baber/WOPTO huggingface dataset:
Patent GB-715412-A (GB)
Title: Water-soluble heteropolymers and process for the production thereof
IPC: C08F22/04
Filed: 1952-05-13
Abstract: Water-soluble salts of copolymers of styrene and maleic anhydride prepared by heating with from 0.001 to 2.0 mol. per cent. of an unsaturated compound having at least two but not more than three double bonds in non-conjugated relationship, and an inert organic solvent, e.g. acetone and benzene, in an amount of at least three times the total weight of styrene and maleic anhydride, are made by neutralizing with an alkali metal or ammonium hydroxide or with a salt of a weak acid thereof.  The monomers are preferably used in equimolecular proportions and cross-linking agents mentioned are, divinyl- and trivinyl-benzenes; diallyl fumarate, succinate, maleate, malonate, allylmalonate, citrate, acetone, and oxalate; allyl, methallyl, crotyl and ethallyl acrylates and methacrylates; allyl ethacrylate, cinnamate, alpha-phenylacrylate, and alpha-chloroacrylate; diallyl and dimethyallyl phthalates; dimethallyl and diethallyl itaconates; divinyl, diallyl and dimethallyl ethers; ethylene glycol and glyceryl diacrylates and dimethacrylates; and ethylene glycol diethacrylate, and triallyl citrate.  Peroxy catalysts may be present.  Aqueous solutions of p the salts exhibit non-Newtonian fluidity.
Patent GB-1235074-A (GB)
Title: Improvements relating to container unloading apparatus
Inventor: COSTON RONALD FRANCIS
IPC: B65G67/00
Filed: 1969-03-07
Abstract: 1,235,074. Discharging containers by tipping. SOVEX Ltd. 16 Feb., 1970 [7 March, 1969], No. 12187/69. Heading B8E. The contents of a container C, Fig. 3, are discharged by tilting the container to the position shown in Fig. 4, and moving a fence 9 downwards with respect to the side of the container so that the contents progressively slide out down a shoot 13, attached to the fence, on to a conveyer 14. The containers contain air-freight or luggage and are moved on trollies 3, Fig. 3, on to a tippler 6 by an endless pusher conveyer 2. The tippler is turned about an axis 7 by a ram 8 and the fence is moved by pinions 11 which engage a rack 10. In a second embodiment the container and a fence 29, Fig. 8, which supports a shoot 33, are tipped to the position shown in Fig. 9 by a ram 28 and the container is raised up rails 25 with respect to the fence, by winches 31. The shoot 33 may be mounted on the rails 25 as shown in Fig. 11. In this embodiment the container may be tipped endways, Fig. 14, as well as sideways, by a ram 37 and link 38. This arrangement allows selected areas of the container to be discharged. If containers with a vertical longitudinal division are used they may be successively tilted to first one side and then the other by separate tipplers. Horizontally sliding doors may be provided and used in conjunction with the fence for selective programmed discharge of the containers. The containers may be discharged on to a variety of conveyers, some arrangements of which are described.
Patent GB-852831-A (GB)
Title: Radiation polymerization of unsaturated nitrogen compounds
Inventor: TUTWILER THOMAS STANFORD
IPC: F02B3/06
Filed: 1957-04-15
Abstract: Copolymers are prepared by exposing a mixture of an unsaturated nitrogen-containing compound selected from C4-C18 alkyl acrylamides, such as N-octyl or N-butyl acrylamide, di (C2-8 alkyl) amino methacrylates such as N, N diethylamino methacrylate, acrylonitrile and methacrylonitrile, with an unsaturated organic ester, to high intensity radioactive radiation, such as gamma rays, of at least 10,000 R/Hr for a time sufficient to increase the molecular weight of the resulting copolymer to at least 1,000 Staudinger.  The ester may be an ester of acrylic, methacrylic, fumaric, maleic, citraconic, mesaconic, itaconic or aconitic acid, or may be vinyl acetate, butyrate or laurate or isopropenyl acetate.  Preferred esters for use in the preparation of lubricating oil additives are the esters of branched chain alcohols produced by the catalytic carbonylation of C7 to C12 olefins with carbon monoxide and hydrogen, and the commercial mixture of alcohols obtained by the hydrogenation of coconut oil. During the reaction the monomers may be dissolved in a solvent such as mineral oil carbon tetrachloride or dioxane.  