baber/WOPTO huggingface dataset:
Patent GB-1046380-A (GB)
Title: New hypocholesteremic compositions
IPC: C07D317/50
Filed: 1965-05-27
Abstract: Novel 3,4 - bis - (31,41 - dimethoxyphenyl) -hex-3-ene is prepared by treating propioveratrone in a benzene-ethanol mixture with aluminium foil and mercuric chloride, treating the resulting pinacol with glucial acetic acid and concentrated sulphuric acid, reducing the resulting pinacolone with sodium borohydride and treating the resulting product with glucial acetic acid and concentrated sulphuric acid. Novel 3,4 - bis - (31,41 -methylenedioxyphenyl)-hex-3-ene is prepared by a similar method from 3,4-methylenedioxypropiophene. Novel 3,4 - bis - (31,41,51 - trimethoxy -phenyl)-n-hexane is prepared by reacting 3,4,5-trimethoxybenzoyl chloride and dimethylamine, treating the resulting N,N-dimethyl-3,4,5-trimethoxybenzamide with ethyl lithium, treating the resulting 3,4,5-trimethoxypropiophenone with hydrazine hydrate, hydrogenating the resulting 3,4,5-trimethoxypropiophenone azine to form 3,31; 4,41; 5,51 - hexamethoxy - a  -azopropylbenzene, and heating this compound under nitrogen.  3,31; 4,41 - Tetramethoxy - stilbene is prepared by treating 3,4-dimethoxyphenylacetonitrile with sodium methoxide and ethyl nitrate to form the sodium salt of a -nitro-(3,4-dimethoxyphenyl)-acetonitrile and treating this compound with aqueous sodium hydroxide.  3,4 - bis - (31 - methoxy - 41 -hydroxyphenyl)-n-hexane is prepared by reacting isoeugenol with benzyl chloride in the presence of potassium hydroxide to form isoeugenol benzyl ether, treating this compound with hydrobromic acid and then iron powder to form 3,4-bis-(31-methoxy - 41 benzyloxy - phenyl) - n - hexane and hydrogenating this compound.ALSO:Hypocholesteremic compositions comprise a compound <FORM:1046380/A5-A6/1> wherein C1 - C2 represents -CH2. CH2-, <FORM:1046380/A5-A6/2> are H, OH, or methoxy, R2 is OH, methoxy, or benzyloxy, or R1 and R2 together form a C1-4 alkylenedioxy radical, and a pharmaceutical carrier.  The compositions may be administered orally or parenterally.
Patent GB-1148867-A (GB)
Title: Sealing bottle-cap
Inventor: BRAUN MORRIS
IPC: B65D41/04
Filed: 1966-05-20
Abstract: 1,148,867. Caps for bottles &c. M. BRAUN. 20 May, 1966, No. 22686/66. Heading B8T. The convex inner surface 16 of the crown of a unitary screw cap 2 is free from projections when undistorted and deforms as shown into sealing contact with a flat bottle lip 30 on tightening down. As described, a serrated edge 10 engaging a similar edge (not shown) on a collar 26 prevents accidental cap loosening. The convexity of the surface 16 may be confined to its periphery, Figs. 5-7 (not shown).
Patent GB-379835-A (GB)
Title: Electric fire
IPC: F24C7/00
Filed: 1931-08-11
Abstract: 379,835. Imitation electric fires. BERRY, H. H., 85, Newman Street, London. Aug. 11, 1931, No. 22721. [Classes 39 (iii) and 126.] An imitation fire designed to fill an ordinary fireplace opening comprises an archform surround 1 which closes the opening and has attached an openfronted " fuel " holder 2 which projects rear - wardly from it into the grate space of the opening. The fire shown comprises also a sham canopy 5, a "trivet" 6, and interchangeable ornamental panels 3, 4 secured to the surround. The holder 2 comprises strips 12 lying against the jambs, side wings 13, and a back 14 the upper portion of which inclines forwardly. The whole of the parts are secured by studs 7, 8 projecting rearwardly from the trivet and canopy. The trivet contains a heating element 19 controlled by switches housed in " hobs " at the ends of the trivet, and having removable covers 18.
