baber/WOPTO huggingface dataset:
Patent GB-1018282-A (GB)
Title: Improvements in or relating to the production of polymers or copolymers of formaldehyde
IPC: C08G63/672
Filed: 1962-08-22
Abstract: Anhydrous formaldehyde or trioxane is polymerized or copolymerized in the presence of an alkylene dicarboxylate of formula <FORM:1018282/C3/1> where R is a -CH2- or -CH(CH3) radical, R1 and R11 a C1- 18 alkyl, a cycloalkyl or an aryl group and n is 1 to 3 to form a partially acylated polyoxymethylene polyol, and then heated to completely esterify the partially acylated polyoxymethylene polyol in situ.  Specified alkylene dicarboxylates are methylene diacetate, methylene dipropionate their dimers, trimers or mixtures and ethylene diacetate. The polymerization may take place in the presence of a catalyst e.g. metal salts, metal organic compounds, phosphines, arsines, stilbenes, amines, polyamines and hydroxy polyamines, e.g. tri-n-butylamine, tetraalkylalkylene diamines and copper salts, by batch or continuous processes.  Specified comonomers are ethylene oxide, propylene and butylene oxide, dioxalane, neopentyl glycol formals, pentaerythritol acetals, glycerol acetals, trimethylolethane acetals, trimethylolpropane acetals, sorbitol acetals, acetaldehyde, propionaldehyde and benzaldehyde.  An antioxidant e.g. phenothiazine, 2-mercaptobenzimidazole, diphenylamine, phenyl - alpha - naphthylamine, bis(beta - naphthylamino) - p - phenylenediamine, 4,41 - butylidene bis(3 - methyl - 6-tertiary butylphenol) and 5-ethyl-10,10-di-phenylphenazasiline.  The complete esterification of the acylated polyol may be carried out used an alkaline esterification catalyst e.g. the sodium, potassium, lithium, rubidium and cesium salts of organic and inorganic acids.
Patent GB-1273148-A (GB)
Title: Liquid-vapour contact means
Inventor: GARRETT MICHAEL ERNEST
IPC: B01D3/22
Filed: 1968-07-05
Abstract: 1,273,148. Rectification and like columns. BRITISH OXYGEN CO. Ltd. 1 July, 1969 [5 July, 1968], No. 32354/68. Heading B1R. A rectification or like column has two sets of vertically spaced rectangular contact trays 1, 3, 5, 7 and 9 and 2, 4, 6, 8 and 10 separated by a vertical partion 11 and downcomers such as 14 connecting for liquid flow trays 1, 4, 5, 8 and 9 and 2, 3, 6, 7 and 10, the arrangement being such that liquid flows in a straight line parallel with the partition 11 on each tray and the direction of flow of liquid on one set of trays being the same and opposite to the direction of flow of liquid on the trays of the other set. The downcomer 14 comprises a trough 12 and an inclined plate 13 with perforations through which the down-flowing liquid passes.
Patent GB-600439-A (GB)
Title: Improvements in or relating to apparatus for removing dust and other impurities frommanufacturing and like operations
IPC: A47L7/00
Filed: 1945-11-30
Abstract: 600,439. Removing dust &c. DALLOW, LAMBERT, & CO., Ltd., and FANTON, E.J. Nov. 30, 1945, No. 32360. [Classes 8 (ii) and 99 (i)] In an apparatus for removing dust, gases, fumes &c. a hood or nozzle is adjustably attached to a two-part telescopic tubular arm A which is connected to a two-part telescopic upright pipe B by means of knuckle joint 2, 3 pivotally connected at I through lugs 4 and 5 by the bolt 6 to permit angular movement of the arm A relative to the pipe B. The tele-. scoping components 2, 3 of the knuckle joint are of rectangular cross section the depth X being somewhere less than the diameter of the arm A to compensate for the different cross sectional area and maintain a uniform flow of air. The telescoping parts of the tubular arms A, B may be set in their adjusted position by clamping rings tightened by locking screws.
