baber/WOPTO huggingface dataset:
Patent GB-440889-A (GB)
Title: Process for producing coatings or fillings
IPC: C09F5/00
Filed: 1934-07-03
Abstract: Hardened coatings or fillings are produced from a composition containing red lead or cadmium oxide, or both, and an alcohol-soluble phenol-aldehyde condensation product capable of being hardened, the coating or filling being allowed to harden without the application of heat.  The oxide and the phenol-aldehyde resin may be mixed in the presence of an organic solvent such as alcohol or cyclohexanone, or the resin may be used in aqueous suspension as obtained in the condensation process which may be effected under acid or alkaline conditions.  Besides formaldehyde resins, those obtained using other aldehydes such as paraldehyde, acetaldehyde, crotonaldehyde, a mixture of several of these or of other aldehydes may be employed. The lacquers may be diluted with solvents such as alcohol alone or mixed with methyl alcohol, methylcyclohexanone, methylene chloride, methoxybutanol. Inert fillers such as pulverized asbestos or graphite and softening agents, e.g. chlorinated diphenyl may be added.  In examples: (1) red lead is mixed with an alcoholic solution of a phenol-formaldehyde resin and there may also be added methyl cyclohexanone and to give a dark brown colour lamp black, e.g. Frankfort black, to give a light colour white lead and to give a yellow colour lead monoxide; to give easy brushing a mixture of ethyl glycol and alcohol in equal proportions may be added; (2) a brown lacquer is obtained by condensing phenol with formaldehyde in the presence of a base such as ammonia or piperidine as catalyst, distilling off the water under reduced pressure, dissolving immediately in alcohol, and triturating with cadmium oxide powder; (3) a phenol-formaldehyde resin prepared by alkaline condensation is triturated with dispersed red lead and graphite.  Specification 360,944, [Group III], is referred to.ALSO:Hardened coatings and fillings are produced from a composition containing, as pigments, red lead or cadmium oxide, or both, and an alcohol-soluble phenol-aldehyde condensation product capable of being hardened, the coating or filling being allowed to harden without the application of heat.  Specification 360,944 is referred to.
Patent GB-196321-A (GB)
Abstract: 196,321. Plantation Rubber Manufacturing Co., Ltd., and Dessau, M. M. Nov. 22, 1921. Drawings to Specification. Pneumatic toys.-Toys are made from crepe rubber or similar material such as smoked sheet. The crepe is treated to increase its pliability, and is cut, and shaped on a former, joints being made by pressing the cut edges together, and the article is vulcanized by a cold process, such as that of Peachey . Joints may be strengthened by a covering strip, and reinforcements may be inserted as required.
Patent GB-390795-A (GB)
Title: Machine for rasping manioc
IPC: B26D3/18
Filed: 1931-07-08
Abstract: 390,795. Rasping manioc. CAMPBELL, A., Quartier AtakÚ, Porto-Novo, Dahomey, French West Africa. July 8, 1931, No. 19655. Convention date, July 8, 1930. Void [Published under Sect. 91 of the Acts]. [Class 5 (i).] Manioc is fed from a platform to a rasping roller H comprising a wooden cylinder provided with a large number of slits in which saw blades, forming the rasping surface, are fixed. The roller is driven through a multiplying gear from a handle or directly by a motor. A cover encloses the rasping roller. The rasped material falls into a trough below. the roller.
Patent GB-187694-A (GB)
Title: Improvements in or relating to diaphragms for sound-boxes of talking-machines and the like
IPC: H04R7/00
Filed: 1921-07-21
Abstract: 187,694. Bailey, J. H., and Hardyman, M. A. July 21, 1921. Diaphragms, shape of.-An ebonite diaphragm with one or more concentric circular corrugations A is formed with a plain central portion, as shown.
