baber/WOPTO huggingface dataset:
Patent GB-1515074-A (GB)
Title: Brake fluid reservoir
IPC: G01F23/64
Filed: 1976-11-22
Abstract: 1515074 Reservoirs; fluid level sensing WAGNER ELECTRIC CORP 22 Nov 1976 [4 Dec 1975] 48563/76 Heading F2F A brake fluid reservoir for a master cylinder comprises a main body portion 26a containing brake fluid 40a, a cap 42a and a resilient diaphragm 52a between the cap 42a and portion 26a which diaphragm 52a separates a region containing brake fluid 40a and air from a region containing only air when there is no air pressure differential across the diaphragm-but the 52a includes an elongated slit 96a which allowspassage of air into said region containing brake fluid 40a when the pressure in that region is lower by a preselected amount than the pressure in the air only region-this will occur upon a lowering of fluid in the reservoir beyond the extension capabilities of the diaphragm 52a (Fig. 7, not shown) and prevents undesired vacuum conditions in the region containing brake fluid. The embodiment of Figs. 2-5 also incorporates a fluid level sensor 56 comprising a float 82 with magnetic elements 66 to actuate a switching element 76. A coil spring 90 acts as a cage to eliminate interference with float 82 by diaphragm 52.
Patent GB-1091869-A (GB)
Title: Photoconductive targets
IPC: H01J29/45
Filed: 1964-12-02
Abstract: 1,091,869. Photoconductive devices; C.R.T. targets. MATSUSHITA ELECTRONICS CORPORATION. Dec. 2, 1964 [Dec. 14, 1963], No. 49062/64. Headings H1D and H1K. A photoconductive target for a camera tube comprises a layer of lead monoxide on a conductive substratum, covered by a chalcogen film comprising sulphur, selenium or tellurium with an upper layer of evaporated silver. In one embodiment a 20Á layer 3 of lead monoxide is deposited on a glass substrate 2. bearing a conductive coating 1 and a quantity of silver sulphide is heated above its decomposition temperature (950 C.) so that a sulphur film 4 containing some silver and then a silver film 5 containing some sulphur are deposited on the lead monoxide film. The film 4 could consist alternatively of selenium or tellurium or of mixtures of these substances. The silver film is thin with high electrical resistance between the particles.
Patent GB-1194908-A (GB)
Title: Improvements in or relating to Railway Power Bogies
Inventor: LICH RICHARD LOUIS
IPC: B61F5/20
Filed: 1967-10-31
Abstract: 1,194,908. Railway vehicle undercarriages. GENERAL STEEL INDUSTRIES Inc. 31 Oct., 1967, No. 49322/67. Heading B7L. A railway power bogie comprises three axles 1, 2, 3, Fig. 1, each driven by a motor M, a rigid frame comprised of side members 9 and transoms 15, 17 between adjacent axles, transversely spaced upwardly facing horizontal bearing surfaces 27 carried directly by the frame at the junctures of the transoms with the side members, which surfaces are adapted to slidably engage feet 29 on an underframe, and a central longitudinal beam 33 resiliently supported at its ends 35 on the transoms 15, 17 for lateral movement but held against longitudinal movement relative to the transoms, the beam being provided centrally of its length with a cylindrical aperture 43 to receive a depending cylindrical pivot on the underframe. The ends of the beam 33 are bifurcated at 35 and elastomeric pads 37, interleaved with metal plates, are interposed between the bifurcations 35 and central abutments 31 on the transoms. Depending abutments 39 on the beam ends coact with the transoms through chafing plates 41 to prevent longitudinal movement of the beam relative to the transoms.
