baber/WOPTO huggingface dataset:
Patent GB-1131882-A (GB)
Title: Improvements in or relating to a well bore cleaner and cement disperser
IPC: E21B17/10
Filed: 1967-04-12
Abstract: 1,131,882. Wells &c. WEATHERFORD OIL TOOL Co. Inc. 12 April, 1967 [25 April, 1966], No. 16892/67. Heading E1F. A tool for cleaning well bores and cement dispersing comprises a collar 11, circumferentially spaced elements 14 projecting from the collar, and flexible webs 24 between the elements. The tool is preferably rotatably mounted on a casing 9 between stop collars, bristles (not shown) being fitted within the collar 11 for cleaning the casing surface. The edges of the collar 11 have slots 21 permitting the cement or other fluid to clean the casing surface. In a modification (Fig. 5, not shown) the upper edge of the collar 11 is spaced from this the casing and is of a scalloped form. A collar having scratching wires may depend from the tool.
Patent GB-976191-A (GB)
Title: Epicyclic gearbox for transmission mechanism
IPC: F16H47/08
Filed: 1960-12-12
Abstract: 976,191. Variable-ratio gearing. REGIE NATIONALE DES USINES RENAULT. Dec. 12, 1960 [Dec. 16, 1959], No. 16938/64. Divided out of 975,941. Heading F2D. Epicyclic gearing for a frontaxle - drive, front - engined vehicle, or for a rear-axle-drive, rear-engined vehicle has the epicyclic gearing disposed on the opposite side of the final reduction and differential gearing to the engine which drives the pump 212 of a hydrodynamic torque converter the turbine 213 of which drives an input shaft 216 of the epicyclic gear. The epicyclic gearing comprises three overlapping trains, a first train having an input sun 217 and planet pinions 218 meshing planets 219 of the second train, the planets 219 meshing an output ring 224 and a sun 235 which can be connected to the sun 236 of the third train by a clutch 251 for direct drive and can be stationed by a brake 254 for second gear. The sun 236 meshes planets 220 integral with the planets 218 and the planet carrier is stationed by a brake 223 for first gear. Reverse is obtained by applying a brake 240 to station the sun 236.
Patent GB-620693-A (GB)
Title: Improvements in and relating to methyl vinyl polysiloxane-methyl methacrylate copolymers
IPC: C08F230/08
Filed: 1946-06-04
Abstract: A mixture of methyl vinyl polysiloxane and methyl methacrylate containing 30-60 per cent by weight of methyl vinyl polysiloxane is copolymerized.  Preferably the polymerization is catalyzed with 0.5-1.0 per cent of catalyst, e.g. benzoyl peroxide; tertiary butyl perbenzoate; ditertiary butyl diperphthalate; or ditertiary butyl peroxide.  A suitable temperature is 100-125 DEG  C., the initial temperature being lower, e.g. 60-80 DEG  C.  Figures are given in the Specification for the hardness and power factors of a number of copolymers prepared with different catalysts. Specification 620,692 is referred to.
Patent GB-421066-A (GB)
Title: Improvements in and relating to supports for golf bags and the like
IPC: A63B55/57
Filed: 1933-06-14
Abstract: 421,066. Sack-holders. RICHARDSON, T. H., 13, Muspratt Street, Widnes, Lancashire. June 14, 1933, No. 16979. [Class 58] [See also Group XV] A support for a sack or like container comprises a U-shaped strut 1 pivoted to a pair of mounting members 2 secured to diametrically opposite sides of the bag 3, spring blades 7 bearing on the ends 4 of the strut so as to lock it automatically in both the open and closed positions. The part 1<a> of the strut is shaped so as to lie close against the bag when the strut is closed. A strap 12 bridges the members 2, which may be secured to the side of the bag by screws and blocks, or keys and collars. The strut 1 may consist of a pair of straight rods threaded at their lower ends into an arcuate aluminium bridge piece.
