baber/WOPTO huggingface dataset:
Patent GB-1207411-A (GB)
Title: Improvements in or relating to polyurethane compositions
IPC: C08K5/41
Filed: 1968-01-25
Abstract: 1,207,411. Polyurethane compositions. BOSTIK Ltd. 25 Jan., 1968 [26 Jan., 1967], No. 3863/68. Headings C3C and C3R. A polyurethane composition comprises a polyurethane and, based on the total weight of composition, 5 to 50 weight per cent of an aromatic sulphone of formula:- R-SO 2 -R 1  wherein R is a phenyl radical which may be substituted with up to 2 substituent groups which have no aromatic ring content and are linked to the phenyl ring at any of the C-atoms which are not linked to the sulphur atom by a C-S bond and R 1  is a phenyl, biphenyl or naphthyl radical which may be substituted with up to 2 substituent groups which have no aromatic ring content and are linked to the phenyl, biphenyl or naphthyl rings at any of the C-atoms which are not linked to the sulphur atom by a C-S bond. The diaryl sulphone is suitably added to one of the reactants prior to reaction, e.g. to the hydroxyl terminated polymer, or to the polyurethane when the reaction has been partially or totally carried out. The polyurethane may be in the form of a foam or an elastomer. Several diaryl sulphones are listed, those specifically exemplified being tolyl phenyl-, xylyl naphthyl- and xylyl biphenylsulphone, which are added to a prepolymer and diamine to form an elastomer and to rigid and flexible polyurethane foam forming reaction mixtures.
Patent GB-374811-A (GB)
Title: Improvements in shock absorbers for vehicles
IPC: F16F7/06
Filed: 1932-02-09
Abstract: 374,811. Shock-absorbers. OBERDORF, J., 19, Avenue Victor Emmanuel III, Uccle, Brussels. Feb. 9, 1932, No. 3877. Convention date, Feb. 10, 1931. [Class 108 (iii).] In a shock-absorber, in which a drum 2 is formed on a lever 1 and has a friction lining 3 co-operating with a spring 4 which can be expanded, the spring at one end 13 engages a groove 14 in a control member 5 rotatable independently of the lever and its other end 16 is bent inwards to bear resiliently against the member 5. The member 5 is carried eccentrically on a disc 6 carried by a lever 7. A lever 21 housed in a casing 23 fixed to the disc 6 is carried by an extension of the member 5 and its free end co-operates with a rack 22 carried by a rod 24 which can be rotated by means of a knob 25 or controlled from a distance.
Patent GB-246676-A (GB)
Title: Improvements in and connected with air heaters
IPC: F23M20/00
Filed: 1925-02-12
Abstract: 246,676. Nelson, W. Feb. 12, 1925. Heating air.-An air heater of the type in which the heat-exchanging media pass through alternate chambers formed by partitions F on a casing A, the chambers being subdivided into compartments by strips G, is constructed so that the strips G terminate at different heights in the end passages so as to distribute the gases equally over the compartments. The strips may be straight as in Fig. 1, corrugated as in Fig. 2, or spiral. The partitions F separating the chambers may be flat, or corrugated as shown in Fig. 8.
Patent GB-580558-A (GB)
Title: Improvements in apparatus for discharging stop end horizontal gas retorts
IPC: C10B33/04
Filed: 1945-02-16
Abstract: 580,558. Discharging gas retorts. CROWTHER, R. W., and JENKINS & CO., Ltd., W. J. Feb. 16, 1945, No. 3944. [Class 51 (ii)] A device for discharging stop-end horizontal gas retorts comprises an arched cover a, Fig. 3, to fit over the caked mass f in the bottom of the retort to prevent breakage whilst being withdrawn by the rake heads d. The latter are mounted on the end of the cover which is actuated by a rack, and hand or power operated pinion l, Fig. 1, the cover being vertically adjustable on a transversely movable frame g. The rake heads are operated by hand or power.
