baber/WOPTO huggingface dataset:
Patent GB-564196-A (GB)
Title: Plasticizing polyvinyl chloride
IPC: C08K5/12
Filed: 1942-12-22
Abstract: Polyvinyl chloride and copolymers of vinyl chloride and aliphatic acid vinyl esters, e.g. vinyl acetate are plasticized with a mixed ester of the formula R(XY)n, wherein R is the residue of an alkylene glycol containing 2 to 4 carbon atoms, of polyalkylene glycols containing 4 to 8 carbon atoms, of glycerol or of pentaerythritol, X is the residue of phthalic acid or of 3,6-endomethylene-D -4,5-tetrahydrophthalic acid, Y is an alkyl group containing not more than 8 carbon atoms and n is 2, 3 or 4. Esters specified are dibutyl ethylene and dibutyl butylene glycol and dibutyl diethylene and dibutyl dibutylene glycol diphthalates, tributyl glycerol triphthalate, tetrabutyl pentaerythritol tetraphthalate and the corresponding 3,6-endomethylene-D -4,5-tetrahydrophthalates.  The polyvinyl chloride and plasticizer are mixed at elevated temperatures in an open roll mill or an internal mixer.  Fillers, pigments and dyes and polyvinyl esters of aliphatic acids may be added.  The products may be used for waterproofing fabrics and in making calendered, extruded and moulded articles.  The preparation of the mixed esters is exemplified by the manufacture of tributyl glycerol triphthalate in which phthalic anhydride (3 mols.) and glycerine (1 mol.) are reacted, the temperature being held at 130 DEG  C. by cooling.  Butanol (8 mols.) sulphuric acid and toluene or benzene are added.  The water formed is removed by azeotropic distillation, excess butanol is distilled off and the residue is washed with water, dilute alkali and again with water.  It may be decolourized with permanganate and absorbent carbon.
Patent GB-661632-A (GB)
Title: Improvements relating to leaf springs and to suspension systems incorporating the same
IPC: B60G11/113
Filed: 1949-07-09
Abstract: 661,632. Leaf springs; axle connections. GENERAL MOTOR CORPORATION. July 9, 1949 [July 29, 1948], No. 18209/49. Classes 108(ii) and 108(iii) A suspension system comprises a single spring leaf having a dent or depression on one side on its neutral axis, a pair of U- shaped fittings embracing the spring leaf and having a projection in keyed relation to the dent and clamp plates in interlocking engagement with the fittings. In the arrangement shown, a single-leaf spring 10 pivotally connected at each end to a vehicle chassis 11, is clamped intermediate its ends to an axle 14, by means of a pair of plates 18, 18 and U-bolts 15. The plates 18 are substantially U-shape in transverse section and are provided at opposite ends with ears 19 which retain in position a pressure plate 16 and an axle chair 17. The ears may fit into grooves formed in the ends of the plate 16 and the chair 17. Both plates 18 have a central transverse slot 20 to receive protruberances on a pair of internested U-shaped clips 21, 21. A pair of liners 22, 22. which may be formed integral with each plate 18, extends from each end thereof and forms abutments for the clips 21. Each clip 21 is formed with a rectangular slot 23 at one end a tongue 24 at the other end which, when the clips are applied to opposite edges of the spring 10 in reverse relation to one another, is bent back on itself within the corresponding slot 23 and is later flattened into the slot by the clamping pressure of the plates 18. Each clip is also formed with a spherically shaped indent 25 which engages a ccrrespondingly shaped dent on the edge of the spring. The spring is completely encased in a rubber or the like covering which is moulded or otherwise applied after the clips 21 have been fitted. Separators 27 of sheet packing material are interposed between the rubber and the plates 18 which are then clamped into abutment with each other to squeeze the rubber covering into the exterior dents of the clips 21. The rubber covering may be replaced by rubber pads which do not completely enclose the spring. Specification 651, 230 is referred to.
