baber/WOPTO huggingface dataset:
Patent GB-523984-A (GB)
Title: Improvements in or relating to the manufacture of coloured shaped articles from polymerisation artificial resins
IPC: B44C3/04
Filed: 1939-01-18
Abstract: 523,984. Moulding synthetic resins. ROHM & HAAS GES. Jan. 18, 1939, No. 1779. Convention date, Jan. 19, 1938. [Class 87 (ii)] In manufacturing coloured articles by polymerizing artificial resins containing the group CH  2  = C in a mould, one or more layers containing colouring matter and binders insoluble in the material to be polymerized are applied uniformly or in the form of patterns or writing to the wall of the mould before introducing the material to be polymerized. The synthetic resin may be an ester of acrylic or methacrylic acid or styrol or vinyl acetate. Luminous colours may be used. The binder may be soluble in water or alcohol and may be casein, albumen, gum arabic, mastix, cellulose ether, polyvinyl alcohol, polymerized carboxylic acid derivative or alkali salts of polyacrylic or polymethacrylic acid, or the binder may be fats or waxes, the colour being applied as a greasepaint. The mould wall may be warmed prior to applying the layer. The solution of colour and binder may be applied by writing on a glass plate which subsequently forms a wall of the mould.
Patent GB-969498-A (GB)
Title: Audio-amplifier-radio tuner combination and low drain tuner therefor
IPC: H03F5/00
Filed: 1962-01-16
Abstract: 969,498. Radio receiving apparatus; transistor receiver circuits. A. K. TATEISHI. Jan. 16, 1961, No. 1785/61. Headings H3Q and H3T. A tuner unit which can be used with a number of different amplifiers is built into a cylindrical casing 16, Fig. 1, which plugs into a corresponding socket 22 mountable on each of the amplifiers. Location is by means of a groove 20 in the casing 16 which engages projection 21 on the socket 22. The easing 16 carries at its rear end a contact board 18 which when fully home engages a corresponding spring contact board 25 carried by the socket 22. The casing 16 also carries at the rear end a peg 19 having a circumferential groove (Fig. 3, not shown) which engages spring members 28, 29 operating across a slot 28 in the socket 22, whereby the tuner unit can be held partially withdrawn so as to disengage the contact members and switch it off (Fig. 2, not shown). A tuning knob 17 is carried on the face of the unit. The tuner comprises a ferrite rod aerial 2, Fig. 4, and transistor frequency changer/ oscillator 3 and I.F. stages 7, 9 feeding diode detector 11; an audio stage 13 is also provided. The diode output is brought to contact T3 of the contact board, the audio amplifier input to T2 and its output to T5 and also via condenser 15 to T4, while the power supply is taken from contacts T1, 6. In a low-sensitivity amplifier the corresponding contacts S2, 3, Fig. 5, are connected together so that the diode 11 feeds the audio stage 13, the output of which is fed over contact S5 to the grid of the amplifier via volume control 37, and also via contact S4 and lead 56 to a second amplifier, if desired. Power is supplied to contacts S1, 6 being taken from the cathode bias resistor 50 of the amplifier. If necessary this voltage may be augmented by means of a further resistor 53. In an amplifier of higher gain (Fig. 6, not shown) the diode output is reduced by connecting a resistor between contacts S2, 3. In a transistor amplifier (Fig. 7, not shown), this connection comprises a volume control and contacts S1, 6 are connected to the supply battery. The Specification also describes an arrangement (Fig. 8, not shown) in which two amplifiers of different gain are fed from contacts S3, 4, a potentiometer being used in the connection to the amplifier of higher gain.
