baber/WOPTO huggingface dataset:
Patent GB-621333-A (GB)
Title: Improvements in bushes for flexible bearings
IPC: B60G11/12
Filed: 1947-02-19
Abstract: 621,333. Resilient mountings. DUNLOP RUBBER CO., Ltd., and WILSON, H. Feb. 19, 1947, No. 4757. [Class 108 (iii)] A bush for a flexible bearing comprises an annular member of rubber or other resilient material provided in the internal periphery of each end thereof with a layer of distortionresisting material. In a preferred embodiment, Figs. 2 and 3, a bush 2, forming part of a bearing assembly, is provided at each end with a layer of rubber-treated textile fabric 1, which, when the bush is compressed on to a spindle 3, between end-plates 6, by nuts 7, prevents the ends of the bush being displaced into the space between the shoulders 3b and the inner face of the respective endplate marginal to the hole 5 therein. In a modification, Figs. 4 and 5, the bush is fitted at each end with a flanged ring 8, the internal periphery of which is flush with that of the bush such that when the bush is under axial compression, the flange 8a is clamped between a shoulder 3b of the spindle and the respective end-plate 6.
Patent GB-414736-A (GB)
Title: Improvements in apparatus for disintegrating and mixing clay and the like
IPC: B28C1/16
Filed: 1934-02-13
Abstract: 414,736. Mixing and disintegrating apparatus. MASCHINENFABRIK W. ROSCHER GES., 1839, Reichenbacherstrasse, Gorlitz, Germany. Feb. 13, 1934, No. 4778. Convention date, Feb. 14, 1933. [Classes 59 and 86.] Apparatus for mixing and disintegrating clay comprises a pan having a rotary floor surrounded by a fixed perforated wall through which the material is swept by rotating arms. The pan floor a may be extended beyond the wall b to serve as a table to receive the disintegrated material, and the arms g rotate in the opposite direction to the floor.
Patent GB-1207578-A (GB)
Title: Reading and conveying apparatus for recording media such as envelopes and post cards
Inventor: KAJITANI SEINOSUKE
IPC: B07C3/06
Filed: 1968-01-30
Abstract: 1,207,578. Feeding and delivering sheets. TOKYO SHIBAURA ELECTRIC CO. Ltd. 30 Jan., 1968 [4 Feb., 1967; 20 March, 1967 (2); 9 Sept., 1967], No. 4803/68. Heading B8R. [Also in Division G4] A reading device 9, Fig. 3, operating through a window 4 in the front plate of a magazine containing mail 15 to be sorted, senses information on the foremost envelope 15a before it is fed out of the magazine by means of holes 10a-10c in a belt 10 coming into alignment with ports 8 in a vacuum chamber 6. The envelopes are urged towards belt 10 by belts 21, the foremost envelope being held against the front wall by ports 23a in a vacuum chamber 23, while separation of the envelopes in the magazine is effected by air ejected from ports 24a. The front plate of the magazine may provide a gap between its lower edge and the front pulleys of belts 21 so that the front envelopes in the stack are slightly shingled, Fig. 6 (not shown). Separation rollers 14 prevent feeding of more than one envelope at a time. Photodetector 35 starts each reading operation as holes 10a-10c become aligned with it, and a detector 36 controls a braking device to stop the belt 10 in a predetermined position when the drive is switched off. In another embodiment, Figs. 1, 2 (not shown), belt 10 includes a window for reading device 9 and associated vacuum ports to draw the foremost envelope against the belt for reading. The envelopes are subsequently fed between belt 10 and a co-operating endless belt 30, Fig. 4, and a deflector 45 controlled by the reading device then directs the envelopes to one or other of two series of receptacles 25, 26 by way of belts 31-33. Individual receptacles 25, 26 are selected by actuation of the corresponding deflectors 34.
