baber/WOPTO huggingface dataset:
Patent GB-1345810-A (GB)
Title: Method and apparatus for sorting glass particles from a particulate mass
IPC: B07C5/342
Filed: 1971-11-17
Abstract: 1345810 Separating glass particles from refuse SORTEX CO OF NORTH AMERICA INC 17 Nov 1971 [18 Nov 1970] 53386/91: Heading B2H [Also in Division G1] Refuse is pulverised and sorted by a succes-  sion of known separators, vibrating screen, magnetic, air flotation, washing and incinerating in order to isolate glass particles and these are passed singly in succession through the centre of a photo-electric sensing zone in which a plurality of detectors are directed across the centre to a reference surface, those particles producing a signal above a threshold value being separated from the others. The glass may be separated on a colour basis or flint glass may be extracted. The preliminary stages may incorporate means for size grading the particles, and the particles to be separated may be diverted by air blast and a splitter plate in response to the photo detector output, as they fall through the inspection zone.
Patent GB-1073565-A (GB)
Title: Process for preparing detergent alkylate
Inventor: RAKESTRAW JAMES ALLAN
IPC: C07C2/70
Filed: 1965-12-16
Abstract: Preformed detergent alkylate is treated with hydrofluoric acid in the presence of benzene, resulting in the removal of unsaturated components which are believed either to dissolve in the acid phase or react with benzene to form a residue, or both. Preferably, the treatment is part of an overall acid alkylation process in which the alkylate product leaves the alkylation zone, is stratified, and the upper hydrocarbon layer treated as above. It is permissible for some alkylation to take place during this treatment stage, but the major proportion must have already taken place.  If the treated crude alkylate contains sufficient unreacted benzene further addition of the same is unnecessary. The treatment may be carried out at temperatures of - 30 DEG  to 70 DEG  C., the pressure being sufficient to keep the reactants in the liquid phase, and the hydrofluoric acid used preferably containing less than 3% of water. The effluent from the treatment is separated conventionally, e.g. an initial layer separation, the acid phase passing to regenerating means, and the hydrocarbon layer being flashed to remove most of the benzene, and then treated is as many distillation columns as desired to remove other hydrocarbon impurities.  Flow sheets are used to illustrate alkylation processes incorporating an after-treatment in accordance with the invention.
Patent GB-1202118-A (GB)
Title: Improvements in polymerization process
IPC: C08F236/06
Filed: 1968-11-12
Abstract: 1,202,118. Polymerization of butadiene. GOODYEAR TIRE & RUBBER CO. 12 Nov., 1968 [15 Dec., 19671, No. 53480/68. Heading C3P. Butadiene is polymerized in the presence of a catalyst comprising (1) an organometallic compound in which the metal is from Group I, II or III of the Periodic. System, (2) a nickel and/or cobalt compound which is a salt of carboxylic acid, an organic complex of nickel or cobalt, or a carbonyl of nickel or cobalt, (3) boron trifluoride or a complex thereof with an electron donating compound, and (4) carbon disulphide. Polymers prepared using this catalyst have a high molecular weight and a high cis-1,4 content. In the examples, butadiene is polymerized in benzene in the presence of a catalyst comprising carbon disulphide, triethyl aluminium, nickel octanoate and a complex of boron trifluoride with diethyl ether, phenol, benzaldehyde or benzophenone.
