baber/WOPTO huggingface dataset:
Patent GB-1102107-A (GB)
Title: Screening apparatus control
Inventor: YOUNG DOUGLAS LEONARD GEOFFREY
IPC: D21D5/06
Filed: 1967-01-13
Abstract: 1,102,107. Filtering-apparatus. CANADIAN INGERSOLL-RAND CO. Ltd. and BIRD MACHINE CO. 13 Jan., 1967 [18 Jan., 1966], No. 1994/67. Heading BID. [Also in Division G3] In a filtering apparatus for classifying pulp in paper-making, comprising a perforated screen 12 in a housing having inlet 8, accepts outlet 16 and rejects outlet line 20, a valve 22, 23 in the rejects line 20 is normally throttled, but is automatically opened wide if the rejects flow falls below a preset value and restored to its original setting when the rejects flow rises above a slightly higher value, thereby avoiding clogging of the rejects line. Valve 22, 23 is V-ported and moved by pneumatic motor 34 - - 42 controlled by a solenoid operated four-way valve 44, 45. Valve 44, 45 is controlled by a pressure responsive switch 68, having maximum and minimum settings 74, 72, connected to a pneumatic differential pressure cell 64 which provides an air pressure proportional to the pressure difference between taps 56, 58, respectively upstream of and on a venturi section 54 of rejects line 20. Lines 60, 62 connecting taps 56, 58 to cell 64 are kept clear of solids by continuous water feeds, equalised using rotometers 82, 84. The normal setting of valve 22, with solenoid 45 de-energised, is optimised by adjusting a nut 43 on threaded valve rod 34, which nut engages the valve housing 47. Switch 68 responds to a fall in pressure below its lower setting, energises solenoid valve 44, 45 to lift open valve 22, 23 wide, and closes the valve 22, 23 again to its preset level, indicated on scale 37, when pressure rises. The circuit may be simplified, using diaphragm type pressure transducers, a pressure differential switch working directly acrossparts of rejects line 20 or a magnetic flowmeter instead of the Venturi tube. The housing 12 incorporates an inlet overflow 10, a preliminary rejects outlet 9 and an irregularly surfaced drum 24 rotated at 3000 feet per minute peripheral speed in the inlet chamber by an electric motor. Screen 12 has circular holes of 1/16 inch diameter on 1/8 inch centres.
Patent GB-1494140-A (GB)
Title: Centrifugal casting machine
IPC: B22D13/02
Filed: 1975-06-16
Abstract: 1494140 Centrifugal castings FONT-AMOUSSON SA 16 June 1975 [18 July 1974] 02005/77 Divided out of 1494139 Heading B3F The Specification discloses the centrifugal casting process for producing cast-iron pipes described and claimed in the parent Specification, but the claims are directed to a centrifugal casting machine comprising a device 8 for depositing granular particles inside the rotary casting mould, which device is secured adjacent the end of a pouring channel and comprises at least one distributing box having means 10-13 for dropping metered amounts of particles. The metering means comprises a longitudinal slot 10 and a toothed roller 11 rotationally driven by a motor-speed reducer unit. The box may be divided into compartments along the length of the roller 11.
Patent GB-650326-A (GB)
Title: A continuous process for separating alcohols of high molecular weight from the soapsobtained in their preparation
IPC: C07C29/74
Filed: 1948-01-22
Abstract: Alcohols containing at least 6 carbon atoms per molecule are separated from the soaps obtained in their manufacture by a continuous process in which the soap and alcohol mixture is dissolved in a water-insoluble or slightly-soluble solvent in which the soap is less soluble than in water and washed in counter-current with water so that solutions of soap in water and alcohols in solvent are obtained.  Advantageously low-boiling solvents are used, e.g. aliphatic alcohols C4-C12, aliphatic or cyclic hydrocarbons, mixtures of butanol or a ketone with an hydrocarbon and cyclohexanol and preferably are less than 5 per cent by weight soluble in water. Alcohols specified are obtained by reducing coconut, palm, sperm or fish oils or may be synthetic.  Solvent is distilled from the alcohol solvent mixture and from the soap-water mixture and recycled.  The soap-water mixture may be treated with acids to liberate the fatty acids which are obtained as products and in an illustration this process is effected in continuous counter-current.  In examples: (1) the butyl alcohol solution obtained by reducing palm or coconut oils with sodium is washed in couter-current to remove sodium hydroxide, benzene added to the washed solvent and separation effected by counter-current washing with water; (2) the mixture obtained by saponifying spermaceti with potassium hydroxide in butanol is washed as in (1) after addition of butanol and xylene; (3) lanolin saponified with potassium hydroxide in butanol is washed as in (1) after addition of butanol and toluene; (4) beeswax saponified with potassium hydroxide in amyl alcohol is washed as in (1) after addition of amyl alcohol and xylene; (5) palm oil is reduced with sodium in lauryl alcohol and the mixture treated as in (1) for the removal of caustic soda and soaps; (6) palm oil in butanol 2 containing 10 per cent of a 100-140 DEG  C. gasoline fraction is reduced with sodium and washed as in (5); and in (7) spermaceti oil saponified with potassium hydroxide in butanol and xylene is washed as in (5).
