baber/WOPTO huggingface dataset:
Patent GB-1209753-A (GB)
Title: Improvements in electrical accumulators
IPC: H01M4/60
Filed: 1967-10-27
Abstract: 1,209,753. Accumulator charge control electrode with organic catalysts. ROBERT BOSCH G.m.b.H. 27 Oct., 1967 [28 Oct., 1966], No. 48907/67. Heading H1B. In a gastight electrical accumulator operating on an oxygen cycle (i.e. having excess capacity in the negative electrode when charging), a porous control electrode responsive to oxygen contains as active component an organic catalyst, a reduced form of which is oxidized in situ by oxygen to an electrochemically reducible form, and carbon to render the electrode conductive. Organic catalysts described include condensates of aldehydes with quinoneforming dihydric phenols, or with certain dyestuffs, e.g. triphenylmethane or phthalein series vat dyes, or with a phenol in the presence of such dyes, and also metal phthalocyanines and metal porphyrins. In examples electrodes are prepared (i) from acetylene black and graphite, mixed with hydroquinone, phenol, pphenolsulphonic acid, water and formalin then with a fume silica and petrol, the mixture being moulded and cured; and (ii) from cobalt phthalocyanine precipitated from H 2 SO 4  by water into the pores of a carbon filter. The current and potential arising between these electrodes, partly immersed in the electrolyte of a lead-acid battery, and the negative electrode is observed during charging. Preferably the external switching circuit is adjusted to prevent the current from the negative pole of the cell to the control electrode from exceeding 1 mA. when the potential difference is below 400 mV.
Patent GB-1324787-A (GB)
Title: Purification of p-aminophenl
Inventor: BARON F A
IPC: C07C215/76
Filed: 1970-10-15
Abstract: 1324787 Purification of p-aminophenol HOWARD HALL & CO 15 Oct 1970 [16 Oct 1969] 49114/70 Heading C2C p-Aminophenol is purified by contacting the crude p-aminophenol with a solvent for the impurities selected from benzene, toluene, xylenes and alkyl acetates having an alkyl moiety containing from 2 to 8 carbon atoms and separating the purified p-aminophenol.
Patent GB-1245503-A (GB)
Title: Device for stabilizing distance between tool secured on support of machine and surface of blank
Inventor: SITNICHENKO VALENTIN MIKHAILOV
IPC: B23K7/10
Filed: 1969-10-07
Abstract: 1,245,503. Automatic position control. VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY INSTITUT KRIOGENNOGO MASHINOSTROENIA. Oct. 7, 1969, No. 49131/69. Heading G3R. At least two pairs of detectors located on opposite sides of the axis of a tool to measure the distance to a workpiece are each associated with an "or" circuit the outputs of which are applied to an "and" circuit controlling the tool drive to stabilize the position of the tool relative to the blank. Fig. 2 represents, in plan view, feeler rods 7-14 equally spaced round the axis 17 of a gas cutting tool (not shown) which is lowered towards a workpiece (not shown) by the operation of a drive 6. As the feelers make contact with the work they produce signals, e.g. inductively, which are applied to "or" gates 18-21 and the arrangement is such that it is only necessary for one of each of the pairs of oppositely positioned feelers to make contact for all the gates to be operated so that an "and" gate 22 operates through a power amplifier 5 to reverse the drive 6 and move the cutter away from the workpiece. The system serves to maintain the distance between tool and workpiece substantially constant even if the plane of the workpiece surface is not normal to the tool axis. Arrangements involving greater and lesser numbers of feelers are referred to.
