baber/WOPTO huggingface dataset:
Patent GB-700523-A (GB)
Title: Improvements in and relating to electroscopes
Inventor: GREEN GEORGE HENRY
IPC: H01J47/04
Filed: 1951-05-15
Abstract: 700,523. Electroscopes. BRITISH OPTICAL & PRECISION ENGINEERS, Ltd., and MINISTER OF SUPPLY. July 28, 1952 [May 15, 1951], No. 11275/51. Class 37 A portable electroscope for indicating X-ray dosage or amount of Gamma radiation incorporates an indicating fibre assembly 2 connected to the case 1, an insulated collector electrode 9 surrounding the fibre assembly, and a condenser formed by a cyclinder 10 separated from the walls of a cylindrical trough 14 by a thin layer of e.g. polystyrene to extend the radiation range. The instrument includes a viewing microscope 3, the objective lens 6 of which forms an image on the graticule 7 of a flexible quartz fibre indicating element 8 mounted on the assembly 2. Parts of the dielectric material 12 project upwardly to form shoulders 18 surrounding the connectors 13 in order to increase the length of the surface leakage paths. The cylinder 9 may be closed at its upper end, a centre portion being cut away to provide a window.
Patent GB-741326-A (GB)
Title: Improvements in or relating to d.c. amplifiers
Inventor: MILSOM FREDERICK ROGER
IPC: H03F3/40
Filed: 1953-04-23
Abstract: 741,326. Discharge-tube amplifying circuits. SMITH & SONS (ENGLAND), Ltd., S. June 24, 1954 [April 23, 1953], No. 11277/53. Class 40 (6). In a D.C. amplifier comprising a main D.C.- coupled amplifier and an auxiliary amplifier for correcting drift, the latter is provided with an initial stage of magnetic amplification and positive feedback is provided between the output and input of the auxiliary amplifier. An input signal, Fig. 1, is applied over resistor 6 to a main D.C.-coupled amplifier 1 and also over an isolating resistor 10 to an auxiliary magnetic amplifier 9 fed from an A.C. source 12, preferably of about 10 kc/s. The output is applied over resistors 13, 14 as negative and positive feedback to the input of the amplifier 9 thus increasing the input impedance and stabilizing the forward gain of the auxiliary amplifier 9. The output from resistor 15 is added to the input signal in the first stage of the main amplifier so that the D.C. level is enhanced, higher frequencies being unaffected since the gain of amplifier 9 falls off rapidly with frequency. Since the overall gain of the circuit is determined by the negative feed-back resistors 5, 6 the effect of drift is reduced by a factor substantially equal to the gain of amplifier 9. In a modification, Fig. 2, resistors 17, 16 are arranged between the output and input of the main amplifier 1 having a ratio equal to the gain of the amplifier. The potential at point A is applied to the input side A of resistor 10. Any drift in potential causes a compensating potential to be applied to the first stage of the main amplifier 1.
Patent GB-256306-A (GB)
Title: Improvements in or relating to ingot moulds for casting metals
IPC: B22D7/12
Filed: 1925-05-01
Abstract: 256,306. Naylor, G. W., Naylor, J. F., and Naylor, W. May 1, 1925. Casting processes; moulds.- To avoid defects in ingots, caused bv excessive swirling of the metal when pouring, balls, flakes, grains, sheets, strips, rolls, ropes or mats of wood pulp, cork, cokebreeze, hemp, paper, rushes, salt, sawdust, straw, &c., are placed in the mould. This material may be secured to a stripping peg as shown in the Figure, or by arranging it to project between the mould and its bottom or into holes in, or tar, graphite, &c. on, the mould bottom.
