baber/WOPTO huggingface dataset:
Patent GB-1410642-A (GB)
Title: Auto emissions catalyst
IPC: B01J23/656
Filed: 1972-09-27
Abstract: 1410642 Pollutant removal AIR PRODUCTS & CHEMICALS Inc 27 Sept 1972 [1 Oct 1971] 44683/72 Heading C1A [Also in Division B1] Exhaust gas from internal combustion engines are treated to remove pollutants by contact with a substantially copper-free catalyst comprising a porous alumina 0À01-0À2 wt. per cent palladium and, calculated as MnO and Cr 2 O 3  respectively, 5-18 wt. per cent of a manganese oxide and 2-8 wt. per cent of a chromium oxide, the wt. ratio MnO/Cr 2 O 3  being greater than 2 and less than 3À5 and the total MnO + Cr 2 O 3  being 8-24 wt. per cent. Extra air may be added to the gas before treatment. Gases oxidized are stated to be CO and hydrocarbons.
Patent GB-1357076-A (GB)
Title: Ear protector
IPC: A61F11/14
Filed: 1972-09-27
Abstract: 1357076 Ear protectors EXEL OY 27 Sept 1972 [27 Sept 1971] 44688/72 Heading A3V An ear protector comprises a hemispherical cope 1 and a peripheral ring of a packing 3 of cushioning material which is fastened to the cope by means of a skirt 4 attached thereto, the skirt fitting into a peripheral groove 2 in the cope, the depth of the groove being at least twice its width. A continuous loap of inelastic thread 5 is provided to prevent the skirt from slipping out of the groove.
Patent GB-1422638-A (GB)
Title: Personal urinals for female use
IPC: A61G9/00
Filed: 1972-09-28
Abstract: 1422638 Personal urinals DISABLED LIVING FOUNDATION and P T LOWTHIAN 3 Dec 1973 [28 Sept 1972] 44726/72 Heading A5R [Also in Division A4] A personal urinal for continuous or intermittent female use comprises a collecting head 20 and a flexible container bag 30. The collecting head 20 tapers from the front end towards the rear end and includes a support platform 23 surrounding an opening 22 which constitutes the mouth of the urinal. The rearward part of the platform 23 is raised to provide a hollow arched intra-labial extension 21, said opening 22 extending into the intralabial extension. The forward part of the platform 23 is of reduced thickness and is arched downwards to form a bridge 24. This is to provide for transverse flexibility, and also for the escape of air from the collecting bag through the opening 25, formed between the bridge 24 and the body, at a position remote from the urine stream. Two wing shaped projections 26 extend downwards from the sides of the collecting head 20, and contain a groove 28 adjacent to the edge of the platform 23. The wings are used to hold the head during insertion of the intra-labial part, and they also provide support for the head when in position. A projecting tail piece 27 may be included to allow the appliance to rest conveniently on a level surface. The tail piece is flexible enough to bend inwardly when the user is seated, Figure 8 (not shown). A suitable material for the collecting head 20 is ethylene vinyl acetate copolymer (EVA), which has the necessary elasticity and good fatigue properties. It is also transparent, and it can be sterilised by ethylene oxide. The flexible container bag 30 is made from a self-lubricating plastics material such as polyethylene or EVA, and has an elasticated open end 31 which is passed through the opening 22 from below and rests in the groove 28. Where appropriate the bottom of the bag 30 may be provided with an outlet tube (33), Figures 10 and 11 (not shown). When the appliance is to be worn continuously a belt and harness may be provided. Figure 11 (not shown). In other embodiments, the container bag may be moulded as an integral part of the collecting head, or the container may take the form of a semi-rigid box of rectangular cross section, Figure 13 (not shown). A cushioning pad moulded to follow the contours of the collecting head may be provided.
