baber/WOPTO huggingface dataset:
Patent GB-784692-A (GB)
Title: Improvements in or relating to processes and machines for the continuous production of sections from synthetic resins
IPC: B29C65/04
Filed: 1955-07-27
Abstract: Thermosetting material, more particularly a polyester or epoxide resin, e.g. ethylene glycol maleate or fumarate or allyl phthalate, is cured by a process wherein a series of trains of high-frequency electric waves spaced apart by time intervals longer than the duration of one train are passed through the thermosetting material between two conductors in direct contact with the material or separated therefrom by a film of mould release agent.  Apparatus is described (see Group V) in which resin-impregnated glass fibre webs are shaped between rollers which draw them off spools and which are connected to a source of high-frequency electric current.  The dielectric heating of the material triggers off an exothermic chemical reaction which continues after the wave train has ceased. The material is thus heated partly by electrical energy and partly by chemical reaction and the time required for curing the resin may be of the order of one or a few seconds.  A suitable frequency for the electric waves is 30-50 megahertz.  The thermosetting material is sprayed on both sides of the glass fibre webs already mixed with an accelerator and a catalyst, or the resin may first be sprayed and the ancillary agents afterwards.  The catalyst may be benzoyl, lauroyl, capryl, t-butyl or cyclohexanone peroxide, methyl ethyl ketone, a diazo compound or cyclohexyl hydroperoxide.  The accelerator may be a cobalt or manganese salt, an aromatic polyamine or dimethyl aniline. The material is prevented from sticking to the rollers by films of regenerated cellulose. Shaping of the material may be effected by curing different parts of the impregnated web in different stages. Covered wire, laminates, tubing and sheets may be obtained.
Patent GB-766275-A (GB)
Title: Dehydrating hydrazine by azeotropic distillation
IPC: C01B21/16
Filed: 1954-07-26
Abstract: Aqueous hydrazine is dehydrated by distilling it with a monohydric C3-C5 alcohol which forms an azeotrope with water, whereby the water distils off with the alcohol leaving the concentrated hydrazine in the still.  Anhydrous hydrazine can readily be separated from the concentrate by fractional distillation.  Examples are given wherein n-propyl, isopropyl, secbutyl, isobutyl, isoamyl- and allyl alcohols are employed as water-entrainers.  Other alcohols referred to include cyclopentanol, ethoxyethanol, hydroxyethyl methyl sulphide, and dimethylaminoethanol.
Patent GB-315667-A (GB)
Title: Manufacture of safety glass
IPC: B32B17/08
Filed: 1929-07-15
Abstract: 315,667. I. G. Farbenindustrie Akt.- Ges. July 14, 1928, [Convention date]. Adhesives.-Sheets of glass are united to an intermediate layer of a cellulose derivative of a substituted or non-substituted fatty acid containing more than three carbon atoms. The deriva. tives of naphthenic. and of ricinoleic acid are particularly suitable in possessing strong adherent qualities. The glass plates may be coated with the material to form the intermediate layer with or without a softening agent such as a resin and pressed together or a sheet of the material softened superficially may be united to the glass by pressure. A sticky layer comprising a cellulose ester similar to and preferably containing the same softening agent as the main layer may be applied to the glass. The same acid residue is preferably present in the derivatives of the sticky and main layer. Five examples are given :-(1) A layer of cellulose laurate moistened with chloroform is united to the glass by pressure at 80‹ C. (2) The glass is coated with a solution of 10 grms. of cellulose laurate, 2 grms. of polyvinylacetate resin, 2 grms. of resorcinol-mono-acetate in 50 c.c. of a mixture of equal parts of chloroform and benzene. When this coating is sticky the glass sheets are united by pressure at 80‹ C. (3) The glass sheets are coated with a solution of 10 grms. of cellulose naphthenate, 2 grms. of polyvinylacetate resin and 2 grms. of resorcinol-mono-acetate in 50 c.c. of a mixture of equal volumes of methyleen chloride and methanol which coating is dried and a film of cellulose butyrate-laurate applied before uniting. (4) As in (3), substituting cellulose acetate-butyrate containing two per cent of resorcinol-monoacetate for the sticky film. (5) As in (3), substituting an intermediate film of cellulose butyratenaphthenate. Specification 320,374, [Class 20 (iii), Doors &c.], is referred to.
