baber/WOPTO huggingface dataset:
Patent GB-2048679-A (GB)
Title: Dental prosthesis cleaning appliance
IPC: A61C15/00
Filed: 1980-03-28
Abstract: A dental prosthesis cleaning appliance comprises casing (1), tank (2) for cleaning liquid (3), a tube (6) through which air is passed into the liquid, and a heating unit (38) for heating the liquid in the tank. The heating unit may be located in the casing or in the tank. The tank is held between arm 32 and platform 12 of the casing by engagement of air supply nozzle (14) with the top end of the tube, and may be provided with a container (5) for the prostheses and a lid (10). The heating unit may be operated by a switch (17) mounted on the casing (1) in association with timer (39). <IMAGE>
Patent GB-2052881-A (GB)
Title: Dynamoelectric machines; emergency power supplies
IPC: H02J9/06
Filed: 1980-04-21
Abstract: An apparatus for storing electrical energy comprises an electric motor (2) and spring means (16) arranged to be tensioned by the motor when electrical energy to be stored is applied to the motor; if the power supply to the motor fails the spring means drives the motor in reverse as a generator to produce in electrical form the energy stored in the spring means. In an emergency electrical power supply comprising apparatus as above arranged to be normally supplied with electric energy to be stored, disconnecting means (18, 22) disconnects the motor (2) from the normal supply (4) in the event of failure of the normal supply. The disconnecting means may be also arranged (as shown) to connect, in the event of failure of the normal supply, the motor to an emergency load (20) not connected to the normal supply or the emergency load and the motor may be connected in parallel with the normal supply (Fig. 2-not shown). <IMAGE>
Patent GB-2053900-A (GB)
Title: 6,8-Dibromo-1,4-dihydro-2H- 3,1-benzoxazine-2-one and the production of bromhexin
IPC: C07D265/18
Filed: 1980-05-29
Abstract: N-(2-amino-3,5-dibromobenzyl)- N-methyl-cyclohexylamine, the hydrochloride of which has the formula   <IMAGE> is prepared by brominating 1,4- dihydro-2H-3,1-benzoxazin-2-one with free bromine to form the hitherto unknown intermediate 6,8-dibromo- 1,4-dihydro-2H-3,1-benzoxazin-2- one, and reacting this with N-methyl- cyclohexylamine to bromhexin. Preferably, the reaction takes place by heating in N-monomethylformamide to the boiling point of the latter.
Patent GB-2051832-A (GB)
Title: Titanium trichloride catalyst and process for its preparation
IPC: C08F4/60
Filed: 1980-06-05
Abstract: A storage stable component of an olefin polymerisation catalyst is obtained when an aluminum-reduced titanium trichloride catalyst which has been modified by treatment with an electron donor is heated at a temperature and for a period of time sufficient to drive the reaction to completion e.g. at 40 DEG  to 110 DEG C for 10 mins to 12 hours. In some instances this will involve the removal of by-product which has been formed during the modification. The component corresponds to the formula (3 TiCl3. AlCl3)1-x (3 TiCl3AlCl2XR)x where X is O, S, Se or Te, R is an organic group and X is positive and less than or equal to 1.