Patent GB-1363717-A (GB)
Title: Methods of making electrets
IPC: H01G7/02
Filed: 1971-10-26
Abstract: 1363717 Electrets WESTERN ELECTRIC CO Inc 26 Oct 1971 [2 Nov 1970] 49605/71 Heading H1M In a method of manufacturing an electret from a polymer foil, the foil 10, optionally metallized at 12, is placed, with an insert 23 of dielectric material, between electrodes 21, 22 and a potential difference is applied, sufficient to cause partial breakdown in the foil 10 but insufficient to cause breakdown in insert 23. Preferably the thickness and resistivity of the material of layer 23 are chosen so that the resistance of the-layer is greater than that of foil 10, and the voltage is chosen to give a current density of 10<SP>-8</SP> to 10<SP>-6</SP>A/cm.<SP>2</SP>. Layer 23 may be soda-lime glass of resistance 10<SP>9</SP> to 10<SP>12</SP> ohms for an area of 10 to 100 cm.<SP>2</SP>. The polymer may be polyethylene terephthalate, P.T.F.E., or a, fluorinated ethylene polymer. The process may be carried out at room temperature and atmospheric pressure. The electret formed has a homocharge and is suitable for use in an electroaccoustic transducer (Fig. 1, not shown).
Patent GB-1017340-A (GB)
Title: Method of making a fluid filter of coiled form
IPC: B01D25/24
Filed: 1964-12-10
Abstract: 1,017,340. Making fluid filters of coiled form. MINE SAFETY APPLIANCES CO. Dec. 10, 1964.[Jan. 8, 1964], No. 50296/64. Headings BID and B1T. A corrugated aluminium separating strip 1, Fig. 1, with a flexible cord 2 of similar thickness extending along one edge is laid on a wider filtering strip 3, and a second filtering strip 6 and a separating strip 7 with a cord 8 along its other edge is laid on strip 1, the cords being spaced from the filtering strip edges but the uncorded edges of strips 1, 7 being flush therewith. This assembly is rolled round a former 4 and one end of the resulting coil, Fig. 4(not shown), is dipped in viscous thermosetting plastics, Fig. 6, which drains from the exposed separating strip but adheres to the cord. The coil is inverted and heat-cured, and then the other end is similarly treated, resulting in a coil, Fig. 7, in which one separator strip is exposed at one end and the other separator strip exposed at the other end, the coil being used for filtering with flow axially of the coil. In a second embodiment, each separating strip is made of cardboard, and has a cord along each edge, one cord being removed, Fig. 14, after dipping and inversion but before curing, from each end of the coil, to result in the same end product as in Fig. 7. Additional cords may temporarily be placed between the edges of filtering strips and the cords shown to facilitate rolling, but are removed before dipping.
Patent GB-1256165-A (GB)
Title: Improvements relating to methods and apparatus for emptying closed sacks filled with particulate material
IPC: B65B69/00
Filed: 1969-10-15
Abstract: 1,256,165. Sack emptying apparatus. WELVO N.V. 15 Oct., 1969 [15 Oct., 1968], No. 50681/69. Heading B8C. An apparatus for emptying sacks containing particulate material comprises two rotors rotatable stepwise in opposite directions about shafts 2 and 3 each rotor including four carrier partitions 8 and 9 provided with upstanding hollow lances 10 and 11 having air outlets and a rotating knife 30 carried by a pivoted arm 31. Each carrier partition 8 and 9 consists of a plurality of parallel finger-like members (14, Fig. 2). These finger-like members (14) include upstanding retaining pins 12 and 13. Groups 17 and 18 of stationary stripper elements remove empty sack halves 38d<SP>1</SP> and 38d<SP>11</SP> from the finger-like members (14). Alternatively the stripper elements are rotatable on shafts parallel to the shafts 2 and 3 or the sack halves 38d<SP>1</SP> and 38d<SP>11</SP> are removed by making the hollow lances 10 and 11 retractable. The apparatus is totally enclosed in a dust-tight casing 1 with an inlet for full sacks, an outlet 28 for the particulate material passing through grids 25 and 26, and outlet channels 19 and 20 for empty sack halves 38e<SP>1</SP> and 38e<SP>11</SP>. Dust filters (36) are located before a fan 37 which maintains a partial vacuum within the casing 1. The sacks are loaded on to the rotors by a throwing conveyer (34).
