baber/WOPTO huggingface dataset:
Patent GB-691011-A (GB)
Title: Centriugal speed governor
IPC: G05D13/10
Filed: 1950-11-24
Abstract: 691,011. Centrifugal governors. HEINZMANN, F. Nov. 24, 1950 [Dec. 1, 1949], No. 28745/50. Class 57 In a centrifugal governor, the weights 1 are formed integral with arms 4 that pivot on pins 3 secured to the support 2 and are loaded by springs that abut retainers 7 having knife .edges 27 that engage wedge-shaped grooves in the weights. As shown the governor is designed as a maximumminimum speed governor and the minimum speed springs 8 abut the retainers 7 whilst the maximum-speed springs 13, 14 abut spring retainers 9 that have conical surfaces that may abut conical collars 10 on the bolts 12 and be lifted by the engagement of the conical surfaces with conical bores in the retainers 7. To convert to a constant speed governor, the retainer 9 is replaced by one shaped that it does not engage the collar 10 in any position of the weights. The arms 4 are connected to a control member 6, that has claws 21 guided in slots in the support 2 and on the shaft, by pins 5 that have flattened ends that may engage slots in the arms 4 or the claws 21. Alternatively, when the governor is mounted on the end of a shaft, the claws 21 are replaced by a member that extends across the support 2 and is connected to the control member. The nuts 11 are locked on the bolts 12 by conical washers 24 sprung into grooves and the pins 3 may be similarly held in position. Alternatively as shown in Fig. 2, the pins 3 are shortened and the edges of the arms are pressed over. The bolts 12 are screwed into the support and caulked at M.
Patent GB-988466-A (GB)
Title: A process for the preparation of a catalyst for the polymerisation of olefins
IPC: C08F4/12
Filed: 1961-08-09
Abstract: Olefins which are gaseous at the temperature and pressure of polymerization are polymerized by bringing into contact therewith a catalyst prepared by reacting anhydrous aluminium chloride with an aromatic hydrocarbon or substitution derivative thereof in the presence of a gaseous hydrogen halide to form a liquid complex and adding to the complex aluminium powder and a halide of a metal selected from titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum and tungsten, and maintaining the pressure until absorption of the olefin ceases.  Specified aromatic compounds are benzene, toluene, xylenes, ethyl benzenes, mesitylene, dichlorobenzenes, tetralin and methylnaphthalene. The preferred hydrogen halide is hydrogen chloride. Specified metal halides are titanium tetrachloride, vanadium pentachloride, molybdenum chloride, chromium chloride and hafnium chloride. Examples describe the polymerization of ethylene in the presence of catalysts formed from anhydrous aluminium chloride, benzene, hydrogen chloride, titanium tetrachloride and aluminium powder. The benzene may be replaced by p-xylene, o-dichlorobenzene or nitrobenzene.
