baber/WOPTO huggingface dataset:
Patent GB-1155737-A (GB)
Title: Improved Fibre Preparation for Wad or Felt Manufacture
IPC: D04H1/22
Filed: 1966-11-07
Abstract: 1,155,737. Forming fibrous wads. COMMONWEALTH SCIENTIFIC & INDUSTRIAL RESEARCH ORGANIZATION. 7 Nov., 1966 ]15 Nov., 1965], No. 49720/66. Headings D1N and D1R. A wad of fibres e.g. of wool for use in a subsequent felting process is formed by feeding a carded web 24 and laying it, under pressure, back and forth across the mouth of a conduit 1 through which the layered web is forced as the operation proceeds. As shown web 24 passes through a slot in a plate 14 reciprocated across the top of cylindrical conduit 1 which has upstanding pins or combs 8 to hold the folds of web. As the process proceeds the layers are forced down the conduit to be expelled at its lower end as a cylindrical wad. The web overhanging the mouth of the conduit, being cut away by blades 9 which are driven by a motor 13 about the conduit. The conduit is rotatably supported and is driven by a motor 7 so that successive layers of web are laid at an angle to each other. In a further form the guide plate 14 is stationary and conduit 1 is reciprocated. In Fig. 8 (not shown) guide plate  14 is replaced by a series of rollers (36) mounted in a frame (39) which can be reciprocated, the rollers having associated pinions engaging stationary racks to be rotated. The web passes between guide plates between the centre pair of rollers and is laid at the mouth of a rectangular conduit inclined at a shallow angle to the plane of the roller frame, the bottom wall of the conduit being formed by a conveyer belt. Thus a rectangular wad with layers lying at a shallow angle to its upper and lower surfaces is formed. The web fed to the rectangular conduit may be a composite web. The rollers (36) may be in two groups each surrounded by an endless belt with the web being fed between them. A pair of members may be provided adjacent the central roller pair which members are alternately brought into contact with the web at successive reversal points to ensure a clean fold. Steam, detergent or other felting fluid may be fed to web as it enters the conduit to provide a degree of pre-felting.
Patent GB-1113231-A (GB)
Title: Improvements in plating processes
Inventor: LEVY JOSEPH PEPPO
IPC: C23C18/20
Filed: 1963-12-17
Abstract: An article of insulating material is coated with polymerizable resin, treated with a solution of PdCl2 and acetone, depositing metal from a plating solution and polymerizing the resin.  A method of forming a printed circuit board comprises coating areas of a laminate of phenol formaldehyde resin with an epoxy resin and a catalyst to which marble flour may be added, heating to partly polymerize the resin, coating the remaining areas with a 20% solution of gum sandarac in alcohol on which bridging strips are deposited as described in Specification 1,076,156 and, when dry, treating the entire surface twice with a solution of PdCl2 in acetone as described in the parent Specification.  The laminate is immersed for 1 hour in a plating bath at 25 DEG C. comprising 1 part of formalin to 5 parts of a solution containing Rochelle salt, caustic soda, CuSO4 and Na cyanide. After the boards are washed and dried, the epoxy resin is completely polymerized by storing for a few days or by baking, a further Cu layer is electro-deposited and the gum sandarac and bridging strips removed with warm alcohol.
Patent GB-1501488-A (GB)
Title: Roller device for removing a liquid body from a flat surface
IPC: A63B61/00
Filed: 1975-12-05
Abstract: 1501488 Removing liquid from floors ROLDRI Inc 5 Dec 1975 [6 Dec 1974] 50109/75 Heading A4F [Also in Division F2]  A device for removing liquid from a flat surface, e.g. water from a tennis court, comprises a roller 23 attached to a frame 10 preferably with a handle 11, and having a non-compressible core 24 surrounded by a foam sleeve 40, the foam having a compression load density of 20-601bs and a density of 1-41bs/cu.ft. Preferably the foam is an ester base polyurethane foam having a tear strength of 0À25-0À45lbs/in., a tensile strength of 15-401bs/ sq.in., an elongation factor of 100-400%, and 50-100 ports per inch so that as the device is rolled across the surface, the liquid is pushed ahead and, because the foam is slightly porous, the roller dries the surface.