Patent GB-1091607-A (GB)
Title: Azo compounds
IPC: C08F2/46
Filed: 1964-12-08
Abstract: Compounds of the formula <FORM:1091607/C3/1> wherein R is an alkyl group and X is -OH or -OCOR1, where R1 is an alkyl, cycloalkyl, aryl, aralkyl or alkaryl group, are used as catalysts or initiators for the polymerization of ethylenically unsaturated compounds to give homo- or copolymers. Suitable monomers are olefins, acrylic acids, esters, nitriles and amides; vinyl halides, carboxylates, imides, lactams and aromatics; conjugated dienes, compounds containing two or more isolated ethylenic double bonds and derivatives of maleic and fumaric acids.  Polymerization is usually effected at 150-300 DEG  C. using 0.0001-5% azo compound based on moles of monomer.  Example 3 relates to polymerization of ethylene using azobisbutanol and azobisbutanol diacetate.ALSO:The invention comprises compounds of the formula <FORM:1091607/C2/1> wherein R is an alkyl or cycloalkyl group and X is -OH or -OCOR1 where R1 is an alkyl, cycloalkyl, aryl aralkyl or alkaryl group and the preparation thereof by reacting a nitrile of the formula <FORM:1091607/C2/2> with a primary or secondary alcohol in the presence of an acid catalyst and at a temperature low enough to avoid decomposition of the azodinitrile, e.g. below 50 DEG  C., hydrolysing the resulting azo-dimidoester to the corresponding azo-diester, selectively reducing the azo-diester to the corresponding azo-dialcohol under nonacidic conditions and, where X is -OCOR1, esterifying the dialcohol in the presence of a base at a temperature low enough to avoid decomposition of the azo-dialcohol. Selective hydrogenation of the diimidoester is effected with a hydride of aluminium or boron or a complex thereof, preferably in the presence of an ether solvent and below 60 DEG  C.  Esterification of the azo-dialcohol may be effected using the free acid or the anhydride or acid chloride thereof.  The azo-dialcohols and their esters are used as polymerization catalysts (see Division C3). Examples relate to the preparation of azobisisobutanol and the diacetate thereof.
Patent GB-1076968-A (GB)
Title: Process for the preparation of dry, solid choline salicylate containing compositions
IPC: A61K47/02
Filed: 1965-11-25
Abstract: Pharmaceutical compositions comprise a dry, free-flowing powder prepared by adding MgSo4 or an aqueous solution thereof to an aqueous solution of choline salicylate and evaporating to dryness, preferably under vacuum at below 100 DEG C.  The product may be encapsulated or granulated and formed into tablets by conventional methods.
Patent GB-1124209-A (GB)
Title: Improvements in or relating to devices for feeding sheets of cardboard from a stack to a sheet processing machine
Inventor: LUETZNER FRITZ MANFRED
IPC: B65H3/24
Filed: 1966-11-09
Abstract: 1,124,209. Feeding sheets. F. M. LUTZNER. 9 Nov., 1966, No. 50224/66. Heading B8S. ' Cardboard sheets are fed from a stack to a pair of rollers preceding a sheet processing machine and simultaneously accelerated to the speed of transport of the rollers by a rotating body disposed above or below the stack and which carries on its surface a spiral ridge forming a continuous point of contact with the edge of the bottom or top sheet in the stack remote from the feed rollers. In a preferred embodiment, Fig. 1, a stack 2 of superimposed cardboard sheets 1 is carried on stacking device 3. Two truncated cones 4 rotate beneath stack 3 and are disposed with their generatrices 5 lying approximately on the bottom surface of stack 2. The cones may be mounted with their truncated surfaces 6 facing each other (as shown) or with their base surfaces 7 facing each other. On the peripheral surface of each truncated cone 4 is a spiral ridge 8 having a constant or variable pitch. Rotatable roller 9 carries an axial ridge 91. A pair of feed rollers 10 follow the stacking device 3 and precede a sheetprocessing machine (not shown). On rotation of cones 4 and roller 9, sheet 1<SP>1</SP> is accelerated in the direction of rollers 10 by virtue of the engagement of its rear edge by ridges 8 and 91. After one revolution of cones 4 the sheet reaches the speed of, and is engaged by, rollers 10. A plurality of such pairs of truncated cones may be disposed side by side with their appertaining rollers along the rear edge of the topmost or bottom-most sheet or alternatively a plurality of similarly directed truncated cones but oppositely directed each side of the centre of the width of the stack of sheets with a roller between each two successive truncated cones may be provided. In a second embodiment (Fig. 3) the rotating body is constituted by a disc arranged parallel to the top or bottom surface of the stack and carrying on the side facing the stack a spiral adapted to engage the rear edge of the bottom or top sheet.