Patent GB-853495-A (GB)
Title: Improvements in or relating to liquid propellent rocket motors
IPC: F02K9/48
Filed: 1957-09-13
Abstract: 853,495. Generating combustion products under pressure. BARKER, A. Sept. 15, 1958 [Sept. 13, 1957], No. 28841/57. Class 51 (1). [Also in Group XXVI] In a liquid propellant type of rocket, the combustion chamber is cooled by means of liquid oxygen which is stored at its boiling point but which does not become gaseous when it comes into contact with the wall of the combustion chamber. The rocket motor shown comprises a combustion chamber 14 having a cooling jacket space 6 therearound. Liquid oxygen is supplied from an inlet 3 to the first stage 2 of the pump 1 where its pressure, is increased to about 350 lb. per square inch, the liquid then passing to the second stage 5 where its pressure is increased to about 700 1b. per square inch. The high-pressure liquid oxygen then flows through duct 9 to the combustion chamber cooling space 6, being discharged therefrom as a liquid through duct 10. A portion of the liquid then passes through an expansion valve 11 to a gas and liquid separator 12. The gaseous oxygen discharges through duct 15 and into the combustion chamber 14 through nozzles 16, 17 where it takes part in the oombustion process. Liquid oxygen from the separator 12 flows through duct 13 into which liquid oxygen from the first stage 2 of the pump 1 is discharged and then passes through the second stage 5 of the pump and thence as described above. The second portion of the liquid oxygen from the duct 10 flows through duct 18 where it divides, some flowing through duct 19 to the nozzle 16 where it is atomized by gaseous oxygen flowing through duct 15 to the rocket combustion chamber 14. The remainder of the liquid oxygen flowing through duct 18 enters the auxiliary combustion chamber 20 to which fuel is also supplied through duct 24 and nozzle 23. Combustion gases from the auxiliary chamber 20 are utilized to drive the turbine 7 and finally discharge through duct 21 into'the rocket combustion chamber 14. The turbine 7 drives the liquid oxygen pump 2, 5 also the fuel pump 8, a portion of the fuel from the pump passing to the auxiliary combustion chamber 20, the remainder flowing through duct 25 and nozzle 17 to the rocket combustion chamber.
Patent GB-637751-A (GB)
Title: Improvements in building structures provided with facing elements and in the means for attaching the latter
IPC: E04B2/56
Filed: 1947-10-29
Abstract: 637,751. Walls and partitions; tiles. SHEPPARD, E. L. Oct. 29, 1947, No. 28894. Convention date, Oct. 29, 1946. [Classes 20 (iv) and 87 (i)] [Also in Group XI] A wall or partition comprises an open-sided quadri lateral frame and a facing member adapted to clos the open side, opposite side of the member having yieldable flanges which fi into the frame, the oute surfaces of the flanges hav ing projections adapted to snap into co-operating recesses in the inner faces of the frame to retain the facing member in position. In the form shown the frame is built up from a number of vertical and horizontal plywood strips 1 and 3 which are slotted together to form an " eggcrate " structure so providing a plurality of open-ended cells, the inner faces of which are provided with grooves 5. The facing members 6, [see Fig.3],  which may be of an opaque, translucent or transparent plastic, a synthetic resin or of moulded rubber or sheet metal, have a body part 7 surrounded by yieldable flanges 8 along the middle portion of the outer edge of which are ridge-like projections 9. In constructing the wall or partition, the " eggcrate " frame is secured in position and a facing member, with its flanges held sprung inwards, pushed into each cell until the projections 9 snap outwardly into grooves 5. When complete the wall has the appearance of a tiled or glass brick wall, particularly when the spaces between the members 6 are filled with mastic composition 10.
Patent GB-268250-A (GB)
Title: An improved two-part rudder for ships
IPC: B63H25/38
Filed: 1926-11-16
Abstract: 268,250. Oertz, M. April 15, 1926, [Convention date]. Rudders supported behind a faired post are constructed with upper and lower oppositely offset blade portions. The offset is as shown in end view, Fig. 3, and in sectional plan, Fig. 4, the sections forming with the post an aerofoil shape and having the maximum offset at the level of the propeller shaft. The vertical section containing the axis is double convex instead of rectangular. Ordinary rudder posts are sheathed to provide the required contour.
Patent GB-855418-A (GB)
Title: Improvements relating to dumper vehicles
Inventor: DEARDEN BRIAN BURTON
IPC: B60K17/04
Filed: 1958-09-10
Abstract: 855,418. Motor vehicle transmissions. JOHNSON (MACHINERY) Ltd., C. H. Sept. 7, 1959 [Sept. 10, 1958], No. 28992/58. Class 79(2). The drive shaft and driven axle of a vehicle, especially a dumper, are connected by a flat rubber or like resilient belt having a long steel helical cord embedded in it to take the driving tension, and a series of transversely arranged teeth or ribs to engage corresponding recesses in the driving and driven pulleys which are mounted on their corresponding shafts and partly supported on a common, rigid, non-flexing element on the vehicle chassis. A pulley 5 is splined to the output shaft 1 of a dumper drive unit and is partly mounted upon roller bearings 6 upon a stub shaft 7 attached to a rigid casing 8. A larger pulley 14 is coupled to a flange of the driven axle 3 of the vehicle and is also mounted upon a bearing 16 carried by a stub shaft 17 attached to the casing 8. The pulleys 5 and 14 are coupled by the driving belt 18 and the casing 8 is attached to the vehicle at 20.
