baber/WOPTO huggingface dataset:
Patent GB-1197488-A (GB)
Title: Improvements Relating to Electric Ovens having a Door Latching Mechanism
Inventor: LAFFORGUE JEAN-CLAUDE RENE
IPC: F24C14/02
Filed: 1967-12-15
Abstract: 1,197,488. Electric control of latches. CANADIAN GENERAL ELECTRIC CO. Ltd. 15 Dec., 1967, No. 57117/67. Heading E2A. An electric oven has a housing 19 in which is pivoted a latch with a hook 24 which is engageable in a slot 21 in an oven door 14, the latch is held in inoperative position abutting a stop 30 by a prestressed bimetallic strip one end of one leg of which is pivotally connected to the latch the end of the other leg 27 being secured to the housing, when the oven is heated a looped element 31 of the oven heating unit heats the bimetallic strip causing it to pivot the latch to latching position. The latch actuates a switch 33 to effect an increased heating of the oven to clean it. Alternatively the bimetallic strip is V-shaped and has one end connected to the latch by a spring. The strip may be heated by an element separate from the oven heating unit.
Patent GB-1485378-A (GB)
Title: Pinch foil seals
IPC: C03C27/04
Filed: 1974-12-10
Abstract: 1485378 Protecting pinch seals THORN LIGHTING Ltd 10 Dec 1974 [11 Dec 1973] 57392/73 Heading C1M A pinch foil seal is protected against oxidation by coating the seal, after its formation, with a layer of glass comprising, in mole per cent: the remainder of the glass, if any, up to at least 99 mole per cent, being one or more oxides selected from alkali metal oxides, alkaline earth metal oxides and zinc oxide. The seal 11 may comprise molybdenum foil 12 and attached conductors 13 and 15 (15 acting as a filament in lamp envelope 10) enclosed in a quartz pinch (11). The seal is coated by immersion, up to line X-X, in a slurry of, e.g., 30 gm. of the glass in 100 ml. methylated spirit, drying at 60‹ C. in air for 2 minutes, repeating the immersion and drying until a desired thickness is achieved, and firing at 450‹ C. for 10 minutes in air.
Patent GB-1316688-A (GB)
Title: Apparatus for positioning and holding the neck of a bag containing aproduct
IPC: B65B31/06
Filed: 1971-12-10
Abstract: 1316688 Holding and positioning filled bags W R GRACE & CO 10 Dec 1971 [14 Dec 1970] 57521/71 Heading B8C The neck of a filled bag 10 is clamped to a conduit 38 by means of a pair of pivotal arms 16. The remainder of the bag 10 is supported by a sloping shoot 18. The conduit 38 is connected to a vacuum source. The arms have circumferential clamping surfaces provided with rubber inserts (34, 36, Fig. 2) and are carried by shafts (26, 28) interconnected by gearing and connected to a handle (40). A torsion spring acts on the shafts to separate the arms. One arm carries a leaf spring (58, Fig. 4) which engages in a recess (56) in the other arm to hold the arms in the clamping position. A button 60 is provided to urge the spring (58) out of the recess (56) for opening the arms.
Patent GB-1201628-A (GB)
Title: Process for the production of kawain and kawain substitution products
IPC: C07D309/32
Filed: 1967-12-20
Abstract: 1,201,628. Production of kawain and kawain substitution products. SPEZIALCHEMIE G.m.b.H. & CO. 20 Dec., 1967 [20 Dec., 1966(2)] No. 57855/67. Heading C2C. 4 - Alkoxy - 6 - styryl - 5,6 - dihydro - α - pyrones optionally substituted in the benzene ring are produced by reacting a #-alkoxycrotenate with an N-halosuccinimide or 1,3-dibromo-5,5-dimethylhydantion, at a temperature greater than 100‹ C. and in the absence of a solvent; the -succinimide or dimethylhydantoin formed being removed with H 2 O and the γ- halo-# alkoxyerotonate formed is distilled in vacuo then reacted with cinnemaldehyde, cinnamic acetal or substituted cinnamaldehyde or substituted cinnamic acid in the presence of zinc. The 4-alkoxy-6-styryl-α-pyrone or substituted 4-alkoxy-6-styryl-α-pyrone is then precipitated from the zinc salts by treatment with a mineral acid of a concentration not greater than 10%.