Patent GB-1196409-A (GB)
Title: Improvements in or relating to Electronic Switching Circuits
Inventor: WINDSOR RICHARD CHARLES
IPC: H03K17/60
Filed: 1966-11-30
Abstract: 1,196,409. Transistor switching circuits. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. 29 Nov., 1967 [30 Nov., 19661. No. 53734/66. Heading H3T. A switching circuit for normally clamping the potential of a signalling path CX-DX at a predetermined value and for allowing signals to be transmitted over the path during the application of control signals to the circuit comprises a pair of transistors TA, TB having their bases connected through individual resistors RA, RB to a control signal lead S, the collector of one and the emitter of the other connected to the signal path CX-DX and the emitter of the one and collector of the other connected to a source of potential (ground). With a negative signal on lead S, transistors TA, TB are cut off and information is transmitted by path CX-DX, whilst with a positive signal on lead S, both transistors are saturated and the signal on path CX DX is shunted to ground, positive signals passing via transistor TA and negative signals via transistor TB. As shown, the signal path lies between a readout amplifier TO of a memory array and an output register toggle TX, TY, and the switching circuit TA, TB prevents spurious operation by shunting to ground the noise occurring on the path between digital pulses. Transistors TA, TB are switched on for the duration of each digital pulse. The circuit may alternatively be used as a D.C. chopper. Transistors TA, TB are preferably of high amplification factor and high base-emitter breakdown voltage, e.g. planar high speed switching transistors.
Patent GB-1172391-A (GB)
Title: Lifting Device for Patients during Treatment in Two-Compartment Extreme Hyperthermy Baths
Inventor: ARDENNE MANFRED VON
IPC: A61G7/10
Filed: 1966-12-01
Abstract: 1,172,391. Lifting device for patients. M. VON ARDENNE, J. HELLER, G. JAEGER and H. RUMBERG. 1 Dec., 1966, No. 53804/66. Heading A4N. [Also in Division B8] A lifting device for patients during treatment in a two-compartment extreme hyperthermy bath 1 comprises a stretcher 6 (Fig.1 which is fixed at one end and connected to a partition for dividing the bath into a head compartment 1a and a body compartment 16. It may be controllable by a pedal 8 or plurality of pedals when the stretcher is in the free position. There may be a push button control for controlling, lifting movement of the stretcher when in the locked operating position. A magnetic valve may be provided for altering the lifting movement from slow to fast. The lifting movement may be carried out by electric, hydraulic, pneumatic or electro-hydraulic means 7. A series of transversely stretched waterproof belts 16 is provided as well as a sheet metal frame 17 with wedge-shaped side portions 18. Rubber sealing profiles 19 engage into corresponding wedge-shaped recesses in the side walls of the bath, when the stretcher is lowered therein. The partition 20 has an opening 21 for the patient's neck and is secured in the sheet metal frame in a watertight manner.
Patent GB-1495008-A (GB)
Title: Memory mechanism for a cyclic indicator
IPC: G04C17/00
Filed: 1974-12-13
Abstract: 1495008 Date indicators COPAL CO Ltd 13 Dec 1974 [15 Dec 1973] 54089/74 Heading G3T A memory mechanism for controlling an indicating device having a first cyclic indicator (e.g. for the date in the month) and a second cyclic indicator (e.g. for the month) which must be advanced when the first one has completed all or part of its cycle (depending on the number of days in the month) comprises a first memory wheel 9 attached to the first (date) indicator and provided with at least one cam recess 18 and with pins 10 to produce intermittent advance of a pinion 12 and thus of a wheel 13 coupled to a second memory wheel 15, the latter being coupled to the second (month) indicator and having cam recesses 19a-e, and a lever 22 whose arms 24 engage the two memory wheels so that when the arms drop simultaneously into recesses in the wheels the lever 22 pivots and causes an advance of the first indicator independently of the normal advance thereof. The mechanism is described controlling a calendar portion of a digital clock, and as shown a motor 1 is energized daily to advance the wheel 9 through one thirtyfirst part of a revolution. Recess 18 corresponds to the last three days of the month and recesses 19a-e to the ends of the short months. The lever 22 is biased anti-clockwise by a spring 21 so that when the lever pivots a further arm 25 fixed to the lower arm of the lever moves a pivotal actuator 27 to close a switch 30, thus producing one or more additional advances of the wheel 9 e.g. at the end of Feb 28th. To correct for leap years, a gear 32 is carried epicyclically on the wheel 15 and is rotated by one quarter turn annually by cooperation with fixed boss 33. A finger 34 is thus brought into position, every four years, to cover the portion of cam recess 19e corresponding to Feb 29th. A detent coupling between the wheels 13, 15 permits independent setting of the month indicator. In an alternative embodiment, the first memory wheel is a ratchet wheel (131), Fig. 3 (not shown) which is advanced by one of its thirty-one teeth per day by a reciprocating pawl (132) and carries a cam (134). The cam loads a spring-biased drive lever arrangement (136, 139) which produces additional advance of the ratchet wheel (131) when released by the control lever (122) as the arms (124) thereof drop into the memory wheel recesses.
