baber/WOPTO huggingface dataset:
Patent GB-1001301-A (GB)
Title: Improvements in or relating to processes for applying alloys to metal surfaces
Inventor: LEVANDOWSKY JEAN
IPC: G21C13/06
Filed: 1962-03-30
Abstract: A rotatable plug or cover for a nuclear reactor has a trough and crown construction, the trough into which the crown dips being filled with a low melting alloy, preferably a Bi/Sn eutectic (56-60% Bi, the remainder Sn), which acts as a seal.  The cover rotates on ball bearings, and can only be turned after the alloy is rendered molten by means of associated heating elements.  The surfaces of the trough and crown preferably consist of stainless steel and these surfaces must be treated to ensure the alloy sticks to them.  Such a surface, i.e. one having at least a portion thereof formed from a non-oxidizing metal, e.g. stainless steel, is treated so that a readily liquefiable alloy, e.g. the above eutectic, will stick to it by tinning the metal surface with a thin layer of said alloy in the presence of a chemically active or strong flux, then covering this surface with a thin layer of a soft flux.  The surface thus covered is preheated to 80 DEG C., and the said alloy poured on to the prepared and preheated surface at a temperature of about 200 DEG C., and the whole is heated slowly at about 150 DEG C. to homogenize the various substances of the alloy and to remove the soft flux, whereafter the whole is cooled.  Prior to tinning, the surfaces may if necessary be cleaned with an aqueous solution containing 2% HF and 10% HNO3 and heated to 60 DEG C., degreased with ethyl acetate and thoroughly washed with water. The tinning operation is performed by means of shaped, heated (340-400 DEG C.) irons), and the coating applied is 0.5-0.7 mm. thick.  The surface being tinned is maintained horizontal by an appropriate jig.  After tinning the surface is washed and a coating 0.3-0.4 mm. thick of the soft flux is applied. The chemically active strong flux used is preferably an aqueous solution of phosphoric acid containing a small quantity of ammonium chloride, and the preferred soft flux is alcoholized colophony. Other alloys suggested for use are Bi,Pb,SnCd, and Bi,Pb,Sn.
Patent GB-584318-A (GB)
Title: Improvements in or relating to dumpers or like vehicles
IPC: B60P1/28
Filed: 1944-06-28
Abstract: 584,318. Motor-vehicle frames. BOYDELL & CO., Ltd., E., and COLDWELL, J. D. June 28, 1944, No. 12261. [Class 79 (iv)] A dumper or like vehicle chassis comprises an articulated, quadrilateral system of levers, two of which levers are formed by the front and near axles, and a rigid frame to which all four levers are pivotally attached intermediate their ends. on longitudinal and transverse axes. As shown, the lever system is constituted by live axles a, b connected by side members c, d through. spherical joints, while the frame consists of side members f and pairs of cross members g, h, the pivotal connections between the levers and frame being constituted by studs i on the members f, on which the side members c, dare slidably pivoted, and trunnions j in the cross members g, h in which the differential casings a<1>, b<1> journalled. The superstructure and tipping bucket are mounted on the frame. The side members c, d may be other than parallel in. plan view and the studs i need not be central of the members but, for example, at a distance from the axle a equal to twice the distance from the axle b.
Patent GB-539218-A (GB)
Title: Improvements in and relating to snap fasteners
IPC: F16B5/12
Filed: 1940-07-29
Abstract: 539,218. Fastenings. CINCH MANUFACTURING CORPORATION. July 29, 1940, No. 12271. Convention date, Aug. 15, 1939. [Class 44] A fastening for securing a moulding &c. 1 to a support 2 comprises a strip of metal bent at 12 to form a bowed shank 11, 13, and then bent to form reverse bends 16, 17, the free ends 20 extending parallel to each other and to the axis of the shank. The fastenings are slid along the inside of the moulding from an open end and then forced through openings 7 in the support.