Patent GB-509612-A (GB)
Title: Improvements in needles for weaving looms
IPC: D03D47/23
Filed: 1938-01-19
Abstract: 509,612. Looms with stationary weft supplies. DEWAS, R. Jan. 19, 1938, No. 1827. Convention date, Jan. 23, 1937. [Class 142 (ii)] Comprises detail improvements in the head and associated cutting and thread clamping devices of conveying needles of the kind described in Specifications 442,206 and 456,216 for inserting weft from fixed bobbins. The hollow tubular head has a large base 1 adjacent the reed furnished with a thickened part having a thread-receiving slot 3 and a beak 1a, and a small base 1d having a thread slot 5. The bases are connected by sides 1b, 1c splayed at 1e, an offset projecting mass of material 6 secured to the base 1c having a curved outer edge merging into the edge 1e and a thread slot 7 registering with the slot 5. The cutting blade 9 secured by screws or by extending into a housing. in a curved slot 8 has a part 9a extending into the slot 7, whilst the threadclamping blade 13 is secured by screws 14 in a cut-away part 11 continuing into a groove 12. The front of the blade, which may have ribs 17, is held in contact with a wall 7c of the slot 7. The blade, which may be perforated, may be acted upon by a spring blade 15. In a modification, a small clamping blade 13, Fig. 13, carried by a spring 15 is used. To facilitate the entry of a cleaning blade through the thread clamp of the pulling needle, the rear ends of the blades 13, 15 may be mounted on a projection forming a housing. In another modification, the slot 5 has the same height as the groove 12 and the end of the blade 13 may at the front emerge slightly from the groove 12. Two clamping and two spring blades may be used. The cutting device may comprise two blades placed one against the other with their bevels opposed. When weaving cloths with weft change, the opening 3 is replaced by a slot.
Patent GB-678498-A (GB)
Title: Improvements in and relating to electric plug connectors
IPC: H01R13/415
Filed: 1951-01-24
Abstract: 678,498. Two-part couplings; lamp caps. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 24, 1951 [Feb. 1, 1950], No. 1836/51. Class 38 (i). A plug connector, shown applied as a lamp base, comprises a cup-shaped insulating body 11 having openings 28 in the end wall thereof in which are secured pins 15, each comprising a metal strip bent upon itself to form spaced legs 16, 17, the leg 16 being anchored to the body and the leg 17 being movable transversely. The space between the legs communicates with one of the openings 28 to receive a leadwire 4 threaded through said opening. To this end a lug 30 is pressed out from the side of leg 16 to form a passageway for the wire, the latter being secured to the leg by pressing the lug 30 inwardly so as to pinch the wire between it and the leg. The upper portion of leg 16 is reduced at 19 to form shoulders which abut the outside of body 11, and is slotted to form tongues which are bent over the inside of the body.
Patent GB-703813-A (GB)
Title: Improvements in and relating to temperature responsive control circuits
IPC: G05D23/24
Filed: 1952-01-23
Abstract: 703,813. Protective cut-out arrangements. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 23, 1952 [Feb. 1, 1951], No. 1890/52. Class 38(5) [Also in Group XXXV] In a temperature responsive control circuit, suitable for an electric-blanket 6, of the kind described in Specifications 703,758 and 696,369, [both in Group XXXV], in order to reduce the influence of their heating effect on a cycling control 12, two resistors forming potential divider arms of a resonant bridge circuit controlling a contactor 11 are replaced by a neon glow lamp 18 and its associated resistor 17, the former serving also to indicate operation of the lead.
Patent GB-1419762-A (GB)
Title: Treatment of permeable foamstructured materials
IPC: C04B41/50
Filed: 1972-01-14
Abstract: 1419762 Glazing porous ceramics FOSECO INTERNATIONAL Ltd 3 Jan 1973 [14 Jan 1972] 1931/72 Heading C1M To provide a body of a permeable material with an impermeable surface, the body is so produced, or treated subsequent to production so that the surface to be rendered impermeable is less permeable than the body, after which a glaze slurry is applied and the body fired so as to fuse the glaze to form the impermeable surface. In a preferred embodiment an organic (e.g. polyurethane) foam is formed to the required shape for the body and the surfaces to be rendered impermeable provided with finer pored foam or lime with an absorbent material such as paper. The foam is then dipped in a ceramic slurry, dried and fired to produce a ceramic body have a low permeability surface capable of being glazed. A preferred glaze slurry comprises by weight micronized alumina 16%; sodium silicate 12%; zircon frit 12%; water 60%.
Patent GB-242480-A (GB)
Title: Improvements in letter and like files
IPC: B42F13/16
Filed: 1925-01-22
Abstract: 242,480. Real, W. Jan. 22, 1925. Post and like files; attaching files to covers and supports; fastenings.-A file for letters &c., comprises a U.shaped filing-pin a, b made from wire, one leg of the pin being bent to form a resilient locking arch d having a hook e at its free end for engagement with the filing-pin. The part c joining the pin and the arch d may be bent as shown in Fig. 12 and attached to a flap l, hinged to a base i, or may be secured to the base by means of a plate l, Fig. 13, fixed to the base and having a slot p and recess q with which the lower parts of the file engage. By making the distance between the holes or recesses in the flap or plate l more or less than the distance between the pin a, b and arch d, the bend in the part c serves by its resiliency to secure the file in position. Bends g, Fig. 7, may be provided so that the device is retained more securely on the base. The file may be pivoted to a cover by means of eyelets h, Figs. 9 and 10, or gummed strips, and an extension f may be provided on the outer leg a of the pin. In the form shown in Fig. 9, this extension f is curved and lies flat on the cover in the closed position, so that its torsional action sets the file in the upright position when the cover is opened. In the form shown in Fig. 10, the parts c, f form between them an obtuse angle when the file is upright, but are brought into alignment, as shown in dotted lines. when the cover is closed.