Patent GB-2057659-A (GB)
Title: Method of operating a refrigeration system
IPC: F25B1/00
Filed: 1980-08-05
Abstract: Method of operating a refrigeration system of the type having a multiple cylinder compressor (10) or multiple compressor including steps of operating the systems under normal operating conditions, sensing operating conditions, partially unloading the compressor when sensed operating conditions indicate that the ambient temperature or high side pressure exceed a predetermined limit, and continuing the operation of the refrigeration system at reduced capacity, until the sensed conditions indicate normal operating load. Unloading is achieved by flow of high pressure refrigerant passing through a by-pass line 22 to the suction side of the compressor under the control of a pressure switch 25 or temperature control. <IMAGE>
Patent GB-2058299-A (GB)
Title: Distributor head
IPC: A61H33/02
Filed: 1980-09-10
Abstract: The head for the air supply of a multi-part shower mat has an air inlet opening 18 formed on a rotary slide valve and several air outlet openings 14, 15 which may be selectively connected to parts of the shower mat and supply these with air. There is provided on the distributor housing via air locking devices one or more openings 11 for the connection of one or more additional spray elements. The head is characterised in that the opening 11 for the connection of the additional spray element and its associated air chamber 21 is only connected to the air inlet opening when by means of the rotary slide valve at least one of the other connection openings and their air chambers is closed from the air inlet opening, <IMAGE>
Patent GB-2087484-A (GB)
Title: Rotary vacuum-pumps
IPC: F04C18/344
Filed: 1980-10-11
Abstract: In a sliding-vane type pump, to prevent overheating the pump housing 12 contains a valve arrangement 28 having a closure member 36 coupled to a thermostat 40, which above a predetermined temperature lifts closure member from its seat 34 to admit atmospheric air to the pumping chamber 20 on the suction side of the rotor 10. <IMAGE>
Patent GB-2066416-A (GB)
Title: Two-stage Torsional Vibration Damper
IPC: F16D3/14
Filed: 1980-11-20
Abstract: A torsional vibration damper assembly to provide extended travel for the dampening effect which is achieved by the use of two concentric series of damper springs (73, 74, 75), (76, 77, 78) interconnected through a common housing or intermediate member. A driving plate (23) has two or more drive tangs (28) secured thereon, which tangs extend inwardly into the path of the outer circle of damping springs (73, 74, 75). One or more floating divider rings are journalled in the assembly and have ears (66, 69) projecting into the path of the springs as do outer drive straps (55) of the intermediate member. Floating wedges or skates (81) are located between the springs (76, 77, 78) of the inner circle along with inner drive straps (61) of the intermediate member and hub arms (97) in the path of the inner springs; the hub (93) being driven through the circles of springs to drive a transmission input shaft (22). Use of the damper assembly in conjunction with a torque converter lock up clutch is described, the driving plate 23 being the clutch operating piston and the hub being connected to the turbine of a torque converter. <IMAGE>
Patent GB-2068367-A (GB)
Title: A paromomycin derivative
IPC: C07H15/232
Filed: 1980-11-26
Abstract: 4',4'''-Dideoxy-paromomycin, useful as an antibacterial agent, active against gram-positive, gram-negative bacteria and against protozoa is claimed, both per se and in pharmaceutical compositions. The process for its preparation, also claimed, comprises reacting a 6,3',2'',5'',3''',4'''-hexa-O-acyl or benzoyl-6'-O-benzoyl-penta-N- benzyloxycarbonyl-paromomycin with a large excess of carbon disulphide and a strong base, followed by treatment of the reaction mixture with methyl iodide. The resultant 4',4'''- bis-(methylthio thiocarbonate) is reduced with tributyltin hydride, and the hydroxy-protecting groups and amino-protecting groups are successively removed by treatment with methanolic sodium methoxide and by transfer catalytic hydrogenolysis respectively.
Patent GB-2088295-A (GB)
Title: Transporting Cart or Containers
IPC: B62B1/18
Filed: 1980-12-22
Abstract: A wheeled chassis 1, has a handle 5 and supports a carrying part 8 adapted to engage under a reinforced edge of the container 2. The carrying part 8 is pivotable at 10 for the purpose of taking up and depositing the container, and is secured relative to the chassis in its container transporting position by means of detent bolt 15 entering sleeve 13. <IMAGE>
Patent GB-2092934-A (GB)
Title: A tube profiling tool
IPC: B23B5/16
Filed: 1981-02-11
Abstract: A tube profiling tool, comprising means 1 for securing the profiling tool relative to a workpiece, a cutting tool support 2 adapted to receive at least one cutting tool 6,7,8, means whereby the cutting tool support and the workpiece may be rotated relative to one another about a predetermined axis, and means whereby the cutting tool support and the workpiece may be moved relative to one another, parallel to said axis. The or each cutting tool received by the cutting tool support is secured in position relative to the cutting tool support by an intermediate member 17 which is detachably securable to the cutting tool support, the dimensions of the intermediate member determining the position of the cutting tool relative to the said axis. <IMAGE>
Patent GB-2070797-A (GB)
Title: Electrophotographic materials
IPC: G03G5/10
Filed: 1981-03-05
Abstract: A multi-layer electrophotographic material has a layer of trigonal selenium or gold to act as hole-injecting material; a layer of halogen-doped selenium- arsenic alloy to act as hole- transport material; a layer of a selenium- tellurium alloy as charge- generator material, and a layer of organic resin electrical insulation.
Patent GB-2117098-A (GB)
Title: Dewatering of peat or peat slurries
Inventor: MCCULLINS JOHN THOMAS
IPC: C10F5/00
Filed: 1981-06-25
Abstract: The peat is dewatered by the addition of trivalent metal ion salts, which neutralise negative electrical charges in the fibrous matrix, and the water thus released, is removed by mechanical means or simply by allowing air drying to take place. The moisture content of peat, as taken from the bog, can be reduced to 50- 55% w/w without the application of any energy other than that required to mechanically compress the treated slurry.