Patent GB-1076714-A (GB)
Title: A circuit arrangement for pulse excitation of power transistors
Inventor: DVORAK VACLAV
IPC: H03K17/60
Filed: 1965-10-22
Abstract: 1,076,714. Switching circuits. VYZKUMNY USTAV MATEMATICKYCH STROJU. Oct. 22, 1965 [Oct. 26, 1964], No. 44795/65. Heading H3T. A power transistor T3 (Fig. 3), is turned on by a pulse which makes T1 conductive and passes base current to T3 via diode D2, T2 being held off. At the end of the pulse, the charge stored in the base of T3 cuts off D2 and leaks away through T2 until the base voltage of T3 falls to the Zener level of diode ZD as diode D1 is now conductive. The supply - E1 can be greater than the permissible reverse base-emitter voltage of T3 if the base voltage of T3 is not allowed to reach a steady value. The input pulses can be applied via a transformer between base and emitter of T1.
Patent GB-1492125-A (GB)
Title: Heating device for the treatment of threads or yarns
IPC: D02J13/00
Filed: 1975-10-30
Abstract: 1492125 Polymeric sizing of threads or yarns CHAMPGONTIER SA 30 Oct 1975 44812/75 Heading D1L Yarns or threads 9, sized with a polymer at 32, are heated by passage through a pair of vertical, heated tubes 1, 2 connected at their upper ends by an air-tight chamber 4 containing a return pulley 11, the upper end of tube 1 being connected to vacuum for inducing an air flow upwards through the tube. The tubes are preferably arranged in pairs [Fig. 3 (not shown)] and electrically heated from a common transformer 12, the degree of heating being controlled by the lengthening of the tubes due to thermal expansion, the extent of which is measured by proximity detectors 16 connected via relay 18 to the source 20. Springs 13 are provided to assist in the lengthening of the tubes. The thread or yarn is introduced into the tubes by means of a suction venturi at the bottom of tube 2. The thread or yarn may be stretched in tube 2 by varying the speed of delivery and take-up rollers 19, 20.
Patent GB-1073127-A (GB)
Title: Carburettors
Inventor: SOULE GEORGE ERNEST HENRY
IPC: F02M1/00
Filed: 1965-10-23
Abstract: 1,073,127. Carburetter arrangements. FORD MOTOR CO. Ltd. Oct. 23, 1965, No. 44980/65. Heading B7H. [Also in Division F1] The vapour vent pipe from the float chamber of an I.C. engine carburetter is connected by means of a hose to one of the wheel arches of a motor vehicle. The vent pipe contains a plastics ball valve to prevent the escape of liquid fuel.
Patent GB-1127830-A (GB)
Title: Apparatus for intaglio electrostatic printing
IPC: B41M1/42
Filed: 1966-10-07
Abstract: 1,127,830. Printing processes. CONTINENTAL CAN CO. Inc. 7 Oct., 1966 [24 Oct., 1965], No. 45036/66. Heading B6C. [Also in Division G2] An apparatus for electrostatic printing comprises a drum 10 having recessed image areas 18 which receive toner 22 supplied by a powder cloud generator 23. Toner from the image area is transferred electrostatically to a substrate 42. A corona device 26 charges the toner 22 which forms a coating on the image 18 and non-image 16 areas. A doctor blade 30 removes substantially all the toner from the non-image areas, the remainder being removed by rollers 32. A corona device 38 recharges the toner in the image areas before transfer to the; substrate oppositely charged by a corona device 60. In a modification, non- image area (16), Fig. 2 (not shown), has a dielectric coating 70 charged negatively by a corona device 72, such that negatively charged toner is repelled from the non-image area.
Patent GB-971994-A (GB)
Title: Catalytic treatment of automobile exhaust gases
IPC: B01D53/94
Filed: 1962-11-29
Abstract: In a process for oxidizing pollutants in automobile exhaust gases which comprises contacting the gases mixed with an oxygen-containing gas at a temperature at which the pollutants are oxidized there is used a catalyst consisting essentially of an activated mixture of (1) a support of Al2O3, SiO2-Al2O3, SiO2-MgO or an acid-treated clay having a surface area of at least 100 sq.m./gm. and containing Pt and Pd in a weight ratio of from 0,125 to 2,0 and (2) a finely-divided, porous Al2O3, SiO2-Al2O3, acid-treated clay, SiO2-MgO, Al2O3-B2O3, Al2O3-TiO2, or Al2O3-ZrO2 diluent in an amount sufficient to provide a dilution ratio from 5-250; the mixture containing from 0,005-0,2 weight per cent each of Pt and Pd.  The support may have a particle size of 10-100 microns.  Examples are given.  Specification 952,150 and U.S.A. Specification 2,886,512 are referred to.
