baber/WOPTO huggingface dataset:
Patent GB-1243738-A (GB)
Title: Bonding rubber to textile materials
IPC: C08G14/06
Filed: 1969-01-23
Abstract: 1,243,738. Bonding rubber to textiles. DUNLOP HOLDINGS Ltd. 23 Jan., 1969 [23 Jan., 1968], No. 3842/69. Heading DIP. [Also in Division B2] A nylon or pretreated polyester cord is contacted with unvulcanised rubber containing an aromatic polyhydroxy compound, a formaldehyde generator and an isocyanate generator and the rubber is vulcanised, e.g. at 120‹- 190‹C. The polyhydroxy compound may be 1,5 naphthalene diol or resorcinal and is preferably present in an amount of 0.5-10% based on the weight of rubber. 0.5-8 moles of the formaldehyde generator and 0.05-2 moles of the isocyanate generator per mole of polyhydroxy compound may be added. Suitable formaldehyde generators are lauroxymethyl, cetoxymethyl and ethyl oxymethyl pyridinium chloride, hexamethoxymethyl melamine and hexamethylene tetramine. Phenylurethanes such as p,p'-(diphenylmethane)-bis-(phenylurethane), hexamethylene-bis-(phenylurethane), 2,4-tolylene-bis-(phenylurethane), and 4,4',4"- (triphenylmethane) tri(phenylurethane) are the preferred isocyanate generators. The cords may be coated with natural rubber, polyisoprene, polybutadiene or butadiene-styrene coploymers by this method.
Patent GB-120691-A (GB)
Title: An Improved Non-conducting Material.
Inventor: ILLEMANN ROBERT
IPC: C04B28/14
Filed: 1918-03-06
Abstract: 120,691. Illemann, R., and Montgomerie, J. A. March 6, 1918. Calcium sulphate.-A porous form of calcium sulphate is produced by adding calcined gypsum (plaster of paris) gradually to an excess of water, in the proportions of about 6 parts of water by measure to 1 part of gypsum, agitating the mixture until a plastic spongy mass is obtained, and then evaporating the excess water by the application of heat or under atmospheric conditions so that air enters the cells previously occupied by the excess water to form a porous insulating mass. Small proportions of slaked lime or silicate of soda or both may be added to facilitate setting, and a small proportion of mineral or vegetable fibre to strengthen the material. Specification 1289/70 is referred to.
Patent GB-211337-A (GB)
Title: Improvements in or relating to mortising machines
IPC: B27F5/06
Filed: 1923-02-09
Abstract: 211,337. Cooksley, A. Feb. 9, 1923. Mortising.-In mortising machines such as are described in Specifications 21093/13 and 161,907, a projection 12 on the tool slide is arranged to disengage the driving clutch 7 when the slide is raised to the top of its travel. At the same point a spring 21 presses the hand feed lever 4 into engagement with a notch 18. A second notch 19 is provided wherein the lever 4 may engage so as to lock the tool slide in a raised position without stopping the drive.
Patent GB-817475-A (GB)
Title: Spin echo technique and apparatus
IPC: G11C11/16
Filed: 1956-02-08
Abstract: 817,475. Reactance valve circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 8, 1956 [Feb. 10, 1955], No. 3940/56. Class 40 (5). [Also in Group XIX] In a circuit for decreasing the frequency of a 30 mc/s signal steadily by 4 kc/s per milli-second over a period of 3 milli-seconds, a variable reactance triode 63 forms part of the tank circuit of a Clapp oscillator, the output of which is fed to three doubling stages 50, 51, 52. Oscillation is initiated by a negative signal on a control lead 57, and as a result conduction in the triode is decreased and the frequency of the oscillator lowered. The circuit is described as part of a spin-echo storage system (.see Group XIX).
Patent GB-657371-A (GB)
Title: Improvements in or relating to electrical induction apparatus
IPC: H01F27/25
Filed: 1949-02-14
Abstract: 657,371. Transformers. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Feb. 14, 1949, No. 3965. Convention date, Feb. 13, 1948. [Class 38 (ii)] [Also in Group XXII] The method of making a looped magnetic core comprising two separate " U " shaped portions 4, 5 with abutting joints between their ends comprises winding upon itself in successive layers a ribbon of thin flat magnetic sheet to form a closed loop 2 about a window, strainannealing the wound loop, impregnating the, spaces between the successive layers of the magnetic material with bonding material and baking the core to harden the bonding material so as to bond the core loop 2 solidly together, cutting the core loop transversely at two places to form two U " shaped portions while applying a water emulsion thereto, heating the two portions above the boiling point of water to substantially remove all the residual water from the capillaries, mechanically cleaning the cut ends 15, 16 and coating these ends with a priming material 17 to prevent corrosion thereof. After the cutting operation the ends are smooth worked and etched to remove burrs, the " U " shaped portions being held together by a strap after the winding has been placed on the core.
