baber/WOPTO huggingface dataset:
Patent GB-1505994-A (GB)
Title: Polymerisation process
IPC: C08F4/24
Filed: 1974-06-11
Abstract: 1505994 Polymerisation catalyst BRITISH PETROLEUM CO Ltd 21 May 1975 [11 June 19741 25832/74 Heading B1E [Also in Division C3]  An olefin polymerisation catalyst is prepared by (i) heating a support material comprising silica, alumina, thoria, zirconia or composites thereof, having chemisorbed surface hydroxyl groups, successively or simultaneously with a titanium compound and one or more compounds of metals selected from B, Cu, Mg, Al, Zr, Th, V, Cr, Mo, W, Mn, Fe, Co, Ni, Zn, Ga, Sn, Pb or La at a temperature of 150-1200‹C, and (ii) incorporating in the product under substantially anhydrous conditions a chromium compound and heating at 100-900‹C to activate the catalysts. The support may be reacted with the titanium and metal compound(s) in two or more steps with intermediate rehydroxylation of the support with a hydroxyl-containing compound, e.g. water or an alcohol. The examples relate to silica-supported compositions.
Patent GB-336723-A (GB)
Title: Improvements in or relating to jacking and tyre-inflation apparatus for motor vehicles
IPC: B60S9/10
Filed: 1929-08-24
Abstract: 336,723. Pescara, R. P. Aug. 24, 1929. Combined w i t h other types of pumps. -Oil for fluid-pressure lifting-jacks is delivered by a pump adapted to act also as an air compressor for tyre inflation. The pump has two aligned pistons 52, 53 driven from the change speed gear through pinions 59, 57 and a crank 55. The piston 53 draws oil from the crank-case through a pipe 61 and discharges it through a pipe 66, while the piston 52 draws in air through holes 60 and discharges it through a pipe 62.
Patent GB-1184920-A (GB)
Title: A Printer
IPC: B41F/
Filed: 1967-06-05
Abstract: 1,184,920. Typewriters &c. DURA CORP. 5 June, 1967 [22 July, 1966], No. 25894/67. Heading B6F. [Also in Division H1] A power-operated typewriter is provided with a plurality of character selecting interposers 22, each having a different binary coded combination of control legs 26 to effect selection of a character on depression of an associated key (not shown) and consequential longitudinal displacement which is sensed by a magnetic contact device 28 (see Division H1). The device 28 is actuated by a magnet 42 depending from the interposer, the actuations producing an output signal which is indicative of the displacement of the interposer and applied to a control system 36 interconnected with an encoder (not shown) which is associated with a binary coded data storage device (not shown) controlling the operation of the typewriter.
Patent GB-1377416-A (GB)
Title: Injection mould
IPC: B29C45/28
Filed: 1972-06-02
Abstract: 1377416 Injection moulds SOC GIR P I (SOC PLAST-INDUSTRIE-GIR) 2 June 1972 [3 June 1971] 25895/72 Heading B5A An injection mould 11 has a cylindrical passage 18 connecting a feed channel 16 to a mould cavity 14 and a displaceable valve stem 19 for blocking or opening the passage 18. The volume of the passage 18 may be equal to the amount of shrinkage of the moulding matrial, the end of the valve stem 19 being complementary in shape to, the rest of the mould cavity. The valve stem may be operated by an hydraulic piston 22 and cylinder 23. The mould may comprise a plurality of moulding cavities (Fig. 4, not shown). In Fig. 5 (not shown), a single injection unit (17) is mounted on rails 31 for feeding a plurality of moulds 11.
Patent GB-1182879-A (GB)
Title: Improvements in Data Transmitting Apparatus.
Inventor: DAWSON ROGER WILLIAM
IPC: H04L25/40
Filed: 1968-05-30
Abstract: 1,182,879. Telegraphy. CREED & CO. Ltd. 30 May, 1968, No. 25896/68. Heading H4P. A keyboard transmitter includes a circuit which ensures that the time base is started and stopped at the correct times in spite of poor keying. When a key is operated a character is sent to line via the transmitter under control of time base TB, Fig. 1. Trip-switch TC is operated when a key is pressed, so causing a signal to pass from TC, via gate Gl, to set bi-stable B2, which energizes magnet EM which holds the key down. There being no output g from B2, gates G3, G4 give no output and so the time base starts. Apart from passing pulses to the transmitter, the time base generates pulses P1, P4 and P14 at the beginning, middle, and end, of a character cycle. Consequently magnet EM is de-energized when P4 occurs and the time base is stopped when P14 occurs. If repeat switch RS is operated the time base is not released unt il TC is also operated in response to depression of a key. If either the key or the repeat switch is released during a cycle the time base stops at the end of the current cycle. If a key which has been released in the middle P4 of a cycle is pressed again before the end of the current cycle the time base cycles a second time before stopping, so that the character is transmitted twice.