Patent GB-1377378-A (GB)
Title: Record-changer spindle
IPC: G11B17/16
Filed: 1971-12-15
Abstract: 1377378 Changer spindle PIONEER ELECTRONIC CORP 15 Dec 1971 [29 Dec 1970] 58354/71 Heading G5R A record supporting spindle for a record changer comprises primary and secondary sets of pawls 10, 19 for supporting records on the spindle, the secondary set being actuated outwards to support the records other than the lowermost by axial movement of control shaft 1 and the primary set being retracted to release the lowermost record by rotational movement of the shaft. The shaft 1 extends upwardly through bearing 2 and is secured to a collar 5 which engages a primary pawl support 8. This support is vertically movable but prevented from rotation by pin 9 and supports three primary pawls 10 which are outwardly biased through windows in the spindle shell 3 by springs 11. A pawl actuating cam 12 is secured to shaft 1 and is formed with hooks 12a which draw the primary pawls radially inwards when the shaft is rotated. At its upper end the shaft supports a secondary pawl support 17 which is axially movable of the shaft between a spring stop 14 and a conical cam member 15 which are fixed to the spindle shell. Support ring 20 on the pawl support guides the secondary pawls to a radially outward position when the shaft is moved downwardly to bring the support 17 into engagement with cam 15. The axial and rotational movement of the shaft and the timing of these movements is controlled by a grooved rotatable cam member Fig. 2 (not shown).
Patent GB-1274477-A (GB)
Title: A method of, and pack for, dispensing two substances simultaneously under pressure
Inventor: MORANE BRUNO
IPC: B65D83/14
Filed: 1969-12-03
Abstract: 1,274,477. Pressurized dispensers. L'OREAL. Dec. 3, 1969 [Dec. 5, 1968], No. 59137/69. Heading F1R. In a pack for storing two substances separately and dispensing them under pressure as a mixture, one substance 13 is held in a container 11 slidable as a piston in an evelope 1 containing another substance 14. To actuate the pack, it is orientated with the valve downwards, and a pin 7 is operated to rupture the wall of a chamber 5 releasing pressuring fluid to the envelope causing the container 11 to slide towards the valve 2, a rigid rod 9 to displace a plug 12 and subsequently a cover 10, slidably mounted on the rod 9, to seal the empty container 11. Thereafter the mixture may be dispensed from a nozzle 3 by movement of the now closed piston 11 acted on by the pressure fluid.
Patent GB-1149310-A (GB)
Title: Nitric acid digestion of phosphates
IPC: C05B11/06
Filed: 1967-12-29
Abstract: 1,149,310. Calcium nitrate; ammonium phosphate. HOUILLERES DU BASSIN DU NORD ET DU PAS DE CALAIS. 29 Dec., 1967 [6 Jan., 1967; 12 Dec., 1967], No. 59185/67. Heading C1A. Ca(NO 3 ) 2  crystals are obtained by digesting natural Ca phosphate with HNO 3 , initiating crystallization of Ca(NO 3 ) 2  at 18-26‹ C. in the presence of seed crystals, allowing the crystals to grow, separating off large crystals, separating small crystals from the mother liquor (optionally after a further crystallization) and recycling the small crystals as seeds. In Fig. 2, phosphate and HNO 3  are digested at 40-45‹ C. in vessel 1. The solution is passed to germination tank 7 maintained at 18-26‹ C. by cooling coil 8 supplied with water cooled at 9 by evaporation of liquid NH 3  from 10. The solution is then passed to growth tank 11 maintained at 8-16‹ C., large crystals are separated at 13 at 8-16‹ C., and the mother liquor and small crystals are passed to tank 18 maintained at - 2 to +8‹ C. for further crystallization. The suspension is separated at - 2 to +8‹ C. in decanter 15 and small crystals are fed into tank 7. Cooling fluid circulates in coils 12 and 19 and refrigeration unit 20. Mother liquor from 15 is saturated in tank 17 with NH 3  from 9. In Fig. 1 (not shown), tank 18 is absent, the suspension of mother liquor and small crystals from 13 is passed directly to decanter 15, and cooling coil 12 is supplied with NH 3  from 10 which is then combined with NH 3  from 9. Tank 7, separator 13, and decanter 15 are then all operated at 12-20‹ C.