Patent GB-955515-A (GB)
Title: Additive combination for synthetic esters
Filed: 1961-12-19
Abstract: A lubricating oil composition (A) a major amount of a synthetic ester lubricating oil, (B) from 0.2 to 3.5 wt. per cent of a phenothiazine, (C) from 0.001 to 0.5 wt. per cent of a phenol of the general formula <FORM:0955515/C3/1> where R and RI are hydrogen or C1-5 alkyl groups and RII is -CH3, -OCH3 or a radical of formula <FORM:0955515/C3/2> where RIII is hydrogen or a C1-5 alkyl group (certain provisos being attached to the various R's), and (D) from 0.03 to 1.0 wt. per cent of an amine of the general formula <FORM:0955515/C3/3> where RIV is a C1-15 hydrocarbon radical which may be hydroxy-substituted, RV and RVI are hydrogen or C1-8 alkyl groups and "n" is from 0 to 12.  The ester lubricating oil may be a diester derived from an alcohol and a dicarboxylic acid, or from a glycol or diglycol and a monocarboxylic acid; a complex ester; or a mixture of diester and complex ester. Many ester oils are exemplified, and many examples of additives (B), (C) and (D) are given.  The oils may also contain one or more of the following optional additives:-tricresyl phosphate, sebacic acid, polymethylene and polymethyl phenyl silicones, copolymers of methacrylates and N-vinyl pyrrolidone, and copolymers of vinyl acetate/alkyl fumarate/maleic anhydride. Specification 951,261 is referred to.
Patent GB-980385-A (GB)
Title: Reinforcing filler for rubber
IPC: C08K3/26
Filed: 1961-12-19
Abstract: Calcium carbonate having a necklace-like structure in which particles of 0.01 m  width and 0.02-0.03 m  length are connected together, and which is mixed with a second metal carbonate, is made by introducing gas containing 15-35% by volume of carbon dioxide at a flow rate of above 150 1./min./kg. Ca(OH)2 into a calcium hydroxide suspension of concentration less than 15% and at a temperature less than 30 DEG  C. to give a viscous colloidal suspension, and continuing inflow of carbon dioxide until a highest viscosity is reached, at which point the suspension is reacted with 0.02-0.08 mols per mol of calcium hydroxide of a second metal salt convertible to hydroxide on hydrolysis, the second salt being introduced with gas containing 15-35% by volume of carbon dioxide at a flow rate of more than 150 1./min./kg. Ca(OH)2.  Inflow of gas is continued until the viscosity of the suspension begins to fall, at which point, gas containing 15-35% by volume of carbon dioxide is introduced at a 40-80 1./min./kg. Ca(OH)2 until the calcium and second metal hydroxides are completely converted to carbonates.  In an example, the second metal salt is zinc chloride.  The mixed carbonates are used as rubber reinforcing filler.
Patent GB-1187734-A (GB)
Title: Materials Handling Device
Inventor: WILLIAMSON WILLIAM APLIN
IPC: B66F9/18
Filed: 1968-09-25
Abstract: 1,187,734. Lift trucks. CLARK EQUIPMENT CO. 25 Sept., 1968 [3 Oct., 1967], No. 45643. Heading B8H. [Also in Divisions B7 and F2] A valve comprises a plurality of circumferentially arranged outlet ports 94, 96, 98, 100, each adapted for connection to one of the corner pads of a load-handling pallet and each fed by radially spaced passages of different diameter (only the passages 120, 128 being shown). A lever 136, which is universally mounted, moves a valve plate 134 over a flat surface 132 into which the passages open to control the flow of fluid from an inlet 92 to the outlets, in any position of the valve plate some of the passages being blocked. The pallet which is connected to the forks of a fork-lift truck has six pads (38), (40), (42), (44), (46), (48), Fig. 2 (not shown), each formed by an apertured diaphragm (60), Fig. 3 (not shown), peripherally and centrally attached to the lower face of a plate (50) secured to the pallet frame (36). A conduit is connected to the plate of each pad and the conduits from the four corner pads are connected via the valve to the fluid pressure supply while the other two are connected directly to the supply which is connected to the truck via a hose (30) stored on a reel (28) on the rear of the truck. The valve is mounted on a plate (73) fixed to the top of an upwardly and rearwardly extending support arm (72) pivotally connected to the pallet frame (36).
