baber/WOPTO huggingface dataset:
Patent GB-739639-A (GB)
Title: Refrigerating system
IPC: F25D21/06
Filed: 1954-02-17
Abstract: 739,639. Refrigerating. KROYER, K. K. K. Feb. 17, 1954 [Feb. 20, 1953], No. 4707/54. Class 29. In a refrigerating system having a plurality of cooling elements supplied alternately with cooling agent, e.g. cold brine or an evaporating refrigerant, and having mutually spaced cooling surfaces, the surfaces are so spaced that any frost deposited on a previously refrigerated element tends to travel directly to the element being refrigerated owing to the vapour pressure field resulting from the temperature difference between the elements. Preferably the frost sublimes from the warmer element. As shown in Fig. 1, two evaporators 5, 6 are intertwined and fed with refrigerant by an expansion valve 3. They are connected alternately to the compressor suction pipe 8 by a three-way valve 7 actuated by a connection 9 from the motor 10. This may effect a change-over every time the compressor motor is started at the beginning of a refrigerating period or after a certain number of refrigerating periods. The changeover may also be effected by time control or by hygrometers. As shown in Fig. 2, a changeover vale 11 is located at the inlet end of the evaporators 5, 6 which have independent expansion valves 3<SP>11</SP>, 3<SP>1</SP> respectively. Each expansion valve is located in proximity to the evaporator which it does not control so that it will be defrosted. The expansion valves may be so constructed as to carry out additionally the functions of valve 11 which can be thus dispensed with. The change-over valves 7, 11 may be replaced by cut-off valves, one for each evaporator and actuated alternately. Where the change-over valve is located at the suction end of the evaporators a connection having a valve may be provided between the outlet ends of the evaporators and this valve may be opened manually or by a hygrometer to bring both evaporators into operation when a reduction in humidity is desired. Constructions of evaporators are described (Figs. 4-7, not shown) in which ice-trays and deep-freeze units are carried by the evaporators, means being provided to preserve the temperature difference between the evaporators by avoiding thermal shortcircuits between them through the ice-trays or deep-freeze units. Constructions having three and four interleaved, alternately-operating evaporators are described (Figs. 8 and 9, not shown).
Patent GB-255752-A (GB)
Title: Improvements in bodies for motor vehicles
IPC: B60N2/30
Filed: 1926-02-19
Abstract: 255,752. Soc. Anon. des Automobiles et Cycles Peugeot. Aug. 10, 1925, [Convention date]. Seats and seat backs, arrangement and disposition of; luggage-holders. - A touring car is provided with a hinged rear panel 9 which is adapted to be lowered into a horizontal position as shown in Fig. 3 to form a luggage carrier, and the rear seat bottom board is adapted to form an extension of the seat bottom support when the vehicle is to be used as a goods wagon. The rear panel 9 is separate from the seat back 6, 7 which is hinged to a board 3 adapted to be rotated into the position shown in Fig. 5 to form a floor in extension of seat support 2, and by this means the seat back is carried into a position immediately to the rear of the front seats. The seat 4 is stowed away in the receptacle formed below the board 3.