Patent GB-734353-A (GB)
Title: Improvements in or relating to jet nozzles for jet propulsion engines
Inventor: REDFERN PETER
IPC: F02K1/11
Filed: 1952-09-10
Abstract: 734,353. Jet propulsion plant. ROLLSROYCE, Ltd. Sept. 10, 1953 [Sept. 10, 1952], No. 22767/52. Class 110 (3). In a jet nozzle for a jet-propulsion engine, of the kind comprising nozzle elements 11, Fig. 2, which are adjustable relative to the outlet end of a jet pipe 10 to vary the effective discharge area of the nozzle, each nozzle element carries a gas-sealing member 20 which, when the elements are moved into a position in which the discharge area is reduced, abuts a peripherally-continuous gas-sealing member 25 encircling the jet pipe near its outlet end and carried with freedom for axial displacement by an axially-extending bellows 23 which encircles the jet pipe and is attached thereto. Each nozzle element 11 is shaped internally as a half-zone of a sphere and pivoted to the jet pipe structure to swing about a diameter of the sphere, as in Specification 598,183. Member 20 comprises a channelsection strip attached by bolts 19 to the inner skin 11b of element 11. Member 25 is a braided heat-resisting metal ring carried by a U-section member 24 welded to one end of the bellows 23. The other end of the bellows 23 is connected as by welding to a flanged ring 22 which is welded to the end ring 21 of the jet pipe. Member 25 may be stitched to member 24 and the bellows 23 by a wire 26. The free end of the bellows 23 is guided during expansion and contraction by a pair of channel-section strips 33 coaxial with and mounted on the jet pipe. The nozzle elements 11 carry stops 27, Fig. 4, which abut when the elements are in the position shown in Figs. 2 and 4. An axially-extending member 30 carried by the inner skin 11b of each nozzle element 11 makes sliding contact with an axially-extending member 29 carried by the outer skins 11a, to provide a seal against leakage of hot gas into the space 14. A braided heatresisting metal sealing strip may be provided between adjacent edges of the two nozzle elements 11. The downstream ends of the nozzle elements 11 are formed to provide an ejector effect whereby the flow of hot gases through the nozzle induces a flow of air through apertures 13 and the space 14 between the inner skin 11b and the inner of the two outer skins 11a. When the nozzle elements 11 are retracted to the position at which the effective discharge area of the nozzle is a maximum, a flange 11c, Figs. 2 and 5, on each element 11 makes sealing contact with a braided heat-resisting metal ring 31 which extends around the jet pipe and is carried by a U-section ring 32 attached to the central skin 10b of the jet pipe. Air then flows from the space between the inner skin 10a and central skin 10b and out through the space between the jet pipe and the inner skin 11b of each nozzle element, thereby protecting the nozzle elements from heating by the jet gases.
Patent GB-940712-A (GB)
Title: Improvements in or relating to penicillins
Inventor: NAYLER JOHN HERBERT CHARLES
IPC: C07D499/60
Filed: 1961-06-23
Abstract: Penicillins of the formula <FORM:0940712/C2/1> and non-toxic salts thereof, wherein R is hydrogen or an alkyl, aryl or aralkyl group are prepared by hydrogenating in the presence of a catalyst a penicillin of the formula or a non-toxic salt thereof, wherein R1 and R2 are the same or different and each is an aryl, alkoxycarbonyl, aryloxycarbonyl or aralkoxycarbonyl group or R1 is hydrogen.  The catalyst is preferably palladium supported on an alkaline earth metal carbonate.  Examples describe the production of hydroxymethylpenicillin from dibenzyloxycarbonylamino - oxymethyl-penicillin and from benzamido-oxymethyl-penicillin, of a -hydroxypentylpenicillin from a -benzamidooxypentylpenicillin, and of a -hydroxybenzylpenicillin from a -benzamido-oxybenzylpenicillin. Specification 940,711 is referred to.
