baber/WOPTO huggingface dataset:
Patent GB-173544-A (GB)
Title: Gas engines
IPC: F02B75/02
Filed: 1920-07-05
Abstract: 173,544. Woolf, E. J., and Woolf, J. F. July 5, 1920. Valves.-In a two-stroke engine, a piston valve 25 in a chamber adjacent to the working cylinder controls the passage of fuel mixture through ports 61, 62 to the crank chamber, and the passage of the exhaust from a series ports 50 and the annular passage 52 to the exhaust pipe 28, the fuel mixture passing from the crank chamber to the working cylinder through a series of terminal inlet ports 54. The invention is described as applied to a two-cylinder engine with a single valve chamber between the two cylinders, the pistons having enlarged heads 18 working in the crank chambers, and the rear faces of these heads acting to force air to and fro through the cylinder jackets for cooling. Air heated by the exhaust gases enters the carburettor A at 41, and the fuel-mixture passes through the revensely-curved passage 47 to the valve chamber and thence into the crank chamber. A cold-air inlet 43 formed with the carburettor leads through a chamber 60, in which the valve actuating eccentric works, and through ports 65 controlled by the valve and by the piston head 18 into the crank chambers. The operation of the engine is as follows. On the up-stroke of the piston head 18, cold air for scavenging is drawn into the lower part of the crank chamber through the port 65, and fuel mixture is drawn from the valve chamber through passages 62 into side chambers 56 communicating with the crank chamber. On the down-stroke, the ports 61, 65 are closed, and the mixture and air are compressed without intermixing. The valve 25 places the exhaust passage 52 in communication with the exhaust pipe, and the working pistons then uncover first the exhaust ports 50, and later the inlet ports 54. A stratified charge then enters the cylinder, comprising a charge of air (left in the upper part of the chambers 56 from the preceding cycle), a charge of fuel mixture, and finally a further charge of air. The valve closes the exhaust passages before the piston closes the inlet ports 54.
Patent GB-119758-A (GB)
Title: Change-speed Gearing for Motor-cycles and the like.
Inventor: ALLTREE ARTHUR
IPC: B62M25/00
Filed: 1917-12-17
Abstract: 119,758. Alltree, A. Dec. 17, 1917. Variable-speed toothed gearing. - four-speed gearing for motor-cycles &c. has four toothed wheels on the alined driving and driven shafts gearing with corresponding wheels on a lay-shaft, the required speeds being obtained by sliding the pairs of intermediate interengaging wheels into engagement with clutches on the driving and driven wheels and the lay shaft. The driving- shaft 1 carries a fast wheel 3, and the driven sleeve 4 carries a loose wheel 7 and a pair of slidable intermediate wheels 5, 6. The lay-shaft 9 carries corresponding fast wheels 10, 11 and loose wheels 12, 13. The wheels 5, 12 and 6, 13 are separately connected together by forks 14<x>, 14 to slide under the influence of rods 19, 21 to engage clutches on the shaft 1 and wheel 7 for solid drive and low speed, respectively, or to engage clutch teeth 9<c> on the shaft 9 for the two intermediate speeds. Gate control, such as is described in Specification 108,923, is used. The shaft 1 may be the driven member and carry the wheels 5, 6, 7, the wheel 3 being fast on the driving sleeve 4. One pair of intermediate wheels may be dispensed with, three speeds being obtainable. The clutch parts may be formed either on the shafts or on the wheels turning therewith. A ratchet kick-starter 18 is provided.
Patent GB-1179343-A (GB)
Title: Meat Product
Inventor: SCHROEDER JACK JACOBSON
IPC: A23L13/60
Filed: 1967-04-24
Abstract: 1,179,343. Meat products. J. J. SCHROEDER. 24 April, 1967 [1 Sept., 1966], No. 18733/67. Heading A2B. A process of preparing products suitable for animal or human consumption from the residues of low temperature (not greater than 120‹F.) or high temperature (160-212‹F.) rendered meat scrap and/or trim comprises treating the residues with an acid to a pH of 1 to 4, and comminuting said acidified residues for a period of time less than that required to convert a major amount, by weight, of protein in said residues to a water-soluble stage. The product may be neutralised and the acidified or neutralised product may be used alone as a food or as a component in a food preparation comprising e.g. soya flour, sodium caseinate, lipoprotein or dry skim milk. The product may be dehydrated. The acidifying and comminuting is preferably done at elevated temperature. A preservative (e.g. benzoic, propionic and sorbic acids and salts thereof) may be added during the acidifying step. The acid may be hydrochloric, sulphuric, phosphoric, acetic, lactic, fumaric, succinic, glutaric, adipic, malic, tartaric or citric acid. An example discloses a dog food comprising acidified and comminuted high temperature rendered meat tissue, soya flour, sodium caseinate, dextrose, starch, propylene glycol, common salt tripolyposphate and dry skim milk.