Patent GB-1404730-A (GB)
Title: Vertical baler
IPC: B30B9/30
Filed: 1973-11-22
Abstract: 1404730 Baling scrap material PIQUA ENG Inc 22 Nov 1973 54204/73 Heading B8C [Also in Division B5] An hydraulically-actuated baler for scrap paper &c., has a prefabricated roof assembly 26 comprising a trough 36 extending between side members 28 and 30 securing the assembly to baler walls 16, 18 and 20, an hydraulic reservoir 44 in the trough, an hydraulic cylinder unit 70 attached to the trough bottom, and a pump 52 mounted on the trough and connected through a valve unit 62 to each end of the cylinder unit for effecting displacement of a plate 84 towards and from a base 12 of the baler. A sliding gate 94 is held to an open position by the platen when in its raised position. Actuation of the cylinder unit lowers the platen to compress scrap, which has been previously fed through the sliding gate opening into the baler; against the base. The cylinder unit extends through the trough bottom and is releasably secured thereto to bolts 34 so that, on removal of the bolts with the platen in a lower position, the cylinder can be hydraulically retracted downwardly into the baler to facilitate shipment of the baler. Channel members 90 and 92 are provided on opposed faces of the platen and base and vertical slots 104 extend through baler rear wall so that baling rope or wire can be looped around the compressed bale formed. The channel members and slots also accommodate bale ejector chains 106. If the scrap is to be compressed into a bag or box, the channel members 90 and 92 are omitted. A pressure switch 122, Fig. 6 (not shown), in the hydraulic feed to the cylinder is actuated when a predetermined baling pressure is reached to retract the platen.
Patent GB-1363750-A (GB)
Title: Electric switch
IPC: H01H35/14
Filed: 1971-11-22
Abstract: 1363750 Inertia switch DYNAMIT NOBEL AG 22 Nov 1971 [30 Nov 1970] 54212/71 Heading H1N An electric switch, Fig. 1, actuated in response to acceleration of the switch, comprises a conductive casing 3 having fixed contact surfaces 10, 11 and movable contact members 6 biased into contact with surfaces 10, 11 by spring 7 and mounted on a conductive pin 1 the pin being fixed in a non-conducting bush 2, the free end of the pin locating in an insulating bush 4 of a hollow axially adjustable threaded conductive member 5. The adjustable member is screwed inwardly to set a predetermining compressive force in the spring and then soldered around its junction with the conductive part 13. A insulated bush 14 insulates the member 13 from the case. The electrical circuit is established from lead 19 through the member 5 and the associated member 6, through the spring 7 to the other contact member 6 and via the casing 3 to the other lead 20. Any forces, in line with the direction of the pin 1, of sufficient magnitude to overcome the bias of the spring cause the contacts to be broken. The contact members may have different masses and the compression adjustment screw may be dispensed with (Fig. 5, not shown). The casing may be filled with a gas or liquid such as silicone oil or glycerine in order to provide desired different clamping properties. Such fluid is introduced via the aperture 17 and sealed with the screw 16. In Fig. 7 the solid contact members are replaced by hollow members 6d which engage contact faces 23 on tubes 22a, the surface 24 of the tube being insulated to prevent accidental contact during operation. Insulation on the inner surface of the case may also be provided or the case may be of insulated construction. As before a solder layer 28 seals the switch after the adjusting screw 22 is preset. Switches responsive to several directions of acceleration may be formed in a single ease or by a combination of several switches.
