baber/WOPTO huggingface dataset:
Patent GB-1417111-A (GB)
Title: Warning device for a drip apparatus having a drip chamber
IPC: A61M5/168
Filed: 1971-11-18
Abstract: 1417111 Surgical drip apparatus TRIADYNAMICS (MACHINES & PATENTS) LTD 16 Feb 1973 [18 Nov 1971] 53687/71 Heading A5R [Also in Divisions G1] In a drip apparatus warning device a light weight body 3 is clamped on a drip apparatus 1 to straddle with its recess 3A a transparent drip chamber 2, which may contain a transparent float 2A, and the body 3 has an aperture 3A in which a radiation source 7A directs a beam onto a photo-electric means 9 and when the float 2A or a drip does not interupt the beam operates a warning lamp 78. A plurality of warning devices can be connected to a single alarm unit, Fig. 5 (not shown). In alternative arrangements Figs. 6-14 (not shown) the warning device may actuate auxiliary means such as a rotalizer, a drip rate meter, a solenoid fail shut-off device, a drip rate servo controller, or a combination of any of the auxiliary means.
Patent GB-1212848-A (GB)
Title: Process for heating oxygen to high temperatures
IPC: H01J37/32
Filed: 1967-11-27
Abstract: 1,212,848. Arc heating of gases. FARBENFABRIKEN BAYER A.G. 27 Nov., 1967 [1 Dec., 1966], No. 53779/67. Heading H5H. Oxygen or an oxygen/inert gas mixture is heated by an electric arc discharge between cooled electrodes, at least one of which is a composite of silver or gold, or certain silver/gold alloys, with carbon or graphite, the composite containing 10 to 50% of the metal or alloy, the metal oxides of which are unstable above 500 C. and the thermal conductivity of which, as measured at 20 C., is greater than 0À33 cals./ cm. sec.  C. The arc is moved rapidly over the electrodes either by a magnetic field or by introducing the gas tangentially. The insulator mountings for the electrodes are hexagonal boron nitride, silicon nitride, quartz or quartz glass. The gas to be heated may be pre-heated in an oil or gas-fired heater before entering the arc. The heated oxygen-containing gases are reacted with titanium tetrachloride to produce finely divided titanium dioxide.
Patent GB-1443221-A (GB)
Title: Artificial heart valve
IPC: A61F2/24
Filed: 1973-11-20
Abstract: 1443221 Valves MEDAC GES FUR KLINISCHE SPEZIALPBAPAKATE mbH 20 Nov 1973 53787/73 Heading F2V [Also in Division A5] An artificial aortic or pulmonary heart valve comprises three flexible pockets 2 mounted within a flexible sewing ring 1. When the valve is open the pockets lie closed against the inside of the ring but on reversal of flow the pockets open and contact each other thus preventing back flow. The surface of an open pocket, were it not to contact the other pockets, would be ellipsoidal in shape. The pockets are constructed from a highly flexible material with a high flexural fatigue strength such as a woven polyester coated with silicon rubber to prevent blood coagulation. The sewing ring can be made from a "Dacron" (Registered Trade Mark) woven material.
Patent GB-1597599-A (GB)
Title: Gear hob
IPC: B23C5/12
Filed: 1977-12-21
Abstract: The cutter consists of several discs (1, 2, 3) with plane-parallel end faces (5, 6) and helical toothed rims (1a, 2a, 3a). The toothed rims (1a, 2a, 3a) are fitted with interchangeable indexable carbide inserts (10, 11) arranged in a staggered-tooth manner. Through these features, a hobbing cutter of maximum efficiency is obtained which is suitable for producing large tooth systems. <IMAGE>
Patent GB-1270076-A (GB)
Title: Automatic storage system for non-free flowing products
Inventor: GREGOR VAUGHN
IPC: B65G69/00
Filed: 1970-11-13
Abstract: 1,270,076. Feeding material to hoppers; endless conveyers. V. GREGOR. 13 Nov., 1970, No. 54071/70. Headings B8A and B8S. Material is fed to a storage hopper 15, Fig. 1, by a bucket conveyer 12 and a shoot 14 which travels to and fro along the length of the hopper so as to fill the hopper evenly from right to left under the control of sensor means located below the shoot. The conveyer 12 is supplied by a vibrating shoot 13 and the buckets 18, Fig. 7, are tipped by a cam 22 on the shoot 14 as the conveyer moves over the shoot. The hopper is discharged into a vibrating shoot 17, Fig. 2, by an endless conveyer 16. The shoot 14 automatically moves between switches 120, 121 located at opposite ends of the hopper but this movement is modified by the amount of material in the hopper as indicated by the sensor means. The shoot 14 is also vibrated and the material falls through slot 84, Fig. 1. The discharge conveyer 16 operates intermittently and is controlled by photo-cells which detect material in the delivery shoot 17. The arrangement ensures that material leaves the hopper in the same sequence as it enters. Fig. 9 (not shown) illustrates a control circuit. The circuit controlling the movement of the shoot 14 towards the right-hand end of the hopper incorporates a time delay.