Patent GB-400229-A (GB)
Title: Improvements in or relating to two-stroke sleeve-valve internal combustion engines of the liquid fuel injection compression ignition type
IPC: F01L5/10
Filed: 1932-04-20
Abstract: 400,229. Valves. RICARDO, H. R., 21, Suffolk Street, Pall Mall, London. April 20, 1932, No. 11353. [Class 7 (vi).] In two-stroke engines of the liquid-fuel injection type, a thickened part of the sleeve valve is formed with inlet passages for the scavenging-air shaped so as to cause the air to rotate about the cylinder axis. The Figure shows a cross section through the thickened part B<2> of the sleeve valve, which is formed with passages B<3> which admit the scavenging-air as they are uncovered by the piston. The part B<2> works up and down in the scavenging-air belt formed around the cylinder, to which the passages B<3> are continuously open. The drive for the sleeve valve is connected thereto at or adjacent to the part B<2>, and may comprise a crank F giving the valve a combined oscillating and reciprocating movement. The valve preferably controls exhaust ports at the end of the cylinder remote from the scavenging-air passages, or, in the case of a double-acting engine, at both ends of the cylinder.
Patent GB-113742-A (GB)
IPC: F01M9/10
Abstract: 113,742. Coatalen, L., and Sunbeam Motor Car Co. Aug. 16, 1917. Preventing escape of oil from cam - shaft casings.-To prevent the escape of oil from the cam-shaft casing of an internal-combustion engine for aircraft, &c., which is likely to occur through the openings provided for the valve tappets, &c., a pump a draws oil or air from the casing through a pipe c, and delivers it to the crank chamber. There may be an additional suction pipe c<1> communicating with the glands d of the valve tappets e. The reduction of pressure in the casing prevents the oil from escaping.
Patent GB-117945-A (GB)
Title: Improvements in Vehicle Wheels.
Inventor: ROGERS JAMES EDWARD
IPC: B60B9/00
Filed: 1917-08-08
Abstract: 117,945. Rogers, J. E., and Patterson, W. W. Aug. 8, 1917. Spring wheels with continuous outer rigid ring and helical springs. - The outer wheel member 10 is supported from the axle 1 by radial springs 31 on arms 5 of a hub spider 4 and two sets of circumferentially-arranged springs 34, 35. The outer ends of the springs 31 support blocks 28 which act as guides for the arms 5 and have limited circumferential play in slots in a ring 24, 25 fixed to the wheel spokes 10. This play is resisted in the forward direction of the wheel by a set of strong springs 34, the rebound in the opposite direction being damped by weaker springs 35. Lateral stability is obtained by hub disks 6, 7 guided between pairs of plates 12-12, 18-19 respectively carried by the wheel 10. The plate 19 is recessed to take a packing-ring 20.
Patent GB-440770-A (GB)
Title: Improvements in and relating to foam-preventing apparatus for the treatment of liquids in vacuum
IPC: B01B1/02
Filed: 1935-04-12
Abstract: <PICT:0440770/III/1> <PICT:0440770/III/2> Foaming in apparatus used for the vacuum treatment or degasification of liquids, is prevented by the application thereto of an electric field.  As applied to a Claissen flask, the upper part is constructed with double walls and the space therebetween evacuated.  Sealed within the latter is an electrode 2 connected to one pole of a high frequency apparatus to form a vacuum electric discharge device.  In a modification, the device is in the form of a tube 3, Fig. 2, extending into the liquid or the vapour space.  The degasification is increased by the introduction of conductive substances into the liquid, such as pieces of aluminium foil or sheet platinum.
Patent GB-727705-A (GB)
Title: Improvements in or relating to the production of film elements
IPC: C08J7/056
Filed: 1953-04-27
Abstract: To provide increased adhesion between a water-permeable hydroxyl polymer layer such as a partially or completely hydrolysed polyvinyl acetate or copolymer thereof as with methyl acrylate, methyl methacrylate or ethylene, which may be coagulated with boric acid or an ester thereof with a polyhydric alcohol, and a hydrophobic film base such as a cellulose ester, nylon, polyvinyl chloride or, particularly, polyethylene terephthalate, the film base is subbed with a layer of vinylidene chlorideacrylic ester-itaconic acid copolymer, which may be prepared and coated in the way described in Specification 718,422 before application of the hydroxyl polymer and thereafter the product is heated to a temperature of 70 DEG  to 150 DEG  C. Specifications 598,477, 627,125, 627,353, 635,294, 661,477 and 662,793 also are referred to.
