baber/WOPTO huggingface dataset:
Patent GB-478069-A (GB)
Title: Improvements in or relating to hand-operated devices for cutting, scything, mowing or the like
IPC: A01D1/06
Filed: 1936-07-15
Abstract: 478,069. Cutting grass &c. CRUIKSHANK & CO., Ltd., SHANKS, T., and DUNCAN, J. July 15, 1936, Nos. 19627 and 21665. [Class 6 (iii)] A hand-operated device for cutting grass, bracken, and the like comprises a handle and two blades carried thereby, the blades being of sickle shape and lying in the same plane with their cutting edges away from each other. The handle a has two arms provided with hand grips b and has a bracket c secured to its lower end. The blades d, provided with concave cutting edges e, are secured to the bracket by pivots i and are fitted with links j provided with slots through which and through an extension of the bracket a bolt passes, a nut being provided on this bolt to clamp the blades at a desired angle. The blades may be secured to the bracket by studs and may be welded to each other or rigidly secured to each other by strut extending between their outer ends. The blades may be stamped out of a single piece of metal. In the first Provisional Specification it is stated that the cutting edges may be straight or convex and that the cutting edges may be on the sides of a metal plate which may be rectangular in shape.
Patent GB-1186404-A (GB)
Title: Wax Emulsions
IPC: C09K23/00
Filed: 1967-04-28
Abstract: 1,186,404. Wax emulsions and coatings. MOBIL OIL CORP. 28 April, 1967 [29 April, 1966], No. 19627/67. Headings BIV and B2E. [Also in Division D2] Cationic wax emulsions comprise 10% to 70% petroleum wax, 0.5% to 10% based on the wax, of an emulsifying agent comprising the salt of a C 10  to C 40  amine with a C 1  to C 18  organic acid or with an inorganic mineral acid, and 0.05% to 3% based on the total weight of wax and emulsifying agent, of an emulsion modifier comprising an amine having a molecular weight lower than that of the amine of the amine salt and having no more than 12 carbon atoms. The wax may be paraffin wax, scale wax, slack wax, microcrystalline wax, or petroleum waxes modified with synthetic polymers, for example polyethylene or ethylenevinyl acetate copolymers. The amine salt may be formed from a n-amine, N-substituted propylene diamine or quaternary ammonium salt (examples are given). The emulsion modifier may be aliphatic, cycloaliphatic or aromatic amine (examples are given). In preparing the emulsion, the amine salt is formed then mixed with the wax and the emulsion modifier in either order. The final emulsion may have pH 3 to 8, and may be employed as a coating for cellulosic material such as paper.
Patent GB-193344-A (GB)
Title: Improvements in and relating to roller bearings
IPC: F16C33/54
Filed: 1921-11-16
Abstract: 193,344. Leon, K. O. Nov. 16, 1921. Roller bearings. - In a: roller bearing the cage d has axles f carrying the rollers a, which axles are provided with a substantially spherical central enlargement for permitting angular displacement of the roller. The radii of curvature of the rollers and races may be such that point contact is obtained under no load and line contact under load.
Patent GB-276317-A (GB)
Title: Improvements in steel alloys
IPC: C22C38/40
Filed: 1927-07-25
Abstract: 276,317. Krupp Akt.-Ges., F. Aug. 23, 1926, [Convention date]. Alloys.-Heat-resisting steel alloys contain 15- 25 per cent of chromium, 15-25 per cent of nickel and less than 0.2 per cent of carbon. Specifications 201,914 and 201,915 are referred to.
Patent GB-437341-A (GB)
Title: Improvements relating to time switches
IPC: G04C23/08
Filed: 1935-07-10
Abstract: 437,341. Time switches. LANDIS & GYR AKT.-GES., 1, Hofstrasse, Zug, Switzerland. July 10, 1935, No. 19725. Convention date, Aug. 24, 1934. [Class 38 (v)] A time switch is operated by a pin 5 on a switching lever 3, the upper end of which is bent round the edge of a time dial 1 tc which the lever 3 is rigidly connected by a pawl 19 on the lever 3 engaging recesses in the edge of the dial 1. A spindle 12 is mounted for rotation and for axial movement in a bush 10 in the glass front 9 of the switch casing. An arm 15 is loosely mounted on the spindle 12 but is connected to it by a hairpin spring 22 fixed to a pin 21 and having its arms embracing flats 23 on the end of the spindle 12. If the arm 15 is rotated until it lies over the lever 3, and then depressed, a recess 15<1> engages and depresses the pawl 19 to uncouple the lever 3 from the dial 1. The lever can then be set in any position on the dial, and, on release of the arm 15 is again rigidly connected to the dial 1. The flexible connection between the arm 15 and spindle 12 prevents sufficient force being used so as to stop the clock.