Patent GB-1413538-A (GB)
Title: Cleaning filter boxes
IPC: B01D46/12
Filed: 1972-11-23
Abstract: 1413538 Filtering; cleaning filters by suction LTG LUFTTECHNISCHE GmbH 23 Nov 1972 [23 Nov 1971 24 Nov 1971] 54220/72 Heading BIT In a filtering apparatus (e.g. for the textile industry) comprising stationary filter boxes 10 and in which air to be purified is sucked from lines 5 through at least one conical filter 9 in each box, by radial impellers 6 and clean air is discharged through openings 26, each filter box 10 is cleaned in turn under the control of device 17 by adjusting one or both flap valves 23, 24 and opening valve 22 so that suction device 16 sucks air through opening(s) 26 and through filter 9 to clean the filter. During cleaning the device 16 also sucks impure air from lines 5 and impeller 6 is preferably kept in operation. The air used in cleaning is filtered in rotary drum 15 or passed to a cellar. The valves 22 and 23 and 24 may be controlled by piston-cylinder means 29 and 35 respectively. In another embodiment flap valves 23 and 24 may pivot about one end thereof so that the pressure side of impeller 6 may be cut off from the suction side.
Patent GB-1281410-A (GB)
Title: Magnetic memory means
Inventor: BARON JEAN
IPC: H04M1/276
Filed: 1969-11-05
Abstract: 1281410 Repertory dialler J BARON 5 Nov 1969 [5 Nov 1968] 54352/69 Heading H4K [Also in Division G5] In a system for storing numbers for subsequent selection and transmission to line, each four digit number is stored as four groups of four binary numbers on one track 76 of a drum covered by magnetizable material (see Division G5). The tracks are recorded and read by a movable hand 40 while a single reference track 16 and fixed head 17 are employed to bring step-by-step motor 15 to its normal position. Operation of record keys (11), followed by depressing a selected digit key (Figs. 2 and 3, not shown) causes a pattern to be set up on a first register 19 ... 22 equivalent to sixteen minus the digit selected. Release of the key feeds pulses to terminals 24, 25 and causes a second register 31, 32 to shift and motor 15 to advance one step, and a pulse is recorded if bi-stable 22 had been so set. The process is repeated until all four digits are recorded and the second register is returned to normal. Key (FN) is then depressed, resetting the first register and causing the motor to run round to its zero position. Upon depressing read key (L), a pulse is fed to terminals 24, 25 and the motor makes one step, whereupon the recording affects bi-stable 22 and as the motor stops, the rest of the first register is effective. After delay due to 49, 50, astable 52 feeds impulses to line 53 and the register 19 ... 22 until it is restored to normal, and stops astable 52. A switch (23) may be set so that pulses are fed out as soon as recording is completed. It is stated that a card carrying magnetic tracks may be used and fed between a plain drum and the magnetic head.
