baber/WOPTO huggingface dataset:
Patent GB-524457-A (GB)
Title: Improvements in or relating to antennae for short wave radio transmitters and receives
IPC: H01Q9/46
Filed: 1939-01-30
Abstract: 524,457. Aeriais ; directive wireless signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 30, 1939, Nos. 3138, 3139, 3140 and 3141. Convention dates. Jan. 29, 1938, Feb. 5, 1938, Feb. 15, 1938 and Feb. 17, 1938. [Class 40 (v)] A dipole aerial suitable for television signals comprises two conical arms, each of a length between.0.23 and 0.5 of the middle wave of the signal band, and diverging from a central feedline. The impedance of the system is normally constant over the range of side-bands, though it can be varied to meet different working conditions, such as a change in effective height, by adjusting the angle of the cone or by making part of the aerial surface cylindrical. As shown in Fig. 3, the two conical arms 1<SP>1</SP>, 2<SP>1</SP> are adjustably mounted on screw rods 5 to which the ends of the transmission line TL are connected. In Fig. 4 auxiliary rings 4<SP>1</SP> are inserted between the apex and base of the cone so as to make the end section cylindrical in shape, for impedance matching purposes. Figs. 6 and 7 show alternative forms of construction. The two aerial arms may be inclined at 90 degrees to each other, or two crossed pairs of dipoles may be used. Fig. 9 shows three conical elements 24, 25, 26 inclined mutually at 120 degrees and arranged in the same horizontal plane. They are energized by three branch lines 27, 28, 29 from the common feed-line TL. The lengths of the branch lines increase successively by one-third of a wavelength, in order to maintain the required phase-relation in each aerial element. The system is arranged half a wavelength above ground in order to cancel out vertical radiation. Fig. 11 shows a stacked array of three pairs A, B, C of crossed horizontal dipoles, placed half a wavelength apart in the vertical plane and energized in-phase by branched feed-lines 33<SP>1</SP>, 341. The aerials are supported, without the use of insulators, first at their apices by the inner conductor of the co-axial feed-lines TL, Fig. 13, and also at a point of minimum field-intensity (about one-third away from the base of the cone) by supports 46. The latter are connected to an axial rod 45 which extends between the apex of the cone and a metallic spider 44. The axial rod may also be extended through the base of the cone to meet external supporting-rods similar to 46. In this case the length of the support is made equal to an odd multiple of a quarter-wavelength, from the ground to the spider 44, in order to present a high impedance to leakage currents. Specification 469,366 is referred to.
Patent GB-325967-A (GB)
Title: Improvements in the manufacture and production of colouring materials for colouring materials of the nature of rubber
IPC: D06P7/00
Filed: 1929-01-30
Abstract: 325,967. I. G. Farbenindustrie Akt.- Ges. Jan. 30, 1929. Addition to 242,274. Fats and fatty oils, sulphuretted. - Factice, with or without admixture with glycerol, rubber softeners, plastic or viscous antioxidants or vulcanization accelerators, is coloured by the process of the parent Specification, in which large quantities of insoluble colouring matter are mechanically incorporated in the material until they no longer separate from a solution. In an example, 100 parts of cadmium yellow are mixed with 100 parts of factice in a roller mill, until a fine dispersion is obtained
Patent GB-667017-A (GB)
Title: Improvements relating to puff irons
IPC: D06C7/00
Filed: 1950-02-07
Abstract: 667,017. Ironing. MATTHEWS, E. F. (Glover, Inc., B.). Feb. 7, 1950, No. 3172/50. Class 138 (ii). A puff iron assembly comprises a hollow head 10 divided into two compartments 11, 12, one of which is provided with discharge holes 13, a steam line communicating with one compartment and an air line communicating with the other, and valves controlling the lines so that either steam or air may be discharged from the head. Steam is supplied to the lower compartment 12 through pipes 39 and 14, and may be admitted to the upper compartment 11 by opening a valve communicating therewith. This valve comprises a valve seat 17 received in a partition 10a in the head and centrally bored at 18 and 18a. The bore 18a communicates with the compartment 11 through a plurality of radial holes 18b. The valve is closed by a member 20 carrying a, gasket 21. which is pressed against a valve seat 17a, by a compression spring 24. The valve is operated by a stem 19 which is connected to an arm 29 pivoted at 28 and connected by a link 30 to a handle or pedal. The stem 19 and valve-member 20 are hollow for the supply of air to the upper conpartment, the lower end of stem' 19 being connected by an elbow 32 and flexible hose 33 to an air valve 34. This valve is of the spring- actuated type opened by raising a valve pin 34a by means of an arm 36, link 37 and a manually operated lever or pedal. The air in the hollow stem 19 is heated by steam in the pipe 14 surrounding it and also by conduction from the steam pipe 39 through a thin-walled casing 40 packed with shavings 41 of non-corrosive metal. A heat-insulating plastic protector tube 25 surrounds the pipe 14.
