baber/WOPTO huggingface dataset:
Patent GB-1083987-A (GB)
Title: Machine which operates outside the train clearance cross-section and cleans railway ballast beds
IPC: E01B27/10
Filed: 1965-02-12
Abstract: 1,083,987. Screening apparatus. F. PLASSER [trading as FRANZ PLASSER BAHNBAUMASCHINEN]. Feb. 12, 1965 [March 4, 1964]. No. 6178/65. Heading B2H. [Also in Division El] A ballast cleaning machine operating outside the track clearance area has a cleaning chain 1 running below the track 17 and an endless belt elevator 5 provided with flights 8, the lower upwardly moving elevator run travelling over a screen surface 9. The flights are resilient and pass the ballast over the screen 9 such that fines drop onto the sub-grade 15 and the cleaned ballast passes to a horizontally pivoted conveyor 11 to distribute the ballast into the central region of the rail bed.
Patent GB-976302-A (GB)
Title: Polypropylene compositions
IPC: C08L23/12
Filed: 1961-02-21
Abstract: A composition comprises polypropylene + 2 to 50% of a modifier selected from (a) polystyrene or a copolymer of styrene with an alkyl fumarate, a vinyl ester or an acrylonitrile, (b) a homo- or co-polymer of a vinyl ester <FORM:0976302/C3/1> wherein R is alkyl, cycloalkyl or aryl and R1 is H or Me, (c) a homo- or co-polymer of a vinyl or vinylidene halide, (d) a polyether glycol [e.g. poly(ethylene, propylene or ethylene/propylene) glycol], (e) a cellulose ester of one or more carboxylic acids [e.g. cellulose acetate, butyrate acetate/butyrate, acetate/isobutyrate, acetate/propionate, formate, tributyrate, trilaurate and dibenzoate], or (f) a cellulose ether [e.g. methyl or ethyl cellulose, propyl, butyl or benzyl cellulose].  Numerous examples of each type of modifier are listed.  The compositions have high impact strength and find application as rollers, bearings and gears.
Patent GB-1432762-A (GB)
Title: Die casting or injection moulding method and apparatus
IPC: B22D17/32
Filed: 1972-02-10
Abstract: 1432762 Injection moulding machines BNF METALS TECHNOLOGY CENTRE 8 May 1973 [10 Feb 1972] 6260/72 Heading B5A [Also in Division B3] In a die casting or injection moulding process in which at least one core 10 is removably located in the die cavity, means 14 senses when the temperature of the cast material falls to a predetermined value and generates a signal, this signal being used to initiate removal of the core from the cavity. The signal may also be used to initiated the die opening sequence after a set time delay. Alternatively, the core withdrawal movement may be used to trigger a limit switch which initiates die opening directly or after a set time delay. In another embodiment a separate sensed temperature is used to initiate die opening. More than one temperature sensor may be provided. The circuit for controlling operation of the machine is similar to that disclosed in Specification 1,288,037 and is such that initiation of the core removal step takes place only if the temperature sensed by the means 14 rises above and then falls below the said predetermined value. Alternatively, a timing device 15 may be used to prevent premature removal of the core. Reference has been directed by the Comptroller to Specification 1,288,037.
Patent GB-957571-A (GB)
Title: Improvements in and relating to poultry enclosures
IPC: A01K31/16
Filed: 1962-02-19
Abstract: 957,571. Poultry houses. P. G. WILLIAMS. April 26, 1963 [Feb. 19, 1962], No. 6261/62. Heading A1M. A poultry enclosure has an open-work flooring adapted to rest on an earth base or deep litter base, and elevating means for tilting the flooring so that eggs laid thereon roll to one end of the flooring. The flooring comprises one or more units 8 each consisting of wires 11 which alternate with the spaced slats 9 of a framework, the front ends of the wires and slats being anchored to a plank supported on pins 13 rotatably mounted in the end walls 3 of the enclosure. The rear ends of the slats are attached to a cross-bar 14 which carries eyes 15 through which the wires 11 pass upwardly and are connected to a pivoted lever 16. On depression of lever 16 the wires 11 are first tensioned and then cause the flooring to pivot about pins 13 so that the eggs roll into a receiver 18. The lever 16 may be actuated by a foot pedal 17, or by a pneumatic or hydraulic ram or jack or by a solenoid in which case automatic timing means for tilting the floor at intervals may be provided. The elevating means may also comprise a winch to the drum of which the wires are connected. According to the Provisional Specification the egg-receiver may comprise a pivoted or flexible flap or a paddle wheel which is displaced by the egg as it rolls into a holder or conveyer.