Patent GB-341717-A (GB)
Title: Improvements in and connected with ignition apparatus for internal combustion engines
IPC: F02P7/063
Filed: 1930-01-20
Abstract: 341,717. Rotary distributers. NORTH & SONS, Ltd., Whippendell Road, and ALLEN, A. MASSEY-, 142, Queens Avenue, both in Watford, Hertfordshire. Jan. 20, 1930, No. 2017. [Class 38 (v).] A distributer head for battery ignition apparatus of internalcombustion engines comprises in combination with a cup-like housing and a substantially vertical spindle carrying the rotary distributer electrode and make- and-break cam, an inner ball-bearing race carried at the head of the spindle, an outer race accommodated in a recess in the bottom of the housing and a retaining ring whereby the outer race is held in the recess. The driving spindle 9 drives, through the advance-and-retard mechanism 3, an electrode 6 on a shaft 7 on which is formed the interrupter cam 8 of the make-andbreak mechanism 2. Ball-bearings for the spindle 9 are provided in the cup-shaped housing 1. An inner ball race ring 11 is frictionally mounted on a coned portion 12 of the spindle 9 and is held from axial movement by a collar 10 and a wire ring 13. Co-operating with a race ring 11 is an outer ring 14 held in a recess in the casing 1 by a retaining ring 15 fastened by screws 16. The ring 15 has a raised portion 17 which has a recess 18 containing packing material for preventing the access of oil to the distributer head. A second ball-bearing 19 is provided in an extension 20 of the casing 1.
Patent GB-1298666-A (GB)
Title: Pipe bender
Inventor: LUSTY MICHAEL WILLIAM
IPC: B21D7/022
Filed: 1969-01-13
Abstract: 1298666 Angular bending M W LUSTY 25 Feb 1970 [13 Jan 1969] 2029/69 Heading B3E A pipe bender for forming U-shaped pipe bends comprises a pair of mandrels 20, 21 each formed with an arcuate peripheral groove extending for a quadrant of a circle, the mandrels being relatively movable with respect to one another, to and from a pipe bending position, and a pair of forming rollers 24, 25 each movable around the periphery of the grooved portion of said mandrels when in the pipe bending position. The rollers are mounted on arcuate quadrant shaped supports 32 and 31 rotatable about the same axes 28, 29 as the mandrels; alternatively they may rotate about different axes. The pipe 27 to be bent is guided between the rollers by two adjustable support members 30. Independent operation of the mandrels and their supports 31, 32 carrying the rollers 24, 25 is effected by pneumatic cylinders 37, 38 controlled manually by valves 39, 40. Instead of being rotatable the mandrels may be movable laterally towards each other.
Patent GB-371913-A (GB)
Title: Improvements in and relating to electric torque motors such as for braking systems of electrically driven road vehicles
IPC: B60L7/00
Filed: 1931-01-21
Abstract: 371,913. Brakes. FLETCHER, G. H., Tapton Close, Tapton House Road, Sheffield, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Jan. 21, 1931, No. 2097, [Class 103 (i).] Brakes for the non-driver wheels of electrically propelled vehicles are applied in rough proportionality to the rheostatic or regenerative braking of the drive motors and wheels. For this purpose a torque motor 6, Fig. 12, may be mounted on the front axle 1 of the vehicle and be connected through universal joints 9 to the brakes 4 of the steering wheels 3, cranks 10 being provided, if desired, for operating the brakes also by a hand-lever. In the case of regenerative braking and where both the stator and rotor of the motor 6 have windings, these may be excited proportionally to the shunt field and armature respectively of the drive motors. Construetions of torque motors are described adapted to give a high average torque and comprising a rotor of magnetic material of H or substantially rectangular section disposed between stator poles, the stator and/or the rotor having windings and air gaps being provided in the stator or rotor to obtain the desired characteristic ; or the rotor may be made up of alternate layers of magnetic and non-magnetic material ; or as shown in Fig. 7, the leading edges of the stator poles 11, 12 and those of the rotor 36 may be chamfered to provide a variable air gap. The poles 11, 12 have windings 13, 14. In this form of motor the torque rises from zero at zero deflection of the rotor to a maximum at about 70-90‹ according to the current strength and then falls.. In another form of motor, the torque is a maximum at about 45-70‹. According to the Provisional Specification the brakes for the non-driver wheels may be applied by purely mechanical means or by fluid-pressure means or by a solenoid or by an ordinary electric motor.