Patent GB-1361485-A (GB)
Title: Internal combustion engines
IPC: F02M69/04
Filed: 1971-02-04
Abstract: 1361485 Fuel injectors, surface carburetters PLESSEY CO Ltd 10 Jan 1972 [4 Feb 1971 9 March 1971] 3981/71 and 6330/71 Heading F1B An I. C. engine comprises apparatus for injecting a solid fuel jet 6 into the cylinder, collecting the injected fuel and removing it from the cylinder without any appreciable amount of fuel being retained in the cylinder and dissipating apparatus for dissipating at least part of the jet for a predetermined time in the cylinder. Fuel from tank 13 is fed to nozzle 7 by a pump 12 at a rate proportional to engine speed so that the solid jet 6 is aimed at the open collector tube 14 from which a passage leads through a gas separator 15 to the inlet side of pump 12. Any entrained gas is led by pipe 16 to the inlet manifold. To mix fuel with the combustion air a combined oscillator and timer unit 10 controls an ultrasonic vibrator 9 which vibrates to dissipate the fuel jet 6 into a spray cone 18. With low engine loads the vibration pulses are limited to the part of the cycle immediately preceeding ignition to ensure a readily ignitable mixture in the vicinity of the spark plug gap. The fuel supply to nozzle 7 may be continuous or non-continuous or may be at a rate independent of engine speed. The collector may have a valve for minimizing gas escape via the connector during the fuel dissipation period and conduit 14 maybe undulating Fuel dissipation may be by means of a baffle. Specifications 1311879 and 1138536 are referred to.
Patent GB-642653-A (GB)
Title: Improvements in and relating to the manufacture of rennet and rennet preparations
Inventor: RUTTER LAURENCE FREDERICK
IPC: C12N9/64
Filed: 1947-02-12
Abstract: Rennet preparations are obtained by mixing together at least two portions of rennet extract each containing a body which will react with the body in the other portion or portions when mixed therewith to give, in the absence of a water-soluble salt of an aromatic sulphonic acid, an innocuous readily-filterable precipitate on the freshly-formed surfaces of which the active principles of rennet are adsorbed.  Suitable bodies which may be added to each portion are sodium or potassium phosphate and calcium chloride.  Preferably the pH is adjusted to between 4 and 5 by the addition of acid.  The precipitate formed after filtering is mixed with an eluant such as dilute sodium bicarbonate or disodium phosphate, the active rennet passing into solution which is separated from the absorbent by filtration or centrifuging and the solution is then saturated with salt or ammonium when a precipitate is formed which may be sulphate readily filtered or centrifuged off.  An example is given. Specification 251,405, [Class 2 (iii)], is referred to.
Patent GB-306132-A (GB)
Title: Manufacture of chlorinated organic acid esters of cellulose
IPC: C08B3/14
Filed: 1929-02-07
Abstract: 306,132. I. G. Farbenindustrie Akt.- Ges. Feb. 17, 1928, [Convention date]. Cellulose carboxylates. - Cellulose esters of saturated organic acids are dissolved or suspended in an indifferent medium and treated' with a chlorinating agent, whereby chlorination can be effected, if desired, until all the hydrogen atoms of the acid radical of the cellulose carboxylate have been substituted by chlorine. The cellulose halogen carboxylates show increased stability towards hydrolytic agents and possess enhanced solubility. In examples, cellulose triacetate dissolved in tatrachlorethane is treated with phosphorous pentachlorideand the purified products, obtained by pouring the mixture into ethanol and washing the precipitate with ethanol and ether, contain from 5.0 to over 53 per cent of chlorine and are soluble in acetone; cellulose triacetate is dissolved in a mixture of chloroform and tetrachlorethane, phosphorous trichloride is added and the mixture exposed to sunlight whilst chlorine is passed into it to give a product containing 31 per cent of chlorine and soluble in acetone, chloroform, bromoform, ethyl acetate or hot benzene; cellulose trilaurate dissolved in a mixture of tetrachlorethane and carbon tetrachloride is heated with phosphorous pentachloride and the purified product, obtained by pouring the mixture into ethanol, kneading the precipitate several times with ethanol and repeatedly redissolving the chlorinated ester in ether and reprecipitating it with ethanol, contains about 16.5 per cent of chlorine.