Patent GB-114357-A (GB)
Title: Improvements in and relating to a Method of Operating Internal Combustion Engines, and Apparatus therefor.
Inventor: PULLIN CYRIL GEORGE
IPC: F02B1/00
Filed: 1917-05-03
Abstract: 114,357. Pullin, C. G. May 3, 1917. Regulating; valves.- In a two-stroke-cycle engine to maintain the correct proportion between the fuel and air at all loads, air release ports I, which are more or less uncovered by a controlling valve k, are located, as shown in Fig. 2, so as to register with a port h in the gudgeon H when the piston approaches the end of its compression stroke. The gudgeon is oscillated by the piston-rod and its port h registers at intervals with passages F in the piston. The front end of the piston may compress the working charge, and, in the construction shown in Fig. 2, the piston compresses air in the crank case.
Patent GB-850196-A (GB)
Title: Oil bath solenoid unit
Inventor: JENCKS HOLLIS WELLS
IPC: H01F7/16
Filed: 1956-10-01
Abstract: 850,196. Electromagnets. DETROIT COIL CO. Oct. 1, 1956, No. 6293/59. Divided out of 818,723. Drawings to Specification. Class 35. [Also in Group XXIX] The subject-matter of this Specification is substantially the same as that described in Specification 771,404.
Patent GB-280770-A (GB)
Title: Improvements in and relating to the drying of leather, hides, skins and the like
IPC: C14B1/58
Filed: 1927-03-07
Abstract: 280,770. Walsh, V. G. March 7, 1927. Drying by processes special to leather and hides; removing excess of tanning agents. - Leather is dried from the flesh sides only the grain side being kept in contact with a slab or another piece of leather to prevent evaporation. The grain surface may be first washed over with a solution of gelatine to precipitate any superficial excess of tan and the leather is then stacked with alternate layers of anhydrous sodium sulphate spread on the flesh side whereby the excess tan is withdrawn from the leather and the formation of a deposit of tanning material and subsequent oxidation thereof and discolouration of the grain side is prevented. Sand may be mixed with the sodium sulphate in order to facilitate removal after the drying is completed. This drying method may be applied to untanned hides.
Patent GB-525711-A (GB)
Title: Improvements in and relating to automobiles
IPC: B60K17/34
Filed: 1939-02-27
Abstract: 525,711. Motor-vehicle axles and driving gear. TRIGGS, W. W. (Maschinenfabrik Augsburg-Nurnberg Akt.-Ges.). Feb. 27, 1939, No. 6385. [Classes 79 (ii) and 79 (iv)] A vehicle in which all four wheels are driven but the front wheels only are steered is characterized in that the front and rear axles 2, 3 are similar except for the wheel carriers 4, 5 which are connected to the axles by flanges 12, 13, the front wheel carriers containing in known manner the steering pivots and universal joints for the driving shafts. The axles may comprise casings containing the driving shafts, as shown, or they may be comprised of solid beams, the driving shafts in the latter case not being co-axial with the road wheels which are driven from the shafts through spur-gear reducing trains. The engine 14 drives the axles through change-speed gear 15, shaft 16, a gear-box 17 and shafts 18, 19.