Patent GB-122937-A (GB)
Title: Improvements in Hay-forks for Operating on Masses of Hay.
Inventor: LEWIS ALEXANDER
IPC: A01D87/00
Filed: 1918-02-23
Abstract: 122,937. Lewis, A. Feb. 23, 1919. Grab-forks.-A grab-fork for raising hay &c. has a pair of arms B pivoted to a cross-head F and carrying at their lower ends pivoted slotted arms a integral with the forks A. The slotted arms a are engaged by levers D pivoted to spring-pressed sliders G on the arms B and connected at their upper ends by ropes E to a common operating-rope E‹ by pulling on which the forks are raised to engage the mass of hay, the upper ends of the slotted arms being locked by engaging the spring- pressed sliders. When the grab has been moved to the dumping position, a further pull on the rope E‹ slightly raises the arms D and sliders and releases the forks so that the load is deposited.
Patent GB-108496-A (GB)
Title: A New Process and Apparatus for Transforming Dense Crude Petroleum into Petroleum of Less Density.
Inventor: DEAKIN FRANK BOYDEN
Filed: 1916-08-16
Abstract: 108,496. Deakin. F. B., (Venturino, M. E.). Aug. 16, 1916. Hydrocarbons. cracking; bulk evaporators. - -In distilling crude petroleum, gas oil, residuals of petroleum or asphalts. &c. for the production of lighter h y d r o carbons, the upper part of the retort is cooled by the controlled application of water or other liquid in order to condense the high-boiling constituents of the vapours while allowing the lighter fractions to escape to the condenser. The retort may be cooled by a water tank 15, water jacket 19, by applying a spray of liquid to the outside of the rotort, or by internal means such as cooling-tubes 25. A cooling-tank 8 may be formed around the vapour-outlet pipe 7 which is inclined upwards. The coke which is formed is maintained in suspension by a scraper 26. The heavier constituents of the liquid are removed by a pipe communicating with a chamber in the retort which is closed at the top and open at the bottom : the retort is heated by the combustion of the oils so withdrawn. To prevent the transmission of heat to the upper portion of the retort, the lower and upper walls are separated by sheets of asbestos.
Patent GB-524515-A (GB)
Title: Separation of lactoflavin and its phosphoric acid ester
IPC: A61K31/525
Filed: 1939-01-31
Abstract: 524,515. Lactoflavin. NAAMLOOZE VENNOOTSCHAP ORGANON. Jan. 31, 1939, No. 3277. Convention date, Feb. 1, 1938. [Class 2 (iii)] Lactoflavin and lactoflavin phosphoric acid are separated by distribution between an aqueous solution and a phenyl-substituted alkanol or a mixture of a phenol with a hydrocarbon or aliphatic alcohol. In examples the two liquids are (1) sodium chloride solution and benzyl alcohol; (2) water and # phenylethyl methyl ethyl carbinol; (3) water and a mixture of phenol and isobutanol ; (4) an aqueous sodium chloride solution of lactoflavin and lactoflavin phosphoric acid is extracted with phenol which extracts both compounds ; then benzene is added and the whole is shaken with an equal volume of water which extracts the lactoflavin phosphoric acid, the lactoflavin remaining in the organic solvent mixture. The Specification as open to inspection under Sect. 91 is not limited to the solvents defined above but includes distribution between any two immersible solvents both of which may be organic. This subject-matter does not appear in the Specification as accepted.
