cellulose, sodium alginate, or locust bean gum. Creaming is stopped when the latex has reached a concentration of 56-58 per cent. Some of the lower layer is removed through a pipe 3 and the remainder passes to holder tank 5 and to centrifugal separater 7 in which concentration to 60 per cent. or over may be effected.
Patent GB-805764-A (GB)
Title: Process for the preparation of halohydrocarbons or mixtures thereof
Inventor: CHAPMAN JAMES
IPC: C07C17/20
Filed: 1956-02-29
Abstract: The invention comprises 2-bromo-1:2-dichloro-1:1-difluoroethane, a process for the manufacture of 2-bromo-2-chloro-1:1:1-trifluoroethane or 2-bromo-1:2-dichloro-1:1-difluoroethane or a mixture of these compounds which comprises heating 1:2-dibromo-1:1:2-trichloroethane with substantially anhydrous hydrogen fluoride at elevated pressure at a temperature in the range 90 DEG  to 200 DEG  C. and in the presence of an antimony fluochloride catalyst containing at least 20 per cent by weight of the antimony in the pentavalent state and separating from the reaction product the said 2 - bromo - 2 - chloro - 1:1:1 - trifluoroethane or 2-bromo-1:2-dichloro-1:1-difluoroethane or mixture of these compounds as desired.  An additional process for the manufacture of 2-bromo-2-chloro-1:1:1-trifluoroethane comprises heating 2-bromo-1:2-dichloro-1:1-difluoroethane with substantially anhydrous hydrogen fluoride at elevated pressure at a temperature in the range 90 DEG  to 200 DEG  C. and in the presence of an antimony fluochloride catalyst containing at least 20 per cent by weight of the antimony in the pentavalent state and separating the resultant 2-bromo-2-chloro-1:1:1-trifluoroethane from the reaction product. The term "antimony fluochloride catalyst" is used to denote a mixture of antimony fluorides and chlorides some part of which contains pentavalent antimony.  The catalyst may be prepared in situ by introducing into the reaction vessel hydrogen fluoride and antimony pentachloride or a mixture of antimony tri-and pentachlorides and heating to bring about reaction.  Examples are furnished.  1:2 - Dibromo - 1:1:2 - trichloroethane is prepared by treating trichloroethylene with bromine at 30 DEG  to 40 DEG  C. with light activation.  Specification 767,779 is referred to.
Patent GB-255767-A (GB)
Title: Egg opener
IPC: A47J43/14
Filed: 1926-03-08
Abstract: 255,767. Wright, J .W. March 8, 1926. No Patent granted (Sealing fee not paid). Eggs, opening.-An egg-opener comprises two substantially semi-circular members 1, 2 pivoted together at the inner ends 8, and shaped to form handles at the outer ends, the members having interdigitated teeth 3 at their junction which penetrate the egg shell whereby the egg is opened when the members 1 and 2 are separated. When closed the backs of the members form an obtuse angle slightly less than 180‹. Both members 1, 2 may be made from the same die.
Patent GB-1490622-A (GB)
Title: Method for manufacturing compact thermo-electric modules
IPC: H01L35/34
Filed: 1975-02-14
Abstract: 1490622 Thermoelectric devices COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 14 Feb 1975 [15 Feb 1974] 6422/75 Heading HlK In a method of making a thermoelectric module, blocks of P and N type materials are cut into plates 11, 12, 13 and 21, 22, 23 and formed into a stack 3 with interleaving insulation sheets which alternately protrude from opposite faces of the stack and are recessed-in on the other face. The ends of the stack are immersed in brazing material to form bridges 41, 42 and 51-53 between respective pairs of plates. The stack 3 is then sliced orthogonally to the insulation sheets to form rods of P and N material, alternate slices are overturned so as to bring a P rod to the beginning of the row and the slices are then re-stacked with further layers of interleaving insulation sheets (60) (Fig. 6, not shown). Before immersion in the brazing material, the faces of the stack 3 are secured or plated with Sn or Ni. Alternatively, the N and P blocks may have Sn or Ni plating applied to opposite faces prior to the first subdivision into plates. The insulation sheets are of polyimide film coated with PTFE to withstand the brazing temperature and the insulation layers (60) and the slices are cemented together with an epoxy cement to make the final module. Further brazing material is deposited to form more bridges and current terminals (95, 96) (Fig. 8, not shown). Specification 1,490,623 is referred to.