Patent GB-946758-A (GB)
Title: Epoxy resins and their use in abrasive articles
IPC: C08G59/42
Filed: 1960-02-11
Abstract: A curable composition comprises a polyepoxide comprising at least 75% by weight of 4-vinylcyclohexene dioxide, and a carboxylic acid internal anhydride comprising at least 90% by weight of pyromellitic dianhydride.  Other polyepoxides specified as replacements for a small proportion of the vinylcyclohexane dioxide are: dicyclopentadiene dioxides 3,4-epoxy-6-methyl cyclohexyl methyl-3,4,-epoxy-6-methyl cyclohexane carboxylate, the diglycidyl ether of bisphenol A, and the tetraglycidyl ether of 1,1,2,2-tetrakis- (p-hydroxy phenyl) ethane.  The only other anhydride specified is maleic.  Optional additives specified are: activators (dicyandiamide and/or melamine), furfural, fillers (Wollastonite, CaSO4, flint and cryolite) and abrasives (Al2O3)  The compositions are used as adhesive for bonding abrasive coatings to a backing e.g. of cloth.  Specification 734,045 is referred to.ALSO:In making coated abrasion products, abrasive grains are bonded to a backing, e.g. of cloth, with an adhesive mixture of a polyepoxide comprising at least 75% by weight of 4-vinyl-cyclohexene dioxide and a carboxylic acid internal anhydride comprising at least 90% by weight of pyromellitic anhydride (see Division C3).  The adhesive coating is applied to the backing, abrasive grains (e.g. Al2O3) are applied by a mechanical or electrostatic method and the adhesive coating set by heating.  A sand-size coat may then be applied and the whole cured by heat.  Optional additives or activators (dicyandiamide, melamine) furfural and fillers, e.g. wollastonite, CaSO4, flint, or cryolite.  The cloth backing may be dipsized with starch, presized with a phenolic or aminoplast resin composition. A size coat of adhesive may be applied after the embedding of the grains in the making coat.
Patent GB-900005-A (GB)
Title: Improvements in or relating to a method of making an abrasive article
IPC: B24D18/00
Filed: 1961-02-10
Abstract: 900,005. Laminates. CARBORUNDUM CO. Ltd. (Carborundum Co.). Feb. 10, 1961, No. 4993/61. Addition to 882,606. Class 140. [Also in Group XXIII] Laminated abrasive articles are made by calendering a thin sheet of non-woven textile fibrous material to compact it, coating one side with a thermoplastic elastomeric material, followed by a coating of abrasive grains and drying, impregnating the material with a heathardenable binder and partially curing, cutting and superposing blanks from the material, and consolidating the layers with heat and pressure. The fibrous material may be a blend of cotton and cellulose acetate fibres, the coating material an aqueous emulsion of casein and polychloroprene, and the impregnant a phenolaldehyde resin.
Patent GB-683145-A (GB)
Title: Improvements in pneumatic motors for actuating means for vehicle windscreen wipers
Inventor: HASTIE ADAM LEISK
IPC: B60S1/10
Filed: 1950-02-28
Abstract: 683,145. Pneumatic motors and valve gear. LUCAS. Ltd., J. Feb. 22, 1951 [Feb. 28, 1950], No. 5051/50. Classes 122(ii) and 122(iii) A pneumatic motor suitable for actuating a windscreen wiper comprises a valve plate a, a cylinder c formed on or secured at one end to one side of the valve plate. a piston f reciprocable in the cylinder and having a piston rod g extending through the valve plate, an air control valve carried by the valve plate on the opposite side of the cylinder and actuated in response to piston movements to supply air to the opposite ends of the cylinder alternately, a detachable enclosure d surrounding the cylinder and effecting communication between the valve plate and the end of the cylinder remote therefrom, and a detachable cover v enclosing the valve. A passage m in the valve plate is connected to a suction source by a pipe band is alternately placed in communication with one end of the cylinder c through a port n and a port o and a passage p whilst the other end of the cylinder is open to atmosphere, by a spring-loaded pivoted member i oscillated by a bell-crank lever j actuated alternately by a tappet r attached to the piston rod g and a second tappet u operated either by the piston f or by a tappet attached to the piston rod.