Patent GB-345189-A (GB)
Title: Improvements in or relating to photo-electric cells
IPC: H01J40/10
Filed: 1930-07-29
Abstract: 345,189. Photo - electric cells. PRESSLER, M. A. E., 98, Elisenstrasse, Leipsic, Germany. July 29, 1930, No. 22841. Convention date, July 29, 1929. [Class 39 (i).] A photo-electric cell contains xenon, krypton, or a mixture of these gases. A small quantity of hydrogen may be added.
Patent GB-410653-A (GB)
Title: Guards for power-driven guillotines
IPC: B26D7/22
Filed: 1933-08-17
Abstract: 410,653. Machinery guards. WALKER, W. F., 80, London Road, Clapton, London.. Aug. 17, 1933, No. 23019. [Class 80 (iv).] In a power-driven guillotine in which a spring-controlled guard 1 hanging from pivots 3 is pushed forward on descent of the knifeholder 9 by the engagement of a cam 11 carried by the knife-holder with a roller 8 mounted on a cross-bar 7 on the guard frame, the roller 8 is extended to allow of sideways as well as downwards movement of the knife without disengagement of the cam therefrom. The cam 11 may be vertically adjustable on the knife-holder.
Patent GB-354541-A (GB)
Title: Improvements in the frames for vertical reciprocating engines
IPC: F02F7/00
Filed: 1930-07-31
Abstract: 354,541. Engine frames; crossheads. SALGE, W., 35, Budapesterstrasse, Berlin. July 31, 1930, No. 23092. [Classes 122 (i) and 122 (iii).] The bedplates and standards of vertical, reciprocating engines consist of built-up ironwork structure made of rolled-iron members and flat plates and the crank shaft bearings and the crosshead guides are made of separate parts. The crosshead embraces the guide as a closed strap, and is made in box form from separate plates. The engine frame comprises front and rear box structures a joined by transverse boxes b. These are formed of rolled sections and plates in the manner of girders. The main bearings c are fixed in the boxes b. Box-like standards e are fixed on boxes a, and are closed by plates f which carry the cylinders. The boxes are braced by bars g. The crosshead guides comcomprise boxes h mounted between brackets i, k. The two-part crosshead m embraces the box h, Fig. 8.
Patent GB-795954-A (GB)
Title: A method of central remote control
IPC: H02J13/00
Filed: 1954-08-09
Abstract: 795,954. Electric selective signalling systems. LANDIS & GYR AKT.-GES. Aug. 9, 1954 [Aug. 10, 1953], No. 23108/54. Class 40 (1). In a central remote control installation of the type having means for superimposing on a power distribution network a programme of repeated double control-orders, such as " On " and " Off " switching orders consisting of audiofrequency impulses, means are provided whereby the normal double-signal programme sequence is varied at least at one point as compared with its normal course, for transmitting an emergency or other special order at any time during the course of a normal control programme. Diagram A represents a normal impulse diagram of a central remote control installation, in which after a starting impulse i at time O, impulses representing the double orders " On "-" Off occur. References 1e, la, indicate the first " On " and the first " Off " position respectively, 2e, 2a, the second, and so on, the position where a control impulse is sent to effect the corresponding operation being indicated by shading and those where no control impulse is sent being shown without shading. If a change occurs in the control programme all the orders including those unchanged are repeated, the arrangement being such that not more than two successive positions in the cycle can carry no control impulse, e.g. 2a, 3e. Diagram B shows the arrangement for giving an alarm order by suppressing the impulses for four successive pulse positions 4a, 5e, 5a, 6e, this suppression of four successive orders being detected by a testing relay at the receiver. Since a voltage failure could cause the suppression of control impulses, coded special impulses le to 2a may precede the impulse suppression 4e to 5a. Diagram C, such impulses acting as switching off orders for positions 1 and 2. Different coded combinations of these impulses may be used to distinguish between different special orders.