Patent GB-897474-A (GB)
Title: Improvements in the working up of low pressure polyolefine dispersions
IPC: C08F6/02
Filed: 1961-01-19
Abstract: Polyolefine dispersions which have been obtained by the polymerization of alphaolefines in an inert diluent, and in the presence of a catalyst consisting of titanium trichloride and an organo-metallic aluminium compound are treated with a gaseous hydrogen halide in an amount of 0,1 to 3 mols. with reference to the organo-aluminium compound, after polymerization and prior to the decomposition and removal of the catalyst residues.  The inert diluents mentioned are aliphatic, cycloaliphatic, or aromatic hydrocarbons.  The polyolefines are recovered by conventional techniques and generally the washing water contains an emulsifier. Exemplified polyolefines are polypropylene, and polybutene.  The preferred hydrogen halide is hydrogen chloride. The organo-metallic compound may be aluminium triethyl, or diethyl aluminium monochloride.
Patent GB-545883-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B75/28
Filed: 1941-02-17
Abstract: 545,883. Two-stroke engines. AKTIEBOLAGET ATLAS DIESEL. Feb. 17, 1941, Nos. 2162 and 2163. Convention dates, March 21, 1940, and Dec. 18, 1940. [Class 7 (ii)] [Also in Group XXVI] In vertical internal-combustion engines, which have a crank-casing located above the cylinder, such as engines having oppositely moving pistons, oil is prevented from running down into the cylinder by the provision of a permanent outlet for oil overflowing from the piston. The piston 3, Fig. 2, is arranged so that it always projects from the upper end of the cylinder, and oil outlets 23 are provided at the lower part of the crank-casing, and communicate by pipes 24 with the lower crankcasing. The piston is in contact with packing- rings 20 at the upper end of the cylinder, which are held in place by a flanged member 21 having an upwardly projecting ridge 22 at its inner edge. The lower piston may be similarly arranged. Oil outlets 25 are provided below the packing-rings. The piston may have an annular drip-nose 27, Fig. 3, to conduct the oil outwardly. A separate guide-section 28, Fig. 4, may be arranged at the upper end of the cylinder with packing 20, 29 at its upper and lower ends. The guide-section may be formed with an annular recess 33, Fig. 6, which communicates with the crank-casing by vertical channels 32, the recess 33 having an oil outlet.
Patent GB-395620-A (GB)
Title: Improvements relating to safety razors
IPC: B26B21/50
Filed: 1933-01-23
Abstract: 395,620. Safety razors. SALLEY, T. P., 26, Broadway, New York, U.S.A. Jan. 23, 1933, No. 2163. [Class 30.] A U-shaped pivotal wire guard 7 which can swing under the edge of the blade 1 has pivots 5, 6 one or both of which are screw-adjustable to press offset surfaces 21 of its arms 10 into variable friction contact with the blade-ends and so prevent undesired swinging movement of the guard. The arms 10 have flattened ends and are spaced from the blade ends by washers 12, and their swinging movement is limited by fingers 19 at each side of the surfaces 21. To accommodate the pivot-screws 5, 6, the blade-shank 3 is arched at 4 and the thick back 2 of the blade is wider than usual, occupying two-fifths of the total blade-width.
Patent GB-566291-A (GB)
Title: Bleaching and scouring of cellulosic textile materials
IPC: D06L3/06
Filed: 1943-02-12
Abstract: Cellulosic textile materials, e.g. of cotton or regenerated cellulose, are bleached and scoured by circulating therethrough an alkaline solution of a hypochlorite, e.g. of sodium or calcium, an alkali metal chlorite and an organic detergent, raising the temperature of the solution and recirculating it through the materials.  Specified detergents are the sodium salt of oleylmethylamino ethanesulphonic acid, the sodium sulphate or borosulphate of octodecenyl alcohol, sodium lauryl sulphate, the sodium salts of alkylphenol- and alkylbenzene-sulphonates and sodium di-alkyl (amyl to octyl)-sulphosuccinates.  The preferred temperatures are 85-95 DEG  F. for the earlier circulation and about 200 DEG  F. for the later circulation.  In examples: (1), (2) and (3) an aqueous solution at 85-95 DEG  F. containing, in various proportions, sodium chlorite, the sodium salt of oleylmethylaminoethanesulphonic acid and sodium pyrophosphate is circulated for 5 minutes through cotton yarn, sodium hypochlorite is added and the circulation continued for 45 minutes, whereupon the temperature is raised during 15-25 minutes to 200 DEG  F. and so maintained for 20-30 minutes; (4) the detergent in (1), (2) and (3) is replaced by the sodium borosulphate of octodecenyl alcohol. Specification 561,834 is referred to.