Patent GB-935786-A (GB)
Title: Improvements in and relating to obturator cocks having cylindrical plugs
IPC: F16K5/18
Filed: 1961-08-11
Abstract: 935,786. Valves. H. SALMEN. Aug. 11, 1961 [Aug. 12, 1960], No. 29046/61. Class 135. A cylindrical plug cock comprises a casing 6 having a lining 7 of synthetic material and a cylindrical plug 1 of synthetic material. The plug is formed with upper and lower grooves 8, 9 which receive 0-ring seals 2, 3 and recesses 10 which receive sealing cap members 4, 5 having a diameter larger than that of the flow passages 14, 15. The cap members are preferably formed with ports 12, 13 which allow fluid toact on the back of the caps to increase the seal with the casing. An actuating plug 16 may be cast into the cylindrical plug. The plug and lining may be made of a resin such as polyester resins, hard P.V.C., or P.T.F.E.
Patent GB-1533366-A (GB)
Title: Method of manufacturing sliding clasp fastener
IPC: B29D5/00
Filed: 1977-07-12
Abstract: 1533366 Sliding clasp fasteners YOSHIDA KOGYO KK 12 July 1977 [12 July 1976] 29173/77 Heading E2S In a method of making separate sliding clasp fasteners from a continuous pair of interengaged stringers 10, 11 whose tapes are of thermoplastics fibres, the stringers are fed to a first station where an element-free gap 19 is made, and the top severed at 20, by a heated punch which fuses the fibres, a bottom stop 22 being applied (Fig. 2). As the stringers 10, 11 advance to a second station, a slider 23 is applied, and then a top stop 26 is fitted (Fig. 4) simultaneously with the next punch stroke at the first station.
Patent GB-935819-A (GB)
Title: Improvements in spark machining apparatus
Inventor: BRUMA MARC
IPC: B23H7/30
Filed: 1962-07-30
Abstract: 935,819. Electro - erosion. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. July 30, 1962 [Aug. 11, 1961], No. 29207/62. Class 83 (4). In a spark erosion apparatus the weight of the electrode 1 and its support 5 is balanced by upwardly-acting fluid pressure, and electromechanical means 9, 10 which have a practically instantaneous response, are provided for maintaining the spark gap constant. The electrode support 5 operates within a cylinder 6 and is sealed thereto by a diaphragm 13 to the underside of which constant pressure liquid or air is supplied through valve 12 from source 11. Gap adjustment is affected by means 9, as described in Specification 800,450, which drives through an electromagnetic clutch 10 a screw 8 threaded into the support 5. Balls 14 are provided to reduce friction and the screw is reversible so that it can be rotated by upward movement of the support 5 under fluid pressure. The workpiece 2 is immersed in a bath 15 containing dielectric liquid 16.