Patent GB-1108394-A (GB)
Title: Improvements in or relating to building materials and to the production of structural articles therefrom
Inventor: VERA PIERRE DALLA
IPC: C04B28/02
Filed: 1964-12-11
Abstract: A building material, e.g. for wall panels, comprises a concrete obtained by mixing a cement having a high initial strength, e.g. Portland and/or slag cement, expanded clay, sand and water. Rapid-setting cements and aluminous cements are not suitable.  The expanded clay should be from 10 mm. to 20 mm. grain size, and the sand should be up to 6 mm. grain size.  Preferred proportions per cubic metre of concrete are: 320 to 420 kg. of clay, about 300 kg. of cement, and about 800 kg. of sand, within from 110 to 150 litres of water, and unspecified wetting and emulsifying agents may be added. Four constructions of wall panel are described.  In the first, the concrete is laminated with an interlayer of expanded clay in cement grout; in the second, it is laminated with interlayers comprising sheets of insulating plastics material or expanded clay agglomerated by a resin; in the third, the concrete contains cavities in which grains of expanded clay are located; in the fourth, the concrete is cast on a horizontal surface and vibrated to bring the clay particles to the top, see Fig. 5 (not shown), an unvibrated concrete layer being superposed, Fig. 6 (not shown), to provide a three layer panel.
Patent GB-1407537-A (GB)
Title: Liquid level limiter or regulator
IPC: F16K24/04
Filed: 1973-11-01
Abstract: 1407537 Liquid level control HANS SASSERATH & CO KG 1 Nov 1973 [6 Dec 1972] 50788/73 Heading G1H [Also in Division H1] In a liquid level limiter or regulator in which a float 12 is disposed in a housing 10 connected by a nipple 14 to a vessel filled with a liquid, as soon as the liquid in the vessel reaches the housing 10 a vacuum breaker 16 allows liquid to enter the housing 10 to lift the float 12 to close off vent apertures 22 in a tube 18, by a disc 32 engaging a valve seat 20, and to actuate a switch 26 by a plate 30 engaging a pin 29. In an alternative arrangement, Fig. 2 (not shown) the switch plate is lifted off one end of a pivoted member which can then be manually operated to actuate the switch. In a further embodiment, Fig. 3 (not shown) the tube is movable in a guide tube to verify the actuation of the switch.
Patent GB-1475767-A (GB)
Title: Remote adjustment device of an inaccessible element
IPC: H03H7/01
Filed: 1974-11-25
Abstract: 1475767 Control of D.C. motors COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS-CIT-ALCATEL 25 Nov 1974 [28 Nov 1973] 51022/74 Heading H2J [Also in Division H4] A reversible D.C. motor for adjusting an equalizer in a multiplex telephone cable (see Division H4) is controlled by a pair of frequencies sent out by a terminal station of the cable during an adjusting operation. In Fig. 3 the motor M is driven in one or other direction by application of a frequency F1 or F2 to transformers A1 or A2, transistors T1, T2 being appropriately switched on or off to complete the desired motor, transistor and capacitor (C1 or C2) circuit. A simpler arrangement, Fig. 2 (not shown) omits the members D3, D4, C3, C4 and R3 ... R6. In Fig. 6 a frequency Fa is always present to drive the motor through members 51, D1, C1 or 52, D2 C2, the direction of rotation being determined by the presence or absence of of a frequency Fb to respectively switch on transistors T2, T3 and switch off transistor T1 or vice versa. The frequencies are removed by an operator at the terminal station, when the motor has rotated a desired amount corresponding to a predetermined number of variations in the amplitude of a further frequency controlled by a switch stepped round by the motor.
Patent GB-1059440-A (GB)
Title: Bearing assembly
IPC: H02K5/167
Filed: 1965-12-01
Abstract: 1,059,440. Electric motors. RORTRON MANUFACTURING CO. Inc. Dec. 1, 1965 [March 30, 1965; Aug. 2, 1965], No. 61042/65. Heading H2A. [Also in Division F2] A bearing assembly for two relativelyrotatable members comprises two axiallyspaced annular porous bearing-elements, a lubricant-retaining medium positioned between the bearing elements and seals located between the bearing elements and one of the relativelyrotatable members. The seals serve to prevent escape of lubricant, to connect the bearing elements to said one of the relatively-rotatable members, and, being resilient, facilitates selfalignment of the bearing-elements. In an embodiment, the relatively-rotatable members are a stator (10) and rotor (12) of an electric motor; the bearing-elements are porous bushes (30, 40), Figs. 1 and 2 (not shown); and the lubricant-retaining medium is a wick (60). A non-rotatable shaft (16) is attached to the stator (10) and is received by the bushes (30, 40) and the latter are connected to a stack (22) of the rotor (12) by 0-rings (56). A lubricant-retaining ring (62) is cemented to the stack (22) and a felt washer (64) is located between the ring (62) and the bearing (40). The bearing (30) has an integral portion (36) which serves as a thrust bearing, being abutted by a ring (76) which is cemented to the stack (22) and by rotatable washers (70) which are engaged by rings (72, 74) that are secured to the shaft (16). The stack (22), having an end-ring with a circumferential groove therein, is attached to a housing (20), having an annular detent formed on the interior end wall thereof. In a modification, the bearings (30, 40) and the wick (60) are replaced by a member (80), Fig. 3 (not shown), which comprises integral bearing elements (84, 86) and, being of porous material, also serves as a lubricant reservoir.
