baber/WOPTO huggingface dataset:
Patent GB-422272-A (GB)
Title: Improvements in signalling devices for motor and like road vehicles
IPC: G10K9/04
Filed: 1933-07-07
Abstract: 422,272. Momentary-contact switches. PAGE, L., (Representative of PAGE, G.), 76, Manville Road, Balham, London. July 7, 1933, No. 19280. [Class 38 (v)] [See also Group XXXVIII] Switch mechanism for actuating a multinote warning-horn for motor road vehicles comprises a cylindrical member 17 housing a spring pressed plunger 18 and provided with a pair of terminals 24, 25 in circuit with a battery 26 and fan motor 1 and with four terminals 27 in circuit with the battery and solenoids 13 which when energized actuate spring pressed discs each of which normally closes one end of a cylinder in which a note producing device is located. In operation, when the plunger is pressed inwards it is first brought into contact with terminal 25 thereby completing the circuit of motor 1 whilst continued depression of the plunger brings the projection 31 thereon into successive contact with terminals 27 thereby completing a circuit through the battery and the respective solenoids.
Patent GB-1011591-A (GB)
Title: Improvements in silica articles resistant to devitrification
IPC: H01J5/12
Filed: 1962-05-18
Abstract: 1,011,591. Gettering discharge lamps. GENERAL ELECTRIC CO. May 18, 1962 [May 25, 1961], No. 19291/62. Heading H1D. A fused silica body, such as the envelope of a high-temperature discharge lamp, having at least one surface isolated from the atmosphere, is provided with a getter consisting of chromium or silicon, which form oxides having a dissociation pressure no greater than 10<SP>-18</SP> torr. at temperatures not less than 1000‹ C., to prevent devitrification of the silica by reacting with any oxygen which may infuse into or be present in the silica. Preferably a thin coating of silicon is deposited on the isolated surface of the silica. In the double-walled lamp shown, the getter 26 is placed in the space between the silica inner envelope 20 and the outer jacket 25.
Patent GB-685983-A (GB)
Title: An improved device for use in testing milking machine teat cup inflations
IPC: A01J5/08
Filed: 1951-08-17
Abstract: 685,983. Testing physical qualities of rubber teats. PASSMORE, R. S. Aug. 17, 1951 [Aug. 28, 1950], No. 19423/51. Class 106 (ii). Means for testing the strength of rubber sleeve units, such as milking machine teats, comprises a pair of arms 10, 11, Fig. 1, pivoted together and formed at their extreme ends with work-engaging means 15 normally spring-biased apart, there being a scale 24 and pointer 22 associated with the arms and the whole being so arranged that the work-engaging ends of the arms can be closed together and inserted into the rubber tube and, on their release, move apart against the elasticity of the tube, the movement of the arms being indicated on the scale as a measure of the quality of the tube. The pointer 22, Fig. 5, is urged against the handle 12 of the arm 10 by a spring 25 and the handle 12 is urged to the right by a spring 18 tending to move the arms 10, 11 apart. The pointer 22 may be correctly aligned to its zero position when the handles 12, 13 are spread to their normal open state, by inserting a screwdriver through a hole 21 in the handle 13 and adjusting a tensioning-screw 20 for the spring 18.
Patent GB-1094337-A (GB)
Title: Improvements in or relating to methods and arrangements for setting up and adjusting a current for charging an inductive element
IPC: G05F3/08
Filed: 1965-05-07
Abstract: 1,094,337. Superconductors. COMPAGNIE FRANCAISE THOMSON HOUSTON - HOTCHKISS BRANDT. May 7, 1965 [May 8, 1964], No. 19449/65. Heading H1K. An inductive element made of superconducting material is charged by mounting it in parallel with a variable resistor across a source capable of delivering a constant direct current of adjustable magnitude. The source is initially set to deliver a current in excess of that desired in the inductor and the charging rate is reduced when the current in the inductor approaches this value either by adjusting the resistor to increase the time constant of the circuit or by resetting the source to deliver a smaller current. When the current reaches the desired level the inductor is short-circuited. This is normally done by rendering the variable resistor superconductive. The current may be reset by the same method.