Patent GB-1221972-A (GB)
Title: Dehydrogenation process
IPC: C07C5/41
Filed: 1968-02-09
Abstract: 1,221,972. Dehydrogenating hydrocarbons. PHILLIPS PETROLEUM CO. 9 Feb., 1968 [10 Feb., 1967; 8 Nov., 1967; 26 Dec., 1967], No. 6497/68. Heading C5E. A feed stream which is free from halogens and contains alkanes in admixture with steam is dehydrogenated and/or dehydrocyclized in the presence of a catalyst prepared by combining (1) a porous support comprising Al 2 O 3 , HF- treated Al 2 O 3 , SiO 2 , MgO, ZrO 2 , an aluminosilicate or an aluminate spinel of a Group II metal with (2) one or more of Ni, Pt, Pd, Ru, Ir, Rh or Os, or a reducible compound thereof and treating the resulting composite with (3) one or more basic compounds of a Group I A  or II A  metal sufficient to impart to the catalyst a pH of at least 8. In examples, (1) n-butane is dehydrogenated using zinc spinel, Pt and K 2 CO 3  to yield a mixture of butenes and minor proportions of methane, ethylene, propane, propylene and butadiene, (2) propane is similarly dehydrogenated, and (3) n-hexane is dehydrocyclized at 1010‹ F., 70 p.s.i.g., and in the presence of a catalyst comprising Pt, K 2 CO 2  and zinc aluminate to yield naphthenes, benzene, cyclopentane, methylcyclopentene and methylcyclopentane and methylcyclopentadiene.
Patent GB-306968-A (GB)
Title: Improvements in or relating to combustion turbine installations for the propulsion of ships
Filed: 1929-02-28
Abstract: 306,968. Holzwarth, H. Feb. 29, 1928, [Convention date]. Motor power plant.-Relates to means for starting up combustion turbine installation comprising separate turbines 1, 1<1> geared at 2, 2<1> to propeller shafts 3, 3<1>. The turbine 1 drives through gearing 6, which may be variable, a low pressure charging blower 4, and the turbine 1<1> drives through gearing 6<1> a high pressure blower 5. During normal working these blowers are connected in series, and the blower 5 charges the explosion chambers of both turbines. On starting up, some of the explosion chambers of the turbine 1 are first charged by a blower 8 driven by an auxiliary Diesel engine 7. Later the charging is taken over by the low-pressure blower 4, which also charges the turbine 1<1> until both turbines have been run up to speed. The gearing 2, 2<1>, which provides for reversing, is then actuated to couple up the propeller shafts. The auxiliary engine 7 also drives an electric generator 9.
Patent GB-540377-A (GB)
Title: Improvements in and relating to electrical contact lugs
IPC: H01R4/02
Filed: 1940-04-11
Abstract: 540,377. Binding-posts. CINCH MANUFACTURING CORPORATION. April 11, 1940, No. 6564. Convention date, May 3, 1939. [Class 38 (i)] A soldering lug 15 attached to a support such as the base 13, 14 of a condenser 1 has a lip 18 projecting at an angle to the lug and means for retaining the wires 20 in position in relation to the lip during soldering. For this purpose the wires are passed through a hole 22 and bent round into the concavity 19 beneath the lip. Alternatively the wires may be wrapped round notches 23 before bringing the ends into the concavity 19. Wings 17 are bent round to embrace the lead-in wire from the apparatus 1 before soldering it. The apparatus 1 is mounted by members 3 on a plate 2 which has a hole for the passage of the lugs 15.
Patent GB-576794-A (GB)
Title: Improvements relating to circular saws for cutting stone and the like
IPC: B23D59/02
Filed: 1944-04-08
Abstract: 576,794. Cutting stone &c. IMPREGNATED DIAMOND PRODUCTS, Ltd., and FERRARI, J. April 8, 1944, No. 6583. [Class 124] In a circular saw for cutting stone and the like, water or other liquid coolant is supplied by a cavity 7 in the blade-carrying spindle 4 and passes through ducts 2, 3 which extend to the periphery of the blade 1. The ducts 2, 3 may alternate on both faces of the blade and may be formed by radial channels covered by strips 12. They communicate with the cavity 7 by annular grooves 10, 11 and radial passages 5, 6.
