baber/WOPTO huggingface dataset:
Patent GB-894605-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
IPC: C07J5/00
Filed: 1959-09-07
Abstract: The invention comprises a compound having the formula <FORM:0894605/IV (b)/1> wherein X1 is chlorine, fluorine or hydrogen and R2 is a b -hydroxy group or a keto group and a process for the preparation thereof by reacting the corresponding 21-iodo compound with a reducing agent, e.g. sodium thiosulphate, and then, if desired, oxidising to produce the 11-keto derivative, e.g. with chromic anhydride.  Alternatively, a 2a -fluoro-6a -methyl-11b ,17a -dihydroxy-4-pregnene-3,20 dione is dehydrated to produce the corresponding 4,9(11)-pregnadiene said pregnadiene is treated with hypochlorous acid to obtain the 9a -chloro compound, said 9a -chloro compound is treated with a base to obtain the 9b ,11b -epoxy compound which latter compound is treated with HF to obtain 2a ,9a -difluoro - 6a  - methyl - 17a  - hydroxy - 4 - preg - nene-3,11,20-trione.ALSO:Anti - inflammatory compositions comprise compounds having the formula <FORM:0894605/VI/1> wherein X1 is chlorine, fluorine or hydrogen and R2 is a b -hydroxy group or a keto group with coacting antibiotics e.g. neomycin sulphate, novobiocin, bacitracin, circulin, polymyxin B sulphate, gramicidin, streptomycin sulphate, dihydrostreptomycin sulphate, oxytetracycline, chlortetracycline, tetracycline, and chloramphenicol, or the sulphonamides and a pharmaceutical carrier.  They are employed orally, parenterally or topically as tablets, ointments, lotions, jellies, creams, suppositories or aqueous suspensions.
Patent GB-156078-A (GB)
Title: Improvements in the head-lights of automobiles and the like
IPC: F21V19/00
Filed: 1920-10-21
Abstract: 156,078. Dick, E. Dec. 29, 1919, [Convention date]. Electric-lamp lanterns.-In a motor-car headlight &c. a cylindrical piece 5 carrying an electric lamp bulb 1 is inserted from the rear into a guide cylinder 8 and is prevented from rotating by a pin 10 engaging a groove in the cylinder 8, a collar 11 limiting the inward movement of the piece 5. Balls 16 are forced by leaf springs 17 into slight recesses in the piece 5. and a bolt 18 rotatably mounted in the guide cylinder 8 engages a slot 19 in the piece 5 and retains it in position. The bolt 18 is operated by a key and is retained in the open or closed positions by leaf springs 21 acting on a squared pin on the axis of the bolt. A disc 4 on the lamp socket is screwed into the piece 5.
Patent GB-1017054-A (GB)
Title: Improvements relating to semi-conductor controllable rectifier devices
Inventor: LANGRIDGE ARTHUR
IPC: H01L29/739
Filed: 1961-08-18
Abstract: 1,017,054. Semi-conductor controlled rectifiers. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. July 3, 1962 [Aug. 18, 1961], No. 29837/61. Heading H1K. A semi-conductor controlled rectifier comprises a wafer 12 of P- type silicon with an N- type layer 11 diffused into one face. A slot is etched through layer 11 to divide it into regions 11A, 11B of unequal area. Emitter electrode 15 is alloyed to region 11B forming an ohmic contact via N-type region 11C, collector electrode 16 is alloyed to region 11A forming a rectifying contact via P-type region 12A, and wafer 12 is mounted on a copper base 14 which forms the gate electrode of the device. The device may be switched on and off by applying suitable bias voltages to gate 14. The width of channel 13 controls the amount of power which can be switched by the device.
