baber/WOPTO huggingface dataset:
Patent GB-674779-A (GB)
Title: An improved method of and apparatus for making a fibrous web for the manufacture of non-woven fabrics
IPC: D04H1/72
Filed: 1950-02-23
Abstract: 674,779. Lap-forming apparatus; openeers. JOHNSON & JOHNSON (GT. BRITAIN), Ltd. Feb. 23, 1950 [Feb. 23, 1949], No. 4727/50. Class 120(i) A substantially isotropic fibrous web, for the manufacture of non-woven fabric, is produced by forming a layer of fibres predominantly aligned in one direction, moving the fibres continuously in the direction of fibre alignment, progressively removing individual fibres from the advancing edge of the layer, depositing the individual fibres in an air stream, and removing them therefrom in the form of a web. As shown a feed cap in the form of a card web, or a pile of superposed card webs, from cards 24, passes down a shoot 26 and is fed by a feed lap in the form of a card web, or a lickerin-type combing cylinder 32. Instead of a card web, the feed lap may consist of a number of card slivers placed side by side. Fibres are dropped centrifugally from cylinder 32 into an air stream induced in a conduit 14 by fans 12. The air speed may be equal to or greater than the lineal speed of the lickerin teeth, to assist doffing. The fibres in the air stream are deposited on a rotary screen 10 from which they are removed in the form of a web 18.
Patent GB-925449-A (GB)
Title: Improvements in diversity radar installations
Inventor: BRADSELL PETER
IPC: G01S7/03
Filed: 1960-02-10
Abstract: 925,449. Combined radio transmitting and receiving systems; radar. A. C. COSSOR Ltd. Feb. 7, 1961 [Feb. 10, 1960], No. 4730/60. Classes 40 (5) and 40 (7). Relates to a radar system in which two transmitters 15, 16, operating on different wavelengths # 1 , # 2 , are arranged to transmit pulses of radio frequency at different instants via a common aerial 10 and provides means for reducing the loss of power in each transmitter circuit where the other transmitter delivers power for transmission and the loss of energy in received echo signals by division of the received signals between the two halves of the installation. The transmitters 15, 16 are controlled by a common modulator 19 via gates 20, 21 respectively which are in turn controlled by a random pulse generator 22. The receiver 17 associated with the transmitter 15 is connected to the branch 13 through a conventional T-R box 23 and the receiver 18 is similarly connected via T-R box 24 to the branch 14. The branches 13, 14 also include transmitter blocking cells 25, 26 respectively, followed by sections of transmission line 27, 28 short-circuited at their remote end, Fig. 2 (not shown), each section having an electrical length equivalent to a quarter of the wavelength to which the transmitter and receiver in the other branch are tuned, and being arranged to provide a matching impedance at the wavelength to which the transmitter and receiver in its own branch are tuned when the cells are not ionized. In operation, when either transmitter operates all the cells 23 to 26 are ionized, the cells 23, 24 protecting their associated receivers in conventional manner. The cells 25, 26 provide zero impedance in their associated branches whereby the pulse generated by the transmitter is passed to the junction 12. Because of the difference in frequency, the magnetron at one transmitter forms a reflecting impedance at the wavelength of the other and phase-shifter 35, 36, 37, 38 are provided for ensuring that the reflected power is in the correct phase for combining at 12 with the direct signal. When echo signals are received they pass into both branches, signals of wavelength # 1  being reflected at the cell 26 and signals of wavelength # 2  being reflected at the cell 25. The phase shifters 35, 37 are adjusted for correct combination of the reflected and received signals at the junction 12, and the phase shifters 36, 38 are adjusted for optimum conditions of transmission. If the transmitters are operating on fixed frequencies the phase-shifters may be in the form of appropriate lengths of transmission line.
Patent GB-677170-A (GB)
Title: An improved compressor for use in card-index receptacles
Inventor: HICKIN NORMAN
IPC: B42F17/02
Filed: 1950-02-24
Abstract: 677,170. Card indexes. EVERTAUT, Ltd. Dec. 11, 1950 [Feb. 24, 1950], No. 4771/50. Class 146 (i). A compressor 1 for a card index 2 comprises two separate laterally extending parts or plates 4 connected by an intermediate resilient or spring-influenced hinge 5 so that the plates 4 can be sprung to press outwardly against the receptacle sides 3 and can be released by movement relatively to each other about the hinge 5 to release the compressor. As shown the hinge 5 comprises a single resilient metal strip bent into a hairpin shape, the limbs 5a of which are secured by brackets 6 to the inner edges of the plates 4. Each plate 4 is formed with a flange 9 to bear on the bottom of the receptacle 2 and a side flange 7 to bear against the sides 3, the lower corner of the plate being cut away to avoid fouling of the sides on removal. Resilient pads 8 are provided on the flange 7 and may be provided under the flange 9. The upper ends of the hinge arms 5a are bowed at 5c to form finger-pieces for moving the plates 4 together.
