baber/WOPTO huggingface dataset:
Patent GB-1447457-A (GB)
Title: Variable speed belt drive for an agricultural machine
IPC: F16H9/12
Filed: 1974-06-27
Abstract: 1447457 Expanding-pulley gear DEERE & CO 27 June 1974 [29 June 1973] 28629/74 Heading F2D A variable-speed belt drive suitable for the propulsion of combine harvesters comprises a pulley 34 of fixed diameter driven by a belt or belts 36 and rotatable on an intermediate shaft 46 with a pulley 40 of adjustable diameter connected by a belt 44 to a second driven pulley 42 of variable diameter, means such as springs 200, 202 biasing an axially movable element 160 of the pulley 42 towards an axially fixed element 142, cams 148, 166 between the elements 142, 160 so arranged that increased torque causing relative rotation between the element 160, which is rotatable relatively to the output shaft 136, and the element 142, which is fixed to the output shaft, results in increased pressure between the elements 142, 160 with consequent increase in effective diameter of the pulley 42 and increase in tension in the belt 44, and mounting means for the intermediate shaft 46 whereby the latter is movable transversely to its axis so that changes in tension in the belt 44 cause tension changes also in the belts(s) 36. The mounting for the intermediate shaft 46 comprises an arm 48 adjustably secured to a bracket 60 which is pivotally mounted at 50. The pulley 40 is constituted in part by an element 82 formed on the pulley 34 which is axially fixed on the intermediate shaft 46 and rotatable thereon on bearings 70, and in part by an element 86 which is mounted on a bearing 96 and is axially slidable by hydraulic pressure admitted to a chamber 106 under the control of the operator. The elements 82, 86 are held against relative rotation by splines 90, 92.
Patent GB-428932-A (GB)
Title: Method of and solution for waving hair
IPC: A61K8/46
Filed: 1933-10-16
Abstract: 428,932. Hair-waving. JACKSON, L. MELLERSH-, 28, Southampton Buildings, Chancery Lane, London.-(Zotos Corporation; 33, West 46th Street, New York, U.S.A.) Oct. 16, 1933, No. 28642. [Class 131] Hair is waved by forming a tress about a suitable mandrel or other shape, moistening the tress with an aqueous alkaline solution containing a sulphonated organic material as, for instance, an alkyl naphthalene sulphonic acid or a sulphonated product of an aryl hydrocarbon containing ten or more hydrocarbon atoms in the hydrocarbon portion of the molecule including one or more alkyl groups, with or without a higher alcohol such as linalvol or terpineol, and applying heat to the moistened formed tress. Sulphonated organic materials specified are turkey red oil, isopropyl and isobutyl naphthalene sulphonic acids, abietene sulphonate and lauric acid sulphonate.
Patent GB-599956-A (GB)
Title: Improvements in electric heating and ventilating apparatus
IPC: F24F7/00
Filed: 1945-10-30
Abstract: 599,956. Air heaters. WARD, G. F. Oct. 30, 1945, No. 28651. [Class 64 (i)] [Also in Group XI] In an apparatus for heating buildings comprising an inner casing formed as a venturi throat and fitted with means for heating a primary air current passing therethrough, and an outer casing surrounding the inner casing such that a secondary air current heated by the inner casing is induced to flow between the inner and outer casings, the lower and upper parts of the inner casing are so formed and the air inlet and outlet are so disposed relatively to a heating element located in each of said parts that radiant heat from the elements passes directly and is reflected indirectly through the air inlet and outlet in addition to heating the primary air current passing through the inner casing. The inner casing 2 has its front and rear walls shaped to a venturi throat 3 across which is disposed an electric heating element 4 which radiates heat indirectly by reflection from the casing at 5 and directly through air-inlet 6, a second heating element 9 emitting heat directly through air outlet 8 and indirectly by reflection from the casing at 7. The heated casing at 3 heats the primary air stream, and a separate air flow outside the heated casing passes through the space 13 from inlets 15, 16, to outlets 17, 18. A damper 21 controls the amount of fresh air passing in at inlet 19 to mix with re-circulated air. A portable cabinet type of apparatus is also described and both types may employ gas heaters.