Patent GB-753027-A (GB)
Title: Improvements in or relating to a wheel assembly
Inventor: SCHROEDER CHARLES SCHOERN
IPC: B60B19/00
Filed: 1954-02-12
Abstract: 753,027. Vehicle wheels. YALE & TOWNE MANUFACTURING CO. Feb. 12, 1954, No. 4187/54. Classes 144 (1) and 144 (2). A truck wheel comprises a pair of discs 19, 20 slidably splined on to an axle 11 and having means, such as bolts 23, to draw them together, the discs each having a diametral or radial slot 26 and a wedging engagement with a common rim member 24 so that when drawn together they are clamped on to the axle 11 and wedged tightly within the rim member. As shown, the rim member 24 comprises a transversely split expansible sleeve the inner periphery of which is shaped to provide complementary wedging surfaces for axially outwardly flared peripheral flanges 21, 22 of the discs 19, 20 respectively. This arrangement provides for use, and easy removal, of a band tyre A the band 18 of which surrounds the sleeve 24, the sleeve being expanded, on assembly of the wheel, by tightening of the bolts 23, to clamp the tyre in position. In an alternative arrangement using a tyre without a band but having conical inner peripheral surfaces complementary to the disc flanges 21, 22, the sleeve 24 is replaced by a pair of frusto-conical continuous sleeve sections..
Patent GB-784382-A (GB)
Title: Method and apparatus for the manufacture of tempered safety glass, especially intended for use in automobiles, and safety glass sheet obtained by said method
IPC: C03B27/052
Filed: 1956-02-10
Abstract: 784,382. Tempered glass. COMPAGNIES REUNIES DES GLACES ET VERRES SPECIAUX DU NORD DE LA FRANCE. Feb. 10, 1956 [Feb. 14, 1955], No. 4189/56. Class 56. In the manufacture of tempered safety glass sheets, particularly for vehicle wind-screens, wherein two highly-tempered zones 2, 3 are separated by a barrier strip 8 of less highly tempered glass, the glass is so heat-treated that the complete periphery (i.e. including the ends 7) of the barrier strip is placed under permanent compression throughout its thickness as indicated by the groups of convergent arrows in Fig. 2. The groups of divergent arrows (broken lines) indicate tension in the middle of the thickness of the glass in the highly-tempered zones. The process consists essentially in heating the sheet in such a way that the temperature of the strip becomes lower than that of the zones it separates, and so that the temperature of the ends of the strip, adjacent the edges of the sheet, is lower still but is such that the viscosity of the glass at those ends is at least 10<SP>13</SP> poises. The whole sheet is then suddenly cooled. In general the selective heating is controlled by the use of screens over the strip and its ends. Fig. 10 shows an example of such screens 15, 17 and in this case the ends of the end screens 17 extend somewhat along the edges of the sheet adjacent the ends of the strip. The design of the screens, the materials therefor, and the times of their application and removal are discussed. Specifications 704,312 and 726,626 are referred to.
Patent GB-1439709-A (GB)
Title: Punch member for puncturing the seal of a gas container
IPC: F04B33/00
Filed: 1974-01-29
Abstract: 1439709 Discharging compressed gas NIPPON PISTON RING CO Ltd 29 Jan 1974 [3 Feb 1973] 04212/74 Heading F4P The seal 16 of gas container 11 is punctured by punch member 7 which has formed integrally with it a hollow needle 19 having a generally conical outer wall surface provided at its distal end with an inclined cutting surface. When the needle is forced into engagement with the seal, the cutting edge punctures the seal and the conical surface of the needle forms the margin of the seal surrounding the puncture into a conical seating making sealing engagement with the needle.