Patent GB-127215-A (GB)
Title: Improvements in Means for Cutting Circular Grooves.
Inventor: WEBSTER WILLIAM THOMAS
IPC: B23B51/04
Filed: 1919-01-28
Abstract: 127,215. Webster, W. T. Jan. 28, 1919. Saws.-Means for cutting circular grooves in wood for inlaying &c. comprises a cylindrical saw or cutter A, Fig .1, having teeth B on one end and handles C for rotating it, and an annular guide for the cutter adapted to be clamped to the work. As shown in Fig. 4, the annular guide D has a flange D<1> with a rubber strip or pad D<2>, ' while that shown in Fig. 6 has projecting lugs D' which may be clamped to the work E by clamps F. Adjustable stops on the cylinder A may be provided to limit the depth of the cut. The teeth B may extend all round or only partly round the edge.
Patent GB-830608-A (GB)
Title: Alloy steel welding material and welded articles
IPC: B23K35/30
Filed: 1956-01-23
Abstract: Weld electrodes for making non-magnetic welds that are free from cracking have compositions, in per cent by weight within the p following range. .Cr.12.0-26.0 .Ni.9.0-22.0 .Mn.8.5-20.0 .C.0-0.3 .Si.0-3.0 .Mo.0-4.0 .Cu.0-5.0 .NB and Ta.0-1.5 .Ti.0-1.5 .Fe.the remainder the contents of Cr, Ni and Mo being selected according to one of the following ranges with further limitation of the C content where stated, (1) Cr 16-20, Ni 10-14, Mo 2-4; (2) Cr 17-19, Ni 9-12, C up to 0.08; (3) Cr 19-21, Ni 10-12; (4) Cr 22-24, Ni 12-15, C up to 0.2; (5) Cr 24/26, Ni 19-22, C up to 0.25.
Patent GB-469609-A (GB)
Title: Improvements in or relating to mechanical stokers and furnace grates
IPC: F23K3/00
Filed: 1936-01-24
Abstract: 469,609. Feeding fuel. CHEMICAL ENGINEERING & WILTON'S PATENT FURNACE CO., Ltd., and FEGAN, T. G. Jan. 24, 1936, No. 2261. [Class 78 (i)] [Also in Group XII] Low grade fuel is fed to a furnace from a hopper 3 provided with two or more reciprocating feeder plates 7 one or more of which move forward while another or others move backward and deliver the fuel on to reciprocating firebars below which air is supplied by forced draught. The feeder plates are provided with upturned front ends 10 and wedge shape projections 9. The hopper is of increasing cross sectional area towards the bottom and preferably divided into compartments 4, 5 for the supply of different grades of fuel under the control of a slide or flap 6. The feeder plates are driven from an oscillating shaft through cranks 15, 16 and links 15a, 17.