Patent GB-977971-A (GB)
Title: An improved radar scanning device
Inventor: VOLES ROGER
IPC: H01Q3/12
Filed: 1960-04-06
Abstract: 977,971. Pulse radar; aerials. ELECTRIC & MUSICAL INDUSTRIES Ltd. April 6, 1961 [April 6, 1960], No. 12275/60. Headings H4A and H4D. Relates to a pulse radar in which the beam is scanned by a Foster scanner of the type described at pages 269 and 270 of " Radio & Radar Technique " by A. T. Starr and comprising a fixed cylindrical parabolic reflector fed by a sheet waveguide, a rotating cone with a diametrical slit being provided in the waveguide to cyclically vary the relative lengths of the transmission paths along the guide thereby scanning the beam. According to the present invention the sheet waveguide comprises a plurality, e.g. three, a, b, c, as shown, of spaced feed points such that the beams produced by energization of two adjacent feed points would differ in direction by ## and the pulses to be transmitted are applied sequentially to the feed points, the rate of rotation of the Foster cone being so related to the pulse recurrence period #t, Fig. 2, that the change in directions ## due to sequential energization of two adjacent feed points is equal and opposite to the change in direction ## produced by the Foster scanner in the period #t so that the first three pulses are transmitted in the same direction #1, the next three pulses are transmitted in a direction #2 where (#2-#1) = 3## and so on. The same system may also be used for reception.
Patent GB-865232-A (GB)
Title: Improvements in or relating to sorting machines for perforated record cards
Inventor: PERRIN JOHN
Filed: 1958-04-17
Abstract: 865,232. Statistical apparatus. INTERNATIONAL COMPUTERS & TABULATORS Ltd. March 18, 1959 [April 17, 1958], No. 12284/58. Class 106 (1. A record card sorter is described which selects those cards from a pack of cards which contain a desired pattern of holes. In a first embodiment a card is selected if it contains the desired pattern even though it contains other holes not forming part of the pattern while in a second embodiment a card is only selected if it contains the desired pattern of holes and no others. Each record card is sensed by being passed between two plates 2, 3, Fig. 3, and having an array of sensing-pins 4 brought down upon it. The sensing-pins 4 are normally depressed downwards by springs 26 via setting-pins 28. The setting-pins 28 are, however, mounted in a frame and can be moved bodily, under manual control, slightly leftwards relatively to the sensing-pins 4, as shown in Fig. 6. (The displacement in Fig. 6 is, however, shown towards the right). In operation a card punched with the desired pattern is placed between the sensing- plates 2, 3, the setting-pins are moved leftwards, the entire sensing unit is brought down upon the card, the setting pins 28 are moved back to their normal position and finally the sensing unit is raised from the card. This results in a pattern of setting-pins, corresponding to the desired pattern read from the card, not having their ends locked in notches in the sensing-pins 4, as shown in Fig. 7. The card bearing the desired pattern is then removed and the sorting operation proper can be commenced. During the sorting each card is sensed by lowering the sensing-unit upon it and before it is raised a testing-bar 45, Fig. 3, is urged leftwards. If the card being sensed contains the desired pattern, as in Fig. 8, the testing bar will be free to move slightly leftwards to cause the card to be routed to a " selected " box when it leaves the sensing unit, whereas if the card being sensed does not contain the desired pattern, as in Fig. 9, the test bar 45 will be prevented from moving by at least one setting-pin 28 which will not have passed through a hole, and the card will be routed to a reject box. In the second embodiment the setting-pins 28 are differently shaped so that the presence of a hole additional to the desired pattern prevents the test bar moving.
Patent GB-128053-A (GB)
Title: Improvements in Stationery.
Inventor: COLLINS CHARLES MILLINGTON
IPC: B42D15/08
Filed: 1918-07-30
Abstract: 128,053. Collins, C. M. July 30, 1918. Letter - sheets. - Relates to lettersheets which are adapted to be folded at the middle 1 and in which each half is formed with a lateral sealing-flap 4, and one half is also formed with an end sealing-flap 5, the flaps, when turned down, sealing the folded sheet along three edges. According to the invention, the flaps are separated from the body of the sheet by lines of perforations; the perforations may be circular or elongated.