Patent GB-1388673-A (GB)
Title: Seed distributing machine having a seed flow controller
IPC: A01C7/10
Filed: 1971-06-10
Abstract: 1388673 Seed or fertiliser distributors MASSEY-FERGUSON-PERKINS LTD 26 May 1972 [10 June 1971] 19877/71 Heading AID The distributor has a spirally shaped blanking plate 32 co-operating with outlets 36 from a seed box and movable about an axis 48 to progressively blank off the outlet. Alternatively the plate may be circular and movable about an, eccentric axis. A chute leading to a delivery tube is associated with spindle 38 whereby the spindle can be turned by bar 40 to clamp the chute and member 32 against the wall of the box. A shoulder 54 on the spiral effects a sharp cut-off of the outlet when efficient discharge through the outlet is unlikely. A minimum flow rate is secured by aligning apertures 58 separately or together with the outlet 36. Guides 30 effect movement of seed towards brushes 18 which agitate the seed adjacent the outlets.
Patent GB-201031-A (GB)
Title: Improvements in and connected with hose and pipe coupling
IPC: F16L37/02
Filed: 1922-07-20
Abstract: 201,031. Paterson, B. July 20, 1922. No Patent granted (Sealing fee not paid). Couplings, disconnectible; overlap joints with packing compressed radially on assembly.-In a hose or pipe coupling a packing-ring F on the spigot M is compressed into a recess G in the socket L by a ring E caused to slide along the spigot by rotation of cam members A, B mounted on the spigot. Reference has been directed by the Comptroller to Specification 200,610.
Patent GB-419517-A (GB)
Title: Improvements in and relating to pivot bearings
IPC: F16C17/08
Filed: 1934-07-06
Abstract: 419,517. Pivots. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London. July 6, 1934, No. 19893. Convention date, July 11, 1933. [Class 65 (ii).] The upper pivot of an oscillating electric fan comprises a socket member 11, fixed to the top of the fan motor and containing a coiled spring 12, and a pin 14, screwed into the supporting frame 4, having a conical end to bear in the end coil or coils of the spring. The spring is wound so that the end coils are close together and square with the pivot axis, so as to form an effective bearing for the pin, and is made slightly smaller than the socket, being expanded to fit the socket by the pressure of the spring. The spring takes up any longitudinal movement of the parts, and compensates for wear of the conical end of the pin.
Patent GB-1509226-A (GB)
Title: Metal clasp
IPC: H01R4/50
Filed: 1975-05-12
Abstract: 1509226 Electric couplings SIEMENS AG 12 May 1975 [24 June 1974] 19945/75 Heading H2E A metal clasp or clip for securing a bare wire 5 to a connecting pin 3, in an electrically conductive manner, comprises a channel-shaped member wherein the free marginal zones of the side walls are turned inwardly to form U-shaped edge portions, the inner limbs 6 being bevelled along one end portion and contacting the pin 1. The free edge of each zone includes a plurality of teeth constituting a puntiform contact surface for engagement with the pin. The clasp may be made by punching or stamping from spring-bronze plates and the inner limbs 6 may have corrugated, curved or triangular tooth portions. The portions 7 limit the lateral displacement of the wire 5.
Patent GB-224283-A (GB)
Title: Improvements in portable buildings
IPC: E04B1/343
Filed: 1923-08-03
Abstract: 224,283. Cathcart, E. A. Aug. 3, 1923. Portable buildings; hutches; hvts.-A portable building has the rigid sections of which it is formed provided with interfitting parts on the elements joined together, the whole being fastened by turn-buttons. The floor cross joists a<1> are pinned to the side joists b<2>, e<2>, and the ends of the end frames c, d enter recesses formed at the ends of the front and rear sections b, e by means of battens b<5>, b<6>, the turn-buttons f securing the sections together. The roof frame g<3> fits inside the opening formed by the sections and is secured by turn-buttons f<1>. For extended buildings the sections are fitted together by interfitting slotted parts b<8> on the ends of the sections, a locking strip secured by turn-buttons completing the joint. A covering strip is also used to cover the joint. The roof purlens are half-lapped into the frame uprights and cross bars. An extension may be formed by pivoting a portion n<1> of one side to swing outwards and form a roof to other sections secured together by interfitting parts and turn-buttons, the small aperture being filled by a removable section m<1> also secured by turn-buttons.