Patent GB-1153823-A (GB)
Title: Fluorocarbon Coated Metal Surfaces
IPC: A47J36/02
Filed: 1967-01-16
Abstract: 1,153,823. Fluorocarbon resin coating. WALTER KIDDE & CO. Inc. 16 Jan., 1967 [2 Feb., 1966], No. 2297/67. Heading B2K. [Also in Division C7] A method of applying and adhering a fluorocarbon resin layer to a metal base selected from the group metals consisting of iron, nickel, cobalt and aluminium and their alloys comprises spraying a melt of aluminium, an alloy of nickel and aluminium molybdenum or a hydride of titanium, hafnium, zirconium, niobium or tantalum on to the metal base, impregnating the resulting exposed porous surface with an aqueous suspension of a fluorocarbon resin, heating to dry the coated surface at a temperature less than 200‹F, heating the dried surface to a temperature of from 400‹ to 500‹F and quenching in water. The fluorocarbon resin may be polytetrafluoroethylene resin. Surfaces which are non-staining, non-sticking, having a high reflectance coefficient both for infra-red radiation and sound are produced. Metal-base alloys mentioned are nickel-bearing stainless steel, nickel-copper, nickel-plated copper or brass. The metal base may be any metal plated with a layer of iron, nickel or cobalt, preferably an electro deposited layer of nickel. The metal surface is preferably flame or plasma-sprayed with nickel aluminide to form a relatively compact layer having a porous structure on its exposed surface. After brushing or abrading the surface to remove any loose particles the surface is wetted by a spray of wetting agent in water. The surface is then coated with a priming layer of an aqueous suspension of a tetrafluoroethylene resin containing pigment, wetting agent, and chromic acid or a water soluble salt thereof. The primed surface is slowly dried at elevated temperature so that the primer is gradually drawn into the porous outer structure of the aluminium-nickel alloy and is thereafter heated to a temperature sufficient to convert some or all of the chromic acid compounds to insoluble chromates without sintering the resin. Whilst still hot the primed surface is quenched by immersion in cold water to dissolve out excess chromium compounds. During the quenching operation ultrasonic energy may be used. Whilst still moist the nickel-aluminium layer is uniformly coated with a layer of polytetrafluoroethylene resin in aqueous suspension applied by spraying in an electrostatic field. The resin is then caused to be drawn into the porous nickel-aluminium surface layer by slowly drying the coated layer at less than 200‹F. The coated metal surface is then subjected to a temperature of 400 to 500‹F followed by quenching in cold water after which the coated metal is dried, burnished, heated to 725‹ to 820‹F to sinter the resin coating. The final fluorocarbon layer may be buffed. The products may be used as non-stick cooking utensils, infra-red radiation reflectors, or sonic sectors. The metal hydrides are generally used as a powder and during the flame or plasma spraying operation decomposed to release hydrogen so that the layer of sprayed metal on the base is substantially free of metallic oxide.
Patent GB-750830-A (GB)
Title: Improvements in or relating to pneumatic conveying installations
Inventor: DOLF HANS RICHARD
IPC: B65G53/60
Filed: 1954-01-26
Abstract: 750,830. Pneumatic conveyers. BUHLER, GEB. Jan. 26, 1954, No. 2369/54. Class 78 (1). In portable apparatus for loading and unloading ships and vehicles and for conveying purposes in warehouses, the blower 20, which sucks up the material through the pipe 2 into the hopper 1 and forces it through the pipe 23, is driven by a motor 21 which is stopped automatically when the material reaches a certain level in the hopper or when an obstruction prevents the rotation of the bucket-wheel discharger 19 at the outlet of the hopper. A diaphragm 9, inserted in the side of the hopper, when depressed by the material closes a contact 10 which actuates a relay 34 to interrupt the lead 30 to the motor 21. The other lead 31 to this motor is also a lead to the motor 15 which drives the bucket-wheel 19 through a slip clutch 17 and shaft 16. This shaft is coupled mechanically to an electromagnetic brake controlling means 18. When an obstruction in the outlet prevents the rotation of the discharger 19 and shaft 16, the controlling means 18 comes into operation and opens a switch 36 in the lead 31, thereby stopping the motors 15, 21. Dust-laden conveying air passes from the hopper 1 through a pipe 5 into a flexible tubular filter 6 from which the dust is discharged by the wheel 7 and the clean air passes through a pipe 22 to the suction side of the blower.
Patent GB-252120-A (GB)
Title: Improvements in x-ray apparatus
IPC: H05G1/52
Filed: 1926-01-27
Abstract: 252,120. M³ller, C. H. F. (Firm of]. May 18, 1925, [Convention date]. R÷ntgen-ray tubes.-An incandescent-cathode tube has a focussing member connected to a control device which varies the electric or magnetic field between the focussing member and cathode so that the focus automatically expands when the current through the tube increases. In one arrangement, the secondary winding of a supply transformer 1 is connected directly to the anode 2 of the tube and through a resistance 3 to the cathode 4. The focussing-member 6 is connected to the anode 10 of a thermionic valve, of which the filament cathode 8 is connected to the cathode of the X-ray tube, while the grid 9 is connected to the end of the resistance 3 remote from the X-ray tube. In another arrangement the resistance 3 is replaced by the primary winding of a transformer, the secondary of which is shunted by a resistance and is connected to the cathode and focussing member of the X-ray tube.
