baber/WOPTO huggingface dataset:
Patent GB-1126356-A (GB)
Title: Instrument for measuring and recording the boundary surface tension and viscosity of a liquid
Inventor: SUCKER CHRISTIAN
IPC: G01N13/02
Filed: 1965-10-08
Abstract: 1,126,356. Measuring surface tension and viscosity of liquids, electrically. FARBENFABRIKEN BAYER A. G. Oct. 8, 1965 [Oct. 10, 1964], No.42811/65. Heading G1N. An instrument for measuring and recording the boundary surface properties (e.g. surface tension) of liquids comprises a measuring member 2, (Fig. 1) consisting of a ring, adapted to be immersed in a liquid and withdrawn therefrom with a liquid film or sheet 1 adhering thereto, and suspended at one end of a lever 3 which is fulcrummed on a torsion wire 4. A tensile force exerted by the liquid film on the member 2 as it is withdrawn causes a twisting of the torsion wire. Fixed perpendicularly to the lever 3 and to the torsion wire is a second lever 5 carrying a taring weight 5a and a ferromagnetic plate 7 which is movable in an air gap between coils 6 as the torsion wire twists on load. The liquid container is mounted on a table 11 which is raised and lowered by an electric motor to immerse and withdraw the element 2. The coils are connected in a bridge circuit fed with high frequency A. C. and the unbalance output thereof due to the force is amplified and recorded in a recorder 8. The table is lowered to a position, determined by experiment, just before the breaking point of the liquid film whereat the maximum force is reached. Switching arrangements are provided whereby the motor is reversed automatically and the operation repeated so that the change in the maximum force as a function of time is continuously recorded. The table may be arranged for rotary or oscillatory motion and by using an additional force measuring system (not described) the viscosity or vibration viscosity of the liquid may be obtained. The torsion wire dimensions and material may be chosen so that the measuring member 2 is capable of vibrating after initial excitation in air and then in the liquid. Thus changes in the surface tension which occur very quickly can be recorded, and in this way the instrument functions as a boundary surface viscometer for establishing the Trouton viscosity.
Patent GB-430467-A (GB)
Abstract: 430,467. Colour photography. OPTICOLOR AKT.-GES., Glarus, Switzerland. Nov. 9, 1934, No. 32365. Convention date, Nov. 10, 1933. Addition to 421,084. [Class 98 (ii)] The apparatus described in the parent Specification is modified by arranging the reflecting surfaces so that the image of the aperture is seen several times from each film but the aperture and its images are not collinear. The mirrors may be so arranged that the aperture and its images lie at the apices of a triangle. If desired, the objective may be screened so that it is only visible at the films by reflection. Pairs of plane mirrors parallel to the optical axis and inclined to one another at a large angle may be used. In the form shown in Fig. 1 the original and copy films are mounted on opposite sides of an objective 3 having a diaphragm 8 and pairs of mirrors 10 and 13 are placed one pair on each side of the objective, the corresponding mirrors on opposite sides being parallel. The central image is copied by the objective directly and the lateral images by the parallel pairs of mirrors. If the mirrors of each pair are at 120‹ to one another only two images of the objective aperture will be formed and in order to influence the diffusions between adjacent filter strips an asymmetrical diaphragm aperture may be used in the objective, e.g. as shown in Fig. 3 in which 15 is the diaphragm aperture in the form of a parallelogram, 15<1> and 15<IV> being the images thereof in the mirrors 12 and 13, the dotted lines indicating the edges of the zones of the tricolour filter. If the mirrors on each side of the objective are inclined at 90‹ to one another, a screen may be inserted on each side of the objective to cut off the direct light, the three images formed by the mirrors serving for copying the three filter zones. Alternatively, the mirrors may be inclined to the optical axis. As shown in Fig. 4, two sets of three mirrors 17, 20, 23, 26 are arranged on opposite sides of the objective 3, the corresponding mirrors in each set being parallel and diaphragms 29-32 being used to cut off the direct light.
