baber/WOPTO huggingface dataset:
Patent GB-376396-A (GB)
Title: Apparatus for administering electrical treatment
IPC: A61N1/02
Filed: 1931-12-17
Abstract: 376,396. Administering electricity. ELECTRONAL, Ltd. and NICOL, J. H., Aberhill, Methil, Fifeshire. Dec. 17, 1931, No. 11581. [Class 81 (ii).] An apparatus for administering electrical treatment comprises a high-frequency current generator including an induction coil and combined choke and transformer 1, 2 housed in a container 3 formed as a seat 4 for the patient, a grid or like electrode 5 in the seat being connected to the pole 6 of the generator. The other pole 7 is connected to an applicator (not shown). The container 3 is divided by a partition 8 into a compartment 9 containing the generator &c. and a compartment 10 containing drawers for applicators &c. A transverse partition 13 serves as a control panel for the apparatus and carries the necessary connections and switches. Hinged doors 19, 20 are provided at each end.
Patent GB-423232-A (GB)
Title: Improvements in and relating to methods of regulating the speed of direct current motors
IPC: H02P7/26
Filed: 1933-04-20
Abstract: 423,232. Rectifying alternating current. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin) April 20, 1933, No. 11588. Void [Abridged as open to inspection under Sect. 91 of the Acts, Oct. 23, 1933]. [Class 38 (ii)] [See also Group XXXVII] The armature 11 and field 12 of a direct - current motor 10 are supplied respectively from anodes 16 and 18 of a vapour electric discharge rectifier 15, connected to an alternating - current supply ; and control grids 21 for the anodes 18 are provided whereby the field strength, and, therefore, the speed of the motor may be varied. Control grids 17 for the anodes 16 may also be provided. The phase relation of the voltages applied to the grids 21 and the anodes 18 may be changed by means of a rotary transformer. Alternatively, an alternating voltage of variable amplitude, or of constant amplitude and phase, supplemented by a direct voltage, may be applied to the grids.
Patent GB-679917-A (GB)
Title: Improvements in or relating to the manufacture of growth promoting preparations for plants
IPC: A01N37/02
Filed: 1949-05-02
Abstract: A preparation for promoting plant growth comprises a highly active growth promoting substance such as indole acetic, indole butyric, naphthylacetic or 2.4 dichlorphenoxyacetic acids (or their derivatives such as salts amides or esters) with which is incorporated as a synergist a branched chain fatty acid (or a derivative thereof substituted in the carboxyl group), which acid is inactive as a growth promoting substance and contains an aliphatic hydrocarbon radical or is substituted in the branched chain by a hydroaromatic, aromatic or araliphatic hydrocarbon radical such that the total number of carbon atoms is 10-16 in the case of either of the first two of the mentioned radicals and 11-16 in the case of either of the last two.  Examples of the branched chain fatty acids constituent are di n-amyl, di n-hexyl, di n-heptyl, tri n-propyl acetic acids and their isomers, di (cyclohexyl methyl) acetic acid and dibenzylacetic acid.  It is preferable that the molecular size of the synergist acid is of the same order as that of the highly active growth promoting substance used.  For x mol/litre of the synergist 0.05x to x mol/litre of the growth promoting substance are suitably employed and the preparations may be applied as solutions on a solid carrier such as talcum or bolus alba, or sprayed as aerosols.  An example relates to solutions containing 1, 0.4 and 0.1 mol/litre of alpha naphthylacetic acid each mixed with a solution containing 4 mol/litre of di n-amyl acetic acid.