Patent GB-1223182-A (GB)
Title: Heated or cooled ceiling or wall structures
IPC: F24D3/12
Filed: 1968-04-18
Abstract: 1,223,182. Suspended ceilings. HUNTER DOUGLAS. 18 April, 1968 [19 April, 1967], No. 18315/68. Heading E1W. [Also in Division F4] A pipe 7 for the conveyance of a heating or cooling fluid is located against one or both sides of one or more channel section panels 3 which form the visible surface of a wall or ceiling. The pipe is located by clips 8 which engage openings 9 in flanges of inverted channel section support members 1. Alternatively the clips may be integral with the support members. The channel section panels 3 are held in position by being clipped over the pipes 7 and over lips 6 punched out of the flanges on the supports 1.
Patent GB-755158-A (GB)
Title: Improvements relating to apparatus for melting organic polycondensates
IPC: B29B13/02
Filed: 1954-06-22
Abstract: <PICT:0755158/IV(a)/1> <PICT:0755158/IV(a)/2> <PICT:0755158/IV(a)/3> <PICT:0755158/IV(a)/4> <PICT:0755158/IV(a)/5> <PICT:0755158/IV(a)/6> <PICT:0755158/IV(a)/7> In the melt-spinning of organic polycondensates, the material is melted on a grid having heating surfaces which project into the melting chamber and whose height is a multiple of its mean width. This may be effected by adding fins to existing heating elements so that they project into the melting chamber and increase the melting area, e.g. as shown in Fig. 1, in which a tubular heating element 2 through which heating fluid circulates has fins 3 projecting into the melting chamber 1. Examples include single or double spiral heating elements of oval cross-section, Fig. 7, parallel elements of trapezoidal, oval or T-shaped cross-section, Figs. 3, 13, 15, and a cylindrical heating element with funnel-shaped apertures through which the molten material passes as shown in cross-section in Fig. 11 and plan in Fig. 12.
Patent GB-638031-A (GB)
Title: Improvements in or relating to the manufacture of catalysts
IPC: C01B17/78
Filed: 1947-07-11
Abstract: A catalyst of high mechanical strength and porosity for use in the oxidation of sulphur dioxide to sulphur trioxide is prepared by grinding a mixture of a silica gel impregnated with a vanadium compound which has been subjected to baking in the presence of acid, with finely-divided sulphur, adding water and kneading, shaping, as by moulding, pelleting or extrusion into a suitable form, drying and removing the sulphur by ignition or sublimation at high temperature. The vanadium-containing silica gel may be made by mixing silica gel with a solution of a vanadium compound, e.g. potassium vanadate, acidifying with sulphuric acid, kneading and baking.  Alternatively, the vanadium-containing silica gel may comprise the spent product of a previous catalytic operation. Specification 439,237 is referred to.
Patent GB-629422-A (GB)
Title: Improvements in mine props
IPC: E21D15/40
Filed: 1947-07-11
Abstract: 629,422. Mine props. BAILY, E. July 11, 1947, Nos. 18515 and 18516. Convention dates, Oct. 25, 1946, and Jan. 7, 1947. Addition to 616,940. [Class 20(ii)] The mine prop of the parent Specification is modified in that there are inserted between the shoe F. and the bottom of the notch provided in the thrust member D an ;assembling wedge E, having an angle which is sufficiently small, i.e. about 12 degrees, to permit easy driving in, and a complementary wedge E 2  inserted between the wedge E 1  and the bottom of the notch, the wedge E 2  having an angle such that the whole makes an angle 22 degrees. A vertically disposed key wedge T fits in notches N in the thrust member D and in a notch G in the wedge E 2 . Removal of the key allows the wedges E 1  E 2  to be withdrawn without difficulty. To enable the stirrups C to be detachably secured to the lower part B of the prop, they are provided with flanges 1 which can be bolted to a collar 3 on the part B. The head A of the prop may be in two parts 8, 10, the part 8 being screwed onto a screw-threaded portion 7 of the prop, whilst the part 10, which may be interchangeable with other parts 10 of different shape is connected to the part 8 by means of a bolt 9.