Patent GB-1454669-A (GB)
Title: Camera mechanism
IPC: G03B9/14
Filed: 1974-10-22
Abstract: 1454669 Camera shutters; diaphragms BALDA-WERKE PHOTOGRAPHISCHE GERATE UND KUNSTSTOFF GmbH & CO KG 22 Oct 1974 [25 Feb 1974] 45674/74 Headings G2A and G2J A camera shutter comprises two apertured blades 1, 2 pivoted to opposite ends of an actuating lever 3 and engaging guideways 11 and 12 at points 7, 8, 9 and 10. Preferably guideways 11 and 12 are formed as channels in the lens housing. Lever 3 is pivoted to the shutter housing at 4 and is reciprocated by a mechanism Fig. 7,(not shown) to open and re-close the blades. The pivot angle of lever 3 may be adjustable to provide a shutter -diaphragm. The blades may alternatively form a diaphragm.
Patent GB-1202382-A (GB)
Title: Apparatus for reproducing cassetted magnetic tapes
IPC: G11B15/00
Filed: 1967-10-09
Abstract: 1,202,382. Cassette players. STAAR DEVELOPMENT CO. S.A. 9 Oct., 1967 [7 Oct., 1966], No. 46069/67. Heading G5R. A magnetic tape cassette player has a detachable unit 25 having press buttons or keys for selecting one of a plurality of recordings on a cassetted tape. The unit 25 is located by pins 26 and holes 27 and electrically connected at 28 directly or via a cable 29 allowing remote control.
Patent GB-1496834-A (GB)
Title: Portable firearms
IPC: F41C23/14
Filed: 1975-11-07
Abstract: 1496834 Portable firearm J L A BERBEGAL 7 Nov 1975 [19 Nov 1974] 46247/75 Heading F3C In a portable firearm the stock comprises a forward part 1 and a rearward part 2 which are spaced by a removable insert comprising elements 3, 4 and 5 and secured by a screw 6. To assemble the stock, the element 3 is detachably secured to the part 1, the element 4 is detachably secured to the part 2, the element 5, which is wedge-shaped, is inserted between the elements 3, 4; the spacer elements cooperate with one another to prevent relative rotation thereof. The elements 3, 4 and 5 can be replaced by members of different cross-sectional shape and a number of intermediate elements 5 may be used.
Patent GB-1167557-A (GB)
Title: Improvements in or relating to Plate-Type Heat Exchangers
Inventor: MEISTER GERHARD
IPC: F25J3/00
Filed: 1967-10-11
Abstract: 1,167,557. Plate heat-exchangers. LINDE A.G. 11 Oct., 1967 [12 Oct., 1966], No. 46351/67. Heading F4S. In a plate-type heat exchanger comprising spaced-apart parallel plates 1 each formed by an extrusion process with integral parallel T-shaped fins 5 on each side of the plate, the fins 5 from each pair of adjacent plates project into a common fluid flow passage and contact one another to prevent deformation and movement of the plates. The fins may alternatively be arrow-shaped (Figs. 2 and 5), Y-shaped (Fig. 3) or L-shaped (Fig. 4). As shown, each of the fins on one side of the plate is arranged centrally between two fins on the other side, but alternatively the fins may be arranged opposite to each other (Fig. 4). Each plate is formed with thickened side parts 11 equal to the distance between adjacent plates and along which the plates are sealed by welding at 12. Advantageously the fins are provided with a series of grooves (Figs. 9, 10) extending over the surface of the plates in the region of the inlet and outlet ends of the exchanger to facilitate even distribution and collection of the heat exchange media to or from the spaces between adjacent plates, said grooves extending diagonally to the longitudinal direction of the fins.