Patent GB-432158-A (GB)
Title: Synthetic resin compositions
IPC: C08G63/48
Filed: 1933-12-21
Abstract: Resins are prepared by condensing a partially esterified polyhydric alcohol containing at least two free hydroxyl groups, the acid constituent being a monobasic acid such as benzoic or acetic acids or an acid derived from a vegetable oil or a naturally occurring resin, with the product obtained from the incomplete condensation of a polybasic organic anhydride and a polyhydric alcohol in the presence or absence of a vegetable oil, which may be heat-treated, a natural resin, or an esterified resin.  The partial ester may be heat-treated before condensation or it may be made from a heat-treated oil.  The products, in conjunction with pigments, dyes, nitrocellulose or cellulose acetate may be used in the manufacture of lacquers.  In an example a monoglyceryl ester of linoleic acid is condensed with an initial condensate of glycerine and phthalic anhydride and the product may be dissolved in a hydrocarbon with the addition of a drier.
Patent GB-1148798-A (GB)
Title: Improvements in or relating to rotary disc hoppers
Inventor: BOOSEY FREDERICK ROBERT
IPC: B65G47/14
Filed: 1967-07-14
Abstract: 1,148,798. Hopper for articles. SIGMA INSTRUMENT CO. Ltd. 30 April, 1968 [14 July, 1967], No. 32500/67. Heading B8S. Articles thrown into hopper 1 are discharged therefrom by horizontal rotating disc 2. The articles pass through aperture 3 in wall 5 of the hopper, pass along the channel 6 and are delivered at 4. The wall 5 and channel 6 are formed of bands of wear-resistant spring steel and wall 5 is formed with the gap 3 so that it separates the articles in channel 6 from the articles on the disc 2. The band 5 is secured to hopper 1 by clamps, e.g. 8. A film of oil may be introduced into the hopper to facilitate the discharge.
Patent GB-784573-A (GB)
Title: An improvement in or relating to epicyclic gearing
Inventor: RHODES ALBERT
IPC: F16H3/00
Filed: 1954-11-11
Abstract: 784,573. Variable-speed gearing. BROWN & SONS (HUDDERSFIELD), Ltd., D. Nov. 11, 1955 [Nov. 11, 1954], No. 32616/54. Class 80 (2). Reversal of the direction of a driving shaft a effects a reversal of the direction of the driven shaft e but at a different ratio by means of a sun gear b on driving shaft a, planet pinions c on a carrier member d integral with the driven shaft e, and an annulus gear n. The gears are of helical form so that the reversal of the drive moves the annulus axially for rings of ratchet teeth p, q thereon to engage respectively with teeth r on the carrier d or teeth s on a fixed ring t to give a solid drive in one direction or a reduced drive in the other when the annulus serves as a re-action gear.
Patent GB-361560-A (GB)
Title: Improvements in or relating to methods of manufacturing electron emitting coated cathodes
IPC: H01J9/04
Filed: 1930-10-30
Abstract: 361,560. Thermionic cathodes; electrolysis. ALLGEMEINE ELEKTRICITATS-GES., 2, Friedrich Karl-Ufer, Berlin. Oct. 30, 1930, No. 32643. Convention date, Nov. 8, 1929. [Class 39 (i).] An oxide-coated cathode is produced by converting the surface of a tungsten wire electrolytically into barium tungstate and then reducing the surface in an alkaline bath to barium oxide or carbonate ; the wire is preferably oxidized before such treatment. The wire may be subjected to anodic treatment in a baryta lye. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of an electrolyte consisting of neutral salts of barium alone or with other salts together with carbonic or oxalic acid forming insoluble salts. A coating of thorium oxide may be produced. A coating of copper may be applied to the treated surface. This subjectmatter does not appear in the Specification as accepted.
