baber/WOPTO huggingface dataset:
Patent GB-637915-A (GB)
Title: Improvements relating to the detection, measurement or correction of voltage or current variations in electric circuits
IPC: G05F1/247
Filed: 1948-05-03
Abstract: 637,915. Current and voltage measurements. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., STEVENS, S. A., and DUCKITT, H. May 3, 1948, No. 12102. [Class 37] In apparatus for the detection, measurement, or correction of voltage or current fluctuations a D.C. voltage is derived from the circuit under test and is automatically at predetermined intervals of time impressed upon a separate circuit in opposition to a voltage derived from a standard voltage, the current in the separate circuit due to any difference between these derived voltages operating an indicating, measuring, or correcting device. A rotating contact arm 1 is driven by motor mechanism so as to make contact in cyclic order with fixed contacts R1, Y1, B1 connected to the phase conductors R, Y, B of a three-phase circuit. The arm 1 is connected to one input terminal 2 of a rectifier 3, the other input terminal 4 of which is connected to the neutral conductor N. The output terminals 5, 6 of the rectifier 3 are connected through a high resistance 7 to the winding of a testing relay TR. A standard reference voltage is derived from an A.C. source 8 through a rectifier 9, the output terminals 10, 11 of which are connected through a high resistance 12 to the winding of a standard relay SR. A testing condenser TC and a standard condenser SC are connected in a circuit in series with the winding 13 of a polarized relay 14 and a contact TR1 normally closed when the testing relay TR is de-energized. The contacts TR2, TR3 of the testing relay TR are normally open and are closed on energization of the relay TR. The contact SR1 of the standard relay SR is normally closed by energization of the standard relay SR. Three contacts R2, Y2, B2 are operated by the rotating arm 1, being closed in cyclic order as the arm 1 engages the contacts R, Y, B, and opened just before the arm 1 breaks contact. The testing relay TR is energized during each engagement of the arm 1 with the contacts R1, Y1, B1, whilst the standard relay SR is energized continuously. The testing condenser TC is charged to a voltage corresponding to that of the phase conductor and the standard condenser SC is charged to a voltage corresponding to the standard voltage. As soon as the arm 1 leaves its contact the testing relay TR is de-energized, opening contacts TR2, TR3 and isolating the condensers SC, TC, and closing the contact TR1. If the voltages to which the condensers TC, SC are unequal a current flows in one direction or the other through the winding 13 and closes the corresponding contact 15, 16 to cause a decrease or increase in the voltage of the corresponding phase conductor. Specification 548,526, [Group XXXV], is referred to.
Patent GB-559718-A (GB)
Title: Improvements in or relating to variable inductance devices for tuning high frequency electric circuits
IPC: H01F21/06
Filed: 1942-08-28
Abstract: 559,718. Inductances. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 28, 1942, No. 12118. Convention date, July 30, 1941. [Class 38 (ii)] In a device for tuning oscillatory circuits and comprising a coil 1 the inductance of which is varied by movement of a magnetic dust core 6, the latter is provided with electrically conducting elements 7 on its surface so that increase of inductance by insertion of the core within the coil is accompanied by increase in the natural capacity of the coil, thereby extending the tuning range. A small variable condenser 3 may be connected across the coil for fine adjustment, and the effect of the inter-electrode capacity of the associated valve on the capacity of the circuit may be reduced by connecting the grid 4 to an intermediate point on the coil or to the junction of a pair of condensers connected in series across the coil. Specification 474,711 is referred to.
Patent GB-163662-A (GB)
Title: Improvements in cutting torches
IPC: F23D14/42
Filed: 1920-02-09
Abstract: 163,662. Godfrey, A. Feb. 9, 1920. Blowpipe burners.- The burner nozzle of an oxy-acetylene cutting torch comprises a cap 8 formed with cutting oxygen, heating oxygen, and acetylene passages 9, 10, 11 respectively, a block 4 having a central cutting oxygen passage 5 and a heating gas passage 6, a stem 1 having a central cutting oxygen passage 2 and a spiral groove 7 on its outer surface forming the heating gas passage., a screwed socket 3 securing the coned head of the stem 1 to the cap 8, and a sleeve 13 screwing on the socket 3 and fitting over the stem 1. The heating gas mixture issues through the annular orifice between the coned lower end of the stem 1 and the correspondingly coned lower end of the sleeve 13. The size of this orifice may be varied by adjusting the sleeve 13 on the socket 3, the socket being provided with division marks reading against a fixed pointer. A gland nut 14 and packing 15 prevent leakage of the gas from the sleeve 13. The cutting oxygen passage terminates in a nipple 12 preferably formed of tungsten and projecting beyond the heating gas orifice. In a modification shown in Fig. 3, the stem is provided with interchangeable lower ends or tips screwing on a projection 18. The tips 17 are partly parallel and partly conical. The parallel portion may be plain or formed with spiral grooves 19 of finer pitch than the grooves 17. An annular chamber 20 may be provided between the stem and the commencement of the finer grooves to assist in mixing the gases.
