baber/WOPTO huggingface dataset:
Patent GB-1194653-A (GB)
Title: Fluid Operated Tool
IPC: B25B23/145
Filed: 1968-09-30
Abstract: 1,194,653. Power tools. GARDNERDENVER CO. 30 Sept., 1968 [16 May, 1968], No. 46409/68. Heading B3N. A fluid operated nut runner, or screwdriver has a control means in communication with a motor inlet port 50, the control means including a movable element 64 having opposed surfaces 67 and 70 subjected to fluid pressure forces and operable in response to the fluid pressure forces to shut off the flow of fluid to the motor. Operation.-A trigger 54 is depressed allowing fluid at supply pressure to enter a chamber 40 where with the assistance of a spring 52, a fluid supply valve 32 is moved to the right permitting fluid to flow through an opening 44 and thus to the motor 16. When the pressure in the motor inlet 50 reaches a predetermined value, this value is sensed in a cavity 72 and the resultant pressure on the surface 70 is higher than that which a preset pressure in a cavity 68 can exert on the surface 67. The element 64 thus moves upward in which position chamber 40 is vented, the pressure in area 26 overcomes the spring 52 thus closing the fluid supply passage to the motor. Movement of element 64 upwardly is augmented by fluid at supply pressure being provided in response to shifting of the element 64 via a conduit 16, Figs. 2-4 (not shown). The cut-off point of the motor can be adjusted by controlling the pressure in cavity 68 through a pressure regulating needle valve 78.
Patent GB-968900-A (GB)
Title: Preparation of flourocarbons and halofluorocarbons
Inventor: NYMAN FRANK
IPC: C07C17/26
Filed: 1961-12-29
Abstract: Hexafluorobenzene and halofluorocarbons of formula C6FnX6-n where n is an integer from 1 to 5 and X is chlorine or bromine are prepared by pyrolysing dichlorofluoromethane or dibromofluoromethane at 400-700 DEG C., preferably 575-650 DEG C., and separating the pyrolysis products, e.g. by condensing said products followed by fractional distillation and, possibly gas-liquid chromatography.  The reaction vessel preferably has a platinum surface; carbon, nickel and silica are also mentioned.  As well as hexafluorobenzene and compounds of formula C6FnX6-n, large amounts of aliphatic halocarbons are produced, in examples including carbon tetrachloride, 1,2-dichloro-1, 2-difluoroethylene, trichlorofluoroethylene, 1,1,2,2-tetrachloro-1, 2-difluoroethane, trichlorofluoromethane and tribromofluoromethane, and also a little pentafluorobenzene. Reference has been directed by the Comptroller to Specification 936,610.
Patent GB-1181697-A (GB)
Title: Movably Mounted Masking Structure for a Typewriter
IPC: B41J29/02
Filed: 1967-10-13
Abstract: 1,181,697. Typewriters. OLIVETTI UNDERWOOD CORP. 13 Oct., 1967 [14 Oct., 1966], No. 46707/67. Heading B6F. Framework.-A typewriter is constructed so that it comprises an inner frame 10 mounting the keys and type-levers, a platen with its carriage 13, carriage guide rails 14 and appurtenances 60 for ink-ribbon reels; and an outer masking structure 20 comprising side walls 21, key-board surround 22, 24, 25, 27 and which structure sliding fits in guide rails over the inner frame 10 to which it is latched in position. The latches (Fig. 5, not shown) are reached from under the keyboard surround 24, 25 and the masking structure 20 may slide forwardly into the position shown in Fig. 3, where it is arrested by an arm 44 of a releasable stop 45. A finger piece 50 on the stop 45 may move the stop so the structure 20 may be completely slid off the inner frame 10. The inner frame has pockets 60 formed on side members 11 for the ink ribbon spools. Means are provided to accurately locate the masking structure in position.
