baber/WOPTO huggingface dataset:
Patent GB-1485492-A (GB)
Title: Method and apparatus for measuring the longitudinal extent of seats or grooves in mechanical workpieces
IPC: G01B7/02
Filed: 1974-08-30
Abstract: 1485492 Measuring length electrically M POSSATI [trading as FINIKE ITALIANA MARPOSS - SAS DI MARIO POSSATI & C] 30 Aug 1974 [4 Sept 1973] 38092/74 Headings G1M and G1N Apparatus for measuring the length of each groove 11 Fig. 1 on the face of a rotor 14 of a Wankel engine comprises a flexible but inextensible element 25, slightly shorter than the length of a groove 11, which is inserted into a groove and moved by arms 32, 33 first to the left against a first stopper 23, then to the right against a second stopper 23, the extent of the movements being measured by a transducer 44 and added to the known length of element 25 to establish the length of the groove 11. The rotor 14 is mounted on a table 47 which is raised and lowered for loading and unloading and rotated about its central axis 61 for measuring each of the three grooves 11. The procedure can be automated.
Patent GB-1483800-A (GB)
Title: Cryomedical apparatus
IPC: A61B17/00
Filed: 1974-08-30
Abstract: 1483800 Cryomedical apparatus DRAGERWERK AG 30 Aug 1974 [31 Aug 1973] 38108/74 Heading A5R [Also in Division F4] Cryomedical apparatus comprises a probe 1 having a portion 2 arranged to be cooled to a low temperature; a supply device 10 connected with the probe and arranged to supply cooling and heating media thereto; and controlling means connected to the supply device and arranged to control the supply device in such a manner as to control both the rate of charge and the magnitude of the temperature of the portion in accordance with a pre-determined programme. The device 10 supplies either a coolant to an evaporation chamber 4 or electricity to heater 8. The controlling means may be a desired-value transmitter 16, an actual-value transmitter and a desiredvalue and actual-value comparator 13. The actual value transmitter may consist of a thermocouple 9 arranged in the portion 2 or of an external needle 14 having a thermocouple at its tip, which is positioned at a desired distance from the portion 2. The voltage signal issuing from the thermocouple 9, or from the needle 14, is passed to the comparator 13 and is compared with desired value signal from transmitter 16 which is used to set a programme for low-temperature treatment of tissue. The output from the comparator controls the supply device 10.
Patent GB-878825-A (GB)
Title: Improvements relating to hydraulic pit-props
IPC: E21D15/55
Filed: 1957-12-11
Abstract: 878,825. Pit props. GUTEHOFFNUNGSHUTTE STERKRADE A. G. Dec. 11, 1957 Dec. 11, 1956], No. 38570/57. Class 20(2) An hydraulic telescopic pit prop is provided in its head with a spring-pressed rod 3 adapted to engage the mine roof and compress the spring 4 when the prop is set so that on release of the prop the spring overcomes initial friction and resistance and assists in collapsing the prop.
Patent GB-1288018-A (GB)
IPC: C30B29/00
Filed: 1971-08-18
Abstract: 1288018 Etching INTERNATIONAL BUSINESS MACHINES CORP 18 Aug 1971 [16 Oct 1970] 38658/71 Heading B6J A magnesium spinel single crystals having one of the orientations (100) or (110) on a sapphire single crystal having one of the orientations (0001), (11#23), (1#100), (11#24), (11#20) or (01#12) is polished by immersion and rotation in a bath of etchant comprising a mixture of from 1 to 9 parts by volume of sulphuric acid and from 1 to 9 parts by volume of phosphoric acid at a temperature of 200- 325‹ C.
