baber/WOPTO huggingface dataset:
Patent GB-349888-A (GB)
Abstract: 349,888. Illuminating means for taximeters. SEABROOK, H., 32, Bedford Street, Strand, London.- (Kienzle Taxameter-u-Apparate Akt.- Ges. ; Villigen, Schwarzwald, Germany.) Oct. 21, 1930, No. 31614. [Class 106 (iii).] The flag 2 comprises a frame 4 having spring contacts 6, 7 holding the lamp 5 enclosed within the transparent, e.g. celluloid, lettered covers 9, 10, the contact 6 being earthed and the contact 7 connected by the wire 8 to the conducting member 16 on the insulating ring 14 rotatable with the flag 2 and which in the vertical, disengaged position of the flag is positioned so that the conducting member 16 contacts with the spring contact stud 15 connected through the wire 18, spring contact 19, contact 21, lug 22, wire 23, spring contact 24, wire 25 to the plug coupling 26 for the battery to light the lamp 5 and illuminate the flag. Rotation of the flag to the disengaged position rotates the cam 29, integral with the spindle 24 rotating with the flag, to rotate the lever 30 and thus through the pin and slot connection 48, 49 the double armed lever 31, 31<1> pivoted at 47 to cause the finger 32 on the arm 31<1> to press the contacts 24, 27 together to effect through the wire 28 the illumination of the lamp 39 for illuminating the dial of the taximeter through the pane of glass 41. During this rotation of the flag the conducting member 16 is moved out of contact with the spring contact 15 and the lamp 5 is extinguished. Continued rotation of the flag restores apparatus to normal, extinguishing lamp 39 and illuminating lamp 5.
Patent GB-968648-A (GB)
Title: Improvements in or relating to sheet-fed rotary printing presses for multi-colour printing
IPC: B41F11/00
Filed: 1962-09-14
Abstract: 968,648. Rotary printing apparatus. SCHNELLPRESSENFABRIK A.G. HEIDELBERG. Sept. 14, 1962 [March 27, 1692], No. 35073/62. Heading B6C. A rotary letterpress machine for direct or offset multi-colour printing comprises at least two printing units arranged in series, the cylinders and inking arrangements of the units being of identical construction and the units being so arranged that they are symmetrically disposed with respect to an operating platform therebetween, and are connected by gripper chains passing beneath said platform which is located below the level of the plate, blanket and impression cylinders. In the embodiment shown, an operator stands on the platform 45 and controls the printing of sheets 2 between impression cylinders 8 and 31 and relief plate cylinders 10 and 33 respectively. The sheets are fed along a table 3 by a feed device 1, are transferred by cylinders 6 and 14 via the impression cylinder 8 to grippers 15 on endless chains 16, and are transferred to endless delivery chains 41 by cylinders 29, 37, and 39 via impression cylinder 31. The apparatus may be converted for offset printing.
Patent GB-282795-A (GB)
Title: Improvements in and relating to the manufacture of objects from zirconium
IPC: C04B35/482
Filed: 1927-12-28
Abstract: 282,795. Deutsche Gold-und Silber- Scheideanstalt vorm. Roessler. Dec. 27, 1926, [Convention date]. Refractory substances containing compounds of zirconium and thorium.-Objects are made from zirconia by first mixing, in the dry state, zirconia with small amounts of hydrolyzable substances such as zirconium tetrachloride, aluminium chloride, magnesium chloride &c., mixing into a plastic mass with water and finally shaping and burning. Other substances such as thoria may be added.