Patent GB-1015157-A (GB)
Title: Improvements in or relating to hollow sheet metal articles such as heat exchangers
IPC: F28F1/12
Filed: 1962-12-11
Abstract: 1,015,157. Making heat-exchangers; bending; shearing; extruding. OLIN MATHIESON CHEMICAL CORPORATION. Dec. 11, 1962 [Dec. 11, 1961], No. 46769/62. Headings B3A, B3E, B3P and B3W. [Also in Division F4] A finned sheet-metal article, particularly a heat-exchanger, Fig. 5, having internal fluid passages 2 bounded by a web 3, has its fins 23, 24 formed by piercing and bending tabs out of the web and elongating and thinning the tabs by extrusion. Heat-exchanger panels are preferably made from a composite sheet using a stop weld material and then opening out the passages by fluid pressure. The fins 23, 24 are formed by a manually or power-operated punch 8 with co-operating dies 10, 11 which pierce, bend and extrude the metal in a continuous stroke. In a modification, Fig. 1A (not shown), clamping plates are provided on top of the panel and above the dies 10, 11. The punch may have a round nose, Fig. 9, for bending out tabs which have been previously slit by cutting, sawing or drilling, or it may have a side cutting edge, Fig. 10 (not shown), which forms one tab only at each perforation. The fins may extend at right angles to the fluid passages, Fig. 6 (not shown), or on both sides of the panel, Fig. 12 (not shown), by using a pair of oppositely acting punches 8<SP>111</SP>, Fig. 11. Clamping dies 10<SP>1</SP>, 11<SP>1</SP> are also provided. Stop weld material may be provided at the positions where the tabs are formed so that they may subsequently be opened out into multiple fins 38-11, Fig. 15 (not shown).
Patent GB-1255081-A (GB)
Title: Polyvinylidene fluoride compositions
Inventor: NETSCH RAYMOND
IPC: C08L27/18
Filed: 1969-09-23
Abstract: 1,255,081. Polyvinylidene fluoride compositions. PENNWALT CORP. 23 Sept., 1969 [25 Sept., 1968], No. 46846/69, Heading C3P. A fluoropolymer composition comprises a thermoplastic vinylidene fluoride polymer having dispersed therein a particulate thermoplastic tetrafluoroethylene polymer, the tetrafluoroethylene polymer being present in an amount of from 0-5 to 2% by weight, based on the total weight of the two polymers, and having a particle diameter in the range of from 0À1 micron to 20 microns. The vinylidene fluoride and tetrafluoroethylene polymers may be the homopolymers or copolymers containing at least 90 mole per cent of the monomer and up to 10 mole per cent of comonomers, all the polymers being solid at room temperature and of high molecular weight. In the examples the compositions are prepared by mixing latices of the polymers, shear coagulating and drying; mixing polymer powders and mixing the polymer powders in a slurry of methanol and evaporating.
Patent GB-1349399-A (GB)
Title: Process for repairing iron chills for steelmaking which are damaged  by longitudinal cracks
IPC: B22D7/06
Filed: 1971-10-11
Abstract: 1349399 Ingot moulds E EVERTZ 11 Oct 1971 [24 Oct 1970] 47156/71 Heading B3F Ingot moulds having longitudinal cracks are repaired by covering cracked areas with several spiral windings of a metal coil. The first winding of the coil may be riveted to the ingot mould as may be the last. Alternatively, the last winding may be welded to the previous winding. A shackle can be provided spanning the coils to prevent them from falling away from one another. If the coils permanently deform clamping wedges can be driven between them.
Patent GB-1434977-A (GB)
Title: Method of manufacturing an optical waveguide
IPC: G02B6/02
Filed: 1973-10-11
Abstract: 1434977 Optical waveguides SUMITOMO ELECTRIC INDUSTRIES Ltd 11 Oct 1973 [13 Oct 1972 (2)] 47427/73 Heading C1M [Also in Division G2] An optical waveguide is produced by drawing a rod or tube into a fibre, the rod or tube being of fused silica and having a three layer coating the inner and outer layers consisting of pure fused silica and the intermediate layer of silica doped so that it has a higher refractive index than pure silica. In one embodiment a rod is provided with the three layers 5, 6, 7 and is inserted into a tube 8 having a fused silica internal coating 9, the composite rod and tube then being drawn into a fibre. Alternatively the three layers are deposited on the interior of the tube. The intermediate layer dopant is preferably selected from the oxides of tantalum, tin, niobium, zirconium, aluminium, ytterbium, lanthanum, caesium, rubidium and germanium.