Patent GB-1583158-A (GB)
Title: Fluid pressure operated thermostat
IPC: G05D23/12
Filed: 1977-05-03
Abstract: The device has a temperature sensor (9), an actuator (10) and an overtemperature protection (1, 4). The temperature sensor (9) and the actuator (10) are filled with an expansion fluid (3c) and are connected to one another operationally in a hydraulic fashion. The overtemperature protection (1, 4) consists of a pressure vessel (4) with a flexible partition (1) which is arranged between the expansion fluid (3c) and a pressurised gas (5). The partition (1) inserted in the pressure vessel (4) consists of a diaphragm, which is bent under stress and consists of a gas-tight plastic film. It is provided with a protrusion (1a), having an undulating profile, which can be pressed into the gas chamber (5) of the pressure vessel (4). This thermostat uses no aid. It guarantees, measured against the known or proposed thermostat systems, the withstanding of substantially higher overtemperatures without in any way impairing the operational reliability and service life. In this arrangement, the overtemperature protection requires a comparatively small installation space and is also, in addition, economic and of simple design. <IMAGE>
Patent GB-863614-A (GB)
Title: Vapor arc lamp
Inventor: JURICK ERNEST FRANK
IPC: H01J61/34
Filed: 1957-06-12
Abstract: 863,614. Discharge lamps. ENGLEHARD HANOVIA Inc. June 12, 1957, No. 18603/57. Class 39(1). A vapour, particularly high pressure mercury, arc lamp comprises an outer tubular light transmissive envelope 6, a high temperature vapour arc tube 1 coaxially supported within the envelope 6 by end fittings 2, 3, carrying leads 4, 5, and by at least one toroidal helical spring 7 positioned within the region of the central one third of the arc tube length. The spring is made of a material which retains its shape when subjected to the normal operating temperatures of the arc tube and the adjacent turns of the spring are free of contact with each other to prevent the casting of shadow.
Patent GB-585894-A (GB)
Title: Improvements in or relating to circular knitting machines
IPC: D04B9/18
Filed: 1944-09-28
Abstract: 585,894. Knitting-machines. STIBBE & CO., Ltd., G., STIBBE, E. V., and BARSBY, E. S. Sept. 28, 1944, No. 18626. [Class 74 (ii)] A circular machine having means for knitted a spliced area with non-parallel sides or of irregular shape has needle jacks arranged for controlling the sinkers so that only those needles which knit the splicing thread form enlarged loops. A pivoted flopper cam 17 is moved to engage the sinkers by a bell-crank lever 25 engaged by an arm 24 connected to a bifurcated arm 20, the forked end 20a of which receives a pin 18 projecting from a slidable portion 16 of a jack cam 15. As the butts 3a of the needle jacks 3 pass beneath the cam 15, the slidable portion 16 is raised, to raise in turn the arms 20, 24 and to move the flopper cam 17 inwardly. In a modification, the slidable portion of the cam 15 may be moved horizontally instead of vertically. Specifications 210,046, [Class 74 (ii)], and 500,435 are referred to.
Patent GB-997439-A (GB)
Title: A method of manufacturing magnetic recording tapes
IPC: G11B5/716
Filed: 1962-05-15
Abstract: 997,439. Magnetic structures. HITACHI SEISAKUSHA KABUSHIKI KAISHA. May 15, 1962 [July 16, 1961], No. 18696/62. Heading H1H. A magnetic recording tape comprises a tape base 1, which may be a polyester or polycarbonate film, provided with a first magnetic layer 2 which contains not more than 65% by weight of magnetic powder, dispersed in amides, and an outer layer 3 which contains more than 80% by weight of magnetic powder dispersed in a binder. A magnetic field of 1000 or more oersted may be applied during the bonding of the first layer on to the base.
