baber/WOPTO huggingface dataset:
Patent GB-695870-A (GB)
Title: Improvements in or relating to audio frequency signalling in communication installations
IPC: H04Q1/446
Filed: 1950-04-05
Abstract: 695,870. Automatic exchange systems. SIEMENS & HALSKE AKT.-GES. April 5, 1950 [April 5, 1949], No. 8602/50. Class 40 (iv). In a V.F. signalling system each V.F. control signal is preceded by a 'brief preparatory impulse of current difficult to simulate by speech, which blocks the line immediately succeeding the next signal receiver. In the transmitter R.Ue, D.C. signals are applied through the contact a, the initial operation thereof bringing up B immediately to transmit a preparatory signal f# which may be of frequency-modulated audio-frequency. Relay Bs also operates after about 20 ms. and As follows after another 20 ms. to disconnect f# and connect up pure tone f 1 #. As brings up V s  which releases B to prevent further transmission of f#. Impulsing of a is followed after a time lag by Bs, As, the latter repeating the impulses as interruptions of f 1 #. In the receiver We the preparatory signal is received by a voice-immune relay Iv which operates T to short-circuit the outgoing line and also brings up Ve which locks T and connects up I which thereupon responds to signals received by a non-voice-immune relay Is. Ve is held by I and holds up during impulsing due to the short-circuiting of one of its windings. In an alternative embodiment, during impulsing f# may be connected up between the f 1 # impulses.
Patent GB-424103-A (GB)
Title: Improvements in hairdyeing apparatus
IPC: A45D19/02
Filed: 1934-03-19
Abstract: 424,103. Brushes, pads, &c. MEYER, H., 94, Shaftesbury Avenue, London. March 19, 1934, No. 8605. [Class 19] [See also Group XVII] A hair-dyeing apparatus comprises a brush or pad 1, Fig. 1, shaped to the curvature of the scalp, and a dipping dye trough, Fig. 3, curved to the contour of the brush &c. with means 12 for removing surplus liquid from the brush. A shelf 13 serves as a platform upon which the brush may be placed when out of use, with the handle in a recess 14, Fig. 2.
Patent GB-291559-A (GB)
Title: Improvements in holders for safety razor blades for use in stropping the same
IPC: B24D15/10
Filed: 1927-03-29
Abstract: 291,559. Bleloch, W. E. March 29, 1927. Razors.-A holder 2 for stropping safety razor blades is curved transversely to present a convex surface to the blade and afford a solid or unbroken supporting surface for the blade along its longitudinal sides. The razor blade 3 is held in stropping position by a fixed tongue G and a spring pressed tongue 9, each engaging one of the holes 5, 8 in the blade. The edge 12 of the slot 11 in the holder for the movable tongue 9 is bevelled, the tongue 9 being inclined to correspond. The rod 10 of the tongue 9 is bent. at 14 so that the tongue has a spring tendency to pass out of engagement with the slot 11 when the button 6 is operated. The tongue 9, the hole 8, and the slot 11 are substantially of the same width. Specifications 250,624 and 267,247 are referred to.
Patent GB-761900-A (GB)
Title: Improvements in or relating to circuit arrangements for synchronising oscillation generators
IPC: H04N5/12
Filed: 1954-03-25
Abstract: 761,900. Automatic synchronizing systems. TELEFUNKEN GES., [formerly TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE.]. March 25, 1954 [March 25, 1953], No. 8703/54. Class 38 (4). A sawtooth generator, e.g. a blocking oscillator 16, periodically discharging a slowly charging capacitor 22a, is synchronized relative to incoming synchronizing pulses P by applying the latter superimposed on the flyback portion of a sawtooth voltage'from the capacitor 22a to a phase-comparing valve 1a with threshold bias U (Fig. 1a) and deriving a control voltage, e.g. from the cathode circuit 6, 18, applied to the sawtooth generator control grid, to synchronize the frequency to that of the incoming pulses. Further, the steepness of the flyback portion of the sawtooth is adjustably controlled to adjust the phase range and degree of control by applying during the flyback period a pulse of adjustable amplitude and polarity to the control grid of the phase-comparing valve 1a. This may be derived, in a television receiver, from a winding 28 having an earthed centre tap, coupled to the deflection sweep transformer 24, and having a pair of similar condensers 29, 30, one of them adjustable, across the winding 28. The concavity or convexness of the flyback slope and hence its steepness may therefore be varied by adjusting the condenser 30, without materially affecting the flyback or other portion of the sawtooth slope applied to the driver valve 15. Further, a coupling network N between the winding 28 and driver valve 15 may bias the latter to cut-off during the flyback period. Specification 665,892 is referred to.