Patent GB-1419182-A (GB)
Title: Process for preparing 2-substituted-2-cyclopenten-1-ones
IPC: A61P31/04
Filed: 1973-01-24
Abstract: 1419182 Methyl 5-oxo-1-cyclopentene-1- heptanoate; organomagnesium compounds WISCONSIN ALUMNI RESEARCH FOUNDATION 24 Jan 1973 [26 Jan 1972 22 May 1972 29 Sept 1972] 47538/74 Divided out of 1419181 Headings C2C and C2J Methyl 5 - oxo - 1 - cyclopentene - 1 - heptanoate is prepared by reacting 2-methoxy-2- cyclopenten - 1 - one with 7 - trans - octenylmagnesium iodide, dehydrating the resulting 2 - hydroxy - 2 - (trans - 7 - octenyl)cyolopentanone, epodizing the 2 - (trans - 7 - octenyl)- 2 - cyclopenten - 1 - one thus obtained cleaving the resulting 2 - (7,8 - epoxyoctyl) - 2 - cyclopenten - 1 - one to give 2 - (6 - formylhexyl)- 2 - cyclopenten - 1 - one, oxidizing the aldehyde to give 5 - oxo - 1 - cyclopentene - 1 - heptanoic acid and esterifying the acid with diazomethane. 8 - Iodo - trans - 1 - octene is obtained by iodination and hydrogenation of 1,7-octadiene. 7 - Trans - octenylmagnesium iodide is prepared by reacting 8-iodo-trans-1-octene in tetrahydrofuran with magnesium.
Patent GB-1133001-A (GB)
Title: Improvements in or relating to variable frequency generators
IPC: G01N25/14
Filed: 1965-11-11
Abstract: 1,133,001. Resistance measurement; electrical measuring systems. CHARBONNAGES DE FRANCE. Nov. 11, 1965 [Nov. 12, 1964], No. 47954/65. Headings G1N and G1U. [Also in Division H3j The unbalance output of a resistance measuring bridge is used to control the output frequency of a variable frequency generator. A high-gain aperiodic amplifier A has a first feedback loop through resistor R1 injecting a current in phase with the output voltage of the amplifier, a second feedback loop including the measuring bridge P and capacitor C injecting a current in phase quadrature with the output voltage, a third feedback circuit through R 2  injecting a current in phase opposition to the current from the second feedback loop, and an input attenuator R for the amplifier. The third feedback path includes a selective double-tee frequency bridge TT tuned to the frequency of the generator when the bridge P is balanced. The current Ip supplied from the bridge to the amplifier A is in phase quadrature with the amplifier output because of capacitor C and of a magnitude depending on the frequency of operation, the amplifier output voltage and the degree of bridge unbalance. The current It supplied through the double tee bridge, is 180 degrees out of phase with Ip, and depends on the amplifier output voltage and the difference between operating frequency and the tuned frequency of the double tee bridge. The system achieves operating equilibrium at such a frequency that I p =I t , and it is shown in the Specification that in these circumstances this frequency is related to the unbalance of the bridge. The variable attenuator, which incorporates a transistor T4 whose emitter collector resistance is controlled by the amplifier output when above a threshold determined by diodes D1, D2 forms a variable shunt which adjusts the overall gain of the system to avoid saturation and consequent distortion by the amplifier stages. Resistor 4 in bridge P may consist of a heated platinum filament the resistance of which is indicative of the concentration of methane in the atmosphere surrounding the resistor. The resistor is heated by D. C. from a source S. The bridge may incorporate complex impedances rather than resistances, but the capacitor C must then be replaced by a correctly designed coupling circuit.