Patent GB-1508009-A (GB)
Title: Stencils
IPC: G03G13/26
Filed: 1975-03-25
Abstract: 1508009 Coated stencil blanks KORES HOLDING ZUG AG 25 March 1975 [26 April 1974] 12441/75 Heading B2E [Also in Divisions B6 and G2] A stencil blank comprises a perforated or porous foil of synthetic plastics or metal having a coating thereon which occludes the perforations or pores, the coating being locally removable by pressure or traction applied perpendicular to the coating. The foil may be a vinyl polymer, polypropylene, polyethylene, polyester, aluminium or copper. The perforations or pores may be produced by leaching of soluble particles from a layer of the material, by stretching a foil having pigment particles therein, by high frequency sparking, or by using a focussed pulsed laser. The coating may be of collodian, wax, paraffin, cellulose esters or ethers, PVC, polyvinyl alcohol, vinyl acetate-vinyl chloride copolymers, or styrene polymers, and may include fillers, pigments and plasticisers.
Patent GB-457169-A (GB)
Title: Improvements in caravans
IPC: B60P3/34
Filed: 1936-05-02
Abstract: 457,169. Folding caravans. BIRCH, A. H., 12, Poultry, London. May 2, 1936, No. 12505. [Class 108 (i)] A collapsable caravan comprises a base and a body consisting of two half portions hingedly connected to the base so as to lie on or close to the base and to be turned outwardly to occupy positions as lateral extensions of the base. To the outer edges of the base 1 are hinged two boxes or bunks 3, 3a and when folded outwardly are supported by beams 4 slidable into the base. The side walls comprise at each side two flaps 6, 7 or 6a, 7a foldable on to the top of the bunks. The roof comprises two rigid parts 8, 8a and portions 9 and side flaps 9a together with two flaps 10, 10a adapted when the caravan is erected to be extended, flexible flaps 7 being provided for weather purposes. The roof is supported by the walls and by pillars 12 which are hinged at 13 to uprights 14 and provided at their other ends with collars .15 slidable upon rods 16 fixed in the roof. A door 17 is provided which when the caravan is erected may be folded to serve as a step. The bunks 3, 3a are provided with recesses 20 to accommodate the upper parts of the wheels. The rigid cover may be dispensed with and a flexible cover supported by pillars arranged in the centre line of the vehicle. Brake and towing arrangements are provided.
Patent GB-1311331-A (GB)
Title: Back hoe orgrader
IPC: E02F3/36
Filed: 1970-03-16
Abstract: 1311331 Scoop-arm machines HOPPER Inc 16 March 1970 [19 March 1969] 12513/70 Heading E1F A back hoe or grader comprises a boom 15 pivoted at 16, a dipper 18 pivoted on the boom at 17, a work implement 21 including lever 20 pivoted on the dipper at 19, the distance between the pivots 16, 17 being substantially equal to that between the pivots 17, 19, links 44 pivotally connected to the boom and to the levers, rams 23, 25 for moving the boom and dipper, respectively, a first sprocket 54, Fig. 2 (not shown), coaxial with the pivot 16, a second sprocket 53 coaxial with the pivot 17 and connected to the dipper for turning with it, the sprocket 54 having twice the diameter of the sprocket 53 and being coupled to it by an endless chain 55, and means -for securing the sprocket 54 against rotation in one direction to coordinate the actions of the boom and the dipper whereby they move in opposite directions with the angular rate of movement of the dipper relative to the boombeing substantially twice the angular rate of movement of the boom about the pivot 16 so that the pivot 19 moves in a straight line. The ram 23 is pivoted to a subframe 30 which is movable about the pivot 16 by rams 31. The implement 21 includes a bucket 36 pivoted to a block 38 for movement by a rotary hydraulic device 39, Fig. 8 (not shown), and the block is pivoted at 40 on the levers 20 for movement by a second rotary hydraulic device 41. The links 44 are pivotally connected to slide blocks 46 slidably disposed between parallel guides 47 fixed to the boom, for movement by rams 49 from the position shown to a position in which the pivots of the links are coaxial with the pivot 17. The sprocket 54 is mounted on a shaft 58 and can be adjustably fixed to the shaft by a pin 60, Fig. 3 (not shown). An arm 64 is fixed to the shaft and carries a servo pilot valve having a roller 65 which is engageable with a circular stop 67. The servo pilot valve is connected in the circuit of the rams 23, 31 and operates the control valve for these rams, Fig. 10 (not shown).