Patent GB-1079729-A (GB)
Title: Process for the preparation of 2-alkyl-1,3-dicarbonyl compounds
Inventor: SCHICK HANS
IPC: C07C45/54
Filed: 1966-06-30
Abstract: 2-Alkyl-1,3-dicarbonyl compounds are prepared by a process wherein an enol ester of a ketone with at least 4 carbon atoms or of an aldehyde with more than 3 carbon atoms is bis-acylated, in an appropriate solvent, on the 2-carbon atom of the C = C bond by a reactive carboxylic acid derivative in the presence of a Friedel-Crafts catalyst, followed by decomposition of the reaction mixture with water. Suitable acid derivatives are anhydrides and chlorides, e.g. succinic anhydride and dichloride, glutaric acid dichloride, and acetyl chloride, and suitable carbonyl compounds whose enol esters may be used are methyl ethyl and butyl ketones, dipropyl ketone and acetaldehyde. If a cyclic ketone, e.g. cyclohexanone, is used, the product is a 2-o -carboxyalkyl-1,3-diketone. The preferred catalyst is AlCl3, and dichloroethane, nitrobenzene and nitromethane are suitable solvents.  The acid derivative, enol ester and catalyst are preferably used in a ratio of 1:2:4 respectively.
Patent GB-1278624-A (GB)
Title: Apparatus for the continuous casting of metal
IPC: B22D41/50
Filed: 1969-06-10
Abstract: 1278624 Continuous casting NIPPON KOKAN KK 10 June 1969 [11 June 1968] 29474/69 Heading B3F [Also in Division F4] A nozzle 1 with a closed end 5 discharges metal from a vessel 13 through at least one downwardly-directed outlet beneath the bath surface (which may be covered by flux 15). The angle # of the outlet is obtained from an equation, 95 - 7À5 L/D Œ 15 where L and D are the casting width and thickness. The bore of the nozzle may be elliptical or polygonal in crosssection.
Patent GB-599005-A (GB)
Title: Meat or like slicing machines
IPC: B26D1/143
Filed: 1945-11-07
Abstract: 599,005. Slicing-machines. METCALFE IDEAL PRODUCTS. Ltd., and McMiLLAN, J. Nov. 7, 1945, No. 29634. [Class 28 (ii)] In a slicing-machine of the type having a rotatable knife and a reciprocable table for supporting the comestible to be sliced, the table is secured to a slide 20 having limited reciprocable movement with respect to a supporting slide 11 which in turn has limited reciprocable movement with respect to the base 12 of the machine. This arrangement facilitates the use of bases of the same size in the production of both double- and single-slide machines.
Patent GB-801875-A (GB)
Title: Wall construction
IPC: E04C2/34
Filed: 1956-09-28
Abstract: 801,875. Electrically - heated panels. SCURLOCK, J. C. Sept. 29, 1956, No. 29642/56. Class 39(3) [Also in Group X] A panel of metal or synthetic resin provided with a number of hollow, polyhedral indentations extending in opposite directions from a medial surface of the panel includes an insulated wire 30 serving as an electric heating element and extending in zig-zag fashion between ceramic spools 26 mounted on angle-shaped brackets 24 attached to opposite edges of the panel, the upper face of the panel being covered with an insulating layer 32 of mineral wool or spun glass; a marginal row of indentations. is bent over the layer.
Patent GB-1245886-A (GB)
Title: Cleaning machine for glassware or the like
Inventor: HILDEBRAND E
IPC: B01L99/00
Filed: 1969-06-11
Abstract: 1,245,886. Washing containers. ED. HILDEBRAND ING. AG. 11 June, 1969 [11 June, 1968], No. 29678/69. Heading B8T. [Also in Divisions A4 and F2] A machine for cleaning glassware 29, 30 comprises two groups of nozzles 3, 4 adapted to be supplied with cleaning fluid through a distributor 5 having a stationary case 6 and a rotatable head 7, the group of nozzles 3 being connected to the head and the group of nozzles 4 being connected to the case. The group of nozzles 3 consists of two nozzle pipes 9, 10 mounted in the head which is rotated by a motor via a spindle 8. The case 6 is connected to a supply of cleaning fluid and has outlet pipes 13, 14 feeding the group of nozzles 4 which comprise nozzle pipes 11, 12 having stub pipes 27 and vertical nozzles 26. A tubular portion of the head 7 projects into the case 6 and is provided with three equally spaced holes so that as the pipes 9, 10 rotate to spray the glassware 29 in a basket 28, the outlets leading to the pipes 13, 14 are intermittently opened and closed to ensure intermittent spraying of the glassware 30.