Patent GB-801093-A (GB)
Title: Process for development of polyamide relief printing plate and developer therefor
IPC: G03F7/32
Filed: 1957-06-13
Abstract: 801,093. Photomechanical printing surfaces. TIME, Inc. June 13, 1957 [Oct. 17, 1956], No. 18712/57. Addition to 795,961. Drawings to Specification. Class 98(2) Light exposed surfaces of alcohol-soluble synthetic linear polyamides sensitized as with bichromate or with unsaturated organic compounds as described in Specification 767.912 are developed with a solution of .25-70 grams per litre of calcium chloride in methyl or ethyl alcohol to produce printing plates. The procedure follows that of the parent Specification which includes use of similar but more concentrated developing solutions for similar purposes. Relative motion is applied between the surface to be developed and the developer.
Patent GB-812871-A (GB)
Title: Incubators and similar warming apparatus
IPC: A01K31/19
Filed: 1957-06-13
Abstract: 812,871. Hatching and rearing appliances. ROUZE, F. June 13, 1957 [June 14, 1956 (2) ; June 3, 1957], No. 18735/57. Class 5(2). [Also in Groups VI and XI] Heating for an incubator or other warming chamber is obtained by passing an electric current through a coating on a glass panel, which thereby becomes uniformly heated and radiates towards the interior of the chamber. For warming chickens or other small animals a heating panel 1 covered with an insulating pad 3, is mounted on adjustable legs 7 so as to radiate downwards. Thermostats and other controls 9, 10 may be provided. A chamber provided with heating panels 31, Fig. 5, may be used for hatching eggs. They are carried in wire clips 22 on frames mounted on a rotatable shaft 21 so that by rotation of a handle 30 they can be turned about their longitudinal axes during hatching.
Patent GB-771355-A (GB)
Title: Improvements in and relating to supporting or retaining devices
IPC: H01R33/975
Filed: 1954-06-04
Abstract: 771,355. Clip fastenings. McMURDO INSTRUMENT CO., Ltd., NOON, E. R., and LEMMON, M. J. H. June 4,1954 [July 8, 1953], No. 18941/53. Class 44. [Also in Group XL (a)] A retaining device for an article such as a thermionic valve 12 comprises a base from which extend two or more arms 14 bearing against and locating the valve, and terminating in stops such as the hooks 14a; a resilient member such as the spring 15 abuts against the stops, and engages the valve. Further support may be given by laterally extending arms 14b.
Patent GB-1406752-A (GB)
Title: Photographic gelatine layers with physical and photographic properties
IPC: C08F28/00
Filed: 1973-04-19
Abstract: 1406752 Polymeric plasticizers for gelatine AGFA-GEVAERT AG 19 April 1973 [19 April 1972] 18956/73 Heading C3P [Also in Division G2] A plasticizer for gelatine or a photographic layer which contains gelatine comprises a waterinsoluble, elastic copolymer of an acrylic acid or methacrylic acid ester (I) and at least one comonomer (III) which contains a disulphone imido ester or sulphonimidophosphoric acid ester or amide group which renders the substance hydrophilic, and optionally any acrylic, vinyl, vinylidene, divinyl or divinylidene monomer (II). In the examples butyl acrylate, ethyl acrylate, acrylamide, acrylonitrile, N-vinylpyrrolidone and various comonomers (III) are copolymerized in emulsion to give hydrosols.
Patent GB-298292-A (GB)
Title: Improvements in or relating to syringes
IPC: A61M5/315
Filed: 1927-07-18
Abstract: 298,292. Baxter, R. July 18, 1927. Syringes.-In surgical or like syringes comprising a glass barrel 1 having a delivery nozzle 5a the usual plunger packing of cotton or the like wound between flanges 4, 4a, on the plunger rod 2 is replaced by a rubber plug 6 having an internal chamber to receive the flange 4a and shaped at its end to conform with the barrel 1 in order to ensure the complete extrusion of the syringe contents. The Provisional Specification also describes a plug comprising a cup-like fitting on the end of the syringe plunger.