Patent GB-903438-A (GB)
Title: Improvements in and relating to magnetic amplifier controlled systems
Inventor: ASBURY ALAN
IPC: H02P3/14
Filed: 1957-09-11
Abstract: 903,438. Control of D.C. motors. ENGLISH ELECTRIC CO. Ltd. Sept. 11, 1958 [Sept. 11, 1957], No. 28656/57. Class 38 (3). Relates to D.C. traction systems employing rectifier substations wherein the voltage across bus-bars 10a, 10b tends to increase due to regenerative operation of traction motors 11, a number of loading resistors 13 being connected across the bus-bars in sequence until the bus-bar voltage has been restored substantially to its normal value. Each resistor is connected in circuit by a relay having its coil 14 in series with a main winding 12a of a magnetic amplifier 12, and control windings 12b of all the amplifier units carry a common current derived from potential divider 15, 16, 17. The resistor 17 is adjusted so that zero current flows through the windings 12b when the bus-bar voltage has the normal value. Each of the auxiliary bias windings 12c of the amplifiers are individually energized from a fixed voltage source, resistors 18 enabling the bias signals to be adjusted so that each amplifier is operated at a different value of current in the winding 12b. Thus, the bias control signals are graded for operating one amplifier at a predetermined over-voltage on the bus-bars, and, if the voltage continues to increase, a second amplifier becomes operative. In a modification, each amplifier unit comprises a thyratron which is rendered conductive in response to the output of the amplifier to operate an ignitron which acts as a switch to introduce a load resistor. A contactor, having its operating coil in the cathode circuit of the ignitron, serves to short-circuit the ignitron and to retain the resistor in connection across the bus-bars after ignitron has fired, Fig. 2 (not shown).
Patent GB-1424970-A (GB)
Title: Method and an installation for feeding a curd/whey mixutre in the correct ratio to an apparatus for filling cheese moulds
IPC: A01J25/10
Filed: 1974-06-28
Abstract: 1424970 Feeding curd and whey STORK AMSTERDAM BV 28 June 1974 [18 July 1973] 28765/74 Heading A2B Curd and whey are fed to a machine for filling cheese moulds by feeding mixed curd and whey from a reservoir to a pump and then to the filling machine the curd/whey ratio being adjusted by metering whey from a container into the line from the curd and whey reservoir to the pump.
Patent GB-944734-A (GB)
Title: Cast resin insulation with shrunk-on sleeve
Inventor: NOWAK PAUL
IPC: H01B13/30
Filed: 1961-08-10
Abstract: 944,734. Electric cables; insulation. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. Aug. 10, 1961, No. 28917/61. Drawings to Specification. Heading H1A. A conductor is wound with insulating strips or foils impregnable with artificial resins on which a shrinkage sleeve is drawn and is shrunk thereon, before or after impregnation of the insulation, the resin being hardened thereafter. The shrunk on sleeve may be subsequently withdrawn from the cable with the help of a thin film of a suitable separating medium e.g. a lubricating oil coated on the inside surface of the sleeve before it is put on the cable. An epoxy resin is preferably used as the impregnant, while the shrinkage sleeve may be e.g. of P.V.C. or a cellulose ester.
Patent GB-519889-A (GB)
Title: Improvements in or relating to the air cooling of multi-cylinder internal combustionengines
IPC: F02F1/06
Filed: 1938-10-05
Abstract: 519,889. Cooling cylinders. FAIRBROTHER, H. (Bayerische Motoren Werke Akt.-Ges.). Oct. 5, 1938, No. 28920. [Class 7 (ii)] In an air-cooled engine having several rows of cylinders, the spaces between successive rows are subdivided by partitions 1, 2, 3 into passages 14, 12, 15, 13, 16, 17 which alternatively increase and decrease, and through which cooling air is admitted and expelled respectively. In the V engine shown, the cylinders are surrounded by a casing 11. The application to a radial-cylinder engine is also described.
Patent GB-1344747-A (GB)
Title: Packaging of cigarettes
IPC: B65B19/22
Filed: 1972-06-21
Abstract: 1344747 Forming cigarette packets MASCHINENFABRIK FR NIEPMANN & CO 21 June 1972 [22 Dec 1971] 28958/72 Heading B5D [Also in Division B8] In an apparatus for forming cigarette packets having two broader sides by folding paper blanks around mandrels 6, each packet is withdrawn from mandrel 6 by a vertically reciprocable gripper 25, transferred to a pivotal gripper 26, deposited on one of its narrower sides on a conveyer 1 by the pivotal gripper 26, and overturned by a rotating arm 27 projecting through a slot in the conveyer 1 prior to receiving a batch of cigarettes 3. Each packet is deposited in a circular recess (1a Fig. 2) in the conveyer 1 and is controlled during its overturning by lateral guides (29, 30, Fig. 2). The blanks 11 are pushed on to the mandrels 6 by a lever 15 after being withdrawn from a feed device 10 and glued by a gluing roller 14. During upward movement of the mandrel and blank, the blank is tubed around the mandrel by folders 16 and the packet bottom is formed by folders 17-19. Retaining devices 21 which are movable with the mandrels, press the longitudinal seams of the packets against the mandrels and a presser and heater bar 20 applies pressure to the packet bottoms. Prior to the withdrawal of the packets from the mandrels, the packets are released by a lever 23 engaging the retaining device 21.