Patent GB-584376-A (GB)
Title: Improvements in or relating to valve assemblies
IPC: F16K31/524
Filed: 1944-03-07
Abstract: 584,376. Valves. DEHN, F. B. (Adel Precision Products Corporation). March 7, 1944, No. 4229. [Class 135] In a valve assembly for controlling hydraulic cylinders and the like, in which a common cam-shaft F in the valve block E operates all the valves A, B, C, D through push rods G moving at right angles to the axis of the cam-shaft, each valve member 16 is mounted in a removable tubular cage 6 to form a self-contained unit, the cage being provided with an internal seat 12 for the valve member and with an external frusto-conical part 8 which seats at a shoulder 9 in the valve block E and the valve member having a short stem 26 urged into contact with the push rod G by a spring 21 interposed between the valve member 16 and a plug 22 seating against the cage 6. An annular chamber 14 is formed round the cage by an annular groove 13 in the latter and this communicates with a further chamber 19 between the cage and the valve member by ports 15. The valve 16 is formed integrally with a tubular guide 17 and the interior of the latter communicates with the chamber 19 by means of ports. 20 in a reduced neck part 18. The screwed closure plug 22 clamps on to a sealing ring 24 in a recess 25 round the cage 6. The annular chambers 14 of the valves B, C are connected to the discharge from a pump by passages 33<1>, 33<11>, 33 whilst the annular chambers 14 of the valves A, D are connected to opposite sides of the hydraulic cylinder by passages 36, 35. The latter passages are also connected to the chambers beneath the valves B, C which are sealed off by spring-pressed packing rings 28. The chambers beneath the outer valves A, D commimicate with the bore 32 containing the cam-shaft by means of passages 30, 31 and the latter have access to a passage 38 leading back to the pump by channels 39, 40, 41, 42 cut in the cam-shaft. In operation, the valves open alternately in pairs, A and C being open and B and D closed as shown in Fig. 2.
Patent GB-278574-A (GB)
Title: Improvements in parachutes
IPC: B64D17/52
Filed: 1927-02-15
Abstract: 278,574. Calabi, A. G. Feb. 15, 1927. Addition to 272,844. Parachutes.-The waist-belt of the parachute device described in the parent Specification is modified in that the straps 1 connected to the buckling device are sewn on the belt to the positions shown, after-which they pass through holes in the knapsack, and are crossed, the parachute rope 5 being connected to them as shown. The free portions of the straps may be elastic. Elastic straps 6 connect the sides of the knapsack to the belt.
Patent GB-1095714-A (GB)
Title: Process for modifying polyamides
IPC: D06P1/655
Filed: 1965-02-01
Abstract: A polyamide is reacted with an alkylating agent and the resulting polyiminoester salt is further reacted with a base containing at least one primary amino group, both reactions being in an aqueous medium.  Polyamides specified are poly (e -caprolactam), poly (o -undecylic lactam), and poly (hexamethylene adipamide). They may be in the shape of fibres. Alkylating agents specified are alkyl sulphates, e.g. dimethyl and diethyl sulphates and trialkyl oxonium salts, i.e. salt comprising the cation <FORM:1095714/C3/1> where R1- 3 are alkyl groups, e.g. Me or Et and an anion, e.g. SbCl6-, BF4-, AlCl4-, and FeCl4-. A 5-30% aqueous solution may be used. Between the two treatments the polymer which contains unchanged amide units and units of formula <FORM:1095714/C3/2> A being alkylene, may be dried and heated to 100-150 DEG  C.  