Patent GB-822150-A (GB)
Title: Electric heating apparatus
IPC: B01D1/00
Filed: 1955-11-25
Abstract: 822,150. Electric heating. STAMICARBON N.V. Nov. 25, 1955 [Dec. 2, 1954], No. 32648/58. Divided out of 822,149. Class 39(3) Apparatus for effecting the method of Specification 822,149 consists of a tank 1 with radially disposed closely spaced electrodes 2 for directly passing electric current through molten material e.g. urea. A non-conductive plate 3 spaces the electrodes, and a stirrer 4 disperses the material into the gaps between the electrodes before it is finally discharged through a conduit 5 to an auxiliary tank 6. The wall of the tank 1 above the liquid level is heated by a steam jacket or heating coil to melt away material caked on the wall. Powdery urea may be fed continuously to the heating tank. Specification 822,419 is referred to.
Patent GB-887988-A (GB)
Title: Improvements in or relating to the production of polymers from monomeric epoxy compounds
Inventor: WADDAN DHAFIR YUSUF
IPC: C08G65/08
Filed: 1959-09-25
Abstract: Olefin oxides are polymerized using as catalyst a mixture of a compound of the formula MRx(Hal)y(OR)z (1) and a compound of the formula M1Ra(Hal)b(OR)c (2) where M is a metal of Group 2 or 3 and M1 a metal of Group 2 to 4 of the Periodic Table, R is alkyl or aryl, Hal is halogen, x, y and z are 0 or integers, provided that when z is an integer, y is zero, and when y is an integer, x is an integer, and x+y+z is the valency of M; and a, b and c are 0 or integers, provided that when a is 0, c is an integer and vice versa, and a+b+c is the valency of M1.  Specified compounds (1) are magnesium diethoxide, ethyl ethoxide, and ethyl chloride; zinc diethyl, diethoxide and ethyl isopropoxide; aluminium triisobutyl, triisopropoxide, ethyl dichloride, triethyl, diethyl chloride and diethyl ethoxide. Specified compounds (2) are zinc ethoxy chloride; aluminium ethoxy dichloride, diethoxy chloride, ethyl ethoxy chloride; titanium triisopropoxy chloride, ethyl diethoxy chloride, ethyl triisopropoxide and phenyl triisopropoxide.  The monomers are defined as having the formula <FORM:0887988/IV (a)/1> where R1 and R11 are hydrogen or hydrocarbon, R111 is hydrogen, hydrocarbon, halohydrocarbon, aryloxyalkyl, alkylaryloxyalkyl or halaryloxyalkyl, and R1 or R11 may be joined to form a cycloaliphatic ring. Examples are epichlorhydrin, ethylene oxide, styrene oxide, propylene oxide, cyclohexene oxide and phenyl-, tolyl-, chlorphenyl- and naphthyl glycidyl ether.  Solvents may be present, temperatures may be from 0 DEG  to 200 DEG C. and pressures up to 40 atmospheres.  Purification of the polymer is described. Products having intrinsic viscosities in ethylene dichloride of up to 4,4 are obtained in the examples. Specifications 785,053, 785,229, 793,065, 854,930, 857,573, 867,452, 875,161 and 875,954 are referred to.
Patent GB-532236-A (GB)
Title: Improvements in or relating to reinforcement for concrete constructions
IPC: E04C5/18
Filed: 1939-07-17
Abstract: 532,236. Reinforced concrete. SMITH, W. H. July 17,1939, No. 32702. Divided out of 532,169. [Group XXII]. [Class 20 (iv)] Reinforcing-bars 1 are positioned in the moulds 2 by means of chairs 3 having one or more U-shaped spring-portions 4 to grip the rods, and outwardly-splayed legs 6.
Patent GB-622133-A (GB)
Title: Improvements in magnetic testing with artificial standard
IPC: G01N27/80
Filed: 1946-11-04
Abstract: 622,133. Magnetic tests and measurements. MAGNETIC ANALYSIS CORPORATION. Nov. 4, 1946, No. 32745. Convention date, Feb. 5. [Class 37] A system for testing magnetic material comprises producing a record representing the characteristics of a standard specimen from which electric fluctuations can be produced to be compared on an indicator with electric fluctuations produced from the specimen to be tested. The standard specimen is moved through the A.C. energized solenoid 2, and the response in the pick-up coil 3 is fed over switch 15 to a recorder 20 to make a permanent record on a magnetic tape or disc 25; this record can be repeatedly reproduced through pick-up 19 for continuous or intermittent portrayal on cathode-ray tube 8. The specimen to be tested is then run through solenoid 2, and pick-up coil 3 is connected over switch 15 or switch 9 to cathode-ray tube 8. If desired, the recorded signals and test signals may be shown simultaneously, one being phase displaced so that the resultant is a straight line if the test specimen is the same as the standard specimen.