Patent GB-204309-A (GB)
Title: A process for facilitating discovery of mineral or other deposits
IPC: G01V1/00
Filed: 1923-08-01
Abstract: 204,309. Naamlooze Vennootschap Erda Maatschappij voor Wetenschappelijk Aardlagenonderzoek, (Assignees of Erda Akt.-Ges.). Sept. 19, 1922, [Convention date]. Drawings to Specification. Void [Published under Sect. 91 of the Act]. Prospecting - For discovering mineral and other deposits in the earth, periodic waves are propagated in the earth and the shape and energy of the waves are noted at varying distances from the point of propagation; the frequency of the waves is then varied and the shape and energy of the waves again noted. The waves may he propagated by the rotation of an 'unbalanced mass, by striking the earth or by oscillating a member embedded in the earth. The shape of the waves may be noted by the use of two receivers, e.g. microphones, by which alternating currents are generated, which alternating currents may then be superposed, and the effect noted as by means of a telephone. The receivers may be of variable capacity, as by means of adjustable shunts, and the currents produced may be amplified as by means of cathode tubes. The energy of the waves may be noted by means such as seismographs which may be tuned according to the frequency of propagation of the waves.
Patent GB-530937-A (GB)
Title: Improvements in or relating to circuit arrangements for phase angle compensation
Filed: 1939-07-06
Abstract: 530,937. Capacitance measurements ; resistance combinations. FIDES GES FUR DIE VERWALTUNG UND VERWERTUNG VON GEWERBLICHEN SCHUTZRECHTEN. July 6, 1939, No. 19751. Convention date, July 6, 1938. [Class 37] In a circuit arrangement for compensating for the phase angle of a resistance by means of a compensating condenser, the resistance having the phase angle is connected in parallel with a compensating condenser and an auxiliary compensating resistance which are connected in series with one another, a voltage in phase with the current through the resistance being derived from the compensating condenser. Fig. 2 shows a Schering bridge in which the resistance 1 in one arm is compensated for phase angle by connecting in parallel therewith a condenser 2 and resistance 3 in series. The resistance 3 may be many times greater than the resistance 1 to enable a small condenser to be used. It may be adjustable for effecting compensation at any frequency and may have a scale calibrated in frequencies. Fig. 3 shows a variable resistance for a bridge arm. The resistance is divided into six sections 6-11 respectively connected to compensating resistances 12 ... 17 of such values that phase coincidence is obtained at all points without changing the capacity of the compensating condenser 2. A switch with six contacts 18 is provided for varying the bridge resistance and is coupled with a second switch having contacts 19 so that the correct compensating resistance is automatically connected at each value of the main resistance. Instead of a switch a double plug with pins of unequal thickness fitting pairs of sockets 18, 19 may be employed.
Patent GB-352716-A (GB)
Title: Improvements in or relating to electric incandescent lamps
IPC: H01K1/26
Filed: 1930-06-30
Abstract: 352,716. Electric incandescent lamps. FALK, STADELMANN & CO., Ltd., 83, Farringdon Road, London.-(Berger, W. ; 4, Muenchner Platz, Dresden, Germany.) June 30, 1930, No. 19845. Drawings to Specification. [Class 39 (ii).] Filaments; screens within bulbs.-In electric incandescent gas-filled lamps of the type wherein the filament is formed by a flat body consisting either of metal foil or a series of adjacent wires or coils of wire, a hood or cap located adjacent to the filament is so shaped that it concentrates and accumulates the heat and light radiated, and prevents or retards the circulation of the gas around the filament. The hood or cap may, in known manner, be made of a poor conductor of heat such as zirconium oxide, aluminium oxide, or an oxide of a rare earth metal. The face of the hood towards the filament may be provided with a metal coating, or a thin metal screen may be interposed between the hood and filament. The flat filaments are preferably formed by connecting thin tungsten wires in parallel, care being taken to provide a substantially line contact. Specification 101,547 [Class 39 (ii), Electric lamps, Incandescent], is referred to.