Patent GB-1520181-A (GB)
Title: Building element for tunnel linings
IPC: E21D11/08
Filed: 1976-06-04
Abstract: 1520181 Tunnel linings L I D LLEWELLYN 4 June 1976 23129/76 Heading E1F A building element, for use in forming annular tunnel linings, comprises a segment 1 having angularly spaced end faces 2, 3, lying e.g. in radial planes of the lining to be formed, radially spaced inner and outer faces 5, 4, and axially spaced front and rear faces 6, 7, the segment 1 including at a position intermediate its end faces 2, 3 a cylindrical joint member 10 whose axis extends in the front to rear direction of the segment and of only slightly less diameter than the spacing of the inner and outer faces 5, 4. The joint member 10 has its cylindrical outer face spaced from the inner and outer faces 5, 4 of the segment 1 and is of greater compression strength than the segment 1. The segment 1 is preferably provided with recesses 11, 12 at the faces 4, 5 adjacent the outer face of the joint member 10. When the assembled lining deforms, the two halves 1a, 1b of the segment 1 move about the joint member 10 acting as journal, but wire mesh reinforcement 13, 14 is preferably included to increase the strength of the element for handling and erection. The joint member 10 may be of concrete or it may be a metal pipe 10a which can be filled with concrete or left empty. A coating layer 9 of e.g. bitumen emulsion or polyvinylacetate emulsion may be provided between the joint member 10 and the segment 1, and the joint member 10 may be axially offset relative to the faces 6, 7 to allow keying of neighbouring segments 1. In making the elements, the pipe 10a may be cast in the segment, or a steel cylinder may be cast in the segment and removed while the concrete is still 'green', the coating 9 being applied and further concrete of greater compression strength being then cast in the passage. In forming a tunnel lining, abutting end faces 2, 3 of neighbouring segments 1 are provided with a layer of quick-setting epoxy resin adhesive, and filler is applied between the ring of segments 1 and the rock face.
Patent GB-468019-A (GB)
Title: Improvements in electro-filters
IPC: B03C3/84
Filed: 1936-08-25
Abstract: 468,019. Electrical precipitation apparatus. MEYERHOFER, A., F., and MEYERHOFER, E. A., (trading as MEYERHOFER & CO.). Aug. 25, 1936, No. 23356. Convention date, Dec. 21, 1935. [Class 39 (i)] Electrofilters for removing dust from gases where it is necessary to maintain the temperature of the gases between predetermined limits, such as roasting gases in the sulphuric acid industry, comprise a casing the inner wall a of which is of metal of high heat conductivity surrounded by a heat-insulating covering b. Preferably the lining a is made of a metal having a high resistance to the action of oxygen, such as aluminium or a heat resisting ferrous alloy. The heat insulating covering may be made of kieselguhr, basic magnesium carbonate, slags or mineral wool. In the construction of apparatus described, a series of concentric collecting electrodes d, with intermediate discharge electrodes are used ; and. the interior may be divided into sector-shaped compartments by one or more radial partitions e, which may extend through the whole apparatus or may be in the form of strips.
Patent GB-1276401-A (GB)
Title: Band width controller for controlling the band width of a moving band of textile material
IPC: G05D5/06
Filed: 1970-05-14
Abstract: 1276401 Automatic width control TURBO MACHINE CO 14 May 1970 [23 June 1969] 23362/70 Heading G3R [Also in Division B8 and D1] A continuous band of material 26, e.g. of filamentary tow, passes over a pivoted control frame 102 arranged to keep the width of the band constant, the frame comprising arms 56, 58 which present respectively a concave surface and a convex surface to the face of the band. Edge sensors 110, 112 monitor the band 26 and in response to deviations from a desired width, supply control signals to a pneumatic cylinder 80 which operates to pivot the frame 102 to effect the required correction. As shown, the band 26 is drawn first across the narrowing concave control arm 56 and width control is effected by the operation of the convex control arm 58 which is brought into contact with the face of the band 26 as required, the pair of feelers 110, 112 being arranged to contact a bar 116 when the band is too narrow whereby a solenoid actuated valve is energized to operate the pneumatic positioning cylinder 80. A second set of feelers may be provided to set an outer limit to the width of the band.