Patent GB-1195429-A (GB)
Title: Pressure Sensing, Indicating and/or Control Means
Inventor: ROBINSON DAVID EDWARD
IPC: G05D16/06
Filed: 1967-11-06
Abstract: 1,195,429. Valves. PAPER MACHINE COMPONENTS Inc. 6 Nov., 1967, No. 50376/67. Heading F2V. [Also in Division G1] In a pressure sensing device insertable in an opening 12 in the wall of a container or conduit 13 and having an inlet 27 from an air pressure source leading through a duct 29 to a pressure gauge and a duct 24 to a chamber 26 and an exhaust passage 25 the arrangement is such that when the pressure in the container or conduit 13 acting on a diaphragm 19 is greater than the air pressure supply to the chamber 26 the diaphragm 19 is fluxed to close the exhaust passage 25 and the air pressure supplied through duct 29 is indicated on a pressure gauge, Fig. 1 (not shown).
Patent GB-1000624-A (GB)
Title: A self-loading transport vehicle
IPC: E02F3/348
Filed: 1963-12-20
Abstract: 1,000,624. Self-loading vehicle. AMERICAN ZINC, LEAD SMELTING CO. Dec. 20, 1963, No. 50444/63. Heading E1F. The front end of a load receiving vehicle body has pivoted thereto a U-shaped trough 10 on which is pivoted a link plate 21 carrying a pivoted bucket 30. In use, the bucket is repeatedly pushed into material, while held horizontally (Fig. 3, not shown), and lifted by arms 36 (Fig. 5, not shown) to fill trough 10, which is itself held down by a pair of hydraulically movable stops (18, Fig. 5, not shown). These stops are then withdrawn to allow both bucket and trough to pivot (Fig. 6), pushing material rearwards into the vehicle. During these movements rise of the bucket is limited by roller chains 63, resiliently anchored at one end (Fig. 4, not shown). Flanges 25 (on link plate 21) and stops 162, 163, 164, on the vehicle side walls between which the bucket and trough operate, limit rearward and downward movements in the Fig. 6 position. Arms 36 are attached to endless chains 42, which are moved by an electric motor to raise the bucket and trough, the attachment carriers engaging bars 56 to prevent the carriers rising. The various chains and stops shown in Fig. 6 are duplicated on the other side of the bucket and trough, (Fig. 11, not shown). A lower dump aperture in the vehicle body is opened by rearward movement of a roller-mounted door 9 under the combined action of two chains plus an additional chain operated by a jack (104, Fig. 16, not shown), the door being closed by the two chains only. Fig. 16, not shown, illustrates the various electric motors which respectively drive left and right hand crawler tracks 8, chains 42, the door actuating chains, the hydraulic system and a drum on which the power supply cable is wound. These items are mounted in the rear of the vehicle behind a dividing wall (3, Fig. 4, not shown) which also carries a latching mechanism for door 9.
Patent GB-1124485-A (GB)
Title: Duplicating methods
IPC: B41M5/025
Filed: 1965-11-29
Abstract: 1,124,485. Printing process. G. RITZER. FELD. 29 Nov., 1965 [4 Jan., 1965], No. 50556/65. Heading B6C. A method of duplicating on to a copy sheet from a printing master sheet comprises the steps of applying to the image area of the master sheet a coating of a reaction medium suitable for azo dye formation, moistening the coating with an alcoholic solution of a diazonium salt and a coupler which reacts with the salt to form a dye, the chemical reactions between the coating, the salt and the coupler being such that a visible dye is formed on the image area and subsequently applying the copy sheet to the printing master to transfer the dye from the image area thereof to the copy sheet. The copy sheet may be moistened with a neutral liquid e.g. an alcoholic solvent. The image area of the master sheet may be coated with an alkaline substance e.g. triethanolamine or diethanolamine or an acidic substance. The coating may be moistened with an alcoholic solution of a diazonium chloride-zinc chloride double salt of 0-talidine and 1-amino-8-naphthol-4-sulphonic acid.
Patent GB-1345859-A (GB)
Title: Suspension for a non-steered wheel of a vehicle
IPC: B60G7/00
Filed: 1972-11-03
Abstract: 1345859 Independent suspensions VOLKSWAGENWERK AG 3 Nov 1972 [27 Nov 1971] 50717/72 Heading B7D An independens suspension for a non-steered wheel of a vehicle comprises a longitudinal or oblique suspension arm 1 carrying an axle support 10 which is pivotable against the restoring force of a combined compression and tension spring 9 about hinge means 8 at the end of the arm remote from its pivot axis 6. The arm 1 in a leading link in the case of a front wheel and a trailing link in the case of a rear wheel so that the axle support 10 pivots on the arm 1 under cornering loads on the wheel to produce on understeering effect which counteracts an oversteering effect resulting from deflection of the arm 1. The pivot axis of the hinge means 8 may lie in the central plane of the wheel or be inclined to meet the roadway on the line of intersection of the roadway with the central plane of the wheel. Stops limit movement of the axle support 10 on the arm 1 and may be arranged to prevent outward movement of the support from the straight ahead position. In another embodiment the suspension arm comprises inner and outer side members which are pivotally connected at their ends remote from the pivot axis of the arm, and the axle support is rigidly attached to the outer side member which is displaceable along the pivot axis against restoring springs.