Patent GB-786742-A (GB)
Title: Improvements relating to torque converters
IPC: F16H39/20
Filed: 1954-07-07
Abstract: 786,742. Reciprocating pumps. BROOK, J. W. July 5,1955 [July 7, 1954], No. 19936/54. Class 102(1). [Also in Group XXIX] A torque converter comprises a hydrostatic pump operated by relative rotation between an input and an output shaft, and a hydrostatic motor driven by the pump and coupled to the output shaft. The pump and motor may be of the multi-oscillating-cylinder type. An input shaft 1 carries a crank pin for reciprocating pump piston rods 14 in cylinders 15 which are oscillatably mounted in a drum 8 fast with an output shaft 2. Motor cylinders 23 are also oscillatably mounted in the drum 8 and motor piston rods 27 co-operate with a crank pin 31 which is slidable radially across the end of a stationary shaft 10 to alter the stroke of the motor pistons. The pump draws liquid from the interior of the drum 8 and discharges into an annular space 21 formed between the drum and a body 22 having rims 18, 20 fast with the drum. The motor receives liquid from the space 21 and discharges into the interior of the drum, ports 35 in the motor cylinders alternately registering with inlet ports 36 and with outlet ports as the cylinders oscillate. The eccentricity of the motor crank pin 31 is adjustable by means of a rod 34 co-operating with the pin through a bell-crank or wedge mechanism. Rod 34 may be moved manually, or automatically in response to the pressure in the space 21. When the pin 31 is moved beyond the maximum torque position an extension 44 of the pin acts on a cam surface of a valve sleeve 40 to move the sleeve to its valve-open position in which liquid is by-passed from the space 21 to the interior of the drum. The drive is thus disconnected. Radial-cylinder or swash plate types of pumps and motors may replace the oscillating- cylinder type, or the pump only may be of the gear type.
Patent GB-1385687-A (GB)
Title: Rotary piston internal combustion engines
IPC: F02B55/04
Filed: 1972-04-29
Abstract: 1385687 Rotary positive-displacement machines BIRMINGHAM SMALL ARMS CO Ltd 17 July 1972 [17 July 1971 29 April 1972] 33676/71 and 19988/72 Heading F1F To improve the performance of a trochoidaltype I. C. engine, particularly at or near full load, air that passes through the rotor 9 for cooling thereof subsequently passes through a heat exchanger 24 (in which its temperature is reduced) before entering the working chambers. The heat exchanger may be cooled with air or water, which may also be used to cool the housing 1, 3, 4 and may have internal and/or external fins. The inducted air may also pass through a carburetter 26, which may be on the downstream side of the heat exchanger. At least one aperture for the air may be provided in an eccentric journal 8 for the rotor. The output shaft 5 carries a flywheel 10 and balance weight 11. In a second embodiment, Fig. 3 (not shown), a valve (28) linked with the throttle valve of the carburetter allows the inducted air to by-pass the heat exchanger at low loads. In a third embodiment, Fig. 4 (not shown), the carburetter has two chokes (31, 32), one choke being used at low loads and receiving air that bypasses the heat exchanger and the other choke being used at high loads and receiving air from the heat exchanger.
Patent GB-220452-A (GB)
Title: Improvements in electric signalling systems
IPC: H04L5/14
Filed: 1923-08-04
Abstract: 220,452. Western Electric Co., Ltd., (Western Electric Co., Inc.). Aug. 4, 1923. Drawings to Specification. Artificial lines. - In an artificial line for balancing an inductively-loaded cable, and comprising a network of which each section is provided with lumped inductance and capacity, each section is of such an equivalent length that oscillatory currents impulsively produced therein by the local transmitter are of frequencies which do not disturb appreciably the local receiving- device. The sections remote from the receiver may each be of such an equivalent length, that the resulting oscillatory currents would produce such disturbance but for their remoteness.
Patent GB-883084-A (GB)
Title: Improvements in and relating to amines
IPC: C07C209/64
Filed: 1960-06-08
Abstract: A method of preparing diarylamines of the benzene series comprises heating a primary amine of the benzene series in liquid phase in the presence of a catalyst comprising BF3 or a BF3 containing compound which is convertible to ammonium fluoroborate under the reaction conditions, at a temperature of from 175 DEG C.-450 DEG C., the mole ratio of catalyst to amine being from 1 : 10 to 1 : 160.  The primary amine may be aniline, an alkyl aniline, a halo-aniline or a ringhalogenated toluidine, xylidine or ethyl benzene and the catalyst BF3, NH4, BF4, a BF3 etherate, an ammonia BF3 complex or an amine BF3 complex.  The Figures accompanying the Specification illustrate reactors suitable for carrying out the process batch-wise and continuously.  Examples describe the reaction of aniline, p-toluidine and mixed xylidines.
