baber/WOPTO huggingface dataset:
Patent GB-492319-A (GB)
Title: Improvements in or relating to the manufacture of abrasive-coated articles
IPC: C08L61/10
Filed: 1937-03-19
Abstract: Abrasive-coated articles such as sheets, discs and belts are made by coating a backing material with a resinous liquid made by dissolving a normally solid resin in a normally liquid heat-hardenable synthetic resin and with abrasive grains and heating to harden the resinous liquid.  The backing material may comprise a plurality of layers united by a similar resinous liquid.  Plasticizers such as tricresyl phosphate and dibutyl phthalate may be added to the resinous liquid. Examples describe: (1) sizing drill with a liquid phenolformaldehyde resin and then applying a binder made by dissolving a solid phenolformaldehyde "A stage" resin in the liquid resin used for sizing; the coated cloth is then united with a web of hydrated cellulose by pressure rolls; the composite backing is then coated with a heated resinous liquid similar to that used as the adhesive, abrasive grain applied, the adhesive set by cooling and heat-treated, after which abrasive discs are cut from the web; (2) making sand-paper, using a binder made by dissolving a phenol-reacted oil-modified alkyd resin made by reacting together glycerol, phthalic anhydride, linseed-oil fatty acids, phenol and formaldehyde in a liquid initial condensation product of glycerine, phthalic anhydride and linseed-oil fatty acids.  Specification 462,697 is referred to.
Patent GB-945263-A (GB)
Title: Improvements in or relating to a pressure fed rocker shoe bearing
IPC: B24B41/04
Filed: 1961-03-06
Abstract: 945,263. Bearings &c. E. A. THOMPSON. March 6, 1961 [March 14, 1960], No. 8175/61. Heading F2A. A journal bearing assembly of the rocker shoe type comprises a main housing 10 with coaxial bores 18, 20 with which are located bearing cartridges 22 and 24, respectively. Each bearing cartridge consists of an outer sleeve 32 within which are rockably mounted two or more bearing segments or shoes 36 and adjusting shoe 40, which carry the shaft or spindle 26. By hydraulic means, circumferencial movement of the shoe 40 against cam surface 42 is obtained such that radial clearance between the shaft 26 and bearings shoes may be adjusted. Conduits throughout the main housing interconnect with passages in the rocker shoes for the circulation of lubricant under pressure from sump 60 to longitudinal grooves 50 close to the leading edge of each shoe and thence back to the sump. In addition to rotation the spindle may be reciprocated within the bearings 22, 24 and this movement is controlled by hydraulic pressure acting through pistons 78 on to thrust rings 67, 69 at each end of the main housing. Fluctuation in pressure, produced by a pulsating mechanism, applied to one thrust ring arrangement acting against a constant pressure at the other thrust ring promotes an axial oscillatory movement of the shaft.
Patent GB-949530-A (GB)
Title: Improvements in collapsible casings for broadcast receivers
IPC: H04B1/08
Filed: 1962-03-02
Abstract: 949,530. Cases for electrical equipment. R. H. G. DANNENBERG, [trading as J. KEIL [Firm of]]. March 2, 1962 [Oct. 5, 1961], No. 8180/62. Heading H1B. [Also in Divisions B8 and H3] A casing for housing a television receiver set or radio receiver comprises a collapsible casing 1 made up of a plurality of rigid wall sections 7 spaced apart and connected by flexible hinge members 9 which latter form rounded edges when the casing is erected. The collapsible casing 1 comprises three wall sections 3, 4, 5 of which sections 3, 5 are the sides and section 4 the top, an additional section 6 attached to the section 4 forming the back of the casing. As shown in Fig. 2, the wooden rigid wall sections 7 are rebated at the edges 8 and leather hinge members 9 are inserted into the rebates. A plastic lining 10 covers the inside surfaces of the wooden panels and also the inside faces of the leather strips, and the outside surfaces of the panels and strips are covered with a layer of foamed plastic material 11 and plastic skin 12. When the wall sections have been united, a " comer lining " as shown in Fig. 2 is formed. A base 2 is secured to flange portions 15 of the side walls 3, 5 and a fixing flange 14 for the receiver is attached to a panel 7 by countersunk screws S. In the embodiment of Fig. 4 (not shown), no internal lining or external skin are provided and the panels are provided with chamfered edges instead of separate cut edges 8<SP>1</SP> of Fig. 2. In Fig. 5 (not shown), the clearance between the wooden panels at the corners is greater than their thickness leaving a recess which accommodates a corner reinforcement of wood or other rigid material when the easing is erected.