Patent GB-130018-A (GB)
Title: Improvements in Lever Control Mechanism.
Inventor: GLEDHILL ARTHUR HENRY
IPC: B64D1/02
Filed: 1917-12-17
Abstract: 130,018. Gledhill, A. H. Dec. 17, 1917. Dropping bombs and other articles from a height.-A lever control device, particularly applicable to the apparatus for releasing bombs, mail-bags, or the like from aircraft described in Specification 128,603, comprises a zig-zag slot b in a plate B, along which a lever is advanced in steps by a succession of straight pulls. A spring or weight acts laterally upon the lever in the direction of the arrow c', to bring it after each pull into position for the next pull. The lever can be moved throughout the length of the slot in either direction by applying continual lateral pressure to it in the direction of the arrow C<1> or D.
Patent GB-917798-A (GB)
Title: A suspension rail structure, more particularly for curtains
IPC: A47H1/144
Filed: 1961-05-25
Abstract: 917,798. Suspending curtains. MOOI, T., and JONGEJAN, J. C. T. May 25, 1961 [May 28, 1960], No. 18879/61. Class 52 (5). A curtain rail has symmetrically constructed oppositely facing channels 1, 2 with inturned flanges defining longitudinal slots 3. The upper flanges support the rail on an inverted T- shaped projection 5 on a bracket arm 4. The lower flanges 9 form tracks for curtain runners 6. An end block 10 has spigots entering the channels 1, 2. The rails may be interlocked side by side by the flange of one rail entering the channel of an adjacent rail. Crossing rails may be linked by a double-headed peg (Fig. 4, not shown). In another form the channels are gapped rings in cross-section (Fig. 1, not shown).
Patent GB-638816-A (GB)
Title: Improvements in and relating to electric heating elements of absorption refrigerators
IPC: H05B3/16
Filed: 1948-07-14
Abstract: 638,816. Heating refrigerators by electric resistances. ELECTRICITY METER MANUFACTURING CO. PROPRIETARY, Ltd. July 14, 1948, No. 18971. Convention date, Aug. 21, 1947. [Class 39 (iii)] In an absorption refrigerator, an electric heater is held in heat transfer relation with the boiler or pump tube by submerging the heater in a paste or slurry e.g. of magnesium oxide, which dries into a solid with good heat-conductive and dielectric properties. A resistance wire 3 is wound on a tubular dielectric former and is covered with a paste 6 of magnesium oxide to the depth of flanges 5 on the former, and after drying the heater is immersed in a further similar slurry in the boiler tube of the refrigerator. The difference of temperature between the heater and the boiler is thus reduced to 70‹-150‹F. The wire may be wound in two or more sections, one or more of which may be controlled by a thermostat.
Patent GB-765703-A (GB)
Title: A contact rectifier with commutating reactors and means for the control of the direct-current voltage
IPC: H02M1/26
Filed: 1954-06-29
Abstract: 765,703. Rectifying. LICENTIA PATENTVERWALTUNGS-GES. June 29,1954 [July 2, 1953], No. 19052/54. Class 38 (2). In a contact rectifier regulation of the direct voltage output is effected by the operation of the combination of three known methods which comprise (a) variation of the supply voltage by means of a tapped transformer 15; (b) variation of closure times of the contacts 7 ... 12 by means of an induction regulator 14<SP>1</SP> whereby the position of the contact driving motor 13 is varied relative to the phase position of the supply; (c) variation of the effect of the switching chokes 4, 5, 6 by means of a variable inductor 18 and a saturable reactor 17 which supply a pre-magnetizing, such as 16, on each switching choke.
Patent GB-1333337-A (GB)
Title: Jet propulsion unit for boats
IPC: B63H11/00
Filed: 1972-04-26
Abstract: 1333337 Water jet outboard unit SIRA SOC INDUSTRIALE RICERCHE AUTOMOTOR ISTICHE 26 April 1972 [11 May 1971] 19287/72 Heading B7V A marine jet propulsion unit 1 comprises a tubular body 2 rotatably mounted in a support 6 and internal combustion engine 11A is mounted on the body. Transmission shaft 19 is drivingly connected to bladed impeller 25 situated in a tubular casing 21 the axis of which is coaxial with the transmission shaft and water inlet 22 communicates with the tubular casing and is connected to discharge nozzle 28 by elbow duct 27. Annular duct BB<SP>1</SP> surrounds the transmission shaft and extends from the elbow duct to the upper part of the tubular body for the conduction of cooling water to upper chamber E into which conduit 51 leads engine exhaust gases to mix with the cooling water. A second annular duct FF<SP>1</SP> coaxial with annular duct BB<SP>1</SP> leads from this upper chamber to intermediate chamber G, H, I, which surrounds the elbow duct and which communicates with apertures 32, 33.