Patent GB-1243717-A (GB)
Title: Box for confectionery such as sweets and chocolates
IPC: B65D5/10
Filed: 1969-11-05
Abstract: 1,243,717. Cartons. P. FERRERO & C. S.p.A. 5 Nov., 1969 [7 Nov., 1968], No. 54335/69. Heading B8P. A polygonal box of plastics or cardboard comprises an open topped body 2 and a lid, the lid having side walls 3 and a tongue 15 hinged to each wall and folded in to interlock with adjacent tongues by means of a bulbous portion 19.
Patent GB-1319923-A (GB)
Title: Short trajectory projectile
IPC: F42B10/52
Filed: 1971-11-24
Abstract: 1319923 Short trajectory projectile WERKZEUGMASCHINENFABRIK OERLIKONBUHRLE AG 24 Nov 1971 [8 Dec 1970] 54514/71 Heading F3A A short trajectory projectile comprises a body 1, a separable head 5 at least part of which melts due to air resistance, a plastics casing 9 formed with a driving band 10, and a cover 11. Upon firing, the casing 9 and cover 11 are first discarded due to centrifugal force. The part 8 is then melted by the impinging air stream and allows air to enter the space 7, whereupon the head 5 is burst by the increased pressure and separates from the body 1. Air then flowing into bore 2 and outwardly through radial bores 3 produces turbulence on the external surface of the body 1 with a consequent braking effect.
Patent GB-1428796-A (GB)
Title: Method for purifying dicumyl peroxide
IPC: C07C407/00
Filed: 1973-11-23
Abstract: 1428796 Dicumyl peroxide NIPPON YUSHI KK 23 Nov 1973 54588/73 Heading C2C Dicumyl peroxide is purified by mixing a melted reaction mixture containing not less than 50% by weight of dicumyl peroxide with an aqueous solution of a surfactant sufficient in amount and concentration to emulsify the reaction mixture, and cooling the emulsion to a temperature lower than the temperature for solidifying dicumyl peroxide while keeping the emulsified state. The purified dicumyl peroxide separates as fine crystals. The surfactant may be anionic, cationic or nonionic or ampholytic.
Patent GB-1293589-A (GB)
Title: Rubbery copolymer compositions
IPC: B60C1/00
Filed: 1969-11-11
Abstract: 1293589 Solution polymerized SBR rubbers ASAHI KASEI KOGYO KK 11 Nov 1969 [14 Nov 1968] 55118/69 Heading C3P A composition suitable for tyre treads comprises 100 parts by weight of a rubber comprising a rubbery butadiene-styrene random copolymer polymerized with a lithium based catalyst, said copolymer containing from 5 to 30% by weight of styrene and at least 60% of the butadiene units in the 1,4-linkage and having a Mooney viscosity (ML 1-4 100‹) of 40 to 150 and a relaxation time from 20 to 200 sec. as measured by a Mooney viscometer at the same temperature, 25 to 75 parts by weight of a process oil having a VGC of not less than 0À850 and 40 to 100 parts by weight of carbon black. The rubbery component can be a mixture of such random copolymers or a blend of one or more such random copolymers with another rubber such as polybutadiene.
