baber/WOPTO huggingface dataset:
Patent GB-703213-A (GB)
Title: Improvements in or relating to disc brakes for vehicles
Inventor: MOLE PETER ALAN
IPC: F16D55/228
Filed: 1952-01-25
Abstract: 703,213. Disc brakes. GIRLING, Ltd. Jan. 26, 1953 [Jan. 25, 1952], No. 2065/52. Class 103(1) In a disc brake of the type described in Specification 688,382 in which opposed friction pads are adapted to be urged into engagement by fluid pressure with opposite faces of a rotating disc at one or more points, the remainder of the disc being left open for cooling, the friction pads have the form of segments of a ring of rectangular crosssection and are guided for movement in a direction parallel to the axis of the brake disc in a fixed housing which straddles the outer edge of the disc, the pads being adapted to be urged into engagement with the disc by pistons working in hydraulic cylinders carried by the housing. An arcuate sheet metal brake housing a is adapted to straddle the periphery of a rotating brake disc b welded to a cranked ring q which is itself welded to the wheel r. The free edge of one side wall of the housing a is welded to the arcuate outer edge of the anchorage plate c secured .to a fixed part of the vehicle. Anchorage plate c is provided with a cranked flange d and a similar curved flange e is welded to the other wall of the housing a. Together with a curved pressing g, welded to the inner surface of the housing a, the flanges d and e serve as guides for segmental friction pads f, backed by rigid pressure plates m, which are hydraulically urged by projections l of pistons k to engage the opposite faces of the revolving disc b. Fig. 2 shows three pairs of friction pads and brake cylinders mounted in a common housing a, angular movement of the friction pads being prevented by radial U-shaped sheet metal plates h.
Patent GB-672040-A (GB)
Title: An improved device for separating liquids from gases
IPC: B01D45/02
Filed: 1950-01-27
Abstract: 672,040. Separating liquid particles from gases. MORGAN, J. H. Jan. 29, 1951 [Jan. 27, 1950], No. 2132/50. Class 123(iii) Oil-laden &c. gas is dried by passage through metal-wool &c. 22, preferably non-ferrous, located in, for example, a container 13 which may be disposed within an outer casing 10 and has a conical or domeshaped perforated metal base 19 provided with peripheral oil outlet holes 23. Gas is admitted to the container 13 and casing 10 through a pipe 18, and dried gas leaves through pipes 9, 17. Preferably the base has an upwardlyprojecting peripheral lip 21, which is a push fit on to the lower end of the container 13, and the perforations 20. therein may have flanges 34 formed by leaving in place the metal displaced during production of said perforations by upward plunging. The deposited oil &c. 4, accumulating in the bottom of the casing 10 and subjected to the gas pressure in the latter, may be removed by a pipe 24 which extends axially through the container and is provided at its open lower end with a valve, not shown; controlled by a float 32. The separate container 13 may be dispensed with, the base 19 then extending wholly across a horizontal section of the container 13.
Patent GB-876989-A (GB)
Title: Improvements in or relating to arithmetic units for digital computers
IPC: G06F7/501
Filed: 1958-01-22
Abstract: 876,989. Digital electric calculating-apparatus. PHILIPS ELECTRICAL INDUSTRIES Ltd. Jan. 22, 1958 [Jan. 22, 1957], No. 2197/58. Class 106 (1). A parallel-operating binary adder is subdivided into a plurality of sections each of which corresponds to one or more digit positions of the numbers to be added, each section sequentially forming its own carries from one to the next digit position and carry being effected from one section to the next in such a manner as to speed the operation of addition. Fig. 1 shows sections III and IV of a highspeed adder in which successively higher sections have progressively fewer digit positions. Thus section III has five logical adders 1 14 -1 18  while section IV has four adders 1 19 -1 22 . Each section has an input carry producer such as 2 4  fed by all the logical adders and the input carry producer of the preceding section. The information received from each adder comprises the functions d i  = x iyi  and e i  = x i  + y i  and the complementary functions. Fig. 2 shows a logical adder 1 i  with inputs and outputs and their relationship. Fig. 3 shows an input carry producer 2 3  in detail. The prior art is represented by a reference to U.S.A. Specification 2,734,684.