Patent GB-935310-A (GB)
Title: Board game
IPC: A63F3/00
Filed: 1961-07-18
Abstract: 935,310. Board games. D. C. WALMSLEY. July 18, 1962 [July 18, 1961], No. 25908/61. Class 132 (2). Apparatus for playing a board game simulating interplanetary travel, comprises a board marked with a representation 1 of the sun at its centre, and with a series of concentric circles 2 each subdivided into segments by lines 3 emanating from the centre of the board. Each circle 2 represents the orbit of one particular planet around the sun, and representations of the various planets are marked on the appropriate circle, together with representations of hazards likely to be encountered during interplanetary travel. The apparatus also comprises playing counters for movement over the board in accordance with the throw of a die, and cards and counters for scoring purposes.
Patent GB-601840-A (GB)
Title: Improvements relating to dies for cutting-out presses as used in the manufacture of boots and shoes
IPC: C14B5/00
Filed: 1945-10-05
Abstract: 601,840. Cutting-out presses; perforating- apparatus. BOSTOCK, G. S., and SHARPLES, T. G. Oct. 5, 1945, No. 25945. [Classes 31(i) and 31(ii)] A die for a cutting-out press used for cutting-out parts of boots and shoes, which is adapted to perforate the parts with designs which can be readily varied, is constructed with a master plate 10, Figs. 1 and 7, formed with a number of holes 10c of a diameter corresponding to the internal diameter of the punches 14, and the punches are formed on a punch carrying plate 12 which is secured to the master plate 10 after a required pattern of dies has been secured to the plate 12. The plate 10 is secured to a base block 10b having a yielding connection to the pressure-plate 10a, and the plates 10, 12 are formed with registering dowels and apertures, and are secured by screws after the punches are secured to the plate 12. The pattern of punches may be produced by the aid of a paper pattern sheet, which may be used for setting up one arrangement, or may be used to produce a jig for drilling a number of plates 12 to receive punches. In a modification the plate 12 may be formed with a series of apertures identical with those on the master plate, and the punches mav be fitted therein according to the desired design. The plate 12 may he formed in two or more parts each provided with its own securing and positioning means. The block 10b is cut away at 10f to permit disposal of wastage.
Patent GB-1392892-A (GB)
Title: Depleted liquid supply sensors
IPC: G01F23/00
Filed: 1973-05-31
Abstract: 1392892 Liquid level sensors SYBRON CORP 31 May 1973 [3 July 1972] 25945/73 Heading G1H A device 10 to sense when liquid being pumped from a container 26 has been depleted comprises a housing 12 defining a chamber 14, an inlet tube 22 adapted to be placed with one end 42 at the bottom of the container 26, an outlet tube 24 for connection to the pump 28, a tube 36 for priming the chamber 14, and a level sensor 32 in the chamber such that during operation of the pump the chamber 14 is full of liquid but when the liquid level in container 26 falls below end 42 the liquid level in chamber 14 falls and the sensor 32, preferably a conventional float coupled to an electrical alarm, operates.
Patent GB-906109-A (GB)
Title: Process for the manufacture of pivalic acid
Inventor: HOLMES CEDRIC WILLIAM NELSON
IPC: C07C51/353
Filed: 1960-07-26
Abstract: Pivalic acid (trimethyl acetic acid) is obtained by the interaction of isobutyl formate with a strong acid, e.g. sulphuric.  (The Provisional Specification mentions also hydrofluoric acid, and mixtures of boron trifluoride with sulphuric or phosphoric acid). Temperatures of 10 to 120 DEG C. are mentioned.  Preferably 0.5 mole or more of acid is used per mole of formate and more preferably not less than 4 moles e.g. 4-8 moles.  Specification 819,108 is referred to.
Patent GB-735037-A (GB)
Title: Improvements in yarn carrier tubes
IPC: D04B15/54
Filed: 1951-11-06
Abstract: 735,037. Knitting-machines. FEUSTEL, E. A. Nov. 6, 1951 [Nov. 15, 1950], No. 25975/51. Class 74 (2). The guide tube 12 of a yarn carrier is undercut as at 18, Fig. 3, near its end or is recessed as at 32, 33, Fig. 5, to enable the end to fracture at this point in the event of the tube inadvertently engaging the sinkers of a straight-bar machine. The tube may be provided with fins, to prevent rotation, which engage the medial slot between the jaws of the carrier. The tube may also be of circular or elliptical cross-section or a combination of both.