Patent GB-941589-A (GB)
Title: Improvements in method of making a printed circuit
Inventor: GREENMAN NORMAN LAWRENCE
IPC: H05K3/04
Filed: 1961-05-30
Abstract: 941,589. Printed circuits. ROGERS CORPORATION. May 30, 1961, No. 19472/61. Heading H1R. A method of making a printed circuit comprising the steps of applying a metal foil to an uncured fibrous base embodying a curable resin; stamping the material with an embossed die to embed a desired circuit pattern in depressions below the surface of the base, the side walls of the depressions being free of foil; removing the unwanted foil on the surface of the base; and curing the resin in the base. A base 12 which may be formed wholly or partly from fibres, for example cellulose, glass, asbestos, polyamide, polyester or aluminium oxide, is impregnated with a resin such as phenolic formaldehyde, melamine, polyester, urea formaldehyde, silicones, epoxy resin, and bonded to a copper foil 16 by an adhesive film. The base is then placed in a die 10 having projections 24 which embed part of the foil into the base, the side walls of the depressions 28, Fig. 3, formed, being free of metal. The surface foil is removed, and the printed circuit placed in a mould 30, 32, Fig. 4, the upper half of which is shaped to correspond with the punch, and the lower half of which is provided with projections 36 aligned with projections 38 in the upper half and arranged to meet to form holes through the base. Continuous projections 42, 44 are also provided delineating the outer periphery of the board during the moulding operation. The outline delineated by these projections may take any shape, such as that shown in Fig. 5. The moulding and curing results in a resin skin covering the external surfaces of the board, and also cures the adhesive on the metal foil to effect secure bonding. A subsequent baking operation may be employed to ensure completion of bonding and curing. The moulding process may result in a plane board as shown, or may produce a three-dimensional shape, such as a board with ribs.
Patent GB-582971-A (GB)
Title: Automatic brake shoe adjusting mechanism
IPC: F16D65/52
Filed: 1944-10-10
Abstract: 582,971. Adjusting brake shoes. SCHNELL, S. Oct. 10, 1944, No. 19505. [Class 103 (i)] Brake shoe adjustment is effected by a member rotatably mounted on the shoe and engaging a stop whereby it is turned as the shoe moves to and from the drum, means being provided for preventing further rotation of the member and thus further retracting movement of the shoe when the shoe has moved a predetermined distance from the drum. A rotatable member or lever 10, pivoted on the shoe 3 at 11 has a pin 12 which is normally held by a spring 16 against one end of a slot 13 in a member 14 fixed to the back plate. The lever 10 meshes with a toothed wheel 19, the spindle of which is mounted in the shoe and carries a brake disc 21, rotation of which, and thus of the lever, is normally prevented by engagement therewith of the extension 26 of a member 24 slideable radially in a slot in the shoe web 6 and urged against the drum by a spring 30. When the shoe is moved towards the drum, the disc 21 moves away from the extension 26 and as the pin 12 is held, the lever turns about its pivot 11. When the clearance D between member 24 and the shoe web has been taken up, the shoe contacts the drum and also presses the member 24 against the drum so that the member is subject to the same wear as the shoe lining 8. When in releasing the brake, the shoe has returned a distance equal to the clearance D, the extension 26 will re-engage the disc 21 and the rotation of the lever 10 thus being stopped, the return movement of the shoe will cease. The adjustment is unaffected by drum expansion during an application since during the subsequent contraction of the drum the member 26 is disengaged to permit corresponding return movement of the shoe. The purpose of the slot 13 is to permit movement of the pin 12 and of the shoe without undue strain, if the member 24 should not be initially in contact with the drum when the brake is applied.
Patent GB-237925-A (GB)
Title: Improvements in combined buffing and draft rigging for railway cars
IPC: B61G9/24
Filed: 1925-08-01
Abstract: 237,925. Symington Co., (Assignees of Symington Co., T. H.). Aug. 4, 1924, [Convention date]. Combined buffer and draw-gear.-In a combined buffer and draw-gear, a coupler shank 2 is pivotally connected by a pin 6 to a hooded yoke 1. and a key 5 intersects the pin 6, the coupler shank and yoke being provided with means adapted to resist buffing movement while permitting the pivotal movement of the yoke and coupler. The end of the shank 2 is bifurcated to allow the key 5, which is secured to two sides of the yoke, to pass through, and segmental bearing surfaces 8, 9, 16 on the coupler shank, atruck from the axis of the pin as centre, contact with similar bearing surfaces 13, 11 on the swivel block 4, and 15 on the yoke respectively. The block 4 is secured by the pin 6 which secures the yoke and coupler shank together, and its rear end forms a follower plate against which the buffing spring bears.