Patent GB-769100-A (GB)
Title: Improvements in or relating to the preserving of milk and products thereof
Inventor: ROMERO MANUEL
IPC: A23C3/00
Filed: 1954-04-28
Abstract: 769,100. Preserving milk &c. STABIL INTERNACIONAL SOC. ANON. April 28, 1954, No. 12340/54. Class 49 In preserving milk, cream and preparations such as milk with coffee or tea. the liquid is placed, at a temperature less than its boiling point at atmospheric pressure, in the final container, preferably a container of the type returnable for further use, the pressure in the container is reduced sufficiently to cause boiling of the liquid, the container is closed without permitting entrance of air, and the closed container is heated to sterilize its contents. The device of the drawing comprises a hood a which fits over and above the mouth of a bottle b and is mounted in an airtight manner by a resilient band 3 around the neck of the bottle, a side tube 10 through which air is withdrawn from the hood, and means operated from outside the hood for closing the container, without admitting air, after evacuation of air from the hood such means comprising a rod 4 which is movable through the hood top 2 in compressed packing 5, and which. carries at its lower end 7 a crown cork S held in clips 9.
Patent GB-807104-A (GB)
Title: Improvements relating to tipping vehicles
IPC: B60P1/26
Filed: 1956-04-23
Abstract: 807,104. Tipping vehicles. EDWARDS BROS. (TIPPERS) Ltd., and HEYES, W. April 23,1957 [April 23,1956], No.12353/56. Clas 108(1) An end tipping vehicle having an underslung tailgate 14 has a catch 19 for releasably engaging a detent 16 on the tailgate to secure the latter in the closed position, an operating lever 22 pivoted on the tipping body 10, means 18 providing an operative connection between said operating lever and said catch and cam means on the chasis 11 adapted when the body 10 is tipped, to actuate a cam follower 24 carried by operating lever 22 to release the catch and on the return movement of the body to re-engage the catch and re-secure the tail-gate in the closed position. Two spaced blocks 25, 26 mounted on chasis 11 form a cam track 27 for the follower 24, which is supported between pivoted plates 22a and 22b: the other end of 22a being pivoted to a pull-push rod 21 and transverse shaft 18 notably secured to rearmost body cross-member 17. Rotation of shaft 18 causes two catches 19, secured to the ends of this shaft, to disengage from projecting corresponding pins 16 on the tailgate, permitting the latter to swing freely during the tipping operation.
Patent GB-1212554-A (GB)
Title: Improvements relating to fishplates and mine roof support arches incorporating same
Inventor: PURDY ROBERT CROSSLEY
IPC: E21D11/20
Filed: 1968-03-14
Abstract: 1,212,554. Yielding mine arches. BECORIT (RESEARCH) Ltd. 24 April, 1969 [14 March, 1968], No. 12354/68. Heading E1E. An arcuate fishplate having 'bolt holes 14 for attachment to a mine arch section is provided with an elongated slot 10 for attachment to a relatively yielding mine arch section, the slotted portion of the fishplate being reinforced by U-section members 12 bridging the slot without obstructing longitudinal movement of the bolt received therein. In a modification, see Figs. 4..7 (not shown), (bath portions of the fishplate are provided with elongated slots reinforced by U-shaped bridging members on either side of a medial, transversely extending web, the end walls of the fishplate being reinforced by end walls.
