baber/WOPTO huggingface dataset:
Patent GB-690027-A (GB)
Title: Improvements in and relating to wave guide structures
IPC: H01P1/06
Filed: 1949-01-19
Abstract: 690,027. Wave guides. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 19, 1949 [Jan 23, 1948], No. 1517/49. Class 40 (viii). A rectangular wave-guide 10 is joined to a circular guide 12, the longer transverse side of the wave-guide being parallel to the axis of the circular guide. A stub of the circular guide of length b=9/16 wavelength, is closed by an endplate 13 extending from which is a diametral web 14 having an axial extension a= 1/8 wavelength, and arranged at 45 degrees to the longitudinal axis of the rectangular guide 10. An H01 wave entering from guide 10 encounters web 14 and reflecting end-plate 13 to produce two components at right angles and 90 degrees out of phase, that is a circularly polarized H11 wave moving to the right in circular guide 12. An inductive diaphragm 11 is provided for matching. Two such assemblies having the circular guides connected by rotatable choke joints, provide relatively rotatable rectangular guides for feeding a rotatable antenna. In this case the lengths of the circular guides is immaterial.
Patent GB-872892-A (GB)
Title: Improvements in fungistatic compounds
Inventor: MACRAE FLORENCE JUNE
IPC: C07C49/84
Filed: 1958-01-16
Abstract: The invention comprises the compounds of 2-n-amyloxy-acetophenone and 2-n-hexyloxyacetophenone, and compositions containing them which are suitable for application to the human body for the treatment of dermatomycosis.  These compounds may be obtained by refluxing a mixture of a 2-n-amyl or 2-n-hexyl halide (1 mole) with 2-hydroxyacetophenone (1 mole) in a boiling ethanolic solution of sodium ethoxide (1 mole).  The ethanol is subsequently removed by distillation and the residue is dissolved in ether; the solution is washed with water and with 2N caustic soda solution, dried over magnesium sulphate, and subjected to distillation to remove the ether, the liquid product being then distilled under reduced pressure.ALSO:A composition suitable for application to the human body for the treatment of dermatomycosis comprises 2-n-amyloxy-acetophenone or 2-n-hexyloxy-acetophenone and a carrier or diluent therefor.  These acetophenone compounds are liquids and may be incorporated into a cream or ointment base or with liquids suitable for making lotions.  A polyethylene glycol may be used as cream or ointment carrier base.  In an example, an antifungal jelly is prepared by incorporating a solution of 2-n-amyloxy-acetophenone, salicylic acid, and glycerol, in ethyl alcohol with a gel comprising methyl cellulose, ethyl alcohol, sodium dioctyl sulphosuccinate, and water.  Creams are prepared by mixing 2-n-amyloxy-acetophenone with polyethylene glycol mixtures or with propylene glycol and monocetyl ether of polyethylene glycol.  A lotion is made by mixing 2-n-amyloxy-acetophenone with isopropyl alcohol, acetone, and propylene glycol.  A dusting powder is made by mixing magnesium stearate, talc, and starch, spraying an alcoholic solution of 2-n-amyloxy-acetophenone on to the powder mixture, and heating until all the alcohol has been removed.
Patent GB-1380912-A (GB)
Title: Vehicle radiator grills
IPC: B60K11/04
Filed: 1971-01-12
Abstract: 1380912 Radiator grills CREATORS Ltd 12 Jan 1972 [12 Jan 1971] 1556/71 Heading B7B A vehicle radiator grille comprises a strip 1, Fig. 1, of plastics material having a plurality of longitudinally extending ribs 3 or a plurality of plastics strips 11, Fig. 4, having longitudinally extending ribs 13 and connected together, by strips 16, the spaces 14 between adjacent strips defining ventilation openings. Ventilation apertures 4, Fig. 1, may be provided between adjacent ribs. The ribs 3 may be decorated by bonding to the crest surfaces a layer 5 of metal foil covered with a transparent protective layer; the layer 5 may be a strip of transparent polyester material, the rear face of which is metallized. Alternatively, the layer may be a metal plastics foil laminate comprising a strip of metal foil between layers of plastics foil. The grille may be fixed to the vehicle body by screws or other suitable fixing devices, the ends of the grille being bent rearwardly so as to be hidden behind the vehicle body. Openings may be provided for vehicle headlamps.