Patent GB-204559-A (GB)
Title: Improvements in the process of, and apparatus for, obtaining large and uniform crystals from solutions
IPC: B01D9/00
Filed: 1922-10-25
Abstract: 204,559. Passburg, E., and Griffiths, H. Oct. 25, 1922. Crystallizing.-In obtaining large crystals by passing a saturated solution through a rocking trough from an inlet e to an outlet f provision is made to prevent the cooler solution from the outlet end passing towards the inlet end owing to accumulation of small crystals near the outlet, and to prevent longitudinal surges of liquid owing to the movements of the crystals in the solution. For this purpose, the trough is divided by transverse partitions b which may be fixed or removable. A single spiral partition may be used. The partitions may be perforated or may have a central opening adapted to be closed more or less by a slide, or may be supported so as to leave a clearance at one side or at the bottom. The partitions may be supported by a rod extending above the trough, and may move with the trough or be held stationary. The rod or the individual partitions may be adjustable vertically. Scrapers which move across or lengthwise of the trough may be provided in the separate compartments.
Patent GB-1236814-A (GB)
Title: Label applying apparatus
Inventor: ROTHENBERGER HANSJOERG
IPC: B65C11/00
Filed: 1968-06-19
Abstract: 1,236,814. Label applying apparatus. H. ROTHENBERGER. 19 June, 1968 [28 June, 1967 ; 20 March, 1968], No. 29160/68. Heading B8F. Apparatus for sequentially applying labels withdrawn from a supply consisting of a strip of label material laminated with a carrier is arranged on a single actuation of the apparatus to operate in distinct stages to (1) withdraw a length of label material from the supply and feed it towards an applying position and (2) apply a label. The apparatus described is for manual operation using the pressure of one hand only but mechanical operation is also contemplated. When a housing 1 is directed towards a surface 79 a roller 10 makes contact with the surface and continued movement of the housing results in pivoting of a lever 8 and rotation of rollers 30, 31 by interaction of rack teeth 29 with teeth associated with the roller 30. Rotation of the rollers 30, 31 discharges a length of carrier strip 46 and withdraws laminar strip from a spool 44. The carrier strip is drawn over an edge 48 where it is peeled from the label material which extends in the direction of arrow 81. Further movement of the housing 1 towards the surface 29 continues the pivoting of lever 8 to disengage the rack teeth 29 from the roller teeth and discontinues discharge of the strip. Release of the lever 8 from its strip discharging function results in a sudden increase in its angular speed for the second stage of the operation in which a printing stamp 60 is applied to a portion of label material while a preceding portion is severed by a blade 51 and applied to the surface 79 by a rotary pressure pad 57. The length of the labels is adjustable. The printing stamp includes an ink pad 63 and coaxial rings formed with type for indicating, e.g. monetary values. Other forms of pressure pad and severing blades are described.
Patent GB-851704-A (GB)
Title: Improvements in hydraulic valves
IPC: E03B9/02
Filed: 1955-10-14
Abstract: 851,704. Valves. TOMKINS, A. B. (Doyle, J. C.). Oct. 15, 1956 [Oct. 14, 1955], No. 29285/55. Class 135. The screw-down closure 7 of a hydrant valve is prevented from rotating, during its opening and closing movements, by parallel guides 13 of machined stainless steel, bronze or other material more resistant to corrosion and wear than the iron valve casing 1. The guides, which are preferably of rectangular cross-section, are secured in the casing by end spigots and bolts, the spigots fitting into recesses in the valve pressure plate 18 and adjacent the valve seat 9 ; the guides are therefore reversible to present new wearing surfaces to the closure 7 and worn guides may be readily replaced, such an operation being facilitated by the provision of a gate valve 22 bolted between the casing 1 and a main 25 whereby flow to the latter from the valve inlet 1a may be stopped. According to the Provisional Specification the guides may be inset in dovetail grooves in the valve body.