Patent GB-433033-A (GB)
Title: Improvements in and relating to electric incandescent lamps
IPC: H01J5/44
Filed: 1935-04-24
Abstract: 433,033. Leading-in wires for electric incandescent lamps. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London. April 24, 1935, No. 12368. Convention date, April 24, 1934. [Class 39 (ii)] In an electric incandescent lamp comprising a concentrated filament 14 mounted on a pair of leading-in wires 10 sealed into a bulb 19, one or both of the leading-in wires is, or are, extended to engage a portion of the bulb, the extended portion being of a predetermined length in order to locate the filament in a definite predetermined position in the bulb. As shown in Figs. 1 and 2, both leading-in wires 10 are extended, their innermost ends being located at a predetermined distance from the surface 13 of an insulating bead 11 separating the wires. The filament 14 is also mounted at a predetermined distance from the surface of the bead 11. The inner ends 12 of the leading-in wires are bent outwardly, and the outer ends are bent to comprise short laterally extending portions 15 which rest upon the neck of the bulb during the attachment thereto of the exhausting tube 20. Before sealing, the suspended ends 12 are preferably spaced from the inner face of the lens 18 of the bulb. Sealing is effected by lowering the exhaust tube 20 upon the neck of the bulb 17 and rotating them together about their longitudinal axis, with a flame directed upon their edges which are united by pressing them together, thus causing the mount to be lowered until the outwardly bent inner ends 12 of the leading-in wires engage the inner face of the bulb, as shown in Fig. 2. The bulb is evacuated and tipped-off at 21. An annular protuberance 19 may be provided around the bulb to form an abutting shoulder for a lamp cap which can be located accurately with reference to the filament 14 and lens 18. In a modification, the ends of the leading-in wires are arcuate and diverge towards the point of intersection of the bulb and lens. The bulbs may be of the kind without a lens or of spherical form, with one leading-in wire 10 extended at 32 to engage a hollow tip 31 on the bulb.
Patent GB-700591-A (GB)
Title: Improvements in and relating to fluid pressure brakes for vehicles
IPC: B62L3/02
Filed: 1952-05-16
Abstract: 700,591. Cycle brakes. DUBOIS, E. D., and MORELLI, V. May 16, 1952. No. 12411/52. Class 136(1) [Also in Group XXXIV] A fluid pressure brake for cycles, motor-cycles or other vehicles comprises a compressor unit formed by a reciprocable piston 10 in a cylinder 1 which has a flexible cap 13 secured by a screw 12 to the piston 10 and by its peripheral edge to the cylinder head to enclose an annular chamber 4a, a hand lever 15 to depress the piston, a flexible tube 8 connecting the cylinder with a power applying unit mounted on a forked member 30 secured to a cross bar b on the wheel forks c, and formed of a central core 18 provided with ducts 19, 19a, the duct 19a being connected with the flexible tube 8 by a nipple 20, and ducts 19 opening at a central part of expansible membranes 23 secured to the core 18 by threaded caps 24, slides 27 reciprocable in the caps and having stems 28 projecting through apertures 29 in the caps, and brake shoe carrying levers 33 pivoted to the member 30 and carrying platens 34 at their upper ends which are held apart against the tension of a spring 37 by the stems 28. The upper end of the compressor cylinder 1 is tapered outwardly at its inner surface to form a re-filling mouth 5. The fluid, such as any oil, is fed into the cylinder 1 through a duct 9 which opens into the chamber 4a and is closed by a plug 9a. The core 18 has a refilling duct 21 closed by a plug 22.
Patent GB-580326-A (GB)
Title: Improvements in demagnetizing apparatus
IPC: H01F13/00
Filed: 1944-06-29
Abstract: 580,326. Demagnetizing apparatus. MAGNETIC ANALYSIS CORPORATION. June 29, 1944, No. 12425. Convention date, Nov. 1, 1943. [Class 35] In apparatus for demagnetizing a magnetized body, an A.C. demagnetizing field is produced and an A.C. potential established by induction from said field is rectified to produce an additional field acting on the body, and the rectifier output is controlled by a second rectifier. In the form shown, the rectifier 7 rectifying the current induced in coil 5 from coil 3 is controlled by adjusting rheostat 14 in the circuit of diode 12. The body 4 to be demagnetized is passed through superimposed coils 3, 5. Specifications 544,639 and 569,806 are referred to.