Patent GB-865053-A (GB)
Title: Improvements in or relating to bandpass electric filters
IPC: H03H9/62
Filed: 1958-10-31
Abstract: 865,053. Electromechanical filters; filter circuits. GENERAL ELECTRIC CO. Ltd., and SNOW, A. Oct. 29, 1959 [Oct. 31, 1958], No. 35105/58. Class 40(8) A bandpass electric filter of the kind comprising an elongated member 1 of magnetostrictive material, e.g. a tube of nickel-zinc ferrite, and input 8 and output 9 coils spaced apart along the member, is provided with a further coil 10 which is connected in circuit, e.g. in series, with the output coil 9 and which is magnetically coupled to the input coil 8, e.g. as shown in Fig. 3, so as to buck out direct magnetic coupling between the input and output coils 8 and 9. The input coil 8 and the further coil 10, which together form a single coil assembly, are located around one end of the tube 1 and the output coil 9 is located around the other end of the tube. The ferrite tube 1 is permanently magnetized so that the lines of magnetic force surround the longtitudinal axis of the tube 1, an oscillating input signal causing the tube 1 to vibrate torsionally. The length of the tube 1 is so chosen that it acts as a half-wave resonator at a frequency in the region of the passband of the filter. The width of the passband can be adjusted by the screws 7 which change the pressure applied to the ends of the tube 1. The filter can be used to select component signals in a narrow band of frequencies present in an electric signal covering a wider band supplied by a radio receiver. In this case the spacing of the output coil 9 and the assembly of the input and further coils 8 and 10 is adjusted so that there is minimum coupling between the input and output coils at frequencies outside the desired passband, e.g. by applying a signal having a random waveform to the terminal wires 11 and adjusting the positions of the coils until there is a minimum noise signal developed at the terminal wires 12. The construction of the filter is described in detail in Specification 865,052. The filter has a plurality of passbands each corresponding to a resonance of the tube 1. In order to prevent the filter passing signals at frequencies outside the desired passband it is preceded by a bandpass filter having a wide passband which contains the desired passband but not the unwanted passbands, e.g. a coil-capacitor filter. If a plurality of filters of the present invention are arranged to select from an electric signal component signals lying in contiguous bands of frequencies, they can all be supplied in parallel by the wideband filter. If the device, e.g. an amplifier, supplying the electric signal to the plurality of filters has the appropriate filter characteristic the wideband filter is unnecessary.
Patent GB-968220-A (GB)
Title: Improvements in or relating to swaging processes
IPC: B21J13/02
Filed: 1961-09-29
Abstract: 968,220. Swaging. GEBR. BOHLER & CO. A.G. Sept. 29, 1961 [Oct. 22, 1960], No. 35113/61. Heading B3H. A swaging process, particularly for ingots 1 of alloys of non-ferrous metal or steel having a high resistance to deformation, uses a pair of swaging dies 2, 3 with angular contact surfaces whose included angle lies between 130 degrees and 140 degrees, preferably 135 degrees. Each die then provides two pressure surfaces. The workpiece may be of circular or polygonal crosssection and may be turned through 45 or 90 degrees between successive blows. Examples are given for swaging ingots of Ni-Cr and Ni-Cr.Co steel.
Patent GB-1192568-A (GB)
Title: Improvements in or relating to the Sealing of Bearings
IPC: F16C11/06
Filed: 1967-08-01
Abstract: 1,192,568. Bearings. SKF KUGELLAGERFABRIKEN G.m.b.H. 1 Aug., 1967 [2 Aug., 1966], No 35238/67. Heading F2A. A self-aligning bearing comprises an outer ring 5, an inner ring 8, an annular member 12 having a limb 13 attached to the inner ring, and a resilient seal 10 compressed between the member 12 and a disc 9 contacting both rings. A layer 7 of low friction material is provided between the rings. Member 12 comprises a radial portion 18 connecting axial limb 13 and flange 14. Disc 9 has a bead 11 engaging an axial flange 19 and the end face of outer ring 5.