Patent GB-1356253-A (GB)
Title: Azo pigment compositions
IPC: H01H71/40
Filed: 1970-05-06
Abstract: 1356253 Azo pigment compositions CIBAGEIGY (UK) Ltd 4 May 1971 [6 May 1970 16 July 1970 (2)] 21754/70 34428/70 and 34429/70 Headings C4A and C4P Diazo pigment compositions containing a pigment derived from a tetrazotized benzidine and a coupling component, both components being free of water-solubilizing groups, and a water-soluble azo dyestuff or an insoluble metal salt of an otherwise water-soluble azo dyestuff are described. They are prepared by carrying out the coupling to form the pigment in water and incorporating the water-soluble dye at any stage in the aqueous medium before isolation of the pigment. The water-soluble dye may be formed in situ and converted into an insoluble salt in situ. The properties of the pigment compositions are improved by treatment of the aqueous slurry with solvents, 0À1 to 30% by weight of a C8- C22 fatty alcohol, polyol or diol or 0À1 to 35% by weight of a C 1-20  aliphatic amine, amine salt or amine oxide based on the wieght of dry pigment.
Patent GB-423307-A (GB)
Title: Improvements in filter devices of glass and methods of making same
IPC: B01D29/01
Filed: 1933-08-03
Abstract: 423,307. Filters. JENAER GLASWERK SCHOTT & GEN., Otto-Schott-Strasse, Jena, Germany. Aug. 3, 1933, No. 21782. Convention date, Aug. 5, 1932. [Class 46] A filter device comprises a glass receiver c and a glass filter plate a having perforations b widening towards the draining side of the device, the filter plate being fused to the receiver subsequent to having been perforated. The perforations may be round, polygonal or in the form of slits ; the slits may be arranged as ports of concentric circles.
Patent GB-1515892-A (GB)
Title: Controlled fluid dispersal techniques
IPC: F15D1/08
Filed: 1975-05-21
Abstract: 1515892 Fluid regulation BOWLES FLUIDICS CORP 21 May 1975 [30 Sept 1974] 21884/75 Heading G3H [Also in Divisions B2 F4 and G 1] A spray head suitable for numerous applications is provided with a body member 11 in the form of a fluidic oscillator having an interior chamber 13 communicating at one end with a nozzle 12 having an opening of width W and having at the other an outlet opening 14 of width T, the head being constructed so that there is always in normal operation a positive pressure at the upstream end of the chamber relative to the outlet region 17 whereby there is no feedback of fluid to said upstream end via the control passages 21, 22 as the discharged jet is swept cyclically back and forth through the elongated outlet and is dispersed as a spray. Feedback is stated to be prevented by having the distance 0 = from 4 to 9 times the width W, T = from 1À1-1À7 the width W, and the width X of each control passage less than W. In Fig. 8a (not shown) a vibrating reed (61) at the head outlet resonates  giving an indication of the desired flow-rate. Alternatively a Piezo-electric transducer (57), Fig. 9a (not shown) may be used.
Patent GB-1114111-A (GB)
Title: Improvements in or relating to plug and cylinder lock mechanisms
IPC: E05B27/00
Filed: 1965-05-24
Abstract: 1,114,111. Cylinder lock mechanisms. 777 LOCK & ENGINEERING CORPORATION. 24 May, 1965 [29 May, 1964], No. 21889/65. Heading E2A. A plug 28 for use in a plug and cylinder lock mechanism has two sets of engaging pins 31, 32 in a side wall of a key slot 29 therein, the pins being adapted to engage in complementary depressions 35, 34 in a key 33 for use with the plug. In one embodiment, as shown, the pins 31, 32 are carried in slots 30 in one side wall of the key slot and two further sets of pins staggered with respect to the first sets are present in the other side wall of the slot 29. In use the plug is inserted in the bore 22 of a cylinder 21 in the side walls of which are slots 23. Drivers 24, 25 in the slots 23 engage the rear faces of the pins 31 32 and the drivers and pins are biassed inwardly by springs 26, 27. Insertion of the key causes outward movement of the pins and drivers so that the surfaces of contact therebetween which are part cylindrical come to lie in the surface of contact of the plug and cylinder, thus permitting rotation of the plug in the cylinder. The pins 31, 32 have interengaging shoulder and recess means to prevent relative rotation. In a second embodiment the pins and drivers are of rectangular crcss-section. In a further embodiment the pins are so arranged that the key frees the plug for rotation irrespective of which way up it is inserted into the key slot. In another embodiment the pins all run in separate bores or bores which are linked in pairs or groups lengthwise of the key. In the latter case relative rotation of the pins is prevented by providing an arcuate section groove lengthwise of each pin which either receives part of an adjacent pin or a rib forming part of the plug.
