baber/WOPTO huggingface dataset:
Patent GB-1028819-A (GB)
Title: Treatment of ligno cellulosic board materials and products
IPC: B32B27/00
Filed: 1963-02-27
Abstract: Lignocellulosic board materials have one surface stabilized against grain-raising and covered either with a plastic film or with a foil covered with plastic film, so that depressions present in the board surface are bridged by the film or foil, voids being left in the bottom of the depressions.  The stabilizer may be a polyisocyanate which may be mixed with a resin.  The film may be polyvinyl halide or acetate.  The foil may be metal foil, polyvinyl films, paper, parchment paper, or melamine-impregnated alpha-cellulose.  The film or foil may be printed with a design.
Patent GB-165169-A (GB)
Title: Improvements in or relating to free running or safety devices for use in connection with the transmission of mechanical energy
IPC: F16D43/202
Filed: 1920-03-17
Abstract: 165,169. Simpson, H. J. March 17, 1920. Clutches, claw and freewheel. - In transmission gearing adapted to disengage on sudden arrest or reversal of the driven element and to allow overrunning thereof at all times, a driving-shaft b, Fig. 1, has keyed to it a sprocket-like member a and carries loosely a pair of discs d, between which are pivoted camlevers g, g<1>. The cam-lever g<1> normally engages a tooth j of the member a and one flank of the cam-lever g, which engages also one of the internal teeth of a ring e freely bearing on the discs d and adapted externally for chain, belt, or toothed drive. When the shaft a is turned in the direction of the arrow, the levers g, g<1> bear firmly against each other, and the parts a, d, e revolve together. The lever g is free to turn in a counterclockwise direction to allow over-running, whilst, if a shock or abnormal resistance occurs in the transmission, it tilts in a clockwisedirection until the driven ring e is disengaged, the discs d turning forward relatively to the driving- shaft to permit this. The lever g may be spring- returned, and stops may be provided to limit its rotation in either direction. In a modification, applied to safety starting-gear for internal-combustion engines, a handle 6, Fig. 5<a>, pivoted at 7 to a pair of plates 3 loosely mounted on an engineshaft 2, engages by its extension 8 a cam-lever 9, which is pivoted at 10 to the plates and engages a cam 11 secured to the shaft 2. Normally, when the handle is turned in a clockwise direction, the shaft is positively driven, but if a backfire occurs, the handle is thrown back, and the parts assume the configuration shown in broken lines, whereby the handle is disconnected. In a form described in the Provisional Specification, the cam 11 is replaced by a toothed member.
Patent GB-217341-A (GB)
Title: Rotating hammers for rock drills or the like
IPC: B25D15/00
Filed: 1923-03-20
Abstract: 217,341. Aktieselskapet Fjeldbor, and Rasch, L. March 20, 1923. No Patent granted (Sealing fee not paid). Percussive hand tools.-One or more hammers 64 are pivoted to arms 52 mounted on a rotating shaft 16 and rotated therewith by means of lugs 54. The hammer, after striking the anvil block 8, rebounds from an abutment 45 fixed to the shaft 16. The shaft is driven by a flexible shaft fixed to a socket 19 through a multiple plate clutch 18 controlled by a hand lever 25 having its end 29 close to the tool handle 5. A handoperated twist mechanism is provided comprising a handle 13 screwed on to the casing and formed with lugs 14 engaging grooves in the tool socket 11. In a modified device shown in Fig. 4 a single hammer is used and the driving clutch consists of plates 32, 33 engaging the body 41 which rotates the arms 79 by means of lugs (not shown), and is arranged to balance the hammer.
Patent GB-290407-A (GB)
Title: Improvements in electrical terminals
IPC: H01M50/562
Filed: 1927-03-23
Abstract: 290,407. Siemens Bros. & Co., Ltd., and Riber, C. R. March 23, 1927. Binding-posts and terminals.-A spring-grip terminal comprises a hook-shaped fixed member b attached to an electrode or base d and surrounded by a helical spring a attached to the same base. The member b may be integral with the spring a that may be of smaller diameter at its upper end, its maximum diameter being equal to or less than that of the cap c of the electrode d.