Patent GB-832080-A (GB)
Title: Manufacture of n-acylamino compounds
IPC: C07H13/10
Filed: 1956-12-19
Abstract: The invention comprises D-glucosamines whose amino group is substituted with the residue of a six-membered monocyclic heterocyclic carboxylic acid containing at least one ring nitrogen atom and whose hydroxy groups are preferably unsubstituted or may be at least partially substituted (e.g. acylated), and the preparation thereof by acylation of a D-glucosamine or an O-substituted derivative thereof with an appropriate carboxylic acid or derivative thereof, followed, if desired, by splitting of any acyloxy groups and/or esterification of any free hydroxy groups present in the product.  The products are useful pharmacologically.ALSO:Pharmaceutical preparations contain D-glycosamines whose amino group is substituted with the residue of a six-membered monocyclic heterocyclic carboxylic acid containing at least one ring nitrogen atom, and whose hydroxy groups are preferably unsubstituted or may be at least partially substituted (e.g. acylated), or salts thereof, in admixture with an organic or inorganic, solid or liquid, pharmaceutical carrier material suitable for enteral, parenteral or local application.  The preparations may be in the form of tablets, dragees, salves, creams, solutions, suspensions or emulsions, and may contain other therapeutically valuable materials.
Patent GB-925946-A (GB)
Title: Improvements in centrifugal compressors
Inventor: MARCHAL RAYMOND HIPPOLYTE FIRM
IPC: F04D29/58
Filed: 1960-11-11
Abstract: 925,946. Centrifugal compressors. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Nov. 11, 1960 [Nov. 20, 1959], No. 38852/60. Class 110 (1). In a centrifugal compressor of transonic or supersonic type comprising a rotary bladed impeller surrounded by a stationary diffuser, there are provided two opposite annular disc extensions integral with the impeller and projecting radially outwardly therefrom, downstream of the impeller blades, to define a peripheral annular rotary passage extending radially between the impeller and the diffuser, means fast with the impeller being provided for extracting heat from the fluid flow on its way through the annular rotary passage. The extraction of heat increases the compression ratio. It is stated that in a perfect fluid (i.e. one having no viscosity) the stagnation pressure (i.e. the sum of the static pressure and the pressure equivalent of the velocity head) is always increased where heat is extracted from a flow of constant section, irrespective of whether the flow is subsonic or supersonic. With real fluids this increase of pressure is normally insufficient to compensate for the decrease of pressure due to friction. In the case of a centrifugal compressor this difficulty can be overcome by providing that the extraction of heat takes place in a bladeless peripheral portion of the impeller 1 beyond the impeller blades 5 whereby the friction between the gas and the side walls 3a, 4a of the bladeless portion adds energy to the gas. In addition, the absolute velocity of the gas, which determines the increase of stagnation pressure for a given rate of heat extraction, is considerably higher than the relative velocity, which determines the rate of heat extraction and the friction. The heat is extracted through the walls 3a, 4a by means of cooling fluid circulated through a heat-exchanger 8. Further extraction of heat occurs in a stationary bladeless passage 7 preceding a diffuser 6, the heat being extracted by means of a heat-exchanger 9. The absolute velocity is supersonic at the outlet of the impeller and is reduced to a subsonic value in the passage 7. The transfer of heat may be improved by the provision of fins conforming to the direction of flow. As an additional or alternative way of extracting heat, a liquid is introduced through a duct 10 within the impeller shaft 2. The liquid passes through the blades and is vaporized as it is discharged through nozzles 10a at the trailing edges of the blades, thereby cooling the gas. The gas being compressed and the vaporizable liquid may both be uranium hexafluoride.
Patent GB-845535-A (GB)
Title: Improvements relating to goggles
Inventor: HEFFORD CHARLES GEORGE
IPC: A61F9/02
Filed: 1956-12-20
Abstract: 845,535. Goggles. STADIUM Ltd., Dec. 20, 1957 [Dec. 20, 1956], No. 38892/56. Class 97(1) Goggles comprise a pair of eyepieces connected between their outer edges by an elastic strap and between their inner edges by a bridge member having co-axial oppositely threaded ends engaging threaded members on the eyepieces, so that the distance between the eyepieces can be adjusted by rotating the bridge member. As shown the bridge comprises a rod 10 having oppositely threaded ends 12, 14 engaging threaded apertures in upright pins 16, 18 on corner pieces 20, 22 held to the eyepieces by pins 24, 26. Alternatively threaded rods carried by the eyepieces may engage a threaded turnbuckle.