Patent GB-1161864-A (GB)
Title: Freezer Tray and Receiver Bin Combination.
IPC: F25C1/24
Filed: 1968-05-09
Abstract: 1,161,864. Ice-making. GENERAL MOTORS CORP. 9 May, 1968 [19 May, 1967], No. 21993/68. Heading F4H. Ice-making apparatus comprises an ice-tray containing a grid which consists of a longitudinal wall and movable transverse walls, and a bin formed with two compartments, the grid being so constructed that when the tray is inverted over the bin and the transverse walls are moved, ice blocks of one size fall into one compartment and blocks of a different size fall into the other compartment of the bin. As shown, the grid includes a set of closely spaced transverse walls 46 and a set of widely-spaced walls 48, the bin having a partition 66 which when the tray is inverted is beneath the wall 68 dividing the two sets. The transverse walls are moved by the engagement of a lever assembly 78-82 on the bin with an extension 72 of the end transverse wall 70. A toothed breaker bar 56 may extend through the set of transverse walls 46 on each side of the longitudinal wall so that the relative narrow ice blocks are broken before collection in the bin. In a modification (Figs. 6 to 8, not shown), the transverse walls of the grid are uniformly spaced and a breaker bar extends along the entire length of the grid on one side only of the longitudinal wall, the partition wall of the bin being aligned with the longitudinal wall of the grid.
Patent GB-855124-A (GB)
Title: Air spring supported vehicles incorporating level control means
IPC: B61F5/02
Filed: 1957-07-12
Abstract: 855,124. Road and railway vehicle undercarriages. BUDD CO. July 12, 1957 [July 12, 1956], No. 22106/57. Classes 103(6) and 108(2). In a railway or road vehicle in which the car body 15 Fig. 1, is supported by air springs 16 on a hollow bolster 11 carried by slide bearings 12 on side frames 10, a control valve 21 Fig. 4, for controlling the level of the body 15, is connected between the air springs 16 and a source of air under pressure (through a supply pipe 22) and is actuated in response to vertical movement of the body 15 by a torsion rod 60, Fig. 2, connected between the body and the frames, a rotary-type shock absorber 47 being connected between the valve 21 and the rod 60. The bolster 11 Fig. 1, serves as an air reservoir connecting with the springs 16 through apertured plate valves A and has a centre hub 13 engaging a socket carried at 14, by the side frames 10. The hub 13 is connected by a pin 66 and adjustable lever 65 with an arm 64 secured to the rod 60, the latter being supported in bearings 61, 62 Fig. 2, carried by transverse beams 17 on the body 15. The bolster is connected by a pipe 20, Fig. 4, with the casing 25 of the control valve 21 carried by an air-tight box 32 mounted on one beam 17. An annular seat 26 within the valve casing 25 is closable by a valve 27 under the urge of a spring 29. The valve 27 also engages a seat 38 on the end of a hollow valve stem 39 slidable in the casing 25 and urged away from the valve 27 by a spring 42. The annular space between the seats 26, 38 is connected to the pipe 20. Abutting the head 41 of the stem 39 is an element 45 adjustably mounted by bolts 49' on the arm 46 of the rotary-type shock absorber 47, bolted to box 32. The lower end of the arm is connected through a resilient bush 52 and a pin 51 with an arm 50 secured to the rod 60 Fig. 2, the latter being sealed with the box 32 through a resilient sleeve. Clearly when the body 15, 17 moves vertically, the rod 60 will rotate and operate the arm 46 the angular movement being limited by the arm 50 engaging one or other of the parallel sides of a projection 67 of the box 32. When the element 45 moves to the left in Fig. 4, the valve 27 is lifted from the seat 26 and air under pressure from the pipe 22 passes through the pipe 20 to the bolster. When the element 45 moves to the left from the position shown in Fig. 4, the valve 27 is seated but the seat 38 moves away from the valve 27 so that the pipe 20 communicates with the interior of the box 32 which has an escape valve 68 operable when the air in the box is above a predetermined low pressure. Reference -has been directed by the Comptroller to Specification 813,712.