Patent GB-765994-A (GB)
Title: Mining injector tool with high-pressure liquid injector head
IPC: B05B12/06
Filed: 1955-03-25
Abstract: 765,994. Pipe joints. JERUSEL, J. March 25, 1955 [March 25, 1954; March 17, 1955], No. 8714/55 Class 99(1) [Also in Group XXI] In an infuser tool a tube 50 is closed at one end by a plug 53 which forms an abutment for an annular packer 55 of resilient material that is spaced from a similar packer 59 by a perforated sleeve 57. A nut 66, 67 engages a threaded portion 64, 65 of the tube 50 and abuts a sleeve 63 that in turn abuts the second packer 59 so that movement of the nut towards the packers causes axial compression but radial expansion of the packers which can thus seal the tool in a bore formed in a mineral face. Water under high pressure discharges from the tube 50 through perforations 68 into the space in the bore between the two packers until the pressure in such space is such that the face is disintegrated.
Patent GB-591640-A (GB)
Title: Improvements in or relating to electrodes for underwater welding
IPC: B23K35/04
Filed: 1945-04-09
Abstract: 591,640. Uniting by fusion. HAIM, G. April 9, 1945, No. 8760. [Class 83 (iv)] An electrode for welding under water is provided with a waterimpermeable coating which has a greater cohesion than its adhesion to the electrode and which has associated therewith means for stripping or peeling the coating from the electrode. The electrode may thus be stored under water for an indefinite time and the waterproof coating removed when the electrode is required for use. The coating may consist of not more than 25 per cent of ethyl cellulose compounded with, inter alia, oils, resins and waxes. The flux coated electrode 11, 12 may be provided with a removable cap 13 connected by one or more parallel wires 15 stretched taut, or a helical wire to a clip 14 sprung on the electrode. The assembly is then dipped in a bath of the molten impermeable material at about 300‹ to 390‹ F. and the coating 16 allowed to set. The coating is stripped off when required by removing the clip and drawing it towards the cap. Instead o using a cap, the wire or a cord may be looped round the operative end of the electrode and secured at both ends to a spring clip on the electrode.
Patent GB-542994-A (GB)
Title: Electron-beam deflecting circuits
IPC: H03K4/28
Filed: 1940-05-16
Abstract: 542,994. Valve generating circuits. PHILCO RADIO & TELEVISION CORPORATION. May 16, 1940, No. 8762. Convention date, June 16, 1939. [Class 40 (v)] Relates to circuits for producing saw-tooth" currents in inductive loads 1, Fig. 1, having distributed capacity 5, in which the load circuit oscillates at its natural frequency and is impulsed by energy from a valve 6 to which voltage pulses 7 are applierl. In order to improve the linearity of the current in the inductive load, a second circuit, in parallel with the load, includes a diode 8 or other valve; a biasing means 9, 10, and an impedance 11 by which potentials are applied to the grid of valve 6 over the path 12, 13 to give the necessary output to obtain a linear wave-form. In a modified circuit, Fig. 2 (not shown) a second diode is in parallel with the first. In a further modification, the diode is replaced by a tetrode 19, Fig. 3, to the control grid of which is applied a saw-tooth voltage derived from a condenser-resistance combination 20, 21, thereby controlling the resistance of the valve 19 to control the decay of current in the inductance 1. An impedance 11 controls the valve 6 as in Fig. 1, except that the potential is applied to the screen grid. Specification 534,705 is referred to. The Specification as open to inspection under Sect. 91 also states that alternatively the control potential may be applied across a resistor in the cathode circuit of valve 6. This subject-matter does not appear in the Specification as accepted.
Patent GB-774295-A (GB)
Title: Device for use in the hanging of curtains
IPC: A47H1/18
Filed: 1954-03-25
Abstract: 774,295. Curtain rods &c. DITTRICH, P. J. June 17, 1955 [March 25, 1954], No. 8769/54. Class 52 (5). So that two curtains can overlap, the central part of the rod &c. is shaped as shown and is formed as a unit having reduced, notched ends 12, 13 taking into the ends of helical, plastic-covered curtain wires 14 or having screwed ends taking into threaded holes in the ends of curtain rods.