Patent GB-1211399-A (GB)
Title: Method and apparatus for heating and recovering underground oil
Inventor: RILEY OREY L
IPC: F24H1/10
Filed: 1968-08-15
Abstract: 1,211,399. Wells &c. LOUISIANA HYDROLEC Inc. 15 Aug., 1968, No. 39062/68. Heading E1F. [Also in Divisions H3 and H5] The viscosity of hydrocarbons in oil wells is reduced to enable the oil to be extracted by including a pair of concentric carbon electrodes 19, 20 in one section of a string of pipe sections lowered into an oil well borehole, pouring fluid, e.g. water or oil, into said string of pipe sections, and passing an electric current through the fluid between the electrodes to heat the fluid in the vicinity of the oil producing formation. As shown pipe section 16 has an insulating liner 18 of phenolic resin between it and outer electrode 19 to reduce leakage of current. The inner electrode 20 is located in the outer electrode 19 by insulating spaces 22. The electrodes are impregnated with copper or aluminium powder or provided with a fine screen of conductive material. Current is supplied to the electrode heater 19, 20 by an insulated cable 24 passing through the string of pipes. The electrodes 19, 20 preferably project from the ends of pipe section 16 so that they can be electrically connected to similar arrangements in adjacent pipe sections. The heater pipe sections can be mounted above or below a section containing a rod pump.
Patent GB-1161632-A (GB)
Title: Control Device for use with Apparatuses for Preventing Contamination by the Exhaust Fumes of Motor Vehicle Internal Combustion Engines
Inventor: PUIG JEAN
IPC: F02D9/02
Filed: 1966-09-01
Abstract: 1,161,632. Controlling vehicles. J. PUIG. 1 Sept., 1966 [8 Sept., 1965; 18 Oct., 1965], No. 39089/66. Heading B7H. [Also in Division F1] During overrunning the mixture intake pipe is completely closed by plates 6, 6<SP>1</SP>, downstream of the throttle valve, the plates being controlled by an electromagnet 15<SP>1</SP> whose circuit includes a first means 5 responsive to throttle valve position and a second means 12 which re-opens the plates to prevent stalling when the engine speed drops to nothing. A stop 17 controlled by a device 13 responsive to vehicle speed prevents the plates opening beyond a partially open position until vehicle speed reaches a predetermined value. The means 5 comprises a plate 23, Fig. 7, freely pivotable on the throttle spindle and actuated through a friction clutch. When the accelerator pedal is depressed, plate 23 is moved away from abutment 24 and against abutment 25, breaking switch 5<SP>1</SP>, a toggle spring 33 ensuring rapid movement. When the pedal is released, plate 23 returns to close switch 5<SP>1</SP>, energizing electromagnet 15<SP>1</SP> to close plates 6, 6<SP>1</SP>. The vehicle speed responsive device 13 controls a switch in the circuit of electromagnet 14<SP>1</SP> controlling stop 17. The device 13 comprises an A.C. generator driven by the speedometer cable, the output of which is rectified and applied to the coil of a relay which closes the circuit of electromagnet 14<SP>1</SP> at a predetermined vehicle speed, withdrawing stop 17 to. allow plates 6, 6<SP>1</SP> to move to the full open position. The electromagnetic devices may be replaced by pneumatic or hydraulic actuating means. In Fig. 2 the vehicle speed responsive device 13 controls partial or full opening of a first restriction means 6, 6<SP>1</SP>, and the accelerator and engine speed-responsive devices 5, 12, control complete closing of a second restriction means 20. In Fig. 4 the device 13 controls the restriction plates 6, 6<SP>1</SP>, in the mixture conduit whilst the devices 5, 12, control closing or opening of a valve in the idle fuel passage of the carburetter.