Patent GB-470400-A (GB)
Title: An improved process for the extraction of hormones
IPC: A61K38/22
Filed: 1936-02-10
Abstract: Hormones such as those contained in urine, placenta, follicle fluid, or suprerenal cortex are obtained from their aqueous solutions by adding a soluble alkali silicate, and treating the solution with an acid, such as carbonic acid, gaseous hydrochloric acid, sulphuric acid, oxalic acid or tartaric acid, so as to form a silicic acid gel which adsorbs the hormone and is separated from the liquid.  The hormone is recovered from the adsorbate by direct extraction with a solvent, or the adsorbate may be re-converted to the sol form by addition of a small quantity of an alkali and the hormone extracted from the solution by means of an organic solvent such as ether or chloroform.  According to examples: (1) urine from pregnant mares is rendered acid by passing carbonic acid gas, treated with sodium silicate solution, and the silicic acid gel formed is filtered off, dried at low temperature and extracted with ether to obtain the hormone; the filtrate from the silicic acid gel may be again subjected to adsorption; (2) concentrated urine is repeatedly treated as in (1) until the filtrate no longer gives Cuboni's fluorescence reaction and the adsorbate is extracted either directly or after conversion to the sol form; (3) placenta is ground in a colloid mill, extracted with dilute aqueous hydrochloric or sulphuric acid at pH 5,5 to 5,6 and the extract centrifuged and treated as in (1) or (2).
Patent GB-1420131-A (GB)
Title: Electropolishing of drilled surgical needles
IPC: C25F3/16
Filed: 1973-01-26
Abstract: 1420131 Electro-polishing surgical needles ETHICON Inc 26 Jan 1973 [27 Jan 1972] 4102/73 Addition to 1314633 Heading C7B Surgical needles are electro-polished as claimed in the Parent Specification using an anode having an Au, Pd, Rh or Ir surface
Patent GB-849494-A (GB)
Title: Improvements in or relating to apparatus for use in determining or observing the operating characteristics of electrical resistance welding apparatus
Inventor: BIRKS ALAN WILLIAM
IPC: B23K11/24
Filed: 1956-02-09
Abstract: 849,494. Electric indicating systems. ROLLS-ROYCE Ltd. Feb. 11, 1957 [Feb. 9, 1956], No. 4144/56. Class 40 (1). Apparatus for continuously comparing the pressure. between the two electrodes of welding apparatus and the current flow on a doublebeam cathode-ray oscilloscope comprises a capacitative pressure transducer 10 (Fig. 1) controlling the frequency of an oscillator 12 whose output is fed through a frequency discriminator 13 to one plate 16 of the C.R.O. 17. and a current transformer 18 feeding another plate 20 of the C.R.O., the sweep of the C.R.O. being controlled by a timebase unit 21. A valve voltmeter 14 is available for the initial setting-up of the apparatus. The pressure transducer comprises an insulating block 46 (Fig. 3) mounted inside a body 35, carrying one electrode 48 which is connected to an insulated terminal 37. The other electrode 50 is mechanically and electrically connected to an earthed metal insert 38 by screws 52. The electrode assembly is surrounded by a water jacket 42 for cooling.
Patent GB-193399-A (GB)
Title: An improved method of and means for introducing and burning fuel in internal-combustion engines
IPC: F02B3/00
Filed: 1923-02-13
Abstract: 193,399. Lowe, E. L. Feb. 20, 1922, [Convention date]. Cylinders receiving liquid fuel. Fuel or a mixture of fuel and air is supplied through a nozzle 37 to a vaporizing and igniting device 20, which consists of two concentric sleeves 13, 16, the inner of which communicates by means of orifices 21 with the annular interspace. The outer sleeve may have a perforated end 14, or it may be wide open to the combustion chamber. Also, the sleeves may be tapered, the larger ends being towards the combustion chamber. Fuel is supplied through a helical heating passage 26 to the chamber 23, where it is mixed with air entering through an automatic valve 28. This air, in the case of a two-stroke-cycle engine, is trapped from a transfer passage delivering to the combustion space a charge from a pump. Water cooling arrangements may be provided around the fuel injector.