Patent GB-506095-A (GB)
Title: Process for the preparation of inoculation material
IPC: A61K39/00
Filed: 1938-04-26
Abstract: 506,095. Vaccines and the like. CHEMICAL WORKS. April 26, 1938, No. 12467. Convention date, May 8, 1937. [Class 81 (i)] Material for inoculation purposes is prepared by freeing cultures of bacteria &c. from water by exposure to a high vacuum at temperatures below 0‹ C. and killing the bacteria &c. in the dry state by treatment with anhydrous cell poisons or radiations of short wave length. The cultures are frozen rapidly by immersion in a mixture of carbon dioxide and ether, or liquid air, and dried in a vacuum of less than 0À001 mm. of mercury. The dehydrated organisms are then killed by treatment with anhydrous cell poisons such as hydrocyanic acid, hydrogen sulphide, carbon disulphide or formaldehyde, or by ultra violet light, the process being carried out preferably in a solvent, for example benzene, xylene, halogenated hydrocarbons or ether. The product after being freed from solvent may be taken up in physiological salt solution or in a non-aqueous oil or fat, e.g. paraffin oil, olive oil, wool fat. Example 1. Staphylococci after freezing and drying are killed by a solution of hydrocyanic acid in benzene. The dry product is suspended in a mixture of anhydrous wool fat and olive oil. Example 2. Streptococci, after separation from a culture, freezing and drying, are killed by means of a solution of formaldehyde in benzene. The product is dispersed in physiological salt. solution containing a trace of pyridine. Example 3. Dehydrated tubercle bacilli are killed by extraction with carbon disulphide. Example 4. A culture of tubercle bacilli obtained by culture in a collodion sac inserted in the abdonimal cavity of a guinea pig is treated according to the method of example 2. Example 5. The brain of a fowl infected with fowl plague virus is rubbed to a paste and treated according to examples 1-3.
Patent GB-125148-A (GB)
IPC: F41A1/06
Abstract: 125,148. Samaia, D. June 17, 1916 Ordnance design; chambers; muzzle-loading; breech mechanism; sound of discharge, modifying. -Consists of a mortar or like gun in which the projectile is thrown by a captive tubular slide closed at the rear and driven forwards in the barrel by a cartridge in a separate chamber. The gases escape through a silencing-device arranged around the barrel. As shown in Fig. 1, the projectile 11 is carried in a closed tube 4 which slides on an inner tube 3 fixed at the muzzle. When the tube 4 is driven forwards by the explosion of the charge 9, air is compressed in the space 14 between the inner tube and the barrel 1, and the tube 4 is thereby brought to rest. When the tube 4 is in its forward position, ports 13 leading to a series of silencing-chambers 5 are uncovered, the gases finally escaping through holes 16. The propelling cartridge 9 explodes into an air chamber 10, the size of which can be adjusted by a screw plug 17. The breech is closed by a rotary block 6 mounted in a lever 18. The firing-mechanism is of the slip-lock type comprising a sliding hammer 23 adapted to be drawn back by claws 25 pivoted on a slide which is retracted by a cord 27. The claws are pressed in to release the hammer when they are drawn into a tube 29. Reference has been directed by the Comptroller to Specification 124,779.
Patent GB-942014-A (GB)
Title: Improvements in or relating to vehicle washing apparatus
IPC: B60S3/06
Filed: 1962-04-02
Abstract: 942,014. Washing vehicles. R. E. COX. April 2, 1962, No. 12531/62. Addition to 877,016. Drawings to Specification. Heading B7J. Vehicle washing apparatus as claimed in Claim 1 or Claim 2 of the parent Specification is modified in that the or each rotatable brush is replaced by a cleaning device which comprises an elongated support, mounted in the associated frame so as to be non-rotatable relative to the frame when washing of a vehicle is being undertaken, and a strip or strips of cloth resiliently connected to the support by means of a resilient pad or pads or pneumatic cushion or cushions. In one embodiment two frames are each pivotable at adjacent ends about horizontal axes near ground level and operable by a common winch situated above the level of vehicles to be washed. In another embodiment a single frame is pivoted at one end near the ground level and operable by a winch also near ground level. The elongated support may be mounted non-rotatably in the frame or rotatably therein and provided with releasable locking means operable to prevent rotation when the apparatus is in use.
Patent GB-393741-A (GB)
Title: Improvements relating to amplifiers for photo-electric currents
IPC: H04N5/30
Filed: 1932-05-02
Abstract: 393,741. Valve amplifying circuits. ARDENNE, M. VON, 19, Jungfernstieg, Lichterfelde, Berlin. May 2, 1932, No. 12546. Convention date, May 2, 1931. [Class 40 (v).] To compensate less of high frequencies due to the capacity or a photo-electric cell 2 and an associated amplifying-valve 3, the cell is connected in series with a condenser 4, a resistance 1 and one or more chokes 8, 18, 28 to form the input circuit of the valve. The choke is between the grid and cathode of the valve, the cell between grid and anode, and the condenser between cathode and anode, and the cell is supplied from the same source of anode current as the valve. A plurality of chokes is used to obtain an irregularly distributed self-capacity. The Specification as open to public inspection under Sect. 91 comprises also inserting the cell in a grid circuit, in which oscillations are generated which are modulated by the cell, Figs. 6 and 7 (Cancelled) (not shown).