Patent GB-178560-A (GB)
Title: Improvements in or relating to autoclaves and the like apparatus
IPC: B29C35/02
Filed: 1921-01-19
Abstract: 178,560. Brown, E. Jan. 19, 1921. Digester covers.-A digester 2 mounted in a casing 6 with heating burners 26, is provided at the top with an elliptical opening adapted to be closed by a lid 7 engaging the underside. A counterbalance 10 supports the lid by a cord 14 and screw 13. A bridge 21 pivoting on a stud 22, can be swung over the opening, a gap 23 in the centre embracing the screw 13 so that on screwing down a wing nut 20 the lid is secured. The lip 8 of the cover is provided with a ring 9 of packing- material.
Patent GB-246858-A (GB)
Title: Improvements in and relating to grapples
IPC: E21B31/18
Filed: 1926-01-28
Abstract: 246,858. Bridgeport Machine Co., (Assignees of Gore, H. S.). Jan. 28, 1925, [Convention date]. Void (Published under Sect. 91 of the Acts]. Borehole apparatus.- Grappling means for removing casings, broken pump rods, bits &c. from wells comprise two or more slips held on a relatively-movable head by a. ring, movement of the head causing the slips to pivot on the ring. In Fig. 2, slips 3 have serrated parts 14 for engagement with the broken pump rod &c. 2, a ring 4 encircling the slips and holding them in position. round a head 10 on a rod 9, On lowering the device into a well, the bevelled lower ends 12 of the slips prise the rod &c. 2 away from the casing, the rod then entering between the slips; on lifting the rod 9, the upper ends of the slips are forced apart causing the lower ends to grip the rod &c. 2. The curvature of the slips above the ring 4 is such as to allow a slip to be removed downwardly to dis-assemble the tool. In Fig. 6, the slips 22 have external serrations 31 above the ring 23 to grip the casing 21 which is to be raised: the slips have at their lower ends a shoulder 32 normally supporting a tapered gripreleasing member 34. If the appliance is to be removed from the well without the casing, it is lowered until the member 34 strikes the bottom of the well and consequently spreads the lower ends of the slips; while the tool is being raised,. the member 34 is retained in slip-spreading position by friction.
Patent GB-190050-A (GB)
Title: Improvements relating to the valve actuation of internal combustion engines
IPC: F01L1/12
Filed: 1922-01-28
Abstract: 190,050. Hagens, H. Jan. 28, 1922. Cam mechanism.-In cam valve-gear for internal-combustion engines, antifriction rollers 14 provided in the cam-actuated rockers 1 - - 4 are prevented from axial displacement by discs 15 secured upon the cam-shaft at the sides of the cams 16, 17.
Patent GB-768083-A (GB)
Title: Improvements in or relating to organic compounds
IPC: C07F17/00
Filed: 1954-01-28
Abstract: The invention comprises compounds of formula RnMX where R is a cyclopentadienyl-containing radical, n is 1 or 2, M is a heavy metal as defined below or As, Sb, B or P and X is halogen.  They may be prepared by reacting a cyclopentadienyl-containing Grignard reagent or alkali metal compound with a halide of the desired metal, arsenic, antimony, boron or phosphorus.  The reaction may be conducted in an anhydrous solvent such as ether.  The cyclopentadienyl-containing radical may be derived from cyclopentadiene, indene or fluorene (which may be substituted by hydrocarbon radicals) or from compounds of formula <FORM:0768083/IV(b)/1> wherein one of a or b may be O and the other an integer greater than 1 or both a and b may be integers greater than 1 and may be the same or different, and R1 may be hydrogen or a hydrocarbon radical.  A comprehensive list of hydrocarbon radicals which may be used as substituents is given. Heavy metals specified are copper, silver, gold, zinc, cadmium, mercury, aluminium, gallium, indium, scandium, yttrium, lanthanum, germanium, tin, lead, titanium, zirconium, bismuth, vanadium, colombium, chromium, molybdenum, manganese, technetium and rhenium. In an example anhydrous zinc chloride is reacted with cyclopentadienyl magnesium bromide in anhydrous ether to give cyclopentadienyl zinc chloride.  Detailed preparations of di-(cyclopentadienyl) chromium bromide and cyclopentadienyl cadmium iodide are given.  The Specification also includes a long list of similar compounds which can be prepared by the process of the invention, including di-(1-methyl-cyclopentadienyl) boron fluoride and bromide, di-(3-sec-butyl indenyl) boron chloride, di - (2,3 - dimethyl - cyclopentadienyl) phosphorus fluoride, di - (4,5 - di - phenyl-indenyl) phosphorus chloride and di-(3-ethyl fluorenyl) phosphorus bromide.