Patent GB-848688-A (GB)
Title: Process and apparatus for producing steel yarns
IPC: D02G1/10
Filed: 1956-11-19
Abstract: 848,688. Crimping yarn; yarn-spinning and twisting machines. DEERING MILLIKEN RESEARCH CORPORATION. Nov. 19, 1956 [Nov. 18, 1955], No. 35341/56. Classes 120(2) and 120(3). Yarn is made into stretch yarn by heating and passage, under tension, through an acutely angular path about an edge of a blade member which is in contact with a heat-dissipating member serving to keep the temperature of the blade to a value such that the yarn is cooled by the blade as it passes about the edge. As shown in Fig. 1, a nylon yarn end 12 passes from a package 10, through a guide 14 and tension regulator 16, over a convex surface 26 of a heater strip 18 which is heated directly by passage of electric current therethrough, about the edge of a blade member 38 carried by a holding device 40, thence in contact with the undersurface of member 38. over guide roller 42 to a transporting device 44, comprising driven rolls 46, 48, about an idler roll 50, through a guide 52 and is collected by ring- and-spindle array 54. The device 40, Figs. 2 and 3, comprises a clip 56 of resilient sheet material, e.g. spring steel, having ears 58, 60 and 62, 64 which engage the strip 18 and to which is attached a heat-dissipating plate 66 of material having a high specific thermal conductivity and bifurcated to form legs 74 and 76, which act as cooling fins, and a slot 78 through which yarn passes as it engages blade 38 seated in an indentation 72. A modification, Figs. 4 and 6, comprises a heater strip 80 embraced by ears 84, 85 and 86, 87, of a clip 82 to which is attached a heat-dissipating member 92 comprising exposed legs 94 and 96 and a slot 102 through which yarn passes as it engages a blade 100 secured by clip 82 in an indentation 98. A conventional spinning or twisting frame may be modified: thus, rolls 46, 48 may be normal yarn feed means and/or the feed rolls may constitute the delivery pair of the drawing rollers, a common heater strip (extending the length of the frame) may serve a multiplicity of blades, holding devices and tension regulators, and guide means are added. Specification 761,084 is referred to.
Patent GB-807632-A (GB)
Title: Transistor amplifier with frequency bandwidth stabilization
IPC: H03G3/30
Filed: 1956-11-20
Abstract: 807,632. Transistor amplifying circuits. TEXAS INSTRUMENTS Inc. Nov. 20, 1956, [Jan. 10, 1956], No. 35489/56. Class 40 (6). A transistor amplifier stage having automatic gain control applied thereto comprises a unilaterally conductive device connected in parallel with the input electrodes and responsive to changes in the automatic gain control potential so as to decrease the apparent input impedance of the transistor as the gain control potential increases whereby the bandwidth of the amplifier remains more nearly constant. Increases in the gain control potential applied to the base of the transistor in the circuit shown cause the input impedance of the transistor to increase and the bandwidth to change. A diode 19 is accordingly connected in series with a blocking capacitor 22 and a capacitor 21 between the input electrodes. As the gain control potential increases the bias applied to the diode from the emitter electrode decreases and the diode conducts to reduce the apparent input impedance of the circuit. The bias applied to the diode from a potentiometer 23, 24 is such that the diode does not become conductive until the input impedance of the transistor becomes excessive. The value of capacitor 21 is so chosen that the detuning of the input coupling circuit is corrected. Resistor 20 may be replaced by a choke. The transistor may be of PNP, PNIP or complementary type and in grounded emitter, grounded base or grounded collector configuration. The input coupling circuit may be single or double tuned or of " T " or " twin T " form.