Patent GB-1117415-A (GB)
Title: Improved package sealing apparatus
Inventor: PIETSCH PETER
IPC: B65B51/26
Filed: 1965-11-03
Abstract: 1,117,415. Wrapping articles in tubes. TABAK - UND INDUSTRIEMASCHINEN DRESDEN VEB. 3 Nov., 1965, No. 46522/65. Heading B8C. [Also in Division F2] Overlapping portions 8, 10 of a web tubed inside a mandrel 3, 4 are welded together by a tool 7 extending into aligned apertures 12, 13 in overlapping portions of the mandrel, and co-operating with a support 11 formed by one edge of the mandrel. The support 11 may carry an anvil 14 of plastics material formed with a notch 18. The leading end of the mandrel may be formed with inclined surfaces. Articles are fed into the tubing, as it is formed, by an endless conveyer forming an extension of the mandrel. Contact of the articles with the welding support 11 is prevented by a spring blade 19. The tubing may subsequently be welded and parted between the articles. The mandrel may be mounted horizontally or vertically.
Patent GB-984469-A (GB)
Title: Plastic laminates
IPC: B29C70/00
Filed: 1962-12-10
Abstract: 984,469. Laminates. TOCOPAL KUNSTSTOFF - FABRIK G.m.b.H. Dec. 10, 1962 [Dec. 11, 1961; Dec. 16, 1961], No. 46591/62. Heading B5N. A laminate comprises a layer of vulcanized fibre, a layer or coating of an unsaturated polyester resin containing a copolymerizable monomer, and an intermediate layer of absorbent material impregnated with a precondensate of a condensation resin, e.g. a condensation product of formaldehyde with phenol, or urea, thiourea, melamine or mixtures thereof. The polyester resin layer may be formed by pouring a pre-polymer composition on to a metal plate and partially polymerizing, the other layers then being applied to this layer, the whole being cured by heat and pressure, and the metal plate removed. Alternatively, the polyester layer may comprise a sheet of decorated or other paper, wood veneer, felted or woven fabric, or fabric of glass fibres, cellulosic fibres, synthetic resin fibres or mixtures thereof, impregnated with the resin. The polyester layer may be bonded to the condensation resinimpregnated layer by a coating or impregnated layer of unsaturated polyester resin composition. The laminates may be cemented to substrates of wood, wood fibre, wood chips or plastic material, e.g. by an adhesive such as polyvinyl acetate or polymethacrylate, may be made double-sided by repeating the two resincontaining layers on the underside of the vulcanized fibre layer, or may be protected on their undersides by an additional layer of condensation resin-impregnated paper. A stack of laminates may be pressed simultaneously with separator layers, e.g. of parchment, between them. In addition to general references to unsaturated polyesters formed from esterification of diols such as propylene glycol with unsaturated acids such as maleic or fumaric acid or their anhydrides, with or without saturated acids such as succinic, adipic, sebacic, and ortho- or tere-phthalic acids, and with vinyl monomersas copolymerizable materials, the following resin composition is referred to. A mixture of 361 g. of hexachloro-endomethylene-tetrahydrophthalic acid anhydride, 98 g. of maleic anhydride, 233À2 g. of diethylene glycol and 0À01 hydroquinone is reacted in nitrogen and 60 parts of the product are mixed with 20 parts of vinyl-toluene, 20 parts of dichloro-styrene, 10 parts of antimony trioxide and 2 parts of chloroparaffin; 4% of a 50% benzoyl peroxide paste is added as catalyst. Laminates made with this composition have fire-retardent properties and may be used as components of boats and planes. To the above composition, and others specified, may be added silica or silicic acid added as thickeners, clay, woodflour, slate flour, limestone, shale, pumice or glass powders, asbestos or glass fibres as fillers, and inorganic or organic materials as pigments.