Patent GB-1031480-A (GB)
Title: Improvements in apparatus for severing strip material into lengths
IPC: B26D1/00
Filed: 1963-03-25
Abstract: 1,031,480. Conveyers. DUNLOP RUBBER CO. Ltd. March 25, 1963 [April 6, 1962], No. 11635/63. Heading B8A. [Also in Division B5] A conveyer system for a machine (see Division B5) for severing rubber strip comprises a conveyer 16 for supplying the strip to a conveyer 27 at a severing station, and a conveyer 98 which is continuously driven to maintain a tension on the strip during severing. The conveyer 27 comprises a plurality of spaced-apart belts 27a on rollers 29, 30, roller 29 being connected by a chain 33 to the roller 17a of the conveyer 17 which is driven from a motor 24 by a chain 25 and clutch 26 arranged to be disengaged to stop the conveyers during a severing operation. The conveyer 98 has a plurality of rollers 98a which are frictionally driven by a belt 102 pressed against the rollers by adjustable weights 110, the belt being driven by a chain 109 driven from a continuously operating output conveyer 118.
Patent GB-823859-A (GB)
Title: Typewriter with carbon-ribbon typing device
IPC: B41J33/26
Filed: 1956-04-18
Abstract: 823,859. Ink-ribbon mechanisms. OLYMPIA WERKE A.G. April 18, 1956 [July 26, 1955], No. 11783/56. Class 100(4) A once-only carbonribbon feeding mechanism comprises an endless rubber belt 15 which is guided over a pulley 17 placed on the usual ribbon spool shaft 16 and drives a pair of rollers 13, 14 between which the carbonribbon 6 is drawn. The roller 14 is geared and spring urged to the roller 13 which has ribbon-retaining flanges 13a, the usual ribbon-reversing lever 22 is held by the belt 15.
Patent GB-118068-A (GB)
IPC: F16H35/00
Abstract: 118,068. Schneider et Cie. Oct. 13, 1917, [Convention date]. Eccentrics.-The slide valve of an engine or pump is actuated by a reversible eccentric E which is free to rotate upon a longitudinally-movable shaft D and carries disks E', E<2> provided with holes e<1>, e<2> which are engaged by spring-pressed bolts G<1>, G<2> carried in driving members F<1>, F<2> secured to the shaft at the desired angular distance apart. The strain is taken off the bolts by projections h<1>, h<2> on the disks which are engaged by tappets g', g<2> on the driving- members.
Patent GB-166378-A (GB)
Title: Improvements in and relating to magneto electric machines
IPC: H02K21/48
Filed: 1920-04-28
Abstract: 166,378. British Thomson - Houston Co., Ltd., and Young, A. P. April 28, 1920. Magneto-electric machines. - In a magneto having are-shaped magnetic pole-pieces 1, 2 embedded in a non-magnetic fly-wheel 3, the fixed laminated armature core comprises two limbs 7, 8, one carrying a primary coil 10 and secondary coil 11 for ignition and the other a low-tension winding 9 for auxiliary purposes. The contactbreaker 17 may be mounted with the armature, and the whole be adjustable for timing. A commutator may be mounted on the shaft to reverse the alternate half-waves generated in the coil 9 for battery charging.
Patent GB-121704-A (GB)
Title: Letter-sheets and the like.
Inventor: HEALY GEORGE FRANK
IPC: B42D15/08
Filed: 1918-07-10
Abstract: 121,704. Healy, G. F. July 19, 1918. Letter-sheets.-The letter-sheet, shown in Fig. 1, is adapted to be folded along the line 5 and then again at right-angles to this line. Adhesive is provided at 8, and a printed oval at 3 to receive the addressee's name and address, together with a cut-out 7 to register with the oval 3. The folded sheet may be opened by inserting a knifeblade &c. at 12.