Patent GB-1306179-A (GB)
IPC: C08F4/06
Filed: 1971-06-24
Abstract: 1306179 Dimerization SOLVAY & CIE 24 June 1971 [29 June 1970] 29709/71 Heading C2C A dimerization or polymerization which employs an amalgam as a reactant and wherein a liquid phase containing the monomeric reactant is purified to remove chromium and nickel ions before treatment with the amalgam, is characterized in that the concentration of chromium or nickel ions in the liquid phase in the reactor is brought below 1 part per million by weight. An example describes the dechlorinating dimerization to adiponitrile of betachloropropionitrile dissolved in dimethyl sulphoxide using sodium amalgam, wherein chromium is removed from the liquid phase by an ion-exchange method.
Patent GB-1437541-A (GB)
Title: Bonding
IPC: B29C65/00
Filed: 1973-06-22
Abstract: 1437541 Mattresses WEGU GUMMI-UND KUNSTSTOFFWERKE WALTER DRABING KG 22 June 1973 [2 Dec 1972] 29762/73 Heading A4M [Also in Division B5] A method of making an inflatable article e.g. an air mattress, air cushion or inflatable boat including two panels 1, 2 of sheet material comprises providing an uncured rubber coating on one surface of each panel, superimposing the panels with the rubber coated surfaces thereof facing each other and with an interposed web 4 of non-woven fabric between the panels and adjacent to substantially the entire rubber-coated surfaces thereof, and applying pressure and heat to selected areas 5, 6, 7, 8 of the panels and the interposed web to selectively bond those regions of the panels and the web together. The method may be effected between a metal press plate 10 having projecting faces at 5, 6, 7 and 8 and adapted to be heated and a base-plate 11 formed of elastically yielding but inherently stiff material e.g. plywood. After hot pressing, vulcanizing is effected in conventional matter. In a modification of the method, two webs are interposed between the panels. The panels may be of textile material and the web of natural fibres e.g. wool or cotton, cellulose acetate fibres or of synthetic fibres e.g. polyamide, polyester, polyacrylonitrile, polyethylene, polypropylene or polyvinyl choride and may have been consolidated e.g. by needling, by a bonding agent, by a solvent or by a combination thereof.
Patent GB-1268757-A (GB)
Title: Improvements relating to cigarette lighters
Inventor: NORMAN DAVID
IPC: F23Q2/46
Filed: 1968-06-21
Abstract: 1,268,757. Cigarette lighters. RONSON PRODUCTS Ltd. 17 June, 1969 [21 June, 1968], No. 29853/68. Heading F4F.  In a cigarette lighter including a flint wheel, a carrier member 6 mounted for rotation about the flint wheel axis 5 and operatively connected with the flint wheel by a clutch spring 7, and a movable finger piece 8 for effecting rotation of the carrier member, the finger piece and carrier member are directly connected by a plastics member 10 which acts as a hinge to translate movement of the finger piece into rotation of the carrier member. The carrier member 6, finger piece 8 and connecting member 10 may be formed integrally of a plastics material such as polypropylene, or the connecting member may be secured to the finger piece and carrier member by welding or adhesive.
Patent GB-1004768-A (GB)
Title: Improvements in or relating to universal joints
Inventor: MAXWELL-HOLROYD LESLIE
IPC: F16D3/205
Filed: 1963-07-27
Abstract: 1,004,768. Universal joints. B.R.D. COMPANY Ltd. July 7, 1964 [July 27, 1963], No. 29892/63. Heading F2U. To reduce noise and vibration in operation of a universal joint, for a motor-vehicle steering shaft assembly, of the kind wherein partspherical rollers 13, carried on transverse trunnions 12 fast with a driving shaft 10, are axially slidable in grooves 17 in a housing 16, coupled to the vehicle wheels, the rollers 13 are made either wholly of polyurethane or of polyurethane with a suitable core of silicone rubber. The usual gaiter encloses the joint at one end of the steering shaft assembly, the other end being connected to the drive transmission through the usual Hooke's-type joint 11.