Patent GB-413166-A (GB)
Title: Improvements in and relating to controllable gas or vapour filled discharge tubes
IPC: H01J17/56
Filed: 1933-10-27
Abstract: 413,166. Discharge apparatus. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Oct. 27, 1933, No. 29865. Convention date, Oct. 27, 1932. [Classes 39 (i) and 40 (v).] A controllable gas- or vapour-filled discharge tube has an incandescent cathode, an anode, and two grids located one behind the other in the discharge path, the grids being connected to a control circuit which enables them to be switched over between themselves, or in conjunction with the anode, so as to transfer from a continuous to a discontinuous type of control and vice versa. In the example shown, the indirectly-heated cathode (not shown) is surrounded by a heat-conserving shield 1, and two pot-shaped grids 2 and 4 closed at the bottom by covers 3 and 5 which conserve the heat of the discharge and protect the pinch from undesirable radiation. Beyond them is a pot-shaped anode 6 which has no cover, the anode lead being taken through the top of the tube. The heater of the cathode is adapted to work directly from direct mains voltages of at least 110 volts. For discontinuous control, the grids are connected together, or the grid 4 may be connected to the anode, either directly or through resistances. For continuous control, the grid 2 is used as an ignition anode, giving a mixed ion and electron discharge, from which a pure stream of electrons is drawn by the anode 6 and is controlled by the grid 4. The grid 4 may have a smaller mesh than the grid 2.
Patent GB-520245-A (GB)
Title: Improvements in insulated electric conductors
IPC: H01B7/16
Filed: 1938-10-15
Abstract: 520,245. Electric conductors. BRITISH INSULATED CABLES, Ltd., BRISLEE, F. J., BANNISTER, L. C., MACFARLANE, L., GOULD, M. L. B., and SPENCE, L. R. B. Oct. 15, 1938, No. 29912. Drawings to Specification. [Class 36] An insulated conductor is formed by assembling concentrically a copper rod, one or more glass tubes and an outer tubular copper sheath, and elongating the assembly by drawing or rolling down so as to produce a compact powdered insulation between the rod and the sheath. Before drawing, the assembly may be heated to anneal the copper, say, to between 450 and 650‹ C., and then chilled rapidly to crack the glass ; previously, the internal spaces should be filled with inert gas, e.g., CO or N, and the annealing should be carried out in an inert atmosphere. Multi-conductor cables may be similarly produced ; each conductor may be enclosed in one or more glass tubes such that when assembled the set of tubes fills the space within the sheath, or circular tubes may be used and the spaces between them filled with rods or cords of glass wool or fibre.
Patent GB-446955-A (GB)
Title: Improvements in packings for stuffing boxes
IPC: F16J15/20
Filed: 1935-10-30
Abstract: 446,955. Stuffing - box packing. DAVIES, W., 1592, Oak Avenue, Evanston, Illinois, U.S.A. Oct. 30, 1935, No. 29959. [Class 122 (v)] A stuffing-box packing comprises a split, cup-leather washer 1 housed between a split packing, bearing-ring 2 and a spreader-ring 3 of substantially larger diameter than the rod 6. The ring 1 is housed between horizontal flat surfaces and inclined opposed surfaces on the rings 2, 3. The leather sealing- ring engages the rod by a narrow annular ring and is pressed out by pressure-fluid in the box space 4. The leather ring 1 is impregnated with wax and made from packing of U -formation which is helically wound on a mandrel of less diameter than required in lengths sufficient for several turns, and is allowed to set and harden. The rings 2, 3 are preferably made of a plurality of superposed layers of cotton duck vulcanized together under pressure, moulded or laminated, and sliced to shape. The ring 2 has a bevelled or lapped joint; the ring 3, a butt joint. A modification shows a compound formation wherein the lower ring 1 is of V-form.
