baber/WOPTO huggingface dataset:
Patent GB-293211-A (GB)
Title: Improvements in and relating to reflective signs and the like
IPC: G02B5/08
Filed: 1927-07-29
Abstract: 293,211. Henderson, F. S. July 29, 1927. Reflectors. - Reflector units for signs consist of a reflective member 3 in the form of a sphere of silvered glass, which may have a fluted or corrugated surface, a concave reflector 4 and a socket 5. A projection 6 on the sphere 3 passes through a hole 7 in the reflector 4 into the socket 5 where it is secured with pitch or other material securing all the parts together. External lugs 8 enable the unit to be fitted in an electric light socket.
Patent GB-571103-A (GB)
Title: Improvements relating to anti-friction bearings
IPC: F16C33/10
Filed: 1943-12-04
Abstract: 571,103. Lubricating bearings. BOUND BROOK BEARINGS (G. B.), Ltd., and HATHAWAY, H. W. J. Dec. 4, 1943, No. 20299. [Class 12 (i)] A cylindrical bearing comprises inner and outer race rings 12, 16 and an intermediate porous bearing ring 18 located axially by the race rings. Each race ring is in two parts bolted together, the outer ring forming a lubricant reservoir 17. The ring 18 has holes through it or is made of porous metal.
Patent GB-167669-A (GB)
Title: Improvements in door and like checks
IPC: E05F3/04
Filed: 1920-07-09
Abstract: 167,669. Habbach, H. July 9, 1920. No Patent granted (Sealing fee not paid). Helical springs.-The motion of a buffer k of a door chuck is resisted by a helical spring n acting through liquid in a right-angled tube which has limbs a, b serving as cylinders for pistons f, m between which is a liquid, preferably mercury, the piston f attached to the buffer rod g 'being V- shaped in cross-section, as shown. The end caps d, e of the cylinder members have air-escape holes. The door on closing contacts with the buffer k and the piston f is forced back against the weight of the liquid and the piston m contained in the cylinder b to check the final movement of the door. As the piston m is lifted, it compresses the spring n. Shoulders o are formed on the inside surface of the elbow joint c to limit the movement of the pistons. The cylinder a is clamped to the door frame by a bearing p, a shoulder w preventing the piston from being moved axially. The inclination of the cylinder element b may be adjusted to vary the weight acting on the piston f.
Patent GB-298309-A (GB)
Title: Process for welding metal pieces, particularly for welding rail clips to rail road ties or sleepers
IPC: B23K11/00
Filed: 1927-08-02
Abstract: 298,309. Fuechsel, M. Aug. 2, 1927. Sleepers, securing rails to. -In joining rail clips a to. sleepers e, both parts are formed with equal annular contact surfaces b, e by stamping so that the fibres are directed at an angle of 90‹ with respect to the surface of contact, the parts being then electrically welded together.
Patent GB-628312-A (GB)
Title: Improvements in or relating to frequency measurement
IPC: G01R23/00
Filed: 1945-05-30
Abstract: 628,312. Frequency measurements. PHILCO RADIO & TELEVISION CORPORATION. May 30, 1945, No. 20348/48. Convention date, May 30, 1944. Divided out of 628,245. Drawings to Specification. [Class 37] To indicate successive frequency coincidences between a signal of varying frequency and a plurality of signals of different fixed frequencies, e.g. for calibrating a variable oscillator, both the variable and the fixed frequencies are heterodyned to produce beat frequencies and the two beat frequencies compared to indicate when they are identical, i.e. when the signal of varying frequency has the same frequency as one of the fixed frequencies. The description is substantially the same as that of Specification 628,245. Specification 628,246, [Group XIX], also is referred to.
Patent GB-224585-A (GB)
Title: Improvements relating to etching machines
IPC: C23F1/08
Filed: 1923-08-10
Abstract: 224,585. Kingman, H. W., and Baird, Ltd., W. & G. Aug. 10, 1923. Etching.-In machines for etching zinc, copper, or other metal plates, the plate 4 is supported in the etching fluid in a compartment 2 in a perpendicular or substantially perpendicular position. A perpendicular agitating-device 8, having a series of blades or fins 9, is arranged in front of the plate 4 and reciprocated whereby currents produced below the surface. of the fluid are caused to impinge against the plate without aeration or oxygenation of the fluid. The blades may be arranged in pairs inclined alternately upwards and downwards; they may also be arranged in broken formation and inclined at various angles. The plate 4 is guided into position by means of inclined guides 5, and may be washed after etching in a second compartment 3 provided with a water spray 6.