Patent GB-499924-A (GB)
Title: Improvements in the distillation of pitch and like carbonaceous materials
IPC: C10C1/04
Filed: 1938-03-22
Abstract: <PICT:0499924/III/1> In a process for the recovery of difficulty volatilizable products from pitches, tars, bitumens, coals, resins, waxes &c., of the ;  kind in which the initial materials, preferably preheated, are atomized in a current of superheated steam or gas, the atomized materials are mixed with the steam or gas under pressure or vacuum in a locally very limited inlet zone, the length of which does not exceed a few centimetres, so that the materials are heated by the steam &c. only for a fraction of a second, whereupon the mixture is expanded into a non-heated expansion zone maintained at a lower pressure than the inlet zone where the products are cooled to a temperature below that at which decomposition can occur.  The reaction temperature may be chosen so that slight decomposition of non - volatile fractions of the initial material takes place, whereby difficultly volatilizable decomposition products are obtained.  The initial materials heated in a vessel F are fed through a nozzle D where they are atomized by heated gases passed through a coil A and a vaporizing tube C, the mixture being immediately expanded into a chamber E from which volatile constituents are withdrawn through a line H to condensation apparatus.  The distance of the nozzle D from the inlet of the expansion chamber E is about 20 cms. so that with a flow of vapour of 5 metres per second the materials are in contact with the hot gases for 1/25 of a second.  In examples: (1) coal-tar pitch was heated to 380 DEG  C. and sprayed into a steam-jet heated to 600 DEG  C.; 65 per cent viscous oil and 33 per cent pitch of high softening point were obtained; (6) 35 parts coal dispersed in 65 parts tar-oil were heated to 390 DEG  C. and sprayed into steam heated to 600 DEG  C., and on expansion the temperature of the mixture was reduced to 400 DEG  C.; 29 parts residue and 70 parts distillate were obtained.  Specification 169,763, [Class 32], is referred to.
Patent GB-915858-A (GB)
Title: Improved fluid-pressure actuated machine
IPC: B25C1/04
Filed: 1961-03-10
Abstract: 915,858. Stapling; nailing. BOSTITCH Inc. March 10, 1961 [March 22, 1960], No. 8937/61. Class 89 (3). [Also in Group XXIII] A pneumatic &c. nailing or stapling machine comprises a driver D driven by a piston 7 in a cylinder 2 to which compressedair is admitted above the piston from a reservoir 3, a control valve 60 having a port 62 to the reservoir and one, 72, to atmosphere, and a further valve 82 communicating at 85 with the cylinder 2, connected by a duct 81 to valve 60 and having an orifice 84 for exhausting to atmosphere air beneath the piston. The machine may be stationary or portable, with a handle 4 and a fastener magazine 7. A stick of staples in the magazine is fed along a core C by a spring (not shown) acting on a pusher J. The driver D, passing through a sealing buffer 50 at the bottom of the cylinder 2, is connected to the piston by a screwthreaded stud 20 having a rectangular neck which is engaged by the limbs of a U-spring 25 retained by a pin 26. Rotation of the piston to adjust the projection of the driver D is by a knob 30, which can be depressed to engage wings 37, carried by the knob, with driving recesses 40 in the top of the piston-skirt. With the valve-settings shown, compressed-air acts on both ends of the raised piston, that on the lower end of larger area passing through the port 62, duct 81 and past the non-return packing 93 on the valve-slide 90. Operation of the poppet 64 of valve 60, by a pivoted trigger 75, closes the port 62 and opens the port 72, permitting the slide 90 to rise and uncover the orifice 84. This exhausts the bottom of the cylinder 2 and allows the piston to be driven down for driving a staple.
Patent GB-117063-A (GB)
Title: Improvements in Flexible Containers for the Transport or Storing of Gas.
Inventor: SPENCER ARTHUR CHARLES
IPC: B60K15/03
Filed: 1917-08-31
Abstract: 117,063. Spencer, A. C., Allen, E., and Cole, E. G. Aug. 31, 1917. Holders.-Flexible containers for the transport and storage of gas for motor-driven vehicles, inflating balloons, &c., are provided interiorly at intervals on their sides and ends with flexible retaining-devices each consisting of a number of solid or hollow blocks 5, fixed to the walls 1 of the container or to a flexible strip attached thereto, the blocks having their adjacent edges in contact when the container is fully inflated so that they prevent outward deflection of the walls while permitting the walls upon deflation to fold inwardly upon the platform 2 upon which the container is supported. Strips 6 of wood &c. may extend across the top of the container and be connected by springs 7 to the platform to draw the container down as it is deflated, and strands of india-rubber may extend across the interior of the container from side 'to side to assist in collapsing it. The walls may be connected at points 8 to a combing 3 on the platform 2. Specification 116,812 is referred to.