Patent GB-991816-A (GB)
Title: Process for the preparation of gluconates of trace-metals
Inventor: SUCK PIERRE
IPC: C07C51/41
Filed: 1962-11-14
Abstract: Gluconates of trace-metals (i.e. metals which are essential for the lives of plants and animals, but which are required in extremely small quantity) are prepared by reacting in aqueous solution the sulphate of the trace-metal with a slight excess of barium gluconate, removing the precipitated barium sulphate by filtration and isolating the desired gluconate by crystallization. The gluconate solution may be added in two portions, the second portion being added after a period of time.
Patent GB-1199210-A (GB)
Title: Treatment of Metal Chlorides in Fluidized Beds
IPC: C22B1/10
Filed: 1968-09-11
Abstract: 1,199,210. Fluidized bed reactors; distributer hearths. FALCONBRIDGE NICKEL MINES Ltd. 11 Sept., 1968 [14 Sept., 1967], No. 43116/68. Heading F4B. [Also in Division C1]  In a fluidized bed reactor in which metal oxides are produced by supplying the chloride to a bed 10 of oxide particles fluidized by hot combustion gases produced within the reactor from an explosive mixture of fuel gas and oxygen containing gas supplied through conduits 19, compressors 20 and 21 supply the fuel gas and air to the header 18 and a duct 15 supplies chloride particles pneumatically through the reactor hearth 13. The chloride may also be fed down pipe 23 or as a sprayed aqueous solution through pipe 24. Discharge pipe 16 feeds a screen 26 from which undersize particles are recycled to the reactor through pipe 27. The gaseous combustible mixture is supplied at a temperature below the ignition temperature and at a velocity above the flame velocity. These conditions are assisted by spacing the header from the reactor, or by restriction plates in the bottom of the tubes (Figs. 3 and 4). A further modification (Figs. 5 and 6) has a header in a the form of a conduit (39) at one side supplying branch conduits (41) at right-angles thereto from which supply tubes (44) extend in pairs. A final modification, Fig. 7, shows variations of the supply tubes 49, tube A having a cap 51 with side ports 52, tube B an upwardly tapering cross-section 53, tube C extending above the hearth and tube D having a downwardly tapering cross-section 55.
Patent GB-1100178-A (GB)
Title: Electrical switches
Inventor: VEALE ALFRED WILLIAM JOHN
IPC: H01H25/06
Filed: 1965-10-12
Abstract: 1,100,178. Mechanical switches; retractive switches. FORD MOTOR CO. Ltd. 12 Oct., 1965, No. 43155/65. Heading HlN. A switch for controlling several circuits in a motor vehicle comprises a rotatable cylinder 15 carrying contacts 16-20 continuously engaging a power conductor 13 on a fixed cylinder 12 and selectively engageable in different rotary positions of cylinder 15 with contact strips on the inside of a fixed cylinder 1 and connected to terminals 5-10. Axial movement of cylinder 15 against a restoring spring 21 causes temporary connection of contact 20 to terminal 11 for starting the vehicle. Cylinder 15 also is movable upwardly as shown to energize parking lights. The contact strips (103)-(111) for terminals 3-11 have different lengths (Fig. 3, not shown). A second rotatable cylinder 22 carrying contacts 27, 28, 23, bridged by a conductor 26 is movable axially to engage contact 23 with power conductor 13 to supply current via rings 24, 25, and contacts 29, 30, in cylinder 15 to terminals 3 and 4. Further axial movement of cylinder 22 is possible so as to selectively supply power to terminals 3 and/or 4 in combination with the supply of power to selected terminals 5 to 11 according to the rotary and axial positions of cylinder 15. The moving contacts, e.g. 16-20, are cylindrical (Fig. 2, not shown), with a rubber body portion and electrically connected brass end rings (32).