Patent GB-1286560-A (GB)
Title: Electrophoretic photoresist composition
Inventor: BAKOS PETER
IPC: H01L21/00
Filed: 1970-12-22
Abstract: 1286560 Photosensitive compositions INTERNATIONAL BUSINESS MACHINES CORP 22 Dec 1970 [23 Dec 1969] 59629/70 Heading C3P [Also in Divisions C7 and G2] A photosensitive composition comprises an emulsion of an organic solution of a polychloroprene, a photosensitizer, a stabilizer and a polymeric binder and an aqueous solution of a wetting agent, N-methyl-2-pyrrolidene and a plasticizer. The composition may be electrophoretically deposited on an electrically conductive support and then image-wise exposed and developed to produce a resist on the support which may subsequently be etched. The polychloroprene and photosensitizer may be as disclosed in Specification 1,147,272, the stabilizer may be hydroquinone, the polymeric binder may be an epoxy resin, polyvinylcinnanate, polystyrene or an acrylic resin and the plasticizer may be triethanolamine or diallylisophthalate.
Patent GB-1281556-A (GB)
Title: Improvements in or relating to fluid valves, particularly fluid valve for vacuum installations
Inventor: POLYAKOV GEORGY FILIPPOVICH
IPC: F16K51/02
Filed: 1969-12-08
Abstract: 1281556 Valves INSTITUT FIZIKI POLUPROVODNIKOV SIBIRSKOGO OTDELENIA AKADEMII NAUK SSSR 8 Dec 1969 [20 Feb 1969] 59757/69 Heading F2V A valve for a vacuum installation comprises a closure member 1 co-operating with a seat 16, a bushing 5 with side projections 7 movable with the closure member, linear guides 8 in the valve body to receive the side projections 7, flats 12, 13 on the projections and on the body slanted at the same acute angle to the longitudinal axis of the valve, a lever 22 for moving the bushing in the linear guides 8, and a recess 11, beneath the linear guides in which the flats on the bushing may be rotated into engagement with those on the body by turning the lever about the longitudinal axis of the valve so that the closure member is pressed against its seat. A metal bellows 26 biases the closure member to half-open position and a key 32 prevents rotation of the valve stem when the bushing 5 is turned to cause the flats to force the valve against its seat. Initial movement of the valve towards its seat is produced by rotating levers 22 about their pivots 21. The valve body, bushing and stem are made of stainless steel and movable parts may be coated with cadmium or molybdenum disulphide to prevent seizure at high temperatures. The closure member is of copper alloy.
