baber/WOPTO huggingface dataset:
Patent GB-145972-A (GB)
Title: Improvements in and relating to electric induction apparatus
IPC: H01F27/30
Filed: 1919-06-23
Abstract: 145,972. British Thomson - Houston Co., (General Electric Co.). June 23, 1919. Transformers.-In stationary induction apparatus having concentric windings, individual spacing-elements 21 are placed tangentially against the inner winding with their respective edges supporting the outer winding in order to lengthen the creepage path between the windings. The Figures show a transformer in which one terminal of the high-voltage winding is earthed. The high-voltage winding comprises a number of coils 14, 15, 16 of varying diameters, the winding 14, which has the highest potential, having the smallest diameter and being spaced furthest from the core. The spacing-elements 21 are given a stepped form, Fig. 4, to correspond with the varying diameters of the coils. The low-tension winding 18 is of cylindrical form and is provided with an insulating-cylinder 20 against which the elements 21 bear. The windings are surrounded by oil or other insulating-fluid. Specification 14892/13, [Class 39 (i), Electric lamps, Arc &c.], is referred to.
Patent GB-570023-A (GB)
Title: Improvements in latches and combined locks and latches
IPC: E05B15/00
Filed: 1943-09-27
Abstract: 570,023. Latches. EREBUS MANUFACTURING CO., Ltd., JAMES, J. E., and GLOTHAM, A. Sept. 27, 1943, No. 15778. [Class 44] The runner plate B of a latch is built up from a number of layers of metal secured together by rivets C; the teeth b may be formed before assembly or machined afterwards. The follower pinion D comprises a central portion a having journals d<2> at each end and flats d3 on its periphery on which discs E are pressed against the shoulder d<1> and retained by a ring F. The teeth e may be formed before assembly or machined afterwards. Specification 507,662 is referred to.
Patent GB-597218-A (GB)
Title: Improvements in or relating to resinous electrically insulating compositions and to electrical apparatus impregnated therewith
IPC: H01F41/02
Filed: 1944-08-18
Abstract: A polymerizable composition comprises a solvent composed of from 10 to 300 parts by weight of a liquid vinyl or vinylidene monomer and 100 parts by weight of a half ester of castor oil or castor oil derivatives and an unsaturated alpha-beta dicarboxylic acid.  It is preferred that the half-ester comprises from 2 to 4 parts by weight of castor oil or castor oil derivatives and one part by weight of an unsaturated dicarboxylic acid and that the free carboxyl group be esterified with an aliphatic alcohol.  The vinyl monomer may be styrene, vinyl acetate or methyl methacrylate.  Specified unsaturated dicarboxylic acids are maleic acid and anhydride.  The composition may also contain 300 to 400 parts by weight of the reaction product of tung oil or oiticica oil and an unsaturated alpha-beta dicarboxylic acid, and/or up to 100 parts by weight of the reaction product of a polyhydric alcohol, an unsaturated alpha-beta dicarboxylic acid and a saturated dibasic organic acid having from 6 to 10 carbon atoms in the aliphatic chain.  When this second addition is present, a further amount of from 10 to 30 parts of the solvent liquid monomer is also added.  The reaction product may comprise 100 parts by weight of tung oil or oiticica oil and from 20 to 25 parts by weight of the unsaturated alpha-beta dicarboxylic acid and from 20 to 100 parts by weight of the reaction product of equimolar quantities of a polyhydric alcohol and dicarboxylic acids at least 50 per cent of the dicarboxylic acids having from 6 to 10 carbon atoms in the aliphatic chain.  The mixtures may be stabilized by the addition of 0.02 per cent of an antioxidant such as hydroquinone.  A catalyst such as benzoyl peroxide is added and the liquid polymerized by heat.
Patent GB-552699-A (GB)
Title: Apparatus for the degreasing of metal and like articles with liquids or vapours
IPC: C23G5/04
Filed: 1941-12-10
Abstract: 552,699. Extracting fats &c. JESSON, W. F., ROSS, H. J., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Dec. 10, 1941, No. 15908. [Class 91] [Also in Group XXX] Conveying apparatus for de-greasing metal and like non-absorbent articles comprises two parallel L-section tracks 8 along which roll perforated containers 20 under the control of fingers 14 projecting from an endless moving chain 9. The containers 20 are filled with the articles by way of a removable end, and are surrounded by bands against which the fingers 14 bear. The rims of the containers may be serrated to mesh with similar serrations on the tracks 8. The cleansing liquid, which may be trichloroethylene, fills a sump 2 in which lies a steam-heated coil 3 so that the containers are immersed in a bath. of vapour which, however, is prevented from: reaching the higher parts of the casing 7, in which the conveyer is housed, by condensing coils 4, 5. The containers enter at a door 10 over a gate 24 automatically actuated by the descending finger 14 at the right moment to receive such container on its upper surface, guides 17 co-operating with the tracks 8 to steer the containers. When the container reaches the horizontal portion of the track the fingers 14 leave it and advance to push the preceding container forward and up the draining incline to leave the apparatus by an exit 11. Abutment platforms 15, 16, 23 are provided to buttress the fingers 14 through the working traverse of their path. Specification 549,689 is referred to.