Patent GB-786583-A (GB)
Title: Improvements in or relating to benzene hexachloride
Inventor: KUNG FREDERICK EDWIN
IPC: C07C17/38
Filed: 1955-06-13
Abstract: Benzene hexachloride isomers are separated by dissolving the mixture of the isomers in a pair of immiscible solvents for benzene hexachloride and separating the immiscible phases.  The pair of immiscible solvents suitably comprises a nonpolar solvent, e.g. an aliphatic or cycloaliphatic hydrocarbon or a halogenated hydrocarbon, and a polar solvent such as an aliphatic alcohol or an aqueous solution thereof.  Specified polar solvents include methanol, ethanol, isopropanol, propanol, butanol, the glycols and polyglycols, acetonitrile, formamide, formic acid, aniline, ethylene glycol monomethyl ether, ethylene carbonate, nitromethane and methyl carbitol.  Benzene hexachloride containing a mixture of alpha, delta and gamma isomers may be treated according to the invention to separate the delta isomer and the resulting mixture of alpha and gamma isomers may then be subjected to a further treatment with a pair of immiscible solvents to separate the gamma isomer.  The process is suitably carried out by countercurrent extraction, for example by introducing one of the solvents into the upper part of a vertical extraction tower or zone, introducing the less dense solvent into the lower part of the extraction zone and introducing benzene hexachloride into the extraction zone, preferably in the form of a solution in a liquid aliphatic alcohol.  Suitable apparatus for this process is described with reference to drawings.  The process may be used for the separation of the gamma isomer from mixtures containing the alpha and/or delta isomer.  Examples describe the separation of gamma enriched concentrates from mixtures of benzene hexachloride isomers using as solvent pairs carbon tetrachloride-ethylene glycol, n-hexane-methanol, n - hexane - nitromethane, benzeneethylene glycol, perchloroethylene-ethylene glycol, ethylene dichloride-ethylene glycol, carbon tetrachloride-diethylene glycol, perchloroethylene-diethylene glycol and solvent pairs comprising cyclohexane with each of methanol, ethylene glycol, ethylene carbonate, dimethylformamide formamide, furfural formic acid, acetonitrile and aniline.  Specifications 659,810 and 750,503 are referred to.
Patent GB-826155-A (GB)
Title: Improvements in and relating to the hull form of tug boats and towing vessels
Inventor: CORLETT EWAN CHRISTIAN BREW
IPC: B63B1/04
Filed: 1956-06-01
Abstract: 826,155. Hull form. BURNESS, CORLETT & PARTNERS Ltd., [formerly BURNESS, KENDALL & PARTNERS Ltd.]. Sept. 2,1957 [June 1, 1956]; No. 16995/56. Class 113. A hull has a wide flat run to the stern formed by sections having not more than a 5 degree angle of deadrise a in way of the propeller and a low angle of rise b from the keel line which is less than 25 degrees, the effect of which is to move the centre of buoyancy further forward than is normal for a hull having a speed length ratio of approximately v#l= 1À10 - 1À35, the hull also having a built-up skeg B attached to the stern as an appendage. The hull has conical development of its underwater surfaces as in Specification 809,325 and has a full bow, Fig. 3, having generally convex waterlines. The arc C of the propeller A is very close to the hull sections shown tunnelled at D. Specification 809,063 also is referred to.
Patent GB-1395673-A (GB)
Title: Method of direct potentiometric analysis of a liquid sample
IPC: G01N33/483
Filed: 1973-04-09
Abstract: 1395673 Electro-chemical analysis TECHNICON INSTRUMENTS CORP 9 April 1973 [10 April 1972] 17008/73 Heading G1N In the potentiometric analysis of a fluid sample in which the sample contacts an ion-selective electrode the sample is in the form of a fluid stream with sample segments separated from each other by segments of gas. In order to detect sodium in blood sera or plasma a sample stream flows through tube 10 to conduit 14 where it is diluted with an appropriate buffer solution from conduit 18, segmented by pressurized air 22 and thence through a mixing coil to a heating bath where it is heated to 40 C-50C. The heated sample then passes through a combined sodium ion selective electrode/reference electrode system of the type shown in Specification 1395672. The outputs from the sodium selective and reference electrodes are connected to a differential amplifier the output of which is proportional to sodium activity and hence ion concentration. Heating of the electrode speeds the response of the electrode. The electrode may be conditioned by first contacting it with a solution contacting it with a solution containing blood protein and the ions present in blood to which the electrode will respond, and the electrode is then immediately contacted with the sample. The samples may be separated by a wash solution in addition to the gas segments.
Patent GB-494599-A (GB)
Title: Improvements in deaerators for water supplies for example boiler feedwater
IPC: B01D19/00
Filed: 1937-06-18
Abstract: <PICT:0494599/III/1> In a feedwater heater and de-aerator, the water flows downwards through a number of horizontal perforated trays 4a between which steam entering below the tray flows inwardly to a central passage 5 communicating with a steam and gas outlet 6. Baffles 9 in the central passage restrict the steam flow between the lower trays.  In a modification, the trays are arranged in a horizontal cylindrical casing, and the air and gases flow from the central passage between the trays to a horizontal perforated escape pipe at the centre of the casing.