Patent GB-1215432-A (GB)
Title: Improvements relating to reciprocating pumps
IPC: B05B11/00
Filed: 1969-02-14
Abstract: 1,215,432. Reciprocating pumps. W. LEEDS and L. A. MICALLEF, [trading as LEEDS & MICALLEF], Feb.14, 1969, No.8179/69. Heading F1A. A dispensing pump for liquids, pastes or gases for mounting in the neck 12 of a container 11, comprises a diaphragm 52 reciprocated by a plunger 86, fluid from container 11 entering pumping chamber 76 via dip tube 42, ball valve 36 and clearance around plunger extension 84, and being discharged via port 90, which is uncovered by flexing of diaphragm portion 68 during the discharge stroke and covered during the suction stroke, and plunger bore 86 leading to spray nozzle 110. Locking of the actuating, assembly is effected by engagement of radial ribs 122 in cap 15 with notches 126 in peripheral lugs 124 on actuating button 102, engagement and disengagement being effected by appropriate rotation of button 102. The container is vented during pump operation via clearances beween plunger 86 and cap 15, and passages 78, 44 and 46, lip 66 on the diaphragm seating against cap surface 17 to prevent leakage during transit.
Patent GB-1041097-A (GB)
Title: Protective coating for medical or surgical use
IPC: A61L26/00
Filed: 1964-02-27
Abstract: A foam forming composition comprises a resin, e.g. copolymer of vinyl acetate and vinyl stearate or an alkyl acrylate and N-tert-butyl acrylamide, dissolved in a solvent propellent, e.g. trichlorofluoromethane, dichlorodifluoromethane, dichlorofluoromethane, 1,1,2-trichloro - 1,2,2 -difluoroethane, 1,1 - difluoro - 1 -chloroethane, vinyl chloride or dimethyl ether, with an inert filler, e.g. absorbent cotton or rayon fibres, derivatives of montmorillonite, microcrystalline cellulose, silica gel, silica or titanium dioxide.  The components are placed in a can chilled in a dry ice-acetone bath, the can being then closed with a dispensing valve and agitated for 20 hours at 75 DEG  F. to dissolve the resin in the solvent-propellent and dispense the filler.  Paraffin, e.g. paraffin wax is added to produce a flexible foamed product, brittle resins being used to produce rigid foamed products.ALSO:Acrylic esters, e.g. 2-ethyl hexyl and n-butyl acrylates, are polymerized with acrylamides, e.g. N-tert-butylacrylamide, in ethyl acetate in the presence of benzoyl peroxide.ALSO:A wound cover comprising an air-pervious sheet of non-tacky, solvent-free foamed resin containing an inert filler is formed in situ or before application from a foam-forming composition comprising the resin dissolved in a solvent propellent with the filler suspended therein.  The components are placed in a can chilled in a dry iceacetane bath, the can being then closed with a dispensing valve and agitated for 20 hours at 75 DEG F. to dissolve the resin in the solvent-propellent and disperse the filler. Resins which may be used are copolymers of vinyl acetate and vinyl stearate containing 10-30% by weight of vinyl stearate, or copolymers of an alkyl acrylate and N-tert-butyl acrylamide containing 30-70% of the alkyl acrylate by weight.  Preferred solvent-propellents are trichlorofluoromethane, dichlorodifluoromethane or dichlorofluoromethane or mixtures of these, but 1, 1, 2-trichloro-1, 2, 2-difluoroethane, 1, 1-difluoro-1-chloroethane, vinyl chloride or dimethyl ether may be used.  The resin may be placed in the can in the form of cut pieces of film.  Flexible foam dressings are formed by using flexible resins and may include 1% to 3.7% paraffin e.g. paraffin wax.  Rigid foam dressings are formed from brittle resins e.g. copolymers of 50% n-butyl acrylate and 50% N-tert-butyl acrylamide.  The rigidity of the dressing is increased by increasing the proportion of n-butyl acrylate in the copolymer. For a rigid dressing the foam composition is applied over a polyurethane foam sheet on the body and is moulded by hand.  Inert fillers used are chosen from absorbent cotton or rayon fibres, derivatives of martmorillonite, microcrystalline cellulose, silica gel, fine silica or titanium dioxide, the filler comprising 10-50% by weight of the solids in the preparation.