Patent GB-1472434-A (GB)
IPC: G11C11/404
Filed: 1974-11-06
Abstract: 1472434 Matrix memories WESTERN ELECTRIC CO Inc 6 Nov 1974 [9 Nov 1973] 48102/74 Heading G4C A matrix memory of intersecting row and column conductors comprises at each intersection a single bipolar transistor, the base and one of the collector or emitter being selectively biased so that there is or is not forward biasing to store across a capacitor associated with the other of the emitter or collector one of two voltage levels representing binary data. As described the cells are integrated circuits NPN junction transistors with their bases connected to the word lines and their emitters connected to the column lines. To read out information stored in a cell the associated row (word) and column (digit) lines are held at 5 volts. If the cell stores a "0", current flows from the column line 20 through the emitter to operate the transistor in inverse mode and so changes its capacitance, the current flow through the column being detected by current detectors 26. If a "1" is stored no current flow occurs. If the column lines are alternatively allowed to float at 5 v., a stored "0" will result in a drop in the column line potential, the detectors 26 in this case being voltage detectors,
Patent GB-1121069-A (GB)
Title: Improvements in or relating to the manufacture of mouthpiece cigarettes
IPC: A24C5/47
Filed: 1964-11-26
Abstract: 1,121,069. Cigarette making machines. MOLINS ORGANISATION Ltd. and T. ROWLANDS. 12 Nov., 1965 [26 Nov., 1964], No. 48134/64. Heading A2C. In apparatus for making mouthpiece cigarettes in which a spaced group consisting of two cigarette lengths C1 and C2 and an interporsed stub S travelling axially are arrested and caused to move in a direction transversely to their axes, means are provided to move the stub S positively against the adjoining face of the trailing cigarette C2, to push back an tobacco protruding from the face as a result of the axial arrest of the group. The group, travelling on a conveyer 1 in the direction of the arrow are taken up by a drum (not shown) having guides 6, 7 and 8 mounted on an extension 9. The guides are such that axial movement of the cigarettes is restrained. In the region traversed by the stub S a narrow elongated element or guide rail 12 is disposed obliquely and arranged to press against the surface of the stub so that as the stub is moved transversely it is urged lengthwise by the element.
Patent GB-1217029-A (GB)
Title: New derivatives of baicalein
IPC: C07F9/655
Filed: 1968-10-14
Abstract: 1,217,029. Sulphuric and phosphoric acid esters of baicalein and salts. TAKEDA YAKUHIN KOGYO K.K. 14 Oct., 1968 [12 Oct., 1967; 9 Nov., 1967], No. 48530/68. Heading C2C. Novel sulphuric acid and phosphoric acid esters and partial esters of baicalein of formula and salts thereof with alkali and alkaline earth metals, ammonia amines and hydroxy amines are prepared by phosphorylating or sulphating of baicalein which may be in a crude form and optionally followed by salt formation. Pharmaceutical compositions in conventional forms for oral parenteral or rectal administration having anti-allergic action comprise an above novel compound or salt and a carrier therefor.
Patent GB-1046117-A (GB)
Title: Improvements in or relating to evaporative air coolers
Inventor: JEAL WILFRED JOHN
IPC: F24F6/04
Filed: 1963-12-10
Abstract: Apparatus for treating air to be supplied to e.g. a greenhouse comprises a casing with an air inlet and outlet, a vertical layer of porous material welted with water from a louvred trough, and a squirrel-cage form surrounded by a spiral air shoot whereby air is drawn into the casing through the welted porous material and expelled through the outlet.  The trough is V-shaped and is supplied with water by a pump from a reserve in the bottom of the casing.
Patent GB-1484010-A (GB)
Title: Mechanisms for intermittently actuating the discharge valve of a pressurised dispensing container
IPC: B65D83/16
Filed: 1973-10-19
Abstract: 1484010 Actuators for pressurized dispensing containers WELLCOME FOUNDATION Ltd 18 Oct 1974 [19 Oct 1973] 48822/73 Heading F1R In a valve actuating mechanism of the type described in Specification 997833, the cam 15 controlling the actuating lever 17 has a contour comprising a surface 32 which allows rapid descent of the lever 17 while maintaining contact with the lever. The reverse thrust resulting from the descent of the lever 17 is countered by the return lever 16 rising over a lobe 27 on the cam 13 which is also contoured to maintain the lever in contact when descending. The lever 16 rising on the cam 13 stresses the spring when the lever 17 is descending to actuate the valve and is arranged to fall to relieve the spring stress when the lever 17 is being raised to allow the valve to close.