Patent GB-1532941-A (GB)
Title: Gas/liquid contact apparatus for mass and heat exchange
IPC: B01D3/30
Filed: 1977-01-14
Abstract: 1532941 Gas/liquid contact apparatus A V SHAFRANOVSKY V M OLEVSKY V K CHUBUKOV and J A BASKOV 14 Jan 1977 01582/77 Headings B1F and B1R [Also in Division F4] In gas/liquid mass and heat exchange apparatus, e.g. contacting nitrogen oxides with water with the resultant formation of nitric acid, comprising a cylindrical casing 1 housing a rotatable shaft 7 carrying a plurality of spaced apart gas/liquid contact units 8 each in the form of flanged bands 9 spirally wound about the shaft 7, with each unit 8 being surrounded by an annular trough 13 for collecting liquid discharged centrifugally outwardly therefrom, the collected liquid is transferred from one unit 8 to the next unit 8 by means of an overflow pipe arrangement 14 the inlet end 15 of which communicates with the annular collector trough and the outlet end 20 of which is arranged to deliver the liquid onto the spiral surface of the next unit 8. A portion of the collected liquid in trough 13 may be recirculated back to the associated contact unit 8 for further passage therethrough via a pipe 22 having an inlet end 24, outlet end 23 and a valve 25 to control the amount of liquid recirculated. A series of movable partitions 21 connected to a spindle 26 at the periphery of the units 8 and rotatable therewith are arranged to extend into the annular troughs 13 to impart movement to the liquid collecting therein. As shown the shaft 7 is disposed vertically within the casing, and liquid, before being distributed to the last contact unit 8, may be cooled in an external heat exchanger 27. In an alternative embodiment (Figs. 3-6 not shown), the shaft (29) is mounted horizontally and the bottom of the annular collection trough (35) communicates with an external chamber (40) located above the casing axis through an inlet opening (44) in its upper part, said chamber having an outlet opening (45) in its lower part communicating with the inlet end (46) of an overflow pipe (37) disposed in the space between adjacent contact units, the outlet end (47) of the overflow pipe is provided with two discharge pipes (48, 49) extending from opposite sides thereof, whereby part of the collected liquid may be recirculated to the same contact unit and part may be supplied to the next unit on the shaft.
Patent GB-833829-A (GB)
Title: Improvements in and relating to printing inks for regenerated cellulose
IPC: B41M1/30
Filed: 1958-01-16
Abstract: 833,829. Inks. KALLE & CO. A.G. Jan. 16, 1958 .[Jan. 18, 1957], No. 1595/58. Class 146(3) Printing inks having improved adhesion to regenerated cellulose are prepared by inclining an organic polyisocyanate in a drying-oil-based printing ink composition. Examples of polyisocyanates to be used are: hexamethylene diisocyanate, toluylene diisocyanate, and the reaction product of hexanetriol and toluylene diisocyanate in the mol ratio of e.g. 1:3 respectively. In the examples printing inks are compounded from: (1) heliogen blue B, titanium white, boiled linseed oil (low and medium viscosity), cobalt lineolate, glazing varnish and an ethyl acetate solution of the reaction product of 1 mol hexanetriol and 3 mols toluylene diisocylanate; (2) carbon black, boiled linseed oil (low, medium and high viscosity), dammar varnish, milori blue, cobalt linoleate and toluylene diisocyanate; (3) titanium white, glazing varnish, dammar varnish, boiled linseed oil (low and high viscosity), cobalt linoleate, a drier and an ethyl acetate solution of the polyisocyanate used in (1); and (4) heliogen green G, boiled linseed oil (low and high viscosity), hydrate of alumina, cobalt, linoleate, and the polyisocyanate used in (1).