Patent GB-909132-A (GB)
Title: Improvements in or relating to weighing machines
IPC: G01G13/00
Filed: 1958-04-21
Abstract: 909,132. Electric weighing systems. MOSSE, R. W. E. July 8, 1959 [April 21, 1958], No. 12625/58. Class 40 (1). [Also in Group XVIII] A machine for weighing out pourable material comprises means for continuously controlling the flow of material to a container in accordance with the difference between the weight of the container and contents and the desired final weight, as measured by a differential transformer. Material flows from a hopper 1 through control blades 3 to a container 2 supported on a beam 4 which carries a counterweight 6. The beam unbalance is measured by the photoelectric transducer shown, or by a differential transformer with a moving core attached to the counterweight 6, and the windings carried by an auxiliary arm 14. A cam 17 is mounted on shaft 18 for rotation with a second cam 21 which controls the magnitude of the opening of the control blades 3. A continuously rotating motor 24 drives a shaft 20 through an electromagnetic clutch 25 which is controlled by the output of the differential transformer. Shaft 20 is constantly engaged by a brake 27 and drives shaft 18. Upon the container 2 being emptied from a previous weighing operation, counterweight 6 drops to its lowest position, and the differential transformer sends a signal to clutch 25. This causes the blades 3 to be opened and the container to be filled. The rotation of shaft 18 to open blades 3 depresses the transducer windings so that the blades no longer move. As the container 2 fills, counterweight 6 rises under the action of spring 7, thus raising the transducer core. Consequently shaft 18 rotates, the blades move in accordance with the profile of cam 21, and the transducer windings follow the core. Any desired rate of flow programme may be obtained by suitable choice of the profiles of cams 17 and 21 and the characteristics of spring 7. Eventually spring 7 acts against a stop 8 so that the transducer core will not move until container 2 is balanced, the full counterweight load then being lifted. The rate of flow is constant during this period. At balance the transducer core suddenly lifts and shaft 18 rotates until the transducer output is again zero, this action causing blades 3 to be shut and flow of material stopped.
Patent GB-1406332-A (GB)
Title: Portable x-ray spectrometer
IPC: G01N23/22
Filed: 1973-03-16
Abstract: 1406332 X-ray tubes SOC NATIONALE DES PETROLES D'AQUITAINE 16 March 1973 [17 March 1972] 12787/73 Heading H1D [Also in Division H5] A portable X-ray spectrometer includes a casing which is capable of being evacuated to a pressure of 10<SP>-1</SP> to 10<SP>-3</SP> torr, and contains a sample holder; a glow discharge arrangement for producing electrons which may be incident either directly on the sample, or on a target the X-rays and secondary electrons from which are incident on the sample; a diffraction crystal; a goniometer and detector; a vacuum pump; a motor for driving the pump; and a low powered source of electricity. The glow - discharge arrangement may include a cathode in the form of a disc or ring, to which 5 kV. is applied, and a grid anode, the low working voltage permitting X-ray shielding to be largely dispersed with, and the use of laminated glass fibre as the material of the casing cover. The vacuum pump motor may be of self-ignition two-stroke type to minimize electrical interference, and may be employed also to drive a generator providing the spectrometer supply. As shown, the casing includes covers 2 and 3 detachably sealed in grooves in the base 1, which latter is provided with sealed apertures through which pass shafts for adjusting the diffraction crystal 17, the goniometer 19, and the specimen holder 22, and leads for the detector 21 and glow discharge arrangement 16. The aperture 11 permits connection to a vacuum pump.
Patent GB-603441-A (GB)
Title: Containers for delivering liquid in small quantities for removing stains
IPC: B65D47/42
Filed: 1945-05-23
Abstract: 603,441. Reservoir pads. HUMBERT, P. G. May 23, 1945, No. 12850. Convention date, Nov. 13, 1942. [Class 19] A container for delivering liquids in small quantities for removing stains has a removable closure device comprising a cap A provided with an inverted truncated cone-shaped part E, the base of which is formed with an opening to provide a seating for a disc valve D having a freely-movable valve rod B, the arrangement being such that when the container is inverted a small quantity of liquid passes to a rubbing cloth H fitted over the cap A. The cap A and cloth H are held on the rack of the container by a screw-on collar G over which is screwed a stopper K provided with a portion L which bears on the cloth H.