Patent GB-432529-A (GB)
Abstract: 432,529. Sewing - machines. FAIRWEATHER, W. C., 65, Chancery Lane, London.-(Singer Manufacturing Co. ; Elizabeth, New Jersey, U.S.A.) March 16, 1935, No. 8224. [Class 112] The presser-foot carrying bar of a sewing-machine is periodically lifted by a cam on a vibratory arm linked to a crank on a rotary shaft which also reciprocates the needle bar. The rotary shaft 4 has a balanced crank arm 5 having a crank pin 6 with an offset portion 7 to a pin on which a link 8 is connected, the opposite end of the link being connected to a sleeve 9 on the needle bar 10. Journalled on the crank pin 6 is one end of a take up lever 18 having a thread eye 19, an intermediate point 20 of the lever being connected to a control arm 21 pivoted on a horizontal pin 23. The boss of the arm 21 has a cam engaging beneath a plate 30 on a sleeve 29 adjustably secured to the presser foot carrying-bar 12. This bar is hollowed to receive a spring 16, abutting against an adjustable cap 14, by which the plate 30 is kept in contact with the cam.
Patent GB-1530130-A (GB)
Title: Liquid fuel pumping apparatus
IPC: F02D1/18
Filed: 1975-10-22
Abstract: 1530130 Fluid-pressure servomotor systems LUCAS INDUSTRIES Ltd 22 Oct 1975 43282/75 Heading G3P [Also in Division F1] A resiliently loaded piston 38 subjected to output pressure in accordance with engine speed from a fuel feed pump 30 to vary the timing of a fuel-injection pump 13, 14 has the action of its loading means modified by a second resiliently loaded piston 43 which is also subjected to the output pressure through a throttle valve 24. The latter is arranged so that pressure in a conduit 45 is substantially equal to the pressure in a conduit 41 when a low quantity of fuel is to be provided. A spring 44 is thus able to reduce the effect of a spring 40 and low speed advance of injection timing takes place until the piston 43 has completed its travel. Beyond this point and at maximum fuel setting only the spring 40 and the pressure in the conduit 41 determine the timing, the conduit 45 being at drain pressure during maximum fuel setting. The valve 24 is a rotary valve with a helical land 47 and is connected with parts 20 leading to the engine injections by way of the injection pump 13, 14 and passages 22, 12 and 19.
Patent GB-1164129-A (GB)
Title: Electric Soldering Irons
Inventor: LAMB RICHARD TERRY
IPC: B23K3/03
Filed: 1966-09-28
Abstract: 1,164,129. Soldering irons. ADCOLA PRODUCTS Ltd. 7 Aug., 1967 [28 Sept., 1966], No. 43394/66. Heading B3R. An electric soldering iron comprises a bit 1 located in a holder 2, the bit being angularly adjustably fixed in a casing 19, 16 by a wing nut 22. An electric heating coil 11 wound around the holder is connected to a terminal block 28, secured in a split plastics handle 4, by a bolt 30.
Patent GB-1513129-A (GB)
Title: Radio navigation receiver
IPC: G01S1/04
Filed: 1974-10-08
Abstract: 1513129 Doppler beacon STANDARD TELEPHONES & CABLES Ltd 30 Sept 1975 [8 Oct 1974] 43516/74 Heading H4D In a Doppler beacon utilizing an array of antennae sequential energized to simulate a moving source and produce a Doppler shift at a remote receiver corresponding to the bearing of the receiver with respect to the line of the array-e.g. as described in Specifications 1,225,190, and 1,234,541-errors may be produced at the receiver due to (a) multipath components and (b) transients in the receiver filter as the energization sequence finishes and/or starts. To mitigate these errors the Doppler frequency is tracked by a filter 4 having a variable frequency, continuously running, oscillator 4B controlled by a feedback loop from a sampler and frequency discriminator 4A to operate at a mulitiple, e.g. 4 times of the frequency being tracked. The feedback loop also includes a sample and hold circuit 5 which is controlled (6) to hold the control input to the oscillator 4B at the value pertaining at the end of the previous scan for an initial, e.g. 50% portion of the sequence. The frequency of the oscillator is monitored as the Doppler frequency. The first 25% of the Doppler frequency may be blocked (dotted box) to further reduce errors.