Patent GB-1260904-A (GB)
Title: Improvements in or relating to resiliently mounted seats, particularly motor vehicle seats
IPC: B60N2/50
Filed: 1969-05-22
Abstract: 1,260,904. Resilient seat mountings. GEORG FRITZMEIER K. G. May 22, 1969 [May 22, 1968], No. 26131/69. Headings A4J and A4U. A seat shell, e.g. for a motor vehicle, in which the spring suspension resistance is varied to suit the weight of the user is guided by a parallelogram linkage positioned at the side of or directly below the seat and having a lever 10 formed as a housing 10a, 10b for parallel rods 20, 21, forming an inner lever 11, and links 13, 14 each having one end mounted in a bearing bush 12 at each end of the housing and rotationally fast with a seat holder 23 and a fixed bracket 24, respectively. Each of the links 13, 14 has two parallel arms 17, 18 which are pivotally connected by the rods 20, 21 on each side of a pressure cylinder 26 which has an edge 33 displaceably supported on a web surface 34 of the link 14. The cylinder has a ball head 37 pivotally mounted in the housing and is urged upwardly, to raise the point of contact between the edge and the web towards the pivot axis of the link 14, by a leafspring 46 one end of which is fastened to the pressure cylinder and the other end of which slides on the rods 20, 21. The effect of the spring is overcome by a cam 40 which is operable by a spring- loaded knob 43 engaging apertures 45 in a plate on the housing for step-by-step adjustment of the edge 33 along the web surface 34, the position of maximum resilient support for a heavy user being as shown in Fig.3. The seat shell is movable in the direction opposite to the direction of loading to a raised position to accommodate a standing operator, the surface 34 being moved away from the edge 33 to a position 47 in which it is locked by engagement of a nose 46a on the spring in a notch 48 in the rod 21. The angular position of the link 14 and hence the height of the seat is adjusted by elongation of the pressure cylinder 26 by rotation of an adjusting wheel 31 to rotate a screwthreaded portion of the ball head 27 in a threaded portion of the piston rod 26a during which adjustment the distance of the edge 33 from the pivot axis of the link 14 and hence the weight resistance of the seat remains substantially unchanged. In modifications, the cam 40 is replaced by an adjusting screw having a transverse end piece in sliding contact with the cylinder wall, or, for use with a seat shell guided at its rear by rollers in an upright guide and supported on its underside on a guide rocker. The rear end of the rocker is supported in a stationary housing on a link corresponding to the link 14, the link 13 and the inner lever being dispensed with and the free end of the spring sliding on the inner surface of the housing. A screw 66 on the housing is lockable in adjusted position along a slot in a base-plate for adjustment of the seat therealong and, if the plate is curved, adjustment of the inclination of the housing.
Patent GB-857407-A (GB)
Title: Lamp shade or like ornamental object
IPC: F21V1/00
Filed: 1958-08-14
Abstract: 857,407. Lampshades. COLLINS, W. July 3, 1959 [Aug. 14, 1958; Nov. 10, 1958], Nos. 26142/58 and 35982/58. Class 75(2). A lampshade or like object is manufactured by forming parallel pleats in a sheet of relatively stiff material, e.g. parchment, buckram, a plastics sheet or a cotton fabric stiffened with cellulose acetate, weakening the material before or after pleating by making a series of scores, cuts or slits along a band or bands transverse to the direction of the pleats, each score, cut or slit extending wholly or in part transversely or obliquely to the longitudinal direction of the bands joining opposite edges of the sheet to form a tube with longitudinal pleats and gathering the ends of the tube to diameters different from those of the band or bands to form a shape having two frustoconical parts disposed coaxially. The shade shown consists of frusto-conical parts 3, 4 connected by the weakened band 5 and is supported by an internal framework forward of upper and lower rings 9, 10 joined by tie-rods 11, slots being cut in the pleats to receive the rings. The band 5 may be formed by cutting a series of straight, curved or chevron shaped slits, by scoring the material or by impressing lines thereon. In place of a single sheet, two or more sheets joined along overlapping edges may be used, one at least of the overlapping edges or an area of one of the sheets adjacent thereto being weakened.
Patent GB-785088-A (GB)
Title: Activated bleaching clay
IPC: B01J21/16
Filed: 1955-09-13
Abstract: Finely-divided clay, e.g. bentonite, is mixed with concentrated sulphuric acid, which is substantially free of water, usually of a quantity enough to activate the clay and to produce a free-flowing mixture, e.g. 5-40 per cent by weight of acid, and subsequently contacting this mixture with steam.  Preferably the clay/acid mixture is heated to 100 DEG  C. before the steam treatment, e.g. by fluidizing with heated air.