Patent GB-540586-A (GB)
Title: Improvements in or relating to dynamo electric machines
IPC: H02K23/06
Filed: 1940-05-07
Abstract: 540,586. Exciting dynamo-electric machines. MAWDSLEY'S, Ltd., and JONES, N. W. May 7, 1940, No. 8212. [Class 35] In a machine in which the excitation is derived from a shunt or compound wound exciter and in which a main field regulator is in series with the armature of the exciter a rectifying device is arranged in circuit with the exciter-shunt winding so as to prevent a demagnetising-current from flowing through it when the regulator Ýs quickly inserted to shut down the machine. Fig. 1 shows such a machine 1 with a main field winding 4 a main regulating resistance 8 and an exciter 2 having a shunt field-winding. A metal oxide rectifier 9 is connected in series with the winding of the machine armature so as only to pass current in the direction for normal operation of the machine. In a modification the rectifier is in parallel with the winding 7 so as to byepass reverse current.
Patent GB-526400-A (GB)
Title: Improved rocket-firing device
IPC: F41C9/04
Filed: 1939-03-15
Abstract: 526,400. Rocket-firing apparatus. HANCOCK, W. L. March 15, 1939, No. 8289. [Class 9 (ii)] A rocket-firing device comprises a tubular member 1 of approximately V-shape in cross section and having at one end a handle 2 and at the other end a socket portion 3 to receive a rocket, the stick of the rocket being received within the hollow 5 formed in the member. The fuze of the rocket is ignited through an opening at the rear end of the socket 3 under the protection of a shield 12. Additional rockets 8 may be carried around the member by means of a waterproof bag 6 and elastic band 10. A detachable end ferrule 13 may be provided.
Patent GB-382201-A (GB)
Title: Improvements in apparatus for playing a modified bagatelle game
IPC: A63F7/30
Filed: 1932-03-21
Abstract: 382,201. Table games. HEKS, W. J., 15, Montpelier Road, Kentish Town, London. March 21, 1932, No. 8326. [Class 132 (ii).] An apparatus for playing a modified bagatelle game comprises a slightly inclined board having at one side a ball run F fitted with a spring plunger G for projecting the ball D up the run, a self-closing gate H at the top of the run, a disc A or discs substantially flush h with the surface of the board, a resilient bufter I for deflecting the ball on to the disc or discs, scoring recesses C and pins E on the disc or discs and means, for example a knob B, at the lower end of the board for rotating the disc or discs. When two or more discs A are provided the discs are connected bv frictional driving discs. The stationary part of the board may be provided with scoring recesses and deflecting pins. In playing a game the ball is projected up the channel F on to the disc A, and the player by rotating the disc by means of the knob B endeavours to lodge the ball in the cup C of highest scoring value.
Patent GB-1495449-A (GB)
Title: Spectacles frame
IPC: G02C5/00
Filed: 1975-02-27
Abstract: 1495449 Spectacle frames B AUGE 27 Feb 1975 [27 Feb 1974] 8340/75 Heading G2J [Also in Division E2]  A spectacle frame comprises a flat front frame 1 carrying side hinges 3, the axes of which lie parallel to the median plane of the frame 1 and are mutually upwardly divergent, together with means for releasably holding the side arms against the rear face of the front frame. As shown in Fig. 8, this means consists of a channel-shaped member 18 carrying two hooks 20 which are resiliently urged towards steps 14 on a fixed member 13 which is recessed into the rear surface of the bridge portion of the front frame. The side arms are snapped over the hooks 20 and clamped by the hooks against the stops 14. To release the side arms the member 18 is depressed against the action of springs 19. Alternatively the side arms may be held against the rear face of the front frame by magnetic means, snap fastening buttons or press studs. One side arm may include a garment engaging hook.