Patent GB-495980-A (GB)
Title: Improvements in or relating to demountable freight containers
IPC: B66C1/66
Filed: 1937-06-18
Abstract: 495,980. Handling transferable loadcontainers. TENNANT, W. J. (Motor Terminals, Inc.) June 18, 1937, No. 17060. [Class 78 (iv)] [Also in Group XXXII] A freight-handling system comprises a demountable container having a pair of skid rails on the bottom and hoist attaching devices at the eaves and a road vehicle provided with propelling mechanism which may be attached to the container to move it horizontally on or off corresponding guide rails on the vehicle, the hoist attaching devices providing means for a lifting device whereby the container may be raised or lowered from the vehicle. As shown, the removable body, Fig. 1, comprises hinged side doors 30, tail gates 50 and roof door 70 accessible by rungs 85 on a door locking post 130 and by a transverse roof platform 80. Skid rails 100 are provided at the bottom of the container and a band 60, attached to the upper ends of the side and end walls, is provided with hooks 61, the side walls being supported by transverse roof beams. The floor comprises longitudinal beams 11, Fig. 10, recessed to receive cross beams 17 supporting floor'planks 90 covered by plates 92. The hinged side doors 30 abut against inwardly flanged plates around the doorway and are locked by the vertical post 130, the upper end of which is inserted into a channel 35 and the lower end bolted to a seating 36. The post 130, Fig. 5, is provided with opposed angles 131 which engage the flanged edges 32 of channels 31 on the doors in the locked position. The rungs 85 of the ladder are secured at the centre to the locking post 130 and have upturned ends 86, 87. The end gates 50, Fig. 4, are pivoted on a bar 54 protected by an offset plate 42, the gate being enclosed in a channel 55 having one side lipped at 56 to form sealing means when closed, the gate being locked by a sliding bolt 150. The roof door 70, Fig. 6, comprises a frame 112 hinged at 116 and recessed to engage the upwardly turned ends of plates 72, 74 which are bent to receive the edges of corrugated roof plates 62, the plates being secured together by transverse tubular members 68, 69 which engage above and below the troughs of the corrugations. The container may be raised by the hooks 61 by a gantry crane and deposited on another vehicle or a vehicle may be provided with hinged rails which engage with the runners 100 and are adapted to be raised by hydraulic means on the vehicle to tip the container for discharge of the contents through the end gate. The container B, Fig. 13, may be transferred horizontally from one vehicle to another by means of bridge bars D connecting the two vehicles and parallel endless chains F mounted in channels alongside the skid rails E and driven by a motor G on the vehicle, push-pull bars H being connected to the chassis and container. Hooks 105, Fig. 4, are provided for securing the container on the vehicle and when several containers are mounted on a vehicle the platforms 80 provide a continuous gangway from one end of the vehicle to the other. Specification 474,362 is referred to.
Patent GB-104847-A (GB)
Title: An Improved Electric Battery Lamp.
Inventor: HAMILTON JOHN EDWARD
IPC: B61L5/18
Filed: 1916-07-25
Abstract: 104,847. Hamilton, J. E. July 25, 1916. Lenses. - A planoconvex condensing-lens is interposed between the electric-lamp bulb of a battery lamp and its light-projecting lens. In one form, two planoconvex lenses B, C are separated one from the other and are arranged with their plane surfaces facing one another.
Patent GB-638783-A (GB)
Title: Jewellery
IPC: A44C1/00
Filed: 1948-06-24
Abstract: 638,783. Jewellery. ASPREY & CO., Ltd., and KING, R. C. June 24, 1948, No. 17078. [Class 43] A brooch or earring C has a fastening comprising a coiled pin D hinged to the ornamental part and spring-urged to the closed position, so that the ornament may be either pinned on a garment or clipped on an ear lobe, the term "coiled pin" denoting a pin bent to form at least one convolution of a circle, square or other figure, the pointed end E extending beyond the end of the base convolution and being bent outwardly therefrom. A flat member G forming part of a hinge is secured to the inside of a ring C which carries the ornamental part A, B of the device ; one end of a pin D, shaped into a flat helical coil, is secured to another part F of the hinge, the point E of the pin being preferably located inwardly of the perimeter of the coil and also slightly above the plane thereof, so that when the device is used as an ear clip piercing of the lobe by the,point is avoided. The part F of the hinge includes a projection having a straight central edge H and two sloping side edges J, J<SP>1</SP> which act as over centre lugs for co-operation with a blade spring L secured to the hinge, e.g. by bending round the edges M of the flat member G to embrace it. The pin D may thus be held closed, or at right angles to the ornament, or fully open, accordingly as the spring L is engaged by the edge J<SP>1</SP>, H or J. When the device is used as a brooch the pin is pressed through the material and rotated through at least one turn to secure it.