Patent GB-1164700-A (GB)
Title: Photographic Supersensitized Emulsions
IPC: G03C1/29
Filed: 1967-11-09
Abstract: 1,164,700. Pyrimidine derivative. EASTMAN KODAK CO. 9 Nov., 1967 [22 Dec., 1966], No. 50962/67. Heading C2C. [Also in Division G2] 2 - Dimethylamino - 1 : 3 - pyrimidine - 4: 6 - diol is made by heating 1: 1-dimethylguanidine sulphate in sodium methoxide/methanol with diethyl malonate.
Patent GB-1090209-A (GB)
Title: Separation of 2,2,4-trimethyl 4(4'-hydroxyphenyl) chroman and 2,2(2,4'-dihydroxydiphenyl)propane from mixtures containing them
IPC: C07D311/58
Filed: 1965-12-01
Abstract: 2,2,4 - Trimethyl - 4 - (41 - hydroxyphenyl)-chroman is separated from its mixture with a diphenylolpropane by adding a C1- 10 aliphatic alcohol, a C3- 6 aliphatic ketone or a C1- 6H0- 1 chlorinated hydrocarbon, and separating the solid chroman-clathrate which forms.  Specifically, the mixture is one which has been obtained in the production of 2,2-bis-(p-hy-droxyphenyl) propane, and it contains the o, p1-isomer of the latter mixed with the chroman. Clathrating agents mentioned are MeOH, EtOH, PrOH, BuOH, Me2CHOH, Me3COH, AcMe, AcEt, Et2CO, CCl4, CHCL3, C2HCl3 and C2Cl4.
Patent GB-1167856-A (GB)
Title: Control System for an Electric Blanket.
Inventor: LAUCK PETER III
IPC: H05B3/34
Filed: 1966-11-15
Abstract: 1,167,856. Electric blankets. P. LAUCK. 15 Nov., 1966, No. 51121/66. Heading H5H. [Also in Division G3] An electric blanket comprises a top section of a regular napped textured blanket material, a cloth reflector coated with aluminium on its underside to reflect heat towards the sleeping area, an insulated metal coated layer comprising printed wire circuitry forming the heating element, and a final layer of a thermal leno or crochet open-mesh material. The electric blanket may serve as a bedspread when turned on the thermal leno surface. Temperaturesensing thermistors are incorporated, one of which may be in the part of the blanket normally near the feet of a sleeper and another adjacent to the chest area. An automatic control circuit for the blanket is described in the Specification (see Division G3).
Patent GB-1081110-A (GB)
Title: Production of alumina particles
IPC: C01F7/441
Filed: 1964-12-18
Abstract: Alumina particles are produced by precipitating amorphous alumina from a solution of an acidic salt of aluminium (e.g. by adding ammonium hydroxide to aluminium chloride or nitrate), separating the precipitate, suspending the alumina in an aqueous medium to which no acid has been added, thereafter, while maintaining the alumina in a form having crystallite sizes not exceeding those of the "pseudoboehmite" state, spray drying the suspension into small particles, subsequently calcining the particles and recovering the attrition resistant alumina particles.  In this Specification the "pseudoboehmite" state is defined as a variant hydrate of alumina intermediate between amorphous alumina and boehmite, and having crystallite sizes of 25-30 <\>rAngstroms.  In such a state the particle sizes are about 25 to about 30 <\>rAngstroms.  To maintain the pseudoboehmite state the precipitate, before suspension in the aqueous medium, may be washed with water or a dilute ammonium hydroxide solution to leave in the precipitate an amount of acid ion which retards crystal growth during suspension and spray drying, e.g. 0.2 to 0.3 wt. per cent chlorine content may be left in the precipitate when using an aluminium chloride starting salt. An additional method of preserving the pseudoboehmite state is to effect precipitation and washing at 4-22 DEG  C.  The particles produced may be impregnated with a solution of a nickel compound, e.g. nickel nitrate, to produce a catalyst, containing, e.g., about 20 or 10% by weight of nickel, and suitable for use in a fluidized bed. Spray drying temperatures used are 538 DEG  C. for ingoing air and 177 DEG C. for discharged air.  In examples the catalyst is dried and calcined at 927 DEG  C. and 843 DEG  C.ALSO:An attrition resistant alumina catalyst support which may be impregnated with a nickel salt to give a nickel catalyst is produced by precipitating amorphous alumina from a solution of an acidic salt of aluminium (e.g. by adding ammonium hydroxide to aluminium chloride or nitrate), separating the precipitate, suspending the alumina in an aqueous medium to which no acid has been added, thereafter, while maintaining the alumina in a form having crystallite sizes not exceeding those of the "pseudoboehmite" state, spray drying the suspension into small particles, subsequently calcining and recovering the particles. The "pseudoboehmite" state is defined as a variant hydrate of alumina, intermediate between amorphous alumina and boehmite, and having crystallite sizes of 25-30  ngstroms.  In examples the alumina particles are impregnated with nickel nitrate solution, dried and calcined to give a catalyst suitable for use in a fluidised bed. Amounts of nickel specified are 20 per cent., and 10 per cent. by weight of the total catalyst composition. Calcination temperatives given are 927 DEG  and 843 DEG C.