Patent GB-660861-A (GB)
Title: Improvements in and relating to non-linear amplifiers
IPC: H03F9/02
Filed: 1949-05-03
Abstract: 660,861. Magnetic amplifiers. BRITISH THOMSON-HOUSTON CO., Ltd. May 3,1949 [May 7, 1948], No. 11777/49. Class 40 (iv). Relates to magnetic amplifiers designed to produce second harmonic output voltages or signals in response to direct current input signals. In one arrangement a pushpull output is provided together with elimination of second harmonic voltages from the signal circuit. In Fig. 1 series-connected reactor windings 2, 3 around the outer limbs of a three-limb core 1 are connected directly across the A.C. supply 4 and in parallel with a centre-tapped resistor 6 to form a bridge circuit with output taken from terminals 7, 8 connected respectively to a point between the windings 2, 3 and to the centre tap on resistor 6. The latter is precision adjusted to effect bridge balance and eliminate the fundamental frequency component of voltage between output terminals 7, 8. With D.C. applied to signal winding 5 on the centre limb of core 1 the respective flux densities in the top and bottom portions of core 1 reach their maxima during opposite half-cycles of the applied A.C. and this produces a second harmonic output voltage between terminals 7, 8. The theory underlying the action is explained with the aid of a hysteresis curve and current and flux wave forms, Fig. 4 (not shown). Fig. 1 is defective in that second harmonic voltages are induced in the signal circuit and this same defect occurs in another arrangement, Fig. 2 (not shown), wherein the basic element in Fig. 1 is duplicated to provide a push-pull output. If in Figs. 1 or 2 the impedance of the A.C. input circuit is low a choke or filter should be in series therewith. Fig. 3 is similarly a combination of two Fig. 1 basic elements but in this case the design is such that second harmonic voltages cancel out in the signal circuit. In Fig. 3 a phase-shifting network comprising resistors 16, 17 and capacitors 18, 19 provides current through the primary of transformer 20 which is 90 degrees out of phase with the A.C. applied to reactor windings 2, 3 on the first core 1. The secondary of transformer 20 is connected to the reactor windings 12, 13 on the second core 11 so that the fundamental frequency components of flux in cores 1 and 11 are 90 degrees apart to provide voltages 180 degrees out of phase between terminals 7, 8 and 8, 15, respectively. The second harmonic components are also 180 degrees out of phase in the two oppositely wound signal windings 5, 14 so that no second harmonic voltage is induced in the signal circuit. The centre tapped resistors 6, 21 provide means whereby the fundamental frequency components of voltage between terminals 7, 8 and 15, 8, respectively, may be balanced out independently. In all the arrangements an adjustable resistor 9 and capacitor 10 in series between the tap and one end of resistor 6 eliminates from the output any quadrature component of voltage at the fundamental frequency. In Fig. 3 duplication is necessary with tapped resistor 21 similarly associated with resistor/ capacitor combination 22, 23.
Patent GB-953715-A (GB)
Title: Suspended particle counter
IPC: G01N15/14
Filed: 1961-03-30
Abstract: 953,715. Sizing particles photo-electrically. ROYCO INSTRUMENT Inc. March 30, 1961 [April 26, 1960], No.11780/61. Heading G1A. [Also in Divisions G4 and H3] Particles suspended in a fluid are sized by detecting pulses of light scattered by them, applying photo-electric pulses generated thereby to a discriminator and counting the output pulses from the discriminator. A pulse integrator provides an indication of the mean light diffused. Light from a source 200, Fig. 5 impinges upon air in a pipe 205, and light scattered thereby is detected by a photomultiplier 18. The output of photomultiplier 18, Fig. 1 passes to a circuit 30 (see Division H3) which provides an amplified version of its input on line 35 and an integrated output on line 31. The pulses on line 35 pass to a discriminator 40 (see Division H3) which provides an output when the input lies between preset upper and lower levels. The output pulses are counted by a counter 48. The operation of the system is automatic a time switch 60 controlling the input switch 49 of a recorder 39, the input levels of discrimator 40 and the pump 208 driving air through pipe 205, so that the average light diffused by clean and contaminated air and the number of pulses in several different amplitude ranges are recorded in sequence.