Patent GB-1415657-A (GB)
Title: Phase-control of 3-phase circuits
IPC: H02M1/08
Filed: 1972-02-02
Abstract: 1415657 Control systems for consuming devices such as AC motors GEC-ELLIOTT AUTOMATION Ltd 2 Feb 1973 [2 Feb 1972] 4844/72 Headings H2H and H2J In order to control consistently the switching devices used for chopping the half cycles of the supply waveform in a three phase regulating apparatus, the control signals for the switching devices are derived from the third harmonic waveforms of the output waveform of the switching devices. One phase, A, of a three phase supply system is applied to a timing circuit 1 and to a switching circuit 4 which includes two triacs and a commutating capacitor such as described in Specifications 1,415,656 and 1,415,172. The timing circuit 1 produces a pulse once in each half cycle of the phase A at a controllable angle from the beginning under the control of a circuit 3 which may represent the desired value of the load. The output pulse is applied directly to the switching circuit 4 as a switch on pulse and by way of a 90 degree delay circuit 5 as a switch off pulse thus producing an output from the circuit 4 which has a 90 degree on period. The chopped output from the circuit 4 is applied to a third harmonic filter 6 whereby the third harmonic is extracted from the chopped output waveform, the third harmonic then being rectified by a rectifier 7. The rectified signal from the rectifier 7 is applied to a voltage level detector 8 which detects the transition of the voltage upwardly through a selected level in each half cycle of the output of the rectifier 7 producing pulses which are applied to a counter circuit 9. The circuit 9 has a cycle of six and distributes the pulses to a thyristor regulator 10 such that each third pulse is applied to the same phase but in two wires to give alternate polarity gating pulses to the thyristors. The thyristors are therefore fired in a balanced relation ensured by the constancy of the derived third harmonic whatever the variation in the firing angle of the triacs in the switching circuit 4. The thyristor regulator 10 may be used in an A.C. motor control system, the above phase balance maintaining neutral currents and associated losses at a minimum.
Patent GB-565070-A (GB)
Title: Improvements in or relating to arch supports or inserts for shoes or similar articles of footwear
IPC: A43B7/22
Filed: 1943-03-25
Abstract: 565,070. Foot-arch supports. SCHOLL, W. M. March 25, 1943, No. 4854. [Class 17 (ii)] A foot-arch support 10 is formed of resilient sheet material of substantially uniform thickness, and preferably of transparent thermoplastic material such as cellulose acetate butyrate, and is shaped with a longitudinal arch 11, a transverse arch 13 at its forward end, a depression 12 at its heel end, and an upturned margin 14 extending all around except at the forward edge. By locally softening the support, specific areas may be more correctly shaped to fit individual feet. A strip of fabric 15 may be attached to the under side of the forward edge, to eliminate squeaking due to slipping. In a modified construction, the margin 14 extends along the inside of the support, round the heel, but only to the middle portion of the longitudinal arch on the outside of the support. Specification 565,071 is referred to.
Patent GB-509942-A (GB)
Title: Improved device for regulating the pressure in shelter rooms and the purifying of foul air therein
IPC: G05D16/12
Filed: 1938-02-16
Abstract: 509,942. Pressure regulating devices for airraid shelter ; ventilating. GOMREE, G., and JUNG, L. Feb. 16, 1938, No. 4858. Convention date, Feb. 16, 1937. [Class 135] [Also in Group X] A pressure-regulating device for controlling the supply of stored air under pressure to, and the exhaust of foul air from shelter rooms providing protection against air - raids and poisonous gases comprises a liquid sealed bell 12 subjected on its inside to the air pressure in the room through a conduit 8 and normally on its outside to the atmosphere ,through a pipe 14 and a two-way valve 15. Movement of the bell in accordance with the pressure in the room actuates a valve 18 controlling the supply of pure air through a pipe 9 from the storage chamber to a pipe 21 leading into the room. At the same time foul air is allowed to escape through ports 23 in the bell past the sealing liquid 13 to the atmosphere. If desired however, and more particularly when a supply of pure oxygen is available, the vitiated air may be purified by providing for the sealing liquid 13 a solution adapted to absorb carbon dioxide, such as a solution of potassium carbonate, and returned to the shelter room under the action of a blower through a branch conduit controlled by the two-way valve 15 instead of escaping to atmosphere. The movement of the bell is limited by a stop 24 to control the escape of air through the ports 23 and may operate electric contacts in the circuit of the blower or a signal device when the blower is 'hand operated. Specification 20130/12, [Class 135], is referred to.
Patent GB-685610-A (GB)
Title: Colour photographic process
IPC: G03C7/18
Filed: 1949-02-23
Abstract: 685,610. Colour photography. GANGUIN, K. O., HADDOCK, N. H., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Feb. 23, 1950 [Feb. 23, 1949], No. 4916/49. Drawings to Specification. Class 98 (ii). A multilayer false colour transparency carrying colour photographic records in yellow, magenta and cyan dyestuffs in three separate layers as described in Specification 685,607 is provided with a yellow azo dyestuff masking image in the magenta layer and/or a yellow, red or magenta azo dyestuff masking image in the cyan layer as by the methods of Specifications 645,170 and 652,953, instead of the black and white masking images of Specification 685,607. This masked false colour record is printed on to a corresponding false colour positive material which has colour formers in the layers and the latter is processed to provide a colour corrected print or transparency. Specifications 486,848 and 489,162 also are referred to.