Patent GB-1315326-A (GB)
Title: Articulated loader vehicle
IPC: E02F3/34
Filed: 1970-11-16
Abstract: 1315326 Shovelling machines CATERPILLAR TRACTOR CO 16 Nov 1970 [26 Jan 1970] 54339/70 Heading E1F An articulated loader vehicle has a bucket 18 pivotally supported on one articulated section 14 of the vehicle by a pair of lift arms 19 and an engine 24 supported on a frame assembly on its other articulated section on which an implement, preferably a bucket 12, is also pivotally supported closely adjacent to the engine by means of a mounting assembly comprising a pair of brackets 27, lift arms 33, tilt motors 36, and a lift motor 41, having a piston rod 43 pivotally coupled to the vehicle and a cylinder connected by trunnions 44 to a cross member 46 between the arms.
Patent GB-1219595-A (GB)
Title: Flexible drinking tube
Inventor: HARP HARRY JOSEPH
IPC: A47G21/18
Filed: 1968-11-01
Abstract: 1,219,595. Drinking straws. UNION CARBIDE CORP. Nov. 1,1968. No. 51790/68. Heading C6E. A drinking tube of thermoplastic material (specified) has a flexible zone 16, Fig.4, composed of circumferential grooves with short and long sides 20 and 22, respectively, and the tube is stored in a contracted condition with the grooves making reentrant and overlapping folds Fig. 5 (not shown). The grooves may be produced by mounting the tube on an appropriately shaped mandrel and rolling the tube and mandrel upon a complementary plate.
Patent GB-1350645-A (GB)
Title: Phenylacetic acid derivatives a method for their preparation and the applications thereof
IPC: C07C49/76
Filed: 1971-11-09
Abstract: 1350645 Trans - 4 - (2<SP>1</SP> - methylcyclohexyl) phenyl alkanoic acids and derivatives LABORATOIRES JACQUES LOGEAIS 9 Nov 1971 [24 Nov 1970] 51912/71 Heading C2C [Also in Division C5] Novel compounds of Formula I where R = H or CH 3  and salts and alkyl esters thereof are prepared as indicated, together with preparation of intermediates, in the reaction sequence shown in Fig. 2. wherein X is halogen or tosyl, Y is halogen and 2 is iodine. Pharmaceutical compositions in conventional forms for oral, rectal and parenteral administration having anti-inflammatory activity comprise a compound of Formula I above or a salt thereof and a carrier or diluent.
Patent GB-1388455-A (GB)
Title: Drag chain for an underfloor conveyor plant
IPC: B61B10/04
Filed: 1972-11-17
Abstract: 1388455 Chains R STAHL AUFZUGE GmbH 17 Nov 1972 [30 Nov 1971] 52018/72 Heading F2Q In a conveyer drag chain comprising a plurality of pivotally connected single plate 8 and double plate 1 links, the centre portions 4 of the plates 1 are bowed inwardly so that the distance between them is less than the thickness of the single plates 8. Preferably this distance is also less than the width of a coupling pin 7 extending from a vehicle to be conveyed by the chain. In a modification, the longitudinal edges of the plates 1 are flanged. In a further modification, only a longitudinal edge portion of each side plate 1 is bowed inwardly.