Patent GB-931612-A (GB)
Title: Improvements in or relating to watering devices for plants
IPC: A01G27/00
Filed: 1961-05-30
Abstract: 931,612. Devices for watering plants. B. KAISER. May 30, 1961 [June 7, 1960], No. 19393/61. Class 6(2). A device for watering plants comprises a container 28 having a controllable air inlet 40 on its upper end and, Fig. 4, an outlet 32 arranged above a container 35 provided with distributing tubes 36 which feed water to the plants by means of threads 38. The inlet 40 receives the end 41 of a cup 42 provided with a stopper 46 of ceramic material, water being provided in the spaces 47-49 so that water flows from the outlet 32 only when the water in the spacer has evaporated and the stopper dried out to allow air to pass through the stopper. In a modification the cup 42 is formed integral with the container and the water outlet is formed at the end of tube 34, the container 35 and threads 38 being omitted in this case. The water container may also be closed by a rubber tube fixed to the part 28 and held closed by a hose clamp. In Fig. 2 the air inlet to the water container 7 is provided by a tube 15 which dips into water contained in a receptacle 14 so that water is discharged from the outlet 8 only when the water level in the receptacle 14 drops below the end 13 of the tube 15. The amount of water discharged through the outlet 8 is controlled by a valve 16.
Patent GB-689882-A (GB)
Title: Improvements in and relating to thermal-responsive devices for electrical apparatus
IPC: H01F27/08
Filed: 1951-08-21
Abstract: 689,882. Electrically heated thermal images. BRITISH THOMSON-HOUSTON. CO., Ltd. Aug. 21, 1951 [Aug. 28, 1950], No. 18696/51. Class 39(iii) [Also in Group XIX] A thermal-responsive device 12 for indicating at 15 the temperature of electrical apparatus e.g. a transformer in a tank 1 normally filled with liquid 4 is mounted in a housing 10 exteriorly of the tank and in hydraulic communication therewith so that the liquid normally flows through the housing over the thermo-responsive device 12 therein, and a heating coil 23 in the housing in heat-exchange relation with the device 12 is energized by a current transformer 16 in electrical series with the apparatus 1, the calibration of the heating of the coil 23 being effected by an adjustable resistor 24 in parallel with the coil 23 and mounted on the outside of the tank. The device 12 thus forms a thermal image of the windings of the transformer &c. 1. The housing 10 may be connected to a header of several cooling tubes 5 of the tank 1. The device 12 may be a resistance element sensitive to temperature' or a spiral bimetal with a. shaft carrying a pointer or having cams actuating switches or relays controlling auxiliary coolers, indicators e.g. a sound alarm, or a circuit breaker for the apparatus 1. The device 12 is protected from the liquid by a sealed casing 11 over a certain length of which is wound the heater 23. The indicator housing 15 is rigidly connected to the device 12 and has a collar 14 screwed into a flange at the end of the housing 10. Where there are no cooling tubes 5, the housing 10 is mounted directly on the outer wall of the tank 1 and has a baffle, above and below which the wall is apertured, so that liquid flows around the baffle and over the device 12 in the housing, which is preferably triangular in vertical cross-section. The temperature indicator has two pointers, one of which registers maximum temperature and may be reset magnetically (see Group XIX).
Patent GB-184674-A (GB)
Title: Improved seal for the mouth of blast-furnaces and the like
IPC: C21B7/18
Filed: 1921-07-22
Abstract: 184,674. Chen, F. C. July 22, 1921. Charging.-A charging-arrangement and seal for the mouth of a blast furnace comprises a cylindrical mouth a with a tapered seat at both ends, the lower end closable by a cone p and the upper end by a separately-operated plunger b. The plunger b conforms exactly to the internal shape of the mouth a, both in its cylindrical part and in its upper conical part c, and is guided on the rod o of the cone p by a central member n, which, in conjunction with an abutment k, also limits the upward movement of the plunger. An abutment o' on the rod o, adapted to engage the platform m, limits the downward movement of the cone p. The cone p is operated by a lever r, and the plunger by the gearing y, wand chains g. Detachable weights i may be carried by the plunger.