Patent GB-576785-A (GB)
Title: Improvements in or relating to the manufacture of cellulose
IPC: D21C3/20
Filed: 1944-03-16
Abstract: Ligno-cellulosic material, particularly straw, is treated with a hot aqueous aliphatic alcohol of concentration at least 85 per cent containing a small proportion of a mineral acid, so as to render the lignin soluble in dilute alkali without causing it to be dissolved in the aqueous alcohol, and the product is thereafter treated with an alkaline solution to remove the lignin.  The first stage of the process may be effected by boiling the straw, preferably after a pre-treatment with hot dilute alkali, with aqueous ethyl alcohol of 85-95 per cent concentration containing 0.5-2.5 per cent of hydrogen chloride.  The boiling may take place under a reflux condenser.  The lignin may be removed in the second stage by boiling with sodium hydroxide solution of 0.5-2.5 per cent concentration.  The crude cellulose so obtained is subjected to further purification, for example, by means of cold concentrated and hot dilute alkali solutions, and preferably at least one bleaching treatment.  The products are suitable for conversion to cellulose esters and ethers, and for paper-making. The following aliphatic alcohols may be used, ethyl alcohol and other monohydric aliphatic alcohols, di- or polyhydric aliphatic alcohols, e.g. ethylene glycol or glycerol, partial ethers of such alcohols, e.g. methyl ether of ethylene glycol, or mixtures of such compounds with ethyl alcohol.
Patent GB-700008-A (GB)
Title: Improvements in ball-point pens
IPC: B43K29/10
Filed: 1950-02-27
Abstract: 700,008. Reservoir pens combined with flash-lights: MARLOW, G. J. Feb. 26, 1951 [Feb. 27, 1950], No. 4925/50. Class 146(3) [Also in Group XI] A ball-point pen 2 is screwed into a transparent head 11 fitted in a casing 8 housing a battery 5, a spring 7, a contact strip 5, a reflector 9 and a flash-light bulb 10. A rotatable switch 4 co-operating with a contact knob 3 serves to complete the electric circuit to the bulb 10.
Patent GB-271168-A (GB)
Title: Improvements relating to tanks for electrical apparatus
IPC: H01F27/12
Filed: 1926-02-20
Abstract: 271,168. Tucker, A. W. G., and Ferranti, Ltd. Feb. 20, 1926. Tanks with external radiator elements.-In apparatus provided with a spring-loaded valve for preventing flow of liquid from the tank b when the detachable radiator element is removed, the valve-operating spindle f is arranged entirely within the header e of the radiator and in alignment with the stem of the valve c. The valve is located within the tank and the valve casing a has a flange d to which a flange h of the header e is clamped. The spindle f passes through a threaded and glanded part g of the header and has an end j shaped otherwise than for an ordinary box key. The valve casing may extend into the tank further than as shown so as to allow the radiator to be brought closer to the tank.
Patent GB-782286-A (GB)
Title: Improvements in milking apparatus
Inventor: BROWN ROBERT PERCY
IPC: A01J5/10
Filed: 1955-02-18
Abstract: 782,286. Pulsators. SIMPLEX DAIRY EQUIPMENT CO., Ltd. May 14, 1956 [Feb. 18, 1955], No. 5002/55. Class 84. A milking machine pulsator comprises a rotor chamber having continuous and intermittent vacuum connections and a vent to atmosphere, and a rotor therein which connects the intermittent connection alternately with the continuous vacuum connection and the vent. The rotor chamber 10 is provided with a cover plate 11 sealed thereto with a gasket. The continuous vacuum connection 21 communicates with the peripheral slot 22 and via bores 23 with the intermittent vacuum connection 26. When the rotor revolves, this communication is interrupted and another peripheral slot 27 then connects connection 26 via bores 28 with a vent 29. The mechanism is driven by a worm and worm wheel from the vacuum pump.
Patent GB-264678-A (GB)
Title: Improvements in or relating to the color or ink transmitting or applying rollers of rotary printing machines
IPC: B41F31/26
Filed: 1926-02-22
Abstract: 264,678. Kroenert, M., Fischer, F., and Rathsfeld, H., (trading as Firma J. Fischer). Feb. 22, 1926. Inking-apparatus.-An inking-roller for a rotary printing-machine comprises a tube f of flexible material secured at its ends to heads d, d<1>, one of which is movable longitudinally of the shaft a to stretch the tube by a nut c rotatable on the shaft and engaging a threaded portion of the head. The nut is prevented from moving longitudinally by engagement of a flange c<3> thereon in a collar b secured by a set screw b<1>. the collar being constructed in sections to allow insertion of the flange. The roller, or a rubber tube inserted therein, may be charged with air or liquid under pressure.
