baber/WOPTO huggingface dataset:
Patent GB-443940-A (GB)
Title: Improvements in frames for reciprocating engines, pumps or compressors
IPC: F04B39/12
Filed: 1935-06-26
Abstract: 443,940. Frames for reciprocating engines. STEVENS, C. H., 296, High Holborn, London. June 26, 1935, No. 18311. [Class 122 (iii)] [See also Group XXVIII] Relates to built-up frames for horizontal, vertical or inclined reciprocating engines, pumps, and compressors. Tension members a comprising narrow strap plates with the direction of their width parallel to the axis of the crank - shaft, extend in complete loops or slings round the cylinder head bolt plate b and around the crank - shaft bearing in spaced relationship to permit the removal of the crank-shaft endwise from the frame. Each cylinder and its crank are arranged between two tension members. The members a have projecting portions d which hook over the top surface of the plate b, and are positioned in slots in the edge thereof. Connection between the plates is effected by welding, or by angle irons and rivets or bolts. The connection is devoid of tensile stresses. Transverse plates e extend between the plates a, b and the bearing c, and the part beneath the bearing is provided with ribs f. Exterior stiffening plates g, ribs h, and horizontal seating-plates j spaced by ribs k and longitudinal plates k<1> to form girders, are also provided. Plates may be secured around the bottom at l to form a sump. A plate m is provided above the plate h and these are connected by light longitudinal plates n and transverse plates o to constitute a box girder. Plates p may be provided for crank-case doors q and to carry transverse plates r to support the cylinder liners. The cylinder securing - bolts pass through holes in the plate b, and may secure the covers. In a modification, the member a is curved instead of being flattened. In a single cylinder engine, there are normally two members a, or a single member of sufficient width to carry both crank-shaft bearings may be used.
Patent GB-985516-A (GB)
Title: Improvements in and relating to textile finishing
IPC: D06M15/423
Filed: 1961-05-19
Abstract: Textile finishing agents comprise an aqueous solution of a mixture of 2 to 5 parts by weight of a polyvinyl alcohol containing 0 to 20% by weight of unhydrolysed ester groups, calculated as polyvinyl acetate, and having a viscosity of 4 to 100 centipoises as a 4% aqueous solution at 20 DEG  C., 1 part by weight of an N-methylol compound and 1 to 5% by weight of a latent acid forming catalyst for the reaction between the polyvinyl alcohol and N-methylol compound. Specified N-methylol compounds are dimethylol urea, methylated methylol urea, dimethylol ethylene urea, dimethylol aniline, dimethylol benzidine, trimethylol melamine, trimethylated trimethylol melamine, and methylolated biuret, thiourea, guanidine, guanyl urea, melem and melam. Specified latent catalysts are magnesium chloride, zinc nitrate, b -chlorethylurea, methyl and butyl esters of phosphoric acid and N-benzoyl succinimide. The compositions may be used for impregnating cotton fabrics to improve the abrasion resistance and resilience thereof.  Specification 601,983 is referred to.ALSO:Textile materials have finisher applied thereto which finishers are the heat cured reaction products of compositions comprising 2 to 5 parts by weight of a polyvinyl alcohol containing 0 to 20% by weight of unhydrolysed ester groups, calculated as polyvinyl acetate, and having a viscosity of 4 to 100 centipoises in 4% by weight aqueous solution at 20 DEG C., 1 part by weight of an N-methylol compound and 1 to 5% by weight based on the N-methylol compound of a latent acid catalyst.  The finishers which are said to improve the abrasion resistance and also the resilience of the textile materials may be applied by impregnating the textiles with aqueous solutions of the compositions, e.g. by padding, and then air drying and heat curing.  Specified N-methylol compounds are dimethyl urea, methylated methylol urea, dimethylol ethylene urea, dimethylol aniline, dimethylol benzidine, trimethylol melamine, trimethylated trimethylol melamine, and methylolated biuret, thiourea, guanidine, guanyl urea, melem and melam.  Specified latent acid catalysts are magnesium chloride, zinc nitrate, b -chlorethylurea, methyl and butyl esters of phosphoric acid and N-benzoyl succinimide.  In examples cotton fabrics are impregnated by padding with aqueous compositions comprising polyvinyl alcohol, zinc nitrate and (2) trimethylated trimethylol melamine and (3) trimethylol melamine. Specification 601,983 is referred to.