Patent GB-1263378-A (GB)
Title: Voltage limiting circuits
Inventor: MOSES ADRIAN J
IPC: H03G11/00
Filed: 1969-06-13
Abstract: 1,263,378. Amplitude limiters. HONEYWELL Inc. 13 June, 1969, No. 29989/69. Heading H3T. An amplitude limiter comprises a capacitor 94 connected across a signal path in series with a unidirectionally conductive reference voltage circuit 118, 120 and means 102 operated in synchronism with the signal to by-pass the circuit. During negative half cycles of the signal applied at 72 transistor 102 is conducting in the inverse mode and capacitor is charged by the signal. During positive half-cycles the transistor is non-conducting and if the sum of the signal and the voltage across the capacitor rises above the reference voltage applied at 120 the capacitor draws charging current and further rise is prevented. For large signal amplitudes the negative signal excursion is limited to zero volts but for intermediate values it is reduced by an amount which depends upon the signal amplitude (Figs. 3c and 3b, not shown, respectively). A similar circuit 90-110 acts for signals of the other phase sense. Another similar circuit (Fig. 2, not shown) replaces the reference voltage transistors 104, 118 by a single transistor (55) having its emitter and collector connected respectively to the points corresponding to 96 and 92 and its base connected to a reference voltage including a diode (59) and a resistor (61) which provide temperature compensation. Opposite conductivity type transistors may be used if the phase sense of the switching wave is measured and field effect transistors may replace junction types.
Patent GB-300780-A (GB)
Abstract: 300,780. Whatton, E. H. Nov. 7, 1927. Grounding aerials.-An earthing switch for wireless aerials and like purposes is arranged to be located outside a building and to be operated from the inside through a flexible cable, this cable also serving to connect the aerial electrically to the set when the connection to earth has been broken. As shown in Fig. 1 the external switch comprises a knife blade 7 pivoted in a clip contact 6 which is connected to the aerial 1. a flexible Bowden wire 11 being connected to the blade and adapted to pivot the blade against the action of a spring 9 to engage a fixed clip 8 connected to earth. The wire 11 is operated by a sliding bolt 13, and when the lateral projection 13a of the bolt is moved from the recess 14b to the recess 14a to break the aerial to earth connection, the upper end of the bolt engages a contact clip 18 connected by a lead 17 to the aerial terminal of the set, current thus passing from the aerial by way of the flexible operating cable to the set. In a modified form (Fig. 2, not shown) the earthing switch is in the form of a rotatable spring-controlled drum operated by the usual Bowden wire lever on the periphery of which the end of the operating cable is so arranged that it engages the fixed aerial contact when a segmental contact strip has been moved to break the connection between the aerial and earth contacts.
Patent GB-483972-A (GB)
Title: Improvements in or relating to multi-lever electric inter-locking mechanisms
IPC: B61L19/14
Filed: 1937-11-03
Abstract: 483,972. Electric interlocking frames for railway signalling. VEREINIGTE EISENBAHN-SIGNALWERKE GES. Nov. 3, 1937, No. 30128. Convention date, Nov. 17, 1936. [Class 105] In an electric interlocking frame the control levers or buttons actuate shafts provided with both power and interlocking contacts and such shafts arc arranged vertically in pairs below the control table. As shown, the buttons 1, 2 actuate the vertical pair of shafts 11, 12 through rodding 19 provided with universal joints 17, 18. Flexible rodding may instead be used or the buttons may be provided on the shafts themselves or on auxiliary shafts linked to the main shafts. The power and interlock contacts are denoted at 21, 31. The several pairs of shafts may be arranged in separate columns with inspection spaces A therebetween.
Patent GB-686630-A (GB)
Title: Synthesis of 1-benzyl 5,6,7,8-tetrahydroisoquinoline-(3)
IPC: A61K31/00
Filed: 1950-12-12
Abstract: The invention comprises the compound 1 - benzyl - 5,6,7,8 - tetrahydroisoquinolone - (3), which is useful as an intermediate in the production of morphine-like therapeutic compounds.  It is prepared by condensing a phenacetyl halide with cyclohexenyl-2-acetonitrile in an organic solvent medium in the presence of a Friedel-Crafts catalyst, to produce 1-(phenacetyl)-cyclohexenyl-2-acetonitrile, and heating this product with phosphoric acid to cause intermolecular rearrangement and formation of the 1-benzyl-5,6,7,8-tetrahydroisoquinolone-(3).  An example describes the performance of the process with an aluminium chloride catalyst and carbon disulphide as the solvent.