Patent GB-1131832-A (GB)
Title: Improved radio communication system
IPC: G08C19/14
Filed: 1966-02-03
Abstract: 1,131,832. Radio signalling. GENERAL SIGNAL CORP. 3 Feb., 1966 [5 Feb., 1965], No. 4780/66. Heading H4L. In a remote control system a radio transmitter is arranged to transmit intermittently and at random an address signal identifying a receiver, and to transmit a command signal during each period of transmission of the address signal, transmission of the command signal commencing after the start of the transmission of the address signal and ending upon termination of the address signal, the corresponding receiver being responsive to the correct reception of the address signal to put a device under the control of the command signal so long as the address signal is received. The system enables a plurality of transmitters to communicate with respective receivers using a single carrier frequency. The remote control of locomotives is referred to. Transmitter.-A transmitter 10, Fig. 1, receives modulating signals from a group of command oscillators 13 and a group of address oscillators 14, each oscillator producing a different frequency signal. Selection of a predetermined address signal is achieved by constant energization of appropriate oscillators in the group 14 through a selector 15 and selection of a predetermined command signal is carried out by energization of appropriate oscillators in the group 13 selected by switches 11 via encoder 12. In addition the transmitter 10 is keyed by negative pulses from a pulse generator 17 which supplies pulses which recur within predetermined time limits but at random times within these limits, and is also keyed by negative pulses from a change-detecting circuit 18 whenever a new sequence of command oscillators is triggered by encoder 12. The power supply switch 33 may be spring-loaded to operate as a " dead-man switch" and the station may be carried by an operator. In operation a relay 19 is energized as long as no output pulse is produced by generator 17 or change detector 18, short-circuiting the command oscillators via contact 23, while the output of the address oscillator group is constantly applied to the transmitter 10. Each time a pulse is produced by generator 17 or circuit 18 a R.F. pulse modulated by the address signal is trans. mitted and after a delay provided by capacitor 21 and resistor 22 the relay 19 is de-energized to allow the command signal to be transmitted. The circuit 18 permits rapid response to a new command signal. Receiver.-The receiver, Figs. 4 and 6 (not shown), includes an AND gate responsive to the correct address signal and filters for selecting the various command signals, the outputs of these filters being supplied by respective gates controlled in dependence upon the reception of the correct address signal to effect the required control operation. The control signals are stored for a predetermined time after the input has been removed so that the absence of one command pulse will not remove the control signal but a greater delay will.
Patent GB-1472032-A (GB)
Title: Dyeing acid-modified polyester fibre
IPC: D06P3/52
Filed: 1975-02-04
Abstract: 1472032 Dyeing acid modified polyesters with cationic dyes SUMITOMO CHEMICAL CO Ltd 4 Feb 1975 [25 Feb 1974] 4808/75 Heading D1B A method of dyeing acid-modified polyester fibres with a cationic dye comprises contacting said fibres with a dye bath containing at least one thiazole azo-type cationic dye of formula (I): wherein R<SP>1</SP> and R<SP>2</SP> each represents methyl or ethyl; A and B each represent a benzene nucleus which may be substituted with methyl, ethyl, methoxy or ethoxy; and X- represents an anion.  The dye bath may be at 110-130C, the compound (I) may be present in an amount of from 0.1 to 5% of the weight of fibres, the pH may be 3.5 to 5, the dye bath may additionally contain sodium sulphate as stabiliser, a cationic-type retarder and a carrier.