Patent GB-1282996-A (GB)
Title: Photosensitive materials
Inventor: NEUMANN WOLFRAM
IPC: C07D491/06
Filed: 1970-10-26
Abstract: 1282996 N - Substituted - naphthalene-1,4,5,8- imides AGFA GEVAERT AG 26 Oct 1970 [3 Nov 1969] 50733/70 Heading C2C [Also in Divisions C4 and G2] N,N<SP>1</SP> - bis - (dimethylaminopropyl)- naphthalene 1,4,5,8-diamide is prepared by refluxing 3-amino-1-dimethylaminopropane with naphthalene 1,4,5,8-dianhydride. Other N,N<SP>1</SP>-symmetrically substituted naphthalene diimides, in which the substituents are represented by -XZ, wherein X is (i) alkylene or alkenylene radical which may be interrupted by oxygen or sulphur atoms, phenylene or cycloaliphatic rings or the group R<SP>II</SP> being hydrogen, alkyl, alkenyl or cycloalkyl, (ii) a saturated or unsaturated cycloaliphatic radical or (iii) a chemical bond and Z is -OR<SP>II</SP>, or nitrile, R<SP>III</SP> being the same as R<SP>II</SP> except hydrogen, are prepared by substituting the appropriate compounds for 3-amino-1-dimethylaminopropane. Asymmetrically substituted naphthalene diimides of formula wherein X and Z are as above are prepared as above using less amine. This product is now reacted with a different amine or heterocyclic compound to produce asymmetrically disubstituted amines as set out below. N - (dimethylaminopropyl)- naphthalene diimide is prepared by refluxing stoichiometric quantities of the dianhydride and amide. Compounds of formulµ are prepared by refluxing the above N-substituted diimide with nortricyclylamine and N- methyl - N<SP>1</SP> - 3 - aminopropyl piperazine respectively. N - ((dimethylaminopropyl) - naphthalene- 1,4,5,8 - mono - imide - mono - anhydride is obtained by condensing the dianhydride with 1 molar equivalent of 3-amino-1-dimethylaminopropane. The HCl salt of the mono-imidemono-anhydride is prepared by conventional methods.
Patent GB-1365954-A (GB)
Title: Process for acetylation
IPC: C07D499/12
Filed: 1971-11-02
Abstract: 1365954 Acetylation of penicillins and cephalosporins ELI LILLY & CO 2 Nov 1971 [6 Nov 1970] 50851/71 Heading C2A A process for preparing a compound of Formula I wherein Y is in which R is methyl or acetoxymethyl and R 1  is H, an alkali or alkaline earth metal or an ester group, by acetylation, comprises reacting a compound of formula wherein Y is as defined above, with ketene in an aqueous or inert non-aqueous solvent at a temperature between 5‹ and 35‹ C., and when a non-aqueous solvent is employed and when R 1  is H, hydrolysing the mixed anhydride initially produced with water. Examples of compounds which may be reacted with ketene in such a process are 6-aminopenicillanic acid and 3- acetoxymethyl (or 3 - methyl) - 7 - amino - #<SP>3</SP>- cephem-4-carboxylic acid.
Patent GB-1332692-A (GB)
Title: Process for the production of photographic images
IPC: G03C1/73
Filed: 1970-10-28
Abstract: 1332692 Photographic processes AGFAGEVAERT A G 28 Oct 1970 [6 Nov 1969] 51141/70 Heading G2C A photographic process for producing positive visible images comprises imagewise exposing a layer containing a protein which is inactivated on exposure and which is capable of catalytically decomposing peroxy compounds (i.e. compounds containing an -o-o-group) and treating the exposed layer with a peroxy compound to produce a visible image either physically by formation of vesicles (if a binder is present in the protein layer) or chemically by carrying out the treatment in the presence of a reactant for a colour-forming reaction. Suitable reactants are those disclosed in Specification 1268126. Specified proteins are haemoglobin and haemin and the enzymes catalase and peroxidase. The sensitivity of the layer can be increased by adding (a) substances which split off halogen on exposure e.g. organic halogens as in Specification 957192 and silver halides, (b) compounds which split off cyanide on exposure e.g. iron cyanides and cyanides of triphenyl methanes or (c) electron acceptors e.g. chloranil or tetracyano-p-quinodimethane.