Patent GB-2083469-A (GB)
Title: Methanol/higher alcohol mixtures
IPC: C07C29/15
Filed: 1981-09-02
Abstract: Mixtures of methanol and higher alcohols to be used in particular as fuels, either alone or in admixture with petrol, are produced by reacting H2 and CO, possibly in the presence of CO2, in a molar ratio H2:CO of from 0.1:1 to 20:1, preferably from 0.5:1 to 5:1, at a temperature of from 300 to 500 DEG C, preferably from 350 to 450 DEG C, and at a pressure of from 2000 to 16000 KPa, in the presence of a catalyst based on chromium, zinc and at least one alkali metal. The Zn:Cr weight ratio of the catalyst, considered as oxides thereof, is from 5:1 to 1:1 and the alkali metals or the alkali metals as oxides are present in an amount of 0.5 to 5% by weight relative to the total of the elements considered as oxides.
Patent GB-2083842-A (GB)
Title: Transparent abrasive resistant sputtered films on metal substrates
IPC: G04B37/22
Filed: 1981-09-08
Abstract: The surface of a metal article which is exposed to the atmosphere and abrasion during normal use of the article is protected from scratches and/or corrosion during such use by a thin transparent abrasion-resistant film of an inert non-metallic material such as SiO2, SiC, Si3N4, TiO2, MgO, Al2O3, Ta2O5, Nb2O5, GeO2, spinel and selected colorless glass compositions. The protective film is preferably deposited by RF-sputtering techniques and undesirable coloration of the article by optical interference effects from incident light rays is avoided by properly correlating the film thickness with the refractive index of the particular material used to form the film. The invention permits the use of thinner gold plating on such items as articles of expensive jewelry and bracelets and cases for fine wristwatches without detracting from the quality, durability or appearance of the merchandise. Alternative embodiments in which several films of various selected non-metallic inert materials are combined to form composite protective coatings that provide additional cost and manufacturing advantages are also disclosed along with methods for sputter-depositing the protective films in the proper thicknesses to avoid optical discoloration effects, either on articles that have been previously plated with gold or which have been provided with a sputter-deposited layer of gold by sequentially operating the sputtering apparatus.
Patent GB-2084054-A (GB)
Title: Faller bars
IPC: D01H5/14
Filed: 1981-09-21
Abstract: In the manufacture of a pin strip type faller bar for use in a textile machine, a heat activated adhesive, preferably a low temperature melt adhesive, is applied in molten form to the plastics strip 24, the strip 24 is placed in the groove 22 in the bar 12, and the bar is heated sufficiently to activate the adhesive. It is preferred to allow the adhesive to solidify before the strip is fitted into the groove to facilitate handling of the strip. <IMAGE>
Patent GB-2107934-A (GB)
Title: Magnetic lifting devices with load equalisation
Inventor: PORTER CLIVE HARWOOD
IPC: B66C1/04
Filed: 1981-10-08
Abstract: This invention provides a magnetic lifting device for coils, comprising a set of four magnets (4, 5, 6 etc) and suspension means (links 7, 8, 9) by which magnets are individually suspended from a common support (1, 2, 3, etc) and each of which is vertically movable in slots (14, 15). A closed hydraulic circuit (22, 23, 24) is commonly connected to these links via a cross- pin (13) whereby when the load is lifted the same hydraulic pressure is imposed on all the magnets irrespective of the vertical levels they assume on the load. <IMAGE>
Patent GB-2088802-A (GB)
Title: Platform truck
IPC: B61F5/16
Filed: 1981-11-12
Abstract: A platform truck, particularly for use underground, has a load-carrying platform (1) mounted on bogies (2) through torque-shear springs (4) and bearing pins (5). Each bogie (2) has a bearing bridge (7) adapted to swing about the longitudinal truck axis in a pendulum bearing (6) on the underside of the platform (1), the bearing bridge (7) overlapping a bearing axle (8) having a centrally disposed bearing cup (9) for the spring (4). The ends of the axle (8) each carry a wheel box (10) having two sets of wheel bearings (3) and able to swivel about the transverse truck axis, and each wheel box (10) has a supporting roller (11) for the bearing bridge (7) above the bearing axle (8). The platform truck is thus able to carry extremely heavy loads and negotiate differences in level of joints and points along a track. <IMAGE>