Patent GB-1307586-A (GB)
Title: Synchronous motors
IPC: H02K19/12
Filed: 1970-06-23
Abstract: 1307586 Synchronous motors; control of AC motors CANADIAN GENERAL ELECTRIC CO Ltd 23 June 1970 [17 July 1969] 30418/70 Headings H2A and H2J  In a synchronous motor B, Fig. 1, comprising a stator having on a core an armature winding 18 producing a synchronously rotating magnetic field when energized with polyphase A.C., a rotor having on a field core a main field winding 19 and displaced therefrom an auxiliary field winding 20 forming a secondary winding for the armature winding the two field windings when D.C. energized producing respective displaced steady state magnetic fields of alternate N and S poles spaced around the core, means, e.g. a contactor, connects the auxiliary field winding 20 (69 in Fig. 4) to resistors 80 for motor starting or at least portions of the winding to a D.C. source for synchronous motor operation, and means, e.g. a resistor 27, varies the relative direct currents fed to the main field winding and the portions of the auxiliary field winding. By this contactor and resistors induction motor starting is applied to the known drive of Fig. 1 wherein two or more motors A, B driving a common load, e.g. an ore grinding mill, may be adjusted as to the relative amounts of the load that they share by variation of the auxiliary field winding energizing currents in one or both motors which variation adjusts the resultant field axis 26 of the combined main and auxiliary field winding axes 23, 24 and thence the point at which the rotor locks into synchronism; the shares may be measured by a sensor 21, e.g. a wattmeter or an ammeter. As shown in Fig. 2 the main field winding, here referenced 35, is on salient pole bodies whose heads 37 receive the wave-wound two-layer auxiliary winding 45 in axial slots 38 ... 43. Current collectors 70 ... 73, Fig. 4, e.g. slip rings and brushes connect the auxiliary field winding 69 to the contactor whose contacts 74 ... 76 connect all three winding phases 81 ... 83 to the variable resistor 80 for wound rotor induction motor starting and whose contacts 77 ... 79 connect two phases 81, 82 to the source, and short circuit the third phase 83 to act as a stabilizing winding during synchronous operation. Figs. 5 and 6 disclose modifications of these circuits.
Patent GB-1193409-A (GB)
Title: A Connecting Device for Mine Support Assemblies
IPC: E21D23/04
Filed: 1968-06-26
Abstract: 1,193,409. Advancing mine roof supports. GEWERKSCHAFT BISENHUTTE WESTFALIA. 26 June, 1968 [21 Oct., 1967], No. 30444/68. Heading E1P. An advancing mine roof support comprises a prop 1 connected to a floor rail 10, 10' by a two-piece clip 3, 4 of which the part 3 has an extended portion forming a floor skid 7 and the part 4 has a coupling in the form of eyes 16 for attachment of the floor rails 10, 10' by bolts 17. The prop is held against movement in the clip by flanges 6, 6' and a tongue disposed) in registering grooves in the members 1, 4, see Figs. 2 and 3 (not shown). In a modification the prop has a single flange located in grooves formed in the parts 3, 4, see Fig. 4, (not shown).