Patent GB-198149-A (GB)
Title: Improved junction valve applicable for steam boilers and other purposes
IPC: F16K25/04
Filed: 1922-03-29
Abstract: 198,149. Porter, W. H., and Cauthery, J. March 29, 1922. Lift valves; closure members; casings.-In screw-down lift valves of the type known as junction valves in which the inlet is at right angles to the outlet and the latter is of conically-expanding or Venturi form, the valve seating D is formed with a projecting lip d<1> so that the seating surface d is protected from the direct action of the steam or fluid to avoid scoring or pitting; the valve facing b is also protected by being withdrawn, when fully open, into a cylindrical guide C of the casing, as shown. The valve spindle is secured to the valve member, as shown, and the screwed part e<2> operates in a bar G supported on pillars g.
Patent GB-160791-A (GB)
Title: Improvements in cash registers with setting discs
IPC: G06C7/10
Filed: 1921-03-24
Abstract: 160,791. Krupp Akt.-Ges., F. March 26, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Cash registers with operating-means.-Relates to differentially-set and crank-operated cash registers and comprises means for putting the differential element into gear so that on operating the crank the element is restored, the amount added, set on indicators and type wheels, and the setting indicator re-set to zero. Long pinions 28 swung in yokes 24 with an arm 23 for operation by a cam disc 27 driven by gearing as shown from the crank connect up the totalizer actuating wheels, and through rack 11 the indicator and type setting wheels. A single toothed cylinder 30 positions the intermediate gear 28 and a yoke 32 operated by a connecting-rod 34 restores the differential setting sector 3. In a modification shown in Fig. 7, a double sector 11<e> is employed instead of the straight rack 11 of the first form. Movement of the setting sectors is prevented during the operation of the machine by pawl levers 41 in either form having off-sets to engage cam discs 46, Figs. 4 and 7.
Patent GB-1379755-A (GB)
Title: Spectral sensitization of photoconductive compositions
IPC: C09B23/00
Filed: 1971-04-08
Abstract: 1379755 Spectrally sensitizing photoconductive compositions AGFA-GEVAERT 23 March 1972 [8 April 1971] 9094/71 Heading C4P A recording material comprises a photoconductive substance whose photosensitivity is increased by a spectrally sensitizing dye whose molecule comprises at least one N-substituted 2-amino-thiophene ring. The dye may have the formula  where R 1  and R 2  are each 1-5 C alkyl or together complete a 5- or 6-membered heterocycle; R 3  and R 4  are each H, alkyl, substituted alkyl, aryl or substituted aryl; and D is or  where L 1 , L 2  and L 3  are each optionally substituted methine; m is 1 or 2; n is 0 or 1; r is 0, 1 or 2; R 5  is saturated or unsaturated aliphatic group, cycloalkyl, or aryl; R 1 <SP>1</SP>, R 2 <SP>1</SP>, R 3 <SP>1</SP> and R 4 <SP>1</SP> have respectively the values given for R 1 , R 2 , R 3  and R 4 ; Z 1  completes a non-metallic 5- or 6-membered heterocyclic nucleus containing N, which nucleus may carry a fused-on benzene, dioxolobenzene or naphthalene ring and further substituents; Z 2  completes a quaternary 1H- pyrrol-2-yl or 1H-pyrrol-3-yl group, which may carry a fused-on aromatic ring or a quaternary 1- or 3-indolizinyl group; P and Q are each an organic group, at least one of which is CN, NO 2  or COOR where R is H or 1-4 C alkyl or P and Q together complete a heterocyclic ketomethylene nucleus; Ar is optionally substituted aryl; and X- is an anion but does not exist when the dye molecule itself contains an anionic group. The photoconductive substance may be inorganic, e.g. ZnO, or organic.
Patent GB-175208-A (GB)
Title: Improvements in tins for biscuits and the like
IPC: B65D43/00
Filed: 1921-03-24
Abstract: 175,208. Grant, A., and McVitie & Price, Ltd. March 24, 1921. Contents, viewing; lids; boxes formed of separate bodies combined in tiers.- A tin for displaying biscuits &c. comprises a shallow body a flanged at a<1> and a lid frame b flanged at b<2> with depending tongues b<1> adapted to be bent underneath the body a to hold the lid in place. A glass top is held between the flanges a<1>, b<2>. A plate b<3> is secured within the frame to carry a description of the contents or other information, the rim of the body being cut away at a<2> to accommodate this plate. More than one plate may be used, and the container may be partitioned into compartments over each of which a plate is situated. In a modification the container above described may be arranged to rest on the top of an ordinary deep tin, the depending tongues b<1> being arranged to clip the bcdy of the deep tin instead of being bent laterally. In a further modification, the bottom a of the shallow container is omitted and the cover rests directly on the deep body and is clipped thereto by vertically depending tongues.