Patent GB-327060-A (GB)
Title: Improvements in amphibian aircraft
IPC: B64C35/00
Filed: 1929-06-05
Abstract: 327,060. Short, A. E., and Short, H. O. June 5, 1929. Land wheels and skids; shock - absorbers, applications of.-An aircraft having a float or boat 1 beneath the central portion or body of the machine has wheels mounted in forks 8<1> upon a transverse axle 3 which is angularly adjustable by worm gear 16, 17 to raise and lower the wheels. The axle 3 passes through a trough 14 in the float and is supported on bearings 4 which allow the axle to flex under load, the gear 16, 17 being mounted in a light casting which can rise and fall in grooves in the trough 14 as the axle bends. The portions of the axle projecting beyond the bearings 4 are enclosed by streamlined casings 6. The forks 8<1> are made telescopic and are provided with buffers 10. The worm gear is actuated through a universal joint from a shaft 22 extending into the cockpit. The rear end of the float is fitted with a rudder having a broadened lower portion projecting beneath the float to act as a skid; this rudder is described in Specification 326,757.
Patent GB-476791-A (GB)
Title: Improvements in and relating to mixing machines
IPC: B01F15/00
Filed: 1937-06-21
Abstract: 476,791. Centrifugal machines. AEBI, J. June 21, 1937, No. 17270. Convention date, March 2. [Class 23] A centrifugal machine for mixing paints, colours, and other materials has a rotor n keyed to the shaft o rotated through bevel gearing l and the pulley h fast on the shaft i. The driving mechanism is mounted on the hinged lid g of the container b. The rotor n has passages s, the cross section of which decreases from the centre outwards, and perforated walls t are arranged opposite the open ends of the passages. Curved guide blades u are arranged in the spaces between the passages s in the rotor. A feed screw r rotates with the rotor. The material in the container b passes into the rotor through upper and lower openings w, the material passing through the lower opening being helped by the screw r. It is then flung outwards through the passages s against the walls t where any lumps in the material are broken. The escaping material is then flung against the guide blades u and is flung outwards in a mixed and homogeneous condition.
Patent GB-1352387-A (GB)
Title: System for adjusting the value of a resistance to a predetermined  value
IPC: G01R27/02
Filed: 1971-05-26
Abstract: 1352387 Resistors COMMISSARIAT A L' ENERGIE ATOMIQUE 26 May 1971 [26 May 1970 14 May 1971] 17300/71 Heading HIS A system for adjusting the value R of a resistance to within a predetermined limit of a value Ro by passing a series of power pulses of consecutively increasing power through the resistance to cause oxidation of the material thereof comprises at least two read-in circuits, a read-in circuit 2 for the value Ro and a read-in circuit 4 for the accuracy with which R is required to be adjusted to Ro, i.e. within 10%, 1% or 0À1%; a comparator b, for comparing the values of R and Ro, to which the circuits 2, 4 are connected and having two inputs one of which has two terminals 8, 10 across which the resistance to be trimmed can be connected; a store and control circuit 12 connected to the comparator output and which determines the power of the first pulse and the power increment of the consecutive pulses; a generator 14 producing the pulses connected to the store and control unit output and having output terminals 16, 18 across which the resistance to be trimmed can be connected, the generator having a clock circuit 20 connected to it for the purpose of controlling the repetition frequency and the average width of the pulses. The specification describes two embodiments of the system in detail. In the first (Figs. 2 and 3, not shown) a series of constant width and repetition frequency pulses are supplied to the resistance, each pulse being a constant incremental voltage greater in height than the previous pulse, the initial pulse voltage and the incremental voltages being determined from the value of Ro and the initial value of R, until R is within 10% of Ro as determined by a unit of the comparator. If 10% accuracy is required the process terminates but if 1% accuracy is required a new incremental voltage is calculated and the process continues until 1% accuracy is achieved. The process is then repeated if 0À1% accuracy is required. If at any time the value of R is above Ro by greater than the required accuracy, the resistor is rejected. In the second embodiment (Figs. 4, 5 and 6, not shown) the repetition frequency of the pulses is varied in addition to the pulse height. A series of increasing magnitude pulses, starting from zero, are fed through the resistance until the resistance value is within a given percentage of Ro, e.g. 80%. The pulse height then remains constant but the pulse frequency is decreased in increments for a fixed period of t 0  (Fig. 4, not shown). If after time t 0  the value of R is not within the required limits of Ro, the amplitude of the pulses with decreasing frequency is increased, the increments being smaller than in the first stage, until the required resistance value is obtained.