Patent GB-1322022-A (GB)
Title: Rupturable liquid-filled containers
IPC: B65D75/26
Filed: 1970-06-23
Abstract: 1322022 Laminates; seaming non-metallic sheet material EASTMAN KODAK CO 23 June 1970 [23 June 1969 8 April 1970] 30461/70 Headings B5K and B5N [Also in Division B8] The wall of a liquid containing sachet com prises a layer 161 of kraft paper, a layer 17<SP>1</SP> of lead or aluminium foil, a layer 19<SP>1</SP> of a liquid resistant polymeric resin, and a layer 21<SP>1</SP> of an adhesive having high and low softening point components. The polymeric resin comprises a vinyl acetate-vinyl chloride copolymer, and during heat-sealing to close the sachet fuses to form a strong seal. The high softening point component of the adhesive comprises cellulose nitrite or an alcohol soluble cellulose acetate butyrate, whilst the low softening point component comprises a styrene-methyl methacrylate copolymer, a toluene soluble cellulose acetate butyrate, or a polyvinyl butyral. During heatsealing, this low softening point component fuses to form a rupturable seal. The layer 211 may be coated on to the layer 19<SP>1</SP> or be applied as a sheet. Heat sealing is effected by heated jaws or plates.
Patent GB-244745-A (GB)
Title: Improved means for securing the covers of pneumatic tyres
IPC: B60C15/02
Filed: 1925-12-02
Abstract: 244,745. Pirelli & Co. Dec. 20, 1924, [Convention date]. Tyre attachments to rims. - A single-wing security-bolt is formed with a head B for clamping the tyre bead I, as shown in Fig. 7, the threaded stem C having a slotted end to receive a screwdriver whereby the bolt may be turned into the position shown in dotted lines in Fig. 6 so as to free the tyre edge. The stem is formed with a lug D to engage one or other end of a cam slot in the rim. A washer E fastened on the stem prevents removal of the device, which is locked in its adjusted positions by a nut F.
Patent GB-1381574-A (GB)
Title: Incremental racing game
IPC: A63F9/14
Filed: 1973-06-27
Abstract: 1381574 Race games A E GOLDFARB and E BENKOE 27 June 1973 [21 Feb 1973] 30528/73 Heading A6H A toy race game provides each of two players with a ball 26 within a closed compartment 24 which also includes a flipper 28 for projecting the ball towards a target 30. By hitting the target, a spring mechanism is operated to wind a cord 36 on to a drum (38) Figs. 5 to 8 (not shown) whereby a racing piece 40 connected to the cord is moved in incremental steps towards a finishing line, the incremental movement being achieved by the cooperation of a cam follower, mounted on a lever attached: to the target 30, with a cam slot in the drum (38).
Patent GB-1001690-A (GB)
Title: Improvements in methods of preparing a pressed powder and anti-perspirant composition
Filed: 1963-08-01
Abstract: Particles of aluminium chlorohydrate or aluminium sulphate are coated with a solid which is soluble or dispersable in water at human body temperature by dispersing the particles in a non-aqueous, volatile solvent solution of the coating agent and evaporating off the solvent. Specified coating agents are polyethylene glycols of molecular weight 1000-6000; polypropylene glycols of molecular weight 140-600; metho xy polyethylene glycols of molecular weight 350-750; ethoxylated fatty acids and alcohols containing from 8 to 20 carbon atoms, e.g. polyoxyethylene stearate and polyoxyethylene lauryl \sHalcohol; C8-20 fatty acid esters polyalcohols, e.g. sorbitan monostearate; sorbitan trioleate, glyceryl monostearate, ethylene glycol monolaurate and propylene glycol monostearate; ethoxylated lanolin and lanolin extracts and fractions.ALSO:Pressed powder antiperspirant compositions are prepared from particles, comprising hygroscopic solid antiperspirant particles which have been coated with a solid coating agent (which is soluble or dispersable in water at human body temperatures) by dispersing the particles in a solution of the coating agent in a volatile non-aqueous solvent and evaporating off the solvent from the dispersion.  Specified antiperspirants are aluminium chlorohydrate, sodium aluminium lactate complex, sodium zirconium lactate complex or aluminium sulphate. Specified coating agents include polyethylene and polypropylene glycols, methoxy-polyethylene glycols, ethoxylated fatty acids, fatty acid esters of polyalcohols e.g. sorbitan monostearate, ethoxylated lanolin and lanolin extracts or fractions.  The finished antiperspirants may comprise conventional additional ingredients e.g. a powder base, a binder, a bactericide, a skin-healing agent e.g. aluminium chlorhydroxy allantoinate or aluminium dihydroxy allantoinate, and pigments.