Patent GB-1144165-A (GB)
Title: Improvements in or relating to telephone dialling arrangements
Inventor: COUSINS RICHARD GEOFFREY
IPC: H04M1/276
Filed: 1965-10-15
Abstract: 1,144,165. Repertory diallers. TELEPHONE MFG. CO. Ltd. 27 Sept., 1966 [15 Oct., 1965], No. 43841/65. Heading G5R. [Also in Division H4] A magnetic tape in a repertory dialler arranged for connection to a conventional telephone subset stores a telephone number in each of a plurality of longitudinal tracks spaced across its width, the action of a number select key mechanically marks a position in the path of a reading head to stop it at the particular track as the head moves across the width of the tape, whereupon the tape is driven to effect read-out of the number which is stored as a high frequency signal and is used to operate impulsing contacts. An operated number select key 1 inserts the bifurcated end 36 of a plate 4 into the path of a stop plate 35 carried on a pin 28 which is pushed along the guide trough 6 by the arm 27 of the reading head carriage 20, which moves on guide rails 33, 34. The carriage driving motor is started by the contacts 14 of the select key latch 10 and stopped by the off-normal contacts of the tape drive which is driven forward when the carriage reaches the marked position and the contact 26 engages the particular raised contact 15. The head 21 readsoff a 500 c/s signal, which is amplified to operate impulsing contacts additional to the subset ones, and the tape on reaching its end position unlatches the select key (Fig. 1A, not shown) and the unoperated latch contacts 14 release a relay to reverse the tape drive which is stopped at rest by on-normal contacts. The relay operated by the operated latch contacts short circuits the transmitter and receiver of the conventional telephone subset to which the repertory dialler is connected. Numbers are recorded upon a track selected by a select key by operating a record key which energizes a record head and connects the impulsing contacts of the subset to an oscillator which supplies a 500 c/s burst to the head for each opening of the impulsing contacts. The off-normal contacts of the sub-set dial drive the tape forwards. A 2000 c/s signal is used for erazing. Reference, has been directed by the Comptroller to Specification 1,094,544.
Patent GB-1036616-A (GB)
Title: Apparatus for detecting a match or non-match
IPC: H03K3/315
Filed: 1963-11-07
Abstract: 1,036,616. Tunnel-diode circuits. SPERRY RAND CORPORATION. Nov. 7, 1963 [Nov. 19, 1962], No. 44041/63. Heading H3T. [Also in Division G4] In a system for interrogating successive stages of a memory store to establish match or absence of match with an externally applied word (see Division G4), match or absence of match in each stage is indicated by the state of a tunnel-diode circuit, the tunnel diode circuits being interrogated in turn by pulses applied thereto from a strip transmission line. An initial positive pulse at terminal 88 sets all tunnel diodes to the same low-voltage state. In the event of absence of match a negative pulse at terminal 86 switches the corresponding tunnel diode to its high-voltage state. The voltage at the cathode of the tunnel diode is then sufficient to bring the backward diode 92 into conduction or very close thereto, so that, on the arrival of a positive interrogating pulse from the transmission line, the pulse is absorbed by the lowimpedance of the backward diode and the tunnel diode is simultaneously restored to its lowvoltage state, the backward diode thereafter presenting a high impedance to subsequent interrogating pulses and a positive output from terminal 90 indicating that the corresponding stage had previously stored the absence-ofmatch condition. In Fig. 3 (not shown) the polarities of the diodes and supply are reversed while the polarities of the input and output pulses are unaltered; in this ease, however, the tunnel diodes are initially set to the high-voltage state and absence of match effects a transfer to the low-voltage state.
