baber/WOPTO huggingface dataset:
Patent GB-721457-A (GB)
Title: Improvements in and relating to electric protective apparatus
Inventor: WARRINGTO ALBERT RUSSELL VAN C
IPC: H02H3/40
Filed: 1951-11-22
Abstract: 721,457. Induction relays; protective cut-out arrangements. ENGLISH ELECTRIC CO., Ltd Nov. 21, 1952 [Nov. 22, 1951], No. 27402/51. Class 38 (5). In a differential relay having a magnetic circuit in which an alternating flux is set up to induce eddy currents in a conductive armature to cause movement of the armature, the magnetic circuit or a part thereof may be saturated by a unidirectional flux to reduce or destroy the alternating flux to prevent operation of the relay. In Fig. 1, a conductive cup 3 is pivoted in the gap formed between a laminated core 2 and the poles la of a laminated frame 1 on which coils 4 are arranged. Attached to the frame 1 and core 2 is an unlaminated frame 5 with a coil 8 energized through a full-wave rectifier 9. When the coils 4 are energized by alternating current dependent of the unbalance of a protected circuit, there is a tendency for the cup 3 to rotate, but if the coil 8 is sufficiently energized by the through current, the unidirectional flux set up through the frame 5, the poles la and the core 2 will render the coils 4 ineffective. In Fig. 2, the laminated frame 10 has operating coils 17, polarizing coils 12 and restraining coils 19. Associated with the coils 17 is a winding 11 short circuited by a condenser 18 to make the operating flux dependant on the fundamental of the current in the circuit to be protected and to make it lead with respect to the flux due to the polarizing coils 12. A shading ring 19a causes the flux due to the restraining coils 19 to lag the polarizing flux. In this case the additional restraint provided by the unidirectional flux set up by the winding 22 in the frame 5 may be made dependent on the second harmonic of the fundamental frequency of the protected circuit.
Patent GB-911489-A (GB)
Title: Serine derivative
Inventor: LEVI IRVIN
IPC: C07C/
Filed: 1960-08-08
Abstract: The invention comprises O-dichloroacetyl-DL-serine derivatives of the general formula <FORM:0911489/IV (b)/1> (wherein R represents hydrogen, methyl or ethyl) and non-toxic addition salts thereof. These compounds may be prepared by reacting serine or its methyl or ethyl ester with glacial dichloroacetic acid and hydrogen chloride gas or dichloroacetic anhydride in the presence of an inert solvent, or by treating the corresponding N-dichloroacetyl compounds with a strong inorganic acid in the presence of an inert solvent.  The products have anti-tumour activity, and may be administered with the usual excipients.
Patent GB-893094-A (GB)
Title: Improvements in or relating to fuel injection systems for internal combustion engines
IPC: F01L25/08
Filed: 1958-08-27
Abstract: 893,094. Fuel injection systems. BOSCH G.m.b.H., ROBERT. Aug. 27, 1958 [Aug. 28, 1957], No. 27430/58. Class 7(6). [Also in Groups XXXVIII and XL(c)] In a fuel injection system of the type in which the quantity of fuel passed by an electromagnetically operated injection valve is determined by the period of discharge of a capacitor, the capacitor discharge is effected through the collector-emitter path of a transmitter so that the discharge current is substantially independent of the capacitor voltage. In the Figure, a cam 62 on the shaft of the contact breaker 12 and distributer 13 momentary closes to cause a capacitor C to charge through resistors 38 and 41. Subsequently a cam operated contact 34 closes so that the capacitor discharges at a constant rate through the collector emitter path of a transistor 30, the discharge current flowing through resistor 54 causing a second transistor 31 to become conducting and so operate the solenoid 26 of a fuel injection valve 23. The discharge continues at a uniform rate until the collector voltage reaches the knee of its characteristic when the rate decreases causing a voltage to be induced in the secondary winding of a transformer 51 such that the capacitor then discharges very rapidly. The end of the injection period is thus accurately defined since both transistors then cut off and close the injection valve. A rectifier 57 prevents the voltage induced in the transformer winding 50 during the period while the discharge current is increasing from being effective. The duration of the injection period may be controlled by varying the voltage to which the capacitor is charged, this being effected by a resistor 38 controlled by an accelerator pedal 39 and by a resistor 41 controlled by an atmospheric pressure chamber 43. The duration of the injection is also varied by controlling the discharge rate of the capacitor by means of a negative temperature co-efficient resistor 58 associated with the cooling water system.