Patent GB-1115972-A (GB)
Title: Strengthened glass articles
IPC: C03C3/097
Filed: 1966-01-18
Abstract: A lithia-soda-aluminia-silica-zirconia glass article containing from 1 to less than 5% by weight of P2O5 has a surface zone in compression which zone contains at least one alkali metal of larger atomic diameter than lithium.  Such an article is produced by immersing the glass article in a molten bath of an alkali-metal salt of greater atomic diameter than lithium, e.g. sodium or potassium, at a temperature below the glass strain point but in the range 600-1100 DEG  F. for a time of from 1 minute to several hours.  The article is preferably pre-heated to within 50 DEG  F. of the temperature of the salt bath.  The alkali metal salts are preferably the sulphates, nitrates, chlorides, fluorides or phosphates. Alternatively, instead of immersion the glass article may be sprayed with an ion exchange coating or have a paste (e.g. 60-90% alkali-metal salt and 40-10% inert thioxotropic diluent such as clay) contacting the surfaces. The article may be successively treated with salts of increasing atomic diameter. The glass article, which may be in sheet form, preferably has a thickness 0.060 to 1 inch in which the surface compressive zone has a thickness of from 30 to 400 microns.  The ratio of maximum compressive stress in the surface to maximum tensile stress in the interior is 10:1.  The glass article should have a composition based on 2-15% LiO2; 2-20% Na2O and/or K2O; 1 to less than 5% P2O5; 10-35% Al2O3; 30-65% SiO2; 0-8% ZrO2; 0-12% ZnO; 0-8% MgO; and 0-10% B2O3. The mole ratio of lithia to soda should be in the range 0.21:1 to 15.6:1 and of lithia to potassia 0.31:1 to 23.0:1.  The glass should not contain in excess of 90% by wt. of Al2O3 plus SiO2.  Other additions may be up to 6% TiO2; up to 2% CaO, BaO, SrO and PbO; up to 1/2 % Fe2O3, CoO, NiO or Se; and from 0 to 1% of As2O3, Sb2O5; Na2SO4, NaCl and/or NaF.  Reference has been directed by the Comptroller to Specifications 917,388, 966,731, 966,733, 966,734.
Patent GB-730236-A (GB)
Title: Improvements in and relating to typewriters and like machines
IPC: B41J19/54
Filed: 1953-01-26
Abstract: 730,236. Typewriters. RHEINMETALLAKT.-GES. Jan. 26, 1953 [May 16, 1952], No. 2262/63. Class 100 (4). In an escapement mechanism for typewriters or like machines of the kind wherein the typelevers 1 engage an arcuate universal bar 7 carried on lever arms 8 pivoted at 9, an edge 12 of the bar 7,-which is engaged by the type-levers 1, is inclined by an angle α to the plane of the pivots 4 of the type-levers. This ensures that type-levers 1 at the extremities of type-lever sector 2 engage the bar sooner than the typelevers in a central position. and compensate for the different distances from the pivots 9 of the bar to the point of engagement of a type-lever with the bar 7; this results in a uniform actuation of the escapement mechanism operated by an adjustable trip stud 14.
Patent GB-607010-A (GB)
Title: Improvements relating to seat frames
IPC: A47C5/04
Filed: 1946-01-23
Abstract: 607,010. Upholstery. METAL SECTIONS, Ltd., and REYNOLDS, W. H. Jan. 23, 1946, No. 2266. [Classes 52(ii) and 52(iv)] A seat frame is made of metal strips shaped to channel section along one or both longitudinal edges with one side of the channel section in close contact with the main part of the strip, the channel sections having wooden or other tacking strips As shown the seat is formed with a back comprising metal members c connected together by welding &c., side arms comprising front and back members d, f connected by upper and lower members and a rectangular base g. The metal strips a forming the constructional members are formed at their longitudinal edges with channels b to accommodate wood or the like tacking strips for securing the upholstery. The channels b are formed so that one side of each channel lies in close contact with a flat part of the metal strip a as shown e.g. in Fig. 5.
Patent GB-986812-A (GB)
Title: Salts of 2,4-diamino-5-(p-chlorophenyl)-6-ethylpyrimidine
IPC: C07D239/48
Filed: 1962-01-22
Abstract: The invention comprises salts of the pyrimidine of formula <FORM:0986812/C2/1> with pamoic acid of formula <FORM:0986812/C2/2> and with citrazinic acid of formula <FORM:0986812/C2/3> the salts are prepared by reaction of the components or salts thereof in a solvent. Pharmaceutical compositions containing the above pyrimethamine salts are mentioned for parenteral administration (as suspensions) against malaria.  Reference has been directed by the Comptroller to Specification 715,813.