Patent GB-651413-A (GB)
Title: Improvements in or relating to steerable toy or model vehicles
IPC: A63H17/00
Filed: 1948-02-04
Abstract: 651,413. Two-part couplings combined with switches. JACKSON, J. M. Feb. 4, 1948, No. 3313. [Class 38 (i)] [Also in Group XV] A remote control device for use with a steerable toy or model vehicle which is propelled by an electric motor incorporated in the vehicle and steered by mechanism actuated by air or other fluid pressure comprises a compressible bulb or piston which is actuated to generate air pressure, an outlet leading from said bulb or piston to a connecting nozzle or socket, and an electric switch connected with electrical connectors adapted for connection to external conductors. The vehicle is steered by air pressure in a bag 117 (see Group XV) and is connected to the remote control device through a unitary flexible connection comprising a tube 133 of rubber or like material, and two electrical conductors 136, 137 of which one (136) may pass through the bore of the tube (allowing free passage of air) while the other (137) may be constituted by two or more insulated wires braided around the outer surface of the tube. Connector fittings 131 are attached at each end. These have a tubular spigot 132 in fluid connection with the tube 133 and contact-pins 134, 135 connected to the conductors 136, 137. To ensure tight fitting with the socket on the car the spigot 132 may be tapered and the fitting moulded from a resilient material such as polythene. The contact pins pass into the bores in the screws 123. The remote control device consists of a casing 140 enclosing a rubber bag 141, the open end of which is closed by a plate 142 bearing a central hole 143. A plunger 144 is slidably mounted in the casing below the bag and is operated by an internal rack 145 engaging a pinion 146 on a shaft turned by a hand wheel 147. The plate 142 is formed with a central part 148 surrounding the hole 143. The switch mechanism comprises two stirrup shaped spring contacts 149 mounted round the part 148 and connected to a source of electric power. The central portion of each spring is bent as shown at 151 and is engaged by two of the lugs 152 on the underside of a switch-member 153 having an operating handle. The pins 134, 135 on the connector fitting lie in diametrically-opposed recesses 158 on the part 148, movement of the switch member bringing one or other of the springs 149 into contact with the pins, thus starting, stopping or reversing the motor propelling the toy. If desired, both conductors may be braided in opposite direction around the outer surface of the flexible tube, or both may pass through the bore.
Patent GB-854525-A (GB)
Title: Improvements in data conversion systems
Inventor: JONES EDWARD MONRAD
IPC: H03M1/00
Filed: 1957-01-30
Abstract: 854,525. Electric selective signalling systems. BALDWIN PIANO CO. Jan. 30, 1957, No. 3313/57. Class 40 (1). [Also in Group XL (b)] In a data conversion system, wherein radiant energy from a source is selectively transmitted by an encoding member to a series of photo-electric devices, a reference photo-electric device is excited by the same source, and a voltage comparison system is provided which is responsive only to those signals from the series of photo-electric devices which are above the voltage level set by the reference photo-electric device, by which means errors due to black specks and pin-holes in the coded areas of the encoding member, and due to changes in intensity of the source and ageing of the photo-cells are minimized or compensated for. A code disc 12, Fig. 2, which contains a plurality of concentric rings made up of alternately transparent and opaque areas, is arranged between a radiant energy source 36 including a flash-lamp 37 excited by a trigger amplifier 35, and a series of photo-electric cells 19-23. A reference photo-electric cell 24 receives light from the source 36 through a clear circular track on the disc, a light filter or appropriate load resistor being associated with this cell so that its output is 50% of the output of the photo-cells 19-23. The outputs of the cells 19-24 are applied to a delay line 44 to produce a series of pulses across resistor 47 which are amplified at 51 to produce the output which may be as illustrated at (A) in Fig. 3. The output of the amplifier 51 is fed to a D.C. level clamp 52, which under the control of a pulse generator 53 actuated by the trigger' amplifier 35, establishes the level of the peak of the pulse derived from the reference. cell 24. From the D.C. level clamp 52, the signal is fed to a sampler comparator 55 which, under cycling control of a pulse train generator 54 actuated by the trigger amplifier, samples each pulse to see whether it is larger or smaller in amplitude than the reference pulse. The output of the sampler is proportional to the excess of the particular pulse with respect to the reference pulse, and those pulses having less amplitude than the reference pulse produce no output from the sampler, resulting in a waveform of the typical form shown at (B), Fig. 3. This output is fed to a flip-flop circuit 57 which is set to zero at the start of each pulse train by the trigger amplifier 35. The output of the pulse train generator 54 is mixed with the output of the flip-flop circuit 57 to produce the output waveform shown at (C) in Fig. 3. The signal derived from the code disc 12 is in cyclic binary code and it is stated that the flip-flop 57 converts to a straight binary code. In another modification, the use of the delay line 44 is dispensed with, the output of each cell 19-23 being applied to a separate comparator circuit controlled by the photo-cell 24.