Patent GB-173313-A (GB)
Title: The manufacture of new mordants and an improved process of dyeing basic dyestuffs oncotton
IPC: D06P3/60
Filed: 1920-09-27
Abstract: New sulphurized compounds which are mordants for basic dyes are obtained by boiling phenol, or its homologues or substitution products other than phenols containing nitrogen, with aqueous caustic alkali and sulphur.  In an example, a resinous product is obtained from o-chlorphenol, sulphur, and caustic soda lye, and is dissolved in sodium carbonate, salted out, and dried; analogous compounds may be obtained from phenol, cresols, p-chlorphenol, di-or poly-chlorphenols, or bromphenols.  Specification 22417/95 is referred to.ALSO:New sulphurized compounds which are mordants for basic dyes are obtained by boiling phenol, or its homologues or substitution products other than phenols containing nitrogen, with aqueous caustic alkali and sulphur.  In an example, a resinous product is obtained from o-chlorphenol, sulphur, and caustic soda lye, and is dissolved in sodium carbonate, salted out, and dried; analogous compounds may be obtained from phenol, cresols, p-chlorphenol, di- or poly-chlorphenols, or bromphenols.  Cotton to be dyed with basic colours is mordanted with a solution of one of the products in sodium carbonate with addition of common salt, and then rinsed and dyed in the usual manner; dyestuffs such as Rhodamine B extra, methyl violet B, and auramine O, yield the same shades as on tannin.  Cotton may also be dyed in a bath containing a substantive cotton dye or a sulphur dye together with one of the new mordants, and then after-treated with a basic dyestuff. Specification 22417/95 [Class 2, Acids and salts, Organic, &c.] is referred to.
Patent GB-334713-A (GB)
Title: Improved platen equipment for typewriters
IPC: B41J3/28
Filed: 1929-09-10
Abstract: 334,713. Triggs, W. W., (Elliott-Fisher Co.). Sept. 10, 1929. Sheet clamping and guiding arrangements; line-spacing mechanism.-In condensed-billing arrangements for flat-platen machines comprising, as described in Specification 233,971, a billholder movable on an oblique guide so that successive line-entries on the bill appear on the line on the ledger sheet, the bill-holder comprises a bill-clamp and can be attached at any one of a series of points to the guide. The-bill-holder 8 shown in the Figure is associated with an oblique guide 7 on the front 4 of the line-spacing carriage 3. The bill-holder comprises a base 9, and a. clamp 10, which is hinged at 15 to a bracket 14 and is provided with a knob 12. A member 24 on the bracket has a lug 25 and a tooth 26 for engaging the guide and notches 27 therein. The bracket is provided also with a fork 20 and jaws 16 for engaging pins 28 on the guide, the jaws being pivoted on screws 17 and connected to a spring 19. Registering-stops 29, 30 for the bill are provided on the base 9. The ledger sheet B is clamped on the platen 1, and the bill A is clamped to the bill-holder and passed under the guide and the paper-smoothing plate 5, the bill-holder being attached to guide by means of the jaws 16 and member 24. After a line has been typed, the bill-holder is moved along the guide and again attached thereto, the bill thereby receiving line-spacing movement, and successive lines on the bill being typed on one line on the ledger sheet.
Patent GB-363362-A (GB)
Title: Improvements in the manufacture and production of chrome yellow colouring matters
IPC: C09C1/20
Filed: 1930-09-15
Abstract: Chrome yellows are obtained by simultaneous precipitation of the chromates of lead and strontium or barium or both to form mixed crystals.  Sulphates of the metals may also be precipitated at the same time.  Soluble salts of the metals may be precipitated by sodium chromate with or without sodium sulphate, or an aqueous suspension of litharge may be treated with barium or strontium chloride and precipitation be effected during or after neutralization of the reaction mixture.  By effecting precipitation from alkaline solutions, an orange colour is obtained.  Examples describe the preparation of mixed crystals containing respectively lead and strontium chromates, lead and strontium chromates and sulphates, lead and barium chromates and sulphates, and basic lead chromate and strontium chromate.  Reference has been directed by the Comptroller to Specification 341,881.