Patent GB-764972-A (GB)
Title: Tension device for preventing snarling of yarn for knitting machines
Inventor: NEAL CHARLES
IPC: D04B15/38
Filed: 1954-06-23
Abstract: 764,972. Knitting-machines. SHEERLON, Ltd., [formerly ALEXANDRA MILL CO., Ltd.]. June 22, 1955 [June 23, 1954], No. 18361/54. Class 74 (2). A yarn package A for use in a knitting- machine is mounted on a base board a which also supports one or more rods b to which are attached a number of loops B of nylon or other synthetic fibre. The loops press against the periphery of the package and prevent the yarn on the package from snarling as it is withdrawn.
Patent GB-1096747-A (GB)
Title: Stress-wave thin-film memory
IPC: G11C11/14
Filed: 1966-04-27
Abstract: 1,096,747. Circuits employing bi-stable magnetic elements. RADIO CORPORATION OF AMERICA. April 27, 1966 [May 5, 1965], No. 18408/66. Heading H3B. A stress-wave thin-film memory device includes a stress-wave conductor 10 on one side of which are deposited discrete anisotropic magnetic thin film elements 20, 22, having their easy axes at an angle (preferably at least 30 degrees and less than 90 degrees) to the direction of particle movement induced by the stress waves. A write conductor 24 is deposited on the opposite surface of stress conductor 10 and lies longitudinally of the latter, and sense conductors 30, 32 are provided above the thin film elements, lying transverse to the stress conductor and out of contact with the thin film elements. Passage of the stress wave causes the magnetization vector of a thin film element to be rotated from easy axis EA to direction 50, non-destructively inducing an output in the sense conductor. By passing a current through write conductor 24 simultaneously with passage of the stress pulse past a thin film element the magnetization vector may be rotated to direction 56, more than 90 degrees removed from its original direction, to write a " 1." A current in the opposite direction opposes the stress-induced rotation and writes a " O." The write current is terminated slightly later than the termination of the stress pulse in the vicinity of a thin film element. Sense conductors 30, 32 may be omitted and the sense amplifier connected to the write conductor.
Patent GB-568483-A (GB)
Title: Improvements relating to oil retaining and dirt excluding seals for use in machinery
IPC: F16J15/16
Filed: 1943-11-06
Abstract: 568,483. Oil seals. SUPER OIL SEALS & GASKETS, Ltd., and MOXON, L. A. Nov. 6, 1943, No. 18463. [Class 122 (v)] An oil seal for bearings &c. comprises an annular rigid housing a containing a pair of flanged rubber &c. rings c, i, spaced apart by flanged rings f, h, and a partition ring g, to form a chamber to which grease may be supplied, the flanged portions of the rubber rings being of semicircular section and provided with ribs d3, m, pressed on to the shaft &c. by springs d, k. The end walls of the housing are curved to support the semicircular parts of the packing rings.