Patent GB-729787-A (GB)
Title: Improvements in or relating to propagators for raising plants
IPC: A01G9/20
Filed: 1952-12-27
Abstract: 729,787. Plant propagator. ATKINSON, J. Dec. 23, 1953 [Dec. 27, 1952], No. 32810/52. Class 6 (2). A propagator for plants comprises a box-like structure having end members held apart in spaced relationship by longitudinal elements extending inside the structure, transparent or translucent front and rear walls and roof being supported removably by the end members. The end members may consist of metal corner pieces 1 connected by a panel 2 of approximately half the height of the corner pieces and provided with a bent-down edge to constitute means for lifting the box. The end members are connected together by rods or tubes 4 arranged preferably at two or more levels to provide supports for seed boxes. Angle members 6 are secured adjacent the corner pieces 1 by the rods or tubes 4 and form, with the corner pieces slots for the accommodation of glass or other transparent or translucent panels 8, 9. Metal strips 10, having flanges 11 to support the top panels 12, are held in place behind the panels 8, 9. The corner pieces may be formed of.aluminium extruded in the form shown in Fig. 4, in which case the panel 2 may be formed separately and mounted in the slots Heating and lighting arrangements may be provided. Specification 712,041 is referred to.
Patent GB-397346-A (GB)
Title: Improvements in and relating to safety razors
IPC: B26B21/18
Filed: 1932-11-21
Abstract: 397,346. Safety razors. MILLS, D. S., 293, Garfield Place, Brooklyn, New York, U.S.A. Nov. 21, 1932, No. 32847. [Class 30.] A single- or double-edged blade has a grooved thickened portion, the walls of the groove being at right-angles to the plane of the blade. A double-eged blade, Fig. 10, is grooved along the middle line to accommodate clips 12, Fig. 5, by which it is secured to the holder. A frame 5 is supported on a handle 27 by means of flanges 28, a ball 25, and a screw stem 26. When the blade is placed on the frame and flanges 14 on the slip members c are pressed together the clips slide along the grooves 3 until the flanges 28 are enclosed by the flanges 14. The whole is then clamped together by screwing the socket end 30 of the handle to enclose the flanges 14. The clips 12 are of such a thickness that they lie wholly within the grooves.
Patent GB-325004-A (GB)
Title: Process of and apparatus for filtering and sterilising liquids
IPC: C02F1/50
Filed: 1928-11-09
Abstract: 325,004. Krause, G. A. Nov. 9, 1928. Sterilizing water &c. - Water and other liquids are sterilized and preserved by bringing them into contact with metals having and oligodynamic action or salts or other compounds or alloys thereof, the liquids being filtered before or after the treatment. In one form, Fig. 1, the liquid is passed through an inlet 4 into a vessel 2 filled with oligodynamic metal 12 and containing one or more Berkefeld filters 5 through which the liquid passes out of the vessel leaving by the pipe 6. The bottom of the vessel 2 has a valve 8 through which it can be emptied. In another form, Fig. 2, the liquid passes first through a vessel 9 filled with oligodynamic metal 12 from which it flows through a branch 4 to the filter vessel 2. In a modification, the liquid is filtered before the oligodynamic treatment. In one construction, Fig. 4, the liquid passes from vessel 2 through a filter 5 to a container 9 provided with the oligodynamic material 12. In another form, Fig. 5, the liquid passes upward through a container 2, the lower portion 3 of which, is filled with quartz sand or other filter material above which and preferably separated therefrom by a sieve 11 an oligodynamically active metal substance 12 is disposed. In further forms, the oligodynamic treatment may be obtained by forming the vessel or the inlet or outlet conduits for the liquid of oligodynamic metal or by coating or impregnating their inner surfaces with metal. The oligodynamic metal substances may be arranged between two filters, for example by filling a vessel with alternate sand and metal layers. Reference has been directed by the Comptroller to Specifications 279,085 and 293,385.