Patent GB-1488201-A (GB)
Title: Circuit interrupter with load side short circuit switchin
IPC: H01H77/06
Filed: 1975-01-20
Abstract: 1488201 Overcurrent protection WESTINGHOUSE ELECTRIC CORP 20 Jan 1975 [25 Jan 1974] 2386/75 Heading H2H [Also in Division H1] A "current limiting" arrangement has an interrupter in which a contact member 46 is movable in a slot 62 in a magnetic body 52 to open contacts 42, 48 and 50, 44 when the current in the member 46 is sufficient to induce enough flux in the body 52 to effect rapid movement of the member 46 and this member or a separate similar member is also arranged to close a separate contact set 14, 16 which can be arranged to short-circuit a load fed by the circuit through the contacts 42, 48, 50, 44. The separate contacts may be change-over contacts which also disconnect the load (Fig. 7, not shown) or alternatively if the member 46 effects change-over to the shunt path (Fig. 8 not shown) a second "current limiter" may be connected in the shunt path.
Patent GB-551105-A (GB)
Title: Improvements relating to bolts for doors, windows and the like
IPC: E05C1/06
Filed: 1942-02-25
Abstract: 551,105. Sliding bolts. SPARKS, W., and TONKS (BIRMINGHAM) Ltd. Feb. 25, 1942, No. 2490. [Class 44] In a flush bolt for doors and windows of the kind operated by a finger lever k and in which the bolt executes a slight angular movement as it is shot or withdrawn, the bolt is retained in each of its extreme positions by a blade spring n one end of which is secured to the bolt whilst the other end co-operates with an abutment carried by the attachment plate a on which the bolt is slidably carried. As shown, the abutment is in the form of a roller q pivotally mounted between lugs o on plate a. Plate a has an end-piece b with an aperture guiding the bolt-head g and a recess j within which the lever k is pivoted at m, the upper end of the recess providing a cupped abutment s against which lever k abuts when the bolt is shot. The bolt shown comprises a cylindrical head g, rod hand member i to which the bladespring n is riveted, the lever being pivotally connected to part i which is shaped to provide an abutment for lever k when the bolt is retracted as shown.
Patent GB-353851-A (GB)
Title: Improvements in radio vision apparatus
IPC: H04N5/04
Filed: 1930-01-24
Abstract: 353,851. Induction motors. SCHNEIDER ET CIE, 42, Rue d'Anjou, Paris. Jan. 24, 1930, No. 2512. Convention date, Feb. 9, 1929. Void [Published under Sect. 91 of the Acts]. [Class 35.] In a television system a receiving disc 2 is driven from a local source at a speed slightly less or greater than that for synchronism with the transmitting disc in the manner of a rotating electricity meter through field windings 6, 7 from a local A.C. generator 10. An accelerating or retarding torque is applied to the disc 2 through field windings 16, 17, co-operating with sectors 4 on the disc, and fed with current impulses from an amplifier 18, connected to an aerial 20 receiving impulses which are produced at the transmitting station by an interrupter on the shaft of the transmitter disc. The torque exerted by the windings 6, 7 which are carried on a spring-biased rod 8, can be varied by an adjustable screw 15. The strength and relative phase displacement of the current through the windings 6, 7 are adjusted by a resistance 12 and a condenser 11 respectively, whilst the phase displacement of the current in the windings 16, 17 is varied by a condenser 19.
Patent GB-1327744-A (GB)
Title: Fluorinated oil-and water-repellent and dry soil resistant polymers
IPC: C08F220/24
Filed: 1971-01-19
Abstract: 1327744 Fluorine-containing acrylic copolymers E I DU PONT DE NEMOURS & CO 19 Jan 1971 [29 Jan 1970] 2540/71 Heading C3P An oil- and water-repellant and soil resistant aqueous emulsion copolymer contains 100 parts of a mixture of (a) 70-95 parts of and (b) 30-5 parts of ethyl or methyl acrylate where R f  is a perfluoroalkyl group of 4-14 carbons. There may optionally be present up to 1 part of hydroxyethyl acrylate or methacrylate and/or N-methylol acrylamide or methacrylamide. Preferably Rf is a commercial mixture containing C 4 , C 6 , C 8 , C 10  and C 12  constituents. The polymers are formed in aqueous emulsion using a cationic emulsifier, e.g. dimethyl octadecylamine acetate, a water soluble azo-initiator e.g. azo-bis-isobutyramidine hydrochloride and dodecylmercaptan. The emulsions are applied to fabrics and dried.
Patent GB-1461540-A (GB)
Title: Optical fibre cables
IPC: G02B6/44
Filed: 1975-01-21
Abstract: 1461540 Light guides STANDARD TELEPHONES & CABLES Ltd 21 Jan 1975 2581/75 Addition to 1461151 Heading G2J In an optical communications cable according to the Specification, the protective tube is reinforced by an open-mesh braid or tape of fibre glass or of polyethyleneterephalate glycol.