Patent GB-1018400-A (GB)
Title: Semiconductor devices
IPC: H01L29/167
Filed: 1963-12-31
Abstract: 1,018,400. Semi-conductor devices. WESTINGHOUSE ELECTRIC CORPORATION. Dec. 31, 1963 [Jan. 4, 1963], No. 51279/63. Heading H1K. A method of producing a shallow impurity concentration junction of the kind described in Specification 1,018,399 comprises vapour diffusing a first impurity into a wafer of semiconductor material to form the shallow gradient junction and then diffusing-in a second impurity of the same conductivity type to increase the surface impurity concentration without disturbing the junction. In the manufacture of a semi-conductor controlled rectifier substantially identical to that described in the abovementioned Specification, aluminium is vapour-diffused into an N-type silicon wafer to produce the shallow gradient junction, and gallium is then vapour-diffused into the wafer to produce the high surface impurity concentration. The same impurity may be used for both diffusions, e.g. by diffusing gallium at a low vapour pressure to produce the shallow gradient junction and then performing a short diffusion at a high vapour pressure to produce the high surface concentration. Two different impurities may also be simultaneously diffused into the wafer. The Specification includes a table of impurities suitable for use with P or N-type silicon and germanium and with N-type indium arsenide.
Patent GB-1204385-A (GB)
Title: Improvements in or relating to motor vehicle steering devices
Inventor: LIEBERT KARL-HEINZ
IPC: B62D5/097
Filed: 1967-11-10
Abstract: 1,204,385. Hydrostatic steering devices. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. 10 Nov., 1967, No. 51325/67. Heading B7H. [Also in Division F2] A manually operated or power assisted steering device for motor vehicles, comprises a fluid pump 4 driven by rotation of the steering shaft 2 and connected via a valve member 60 to a servomotor 9 acting on the steered wheels of the vehicle, the rotation of the steering shaft 2 being geared up by an internally-toothed ring gear 10 fast therewith and meshing with an externally-toothed pinion 11, which is rotatably mounted eccentrically on the shaft 14, 15 driving the pump 4, but which is substantially prevented from rotating about its own axis and is constrained to a circular orbit about the axis of the ring gear 10. In one embodiment, the pinion 11 has lugs 28 engaging grooves 21 and 22 formed in the ring 20, the grooves 21 and 22 engaging the bushed pins 23 and 24 of a cardan bolt 25 which is universally mounted (but capable of only limited rotation) by pins 30, 31 engaging slots 32, 33 in a housing 34. A highpressure fluid power-assistance pump 6 is continuously driven by the vehicle and normally its output is directed back to the reservoir 7 by a control device 8 which comprises a rotary valve member 60 secured to the cardan bolt 25 and a fixed valve sleeve 61, comprising longitudinal control grooves 96-99a and b, 92-95a and b co-operating with each other and with annular grooves 75-79 in the housing 16. When the steered wheels offer resistance to movement greater than a certain value, then the cardan, bolt 25 rotates a limited amount against springs 66, 67 and high pressure fluid is then delivered by the control device 8 via channels 50<SP>1</SP> and 51<SP>1</SP>, or 52<SP>1</SP> and 53<SP>1</SP> to the suction chambers of the twin-flow gear pump 4 and thence via channels 52<SP>1</SP> and 53<SP>1</SP>, or 50<SP>1</SP> and 51<SP>1</SP> back to the control device 8 and thence to chamber 87 or 88 of the servomotor 9, the chamber 88 or 87 discharging fluid via the control device 8 to the reservoir 7. The rotary valve member 60 may be constructed so that a shock at the servomotor 9 is or is not transmitted by the fluid to the pump 4 to produce a movement of the member 60, so that the power assistance may or may not counteract the shook. In another embodiment, the cardan bolt 25 is dispensed with, and the pinion 11 is connected to an adjacent disc capable of a limited rotary movement (against spring action) which rotates an axially displaceable control valve member. Rotation of the control valve member causes axial displacement thereof by means of coarse screw-threads on the member and the fixed housing 16, the control valve member having circumferential control grooves co-operating with the circumferential grooves in the housing 16. The disc is centred by a lever acted oppositely on by two springs.