Patent GB-582411-A (GB)
Title: Improvements in dynamometers
IPC: H02K49/04
Filed: 1942-02-24
Abstract: 582,411. Rotary-absorption dynamometers. HEENAN & FROUDE, Ltd., and WALKER, G. H. Feb. 24, 1942, No. 2398. [Class 106 (ii)] Relates to the type in which the power developed by the prime mover under test is absorbed or otherwise made use of while being measured and consists in transferring the power of the prime mover by mechanical means to the rotor of a dynamometer brake, the rotor being mechanically connected to an eddy current or other type of slipping clutch controlled by electrical means, the clutch driving or receiving power from a generator connected to a power source. The eddy current brake 1 and motor 2 are mounted in tandem on a bed 3 with the eddy current clutch 4 between them. The shaft 4a of the member 4b of the clutch is connected to the shaft 1a of the brake rotor 1b ; and the shaft 4c of the member 4d of the clutch is connected to the shaft 2a of the rotor of motor 2. The shaft la has a coupling 5 to connect up the engine shaft. The carcases 1c, 2c of brake and motor are mounted on trunnion bearings 6 supported by pedestals 7 from the bed 3. Cooling water or liquid is circulated to the clutch. The excitation current is supplied to the coils of the clutch 4 and brake by cotter and slip rings from a source preferably responsive to speed. The clutch transmits power in either direction with limited slip when fully excited and more and more slip until at zero excitation no power is transmitted. When motoring at speeds below synchronous, the clutch circuit is a, b, c, d, e, k and the brake circuit is not in use. When absorbing at speeds above synchronous, the circuits are the same. When absorbing overload torque at speeds above synchronous, the clutch circuit is a, b, c, d, e, k and the brake circuit m, n, o, p, q, r or m, s, t, u, q, r. When absorbing at synchronous speed, the clutch circuit is a, b, c, f, g, h, e, k and brake circuit m, n, o, p, q, r. When absorbing at speeds below synchronous, the clutch circuit is a, b, c, f, g, j, e, k and the brake circuit m, n, o, p, q, r. A series circuit may be used as indicated by chain dotted lines, and an excess power relay responsive to excess current generated by the motor 2 to regulate a motor regulator to alter the total resistance of the brake coil circuit may be used instead of the excess power switch 13 and rheostat 16 shown. Specifications 518,863, 533,725, 538,820 and 540,354, [Group XXXV], are referred to.
Patent GB-981647-A (GB)
Title: Improvements relating to the mounting of pulleys or the like on shafts
Inventor: SLATER ARTHUR
IPC: F16D1/096
Filed: 1963-01-18
Abstract: 981,647. Securing articles on shafts. R. & J. DICK Ltd. Jan. 9, 1964 [Jan. 18, 1963], No. 2398/63. Heading F2U. A pulley, gear or like element is secured on a shaft by a split conical sleeve 1 having grooves 7 engaged by the heads 6 of screws 5 which when tightened into the pulley hub 3 draw the latter over the sleeve 1 to contract the sleeve on to the shaft. To facilitate assembly apertures 8 are provided between the end face of the sleeve 1 and grooves 7 through which the screw heads 6 pass into the grooves 7. Prior to final tightening of the screws the hub 3 is turned relative to the sleeve 1 so that on slackening the screws 5 the heads 6 abut the groove and push the hub 3 off the sleeve. The sleeve 1 may additionally be keyed to the shaft.
