baber/WOPTO huggingface dataset:
Patent GB-799471-A (GB)
Title: Improvements in or relating to the production of compacted zirconium
IPC: C22B34/14
Filed: 1956-11-08
Abstract: 799,471. Extracting zirconium. NATIONAL LEAD CO. Nov. 8, 1956 [Nov. 29, 1955], No. 34171/56. Addition to 758,763. Class 82(1) The method and apparatus of the parent Specification are modified for application to zirconium by the employment of a funnelshaped reactor being an inverted conical reaction zone 13 and a cylindrical compression zone 14 wherein the Zr is compacted by a ram 27. The reactor is preferably in two parts detachably secured by a ring 23; the zone 14 is reinforced with spaced ribs 24 and may taper to have a slightly larger internal diameter at its lower end; heaters 18 are provided, together with a cooler 26 for freezing; if necessary, entrapped salt to form a plug. A temporary metal plug 15 supported by a jack 16 is normally initially employed as a support for the metal Zr settling in zone 14. The reciprocable piston 27 is surrounded by an air tight enclosure comprising a jacket 29 and rubber boot 30; whilst its head 32 is conical. A bath 54 of molten magnesium chloride and sodium chloride is formed in the stainless steel reaction vessel and maintained at 740-840‹C., the sodium chloride being kept at 10-25 per cent of the bath throughout the reaction by additions as necessary. The apparatus is purged with helium supplied at 44; ZrCl 4  is then continuously admitted with the He from a sublimator 41 via tube 33, and Mg metal via 34. A constant level of bath 54 is maintained by means of overflow 35 and pump 37, whilst He and excess ZrCl 4  vapour escape via vent 38 to trap 39. As Zr metal collects in zone 14 the piston 27 is moved downwards to compress it against the plug 15 and jack 16 (Fig. 2b), after which the pressure differential is increased to push the compacted metal and the plug downwards. This is effected at intervals, and as the Zr metal compact lengthens the plug 15 is dispensed with (Fig. 2g). The compact is said to be approximately 88 per cent metal and it may be either leached or used as an arc electrode to produce the pure Zr metal. Instead of a continuous process a batch method may be used in which case the zone 14 may be a cylinder of e.g. steel closed at its lower end. The process is carried on until the compression zone is filled with compacted Zr metal, when the zone may be detached from the reactor 13 and replaced by another similar closed-end cylinder 14. Specifications 665,715 and U.S.A. Specification 2,586,134 are referred to.
Patent GB-451475-A (GB)
Title: Improvements in combined brake, housing and wheel
IPC: F16D51/14
Filed: 1934-11-30
Abstract: 451,475. Brakes. SAUZEDDE, C., 8115, Agnes Avenue, and DETROIT HYDROSTATIC BRAKE CORPORATION, 905, Cadillac Square Building, both in Detroit, Michigan, U.S.A. Nov. 30, 1934, No. 34190/35. Divided out of and addition to 442,800. [Class 103 (i)] The wheel described in the parent Specification is modified by the provision of a brake comprising a plurality of radially arranged cylinders 29 the pistons 30 of which carry brake shoes 12 co-operating with the inclined walls 7 of the hub, the pistons being operated hydraulic- .ally. The cylinders are connected to the operating mechanism by a bore 26 in the hub. Cooling fins 25 are provided.
Patent GB-1421233-A (GB)
Title: Vinylidene chloride-vinyl chloride copolymer compositions
IPC: D04H1/54
Filed: 1973-07-18
Abstract: 1421233 Synthetic resin compositions DOW CHEMICAL CO 18 July 1973 34235/73 Heading C3P A composition useful as an adhesive seam material, comprises a crystalline copolymer of vinylidene chloride and vinyl chloride and 2-6% by weight based on the copolymer of a polycaprolactone of formula where n is 100 to 1000. The compositions are formed into fibres or strips and used to bond fabrics by dielectric heating. In one example dibutyl sebacate is added to the composition.