Patent GB-1092153-A (GB)
Title: System for controlling the liquid level in a continuous casting mold
IPC: B22D11/20
Filed: 1965-03-19
Abstract: 1,092,153. Automatic control of continuous casting. UNITED STATES STEEL CORPORATION. March 19, 1965 [March 23, 1964], No.11845/65. Heading G3R. Deviations in the level of molten metal in a continuous casting mould produce error signals of corresponding polarity and magnitude which are applied, at a rate which is a function of their magnitude, to means which adjust the rate of pour into the mould and thereby restore the level automatically. In the arrangement described, molten metal flows from an adjustable outlet in the base of a ladle into a continuous casting mould with which is associated a number of thermocouples to detect deviations of level in the mould from a desired value. Such deviations produce voltages of corresponding magnitude and of one polarity or the other according to the sense of deviation to control the opening of the outlet by an electro-hydraulic servosystem, and/or the speed of casting withdrawal rolls by a variable Ward-Leonard drive so that the level in the mould is restored to the desired value. In Fig. 2, any deviation voltage E e  charges a condenser 62 which, through a control winding 50 of a magnetic amplifier 46, energizes a relay 54 or 60, according to the sense of deviation, so that a solenoid 48 or 49 is energized to cause hydraulic adjustment of the outlet in the appropriate sense. The adjustment is terminated after a short interval by a time delay relay 58 which also short-circuits condenser 62 so that the adjustment is made intermittent to prevent hunting. A further anti-hunting feature is provided by a potentiometer 68 which is adjusted by variations in level in the mould so that a further control winding 52 of the magnetic amplifier is energized to introduce a rate component. This component is also made intermittent in synchronism with the main control signal. In Fig. 3 (not shown), level deviation voltages are associated with biased diodes so that if they exceed predetermined values they are effective through a magnetic amplifier to vary the speed of the withdrawal rolls by varying the datum of the tachometer generator automatic speed control system associated with the Ward-Leonard drive. Speed variations exceeding predetermined limits are prevented by further biased diodes. Manually operated switches are provided to permit the ladle opening or the withdrawal speed control system to be disabled at will.
Patent GB-233145-A (GB)
Title: Improvements in or relating to washing machines for clothes and other fabric articles
IPC: D06F45/00
Filed: 1924-05-13
Abstract: 233,145. Lever Bros., Ltd., and Scott, G. S. May 13, 1924. Washing-machines with rocking or swinging receptacles; folding wringers. - The receptacle 4 which is swung on trunnions 12 in bearings 13 in the frame 1, having springs 14 to restore it to normal position, is heated by perforated gas pipes , 22 extending under the corrugated inverted-V shaped bottom clips 19 to receive the operating handle 18 when out of use may be carried by the frame, which is then covered with a flat board 24. Holes 2 may be provided in the frame to form bearings for the pivots of a folding mangle. The top of the receptacle around the aperture may be in the form of a trough 28, Fig. 5, having perforations 29 therein, and with this construction there is used a cover having a double flange 26, 27. The cover 24 for the washing- machine is extended to cover the wringer when in its folded position.
Patent GB-331300-A (GB)
Title: Improvements in and connected with chairs with tip-up seats
IPC: A47C7/58
Filed: 1929-04-17
Abstract: 331,300. Maguire, R. April 17, 1929. Folding seats.-A tip-up seat for use in theatres, picture-houses and the like, which on being depressed is held in the depressed position until the seat has been occupied and the occupant of the seat has risen is carried by a frame A provided with a curved socket B for the pivot pin H of the seat and with a rear recess D to limit the movement of the seat by engaging stop pins E on side brackets F on the underside of the seat. The brackets F has short slots G to take the pivot pin H this pin normally being held at the bottom of the slots by flat springs L. On pulling down the seat from its raised position a pivoted hook K on a sliding member I fitted under the seat engages a pin M extending from the side frame. The seat is thus held in readiness for use. When occupied the seat is depressed against the pressure of the springs L and the hook K falls away from its pin, the slide I also being moved away by its cam shaped end engaging the pivot H. When the occupant rises the seat tips up and the slide I falls by gravity into such a position that the hook K will again engage the pin on depression of the seat.
Patent GB-464659-A (GB)
Title: Fibrous products and method of producing same
Filed: 1936-04-27
Abstract: The fibres used in the production of rubber bonded products which have been compressed either moderately to give such products as upholstery pads or more strongly to give felt are subjected to a pretreatment before impregnation.  The fibres, which may be animal or vegetable, e.g. pig's or cow's or curled hair, feathers, coconut fibre, Algerian grass, wood flock, straw, seaweed, hay, are twisted into a loose rope which is then treated with steam or boiling water containing ammonia and perhaps keratin.  Or the fibres may be treated with an ammoniacal solution of keratin, agar-agar or albumen, then twisted into a rope and treated as above or with steam not containing ammonia.  The loose rope is then opened out and impregnated with rubber solution or latex which may contain water glass, gelatine, albumen or agar-agar. Cork or wood dust may be mixed with the fibres before or after impregnation.  The moulded product may be reinforced by means of strips of fabric arranged in the mould or a core of cork granules or shavings and may be covered with wood or textile sheets.