Patent GB-806386-A (GB)
Title: Method for securing an oil-bath stern tube in a ship, and stern tube and adjacent parts for the application of this method
IPC: B63H23/36
Filed: 1956-02-17
Abstract: 806,386. Stern tubes. PIETERSE, M. C. Feb. 17, 1956, No. 5057/56. Class 113. [Also in Group XXVI] To simplify the securing of a stern tube to or in a ship and to obviate the machinery or working of parts inside the ship, the invention comprises a method for securing an oil-bath stern tube in a ship in which the stern tube is provided at both ends with fastening members for locally supporting it and securing it in or to the ship and is finished together with said members with or without intervening bearing members outside the ship, after which the stern tube with said members is put in its place and secured by means of said members at both ends to corresponding parts of the ship. Fig. 1 shows the outward portion and Fig. 2 the inboard portion of a propeller shaft 1 which carries the propeller boss 2 and is housed in a tube 3 providing a space 4 supplied with oil by a pump 18 actuated by an eccentric ring 19. Oil seals 23 and 41 (see Group XXVI) are provided. A bush 5 integral with a rape guard 6 attachable by bolts 7 to a fastening ring 8 welded to the tube 3 is provided at the outboard end and at the inboard end a bush 12 formed with a pump chamber 13 is attached by bolts 20 to a ring 14 screwed on to the tube 3 at 15. The stern tube 3 along with the bushes 5 and 12 and the rings 8 and 14 is machined in the workshop, then bush 12 is removed and ring 14 is unscrewed, and the tube is pushed into the ship from the outboard side until the outer leg of the ring 8 fits along a short distance within the fitting surface 10 of the stern ring 9 which is equipped with ridges whereby it is welded in the ship when the proepller shaft has been aligned. The ring 14 is screwed on to the tube again and the bush 12 mounted. A hole somewhat larger than the ring 14 is provided in the plating 16 of the ship so as to allow of radial adjustment of the ring before welding same to the plating. In another embodiment in which the outboard part of the propeller shaft is supported in a shaft bracket, the stern tube with running bushes, a tube flange for the forward end, and a fairing having bracket parts welded thereto, are assembled in the workshop. When the tube is subsequently fitted in the ship, after alignment of the propeller shaft axis said bracket parts are secured to bracket parts rigidly secured to the ship, and the tube flange is fastened to the ship by bolts which allow some radial adjustment.
Patent GB-181428-A (GB)
Title: Improvements in terminal pieces for electric conductors
IPC: H01T13/04
Filed: 1921-02-15
Abstract: 181,428. Cornish, H. B. Feb. 15, 1921. No Patent granted (Sealing fee not paid). Binding-posts and terminals. - A terminal piece for electric fittings comprises a stem 1 with a diametric perforation 2 a notch 4 in one side at right-angles thereto, and a notch 3 across its top.
Patent GB-207141-A (GB)
Title: Improvements in or relating to looms
IPC: D03D45/20
Filed: 1923-02-22
Abstract: 207,141. Guieu, J. P. Nov. 15, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Shuttles, changing weft carriers in automatically; shuttles.-In automatic pirnchanging mechanism for plain looms, or for looms having multiple horizontal boxes at one or both sides, a compensating buffer-feeler 2, Fig. 4, controlled by a leaf spring 38 is carried by a spring-controlled feeler 32 pivoted at 33 on the batten and provided with a roller 34 actuated by a part 35, whereby the feeler 22 is caused to enter through the bottom of the shuttle box into engagement with the pirn in the shuttle. When the thread has been unwound from the metal pirn so that it no longer insulates the feeler from the pirn, an electric circuit is closed through a contact on the shuttle and a wiper, whereby a magnet is energized and a plunger core withdrawn from a position wherein it supports a rammer 8, Fig. 2. Thereupon, when allowed to move by a cam 9, a spring-controlled lever 12 moves a pirn from a loader into a waiting position 13', so that when the lay moves forward subsequently the pirn is transferred into the shuttle by means of a part 15 on the batten. The loader is reciprocated below the two compartments 21, 22 of the magazine by a bar 30 and cam 23, and is provided with two housings whereby a pirn of the correct colour is always positioned beneath the rammer. The applications of the pirn-transferring devices to plain looms with a single compartment magazine, also to a loom for weaving with four colours, and also to a loom having four boxes at each side are described. The weft threads from the pirns pass between a plush roll and a spring-controll ed lever, the roll being intermittently rotated so as to wind up slack threads.