Patent GB-902507-A (GB)
Title: Improvements in alarm apparatus
IPC: B60R25/10
Filed: 1960-06-09
Abstract: 902,507. Burglar alarms. DU PLOOY, W. A., and CHAITOW, M. June 9, 1960 [June 15, 1959], No. 20361/60. Class 118. A movement-sensitive alarm comprises a torsion bar 2 carrying an adjustably loaded cantilever member 13 to which is secured an arm 19 carrying an electrical contact 17 which completes an alarm circuit on touching an adjustable fixed contact 18. The alarm may give an audible or visible signal or an electric shock.
Patent GB-148426-A (GB)
Title: Improvements in sound apparatus
IPC: G01S1/72
Filed: 1920-07-10
Abstract: 148,426. Signal Ges. March 15, 1916, [Convention date]. Subaqueous audible signals.-The laminµ of electro-magnets and armatures of sound producing and receiving instruments are combined into an integral body by filling the interstices with gum, varnish, or the like. The Figure shows a laminated armature attached to the diaphragm 1 of a vibrator. The laminµ 5 are held in a frame 2 and are separated by layers of gum 6. In manufacture, the binding agent is applied to the laminµ in an evacuated vessel and pressure is subsequently applied to drive the binding agent into the interstices, and the whole is dried. The substance sold under the registered trade name of Bakelite may be used as the binding-agent.
Patent GB-680869-A (GB)
Title: Improvements in thermo-electric generators
Inventor: KENDALL JAMES TYLDESLEY
IPC: H02N11/00
Filed: 1950-08-16
Abstract: 680,869. Thermo-electric batteries. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. July 18, 1951 [Aug. 16, 1950], No. 20378/50. Class 53. One element of a thermocouple consists of grey tin or an alloy of grey tin. The other element may consist of copper or white tin or of a grey tin or an alloy thereof having thermo-electric properties different from the grey tin of the first element. In the thermo-couple shown in the Figure, a mass of grey tin 4 in contact with copper rods 2, 3 is enclosed in an insulating sleeve 1 which passes at one end through the bottom of a vessel 5 containing water or other liquid which is maintained at a temperature of 10 C. by means of water circulating through a coil 6. The other end of the sleeve 1 and the copper rod 3 are immersed in liquid in a vessel 7 and maintained at a temperature lower than that of the water in vessel 5. Liquid air may be used for cooling the rod 3. Terminals 8, 9 are attached to the rods 2, 3.
Patent GB-1468484-A (GB)
Title: Process for the monotration of ortho-xylene
IPC: C07B61/00
Filed: 1975-05-14
Abstract: 1468484 Mononitration of ortho-xylene AMERICAN CYANAMID CO 14 May 1975 [11 June 1974 (2)] 20397/75 Heading C2C A process for mononitrating o-xylene comprises reacting stoichiometrically o-xylene with a mixture of nitrogen dioxide or nitrogen tetroxide and either (i) an oxygen containing gas, (ii) concentrated nitric acid maintained at a concentration of from 68 to 98% by weight, in the presence of a mercury salt dissolved in an aliphatic monocarboxylic acid or anhydride thereof at a temperature of from 20 to 80 C. for from 1 to 8 hours and recovering mononitroo-xylene from the reaction mixture. The mercury salt is preferably mercuric acetate, mercuric propionate or mercuric benzoate and the solvent is preferably present in an amount from 1À0 to 10 mols of the acid per mol of o-xylene employed as the reactant.
Patent GB-823716-A (GB)
Title: Improvements in or relating to electrical frequency dividing circuits
IPC: H03B19/03
Filed: 1956-07-02
Abstract: 823,716. Frequency changing. GENERAL ELECTRIC CO. Ltd., and GLOVER, B. W. July 2, 1957 [July 2, 1956], No. 20422/56. Class 38 (2). An arrangement for dividing by three the frequency of A.C. supplied to terminals 47 comprises two saturable cores 41, 42 having no intersecting limbs and made of materials having different permeabilities. The cores bear input windings 43, 44 and output windings 45, 46 supplying a resistive load 49 in series with a capacitor 48 which advances the phase of the current through the output windings. A thyratron 52 assists starting. On switching on, its anode and grid are energized respectively by winding 53 on core 41 and by windings 50, 51 on the two cores so that it passes pulses at the supply frequency. Core 41 being saturated at the source frequency, voltage components at the voltage sub-harmonic frequency are supplied by windings 45, 46 to load 49. The resulting increase in negative grid bias cuts off thyratron 52. Specifications 599,880 and 639,059 are referred to.