Patent GB-1093250-A (GB)
Title: Improvements in toys representing living beings, and in particular in dolls
Inventor: CLAUDE REFABERT
IPC: A63H3/31
Filed: 1964-12-22
Abstract: 1,093,250. Dolls. ESTABLISSEMENTS CLO DREY POLYFLEX. Dec. 22, 1964 [Dec. 23, 1963; May 26, 1964], No. 52130/64. Heading A6S. A doll is caused to emit sounds when a photoelectric cell 1 thereon is irradiated by visible or infra-red rays. The cell when sufficiently irradiated and when switches 8 and 9 (Fig. 2) are closed causes transistor 5 to be conductive and thus actuate an electro-magnet 7 to close a switch in the circuit of motor 2. The switch-closing electro-magnet may be activated by alternative circuits in which the transistor is omitted (Figs. 7 and 8 not shown) or in which thermistors are additionally provided (Fig. 6, not shown). When the motor is energised it rotates a crank 14 which causes bellows 10 to vibrate reeds 11. The switches 8 and 9 may be located respectively under the dolls hair and inside its mouth and the latter may be resiliently held closed until opened, e.g. by the nipple of a feeding bottle. In another arrangement, a normally closed switch is associated with a pair of eyes 28 (Fig. 9) connected by a transverse bar 29 rigidly connected to a counterweight 30. When the doll is laid down the bar 29 engages an arm 36 of the switch contact 35 and moves the contact away from one of the fixed contacts (33) (Fig. 10 not shown). Alternatively a nipple of a feeding bottle inserted into the doll's mouth engages an arm 37 of the contact 35 to open the switch. The sound producing means may comprise one bellows with two vibrating reeds or a pair of counterweights each carrying a vibrating reed (Fig. 4 not shown).
Patent GB-1153774-A (GB)
Title: Method for producing Phosphor Patterns on Cathode Ray Tube Surfaces
IPC: H01J9/227
Filed: 1966-11-24
Abstract: 1,153,774. Luminescent screens. NATIONAL VIDEO CORP. 24 Nov., 1966 [6 Dec., 1965], No. 52594/66. Heading H1D. A method for producing a phosphor pattern on a cathode-ray tube surface (e.g. a colour C.R. tube surface) in which one or more phosphor materials are deposited on predetermined areas of such surface in admixture with, or applied to, the differentially hardened portions of a photographic resist, and differentially non- hardened portions of said resist are thereafter removed, wherein the resist is formed by (a) treating said surface with an adhesive; (b) adhering a preformed plastic film to the thus treated surface; (c) rendering said film photosensitive; (d) exposing the film (to actinic radiation or electrons for instance) to effect differential hardening of said predetermined areas and (e) removing the differentially non- hardened areas of the plastic film. The phosphor may be admixed with the film during its manufacture or applied to the film surface before or after exposure of same. The plastic film per se may be photosensitive (e.g. photopolymerizable), or a photosensitizer may be added during the film manufacture (e.g. ammonium or alkali metal dichromates, positive or negative-acting diazonium salt sensitizers, or dye sensitizers) or added to the tube or film surfaces. Film materials instanced are polyvinyl alcohol, polyvinyl acetate, albumen, photographic gelatin, polyvinyl pyrrolidone, fish glue, and copolymers of methylvinyl ether and maleic anhydride.
Patent GB-1173894-A (GB)
Title: Improvements in Power Driven Syringes
Inventor: JEWETT WARREN READ
IPC: A61M5/145
Filed: 1966-12-02
Abstract: 1,173,894. Syringes. W. R. JEWETT. 2 Dec., 1966 [3 Dec., 1965], No. 54142/66. Heading A5R. [Also in Division F1] A power driven syringe 13 has a base-plate 11 which may be to a patient by a strap 12 and comprises a plunger 17 driven through gearing 23, 21, 19 by an electric motor 25 mounted on the baseplate together with a battery 32. The motor 25 is pivotally mounted so that the gears 23, 21 may be disengaged to enable the plunger to be returned by hand. A micro stop switch 36 is included in the motor circuit.