Patent GB-668136-A (GB)
Title: Improved means for securing annular closure caps containing a resiliently yielding sealing ring and designed for the accommodation of a closure cover to bottles
IPC: B67B3/14
Filed: 1950-02-01
Abstract: 668,136. Sealing bottles. JASTA AKT.- GES. Feb. 1, 1950 [Feb. 3, 1949], No. 2597/50 Class 125(ii) In an apparatus for securing to a bottle an annular cap 2 containing a resiliently yielding sealing ring 3 (the closure being completed by a dished member expanded within the annuli), the cap and ring are properly centred by means of a centering pin 10 passing therethrough and through an abutment 4 bearing on the cap and on the face 16 of which the edges 5a of the gripping jaws 5 bear. The jaws are operated by the conical surface 6 of the reciprocating casing 8 and bend the bottom edge of the vertical flange of the cap beneath the bead around the bottle mouth.
Patent GB-1292901-A (GB)
Title: Apparatus for the production of ingots
IPC: C22B4/00
Filed: 1970-01-20
Abstract: 1292901 Ingot moulds BOHLER & CO AG GEB 20 Jan 1970 [20 Jan 1969] 2622/70 Addition to 1254546 Heading B3F Apparatus for producing metal ingots comprises a chill mould 10, a mould head 26 having a sheet metal wall 20, means for directing a cooling liquid against the outer surface of the wall 20 so as to cool said head independently of the mould, and energy supply means 60 for supplying energy to a slag layer 50 at the rate of at least 120 kWh per metric ton of mould capacity. The cooling liquid is supplied from a distributing chamber 22 and collected in a channel 24. In operation a layer of solidified slag 51 forms on the inner surface of the wall 26 and protects it from the hot molten slag 50. The electrode 60 may be of the consumable or non- consumable type. A plasma burner may be provided instead of an electrode.
Patent GB-1381743-A (GB)
Title: Ignition systems for internal combustion engines
IPC: F02P5/155
Filed: 1972-01-20
Abstract: 1381743 Ignition systems for I C engines ROBERT BOSCH GmbH 20 Jan 1972 [21 Jan 1971] 2703/72 Heading F1B An ignition system for an I.C. engine comprises an electrical pulse generator 11, which in use is triggered in synchronism with the engine crankshaft, a switching amplifier 21 including at least one semi-conductor switch 211 for triggering the ignition process, a threshold limit switch 20 connected to trigger said amplifier 21, and a sawtooth generator 18 connected to actuate the threshold limit switch, the pulse repetition frequency of the sawtooth generator and the rate of rise of the leading edge of the sawtooth pulses being proportional to the output frequency of the pulse generator, which triggers and resets the sawtooth generator. The sawtooth generator 18 includes a storage capacitor 182 which is discharged by a switching transistor 181 much more quickly than it is charged by a current source comprising transistor 180 and resistors 183, 186. The current supplied by this source is controlled by the output voltage of a low-pass filter arrangement 14 which is connected via a monostable trigger stage 13 and a differentiating circuit 12 to the pulse generator 11. The low-pass filter arrangement may comprise two low-pass filters (14a), (14b) Fig. 1a (not shown) with different cut-off frequencies, the inputs of which are directly connected and the outputs of which are connected via a diode limiter circuit (14c) consisting of diodes 144, 145. A phase inverter amplifier 15 transmits a D.C. voltage, which increases with engine speed, to the sawtooth generator 18 and a D.C. voltage which decreases with increasing engine speed to first and second limiter stages 23 and 24, the outputs from which are connected to an integrating member 22, to which the output from sawtooth generator 18 is also connected via impedance converter 19. The circuit consisting of the first limiter stage 23 and resistors 225, 224 simulates the function of the conventional centrifugal timing control. The second limiter stage 24 and a vacuum transducer 25 simulate the conventional vacuum timing control. Transistor 250 operates as an amplifier and as a rectifier so that a D.C. potential is applied to capacitor 254, this potential depending on how far an attenuator 27 has penetrated into the air-gap of transformer 256, the potential being smaller for larger manifold vacuum. Without the limiter 24, the greater the vacuum the greater the ignition advance; but limiter 24 limits this adjustment at low and high speeds (the points A and B on Fig. 5 (not shown).
Patent GB-455468-A (GB)
Title: A portable money container
IPC: G07D9/00
Filed: 1936-01-29
Abstract: 455,468. Coin holders. SCHENK, E., 2, Werdstrasse, Z³rich, Switzerland. Jan. 29, 1936, No. 2715. [Class 18] A holder for a column of coins is divided by ribs 14 to form compartments, each of which accommodates only two coins. The holder comprises ends 1<1> joined by a curved strip 21 and a cover constituted by a bar 9<1> with springy end flanges 4<1>. When the cover is closed, it seats in recesses 11<1> in the ends 1<1>, and to obtain access to the coins, the cover is pulled upwards so that hemispherical projections 8<1> on the flanges 4<1> are pulled out of recesses 6<1> and along guideways 7<1>, until they slip into recesses 5<1>, when the cover can be swung aside.