Patent GB-1341974-A (GB)
Title: Fluorine-containing polymers
IPC: C08G65/22
Filed: 1971-09-22
Abstract: 1341974 Organofluorine polymers E I DU PONT DE NEMOURS & CO 22 Sept 1971 [22 Sept 1970] 44246/71 Heading C3R [Also in Divisions C2 and C4-C5] A novel solution in an ethylene or polyethylene glycol ether of a compound of the formula  is further reacted with hexafluoropropylene oxide at a temperature above the melting point of the ether solvent to form a difunctional polymer of the formula which on heating to 105‹ to 155‹ C. forms a difunctional polymer of the formula (wherein m and p are integers, the stun of which is 2 to 50). The -COF groups of the latter compound may be subsequently converted to carboxylic (acid and salt), nitrile, triazinyl, hydrazide, ester, polyester, amide, polyamide, amidine and polyamidine groups. In examples caesium fluoride and oxalyl fluoride are dissolved in tetraglyme and further reacted with hexafluoropropylene oxide to yield after subsequent warming a compound of the formula which yields on reaction with caesium fluoride in a tetraglyme medium a solution of compound of the first formula above from which may be prepared by reaction with appropriate quantities of hexafluoropropylene oxide difunctional polymers in which the sum of m and p is variously 16À2 (M.W. 3140), 31 (M.W. 5600) and 50 (M.W. 8764). Uses.-Elastomers, plastics, inert solvents, heat-resistant fluids for lubricating and heattransfer applications.
Patent GB-1411245-A (GB)
IPC: C07C239/00
Filed: 1972-09-26
Abstract: 1411245 Urea synthesis I MAVROVIC 26 Sept 1972 [19 Oct 1971] 44310/72 Heading C2C Urea is synthesized in a process wherein fluid NH 3  and fluid C0 2  are contacted at a pressure of 130 to 400 kg/cm<SP>2</SP> and a temperature of 160 C. to 220 C. in a urea synthesis reactor to form a urea synthesis mixture containing ammonium carbamate and urea, which comprises charging reactor feed streams of fluid NH 3  and fluid C0 2  to said reactor in an NH 3 /C0 2  overall molar ratio of 2.7 : 1 to 7 : 1 and an H 2 0/C0 2  overall molar ratio of from 0 : 1 to 1.5 1, and supplying heat to said reactor to provide endothermic heat required to produce urea from ammonium carbamate. The process may be conducted substantially adiabatically using a reactor having a conduit positioned therein, by charging from 5 to 100 mol. per cent of each of a reactor feed stream of fluid NH 3  and fluid CO 2 , to said conduit to form a mixture in countercurrent indirect heat exchange with the urea synthesis mixture contained in the reactor, or the process may be conducted isothermally using a reactor having a heat exchanger immersed into the reaction mixture, by supplying a heated heat exchange medium to the heat exchanger to supply heat to the synthesis mixture in indirect heat exchange relation to the synthesis mixture charged proximate the bottom of the reactor flowing through the reactor. In either case, the fluid NH 3  and fluid C0 2  may be charged to a heat exchanger external to the urea synthesis reactor, prior to their passage to the reactor, to remove heat of reaction evolved from the reaction of NH 3  and C0 2 . Alternatively, the reaction may be conducted by charging fluid NH 3 , fluid C0 2  and an aqueous solution comprising ammonium carbamate to a lower portion of the reactor having an indirect heat exchange means therein which extends from a lower portion to an upper portion of the reactor, the heat exchange means including a heat exchange medium, imparting heat to the reaction mixture at the lower portion of the reactor, and passing the resulting reaction mixture and the heat exchange medium to the upper portion of the reactor to transfer heat from the heat exchange medium to the reaction mixture.