Patent GB-314734-A (GB)
Title: Improvements in combing machines
IPC: D01G19/02
Filed: 1928-11-09
Abstract: 314,734. White, J. F. Nov. 9, 1928. No Patent granted (Sealing fee not paid). Combing-machines. -A comb circle for a Noble comb, formed in segments, the lines of division being tangential to a virtual circle of lesser diameter than the comb circle, has the segments secured in position by screws &c. 4 situated within the area occupied by the comb pins. - Reference has been directed by the Comptroller to Specifcation 8195/91.
Patent GB-442253-A (GB)
Title: An improved method of covering aircraft components
IPC: B64C3/26
Filed: 1935-01-18
Abstract: 442,253. Covering aircraft components. FAIREY AVIATION CO., Ltd., Cranford Lane, Hayes, Middlesex, and PEARCE, H. L., 103, Studland Road, Hanwell, London. Jan. 18, 1935, No. 1745. [Class 4] A method of covering aircraft components which embody corrugated sheet metal as part of the covering consists in pressing out tongues or loops from the crests of some of the corrugations ; disposing a plain sheet of metal slotted to give passage to the tongues or loops over the corrugated sheet ; stretching textile fabric cut to give passage to the tongues or loops over the component ; treating the fabric with cellulose varnish or the like ; binding flax cords, tapes or the like around the component so as to pass beneath the tongues or loops : and finally tying the cords, tapes or the like and covering them with frayed edge fabric applied by means of cellulose varnish or the like. In one form, Figs. 1 and 2, an aircraft wing is covered with longitudinally corrugated sheet metal a. At the crests of some of the corrugations longitudinally directed tongues b and pressed out in series running in the fore-and-aft direction and a plain sheet of metal c slotted to give passage to tongues b is disposed thereover. Fabric d is then stretched in position and doped, a small slit being made where it is stretched over the tongues. Flax cords e are then bound round the wing in the fore-and-aft direction and slipped under the tongues b, being then doped and covered by strips f of frayed edge fabric afterwards doped over. In a modification, Fig. 6, metal is pressed out of some of the crests of the corrugations to form loops g through which the cords e are threaded. Alternatively the tongues b or loops g may be pressed out of the plain metal sheet and the latter riveted to corrugated sheet a. In further modifications, sheets a and b are connected by rivets, such as shown in Fig. 8, having heads which may be bent to form tongues or by rivets such as n, Fig. 11, which also serve to secure washer-like elements m constituting tongues or loops.
Patent GB-758028-A (GB)
Title: Improvements in or relating to the processing of silicon
Inventor: BRADSHAW STANLEY EDWIN
IPC: C01B33/02
Filed: 1954-01-20
Abstract: In the production of an ingot of silicon, powdered silicon is melted in a crucible of which at least that part in contact with the silicon is of silicon nitride.  The crucible may be moulded from finely divided silicon nitride produced by heating finely divided silicon to a temperature just below its melting point in an atmosphere of nitrogen.  Alternatively the crucible may be produced by coating the interior of another refractory material, e.g. graphite, with a layer of finely divided silicon and then converting the silicon to silicon nitride.  Heating may be effected in a silicon tube surrounded by a high frequency heating coil in an atmosphere of argon.  The silicon may be directionally freezed by moving the crucible along the tube out of the heating zone.ALSO:A graphite crucible may be lined with silicon nitride by coating the interior of the crucible with a layer of finely divided silicon and heating in an atmosphere of nitrogen to a temperature just below the melting point of silicon.
Patent GB-981315-A (GB)
Title: Improvements relating to spiral sack or carton chutes
Inventor: JAMES ERIC ARNOLD
IPC: B65G11/06
Filed: 1963-01-15
Abstract: 981,315. Spiral shoots for sacks. THOMAS ROBINSON & SON Ltd. Jan. 14, 1964 [Jan. 15, 1963], No. 1811/63. Heading B8S. Sacks are allowed to descend from level 11 to level 6 by means of spiral shoot 1. The shoot is formed as a plurality of units 1 each threaded at 3 on to central shaft 2 which is rotatively supported at 4 and laterally supported by bearings 13, 15 and 25 so that the shoot may be rotated about its axis to vary the point of discharge. The top of the shoot carries an inlet hopper 15, the centre of the shoot is braced at 22 and adjustably secured at 9, and the base of the shoot runs on rollers 5.