Patent GB-1268893-A (GB)
Title: Meat skinning machine
Inventor: TOWNSEND RAY THEODORE
IPC: A22C17/12
Filed: 1970-03-16
Abstract: 1,268,893. Skinning machines. TOWNSEND ENG. CO. 16 March, 1970, No. 12589/70. Heading A2U. A slab of meat to be skinned is fed, skin lowermost, by a conveyor 46 to a pneumatic hold-down roll 66 and a longitudinally serrated gripper roll 34, both of which are driven to deliver the slab to a cutter blade 76 positioned to separate the skin from the meat, the skin passing below the blade and being detached from the serrations 112 by a serrated stripping roll 44 driven at a higher speed than the roll 34. The serrations 112 extend continuously across the roll 34, as do the serrations 114 on the roll 44, although the latter serrations may be of helical form to provide a self-cleaning action. The blade 76, adjustable by screws 78, is mounted on a shoe 70 which has a concave cylindrical surface 74 extending across the roll 34 and is carried by a pair of arms 72 pivotally supported at 80 and connected to a pair of air cylinders 82, springs 92 of which normally hold the blade 76 and surface 74 away from the roll 34. A piece of meat entering the space between the rolls 34, 66 is detected by photoelectric means 104 or a pressure-sensitive switch to cause air to be supplied above pistons 86 to bring the blade 76 and surface 74 into close proximity to the roll 34 as determined by adjustable stops 108, 110.
Patent GB-1137172-A (GB)
Title: Enclosures for electrical apparatus
Inventor: PEPPER LAURENCE REGINALD
IPC: H01H9/04
Filed: 1966-05-09
Abstract: 1,137,172. Minimizing explosions in electrical apparatus. PEPPERS OF WOKING Ltd. 9 Aug., 1967 [9 May, 1966], No. 12590/66. Heading ASA. An enclosure e.g. for electrical apparatus consists of a box having a body 3 and lid 2 and at least one communicating duct 4 between the interior and exterior of the enclosure, the duct and the junction between the lid and the body being of such dimensions and so constructed that, in the event of combustion of a flammable gas in the interior when the lid is in the closed position, the combustion gases are allowed to escape through the duct and the junction to prevent damage to the enclosure, the duct and junction being provided with cooling surfaces which are presented to the escaping gas whereby combustion is not transmitted outside the enclosure. As illustrated the cooling of escaping gas is effected in the duct by a flame arrester 6, and at the lid-body junction by a constricted labyrinth (Fig. 3) formed by interlapping flanges on the edges of the lid and body. The internal pressure rise can thereby be restricted to not more than 5 p.s.i.