Patent GB-305028-A (GB)
Title: Process for the protection and authentification of deeds, cheques or any other documents, printed or manuscript, or any other objects
IPC: B42D15/00
Filed: 1929-01-26
Abstract: 305,028. Bayle, E., George, H., and MachÚ, A. Jan. 28, 1928, [Convention date]. Records.-Phonograph records are marked, in order to enable frauds to be detected, with an ink containing an indicator whose colour depends on its ionic state and which can be changed by treatment with different reagents, together with a mixture to render the indicator immune against atmospheric agents; alternatively, the coloured material may be incorporated in the material of the record. In an example, a violet ink is prepared by mixing together the chloro-zincic derivative of the bromo-ethylate of hexamethyl- and pentamethylmonoethylp-rosaniline, the sodium salt of otoluidine-dia.zo - bi - 1-naphthylamine-4-sulphonic acid, sodium dihydrogen orthophosphate, soda, glycerine, and a thin printing-ink varnish. The colour is changed as follows:-to green, by treatment with hydrochloric acid; to blue-green, by treatment with glycocol, salt, and hydrochloric acid; to blue-grey by treatment with hydrochloric acid and potassium biphthalate; to indigo, by treatment with sodium citrate and hydrochloric acid; and to violet, by treatment with boric acid and borax. One or more of the indicator materials may be incorporated in the reagent instead of adding them all to the ink.
Patent GB-332621-A (GB)
Title: Improvements in or relating to electric battery charging systems
IPC: H02M1/14
Filed: 1929-01-26
Abstract: 332,621. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilarrepenfabrieken). Jan. 26, 1929. Charging batteries. - In full wave rectifiers for use in battery charging wherein chokes are used for smoothing out pulsations iron-cored chokes with an air gap are used. The rectifier preferably comprises a two-anode incandescentcathode discharge tube 5 associated with a transformer having a main secondary winding in two parts 2, 3 connected through resistances 8, 9 to the battery 10. The chokes 6, 7 may be inserted in the leads to the resistance 8, 9, in the battery leads 13, 14, or in the anode leads 15, 16.
Patent GB-1125495-A (GB)
Title: Chromium-plated steels and process for the preparation thereof
IPC: C25D5/36
Filed: 1967-01-19
Abstract: 1,125,495. Electro-plating steel with chromium. FUJI IRON & STEEL CO. Ltd. Jan. 19, 1967 [Jan. 26, 1966], No. 2799/67. Heading C7B. Steel sheet or strip having a matte finish produced by passage between the roughened rolls of a temper mill has a chromium layer formed thereon of thickness 0À005-0À1 micron. The surface roughness of the steel is preferably 0.8-3 micron (R.M.S.). The chromium coating may be formed by electro-plating e.g. using electrolyte containing 100-250g/l chromium trioxide which may also contain sulphuric acid in a concentration of about 1% of that of the chromium trioxide. Prior to electro-plating the steel surface may be subjected to degreasing and acid pickling; and the chromium plated surface may be coated with an organic coating, e. g. an oleoresinous varnish; resin based lacquer, e.g. white epoxy or vinyl-resin based lacquer or a transparent alkyd resin-based lacquer; a paint; or a vegetable oil coating, e. g. cotton seed oil or wax.
Patent GB-494896-A (GB)
Title: Variable electric circuit element
IPC: H01C10/36
Filed: 1937-01-30
Abstract: 494,896. Wireless receiving-apparatus. STEATIT - MAGNESIA AKT.-GES. Jan. 30, 1937, No. 2813. Convention date, Jan. 31, 1936. [Class 40 (v)] A resistor, condenser or other circuit element variable by rotation of a spindle and having a push switch mounted on the side of the element remote from the operating knob is provided with concentric operating shafts e, d actuating respectively the switch b by longitudinal movement and the circuit variable a by rotatory movement. The shaft e when rotated takes the shaft d with it and can then be longitudinally displaced, or, both shafts may be actuated independently of one another, the latter adjustment permitting two operating knobs. The solid movement of the two shafts can be effected by making the shaft e and washer f with a non- circular engagement, or by a pin-and-slot connection between the two shafts. Reference has been directed by the Comptroller to Specification 469,364, [Group XXXVII].