Patent GB-314993-A (GB)
Title: Blade ring for radial flow steam- or gas turbines and method of producing the same
IPC: F01D5/04
Filed: 1929-06-29
Abstract: 314,993. Aktiebolaget Ljungstr÷ms Angturbin. July 6, 1928, [Convention date]. Turbines.-In radial-flow turbines the blades 10 are secured by screwing the bond rings 11, 12 on to threaded ridges 15, 16 on the blade roots 50, 51. The parts may be locked by pins 19, or by deforming the metal, or by lashing wires. Instead of forming ridges 15, 16 on the roots, they may be made with threaded recesses. Several modifications are described. In one case the bond rings 11, 12 are made conical so that, when secured, they set up an initial distortion in the blade to counteract the distortion due to centrifugal force. Figs. 5 and 6 show a method of assembling the blades 10. They are arranged root-to-root to form a drum and are held by clamps 24, 25. An easily fused metal is poured through an opening 26 into the annulus between the clamps to keep the blades in position, and the surplus metal 30 on the roots is then machined off and the threads cut on the ribs 15, 16. The ring bonds 11, 12, which are held temporarily in clamps 27 are then screwed on and locked, and the easily fused metal is melted. out.
Patent GB-1150665-A (GB)
Title: Process for the Polymerisation and Copolymerisation of Epoxides
Inventor: OSGAN MASEH
IPC: C07F19/00
Filed: 1966-05-06
Abstract: 1,150,665. Carboxylates and alkoxides of di- and trivalent metals. INSTITUT FRANCAIS DU PETROLE, DES CARBURANTS ET LUBRIFIANTS. 6 May, 1966 [6 May, 1965], No. 20172/66. Heading C2C. [Also in Division C3] Carboxylates, alkoxides of di- and trivalent metals are obtained by heating a compound of the formula with a compound of the formula YO-M-Z at 60-300 C. under anhydrous conditions, wherein M<SP>1</SP> is a trivalent metal of Group III-VI or VIII, M is a divalent metal or metal radical of Group I, II, IV-VIII, Z is a carboxylic acyloxy radical or the group -OR 3 , one of X and Y is a carboxylic acyl radical and the other is a group R 4 , and R 1-4  are monovalent hydrocarbon radicals, the reaction being continued until at least 1% mol. of the theoretical quantity of the by-product ester XOY has been formed. When the atomic ratio M<SP>1</SP>: M is 2, the product is believed to have the formula where R is a hydrocarbon radical, but if less than the theoretical amount of ester XOY is formed, the product may be The ratio of trivalent metal reactant to divalent metal reactant may be in the range 0À01-100, preferably 0À1-10. The reaction is preferably effected in an inert solvent, e.g. hydrocarbons, halogenated hydrocarbons, which may also act as an entraining agent for the by-product ester. The product may also be separated from the ester at the end of the reaction by, e.g., extraction. The metal products are usually soluble in hexane. Specified trivalent metals are Fe, Mo, Cr, V, Ti, Zr, B, Ga, In, Tl, Bi and Sc. Specified divalent metals and radicals are Be, Mg, Zn, Cd, Ca, Sr, Ba, Cu, Sn, Ti, V, VO, TiO, Pd, Pt, Cr, UO 2 , ZrO, Ni, Co, Fe and Mn. The carboxylate reactant may be prepared in situ from the appropriate acid or anhydride and the compounds M<SP>1</SP>(OR) 3  and M(OR) 2 . The -OR groups in the product may be replaced by different -OR radicals by heating with an alcohol or phenol which is less volatile than ROH. Numerous examples are provided, most of which relate to Zn/Al compounds. The products are used as catalysts in the polymerization of 1,2- and 1,3-epoxides (see Division C3).