Patent GB-1245812-A (GB)
Title: Method of, and apparatus for producing filaments from vitreous materials
Inventor: SCHULLER WERNER HUGO WILHELM
IPC: C03B37/03
Filed: 1968-11-21
Abstract: 1,245,812. Producing glass filaments. W. H. W. SCHULLER. 21 Nov., 1968 [23 Nov., 1967], No. 55383/68. Heading C1M. In drawing filaments from vitreous thermoplastic material, threads 2a, 2b, 2c of molten vitreous material contact the surface of a rotating drawing drum 1 at a first location and are carried and drawn thereby to a scraper 4 where the filaments are stripped off the drum, sizing material being applied directly to the surface of the drum. Apparatus is also claimed comprising the drum 1, stripping means 4 and applicator means 9 for the size at a point upstream of the first location and downstream of scraper 4. The applicator means 9 may comprise dispensing means reciprocating along the length of the drum to spread size over the drum, or may comprise means for dripping or spraying the size on to the drum. The speed of rotation of the drum may cause the formation of an entrained boundary gaseous layer G or G<SP>1</SP>, whose motion may prevent proper sizing material application. To prevent this a baffle 8 may be provided upstream of applicator 9, and this baffle causes a current S which assists size deposition on the drum. The baffle may be adjustable so that it may move in directions B, C, D and E as shown, and it may be deflected about axis 12 when contacted with material that may adhere to the drum.
Patent GB-1234994-A (GB)
Title: Silver halide photosolubilization process
IPC: G03C1/492
Filed: 1968-11-21
Abstract: 1,234,994. Photographic photo-solubllization process. E.I. DUPONT DE NEMOURS & CO. Nov.21, 1968 [Nov.22, 1967; Dec.11, 1967; June 25, 1968], No. 55398/68. Heading G2C. A positive silver halide image is obtained by treating an imagewise exposed photo-soluble silver halide emulsion layer with a solution containing a silver halide solvent and a silver halide reducing agent in the presence of Dmax maintaining amounts of a Dmax maintaining agent, so that the amount of exposed silver halide dissolved by the solvent is at least three times the amount of exposed silver halide reduced by the reducing agent. The Dmax maintaining agent is an organic compound devoid of ionizable iodine or oxidizing or reducing groups which are active at the working pH, which compound acts to retard the solution in silver halide solvents of unexposed photo-soluble silver halide. The reducing agent and the Dmax maintaining agent may be present in the silver halide, solvent solution or in the silver halide material. The photo-soluble silver halide emulsion is made by adding 2-mercapto-4-phenythiazole, 2-mercapto -4: 5-diphenyl-imidazole, 2-mercapto-4: 5- diphenyloxazole or 2-mercapto-quinoline to a silver halide emulsion. Silver halide reducing agents are NaBH 4 , ferrous oxalate complex, ascorbic acid 1 -phenyl-3-pyrazolidone, metol, hydroquinone and p-diethylamino aniline hydrochloride. Dmax maintaining agents include o-phenylphenol, 1: 2- dichloroethane, 1: 2-dichloroethanol and 1-(1- naphthyl)-2-thiourea. Silver halide solvents used are alkali-metal and ammonium thiosulphates. The silver halide may be spectrally sensitized with sensitizing dyes and chemically sensitized e. g. with sodium thiosulphate tetramethyl thiuram monosuiphide, potassium selenocyanate, gold compounds or reduction sensitizers.
Patent GB-1213169-A (GB)
Title: Improvements in or relating to methods of magnetic recording
Inventor: LEE JOHN EDMUND
IPC: G11B5/03
Filed: 1967-12-06
Abstract: 1,213,169. Magnetic recording. INTERNATIONAL COMPUTERS Ltd. 2 Dec., 1968 [6 Dec., 1967], No. 55516/67. Heading G5R. Information is recorded on a high coercivity planar record 10 by energizing a first winding 13 with information signals to produce a varying field parallel to the record and across a gap 8, and simultaneously energizing a second, bias winding 12 to produce a D.C. bias field substantially perpendicular to the record 10 in the vicinity of the gap. The second winding may form part of an electromagnet located opposite the gap, or as shown may be wound on the same ferrite or alloy core. In a modification (Fig. 2, not shown) a conventional C-core (15) has an integral C-core (16) sharing one polepiece (21) and having the other polepiece located on the opposite side of the record. The record may be a tape or disc with a cobalt coating.