Specification 802,082 is referred to.ALSO:Copolymers are prepared by exposing a mixture of an unsaturated nitrogen-containing compound selected from C4-C18 alkyl acrylamides, such as N-octyl or N-butyl acrylamide, di(C2-C8 alkyl) amino methacrylates such as N,N-diethylamino methacrylate, acrylonitrile and methacrylonitrile, with an unsaturated organic ester, to high intensity radioactive radiation, such as gamma rays, of at least 10,000 R/hour for a time sufficient to increase the molecular weight of the resulting copolymer to at least 1,000 Staudinger. The ester may be an ester of acrylic, methacrylic, fumaric, maleic, citraconic, mesaconic, itaconic or aconitic acid, or may be vinyl acetate, butyrate or laurate or isopropenyl acetate. Preferred esters for use in the preparation of lubricating oil additives are the esters of branched chain alcohols produced by the catalytic carbonylation of C7 to C12 olefins with carbon monoxide and hydrogen, and the commercial mixture of alcohols obtained by the hydrogenation of coconut oil.  During the reaction the monomers may be dissolved in a solvent such as mineral oil, carbon tetrachloride or dioxane.  Copolymers prepared as above may be used as additives to paraffinic or naphthenic lubricating oils, greases, paraffin wax, diesel fuel base stocks, domestic heating oil, mineral seal oil and kerosene.  Oil compositions containing the copolymers may also contain other modifiers such as dyes, detergent inhibitors, corrosion inhibitors, anti - oxidants, tackiness agents, pour-point depressors such as waxnaphthalene and wax-phenol condensation products, and viscosity index improvers such as polybutenes and polyvinyl ethers.  Specification 802,082 is referred to.
Patent GB-611146-A (GB)
Title: Improvements in or relating to motor vehicle lighting
IPC: B60Q1/05
Filed: 1946-04-23
Abstract: 611,146. Vehicle lamp supports. WILLYSOVERLAND MOTORS, Inc. April 23, 1946. No. 12247. Convention date, April 23, 1945. [Classes 75 (iii) and 75 (iv)] [Also in Group XXXII] Motor-vehicle head lamps 17, 18 are mounted behind openings 11, 12, in the frontal surface of the vehicle body, and pivoted closures 23, 24, for the openings are movable downwards to expose the lamps by operating a knob 62 preferably disposed below the instrument panel 63. The knob 62 is connected by a wire 57 to a member 42 which is pivoted to a fixed bracket 41 and carries a pin 45 engaging a slotted arm 48 secured to a shaft 33 mounted in bearings on the body. The closures 23, 24 are carried by arms 27, 28 pivoted on brackets 30, 32, the arms 28 being connected by pintles 51 to the arms 48. A spring 66 attached to an arm 65 on the shaft 33 holds the closures 23, 24 in the open and closed positions. The closures 23, 24, are formed with peripheral flanges 26. The lower edges of the openings 11, 12, are formed by an escutcheon 15 formed at its centre with louvres for the passage of air to the radiator.
Patent GB-253334-A (GB)
Title: An improvement in mouth organs
IPC: G10D7/12
Filed: 1925-05-12
Abstract: 253,334. Hanson, A. E., and Field, R. May 12, 1925. Mouth organs.-To provide an accompaniment for the usual "blow" and draw" reeds c c<1>, the reed passages b, b<1> are extended rearwardly and communicate through mica flapvalves d, d' with two longitudinal chambers e, e<1>. The chamber e communicates by ducts g with key-controlled sets of bass or accompaniment " blow " reeds in the auxiliary box f situated at one end of the instrument, while the chamber e<1> communicates by ducts g<1> with similar " draw " reeds controlled by the same keys i', j<1>.
Patent GB-1179643-A (GB)
Title: Forming Articles having Decorative Surfaces
Inventor: HOLLAWAY ANTONY LYNN
IPC: B28B11/04
Filed: 1966-03-21
Abstract: 1,179,643. Moulding plastic material. PATENT HOLDINGS Ltd. 19 June, 1967 [21 March, 1966], No. 12318/66. Heading B5A. In a method of moulding a slab having surface areas of different appearance or colour, a stiff mix of resin and filler is first shaped, e.g. by extrusion, on to one or more portions of a surface and a layer of different material, e.g. cement, is cast about the mix on to the remainder of the surface. The mix may be shaped and applied to the surface via a stencil. The resin may be a polyester or an epoxy, and the mix may be applied to a porous backing sheet supported on a wire mesh which are located in a mould, so that when pressure is applied in the mould a surface configuration may be imparted to the slab. The mix may include aluminium, bronze or marble powder, and may include protruding wire loops which become embedded in the surrounding mass.