Patent GB-972509-A (GB)
Title: Machine welded metal grating
IPC: B23K11/00
Filed: 1962-03-02
Abstract: 972,509. Making gratings; welding by pressure. G. G. GREULICH. March 2, 1962, No. 8209/62. Headings B3A and B3R. A welded metal grating comprises a number of parallel upright beams with downwardlyextending slots, parallel cross bars extending through the slots and projecting above the beams and top bars extending along the top of each beam through notches in the cross-bars, the tops of the beams having narrow vertical projections beside the slots and the top bars being electric resistance welded to the beams at the projections and to the cross-bars in the notches. The beams 1, Fig. 1, have shallow recesses 7 which define narrow projections 8 on each side of the slots 4 and the cross-bars 2 which engage in the slots 4 have at each slot position tapered notches 5 having upward projections 9 at the same level as projections 8. The top bars 3, Figs. 1 and 3, are assembled above the beams to pass through the notches 5 and engage the projections 8, 9, a roller electrode of a welding machine is moved along the top of each bar 3 with the beams 1 connected to the supply so that resistance welding is effected between the bar and the projections 8, 9. In a modification the top bars 14, Fig. 7, in addition have shoulders 21 which engage and are welded to projections 17 on the cross-bar notches. Further bars 23, Fig. 7, are welded in slots 24 in the cross-bars 15 by wedges 25 on each side of the bars 23 which are welded in by a roller electrode pressing them down.
Patent GB-435125-A (GB)
Title: Improved construction for walls built up of units such as bricks or blocks
IPC: E04B2/74
Filed: 1934-03-16
Abstract: 435,125. Walls. LEFEBURE, V., DOUGLAS, A. H., and IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. March 16, 1934, No. 8315. [Class 20 (iv)] A partition wall or wall lining is built up of units 5, such as bricks or blocks, with the aid of cement, mortar, &c., and comprises vertical battens 2 at the extremities of the wall, as shown in Fig. 1, and a number of angle pieces 6 which are fixed to the battens in such a way that one arm of the angle lies along the batten and the other arm either extends into the jointing medium between adjacent tiers of units or is cemented in a hole in a unit. The units are not provided with interlocking edge portions, and, when of plaster or coke breeze, may be secured to the angle pieces 6 by nailing. The battens 2 are fixed by bolts, screws, plugs, &c. to the adjacent structure 1, which may be an outside wall or column, and in some cases the battens may be rabbeted into the structure 1. The joint between the battens and the units is not cemented, but a moulding 10, Fig. 3, is fitted to one or both sides of the joint. Angle pieces 11 are also provided along the upper tier of blocks and are secured to a batten 13 which is attached to the ceiling. Contact between the batten 13 and top of the wall, even when the ceiling receives a deflection, is prevented by providing an unplastered gap between these parts. Reinforcing strips 17 of hessian or thin metal are provided in the plaster coat. Such a reinforcement may be applied as shown at 15, Fig. 3, adjacent the batten 1 to enable the moulding 10 to be dispensed with, and in this case the plaster coat 14 is continued up to the structure 1, and the edge of the batten 1 is cut away as shown at 16. The base of the wall may be mounted on a strip of rubber, tarred felt, &c.
Patent GB-526432-A (GB)
Title: Improvements in or relating to refrigerating cabinets
IPC: F25D25/02
Filed: 1939-03-15
Abstract: 526,432. Refrigerators. ELECTROLUX, Ltd. March 15, 1939, No. 8326. Convention date, March 16, 1938. [Class 29] A tray 19 adapted for collecting moisture during defrosting of the cooling element 14 is supported by guide rails 20 depending from the element, and is provided with top and bottom flanges 28, 29 so that it may be supported at any of a plurality of levels below the element while serving as a storage member in normal refrigerating periods. The guide rails and tray extend laterally beyond the sides of the cooling element to ensure collection of all defrosting moisture.