Patent GB-564033-A (GB)
Title: Improvements in and relating to electric battery servicing apparatus
IPC: H02J7/02
Filed: 1943-02-16
Abstract: 564,033. Charging batteries. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 16, 1943, No. 2539. Convention date, Feb. 17, 1942. [Class 38 (iv)] Rapid testing and recharging of car batteries is provided by transportable apparatus mounted in a casing on wheels and casters and comprising a top panel provided (1) with a voltmeter 7 and selector switch 11 for testing individual cells during discharge at 200 amperes on pressing a button 12, (2) with an ammeter 6 and controls 9, 10 for coarse and fine adjustment of transformer taps to determine the charge rate appropriate to the battery, and (3) with a rotary switch 8 whereby a period of charge at high rate and constant voltage may be determined appropriate to the battery and its hydraulic condition (as set forth on an indicator table 13) followed automatically by a charge at a fixed low rate for a definite period which is the same for all batteries. The switch 8 has an off position in which contacts 20, shortcircuiting a resistance 37 in series with the primary winding of a transformer 14, are closed and contacts 19 are open. In all other positions the contacts 19 are closed to energize the transformer 14, a timing motor 17 and the motor of a fan cooling the rectifier 15. The spindle of the switch 8 is coupled by a slipping clutch to the timing motor shaft so that, after the switch has been set to any of the positions on the right half of its travel (Fig. 2) to determine the period of full rate charging, it is carried round by the motor to the off position at a slow-rate ; on entering the left half the contacts 20 open to terminate the full charge which continues until the off position is reached. The apparatus has flexible input and output leads, with suitable terminals, and test leads connected through a disengageable coupling with the voltmeter switch 11.
Patent GB-371863-A (GB)
Title: Improvements in or relating to thermionic valve oscillation generators
IPC: H03B19/10
Filed: 1931-01-26
Abstract: 371,863. Valve generating circuits. KIRKE, H. L., 53, Rodenhurst Road, Clapham Park, London, and McLAREN, J., Dalriada, Chesswood Road, Worthing, Sussex. Jan. 26, 1931, No. 2541. [Class 40 (v).] A thermionic oscillation generator of the type in which the frequency is determined by the time constant of a condenser-impedance combination as distinct from a resonant tuned circuit, comprises two valves with a common anode circuit, a control oscillation being fed into that circuit so that oscillatory potentials are applied to the anodes in opposite phase, while the oscillations generated in the grid circuits are combined in a common output circuit. The Figure shows a generator of the known multivibrator type, comprising two valves 1, 2 with cross capacity couplings 3 between the grid and anode circuits. The modification constituting the invention resides in the application of the control frequency to the anodes through a push-pull transformer 5 ; the output from the grid circuit is also from a push-pull transformer 6. By this means control by the injected oscillation is more powerful.
Patent GB-265222-A (GB)
Title: Improvements in electric discharge devices
IPC: H01J17/04
Filed: 1927-01-28
Abstract: 265,222. British Thomson-Houston Co., Ltd., (Assignees of Charlton, E. E.). Jan. 28, 1926, [Convention date]. Vacuum tubes.-In electric rectifiers operating by gas - ionization discharges, the cathode consists of two independent concentric hollow cylinders 6a, 6b of materially different diameters, the outer cylinder 6a being open at both ends and the inner cylinder 6b closely surrounding an anode 5 of smaller area than the cathode and reducing reverse discharge. The cylinder 6b of nickel &c. is connected by wires 9, 10 to the cylinder 6a of nickel, iron &c. The anode 5 comprises a rod projecting from a sleeve 8 of alumina protecting a glass sleeve 7 around the lower part of the rod 5 from electron and ion bombardment. During the half-waves when the rod 5 is positive, electrons proceed from the cylinder 6a to the rod 5 and produce cumulative ionization of the gas. During the other half-waves, electrons proceed from the rod 5 to the cylinder 6b and produce less cumulative ionization owing to the shortness of their path, thus decreasing the current during these half-waves. A wire 11 on the cylinder 6<a> extends into the neighbourhood of the anode 5 to reduce the starting voltage. The filling may be neon, helium or argon or a mixture of helium and argon at 5-20 mm.. the bulb and metal parts being previously freed from water vapour and other gases. After sealing, a getter is volatilized from a metal capsule 13 by high-frequency currents. Metallic calcium or magnesium may be placed within the capsule. To reduce the starting potential, an alkali metal such as caesium, rubidium or potassium may be introduced, a mixture of alkaline earth metal and a small quantity of an alkali metal halide being then placed in the capsule so that alkali metal and part of the excess of alkaline earth metal are volatilized. Specification 246,036 is referred to. The Specification, as open to inspection under Sect. 91 (3) (a), comprises also the use of magnesia or other refractory oxide freed from gas by heating in hydrogen to 1600-1800 C. as the material for the sleeve 8. This subject-matter does not appear in the Specification as accepted.