Patent GB-1246223-A (GB)
Title: Device for connecting two thin plates
Inventor: FRIEDLING GERARD
IPC: F16B17/00
Filed: 1969-07-07
Abstract: 1,246,223. Jointing. TECHNICAIR S.A. 7 July, 1969, No. 34237/69. Headings B3H, B3U and B3V.  A device for connecting two thin plates A, B to each other includes a shank 1 having a head 2 adapted to be inserted into an opening in one plate A, the shank 1 being crossed by a slot 4 adapted to receive a marginal portion of the second plate B, the arrangement being such that when the device is fully inserted Fig. 5, into the aperture of plate A so that the two plates A, B are abutting and the head 2 is abutting the plate A, the marginal portion of plate B is deformed by the base of the slot 4 to form a lateral swelling B 1 . The slot may be so shaped that the marginal portion of plate B is curved in the slot (Figs. 6 and 7, not shown) or may be wedge shaped (Figs. 8 and 9, not shown). In another embodiment, the device is provided with a further slot (31) (Figs. 10 and 11, not shown) extending part way across the shank 1 and the head has a threaded hole (33). In a further embodiment, the walls of the slot have'teeth (42) (Fig. 13, not shown). The slot may be curved.
Patent GB-1066943-A (GB)
Title: Improvements in gas burning cigarette lighters
Inventor: LOWENTHAL HANS
IPC: F23Q2/52
Filed: 1963-08-30
Abstract: 1,066,943. Lighters. COLIBRI LIGHTERS Ltd. Aug. 11, 1964 [Aug. 30, 1963], No. 34440/63. Heading F4F. A lighter such as that described in Specification 1,066,942 has a gas tank 3 held in position by removable spring member 18 extending along one side of the tank and having tangs 19 which urge the rim 15 of the filling valve 16 into a recessr 17 in the inner casing 2.
Patent GB-346794-A (GB)
Title: Improvements in or relating to egg products and processes for producing the same
IPC: A23L15/00
Filed: 1929-11-12
Abstract: To modify the colloidal properties of liquid egg material, particularly egg yolks, an edible hydrophyllic colloidal substance capable of dispersing uniformly in water at about room temperature, e.g. gum tragacanth, gum acacia, or citrous or other pectin is added. The colloid is first mixed with an edible non-aqueous medium such as corn oil, cotton seed oil, sesame oil, glycerine, or other liquid, or with finely powdered water-soluble solids, e.g. common salt, sucrose, dextrose, lactose or other crystalline carbohydrates and the mixture dispersed through the egg material.  The mixture may be added to water to hydrate the colloid before addition to the egg material. The treated material may be used directly, or may be stored in cans or other receptacles in the frozen state or at a temperature above freezing but below that at which bacterial decomposition takes place. An acid substance such as lactic, tartaric, acetic or phosphoric acid, or sugar, glycerine or common salt may be added before storage to prevent bacterial decomposition during and after thawing.  To prevent denaturing of the egg material during freezing edible water-soluble organic hydroxyl compounds, e.g. glycerine or common salt, edible acid or sugar may be added to the egg material before addition of the colloid.  The egg material treated may have an excess of egg white added thereto.  The product may be employed in preparing salad dressings.
Patent GB-1317948-A (GB)
Title: Cooler for corrosive fluids
IPC: F28F21/06
Filed: 1970-07-16
Abstract: 1317948 Cooling liquids in bulk; hollow-plate heat exchange elements PAMPUS KG 16 July 1970 [22 July 1969] 34548/70 Heading F4S A hollow-plate heat exchange element consists of a sheet of plastics material such as polytetrafluorethylene, folded over and welded at the edges to form a closed bag, the sheet having integrally formed strap members 6 enabling the element to be suspended therefrom into a fluid to be cooled by a coolant flowing through the element. The coolant enters and leaves the bag by way of inlet and outlet tubes 2, 3 and a sinuous flow path within the bag is provided by joining together the sheet portions along weld lines 4, 5 as shown. The element may form all or part only of a lining for a vessel containing a corrosive fluid to be cooled.
Patent GB-492008-A (GB)
Title: Improvements in and relating to thermal relays
IPC: H01H37/00
Filed: 1937-12-14
Abstract: 492,008. Electrically-tripped switches. AKT.-GES. BROWN, BOVERI, & CIE. Dec. 14, 1937, No. 34550. Convention date, July 26. Addition to 487,735. [Class 38 (v)] In an overload relay of the type described in the parent Specification, a shortcircuited ring F<1> is mounted in the magnet core a. The primary winding, which carries the current to the apparatus to be protected, is disposed on a limb of the core a not shown and induces a current in the ring F<1>. the resulting rise of temperature causing a column of bi.- metallic discs c to expand, raising a rod f and through a differential-gear mechanism and a series of latches, tripping a spring-biassed switch member n. A wheel C<2> of the differential gear is adjustably fixed by a pointer e. Movement of the rod f rotates wheel C and causes the planet wheel C<3> to move round bodily till a pro. jection D engages a latch K<10>.