Patent GB-1371048-A (GB)
Title: Frequency halving circuits
IPC: H03K3/352
Filed: 1971-01-14
Abstract: 1371048 Thyristor circuits ELECTRIC POWER STORAGE Ltd 13 Jan 1972 [14 Jan 1971] 1821/71 Heading H3T [Also in Division G4] A bi-stable circuit comprises a thyristor 11 and transistor 10 in parallel, a relay 15 operated by the thyristor, input pulses at 30 being arranged to fire the thyristor and operation of the relay connecting the input pulse source to the transistor so that the next pulse extinguishes the thyristor. As shown, extinction of the thyristor produces, via a capacitor 38, a positive pulse to operate a next thyristor in a chain of such circuits forming a counter. The contact of the relay may alternatively changeover the pulse input connections from the thyristor to the transistor. Figs. 2-6 (not shown) illustrate variations in the counter. Fig. 2, includes common set and reset lines (60-52) for the stages and an isolating diode 56 to prevent the transistor current maintaining the relay operated. Fig. 3, includes an inverter for each stage to provide an inverted output and Fig. 4, provides changeover switches to select, erect or inverted outputs to permit count up or down. Fig. 5, includes a common input (86) to the stages to complement the count and Fig. 6, includes diode AND and OR gates connected to the stages to indicate all stages at "1" and all at "0". To compare two numbers a pulse train representing the first number is inserted and then complemented. The second pulse train is then fed in. If the numbers are equal the counter will be full and the next pulse will reset the counter to "0". An inhibit transistor (101) may prevent further counting.
Patent GB-1066737-A (GB)
Title: Vibration-damping system for a turbine or compressor blade ring
IPC: F01D5/22
Filed: 1966-01-14
Abstract: 1,066,737. Turbine and compressor blades. BROWN, BOVERI & CO. Ltd. Jan. 14, 1966 [Jan. 17, 1965], No. 1869/66. Addition to 979, 392. Heading F1T. Shrouded rotor or stator blades in a turbine or compressor are mounted in at least one group, a number of blades in the group being stressed under non-working and working conditions to urge the individual shroud plates of the blades in the group towards the central blade or blades of the group so that adjacent shroud plates press against one another to effect vibration damping. In a group having four blades 1 to 4, the bodies 11 of the blades 1 or 1 and 2 are prebent in the direction of the arrow 9 and the bodies of the blades 4 or 3 and 4 are prebent in the direction of the arrow 10 so that in the assembled state the blades are urged in the direction of the arrows. The shroud plates of the end blades 1, 4 are spaced from the blades 5, 6 in adjacent groups by means of shims 16 between respective blade roots. The gap between adjacent groups can be omitted if the contacting surfaces of the shroud plates are inclined to the axial plane at an angle whose tangent is greater than the coefficient of friction of the surfaces. In this case the blades receive a torsional as well as a bending prestressing on assembly. In modifications, the prestressing of the blades is achieved by circumferentially shortening certain of the blade roots of a group relative to the shroud plates or by lengthening appropriate shroud plates. Alternatively, the circumferential thickness of mounting elements between adjacent blade roots may be adjusted. The complete blade ring may form a single group, in which case an appropriate gap is left between the shroud plates somewhere on the ring. Different numbers of blades may form a group within any one blade ring.
Patent GB-810160-A (GB)
Title: An improved coffee filter
IPC: A47J31/02
Filed: 1957-01-18
Abstract: 810,160. Coffee-making devices. DILLEMANN, R. Jan. 18, 1957, No. 1915/57. Class 129. A coffee filter comprises a hollow body portion 1 having two grids 2, 3 between which coffee is squeezed and a piston 5, 6 with a peripheral sealing element 7a slidable in the body portion 1 to force water under pressure through the coffee and having an operating-rod 8 slidable in a lid or cover 9 of the hollow body. As shown, the grid 2 forms the base of body 1 and receives coffee which is then covered by the second grid 3, the two grids being pressed together by a screw or bolt 12. The piston comprises plates 5, 6 holding an elastic diaphragm 7 whose periphery forms the sealing element 7a. Cover 9 has a collar 11 in the centre through which a rod 8 passes connected at one end to the piston and with a knob 10 at the other end.