Patent GB-877529-A (GB)
Title: Improvements in pistons for internal combustion engines
Inventor: CROSS ROLAND CLAUDE
IPC: F02F3/04
Filed: 1959-09-28
Abstract: 877,529. Pistons. CROSS MANUFACTURING CO. (1938) Ltd. July 5, 1960 [Sept. 28, 1959], No. 32863/59. Class 122 (1). Piston slap is prevented or minimized by a metal strut or struts 3 having a lower coefficient of expansion than the metal of the piston 1 and comprising two legs integrally connected by an arcuate bearing piece 4 housed in an opening 2 in the piston wall and adapted to bear against the cylinder wall, the legs extending laterally across the piston interior and bearing against the inside surface of the opposite side of the piston wall. The inner ends 5 of the legs abut or are welded together to form a closed end located in a recess 7 in the piston wall. The piston is of aluminium or aluminium alloy and the struts 3 may be made from flat spring steel strip. The bearing piece 4 may be concentric with the piston or have a smaller radius than that of the outside of the piston and may bear directly against the cylinder wall or indirectly through an arcuate strip or a split bearing ring housed in a groove in the piston. Specifications 843,248, 843,254 and 843,258 are referred to.
Patent GB-259432-A (GB)
Title: Improvements in buffers for railway and the like vehicles
IPC: B61G11/08
Filed: 1925-12-30
Abstract: 259,432. Spencer, Moulton, & Co., Ltd., G., Spencer, A., and Glascodine, R. T. Dec. 30, 1925. Buffers; draw-gear.-A central buffer comprises a plate 3 fixed to the headstock 4 and provided with a marginal flange 13 into which the marginal flange 12 of a rocker bearing plate 11 loosely fits. The upper and lower sides of the flange 13 are slotted to receive the elongated portion 19 of a trunnion 18 on which the bearing plate 11 is mounted so that the latter can move longitudinally in buffing or rock when the vehicle is on a curved track. The plates 3, 11 are separated by springs 1 mounted on bolts 6, the heads 5 of which are ribbed at 8 te engage slots 9 in the plate 11. The draw-bar 2 passes through transversely disposed holes in the buffer and headstock and is secured at each end to the vehicle frame by a round or oval spring 32 placed between washers 31, 33, the washer 31 being provided with a rib 30 which engages in a slot 29 in a washer 28 which is provided with a rib 27 at right-angles to the slot 29 and which engages in a slot 26 formed on a bearing plate 25 fixed to the vehicle underframe, The Provisional Snecification states that a cylindrical buffer plunger may bear on a rocking plate attached to the opposing vehicle.
Patent GB-1383676-A (GB)
Title: Process for making diethylamino pyrimidine derivatives
IPC: C07D239/46
Filed: 1972-07-14
Abstract: 1383676 2 - Diethylamino - 4 - hydroxy - 6- methyl pyrimidines IMPERIAL CHEMICAL INDUSTRIES Ltd 5 Oct 1973 [14 July 19721 33080/72 Heading C2C  Compounds of Formula I wherein R represents a hydrogen atom or an aliphatic group of 1 to 4 carbon atoms, are obtained by heating the corresponding 2-nitraminopyrimidine with diethylamine and an inert liquid diluent (e.g. dimethylformamide), at 130‹ to 190‹C. in a closed vessel under autogenous pressure. Examples describe the preparation of compounds of Formula I wherein R is -H and n-C 4 H 9 . The compounds of Formula I are pesticides.