Patent GB-1007330-A (GB)
Title: Bucket or receptacle for concrete
IPC: E04G21/02
Filed: 1962-12-28
Abstract: 1,007,330. Skips made of reinforced plastics WERKSPON N.V. Dec. 28, 1962 [Dec. 30 1961], No. 48892/62. Drawings to Specification. Heading B8H. A skip 1 having a bottom discharge opening closed by flaps 8, 9 operated by a lever 10 is made of synthetic resin, e.g. polyester or epoxy resin, reinforced with glass fibres. Lifting hooks 2 are attached to the skip by strands 3 of glass fibres which fan out as shown. A base 5 provided with hand holds 11 is attached to the skip round a ring 7. The skip is transparent so that the contents may be seen and the top is reinforced by a ring 4.
Patent GB-1430908-A (GB)
Title: Derivatives of cephalosporin
IPC: C07D501/34
Filed: 1974-11-12
Abstract: 1430908 Cephalospirin derivatives RHONEPOULENC SA 12 Nov 1974 [14 Nov 1973 25 April 1974] 48978/74 Heading C2C Novel cephalosporins I (in which one of A and A 1  is O or S and the other is S; R 1  is H, acetoxy, (5-methyl-1,3,4-thiadiazol-2-yl)thio or (1-methyl-1,2,3,4-tetrazol-5- yl)thio; and R 2  is COOH or a salt derivative thereof; or R 1  is pyridinio and R 2  is COO<SP>(-)</SP>) are prepared by acylation of the corresponding 7-amino-cepham derivative or, if R 1  is heterocyclylthio, by reaction of a compound I in which R 1  is acetoxy with 5-methyl-2-thioxo- 1,3,4 - thiadiazoline or 1 - methyl - 5 - thioxo- 1,2,3,4-tetrazoline or if R 1  is pyridinio by reaction of a compound I in which R 1  is acetoxy with pyridine.  Intermediates of Formula II are prepared by saponification of the corresponding methyl or ethyl esters. The said esters in which A is O or S and A 1  is S are prepared by reaction of methyl or ethyl γ-bromoacetoacetate with 2-mercaptoethanol or ethane-dithiol. The said esters in which A is S and A 1  is O are prepared by reaction of methyl or ethyl 3-bromo- 3-formyl-propionate with 2- mercaptoethanol. Pharmaceutical compositions for oral, rectal or parenteral administration as antibacterials, comprise a compound I together with a suitable carrier.
Patent GB-1027746-A (GB)
Title: 17-amino-androstane and -androstene derivatives
Inventor: DAVIS MICHAEL
IPC: C07J43/00
Filed: 1962-12-31
Abstract: The invention comprises compounds of formula <FORM:1027746/C2/1> wherein R1 is an a  or b -hydroxy group and R2 is a hydrogen atom or R1 and R2 together represent an oxygen atom, R3 is a C2- 6 alkyl group, a phenyl (C1- 6 alkyl) group or a C3- 8 cycloalkyl group, and R4 is a hydrogen atom, a C1- 6 alkyl group or a phenyl (C1- 6 alkyl) group, or the group -NR3R4 forms a 5-, 6- or 7-membered heterocyclic ring which may contain an oxygen or additional nitrogen hetero-atom, which latter may be substituted by a C1- 6 alkyl group or a group-COR where R is a C1- 6 alkyl or alkoxy group, and T1, T2 and T3 are hydrogen atoms or T1 and T2 or T2 and T3 form a bond, the remaining T symbols representing a hydrogen atom, acid addition salts and, wherein R4 is other than hydrogen, C1- 6 alkyl quaternary ammonium salts thereof, and their preparation by reductive amination of a compound of formula <FORM:1027746/C2/2> wherein R11 is an a - or b -hydroxy group and R21 is a hydrogen atom, followed if desired by (a) oxidation to a 3-keto group, (b) catalytic hydrogenation of a D 4 or D 5 double bond, or (c) interconversion of the 17-amino group by known methods, for example alkylation or aralkylation.  The compounds of the invention have central nervous system stimulant activity and may be used in pharmaceutical compositions in combination with a carrier, for example in forms suitable for oral or parenteral administration, such as tablets, pills, granules, dispersible powders, syrups, elixirs, solutions, suspensions and ampoules.