Patent GB-487236-A (GB)
Title: An improved method of operating an evaporator
IPC: B01D1/00
Filed: 1936-12-16
Abstract: In an improved method of operating an evaporator, steam is introduced into the interior of externally heated tubes traversed by the solution to be evaporated, the quantity of steam being in excess of that necessary to raise the heat-transfer figure between the tube wall and the solution to the maximum attainable during steam injection, and the steam is then suddenly shut off.  It is stated that after this the evaporator operates with a heat-transfer figure higher than the maximum attainable during steam injection.  If the amount of steam injected is 8 per cent of the steam generated within the tube the heat-transfer figure rises about 50 per cent above the figure obtained in normal operation.  This is the highest attainable with steam injection. If the amount of steam is increased to 59 per cent the heat-transfer figure falls but if the steam is shut off suddenly the transfer figure rises about 100 per cent above its value before steam injection.
Patent GB-1013752-A (GB)
Title: Battery separator
IPC: H01M50/449
Filed: 1963-09-02
Abstract: A battery separator comprises a base sheet of acid-resistant microporous material bearing at least one rib consisting of a blend of fused, homogeneous thermoplastic plastisol and a cured, thermosetting resin having a porous particulate filler distributed throughout.  The base sheet may be resin-impregnated paper or cotton linters, the resin preferably being a phenolic resin, microporous rubber or a thermoplastic material.  The base sheet may either be flat or have embossed or otherwise formed ribs.  The plastisol consists of a thermoplastic resin e.g. P.V.C. or copolymer of vinyl chloride and vinyl acetate, vinylidene chloride, or diethyl maleate dispersed or suspended in a suitable plasticizer.  The thermosetting resin may be a phenolformaldehyde resin or an unsaturated polyester resin containing a co-polymerizable ethylenically unsaturated monomer.  The polyester may be prepared from one or more of the following acids: maleic, fumaric, aconitic, mesaconic, citraconic, ethylmaleic, pyrocinchonic, veronic, itaconic- (with or without adipic, succinic, sebacic, phthalic, linolenic, linoleic or elaeosteric acids) and one or more of the following glycols: ethylene, di-, tri-, and poly-ethylene, 1,3-propylene, 1,2-propylene, dipropylene (1,3 or 1,2), butylene or styrene glycol.  specified monomers copolymerizable with unsaturated polyesters are styrene, vinyl toluene, methyl methacrylate, vinyl acetate, diallyl phthalate and triallyl cyanurate.  Porous particualte fillers may be hydrous silica gel, bentonite, or terra alba.  When the base sheet has formed embossed ribs, the blend is applied to the tops of the formed ribs. Specifications 532,475, 700,666 and 770,241 are referred to.
Patent GB-282692-A (GB)
Title: Improved process and apparatus for the generation of power from heated liquids
IPC: F03G7/04
Filed: 1927-12-21
Abstract: 282,692. Marguerre, F. Dec. 21, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Turbine nozzles; working-fluid supply; motor power plant.-The nozzles of turbines driven by the mixture obtained by the expansion of superheated water are of variable cross-section and divergence. The variation is dependent upon the load or the characteristics of the working fluid and may be effected automatically. Steam and water may be drawn separately at D and E, Fig. 3, from an expansion turbine T, the steam being passed to a second turbine F and thence to a condenser G. Or the exhaust from the turbine may be lead to a storer and there separated. Or, either the steam alone, as in Fig. 5, or the whole exhaust, may be passed direct to the condenser G. In the plant, shown in Fig. 7, the water is superheated at L<1> and L<2> by steam drawn from a turbine M : it is then expanded in turbine T and the steam of the exhaust passes to turbine F or any, heat consumer.
Patent GB-182143-A (GB)
Title: Improvements in steam boilers
IPC: F22B17/12
Filed: 1921-09-30
Abstract: 182,143. Smith, D. V. H. Sept. 30, 1921. Water-tube boilers.-A water-tube boiler is built up of sections each consisting oi an upper header 4, Fig. 3, two bottom headers 5, 6, vertical side tubes 3, and inclined top and cross tubes 3<a>, 3<c>, which form upper and lower longitudinal flues. The gases pass through spaces between the lower parts of the cross tubes into the lower longitudinal flue through an enlarged flue space in a modified end section, Fig. 4. The upper flue opens into the chimney. The sections are connected to a steam and water drum 2 by upper connections 7 and by downcomers 12. Tubes 10 connecting the bottom headers are formed with projections 17 forming supports for the grate.
