baber/WOPTO huggingface dataset:
Patent GB-654344-A (GB)
Title: Method of regulating gas turbine jet-propulsion plants, and means therefor
IPC: F02K1/30
Filed: 1948-11-18
Abstract: 654,344. Jet propulsion plant. COMPAGNIE ELECTROMECANIQUE. Nov. 18, 1948 No. 30035. Convention date, Nov. 21, 1947. [Class 110(iii)] [Also in Group XXXIII] A gas turbine driven jet propulsion plant having a convergent-divergent propulsion nozzle is controlled by admission of air into the nozzle at a point immediately downstream of the throat 14. Admission is controlled by the annular damper 18, the operation of the rod 24 causing the cam 27 to press open the ends of the split damper against the action of the springs 20. Further apertures may be provided in the divergent section of the nozzle to suck in the boundary layer at the end of the fairing.
Patent GB-798533-A (GB)
Title: Improvements in and relating to retractable ball-point pens
Inventor: SAMS HERBERT WILLIAM
IPC: B43K24/08
Filed: 1956-10-02
Abstract: 798,533. Writing instruments. SCRIPTO, Inc. Oct. 2, 1956, No. 30043/56. Class 146(3) A retractable ball-point pen has a plunger 20 carrying a writing unit 16 slidably disposed in the rear end of a barrel 12, a pocket clip 30 fixed outside the barrel at 32 having a flexible arm portion 34 extending rearwardly and biased laterally (to the right as seen in the Figure) for releasably engaging the plunger 20 when depressed, and a spring 26 biasing the plunger and writing unit rearwardly. The portion 34 of the pocket clip is formed to overlie the rear end of the barrel 12 and has an aperture 36 to allow rearward projection of the plunger 20 therethrough. The plunger 20 is shouldered at 38 and formed beyond this shoulder with a rounded tip extension of reduced diameter as at 40. On depression of the plunger 20 to project the writing unit 16 the lateral bias of the portion 34 causes it to engage on the shoulder 38 and hold the plunger and writing unit in projected position. The plunger 20 is released by pressing the portion 34 laterally (to the left as seen in the Figure) so that the aperture 36 is aligned with the longitudinal axis of the plunger which carries the writing unit back into retracted position under the influence of the spring 26.
Patent GB-462560-A (GB)
Title: Improvements in table knives
IPC: B26B3/02
Filed: 1935-10-31
Abstract: 462,560. Table knives. COULSON, H. E. Oct. 31, 1935, No. 30086. [Class 30] An integral shank 2 is interposed between the blade 1 and the bolster 3, and the blade is curved as shown with the tip displaced backwards out of the axis of the knife.
Patent GB-681129-A (GB)
Title: Method of producing heavy metal carbides
IPC: C01B31/30
Filed: 1950-12-08
Abstract: Heavy metal carbides are produced by heating the metal, or mixtures, or compounds thereof, in the presence of a fusible carbohydrate or mixture of carbohydrates, e.g. mono-or polysaccharides, to a temperature at which ebullition has occurred, and subsequently heating the mass to carburizing temperature.  The heavy metals may be present as alloys, oxides, or compounds converted into oxides on heating, e.g. hydroxides.  A mixture of powdered tungsten and grape sugar is heated to about 400 DEG C in a container large enough to prevent frothing over until gas evolution ceases.  The resulting mass is pulverized, compacted, and charged to a graphite container and carburized by heating at 900-1200 DEG C.
Patent GB-340998-A (GB)
Title: Improvements in head supports for shampooing
IPC: A45D19/08
Filed: 1929-10-07
Abstract: 340,998. Hair &c. washing appliances. BARIL, E., 551, Regina Avenue, Verdun, Quebec, Canada. Oct. 7, 1929, No. 30289. [Class 131.] A device for supporting the head when shampooing comprises a rest 4 shaped to the forehead and mounted on an arm or arms 5 the ends 7 of which are shaped to engage the edge of the wash basin. The ends 7 are covered by rubber tubing 9.