Patent GB-798281-A (GB)
Title: Improvements in and relating to permanent magnet electrical generators
Inventor: GAYLER GEORGE ALFRED
IPC: H02K1/27
Filed: 1956-03-23
Abstract: 798,281. Machines with permanent magnets. WIPAC DEVELOPMENT, Ltd. Feb. 21, 1957 [March 23, 1956], No. 9187/56. Class 35. A generator rotor comprises a plurality of permanent magnets separated by laminated pole shoes 11 fixed in a rim 13 of non-magnetic material, e.g. aluminium or zinc alloy, and a steel plate 15 spaced by non- magnetic material from. the magnets and polepieces for connecting the rim to a central hub. As shown, the edge of the plate 15 as well as the other magnetic members is embedded in the cast material.
Patent GB-1351075-A (GB)
Title: Transfer sheet for making masters
IPC: B41M5/04
Filed: 1972-02-29
Abstract: 1351075 Transfer sheets G RITZERFELD 29 Feb 1972 [19 March 1971] 9294/72 Heading D2B A transfer sheet comprises a substrate 2 coated in two zones with ink coatings 3, 4 of different composition or thickness so that when used unit areas of the coatings transferred to a master sheet are capable of providing different quantities of image-generating material on copy sheets produced therefrom. A gap 6 may be provided between each coating and the coated layers may be covered by a protective layer 5. The ink coatings may each comprise Crystal Violet, waxes, oils and fats, and in addition one of the coatings may contain a solubility retarder e.g. barium sulphate or zinc sulphide. The transfer sheet may be used in hectography. In a modification, Fig. 5 (not shown), each coated zone is covered by a separate protective layer e.g. of a plastics material which is capable of providing good adhesion to a master sheet. In another modification, Fig. 6 (not shown) an additional carrier sheet is located between one coating zone and the substrate.
Patent GB-257847-A (GB)
Title: Improvements in or relating to doors for railway and other vehicles
IPC: B61D19/00
Filed: 1925-08-19
Abstract: 257,847. Cammell, Laird, &. Co., Ltd., and Bailey, A. S. Aug. 19, 1925. Doors for passenger vehicles.-In a railway, tramway, or like vehicle fitted with double sliding doors 2, the lock handles 1 on the doors, when the latter axe in the closed position, are disposed vertically one above the other, thereby reducing the amount by which the door projects into the doorway when in the opened position and at the same time allowing a maximum of space for the passenger's hand in opening and closing the doors. Specification 257,729, [Class 103 (iv), Railway &c. vehicles, Body details &c. of], is referred to.
Patent GB-367219-A (GB)
Title: Improvements in electrical tuning apparatus
IPC: H03J5/24
Filed: 1931-03-27
Abstract: 367,219. Inductances. FILLMORE, L. W. and FILLMORE, L. E., (trading as JACKSON BROS.), 72, St. Thomas Street, Borough High Street, London. March 27, 1931, No. 9358. [Class 37.] An electric tuning device such a s a variometer operates a switch by movement of the rotor. The Figure shows a cam 3, the raised part 4 of which is adapted to press on a hump 10 on one spring contact 6, which normally makes electrical connection with a spring contact 7, to open the circuit for one half of a complete revolution. The cam is mounted on the rear end of the spindle so as to give an increase from minimum to maximum over one half rotation, with the switch closed, and a decrease from maximum to minimum over the other half, with the switch open. The contacts 6, 7, are mounted one on each limb of an insulating block 5 of flat U-shape. In a modification two opposite sets of contact blades are operated, one in each half rotation. More than one pair of contacts may be mounted side by side, with an extended cam or additional cams, for simultaneous operation.
Patent GB-1046181-A (GB)
Title: 1-glycosyl-5-azacytosines
IPC: C07H19/12
Filed: 1964-03-05
Abstract: 1-Glycosyl-5-azacytosines are prepared by reacting a peracylglycosyl isocyanate with an O-(C1- 4 alkyl)isourea, condensing the 1 -peracylglycosyl - 4 - (C1- 4 alkyl) isobiuret formed with methyl or ethyl orthoformate and reacting the resulting 1 - peracylglycosyl - 4 - (C1- 4 alkoxy)-2 - oxo - 1,2 - dihydro - 1,3,5 - triazine with ammonia in methanol or ethanol.  The compounds of the invention possess cancerostatic and anti-viral properties.