Patent GB-931036-A (GB)
Title: Improvements in panels for making electrical connections
Inventor: BONWITT WILHELM FRIEDRICH
IPC: H01R31/02
Filed: 1961-04-04
Abstract: 931,036. Two-part couplings. BURNDY CORPORATION. April 4, 1961, No. 11901/61. Class 38(1). A socket assembly comprises a multi-apertured panel 10 (Fig. 1), each aperture 12 containing a resilient, double-ended socket contact 22, comprising a plurality of resilient prongs 20, brazed on to a metal ring 24 and held in grooves 18 by bent-over ends 32, each prong also being inwardly bowed adjacent each end for retentive co-operation with groove 30, formed in a cooperating plug member 26. Adjacent socket contacts may be electrically interlocked by means of U-pieces 38 having ends 44 clipping underneath the brazing ring 24. Alternatively (Fig. 4) the apertures may be part conical and the socket contacts 22 omitted, the U-pieces 62 having their ends 66 bent round the back of the panel 50 and the resulting corners 64 used for retentive co-operation with groove 56 formed in the nose of a conical plug member 54.
Patent GB-1385842-A (GB)
Title: Unsaturated esters of polyhydroxy-bis-oxazolines their production  and their applications
IPC: C08F20/00
Filed: 1973-03-13
Abstract: 1385842 Unsaturated esters of poiyhydroxybis-oxazolines INSTITUT FRANCAIS DU PETROLE and COMMISSARIAT A L'ENERGIE ATOMIQUE 13 March 1973 [13 March 1972] 11925/73 Heading C2C [Also in Division C3] Novel esters of the formula wherein R 1 , R 4  and R 4 <SP>1</SP> are divalent aliphatic, alicyclic or aromatic hydrocarbon radicals; x is 0 or 1; R 2  and R 3  are hydrogen atoms or monovalent aliphatic, alicyclic or aromatic hydrocarbon radicals; Y is hydrogen, halogen or alkyl and each B is hydrogen or a group of the formula at least two of B in a particular compound not being hydrogen, are prepared by reacting at least one unsaturated monocarboxylic acid of the formula and/or at least one ester, chloride or anhydride thereof, with a hydroxylated bis-oxazoline of the formula The compounds of the invention may be added to unsaturated monomers and/or saturated or unsaturated addition and condensation polymers to form coating compositions. The hydroxylated bis-oxazoline may itself be produced by reaction of a dicarboxylic acid having the formula HOOC-(R 1 ) x -COOH or an ester, halide or anhydride thereof, with an amino-alcohol of the formula
Patent GB-273631-A (GB)
Title: Improvements in dough mixing and kneading machines
IPC: A21C1/00
Filed: 1927-05-04
Abstract: 273,631. Pott, W. May 4, 1927. Rotary mixers. - In a dough-kneading machine comprising a rotating bowl in which a kneading arm is oscillated the arm f is slotted and rides over a roller g mounted on the frame d. The arm is also guided by side rollers i<1>.
Patent GB-291784-A (GB)
Title: Improvements in or relating to processes of curing cementing materials
IPC: C04B40/04
Filed: 1928-04-23
Abstract: 291,784. Barber Asphalt Co., (Assignees of McRac, F. W.). June 10, 1927, [Convention date]. Emulsions, making. - A waterproof material for spraying concrete comprises a solution in petroleum distillate of a mixture of asphalt and Gilsonite from which the light oils have been evaporated by heating. Some of the ingredients are stated to be a collodial solution.