Patent GB-499579-A (GB)
Title: Metal vapour converters
IPC: H01J13/16
Filed: 1938-08-08
Abstract: 499,579. Metal-vapour converters. SIEMENS - SCHUCKERTWERKE AKT. - GES. Aug. 8. 1938, No. 23374. Convention date, Aug. 7, 1937. [Class 39 (i)] The gap separating the rear of the anode 1 from the anode shield 3 is bounded by spherical surfaces, the centres of curvature of which coincide substantially with the centre of oscillation of the anode and the shield. The shield is supported resiliently from the anode insulator 4, and a graphite member, fixed to the shield, may form one of the surfaces.
Patent GB-1522602-A (GB)
Title: Power collection system
IPC: B60L5/38
Filed: 1975-08-07
Abstract: 1522602 Current collectors HAWKER SIDDELEY DYNAMICS Ltd 7 Aug 1975 [28 May 1974] 23577/74 Heading B7L A power collection system for an electric transport system comprises a plurality of arms 4<SP>1</SP>-4<SP>111</SP> carrying collector shoes 2<SP>1</SP>-2<SP>111</SP> urged into engagement with conductor rails 3<SP>1</SP>-3<SP>111</SP>, the arms being movable in a plane perpendicular to the rails to allow relative movement between the rails and vehicle or to allow variations in the rail spacings without displacing the shoes from the rails. The rails are spaced vertically or horizontally and are provided with V-shaped extension plates for guiding the collector shoes into engagement with the rails at the start of a run. The vehicle may be provided with pairs of arms 4<SP>1</SP>, 11<SP>1</SP>; 4<SP>11</SP>, 11<SP>11</SP>; and 4<SP>111</SP>, 11<SP>111</SP> supported by carriers 13<SP>1</SP>, 13<SP>11</SP> and 13<SP>111</SP>, respectively. Each carrier is mounted on a central support 8 by a parallel linkage arrangement whereby the arms may be maintained in a horizontal position. In addition, the arrangement of the arms in pairs ensures that movement of one arm aligns the other arm of the pair with its corresponding conductor rail to allow smooth transfer between the sets of rails 10<SP>1</SP>-10<SP>111</SP> and 3<SP>1</SP>-3<SP>111</SP> at a branch point. In another arrangement Fig. 7 (not shown) the two sets of arms 4<SP>1</SP>-4<SP>111</SP> and 11<SP>1</SP>-11<SP>111</SP> are mounted on separate, spaced supports and are rigidly connected to transfer vertical movements between the corresponding pairs of arms. The two sets may be rigidly interconnected whereby all six arms move in unison. In another embodiment, the system comprises two live conductor rails and a third rail co-operating with a dummy collector shoe used to align two live collector shoes.