Patent GB-1326861-A (GB)
Title: Process for the production of acetoacetamide
IPC: C07C/
Filed: 1972-02-14
Abstract: 1326861 Acetoacetamide WACKER-CHEMIE GmbH 14 Feb 1972 [12 Feb 1971] 6706/72 Heading C2C Acetoacetamide is continuously produced in the liquid phase by reacting diketene with ammonia at 10-80‹ C. using as solvent methanol, ethanol or a chlorinated hydrocarbon of boiling point 12-80‹ C., the reaction product being continuously separated from the reaction components, completely or partially.
Patent GB-1378943-A (GB)
Title: Jet discharge nozzle device
IPC: F02K1/40
Filed: 1972-02-14
Abstract: 1378943 Jet propulsion nozzles TEXTRON Inc 14 Feb 1972 [14 June 1971] 6738/72 Heading F1J The invention relates to a jet propulsion nozzle which is adapted to be silenced in operation. The nozzle comprises an externally aerofoil-shaped plenum chamber 10 which is formed at its trailing edge 18 with a plurality of discharge orifices 12 through which jet gases from the pressurized fluid conduit 14 discharge in the form of jets 22, the arrangement being such that a flow of ambient air is induced to flow in the form of a sheath 20 around each jet stream whereby the noise of the jet is attenuated. In a second embodiment two parallel rows of orifices are provided adjacent the trailing edge, the orifices being in staggered relation and being inclined at a small angle whereby the jet streams diverge. In a third embodiment three rows of orifices are provided. The fluid-pressure may be up to 10 p.s.i. and the diameter of the Orifices 0À040 inch; the rate of flow through the orifices must be greater than Mach 0À5 but not greater than Mach 1.
Patent GB-910317-A (GB)
Title: Process for improving the adhesion of materials made of polyethylene terephthalate
IPC: C08J7/14
Filed: 1959-02-26
Abstract: Polyethylene terephthalate materials, especially films and fabrics, are treated either with an aqueous solution made from trichloracetic acid and chromium trioxide or an equivalent thereof, or alternatively with a solution containing together trichloracetic acid and a water-soluble chromic salt in an organic solvent containing sufficient water to ensure solution of the chromic salt.  Chromium trioxide equivalents include chromic acid, alkali metal chromates and alkali metal dichromates.  The specified aqueous solution preferably contains only water as solvent, together with a surfaceactive agent, e.g. an alcohol sulphonate.  In a modification of the process using an aqueous solution, the material may be treated, instead of with a single solution, successively, in either order, with an aqueous solution of trichloracetic acid and an aqueous solution made from chromium trioxide or an equivalent thereof.  An intermediate drying step may be used between the two aqueous bath treatments.  When an organic solvent is used, this may consist of an aromatic hydrocarbon, water in the quantity specified and sufficient alcohol to produce a single phase.  Such a solution may be made by adding an aqueous-alcoholic solution of chromium trioxide to trichloracetic acid in solution in an aromatic hydrocarbon, e.g. toluene.  Material treated by either process may be dried at an elevated temperature. Treatment enhances the adhesion of the material for materials of other high molecular synthetic or high molecular natural substances, e.g. gelatin, polyvinyl alcohol, polyvinyl butyral, polyethylene and polyamides.
Patent GB-268745-A (GB)
Title: A process and apparatus for low-temperature distillation
IPC: C10B49/16
Filed: 1927-03-11
Abstract: 268,745. Bamag-Meguin Akt.-Ges., and Heller, O. April 1, 1926, [Convention date]. Coking processes. -Fuel is distilled at low temperature (450‹ to 850' C.) by the accumulated heat derived from periodically heated filling material in rotary drums through which the fuel is passed. Coal is charged from a hopper c into a drier a and delivered from a bunker d into one rotary drum b<1> of a pair which has been previously heated by the hot gases from a furnace f, these hot gases subsequently passing through the drier. The residue is discharged from a chamber e<1> and the distillates withdrawn through an outlet i. The gases used for reheating the drums b<1> between the carbonizing periods serve to burn off any portions of the charge incrusted on the filling material of the drums. The filling material may be constituted by hexagonal tube sections or by refractory tiles in various formations. Specification 217,567 is referred to.