Patent GB-179087-A (GB)
Title: Improvements in and relating to steel structures
IPC: E04H12/22
Filed: 1921-06-09
Abstract: 179,087. Dawson, Sir P., and Fawdry, F. W. June 9, 1921. Columns .-The parts of steel structures that are embedded in concrete are protected from moisture, where they emerge from the concrete, by a coating or sheathing f of lead, the upper edge of which is soldered or burnt on to the steel. The sheathing may be provided with a capping g. The invention is applicable to transmission-line towers, signal and wireless masts, stanchions, and railway and tramway supports.
Patent GB-457613-A (GB)
Title: Improvements in and relating to apparatus for removing lengths from a moving strip of glass
IPC: B65G49/06
Filed: 1935-06-01
Abstract: 457,613. Cutting sheet glass. PILKINGTON BROS., Ltd., 703, Tower Building, Water Street, Liverpool, and GASKELL, J., Stockswell, Hard Lane, St. Helens, both in Lancashire. June 1, 1935, No. 15978. [Class 56] Relates to apparatus for cutting- off lengths from a strip of glass as it rises from the leer of a drawing-apparatus of the vertical type. According to the invention, a pivoted frame receives the rising strip and, as soon as the glass is cut, swings downwards into the horizontal position where the cutoff section is carried off the frame which then returns to the vertical position. The strip of glass 1, as it rises vertically, passes over an idle roller 2 and a driven roller 3 and is engaged by two pairs of rollers 4, 5 and 6, 7. These rollers, which are driven from the roller 3, are carried by a frame 8 which is pivoted on the shaft 9 of the roller 3. The frame is rotated between the vertical and horizontal positions by an hydraulic cylinder 15 acting through a link 12 and a crank 11. The operation of the cylinder is controlled by an electric circuit that includes a switch 50 which is engaged by the forward edge of the glass strip 1. In operation, the glass is scored transversely by a cutting device of the kind described in Specification 456,822. and as soon as the scored line is opposite the point of contact with the rollers 3, the front edge of the glass moves the switch 50. The cylinder 15 then swings the frame 8 into the horizontal position, and in so doing snaps the glass along the scored line. In the horizontal position, the rollers 5 and 7 are forced apart from the rollers 4, 6 respectively, and the cut-off length of glass is carried off rapidly from the frame by means of rollers 17. As soon as the moving glass passes beyond the switch 50, the stroke of the cylinder is reversed and the frame 8 is restored to the vertical position in time for the rollers 4, 5 to receive the edge of the rising glass. In a modification, the rollers 4, 6 are driven through free wheel clutches, and in the horizontal position of the frame these rollers are driven at higher speed by a chain which engages sprocket wheels on the rollers. The removal of the glass may also be effected by gravity, the frame being turned from the vertical through an angle greater than a right angle.