Patent GB-1076483-A (GB)
Title: Manufacture of semi-conductor devices
Inventor: BERTIOLI MICHAEL MURRAY
IPC: H01L21/22
Filed: 1965-05-13
Abstract: 1,076,483. Semi-conductor devices. JOSEPH LUCAS (INDUSTRIES) Ltd. April 20, 1966 [May 13, 1965], No. 20204/65. Heading H1K. A semi-conductor device is produced by masking part of a surface of a body of one conductivity type, diffusing an impurity of the same type into the exposed parts of the surface, and then diffusing an impurity of the opposite type into the whole of the surface. As shown in the flow sheet, a transistor is produced by forming an oxide mask 12 on part of the surface of an N-type silicon wafer 11, diffusing-in phosphorus to form N+ type regions 13 and 14, removing oxide mask 12 and diffusing-in boron to form P-type base region 15 (the impurity concentration being insufficient to convert the surface parts of region 13), masking with an oxide layer 16 and diffusing in phosphorus to form N-type emitter region 17. Emitter and base contacts are applied to regions 17 and 15 and the collector contact may be applied either to region 13 or to region 14. P-type region 15 may also be formed by diffusing-in gallium when the oxide mask 12 need not be removed since gallium can penetrate it.
Patent GB-1066074-A (GB)
Title: Radar system
IPC: G01S13/28
Filed: 1964-05-14
Abstract: 1,066,074. Pulse compression radar systems. MITSUBISHI DENKI KABUSHIKIKAISHA. May 14, 1964 [May 14, 1963], No. 20223/64. Heading H4D. In a pulse expansion-compression radar system, the transmitted pulse comprises a train of sub-pulses each of a different frequency and of a predetermined duration, and in the received echo signal channel a different delay is imparted to each sub-pulse so as to combine them at a common time point. In the embodiment of Fig. 4, the output from a square-wave generator 4, 5 frequency modulates a carrier wave from a generator 3 and the F.M. signal is fed to a parallel connection of circuits a, b ... m each comprising a band-pass filter 12, amplifiers 13 and 14, a gate 17 and a delay line 19. Each of the filters 12a. . . 12m has a different centre frequency and passes a discrete frequency component of the F.M. signal. Trigger waveforms applied to control inputs 18a. . . 18m open and close the gates 17 to convert these component signals into short pulses which are then differently delayed by the delay lines 19 and combined to form the train of sub-pulses. The train of sub-pulses is passed with the output of a local oscillator 20 to a frequency mixer 21 and the upper side-band is transmitted. An arrangement of synchronized duplexers 10, 11, 15 and 16 switches the parallel-connected circuits a . . . m from the transmitting channel to a receiving channel comprising a local oscillator 8, frequency mixer 9 and video detector 23. The incoming echo signal and the output from the local oscillator 8 are mixed in the frequency mixer 9 and the lower sideband signal is applied to the circuits a . . . m. The frequency of the local oscillator 8 is related to the frequencies of the carrier wave generator 3 and transmitting local oscillator 20 such that the frequency-time spectrum of the train of sub-pulses is reversed. The delays imparted by the delay lines 19 will now combine the subpulses at a common time-point to produce a single high-amplitude pulse which is fed to the video detector 23. In an alternative embodiment (Fig. 6), the train of sub-pulses for transmission is produced by applying a very short duration pulse (26) to a parallel connection of circuits (a . . . e) each comprising a band-pass filter (27) (which may be of the LC or crystal type), a gate (29), an amplifier (31), and a delay line (33) (which may be of the mercury or fused quartz type). Each filter produces an output signal (28) at its (different) characteristic frequency. These output signals in circuits (a ... e) are then gated to produce pulses (30) of predetermined duration, clipped to a uniform amplitude by the amplifiers (31),differently delayed by the delay lines (33), and combined to form the pulse train (35). In other arrangements, the lower side-band may be used for transmission and the upper sideband for reception, and the frequency-changing arrangements may differ. Mathematical relationships between the frequencies of the oscillators 3, 4, 8 and 20, and examples of actual frequencies, are given.
