baber/WOPTO huggingface dataset:
Patent GB-1345418-A (GB)
Title: Lamination of sheet materials
IPC: B32B37/18
Filed: 1971-04-19
Abstract: 1345418 Laminating method and apparatus GENERAL BINDING CORP 19 April 1971 [17 April 1970] 21634/71 Heading B5N A method of laminating together a stack of sheets comprising at least one sheet of heat sealable plastics material and a second sheet to be laminated thereto comprises the steps of assembling the stack, and feeding the stack from the nip of a pair 13a, 13b of feed rollers through a heating device to the nip of a pair 14a, 14b of laminating rollers without contact between the stack and the heating device 60, 61, the rate of feed of the stack at the feed rollers being substantially equal to that at the laminating rollers. An apparatus for effecting the method comprises a pair 13a, 13b of feed rollers, a pair 14a, 14b of laminating rollers, a heating device 60, 61 positioned between and closely adjacent the two pairs of rollers so that a stack of sheets is fed from the nip of the feed rollers through the heating device to the nip of the laminating rollers without contacting the heater device and a drive arrangement for driving the laminating rollers and at least one of the feed rollers so that the rate of speed of the stack at the feed rollers is substantially equal to that at the laminating rollers. The apparatus which may be sufficiently small to use in the lamination of identification cards comprises a feed table member 11 and an output table 12, the feed rollers 13a and 13b and the laminating rollers 14a, 14b respectively being carried in bearing blocks 43 and 44, the upper rollers 13a and 14a being downwardly biased by spring 45. The apparatus is driven by electric motor 52 and the heating means is provided by heating elements 60 and 61 positioned by positioning plates 66, 67, 68 and 69 of thermally insulating material held by four identical springs 70. The stack of material to be laminated may comprise a pair of sheets of the heat sealable plastics material having the second sheet sandwiched therebetween. In a preferred embodiment, the or each sheet of heat-sealable plastics material comprises a polyester, e.g. polyethylene terephthalate laminated to a heatsealable plastics material, e.g. polyethylene. In a preferred embodiment, the materials to be laminated are enclosed in a folder of a heat conducting material, e.g. aluminium during the lamination.
Patent GB-848466-A (GB)
Title: Process for the production of diborane
IPC: C07F5/00
Filed: 1957-07-09
Abstract: A boron trihalide-trialkylamine compound is formed as a secondary product in the preparation of diborane by reacting a borazane of general formula BH3 NR3, where R is an alkyl, alkaryl, or aryl radical, with a boron halide, boron halide etherate, or aluminium trichloride.  In one form of the process an aluminium trialkyl is prepared from aluminium, hydrogen, and an olefine; this trialkyl is reacted with boron fluoride or a compound of boron fluoride and a tertiary amine to form a boron trialkyl, and this trialkyl together with a tertiary amine is heated with hydrogen under pressure to yield a by-product paraffin and a trialkyl borazane, which is in turn reacted with boron fluoride to form diborane and a boron fluoride-trialkylamine compound, which latter may be recovered and employed in the preparation of further boron trialkyl.  Specification 770,707 is referred to.ALSO:Diborane is produced by reacting a borazane of general formula BH3NR3 with a boron halide or halide etherate, or aluminium trichloride.  R may be alkyl, aralkyl or aryl; triethyl, dimethyl cyclohexyl, and dimethyl phenyl borazanes are specified.  The reaction may be effected at a slight negative pressure and in the presence of a solvent which may be an ether, hydrocarbon or tertiary amine, specifically, ether and xylene. Boron fluorides or chlorides or boron fluoride etherates or thioetherates may be employed.  In a preferred procedure, the trialkyl borazane reactant is prepared by treating a boron trialkyl with hydrogen under pressure in the presence of a tertiary amine.  The borazane so produced on treatment with boron trifluoride gives the diborane product and a boron trifluoride trialkylamine compound.  The latter may be reacted with aluminium trialkyl to form boron trialkyl and aluminium fluoride. Specification 770,707 is referred to.