Patent GB-541836-A (GB)
Title: Improvements in and relating to gas producers
IPC: C10J3/80
Filed: 1940-05-09
Abstract: 541,836. Gas-producers. PARKINSON & COWAN (GAS METERS), Ltd., and COWAN, E. W. L. May 9, 1940, No. 8344. [Class 55 (i)] The supply of water to an atomizer in the air inlet of a gas producer is automatically controlled so that all load conditions, a gas of substantially constant composition is obtained, by means determining the proportion of water in relation to the primary air in dependence upon the quantity of air flowing through the inlet. In Fig. 3, which shows a choke tube leading to the air supply duct, the choke tube 3 which is slidable in the pipe 4 is urged to the left by a spring 5, being displaced relatively to the water jet 2 by the passage of air through the pipe 4. In Fig. 4, the jet is provided with a tapered needle 9 carrying a suction disc 8 and being urged to the left by a spring 5, so that, on increased suction in the pipe 4, a thicker part of the needle enters the jet orifice. In Fig. 2, one of two induction tubes is shown, each having a choke tube c and jet e of sizes different from those in the other tube 9, the jets e being each supplied through a pipe p with water from a constant level tank i. In the main branch j, the jet e and choke tube c are comparatively small while in the subsidiary branch they are larger so that, at high air speed, the deficiency of water provided by the small jet is made up by the water provided by the larger jet. An extra air valve s is provided.
Patent GB-512582-A (GB)
Title: Improvements in or relating to illuminated magnifying devices
IPC: G02B25/02
Filed: 1938-03-18
Abstract: 512,582. Viewing-apparatus. PARTINGTON, .S. W. March 18, 1938, No. 8378. [Class 97(i)] A magnifying device comprises a cylinder d of white plastic material, e.g., porcelain, having lenses e, f, Fig. 2, focused on the area covered by the base of the cylinder, and a socket c for a lamp operated by an electric battery housed in a handle screwed into the socket. An aperture i is provided in the cylinder for the introduction of a surgical or other instrument.
Patent GB-1223452-A (GB)
Title: A process for the electrochemical production of olefin oxides
IPC: C25B3/23
Filed: 1968-04-18
Abstract: 1,223,452. Electrochemical production of olefin oxides. FARBENFABRIKEN BAYER A.G. 18 April, 1968 [20 April, 1967], No. 8386/68. Heading C2C. [Also in Division C7] In the production of an olefin oxide by a process in which a halogen is formed by electrolysis of an aqueous solution of a metal halide in a cell having a diaphragm between anode and cathode, the resulting halogen or its hydrolysis products in solution being reacted with an optionally halogenated olefin to form the corresponding halohydrin and the halohydrin so obtained is dehydrohalogenated with the hydroxyl ions produced adjacent the cathode to form the olefin oxide, the electrolysis anode comprises a titanium core and a covering layer of an oxide of one or more of the noble metals platinum, palladium, iridium, ruthenium and rhodium. The olefin alone if naturally gaseous or in combination with a non-reacting gas, e.g. gaseous paraffins or their halogen derivatives, nitrogen, carbon dioxide under reaction conditions which render the olefin gaseous may be introduced into the anode compartment to form the halohydrin there. Alternatively, the halogen-containing anolyte may be withdrawn from the cell and reacted externally with olefin to form the halohydrin. In either case the halohydrin is then reacted with the catholyte, either by passage from the anode compartment through the diaphragm or externally of the cell, the resulting liquid after removal of the olefin oxide formed being returned to the anode compartment. If olefin oxide formation is effected in the cathode compartment, the hydrostatic pressure therein is kept below that of the anode compartment. Typically electrolysis is carried out using aqueous solutions containing 2 to 20%, by weight of NaCl or KCl at temperatures of 30 to 90 C. under pressures ranging from slightly sub-atmospheric to 5 atmospheres with an applied potential of 3 to 5 volts. Examples are given relating to producing oxides from propylene and ethylene and reference is also made to the use of butylene and allyl chloride.