Patent GB-531824-A (GB)
Title: An improved process and apparatus for the treatment of fluids with solid contact material
IPC: B01J8/04
Filed: 1939-07-05
Abstract: 531,824. Contact apparatus; cracking hydrocarbons. STANDARD OIL DEVELOPMENT CO. July 5, 1939, No. 19589. Convention date, Oct. 15, 1938. Addition to 528,883. [Classes 1 (i) and 32] [Also in Group I] An apparatus for treating fluids with solid contact materials and particularly applicable to the cracking of hydrocarbons with subsequent regeneration of the contact mass comprises a shell 10 containing a plurality of beds of contact material 12-15 separated by free spaces 16-20. Conduits 29, 31, 32 within the vessel connect alternate free spaces and can be closed by means of externally operable valves 36-38. Conduits 21-25 are also provided leading from each free space to the exterior of the shell. The connections permit reactants or regenerating gases to be admitted to any one or more of the free spaces and passed through the beds in series or parallel, with or without recirculation of the whole or a part of the fluid after passing through one or more beds. Fig. 2 shows the arrangement of two reaction chambers alternately on stream and regeneration in a plant for cracking oil. Charging stock is fed by lines 71, 72 to the bottom of vessel 10 and passes through the beds in series, the internal conduits being closed. The products pass by line 86 to the fractionating tower 87. Converter 10<SP>1</SP> is regenerated by oxidising gas admitted by blower 106 and lines 107, 108'. The internal valves are open so that the gas passes through the beds in parallel and the products escape through pipes 22', 24', and 111'. In another modification, not shown, provision is made for withdrawing resistants from any intermediate free space of the reaction vessel, circulating through a heat-exchanger, and returning to another free space. Specification 528,883 is referred to.
Patent GB-867899-A (GB)
Title: Improvements in photographic emulsions
IPC: G03C1/053
Filed: 1959-06-08
Abstract: Polymers of N-vinyl-2-piperidone and copolymers thereof or of N-vinyl-2-pyrrolidone or of N-vinyl-5-methyl-2-pyrrolidone with vinyl salicylate, vinyl acetate, vinyl alcohol, methyl acrylate, acrylamide, methacrylamide, acrylonitrile, vinyl chloride, vinylidene chloride, styrene, N-vinyl-caprolactam or N-vinyl-2-oxazolidone are prepared from the monomers using azobis-isobutyronitrile or hydrogen peroxide, as catalyst. Specifications 762,019, 791,748 and U.S.A. Specification 2,495,918 are referred to.
Patent GB-938204-A (GB)
Title: Improvements in or relating to electrical digital differential analysers
Inventor: BRANSTON NEIL MARK
IPC: G06F7/64
Filed: 1961-05-31
Abstract: 938,204. Digital differential analysers. GENERAL ELECTRIC CO. Ltd. May 31, 1962 [May 31, 1961], No. 19654/61. Class 106 (1). A digital differential analyser in which an integrator is time-shared to perform a number of integrations in turn comprises a randomaccess store receiving the values of increments of the integrals, and reading them out for use in a subsequent integration under control of predetermined programme data. As described (see Fig. 1), a major cycle of 128 integrations takes 4.26 milliseconds, and in each integration the remainder R of the integral, the integrand Y and the associated programme data are read from store 1. R and Y are each 20-bit words transmitted in serial-parallel mode (five groups of four bits) via matrices 2-4 to arithmetic unit 6, and the programme data includes the addresses in a dZ store in 6 of four increments to be added to Y in 6 and of the dx for that integration. These addresses are transmitted in parallel over the lower seven lines of groups 9 and 10 (seven bits specify are of 128 addresses in the dZ store), and line 11 of group 9 is used to convey a sign signal and a scaling signal (controlling the orders of Y into which selected increments are added). The new words Y and R (derived in 6 by updating Y and adding it into R under control of the selected dX) are passed via line groups 17 and 25, and 18 and 26 to replace those previously read out in 1, and the programme data is also re-written in 1 over lines 19 and 20. The original data is passed to matrices 15 and 16 over lines 37 and 38 and may be selected instead of the modified data if lines 35 are energized. 32 and 33 feed increments to the dZ store and receive output signals for operating for example a stepping shaft respectively. The Specification describes and illustrates schematically the principal parts of the apparatus which include diode gating circuits effecting the scaling of dY relative to Y, and the addition, and timing circuits controlled by timing signals derived from staggered clock pulses. Specifications 895,578 and 938,205 are referred to.