Patent GB-1293382-A (GB)
Title: Improvements relating to syphon assemblies for use in flushing cisterns
Inventor: ELLIS EDWARD STANLEY
IPC: E03D1/08
Filed: 1969-02-15
Abstract: 1293382 Syphonic flushing cisterns TWYFORDS Ltd 3 Feb 1970 [15 Feb 1969] 8340/69 Heading E1C A one-piece blow moulded synthetic plastics syphon comprises a bell 1 having an opening 1a through which the spindle of a flushing plunger passes and a syphon conduit 2 the discharge leg 4 of which is formed with an undulation 4a which causes the flow of water through the discharge tube to be substantially constant throughout the flushing. The flared portion 4b downstream of the undulation may be replaced by a shallow radially enlarged portion. A bush which seals the aperture 1a against entry of air is mounted around the spindle of the plunger
Patent GB-588824-A (GB)
Title: Improved process for the production of copolymers
IPC: C08F36/04
Filed: 1944-05-04
Abstract: Conjugated dienes of 4 to 6 C atoms are copolymerized with acrylonitrile, or meth- or chlor-acrylonitrile in solution in an inert solvent at temperatures of 60-80 DEG  C. in the presence of a polymerization catalyst, the process being carried out to obtain a 60 per cent conversion.  As solvents, carbon disulphide, ethylene dichloride, methyl ethyl ketone, benzene and "Solvesso" (Registered Trade Mark) are specified.  The catalyst specified is benzoyl peroxide; promoters such as maleic anhydride and lead tetraethyl may be added.  The catalyst and solvent may be added in increments.  The copolymer may be separated by adding alcohol, drum drying or steam stripping and stabilized by adding phenyl betanaphthylamine or hydroquinone.  Vulcanization may be carried out by heating in the presence of coal tar softener, rosin, ozokerite wax, stearic acid, zinc oxide, benzothiazyl disulphide, diphenyl guanidine, channel black and sulphur.
Patent GB-1450155-A (GB)
Title: Variable speed transmission systems
IPC: F16H63/12
Filed: 1973-02-21
Abstract: 1450155 Change-speed control; valves AUTOMOTIVE PRODUCTS Ltd 14 Jan 1974 [21 Feb 1973] 8515/73 Headings F2D and F2V In a variable-speed transmission in which different ratios are established by friction clutches and/or brakes operated by pressure generated by a pump drawing liquid from a reservoir, the supply of pressure liquid to the clutch/brake actuators is controlled by solenoid valves of which at least the windings are immersed in liquid in the reservoir. The valves, which may be controlled manually or automatically in response to vehicle speed or load changes, may control spool valves which control the clutches and brakes or may control the clutches and brakes directly. One embodiment of solenoid valve has a tube 17, Fig. 2, of non-magnetic material, e.g. aluminium, extending between ported plugs 18, 25 of magnetic material, and containing an armature 32 with closure members 35, 38 at its ends coacting with valve seats 24, 28 in the plugs. The end of the tube 17 containing the plug 25 is received in a spool valve body (not shown) where it is retained by a clip engaging a slot 46, and the remainder of the tube is surrounded by the winding 20 with a yoke 39, e.g. of mild steel. When the solenoid is de-energized the closure member 38 is seated, as shown, so that an actuating chamber of the spool valve is vented through longitudinal passages (not shown) between the plug 25 and the tube 17, a longitudinal groove 33 in the armature, and a passage 19 in the plug 18. Energization of the solenoid moves the armature against a spring 36 to seat the closure member 35 and unseat the member 38 so that pressure liquid supplied to ports 26 in the plug 25 is delivered through the valve seat 28 and the longitudinal passages between the plug 25 and the tube 17 to the actuating chamber of the spool valve to actuate the latter against a spring loading. A modification, dispensing with the spring 36, has a solenoid winding 58, Fig. 4, enclosed by a tube 74 of magnetic material, and an armature 77 with an oblique boring 81 and closure members 78, 79. When the solenoid is energized the closure member 78 is seated and a passage 84 communicating with the spool valve is vented through 81 and past the unseated closure member 79. De-energization of the solenoid allows pressure of fluid supplied at 72 to urge the armature to the position shown in which the passage 84 is pressurized.