Patent GB-1470927-A (GB)
Title: Steering systems for guided vehilces
IPC: B62D1/26
Filed: 1975-08-28
Abstract: 1470927 Steering vehicles by engagement with guide rails TRANSPORTS RECHERCHES ETUDES ET GROUPEMENT D'INTERET ECONOMIQUE 28 Aug 1975 [13 Sept 1974] 35555/75 Heading B7H A steering system for a vehicle comprises steering gear 7, a detector 8 for guiding the vehicle along a guidance reference member, and an actuating linkage 5 for steering a vehicle axle 4 in response to operation of the steering gear 7 or detector 8 which are coupled to the linkage 5 by a coupling device 6 so that the vehicle can either use the detector 8 to follow the reference member or alternatively be steered by the gear 7 in the absence of such a reference member. The device 6 comprises a member 16 connected to the linkage 5 to move the latter in accordance with the rotation of the member 16 about a first axis 19; first and second guide bars 20, 21 each connected to the member 16 with its axis extending through the first axis 19 transversely thereto; and first and second elements 22, 23 mounted for movement along the bars 20, 21 respectively and mechanically linked by rods 15, 13 to the gear 7 and detector 8 respectively, the gear 7 and detector 8 constituting input devices of the coupling device 6. Each element 22, 23 is movable along its bar 20, 21 between a first position (element 23 in Fig. 3) remote from axis 19 so that displacement of the element transversely of its bar by its input device causes rotation of member 16 about axis 19, and a second position (element 22 in Fig. 3) on the axis 19 so that the element cannot cause such rotation. As shown, the member 16 is a housing for the bars 20, 21 which are lead screws carrying the elements 22, 23 in the form of nuts, and the housing 16 is connected to linkage 5 by an hydraulic actuator 17.
Patent GB-451848-A (GB)
Title: Improvements in or relating to the manufacture of extruded metal shapes by hot hydraulic extrusion
IPC: B21C23/21
Filed: 1934-12-11
Abstract: 451,848. Squirting. SPARKS PROCESSES, Inc., 35, Park Hill Avenue, Norwalk, Connecticut, U.S.A. Dec. 11, 1934, No. 35568. Convention date, Aug. 27. [Class 83 (iv)] Billet - piercing forging- punches ; physical structure, altering by mechanical treatment ; working at specified temperatures.-A heated, plastic billet is extruded through a die by the simultaneous movement towards each other of the die and a ram each actuated by hydraulic means. A press comprises an extrusion plunger 10 and a die support 33 moved towards each other at equal speeds by hydraulic cylinders 1, 1<1> respectively, the pistons of which are connected to cross-heads 5, 5<1> slidable on rods 6. The cross-heads are returned by auxiliary cylinders 7, 7<1>. The container, having a liner 23 is formed in a cross-head 15 slidable on the rods 6, and is moved therealong by cylinders 18, 18<1>, the free ends of piston rods 16 of the cylinders 18 being slidable in the cross-head to a position limited by nuts 20, while the rods 16<1> of the cylinders 18<1> are screwed into the cross-head. The die 37, Fig. 17 is carried in a holder 33 which may be swung downwardly about a lower pin 34 on removal of the upper pin 34, a recess 39 in the die carrier engaging over the end of the container liner 23, Fig. 10, during piercing and extrusion. A piercer 30 having a removable tip 31 with a forward portion of reduced diameter is secured to a cross-head 21 on the piston rods 16, and after piercing the billet acts as the extrusion mandrel. Extrusion is effected by combined movement of the die 37 and the ram 10, the latter acting against a block 41. The extruded tube is ejected and the residue severed by a tool 45, Fig. 13, inserted into the container. The billet may be square or cylindrical and may be solid, drilled, or partly drilled. When of steel it may be inserted at a temperature within 150‹ F. to 400‹ F. of its melting point, the temperature being, for example, 2380‹ F. The length of the billet may be three times its diameter. Examples are given of the speeds, pressures, and times of the successive operations, the speed of extrusion being preferably between 5 inches to 9 inches per second corresponding to a speed of the tools of 2¢ inches to 4¢ inches per second. The method is stated to improve the structure and physical properties of the material, and numerical examples of the improved properties are given. In a modified form of press, two cylinders on either side of the outlet tube 3 for the extruded work may replace the single cylinder 1<1>. In a further modification, the die 37<a>, Fig. 23, is movable through the bore of the container 23, while the container is engaged by a flange 41<a>, and caused to move with the ram 10<a>, indirect extrusion thus being effected. Specification 406,301 is referred to.