Patent GB-1359208-A (GB)
Title: Hydraulic power-assisted steering unit especially for motor vehicles
IPC: B62D5/24
Filed: 1971-07-14
Abstract: 1359208 Power steering AUTOIPARI KUTATO INTEZET 14 July 1971 [18 July 1970] 33114/71 Heading B7H In an hydraulic power-assisted steering unit, the steering box 1 is closed by covers 5, 6 at its ends and contains a power piston 9 working in chambers 2, 3. The steering shaft 14 turns a nut 12 which carries one end of a two-armed lever 39 which is pivoted at its centre by ball joint 40 in a passage 38 formed in piston 9 and operates, at its other end, the control valve spool 16 which is slidable in a housing also formed in the piston 9. Pressure fluid is supplied to inlet 21 whence it flows along passages 22, 23, 24 to annular groove 25. When due to driver steering action in one direction the spool 16 is displaced upwards (Fig. 2) the fluid passes through duct 35<SP>1</SP> to chamber 2 forcing piston 9 to the right (Fig. 1) and when due to opposite direction of driver steering action the spool 16 is displaced downwards, fluid passes via groove 36 and passage 37 to chamber 3, forcing piston 9 to the left. The pressure in chamber 2 exists at both ends of valve spool 16, but since a piston 48 is rigidly attached to one end wall 47 of the valve housing and is slidable in a bore 46 of the spool, the spool is urged downwards (Fig. 2) against the action of spring 50 providing feel for the driver in said one direction of driver steering action which is fed back via lever 39. In the said opposite direction of driver steering action, feel for the driver is obtained if the spool is urged upwards by pressure derived from the chamber 3 acting within an axial bore of the spool.
Patent GB-618648-A (GB)
Title: Improvements in tools for wood working machines
IPC: B27G13/10
Filed: 1946-11-07
Abstract: 618,648. Rotary wood cutters. AULAGNE, 'C. Nov. 7, 1946, No. 33159. Convention date, June 19, 1945. [Class 145 (i)] A tool for wood working machines comprises one or more tubular shaped members a, the opposite ends a<SP>1</SP> of which have the shape of cylindro-conical openings adapted to form the cutting edges of the tool. In the central longitudinal part of the tool a there are provided substantially oval openings a<SP>2</SP> to enable a fixing screw b to pass through to the half cradle c<SP>1</SP> formed by the boss c. The cradle c<SP>1</SP> also forms a guide which facilitates accurate positioning of the tool on the boss. The head of screw b is recessed in a segment e which fits the circular internal longitudinal cross-sectional shape of tool a. A transverse screw f locks the fixing screw b.
Patent GB-755914-A (GB)
Title: Drafting arrangement for textile fibres
IPC: D01H5/04
Filed: 1954-11-17
Abstract: 755,914. Gill boxes; indicating arrangements. SOC. ANON. INTEREMIN. Nov. 17, 1954 [Nov. 21, 1953; Aug. 10, 1954], No. 33230/54. Classes 120 (1), 120 (2) and 120 (3). A gill box has an upper roller that is covered with resilient material, weighted and positively driven and a lower roller which is fluted and adjustable parallel to the direction of movement of the fallers. The upper roller 3 is driven by a chain 3b and is pressed against the fluted lower roller 4 which is carried in ballbearings in slidable supports 5 that can be clamped in position by handled members 7. A pointer 5a and scale 2d are employed to facilitate adjustment. If desired, end portions of the lower roller 4 may be formed with sharp teeth that bite into the resilient cover of the roller 3 to prevent slip between the rollers.
Patent GB-965289-A (GB)
Title: Diffused junction type silicon rectifier units
IPC: H01L23/051
Filed: 1961-09-15
Abstract: 965,289. Semi-conductor rectifiers. TOKYO SHIBAURA ELECTRIC CO. Ltd. Sept. 15, 1961 [Sept. 16, 1960], No. 33258/61. Heading H1K. A diffused junction silicon rectifier consists of a circular silicon wafer 1 soldered between concentric copper electrodes 2, 3 of a diameter at least equal to that of the wafer and of a thickness equal to at least onesixth of the wafer diameter. The arrangement distributes thermal stresses symmetrically. The silicon wafer may comprise boron and phosphorus and may be nickel-plated before being soldered with a lead-silver solder to the copper electrodes, which may be gold-plated.