Patent GB-1455423-A (GB)
Title: Pressurised oil burners
IPC: F23D11/10
Filed: 1973-11-05
Abstract: 1455423 Pressurised-oil burner; pulsating combustion CLEAN AIR CO Inc 5 Nov 1973 [3 Nov 1972] 51197/73 Heading F4T A pressurized oil burner includes a jet which comprises a valve body yielding loaded against a valve seat so that it undergoes pulsations towards and away from the valve seat upon fuel oil being supplied at a pulsating pressure between the valve body and the valve seat, the burner also including a starting nozzle provided at one end of a sleeve which abuts the valve body of the jet, the starting nozzle comprising a mixing chamber provided with outflow apertures and means for introducing fuel oil and combustion air so that fuel oil and combustion air may be supplied to the chambers while the fuel oil supply to the jet is closed, the jet and starting nozzle being arranged to be supplied from a common fuel oil supply. An electromagnet 5 is energized at a constant frequency to reciprocate a piston 11, to supply air via lines 12, 14, 23 and non- return valves 13, 15 to a starting nozzle 20, and to reciprocate a piston 6 to supply a pulsating fuel supply from line 7 and non-return valve 9 to jet 16 via non-return valve 10 and to starting nozzle 20 via electromagnetic valve 22 and line 21, a restriction 34 in a return line 33 determining the flow rate to nozzle 20. On start-up valve 22 and ignition transformer 25 are energized via contactor 31 and, since the jet 16 has a greater flow resistance than the nozzle 20, the fuel flows to nozzle 20 and mixes therein with air from line 23, electrodes 24 starting a pulsating combustion whereby an intermittent negative pressure is created in the combustion zone. The pressure fluctuations in the combustion zone or within a sleeve 18 are sensed along line 32 to operate a bellows and open contactor 31 whereby valve 22 closes and transformer 25 is de-energized, the fuel then issuing pulsatingly from jet 16 into sleeve 18 and mixing therein with air admitted via apertures, this mixture passing into the combustion zone via apertures 26 controlled by flaps 27 which open when a negative pressure is intermittently created in the combustion zone. If the pulsating combustion ceases the pressure change is sensed on line 32 whereby contactor 31 reenergizes transformer 25 and opens valve 22. A thermoelement 35 senses the temperature in the combustion zone, e.g. in a furnace, and gives rise to a temperature-dependent voltage at contacts 36 which is used to operate a means 30 adjusting a damper 29 for apertures 28 and to energize electromagnet 5. The voltage to electromagnet 5 can also be adjusted by a control 17, voltage changes giving rise to changes in the pulse pressure of the fuel pump 2 and thus altering the fuel flow rate out of jet 16.
Patent GB-1061430-A (GB)
Title: A device for connecting thin-walled hollow plastic laths
Inventor: BROICH JAKOB
IPC: F16B7/04
Filed: 1964-02-11
Abstract: 1, 061, 430. Tube joints. DYNA-PLASTIGWERK G.m.b.H. Feb. 11, 1964, No. 51559/65. Divided out of 1,059,761. Heading F2G.  A connecting piece for joining thin-walled; hollow plastic laths is X-shaped in cross section. the legs, being preferably curved, frictionally engaging the walls of the laths.
Patent GB-1267430-A (GB)
Title: Improvements in blow-moulding
IPC: H01H13/00
Filed: 1969-10-22
Abstract: 1,267,430. Injection - blow moulding. ROBERT BOSCH G.m.b.H. 22 Oct., 1969 [25 Oct., 1968], No. 51714/69. Heading B5A. In an injection-blow moulding process, the injection-moulded preform is reheated and partially pre-expanded and allowed to cool in this pre-expanded condition during a dwell period before final expansion in a blow-mould. The preform is preferably pre-expanded with a metered volume of pressurized gas, e.g. to twice its initial volume, retained, e.g. for P.V.C. for 5-10 seconds in the pre-expanded condition before final expansion, preferably at a higher gas pressure. The pre-expanded preform may be stretched by a plunger in the blow mould before the final expansion.