Patent GB-1509041-A (GB)
Title: Damper means for damping the resonance of disc record tone arms
IPC: G11B3/18
Filed: 1975-02-28
Abstract: 1509041 Fluid dampers A R RANGABE 26 Feb 1976 [28 Feb 1975] 8476/75 Heading F2S [Also in Division G5] A fluid damper for opposing movement of a pick up cartridge 15 relative to a gramophone record 18 acts on the record surface via a skid 20. The damper may be telescopic, or rotary (Fig. 5, not shown).
Patent GB-1039411-A (GB)
Title: Electrolytic technique for hydrogen recovery
IPC: C25B1/02
Filed: 1964-02-28
Abstract: Substantially pure hydrogen is separated from a hydrogen-containing gas mixture by (a) passing the gas mixture into a first zone bounded by a gas-permeable but liquid-impermeable anode 3 of or containing at least one active metal catalyst whereby at least a portion of the gas mixture passes through the anode into an electrolyte 4 in contact therewith, which electrolyte is also in contact with a gas-permeable liquid-impermeable cathode 7 of or containing at least one active metal catalyst, (b) electrolytically effecting solubilization of the hydrogen in the gas mixture at the electrolyte-anode interface and reconstitution of hydrogen gas at the cathode through which the hydrogen gas passes into a second zone, and (c) recovering substantially pure hydrogen from the second zone. The electrolyte may be sulphuric or phosphoric acid, when the hydrogen is absorbed into it as hydrogen ions which are discharged at the cathode, or it may be aqueous sodium or potassium hydroxide, when the hydrogen reacts with hydroxyl ions to form water which is electrolyzed to discharge hydrogen cathodically.  The electrodes may be of carbon in which platinum, palladium, iridium, rhodium, ruthenium or other metal catalyst active for oxidation of hydrogen and reduction of hydrogen ions is incorporated or may be of platinum or nickel alone.  A waterproofing agent such as PTFE may be included in the electrode. In an example a steel wire cloth may have moulded on to it a mixture of approximately 80% platinum, 7% colloidal silica and 13% PTFE which is then treated with aqueous sodium or potassium hydroxide to leach out the silica and leave a porous structure. In an alternative arrangement, Fig. 2, the electrolyte is absorbed in filter paper 11 and the electrodes 12, 13 are pressed against it by inert metal screens 14....17 between gaskets 18, 19 and gas mixture supply and hydrogen removal zones defined by face plates 20, 21.  Reference is also made to the use of solid electrolytes constituted by an ion exchange membrane, and to the use of liquid electrolytes comprising an aqueous solution of p-toluenesulphonic acid or perchloric acid dissolved in acetonitrile. Examples are given of removing hydrogen from hydrogen-nitrogen mixtures and from a mixture of hydrogen, methane, carbon dioxide and ethane. <PICT:1039411/C6-C7/1>
Patent GB-1516934-A (GB)
Title: Pyrolizing arrangements and processes for the pyrolysis of waste solids concentrates
IPC: C10B53/00
Filed: 1976-03-03
Abstract: 1516934 Pyrolysis of waste solids concentrates HANOVER RESEARCH CORP 3 March 1976 [13 March 1975] 08534/76 Heading C5E A process for the thermal decomposition of waste solids which initially contain water comprises (1) mixing concentrates of the waste solids with a stream of relatively non-volatile oil to give a fluid mixture which will remain pumpable after removal of the water content therefrom; (2) dehydrating the fluid mixture by indirectly-heated evaporation; (3) withdrawing a substantially anhydrous waste solids and oil slurry and (4) pyrolysing the slurry to distil off organic vapours and gases and leave a residue of char and ash. Preferably oil is separated from the anhydrous solids-oil slurry before pyrolysis. The organic vapours and gases may be combusted to provide at least some of the heat for the dehydration step.