Patent GB-555927-A (GB)
Title: Improvements in or relating to electrical control systems
IPC: B30B15/18
Filed: 1942-11-12
Abstract: 555,927. Hydraulic presses. FORRESTER, H. J. C. (Hydraulic Development Corporation, Inc.). Nov. 12, 1942, No. 15998. [Class 69 (ii)] An electrical control system for a hydraulic press is constructed to ensure safety of the operators by arranging that when the press is set to cause automatic repetitions of the press actuation an emergency switch is operable which causes the plunger to return to its retracted position and remain in that position. Power liquid is fed to and from the cylinder 1 by a pump 6 which is controlled by a servomotor 8 and a control rod 9 acted upon by a spring 10 which sets the pump to deliver into a pipe 7 and so cause retraction of the piston 2 and platen 4. The pump 6 is connected to a reservoir 16 by a shuttle valve 13. The rod 9 is actuated to cause descent of the piston when an electromagnet 46 is energized. A switch 28 is closed when the device is to be actuated automaticaliy to give repetitions, but before the magnet 46 can be energized switches 50, 51, 52, 53 must be closed each pair being under control of an operator who must be clear of the press when actuating the switches. One pair 52, 53 may be byepassed by a circuit with a switch 54 which is closed when one operator only works the press. On operation of the switches 50... 53 an electromagnet 33 is energized and operates a switch with three contacts 38, 39, 40. The closing of contact 40 energizes an electromagnet 26 and closes a switch 24 which presets the system for a further operation of the press after the one which takes place from the position of the piston 2 shown in Fig. 1. The closing of contact 39 causes energization of the magnet 46 and setting of the pump 6 for delivery via pipe 5 to the upper end of cylinder 1. The closing of contact 38 establishes a holding circuit for the electromagnet 33 so that the contacts 38, 39, 40 remain closed until the holding circuit is broken by the operation of a tonnage control valve 35. The electromagnet 46 is thus de-energized and spring 10 causes reversal of the pump and retraction of the piston 2. On completion of this a projection 21 on the platen 4 operates a limit switch 22 to close the circuit of the electromagnet 33 and thus close the switch 38, 39, 40 to cause a repetition of the operation but this takes place only if the switch 28 is closed. The press can be stopped at any time by operation of an emergency switch 65, and an oil temperature switch 66 also acts as a safety device, and operation of these causes return of the press to starting position without continuation of operation. In a modified form the circuits are modified by arranging the limit switch 22 in series with the push buttons 50 ... 53 instead of being in parallel therewith, and in this case the switch blade 40 is eliminated.
Patent GB-1096031-A (GB)
Title: Improvements in or relating to developing latent images
Inventor: EKMAN CARL FREDERICK WAYNE
IPC: G03G9/06
Filed: 1965-04-14
Abstract: 1,096,031. Photographic process. ITEK CORPORATION. April 14, 1965, No. 16066/65. Headings G2C and G2H. Images formed by imagewise exposing a metalcontaining semi-conductor are developed by treating the semi-conductor with, in order, (a) a solution of a metal ion which is at least as strong an oxidizing agent as cupric ion, to form a latent metal image thereon; (b) a solution of a reducing agent for the metal ion, an acid which forms a soluble salt with said metal ion, and optionally a wetting agent, to intensify the latent image; and optionally (c) a solution of a solute which complexes any excess metal ion, to fix the image. Suitable metal ions are Ag, Au, Pt, Pd, Cu, Hg; and reducing agents are hydroquinone, chloro-dichloro-, and bromo-hydroquinone, pmethylamino phenol sulphate, 1-phenyl-3-pyrazolidone, 2, 4-diaminophenol hydrochloride and p-phenylenediamine.
Patent GB-221584-A (GB)
Title: Improved ventilating system for enclosed passenger vehicles
IPC: B61D27/00
Filed: 1923-06-21
Abstract: 221,584. Prescott, A., and Barker, J. P. June 21, 1923. Forced ventilation; ventilating vehicles.- The ventilating means B, B<1> of the traction motors A, A' of electrically - propelled rail or road vehicles are connected by a duct C from which branches a second duct C' leading to screened orifices E in the ceiling or roof of the car body so as to withdraw the vitiated air therefrom. In the case of motors in which reversal in the direction of rotation reverses the air flow across the armatures, the motors are crosscoupled as shown in Fig. 4, a valve H being fitted at the intersection of the ducts. The valve, in the case of tramcars, may be mechanically connected to the doors or folding platform steps. The down duct F, Fig. 3, may be formed by the skins G, G' of the transverse bulkhead.
Patent GB-958851-A (GB)
Title: Improvements relating to transportable endless-belt type conveyor elevators
Inventor: DEARDEN BRIAN BURTON
IPC: B65G21/00
Filed: 1962-04-27
Abstract: 958,851. Endless conveyers. C. H. JOHNSON (MACHINERY) Ltd. April 3, 1963 [April 27, 1962], No. 16096/62. Heading B8A. A transportable endless belt type conveyer elevator has its bottom drum 3 driven by a power unit 7 through a flexible transmission shaft 8 and a worm type gear-box 6 where the output shaft 11 (Fig. 1) of the gear-box 6 and the drum shaft 4 are connected together as one, or are ono and the same shaft 4 (Fig. 5), this shaft is carried by.(Fig. 1) one self aligning bearing 9 or (Fig. 5) two such bearings 14, 15, which bearing or bearings may be adjustable in the plane of one or both of the boom side walls 1, 2 to align the bottom and top drums. One or more flexible torque arms 10 (Figs. 1, 4) or 18 (Fig. 6) is or are provided.