Patent GB-1292442-A (GB)
Title: Improvements in and relating to fluidised bed reactors
Inventor: PEDDER KENNETH CHARLES WORTON
IPC: B01J8/44
Filed: 1968-10-18
Abstract: 1292442 Fluidised bed apparatus LAPORTE INDUSTRIES Ltd 9 Oct 1969 [18 Oct 1968] 49500/68 Heading B1F In fluidised bed apparatus, valves 14 are supplied in the gas supply pipes 7, which valves comprise valve members 15 containing bores 16 having a cross-sectional area over at least part of their lengths less than the crosssectional area. of the associated supply pipe, the member 15 being positionable as shown in Fig. 6 for cleaning via ports 20.
Patent GB-1480718-A (GB)
Title: Artificial and natural structures
IPC: E04G23/02
Filed: 1975-12-02
Abstract: 1480718 Filling cracks and voids BALF OUR BEATTY Ltd 2 Dec 1975 [2 Dec 1974] 49517/ 75 Divided out of 1479020 Addition to 1399510 Heading D1P [Also in Division El] In the process of the main patent the stream of hardenable material being drawn through one or more inlets in the fluidpermeable covering into the underlying structure is subjected to fluid hammering, preferably by means of a reciprocating piston 12 working in cooperation with clack valves 14.
Patent GB-1500889-A (GB)
Title: Spinning top board game
IPC: A63F9/16
Filed: 1976-11-26
Abstract: The spinning-top game is composed of a running board (11) and of a spinning top (20) moving on the running board. The running board (11) has a running surface for the spinning top (20), which in use is at the top, is bounded by a raised edge (18), has with respect to a horizontal deployment plane (12) which in use is at the bottom and bounds the running board (11), over the longitudinal extent of the deployment plane from its start end (A) to its target end (B), an inclination which runs transversely with respect to the longitudinal extent, and which has a curved boundary at its target end (B). Located on the inside of the raised edge (18) is a recessed cavity (19) for catching the spinning top. The spinning-top game can be used especially as a game of skittles in which skittles-like figures (21) are placed on the running surface as target objects for the spinning top. <IMAGE>
Patent GB-978691-A (GB)
Title: Apparatus for indicating the position of a member
Inventor: DREW DENIS ARTHUR
IPC: B23Q17/22
Filed: 1963-12-17
Abstract: 978,691. Lathe details. ROLLS-ROYCE Ltd. Dec. 17, 1963, No. 49891/63. Heading B3T. A lathe tool holder 10 is movable in the directions of arrows 11, and a probe 14 is urged into contact with the holder by a spring 12. A lead screw 17 is rotated by an electric motor 16, and co-operates with a non- rotary but axially slidable nut 21. Probe 14 carries a diamond-shaped electrode 15, and nut 21 carries elongated electrodes 24, 25, the ends 26, 27 of which are aligned. A first spark gap electrical circuit for energizing a motor field winding 42 comprises electrode 24, the winding 34 of a transformer 40, the winding 33 of a transformer 32, a lead 46, and the electrode 15. A second spark gap electrical circuit for energizing a motor field winding 45 comprises the electrodes 25, the transformer winding 35, the winding 33, the lead 46 and the electrode 15. The field winding 42 rotates the motor in one direction, and the field winding 45 rotates the motor in the opposite direction. In operation, with the parts in the position of the drawing, current flows in the two spark gap circuits, both of the windings 42, 45 are energized and the motor 16 remains stationary. Assuming the tool holder moves to the left followed by the probe 14 along with the electrode 15, the latter moves away from the electrode 25 thus opening the circuit to the field winding 45, whilst the circuit to the field winding 42 remains closed. The motor 16 drives the lead screw, and the nut 21 is moved to the left, until the electrode 25 is brought adjacent to the electrode 15. Both of the windings 42, 43 are now energized and the motor stops, the extent of movement of the motor, probe, and therefore the tool holder 10 being indicated on an instrument 50, which may be a mechanical counter driven by the motor 16.