Patent GB-433863-A (GB)
Title: Improvements in or relating to thermionic valve demodulating arrangements for amplitude modulated carrier wave oscillations
IPC: H04B1/30
Filed: 1934-02-16
Abstract: 433,863. Valve circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Telefunken Ges. fur Drahtlose Telegraphie; 12, Hallesches Ufer, Berlin) Feb. 16, 1934, No. 5233. [Class 40 (v)] In an amplitude modulated carrier wave detector in which, the signal together with oscillations of carrier frequency are applied to the grid of the detector, the detector valve has a pronouncedly curved grid voltageanode current characteristic e.g. is of the variable Á or exponential type and is so operated as regards bias and input voltage applied to the grid that, in the absence of the additional carrier source the total grid swing is over a limited region of the characteristic of substantially constant slope, and that with the additional source the grid swing is over a sufficient range to give detection by reason of the curvature of the valve characteristic. The additional carrier source may be a local oscillator controlled by the incoming signal or may consist of filtered and amplified carrier energy. The detector increases selectivity since appreciable output is obtained only by beats between the local source and the incoming signal.
Patent GB-727985-A (GB)
Title: Method of producing metallic strip in long lengths and the product of said method
IPC: B21C1/00
Filed: 1952-02-28
Abstract: 727,985. Making metal strip. BROWN BROS. & CO., Ltd., and MITCHELL, C. C. Nov. 24, 1952 [Feb. 28, 1952], No. 5250/52. Drawings to Specification. Class 83 (2). Metallic strip is produced from short lengths of strip having cross-sectional dimensions slightly in excess of the desired finished dimensions by upsetting each strip which will become an intermediate strip a short distance from each end to present a local enlargement separated from the adjacent end by an end lap portion, the two strips which will become end strips being each upset at one end only, overlapping the end lap portions of adjacent strips disposed in end-to-end series, welding the end lap portions together by full-penetration welding, the enlarged joints so formed including the local enlargements produced by upsetting, hot forging the enlarged joints substantially to the crosssectional dimensions of the original strip, annealing the joints, and cold drawing the entire strip through finishing dies.
Patent GB-193856-A (GB)
Title: Improvements in hoops for use with the tyres of vehicle wheels
IPC: B60C7/16
Filed: 1923-02-23
Abstract: 193,856. Cosmo, J. de. Feb. 23, 1922, [Convention date]. Spring wheels.-In wheel tyres of the type comprising a metal ring 2, and an annular cushion 1 formed with cells arranged in staggered order enclosed in an outer cover, as described in Specification 185,758, the ring 2 is provided with a supporting wood hoop. The ends of the ring are connected by plates 4 and 5 and rivets and screws as shown in Fig. 1. The cushion may be vulcanized onto the ring. In a modification the metal ring with wood filling may be replaced by a wood ring with or without metal reinforcement.
Patent GB-1534037-A (GB)
Title: Gas vents for electric storage cells
IPC: H01M2/12
Filed: 1976-02-11
Abstract: 1534037 Gas vent for battery GOULD Inc 11 Feb 1976 [12 Feb 1975] 05288/76 Heading H1B A gas vent for an electric storage cell comprises a body portion 15a for insertion into a vent opening of the cell, the body portion having an aperture 45a therein for the escape of gas from within the cell, a closure member 19a reeasably engaging the body portion, a porous body 24a between an upper end portion of the body portion 15a and closure member 19a, and means 50 for maintaining a gap between the closure member and the porous body sufficient to allow gases within the cell to escape through the porous body while retarding the entry of a flame into said gap. The body 15a may be of moulded plastics; body 24a may be polypropylene, polyethylene or a fluorocarbon polymer; closure 19a may be elongated and hold a plurality of bodies 15a; these are snapfitted into 19a by co-operating members 23a and 30a; where a plurality of bodies are used, members 50 may extend as far as walls 20a, as in Fig. 3 (not shown). The body 15a has a splash guard 36a above orifice 45a and a funnel 37a for returning electrolyte to the cell.