Patent GB-1454757-A (GB)
Title: Device for making visible the inner profile of bodies of  revoloution
IPC: G02B23/24
Filed: 1973-11-07
Abstract: 1454757 Optical apparatus GOETZEWERKE FRIEDRICH GOETZE AG 7 Nov 1973 [11 Nov 1972] 51693/73 Heading G2J Apparatus for inspecting the profile of the flank 17 of a lip-sealing ring 16 comprises a projection device 1-5 for forming an illuminated strip 18 extending across the profile; an observation device 6-9 for viewing the illuminated strip 18 and a mandrel 13 for supporting the ring 16. The axes of the projection and observation devices are at an angle to each other of 90 degrees or less which may be adjustable; the mandrel may also be angularly adjustable.
Patent GB-1147700-A (GB)
Title: Modulated magnetooptic readout system
IPC: G03G5/16
Filed: 1967-11-14
Abstract: 1,147,700. Optical playback of magnetic records. AMPEX CORP. 14 Nov., 1967 [14 Nov., 1966; 5 May, 1967], No. 51823/67. Heading G5R. In a magneto-optic readout system comprising an information storage medium adapted to store information as differently-magnetized portions of the medium, means for scanning the portions successively with a beam of polarized light, and means responsive to the polarization of the beam after it has left the medium-means are provided to modify the magnetization of the portions during the scanning. Preferably the last-mentioned means is an alternating magnetic field. The purpose of the invention is to reduce noise due to surface imperfections and light fluctuations. Preferably the information stored is in binary form. The magneto-optic system of Fig. 5 comprises light source 24, polarizer 26, lens systems 28, 30, analyser 32 and photodetector 36; the signal generated by the photodetector is passed through a bandpass filter 38 to an output terminal 40. The means for modulating the magnetizations of the differently-magnetized portions of the medium 10 consists of a wide-gap magnetic head 44 to which a signal is applied by a source 42, the signal providing a magnetic field which alternates at a frequency preferably in the range of 100 Hz to several MHz. This magnetic field may be applied in a direction parallel to the direction of the magnetization corresponding to the stored information, or in a direction transverse thereto. Preferably the medium 10 contains two materials, of relatively high and low coercivities respectively. As shown in Fig. 2, a plastics substrate 11 carries a storage layer 12 having a coercive force of a few hundred oersteds, a non-magnetic layer 16, and a read-out layer 14 having a coercive force of a few oersteds. The modulating field provided by source 42, Fig. 5, is shown at 19, Fig. 2. Where materials other than those used in the Fig. 2 embodiment are used, the non-magnetic layer 16 may be omitted, and in that case, the further variant of Fig. 4 may be adopted, where particles 22 of high-coercivity storage material are interspersed throughout a low-coercivity read-out layer 20. The magnetization of the low-coercivity material is principally determined by the magnetization of the high-coercivity material, as shown in Figs. 2 and 4, and the light beam is affected by the low-coercivity material; also, the modulating field varies the magnetization of the low-coercivity material without significantly affecting the magnetization of the high-coercivity material. Thus, the information stored in the latter material is not erased by the readout process. The modulating magnetic field is applied in such a direction and with such a waveform that the A.C. component of the output signal of the system is different either in phase or in amplitude for the different bits (e.g. "1" or "0" binary digits) of information stored in the storage layer 12. The invention may utilize the Faraday effect, in which the light is transmitted through the medium instead of being reflected therefrom.