Patent GB-1028068-A (GB)
Title: Cutting tool
Inventor: HILTEBRAND HEINRICH
IPC: B27L11/00
Filed: 1965-02-27
Abstract: 1,028,068. Woodworking. L. BROGLIELENNARTZ, and H. LENNARTZ-WINKLER, [trading as ALBA - WERKZEUGFABRIK, LENNARTZ. & CO. BULACH]. Feb. 27, 1965, No. 8555/65. Heading B5L. A cutting tool for wood comprises groups of teeth, the teeth 6, 7, 8, 9 of each group being relatively displaced both axially and peripherably of the cutter and having an effective unbroken cutting width, the tooth of each group at one axial end of the cutter being formed with two peripheral cutting edges which are displaced relative to one another in a radial direction of the cutter. The tool is for cutting the edges of boards and has a set of coaxial discs 1, 2, 3, 4, each of which have pluralities of teeth 6, 7, 8, 9 circumferentially disposed about its periphery. Each tooth may be mounted on a member 10, Fig. 1 (not shown), secured in a circular recess in its disc by a rivet 11. The teeth of the discs are arranged in groups, each of which has one tooth from each disc, and the teeth of each group are displaced relative to one another in a circumferential direction. The teeth 6, 7, 8 of the discs 1, 2, 3 have backwardly inclined cutting edges 14 forming an effectively unbroken axial cutting width, whereas the teeth 9 of disc 4 have an outer cutting edge 15, Fig. 3 (not shown), which forms an effective continuation of the edges 14, and a smaller cutting edge 16 radially inwards of the edge 15, the common front 17 of the teeth 9 being inclined so that the edges 15, 16 are rearwardly inclined. It is stated that the smaller cutting edges 16 cut with less pressure than the edges 15 so as to cut, and not knock, the last piece of waste from the edge of a board being cut.
Patent GB-177539-A (GB)
Title: Improvements relating to electric circuit interrupters
IPC: H02H7/26
Filed: 1922-03-24
Abstract: 177,539. Metropolitan - Vickers Electrical Co., Ltd., (Assignees of Reagan, M. E.). March 24, 1921, [Convention date]. Protective arrangements.-A sectionalized distribution system is provided with circuit-breakers operating upon the occurrence of a fault and the closure of each circuit-breaker is controlled bv two potential relays one on each side of the circuitbreaker. The sections 4 and 5 of a distribution system are connected by a circuit-breaker 11 operated by a coil 12. Between the section 4 and the return 17 a potential relay 15 is connected normally in series with a low resistance 18 and a high resistance 19. A relay 16 is connected in series with a low resistance 24 and a high resistance 25 across the section 5 and the return 17. Under normal conditions, the relay 15 operates to close the switches 21 and 22 and to open the switch 23, while the relay 16 operates to close the switches 27 and 28 and to open the - switch 29. Under these conditions the coil 12 is energized to close the circuit-breaker 11. When a fault develops at A the lowered potential of the section 5 causes the relay 16 to open the switches 27 and 28 and to close the switch 29, thereby breaking the circuit of the coil 12 to open the circuit-breaker 11, and a resistance 30 is inserted between the sections 4 and 5, and the switches 13, 14 are closed. The closure of the switch 13 short-circuits the resistance 25 in series with the coil 26 through the switch 29 in order that the relay 16 may operate to close the switches 27 and 28 when the fault is removed and before the voltage of the section 5 reaches its normal value. When the resistance of the fault at A reaches a predetermined value the relay 16 operates to close the circuit of the coil 12 at the switch 27 and the circuit-breaker 11 is closed.