Patent GB-1498651-A (GB)
Title: Process for the purification of crude chenodeoxycholic acid
IPC: C07J9/00
Filed: 1975-01-27
Abstract: 1498651 Purification of crude chenodeoxycholic acid SCHERING AG 27 Jan 1975 [25 Jan 1974] 3363/75 Heading C2U Crude chenodeoxycholic acid is purified by subjecting an aqueous solution of an alkali metal salt thereof to liquid-liquid extraction with an organic solvent, then acidifying the aqueous solution with a dilute acid, extractng the chenodeoxycholic acid with a waterimmiscible organic solvent and precipitating it with water. The preferred first extraction solvent is ethyl acetate or a mixture of isobutanol and toluene but others are also referred to. A suitable second extraction solvent is ethyl  acetate. The crude starting material is generally obtained by esterifying the cholic acid in a cholic acid fraction of the bile, then acetylating the 3- and 7-OH groups, then oxidizing the 12-OH group with chromic acid to a keto group, and finally heating the 12-keto compound in the presence of hydrazine hydrate and KOH in ethylene glycol for at least one hour at about 200 C. Specification 1,360,354 is referred to.
Patent GB-788529-A (GB)
Title: Device for projecting pulverulent substances such as fire-extinguishing products or insect-powders
IPC: B05B7/14
Filed: 1955-02-04
Abstract: 788,529. Continuous polyamide production. FARBENFABRIKEN BAYER AKT. GES. Aug. 16, 1955 [Sept. 24, 1964], No. 23622/55. Class 2 (5). [Also in Group III] e caprolactam is continuously polymerized in an apparatus comprising a feed tube and a plurality of withdrawal tubes arranged around and with their axes parallel to the feed tube, all said tubes opening into a common evaporating chamber arranged at the upper end, the withdrawal tubes being equipped with throttles at their lower ends and opening into a collecting chamber. A mixture of lactam, water and a viscosity stabilizer, e.g. stearic acid or stearylamine is introduced through 1 into the lower end of feed tube 3 through which it passes to the evaporating chamber 5 and then down the withdrawal tubes 7 fitted with throttles 8 into the collecting chamber 9.
Patent GB-700905-A (GB)
Title: Improvements in or relating to insulating glazed panels
IPC: E06B3/663
Filed: 1950-02-10
Abstract: 700,905. Glazing. DRAKE, R. I. Feb. 2, 1951 '[Feb. 10, 1950], No. 3485/50. Class 20 (3) Insulating glazed panels comprise two sheets of glass, synthetic resin, &c., spaced apart round their perimeter by the stems of a resilient strip of T-section, the cross limb of the T-section constituting a seating for the short edges and the panel edge being sealed by an adhesive strip, two hollow needles being inserted through the strip and dehydrated air or other gas introduced through one of them until the air has been expelled through the other needle. After withdrawal of the needles the panel edge is sealed by an adhesive strip or layer. A panel may be built up of three or more sheets each pair being separated as the sheets of a double-glazed panel. Two glass sheets 10, 11 are spaced by an adherent strip 12 of a bitumastic material described in Specification 672,676, [Group XXIII], and a strip 13 of material known as "Bostick 692" (" Bostick " being a Registered Trade Mark) is located round their edges, the combined strips 12, 13 being of T-section. The panel edge joints are coated with an adhesive and sealed by aluminium foil strip 16.