Patent GB-1137529-A (GB)
Title: Thiazole compositions
Inventor: CAVALLA JOHN FREDERICK
IPC: C07D277/30
Filed: 1966-11-18
Abstract: 1,137,529. Thiazoles. JOHN WYETH & BRO. Ltd. 13 Nov., 1967 [18 Nov., 1966; 22 Dec., 1966; 4 May, 1967 (2)], Nos. 51824/66, 57486/66, 20699/67 and 20700/67. Heading C2C. [Also in Division A5] Novel compounds of formula in which R<SP>1</SP> is a monocyclic heteroaryl radical or naphthyl radical or a phenyl radical optionally substituted by one or more halogen atoms, C 1-6  alkyl, C 1-6  alkoxy, nitro or trifluoromethyl groups, R<SP>2</SP> is H or C 1-4  alkyl, R<SP>3</SP> is a -COOH group or a salt, ester, amide or hydroxamic acid derivative thereof and R<SP>4</SP> is H with the proviso that when R<SP>1</SP> is phenyl, phenyl substituted by one or two halogen atoms, or by a p-nitro or ptrifluoromethyl group, R<SP>3</SP> is an acetoxymethyl ester of a carboxyl radical, are prepared by reacting in which hal is a halogen atom with reacting the 4-haloalkylthiazole so formed with an alkali metal cyanide to form the nitrile, hydrolysing the latter to the corresponding acid, amide and optionally converting the acid to a salt, ester or hydroxamic acid derivative of the acid.
Patent GB-1119567-A (GB)
Title: A joint between two circular wave guides
IPC: H01R13/646
Filed: 1965-12-07
Abstract: 1,119,567. Pipe joints. COMPAGNIE GENERALE D'ELECTRICITE. 7 Dec., 1965 [8 Dec., 1964], No. 51899/65. Heading F2G. [Also in Division H1] A coupling for circular waveguides 1, 11 comprises a sleeve 6 surrounding the abutting ends of the guides and serving to align their axes. A clamp for the joint comprises a pair of screw-threaded annuli 2, 7 which exert axial pressure on the guides through rings 4, 9 lying in grooves 3, 10. Seals 5, 8 are inserted between the rings and the bevelled edges of the sleeve 6. Protective coverings 13 extend over the joint.
Patent GB-1029530-A (GB)
Title: Drinking straw
Inventor: DAVIS HARRY EDWARD
IPC: A47G21/18
Filed: 1964-12-21
Abstract: <PICT:1029530/C6-C7/1> During the winding of a flat strip of sheet material to form a drinking tube, the sheet material is crinkled throughout to provide numerous shallow wrinkles 20, Fig.2, in random pattern and is formed with at least one helical rib 18 extending outwardly of the surface of the tube.  A transparent sheet of regenerated cellulose, 0.0015 inch thick, 2 1/2 inches wide and furnished with a heat-sealable coating, is wound with a step-off of 5/8 inch to provide a tube with four superimposed layers.  A narrow coloured strip 13 of the same material is wound in between the two outer layers for aesthetic effect.  In a tube of 1/4 inch diameter, the wrinkles 20, which preferably extend uninterruptedly the length of the tube, are spaced one half of the width of the overlap and are approximately 1/128 inch in height.  The over-lapped edges of the tube are heat-sealed in fluid-tight relation.
Patent GB-1416191-A (GB)
Title: Process for the separation of mixtures of fats and other fatty materials into components of different melting points
IPC: C11B7/00
Filed: 1972-11-10
Abstract: 1416191 Fatty acid separation HENKEL & CIE GmbH 10 Nov 1972 [11 Nov 1971] 51957/72 Heading C2C [Also in Division C5] In the process for separating mixtures of fatty substances into fractions of different melting point by converting the mixture into a dispersion of liquid and solid particles of the fatty mixture in an aqueous solution of wetting agent and separating this dispersion into two phases of different density, one comprising a liquid fraction of the fatty material and the other a suspension of solid fatty particles in the aqueous liquid, e.g. by centrifuging, part or all of the wetting-agent solution is drained off and replaced by an aqueous solution containing a wetting agent or an electrolyte or both, the solid fatty particles are melted after the draining off, but in the presence of an aqueous phase, the melt is separated from the aqueous phase, and the latter is returned to the process. The draining off of the wetting-agent solution may be partial, so that the remaining suspension is still fluid, or substantially complete, so that it is not fluid. In the latter case, the suspension is made fluid again by the addition of aqueous solution. Fatty materials that can be treated are mixtures of fatty acids obtained by saponifying fats, synthetic mixtures of fatty acids, mixtures of fatty alcohols, compounds with branched-chain fatty residues and resin or naphthenic acids, their esters and the corresponding alcohols. Electrolytes referred to are the chlorides, sulphates and nitrates of alkali metals, alkaline-earth metals and earth metals. The invention can be applied to a process in which the fatty material is fractionated in successive stages, the draining off and melting steps being applied to at least the last stage.