Patent GB-976726-A (GB)
Title: New oxasteroid compounds and processes for their preparation
IPC: C07J1/00
Filed: 1961-05-31
Abstract: The invention comprises 3-alkoxy-3-methyl-19-nor-4-oxa -9b -androst-5(10)-ene derivatives having the general formula <FORM:0976726/C1/1> where R is a hydrogen atom or an acyl residue and R1 is a lower alkyl group and processes for the preparation thereof wherein a D 8-3-methyl-7 - keto - 8 - (g -keto-butyl)-3, 4- [cyclopentano-(21, 11)]-octahydronaphthalene derivative is catalytically hydrogenated in solution in an acidic medium incorporating a lower alkanol to yield the corresponding desired 4-oxa steroid.  As catalyst there may be employed palladium black. The 17b -acyloxy substituent in the product may be subsequently hydrolysed to obtain the corresponding 17b -hydroxy compound. Specifications 914,732 and 976,728 are referred to.
Patent GB-459536-A (GB)
Title: Improvements in or relating to the manufacture of a physiologically active substance from the urine of women
IPC: A61K38/24
Filed: 1935-07-10
Abstract: A substance which activates the gonadotrapic hormone of the anterior lobe of the hypophysis is obtained from the urine of non-menstruating women, i.e. those no longer capable of menstruation, by precipitation with water soluble organic liquids, e.g. ethyl alcohol or metal or ammonium salts.  The precipitate is elutriated with an aqueous organic liquid or treated with an adsorbent, the adsorbate being treated with an aqueous, e.g. alkaline extracting agent.  The solutions obtained may be concentrated in vacuo or the agent obtained therefrom by another precipitation.
Patent GB-1422359-A (GB)
Title: Production of pure polyalkylene ether alcohols having a content  of free hydroxyl groups and a content of end groups
IPC: C08G65/337
Filed: 1973-04-26
Abstract: 1422359 Purification and modification of polyethers BADISCHE ANILIN- & SODAFABRIK AG 26 April 1973 [27 April 1972] 19878/73 Heading C3R Substantially alkali metal-free polyalkylene ether alcohols with a content of modified end groups and a content of free hydroxy groups are prepared by polymerizing one or more unsubstituted or substituted alkylene oxides having a C 2-4  alkylene chain in the presence of a basic alkali metal-containing catalyst to provide a polyalkylene ether alcohol having a content of alcoholate groups and a content of free hydroxyl groups, reacting said alkali metal-containing polyalkylene ether alcohol with at least one compound which contains combined therein one or more halomethyl, halomethylene or haloethyl groups having activated halogen to convert the alcoholate groups into ether groups and liberate an alkali metal halide, and separating the alkali metal halide. The halo-compound may contain one or more additional reactive functional groups, e.g. hydroxy groups, and preferably 1 to 3 equivalents are used for equivalent of original basic catalyst. In examples mixtures of ethylene and propylene oxides are condensed on to trimethylol propane and glycerol in the presence of KOH or, Na or K methylate catalysts and the resulting alkali metalcontaining polyalkylene ether alcohols subsequently reacted with 3-chloro-1,2-propanediol, glycerolchlorohydrin, ethylene chlorohydrin, benzyl chloride and ethylene bromohydrin to provide colourless products which after filtration contain less than 5 p.p.m. of alkali metal ions. Uses.-The purified products may be used as textile auxiliaries, surfactants and hydraulic fluids or for the preparation of polyurethane film elastomers, foams or surface coatings.
Patent GB-422787-A (GB)
Title: Improvements in or relating to electric arc converter arrangements
IPC: H02M7/15
Filed: 1933-07-14
Abstract: 422,787. Converting. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and MILNER, W. S., c /o General Electric Co., Witton, Birmingham. July 14, 1933, No. 19975. [Class 38 (ii)] In a rectifier installation employing an interphase transformer the undesirable rise of voltage at low loads due to the interphase transformer becoming ineffective is avoided by blocking one group of anodes by means of an auxiliary valve which applies a negative bias to one set of control grids. The grids 3A, are connected to the cathode 4 through resistances 8, and a resistance 34, the bias across the resistance 34 being determined by a valve 32 supplied from an A.C. source 33. The grid 29 of the valve 32 is connected to a resistance 27 in the anode circuit of a vacuum valve 25 controlled by the voltage drop across a resistance 14 in the D.C. load circuit. For loads above the transitional point the negative bias applied to the valve 32 is sufficient to maintain it nonconducting but below this load value the bias is insufficient and the valve conducts, thus applying a negative bias to the grids 3A. The battery 26 may be replaced by an A.C. supply through a rectifier. In a modification the valve 25 is omitted and an alternating control potential applied to the grid of the valve 32 is varied by means of a saturable choke, the saturating winding of which is connected across the resistance 14. The grids of the discharge device 1 may be controlled to give voltage regulation.