Patent GB-388887-A (GB)
Title: Improvements in and relating to electric motors
IPC: H02K19/06
Filed: 1931-12-15
Abstract: 388,887. Motors. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitats Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Dec. 15, 1931, No. 34752. Convention date, Dec. 15, 1930. [Class 35.] Motors with unwound iron armatures.-A synchronous motor of the homopolar type more especially for driving gramophones, has the stator located inside an unwound iron rotor b, the active part e of the stator comprising a number of bundles of V-shaped laminae mounted radially and separated from each other. The inner part of the stator comprises a solid body d made 'of insulating material such as wood or die stampings' of any other nonmagnetic material. Shoulders m, n projecting from the central part hold the radial bundles of laminee e and are provided with inwardly directed extensions for spacing the bundles apart.
Patent GB-619177-A (GB)
Title: Filing cabinet
IPC: B42F17/18
Filed: 1946-11-25
Abstract: 619.177. Boxes. GOVAN, J. Nov. 25. 1946, No. 34879. [Class 18] [Also in Group XV] A filing drawer 3 has a plurality of independent trays 7 pivoted at their rearward ends at 8 to the drawer such that on withdrawal of a drawer 3 from its cabinet and opening its cover 6 the forward ends of the trays are tilted simultaneously upwards by a plurality of spaced rods 10 each of which slidably engages the lower surface of the trays 7. The rods 10 are supported by a pair of bars 11 pivoted to a bracket 12 and are connected by links 13 to the cover 6. A number of drawers 3 may be supported within a cabinet 1 or they may form a separate unit. The filing or removal of sheets may be assisted by a pivoted holding device 17 which can , hold back the folded upper portion 19 of a pile of sheets.
Patent GB-193216-A (GB)
Title: Improvements relating to piano stools and the like
IPC: A47C9/08
Filed: 1921-12-29
Abstract: 193,216. Mills, R. E. Dec. 29, 1921. Sliding seats; combined with receptacles.-A music stool 3 comprises in combination an extension 1 sliding in channels 2 and rigidly attached to the rail 7, and a drawer 4 with hinged front 5 sliding on runners 6.
Patent GB-1277874-A (GB)
Title: Preservation process
Inventor: DRYSDALE ALEXANDER DOUGLAS
IPC: A23K3/02
Filed: 1968-07-23
Abstract: 1277874 Preserving grass and green crops BP CHEMICALS INTERNATIONAL Ltd 22 July 1969 [23 July 1968] 34986/68 Heading A2D A method for preventing the growth of mould in grass and other green crops comprises treating freshly harvested grass or other green crops with propionic acid. The propionic acid per se may be added or diluted with an inert solvent, preferably water. Further the propionic acid may be added in association with acetic acid and/or formic acid and/or other additives used in the preservation of crops. The used is preferably used in an amount of 0.1-10% by weight of the grass or green crops, more preferably 0.5-1.25%. The propionic acid may conveneiently be sprayed onto the crop as it is cut.
Patent GB-494465-A (GB)
Title: Improvements in or relating to filing-desks
IPC: A47B19/04
Filed: 1937-12-20
Abstract: 494,465. Desks. HAUGE, K. M. Dec. 20, 1937, No. 35290. Convention date, Jan. 7. [Classes 52 (i) and 52 (iii)] In filing-desks of the type in which the top of the desk is divided into a number of invertible sections 2 hinged on horizontal pivot pins 9 and provided on the underside with means for attachment of a book 8, so that by inverting the top section the book is brought from a storage position to the position of use, the pivot pins rest in slots 10 inclined with reference to the top of the desk and tapering towards the back, the top section thus being movable forwardly to disengage its rear end 11 from the rear part of the fixed desk top 12 and allow of the inversion. A rack 3 for books 4 is provided at the rear of the desk.