Patent GB-291142-A (GB)
Title: Improvements relating to electrically operated apparatus for railway signalling and the like
IPC: B61L23/12
Filed: 1927-02-23
Abstract: 291,142. Peter, L. H., Abbott, R. S., and Westinghouse Brake & Saxby Signal Co., Ltd. Feb. 23, 1927. Signalling-instruments staff, tablet, and ticket systems.-A block or token instrument or other signalling apparatus is operated by pulsating unidirectional current transmitted to it. Interference by leakage currents is avoided. The signalling current may be derived from a direct current source 3 through an electromagnetic interrupter 4, 5 or a Neon tube interrupter or from a magneto generator 16. Fig. 1 shows the transmitting station A provided with a reversing switch 7 and the receiving station B provided with a transformer 8 and rectifiers 11, which may be of the copper oxide type, through which a direct current relay 12 is energized to close the circuit for a second relay 14 which is polarized and controls the token releasing or other apparatus. A direct current alone will not energize the relay 12 through the transformer 10 and an alternating current alone will not energize the relay 14, thus avoiding interference by leakage when no current is being transmitted from station A. If current is being transmitted, the leakage current may merely strengthen the transmitted current or may cause the interrupter to hold up and cease to function. Fig. 3 shows a leakage-protection device comprising a double-coil relay 17, one coil of which is in series with the generator 16 and normal current through which is insufficient to pick up the armatures. Excessive current causes the armature 20 to close the circuit from a battery 23 through the second winding and this maintains a break in the signal circuit at contact 21 until the reversing switch 7 is reset to normal midposition. In the arrangement shown in Fig. 4, the relay 17 when energized shunts the generator through a capacity 27 and inserts a reactance 26 in the line circuit.
Patent GB-801940-A (GB)
Title: Process for treating solid materials
Inventor: EASTMAN DUBOIS
IPC: B03D1/02
Filed: 1956-02-20
Abstract: In a process for treating solid material, a flowable mixture of particles of the material is formed in a vaporizable liquid and a deflocculating material selected from one or more of, tannins extracts, caustic soda, caustic potash, rosin soaps and molecularly dehydrated phosphates is added, the flowable material being then passed into and through an elongated tubular heating zone in which the liquid is vaporized and a dispersion of the solid particles is produced in the vapour.  The proportion of deflocculating material used varies from 1 ppm. to 1 per cent by weight.  The process may be applied to the gasification of coal in which case a mixture of coal and wated is formed and a dispersion of coal in steam is fed to a gasification reactor.  Alternatively, the process may be used to grind materials such as coal, wood, oyster shells, limestone, gypsum, chalk, clay, marl, talc, barite and metals such as magnesium and aluminium when the dispersion formed is passed in turbulent, high velocity flow through a zone following the heating zone.  Water and liquid hydrocarbons are the most suitable liquids but coal tar distillates, alcohols, glycols, mercury, diphenyl, and CC14 may be used.  The proportion of liquid and solid may be about equal or as little as 1:2 by weight.  Specifications 683,318 and 756,791 are referred to.
Patent GB-362251-A (GB)
Title: Improvements in and relating to weighing scales
IPC: G01G1/00
Filed: 1931-02-18
Abstract: 362,251. Weighing-apparatus. KNIGHT, T. and RUSHBROOKE (SMITHFIELD), Ltd., G., 67, Charterhouse Street, London. Feb. 18, 1931, No. 5167. [Class 143.] Pendulum-weight apparatus.-Relates to an automatic weighing scale of the kind wherein the parallelism of the goods plate is maintained by a check link and the weight is indicated on a fanshaped or triangular dial mounted on a pillar so as to permit of the customer observing the goods plate whilst viewing the indicator. According to the invention the check link passes through slots at the opposite sides of the pillar, and the ends of the link are connected respectively to a check arm and to a member fixedly or adjustably mounted on the pillar. The scale beam 7 is connected by flexible members 42, 40 to a cam 37 adjustably secured to the pendulum 33 by a slot and screw connection. Indicating pointers 35 at each side of the dial co-operate with charts 36. The goods pan 10 is maintained in an horizontal position by a link 17 which passes through slots 19 in the pillar. The ends of the link are connected respectively to an adjustable post 18 and to the check arm 16, each by means of three aligned knife-edges. A level 52 is supported from the base 1 and projects through the cover 53, which may be removed independently of the level. Vibration preventing and neutralizing.-An oil dashpot 56 mounted on the baseplate 1 is connected to the scale lever by an arm 60 and the speed of operation of the dashpot may be varied in known manner by manipulating a lever 61a.