Patent GB-127197-A (GB)
Title: Appliances for Playing a New or Improved Game.
Inventor: HOLLADAY ALFRED JAMES
IPC: A63F9/10
Filed: 1918-12-03
Abstract: 127,197. Holladay, A. J. Dec. 3, 1918. Counters, disks, and the like.-A jig-saw puzzle is modified for playing games by the addition of a board A provided on the upper surface with a picture corresponding to the picture on the jigsaw pieces B, the pieces being positioned by means of pins C on the board and holes in the pieces, or vice versa. In playing a game, the pieces B are divided amongst the players, who spin a top in turn and place as many pieces in position as possible whilst the top is spinning.
Patent GB-968450-A (GB)
Title: Nuclear reactor fuel assemblies
IPC: G21C3/32
Filed: 1963-05-20
Abstract: 968,450. Fuel elements. SULZER BROS Ltd. May 20, 1963 [June 13, 1962], No. 20004/63. Heading G6C. A nuclear reactor fuel assembly comprises a pressure tube including fuel rods and shaped moderator parts which define a number of coolant flow channels. In principle, the coolant flows along the pressure tube interior to a flow reverser, and then back through a series of fuel can containing channels formed in graphite moderator blocks. The pressure tube 1 (Fig. 1) has at its right hand end a bayonet end fitting 2 disposed concentrically around an inner bayonet fitting on an extension of a graphite flow separator 27. A series of identical graphite blocks 4 (Fig. 3) contain 7 axially extending gas passages, each housing a series of metal canned fuel rods 21, which terminate in a flow reversing block 7. An end cap and lateral locator 10 is connected through tie rods 9 to second lateral locator 11 at the opposite end of the moderator block assembly, thus tying it together and locating it laterally, but leaving it free to move axially under thermodynamic forces.
Patent GB-516740-A (GB)
Title: Manufacture of glyoxal
IPC: C07C45/54
Filed: 1938-07-06
Abstract: 516,740. Glyoxal. GROVES, W. W. (I. G. Farbenindustrie Akt.-Ges.). July 6, 1938, No. 20012.. [Class 2 (iii)] Glyoxal is prepared by heating glyoxal tetiacetate with at least four molecular proportions of an aliphatic monohydric alcohol, especially an alcohol containing at most three carbon atoms, such as methanol, ethanol, propanol or isopropanol, in the presence of water and of an acid stronger than acetic acid, e.g. sulphuric acid, hydrochloric acid, phosphoric acid, benzene-sulphonic acid, oxalic acid or tartaric acid. The glyoxal tetracetate is converted into the tetracetal which is saponified, the acetic acid formed being esterified with the alcohol ; the ester and excess alcohol (if any) are then removed by distillation. Examples are given.
Patent GB-1510463-A (GB)
Title: Apparatus for topping fruit canes
IPC: A01D47/00
Filed: 1975-05-07
Abstract: 1510463 Pruning; topping fruit canes W W HALLY 7 May 1975 [7 May 1974] 20016/74 Headings A1E and A1F An apparatus for topping fruit canes comprises a frame which in use extends transverse to the or each row to be topped, a cutter device located adjacent each end of the frame and power means to drive the cutter devices. The apparatus comprises a frame 1 having a first portion 9 for attachment to a tractor and a second portion 3 bearing cutting devices 5, 7. The portion 3 is vertically adjustable e.g. by means of hydraulic rams 11 acting against a bias spring 13. One of the pistons 15 of the rams 11 is attached to the member 3 by a pin in a round hole while the other is attached by a pin in a slot 17 in member 3 so that the cutter devices 5 and 7 can be located at different cutting heights. The hydraulic system of the tractor drives a hydraulic motor 19, the output shaft of which drives the reciprocating cutters 5, 7 via a pulley 21 and belts 41. The driven knife of each cutter is connected by a linkage 35 to an eccentric connection in a V-pulley rotatable with respect to a vertical shaft 27. The vertical shaft 27 is supported by bearing blocks 25 attached to plates 23 extending vertically from the ends of member 3. Pivotally mounted on the shaft 27 are further bearing blocks 29 attached to a plate 31 supporting the cutter devices 5, 7. This arrangement permits the cutter devices to be moved from an operating to an inoperative position as shown in Figure 3. Curved fingers 43 serve to gather up the tops of the canes prior to cutting.