Patent GB-299022-A (GB)
Title: A drawing or stretching process in the manufacture of cuprammonium artificial threads, filaments and yarns
IPC: D01F2/04
Filed: 1928-10-19
Abstract: 299,022. Lonza-Werke Elektrochemische Fabriken Ges. Oct. 19. 1927, [Convention date]. Ammoniacal-copper cellulose solutions, processes for making filaments from.-Artificial threads produced by the cuprammonia process are reduced in diameter by subjection to a drawing process while in the plastic condition obtained by washing for a short time the threads as coagulated in a strongly alkaline bath, that is, while still containing copper, with water or a dilute non-acid solution of an alkaline-earth salt such as magnesium sulphate, calcium chloride, or calcium nitrate. The obtaining of the desired degree of plasticity occurs more rapidly if warm aqueous liquid is used for the washing of the threads; and it is preferred to carry out the washing while the threads are in a loose condition. Drawing may be effected by the use of an expanding bobbin on which the threads were initially wound or to which they have been transferred; or the threads may be collected on expanding reels, or they may be collected in centrifugal boxes, and converted into hanks which are stretched on hank-stretching frames, the latter being preferably rotated during the washing and drawing operations; or the threads may be stretched during the winding from a bobbin or reel to a second bobbin or reel rotating at a higher peripheral speed. After drawing, the thread may be fixed by passage through an acid bath and the fixed yarn may before drying be subjected to a further drawing.
Patent GB-372693-A (GB)
Title: Improvements in rotary web undersurface printing machines
IPC: B41F13/00
Filed: 1931-11-02
Abstract: 372,693. Printing- machines. BARKER, R. W., 56, Ludgate Hill, London. -(American Bank Note Co.; 70, Broad 'Street, Manhattan, New York, U.S.A.) Nov. 2, 1931, No. 30305. [Class 100 (ii).] Rotary intaglio machines.-A rotary printing- machine of the kind in which an impression cylinder or D-roll 17 coacts with a plate cylinder 10 fitted with three spaced intaglio plates 11, 12, 13, is constructed so that the gears 20, 21 which connect the cylinders 10, 17 permit slight variation in the angular speed of the impression cylinder 17 during the printing operation for which period the cylinder 17 is driven frictionally, and means are provided for bringing the cylinder 17 into a definite relation with the cylinder 10 upon the completion of the making of each impression and also immediately prior to the initiation of the making of the succeeding impression. The gears 20, 21 may be formed as loosely fitting gear wheels, but preferably the cylinder 10 is fitted with three floating circular racks which are normally kept in a definite position by springs but are capable of yielding slightly in either direction. The means for registering the position of the cylinders at the beginning and end of the printing operations comprises a series of socket plates 31 .. 36 which are secured with capacity for angular adjustment to a ring 30 connected to the driving-gear 19 of the cylinder 10. Each socket plate is fitted with a socket 37, and the sockets act on studs 26, 27 which can be angularly adjustable relatively to a wheel 23 on the shaft of the cylinder 17. The studs are located on opposite sides of the recess 18 of the cylinder 17, and are at the same radial distance from its axis as are the teeth 21. The studs are preferably formed with antifriction sleeves, and the sockets 27 are outwardly flared to permit the free engagement and disengagement of the studs and to limit the corrective effect of the socket and stud to a momentary action.
Patent GB-735636-A (GB)
Title: Improvements in or relating to rotary valve mechanisms for engines or machines having pistons reciprocating in cylinders
IPC: F01L7/08
Filed: 1951-12-28
Abstract: 735,636. Engine distributing valves. TACCONI, G. Dec. 28, 1951, No. 30348/51. Class 122 (2). [Also in Groups XXVII and XXVIII] A rotary conical valve 12, Fig. 1, axially slidable on its actuating shaft 6, is urged towards its seat by a spring 14 and driven by a collar 8 splined on the shaft 6 and carrying rollers 11 engaging V-shaped notches in the valve, whereby the valve is moved off its seat slightly if it tends to seize, and the valve is balanced against the axial and radial thrusts produced on it by the pressure in the cylinder by means of a fluid pressure which varies with the pressure in the cylinder. In Fig. 1 the cylinder pressure is transmitted through a passage 27 to an annular chamber 26 to urge the valve towards its seat and balance the axial thrust thereon and to a chamber 28 to balance the valve against the radial thrust due to cylinder pressure. Lubricating oil supplied under pressure to a chamber 31 flows through passages 30, 32, 33 in the valve shaft 6 to spiral grooves 34, 35 and thence to passages 36, 37 to the valve surfaces. In a modification, Fig. 5, the lubricating oil supply pipe 63 is connected during periods of low pressure in the cylinder 44 by passages 65, 66 in the valve actuating shaft to an annular chamber 53, which chamber is connected during periods of high cylinder pressure by passages 65, 61, 60 to a spring-loaded piston 70 open to cylinder pressure. The high pressure in the cylinder 44 is then transmitted by the piston 70 and the lubricating oil in passages 60, 61 and 66 to the chamber 53 to urge the valve towards its seat and balance the axial thrust. The radial thrust is balanced by transmitting the cylinder pressure through a passage 75 in the valve to a chamber 74. The piston 70 may be replaced by a diaphragm.