Patent GB-1215524-A (GB)
Title: Improved teleprinter
IPC: H04L13/18
Filed: 1968-03-15
Abstract: 1,215,524. Electric selective signalling. CSELT-CENTRO STUDI E LABORATORI TELECOMUNICAZIONI S.p.A. 15 March, 1968 [17 March, 1967], No. 12630/68. Heading G4H. [Also in Division H4] Serial-bit data passes via a modem to a shift register from which parallel-bit data passes to an " on the fly " tapeprinter. A notched wheel rotates with the typewheel, each notch corresponding to a different symbol on the typewheel. An extra large notch defines a datum position. A counter counts the number of notches from the datum as the typewheel rotates, the counter output being compared with the received code signal so that the comparator gives an output when the print hammer is to be struck. After a delay the comparator output advances the tape for printing the next symbol. In transmission mode data from a keyboard passes to the shift register which outputs serial bit data to the transmission channel via a modem.
Patent GB-1315110-A (GB)
Title: Cigarette packages
IPC: B65D85/10
Filed: 1972-03-17
Abstract: 1315110 Laminates AKERLUND & RAUSING AB 17 March 1972 [26 March 1971] 12640/72 Heading B5N [Also in Division B8] A cigarette package (see Division B8) is made from a laminate comprising a layer of polyethylene 19 extruded over an aluminium layer 18 which is in turn joined by an extruded polyethylene layer 17 to a layer of paper 16 having an outer polyethylene layer 15.
Patent GB-182262-A (GB)
Title: Improvements in or relating to artificial fuel
IPC: C10L5/32
Filed: 1921-05-03
Abstract: 182,262. Kratochwill, R. A. May 3, 1921. Drawings to Specification. Composition fuel.-A brick of artificial fuel is formed of a mixture of fourteen ounces of dry coal dust, thirty grains of gum arabic, and eighteen drams of water. It may be coated with a material such as varnish for resisting detrimental atmospheric conditions.
Patent GB-962503-A (GB)
Title: Electrical inverter
IPC: H02M3/338
Filed: 1962-04-03
Abstract: 962,503. Transistor oscillator circuits; impedance networks. WESTINGHOUSE ELECTRIC CORPORATION. April 3, 1962 [April 11, 1961], No. 12788/62. Headings H3T and H3U. A self-oscillating inverter comprises at least one pair of semi-conductor switching devices connected in push-pull so as to become conductive alternately under control of a transformer, the primary winding of the transformer being connected in series with a tuned circuit, the natural frequency of which is arranged to be different when the circuit is first energized from that when oscillations have built up to the normal operating level. Fig. 1 shows a known inverter in which the two pairs of transistors 16, 18 and 22, 24 have regenerative feedback via transformer 34 so as to become alternately conductive at a frequency determined by the series tuned circuit 40, 42. The starting current is reduced by substituting the circuit shown in Fig. 3 for the series tuned circuit 40, 42. Capacitor C3 is initially uncharged hence the effect of the charging current via rectifier R2 will be to by-pass the auxiliary series tuned circuit R2, C2 and hence increase the natural frequency of the circuit connected between terminals A, B. If the core of transformer 32 is initially unmagnetized the duration of the first half-cycle will thus be insufficient for the current to build up to saturation level. A resistor (not shown) may be connected between terminal 4 and the base of transistor 16 to ensure that the first half-cycle is of the appropriate polarity. The frequency becomes reduced to one-half when C3 is fully charged. Fig. 2 (not shown), relates to triangular shaped flux waves produced when the circuit is operating into a reactive load 12. Specifications 869,454 and 882,126 are referred to.