Patent GB-828015-A (GB)
Title: Improvements in or relating to low pressure electric discharge lamps
Inventor: WILLIAMS CHARLES EDINGTON
IPC: H01J61/72
Filed: 1957-05-21
Abstract: 828,015. Discharge lamps. GENERAL ELECTRIC CO. Ltd. May 21, 1958 [May 21, 1957], No. 16120/57. Class 39(1). A low pressure mercury vapour-rare gas fluorescent discharge lamp has the mercury from which the mercury vapour filling is derived entirely in the form of an amalgam with another metal or alloy, no free liquid mercury being present within the discharge envelope. The amalgam can consist of 4 parts of cadmium and 20 parts of mercury by weight or of mercury and silver, copper, gold, tin, aluminium, lead or zinc. The amalgam can be in the form of a solid body mounted in a fixed position within the envelope, e.g. a disc or plate mounted behind an electrode, or in the form of a coating on a base member mounted in a fixed position, or in pellet, foil or powder form. In manufacturing the lamp the mercury can be introduced into the envelope in the form of an amalgam, e.g. as a pellet, or can be introduced into the envelope in liquid form, the amalgamating metal or alloy being introduced into the envelope separately to form an amalgam. The rare gas filling can consist of argon, neon and argon, or neon alone at a pressure of 2 mms.
Patent GB-554691-A (GB)
Title: Improvements relating to the regeneration of fouled catalysts
IPC: B01J38/12
Filed: 1941-12-15
Abstract: 554,691. Regenerating catalysts. GAS LIGHT & COKE CO., GRIFFITH, R. H., PLANT, J. H. G., and INMAN, C. J. Dec. 15, 1941, No. 16176. [Class 1 (i)] Catalysts are regenerated in a stationary bed in a well-lagged vessel heated at one end to initiate combustion and into which a current of air is passed at that end at just sufficient velocity to cause a restricted hot zone to travel through the bed in the same direction as the stream of gas. The apparatus comprises a lagged cylinder a with removable cover d provided with an air supply pipe e and electrical heating element f. The combustion products are withdrawn through perforations m, and the catalyst when regenerated is removed through valve c.
Patent GB-289280-A (GB)
Title: Process for the oxidation of aldoses
IPC: C07C59/105
Filed: 1927-06-17
Abstract: 289,280. Ellis, G. B., (Chemical Works, formerly Sandoz). June 17, 1927. Monocarboxylic acids of aldoses. - In the oxidation of aldoses to the corresponding monocarboxylic acids bv means of hypochlorites in the presence of suitable bromine or iodine derivatives, an alkaline medium is used throughout the process, which is conducted at a temperature of 15‹ C. or below. In examples, gluconic acid is produced by oxidizing glucose by means of chlorine in the presence of excess caustic potash lye or milk of lime and a small quantity of sodium bromide. According to other examples, glucose is oxidized by means of chlorine in the presence of bromine and excess of magnesia usta, and galactose by means of chlorine in the presence of bromine and excess of milk of lime. In a further example lactose is oxidized in the presence of iodine and milk of lime by means of chlorine. Mannose and maltose may be similarly oxidized.
Patent GB-108411-A (GB)
Title: Improvements in and relating to Submersible Vessels.
Inventor: KING ROBERT OWEN
IPC: B63G8/18
Filed: 1916-11-14
Abstract: 108,411. King, R. O. Nov. 14, 1916. Submarine vessels, special apparatus for steering.-The hydroplanes on each side of a submarine are mounted on disks or drums secured to a single transverse shaft, so arranged that they may be inclined for steering or may be folded either about an horizontal axis or in a horizontal plane. In the form shown in the Figures, the planes 8 are hinged to disks 2 rotatable in the superstructure 1, by means of pairs of worms 5 engaging toothed segments 7. Each plane has a pair of arms provided with toothed quadrants 9 engaging worms 10 on shafts 11 journaled in the struts 2<1> connecting the two disks. The two worm shafts are connected by bevel-gearing 12 to a shaft 13 carrying a worm-wheel 14 meshing with a worm 14<1> loosely mounted on the shaft 15 connecting the disks and rotated by a shaft 18 acting through bevel-gearing 17. The leading edges of the planes are connected by a bar 19 passing through slots in the superstructure. In a modification, a single worm is used for each pair of planes and is rotated by a bevel-wheel loosely mounted on the shaft connecting the two drums. In a further modification, a similar arrangement of gearing is used to fold the planes on a vertical axis into recesses in the superstructure.