Patent GB-822987-A (GB)
Title: Improvements in or relating to colour television receivers
Inventor: CARNT PETER SWIFT
IPC: H04N11/14
Filed: 1957-06-28
Abstract: 822,987. Colour television. GENERAL ELECTRIC CO. Ltd. June 24, 1958 [June 28, 1957], No. 20523/57. Drawings to Specification. Class 40 (3). [Also in Group XL (c)] In a colour television receiver for use in a system in which the picture information is transmitted by separate luminance and chrominance signals, means are provided for preventing signals in the chrominance path or paths of the receiver which correspond to colours of low saturation from being utilized in the reproduction of the picture. The invention, which has the effect of eliminating undesirable coloration of near-white pictures due to external noise, is described as applied to a receiver for N.T.S.C.-type signals and consists in the provision of diode limiter circuits (see Group XL (c)) in the chrominance channel following the I and Q detectors. The circuits only allow passage of signals exceeding a predetermined minimum value in either a positive or negative direction. The values may be adjusted either manually, or automatically in accordance with the signal level in the luminance channel. The value for the I signal path may differ from that for the Q signal path.
Patent GB-866314-A (GB)
Title: Improvements in packaging and similar machines
IPC: B65B9/04
Filed: 1958-06-26
Abstract: 866,314. Packaging machines. OLLIER, J. H. G., GROSSHANS, G. F., and MASSON, R. G. June 26, 1958 [June 29, 1957], No. 20527/58. Class 94(1). In a machine for making containers from bands of thermoplastic material, the devices for heating, forming, welding and cutting-out the material are adjustably mounted on bars 9 to admit of alteration to suit the manufacture of different containers. The devices are accurately positioned by a graduated scale on the machine. The devices may be duplicated. The material 3 may be a vinyl chloride, a polyethylene, or a polyamide, is heated at station CH by infra red rays, is formed in a mould by a vacuum at station PF, is filled from a device 19, has a lid of material 4 applied at station PS, and is cut from the sheet at station PD and ejected as a package 7 through a shoot 24. The lid may be sealed with the package under vacuum or filled with gas, and may have a handle. Part 14 at each station PF, PS, and PD is in the form of an elongated ring and moves vertically on rods 15 by pneumatic jacks towards and away from the material. At station CH movable screens control the amount of the material that is softened, the screens may be water cooled. A device Ti draws the material forward step by step by means of a pneumatic jack, rollers 28, 29 being moved apart on the return stroke by electro-magnetic means. If the material carries an inscription this may operate a photo-electric cell to control the step-by-step movement of the material.
Patent GB-585654-A (GB)
Title: New azo dyestuff
IPC: C09B35/40
Filed: 1945-08-10
Abstract: A trisazo dyestuff is manufactured by coupling the diazoazo compound from one molecular proportion of tetrazotized benzidine and one of salicylic acid with the monoazo compound obtained by coupling diazotized aniline-2 : 5-disulphonic acid with resorcinol.  The product dyes leather in orange-brown shades; e.g. full chrome calf skins in the blue are drummed with an aqueous solution of sodium bicarbonate to produce a surface pH of 6-6.5, washed, drummed with an aqueous solution of the dyestuff with the addition of formic acid in the course of the dyeing, and then fat liquored, struck out and dried.
Patent GB-314960-A (GB)
Title: Improvements in mercury vapour apparatus for inverting or converting electric currents
IPC: H01J17/04
Filed: 1929-07-04
Abstract: 314,960. Mitsuda, R. July 5, 1928, [Convention date]. Metallic-vapour apparatus. - A device for periodically interrupting or rectifying electric current comprises a vacuum chamber containing a mercury cathode b and a pair of shielded anodes a separated from the cathode by metallic barriers c pierced by holes d. A rotary shutter e having an arcuate slot f therein is disposed between the barriers c so that the arcs between the anodes and cathode are extinguished alternately. The shutter is driven by a motor, and auxiliary anodes are provided for maintaining auxiliary arcs near the cathode.
Patent GB-189491-A (GB)
Title: Improvements in gas-producers
IPC: C10J3/80
Filed: 1921-08-02
Abstract: 189,491. Redfern, C. G., (Stuart, H. A.). Aug. 2, 1921. Grates and fuel supports. - In a gas-producer the fuel is supported on a plate f having an opening g and resting on brackets h. Below the plate is a grate i which may be suspended by chains j so that it can be shaken by a crank arm k and handle m. The ash is pushed to the central hole g through plugged openings n, and similar holes o may be used to enable the grate to be cleared of clinker.