Patent GB-682180-A (GB)
Title: Improved method of copolymerization and products obtained thereby
Filed: 1949-07-13
Abstract: In the copolymerization under reflux in a solvent in which the copolymer is insoluble, e.g. water and in the presence of a catalyst of a mixture of compounds containing the group CH2=C< having different vapour pressures and different rates of acceptance into the copolymer molecules, the monomer of greater vapour pressure having at the boiling point of the solution a vapour pressure and solubility such that a detectable change in temperature results when 0.005 to 0.1 mols. per litre of solution are vaporized, a mixture of the monomers in a predetermined ratio is continuously added at such a rate as to maintain the boiling temperature and rate of reflux constant.  Suitable monomeric mixtures are acrylonitrile with methyl acrylate or methacrylate, styrene, vinyl acetate, vinyl pyridines, acrylamide, substituted acrylamides or N-vinyl carbazole; vinyl acetate and 2-vinyl pyridine; methyl methacrylate and styrene; methyl acrylate and acrylamide, the first-named being the "control" monomer. Methacrylonitrile may also be used as the "control".  Suitable catalysts are potassium and ammonium persulphates and sodium perborate with sodium bisulphite as activator.  The initial monomers are added to the water in a ratio yielding a copolymer of the desired composition and equilibrium of the refluxing reaction mixture is maintained by adding the monomers in a ratio equivalent to that of the first copolymer formed or that accepted by the copolymer. Copolymer may be continuously withdrawn and any water or catalyst removed therewith may be made up.  Polymerization is terminated by adding an inhibitor, such as hydroquinone, by filtering-off the product and rapidly washing or by pouring the reaction mixture into a large volume of water.  The products are of uniform composition and molecular weight.  Examples describe the preparation of copolymers containing (1) 90 per cent acrylonitrile and 10 per cent vinyl acetate; (2) 90 per cent acrylonitrile and 10 per cent styrene; (3) 85 per cent acrylonitrile and 15 per cent acrylamide; (4) 80 per cent acrylonitrile and 20 per cent N-vinyl carbazole.  The products of examples (2) and (3) formed clear solutions in dimethyl formamide from which fibres were spun into a setting bath of isopropanol and stretched.  After washing and drying the fibres were re-stretched in heated air.  Specifications 593,292 and 682,181 are referred to.
Patent GB-678887-A (GB)
Title: Liquid fuel injection pumps for internal combustion engines
Inventor: MURASZEW ALEXANDER
IPC: F02M41/06
Filed: 1950-07-25
Abstract: 678,887. Fuel-injection pumps. C.A.V., Ltd. May 23, 1951 [July 25, 1950], No. 18534/50. Class 102 (i) In a fuel-injection pump for a multi-cylinder internal-combustion engine, a single cylinder pump is provided with the usual control edges g on the piston b and the delivery valve n is cylindrical in form and has a conical extension o engaging the outlet m from the pump cylinder. The valve is loaded by a spring y and is rotated by a tongue and groove coupling x, w, through gearing u, t and s. The valve has an axial groove p that communicates with a chamber z, into which the fuel flows when the valve r is lifted, and also with ports g leading to the engine cylinders. The closing of the valve creates a small suction in the ports q to prevent drip at the injectors. In a modification the seat o is replaced by a stop. The pinions u, t may be used as a gear pump to feed the injection pump.
Patent GB-827895-A (GB)
Title: Semen collecting device
Inventor: MILLAR PETER GORDON
IPC: A61B10/00
Filed: 1957-06-13
Abstract: 827,895. Veterinary appliances. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 29, 1958 [June 13, 1957], No. 18646/57. Class 81 (2). A semen-collecting device comprises a sheath and a collecting chamber, both in contact with a common heating jacket. In one form described the appliance has a slighty flexible tubular body 1 of nylon or similar material and the sheath 10 extends from within a rigid tube 4, attached to the end wall 3, to the open end of the body. A collecting device, such as a glass tube 15 in a holder 14, is placed in the further end of the tube 4 and retained by screwing a head 13 on to a threaded extension 12. Water or other warming fluid is introduced into the space around the sheath through an orifice closed by a screw plug 17, and its temperature may be indicated by a thermometer 23 having a dial 21 visible through a window 24 and through the head 13 if this is of transparent material. Preferably a cushion device 11 is fitted at the entrant end of the appliance and, if desired, the collecting tube may be set radially to the tube 4.