Patent GB-722118-A (GB)
Title: Improvements in or relating to the production of aluminium
Filed: 1952-02-28
Abstract: In a method of producing aluminium by reacting a gaseous aluminium halide, such as the chloride, with an aluminium alloy, the halide is introduced into the metallic bath through porous refractory material which is heated to a temperature such that the halide will not condense in it, volatilized sub-halide of aluminium is formed and is decomposed at a lower temperature producing aluminium.  The porous refractory material may be of alumina.
Patent GB-539809-A (GB)
Title: Improvements in and in the manufacture of sprocket wheels
IPC: B62D55/12
Filed: 1940-03-23
Abstract: 539,809. Sprocket wheels. ALLEY, S. E., and ALLEY, S. E. March 23. 1940, No. 5354. [Class 80 (i)] [Also in Group XXII] A sprocket wheel, e.g. for endless-tracks or track-laying vehicles, is made by shaping a number of steel plates 13 to the desired peripheral tooth form and then securing by welding or other fusion method to a body or disc 10 thinner than the width of the plates 13 and serrated at 12. Each plate 13 may comprise a part or the whole of one or more teeth. The tip 14 of each tooth may be clear of the part 19 of the edge of the disc and may be narrower than the base 15 and the sides 16 may lie at an angle of 60 degrees to each other. If desired the disc 10 may be replaced by two or more similar discs 21, Fig. 5, which may be perforated as at 23, or by a spoked structure. The plates 13 are hardened after shaping and may be welded at 18 after welding to the disc.
Patent GB-939571-A (GB)
Title: Process of preparing-organo-beryllium compounds
IPC: C07F3/00
Filed: 1962-02-12
Abstract: Alkyl beryllium halides are prepared by reacting a beryllium dihalide with excess of a trialkyl aluminium compound, the resulting aluminium compounds being separated and the alkyl beryllium halide residue is purified by extraction.  The dialkyl aluminium halide may be separated by vacuum distillation or by extraction at room temperature with a hydrocarbon solvent, preferably a low boiling aliphatic hydrocarbon such as heptane. Unreacted beryllium dihalide may be extracted from the residue with boiling hydrocarbon solvents, preferably aromatic such as toluene followed by low cooling to precipitate the alkyl beryllium halide.  By reacting the alkyl beryllium halide with a hydride of a metal more electropositive than beryllium and then adding an olefin under pressure alkyl beryllium compounds may be obtained.
Patent GB-843227-A (GB)
Title: Improvements in or relating to delay fuse elements for delay electric detonators anddelay electric detonators containing them
Inventor: GURTON OWEN ALLEN
IPC: F42B3/16
Filed: 1958-02-19
Abstract: 843,227. Electric detonators and delay elements therefor. IMPERIAL CHEMICAL INDUSTRIES Ltd. Feb. 2, 1959 [Feb. 19, 1958], No. 5368/58. Classes 9(1) and 9(2) A delay element for electric detonator comprises a metal tube sheathing a delay  fuze composition, the charge being subdivided into at least three separated columns of non-circular right section arranged parallel to the axis of the tube in positions intermediate the axis and the peripheral surface of the element. The delay composition may be a 70 : 30 red lead - silicon mixture, a 50/50 lead peroxide - silicon mixture or a 45.5; 45.5 : 9 lead peroxide-silicontitanium dioxide mixture by weight. To make the element, a lead tube 1 is filled with the composition 2 and drawn through a series of dies to reduce the diameter. A number of the tubes 1, say five, is then placed in a lead tube 7, Fig. 5, regularly spaced around a lead rod 3 pentagonal in cross-section. The assembly is then drawn to reduce the diameter and the metal flows to form a matrix in which the cores 2 are embedded, the cores being distorted from their circular section during the drawing operation. The end portions of the assembly are removed and the rest cut into lengths corresponding to the desired delay times before insertion into the detonator casing above the normal primary and secondary charges. The bridge-wire of the electric fuzehead may be coated with a composition comprising lead mononitro-resorcinate and potassium chlorate covered with a composition consisting of cerium-magnesium alloy, potassium chlorate, aluminium and charcoal. The plug carrying the lead wires to the electrodes may be made of a polymerised chloroprene composition. An axial column of the delay composition may also be provided in the element.