Patent GB-1203553-A (GB)
Title: Speed recorder of the voltmeter type for motor vehicles
IPC: G01P1/12
Filed: 1969-03-28
Abstract: 1,203,553. Speed recorder. DAIKIN SEISAKUSHO K.K. and T. UCHIYAMA. March 28, 1969 [March 28, 1968], No.16416/69. Heading G1J. A speed recorder comprises a voltmeter 5 operated by a voltage proportional to the speed of a vehicle, a recording needle 18 of the dotting type mounted on the rotary shaft 11 of the voltmeter, a multi-vibrator 20 and an electromagnet 19 which is actuated by the multi-vibrator a supporting member 17 of the recording needle being adapted to be vibrated by the electromagnet. Shaft 11 of voltmeter 5, carries indicating needle 6 over scale 7 at one end and support member 17 carrying dotting needle 18 at the other. Support member 17 carries iron pieces 21 attracted by annular electromagnet 19. Recording paper is carried from reel 27 in hinged paper support 28 over recording support 29 and into chamber 32 by a timepiece driven sprocket 31.
Patent GB-570537-A (GB)
Title: Improvements in insecticides
IPC: A01N65/20
Filed: 1943-10-07
Abstract: In improving the stability of powder or other solid derris insecticides containing a non-basic relatively non-volatile liquid as activator, conditioner or solvent, by the addition of a small proportion of an acid as claimed in the parent Specification, the acid employed is sulphamic acid.  According to examples, insecticidal powders consist of (1) napthalene, ground derris root, high-boiling tar acid, talc or china clay and sulphamic acid and (2) ground Lonchocarpus root, cotton seed oil, pyrophyllite and sulphamic acid.
Patent GB-830725-A (GB)
Title: Improvements in pneumatic percussion tools
IPC: B25D9/00
Filed: 1958-05-22
Abstract: 830,725. Percussive tools. ATLAS COPCO A.B. May 22, 1958 [June 4, 1957], No. 16472/58. Class 124. A pneumatic percussive tool comprises a cylinder casing, a valve casing at the rear of the cylinder casing, an intermediate casing at the front of the cylinder casing, a back head and a front head stapled one upon the other and fitted within a tube, lands on the cylinder casing co-operating with the inner surface of the tube. As shown, a drill comprises a back head 1 having two handles, valve casings 4, 5, a cylinder casing 3, and intermediate casing 6 and an anvil block casing 7 held together axially by bolts and fitted within a tube 14. Lands 8, 9, 10 on the cylinder casing form, with the tube 14, an air receiving space 20 and an exhaust space 21, a further exhaust space 69 being formed between lands 11, 12 on the intermediate casing and the tube. An oil reservoir 22 may be formed between land 12 and a further land 13 on the anvil casing. Air for operating the drill passes through ports 70, 71, 72 in the cylinder casing and valve casing from the space 20. In one modification, Fig. 3 (not shown), the intermediate casing is situated within the cylinder casing, and in another modification, Fig. 5 (not shown), the drill is fitted with a ratchet mechanism to rotate the drill steel.
Patent GB-420420-A (GB)
Title: Improvements in and relating to hot water systems
IPC: F24D3/08
Filed: 1934-06-02
Abstract: 420,420. Heating water. ZOPICK, A., 3, Dessauerstrasse, Zehlendorf-West, Berlin. June 2, 1934, No. 16509. Convention date, June 2, 1933. [Class 64 (i)] In supplying hot water from a heat-exchange unit A employing the heat-carrying medium, normally water, of a central heating system circulating from a boiler B through an expansion tank D and down through the radiators O and heater A, the latter is connected in parallel with the radiators O and with its major extent above the level of the radiators, so that on flow of cold water into the base b of the coil in the heater A in counterflow to the medium of the heating system, the stratification of the medium is not disturbed. Heated water passes from the coil in the heater A through a degasifying chamber F, and, if the gas is corrosive, the water is passed to the outlet c through a cooler G in indirect contact with cold water entering. A heat-insulated reservoir H for the heat-carrying medium may be connected in parallel with the heater A, which is also heat-insulated.
Patent GB-1338489-A (GB)
Title: Band pass filters
IPC: H03H11/12
Filed: 1971-05-24
Abstract: 1338489 Bandpass amplifiers and active filters VADIC CORP 24 May 1971 [24 Aug 1970] 16547/71 Headings H3T and H3U In an active bandpass filter comprising a feedback network which includes a reactance 13, the resonant frequency is varied without changing the gain or bandwidth by a variable impedance coupled to the feedback path. The variable impedance may be a number of switched resistors 22, 23, 24 selectively switched into the circuit by switches 26, 27, 28. The switches may be transistors (e.g. 32, Fig. 2, not shown).