Patent GB-1166443-A (GB)
Title: Ethylene Copolymers and Laminates made therewith
Inventor: PRIDDLE JOHN EDWARD
IPC: C08F10/00
Filed: 1966-02-14
Abstract: 1,166,443. Glass laminates. IMPERIAL CHEMICAL INDUSTRIES Ltd. 26 Jan., 1967 [14 Feb., 1966], No. 6389/66. Heading B5N. [Also in Division C3] Glass laminates comprise at least one layer of glass adhered to a layer of a novel ethylene copolymer (see Division C3) which comprises at least 35% by weight of ethylene units, units of one or more hydroxy or epoxy aliphatic or cycloaliphatic monoesters of acrylic or methacrylic acid, in which the (cyclo)aliphatic radical consists only of C, H and O and contains not more than 6 carbon atoms, and 0-55% by weight of units of a further comonomer having one ethylenic double bond which is an ester of acrylic or methacrylic acid (e.g. an alkyl ester) or a vinyl ester (e.g. vinyl acetate). The hydroxy or epoxy ester may be a hydroxyalkyl or glycidyl acrylate or methacrylate. Generally, the copolymer layer is present as an interlayer between sheets of glass or between a sheet of glass and a transparent or translucent, substantially rigid plastics material, e.g. polymethyl methacrylate, rigid polyvinyl chloride, polystyrene or a polycarbonate. Such a laminate can be prepared by sandwiching the copolymer layer between two sheets of glass or between a sheet of glass and a sheet of the plastics material, and heating the assembly to a temperature above the melting point of the copolymer (e.g. 110-130 C.) for a sufficient time and at a sufficient pressure to effect bonding; the copolymer layer may be ridged or roughened to prevent blocking. In one particular embodiment, the assembly is placed in a flexible plastics or rubber bag which is then evacuated, and the bag and the assembly are heated in an oven or, preferably, in an autoclave at elevated pressure; the assembly is then cooled before being removed from the bag. The glass surfaces to be bonded may, if desired, be pre-treated with an adhesion promoter, e.g. silanes of the type described in Specification 1,095,700. In examples, the copolymer is admixed with 4,4<SP>1</SP>- thiobis - (3 - methyl) - 6 - t. - butylphenol), as antioxidant, before being formed into a film layer. The glass laminates are useful as safety glass in such applications as vehicle windscreens, bandit- or bullet-resistant windows or display cases, doors and wall panels in buildings, and transparent or translucent light fittings.
Patent GB-1457347-A (GB)
Title: Production of yeast cells
IPC: C12N1/16
Filed: 1974-02-12
Abstract: 1457347 Yeast AJINOMOTO CO Inc 12 Feb 1974 [14 Feb 1973] 06418/74 Heading C6F Yeast is cultivated in an acidic or neutral aqueous culture medium containing ions of at least one alkanoic acid having 2-9 carbon atoms as the major carbon source, a nitrogen source, inorganic salts and minor organic nutrients. Preferred are propionate and n-butyrate ions as the carbon source and saccharomyces, pichia, candida, hansenula, debaryomyces, trichosporon, endomycopsis and kluyveromyces as the yeast genera. Culturing is preferably performed at 25-34C.
Patent GB-293284-A (GB)
Title: Improvements in and relating to method and apparatus for blowing gas generators
IPC: C10J1/213
Filed: 1928-03-01
Abstract: 293,284. James, R. W., (Semet-Solvay Engineering Corporationj. March 1, 1928. Producers; producer plant. - In the water gas process the air for the blowing period is supplied by the use of a comparatively small volume of air at high pressure, this air drawing in atmospheric air by an injector action. An air pump 1 forces air under pressure into a tank 2 from which pipes 3, 5, 10, 13 lead to injectors 8, 16 in the generator A and carburettor B and to a nozzle in the conduit D which assists the draught through the generator by reducing the pressure at its outlet. The pump 1 may be kept working continuously, but during the " blow" the valves on the pipes controlling the injectors are opened, and the high-pressure air used as above stated. This method prevents explosions in the air-inlet pipes.