Patent GB-1362434-A (GB)
Title: Crankshafts
IPC: F16C3/10
Filed: 1971-11-24
Abstract: 1362434 Crank-shafts C V CROWE 24 Nov 1971 54509/71 Heading F2U A throw of a crank-shaft comprises two plates 12, each with a hole for shaft 15, and an eccentric circular flange 16 (e.g. encircling the shaft) connected to one or both plates 12. The throw may be made of two parts, as shown, or be integral. The plate may have a crescent-shaped cut-out 17 comprising arcs concentric with the flange 16 and the shaft 15. The plate outline may comprise two circular arcs similarly centred.
Patent GB-1254243-A (GB)
Title: Process for treatment of proteinaceous materials and compounds suitable for use therein
IPC: C07D303/16
Filed: 1969-11-07
Abstract: 1,254,243. Treating wool. J. P. STEVENS & CO. Inc. 7 Nov., 1969 [8 Nov., 1968], No. 54629/69. Heading DIP. [Also in Division C3] Woollen fabrics are treated to improve their dimensional stability by applying a compound of the general formula  where J is a di- or tri-valent aliphatic radical having a molecular weight of 14 to 5,500, R is H or C 1-5  alkyl, Q is a divalent aromatic or alkyl-subst. aromatic group of 6-18 carbon atoms, A is epoxyalkoxy, or Az, -NHCaH 2a  Az or -OCaH 2a Az where Az is an aziridinyl radical which may be alkyl-substituted and a is 1 to 4, and m is 2 or 3. The compound is applied from a liquid medium and insolubilised, e.g. by heating. The radical J may be -(CH 2 ) x -, -(CaH 2a O) x Ca H 2a -, where x is 1 to 100 and a is 1 to 4, (CH 2 CH=CHCH 2 ) u - derived from polybutadiene, u being about 6 to 100, -CaH 2a  (OCaH 2a ) x - O-L-O (CaH 2a O) v  CaH 2a - where L is alkylene, which may be interrupted by O, S or NR, or is divalent alicyclic radical, and x and y are independently 1 to 100. As a trivalent radical J can be, for example, oxyalkylated glycerine radicals. The compounds are preferably used in combination with a coreactant, e.g. a polybasic acid or polyamine, which may be added together with the aziridinyl compound or in a separate step. Other functional finishes may also be present, e.g. acrylics and their salts and fluorocarbons. The wool may be in the form of a fibre, yarn or fabric and may be blended with other natural or synthetic fibres. Application may be from a solution, e.g. in dichloromethane diluted with dimethyl formamide, or emulsion. After insolubilising, the textile is preferably washed.
Patent GB-1342948-A (GB)
Title: 11-alkoxy steroids processes for their preparation and compo sitions incorporating them
IPC: A61K31/565
Filed: 1971-11-24
Abstract: 1342948 11-Alkoxysteroids ROUSSELUCLAF 24 Nov 1971 [24 Nov 1970] 54670/71 Heading C2U [Also in Division A5] The invention comprises compounds of formula wherein R is C 1-4  alkyl; R<SP>1</SP> is optionally substituted C 1-6  hydrocarbyl; R<SP>2</SP> is H or C 1-18  carboxylic acyl ; X is C 1-4  alkyl ; Y<SP>1</SP> and Y<SP>2</SP> are each H or Me; and enol esters thereof. The above 17-esters and 3-enol esters are conventionally prepared from the free 17#- hydroxy-3-ones and the latter are prepared by one of the following syntheses. Synthesis (a): from compounds of formula (wherein Y is C 1-4  alkyl) by Birch reduction to give a 3-alkoxy-#<SP>2,5(10)</SP> compound which is then successively oxidized and hydrocarbonated at the 17-position and finally hydrolysed to generate the 3-oxo-#<SP>4</SP> grouping. Synthesis (b): as synthesis (a) but in which the initially obtained 3-alkoxy-#<SP>2,5(10)</SP> compound is converted (either directly or via the #<SP>4</SP>-3-one) into a 3-ketal-#<SP>5(10)</SP> compound (possibly with some 3-ketal-#<SP>5(6)</SP>) before 17-oxidation &c. Synthesis (c): from compounds of formula (wherein R<SP>3</SP> is a saturated hydrocarbon group) by Birch reduction and hydrolysis. Synthesis (d): from compounds of formula by the successive steps of 11-etherification, ring A aromatization (by isomeric rearrangement), 17-ethynylation, 3-etherification, reaction with an alkali metal (M) amide to produce a 17#- OM-17α-C#CM compound. Birch reduction and acid hydrolysis to give a 17#-hydroxy-17α. vinyl product. 3,11#-Dimethozy-13#-ethylgona-1,3,5(10)-trien- 17#-ol is prepared from 3-hydroxy-11#-methoxy- 13#-ethylgona-1,3,5(10)-trien-17-one by 17-reduction and 3-methylation (Example 4).