Patent GB-1120433-A (GB)
Title: Position indicator
Inventor: ATKIN ROBERT WILLIAM
IPC: H01H9/16
Filed: 1964-10-30
Abstract: 1,120,433. Indicating apparatus. ENGLISH ELECTRIC CO. Ltd. Oct. 26, 1965 [Oct. 30, 1964] No. 44386/ 64. Heading G1J. [Also in Division H1] An indicating device for an electrical energy regulator, e.g. a thermal switch for controlling the input of an electric cooker hotplate, or a rheostat, comprises a fixed transparent disc 15, Fig. 2, mounted in a panel 17 and carrying painted numerals 1-9, or other markers, and a disc 18 behind disc 15 rotating with a shaft 13 (Fig. 1) to control the hotplate input. The surface of disc 18 facing disc 15 is painted the same colour as numerals 1-9 except for a contrasting fluorescent radial strip 19 so that any one selected numeral can be made visible as shown. An opaque section 16 of disc 15, which may have transparent lettering, indicates the "OFF" position. In a modification, disc 18 is transparent except for strip 19 and a face (11A of Fig. 1) fixed plate (11) is painted the same colour as the markers.
Patent GB-968002-A (GB)
Title: Fuel element loading and unloading apparatus for a nuclear reactor
IPC: G21C19/115
Filed: 1961-12-12
Abstract: 968, 002. Fuelling reactors. SULZER FRERES S. A. Dec. 12, 1961 [Dec. 21, 1960], No. 44511/61. Heading G6C. Apparatus for loading and unloading a reactor with fuel elements which are secured by their upper ends in the reactor core, is situated beneath the core and comprises a water-filled tank 4 supported by rollers 3 on a travelling gantry 2, the tank containing an hydraulically-operated telescopic elevator 6 having a fuel element gripper 16 at its upper end. In use, the tank 4 is moved to the required position beneath the reactor and the elevator 6 is raised to engage the fuel element. Mechanism (not shown) releases the fuel element from the core whereafter the element may be lowered by the elevator into the tank and the tank transported by the gantry 2 to a point where the fuel element is transferred to a conveyor. In another construction (Figs. 2-4, not shown) the gripper comprises spring-loaded balls which engage a recess in the fuel element casing and is carried by a nut guided for vertical movement in the tank and operated by a vertical threaded shaft driven by an electric motor. In a further construction (Figs. 5-8, not shown) the gripper is vertically movable by a chain-driven mechanism situated within the tank and the latter is pivotably mounted between its ends so that it may be tilted to facilitate removal therefrom of the fuel element, In this construction the apparatus is carried by an eccentrically mounted rotatable cover at the bottom of the reactor chamber.
Patent GB-1245856-A (GB)
Title: Improvements in and relating to electron beam welding
IPC: B23Q35/129
Filed: 1969-09-10
Abstract: 1,245,856. Electron beam welding apparatus. WELDING RESEARCH Inc. 10 Sept., 1969 [18 Dec., 1968], No. 44626/69. Heading H1D. [Also in Division B3] The beam of an electron beam welding apparatus is periodically scanned across the seam 37, Fig. 1, which is being welded, and secondary electrons emitted from the workpieces 9 or from the seam are collected by an electrode 7 and fed to an oscilloscope 15 and/or to a recording oscillograph 14 to indicate the position of the beam relative to the seam. The scanning waveform may be derived from a signal generator 21 which can produce a sinusoidal, square, or triangular waveform which is amplified and fed to the deflection coil 6 of the welding apparatus and to the oscilloscope 15. A switch 30 may be arranged to short-circuit the generator 21 periodically; in each such period the beam will adopt its rest position and the oscillograph 15 will display a strobe spot (Fig. 2, not shown) indicative of the rest position of the beam on the curve which indicates the position of the seam. As an alternative to the switch 30, a pair of oppositely poled Zener diodes may be connected in series between terminals 22 and 25 (Fig. 4, not shown), the effect being to produce a series of triangular waves of alternate polarity separated by zero voltage intervals.