Patent GB-1283529-A (GB)
Title: Process for making tubular filaments of regenerated cellulose
Inventor: WOODINGS CALVIN ROGER
IPC: D01F2/10
Filed: 1968-12-20
Abstract: 1283529 Tubular filaments COURTAULDS Ltd 19 Dec 1969 [20 Dec 1968] 60676/68 Heading B5B Tubular filaments of regenerated cellulose are made by extruding a viscose, containing 6À5- 9À5% by weight of cellulose, 5À0-7À0% by weight of caustic soda, 3À0-4À0% by weight of anhydrous sodium carbonate, and 0À75-2À0% by weight of polyethylene glycol, based on the weight of cellulose, and heeving a salt figure of 12 to 18, into a spinning bath, containing 8-10% by weight of sulphuric acid, 1À0-3À0% by weight of anhydrous zinc sulphate, and 20À0- 26-0% by weight of anhydrous sodium sulphate, at a temperature of 25 to 45 C., the filaments formed being directed along an immersion path of a length between 30 and 185 cms., and then stretched by at least 40%. The viscose used in the process may have a concentration in carbon disulphide of 33 to 50% by weight based on the weight of cellulose, and a ball fall viscosity of 30-180 seconds at 18 C. The stretching operation is suitably carried out in a hot aqueous bath containing about 2% by weight of sulphuric acid, at a temperature of 95 C., and the filaments may be stretched in the bath to a value approaching the stretch at which the filaments break, preferably about 10% below that degree of stretch. In this way filaments having an initial wet modulus of up to 10 at 2% extension and up to 12 at 5% extension may be obtained, and examination of the cross-section of such filaments shows that 90% of the filaments by number have not collapsed to the flat state. An example of the process is given.
Patent GB-1336430-A (GB)
Title: Automatic dialling device
IPC: H04M1/276
Filed: 1970-12-23
Abstract: 1336430 Automatic dialling equipment MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 23 Dec 1970 [29 Dec 1969 20 Nov 1970 4 Dec 1970 15 Dec 1970(4)] 61270/70 Heading H4K [Also in Divisions G4 H1 and F2] An automatic dialling device has the dialling impulses stored on a wide magnetic tape which are replayed through a magnetic head 138 supported on bars 154, 155 and driven by belt 150 from a Geneva motion. Selection of the track is made by depressing a key on keyboard 224, the track selector mechanism 356 runs until the position detector indicates that the head is aligned with the correct track and a brake is then applied to the mechanism. At this time the device can either have impulses recorded on the tape or be made to replay previously recorded impulses as determined by the position of switch 260 set by knob 252. The tape feed drive motor 8 drives the rollers 110 to feed tape 136 under head 138 until a cam operates a microswitch to operate electromagnet 30 and reverse the tape drive so that a rapid rewind is achieved. Electromagnet 82 also operates to allow the switch cam to complete its travel and stop the rewound tape at its starting point. The rollers 110 are interconnected by a tensioning arrangement and a movable pad arrangement is used to improve head contact during recording or replay and is retracted during rewind. The tape assembly S is readily removable from the device casing and the keyboard can be positioned remotely from the device proper. A speaker circuit is provided so that the response of the called party can be heard before the handset is lifted. An additional resetting button is provided on the keyboard to return the device to the starting condition. Provision is made to prevent erroneous transmission of pulses when power is switched on.
Patent GB-1207220-A (GB)
Title: Paper coating and coated paper
IPC: D21H19/38
Filed: 1968-12-24
Abstract: 1,207,220. Coated paper. CHAS. PFIZER & CO., Inc. 24 Dec., 1968 [3 July, 1968], No. 61470/68. Heading B2E. [Also in Division C4] Paper is coated with a composition comprising the product of reacting aluminium sulphate wish calcium carbonate in an aqueous medium. The product is a pigment consisting of hydrated calcium sulphate and aluminium hydroxide or alumina gel. The composition may also contain satin white or clay pigments, an adhesive such as starch, casein, protein or a synthetic latex, a polyalkylene glycol, aluminium or calcium stearate, alginates, and sodium metaphosphate. A single coating containing the pigment of the invention, clay, satin white and an adhesive may be applied. Alternatively, a primer containing the pigment of the invention and adhesive, with or without satin white, may be followed by a coating containing clay and adhesive and optionally the inventive pigment. Conventional coating methods, e.g. air knife, roller, or trailing blade methods are used, the latter being exemplified.