Patent GB-1172190-A (GB)
Title: Improvements in or relating to a Vacuum-Type Circuit Interrupter
Inventor: SCHNEIDER HAROLD NATHAN
IPC: H01H33/664
Filed: 1968-08-15
Abstract: 1,172,190. Vacuum switches. GENERAL ELECTRIC CO. 15 Aug., 1968 [15 Aug., 1967], No. 39149/68. Heading H1N. The contacts of a vacuum switch are provided with separate arcing areas for high and low current arcs. Each contact has a raised annular contact making surface 30; a spirally slotted outer region 17b, 18b for high current arcs; and a circular central recessed region 40 for low current arcs. Tubular stainless steel inserts 50 between the body of each contact and its supporting electrode 17a, 18a, together with the annular form of the contact surfaces 30, cause the normal current flow to follow a curved path L which creates a magnetic field. Below the surfaces of regions 40 are inset plates 42 of high permeability metal such as iron or low carbon steel which, during low current flow, distort the magnetic field of loop L so that the arc is driven inwards on to the surfaces 40. Under heavy current conditions the plates 42 become saturated and the magnetic field then acts in the usual way to drive the arc outwards on to regions 17b, 18b where it is rotated by the field created by the spiral slots. The body and outer portions 17b, 18b of the contacts may be of pure zone-refined copper; the contact surfaces 30 of copper-bismuth alloy (0À5% Bi); and the central regions of a material having a low chopping current such as a copper-tin alloy or bronze. Alternatively the plates 42 may be omitted and regions 40 formed of an alloy of iron, or tungsten with copper or tin. The heavy current arc supporting regions 17b, 18b and 30 must be free of refractory metals.
Patent GB-1338720-A (GB)
Title: Bolt for a door lock
IPC: E05B15/16
Filed: 1971-08-20
Abstract: 1338720 Locks ADAMS RITE MFG CO 20 Aug 1971 [31 Aug 1970] 39208/71 Heading E2A  A bolt 14 of a lock is provided with an element 19, Fig. 3, of ceramic for example which may be inserted inside the bolt. In use when a bolt 14 is in its fastening position it extends from a door 10, Fig. 1, and into an opening 16 in a door jamb 17. The gap between the door and the door jamb facilitates unlawful sawing of the bolt but this is resisted by the ceramic &c element 19. The bolt may be a hook-type as shown in Fig. 7.
Patent GB-903772-A (GB)
Title: Improvements relating to circuit arrangements for the expansion or compression of volume
IPC: H03G7/02
Filed: 1958-12-05
Abstract: 903,772. Volume compression and expansion. TELEFUNKEN G.m.b.H. Dec. 5, 1958 [Dec. 5, 1957], No. 39296/58. Class 40 (4). [Also in Group XL (c)] A volume compressor and expander comprises a valve which may be switched to operate either as a gain-controlled signal amplifier or as a variable impedance in shunt with the signal path. With the switch S1 in the position shown the circuit operates as a compressor with valve a 4 acting as an amplifier having its gain controlled by a signal rectifier circuit 7. With the switch in position c the circuit operates as an expander with the valve 4 acting as a variable shunt impedance across the signal path. Capacitor 9 serves to reduce the compression and expansion at low frequencies, resistors 3 and 11 serve to equalize the gain in the two positions of the switch while the capacitor 10 serves with resistor 11 as a filter for the rectified voltage. A closer approximation to a logarithmic compression characteristic may be obtained by feeding the output of the rectifier in regenerative sense to the input of valve 6 or by replacing valve 4 by a pentode (Figs. 4 and 3, not shown). In the latter case the velve is stitched to operate as a triode when the circuit is used as an expander.