Patent GB-1142581-A (GB)
Title: Improvements in heat-insulating panel assemblies
Inventor: SHONE KENNETH ARTHUR
IPC: F25D23/06
Filed: 1965-05-25
Abstract: 1,142,581. Thermal insulation. ENGLISH ELECTRIC CO. Ltd. 24 May, 1966 [25 May, 1965], No. 22187/65. Heading F2X. [Also in Division F4] A heat insulated panel, e.g. a refrigerator door, is formed by providing sealing members 10 around the periphery of a first sheet, forcing a peripheral flange 12 of a second sheet into members 10 and foaming a plastics material in the space between the two sheets. Members 10 are held in inwardly facing channels 8 formed at the edges of the first sheet and may have grooves 11 to facilitate insertion of flange 12. Preferably, the first sheet is formed of steel, the second of plastics material, the insulation of foamed polyurethane and members 10 of expanded polystyrene.
Patent GB-615119-A (GB)
Title: Improvements in and relating to domestic firegrates
IPC: F24B1/18
Filed: 1946-07-25
Abstract: 615,119. Open fireplaces. FEDERATED FOUNDRIES, Ltd., and PRIMROSE, J. M. July 25, 1946, No. 22196. [Class 126] [Also in Group XIII] A domestic firegrate has an interior frame i attached to the interior of the grate a from the front by hooks or studs co-operating with slots, eyes or sockets. The firegrate a which is formed with a surrounding frame e is introduced into a firegrate opening b leaving a convector air space d which is sealed from the interior frame i by cement f or other means. The interior frame i is removably attached to the fireplace by hooks which engage slots h in the firegrate surround e.
Patent GB-712418-A (GB)
Title: Printing of fabrics
IPC: D06P1/22
Filed: 1951-09-24
Abstract: Fabrics of a linear aromatic polyester, e.g., polyethylene teraphthalate, are printed with a vat dyestuff, steamed in an acid or neutral medium in the presence of a reducing agent, e.g., zinc formaldehyde sulphoxylate, to form the acid leuco derivative of the dyestuff and finally treated with an oxidising agent, e.g., ammoniacal hydrogen peroxide or nitrous acid, to oxidize the leuco compound in situ on the fabric.  The reducing agent may be applied in the printing paste or, alternatively, it may be padded on the printed fabric prior to the steaming operation.  Preferred vat dyes are those of the anthraquinone, polynuclear quinone, indigoid and thioindigoid series.  The printing paste may contain swelling agents and thickeners such as sodium alginate and British gum thickening and in the examples additional ingredients are p-hydroxydiphenyl, turkey red oil and the sodium salt of dinaphthylmethane disulphonic acid.
Patent GB-1190122-A (GB)
Title: Blood Pressure-Measuring Apparatus
IPC: A61B5/0255
Filed: 1968-05-10
Abstract: 1,190,122. Blood pressure-measuring apparatus. F. HOFFMANN-LA ROCHE & CO. A.G. 10 May, 1968 [12 May, 1967], No. 22304/ 68. Heading ASK. [Also in Division G1] An apparatus for measuring blood pressure in small animals, eg. rats, a preferred embodiment of which is shown in the Figure, comprises a pressure generator 1 connected to a pneumatic sleeve 7 and the recording head 11 of a pen recorder, and an electrical pulsegenerating pressure transducer 15 coupled via an amplifier 16 to the .pen-moving mechanism of said recording head so that the motion imparted to the pen 17 is in the same plane as, but at right angles to, the motion imparted to the recording head by said pressure generator; said pressure generator consisting of a piston 2 enclosed in a cylinder 3 (either the piston or the cylinder being displaceable), a tube 8 connecting the cylinder on the pressure side of the piston to the pneumatic sleeve and an arm 12 synchronously connecting the cylinder or piston (whichever is displaceable) via a transmission system (13, 14) to the recording head. The pulses are preferably picked up by means of a piezocrystal ring 15, which together with the pneumatic sleeve is slipped over the animal's tail. In the preferred embodiment shown in the Figure, the piston is slidably located. in the cylinder and connected to a reversible electric motor 4 by the threaded spindle 5, and the flexible tube 8 is provided with an expansion chamber 9 and monitor pressure gauge 10.