Bases specified are: ammonia, hydroxylamine, hydrazine, dodecylamine, octadecylamine, ethylene diamine, diethylene triamine, triethylene tetramine, poly (ethylene imine), mono-, di- and trialkyl hydrazines, e.g. N,N - dimethylhydrazine, mono-and di-ethanolamine, glucamine, glycine, taurine, methyl taurine, aniline 3- and 4-sulphonic acid, amines containing quaternary ammonium groups and dyestuffs containing primary or secondary amino groups.  The second reaction may occur at 20-50 DEG  C. to give a polyamide containing <FORM:1095714/C3/3> groups where R4 is the remainder of the amino compound.  In Examples (1) and (2) the product is treated with dyes.  In Example (3) the tetrasodium salt of EDTA is present during the second reaction.ALSO:The dyeing of polyamides is facilitated by treating them with an alkylating agent in water to convert -A-NH-CO- units, where A is alkylene, to -A-NH-C+(OR1)- units where R1 is alkyl and then with a primary amine R4NH2 and water to form units of formula -A-NH-C(=NR4)-.  In one embodiment the compound R4NH2 is an amino-azo-dye or an amino - anthaquinone-dye.  In others R4 contains amino, hydroxyl, carboxyl or sulphonic acid groups to facilitate dyeing by acid wool dyes, chlorotriazine or chloropyrimidine dyes, basic dyes and metallic dyes.  In Example 1 a polyamide stable fibre fabric is treated with Et3O+FeCl4- in water and glucamine in water and then with a dyestuff of formula:  <FORM:1095714/D1-D2/1> In Example 2 the amine is polyethylene imine and the dye: <FORM:1095714/D1-D2/2>
Patent GB-1085122-A (GB)
Title: Improvements in or relating to methods of assembling components including elastomeric elements held in precompression
Inventor: CAUNT ALAN
IPC: B29C70/68
Filed: 1964-01-31
Abstract: 1,085,122. Resilient mountings. METAL. ASTIK Ltd. Jan. 8, 1965 [Jan. 31, 1964], No- 4347/64. Heading F2S. A method of assembling a resilient mounting comprising elastomeric element 27 held in precompression between rigid, nested elements 25, 26 and adhesively united to at least one of them includes the steps of pre-compressing the elastomeric element 24 subjecting the elastomeric element while compressed to a sufficiently low temperature and for a sufficient time to freeze the pre-compression stresses into the elastomer. The elastomeric element is then released and mounted between the two elements 25, 26 after at least one of the interfacing surfaces which is/are to be adhesively united has been coated with an adhesive substance. The elastomeric element is further allowed or caused to return to the ambient temperature condition. The apparatus as used for the method comprises a ram 30 operated by an hydraulic press, the elastomeric members being gradually pre-compressed at first through the throat 28 of a gap formed between inner and outer freezing baths 32, 33. The assembly may comprise a plate resiliently held by the elastomeric element within the confines of a U-shaped member (Fig. 3, not shown).
Patent GB-927021-A (GB)
Title: Collapsible shelters
IPC: E04H15/04
Filed: 1960-02-08
Abstract: 927,021. Collapsible shelters. A. R. DAWSON, and R. V. TODD. Feb. 6, 1961 [Feb. 8, 1960], No. 4358/60. Class 20 (1). A collapsible shelter comprising an inverted U-frame la to be secured to a wall W, inverted U-frames 1 pivoted thereto at 2 and a flexible covering 6 is counterbalanced by weights 11 connected to the lowest frame by cords 9 to assist in returning the shelter to a collapsed position against the wall. In a modification, the frames are pivoted on separate axes. In another construction, the weights are replaced by coil springs which may operate with an over-centre action.