Patent GB-822076-A (GB)
Title: Improvements in indicators
IPC: G06G1/00
Filed: 1957-02-07
Abstract: 822,076. Calculating-apparatus. LOGAN, N. J. Feb. 7, 1957, No. 4205/57. Class 106 (1). A device for indicating equivalent values in different monetary systems comprises a sheet A on which juxtaposed scales D ... K represent currencies and a cursor L slidable on the sheet whereby equivalent values may be read off.
Patent GB-554320-A (GB)
Title: Improved method and means for forming and securing together a cutlery piece and its handle
IPC: B25G3/26
Filed: 1942-03-31
Abstract: 554,320. Cutlery handles. SHEFFIELD STEEL PRODUCTS, Ltd., and WALLACE, J. R. March 31, 1942, No. 4258. [Class 61 (i)] A knife &c. handle 1 is slotted at 2 extending from about half way along one edge of the handle to near the front end of the opposite edge and a similarly shaped tang 3 on the blade &c. 4 is secured in the slots by rivets passing through the holes 5.
Patent GB-661468-A (GB)
Title: Method of, and apparatus for, knotting threads, yarn and twines
IPC: B65H69/04
Filed: 1949-02-16
Abstract: 661,468. Knot-tying devices. ABRABER TRUST. Feb. 16, 1949 [March 10, 1948], No. 4299/49. Class 112. [Also in Group IX] A thrum knot is produced by forming a loop from at least two threads lying side by side by winding around a hook, pulling the ends through the loop by means of a second hook, and holding the ends while the knot is slipped off and tightened. In the device shown, for use in a hank-winding machine (see Group IX), the first hook, formed by two parallel resilient plates 11,12, is carried by a vertically slidable and rotatable shaft 14, and the second hook 13, shown in Fig. 6, projected through the thread loop preparatory to retracting the ends t, is pivoted to the plate 11 and normally lies concealed between the plates 11, 12; it is actuated by a link from a collar 20 slidable on the shaft 14. The various movements are derived from a horizontally reciprocating plate with cam slots engaging rollers on levers 45, 50, 55, Fig. 9, the levers 45, 50 engaging pins on vertical slides connected respectively to the collar 20 and to a head 26 on the lower end of the shaft 14, for producing vertical movements of these members, while the lever 55 reciprocates a plate 33 having rack teeth 32 which engage with teeth on the shaft 14 to rotate the latter. The device also includes a pivoted arm 9, linked to a lever 61 actuated by another slot in the cam-plate, and a slide 8, actuated by a cam slot 34 in the plate 33, these members 8, 9 serving to hold the threads T after they have been drawn across parallel to the hooks by two pairs of grippers (not shown): the member 9 also strips the completed knot off the hook 11, 12, while the thread ends are still held by the hook 13 to tighten the knot.
Patent GB-539285-A (GB)
Title: Improvements in and relating to chemical preparations for addition to motor spirit
IPC: C10L1/00
Filed: 1940-03-08
Abstract: 539,285. Fuel oils. GRUNDY, S. B. March 8, 1940, No. 4323. [Class 91] A preparation for addition to motor spirit for preventing "pinking" and for increasing the combustion value of low-grade spirit, comprises naphthalene and graphite with which a small proportion of xylidine is incorporated in the form of a fine spray, the resultant powder being compressed into tablet form. The graphite may be in colloidal form and may be added in paste form in a carrier such as lanoline. An example is given.
Patent GB-495850-A (GB)
Title: Improvements in or relating to connection link
IPC: B60C27/06
Filed: 1937-02-13
Abstract: 495,850. Hooks. AMERICAN CHAIN & CABLE CO., Inc. Feb. 13, 1937, No. 4361. Void. Convention date, Feb. 14, 1936. [Classes 44 and 89 (ii)] A chain connection assembly, particularly for use in anti-skid devices, comprises a member 1 having an opening therein to receive hooks, a spreader member 2 extending partially or wholly across said opening and a complemental member 4 having adjacent hooks 7 so spaced and formed as to provide therebetween a channel which is restricted intermediate its length to a width less than that of the member 2. The member 2 may be in the form of a loosely mounted ring, Fig. 1, or of a bar, Fig. 4, welded to the member 1. In another form, Fig. 5, the member 1 is in the form of a plate, apertures 21 in which receive the hooks, the spreader member being formed by the part 22 of the plate between the apertures 21.