Patent GB-567903-A (GB)
Title: Improvements in filters for fluids
IPC: B01D46/28
Filed: 1943-07-23
Abstract: 567,903. Filters. HEATHER, F. July 23, 1943, No. 12031. [Class 46] [Also in Group XXVIII] A filter screen comprises a plurality of brushes having bristles radiating from a central stem, which brushes are arranged parallel side by side in a frame with the bristles intermeshing and a foraminous wall is slidably mounted in the frame to bear on and deflect the bristles. This screen with the bristles having been dipped in oil, may be inserted in the intake trunk of an air-conditioning system. One form of screen is shown in sectional elevation, Fig. 1, and sectional plan, Fig. 3, wherein the brush stems h are inserted through slots g in top and bottom channel members a, b of the frame, these channel members being spot-welded to two pairs of side members c-d, e-f. The bristles of the brushes are deflected to S-shaped form by woven wire plates i, j slidingly inserted in opposite directions along the channel members a, b. Bristles k<1> of the end brushes project beyond the sides of the frame to ensure a close filtering fit when the screen is inserted in a trunking, fixing being effected by means of flange pieces 1<1> on the channel members a, b. An arrangement with two rows of brushes is described, Figs. 9-11 (not shown).
Patent GB-1294424-A (GB)
Title: Comestible product producing apparatus
Inventor: ALBANO MARCHIGNONI
IPC: A21C5/00
Filed: 1971-04-29
Abstract: 1294424 Bakery apparatus M ALBANO 29 April 1971 [5 May 1970] 12061/71 Heading A2A In apparatus for producing comestible products such as pizzas, a chain drive system from a motor 4 operates a flywheel 11, shafts 9, 10, a cam 38 for reciprocating a pawl 35 to cause intermittent advance of a conveyer 28, and a presser 45 for urging mixture in a hopper 3 towards a wall 3a. A normal lever 54 is operable to cause cams 12, 13, loosely mounted on the shafts 9, 10, to be driven by the shafts so that an arm 16 is moved downwardly to cause a charge of mixture to enter a mould 23, and then to the right, the wall 3a of the hopper having been depressed by a projection 27, so that the charge is ejected by a spring-loaded plunger 25 into a pan 31 carried by the conveyer. A presser 40, reciprocated vertically by the flywheel 11, flattens the mixture in the pan, and containers 41 deposit other ingredients, e.g. spices. These ingredients are released by motors 42 operated by switches 43 tripped by a hinged lug 32 on each pan. The pans are conveyed through an oven 44 and the cooked products discharged on to a platform 50. The apparatus may be adapted to process five rows of products spaced across the width of the conveyer.
Patent GB-1018040-A (GB)
Title: Improved induction melting furnace
IPC: H05B6/16
Filed: 1964-03-23
Abstract: 1,018,040. Induction furnaces. SINTEF. March 23, 1964 [March 27, 1963], No. 12072/64. Heading H5H. In an induction furnace having an iron core with projecting poles, each pole has a discshaped induction coil placed adjacent to a part of the furnace crucible which is extended downwards to form a tongue-shaped heat development chamber with substantially parallel walls. The coils are arranged substantially parallel with the outer wall of the tongue, which has a volume substantially less than that of the upper part of the crucible. In a three-phase arrangement, three tongues extend radially below the main part of the crucible, the coils and poles of the core projecting into the spaces between the tongues.
Patent GB-710995-A (GB)
Title: Improvements in or relating to improved flavoring material and gelatine product
IPC: A23L27/12
Filed: 1952-05-13
Abstract: Butylated hydroxyanisole dissolved in citrus oil, e.g. 0.02-2 per cent. of butylated hydroxyanisole in orange, lemon or lime oil, delays the onset of oxidative deterioration.  Trials with ethyl hydrocaffeate, ethyl caffeate, alpha tocopherol acetate, hydroquinone, benzyl parahydroxybenzoate, nordihydroguaiaretic acid, iso-thymol, citric acid, ascorbic acid, propyl gallate, lecithin, sesamol, norconidendrin, alpha - naphthol, catechol, pyrogallol, wheat germ oil, and various mixtures of these substances are referred to.  Specification 569,345 [Group VI], is referred to.ALSO:Butylated hydroxyanisole dissolved in citrus oil, e.g., 0.02-2 per cent of butylated hydroxyanisole in orange, lemon or lime oil, delays the onset of oxidative deterioration.  Flavouring compositions of sotreated citrus oils dispersed in gelatine posses an extended shelf life.  Specification 569,345 is referred to.