Patent GB-368576-A (GB)
Title: Improvements in coverings and linings for masonry
IPC: A43B17/10
Filed: 1931-04-27
Abstract: 368,576. Lathing. FALKE, P., Schmallenberg, Sauerland, Germany. April 27, 1931, No. 12397. Convention date, June 25, 1930. [Class 20 (iv).] Masonry is insulated by cardboard or like sheets a, to each side of which metal strips with holding bows c<1>, c<2> are fixed by opposing stamped out tongues. One side of the sheet is covered with mortar to the level of the bows c<2>, the whole is pressed on to a wall f covered with soft cement e<1>, and finally the exposed surface is covered with plaster e<2>.
Patent GB-584250-A (GB)
Title: Improvements in or relating to apparatus for measuring power and impedance in high frequency transmission lines
IPC: G01R21/00
Filed: 1941-09-25
Abstract: 584,250. Power, voltage, resistance, and reactance meters. CORK, E. C. Sept. 25, 1941, No. 12410. [Class 37] Apparatus for measuring high-frequency power comprises a number of voltage responsive devices spaced apart along the transmission line at a distance apart predetermined in relation to the wavelength of the high-frequency voltages transmitted along the'line in such a manner that an evaluation of the power may be effected by appropriately combining the indications of the devices. Three voltage-responsive devices may be spaced apart by a distance equal to one-eighth of the wavelength of the highfrequency voltage transmitted along the line or any odd integral multiple thereof. Alternatively two voltage-responsive devices may be employed, separated by a quarter of the wavelength. The voltage-responsive devices may be diodes, crystals, or thermo-couples, and are preferably capacity-coupled to the transmission line. For this purpose one of the terminals of each device may be provided with a probe that can be disposed in proximity to one of the conductors of a parallel wire system or can be inserted through an aperture in the outer conductor of a concentric line in proximity to the centre conductor, or through the tubular conductor of a wave guide. The outputs of the voltage-responsive devices may be applied to a cathode-rav tube so that the peak values of the potentials can be observed, from which peak power may be calculated. If the constants of the line and the length of the line between the load and the voltage responsive device nearest the load is known, the resistive and reactive components of the load may be calculated and any mismatch between the line and the load determined. Specifications 584,249 and 584,251 are referred to.
Patent GB-903621-A (GB)
Title: Improvements in or relating to hydraulic systems
IPC: F16H61/46
Filed: 1960-04-07
Abstract: 903,621. Hydraulic transmission of power. LINDE'S EISMACHINEN A.G. GES. FUR. April 7, 1960 [April 7, 1959], No. 12416/60. Class 69 (2). An hydraulic system comprises a device for controlling the supply of fluid-pressure to hydraulically-operated means, control means for controlling the operation of the device in response to a control force, and auxiliary means responsive to the pressure in the driving connection to the hydraulically-operated means to provide an auxiliary force to assist the control force. The system may form the hydraulic transmission of a vehicle and consist of an axial-piston pump 5 wiich is driven by an engine 2 and connected by pipes 6, 7 to one or more hydraulic motors driving the wheels. The pump is tiltable to positions 19, 20 for forward and reverse drive by a linkage 14, 15, 17 operated by foot-pedals 9, 10. The pipes 6, 7 are connected by pipes 21, 22 to the ends of a cylinder 23 having a piston 25 urged to a central position by springs 28, 29 and connected by a rod 26 to the linkage. When pedal 9 is moved to tilt the pump from its central position, in which no fluid is supplied to the motors, to position 19, fluid pressure is supplied through pipe 6 to the motors, the other pipe 7 serving to return fluid to the pump. The fluid pressure in pipe 6 acts through pipe 22 on the left-hand end of piston 25 so that a force is applied through rod 26 to the linkage to assist the force applied to the pedal. Operation of pedal 10 cause fluid pressure in pipe 7 which acts through pipe 21 on to the right-hand side of the piston 25 to apply a force to the linkage to assist the force applied to pedal 10. Throttles 30, 31 damp the movement of the piston 25.