Patent GB-180037-A (GB)
Title: Improvements in flush valves for water closets
IPC: E03D1/30
Filed: 1921-02-16
Abstract: 180,037. Harroun, W. L. Feb. 16, 1921. Cistern discharge valve.- A discharge-valve of a flushing- cistern is fitted with a stem 10 on the lower end of which is fitted adjustably a disc 9. During discharge the falling water strikes the disc, which guides the valve to correct seating on the flare end of the flush pipe. The top of the valve is held between a collar 10<1> and sleeve 11 on the rod 10.
Patent GB-800114-A (GB)
Title: Method of preparing derivatives from usnic acid
Inventor: VIRTANEN OSKAR ERIK
IPC: C07D407/04
Filed: 1956-02-21
Abstract: The invention comprises addition products of usnic acid obtained by reacting usnic acid dissolved or suspended in an inert organic solvent with a quaternary ammonium base or a salt thereof, or with a quaternary ammonium base or a salt thereof and an amino-sugar.  The usnic acid and the quaternary ammonium base or a salt thereof, or the quaternary ammonium b base or a salt thereof and an amino-sugar.  The usnic acid and the quaternary ammonium base or a salt thereof, or the quaternary ammonium base or a salt thereof and the amino-sugar may be reacted in equimolecular quantities.  Suitable quaternary ammonium salts are benzyldimethyl - (2 - [2 - (p - 1,1,3,3 - tetramethyl - butylphenoxy) - ethoxy] - ethyl) - ammonium chloride and (2 - [2 - (p - di - isobutylphenoxy) - ethoxy] - ethyl) - dimethylbenzyl - ammonium bromide.  Suitable inert solvents are acetone, dioxane, ethanol, carbon tetrachloride, chloroform, methanol, a propyleneglycol, toluene or trichloroethylene.  In the example an addition compound is prepared by reacting usnic acid, benzyldimethyl - (2 - [2 - (p - 1,1,3,3 - tetramethyl - butylphenoxy) - ethoxy] - ethyl - ammonium chloride and N-methyl-l-glucosamine.
Patent GB-940980-A (GB)
Title: Improvements in or relating to circuit arrangements embodying transistors
Inventor: TOWELL ROGER PERCIVAL
IPC: H03F3/50
Filed: 1959-02-17
Abstract: 940,980. Transistor amplifying circuits. ELECTRIC & MUSICAL INDUSTRIES Ltd. Feb. 16, 1960 [Feb. 17, 1959], No. 5400/59. Heading H3T. In order to reduce the shunting effect of the D.C. feedback stabilizing path on the input impedance of an emitter follower an intermediate point of the path is decoupled to a point in the circuit where there occur voltage variations corresponding to and of the same polarity as the voltage applied to the base of the emitter follower. D.C. feedback is over resistors R 4 , R 5  connected between the collector and base of transistor T, Fig. 3, or between the collector of transistor T2, connected in cascade with transistor T 1 , Fig. 4, and the base of the latter. The junction of resistors R 4 , R 5  is decoupled by capacitor C 2  to the emitter of transistor T or the emitter of T 2 ; in the latter case the input resistance of the transistor T 2  stage is employed as the emitter load of the transistor T 1  stage.