Patent GB-1411291-A (GB)
Title: Friction wheel measuring devices
IPC: G01B3/12
Filed: 1972-10-11
Abstract: 1411291 Measuring wheel instruments PRIMUS Mfg Inc 11 Oct 1972 [12 Oct 1971 (2)] 46833/72 Heading G1M [Also in Division B3] A known friction wheel measuring instrument, Figs. A and C, may be adjusted to reduce errors by tilting the instrument through angles # or 8 relative to the X and Y co-ordinates, and it has been found that error correction can be further reduced by providing the surface of the friction wheel with randomly spaced sharp steeply sloped ridges by grinding or otherwise scratching the wheel periphery transversely to its circumference, instead of circumferentially as before, so that the surface has a low co-efficient of friction in the vertical or Z direction and a high co-efficient in the X direction. The ridges should be produced so that their length is more than three times their average spacing, and the angle of the slope of each ridge adjacent the crest with a tangent to the wheel at the crest should be greater than the angle of friction between the wheel and a surface to be measured. The periphery 23, Fig. 1, provided with scratches 26 has an arcuate profile with a portion 24 of greater circumference so that tilting the wheel can vary the accuracy of measurement. The minimum average ridge spacing is between 10<SP>-6</SP> and 10<SP>-2</SP> inches.
Patent GB-1273746-A (GB)
Title: Unsaturated photochromic monomers and polymers prepared therefrom
IPC: C09K9/02
Filed: 1968-10-03
Abstract: 1,273,746. Indolino-spirobenzopyrans. AGFAGEVAERT. 10 Sept., 1969 [3 Oct., 1968], No. 46948/68. Heading C2C. [Also in Divisions C3, C4 and G2] Novel indolino-spirobenzopyrans of the formula wherein R represents C 1-11  alkylene, phenylene or toluylene, Y and Y<SP>11</SP> represent hydrogen, chlorine, bromine or a cyano, acetyl, carboxyl, hydroxyl, nitro, or methoxy group, Y<SP>1</SP> represents hydrogen, chlorine, bromine or an acetyl, carboxyl or nitro group, Y<SP>111</SP> represents hydrogen, chlorine, bromine or a nitro group and one of the X's is acryloyloxy or methacryloyloxy and the other is hydrogen, are prepared by reacting the corresponding compounds in which one of the X's is hydroxyl with acryloyl or methacryloyl chloride, preferably in the presence of an acidacceptor. The starting hydroxy-indolino-spiropyrans are obtained by condensing an appropriate hydroxy 2-methylene-3,3-dimethylindoline with an optionally substituted salicylaldehyde. 4-Acrylamidophenol-(p-azidobenzoic acid ester) is obtained by reacting p-acrylamidophenol and p-azidobenzoyl chloride. The unsaturated spiro compounds are photochromic and form photochromic addition polymers which can be used in photographic materials (see Divisions C3, C4 and G2).
Patent GB-1027214-A (GB)
Title: An abrasive belt machine
IPC: B24B21/14
Filed: 1963-07-22
Abstract: 1,027,214. Grinding. HAMMOND MACHINERY BUILDERS Inc. July 22, 1963 [Aug. 27, 1962], No. 47047/64. Divided out of 1,027,213. Heading B3D. The subject matter of the present Specification is included in the description of the abrasive belt machine of Specification 1,027,213 but the claims are directed to an abrasive belt machine having a pedestal extending upwardly from a base, a substantially horizontally extending beam mounted on the pedestal, a contact roller mounted at one end of the beam, a driven roller mounted at the other end of the beam, means supporting an idler roller above the driven roller, and piston and cylinder means for moving the idler roller so as to tension the abrasive belt.
Patent GB-1075158-A (GB)
Title: Preparation of arsenic salts of dialkyl dithiophosphoric acids
IPC: C07F9/68
Filed: 1963-11-29
Abstract: A lubricating oil additive comprises an arsenic dialkyl dithiophosphate, wherein the alkyl group is preferably a C1 to C20 straightchain alkyl group or a C1 to C30 branched-chain alkyl group (see Division C2).ALSO:Arsenic dialkyl dithiophosphates are obtained by reacting arsenic trioxide with a dialkyldithiophosphoric acid, or with a mixture of different dialkyl dithiophosphoric acids.  The alkyl groups are preferably straight-chain C1-C20 alkyl groups or branched-chain C1-C30 alkyl groups.  The reaction may be carried out by heating the two reactants at a temperature of 45-95 DEG  C.  An example is given for the preparation of arsenic di-(4-methylpentyl-2) dithiophosphate. The products may be used as lubricating oil additives.