Patent GB-1010087-A (GB)
Title: Retractable undercarriages for aircraft
Inventor: PERDUE JACK
IPC: B64C25/34
Filed: 1963-05-30
Abstract: 1,010,087. Aircraft undercarriages. ELECTRO-HYDRAULICS Ltd. May 26, 1964 [May 30, 1963], No. 21758/63. Heading B7G. A retractable undercarriage for aircraft comprises a beam, at least one pair of wheels consisting of an inboard and an outboard wheel, each wheel being mounted respectively on a mounting member for pivotal movement relative to the beam, which is hingedly connected to the aircraft about an axis parallel to the longitudinal axis of the aircraft, and means for retracting and lowering the undercarriage, the arrangement being such that, on retraction, the beam is pivoted from a substantially horizontal position to a substantially vertical position, thereby causing each inboard wheel to swing downwards and inwards into a substantially horizontal position and each outboard wheel to swing upwards and inwards into a substantially vertical position. In Fig. 1 the aircraft fuselage and the envelope into which the undercarriage is to be retracted is indicated by dotted lines. A beam 1 is mounted on the aircraft at 2 for pivotal movement under the control of an hydraulic jack 3 also mounted on the aircraft at 5. Bell-crank members 7 and 12 are pivotally mounted on the beam to support the axles of wheels 6 and 10 respectively, arms 15 and 18 of the bell-cranks being connected by links 14, 16 to fixed points 5, 17 on the air frame. In the extended position shown in Fig. 1 locks in the jack 3, or elsewhere, hold the beam 1 down and movement of the wheels is resisted by tension in link 14 and compression in link 16. Extension of jack 3 rotates beam 1 to the position of Fig. 2, the links 14 and 16 constraining the wheels 6 and 10. to rotate to the substantially horizontal and vertical positions shown. Other linkwork arrangements are described together with a preferred constructional embodiment for a four-wheel bogie undercarriage. Specification 956,042 is referred to.
Patent GB-260385-A (GB)
Title: Improvements in and relating to splash guards for heavy motor vehicles and the like
IPC: B60B7/00
Filed: 1925-09-02
Abstract: 260,385. O'Brien, F. P. Sept. 2, 1925. Mudguards rotating w i t h wheels each comprise a rubber ring a held between the edges of a U-shaped metal ring b. The ring a is formed with cuts c, as shown in Fig. 1, and has embedded metal strips d. The rubber ring a is held in place by a bead g which fits an annular recess f in the ring b, and holes e in the ring b are provided for the attachment of the guard to a wheel.
Patent GB-1515565-A (GB)
Title: Star-shaped magnetic core elements
IPC: H01F30/12
Filed: 1975-05-21
Abstract: 1515565 Transformers ETABS MARTIN ET CIE 21 May 1975 [21 May 1974 18 Oct 1974 27 March 1975] 21908/75 Heading H1T [Also in Division B3] A star-shaped magnetic core element for a poly-phase transformer comprises at least one endless loop (1, Fig. 6a or 31, Fig. 3) of magnetic material, the loop being included in at least two legs of the star and a portion of the loop being folded upon itself in each of the two legs. As shown the core element is formed from a single loop 1 or three loops 31 wound from strip and pressed into shape between dies and baked, a lubricant such as grease, oil or talc being used between the layers to facilitate the deformation. A yoke 5 is clamped on one or each side of the star to close the magnetic circuit between the legs.
Patent GB-956642-A (GB)
Title: Process for the production of cold-hardening reaction lacquers
IPC: C08F20/62
Filed: 1962-06-06
Abstract: Cold-hardening reaction lacquers are produced by partially polymerizing methylmethacrylate in the presence of a chain-transfer agent and a catalyst and in the presence of allyl acrylate or allyl methacrylate until a syrupy initial polymer is formed which may then be hardened.  The syrupy initial polymer may before being applied to the surface to be coated, be brought to a suitable viscosity by adding monomeric methylmethacrylate. The initial polymerization may be effected in the presence of plasticising monomers or mixtures thereof such as ethyl-, butyl-, decyl- or ethylhexyl-acrylate and ethylhexyl-, butyl- or decyl-methacrylate.  Preferably 2 to 20% by weight of the allyl compound, and up to 20% by weight of the plasticising monomers, based on the monomer mixture, are used.  In the initial polymerization the catalyst may be azodiisobutyric acid dinitrile and the chain-transfer agent may be a mercaptan or an ester of mercaptoacetic acid. The preferred catalyst systems for the hardening of the initial polymers are (a) a peroxidic compound and a tertiary amine which preferably contains at least one aromatic radical bonded directly to the nitrogen atom and (b) a diacyl peroxide, a monofunctional or a polyfunctional mercaptan and/or esters of mercaptoacetic acid and a tertiary anine which comtains at least one aromatic radical bonded directly to the nitrogen atom. Lists of peroxides, amines and mercaptans are given.  Plasticisers, cross-linking agents, dye-stuffs, fillers e.g. highly dispersed metal or metalloid oxides which have been hardened pyrogenically, ultra-violet stabilisers, and paraffin or wax, may be added to the reaction lacquers before hardening.  In the examples (1) methyl methacrylate is polymerized with allyl methacrylate in the presence of glycol dimercaptoacetate and azodiisobutyric acid dinitrile and the syrup obtained after dilution with monomeric methylmethacrylate is hardened with diisopropylol-p-toluidine and benzoyl peroxide paste (in dibutyl phthalate).  (2) methyl methacrylate, ethylmethacrylate, ethylhexyl methacrylate and allyl methacrylate are copolymerized and before hardening as in Ex. (1), paraffin may be added; (5) methylmethacrylate, ethylmethacrylate, ethylhexylmethacrylate and allyl acrylate are copolymerized.