Patent GB-767888-A (GB)
Title: Method of and materials for the surface treatment of aluminium and its alloys
IPC: C23C22/37
Filed: 1955-02-17
Abstract: The corrosion resistance of an aluminium or aluminium-base alloy surface is increased by treatment with an aqueous acid solution comprising one or more hexavalent chromium compounds and one or more soluble complex fluorine-bearing compounds, the amount of hexavalent chromium compounds being 0.4-4 grams/litre calculated as CrO3 and the amount of fluorine-bearing compounds being 0.1-1.0 gram/litre calculated as fluorine, and the pH of the solution being from 2-4, the solution being free from ions (other than the ions of the chromium and complex fluorine compounds) capable of forming a coating on aluminium and containing at most only traces of other halide ions. The hexavalent chromium compound may be chromium acid or its soluble salts such as ammonium dichorate, potassium dichromate and sodium chromate and the complex fluorine-bearing compound may be fluosilicic acid, fluoboric acid, fluozirconic acid, fluostannic acid, fluotitanic acid or a soluble salt thereof.  The article to be treated may be immersed in the solution, sprayed therewith or may be wiped with a cloth dampened with the solution. Compositions given by way of example contain (a) chromic acid and potassium titanium fluoride.  Specifications 632,090, 673,677, 708,937 and 714,541 are referred to.
Patent GB-709850-A (GB)
Title: Improvements in or relating to solvent extraction, especially of oil seeds
IPC: C11B1/10
Filed: 1952-02-25
Abstract: <PICT:0709850/III/1> In the continuous solvent extraction of oil-bearing material, such as oil seeds, the residual material leaving the primary extracting process is pressed to obtain a miscella consisting of oil, solvent and fines, and the miscella is then recycled into the first stage of the primary process wherein new charges of the original raw material act as filters for the fines and the oil and solvent joins the primary solvent used in the process. The extracting apparatus may include vertical and horizontal basket-type extractors, horizontal-type screen extractors where the material to be extracted rests on an endless screen conveyer, or on compartments rotating about an axis with the compartments having movable sieve bottoms, or agitating extractors with fixed sieve bottoms.  In a preferred form of apparatus a vertical paternoster-type of extractor is used wherein baskets 2 revolve clockwise in a vessel 1, the baskets being charged with the raw oil-bearing material through a feed line 3 and the residual material being dumped at the end of one revolution as the basket swings over the top of the cycle, the path of the material being shown by cross-hatching.  The solvent, such as benzine or gasoline, enters through feed line 4 and passes downwardly through the rising baskets to dissolve out the oil, the extract stream being shown by oblique hatching and the pure solvent stream as plain.  The oil and solvent mixture passes through pipe 5 to inlet 6 to the uppermost of the downwardly moving baskets.  The extract is removed at the outlet 7 and the oil and solvent mixture passes to a solvent evaporator 8. The oil is discharged at 9 and the solvent from a condenser 10 is re-cycled to the feed line 4.  The residual oil-bearing material is discharged into the hopper 15 and then conveyed to a press 18.  The miscella of oil, solvent and fines pressed therefrom is conducted from the collecting chamber 19 through pipe 20 into the lower end of the solvent extraction cycle 21.  This miscella is introduced into the solvent and oil mixture which has been obtained from the upwardly ascending baskets at a point where both miscella and oil solvent mixture have about the same concentration.  The combined fluids are then re-introduced through inlet 6 to the extractor.  The material in the baskets acts as a filter to separate the fines from the miscella. The residue from the press 18 passes to a desolventiser 23, solids being removed at 24 and the vapours condensed in a condenser 26.  The solvent is returned to the extractor through pipe 28.
Patent GB-497984-A (GB)
Title: Improvements in bearing members for wheel hubs
IPC: B60B27/02
Filed: 1938-02-17
Abstract: 497,984. Ball bearings. GUTHER, W., and BRUNINGHAUS, P., (trading as PRAZISION-WERKE BRUNINGHAUS & CO.). Feb. 17, 1938, No. 4965. [Class 12 (i)] A bearing for a wheel hub, more particularly a bicycle wheel hub, comprises an inner substantially conical ball-race b mounted on the spindle a, an outer substantially cup-shaped ball-race d, balls f therebetween and a dust cap g firmly connected with the outer ball-race by having its outer edge h turned over a marginal flange k on the race. In order to provide satisfactory sealing against dust, the opening in the cap is provided with a relatively deep cylindrical flange m embracing the member b.
Patent GB-1281805-A (GB)
Title: Powder coating composition
Inventor: KLAREN C H J
IPC: C09D163/02
Filed: 1971-02-19
Abstract: 1281805 Powder-coated steel panels SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 19 Feb 1971 5004/71 Heading B2E [Also in Division C3] A powder coating composition curable by heat comprises a polyglycidyl ether of 2, 2- bis (4-hydroxy phenyl) propane having a Durrans' softening temperature between 60‹C and 140‹C; from 5 to 33 parts by weight of ethyl cellulose per 100 parts by weight of polyglycidyl ether; and a latent curing agent for the polyglycidyl ether; the components having been blended in the molten stage of the polyglycidyl ether and the blend having been cooled and pulverised. The curing agent may be phthalic anhydride, dicyandiamide, or an adduct of an epoxide with an imidazole having a secondary amino group in the ring or with diaminodiphenyl sulphone. The composition may be applied by fluidised bed coating, powder spray coating, flame spraying or electrostatic spraying. In an Example steel panels were coated by electrostatic spraying and cured at 180‹C for 15 minutes.