Patent GB-795691-A (GB)
Title: Electric lighting fittings
Inventor: BISSELL JOSHUA HOWARD
IPC: F21V19/02
Filed: 1955-10-14
Abstract: 795,691. Lighting fittings, REVO ELECTRIC CO. , Ltd. Oct. 1, 1956 [Oct. 14, 1955], No. 29292/55. Class 75(4) In a flameproof electric lighting fitting comprising a hollow body 5 closed by a transparent or a translucent cover 7 to form an enclosure 8 for the lamp 15, and a housing 9 secured to the body 5 to provide with the wall 5a thereof a second enclosure 10 for the electrical connections 11 for the lamp 15, an externally screw-threaded lampholder 14 is located in a screwthreaded hole in the dividing wall 5a between the two enclosures 8, 10. For siting the filaments of different powered lamps 15 at the focus of the reflector 19 in the body 5, the lampholder may be locked in two different axial positions in its hole by a washer 17 which engages a recess at the socket end'of the holder 14 and is secured by a screw 16 either directly to wall 5a or to a boss 20 projecting therefrom.
Patent GB-285578-A (GB)
Title: Improvements in and relating to hand operated presses
IPC: B30B1/12
Filed: 1926-11-19
Abstract: 285,578. Brecknell, W. H. Nov. 19, 1926. Addition to 234,661, [Class 100 (ii), Printing processes &c.]. Force-feed lubricating. - In a hand-operated press according to the parent Specification, comprising a presser member 4 connected by toggle mechanism 7, 8, 13 to a plunger 14 connected by a toggle to a hand lever, the plunger being guided in a fixed member 2 and in the member 4, a sheet-metal casing 40 secured to the member 4 forms an oil bath in which the lower toggle joints 10 are immersed, and the lower end of the plunger and the guideway 41 in the member 4 form respectively the plunger and cylinder of a pump for forcing oil from the bath to the upper joints. Suction and delivery valves 42, 44 are provided. The pump discharges through passages 45, 46 to recesses 47 in the plunger. During the first part of the down stroke, the recesses 47 are in register with passages 48 in the member 2, and oil passes to the joints 9 through passages 50. At the end of the stroke, the recesses 47 move out of register with the passages 48 and the lower edges of the recesses pass below the lower edge of the member 2, so that the oil lubricates the upper joints of the toggle members 13 and runs down to their lower joints, whence it passes through holes 51 in the toggle members. 7 to the upper joints of the toggle members 8.
Patent GB-967930-A (GB)
Title: Gas mixtures containing nitrous oxide
Inventor: BRACKEN ARTHUR
IPC: C01B21/22
Filed: 1961-08-15
Abstract: A homogeneous gaseous mixture comprises up to 75% v/v. nitrous oxide in admixture with a "permanent" gas confined in a container at a pressure such that the partial pressure of nitrous oxide is greater than 50 atmospheres.  For inhalation as an anaesthetic gas, the "permanent" gas is oxygen and the nitrous oxide content may be 50 to 60% v/v.  Up to 5% v/v. of cyclopropane or up to 1% v/v. of halothane may also be present.  The gaseous mixture is stored in a pressure container at 132 atmospheres.  The gaseous mixture is produced by charging the gases in the predetermined required proportions into a pressure container until a pressure is reached at which the partial pressure of nitrous oxide is greater than 50 atmospheres.  The required amount of nitrous oxide is charged into a valved pressure container and the permanent gas is added either continuously or intermittently so as to allow equilibrium to take place, the contents of the pressure container being agitated, if desired.  Alternatively, the container may be inverted and the permanent gas bubbled through the liquid nitrous oxide.  Again, the gases may be pre-mixed before being pumped into the pressure container.  In general, the gases are stored at 132 atmospheres pressure.
Patent GB-229742-A (GB)
Title: Improvement in the heat-vulcanization of rubber
IPC: C08K3/22
Filed: 1923-11-22
Abstract: 229,742. Jones, F. C. Nov. 22, 1923. Vulcanizing - compositions. - Transparent or translucent heat-vulcanized rubber is obtained by the use of zinc or other metallic oxide (to activate the accelerator) in a colloidal or finelv divided state and in quantity not exceeding 7 per cent of the rubber. When suitable accelerators, such as tetramethylthiuram disulphid'e with or without hexamethylene tetramine, are used the amount of sulphur may be reduced by 2 per cent or less, and this also is advantageously added in colloidal form. Plasticisers (e.g. stearic acid), dyes, and other ingredients may be added to the mix. Specification 213,454 is referred to.