Patent GB-745574-A (GB)
Title: Improvements in or relating to high frequency thermionic valve generator systems
IPC: H03B5/10
Filed: 1953-08-26
Abstract: 745,574. Valve generating and amplifying Circuits. TELEFUNKEN GES., [formerly TELEFUNKEN GES. FUER DRAHTLOSE TELEGRAPHIE]. Aug. 26, 1953 [Oct. 9, 1952], No. 23585/53. Class 40 (6). Maximum utilization of a high-frequency valve generator system is obtained by making the waveform of the grid voltage drive such that during periods. in which anode current does not flow the negative grid voltage does not appreciably exceed that necessary to cause anode current cut-off. In an arrangement in which a valve 1, Fig. 2, is back-coupled via tuned circuit 3 and coupling coil 7 to be selfoscillatory, the grid drive is reduced when the valve 1 is cut off by adding a second harmonic component in appropriate phase. For this purpose a frequency-doubler 2 is driven from a tap on the coil 7 and feeds a circuit 6 tuned to second harmonic frequency, part of which is connected in the cathode circuit of the valve 1. Maximum utilization may further be obtained by restricting the anode current flow to periods when the anode voltage is low. In a selfoscillatory circuit of this type, a valve 8, Fig. 3, is back-coupled via a diode 13, an amplifier 9 and an impulse transformer 14. The diode 8 is biased from a source 15 so as to be non- conductive whenever the anode potential of the valve 8 rises above a predetermined value; the back-coupling is then removed and a fixed bias on the valve 8 renders it non-conductive. In a further arrangement, the anode potential is kept at its minimum value for as long as possible during the conductive part of the cycle. To this end the anode circuit of the generator valve 16, Fig. 6 includes, in addition to the output circuit 19, a further circuit 22 tuned to the third harmonic frequency and so adjusted that the voltage waveform at the anode of the valve 16 is approximately rectangular. The valve 16 is driven via an impulse transformer 25 from an amplifier 17 which is preceded by a valve 18. The valve 18 converts the driving waveform to a rectangular shape, the pulse width being adjusted by means of resistors 23, 24. The arrangement may be made selfoscillatory by back-coupling the output circuit 19 to the grid of the valve 18.
Patent GB-1261257-A (GB)
Title: A head for the production of spherical metal beads or balls
Inventor: SCHAEFER HERBERT
IPC: B22F9/08
Filed: 1969-05-08
Abstract: 1,261,257. Spray producers. HALBLEITERWERK FRANKFURT (ODER) VEB. 8 May, 1969, No. 23601/69. Heading B2F. [Also in Divisions C7 and Gl] The head of molten metal in the chamber 1, Fig. 1, of a granulating apparatus is controlled by the provision of two bores 8 and 9, and a supply through pipe 12 of hydrogen under pressure such that when the liquid level descends below the collar 10 pressurized hydrogen will enter the reservoir 2 through bore 9 and displace sufficient molten metal through bore 8 to restore the head. Molten metal slowly descends through a narrow nozzle 14 (50-100 Ám) and a broad nozzle 15 (100- 1000Ám) into a bath of silicon oil. Granulation takes place at the mouthpiece of the broad nozzle and is controlled by electric pulses transmitted from an electrode 16.
Patent GB-1134477-A (GB)
Title: Pulse distortion measuring equipment
IPC: H04L12/26
Filed: 1967-05-22
Abstract: 1,134,477. Data transmission systems; monostable circuits. ATLANTIC RESEARCH CORP. 22 May, 1967 [17 June, 1966], No. 23617/67. Headings H4P and H3T. A circuit for indicating pulses having a distortion greater than a preset value comprises a monostable unit 48, Fig. 1, triggered by each transition in the received Start-Stop signal and by a pulse occurring at the theoretical centre of each bit. The transitions are derived by means of differentiators 22, 24 and inverter 18. Bistable 32 is set by the Start bit and triggers unit 34 which inhibits gate 36 for the duration of one character, so preventing the bi-stable from being reset. The Start bit also starts a pulse generator 42 which provides pulses at twice the bit rate. Bi-stable 44 therefore gives pulses at bit rate, and gated differentiator 38 gives bit-rate pulses which occur at the centre of the bit intervals. Monostable 48, described below, is unstable for only a brief period in each bit. During this period a capacitor in unit 52 charges. The capacitor slowly discharges in the stable period of the monostable. If the capacitor has not fully discharged when next the monostable is triggered, a pulse is delivered to the output 54. A pulse is delivered only if the triggerings are too close together, i.e. if the distortion in the received Start-Stop signal is excessive. The degree of distortion required to cause a pulse is varied by adjusting the discharge rate of the capacitor. The monostable circuit 48, Fig. 3, has transistors 100, 102, and an emitter follower. In the quiescent state, with 102 on and 100 off, capacitor 104 is charged. A positive pulse on line 46 triggers the monostable circuit, turning 102 off and 100 on. Capacitor 104 now discharges via resistor 105. When it has discharged sufficiently to render 102 conducting again the circuit returns to its stable state.