Patent GB-1488664-A (GB)
Title: Liquid storage installations
IPC: B65D88/06
Filed: 1973-11-24
Abstract: 1488664 Storage tanks in bunds BRITISH INDUSTRIAL PLASTICS Ltd 25 Nov 1974 [24 Nov 1973] 54674/73 Heading E1T A liquid storage tank 1 is mounted in a bund 3 covered by a layer of-or partly filled with-a body of non-inflammable material 4 permeable to the liquid, impermeable to water and having a low-thermal conductivity as defined in the Specification. The tank is supported on pillars 2 and the bund is filled with a urea formaldehyde resin sprayed in situ and allowed to cure. The space within the block may alternatively be filled with blocks of the above material bonded to-gether. In a modification, Fig. 2 (not shown) the space between the tank and the upper wall of the bund is provided with a cover consisting of layers of suitable material supported if desired by chicken wire. Again, the material may envelope the tank, see Fig. 3 (not shown). For numerous minor modifications, materials employed and fire hazard test results the Specification should be referred to.
Patent GB-1245798-A (GB)
Title: Apparatus and method for generating linear voltage
IPC: G01R13/24
Filed: 1968-11-18
Abstract: 1,245,798. Transistor sawtooth generators. IWATSU ELECTRIC CO. Ltd. 18 Nov., 1968 [15 Dec., 1967], No. 54695/68. Heading H3T. A ramp generator consists of an integrator 14 normally inhibited by having its output 18 fed back via a differential amplifier 21, 24 to its input, and a bi-stable 11 responds to a trigger pulse at 17 to unbalance the differential amplifier by turning T21 on and T24 off, so that the integrator is enabled to generate a ramp, a feedback circuit 16 acting to reset the bi-stable and terminate the ramp when the latter reaches a predetermined value. The integrator includes a F.E.T. 27 acting as source follower between the Miller capacitor 30 and the base of a transistor 29. A positive trigger pulse at 17 switches a tunnel diode 19 to its high voltage condition and a transistor 20 is turned on, thus lowering the potential on the base of the tran-  sistor 21 of the differential amplifier, and raising its collector potential C. This causes a diode 25 to be reverse biased and the integrator is free to generate a ramp. As the output 18 falls in potential, a diode 31 in a clipping circuit 15 becomes reverse biased at a voltage determined by resistors 34, 35 and a diode 32, which voltage is thus maintained in the base circuit of transistor 24 to ensure that it remains off. When the ramp reaches a low enough voltage, the feedback circuit 16 causes the tunnel diode 19 to switch to its low voltage state, the transistor 20 thus turning off, and the transistor 21 also tending to turn off. Its collector potential at C falls and allows the Miller capacitor 30 to discharge and the output 18 to rise sharply. When the output 18 reaches its upper level, diode 31 becomes forward biased and raises the base potential of 24 so that the differential amplifier operates in the linear range. The output 18 is now effectively connected to the input of the integrator, and a stable level is maintained, irrespective of changes made in the value of a resistor 26 to vary the period of the ramp. A delay circuit may be incorporated at the bi-stable 11 input.
Patent GB-1061520-A (GB)
Title: Steel manufacture
IPC: C21C5/46
Filed: 1965-12-28
Abstract: The operation of a converter steel making process, particularly one in which oxygen with or without slag forming material is blown downwards into the melt, is controlled by calculating the amount of heat loss through the converter wall using at least one thermocouple placed on or in the wall.  The rate of charging scrap for cooling is increased or decreased during refining when decarburisation is slow according to whether the temperatures of the converter wall indicate that the oxygen blown in is oxidizing the slag or burning the CO. The amount of CO2 in the space above the melt in the converter may be also measured and correlated with the wall temperatures.