Patent GB-2094414-A (GB)
Title: Swab cup
IPC: F04B53/12
Filed: 1982-02-09
Abstract: A swab cup (5) for an oil well comprises a body (7) of elastomer bonded to a metal bushing (6). The surface of the body (7) is formed with a plurality of adjacent recesses (10) each having a concave arcuate bottom (11) and a recess depth of between 0.254 mm and 1.27 mm. A V-shaped groove (20) is provided at the upper end of the swab. <IMAGE>
Patent GB-2116327-A (GB)
Title: Method of determining and/or indicating the specific gravity of wine
Inventor: FECHER MICHAEL JOHN
IPC: G01N9/12
Filed: 1982-03-11
Abstract: The method includes the steps of introducing into the fermentation container with the initial ingredients a plurality of floats of different specific gravity, the tops of the floats being visible during the initial stages of fermentation but during the later stages sinking one by one, the remaining visible float or floats giving an approximate indication of the specific gravity of the liquid without the need to open the container. Each float is made in two parts 12 and 14 of dissimilar plastics, part 12 including a circular end piece 12b from which projects a shank 12a, and part 14 being in the form of a ring which can be slid on the shank 12a and retained thereon by ribs 12c of the shank. Four floats are used, the different specific gravities being obtained by using different lengthened shanks. <IMAGE>
Patent GB-2103193-A (GB)
Title: Bottle opener
Inventor: FRASER HELEN VICTORIA
IPC: B67B7/00
Filed: 1982-06-01
Abstract: Means to assist in the removal of covers from containers comprises a receptacle 14 or 16 of conical or frusto-conical shape the inner surface 22 or 24 of which is of a material providing good frictional resistance, whereby the base of a container can be inserted in the receptacle so as to engage the inner surface thereof. When downward pressure is applied to the container the resulting reaction between the container base and the receptacle is such as to secure the container against slippage in the receptacle when rotary force is applied to its cover. <IMAGE>
Patent GB-2103012-A (GB)
Title: Variable capacitor
Inventor: SAKAI TAKAMASA
IPC: H01L29/94
Filed: 1982-07-01
Abstract: A variable capacitor comprising a semiconductive substrate 10 having one surface 3 for generation a depletion layer thereon, an opposite surface 15 substantially parallel with said one surface and a lateral surface A, a depletion layer d and a capacitance reading section 13 provided along the lateral surface A of the semiconductive substrate, permitting the depletion layer d to expand to reach the lateral surface A by reversely biasing the depletion layer control section 14/12, whereby reading capacitance variation from the capacitance reading section 13. The depletion layer d and capacitance reading section 13 can be defined by a P-N junction, a MIS arrangement of a Schottky barrier. <IMAGE>
Patent GB-2102523-A (GB)
Title: Pipe fitting
Inventor: WILLIAMS JOHN PAUL
IPC: F16L19/028
Filed: 1982-07-02
Abstract: The outer sheath of a steel pipe 1 has a counter-bored end pressed into the bore 3 of a union nut 4, the bore being sized to accommodate the pipe. An abutment 5, having a bore smaller than the bore 3, and an under-cut groove 6 are provided in the nut. When the end of the pipe abuts the abutment 6, the portion of the pipe which is weakened by the counterbore bows out into the under-cut groove 6 to such an extent that the pipe 1 is secured to the nut 5. An O-ring seal 7 in a groove 8 in the nut is provided adjacent the mouth 9 of the bore 2 for sealing the pipe 1 to the union nut. An inner pipe 10 having an up-set head 11 may be secured, together with the outer sheath pipe 1, to apparatus by the union nut 4. <IMAGE>
Patent GB-2104512-A (GB)
Title: Process for producing methacrylic acid
Inventor: KHOOBIAR SARGIS
IPC: C07C51/00
Filed: 1982-07-16
Abstract: In the vapor phase oxidation of methacrolein to methacrylic acid with molecular oxygen over a catalyst containing Mo, P, Cu, Sb, and Cs and/or Ca, the amount of methacrylic acid produced per unit weight of catalyst is improved by carrying out the oxidation in the presence of a greater molar ration of CO2/CO than is produced by the oxidation. When unreacted gases are recycled, the ratio of carbon dioxide to carbon monoxide can be increased by selective oxidation of the CO to CO2.