Patent GB-330420-A (GB)
IPC: B61D27/00
Filed: 1929-06-26
Abstract: 330,420. Taurel, P. Dec. 20, 1928, [Convention date]. Screwing.-In a portable machine for threading the end of a pipe d, the pipe, is gripped between vice jaws b mounted on a base a and operated from a handle c<1> through a right and left hand threaded spindle c so that the work is always centrally held in the machine. The base is provided with supports e, e<1>, carrying respectively a sliding arm f and a pivot pin h for a swinging frame member g. A gear casing i<1> is connected by a pivot pin k with the frame g and by removable bolts j with the tube f. The operating wheel s may be positioned to drive a pinion l connected through parallel spindles n, o<1> and gears m, p, m<1>, p<1>, to a wheel q on a member t which carries arms u adapted to engage and drive the die stock v. To obtain a higher speed the wheel s may be engaged with a pinion r of larger diameter than the pinion l. The wheels m, m<1> are connected to their hubs through friction surfaces m<2>, m<3>, Fig. 7, which are adapted to slip if excessive force is exerted. In order to push the dies on to the work a member x, Fig. 8, secured to the casing i<1> carries a ring x<3> which is forced by springs x<4> against the die stock. To remove the stock, the casing is released from the tube f and swung over to the! dotted position in Fig. 2. The screwed tube may be saw-cut or fitted with a union without removing it from the jaws b.
Patent GB-1144436-A (GB)
Title: A water-jet engine operated by the action of cavitation
IPC: B63H11/00
Filed: 1966-05-04
Abstract: 1,144,436. Water jet propulsion. J. ASAHINA. 4 May, 1966 [24 March, 1966], No. 19768/66. Heading B7V. [Also in Divisions F1 and F4] A water-jet engine operated by the action of cavitation comprises a hollow tubular member A having an inlet 1 and a jet outlet 2 for the passage of liquid and including a pressurereducing section 3 of diminishing cross-section in the inlet-to-outlet direction for the acceleration of liquid therethrough, a cavitation-forming section 4 situated subsequent to the pressurereducing section so that cavitation of the liquid takes place with consequential release of gas (oxygen) dissolved therein, means (not shown) for the introduction of combustible fuel, and an ignition system 5 in the cavitation-forming section, the resulting explosion causing the expulsion of liquid through the outlet 2 so that a reactive propulsive force is exerted upon the member A and so upon any craft attached thereto. Gaseous starting fuel is introduced at 37 and ignited by a plug 36. Various arrangements of cavitation sections, means for introducing primary and auxiliary fuels, ignition systems and methods of starting are described. A tube capable of in-and-out motion may be inserted at the outlet 2 and/or a flexible tube may be connected to the outlet and bent to any desired direction by control wires, thus dispensing with a rudder.
Patent GB-504016-A (GB)
Title: Improvements in means for allaying corrosion
IPC: C23F11/18
Filed: 1937-07-16
Abstract: 504,016. Spray - producers; ornamenting and bronzing. GILBERT, W.V. July 16, 1937, No. 19770. [Class 69 (iii)] [Also in Groups XV and XVI] To allay corrosion, decay, &c. of materials such as metals the surface thereof is treated by directing thereon a jet of gaseous fluid preferably moving at a high velocity and introducing in the jet an agent comprising a chromate or dichromate in powdered form. Fig. 1 shows a spray gun in which the agent is fed by means of pipe 17 and compressed air is admitted at 13 to impel the agent. An offshoot is provided to convey a stream of compressed air to the annular passage 20 so as to produce a spray as indicated. The keying or penetrating effect may be increased by the addition of sand &c. to the agent before, or during spraying. The agent may underlie or overlap another coating and, to this end, a spray gun having a number of barrels may be used. Fig. 2 shows a gun having two barrels - 22, 23 the first of which is adapted to spray a molten metal derived from the feeding of the wire 24 while the barrel 23 sprays the agent. The surface to be treated may be first prepared by sand blasting or applying a substance such as wax, pitch, resin, rubber, &c. or fusible powders blown through a flame on to a heated surface. The agent may be mixed with the compressed air prior to entry into the gun by means of the device shown in Fig. 3. Compressed air is admitted through the pipe 34 arranged tangentially stirring up the agent which impinges on the vanes 36 of the plate 33 which rotates violently and is forced upwardly against the spring 40 to uncover apertures 41 through which the admixed agent and compressed air pass through pipe 29 to the spray gun. Shield devices may be provided for the gun such as a flexible fabric 43 supported by a coiled spring 44 fitted on a housing 46 having a movable ball member 47 bored to receive the barrel 10 of the' spray gun. Suitable chromates for the treatment of metals include those of aluminium, bismuth, cadmium, calcium cobalt, iron &c., while for materials such as timber the chromates of ammonium, barium, copper, potassium, zinc, &c. are suitable. The agent may be heated either by a flame or in the spray gun. To produce a hard coating lead particles may be sprayed in conjunction with powdered glass and cobalt chromate through a flame. The spraying process may be carried out in three stages, the application of a suitable adhering substance, forcible projection of the agent and finally of say a paint for sealing or decorating purposes. In the case of fabrics or the like the requisite stream of air or gas can be produced by suction. Specifications 406,445, 422,860, [both in Group III], 428,375, [Group XXXVI], 432,831 ; and 441,126, [Group II], are referred to.