Patent GB-210856-A (GB)
Title: Improvements in or relating to vehicles and the interior lighting thereof
IPC: B60Q3/02
Filed: 1922-11-07
Abstract: 210,856. Cammell, Laird, & Co., Ltd., and Bailey, A. S. Nov. 7, 1922. Lighting, systems of; lamps forming a line of light.-Vehicles, such as railway and tramway cars, are illuminated by a series of lamps f disposed in members a of box section having glazed lower sides and running longitudinally and form. ing part of the roof of the car. As shown, the members a are disposed between the two linings g, h of the roof, one at each side of the clerestory portion. The glazed portions d may be opalescent and may be fixed or hingedly connected to the members a and the inner sides of the latter may be connected by strengthening-webs j to the upper sides so as to form a satisfactory support for strap-hanger rails m.
Patent GB-629751-A (GB)
Title: Improvements in or relating to boot and shoe-trees
IPC: A43D3/04
Filed: 1947-11-17
Abstract: 629,751. Shoe trees. LINSELL, C. W. Nov. 17, 1947, No. 30441. [Class 17 (iii)] A tree or stretcher which may be used in both right and left shoes comprises an inflatable bag or cushion 14 for the toe part 2 of a shoe &c. to the rear wall of which is secured an extensible spring-pressed arm 4 in telescoping sections carrying a pad 7 which is engaged with the heel end of the shoe. A valve stem 15 through which air may be supplied to or released from the cushion 14 may be extended at 17 to the toe of the cushion to facilitate introduction of the tree into a shoe, a passage 19 in the extension 17 communicating with the cushion. In a modification, the extension 17 may be omitted.
Patent GB-192522-A (GB)
Title: Improvements in shock absorbers for motor and other vehicles
IPC: F16F7/06
Filed: 1921-11-15
Abstract: 192,522. Ward, A. S., and Lane, J. G. Nov. 15, 1921. Vibration-dampers.-A shock - absorber for vehicles and of the kind in which initial deflection of a suspension spring is unresisted, and its restoration is retarded by a friction - device rendered operative by a one-way clutch, comprises an outer casing a, brake bands b, c pivoted at b<1> to the casing and supporting within them a drum d carrying pawls f in recesses g, and a toothed wheel e within the drum and co-operating with the pawls f. The wheel e is secured to a shaft i having a squared part on which is mounted an arm h pivoted to an arm secured to the main suspension spring or axle of the vehicle, so that when the spring is deflected the arm h turns the wheel e clockwise, the pawls f slipping over its teeth. On the rebound, the pawls f engage the wheel e and the drum d is turned against the friction on its surface of the bands b, c, which may be provided with a spring-controlled adjustment k for taking up wear.
Patent GB-464872-A (GB)
Title: Spare lamp-bulb carrier for cycles
IPC: B62J11/00
Filed: 1935-11-05
Abstract: 464,872. Attaching lamp - bulbs to cycles. SUMNER, E. Nov. 5, 1935, No. 30515. [Class 136 (i)] A device for carrying a spare lamp-bulb on a cycle comprises at one side a spring clip A to engage a seatpillar, or frame tube of a cycle, and at the other side a smaller spring clip C to engage the metal part of the bulb, the glass part of which is protected by a surrounding tube B attached to the device above the smaller clip.
Patent GB-848427-A (GB)
Title: Improvements in or relating to line source loudspeaker arrays
Inventor: BRITTAIN FRANCIS HUGH
IPC: H04R1/28
Filed: 1957-09-30
Abstract: 848,427. Loud-speakers. GENERAL ELECTRIC CO. Ltd. Sept. 30,1958 [Sept. 30, 1957], No. 30546/57. Class 40 (4). [Also in Group XXXVIII] To overcome resonance in loud-speaker cabinets of enclosed or bass-reflex type the end walls are made non-parallel. As described in Specification 847,954, the lateral walls 2 are made from a single piece of sheet metal. A number of loud-speakers 8 are mounted in line in front of individual chambers formed by internal partitions 4 oppositely inclined. The chambers have resonant tubes 10 leading to ports 9. The chambers are divided by soundabsorbing sheets 12.