Patent GB-946402-A (GB)
Title: Single and multi-wired electric cables
IPC: H01B7/02
Filed: 1960-02-24
Abstract: 946,402. Cables. G. KROMBERG, [trading as KROMBERG & SCHUBERT]. Feb. 24 1960 [Aug. 12, 1959], No. 6446/60. Drawings to Specification. Heading H1A. A cable comprising one or more conductors individually insulated with heat-resistant silicone rubber and enclosed in an abrasionresistant sheath, of e.g. P.V.C., is provided with one or more galvanized steel strain wires individually covered with P.V.C. or other suitable material to prevent the strain wires from chafing the conductor insulation, the strain wires being also embedded in the external sheath.
Patent GB-329058-A (GB)
Title: Improved fire guard
IPC: A47G5/04
Filed: 1929-02-28
Abstract: 329,058. Fursier, W. E. Feb. 28, 1929. Fireguards.-In a fireguard of the type comprising a displaceable, flexible, openwork metallic screen e, the suspension and operating mechanism is entirely enclosed in a surrounding rectangular frame a, and a marginal bar f on the screen engages in an interior groove or slide in the frame. The form shown in Figs. 1 and 2 is portable, and the screen e is suspended from a roller d controlled by a counterbalance g, by a hand winch or the like, or by a spring or springs. The screen may be positively held in lowered position by engagement of the bottom bar f with slots in the frame, or by thumb-screws or the like on the bar f co-operating with a slide at each side of the frame. The guard may be positioned in front of the fire by a hook device engaging a chain or other fastening fitted on the back wall of the fireplace. The frame a may alternatively be built as a fixture in the fireplace. Fig. 6 shows a form in which the screen e is suspended curtainwise by rings i sliding on a rod j and is provided with side bars f<1>; in a modification the rings are replaced by runner wheel attached by links to the screen.
Patent GB-139791-A (GB)
Title: Improvements in means for packing bearings
IPC: F16C33/72
Filed: 1920-03-03
Abstract: 139,791. Schweinfurter Pracisions- Kugel-Lager-Werke Fichtel & Sachs. Aug. 20, 1917, [Convention date]. Oil, retaining. - To prevent the oil in a ball bearing from being thrown on to packing-material 11 which surrounds the shaft, one or more disks 14 separated by distance rings 15 are interposed between the balls and the cover 9 of the bearing. The disks are held in place by a spring 16 or by screws &c., and are perforated in the lower part at 17 to enable oil which drains down to return to the bearing.
Patent GB-1023818-A (GB)
Title: Servo systems
Inventor: WILLIAMS JOHN HALL
IPC: F15B9/17
Filed: 1964-02-17
Abstract: 1,023,818. Fluid-pressure servomotor system. BOULTON PAUL AIRCRAFT Ltd. Feb. 16, 1965 [Feb. 17, 1964], No. 6538/64. Heading G3P. A fluid pressure servosystem comprises solenoid valve 11, 12, the fig. (not shown), the actuation of which admits fluid pressure to a chamber 15 or 16 to move a spool valve 17 from its central position to correct chambers 35, 36, at opposite sides of a piston 37, to supply and exhaust. The rod 39 of piston 37 carries an arm 40 to which is pivoted a bell-crank lever 41. Members 44, 45 at opposite ends of a cylinder 38 support an axially fixed but rotatable shaft 46 which is internally spliced to receive an externally spliced shaft 47. The end of the shaft 47 is axially fixed but rotatable in the arm 40 and a lever 48 fixed to the shaft 47 is connected by a link 50 to the end of an arm 52 of the bell-crank lever. A second lever 53, fixed to the shaft 46 is connected by a link 55 and lever 57 to a valve 58 which controls the supply and exhaust of fluid to the opposite ends of a cylinder 64 having an output piston rod 65. The rod 65 is connected to the operated member and to a lever 68 fixed to a sprocket wheel 70. A chain 71 passes round the wheel 70 and a wheel 72 and carries a pin 73 which engages a slot 74 at the end of the other arm 75 of the bell-crank lever 41. In operation, movement of the piston 37 in response to actuation of one of the solenoid valves 11 or 12 causes rotation of the bell-crank lever 41 about pin 73 to move link 50 to rotate lever 48 and hence shaft 47. Rotation of the shaft 47 rotates the outer shaft 46 and hence lever 53 to actuate the valve 58 to move the output member. Movement of the output member rotates wheel 70 to move the chain 71 and pin 73 to rotate the bell-crank lever 42 until the valve 58 is recentred. The valve 58 may be replaced by a variable-delivery pump.