Patent GB-353011-A (GB)
Title: Improvements in and relating to the synchronising of dynamoelectric machines, particularly frequency converters
IPC: H02J3/42
Filed: 1930-03-17
Abstract: 353,011. Synchronizing. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of McCrea, H. A. ; 15, Hampton Avenue, Schenectady, New York, U.S.A.) March 17, 1930, No. 8561. Convention date, March 16, 1929. [Class 38 (iv).] The rotors of two synchronous machines connected to an A.C. system are brought into space phase relation by automatic reversals of the excitation of one of them. A frequency converter 8, comprising two synchronous machines 9, 11, to be paralleled with a second such set 3, has the connection of one of the machines to its network 2 controlled according to the relative positions of the rotors of the two sets when running synchronously on the other network 1. After being run up to this speed the field of the motoring machine 9 of the incoming set is repeatedly reversed until the terminal volts of the generating machine 11 are thereby brought into correct phase with the terminal volts of the corresponding machine 6 of the other set. The closure of a control switch 14 closes a starting switch 15 connecting the machine 9 through a voltage-reducing compensator to the network 1. A speed-responsive device 17 closes the field switch 18 when the exciter 20 has adequate volts and synchronous speed is almost attained. A contact 47 on the switch 18 then short circuits one speed-responsive switch and a contact 48 energizes a time relay 22. This operates a field reversing coil 23 causing switch 18 to open and switch 25 to close and so reverses the field. The machine 9 thus slips a pole and contact 60 on switch 25 energizes a time relay 26 which causes a field reversing coil 27 to open switch 25 and close switch 18 whereby another pole is slipped. This operation continues until contacts 32, 33 mounted in correct positions on the rotors of the sets 3, 8 respectively closes an auxiliary circuit through a relay 31 when the relative rotor positions correspond to identity of phase position of machines 6, 11 under similar load. A condenser 35 discharges through the relay 31 to maintain its energization. Relay 31 operates relay 30, a contact 65 of which closes the field switch 18 and another contact 60 energizes a transfer relay 36. This relay 36 closes a maintaining circuit at its contact 36a and by contact 68 closes the running switch 10, switch 15 being opened by contact 38. Contacts 71 on the transfer relay and contact 69 on the running switch produce closure of the contacts of control relay 38 which effect the closure of switch 12 to complete the paralleling operation. Interlock contacts are provided on the various switches. The field reversing may take place when the running switch 10 has been closed.
Patent GB-346946-A (GB)
IPC: E21B10/20
Filed: 1930-03-17
Abstract: 346,946. Borehole apparatus. CHICAGO PNEUMATIC TOOL CO., 6, East 44th Street, New York, U.S.A.- (Assignees of Reed, C. E. ; 1010, North Market Street, Wichita, Kansas, U.S.A.) March 17, 1930, No. 8573. Convention date, March 25, 1929. [Class 85.] A roller cutter drill comprises two cutters B mounted on bushings 2 on head sections A with interlocking parts such as ribs 4 preventing relative lateral movement of the sections ; the sections have reduced parts a<4> together forming a stepped stem for threaded &c. connection to a massive one piece chuck E attached to the drill pipe or to a reamer such as shown in Specification 287,472, [Class 85, Mining &c.]. A central water course 5 is provided and conduits 6 convey lubricants. Specification 26240/09, [Class 85, Mining &c.], is also referred to.
Patent GB-1302905-A (GB)
IPC: G01N15/02
Filed: 1970-02-23
Abstract: 1302905 Measuring surface of powdered substances VYZKUMNY USTAV STAVE BNICH HMOT V BRNE 23 Feb 1970 [31 March 1969] 8629/70 Heading G1S A transparent measuring tube 2 is fed with cement from a vibratory feeder 1 and the tube is mounted by springs (not shown) on a vibrator 7 and forming with the arm 3 a weighing beam pivoted about a pin 4. As soon as the weight of cement test sample 16 reaches a predetermined value an electro-magnet 6 is operated to signal the weight to a control unit 18 to switch off the feeder 1, and contacts 5 are made to operate  the vibrator 7 and compact the sample until the level drops to that of a photo-electric cell 20 uncovered to light from a lamp 19. Electromagnetic valves 8 and 21 are then closed and a pump 9 operated to pump air beneath the sample 16 and into a tube 11 until liquid is moved around to the level of a contact 12. The pump is then switched off and the air penetrates through a porous plate 15 and the sample 16 to the atmosphere. The time taken for the liquid level to fall from the contact 13 to the contact 14 is measured and recorded and when the liquid reaches 14 the arm 3 is pivoted to empty the tube 2 and return it again for re-filling. A correction of the apparatus e.g. the electronic timer 22, may be carried out by passing the air through a known reference sample 28 or a resistance capillary tube instead of through the test sample 16. The tube 2 is cleaned by a pendulum wiper 32 operated when the arm 3 swings and a rubber balloon 30 is provided to control the liquid level in the U- tube.