Patent GB-708445-A (GB)
Title: Improvements in or relating to oven gas valves for gas cookers
Inventor: GREIG DAVID
IPC: F24C3/12
Filed: 1951-08-13
Abstract: 708,445. Locking valves. GENERAL GAS APPLIANCES, Ltd. Aug. 13, 1952 [Aug. 13, 1951], No. 18984/51. Class 135. [Also in Group XI] To permit the safe use of push-button gas lighting with the over burners of a gas cooker a two-armed lever f pivoted on a bracket e secured to the cooker framing and urged by a spring h into contact with a collar g secured to the operating spindle b of a combined over burner valve and thermostat a, prevent! by its lower arm the in ward movement of the spindle to engage a clutch and permit rota tion of the valve mem ber until the oven doo j is open. The thermo stat may be adjuste( with the oven door closed.
Patent GB-316965-A (GB)
Title: Improvements in or relating to processes and apparatus for purifying water
IPC: C02F1/76
Filed: 1929-06-20
Abstract: 316,965. Muchka, J. Aug. 7, 1928, [Convention date]. Purifying liquids. - Water which has been treated with chlorine is, before dechlorination, subjected to mechanical or chemical purification, matter such as iron, most likely to injure the apparatus being removed before matter less injurious, such as manganese. Chlorinated water is delivered by a pipe 9 and channel 15 over a bed 7 of material which will separate suspended matter and iron. The water, after passing through this bed, is collected by a pipe 10 and delivered by pipes 11, 12 and a channel 16 to a bed 8 of pyrolusite or other material which will remove manganese. The water thus treated is collected by a pipe 17 and passed through pipes 18, 4 to a dechlorinating filter 1 of active carbon. The purified water is discharged by pipes 5, 6. The filters 1, 8 are fitted with injectors 3, 14 and vertical pipes 2, 13 by means of which the filtering-material can be washed and circulated. The system of piping and valves is such that any of the three filters can be bye-passed. A chlorine measuring apparatus 26 working on the principle of a galvanic cell is provided in the pipe 4.
Patent GB-631040-A (GB)
Title: The manufacture of dyestuffs of the xanthrene series
IPC: C09B11/24
Filed: 1947-07-16
Abstract: Dyes are made by disulphonating a 3.6-di-(o-alkyl- or o : p-dialkyl-anilino)-fluoran.  The products dye wool red to violet shades, and may contain 1.8-2.4 sulphonic groups per molecule. Examples describe the disulphonation under varying conditions of 3.6-di-(m : 4-xylidino)-fluoran.  3.6-Di-(o-toluidino)-fluoran is also referred to as a starting material.
Patent GB-1196603-A (GB)
Title: Improvements in or relating to subaqueous echometers
Inventor: WILLIAMS WILLIAM PETER
IPC: G01S7/60
Filed: 1967-04-26
Abstract: 1,196,603. Echo ranging. MARCONI SOUNDING DEVICE CO. Ltd. 20 Feb., 1968 [26 April, 1967], No. 19159/67, Heading H4D. To provide a readily-interpreted display of depth conditions and subaqueous navigational hazards ahead of a ship, a forward-looking and downwardly-inclined echo sounder is provided with a recorder having a record surface driven longitudinally and a recording element which makes, once for each transmitted pulse, an excursion across the surface along a track the ends of which lie on a straight line at a predetermined angle # other than a right-angle to the direction of movement of the record surface. The track may be a straight line, or a shallow arc the chord through the ends of which is at the angle # to the record surface movement. The recorder may comprise (a) a recording element either driven by a belt disposed at the angle # or mounted on a pivoted arm or rotating disc, or (b) a recording voltmeter or ammeter, and is arranged to mark the record surface when an echo is received. In case (b) a ramp voltage or current waveform is initiated by the transmitted pulse and the recorder samples the ramp amplitude when an echo is received. To ensure that the distance of a recorded mark, from one longitudinal edge of the record surface and measured in a direction normal to the record surface movement, represents the distance ahead of the ship of an echo-producing object, the speed of the recording element along its track or the slope of the ramp waveform is selected to satisfy a given relationship between it and the maximum distance to be displayed, the speed of sound in water, the water depth, the inclination of the sounding beam, and the angle #.