Patent GB-525761-A (GB)
Title: Improvements in or relating to rotary compressors
IPC: F04C18/08
Filed: 1939-02-28
Abstract: 525,761. Alloys. WATSON, F. (Aktiebolaget Milo). Feb. 28, 1939, No. 6562. [Class 82 (i)] [Also in Group XXVI] A rotary compressor has parts made of a metallic material having a co-efficient of thermal expansion considerably lower than that of iron in the range 50‹-300‹C. The material may be a nickel-iron alloy, 32-40 per cent. nickel. Specifications 464,475 and 523,741, [both in Group XXVI], are referred to.
Patent GB-235317-A (GB)
Title: Improvements in or relating to bedsteads, resilient mattresses, couches, divans, seats and like resilient supports
IPC: A47C23/05
Filed: 1924-03-14
Abstract: 235,317. Heal, A., and Thoday, L. March 14,1924. Spring surfaces.-A metal mattress or like frame is constructed of upper and lower sets of tubular side and end members spaced by vertical struts and having a supporting surface secured to each of the sets. The mattress is double-sided, reversible and invertible, with surfaces formed of cable or cord, preferably of zebra cord, as described in Specification 27272/09, connected by clips to double helical springs in the manner set forth in Specification 210,587. The surfaces are preferably of different resiliency, and the end tubes, on the side with the softer surface, may lie above the level of the side tubes. Corner fittings 24 - - 27 with double-ended dovetail projections 35, 36 engage corresponding sockets in blocks 42 on the bed-posts when either side of the mattress is uppermost. Alternatively, the mattress may have reversible socket fittings to engage projections on the bed-posts. The ends of the cords 9 are stiffened by cores 48, 49 bent as shown in Fig. 4, or coiled into a helix, and inserted in holes in the tubes to secure them in place.
Patent GB-212939-A (GB)
Title: Improvements in and relating to systems of electric ship propulsion
IPC: B63H23/24
Filed: 1924-03-14
Abstract: 212,939. British Thomson-Houston Co., Ltd., (Assignees of Macmillan, C.). March 14, 1923, [Convention date]. Alternating-current commutator machines; exciting.-In a power transmission system for propelling ships by Diesel engines, several engine-driven alternating-current generators 15, 16, 17 are connected in series with a propeller motor 21 of the synchronous or induction type. Each generator is constructed as shown in Fig. 1 with two-phase shunt excitation coils 6 .. 9, series compensating coils 2 .. 5, and two independent single-phase rotor windings respectively connected to two commutators 10, 11. Current for the shunt excitation is furnished by a svnchronous condenser 18 driven by a variable speed direct current motor 19, the variations of frequency thus obtained being used to control the working of the main motor.
Patent GB-800116-A (GB)
Title: Improvements in or relating to dense liquid separating apparatus
IPC: B03B5/42
Filed: 1956-03-02
Abstract: 800,116. Sink and float separation. JARUZA A. G. CHUR. March 2, 1956 [March 30, 1955], No. 6658/56. Addition to 685,071. Class 82(2) A dense liquid separating apparatus comprises a lifting wheel mounted obliquely on one side of a washbox and arranged to collect the heavy fraction and lift it by rotation for discharge by gravity into a shoot above the wheel. In the case of a single wheel apparatus, the heavy fraction may be conveyed for discharge to a point near the outlet for the light fraction and discharged on to the same draining screen. The lifting wheel is composed of a circular series of baskets 3 connected by arms 4 to a shaft 5 carried on bearings 6, 7 outside the washbox. Blades 8 constituting the baskets 3 are curved and allow material lifted to near the top part of the wheel to slide down to where a guiding cylinder 9 is interrupted and to a shoot 10 located above the wheel which discharges the heavy fraction, at a point near the discharge weir 11 for the light fraction, on to a single partitioned draining screen 12. In modifications, alternative types of wheel are described in which the blades forming the baskets are curved to form discharge spouts, or the blades may be so positioned as to allow exit to the shoot from the outer rim of the wheel. For separating into three fractions, a double washbox and double wheel, Fig. 13, may be used, the outer box, Fig. 11, containing the denser of two separating fluids. The shoot 57 conveys the heavy fraction from compartment 44 to compartment 45.