Patent GB-1471524-A (GB)
Title: Partitions
IPC: E04B2/78
Filed: 1973-04-28
Abstract: 1471524 Partitions BPB INDUSTRIES Ltd 29 April 1974 [28 April 1973] 20303/73 Heading E1W Panels 5 of a partition are demountably secured to studs by means of clips 28 secured to the back face of the panel and hooking into slots 2 in the studs. The clips are resilient and of e.g. metal or plastics secured to a reinforcing strip 24 on the panel. The clips are formed so as to clamp the stud and panel together in a camming action and to urge the stud and panel apart when the panels are displaced in the opposite direction. The clips may have sharp ends to penetrate wood or chipboard panels or may have slots in their ends to engage the edges of a struck out aperture in a strip 24 fixed to a plasterboard panel. The studs may be of I, H, J, Z or C- cross section or may be of hollow rectangular cross section. They may be formed of aluminium, steel or rigid plastics. The reinforcing strip 24 may be adhered to the panel along its vertical regions and on its vertical centre line. The studs may be clamped against the ceiling by a floor engaging wedge (22) Fig. 2 (not shown).
Patent GB-792660-A (GB)
Title: Improvements in or relating to temperature sensing devices
IPC: G05D23/24
Filed: 1954-07-12
Abstract: 792,660. Electric control systems. BENDIX AVIATION CORPORATION. July 12, 1954 [Sept. 15, 1953], No. 20345/54. Class 40 (1). In a circuit for creating an error signal in response to deviations of a temperature from a preset value comprising a self-balancing temperature sensitive resistance bridge supplied with alternating current and an amplifier also supplied only with alternating current and comprising several stages of amplification in separate branches responsive to over and under temperature conditions respectively each of the branches is directly fed by the bridge output. Adjacent arms of A.C. bridge 14 are formed by a resistor 12 with a positive temperature coefficient mounted in the inlet duct of a gas turbine and a variable resistor 24. The bridge output is amplified in transformer coupled valves 42, 44 and magnetic amplifier 46. The anodes of valves 42, 44 are supplied with alternating voltage so that only half of each valve amplifies at a time. When the temperature falls from normal the bridge output is amplified in the upper halves of the two valves and causes saturation of the upper core of magnetic amplifier 46 thereby reducing the inductance of the upper windings 72 to give a resultant signal from the bucking output windings 74. When the temperature rises above normal only the lower halves of the valves amplify to cause a reduction of the inductance of the lower windings of the magnetic amplifier thereby giving a signal of opposite polarity from the output windings 74. This signal is applied direct to the control winding of a two-phase motor 18 which operates fuel metering valve 20 (Fig. 1), through gearing 22 and adjusts resistor 24 in a direction to rebalance the bridge. Alternatively a motor may be run directly off the anode currents of valve 44 and the magnetic amplifier omitted. Resistors 32, 34 and 24 are of zero temperature coefficient and the output winding of transformer 50 and input winding of the magnetic amplifier are tuned by capacitors 58, 90 and 92, 94 respectively.