Patent GB-1094684-A (GB)
Title: Food product
Inventor: SIDAWAY ERNEST PALLANT
IPC: A23L17/00
Filed: 1965-05-12
Abstract: A fish food product, which may be used for sausage filling comprises a chopped mixture having the composition:-  .White fish fillets.46.9-75% .Pork fat.10-30% .Rusk.1.5-15% .Water.1-10% Preferably the proportions are:- .White fish.55-75% .Pork fat.10-25% .Rusk.5-15% .Water.1-3.5% and up to 70% of the rusk may be replaced by an equal weight of soya flour.  Seasoning and colouring may also be added.
Patent GB-684919-A (GB)
Title: Improved machine for spreading coated chippings on road and like surfaces
Inventor: WHARTON WILLIAM
IPC: E01C19/18
Filed: 1950-08-14
Abstract: 684,919. Laying down materials. OLDING & CO., Ltd., J. July 16, 1951 [Aug. 14, 1950]. No. 20130/50. Class 107. A machine for laying down road chippings comprises a hopper 1 for the chippings disposed transversely of the machine and tapering to an outlet 4 at the lower end, and has a roller 11 extending along the outlet and rotating at a speed proportional to the rate of travel of the machine, e.g. by being geared to the road wheels or other rotatable supports. The roller bears a number of spaced projections 13 in rows on its periphery and these projections pass between the teeth of a pair of members 14 disposed at opposite edges of the outlet. Additional breaking rollers 18, 20, 24, 26 may be provided each with projections 13<SP>1</SP>. Members 14 may be of rubber or non flexible materials resiliently mounted. Screws 16 adjust the gap between the roller and teeth, to suit chippings of different sizes. According to the Provisional Specification the members 14 may be hinged or freely mounted at the lower end of the hopper and held in position by spring means, or they may be of rubber reinforced by thin sheet steel. The projections of the outlet roller may be similarly shaped to the teeth on members 14.
Patent GB-317468-A (GB)
Title: Improvements in treatment processes for textiles, leather and the like
IPC: D06M13/144
Filed: 1929-07-02
Abstract: 317,468. B÷hme Akt.-Ges., H. T. Aug. 18, 1928, [Convention date]. Fibres, batching etc.; yarns, treating with liquids.-In processes for softening, &c. textile fibres the materials are treated with agents comprising alcohols corresponding with the higher fatty acids such as oleio and stearic alcohols. In treating fibres the alcohols may be dissolved in an organic solvent such as benzine, turpentine, pyridine or may be used as aqueous emulsions produced with agents such as sulpho-acids, sulphonated oils, &c. Processes referred to in which the substances are useful are the greasing or fatting of crude fibres, the sizing of yarns before weaving and the dressing of finished fabrics; the materials so treated may be wool, cotton, silk, and especially artificial silk. Specifications 272,919; and 307,472, [Class 81 (i), Disinfecting &c. J, are referred to.
Patent GB-614121-A (GB)
Title: Improvements relating to the lubrication of bearing bushes
IPC: F16N9/02
Filed: 1946-07-08
Abstract: 614,121. Bearings. SHAW, J. L. July 8, 1946, No. 20328. [Class 12 (i)] A composite bush which may be used as a floating bush for a connecting rod big-end bearing has one or more lubricant reservoirs formed inside the body of the bush and communicating with the inner and outer bearing surfaces. As shown, the bush is formed of an outer annular member 4 in which is pressed an inner member 1, the latter having a peripheral middle reservoir 7 communicating with side reservoirs 8 via channels 13. Lubricant is fed via a port 9 and a radial passage 10 in a shaft 3 to a passage 11 leading into the middle groove. Diametrically opposed radial passages 12 lead from the side grooves 8 to convey lubricant to the inner bearing surface of the bush. Similar diametrically opposed passages 14, but lying at 90 degrees and of smaller size, convey lubricant to the outer bearing surface of the bush. The inner bearing surface of the bush may be faced with antifriction metal. Both the annular members may be phosphor bronze, or one may be of white metal or synthetic plastic material. Alternatively, the outer member may be of hardened steel and the inner member may be of phosphor bronze with a facing of white metal. The bush may be formed of two complementary half annuli.
Patent GB-721715-A (GB)
Title: Aeration of liquids
IPC: C12M1/04
Filed: 1952-08-13
Abstract: In an ore flotation process wherein a gas is forced through a porous diffuser element, clogging of the diffuser is prevented by humidifying the gas before it enters the diffuser by introducing into the gas an amount of moisture at least sufficient to saturate the gas at the temperature prevailing at the point of discharge from the diffuser.  As an additional safeguard against clogging of the pores of the diffuser, a liquid detergent, preferably an alkyl sulphate or alkyl sulphonate type detergent in admixture with sodium tripolyphosphate, may be periodically entrained into the humidified air at a point just before the air enters the diffuser.