Patent GB-579842-A (GB)
Title: Improvements in or relating to vaporisers for internal combustion engines
IPC: F02M21/00
Filed: 1940-03-08
Abstract: 579,842. Vaporizers. EGERTON, A. C. G., and PEARCE, M. March 8, 1940, No. 4369. [Class 7 (iii)] A vaporizer for use with a liquefied combustible gas, such as liquefied methane, comprises a vaporizing-chamber 11 to which the liquefied gas is admitted by a pipe 16 past a valve 19 controlled by the action of the engine suction on a diaphragm 31. A pipe 18 leads to the gas carburetter of the engine, and a pipe 17 to the vapour space above the liquefied gas in the container for the same, for example, as described in Specification 579,840, [Group XXVIII]. The liquefied gas falls on to the floor 12 of the chamber 11, which is heated by an exhaust chamber 13, or by the water from the cooling system, the floor 12 being preferably slightly inclined ; or the liquefied gas may fall on to a nest of tubes conveying heating-fluid. The pressure of the spring acting on the diaphragm 31 may be adjusted by means of a Bowden cable. A safety device for burning escaping gas when the engine is stopped may be provided in connection with the pipe 18 as described in Specification 579,841.
Patent GB-784490-A (GB)
Title: Aluminium oxide powder manufacture
Inventor: HANNON JOHN WILLIAM GUY
IPC: C01F7/422
Filed: 1955-02-14
Abstract: <PICT:0784490/III/1> <PICT:0784490/III/2> A powder comprising particles of which each has a nucleus of metallic aluminium surrounded by a heavy coating of a black aluminium oxide is prepared by grinding aluminium in a mill whilst drawing humid air thereover. The air contains sufficient water to give a product containing 12-15 per cent of aluminium but substantially no aluminium hydroxide and a graph is provided indicating suitable quantities.  The mill should be operated at such a speed as to produce particles less than 1.2 m  in size.  In the apparatus shown, a rotary mill is lined with aluminium liners 2 held in place by aluminium bolts 3 and is rotatably supported by hollow end journals 4 in bearings 5.  The aluminium is placed in the mill in the absence of balls and milled therein whilst a stream of suitably moistened air is drawn through the left hand end journal and carries off the desired particles as an entrained stream through the right-hand end journal into a settling chamber 10 provided with a baffle 11.  The finer particles which do not settle are passed into chamber 13 which contains a fine mesh filter cloth 19 on which the fine particles are held.  By shaking the cloth the product may be discharged through spout 18.  A fan 15 beyond the filter draws air through the apparatus in an amount controlled by cone valve 43.  The air drawn through the mill enters the apparatus through damper-controlled inlets 32 and 33 respectively provided with a heater 36 and dehydrating agent 38 such as silica gel.  The air is drawn into a chamber 25 containing a pan of water 26 heated by means of a series of elements such as 31, and having become suitably humidified passes into the mill. The humidifying device may be automatically controlled to maintain a constant predetermined quantity of moisture in the mill, and a recording device 40 may be provided.  To protect the apparatus and avoid production of an explosive product, a mercury switch 44 connected to a vane 45 permits power to be supplied to the mill motor and heaters 31 only when fan 15 is working.  The Specification refers to a mill speed of 38 r.p.m., an air velocity of 7 feet per min. and a humidity of 8 grains per cubic foot. Specification 784,489, [Group VI], and U.S.A. Specification 2,156,378 are referred to.
Patent GB-1146108-A (GB)
Title: Improvements in or relating to control device for rubber conveyor belts
IPC: B65G43/02
Filed: 1967-01-30
Abstract: 1,146,108. Endless conveyers. FRANZ CLOUTH RHEINISCHE GUMMIWARENFABRIK A.G. 30 Jan., 1967 [9 April, 1966], No. 4396/67. Heading B8A. A control device for detecting slits in rubber conveyer belts 1 of the type having transverse metal inserts 2 adapted to be connected to control circuits by means of stationary contact points, is characterized in that on passage of an insert through a first control point a time relay is energized and on passage of the same, unbroken, insert through a second control point the relay is de-energized. The time of travel of the conveyer belt between the two control points is less than the response time of the relay. When, however, the belt is slit, the time relay is not de-energized when the broken insert passes the second control point and consequently said time relay actuates a further circuit to produce an appropriate signal and/or stop the conveyer. The inserts 2 have longitudinally extending ends 3a, 3b along the edges of the belt and said first control point comprises two pairs of contacts, one of each pair being disposed on opposite sides of the belt. One pair of contacts 4b, 4c are short circuited and the other pair are connected into a circuit St 1 whereby on the passage of a broken or unbroken insert through said control point the circuit is completed through the ends of the inserts and the short-circuited pair of contacts. The completed circuit energizes a relay R to energize a step switch S which in turn moves switch arms S 1 , S 2  to the dotted line position and thus energizes the time relay Z and breaks the circuit St 1 . If the insert is broken the time relay Z will remain energized when the insert passes through the second control point. On the other hand if the insert is unbroken the circuit St 2  will be completed through the contacts 5a, 5b and the insert, to re-energize the relay R and move the step switch S to the position shown and thereby de-energize the time relay Z.