Patent GB-758627-A (GB)
Title: Process for the production of direct photographic positives by the silver salt diffusion process
IPC: G03C8/06
Filed: 1954-12-06
Abstract: 758,627. Photographic silver-salt diffusion transfer processes. AGFA AKT.-GES. FUR PHOTOFABRIKATION. Dec. 6, 1954 [Dec. 5, 1953], No. 35309/54. Class 98 (2). The positive layer which may be of nucleicontaining carboxymethyl cellulose, methyl cellulose, polyvinyl alcohol or polyvinyl pyrrolidone is arranged above the negative layer as of formaldehyde hardened gelatino silver chloride or chlorobromide emulsion on the same support as of paper; and after exposure and processing with a solvent such as hypo in the developer, to result in a positive image in the upper layer the latter is transferred with the aid of moisture, heat or pressure to a further support as of baryta paper, film, plastic or fabric, leaving the negative image on the original support. Separation of the layers may be assisted by the provision of a thin intermediate layer between the negative and positive layers. Specifications 614,155, 654,630 and 654,631 are referred to.
Patent GB-1353224-A (GB)
Title: Device for the storage selection and locating in a reading po sition of information recorded on micro-cards
IPC: G06K21/00
Filed: 1971-07-28
Abstract: 1353224 Card selector and store SOC INDUSTRIELLE DES NOUVELLES TECHNIQUES RADIOELECTRIQUES ET DE L'ELECTRONIQUE FRANCAISE 28 July 1971 [4 Aug 1970] 35415/71 Heading G4M  A card selector and store for micro-cards carrying photographic images and having on one edge a series of coded holes and open slots (Figs. 1 to 6, not shown) has a cassette 1 holding a plurality, e.g. 64 cards 3, the cassette being open at one end to receive the cards and having an opening at the opposite end 8. Situated near the said opposite end are a series of holes correspending in number and location to the holes and slots in the cards. The cassette is slid into a selector 14 having a movable support 19 with a groove 28 in which the cassette is guided, the platform being reciprocated vertically by a cam 22. The cards are retained in the cassette by a member released on entry into the selector 14. The selector 14 has a plurality of pneumatically operated plungers 34 corresponding to the holes and slots, the plungers being normally spring biased away from the cassette. On entry of the cassette the plungers are operated to retain all the cards and then selected plungers or plunger freeing a card are released and the support is reciprocated. Compressed air is supplied through a tube 18 and a passage formed by walls 17, 17<SP>1</SP> to the opening 8 in the cassette to separate the cards and blow out the released card which passes through channel 37 to a device having transparent windows 39, 43<SP>1</SP> and a surrounding groove 44 to which a vacuum is supplied to hold the card in a reading position. After reading, when the support 19 is in its lowest position compressed air is supplied to tube 41 and the card is returned to the tip of the stack in the cassette. The cards described have two sets of slots and holes each set having 7 slots and 1 hole to define 64 cards.
Patent GB-363485-A (GB)
Title: An improved rotary fluid operated engine
IPC: F01C1/46
Filed: 1930-11-25
Abstract: 363,485. Rotary engines. MENZIES, A. M., 11, Bannatyne Avenue, Dennistoun, Glasgow. Nov. 25, 1930, No. 35422. [Class 110 (ii).] A rotary engine has a hinged abutment k which acts as a non- return valve to admit steam through a port j to an annular space g to act on a piston d fixed to a rotor a. The exhaust steam passes through a port j<1>, and in the case of a multi-stage engine, as shown in Fig. 4, thence to a collecting tank m<1> before passing to the L.P. stage B. The engine may be reversible by being provided with two valves k, one only being used for one direction of rotation. In the H.P. stage A two inlet ducts n, or n<1>, which lead to ports covered by two flap valves, are controlled by a piston valve p<1> which admits steam to the space g from either steam chest r, r<1>. A slide valve s is operated by a spring- loaded push-rod t which is pressed downwards by a cam u on the shaft b. The cam u, not in use in Fig. 4, is slid along the shaft b. The main steam supply pipe q feeds pipes q<1>, q<2>. Each flap valve k is fixed on a cross rod w connected to a lever w<1> which is operated when the cams u, u<1> and valve p<1> are positioned to reverse the direction of motion. Similar control means are provided for the L.P. stage B or for any further stages.
Patent GB-1526554-A (GB)
Title: Brick tie
IPC: E04B1/41
Filed: 1975-08-27
Abstract: 1526554 Wall ties N W HAINES 27 Aug 1975 35425/75 Heading EIB A wall tie is formed at least at one end with means for embracing a structural member 17, so that when the other end 21 is keyed in brickwork it prevents movement of the brickwork away from the structural member and with at least two ribs or grooves across at least one face. Keying apertures 22 are provided. In a preferred embodiment four tapering notches of different width are provided, two on each side. Keying ribs are provided outwardly of the notches and water bars inwardly of the notches. The ends of the ties may be turned up and/or down.