Patent GB-741057-A (GB)
Title: Improvements relating to electro-magnetic relays
IPC: H01H51/22
Filed: 1953-09-14
Abstract: 741,057. Electromagnetic relays. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., and EVERETT, D. B. Sept. 14, 1953 [Oct. 20, 1952], No. 26236/52. Class 38(5) A D.C. relay comprises a U-shapea core structure 2, 1, 16, energized by coils 3, 17 to produce opposite poles at pole pieces 5, 15 provided on the ends of the cores 2, 16. A pair of armatures 7, 8 pivotally mounted at 6 have their free ends 10, 13 resting on opposite poles 9, 12 of a permanent magnet 11 when the coils 3, 17 are not energized. The magnet 11 is supported from the pole piece 15 by brackets 14, preferably of magnetic material. When D.C. of one polarity is applied to the coils 3, 17 to produce, e.g. a south pole at 15 and a north pole at 5 the armature ends 10, 13 both become north poles whereby armature 8 is raised towards contact piece 15 and operates its respective contact set (not shown) whereas armature 7 is held the more firmly by the magnet 11 and its contact set remains unoperated. Conversely, D.C. of opposite polarity causes the contact set associated with armature 7 to be operated. To prevent simultaneous operation by both armatures by an abnormal heavy current, a locking device is provided, Fig. 2, comprising a two-armed lever 19 pivoted to the pole piece 15 at 21, the lever ends 18, 20 co-operating with the armature ends 10, 13, respectively. Hence after one armature has been operated, subsequent operation of the other armature by an increase in current is prevented since the operated armature tilts the lever 19 towards the other armature. Specification 623,167 is referred to. The Provisional Specification also refers to Specification 517,000.
Patent GB-213296-A (GB)
Title: Improvements in and relating to diaphragms for gas meters
IPC: G01F3/22
Filed: 1922-12-22
Abstract: 213,296. Gibson, R. K. Dec. 22,1922. Gas meters.-In a gasmeter of the type wherein a seamless annular diaphragm of leather &c. is attached by its outer edge to a ring fixed on the partition of the meter and by its inner edge to the edge of a sheet-metal disc, the whole forming a frusto-conical chamber, the diaphragm is shaped by a former-block made in sections A<4>. The sections are mounted on a frame A<5> formed with pockets A<6> for the reception of projections A' pro. vided on the sections, and are retained in position by rims A, B clamped thereon by means of plates A<1>, A<2> carried by a screwed central spindle A' and nut B'. The diaphragm is tied to the rim B, stretched over the former-block, and then tied to the rim A, after which the'block is removed by first withdrawing the frame A<5> and then the sections A<4>. The rim A is soldered to the meter partition and the chamber closed by a disc which is soldered into the rim B.
Patent GB-858745-A (GB)
Title: Improvements in or relating to the lining of pipes
Inventor: SCHULTZ HUBERT CHARLES
IPC: B28B19/00
Filed: 1959-07-31
Abstract: <PICT:0858745/III/1> A machine for applying a lining of, e.g. cementitious material to a pipe, is arranged to be progressed through the pipe and comprises a rotatable distributer head 11, motor means 12 for rotating the head at high speed, a conduit 13 for receiving fluent lining material from a source outside the pipe and feeding it to the head, and at least one trowel member 15, 15A driven at a slow speed from the motor 12 through a speed reducing drive unit 25. The unit 25 comprises a stationery sun spool 27 mounted on an extension piece 32 secured to the conduit 13, one or more planet spools 28 on spindles 33 carried by the head 11, and an output sun spool 29 rotatable on the extension 32 and driving the trowel members.  The planet spools are connected with the stationary sun spool by endless belts 30, and drive the output sun spool by belts 31; the necessary speed reduction may be obtained by making unequal the diameters of the sun spools, or of the two parts of the planet spools connected with them.  The trowel members 15, 15A comprise blades mounted on arms 38, 38A extending from spring-ringed hubs 39, 39A on spindles 40, 40A on a plate 42 fixed to a hub 36 which is integral with the sun spool 29.  The radial position of the trowel blades is controlled by a rod 43 on which is mounted a plate 45 connected by cords, running over pulleys (not shown) to pulleys 47 on the hubs 39, 39A. Lining material is introduced into the conduit 13 and passes through slots 50 into the head 11 which is mounted on the hollow shaft 43 of the motor 12 and comprises a number of radial plates 20, having serrated edges, and clamped between endplates 21, 22.  The head 11 distributes the material on to the pipe by centrifugal force, and it is smoothed by the relatively slowly rotating trowels 37, 37A.