Patent GB-294560-A (GB)
Title: Improvements relating to boxes for toys
IPC: B65D81/36
Filed: 1927-11-14
Abstract: 294,560. Lasse, M., Lasse, K. W. F., and Reschke, W., (trading as Lasse, F.). July 26, 1927, [Convention date]. Toys made in box form; furniture.-Relates to toy boxes of the kind comprising a body a, lid f, and separate leg members d that support the inverted body a to form a table, and consists in forming the legs of double angle-strips secured together for about half their length by rivets e and adapted to receive between them the corners of the inverted body or lid of the box. The lid f may be marked to represent a table cloth and be applied to the upper part of the structure for strengthening purposes. The toy is formed of cardboard, tin-plate, wood or other material.
Patent GB-409384-A (GB)
Title: Improvements relating to fluid pressure braking apparatus
IPC: B60T15/30
Filed: 1932-10-31
Abstract: 409,384. Fluid - pressure brakes. WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London.-(Assignees of Compagnie des Freins Westinghouse ; 23, Rue d'Athenes, Paris.) Oct. 31, 1932, No. 30669. Convention date, Dec. 23, 1931. [Class 103 (i).] In a graduated release valve controlled by control chamber, auxiliary reservoir or train pipe, and brake cylinder pressure, the pressure in the control chamber is automatically adjusted to a value dependent on the rise in brake cylinder pressure during application of the brakes in order that uniform release will be obtained throughout the train. Final release of fluid from the brake cylinder is effected by reducing control chamber pressure. The control chamber 10 and control reservoir 13 of the graduated release valve 4 are fed by the auxiliary reservoir 2 by means of a valve 25, and passages 6, 26, 12, 11. Valve 25 is controlled by diaphragms 18, 19 joined by stem 27. Chamber 22 below diaphragm 19 is connected by passage 23 to the brake cylinder 3. On brake application the pressure in chamber 22 rises and the auxiliary reservoir pressure between the diaphragms 18, 19 falls and when a certain ratio between these pressures is attained the diaphragms rise and allow the valve 25 to close ; preventing further variation in the control chamber pressure. The auxiliary reservoir is charged past a valve 7 in the graduated release valve 4. The stem 27 operates a slide valve 28 which when the diaphragms have risen on brake application connects, by cavity 29, a reservoir 32 to an atmospheric outlet 30. Towards the end of the release operation when brake cylinder pressure has fallen in the chamber 22, the diaphragms fall and cavity 29 connects the control chamber 10 by passage 11 to the reservoir 32 which is now at atmospheric pressure and the pressure in chamber 10 falls and the release valve 16 is fully opened to effect the final release of fluid from the brake cylinder. In a modification the chamber 22 may be connected to the annular space 35 above the piston of the regulating valve 34.
Patent GB-849559-A (GB)
Title: Improvements in or relating to earth working machines
IPC: E02F3/345
Filed: 1956-10-08
Abstract: 849,559. Earth - working equipment. LUDOWICI, J. W. Oct. 8,1956 [Oct. 10, 1955], No. 30683/56. Class 68(1). Earth or the like is scraped up by a grader blade 3 mounted between and at the ends of a pair of parallel arms 2 pivotally mounted on a wheeled chassis 1 for limited vertical movement by actuating means such as jacks 4. The earth passes up and over the grader blade 3 to a scoop 5 mounted for vertical swinging on a parallelogram linkage 7, 8 supported on the chassis 1. To allow of side discharging of the scoop the linkage 7, 8 may be mounted on a plate supported on the chassis 1 for rotation about a substantially horizontal longitudinal axis.
Patent GB-299776-A (GB)
Title: An improved rotary motor
IPC: F01C1/067
Filed: 1928-10-23
Abstract: 299,776. Kolko, A. Oct. 31, 1927, [Convention date]. Geared-vane type.-Piston a and roller 14a are carried by one disc, piston b and roller 14b by a second disc and a floating roller 16 guided by a frame 17 lies between the rollers 14<a>, 14b and a cam 29 on the engine shaft. When the pistons are forced apart the rollers 14<a>, 14<b> approach and force the roller 16 radially inwards on to the cam and the latter together with the engine shaft is caused to rotate. The pistons a, bare diametrally opposed to another pair and there may be other sets of pistons. There are two sparking plugs, inlets and exhausts.. The pistons are rectangular in crosssection and their inner and outer surfaces are packed by cork impregnated with isinglass or other resilient material placed in grooves.