Patent GB-574533-A (GB)
Title: Improvements in and connected with sockets of electric couplings
IPC: H01R13/15
Filed: 1944-02-02
Abstract: 574,533. Two-part couplings. CRABTREE & CO., Ltd., J. A., and MORGAN, R. W. Feb. 2, 1944, No. 1916. [Class 38 (i)] A self-aligning electric socket comprises two resiliently connected plates or clamping members adapted to embrace a plug pin d at one end and a terminal or connector at the other end. In the construction shown in Figs. ] and 2, the two plates b, b<1> have channelled ends e of semi-circular shape and are connected by a flat pin f around which is coiled a spring g so as to urge the plates together. The terminal c, held in one end of the plates, is secured to the base a by a nut i whilst lugs i, formed on the opposite ends of the plates, maintain the socket in position by engaging an undercut formation i<1> in the base which also permits the positioning of the plates on the terminal so that the socket can occupy a position in alignment with plug pins of varying diameters. In a modification Fig. 5 (not shown) each plate is channelled at one end and flat for the remainder of its length. According to Fig. 6, the semi-circular ends of the plates b<3>, b<4> embrace the plug pin d whilst the other ends are flat and are resiliently secured on opposite sides of a terminal block c<1> by a pin f<4> passing through the block and having a spring g<1> coiled round it, operating compressively between the enlarged end f of the pin and the closed end of a thimble m. Fig. 7 shows a further modification in which the plates b<5> are urged together by springs g<2> mounted on either side of them on a pin f<7>, the whole being held in a U-shaped bracket n secured to a base by screws o.
Patent GB-289171-A (GB)
Title: Improvements in or relating to means for indicating and controlling the level of ink in the ink reservoir of inking mechanism for printing machines
IPC: B41F31/02
Filed: 1927-01-24
Abstract: 289,171. Lougee, F. G., and Morris, E. T. Jan. 24, 1927. Levels, regulating; indicators actuated by floats.-A device for regulating and indicating the level in the reservoir of the inking mechanism of printing machines comprises a float 2 carried by an arm 4 having a perforated sleeve 5 surrounding a perforated ink supply pipe 6, so that the supply is controlled according to the level in the reservoir 1. Rods 12, 13, 14 transmit the movements of the float to a rack 16 gearing with a pinion 17 carrying an indicating dial 19. The upper end of the rod 14 carries a striking knob 21, by which the float may be momentarily depressed to determine whether it is working properly.
Patent GB-1125042-A (GB)
Title: Transistor pulse control system
Inventor: STERFF WILHELM
IPC: H02P7/29
Filed: 1966-01-17
Abstract: 1,125,042. Transistor switching circuits. SCHALTBAU - G.m.b.H. 17 Jan., 1966 [4 Feb., 1965], No. 2104/66. Heading H3T. [Also in Division H2] A circuit for applying pulses to a high power direct current load, for example to an electric motor M during start-up or for control during operation, comprises a plurality of parallel connected switching transistors T1-T4 controlled by one or more driver transistors T5, the emitter-collector path of each driver transistor being connected between the base and collector circuits of a switching transistor so that the emitter-collector current of the driver transistor flows through the load, and balancing members, e.g. R 1 -R 4 , in the collector circuits or both the collector and emitter circuits of switching transistors T 1 -T 4  for effecting uniform distribution of current between the transistors T 1- T 4 . Control pulses are applied to the base of the driver transistor T5 as shown, through transistor T6. The arrangement of transistors T7-T10 ensures that if the volltage across the switching transistors T1-T4 exceeds a predetermined value, the base current of transistors T1-T4 is supplemented through transistor T10 by the switching on of transistor T8 (followed by that of transistors T9 and T10). A transformer may be connected with its secondary winding in series with the collector of transistor T5, the control pulses being applied to its primary (Fig. 2, not shown) so as to speed the switching on and off of transistors T1-T4.