Patent GB-926904-A (GB)
Title: New polymers
Inventor: KRAY RAYMOND JOSEPH
IPC: C08G2/00
Filed: 1960-04-01
Abstract: High molecular weight oxymethylene polymers containing in the polymer chain, besides oxymethylene groups, groups having adjacent carbon atoms of which a terminal atom is in a carboxyl group forming part of the polymer chain may be prepared by copolymerizing trioxane and a lactone.  The lactones preferably contain at least five members in the lactone ring, e.g. gamma-butyro-, delta-valero- and epsilon-capro-lactones and phthalide.  The polymerization may be effected in the presence of catalysts, e.g. boron trifluoride and complexes thereof with water or an alcohol, phenol, acid, ether, acid anhydride, ester, ketone, aldehyde, dialkyl sulphide or mercaptan, preferably boron trifluoride mono-, di- and trihydrates and di-ethyl and dibutyl etherates; and solvents and diluents, e.g. cyclohexane, benzene, ethylene dichloride, pentane or normal paraffins containing 7 to 20 carbon atoms.  Polymerization may be effected batchwise or continuously and preferably with the trioxane in the molten state. The polymers may be blended with stabilizers, preferably a phenolic antioxidant and a chain scission inhibitor as described in Specification 926,903, many suitable stabilizers being listed. Specifications 877,820 and 903,668 also are referred to.
Patent GB-1405693-A (GB)
Title: Methacrylate/acrylate polymers
IPC: C08L27/02
Filed: 1973-06-21
Abstract: 1405693 Acrylate/methacrylate copolymers TENNECO CHEMICALS Inc 2] June 1973 [13 July 1972] 29605/73 Heading C3P Copolymers of alkyl acrylate and methacrylate are prepared in aqueous emulsion from a monomer mixture containing up to 20% of alkyl acrylate in the presence of a water-soluble free radical catalyst other than a redox catalyst, an emulsifying agent and a chain transfer agent at 50-70 C. until 40-60% conversion and thereafter increasing the temperature by at least 10 C. to 70-100% over 10-40 minutes and completing polymerization. Close control of the molecular weight of the product can be maintained. The products are used as processing aids, e.g. for PVC.
Patent GB-915472-A (GB)
Title: Process for arylindandiones
Filed: 1960-08-29
Abstract: A process for the preparation of a 2-arylindandione of the formula <FORM:0915472/IV (b)/1> by the reaction of the aldehyde RCHO and phthalide is characterized by the step of including in the reaction mixture two equivalents of alkali metal alkoxide and at least one equivalent of an ester, R1COOR2, R being a -naphthyl, phenyl, 41-halo-, 41-alkyl or 41-alkoxy phenyl, R1 being hydrogen or C1-C3 alkyl and R2 being C1-C4 alkyl.  The examples relate to the preparation of 2-arylindandiones from a -naphthaldehyde, p-tolualdehyde, p-fluoro-, -chloro-, bromo- and iodo-benzaldehydes, anisaldehyde and benzaldehyde. Specification 761,816 is referred to.
Patent GB-152677-A (GB)
Title: Improvements relating to packing material
IPC: B65D5/49
Filed: 1920-10-20
Abstract: 152,677. Klus, E. Sept. 4, 1914, [Convention date]. Packing fragile articles.- Cell paper produced in the known manner is cut transversely of the cells into strips and opened cut, and then the walls of the opened cells are crimped as shown by endlong pressure. To apply the pressure, a plate may be employed provided with protuberances and cavities like a relief pattern to which the cell paper corresponds after being pressed.
Patent GB-1221619-A (GB)
Title: Cleaning of looms
IPC: D01H11/00
Filed: 1969-06-12
Abstract: 1,221,619. Nozzles. GRINNELL CORP. 12 June, 1969 [12 June, 1968], No. 29759/69. Heading B2F. [Also in Division F4] A tubular cleaning unit 18 for removing lint, &c. from a weaving loom comprises a flexible tube 21, rigid tubes 20, 24 and a nozzle 25 of flattened shape having two outlet passages 25g and 25h offset from the general longitudinal axis of the unit. The unit is supplied with compressed air from an overhead pipe (16, Fig. 3) to which it is connected via a coupling 19. In operation the passage of compressed air through the flexible tube 21 and nozzle outlet passages 25g and 25h causes the nozzle to move in an oscillatory or circular path across the surface of the loom to be cleaned. In a modified cleaning unit (Figs. 5, 9 and 10, not shown) the nozzle is provided with a single discharge passage (46d) which is inclined at a small angle so as to be offset from the longitudinal axis of the unit. The top of the unit is provided with a ball joint connection (44a) to allow oscillation to take place. A tube (45) made of a vinyl resin links the nozzle with the ball joint connection.