Patent GB-849998-A (GB)
Title: Process for sweetening sour hydrocarbon distillates
IPC: B01J31/22
Filed: 1959-02-09
Abstract: Metal phthalocyanines or their sulphonated or carboxylated derivatives are used to catalyse processes for sweetening sour hydrocarbon distillates with oxygen or a free oxygen-containing gas in the presence of an alkali.  Suitable alkalis are aqueous sodium and potassium hydroxide solutions which may include a solutizer e.g. methanol, ethanol, phenol, a cresol, tannin or an isobutyrate.  Air is the preferred free oxygen-containing gas. The process may be effected batchwise or continuously and at ambient or elevated temperature e.g. 38 to 205 DEG C.  In a preferred process the alkali containing the catalyst is sprayed into the upper part of a sweetening zone, and the air and hydrocarbon are introduced into the lower and intermediate parts respectively. 50 to 95% of the mercaptans may first be removed by a conventional pretreatment e.g. with alkali which may contain solutizers. Hydrocarbon distillates mentioned are cracked, straight run and natural gasolines, naphthas, jet fuels, kerosenes, aromatic solvents, stove oils, range oils, and distillate fuel and lubricating oils.  In examples a cracked gasoline, a kerosene, a fuel oil (184-272 DEG C.) and a light naphtha (168-205 DEG C.) are agitated with sodium or potassium hydroxide containing 50, 100 or 250 p.p.m. cobalt phthalocyanine disulphonate in the presence of air.
Patent GB-573841-A (GB)
Title: Improvements in and relating to thermoplastic compositions
IPC: A23B4/10
Filed: 1942-04-03
Abstract: A thermoplastic composition comprises one or more vinyl halide polymers, one or more plasticizers and chlorinated paraffin wax containing 35-55 per cent chlorine, the proportion of chlorinated wax being 1-65 per cent of the combined weights of the chlorinated wax and plasticizers and the polymer comprising 40-70 per cent by weight of the composition.  The polymer may be polyvinyl chloride, bromide or iodide or an interpolymer thereof with vinyl acetate, methyl acrylate or methacrylate or a -chloracrylate, styrene or vinylidene chloride.  Suitable plasticizers are dibutyl phthalate and tricresyl phosphate. Pigments, fillers and stabilizers may be incorporated in the composition.
Patent GB-702635-A (GB)
Title: Improvements in or relating to holders for detachable vehicle number plates
Inventor: FEARON PHILIP VIVIAN
IPC: B60R13/10
Filed: 1952-02-25
Abstract: 702,635. Number plates. EQUIPMENT & ENGINEERING CO., Ltd. Oct. 20, 1952 [Feb. 25, 1952], No. 4896/52. Class 3(2) [Also in Group XXXV] A holder for a detachable vehicle number plate comprises a rectangular support 1 having retaining means 4, 6 for a number plate 2 such that the number plate can be inserted into and removed from the support by movement in a direction which is mainly normal to the plane of the number plate, that is to say, movement in a direction parallel to the length of the vehicle, and switch apparatus secured to the support and arranged to control the circuit of one or more rear lights on the vehicle and comprising a switch 15 having a spring-pressed operated member 13 which member is normally maintained by its spring 17 in a position in which the switch is open, the arrangement being 'such that when the number plate is in position in the holder it maintains the operating member in its switch closing position, whereas when the number plate is removed from the holder, the spring acting on the operating member maintains the switch open. The retaining means consist of channels 4, 6 on the bottom and top edges respectively of the supporting plate 1. The lower channel is shallower than the upper channel and its front wall is cut away centrally to enable the number plate to be removed. The upper channel is provided with a spring 8 which bears on the flanged top edge 10 of the number plate to keep it in the lower channel and the plate is removed by moving it upwardly against the spring until it clears the lower channel when it can be drawn forwardly. The ends of the channels are closed by tabs 7 so that the plate cannot be moved laterally. The switch 15 of the push button type is mounted on the rear of the plate 1 in a cylindrical housing 11 and its button 16 is connected to the operating member 13 by the helical compression spring 17. The operating member 13 extends through the plate 1 and is slidably mounted on a guide 12. When the number plate 2 is in position, the member 13 is pressed into its guide and closes the switch 15 so that the rear lights of the vehicle can be controlled by the normal switch. When the number plate is removed the circuit of the rear lights is broken by the switch 15. Registering holes are provided in the number plate and support plate so that padlock may be used to lock the number plate in position.