Patent GB-1535584-A (GB)
Title: Process for the preparation of a palladium catalyst
IPC: B01J23/58
Filed: 1976-03-04
Abstract: 1535584 Palladium acyloxylation catalyst HOECHST AG 4 March 1976 [4 March 1975] 08687/76 Heading BIE [Also in Division C2] A palladium catalyst, suitable for the oxacylation of olefines in the gaseous phase, is prepared by impregnating a catalyst carrier with a solution of a palladium compound in an unsubstituted monocarboxylic saturated aliphatic acid other than formic acid, drying the catalyst at less than 90C until the residual solvent content is no more than 8% by wt., and reducing it by passing a gas mixture comprising an inert gas and a reducing agent over the catalyst. The use of acetic acid to prepare Pd on silicic acid and active charcoal catalysts, including Cd, K, Mn, Au, Ba, V and Bi is exemplified.
Patent GB-1140537-A (GB)
Title: Silicone modified waxes
IPC: C07F7/18
Filed: 1966-02-28
Abstract: 1,140,537. Silicone-carnauba wax copolymers. DOW CORNING CORP. 28 Feb., 1966 [29 March, 1965], No. 8710/66. Headings C3S and C3T. [Also in Division C5] A silicone-carnauba wax copolymer consists essentially of a silicone-containing portion bonded to a carnauba wax portion through an organic radical attached to a Si atom via a Si-C bond, the organic radical being an ether radical. The silicone portion may constitute 5- 70% by wt. of the copolymer. The copolymers are best made by mixing molten carnauba wax with an epoxy-silicone in the presence of a catalyst, e.g. a t-amine, quaternary ammonium hydroxide, alkalihydroxide or a Lewis acid, and preferably in an organic solvent. The epoxy-silicone may be a silane or siloxane containing a Si-bonded radical, where R is a divalent hydrocarbon (h.c.), halo-h.c. or ether radical, and Y is a h.c. radical with or without halogen or hydroxyl substituents, the other valencies of Si being satisfied with H atoms or monovalent h.c. or halo-h.c. radicals, and the silanes may also contain Si-bonded halogen atoms or hydrocarbonoxy radicals with or without halo- or ether substituents. The siloxanes may also be copolymers containing from 0.001 to 99.999 mol. per cent of conventional siloxane units. In a typical Example (1) molten carnauba wax was reacted with in the presence of BF 3 .CH 3 CH 2 OCH 2 CH 3  to yield a tough wax melting at 82‹ C. Example (5), the product of Example (4) was dissolved in ethylene glycol dimethylether and added to an hydroxy-terminated dimethylpolysiloxane liquid containing sodium acetate, and warmed, to distil off methanol and solvent, to yield a soft creamy wax. Uses.-In cosmetic compositions such as lipsticks; in leather balm, shoe polish, car polish, floor wax and furniture waxes and polishes and in release agents.
Patent GB-759147-A (GB)
Title: Improvements relating to tool-holders for lathes and like machines
IPC: B23B29/04
Filed: 1953-03-30
Abstract: 759,147. Cutting-tools and tool-hoders. PAGE, V. J. June 22, 1954 [March 30, 1953], No. 8739/53. Class 83 (3). A tool-holder for lathes &c. comprises two bars 1, 9, Figs. 1, 2, with grooves 3, 10 to receive the edges 8, 11, respectively, of a blade 7 which is supported by a wall 2 of bar 1. The bars have chamfers 4, 12 of differing angles, whereby bar 9 abuts bar 1 along a line to permit the holder to accommodate tools of slightly differing depths. The bars are clamped together with a blade in position, in a tool box 14, e.g. by clamping screws 13.
Patent GB-483686-A (GB)
Title: Improvements in furnaces for the production of steel
IPC: C21B9/12
Filed: 1937-03-25
Abstract: 483,686. Combined combustion and electrically heated furnaces. MAGYAR KIR ALLAMI VASACELES GEPGYARAK IGAZGATOSAGA. March 25,1937, No. 8781. Convention date, March 28, 1936. Drawings to Specification. [Class 51 (ii)] In a regenerative open hearth furnace for the manufacture of steel which is fuel heated during the smelting and preliminary refining operations, and electrically heated for the final refining, the gas and air passages are sealed against admission of air during electric heating by devices situated in the cooler parts of the system, e.g. between the regenerators and the chimney. The sealing may be effected by luting plates on to the reversing-valve ports.