Patent GB-885772-A (GB)
Title: Improvements in apparatus for testing electric circuits
Inventor: CLYDE ALEXANDER KENNETH
IPC: G01R19/14
Filed: 1957-02-08
Abstract: 885,772. Indicating phase sequence; testing three-phase systems. TILTMAN LANGLEY Ltd. Feb. 10, 1958 [Feb. 8, 1957], No. 4461/57. Class 37. In a device for testing a three-phase electricity supply, three lamps are connected, either continuously or selectively, to the respective phases to check the continuity thereof; and two lamps and a reactance are connected in star across the phases to check the phase rotation of the supply. Neon lamps L1, L2, L3, connected in delta across the respective supply phases, provide an indication of discontinuity in any line ; the two lamps connected to that line being extinguished. A star connection comprising neon lamps L4, L4, and a capacitor C indicate phase rotation; one or other of the lamps L4 being extinguished according to the direction of rotation. In another embodiment, Fig. 5 (not shown), the delta circuit L1, L2, L3 is replaced by a star circuit comprising lamps L4, L4 and a third lamp in parallel with capacitor C; the third lamp or capacitor being selectively connected in the star circuit by a two-way switch so as to check continuity and phase rotation respectively. The neon lamps may be replaced by filament lamps; both lamps will then be lit when checking phase rotation, that connected to the leading phase glowing more brightly. An inductance may replace the capacitor C.
Patent GB-1382581-A (GB)
Title: Coumarin-based quaternary salts
IPC: C07D311/16
Filed: 1971-02-11
Abstract: 1382581 N - {3 - [4 - (coumarin - 3 - yl)- phenyl] - 1,2,4 - oxadiazol - 5 - yl} - quaternary salts HICKSON & WELCH Ltd 10 Feb 1972 [11 Feb 1971] 4465/71 Heading C2C [Also in Division D1] Novel salts have the general Formula (I) wherein R 1  and R 2  are each, independently, H or an optionally substituted alkyl group; R 3  is a non-chromophoric group (e.g. H, halogen, alkyl or alkoxy); R 4 , R 5  and R 6  are the same or different and each is an optionally substituted alkyl group; or R 4 , R 5  and R 6  together with the adjacent N-atom from an optionally substituted aromatic ring; or two of R 4 -R 6  together with the adjacent N-atom form a non- aromatic, optionally substituted heterocyclic ring with the remaining group of R 4 -R 6  being an optionally substituted alkyl group; A is an alkylene or arylene group; m is 0 or 1; X is the anion of an organic or inorganic acid, and n is the valency of X. The salts of Formula (I) are prepared (a) by reacting a compound of Formula (II)  wherein X is halogen with an amine, NR 4 R 5 R 6 ; or (b) by quaternization of the corresponding tertiary amine (Formula III) (except in the case where the N-containing heterocyclic ring is aromatic); or (c) by reacting a compound of Formula (IV) with a diazonium salt of Formula (V) Compounds of Formulae (II) and (III) may be prepared by cyclization of the corresponding amidoxime of Formula (VI) with the appropriate functional derivative of a carboxylic acid (e.g. X-(A) m -COOH) or by reacting a compound of Formula (IV) with the appropriate diazonium salt. The examples describe the preparation of specific pyridinium chlorides, piperidinium chlorides and quaternary ammonium chlorides, bromides, iodides, and methosulphates. The salts of Formula (I) are used as optical brighteners for textiles.
Patent GB-1212443-A (GB)
Title: Fuel injector for internal combustion engines
Inventor: BERLYN MARTIN JOHN
IPC: F02M61/16
Filed: 1968-01-29
Abstract: 1,212,443. Fuel injectors. CLAYTON DEWANDRE HOLDINGS Ltd. April 18, 1969 [Jan.29, 1968], No.4488/68. Heading F1B. A fuel injector of the multiple orifice type includes a spring-biased valve member 30, Fig. 1 engaging a seating 18 and having, on the outlet side of the seating, a piston 32 having a fuelthrottling fit in a bore leading to the nozzle tip and the injector also having means 40 for creating a rotary swirl in the fuel flow. The swirl-creating means may comprise helical or inclined grooves formed in the piston periphery or be tangential spray ports formed in a tubular valve guide.