Patent GB-213736-A (GB)
Title: Improvements in or relating to tins, cans, and like containers adapted to be closed by detachable lids
IPC: B65D43/02
Filed: 1923-02-22
Abstract: 213,736. Bentley, F. Feb. 22, 1923. Lever lids.-The wall of a tin or like container is formed at a depth less than the depth of the dished lid 5 with an internal annular bead 3, or with a series of projections, which serve as a seating for the lid. The edges of the lid and body are beaded and the lid can be removed by the aid of a lever inserted into the space between the two beads.
Patent GB-788912-A (GB)
Title: Improvements in or relating to demountable structures for use in erecting arches, bridges and like structures
IPC: E01D15/133
Filed: 1953-02-24
Abstract: 788,912. Supports for arch centering. TICKNER, A. (Altet, V. R.). April 15, 1954 [Feb. 24, 1953], No. 5205/53. Class 20(2) A support for centering for arches &c. comprises a base 1 fixed to a foundation on which is vertically adjustable by means of four bolts 6 a saddle 7 to which one end of the centering is pivoted by means of an aperture 14. In a modified support the centering is pivoted by means of an aperture 23, Fig. 4, to a lever 20 pivoted at 21 to upstanding supports 18 on a base composed of channel members 15 back to back and mounted on rails 32 by rollers 33 and having rollers 35 engaging a rail 34 to take the thrust of the centering. The pivot 23 is vertically adjustable by turning the lever 20 by means of a bolt 28. Specifications 742,855, 788,911 and 788,913 are referred to.
Patent GB-444360-A (GB)
Title: Improvements in or relating to television and like systems
IPC: H04N5/46
Filed: 1935-02-19
Abstract: 444,360. Television. GRAHAM, G. E. G., and BAIRD TELEVISION, Ltd., 58, Victoria Street, Westminster. Feb. 19, 1935, No. 5337. [Class 40 (iii)] The frequency of the lines or the pictures in the scanning in a receiver is automatically varied to accord with any of a plurality of different transmissions. Tuned filter circuits 3, 4 operating switches through a rectifier, or mechanical filters producing different mechanical movements, are severally operated by the linefrequency or other prominent components of the different signals. The relays vary at least one 5 of the time-base oscillators necessary for a cathode-ray tube 2. Alternatively, light from a modulated source is caused to fall on one or another of two sets of mirrors on a rotating drum, Fig. 2 (not shown).
Patent GB-525316-A (GB)
Title: Improvements in vapour condensers for motor-vehicles and particularly locomotives
IPC: F28B1/00
Filed: 1939-02-17
Abstract: 525,316. Motor vehicles. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 17, 1939, No. 5347. Convention date, Feb. 17, 1938. [Class 79 (iii)] [Also in Group XIII] A motor-vehicle and particularly a reversible locomotive driven by turbo-electric sets 13, 14 is provided with steam &c. condensers each comprising a main section 20, Fig. 2, disposed beneath the roof, and aftercooler sections 22 connected by pipes 21 to the main section and placed along the opposite sides of the vehicle, a blower 63 driven by a turbine 64, and a condensate reservoir 24. The main section includes transverse headers secured by welding to longitudinal members 43, Fig. 5, welded to flanges 44 having apertures through which external studs 47 secured to angles 45 welded to the sides of the vehicle, the weight of the headers &c. being resiliently supported through rubber discs 50 on the studs. The upper headers of the after-cooler sections are formed with projections 62 engaging in metal inserts in rubber discs 59 housed in rings 60 secured to the angles 45.
Patent GB-1409702-A (GB)
Title: Take-up reel for a vehicle safety belt
IPC: B60R22/40
Filed: 1974-02-05
Abstract: 1409702 Inertia-locking heel for safety belts INSTRUMENT-VERKEN AB 5 Feb 1974 05365/74 Heading A3V A retractor reel for a vehicle safety belt is provided with an inertia locking device responsive to acceleration of the vehicle in excess of a predetermined level, such device comprising an inertia ring 3 mounted at 4 to swing freely and supported 'by a tube 9 on a support plate 7, the ring normally being retained in the Fig. 1 position but in the event of excessive acceleration being inertially displaced to raise a pawl 12 by means of a cooperating recess and raised portion 11 into engagement with a toothed wheel 14 which carries a toothed plate 15, subsequent rotation of the reel shaft 1 in the unwind direction producing relative angular displacement of the plate 15 about the shaft and consequent locking engagement of the tooth on the plate with a ratchet ring 16. A spring 17 urges the plate 15 to its Fig. 1 position.