Patent GB-825288-A (GB)
Title: Improvements in or relating to tractor units
IPC: B66C7/00
Filed: 1956-02-17
Abstract: 825,288. Tractors. KING, D. M. Feb. 8, 1957 [Feb. 17, 1956], No. 5033/56. Classes 79(1) and 79(2) A tractor comprises a body 10 having wheels 11 to support it on a track 12, a driving wheel 19 movable into and out of engagement with the track or an adjacent surface, means such as :an air motor 24 for driving the wheel 19 and means such as an air cylinder 28 for moving the wheel into engagement with the track. The motor 24 drives the wheel 19 through gearing and a chain drive and is supported together with the wheel on a frame 16 connected to the body 10 by the air cylinder 28 and a pivotal connection 14. An off-take pipe 27 may be used to supply the cylinder 28 from the motor 24 so that the frame 16 swings about its pivot to bring the wheel 19 into its driving position each time the motor 24 is operated. Springs may cause rapid downward movement of the frame when the motor 24 stops. The wheel 19 has a rubber tyre 20. In an alternative construction, the frame and body are rigidly connected and the wheel 19 is mounted for vertical sliding movement under the control of two air cylinders. According to the Provisional Specification, the wheel 19 may be belt driven from the motor 24.
Patent GB-681618-A (GB)
Title: Improvements relating to the dyeing of mixed fibres, and resulting products
Inventor: FUCHS OTTO
IPC: D06P3/06
Filed: 1950-02-28
Abstract: Synthetic polyamide, e.g. nylon, fibres are reserved against dyeing with wool dyes by treating them with a synthetic tanning agent obtained by condensing a naphthalene monosulphonic acid, a dihydroxydiphenyl sulphone and formaldehyde in a weakly acid medium. The fibres may be treated before or after mixing with natural protein fibres or simultaneously with dyeing a mixed fabric containing both nylon and natural protein fibres.  The mixed fabric is dyed with a wool dye, e.g. an acid or chrome dye, to dye the natural protein fibres and leave the nylon undyed, and the nylon fibres may be coloured, before treatment, in order to obtain cross-dyed effects in the fabric.  In examples: (1) to (3), nylon or perlon is treated with a condensation product obtained from a technical mixture of naphthalene-1- and 2-sulphonic acids, 4,41-dihydroxydiphenyl sulphone and formaldehyde in presence of formic acid; (4) a union fabric of wool and nylon is treated with the condensation product of (1) and dyed as in (13) below; (5) to (7) a wool flannel with nylon or perlon effect threads treated as in (1) or (2) is dyed with specified acid azo dyes; (8) to (10) wool flannel with perlon or nylon effect threads treated as in (1) or (2) is dyed with specified chrome azo dyes; (11) and (12) wool flannel with nylon or perlon effect threads treated as in (1) to (3) is dyed with specified non-azo acid dyes; (13) a union fabric of nylon and wool pretreated as in (4) is dyed with an acid dye; (14) wool flannel containing nylon effect threads is dyed from a bath containing an acid azo dye, the condensation product from naphthalene-2-sulphonic acid, 4,41-dihydroxydiphenyl sulphone and formaldehyde; (15) unweighted silk with perlon effect threads treated as in (2) is dyed with a specified acid dye; and (16) nylon is dyed with a chrome dye, treated as in (1) and woven into a wool flannel which is then dyed with a different chrome dye.
Patent GB-783702-A (GB)
Title: Method for treating the inside wall of a hollow body
IPC: C23C8/06
Filed: 1954-02-22
Abstract: 783,702. Cementation. POTTS, F. C., (Eidg. Waffenfabrik). Feb. 22, 1954, No. 5086/54. Class 72 [Also in Group XII] In a method for treating in a furnace the inside wall of one or several hollow bodies at a time by means of an active gas which is led through the body, the gas after having traversed the body at working temperature is discharged into the furnace chamber where it acts as a protective atmosphere. As shown, for nitriding firearm barrels, fresh ammonia gas is supplied, under pressure, through conduit 8 and via distributing pot 12 to barrels 21 whence it is discharged into furnace chamber 9 and finally escapes through outlet conduit 24. The fresh gas is heated to working temperature in coil 16, or outside the furnace. Carburizing with carbon monoxide is also referred to.