Patent GB-1268046-A (GB)
Title: Improvements in or relating to boring machines for boring bearing liners
Inventor: HAYTER BRIAN
IPC: B23B47/04
Filed: 1968-06-10
Abstract: 1,268,046. Boring machines. VANDERVELL PRODUCTS Ltd. 10 June, 1969 [10 June, 1968], No. 27565/68. Heading B3C. [Also in Division F2] A boring machine for machining an internal surface of a cylindrical or half a cylindrical bearing liner comprises a rotatable boring bar 20 having cutting tools 23, 24, means to rotate the boring bar, an electric motor 16, a support 26 for a bearing liner, the bar 20 being supported by gas bearings. These bearings are in housing 21 there being a journal bearing, Fig. 2, and thrust bearings, Fig. 4. The journal bearing provides a radial pressure of 450,000 lb./in. whilst the thrust bearings give a thrust of 700,000 lb./in., there being two thrust bearings acting in opposite directions. A rotor of the electric motor is also mounted in a similar journal gas bearing. The electric motor 16 is mounted on a slide 13 which is fed by an hydraulic or pneumatic ram 14. Liner support 26 has a liner ejector plunger 32 and is fed by a ram 29. A nozzle 34 directs coolant on to the working area. When machining half a cylindrical bearing axis 18 can be inclined to the liner axis with the cutting radius of cutter 23 being slightly larger than that for cutter 24 and its centre of rotation further from the inner surface of the liner so that relief areas are formed adjacent the ends of a liner.
Patent GB-158117-A (GB)
Title: Improvements relating to spring frames for motor cycles
IPC: B62K25/28
Filed: 1919-11-07
Abstract: 158,117. Ayres, W. E. M. Nov. 7, 1919. Spring devices.-The gear-box c of a motorcycle is carried by the rear-wheel frame a, which is pivoted to the main frame at a point e slightly above a plane passing through the countershaft h and the crank-shaft. The springs a<1> are attached to pivoted shackles i.
Patent GB-766842-A (GB)
Title: Improvements in or relating to lever escapements
Inventor: BOULT CECIL LESLIE
IPC: G04B15/12
Filed: 1954-09-23
Abstract: 766,842. Clocks and watches. ANGLO CELTIC WATCH CO., Ltd. Aug. 16, 1955 [Sept. 23, 1954], No. 27575/54. Class 139. In a lever escapement the lever is adjustable towards and away from the arbor of the escape wheel. The pivotal arbor 25, Fig. 2, of the lever 11 is located in bearings in plates 19, 20 spaced by sleeves 21, 22 which receive screws 28, 29 which fix the plates 19, 20 to the frame plate 10. The screw 29 is loose in the sleeve 22 so that when it is unscrewed from the plate 10, the assembly 19, 20 may pivot slightly about the screw 26 to move the pallets 13, Fig. 1, towards and away from the teeth 14 of the escape wheel 15.
Patent GB-653165-A (GB)
Title: Improvements in and relating to rings for textile ring spinning machines
IPC: D01H7/60
Filed: 1948-10-23
Abstract: 653,165. Rings for textile spinning machines. DOBSON & BARLOW, Ltd., and PIMLEY, G. H. Oct. 23, 1948, No. 27580. [Class 120(ii)] A ring for a textile ring spinning machine is made in three circular parts; the first part 10 is mounted on the second part 3 which is mounted to be partially rotatable in a hole 2 in the ring rail 1, the part 10 being resiliently held down and held concentrically on the second part 3 and the engaging faces of the two parts having complementary portions of varying depth whereby as the second part 3 is turned the first part 10 is raised or lowered ; the third part is a flange 11 on the first part 10 for carrying the traveller. As shown the means for holding down part 10 comprise a screwed pin 13 carrying, below the ring rail, a spring 15 which is tensioned by a washer and nuts below it, and the complementary engaging portions of the two parts 10 and 3 consist of upward projections 7 having inclined faces 9 on the top face of part 3 and inclined portions 16 on the under face of part 10. Holes 8 are provided to receive a tommy bar for turning part 3.
Patent GB-665069-A (GB)
Title: Improvements in or relating to horticultural tools
IPC: A01G1/12
Filed: 1949-10-28
Abstract: 665,069. Gathering tea. GREENWOOD, C. M. Oct. 12, 1950. [Oct. 28, 1949] No. 27634/49. Class 6(iii). A tool for gathering tea and like vegetation comprises a guillotine blade 29, adapted to be passed over a series of spaced shear blades 28 in succession, the tool having a tray 26, or 58 (Fig. 10), for the reception of the shorn vegetation. The blade may be mounted in a rectangular frame 21, 22 across which are mounted the shear blades 28. Both the frame and the blade 29 have handles 34 and 35 and the blade 29 may have a V- shaped cutting edge 38. One end of the frame has an extended floor 26 forming a tray for the cut leaves. In a modification, the side members 21, 22 of the frame are tubular and house springs which urge the guillotine blade into its retracted position. The blade 29 may carry an abutment 36 for sweeping the cut, leaves into the tray 26, and both the abutment and tray may be perforated. In the construction shown in Fig. 10, the blade 29 is secured to one of a pair of pivoted arms 49, 51, having handles 52, the blades 28 being mounted between arcuate cross-members 53, 54. The arms carry the abutment 58 and tray 57 respectively. The blades 28, 29 may be of aluminium alloy or synthetic resin. According to the Provisional Specification, the shorn vegetation may be collected by a flexible band attached to the moving blade.