Patent GB-1284773-A (GB)
Title: Process and mill for grinding pulverulent materials, and the materials thus ground
Inventor: GLOBUS ANATOL
IPC: B02C19/10
Filed: 1969-08-08
Abstract: 1284773 Grinding mills AGENCE NATIO NALE DE VALORISATION DE LA RECHERCHE 8 Aug 1969 [13 Aug 1968] 39811/69 Heading B2A Pulverulent material in suspension in a liquid is ground between stationary shoes 5 and a rotating disc 4, urged together by weights 11 on rods 10 or by elastic means (not shown). The disc 4 is rotated on a shaft 6 and has an agitator 17 fixed to it. The disc 4 may be in the form of a cone or cylinder engaging appropriately shaped shoes. The rubbing surfaces are preferably formed of the same material as that to be ground and the leading edges of the shoes 5 may be bevelled. Examples of materials to be ground are Fe 2 O 3  and Y 2 O 3  to form a yttrium/iron garnet and zinc and substances been compressed in a die to stated metal ferrites to form a mixed ferrite, the pressures, and heated to stated temperatures.
Patent GB-1524987-A (GB)
Title: Method for gaseous reduction of metal ores
IPC: C22B5/12
Filed: 1975-09-29
Abstract: 1524987 Direct redution of ores FIERRO ESPONJA SA 29 Sept 1975 [ 18 Oct 1974] 39818/75 Heading C7D  In the direct reduction of ores, of e.g. Fe, Cu, Ni or Sn, in a plurality of reactors comprising a cooling reactor and at least one reduction reactor (the reactors all performing interchangeable functions) the cooling reactor is part of a cooling gas loop which is supplied with cool reducing gas (CO+H 2 ) from a reformer separately from the reducing gas supply to the reduction reactor(s). The apparatus shown has five reactors of which at any time one is charging and discharging, three are reducing and one is cooling. The figure shows the stage where reactors 12, 14, 16 are reduction reactors, reactor 18 is the charging reactor, and 10 is the cooling reactor, reactor 16 performing initial reduction, reactor 14 intermediate reduction and reactor 12 final reduction. The CO/H 2  mixture produced from CH 4  and steam in reformer 20 is cooled at 64 and fed to header 66 from which part goes to reactor 12 via heater 74 and combustion chamber 12a (such that it enters the reactor at 900-1100C in the case of Fe ore). The gas leaving reactor 12 is cooled at 86, heated at 92 and 14a, and fed to reactor 14, the exit gas being sent to to reactor 16 in the same way. The reactor at the cooling stage, in this case reactor 10, is fed with cool gas from header 66 through pump 182 into pipe 184, the gas leaving at 186 being cooled at 188 and recycled to pump 182 via line 190. Gas is removed from the loop thus formed by pipe 194, the gas removed either returning to header 66 via pipe 198, or by pipe 202 to supply heat to the burners 22, 74, 92, 110 etc., to storage 156 or via pipes 138, 130 to the gas supplied to heater 74. During cooling of the reduced material, some further reduction takes place, and carbon may be deposited on the reduced material by cracking, the amount of carbon deposited being controllable by introducing any of CO, CO 2 , H 2 , CH 4  N 2  to the loop through pipe 206. The ore is preferably in lump or pellet form. At the end of each cycle, the reactor functions are switched, reactor 18 effecting initial reduction, reactor 12 becoming the cooling reactor, etc.
Patent GB-978339-A (GB)
Title: Novel filaments
Inventor: MCKINNEY ALFRED HENDERSON
IPC: D01D5/253
Filed: 1963-10-09
Abstract: 978,339. Spinnerets. E.I. DU PONT DE NEMOURS & CO. Oct. 9, 1963, No. 39843/63. Heading B5B. [Also in Division D1] A textile filament of synthetic polymer has a tetralobal cross-section along its length, the cross-section being symmetrical about two perpendicular lines d 2  and d 3  which bisect it, and having a tip radius ratio r 1 /R of 0.05- 0.80, a lobe angle of 25-65 degrees, and minor and major lobe factors d 2 /R and d 3 /R respec- 2 2 tively of 0.3-0.9. When r 1 /R is 0.05-0.45, d 2 /2/R is 0.30-0.75 and d 3 /2/R is at least equal to (d 2 /2/R+0.15). Tip radius ratio, lobe angle,   minor lobe factor and major lobe factor are defined with reference to Fig. 1. The filaments are melt-spun through spinnerets having tetralobal orifices (Figs. 2 and 3). The filaments may be of e.g. polyamides, polyesters, polyolefines, polycarbonates, vinyl and acrylic polymers, cellulose acetate or regenerated cellulose and may contain pigments, e.g. titanium dioxide. The filaments may be spun as tow, monofilament yarn or multifilament yarn, and may be composite, consisting of e.g. a sheath of polyamide around a core of polyester, or of two acrylonitrile polymers in ionic group content. The filaments have, inter alia, improved optical properties. Specifications 871,112 and 905,895 are referred to.