Patent GB-1114640-A (GB)
Title: Improvements in or relating to a method of impregnating sintered matrixes for electrodes
IPC: H01M4/28
Filed: 1967-04-24
Abstract: 1,114,640. Cadmium electrodes for alkaline batteries. SVENSKA ACKUMULATOR AB. JUNGNER. 24 April, 1967 [27 April, 1966], No. 18748/67. Heading H1B. Sintered matrixes for negative electrodes for alkaline storage batteries are impregnated with an aqueous solution of cadmium nitrate and an organic cadmium salt and thereafter heated to such a temperature that the water evaporates and the salts are decomposed. The organic salts specified are cadmium formate and acetate. The impregnation is preferably performed at 70-90‹ C. and the decomposition at 300-500‹ C. The decomposition of the organic salt produces a reducing atmosphere so that a simple oven may be used for the decomposition.
Patent GB-671201-A (GB)
Title: Improvements in or relating to gas generating apparatus
IPC: B01J7/02
Filed: 1950-07-27
Abstract: 671,201. Fumigating apparatus. BRAKE L. H. July 27, 1950 [Aug. 3, 1949; Dec. 6, 1949 ; July 20, 1950], No. 18839/50. Class 81 (i). [Also in Groups XI, XII and XXVIII] Apparatus for generating a fumigating gas comprises a closed vessel 22 which is supplied with a volatile liquid fumigant througli a pipe 22b controlled by a needle valve 24 actuated by a float 23. Air, which is supplied by a bellows pump 1 (see Group XXVIII) through a pipe 17 and an annular distributing passage 21 perforated on its underside, passes through the liquid to produce the gas which is delivered through a pipe 25. The richness of the gas is controlled by a bye-pass pipe 34 having a thermostatically or manually operated valve 34a and an automatic pressure regulating valve 34b. The vessel 22 is packed with a flocculent material such as steel or brass wool or cotton waste to produce a tortuous passage for the air through the liquid. The Specification as open to inspection under Sect. 91 refers to the fumigant being supplied in flake or granular form and the float valve being then omitted. This subject-matter does not appear in the Specification as accepted.
Patent GB-197582-A (GB)
Title: Improvements in and relating to reels or drums for wire or the like
IPC: B65H75/14
Filed: 1922-07-11
Abstract: 197,582. Heaton, L. July 11, 1922. Reels.-A reel or drum for wire or the like comprises a barrel B, side discs A having out-turned flanges A', and central bossed stampings s C arranged for the reception of a strengthening tube T. A friction-ring F is provided, and the parts may be welded, brazed or soldered together.
Patent GB-429658-A (GB)
Title: Apparatus for the counting of train axles
IPC: B61L1/16
Filed: 1934-06-27
Abstract: 429,658. Counting-apparatus for train axles. VEREINIGTE EISENBAHN-SIGNALWERKE GES., Siemensstadt, Berlin. June 27, 1934, No. 19010. Convention date, Oct. 19, 1933. [Class 105] [See also Group XXXV] Counting-apparatus for train axles has a step-by-step motor armature turned 180‹ by an axle causing the operation of a single contact E<1> which in its operated position causes a current to flow through windings 1 to a condenser 14 and to windings 2 in parallel with the condenser so that the current in windings 1 is at first the larger current and so causes the armature to lie across the windings 1 thus giving a clockwise movement; when the condenser is fully charged the currents in the windings 1, 2 become equal. When the contact E<1> returns to its unoperated position the con. denser 14 discharging through the windings 2 causes the armature to lie across the windings 2 and on this current dying away the armature moves to lie across the permanently magnetized poles 3. The contact E<1> is operated by a relay E the energization of which is sufficiently prolonged by providing a series of rail contacts 7, 8, 9. A similar relay A at the leaving point controls by its contact A<1> the supply of current to the windings 1, 2 in a corresponding manner but causes a reverse rotation of the armature. Specification 401,987 is referred to.