Patent GB-601123-A (GB)
Title: Improvements in the production of synthetic linear condensation polymers
IPC: C08G69/08
Filed: 1945-03-16
Abstract: Synthetic linear polyamides are prepared by the self-condensation of b -amino propionic acids which are disubstituted on the a -carbon atom by organic radicals which do not interfere with amide formation. The amino acids employed are amino-pivalic, b -amino-a a b -trimethyl propionic, b -amino-a a -diethyl propionic, b -amino-a -methyl-a -ethyl propionic, b -amino-a -methyl-a -phenyl propionic acids and also those in which the two hydrogen atoms on the a -carbon atom are replaced by one divalent radical to form a ring or by radicals which are capable of forming during the condensation a ring system, or in which the a -carbon atom is part of a ring system which includes the b -carbon atom, such acids including 2-amino-1-methyl - cyclohexane - 1 - carboxylic acid and 1 - aminomethyl - cyclohexane - 1 - carboxylic acid.  The amino pivalic acid may be prepared as described in Specification 601,142, [Group IV(b)].  The amino acids may also be co-condensed with other reagents capable of forming linear polyamides, such as o -amino caproic acid and a substantially equimolecular mixture of hexamethylene diamine and adipic acid.  The polymers may be mixed with, for example, cellulose acetate, aceto-butyrate, butyrate and aceto-stearate, ethyl cellulose, oxyethyl cellulose, oxyethyl cellulose acetate, benzoyl cellulose and other cellulose derivatives, plasticizers or softening agents, dyestuffs and pigments.  In the examples: (1) 2 parts aminopivalic acid, 5 parts m-cresol and 1 part water are heated in a stream of hydrogen at 190 DEG  C. for 200 hours and the poly-amino acid is precipitated as a white powder by addition of acetone.  (2) and (3) mixtures of aminopivalic acid and aminopivalic ethyl ester and mixtures of aminopivalic acid and hexamethylene di-ammonium adipate are similarly reacted.
Patent GB-525795-A (GB)
Title: Manufacture of condensation products containing nitrogen
IPC: C09B1/32
Filed: 1939-03-01
Abstract: 525,795. Dyes, dyeing. SOC. OF CHEMICAL INDUSTRY IN BASLE. March 1, 1939, Nos. 6692 and 6693. Convention dates, March 2, 1938, and Feb. 11, 1939. Addition to 504,562. [Classes 2 (iii) and 15 (ii)] The process of the parent Specification is applied to products obtained by the reaction of a dihalogenpyrene with an aminoanthraquinone - o - carboxylic acid or ester, or to corresponding products made by analogous processes, e.g. by the reaction of a diaminopyrene with an anthraquinone carboxylic acid or ester containing a negative substituent in o-position to the carboxyl group. In examples, 3 : 8 -, 3 : 10 - or a mixture of 3 : 8 - and 3 : 10 - dibrompyrenes are reacted with 1-aminoanthraquinone - 2 - carboxylic acid ethyl ester in nitrobenzene with addition of cuprous chloride, and the products are saponified and heated with benzoyl chloride in nitrobenzene ; vat dyes dyeing cotton in olive tints are obtained. Examples of the dyeing of cottom from a hydrosulphite vat with the products are also given.