Patent GB-1190989-A (GB)
Title: Photographic Exposure Meter, and a Photographic Camera including the same
IPC: G03B7/085
Filed: 1967-08-31
Abstract: 1,190,989. Exposure meters and exposure control. AGFA-GEVAERT A.G. Aug. 31, 1967 [Aug.31, 1966], No.39910/67. Heading G2A. An exposure meter which may be separate from a photographic camera or may control the diaphragm setting in accordance with the illumination available, has stabilizing means for maintaining constant potential across a photo-resistor in series with a galvanometer. In one embodiment, Zener diodes 11 forming the stabilizing means, are connected in parallel with photo-resistor 10 and galvanometer 9. A battery 6 is in series with a variable resistor 7 having a sliding contact 8, mechanically coupled to the pointer of galvanometer 9. In another embodiment, the resistor 7 is replaced by a second photo-resistor 13 Fig. 3 (not shown) subject to prevailing illumination and the diodes 11 Fig. 2, are replaced by voltage stabilizing cells 18 Fig. 3 (not shown).
Patent GB-1375219-A (GB)
Inventor: BOWLES A G
IPC: B30B11/00
Filed: 1972-08-29
Abstract: 1375219 Isostatic moulding NATIONAL FORGE CO 29 Aug 1972 [10 Jan 1972] 40016/72 Heading B5A An isostatic moulding apparatus comprises filling, vibrating, pressing and unloading stations arranged about the periphery of a turntable 10. At the filling station powder is fed in predetermined quantities from a hopper 42 into a mould 26 supported by a rim 27 within the narrow part 31 of a key-hole aperture in a slide 28 supported in rails 29 attached to the turn-table 10. The mould 26 which may comprise a rubber bag 34 held within a perforated metal canister 32 provided with a pair of metal rings 35, 36 for gripping the bag lip 37 may receive an initial jogging by a vibrating mechanism 43 at the filling station before the main vibration treatment at the second station. At the third station, the slide 28 is retracted by a slotted block 80 attached to a piston/cylinder 82 so that the mould 26 can be carried down through the broad portion of the key-hole aperture to a press 50 by an arm 60 actuated by a cylinder 62. The arm 60 carries a mould plug 64, a cover 66 and pipes 71, 70 through which suction may be applied to retain the mould 26 and a threaded closure 72 (see Fig. 6), which can be rotated by a piston (94, Fig. 4), and cylinder 96 via a keyed ring 84, 86 to engage with a threaded opening in the press 50. After being isostatically pressed by pressure fluid introduced through pipes 58, 59, the compact with its mould 26 is retained to the turntable 10 and rotated to the last station where a vertically movable suction pad (110) attached to a horizontally movable carriage (106, Fig. 5), removes the compact and deposits it on a horizontal take-off conveyer 116. Elastomeric parts, e.g. two spherical halves, may be placed within the bag 34 to produce various shaped compacts, e.g. spheres, cubes or webs. Compacts may be produced which are reinforced with wire or formed on mandrels. More than one compact, e.g. bricks and spark plug insulators may be produced at a time. The various actuators may be pneumatically, hydraulically, electrically or electromagnetically operated.