Patent GB-1071240-A (GB)
Title: High temperature stabilization of certain acrylic elastomers
Inventor: WALDRON THOMAS FREDERICK
IPC: C08K5/41
Filed: 1966-04-29
Abstract: Vulcanized acrylic elastomers having increased resistance to heat are prepared by heating a composition comprising (1) a copolymer of at least 70% by weight of a C1-C8-alkyl acrylate and vinyl chloroacetate, the copolymer containing 0.4 to 3.0% by weight of chlorine, and (2) 0.25 to 10% by weight of the copolymer of at least one sulphate of the formula R-O-SO2-O-M wherein R is C7-C20 alkyl and M is an alkali metal or ammonium.  The copolymer may contain up to 15% by weight of an additional monomer component, e.g. acrylonitrile. Vulcanization is generally effected in the presence of an ammonium salt of a weak acid, e.g. benzoic, optionally together with an alkyl or aryl halide, e.g. lauryl bromide.  The compositions may contain additional ingredients such as pigments, e.g. carbon black, antioxidants, e.g phenyl-b -naphthylamine, lubricants, and stearic acid or its sodium salt.  The products are suitable for forming articles such as engine gaskets.
Patent GB-668801-A (GB)
Title: Improvements in and relating to means for handling a life boat or like safety appliance by at least one luffing davit
IPC: B63B23/04
Filed: 1950-07-31
Abstract: 668,801. Davits. SCHATS DAVITS, Ltd., and SMIRNOFF. V. July 31. 1950, No. 19088/50. Class 115. A luffing davit has a straight arm 7 inclined so that its head 19 comes vertically over the hook in the boat. The strut 11 for supporting the davit arm may be integral with or separate from the arm.
Patent GB-444879-A (GB)
Title: Improvements in or relating to internal combustion engines of the liquid fuel injection compression ignition type
IPC: F02B19/08
Filed: 1934-06-29
Abstract: 444,879. Oil engines. RICARDO, H. R., 21, Suffolk Street, Pall Mall, London. June 29, 1934, No. 19221. [Class 7 (iii)] In a compression-ignition engine air is forced from the engine cylinder into a combustion chamber, which is of circular crosssection in planes at right angles to an axis, through one or more restricted passages arranged so that the air enters the chamber with an axial and a tangential component and rotates about the axis. The maximum diameter of the chamber is at least 50 per cent greater than its length and a fuel injector delivers into the chamber approximately at right angles to the axis. As shown in Fig. 1, the chamber which has fiat end walls is formed partly by a pocket D in the cylinder head and partly by a recess E<2> in a heat-insulated plug E in which the passages E<4> are formed. The axis of the fuel jet delivered by the injector G may have a small component in or against the direction of rotation of the air. In the modified construction shown in Fig. 3, the combustion chamber is formed by recesses J<2>, J3 in plug-like members J, J<1> which are secured in the cylinder head by bolts J<9>. The passages J<4>, J<6> are formed in the lower member J whilst the member J<1>, which carries an igniter K to facilitate starting, is provided with water cooling passages J<6> and may be separated from the member J by an air gap. The upper part of the chamber may contain a heat-insulating liner. Further modifications are described in which (1) either of the recesses J<2>, J<3> is frustoconical; (2) the side wall of the chamber between the end wall and the part of maximum diameter is concave, conical, polygonal, or partly concave and partly flat; and (3) the portion of the air charge at the end of the compression stroke contained in the combustion chamber and the passages in the plug does not exceed 50 per cent by volume of the total air charge.
Patent GB-1115672-A (GB)
Title: Improvements in or relating to latches for ladders
Inventor: LIEBLEIN GEORGE
IPC: E06C7/06
Filed: 1965-05-06
Abstract: 1,115,672. Ladders. PRECISION LIGHTWEIGHT ENGINEERING Ltd. 2 May,, 1966 [6 May, 1965], No. 19222/65. Heading A6L. A telescopic ladder is provided on the upper ladder section with a spring-pressed pivoted lach 4 to engage one of the rungs B of the lower ladder section. A gravity balanced member 7 pivoted on the latch 4 closes the mouth of the latch and prevents it from engaging a rung when the upper section is being lowered.