Patent GB-459692-A (GB)
Title: Method and apparatus for incorporating to a stream of fluid under pressure other fluid or powdered bodies
IPC: B01F23/30
Filed: 1936-04-27
Abstract: 459,692. Fire-extinguishers. PROTECTION ET EXTINCTION, 45, Boulevard Gouvion Saint Cyr, Paris. April 27, 1936, No. 11939. Convention date, July 31, 1935. Addition to 459,674. [Class 47 (ii)] [See also Group II] The apparatus for mixing powde: with a fluid in flow described in the parent Specification is modified (1 ) by forming the upper edges 1 of the channel 3 independent of the walls 6 of the container and terminating at a higher level than the walls so as to form an overflow, or (2) ir the form in which the apparatus is fitted with a tight lid, by providing the lid with suction and discharge valves.
Patent GB-1308662-A (GB)
Title: Buildings including prefabricated modular elements
IPC: E04B1/348
Filed: 1970-03-12
Abstract: 1308662 Prefabricated buildings J H WILLINGHAM 12 March 1970 [14 March 1969] 11946/70 Heading E1A A multi-storey building is constructed from prefabricated units of T-configuration and channel section respectively, the channels 6 serving to form hallways H, elevator lobbies EL and an elevator tower T whilst the T- shaped units 2 form cells C. The flanges of adjacent T-units are interconnected to form a common ceiling and floor and are blankedoff at the ends of the building by L-shaped wall members 20, the building being mounted on columns 14 supported in turn on a bore 12 having foundation piles, see Fig. 3 (not shown). The members 2, 6 may be made of plastics or concrete for details of which, mode of construction and modified arrangements involving a metal framework or reinforcement the Specification should be referred to. The T-units may incorporate attachment brackets which are welded together or adjacent T-units may be interconnected by tack-welding the overlying exposed reinforcements thereof. One T-unit superimposed on another is adjustably connected thereto by the coupling depicted in Fig. 11 (not shown) whilst certain T-units may be provided with a facade or panel F integrally formed on one end thereof, see also Fig. 7a (not shown). Internal partitions, balconies, doors, windows and stairways are provided as desired whilst service conduits and fixtures are precast in the units. For numerous minor details concerning dimensions, interconnection of piping at different levels, service facilities provided, method of erection, types and different shapes of buildings possible, joints between different sections and modified T-and channel-units the Specification and remaining drawings, (not shown) should be referred to.
Patent GB-377277-A (GB)
Title: Improvements in or relating to scanning apparatus for use in television picture telegraph and like systems
IPC: H04N3/12
Filed: 1931-04-22
Abstract: 377,277. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, DOWSETT, H. M., 47, Drayton Gardens, Winchmore Hill, both in London, and CADZOW, R., The Greens, Carnwath, Lanarkshire. April 22, 1931, No. 11955. [Classes 40 (iii) and 40 (v).] An electron stream is traversed over contacts 4, Fig. 1, successively actuating light-valves 5, 6, to produce beams of light illuminating points along a predetermined path to provide one component of scanning. The electron stream is preferably produced in a cathode ray tube 1 and traversed by solenoids . 8. The lightvalves preferably comprise Kerr cells 5, 6, having a common electrode 5 ; each electrode 6 may be earthed through a leak resistance 9 to provide for its rapid discharge. Each leak resistance 9 may be replaced by a photo-electric cell illuminated at the end of each scanning line. The other component of scanning (preferably vertical) may be provided by a mirror wheel, and in one modification light from a source 10, Fig. 2, passing successively through the Kerr cells 6 falls on a mirror wheel MW, such that each mirror 19 scans one vertical zone of the picture PS. At the transmitter, the cathode ray stream is of constant intensity, but at the receiver, the cathode ray stream is controlled in accordance with the picture signals and the electrodes 6 are discharged more slowly than at the transmitter. According to the Provisional Specification, the electrodes 6 of the Kerr cells may be discharged by providing earthed contacts adjacent the contacts 4, so that the cathode ray beam in its movement momentarily connects a contact 4 to earth.