Patent GB-1201626-A (GB)
Title: Process of obtaining derivatives of quinazoline-3-oxide
Inventor: SORRENTINO PASQUALE DOMENICO
IPC: C07D239/76
Filed: 1967-12-08
Abstract: 1,201,626. Quinazoline-3-oxides. DUMEX (DUMEX Ltd.) A.S. 6 Dec., 1968 [8 Dec., 1967], No.55991/67. Heading C2C. Quinazoline-3-oxides of the Formula I Wherein X is a hydrogen or halogen atom or a nitro group, R is a hydrogen atom or an amino, nitro, C 1-7  alkyl or C 1-7  haloalkyl group, and R<SP>1</SP> is a hydrogen atom or a C 1-7  alkyl, phenyl or substituted phenyl group, are obtained by reacting o-amino-oximes of the formula NH 2 -C 6 H 3 X-CR<SP>1</SP> = NOH with imido esters of the formula where R<SP>2</SP> is a C 1-7  alkyl group, or mineral acid salts thereof.
Patent GB-1165187-A (GB)
Title: Semiconductor Structure Employing a High Resistivity Gallium Arsenide Substrate
IPC: H01L21/308
Filed: 1966-12-15
Abstract: 1,165,187. Semi-conductor devices. TEXAS INSTRUMENTS Inc. 15 Dec., 1966 [30 Dec., 1965 (2)], No. 56131/66. Heading H1K. A semi-conductor structure for an integrated circuit comprises a high resistivity monocrystalline GaAs substrate 10 having in one face several islands of Ge, each island consisting of two layers, e.g. 20a, 32, having different conductivities and being epitaxial both with each other and with the substrate 10. The substrate preferably contains Cr as a dopant. The structure may be made by etching pits in the substrate 10 through a SiO 2  mask, removing the mask and epitaxially depositing Ge from the vapour of GeCl 4  in H 2  at 850‹ C. over the entire substrate. The Ge layer so formed is of low resistivity N-type conductivity, due to the presence of As released from the substrate. This Ge layer is then lapped away to leave only isolated islands 20a, 20b in the pits, and part of each island is then removed by further etching through a mask of SiO 2 . Further Ge 32, 34 of higher resistivity is then deposited on each island to fill the pits again, and individual components such as transistors are formed in each island, being interconnected by metal tracks extending over an oxide coating. In a particular example an NPN transistor is formed by successive diffusions of In and As into an N-type Ge island through a phosphorus-doped silicon oxide mask. According to an alternative process the low resistivity Ge material may be deposited in the etched pits in the GaAs substrate through a SiO 2  mask, in which case the lapping step is avoided.
Patent GB-1305128-A (GB)
IPC: C08J9/30
Filed: 1970-11-25
Abstract: 1305128 Urea-formaldehyde foamed bodies ELECTROLUX AB 25 Nov 1970 [28 Nov 1969 26 March 1970] 56135/70 Headings C3C and C3R Urea-formaldehyde foamed bodies are made by separately feeding into a confined mixing zone having a foam ejection nozzle connected thereto and means for injecting compressed air, two aqueous solutions, the first solution being neutral to alkaline and containing 30 to 50% by weight of a precondensation product of urea with formaldehyde Laving a molar formaldehyde to urea ratio of between 1À8:1 and 22:1 and 10-20 ml./l. of an aqueous solution containing 50% by weight of a sulphite waste liquor on a dry basis, and the second solution containing an acid catalyst or hardener and 2 to 8% by weight of a foaming agent selected from alkyl, aryl and alkylaryl sulphonates. After mixing in the zone, the mix is foamed by compressed air, ejected from the zone via the nozzle and subsequently set. The preferred hardeners are phosphoric, formic and oxalic acids. The first solution may contain a small amount of a foam shrink preventative such as calcium carbonate, and also copper phthalocyanine as a flame-proofing agent. Fillers or extenders such as glass fibres, quartz powder, and asbestos may be added to the first solution. A flow-type diagram of apparatus suitable for carrying out the process is also included in the Specification. The foamed bodies may have densities from 4 to 40 kg./m.<SP>3</SP>