Patent GB-732369-A (GB)
Title: Arrangement for ventilating motor vehicles
IPC: B60J1/14
Filed: 1952-07-29
Abstract: 732,369. Ventilating vehicles. 0'SHEI, W. E. July 29, 1953 [July 29, 1952; Sept. 22, 1952], Nos. 19160/52 and 23699/52. Classes 20 (3) and 137. The front side doors of saloon-type vehicles provided with the normal type of verticallyslidable window 5 in combination with a louvre panel 3 pivotally mounted on a vertical axis 4 are also provided with a louvre-type panel 7 made e.g. of glass, plastic, or other transparent material, and pivoted vertically adjacent its front edge between the upper and lower window frame members or, between the top of the window 5 when lowered and the under side of the top of the window frame. Pivotal mountings for the vane 7 comprise upper and lower support members 8a, 9a, secured respectively to the upper and lower window frame members, the upper support member 8a being located for limited axial movement in a mounting 18. Spigots 12, 13, on fittings 8b, 9b secured to the top and bottom edges of the vane 7 engage in corresponding recesses 10, 11, in the members 8a, 9a, the abutting faces between these members being provided with complementary recesses and projections for retaining the vane 7 in its selected angular position. In order to assist the projections and recesses to ratchet when the vane 7 is turned, and to facilitate the removal of the vane 7, the upper support 8a can be moved vertically a limited amount against a spring 16 located in the mounting 18 and urging the member 8a downward. The vane 7 can be moved by hand when the window 5 is open or, alternatively it can be operated by means inside the vehicle. In the arrangement according to Fig. 5, the vane 7 is engaged between the upper edge of the pane 5 and the top window frame member. A lower fitting 21 comprises a channel member 22 lined, e.g. with rubber 23, to fit over the top edge of the pane 5, and a disc 24 secured to its upper surface and abutting a disc 26 above it secured to the lower edge of the vane 7. The two discs 24, 26, connected by a pin 29 to permit slight axial movement between them, are provided with complementary projections and recesses as are a similar pair of discs 30, 31 in an upper fitting 20, the lower disc 30 of which is secured to the upper edge of the vane 7 and the upper disc 31 having a strip 33 for engaging a channel 34 in the upper window frame member.
Patent GB-136126-A (GB)
Title: Improvements in and relating to Pump Couplings.
Inventor: MOSES EDMUND QUINCY
IPC: B60C29/06
Filed: 1919-08-05
Abstract: 136,126. Moses, E. Q. Aug. 5, 1919. Junction - pieces with valves and cocks. - A pump coupling for connecting to a tyre or other air container is provided with a connexion for connecting up a pressure gauge to the container, and the act of coupling up the gauge automatically closes the connexion between the pump and container, and connects the pump to the atmosphere. In the coupling shown, the pump is screwed on to a screw-thread 4, and the air passes via a check valve u and passage 3 to a chamber 2 which normally is connected to the air container via an open valve 9 and a swivelled connexion 6 of usual type. When the pressure gauge is connected over a threaded bush 16, which screws into the stem 12 of a double valve 13, this valve is depressed against the action of a spring 14, which normally keeps it raised, and a valve face 13<b> closes on the valve seat 9 and disconnects the pump from the container, and a face valve 13<a> is moved from its seat 11 to permit air from the pump to pass between the valve stem 12 and a screwed bush 10 in which the valve seat 12b is formed. The act of connecting the pressure gauge on the bush 16 also depresses a valve stem 17, and opens a valve 18, normally closed by a spring 19, thereby connecting the gauge to the container.