Patent GB-515146-A (GB)
Title: Improvements in or relating to bituminous compositions and more particularly such as are adapted for use in the construction of roads, footways and the like
IPC: C08L95/00
Filed: 1938-04-26
Abstract: 515,146. Plastic composition. JONES, F. W. VALLE-. April 26, 1938, No. 12441. [Class 70] Bituminous compositions for making roads, footways, expansion joints for concrete &c: consist of bituminous material such as petroleum or tar pitch having a melting point of 140-250‹F. sawdust or other woody fibrous waste, and Portland or other calcaneous cement. Fillers such as sand or finely-divided stone or slag may be added.
Patent GB-580332-A (GB)
Title: Improvements in or relating to travelling grate for stokers
IPC: F23H11/04
Filed: 1944-06-30
Abstract: 580,332. Travelling grates. NEWTON, E. P. (Detroit Stoker Co.). June 30, 1944, No. 12513. [Class 51 (i)] In a travelling grate having firebars A each pivoted to pins F on propelling chains B, B' at one edge and overlapping an adjacent bar at the opposite edge, the bars are held in contact with each other during passage round the sprocket C by resilient means which engage the ends of the bars. These means comprise shoes J resiliently held in position by bolts K, K<1>, surrounded by springs K<2>, and having flexible extensions formed of pivoted links L which are yieldably pressed against the bars A by a weight N carried by the hinge M<3> of a pair of arms M<1>, M<2>, the latter being pivotally connected to the ends of the upper and lower links L respectively. The weight N may be replaced by a spring.
Patent GB-566993-A (GB)
Title: Improvements in the preparation of 2-amino-1,3,5-triazine
Filed: 1943-08-03
Abstract: 2-Amino-1.3.5-triazine is prepared by heating formyl guanidine with formamide in the presence of an alkali metal hydroxide until the mixture becomes wholly liquid.  The resulting reaction mixture may be distilled, when the amino triazine crystallizes from the distillate. The use of sodium and potassium hydroxides is specified.
Patent GB-567924-A (GB)
Title: Improvements in or relating to continuous envelope assemblies
IPC: B65D27/10
Filed: 1943-08-04
Abstract: 567,924. Envelopes. DAVIES, H. V. Aug. 4, 1943, Nos. 12617/43, 2823/44 and 12233/44. [Class 146 (ii)] In a continuous envelope assembly, in which the envelope openings are transverse to the length of the strip, the sealing-flap of each envelope is integral with the front or back of the preceding envelope, and the series is provided with side marginal feeder-bands for engagement by a feeding- device of the pin type, such as that described in Specification 408,125, [Group XVI]. In one arrangement, the series is formed from a single continuous strip, which is doubled on itself at intervals to provide the envelope pockets. Each envelope consists of a flap portion 11, Fig. 1, a front 12, and a back 13. The back is formed with side-wings 14 and is doubled on to the front and gummed thereto by means of the inturned wings. The front portions are each formed with perforated extensions 18, which, after the folding, form continuous feeder-bands. In another form, the assembly is built up from a. series of blanks, each comprising the back 22, Fig. 3, of one envelope and the flap 23 and front 24 of the next. The back portion of each blank is superimposed on the front of the preceding blank, which is adhesively secured thereto by means of foldable margins 25, 26. The web may be reversely folded about the lines 29, 30, so that the envelopes are staggered. The marginal feeder-bands may be in the form of separate continuous strips 31, Fig. 5, which are sandwiched between the superposed side-edges of the back and front portions of the blanks. The back 22 of one envelope may be separated from the flap 23 of the next by a narrow strip 33, which is doubled back and gummed to the base of the preceding envelope to serve as a reinforcement therefor. In another form, a single strip forms the fronts and flaps of consecutive envelopes, and separate blanks having inturned side and base wings are attached thereto to form the backs. The continuous strip is extended laterally to form the feederbands.
Patent GB-420787-A (GB)
Title: Improvements in means for coupling the drawing cylinders or rollers of preparing andspinning machines
IPC: D01H5/74
Filed: 1934-04-26
Abstract: 420,787. Coupling rollers of preparing and spinning machines. CASABLANCAS, F., 166, Calle de Fernando Casablancas, Sabadell, Barcelona, Spain. April 26, 1934, No. 12632. Convention date, May 13, 1933. [Class 120 (ii)] The drawing-rollers of preparing and spinning machines are coupled by means of pins 6 carried on flat surfaces 5 of spigots 3 so as to grip the surfaces and the surrounding wall of a co-operating socket when the spigot and socket are relatively rotated. The spigots and sockets may be formed on adjacent rollers, or spigots may be formed on a connecting-piece and engage sockets in adjacent rollers.