Patent GB-356046-A (GB)
IPC: G09F13/00
Filed: 1930-11-26
Abstract: 356,046. Displaying. PIERRUGUES, M., 75, Rue de Paris, Charenton, Seine, France. Nov. 26,1930, No. 35592. Convention date, Nov. 27, 1929. [Class 3 (i).] Display apparatus for footwear comprises an imitation foot placed inside a shoe which has a transparent portion 3 enabling movement of toes 4 of the foot to be observed. Each toe is pivoted on an axle 5 and is connected by rods 7, 8, 6, 9 to levers 10 having rollers 11 engaging cams 12 which are actuated through reduction gearing by an electric motor 23.
Patent GB-947784-A (GB)
Title: Improved automatic control for liquid dispensing apparatus
IPC: B67D7/48
Filed: 1960-10-18
Abstract: 947,784. Controllers. V. H. ARNOLD, E. H. COWLED, and E. S. KNIGHT. Oct. 18, 1960 [Oct. 21, 1959], No. 35596/60. Heading H2B. [Also in Divisions A4 and B8] A conduit 10, open at its end nearest the mouth of a liquid (e.g. petrol) dispensing nozzle 11, is evacuated by a fan 16 and is in communication with a pressure switch 20 arranged to stop the flow of liquid when the pressure in the conduit drops below a predetermined minimum. Closure of a main switch 31 supplies current through relay contacts 24, 26 to the fan 16 and a pump 35 causing petrol to flow down a hose 13, through a manuallyoperable valve 6 and out of the nozzle 11 into a tank (not shown). As soon as the level of petrol in the tank is sufficient to cover the end of conduit 11 the pressure therein begins to fall due to the fan 16. The reduced pressure actuates the switch 20 to close the circuit of a relay 23 and change over contact 24 to 27, disconnecting the supply to the pump and fan and connecting it to a solenoid valve 21 which restores atmospheric pressure in the conduit. The relay 23 is provided with a latch maintaining it in the energized position until the main switch 31 is opened. An audible or visual indicator may be provided to show when the motors have been switched-off.
Patent GB-384817-A (GB)
Title: Improvements relating to the production of base exchange gels
IPC: C01B33/46
Filed: 1931-12-24
Abstract: Base-exchange gels, particularly those comprising double aluminium alkali silicates used as water softeners, are produced by making an intimate mixture of dried powdered materials which react to form the gels, moistening with water or steam, allowing to stand until the reaction is completed, drying, and washing with water.  The mixture may be granulated prior to or during the moistening or made into a cake.  The reagents may be mixed for example by grinding in a ball mill and, if petrol or kerosine are employed for blending, these are evaporated before moistening. According to an example, an artificial zeolite is made by grinding a mixture of spray-dried sodium silicate and dry sodium aluminate which is then tamped into perforated steel moulds and treated with exhaust steam.  The mould is left for four or five hours, or better overnight, and is kept wet.  The cake is then air dried at a temperature not exceeding 80 DEG  C., washed to remove most of the excess alkali, and dried.  Other examples describe the preparation of zeolitic gels from mixtures of dry sodium silicate and aluminium sulphate, in some cases with the addition of dry sodium aluminate, ferric sulphate, and soda.  The products may be granulated, pressed, or shaped.  Specification 346,951 is referred to.