Patent GB-1457890-A (GB)
Title: Chromatography
IPC: B01J20/32
Filed: 1973-11-28
Abstract: 1457890 Polymer-coated particles MONSANTO Ltd 28 Oct 1974 [28 Nov 1973] 55076/73 Heading C3R [Also in Divisions B1 and B2] A fluid-permeable material for use as a stationary phase in a chromatographic process, comprises particles of an inert material coated with an aromatic polymer, the polymer being cross-linked and one in which aromatic nuclei are linked to each other directly or through an oxygen, sulphur, carbon or silicon atom, at least some of the nuclei being linked directly. In Examples prepolymer is obtained by reacting terphenyls with benzene-1,3-disulphonyl chloride, sulphur dioxide and hydrogen chloride being evolved; the prepolymer is then crosslinked by reaction with further benzene-1,3- disulphonyl chloride; in one instance n-dodecylphenyl groups are introduced by including p-ndodecylbenzene sulphonyl chloride in the crosslinking reaction; the polymer is coated on kieselguhr and the coated particles are used in the chromatographic separation of terphenyls, polyphenyl ethers and polychlorinated biphenyls.
Patent GB-1408779-A (GB)
Title: Method of and apparatus for welding a saddle-shaped plastics member to an elongate plastics member
IPC: F16L47/03
Filed: 1972-12-01
Abstract: 1408779 Seaming GEORGE FISCHER AG 1 Dec 1972 [3 Dec 1971] 55727/72 Heading B5K [Also in Division F2] A saddle-shaped plastics member 3<SP>1</SP>, for connection to a branch pipe or a pipe support, for example, is welded to an elongate plastics member 2 by melting the saddle and elongate surfaces by heating wherein the whole peripheral surface of the elongate member is melted at the location of the saddle to reduce stresses in the elongate member. In one embodiment, as shown, the heating is effected by passing a current through a mat 25 of plastics foil having a conductive strip with plugs 26. Straps 27 press the melted surfaces together to weld them. The conductive strip in the mat 25 may be stamped from sheet metal or printed or may comprise wires embedded in plastics foil. Alternatively, the mat may comprise a metal powder impregnated foil. Instead of direct electrical connections, heating by induced or eddy currents may be adapted. In an alternative embodiment, the elongate member is heated by a removable conductor mat wrapped around the member and held by tongs (18) (Fig. 6, not shown). In a further embodiment, heated surfaces (12, 13) (Fig. 5, not shown) carried on tongs (10) are clamped around the elongate member and the saddle may also be placed on the opposite shaped face of one of the surfaces to effect heating of the two members simultaneously. Heating may alternatively be by hot gas blown through a housing (35) (Fig. 11, not shown) or by a radiant heater.
Patent GB-1319252-A (GB)
Title: 1-phenyl-alkanols and process for making same
IPC: C07D211/76
Filed: 1970-06-05
Abstract: 1319252 Para hydroxyalkyl phenyl piperidine CIBA-GEIGY AG 5 June 1970 [5 June 1969 11 Dec 1969 24 April 1970] 55884/72 Divided out of 1319251 Heading C2C Novel compounds of the general formula wherein R is hydrogen, methyl or acetyl and wherein the piperidine ring may have an oxo group on the ring carbon adjacent to the nitrogen may be prepared by (1) reduction of a piperidyl substituted acetophenone or (2) N-acetylation of the piperidine ring or (3) reduction of 1 - benzyl - 4 - (p - acetylphenyl) - 1,2,5,6 - tetrahydropyridine. For preparation of the starting materials above and the use of the novel compounds to produce pharmaceutically active compounds see parent Specification 1,319,251.