Patent GB-437277-A (GB)
Title: Improvements in or relating to means for and methods of operating upon shoe soles
IPC: A43D8/48
Filed: 1934-04-23
Abstract: 437,277. Boot - making machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., HAZELTON, G., PRATT, J. W., and LINEHAM, R. A., Belgrave Road, Leicester. April 23, 1934, No. 12126. [Class [Class 17 (i)] [See also Group VIII] Heel seats, shaping.-Heel seats on unattached soles, especially for slippers made on the turnshoe principle are made by cutting a channelshaped notch at each side of the sole at such a position that the forward edge of the notch is adapted to abut against the shoulder of the heel and then bevelling the remainder of the rear end of the sole. A suitable machine for cutting the notches comprises a knife 29 having a cutting edge of channel shape secured to a slide 13 reciprocated by a handle 17 provided with an arm 21 connected by a rod 23 with a treadle. A work table 35 is provided with heel end gauges 61, 63, gauges 65, 67, 69, 71 for engaging the side of the sole, and, on either side of the path of the knife, portions 55 of a fixed plate 45, which portions support the sole against the thrust of the knife. The heel end gauges are adjusted together by a right-and-lefthand screw turned by a head 103. To compensate for the difference in the inclination of the median line of the sole for right and left shoes, the adjusting screw is provided with a collar 101 closely fitting a slot in a slide 83 engaged by a pin 91 on a lever pivoted at 85 and provided with a handle 89. Stops 95 limit the movement of the handle, which is moved to the right or left for a right or left sole, respectively, and retained in position by a spring plunger. The side gauges are adjusted laterally of the work table so that the gauge 65 contacts with the inside of a left sole while the notch on the outside edge is being cut, the gauge 67 with the same side while the inside notch is being cut, the other two gauges being used for a right sole. The remainder of the heel seat margin may then be bevelled by an Apex skiver.
Patent GB-540869-A (GB)
Title: Improvements in and relating to cores for instruments, apparatus and machines making use of magnetic induction
IPC: H01F27/34
Filed: 1940-07-25
Abstract: 540,869. Nickel-iron alloys. HARRISON, E. P. July 25, 1940, No. 12137. [Class 82 (i)] [Also in Group XXXV] Magnetic cores for transformers, instruments &c. and having a low hysteresis loss comprise a number of convolutions of high permeability nickel-iron wire or ribbon maintained in a state of tension and connected to a source of A.C. The nickel-iron alloy preferably consists of 76.62 per cent. nickel, 16.51 per cent. iron, 5.11 per cent. copper, 0.38 per cent. manganese, 1.35 per cent. chromium and 0.26 per cent. silicon.
Patent GB-739195-A (GB)
Title: Improvements in garment hangers
Inventor: GILL EDWARD
IPC: A47G25/24
Filed: 1953-05-02
Abstract: 739,195. Coat hangers. GILL, E., Ltd. July 12, 1954 [May 2, 1953], No. 12219/53. Class 52 (5). The ends of a loop of wire, formed as a coat hanger, project through a metal coupling sleeve securing them together, one of the ends being formed into a suspensory hook. As shown, the horizontal parts 7, 8 of loop 1 of wire are secured together by clenching a split sleeve 12, the ends 9, 10 of the wire projecting upwards through an aperture 14 in the sleeve and the end 10 being bent into an eye or into a hook 11. The wire, preferably, has a tubular braid covering 15, the ends of which are secured and covered by the coupling sleeve.
Patent GB-1418193-A (GB)
Title: Dispenser for hypochlorite gels
IPC: A61K9/12
Filed: 1973-03-14
Abstract: 1418193 Pressurized dispensing containers WILKINSON SWORD Ltd 6 March 1974 [14 March 1973] 12230/73 Heading F1R A two compartment pressurized dispenser has a source of hypochlorite ions having a pH in the range 11-12.5 in one compartment and an aqueous fluid carrier gel of lower pH in the other, and a mixing valve arranged to dispense a hypochlorite ion-containing gel of a pH in the range 9-10.9 from the two compartments.