Patent GB-213831-A (GB)
Title: Improvements in or relating to expanding arbors or mandrels
IPC: B23B31/40
Filed: 1923-08-14
Abstract: 213,831. Urquhart, A. Aug. 14, 1923. Mandrels. - An expanding mandrel for a lathe &c. comprises a body part 1 having a portion of reduced diameter on which is mounted a slit sleeve 2 restrained from endwise motion by a ballthrust 3 and an endplate 4. A spiral groove of semi-circular cross-section, cut in the sleeve is filled with a series of balls which engage the inclined surface of a similar spiral cut on the body part. The sleeve is expanded to grip 'the work by relative rotation between itself and the body part, such relative rotation altering the phase of the two spirals and causing the balls to climb the incline on the body spiral. In a modification the balls may be carried by the body part and the wedge section spiral cut in the sleeve. Stops 12, 11 may be fitted to limit the relative rotation of the parts, and a coiled spring 13 may be provided to retain the sleeve and body in such angular relation that the sleeve is tightly expanded. The sleeve may be knurled on the periphery of the flange 6 and radial holes may be provided in the flange for the reception of a pin &c. spaner. A handwheel loosely mounted on the body 1 and having a recess in which seats the stop 11, may also be fitted. The sleeve may be completely split at one, and partially split at other angular positions.
Patent GB-1474675-A (GB)
Title: Hall-voltage device
IPC: H01L43/06
Filed: 1975-05-15
Abstract: 1474675 Hall voltage device FHFG SPIERINGS 15 May 1975 [16 May 1974] 20642/75 Heading G1N A Hall voltage device is generally as described in Specification 1389413 and is characterized by provision of an electrode support consisting in a thin, flexible disc 4 of a plastics foil on which disc both the electrodes 5, 6 and their associated conductors 7, 8 extend and which disc includes a radial cut 9 so as to permit insertion of the disc into the rotatable box (1) Fig. 1 (not shown). In an alternative embodiment Figs. 3, 4 (not shown) the cavity 2 is divided to form two chambers similarly as 1445776 by the disc 4 which has further insulating discs 10, 11 fixed on either side.
Patent GB-1024955-A (GB)
Title: Improvements in and relating to inverters
IPC: H02M7/523
Filed: 1964-05-19
Abstract: 1,024,955. Inverter. BROWN, BOVERI & CO. Ltd. May 19, 1964 [May 21, 1963], No. 20671/64. Heading H2F. [Also in Division H3] Voltage pulses for determining the instant of commutation of the semi-conductor elements 1 ... 4 in a D.C. to A.C. inverter bridge are taken from a capacitor 10 in a supplementary load circuit comprising the capacitor and magnetic amplifier 11, 12. The control current Is of the amplifier insures a rectangular current flowing in the amplifier's main winding. The capacitor initially charges to a voltage above the output voltage U M  and the reverse current from its subsequent discharge is sufficient to quench the main semi-conductor elements 1-3 or 2-4, this current then flowing through the reverse diodes. The passage of the capacitor voltage through zero is detected by control means, not shown, which fire the opposite pair of main elements at this instant. The frequency and amplitude of the A.C. voltage is thereby maintained constant and independent of load changes.
Patent GB-441025-A (GB)
Title: Improvements in and relating to flooring and like constructions
IPC: E04B5/29
Filed: 1934-07-16
Abstract: 441,025. Floors. SHIPWRIGHT, W. G., Victory House, Leicester Square, London. July 16, 1934, No. 20757. [Class 20 (iv)] A floor comprising joists B, joist tiles A supported below each joist, filler blocks D, and concrete F, is arranged with the blocks D supported directly or indirectly by cross-bars C extending between adjacent joists and having at each end a bearing disposed over the adjacent flange of a joist, and the joist tiles A are so formed as to permit of their suspension from the joists by means independent of the filler blocks D. The ends of the cross-bars C are hooked and extended so as to support the joist tiles A. The filler blocks D are either provided with ledges d, as shown in Fig. 2, whereby they are supported on the joist tiles A, or are adapted to be carried directly by the cross-bars C, which may engage beneath the uppermost ledges h provided on the blocks, as shown in Fig. 5, or pass through the cavities g in the blocks. The edges of the blocks transversely of the joists may be provided with ledges e to form spaces f for accommodating the cross-bars C, as shown in Fig. 3, or such edges may be spaced apart and provided with ledges h for supporting tiles H adapted to form the lower face of a concrete rib which is reinforced by rods J passing under, and at right-angles to, the joists B. In a further construction, flat ceiling slabs K are laid upon the joist tiles A, as shown in Fig. 6, being supported, prior to setting of the concrete F, by cross-bearers L.