Patent GB-2108178-A (GB)
Title: Fluid supply system to rotary cutter heads on mining machines
Inventor: EAGLES BRIAN ARTHUR
IPC: E21C35/23
Filed: 1982-09-10
Abstract: A fluid supply system for a rotary cutter head (1) for a mining machine, comprises a relatively low pressure feed arrangement (308) for feeding relatively low pressure fluid to discharge nozzles directing fluid sprays towards the cutting zone of the cutter head, and a relatively high pressure feed arrangement (302, 300, 307) for feeding relatively high pressure fluid to discharge nozzles (34) emitting air flow inducing sprays. <IMAGE>
Patent GB-2110708-A (GB)
Title: Heat storage materials
Inventor: CHALK CHRISTINE DEBORAH
IPC: C09K5/06
Filed: 1982-10-29
Abstract: The materials comprise at least one hydrated compound which undergoes reversible transformation to an anhydrous or less hydrated form and a fusion temperature-depressing salt both dispersed and suspended throughout a water-swollen crosslinked polymer hydrogel (e.g. a hydrogel as in European Patent 99 or 11411). The improvement is that the fusion temperature-depressing salt is present in an amount of 50 to 75% by weight of the eutectic amount; this substantially reduces thermal hysteresis. In a modification where water is present in excess of the amount required to fully hydrate the compound, the amount of fusion temperature-depressing salt may be increased up to 90% by weight of the eutectic amount.
Patent GB-2111377-A (GB)
Title: Improvements in coffee- making machines
Inventor: STANWELL-SMITH COLIN
IPC: A47J31/057
Filed: 1982-11-09
Abstract: A filter-type coffee making machine equipped with a control panel for brew time selection in chosen relationship to a selected amount of coffee loaded into the filter cup (24) per water unit filled into the water reservoir (22), the brew time and coffee amounts being independently selectable according to the strength and flavour of brewed coffee required, wherein the filter cup is provided with a by-pass channel (32) associated with a diverting valve (34) and a filter valve (36). Heated water is fed to cup (24) via (30) and (38). At the end of the selected brewing time, both valves are operated so that, independently of the amount of water initially filled into a reservoir, any remaining heated water is then diverted to by-pass the filter and any coffee brew held back in the filter is released. The by-pass channel (32) can constitute a movable actuating member for the two valves. <IMAGE>
Patent GB-2116704-A (GB)
Title: Electro-optical apparatus
Inventor: ACKER JESSE L
IPC: G01N35/00
Filed: 1982-12-02
Abstract: Apparatus which can be used for the qualitative determination of immunological reactions comprises an image cell having a reaction zone 51, into which a biological fluid specimen and a reagent may be introduced; a light source 93; an image sensor having a photosensitive surface; and imaging lens 95, for focusing light transmitted from the source through the reaction zone onto the image sensor on which dark images appear corresponding to agglutinated particles in the reaction zone; and a threshold comparator which counts only dark image areas greater than a predetermined threshold level. A plurality of such cells may be provided in a carriage assembly, and partially removed one-by-one for sequential imaging. <IMAGE>
Patent GB-2134636-A (GB)
Title: Method of cooling baked goods
Inventor: MARTIN ALAN
IPC: A21D15/02
Filed: 1983-02-03
Abstract: Hot baked goods, such as loaves of bread, are cooled by spraying with water, the rate of application of which is such that the water evaporates either in the layer of air adjacent the surface of the hot baked goods, or shortly after contacting the surface or crust (but in any case, before impregnating the latter). Air immediately adjacent the baked goods being cooled can be cooler and of higher relative humidity than in prior forced air cooling processes.
Patent GB-2126633-A (GB)
Title: Road sweeping apparatus
Inventor: MEALING BARRIE EWART
IPC: E01H1/04
Filed: 1983-02-25
Abstract: A road sweeper 10 comprises a self-propelled chassis 12 and road sweeping apparatus 16 including brush gear 20, a refuse collecting nozzle 22 and a refuse tank 24. Brush gear 20 comprises a wide sweep brush 28 mounted on arms 102, 104. Each arm has a ball joint either at its forward end 106 or on the axis 110 of the brush 28 whereby the brush can follow road contours. At the other end from the ball joint, one of the arms is held at a fixed angle relative to the frame or to the brush so as to hold the brush in the lateral direction. A change-over mechanism comprising a lever 116 and a ram 122 is provided connected to the mounting arms to change the attitude of the brush between its sweeping modes for moving material to opposite ends of the brush. <IMAGE>