Patent GB-645187-A (GB)
Title: Improvements in or relating to fins for craft operating in fluids
IPC: B64C13/00
Filed: 1947-07-24
Abstract: 645,187. Controlling aircraft. GARBELL, M. A. July 24, 1947, No. 19884. Convention date, July 16, 1946. [Class 4] An aircraft comprises at least one pair of fins arranged at opposite sides of the longitudinal axis of the aircraft, said fins being of such a fluid-foil section to produce a sharp profile-drag increase when subjected to an angle of attack below that of zero lift and a normal low profile drag when subjected to an angle of attack above zero lift, said fins being positioned about said axis so that in the normal motion of the aircraft the fins operate at their angle of no lift, whereby any deviation of one of the fins and the aircraft from the angle of attack of no lift, toward a negative angle of attack creates a sharp profile drag increase which tends to return that fin and the aircraft to the angle of attack of no fin lift. The fins 7, 8 are of cambered aerofoil section and are inwardly inclined at their leading edges to produce static or " weathercock " stability of the aircraft. If the aircraft is yawed relative to the direction of normal airflow one fin will generate maximum lift and minimum drag while the other fin will operate under reverse conditions with the result that the longitudinal axis of the aircraft will be swung back into line with the direction of airflow. An annular cambered aerofoil may be used to ensure stability in more than one plane and a method of determining the optimum size of fin or aerofoil section to ensure the maximum stability to drag ratio is described.
Patent GB-921165-A (GB)
Title: Improvements in or relating to fin and tube matrices of heat exchangers
Inventor: DELANEY CYRIL TERENCE
IPC: F28D1/053
Filed: 1960-06-07
Abstract: 921,165. Gilled tubes for heat exchangers. GALLAY Ltd. June 5, 1961 [June 7, 1960], No. 19977/60. Class 64 (3). In a heat exchanger consisting of parallel tubes 9 and gill plates 5 spaced along the tubes, the gill plates have apertures 11 formed through them by removing portions of the plates at positions spaced from the edges of the plates and walls of the tubes and the downstream edge 15 of some or all apertures 11 are deformed out of the plane of the gill plates. The tubes are disposed in straight rows extending transverse to the direction of flow of fluid between the plates, and the tubes in one row are staggered in relation to those in the adjacent rows. The apertures 11 which may be of circular or elliptical shape are arranged between the tubes 9. The upstream portions 13 of the edges of the apertures 11 are also deformed out of the plane of the plates 5 but in the opposite direction to the portions 15 so that inclined flow passages are formed through the plates. Ridges are formed in the plates between the rows of tubes 9 and apertures 11 at right angles to the direction of flow B.
Patent GB-1466188-A (GB)
Title: Method for disposing of iron-bearing particulate wastes
IPC: C22B1/24
Filed: 1974-05-07
Abstract: 1466188 Recovering iron from waste matter FERRO-CARB AGGLOMERATION Ltd 7 May 1974 [14 May 1973 19 Nov 1973] 20045/74 Heading C7D Particulate waste containing carbon and at least 5% of Fe is mixed with a bituminous binder which is free of combustibles volatile at 500‹F and has a ball and ring softening point below 212‹F so that the mixture contains 2-15% of binder. Briquetted mixture is then heated in a gas containing at least 10% of oxygen at 350-600‹F for 30-90 minutes and the briquettes are then utilized in a subsequent operation such as steelmaking. The starting material may be a mixture of blast furnace and basic oxygen furnace dust with mill scale, flux and coke. After the above thermal treatment the briquettes may be heated to above 1400‹F in an inert atmosphere to reduce the content of volatile matter to below 3%.