Patent GB-278898-A (GB)
Title: Improvements in and connected with registering and/or recording devices for electromotors
IPC: G07C1/08
Filed: 1926-11-05
Abstract: 278,898. Fiddes, J. Nov. 5, 1926. Indicating number and time of working of machines; recording particular operations.- Means for registering or recording the work done under certain conditions by one or more machines driven by an electric motor, include electromagnets which only operate to control the registering or recording devices when a predetermined minimum current is exceeded. The gauge or wire and number of ampere turns of the magnet 2 are so arranged as to attract the armature 3 only when this minimum is exceeded, the armature being pivoted at 5 to the pole shoe and rigid with an arm having an adjustable screw 7 and adjustable balance weight 6. This armature also is attached to a rod 8 carrying a shoe which brakes the balance wheel of the clockwork-driven recorder 9, so that the latter functions only when the magnet is energized. The record strip or disc is perforated by hand by a button attached to a pin. Varius recorders may be arranged to record the times the motor is running idle, or on normal load, or on overload. Registers may be adapted to count the number of fames the motor is overloaded &c. Where the recorders &c. are at a distance from the armature 3, the latter may close the circuit of another electromagnet connected to the recorders. Some of the magnets, instead of directly controlling the clockwork device of the recorders, may operate light spools carrying record strips which are brought into contact with a clockwork-operated cylinder.
Patent GB-1481255-A (GB)
Title: Rotary clutch assembly
IPC: F16D13/50
Filed: 1975-07-02
Abstract: 1481255 Friction clutches DAIKIN SEISAKUSHO KK 2 July 1975 [22 July 1974] 27865/75 Heading F2C In a motor vehicle friction clutch in which a driven disc 16 is clamped between a driving flywheel 10 and a presser plate 3 by circumferentially spaced helical springs 7, centrifugal deformation of the springs 7 is reduced by tubes 2 surrounding the springs and having a radially inwardly directed flange 1 which is held against the presser plate 3 by the springs 7. The springs 7 are located by projections 4, 6 respectively fast with the presser plate 3 and a cover 5. The ends of the projections 6 lie within the tubes 2 at all times. The tubes 2 may be carburized to improve their hardness and smoothness.
Patent GB-487199-A (GB)
Title: Improvements relating to the manufacture of starch paste
IPC: C08B30/12
Filed: 1937-10-13
Abstract: 487,199. Starch paste. DISTILLERS CO., Ltd., and COPPOCK, P. D. Oct. 13, 1937, No. 27906. [Class 121] A continuous supply of starch paste is obtained by intimately mixing continuous streams of steam and of an aqueous suspension of amylaceous material, the streams being so regulated as to convert the mixture to starch paste of the required consistency. In the form shown, starch suspension is drawn from a reservoir 8 into nozzle 5 and pipe 6 by steam from nozzle 2, and is cooked by the steam, the paste collecting in steadying chamber 10 and then passing through pipe 11.
Patent GB-742035-A (GB)
Title: Process for preparing acth pectic compounds and purified acth derived therefrom
IPC: C07J5/00
Filed: 1953-10-12
Abstract: The invention comprises ACTH pectic compounds and purified ACTH prepared therefrom.  ACTH is mixed with pectic acid, pectinic acid having a methyl ester content of up to ten per cent or one or more metal salts of such acids, such as calcium, zinc, aluminium, sodium and potassium pectates.  The pectic substance may be dissolved in water or suspended in ethanol, methanol or isopropanol.  The pH of the reaction mixture is adjusted to between about 2,5 and about 5 by addition of hydrochloric, acetic, tri-chloracetic or sulphuric acid or sodium or ammonium hydroxide.  The mixture is allowed to stand while the precipitate settles, centrifuged and the precipitate washed acid and dried with acetone.  ACTH may be obtained from the pectic compound by elution of a column of the pectic compound with a strong acid, preferably of pH less than 1,5 e.g. sulphuric, perchloric, nitric or hydrochloric acid.  The acid eluate may be mixed with acetone, methyl ethyl ketone, ethanol, propanol or other precipitating agent or it may be dialysed and the non-dialysable portion lyophilized.  Numerous examples of both procedures are given.