Patent GB-752687-A (GB)
Title: Improvements in the manufacture of sintered iron bodies
IPC: B22F3/26
Filed: 1954-05-03
Abstract: 752,687. Powder metallurgy. HUSQVARNA VAPENFABRIKS AKTIEBOLAG. May 3, 1954 [May 2,1953], No. 12863/54. Classes 83 (2) and 83 (4). A method of making porous iron bodies, particularly driving bands for projectiles, comprises compacting iron powder to a density of 4.9- 5.9 grams per c.c., presintering preferably at 850-950‹ C., repressing to a density of 5.4- 6.2 grams per c.c. and resintering, preferably at 1200-1250‹ C for 2-3 hours. Electrolytic iron powder having an apparent density of not more than 2.7 and preferably between 2.3 and 2.6 grams per c.c. is used. It preferably contains less than 0.1 per cent carbon, less than 0.05 per cent silicon and less than 0.15 per cent of metals which form difficultly reducible oxides. If the powder has an apparent density in excess of 2.7 grams per c.c. it is heat-treated in a reducing or inert atmosphere and the resulting agglomerated particles crushed or ground. The initial compacting will be at 1.5-2.5 tons per sq. cm. and the second pressing at 2-3 tons per sq. cm. and both sintering treatments take place in hydrogen or an inert gas. After the final sintering the bands are given a phosphate treatment or are impregnated with paraffin to increase their resistance to corrosion and in order to reduce their coefficient of friction they may be treated with steam or dipped in molten sulphur to form a thin sulphide layer. The finished bands are mounted in the circumferential grooves in the shells by an hydraulic press, the pressure being kept below 40-50 kilograms per sq. mm. in order not to close the pores and they are then brought to final size by machining.
Patent GB-495043-A (GB)
Title: New synthetic resinous materials
IPC: C08G12/04
Filed: 1937-05-05
Abstract: Resins are prepared by reacting together, in the presence of an aliphatic monohydric alcohol containing 3 to 5 carbon atoms or of an alkyl monoether of an aliphatic dihydric alcohol and of an acidic catalyst, products obtained by alkaline condensations of formaldehyde with an amide R.CONH2 (where R is an alkyl group containing 2 to 16 carbon atoms, or an alkenyl, aralkyl or aryl group) and with urea, and removing the water of reaction. There are specified: amides-propionamide, butyramide, iso-butyramide, methacrylamide, benzamide, phenylacetamide, the mixed amides from coconut-oil acids; condensation products-N-methylol-amides, e.g. N-methylol-propionamide, N-methyl-methylene-bis-amides, mono- and di-methylol - urea; catalysts-organic carboxylic acids, e.g. phthalic, citric, maleic, succinic, lactic acids, phthalic anhydride; alcohols-monoethyl ether of ethylene- or diethylene-glycol.  The alkaline condensation products may be separately prepared, with or without isolation, or urea and an amide may be reacted with formaldehyde in presence of the alcohol and of alkali, then neutralized and acid-condensed.  Water of reaction may be removed by azeotropic distillation with or without addition of an aromatic hydrocarbon.  The alcoholic solutions obtained may be diluted, e.g. with white spirit, toluene, xylene, or turpentine, to form lacquers to which may be added plasticizers, e.g. castor oil, dibutyl phthalate, tricresyl phosphate, film-forming materials, e.g. drying oils, alkyd resins, and colouring materials. Alternatively, the alcohol may be removed by distillation.  The resins are of use for coating-compositions.  In examples: propionamide, butyramide, methacrylamide, benzamide, or phenylacetamide, and paraformaldehyde, ammonia, and butyl alcohol are refluxed, then dimethylolurea and phthalic anhydride added and refluxing continued, water and some butyl alcohol being then distilled off.  According to the Provisional Specification, monocarboxylic amides generally and alcohols generally are used in the process.
Patent GB-949585-A (GB)
Title: Improvements in axial flow type gas turbines
Inventor: MULLER HEINZ
IPC: F02C7/14
Filed: 1961-04-11
Abstract: 949,585. Lubricating. ENTWICKLUNGSBAU PIRNA VEB. April 11, 1961, No. 12947/61. Heading F2A. [Also in Division F1] In a means for cooling lubricant in an axial flow-type gas turbine 1, an annular cooler 7 is built into an air intake duct 6 of an ejector 5 which surrounds an end of a shell 3 and an exhaust duct 4. The exhaust gases cause cold air to be drawn in through the duct 6 and pass through an annular gap 8 between the cooler 7 and the shell 3 so that heat exchange takes place between the lubricant in the cooler and the air. The air intake is regulated by members 9 mounted on the ejector.