Patent GB-399614-A (GB)
Title: Improvements, in or relating to apparatus for testing of articles by compression
IPC: G01N3/14
Filed: 1932-06-18
Abstract: 399,614. Testing physical qualities of materials. AVON INDIA RUBBER CO., Ltd., Melksham, and CLIFFE, W., Greystones, Melksham, Wiltshire. June 18, 1932, No. 17311. [Class 106 (ii).] Apparatus for testing tennis or golf balls. rubber springs, and other articles having a compressible surface comprises a lever d pivoted to a base z and carrying a cup i that rests upon the article b to be tested with or without initial pressure regulated by a counterweight v. The test pressure is applied by means of a plunger k with a flat, pointed, &c. surface to engage the article b, the lever h connected to the plunger being fulcrumed at g on the lever d, and carrying a direct-acting or geared pointer s that reads against a scale carried on the lever d. The test pressure is applied by a weight t or by a spring between the levers h, d, and the cup a may be adjusted by mechanical or fluid pressure means. A stop for limiting the movement of the lever h and for raising both levers for insertion of the article b is carried by a lever z<1>. The pointer s may actuate electric controls for openings in the track along which the tested articles pass, to sort them according to the result of the test.
Patent GB-231372-A (GB)
Title: Improved balance rudder
IPC: B63H25/38
Filed: 1924-07-21
Abstract: 231,372. Kirtelsen, E., and Lloyd Propulsion, Ltd. July 21, 1924. Rudders.-A balanced rudder is mounted so as to be transversely slidable relative to its shaft. The rudder has three connected blades a, Figs. 1 and 2 the centre blade having elongated slots g, g<1> in the upper and lower frames f, f<1> through which passes the shaft b. Levers c, c<1> on the shaft are pivotally attached to levers d, d' on a rod e freely supported in the frames f, f<1>. Rotation of the shaft b causes angular motion of the rudder which adjusts itself across the shaft into a balanced position.
Patent GB-579237-A (GB)
Title: Improvements in or relating to piezo-electric crystals for generating mechanical supersonic waves in fluids and for other purposes
IPC: H03H9/17
Filed: 1942-12-08
Abstract: 579,237. Piezo - electric crystals. SCOPHONY, Ltd., and GALE, A. J. Dec. 8, 1942, No. 17434. [Class 40 (v)] The frequency response of a piezo-electric crystal is broadened by coating at least one of the crystal faces with a layer of metal, the thickness of which is different at different parts of the crystal face. As shown, both crystal faces have a thin chemically deposited layer of silver 11. The back and edges of the crystal have a thick electrolytically deposited layer of copper 12. The face of the crystal has a thick electrolytically deposited layer of silver 13 on one half of its surface, which may be followed by a layer of electrolytically deposited copper. By suitably placing layers of different thicknesses, various desired response curves may be obtained. The metal layer may alternatively consist of aluminium.
Patent GB-681088-A (GB)
Title: Method and apparatus for manufacture and deposition of a bituminous covering of an embankment foot
IPC: E02B3/12
Filed: 1951-07-23
Abstract: 681,088. Subaqueous building work. NAAMLOOZE VENNOOTSCHAP AANNEMERS EN WEGENBOUW MIJ. VOORHEEN FIRMA J. HEIJMANS. July 23, 1951 [April 5, 1951], No. 17436/51. Class 68(ii) In the manufacture and deposition of a bituminous covering for an embankment foot, the covering is moulded on an endless conveyer carried by a tiltable frame 1 on a barge or pontoon 4. As the barge withdraws from the bank the moulded material is discharged as a layer on the bank.
Patent GB-1172280-A (GB)
Title: Insulated Gate Type Field Effect Transistor
IPC: H01L23/485
Filed: 1967-04-17
Abstract: 1,172,280. Field-effect transistors. MATSUSHITA ELECTRONICS CORP. 17 April, 1967 [9 May, 1966], No. 17450/67. Heading H1K. In an IGFET, that part of the gate metallization to which the lead is bonded is supported by insulation which lies over a region in which the surface of the semi-conductor substrate is made of the opposite conductivity type to the bulk. By applying a bias to the gate electrode of polarity such as would reverse bias the junction between surface region and bulk it becomes possible to use a transistor in which the insulation under the gate connection area has become damaged during bonding. The structure has the further advantage (with intact insulation) of reducing the gate-source capacitance since the components due to the insulation and PN-junction are in series.