Patent GB-1410227-A (GB)
Title: Powder camera
IPC: G01N23/205
Filed: 1972-12-06
Abstract: 1410227 X - ray diffraction apparatus PHILIPS ELECTRONICS & PHARMACEUTICAL INDUSTRIES CORP 6 Dec 1972 [9 Dec 1971] 56233/72 Heading H5R A camera for the examination of powders by X-ray diffraction comprises a cylindrical casing 10 having an X-ray inlet aperture 21 and a tapered collimator 22 for directing the beam onto a powder sample on holder 18 and a film magazine assembly 12 mounted on the external circumference of the casing 10 and adapted to feed film into the casing through an aperture 29 until it extends circumferentially to a stop 29a and to rewind the film into a cassette after the exposure. An assembly 24 similar to the collimator 22 is used together with a fluorescent screen in assembly 25 for the purposes of aligning the beam. Details of the film winding mechanism are described with reference to Figs. 4 to 6 (not shown), the main feature being that the film is fed by two friction rollers (44a). A special holder for the sample, Figs. 7 and 8 (not shown) provides for rotation of the sample about the axis of the casing 10 and simultaneously about an axis inclined at 45 degrees to the first axis.
Patent GB-1505083-A (GB)
Title: Overhead electric traction systems
IPC: B60M1/18
Filed: 1974-12-31
Abstract: 1505083 Section insulator BICC Ltd 30 Dec 1975 [31 Dec 1974] 56249/74 Heading H2C In a section insulator 10, both catenary wires 2, 4 and contact wires 1, 3 are connected either to the respective outer ends of insulating members 11, 12 joined by metal member 14, or to the outer ends of a single insulating member having a metal insert member on its lower edge, which does not extend to the ends of the insulating member, the lower surfaces of the insulating and metal members and contact wires being coplanar. The members preferably have a rectangular cross-section, and the metal member may be earthed. Resilient or resiliently mounted support means 21-24 allow the section insulator 10 to move vertically by substantially the same amount as the contact wire and at least the outer support means resist torsion forces applied to the section insulator. Guides 25-28 form arcing horns in conjunction with member 30 and assist the transition of a collector shoe (not shown) between sections. Instead of one rectangular metal member 14, two or more may be used, the number and relative positions being the same as those of the catenary and contact wires. The section is of use where height is restricted, e.g. tunnels, bridges, and is said to be suitable for use at speeds up to 300 km./hr. at up to 50 kV supply voltage.
Patent GB-1383687-A (GB)
Title: Polymerization of mono 1-olefins and catalyst therefor
Inventor: GALIANO F
IPC: C08F10/00
Filed: 1972-12-06
Abstract: 1383687 Polymerisation catalysts GULF RESEARCH & DEVELOPMENT CO 6 Dec 1972 [6 Dec 1971] 56279/72 Heading B1E [Also in Division C3]  Catalysts comprise at least partially hexavalent chromium oxide supported on a friable, amorphous, porous and precipitated silica of surface area not less than 150 m<SP>2</SP>/g and comprising agglomerates of silica particles, the agglomerates being of diameter 50-100Á, principally comprising individual particles of average diameter less than 0.5Á and having a significant number of pores of diameter greater than 300. The compositions may be made by impregnation or dry mixing and activated by heating at 177-816C in a dry oxygencontaining atmosphere.
Patent GB-1240744-A (GB)
Title: Rotary molecular vacuum pumps
IPC: F04D19/04
Filed: 1969-11-19
Abstract: 1,240,744. Molecular vacuum pumps. ARTHUR PFEIFFER, HOCHVAKUUMTECHNIK G.m.b.H. Nov.19, 1969 [Nov. 20, 1968], No. 56705/69. Heading F1C. In a molecular vacuum pump comprising a multi-stage set or a number of multi-stage sets connected in parallel relative to the high-vacuum side of the pump, a gas inlet communicates with an intermediate stage of the or each set. The vacuum pump shown comprises two multi-stage sets, each comprising rotors 6 and stators 7, connected to a common high-vacuum connection 2 and to a common pre-vacuum pipe 4. When the pump is being slowed down or stopped, a purified gas is fed via an inlet valve 11 and a pipe 10 to inlets 9 at one or more intermediate stages of each multi-stage set, whereby the pump is flooded by the purified gas to such an extent that molecular flow is no longer possible. This prevents lubricating oil vapours from passing to the highvacuum side of the pump, except for a negligible transfer by diffusion.