Patent GB-201776-A (GB)
Title: Improvements in or relating to swivelling wheel-forks for bicycles and like vehicles
IPC: B62K21/18
Filed: 1922-08-16
Abstract: 201,776. Hopper, F., and Elswick- Hopper Cycle & Motor Co., Ltd. Aug. 16,1922. Forks; heads. - A swivelling wheel fork for bicycles and like vehicles comprises two blades A spaced apart by and secured to two crowns B, C, one at or near the upper ends of the blades and the other in an intermediate position, the crowns being each provided with a spigot turning in a bearing member J. The members J are carried by different frame members, such as the upper and lower tubes of a bicycle frame, and replace the usual head tube rigidly connecting the two bearings.
Patent GB-313798-A (GB)
Title: An improved mechanically propelled horse or like device
IPC: A63G19/00
Filed: 1928-08-02
Abstract: 313,798. Headley, F. H. Aug. 2, 1928. Body motion and weight of rider, propelling by. - A horse or like velocipede, is mounted on forward and rearward wheels b, d, and is propelled by one or a pair of stirrup-like members e suspended from the front part of a substantially horizontal lever f, pivoted at f<1> to the body a and connected at its rear part by a link g to a reciprocating chain h, which engages a ratchetwheel or equivalent driving-device d<1> on the rear wheel or wheels d, the return movement being effected by a spring i. Alternatively, similar driving-mechanism may be provided on each side of the body, the two mechanisms being actuated alternately or simultaneously.
Patent GB-894160-A (GB)
Title: Improvements in electrical pin boards
IPC: H01R9/26
Filed: 1960-06-27
Abstract: 894,160. Plug boards; two-part couplings. AMP Inc. June 27, 1960 [June 29, 1959], No. 22414/60. Class 38 (1). A control panel in the form of a pin-board comprises a series of insulating blocks 16, all but the endmost blocks being mounted on a pair of rails 28 by screws 30. The end blocks are secured by screws 26 which also hold a front insulating plate 18. Each block has two columns of passageways 34, 36 extending through it, each passageway 34 being paired with a passageway 36. Each pair of passageways, together with a rectangular groove 38 extending approximately half-way through each block from its front surface, form four edges 40 and an opening for receiving a pin and a pair of contacts. The plate 18 has pin-receiving holes 12 in registry with the openings. Each passageway 34, 36 supports a spring contact, Fig. 6, which is inserted from the back of the block until wings 68 abut a shoulder 70. At the same time a spring tongue 72 snaps behind a shoulder 74 but the tongue can be depressed to permit withdrawal of the contact from the block. A pair of flanges 80 on the base of the contact fit in side channels 82 in the passageways 34, 36 and ensure accurate location of the leaf-spring portion 60 of the contact. The bottom of the groove 38 limits the insertion of metallic pins 14. Fig. 4 shows how the contacts are connected by leads 2, 4. Any lead 2 may be connected to any lead 4 by insertion of a pin in any associated pair of passageways 34, 36. Pins may be connected by a jumper wire 87 or to an external lead 87a. In a modification, Figs. 7, 9 (not shown), the contact-carrying blocks are cemented side-by-side either directly to a front plate or preferably to an intermediate plate which is detachably secured to a front plate.
Patent GB-140323-A (GB)
Title: Improvements in rollers for antifriction roller bearings
IPC: F16C33/36
Filed: 1919-09-12
Abstract: 140,323. Marks, E. C. R., (Nordiska Kullager Aktiebolaget). Sept. 12, 1919. Roller bearings.-The end surfaces of convex and other bearing-rollers are recessed at 2 in order to limit the area of the flat end surface to the ground, and to avoid undue stresses in the material set up by the heat generated in the grinding.
Patent GB-831711-A (GB)
Title: Bracing arrangement for a stripping-action scraper installation for use in coal or other mines
IPC: E21C29/08
Filed: 1958-07-14
Abstract: 831,711. Mineral - mining apparatus. GEWERKSCHAFT EISENHUTTE WESTFALIA. July 14, 1958 [July 20, 1957], No. 22528/58. Class 68(1) A driving or reversing station 10 of a. mineral-mining machine haulage system 11 is mounted on a platform 14 disposed at right angles to the haulage system and slidably supported on arms 15 of a U structure 15, 16. The U structure, which is positioned in a roadway has skids 21 for engaging the face side 23 of the roadway, four legs 17, 18 of adjustable length at each corner of the structure for supporting it from the floor 19 of the roadway and at least one roof-engaging member 30 of adjustable length. Tension on the haulage system is maintained by a weight 27 secured to the platform by a cable 26 passing over a pulley 25 on the structure.