Patent GB-887374-A (GB)
Title: Improvements in and relating to lamp holders
Inventor: ROBERTS CHARLES GEORGE
IPC: H01R33/72
Filed: 1959-06-15
Abstract: 887,374. Lamp-holders. TYER & CO. Ltd. June 13, 1960 [June 15, 1959], No. 20372/59. Class 38 (1). A holder for a lamp with three contacts comprises an insulating base 1 with a bore 2 for receiving the lamp cap, said bore being surrounded on one face of the base by a metal ring 8 from which depend tongues 10 located in grooves 9 in the wall of the bore and having bowed portions projecting from the grooves to engage the metal side wall of the lamp cap which forms one contact of the lamp. The other two contacts, which are on the end face of the lamp cap, engage spring blades 3, 4 projecting across the end of the bore opposite the ring 8. The lamp may be retained in the holder by three bayonet pins and slots asymmetrically arranged so that the lamp can only be inserted in one angular position. Mounting bolts, such as 11, project from pillars, such as 13 with chamfered surfaces 15 which incline the holder to a surface on which it is mounted
Patent GB-1141298-A (GB)
Title: Disc brakes
Inventor: DEWAR DOUGLAS
IPC: F16D65/12
Filed: 1965-05-14
Abstract: 1,141,298. Disc brakes. DUNLOP CO. Ltd. 9 May, 1966 [14 May, 1965], No. 20380/65. Heading F2E. A brake disc assembly comprises a spider, as is described in Specification 1,119,207, having at its outer periphery an axially extending cylindrical portion which has a flat annular end face, the spider being rotatable with the hub of a vehicle wheel, and a disc 1, which is formed of two portions 2, 3 each secured by bolts to the end face of the cylindrical portion and which is keyed to the spider by drive dogs inserted into slots 4 in the disc portions and in the spider, so that there is provided an annular disc split in a diametral plane. The ends of the disc portions are chamfered as at 13 to provide a smooth passage for the friction pads over the gaps between the adjacent ends of the disc portions as the disc rotates.
Patent GB-480589-A (GB)
Title: Improvements in or relating to absorption or adsorption refrigerating apparatus
IPC: F25B17/08
Filed: 1936-07-23
Abstract: 480,589. Refrigerating. KLEEN, N. E. AF, and PRESSED STEEL CO., Ltd. July 23, 1936, No. 20438. [Class 29] Absorption machines and systems.-Reversing machines of the kind employing solid absorbents are provided with means within the generator-absorber for trapping condensed refrigerant returning thereto. In a machine in which the absorbent is supported on perforate plates 15, condensate returning through the vapour outlet pipe 20 flows through the tube 21. to the compartment 23 of the generator-absorber and is subsequently evaporated. In a modification, the condensate collects in a tray 32, Fig. 4. In another arrangement, the condensate is absorbed by a substance, e.g. lithium nitrate, contained in a tray 46, Fig. 5.
Patent GB-421042-A (GB)
Title: Improvements in and relating to lighting fixtures for electric gaseous discharge lamps
IPC: F21V17/00
Filed: 1934-07-12
Abstract: 421,042. Gaseous discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. July 12, 1934, No. 20484. Convention date, Aug. 18, 1933. [Class 39 (i)] [See also Group XI] A street-lighting unit comprises a casing 10, supporting a lamp socket 12, a gaseous discharge lamp 20, a reflector 36, and a lamp jacket 30 spaced from the lamp, resilient spacing means, such as a spring 45, being provided between the end of the lamp and the jacket for maintaining the spaced relation between them. The jacket 30 is double-walled, the space between the walls preferably being evacuated. A ring 31, consisting of a steel spring wrapped with asbestos tape, prevents exchange of air between the outside and the space between the lamp 20 and jacket 30. For supporting the jacket 30, a split ring engaging the jacket is formed as a flange 40 partly severed from a ring 34 which has an outer flange 38 making a pin and bayonet slot engagement with the sleeve 35 on the reflector 36. The reflector 36 consists of two confocal paraboloidal surfaces, the axes of which are at a slight angle to each other in a horizontal plane, with intermediate radially corrugated sections. The casing 10 carries a transformer 11 which supports the socket 12. An oxide film cut-out device may be mounted in the casing 10, so as to be removable independently of the lamp. Specification 175,032, [Class 39 (i)], is referred to.