Patent GB-705728-A (GB)
IPC: A44B19/60
Abstract: 705,728. Making releasable fasteners. LIGHTNING FASTENERS, Ltd. Nov. 28, 1952 [Dec. 4, 1951], No. 28386/51. Classes 83 (2) and 83 (4). [Also in Group XXV] Shearing.-A machine for making top stops and attaching them to stringers of sliding clasp fasteners comprises means adapted intermittently to feed wire or strip material 20 to a shearing position, punch means 6 adapted to reciprocate to cut-off a predetermined length of material,to form the length of material about an anvil 32 to produce a substantially U-shaped element, and then to transfer the element to a clamping position, and means adapted to clamp the element on t6 a stringer tape, the anvil forming part of a pivotally mounted lever 30 and the punch means being adapted to tilt the lever as it transfers the element to the clamping position,. whereby the anvil is removed from the path of the punch means. As shown, a wire 20 is fed by two rollers 21, 22 into a channel 23 and thence across a shearing position in the machine. One of the rollers 22 is indirectly driven by a ratchet wheel 24 which is moved by a pawl 26 connected by a bell crank lever- 27 and a rod 28 to an adjustable driving plate 29 on a cam shaft 14- which is connected to a driving motor through a one-revolution clutch. Thus for every revolution of the cam-shaft, the wire is advanced a predetermined amount. A length of the wire 20 to form the top stop is sheared by the punch 6 which is reciprocated in a channel by the cam shaft 14. A spring 15 mounted on a peg 16 holds the punch against its cam. After the length of wire has been sheared, further movement of the punch bends the length of wire to the U-shape by engaging it with the anvil 32, FigÀ 5. The anvil 32 is part of the pivoted lever 30 which is urged by a a spring 36 so that normally the anvil is in the path of the punch 6. After the length of wire has been bent to U-shape the anvil is removed from the path of the punch by the engagement of a cam 'block 33 on the punch with a trip portion 34 on the lever. When the punch 6 reaches the top of its travel, the beaded edge of a fastener stringer is inserted in the U-shaped length of wire by hand and two clamping tools are then caused to move transversely to bend the U-shaped length of wire about' the edge of the stringer, The clamping tools are moved by two pivoted levers 17 which are actuated through a sliding wedge member 18, by a cam on the cam-shaft 14. The machine is arranged to stop when the punch is in its highest  position so that the stringer tape can be inserted and when it is restarted it then goes-through a cycle of clamping the length of wire to the stringer tape, and shearing and bending the next length under the control of the cam-shaft 14.
Patent GB-718416-A (GB)
Abstract: 718,416. Electrically igniting burners. WALLSEND SLIPWAY & ENGINEERING CO., Ltd. Feb. 27, 1952, [Jan. 9, 1951.] No. 607/51. Class 75 (3). An electric igniter for a burner incorporates a heating unit comprising a coil 19 of resistance wire wound on an insulating core 20, said unit being detachably fitted to one end of a tubular shaft 24 having a rod 25 disposed coaxially therein, the tube 24 and rod 25 serving as current conductors for the coil 19, one end of the latter being connected to an annular contact member 21, and the other end of the coil 19 being connected to a conductor 22 passing through the core 20 and terminating in a contact pad 23 abutting against an end of the rod 25, and the shaft 24 has screwed thereto a threaded plug 26 on which is threaded a sleeve 27 having a shoulder 28 engaging the annular contact member 21. Thus, when the sleeve 27 is screwed on to the plug 26 the pad 23 is brought into contact with the end of the rod 25, which is formed as a pad 31. The coil 19 is protected by a cage comprising bars 29 extending between the sleeve 27 and a ring 30. For manual operation the shaft 24 may be provided with a handle incorporating a switch actuable by a push button or trigger. The igniter may, alternatively, be mounted in a guideway in a framework attached to a furnace for movement by an electric motor into and out of its operative position for igniting a burner. The latter may be fixed or similarly movable by an electric motor. When the burner fuel is ignited the flame may actuate a heat or light responsive device to switch off the supply of current to the igniter coil and to energize the electric motor to retract the igniter. If after lighting the burner should be extinguished, then the heat or light-responsive device cuts off the fuel supply to the burner and causes the igniter to advance into the furnace. According to the Provisional Specification the igniter may embody a resistance wire wound on a threaded fused silica tube, the ends of the resistance wire being welded to end caps, e.g. of heat resisting steel, the caps being shaped to serve both as resistor supports and as electrical connections and the parts being cemented together to form a unit for detachably mounting in a handle.