Patent GB-1193381-A (GB)
Title: Acoustic Borehole Logging Technique
Inventor: WHITE JAMES EDWARD
IPC: G01V1/46
Filed: 1968-01-23
Abstract: 1,193,381. Well-logging. MARATHON OIL CO. 23 Jan., 1968, No. 3568/68. Heading H4D. An acoustic velocity log of a borehole is obtained by applying a plurality of directional acoustic signals simultaneously to the borehole wall at points spaced round the wall and lying in a first plane perpendicular to the borehole axis, and sensing the propagated signals at spaced points lying in a second plane perpendicular to the borehole axis and spaced a known distance from the first plane. The Fig: 1 logging tool 12 carries a ring of equally-spaced transmitter transducer units 20 below two rings of equallyspaced receiver transducer units 20. The transducer units are sprung against the borehole wall or casing. Each transducer unit comprises (Fig. 2) three cylindrical barium titanate cylinders 26, 28, 30 (or magnetic coil and core assemblies) on a tetrahedral mounting block 32 having a contact button 24 through which acoustic energy is coupled to the borehole. Inertial masses 34 are fixed to the transducers. For transmission of acoustic energy in a selected direction the three transducers of a unit 20 are energized simultaneously by signals of appropriate amplitude and phase; for reception from a selected direction the outputs of the three transducers in a receiver transducer unit are combined and weighted appropriately. Pulsed or continuous wave energy may be used in determining propagation velocity, through formations traversed by the borehole, by comparing arrival times or phases of signals received at one receiver ring with those of signals received at the second receiver ring or with the transmitted signals. In one propagation mode the energization of the transmitter units 20 is such that all transmitted beams are coplanar and each beam is tangential to the borehole wall in the same rotary direction, thereby tending to twist the borehole in a shear mode. In a second mode the beams are coplanar and directed radially outward relative to the wall, tending to move the wall radially in both shear and compression modes. In a third mode the beams are all in the same direction, parallel to the borehole axis, tending to vibrate the wall axially in a compressional mode. In a fourth mode the beams are coplanar and all in the same direction, tending to flex the wall in a shear mode. The direction characteristics of the receiver units 20 are matched to those of the particular propagation mode, whereby reception of extraneous signals is largely eliminated. By switching rapidly between the various propagation modes, an effectively continuous velocity-log for all modes may be obtained.
Patent GB-1358796-A (GB)
Title: Strip straightening machines
IPC: B21D1/02
Filed: 1972-01-26
Abstract: 1358796 Straightening machines I UNGERER 26 Jan 1972 [13 May 1971] 3633/72 Heading B3E A metal strip straightening machine has an even number of rolls between which the strip is fed in an S-shaped path and the rolls are driven from a common drive through differential gears each arranged to drive a pair of rolls and the differential gears are in turn driven in pairs by one or more further differential gears. In one embodiment there are four rolls 22, 27, 40, 45 driven in pairs by differentials gears 12, 30 which are driven by a common differential gear 1 from a common drive 8. The differential gears 12, 30 each drive adjacent rolls in opposite directions since their output shafts 13, 14, 31, 32 are connected to the roll shafts 21, 26, 39, 44 through bevel gears 18, 19 &c. In a second similar embodiment, Fig. 3 (not shown), one roll shaft (59) (61) of each roll pair is driven directly by the pair of differential gear (12<SP>1</SP>) (30<SP>1</SP>) and the other roll shaft is driven through spur gears (64) -(67). The straightening machine is used between backstay and traction S-roll stands of a stretch straightening machine.
Patent GB-620992-A (GB)
Title: Improvements relating to indicator devices
IPC: H04M3/08
Filed: 1947-02-07
Abstract: 620,992. Electric indicating systems. ENGLISH ELECTRIC CO., Ltd. (DOLAN, H.). Feb. 7, 1947, No. 3656. [Class 40 (i)] In a system for indicating which of a number of safety contacts 2 to 6 in series with the control coil 1 of a contactor has opened, a control relay AR is normally energized through a wiper 51 of a uniselector and all the contacts in series, and when a contact opens, AR falls and the uniselector, which may be motor-driven or of the step-by-step type, advances to a position in which AR is again operated. The position in which the uniselector stops is indicated by a pointer or lamp or drop indicator and may be recorded. As shown, the relapse of AR (shown energized) completes a self-interrupting circuit for the driving magnet S and a circuit for a slow-to-release relay CR. When the open contact is passed, AR pulls up again and the relapse of CR completes the circuit of a drop indicator, F2 to F6 over wiper S3. The indicator opens its own circuit and, over a further wiper S4, completes the circuit of a sluggish relay DR, which in turn energizes relay BR to lock and complete a homing circuit for the switch. The home position is not that shown but that in which wiper S1 engages a contact connected to the supply over a contact 1a which is closed when the contactor is open. Consequently, AR is energized by the time BR falls and further rotation of the switch is prevented. When the contactor closes again, AR is released, and the switch makes a step to the position shown. The automatic setting feature may be omitted. A permanent record may be given by controlling the position of a pen recorder by impulses generated by the movement of wiper S3. The system may be supplied from the A.C. mains or from a separate source.