Patent GB-1425116-A (GB)
Title: Non-woven fabrics and method of making same
IPC: D04H3/16
Filed: 1973-03-16
Abstract: 1425116 Embossing E I DU PONT DE NEMOURS & CO 16 March 1973 [20 March 1972] 12689/73 Heading B6J [Also in Divisions D1-D2] A polyethylene film-fibril sheet is embossed over substantially the whole area of one or both surfaces in a pattern comprising 50 to 1000 fused regions/in.<SP>2</SP> which in the aggregate represent 3 to 25% of the total area of said one or said both surfaces, said embossed regions having an average optical transmission of at least 70%. Preferably the film fibril sheet is prepared by flash spinning a polyethylene solution into a low pressure region to form a 3 dimensional film fibril network which is spread laterally by a baffle, collected in a random overlapping on a moving belt and consolidated by cold calendering. The basis weight is 0À3 to 1À3 og/yd<SP>2</SP>. Such lightweight webs display variations in light transmission and reflection due to local nonuniformity in sheet base weight. The pattern of near transparent fused windows renders the visual appearance uniform and enhances the abrasion resistance of the sheet. The film-fibril sheet is embossed by passing it through the nip between a heated roll having 50-1000 bosses/in.<SP>2</SP>, the height of the bosses being at least 1À2 times the thickness of the sheet, and a back up roll having a Shore hardness of at least 70, the pressure being 5 to 16 pounds 1 linear inch times the per cent surface area comprised by the embossed regions. The heat and pressure fuses the fibrils in the embossed regions on the embossed surface without fusing the fibrils in the non-embossed regions. Preferably the embossed sheet is then passed through equivalent rolls to emboss the other surface. The embossing roll(s) are heated to at least 30 above the m.p. of polyethylene e.g. to 160C, by steam, oil or electrical resistance. The embossed regions may have the shape of crosses, dots, circles, triangles straight or curved lines and may be in regular or irregular array. Dimensions are specified in the examples. The sheet may be softened by repeated flexing under water, e.g. by means of a domestic washing machine, or by passing it over a series of rolls having knobs or bosses which stroke the fabric.
Patent GB-723314-A (GB)
Title: Improvements in or relating to abrading elements
IPC: B24D18/00
Filed: 1951-05-30
Abstract: 723,314. Compound sheet materials; multiple-ply paper. KLINGSPOR, C. May 30, 1951 [May 31, 1950; July 14, 1950], No. 12787/51. Drawings to Specification. Classes 96 and 140. Abrading elements are manufactured by impregnating a sheet of fibrous material of open structure, e.g. unsized or lightly sized paper, calendered plain paper, thick blotting paper, creped or crinkled paper, or textile fabric, with an adhesive capable of hardening under heat, coating the impregnated sheet with abrasive granules, superimposing several layers of the impregnated and coated sheet material, uniting the layer to form the abrading elements and hardening the adhesive under heat. Reinforcements, e.g. perforated sheet metal, textile fabric, wire mesh or the like may be arranged between the superimposed impregnated and coated sheets such reinforcement having previously been treated with an adhesive capable of hardening. Abrading elements of a particular shape are produced by employing correspondingly shaped presses, examples of which are described. Cylindrical abrading elements may be formed by winding the fibrous sheet material after impregnation and, if desired, application of an additional adhesive followed by coating with abrasive, on a mandrel in several layers and subjecting to heat treatment. In an example a crepe paper is saturated with, e.g., a solution of 100 parts of phenol formaldehyde resin resol in 60 parts of alcohol, in an impregnating device, the paper then squeezed out, dried for 3 to 4 hours, e.g. at 60‹ C., to remove the alcohol, after which it is coated with an emulsion of resin and animal glue, sprinkled with abrasive granules and dried for 3 to 4 hours at 60‹ C., whereupon it is cut into discs or rings which are placed in a press and one or more reinforcements of fabric, perforated sheet metal, wire gauze or the like which have been previously treated with an artificial resin, placed between the layers which are pressed at about 70 to 80 kg./cm.<SP>2</SP>, at 120‹ to 180‹ C.