Patent GB-2002845-A (GB)
Title: Fastening a buffer strip to a carrier wall
IPC: F16B21/20
Filed: 1978-08-09
Abstract: A resilient buffer strip (1) is mounted on a carrier (2) by integral pins (3) passing through holes in the carrier and secured by apertured spring plates (4) encircling portions (8) of the pins using a mounting apparatus which includes gripping arms (10) to an end portion (7) of each pin in turn and to stretch the pin, and pneumatically operated rams (16, 17) to press the spring plate over the pin and around the portion 8 of the pin. The plates are supplied from a rolled strip (42), of successively connected plates from a drum (41) by a feed ratchet (35) also pneumatically operated through control means (24) for the rams. <IMAGE>
Patent GB-2028280-A (GB)
Title: Apparatus for the periodical feed of a packing material web
IPC: B65B41/16
Filed: 1978-08-15
Abstract: An apparatus for the periodical feed of a packing material web by means of a lower, fixed, driven, transport roller (3) and an upper, raisable and lowerable conveyor roller (4) which is connected by bellcrank lever (5; 8) to a cam drive (12), the bellcrank lever having one arm (5) mounted on a hollow shaft (6) which is clamped to one end of a torsion bar (7) to the other end of which there is secured the other arm, a roller lever (8). The arm (5) carrying the roller (4) is mounted angularly adjustably on the torsion shaft (7) by clamp (9) connecting the torsion shaft (7) with the hollow shaft (6). <IMAGE>
Patent GB-2031722-A (GB)
Title: Decorative bed surround
IPC: A47C19/02
Filed: 1978-10-18
Abstract: A surround to conceal the frame and legs of a bed comprises three decorative panels (1) (2) (3) detachably connected together by locks (6), at adjacent ends of the panels, which are releasably secured together so that the panel form three sides of a rectangle. A detachable stretcher (10) joins panels (1) and (2), which lie along the sides of the bed to keep the surround rigid. Alternative connections comprising hinges with removable pins and hooked bars can be used in place of the blocks and stretcher. <IMAGE>
Patent GB-2006923-A (GB)
Title: Universal-Joint Arrangement for Drive Shafts
IPC: F16D1/076
Filed: 1978-10-25
Abstract: A universal-joint arrangement for a drive shaft comprises a cruciform joint 10 whose respectively opposite journals are engaged by two bifurcated joint members with the interposition of journal-bearing sleeves, the joint member on at least one side of the joint comprising two blocks 14 located opposite to each other and positively connected to a two-armed shaft flange 15 by tooth systems 17 of, for example, trapezoidal teeth on each block and on the flange, the tooth systems are located in four regions and extend at least substantially crosswise with reference to the longitudinal axis of the joint, the teeth of respective regions being directed substantially towards the said axis and parallel to each other. The toothed regions on each block and on the respective arm of the flange are suitably at an angle of substantially 60 DEG  to 90 DEG  to each other. <IMAGE>
Patent GB-2011988-A (GB)
Title: Improvements relating to partitioning
IPC: E04B2/78
Filed: 1978-11-03
Abstract: In partitions made from metal frames, clad with metal panels or plasterboard sheets the frame elements (12) are made from sheet metal and are of box section, with rolled joints 13, and the panels or sheets are located and secured by clips (17, 27). The clips (17) may be separate, as at (17), Fig. 4, and cam into the frame elements (12) along panel or sheet edges, around which they hook, or they may be secured to the frame elements as at (27), Fig. 6, when the panels (33) have slots (38-40), with a cam edge (39) whereby they are hooked on to hook portions (29) of the clips (27). <IMAGE>