Patent GB-572478-A (GB)
Title: Improvements relating to vapour electric apparatus
IPC: H01J13/48
Filed: 1943-12-09
Abstract: 572,478. Discharge apparatus. HEWITTIC ELECTRIC CO., Ltd., and WELLS, R. Dec. 9, 1943, No. 20579. [Class 39 (i)] In vapour electric apparatus having an electrically movable starting electrode 5, a voltage derived from the current traversing the main electrodes 2, 3 and 4 is superimposed on the voltage energizing the electrode 5 for starting purposes in order to substantially neutralise the latter voltage and render the electrode 5 inoperative during normal running. In the arrangement shown, a three-armed yoke bears coils 13 and 14 in the circuit of the main electrodes which excite a voltage in a third coil 15 which opposes the voltage in the starting circuit set up by its connection to the main supply transformer 12. The electrode 5 is moved to strike its arc by an electromagnet 7. In an alternative arrangement, the current induced in coil 15 may operate a relay to render the starting circuit inoperative.
Patent GB-279969-A (GB)
Title: Improvements in operating the tables of plate-punching and like machines
IPC: B21D28/26
Filed: 1926-08-20
Abstract: 279,969. Curchin, H. W. Aug. 20, 1926. Punching.-In machines of the class set forth in Specifications 189,932 and 256,657, transverse movement of the plate carnage 20 is effected by links 18 from a shaft 16 external to the punching machine 1. The shaft 16 is actuated from a handwheel 4 through crank gearing 13. Longitudinal movement of the carriage is effected by toothed gearing from a handwheel 5. In a modification toothed gearing is substituted for the crank gearing 13.
Patent GB-671015-A (GB)
Title: Improvements in or relating to machines suitable for separating stitches
IPC: A43D91/00
Filed: 1950-08-22
Abstract: 671,015. Stitch-separating machines. BRITISH UNITED SHOE MACHINERY CO., Ltd. Aug. 22, 1950 [Aug. 23, 1949], No. 20713/50. Class 17 (ii). A stitch - separating machine has a readily adjustable blade-like work - feeding dog and stitch-separating tool 20, and improved means for supporting and locking a yieldingly - mounted work support 28 against depression under the downward thrust of the indenting tool 22. The work piece is advanced over the support 28 by the feed dog 20, which, in its work-feeding stroke, travels idly over a portion of each stitch and then engages the interval between the stitches to advance the work piece and effect also a preliminary indentation therein, into which the indenting tool 22 is subsequently lowered, to deepen it, after the feed dog has been retracted. Presser feet 24, 26, spaced apart to enable the feed dog 20 and indenting tool 22 to operate between them, serve to hold the work stationary during the indenting operation and their front faces serve as gauges against which the shoe upper is held, either by the operator, or by a component of cross-feed imparted to the work table 28 as it rotates idly during each advance of the work. Such component of cross feed may be adjustable. The various mechanisms 20, 22, 24, 26, 28 are mounted on a column 30, Figs. 2, 3, supported by a base on the floor and are respectively operated by eccentrics 44, 104, 168 (for 24 and 26) 298 mounted on a common shaft 36. The work support 28 is supported indirectly by a plunger 224, Fig. 4, and an air chamber 280 partly filled with liquid under air pressure and, by closing a valve 270, in a conduit 272 between the plunger cylinder 226 and chamber 280 containing compressed air, by mechanism driven from shaft 36, the liquid may be caused to provide a rigid support for the work table 28. Air pressure in the chamber 280 acts on the plunger 224 through the liquid in the conduit, when the valve 270 is open, to resist yielding of the support 28. Pressure on a treadle 248 causes the work table 28 to be pulled down to permit a work piece to be inserted between the table and the presser feet 24, 26. Release of the treadle permits the fluid pressure mechanism shown in Fig. 4 aided by springs 250, 253, to raise the work table to working position, when the various instrumentalities operate in sequence.
Patent GB-1048886-A (GB)
Title: Improved refractory and process for making the same
IPC: C04B35/10
Filed: 1964-05-20
Abstract: Refractory bodies are produced by wet milling a mixture of 15-30% hydrated alumina, 85-70% calcined alumina, 1-8% zirconium silicate and 0.2-4.0% titania to a particle size of less than 40 m  at a pH of 4-6, coagulating by the addition of small quantities of an oxide which forms a spinel with alumina, e.g. boria or zinc oxide and sintering.  The sintered refractory may be granulated, mixed with a further wet milled mixture, shaped and fired.