Patent GB-619337-A (GB)
Title: Improvements in or relating to polyphase electric circuit arrangements of the kind including inductances having saturable magnetic cores
IPC: G05B1/02
Filed: 1946-12-03
Abstract: 619,337. Phase changing; changing wave shape. GENERAL ELECTRIC CO., Ltd., and DUNHAM, C. R. Dec. 3, 1946, No. 35767. [Class 38 (ii)] A polyphase circuit for providing grid impulse voltages for rectifiers, for stabilization, for the generation of harmonic frequencies, non-sinusoidal waveforms and for the counteraction of harmonic voltages and currents includes a number of pairs of magnetic core paths, each path linking with at least one separate winding, and each pair of core paths linking with a further winding common to that pair, the connections being such that the magnetic paths pass in turn through their unsaturated and saturated states during each A.C. cycle. In a three-phase circuit, three pairs of magnetic paths are formed by three three-limbed cores 10, 10<SP>1</SP>, 10<SP>11</SP>, the crosssection of the inner limbs 11, 11<SP>1</SP>, 11<SP>11</SP> being twice that of the outer limbs 12, 12<SP>1</SP>, 12<SP>11</SP> and 13, 131 13<SP>11</SP>. Each of the supply terminals 15, 16, 17 is connected through one of windings. 4, 4<SP>1</SP>, 4<SP>11</SP> and one of windings 6, 61, 6<SP>11</SP> on the outer limbs and one of windings 5, 51, 5<SP>11</SP> on the inner limbs to star point 14. The windings 5, 51, 5<SP>11</SP>, which have more turns than those on the outer limbs in the ratio 1+#3: 1, link with both magnetic paths of a pair. With this connection, all six magnetic paths pass through their unsaturated state of 30 degrees duration, twice per voltage cycle in a cyclic manner so that a continuous and substantially sinusoidal back E.M.F. equal to the line volts is induced between each pair of the input terminals 15, 16, 17 in the sets of series-connected primary windings when taken in pairs in series. The star point 14 then forms an oscillating neutral with a square waveform of three times the fundamental frequency. There are induced consecutive 30 degrees pulses in the windings on the outer limbs of each pair of core paths and pulses of 60 degrees duration in the common windings 5, 5<SP>1</SP>, 511 and in the three pairs of secondaries 19-24 which form a six-phase pulse circuit having a star point at 18. A 12-phase circuit could be obtained from secondaries on the outer limbs. Two twolimbed cores may replace each three-limbed one.
Patent GB-733767-A (GB)
Title: Improvements in centrifugal fans
IPC: F04D29/62
Filed: 1953-12-23
Abstract: 733,767. Centrifugal fans. BRAND, A. N. Dec. 23, 1953, No. 35800/53. Class 110 (1). In a centrifugal fan of the type in which the involute casing 2 can be swung round on the mounting 7 to vary the position of the dis, charge 8, the axis about which the casing can be swung is eccentric to the axis of the impeller 1. An outwardly projecting ring 4 on each side of the casing is carried in a  corresponding arcuate cradle 5, and is approximately concentric with the portion of the casing opposite the discharge 8. The rings 4 are bolted to the cradles 5, which have a larger number of holes drilled in them than in the rings 4 to facilitate securing the casing 2 in numerous different positions.
Patent GB-1041085-A (GB)
Title: Process for the preparation of silver halide emulsions by the flocculation method
IPC: G03C1/015
Filed: 1963-09-11
Abstract: A compound of the formula <FORM:1041085/C2/1> wherein <FORM:1041085/C2/2> represents the triazine radical of the formula <FORM:1041085/C2/3> is obtained by reacting cyanuric chloride with the sodium salt of 2-aminonaphthalene-4:8-disulphonic acid in water at 0 DEG  to 4 DEG  C. and then reacting the resulting condensation product with 4,41-diamino-diphenyl-2: 21-disulphonic acid (in the form of its sodium salt) in water at 40 DEG  C. and at pH of 6 to 7. The product may be further condensed at 40 DEG  C. with the primary condensation product to form a compound of the formula <FORM:1041085/C2/4> The following compounds may be prepared in a similar manner to the method used for the lastmentioned compound by using 2-methoxy-4:6-dichloro - 1:3:5 - triazine, 3:4:5:6 - tetrachlopyridazine, 2:4:6-trichloropyrimidine and 2:4:5:6-tetrachloropyrimidine, respectively, instead of cyanuric chloride:-  <FORM:1041085/C2/5> The compounds are useful as flocculating agents in the preparation of photographic silver halide emulsions.