Patent GB-279582-A (GB)
Title: Improvements in the manufacture of roofing tiles
IPC: B28B7/00
Filed: 1926-08-24
Abstract: 279,582. Wilson, F. A. Aug. 24, 1926. M o u l d s ; cutting- apparatus. - In a mould for roofing- tiles &c. the pallet is supported by a stationary carrier, preferably of skeleton form, disposed with a clear space all round to allow waste material to drop through. The mould is composed of sides removable for correction for wear and adjustable relatively to the mould support, and is provided with a pallet reinforced in one direction by flutings and in the other by a beading. As shown, the mould comprises sides d - - d<3>. Fig. 2, of angle-iron bolted to angle-irons f and channel-irons g on a table A. The sides are removable for correction for wear and are adjusted vertically by packing-pieces. A skeleton carrier r is supported from the members g upon adjustable pegs u, and is apertured at r<3> for the passage of pallet lifters s<1> carried by plungers s operable by pedal mechanism t - - t<4>, Fig. 1. The mould may form a pair of tiles which may be divided by a knife m on a colour box q, as described in Specification 260,340, the box being guided by runners i. The pallet a, Fig. 5, is stiffened longitudinally by flutes b and transversely by an edge beading v. As shown in this figure, the carrier comprises a pair of strips r<1> upon which rest additional angle-iron stiffeners n of the pallet, which is adapted to produce four or six tiles. According to the Provisional Specifications, the mould sides may be located by corner cleats or projections, and the mould may be applied to building-blocks. Specification 149,511 also is referred to.
Patent GB-285736-A (GB)
Title: Improvements in apparatus for spraying hops, fruit trees and the like
IPC: B05B1/16
Filed: 1927-08-08
Abstract: 285,736. Bird, C. Aug. 8, 1927. Protecting baffles and covers.-The movement of a three way cock is limited by a stop t, Fig. 2, on the valve body engaging the ends of a slot u in a bell w<1> attached to an operating handle w and enclosing the gland and stuffing box.
Patent GB-793466-A (GB)
Title: Apparatus for the gasification of finely divided solid fuels
IPC: C10J3/46
Filed: 1955-07-19
Abstract: 793,466. Gas producers; rotary grates; ash removal. KOPPERS GES., H. July 19, 1955 [Sept. 5, 1954], No. 20917/55. Classes 51 (1) and 55 (1). [Also in Group XIII] Apparatus for gasefying pulverulent fuels in suspension with oxygen and gasefying agents having an endothermic reaction has an indirect heat exchanger, e.g. a steam generating device, connected to the outlet of the gasefication chamber, the free cross-sections of the gas passages in a part of the heat exchanger being dimensioned so that with a constant volume of gas produced the speeds of flow of the gas passing through the heat exchanger are increased such that while a high degree of heat transfer in the heat exchanger is maintained the gasefication residues entrained in the gas are not allowed to form a deposit on the walls of the heat exchanger. The speed of flow of the gas in the heat exchanger preferably does not fall below 9 m/sec. and may advantageously be as high as 15 m/sec. The heat exchanger may be arranged above or below the gasefication chamber. In Figl 1, the reactants are fed through nozzles 2 into a gasefication chamber 1 of hot gas, passes out of the chamber through a water-cooled outlet 3 into a radiant boiler 4, the gas passages 6 in the upper part of which are of such crosssection that the speed of flow of the gas is above 9 m/sec. From the boiler 4 the gas passes through a tube boiler 8 and a dust separator 9 to a gas outlet 10. Fig. 2 shows a gasefication chamber 20 supplied with reactants through nozzles 21 and provided at its base with a water-cooled element 22 having an extension plate 23 dipping into a rotating water dish 24, ash falling into the water being removed by a deflector plate 26. A cylindrical boiler 28 with water circulating means 27 extends through the gasefication chamber and defines with the boiler 29 a passage 30 through which the gas from the chamber 20 passes to a dust separator 31 and the gas outlet 32. A seal 33 is provided between the rotating dish 24 and the boiler 29, a plate 34 being arranged above the seal to deflect ash into the dish 24. Watercooled scraper arms 35 and 36 rotate with the dish 24 to prevent accumulations of ash.