Patent GB-1261266-A (GB)
Title: Device for recording information on a data record
IPC: G06K1/12
Filed: 1969-05-23
Abstract: 1,261,266. Photographic type-composing. SVENSKA DATAREGISTER AB. 19 May, 1969 [7 June, 1968], No. 26447/69. Heading B6W. Data representing figures and in the form of elongated strips is produced on short lengths of a photo-sensitive web 10 which are later cut off therefrom by development after exposure to light by lamps 19 through a row of glass fibre light-conductors 17, the lamps being selectively illuminated by pressing selected keys 21. At the same time, the figures 26 are produced in uncoded form by exposure to an elongated flash bulb 24 through cut-outs in the shape of the figures in bands 22 manually rotatable by discs 23a-23f to bring the selected figures into operative position. The web is fed by a motordriven roller 12.
Patent GB-777132-A (GB)
Title: Improvements in oxidation catalysts
IPC: C07C51/31
Filed: 1954-09-13
Abstract: Aromatic or unsaturated hydrocarbons are oxidized in the vapour phase by means of air or oxygen in the presence of a catalyst prepared by fusing, at a temperature of 900-1500 DEG  C., a mixture of 85-97 per cent of an oxide of tin, zirconium or titanium, 1-10 per cent of an inorganic vanadate, and 1-5 per cent of alumina (see Group III). Reference is made to the oxidation of naphthalene to phthalic anhydride at 400-500 DEG  C. and atmospheric pressure, benzene to maleic acid or to quinol and quinone, anthracene to anthraquinone, and ortho-xylene, isobutylene and butene-1 to phthalic anhydride. Benzene may be oxidized at 450-500 DEG  C. and a pressure of 2-10 atmospheres and toluene at a temperature of 375-400 DEG  C.  The air, which may be preheated to within at least 100 DEG  C. of the reaction temperature, is preferably used in two to five times the theoretical amount.  The catalyst may be used as a fixed bed or in the fluidized state.ALSO:A catalyst, particularly adapted for the oxidation of aromatic or unsaturated hydrocarbons (see Group IV(b)), consists of the product obtained by fusing, at a temperature of 900 DEG -1500 DEG C., a mixture of 85-97 per cent of an oxide of tin, zirconium, or titanium, 1-10 per cent of an inorganic vanadate, and 1-5 per cent of alumina.  The vanadate specified is ammonium metavanadate. The fusion product may be pulverized and the catalyst used as a mixed bed or in the fluidized state.
Patent GB-426000-A (GB)
Title: Improvements in apparatus for distributing and/or levelling road-making materials onroads or the like
IPC: E01C19/18
Filed: 1933-09-26
Abstract: 426,000. Road levelling machines. JOHNSTON, J. T. M., and HOBBS, J. E., 35, Crutched Friars, London. Sept. 26, 1933, No. 26521. [Class 107] Apparatus for levelling material on surfaces, such as on roads, comprises a road vehicle having rear wheels 11 and bogie-mounted front wheels, a carrier 13 being suspended from the chassis 10 of the vehicle by three independently adjustable connections and having levelling and distributing blades mounted thereon. The carrier may be suspended from the chassis by one forward and two rear connections of lazy-tong type, each connection comprising links 14 pivoted at 15 to the carrier and at 16 to the chassis and coupled by a right-and-left hand threaded rod 17 adapted to be actuated by a worm 20 and worm wheel. The worm shafts of the rear connections are operated directly by handwheels 24, the forward connection being operated through bevel gearing by a handwheel 23 so that all controls are within reach of an operator seated at 25. The carrier is provided with fixed but vertically adjustable inwardly inclined blades 31 to sweep excess road material into the path of distributing blades 32, 33 mounted on vertical shafts driven through bevel gearing by an internalcombustion engine 38 mounted on the carrier, the distributed material being finally levelled by an inclined blade 39 which extends across the full width of the vehicle and which is reciprocated longitudinally in its own plane by a crank 43 and connecting-rod 41. A clutch 46 is provided to couple the crankshaft with power from the engine. The longitudinally reciprocating blade 39 may be replaced by a rotary helix 50, Fig. 4, on a shaft 51 driven by the engine, final levelling being effected by a fixed blade 55 on the carrier. Specification 422,842 is referred to as showing the construction and arrangement of the blades 32, 33 and 39. The position of the carrier relatively to the road may be determined by a spirit level 26 and by graduated rods 29 which project through eyes 30 fixed on the chassis.