Patent GB-1390630-A (GB)
Title: Mowing apparatus for the maintenance of grassed surfaces
IPC: G05G9/047
Filed: 1972-12-24
Abstract: 1390630 Mowing machines MULAG FAHRZEUGWERK HEINZ WOSSNER KG 24 Nov 1972 [3 Dec 1971] 54419/72 Heading A1F A machine for mowing grass and collecting grass cuttings from roadside verges has an impact cutting rotor 1 in a housing 2 universally mounted on a movable arm of a vehicle, the housing being connected by a hose 13 to a suction fan 18 which draws material from the housing 2 and discharges it through an adjustable outlet 19. A baffle 26 may be provided for directing the matter into a container on a further vehicle. The housing 2 is supported on the ground by wheels 9 and a roller 10 and is pivotally connected by a bearing 3 to a connecting member 24. A hydraulic motor 4 pivots the housing, to adapt it to the slope of the verge. The connecting member 24 is rotatably connected by a bearing 8 to the free end of the hose 13 and can be manually rotated through 180‹ so that the machine can operate with the vehicle driven in forward or reverse. The free end of the hose is supported by a fork 12 pivoted to a bar 11 which is pivoted to a carriage 25 rotatably mounted on the vehicle so that the hose can be swung to either side of the vehicle. Hydraulic cylinders 16, 14 adjust the bar 11 and fork 12. The cutting rotor 1 is driven by a hydraulic motor 5.
Patent GB-1064222-A (GB)
Title: Improvements relating to gas-cushion vehicles
Inventor: COCKERELL CHRISTOPHER SYDNEY
IPC: B60V1/00
Filed: 1962-11-13
Abstract: 1,064,222. Air cushion vehicles. HOVERCRAFT DEVELOPMENT Ltd. Nov. 8, 1963 [Nov. 13, 1962], No. 54506/65. Divided out of 1,064,221. Heading B7K. An air cushion vehicle has cushion-enclosing flexible walls each comprising an inner, continuous member 17 and an outer member comprising a plurality of spaced guide vanes 18a, 18b, 18c, air being discharged through the duct formed therebetween to form a gaseous curtain. Downward movement of the member 17 is restrained in normal operation by ties 9 and when the cushion height is reduced (as in Fig. 4, not shown) air escapes from the gaps between the guide vanes to form a supplementary cushion below member 17 and prevent it from abrading on surface 16.
Patent GB-1127619-A (GB)
Title: Storerooms for storing fruit, foods or the like, in a controlled atmosphere
IPC: F25D23/06
Filed: 1965-12-23
Abstract: 1,127,619. Food storeroom. SULZER BROS. Ltd. 23 Dec., 1965 [8 Feb., 1965], No. 54676/65. Heading A2D. A storeroom for foodstuffs comprises a conventional, e.g. brick built, main room within which is sited an inner room at least some of the walls of which are of substantially gas impermeable, e.g. plastics, material and which inner room has atmosphere control means. In one embodiment, Fig. 1, the inner room forms a tent with a flexible plastics ceiling 17, side walls 16 and floor sheet 18 hermetically welded together, the tent being non-yieldingly suspended at 19 and yieldingly suspended at 20 from the ceiling of the main room. The main room is thermally insulated and is provided with air cooling means 27 and a CO 2  absorption device 24 which device controls the atmosphere within the tent. In another embodiment, Fig. 6 (not shown), only one of the walls is of flexible material and is rollable upwards to provide access to the store. The air cooling means may be installed within the inner room. The size and flexibility of the flexible sheet or sheets is such as to accommodate any normal variations in the outside atmospheric pressure after the inner room has been sealed off.