Patent GB-289988-A (GB)
Title: Improvements in and relating to beds
IPC: A47C20/08
Filed: 1927-02-23
Abstract: 289,988. Murray, J. L. W. Feb. 23, 1927. Bed-rests; adjustments.-A bed is provided with a backrest c, a thigh-rest d and a legrest e, each pivotally mounted and provided with means for angular adjustment, the backrest and leg-rest being pivoted on fixed supports f, g, and the leg-rest and thigh-rest being so inter-connected that the former cannot be raised to lie at a greater inclination than the latter. The adjusting means may comprise a threaded spindle d<3> carrying nuts h, i to which are pivoted links k, l, pivoted to. gether at m and slidably engaging the cross-bar d', the adjusting mechanism for the thigh-rest comprising also links k<1>, l<1> permitting it to be raised by the leg-rest independently of its own gearing. The thigh-rest may be pivoted on the same axis g as the leg-rest or may be pivoted on the leg-rest, the sides of which, when raised, engage the sides of the thigh-rest to raise the same. Specification 289,590 is referred to.
Patent GB-306146-A (GB)
Title: Improvements in and relating to heat dissipating devices for immersed electrical apparatus
IPC: H01F27/12
Filed: 1929-02-15
Abstract: 306,146. British Thomson-Houston Co., Ltd., (Assignees of Rice, K. A.). Feb. 17, 1928, [Convention date]. Metal tubes.- Extercal radiator tubes for the oil tanks of electrical apparatus are provided with protruding flanges around the circulation openings, for direct attachment to the tank, and have the ends flattened and sealed. Plain tube lengths 13, Fig. 2, which are preferably of flattened section, have holes 14, Fig. 4, formed in one of the narrow sides near the ends, and the metal is extruded around the holes to provide flanges 15, which pre. ferably just fit into the holes in the tank wall. The walls of the tubes are then pressed together at the ends, as shown at 16, cut off to a curved shape 17, Fig. 5, and sealed. The flanges 15 are welded to the tank wall.
Patent GB-565377-A (GB)
Title: Improvements in or relating to combustion chambers for internal-combustion engines
IPC: F02B19/14
Filed: 1943-03-30
Abstract: 565,377. Combustion chambers. WESLAKE, H., and SMITH, O. D. March 30, 1943, No. 5120. [Class 7 (iii)] An internal-combustion engine, particularly of Diesel type, has a combustion chamber 11, Fig. 2, formed jointly by a pocket 13 in the piston crown and a pocket 11 in the cylinder head, over the cylinder, the remainder of the piston being.arranged to approach as closely as possible to a flat surface on the cylinder head, the exhaust port being arranged in the depression and the inlet port in the flat part of the head. The combustion chamber is located to one side of the head, Fig. 1, and the pocket 11 extends somewhat beyond the cylinder wall as shown at 16. The volumes of the two pockets are approximately equal so that the piston pocket which is bounded in Fig. 1 by the radial lines 20, 21 at 135 degrees and by arcs 18, 19 and 17 is slightly deeper than the head pocket. The central fuel nozzle preferably directs fan-like spray in a plane 28 separating the two parts of the combustion space. Alternatively, in a modification, the nozzle may be arranged near the bottom of the pocket 11 and directs its spray in a downwardly inclined direction. Specification 565,394 is referred to.
Patent GB-327512-A (GB)
Title: Improvements in pneumatically operated motors
IPC: G10F1/12
Filed: 1929-06-18
Abstract: 327,512. Collen, R. H., and Broadwood & Sons, Ltd., J., June 18, 1929. Vacuum engines.-Each crank of the shaft of a vacuum motor is connected to two alternatelyoperating pneumatics arranged on opposite sides of a horizontal suction board so that two impulses are imparted to the crank during each rotation. The valves controlling the pairs of pneumatics are mounted above the board between the pneumatics. The board 1 has pneumatics 2, 3 secured to its upper and lower faces respectively. The front end of each pneumatic projects beyond the front edge of the board 1. The parts 2a, 3<a> are coupled by links 4 so that one pneumatic opens while the other closes. The parts 3<a> are coupled by rods 5 to the cranks 6 of shaft 7. The slide valves 12, reciprocated by links 17 connected to the rods 5, alternately puts the pneumatics into communication with the atmosphere and a main suction channel in the board.