Patent GB-300630-A (GB)
Title: An improved process for the preparation of alkali sulphates
IPC: C01D5/10
Filed: 1928-10-16
Abstract: 300,630. Chemieverfahren Ges. Nov. 18, 1927, [Convention date]. Sodium and potassium sulphates are prepared by double decomposition of sodium or potassium chloride with magnesium sulphate in a solution of ammonium chloride in aqueous ammonia. The sulphate remains in solid form and the magnesium chloride goes into solution. In an example, magnesium sulphate in the form of kieserite, potassium chloride, and ammonium chloride are warmed with water until the kieserite is hydrated, and after cooling ammonia is added.
Patent GB-1274715-A (GB)
Title: Detoxification of dithiophosphoric esters
Inventor: SANTI ROMANO
IPC: C07F9/165
Filed: 1969-06-13
Abstract: 1,274,715. Detoxification of dithiophosphoric esters. MONTECATINI EDISON S.p.A. 13 June, 1969 [19 June, 1968], No. 30040/69. Heading C2P. The toxicity to warm-blooded animals of a dithiophosphoric ester of the general formula where R is C 1-5  linear or branched alkyl, and R<SP>1</SP> is phenyl or carboethoxymethyl, is reduced by adding thereto, either undiluted or in solution, a bromide or iodide of an aliphatic or aromatic carboxylic acid. Preferably, the acyl halide is added to the ester at a temperature from 70 to 90 C., and the treatment is carried on for ¢ to 5 hours, the excess acyl halide and any volatiles then being removed. The treated compounds may be used as pesticides.
Patent GB-336410-A (GB)
Title: Improvements in or relating to feed pumps particularly for locomotives
IPC: F22D11/02
Filed: 1929-10-03
Abstract: 336,410. Knorr-Bremse Akt.-Ges. Oct. 5, 1928, [Convention date]. Actuating by steam pressure; air vessels.- In a steam pump for locomotives &c. the space between the steam and water cylinders a, b is formed into a closed chamber d serving as an enlargement of the suction air vessel.
Patent GB-1470700-A (GB)
Title: Gear measuring and marking
IPC: G01M13/02
Filed: 1974-07-08
Abstract: 1470700 Measuring and marking gears WERKZEUGMASCHINENFABRIK OERLIKONBUHRLE AG 8 July 1974 [12 July 1973] 30109/74 Heading G1M A pinion 11 of a pair of bevel gears is run with the other gear (not shown) of the pair in a tester 21, only diagrammatically shown, and measured to determine a first deviation value from nominal in the distance along the gear axis between the back face 12 of the gear and the axis of the paired gear (not shown). The gear 11 is then mounted alone in a holder 10, as shown, for movements in directions A and B so that a feeler 24 and the front gear face 13 may be brought to abut the surface of a printer 14 and measure also a second deviation value which is the distance between the face 13 and the back 12. Both measurements are passed via storage units 19, 20 to a computer 17 which adds them together and transmits them via conductor 16 to the printer 14 having a resiliently mounted wheel 15 which is electrically controlled to engrave a value on the face 13. A pair number for the matched gears is also printed.
Patent GB-993591-A (GB)
Title: Insecticidal compositions
Inventor: WICKHAM JOHN CHARLES
Filed: 1961-08-22
Abstract: Insecticidal compositions contain as active ingredients safroxan (4-(31,41-methylenedioxyphenyl)-5-methyl-metadioxane) and either 2-chloro-5-isopropylphenyl N-methylcarbamate or 3-isopropylphenyl N-methylcarbamate.  The compositions may take the form of dusts, dispersible or wettable powders, or oil concentrates for subsequent dilution.  Specification 852,920 is referred to.