Patent GB-714655-A (GB)
Title: Improvements in magnetic quasi-elastic devices and applications thereof
IPC: H01F7/02
Filed: 1952-07-30
Abstract: 714,655. Valves. SCHOENGRUN, E. R. July 30, 1952 [July 30, 1951 ; Oct. 24, 1951 ; Dec. 26, 1951 ; July 18, 1952], No. 19286/52. Class 135. [Also in Groups XXI and XXXV] The springs normally used in valves are replaced by permanent magnets, one pole of one of the magnets, always lying between the poles of the other magnet to prevent demagnetization. Fig. 1 shows the invention applied to a closure valve for accumulators &c. which normally allows ventilation but when tilted shuts to prevent loss of the liquid in the container. In the normal, open position shown, the movable valve plunger 5 is pressed down by a heavy ball 11, the ventilation taking place through channels 15 in front of and behind the plunger. When the valve is tilted, the ball takes up a position 11a thus allowing the plunger to rise under the action of the magnets so that its conical shoulder portion engages the rim 7 of an opening in a washer 4, thus preventing passage of the fluid. In a modification (not shown), the stationary magnets 14 are not axially but radially disposed. Fig. 5 shows the same principle applied to a safety valve in which the pressure at entrance 31 is applied to a diaphragm 26. A valve washer 29, normally pressed against a seating 30 by magnets 17 situated inside an annular magnet 34, is depressed by excessive pressure on the diaphragm to open the valve.
Patent GB-352225-A (GB)
Title: Improvements in grabs
IPC: B66C3/08
Filed: 1930-06-25
Abstract: 352,225. Grab-buckets. BARNARD, D. J., 8, Strathfield Gardens, Barking, Essex. June 25, 1930, Nos. 19345/30 and 11577/31. [Class 78 (iv).] A single rope ring discharge grab has means for maintaining the bucket sections in the. open position and for taking the stresses tending to close them, comprising one or more vertically disposed rods carried by a part pivotally mounted on the head of the grab and arranged to coact with means carried by the cross-beam. The hauling rope 29 passes through the tipping ring 28, round a sheave 31, upwardly and over a sheave 32, downwardly and around a sheave 33, upwardly and over a sheave 34 and finally downwardly to the crossbeam 23. The thimble 30, Fig. 6, in the grab-head 27 carries a slidable sleeve 37 which is slotted to engage the lower ends 39 of the ring-engaging hooks 36. The lower end of the sleeve has angular extensions, Figs. 8 and 9, coacting with a narrow angularly movable plate 42 carrying downwardly extending rods 47. The cross-beam 23, Fig. 5, has a housing 51 carrying two upwardly-extending rods 58 coaxially disposed with respect to the rods 47 when the grab is supported by the ring 28. In operation, assuming the grab to be open and supported on the ring there is a gap 47<1> between the ends of the rods 47, 58. On pulling in the hauling rope the gap 47<1> is closed and the rods take the vertical stress. Further hauling in raises the grab and the hooks 36 are detached by the angular extensions 41 bearing against the plate 42 and raising the sleeve 37. On lowering, the housing 51 drops, the rods are disengaged and the sleeve falls causing the extensions 41 to turn the plate 42 so that the rods are no longer in alignment. On hauling in, the rods 58 pass into recesses 60 in the thimble and the rods 47 pass through the cross-beam and the grab is closed. In a modification, one depending rod is used, the sleeve is replaced by a cut-away sliding block coacting with a pivoted arm carrying the rod which is aligned or disaligned with an aperture in the cross-beam housing as required. In another modification, the rod takes the form of an I-beam coacting with a similarly shaped aperture in the cross-beam housing.