Patent GB-1459377-A (GB)
Title: Flame-resistant polycarbonates
IPC: C08K3/00
Filed: 1975-07-23
Abstract: 1459377 Flame retardant polycarbonates BAYER AG 23 July 1975 [24 July 1974] 30803/75 Heading C3R A flame resistant moulding composition comprises an aromatic polycarbonate and 0À1 to 15% by weight of sulphur, based on the weight of polycarbonate and sulphur. The composition may also contain up to 30% by weight of glass fibres, based on the total weight of the composition. The polycarbonates used in the examples are derived from bisphenol A and the copolycarbonate thereof with tetrabromobisphenol A.
Patent GB-159491-A (GB)
Title: Resilient wheel
IPC: B60C7/14
Filed: 1920-11-01
Abstract: 159,491. Mendenhall, C. A. Feb. 24, 1920, [Convention date]. Metallic-spring bodies and cores. - In spring wheels, the tread is composed of elastic blocks 19 carried on the ends of springs 16 and in mutual contact under slight compression. The blocks are shaped as shown in Figs. 4 and 5 and are moulded on the springs 16, which are of substantially U- shape with straight parallel sides 17 and offset ends 15. The periphery of the central part of the wheel consists of two side rings 10 secured to and spaced by blocks 9, and provided on their outer faces with equally spaced ribs 11 and holes 14. The inner ends of the springs are inserted in the holes 14 and secured by flat rings 21 which are screwed at intervals to the ribs 11. The front edge 12 of the ribs is straight and the rear edge 13 curved as shown. In normal working, the springs tend to lie against the straight edges 12, but under abnormal stress are brought into contact with the curved edges, which serve to support them. The spokes 2 are tenoned and provided with metal caps 4 and are secured and set up by nipples 5 screwing into the blocks 9 and having a smooth interior bore.
Patent GB-159986-A (GB)
Title: Improvements in or relating to apparatus for dumping concrete under water
IPC: E02D15/06
Filed: 1919-12-09
Abstract: 159,986. Gr³nberg, A. W. Dec. 9, 1919. Skips. - A skip for dumping concrete under water comprises a tubular container A having smooth interior walls which is closed at the top by a removable perforated lid E and at the bottom by a flexible tubular conduit B and cord D. The container has two handles G, G<1>, one of which is smaller than the other so that both may be in vertical position at the same time.
Patent GB-661952-A (GB)
Title: Improvements in and relating to coating compositions
Inventor: STURM ROBERT HEINRICH
IPC: C08G8/04
Filed: 1946-10-17
Abstract: A coating composition for coating and phosphatizing metal surfaces comprises a thermosetting resin containing in solution therewith a metal phosphate and phosphoric acid, the metal phosphate being initially alkaline and added during the condensation of the resin when it acts as a catalyst and is converted to an acid phosphate which on application to the metal surface forms an insoluble phosphate layer thereon and also acts with the phosphoric acid as a catalyst in the hardening of the resin by stoving.  In preparing the resins (1) phenols or cresols 100 parts, are condensed with 55-100 parts 40 per cent formaldehyde, 8-10 parts ammonia, and 4.5 parts sodium hexametaphosphate or tetrasodium phosphate; the condensation is arrested by addition of phosphoric acid, the resin is dehydrated, dissolved in acetone or ketone, and mixed with 20 per cent hydrolized polyvinyl acetate or 30 per cent emulsified non-drying oil alkyd resin is applied to the metal surface which is then stoved; (4) the resin condensate is obtained from a mixture comprising 30 parts urea, 114 parts 40 per cent formaldehyde, 1.5 parts ammonia solution, 2.7 parts Na hexametaphosphate, and 1.5 parts ethylene glycol.  Melamine resins may also be used.  The emulsified alkyd resin comprises 50 parts non-drying oil alkyd resin in 50 per cent butyl alcohol, 25 parts 5 per cent solution of sodium carboxy methyl cellulose and 25 parts butyl alcohol. Sodium dihydrogen phosphate and manganous hydrogen phosphate may be added with the phosphoric acid.  The Provisional Specification states that the coating composition described in Specification 654,351 may be used as a final coating.ALSO:A coating composition for coating and phosphatizing metal surfaces comprises a thermosetting resin (see Group IV(a)) containing in solution therewith a metal phosphate and phosphoric acid, the metal phosphate being initially alkaline and added during the condensation of the resin when it acts catalytically and is converted into an acid phosphate.  Phosphates of zinc, manganese, sodium and cadmium are referred to.