Patent GB-646814-A (GB)
Title: Improvements in and relating to refrigerating systems
IPC: F25B41/06
Filed: 1947-11-20
Abstract: 646,814. Automatic regulation. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 20, 1947, No. 30823. Convention date, Nov. 20, 1946. [Class 38 (iv)] [Also in Groups XIII and XXIX] A rise in the load on the motor 5 of a compression refrigerating system leads to a closing of the expansion valve 24 to reduce the load to normal. The valve is solenoidoperated and has two windings 30, 31, one responsive to current and the other to voltage.
Patent GB-1145385-A (GB)
Title: Reactive azo dyes
Inventor: SCHWEIZER AUGUST
IPC: C09B62/028
Filed: 1966-07-08
Abstract: 1,145,385. Reactive azo dyes. SANDOZ Ltd. 8 July, 1966 [16 July, 1965], No. 30825/66. Heading C4P. The invention comprises compounds of the formula where R is a heterocyclic reactive group which bears at least one mobile chlorine or bromine atom and which may be bound through CO, CH 2  or SO2; X is hydrogen, halogen, alkyl of 1-5 carbon atoms or alkoxy of 1-5 carbon atoms and Y is hydrogen, methyl or alkoxy of 1-5 carbon atoms. The compounds are prepared by reacting 1 mol. of an amine of the formula with 1 mol. of a heterocyclic reactive component which may bear a halomethyl, halocarbonyl or halosulphonyl group, or with 1 mol. of an acylating agent, followed by diazotization and coupling with a compound of the formula followed, if necessary, by cleavage of the acyl group and reaction with 1 mol. of a heterocyclic reactive component which may bear a halomethyl, halocarbonyl or halosulphonyl group.
Patent GB-533803-A (GB)
Title: Improvements in or relating to material for heat or sound insulation
IPC: B23K11/31
Filed: 1939-11-27
Abstract: 533,803. Agglutinated fibrous materials. DELLOYE, R. Nov. 27, 1939, No. 30887. Convention date, Oct. 2. [Class 140] [Also in Groups XXIII and XIII] A material for insulating heat or sound consists of threads of glass cut into short and uniform lengths and agglomerated to form a mixture in which the ratio between the quantity of glass threads and the quantity of air interposed between these threads is uniform throughout the material. The threads may be coated with a binding material, and they may be mixed with threads of other materials, such as asbestos, also cut into short and uniform lengths. The material may be prepared by conveying hanks of the glass thread from a table 1 by .means of a conveyer 2 to a cutter 3. The cut material falls into a chamber 5, and when sufficient has been accumulated, the chamber is closed and air is blown into it to stir and disentangle the threads. A valve 10 is then opened, and the threads are blown through a conduit 9 into a chamber 12 filled with water to which a binding-material, such as sodium silicate, may be added. When sufficient threads have entered the chamber, the water ds circulated and stirred by means of a pump 19. After the pump is stopped, the mixture of threads and water is allowed to fall into a receptacle or mould 22. The water is drawn off from the mould through taps 26 which are opened successively to allow the threads to settle evenly in the mould. Finally the product is pressed by a press 27 and is allowed to dry. The mould 22 may be replaced by a conveyer on to which the threads tall and form a mattress which is compressed by a roller. The treatment with water may be omitted if desired, the material passing directly from the chamber 5 into the mould. A second chamber 5 may be provided in which threads of other materials, also cut into short and uniform lengths, are disentangled and from which they are fed into the chamber 12 to be mixed with the glass threads.