Patent GB-1464887-A (GB)
Title: Converter station with parallel-connected static converters
Inventor: JUHLIN L-E
IPC: G05F1/00
Filed: 1974-06-25
Abstract: 1464887 Controlling converters ASEA AB 25 June 1974 [26 June 1973] 28066/74 Heading H2F A converter station for connecting a HVDC line and an A.C. network comprises a number of parallel-connected converters I ... III and a regulator 1 for setting the transmitted power or some other quantity, each converter I ... III having its own regulating circuit 12 provided on its input side with a limiter 13, the outputs of the limiters 13 being combined in a summation device 3 and fed via a multiplier 4 to the input side of the regulator 1. The limiters 13 are preferably further controlled by inputs 14 from safety circuits. As described, the current in each converter I ... III is monitored by transductors 11 and fed to the individual regulating circuits 12. A line power signal is derived by multiplying a line voltage signal from potential divider 5 by a current order signal derived by summing at 3 the outputs of the limiters 13 and comparing the result with a desired power signal injected at 2. A converter I is disconnected by feeding a signal to terminal 14 which sets its limit to zero. This will result in a reduction in the sum from the summation circuit 3 which increases the current order passed by the remaining limiters 13. The limiters 13 have a delayed response to signals from the regulator 1 but a fast response to signals injected to terminals 14. Starting.-When the station is to be connected to the line L, the regulating circuits 12 are set to maximum control angle and the tap changers of the converter transformers (not shown) should be equally set. The limiters 13 are then released one at a time.
Patent GB-1048516-A (GB)
Title: Liquid circulating system having improvements in structure for connecting heat exchange devices therein
IPC: F24H9/12
Filed: 1965-07-02
Abstract: 1,048,516. Heating and cooling systems. INTERNATIONAL STANDARD ELECTRIC CORPORATION. July 2, 1965 [July 3, 1964], No. 28073/65. Heading F4U. In a liquid circulating heating or cooling system comprising a main pipe loop 12 to which one or more heat-exchangers are connected, the inlet of a heat-exchanger is connected to the main loop by a riser 23 having an external deformation 27 near its end to limit the penetration of the riser into the main loop, the outlet of the heat-exchanger having a riser 24 with a similar deformation 28 spaced further from its end to permit greater penetration into the main loop. The joints are rendered liquid-tight by soldering. The constriction produced by the riser 24 in the main loop creates a Venturi effect and a pressure drop is created between the risers.
Patent GB-1182951-A (GB)
Title: A Combined Drying and Finishing Apparatus for Molded Pulp Articles.
IPC: D21J7/00
Filed: 1967-06-19
Abstract: 1,182,951. Pulp moulding. DIAMOND INTERNATIONAL CORP. 19 June, 1967 [4 Jan., 1967], No. 28200/67. Heading B5A. A pulp moulding apparatus comprises a first rotary support for the suction dies and a second rotary support for the transfer and pressure dies. The wheel 14, Fig. 1, carries rows of radially disposed suction dies 22 each row of which has an associated orienting arm carrying a cam follower 26 which rides a cam track 28. The dies are immersed row-by-row in slurry 32 in a tank 30 to receive a pulp deposit preform which is removed by the finishing assembly 16 comprising a plurality of transfer-pressing and finishing dies 34 each having a support shaft 38, Fig. 2, from which support members 40, 42 depend. A manifold assembly 54 to which vacuum and/or air is supplied, is periodically moved radially with respect to the shaft 38 by a motor driven crank and connecting rod drive 44, 46, 48 and carries a pressing die 72 which is urged outwardly by springs 74 and the operative face of which is connected to the manifold 54. Each die 72 includes a resistance heater plate 82. Each transfer die 108 is carried by a carrier 96 periodically rotatable through 180 degrees between a position in which the die co-operates with and removes a preform from a moulding die 22 (station 22<SP>1</SP>, Fig. 1) to a position in which it co-operates with a pressing die 72 (station 34<SP>1</SP>, Fig. 1). Each transfer die 108 has a thermostatically controlled heater plate 112, Fig. 2, which with the heater plate 82 serves to remove steam and water vapour from articles being finished. The carrier 96 is rotated after station 34<SP>11</SP> and the finished articles F, Fig. 1, are blown on to the conveyer 18. In a modification, Fig. 11, the finishing assembly 200 comprises a plurality of compound dies 234, having die halves 308 which cooperate with moulding dies 22<SP>1</SP> and pressing dies 272. Each die 234 is moved under a hood 4 having spraying nozzles at stations A and B for waxes or dyes and heating means L.