Patent GB-552567-A (GB)
Title: Improvements in textile finishing
IPC: D06L4/29
Filed: 1941-09-18
Abstract: 552,567. Bleaching textiles. MATHIESON ALKALI WORKS. Sept. 18, 1941, No. 11990. Convention date, Sept. 27, 1940. [Class 15 (ii)] Cellulosic textiles, e.g. cotton, linen, rayon or cotton and wool, or rayon and silk fabrics which contain pre-dyed threads are subjected to hot alkaline solution containing a little sodium silicate, steamed, and without intervening kiering, steamed while wet with a bleaching solution ; the sodium silicate pretreatment preventing dyes running during the bleaching treatment. The pH range of the sodium silicate solution may be 9.5 to 12 and may be attained by added strong or weak alkali, e.g. sodium hydroxide, or sodium carbonate, tetrasodium pyrophosphate or trisodium phosphate, and a detergent is preferably used, e.g. a soap or a synthetic organic detergent. The textile may be heated while in the sodium silicate solution; it may be steamed at this stage also, e.g. for 30 mins., or less if at a pressure above atmospheric. The preferred bleaching solution includes sodium chlorite which may be acidified to a pH value from 3.0 to 5.5 using acetic, phosphoric, hydrochloric, sulphuric, or nitric acid, and may include a synthetic organic detergent and may be applied, after the pre-treatment and washing, by immersion, padding, or spraying whereupon the textile is steamed for e.g. 30 mins. Specification 552,711 is referred to.
Patent GB-552027-A (GB)
Title: Machine for winding coils
IPC: H02K15/085
Filed: 1941-09-19
Abstract: 552,027. Coil-winding apparatus. GENERAL MOTORS CORPORATION. Sept. 19, 1941, No. 12022. Convention date, Sept. 27, 1940. Drawings to Specification. [Class, 35] .[Also, in Group In a machine for winding coils, particularly in the stators of dynamo-electric machines, having a rotatable"coil-holding.. cage and a reciprocable wire-laying needle, the coil is oscillated in opposite directions by separate power means so controlled that they can only operate alternately. Preferably one power, means is an air pressure cylinder and the other, an electric motor, also operates the wire-laying needle in both directions. A complete automatic machine is described which winds four four-pole stators simultaneously with three concentric coils per pole, alternate poles being reversed. The oscillation of the cage is controlled by motor-driven cam-shafts carrying separate cams each designed to give the correct angular movement for a specific coil. Cain followers, one for each pole, are held against the cams by the air pressure cylinder. Pneumatic means effect successive shifting of the cam followers relative to the cams, as each coil is to be wound. The needle is mounted on a table reciprocated by a drum cam. During operation means are provided for:- (a) positively holding the cage against rotation while the needle is travelling along a slot, operated by a subsidiary groove on the needle drum cam, (b) moving a shuttle over the needle at the end of each stroke, to facilitate the laying of end loops, operated by the needle table through a rack and cam, (c) limiting the speed of movement of the' cage under the influence of the air pressure cylinder, to prevent the cam follower banging.. against the cam surface when the poles are changed, operated by a one-way clutch geared to the electric motor, (d) reducing the'speed of the motor during the' action of (c), (e) rendering the air pressure cylinder operative only at the required end of the stroke, operated through an air-valve by the needle table, (f) reversing the action of (e) when the pole is to be wound in the reverse direction, operated through a solenoid controlled air-valve by a timer disc. All operations necessary to change to successive coils and poles are effected by this timer disc which rotates once per winding cycle, and has circumferentially spaced adjustable lugs which engage various switch contacts. At the end of a winding cycle the timer disc stops the motor by applying first a reverse voltage and then a brake, Resetting is effected by rotating the cages manually to a standard position, when a switch is closed which brings the machine automatically back to a condition in which, after fresh stators have been inserted, it may be started on a fresh cycle by a push-button. A further push-button allows the machine to be stopped at any point in the cycle and restarted without resetting.
Patent GB-527847-A (GB)
Title: An improved wire severing device
IPC: B23D29/02
Filed: 1939-04-21
Abstract: 527,847. Shears ; cutten. BARDA, A. J. April 21, 1939, No. 12030. [Class 30] [Also in Group XXIII] A wire severing device comprises two members a, b each formed with an open ended slot e, and united by a pivot g disposed on one side of and within the length of slots e. In the inoperative position slots e register longitudinally. The device is designed for severing bale binding- wires. The portion c is thrust between the bale and the wire, and the handle portions d formed on the ends of members a, bare then pulled apart to sever the wire.