Patent GB-1340126-A (GB)
Title: Spectrally sensitized silver halide photographic emulsion and electrophotographic material
IPC: G03C7/26
Filed: 1971-04-19
Abstract: 1340126 Trimethine dyes FUJI PHOTO FILM CO Ltd 19 April 1971 [16 Feb 1970] 21940/71 Heading C4P [Also in Divisions G2-G3 and H1] A sensitizing trimethincyanine dye is represented by formula in which Z and Z<SP>1</SP> each represent the atoms necessary to complete a benzothiazole nucleus, a benzoselenazole nucleus or a naphthothiazole nucleus, R and R<SP>1</SP> each represent alkyl, e.g. ethyl, n-propyl; carboxyalkyl, e.g. #-carboxyethyl, γ-carboxy butyl, #-carboxybutyl and #- carboxypentyl; or sulphoalkyl, e.g. γ-sulphopropyl, γ-sulphobutyl and #-sulphobutyl, at least one of R and R<SP>1</SP> being carboxy- or sulphoalkyl, X- is an anion and n is 0 when an intramolecular salt is formed or 1. Z and Z<SP>1</SP> may be substituted by Cl, Br, CH 3 , CH 3 O, C 2 H 5 O, OH and phenyl.
Patent GB-1002827-A (GB)
Title: Improvements in resiliently mounted mechanisms
Inventor: VAZZANO PHILIP
IPC: G11B33/08
Filed: 1962-06-07
Abstract: 1,002,827. Stud and socket fastenings. WARWICK ELECTRONICS Ltd. June 7, 1962, No. 22050/62. Heading E2B. [Also in Division G5] A mechanism is mounted for movement on a support 25 between a first unlatched operating position and a second latched position wherein said mechanism is held against movement, resilient means 26 being disposed between the support and mechanism whereby the mechanism is resiliently supported for operation relatively free of vibration in said first unlatched position and hold down means being provided which include a resilient catch 37 and a latch member 41 extending towards said catch in said first unlatched position, one on said mechanism and the other on said support for latching said mechanism and support together in said second position in response to movement of said mechanism and support towards each other to engage the latch member with the catch. In the construction shown the mechanism is the motor board of a gramophone. The resilient catch is a hairpin spring carried on a catch plate 31 by a pin, the legs of the spring being maintained in spaced relationship by a pair of turned down lugs 39, 40 struck from the plate. The latch member is mounted on the motor board 15 to overlie an opening 34 in the catch plate 31 and it has a tapered lower end 42 and a pair of notches 43, 44 the tapered end spreading the legs of the spring until they can engage in the notches. To release the latch member from the spring a member 50 is provided. This is attached to the latch member by means of a pin 51 which passes through a slot 52 in the member 50. The member 50 has a pair of cam surfaces 53, 54 which can be brought into engagement with the legs of the spring by moving the member 50 downwardly relative to the latch member so that the cam surfaces spread the legs of the spring apart and release them from the notches 43, 44 so that the latch member can be moved upwardly. Downward movement of the latch member is effected manually by pressure on a flange 61 which protrudes through an aperture in the motor board 15. The member 50 has a central portion 62 which passes between the legs of the spring and at its lower end a second pair of cam surfaces 63, 64 which act to prevent complete withdrawal of the motor board from the support 25 unless sufficient force is exerted to spread the legs of the spring apart. Normally two hold down means are provided, one on each side of the motor board and there are a plurality of springs 26.
Patent GB-1058594-A (GB)
Title: Improvements relating to refuse vehicles
Inventor: PALMER DENNIS GUY
IPC: B65F3/20
Filed: 1963-06-04
Abstract: 1,058,594. Charging refuse vehicles. EAGLE ENGINEERING CO. Ltd. May 26, 1964 [June 4, 1963], No. 22073/63. Heading B8E. Refuse is fed into a main chamber 19 of a refuse vehicle (not shown) from a secondary chamber 17 by a displacing member 21 after being crushed by a member 20. The displacing member 21 runs in guides 41 and is pivotally connected to a pair of links 24 at 25, the links 24 being pivotally connected to a pair of parallel levers 23 themselves pivoted on a main shaft 27 about which they may be rotated by a pair of rams 30. The crushing member 20 is pivotally connected to the levers 23 at 22 and runs in curved guides (40), Fig. 3 (not shown). Refuse introduced into the secondary chamber 17 through an opening 15 is crushed against a floor 39 by the member 20 on retraction of the ram 30, member 21 being withdrawn to allow this. Consequent extension of the ram 30 withdraws member 20 and causes member 21 to feed the crushed refuse into the main chamber 19 through an opening 18. The leverage applied to the crushing member 20 is arranged to be less than that applied to the displacing member 21 by arranging pivot 22 farther from shaft 27 than pivot 26.
Patent GB-638208-A (GB)
Title: Lead wire construction and method of sealing
IPC: H01J5/32
Filed: 1947-08-08
Abstract: 638,208. Glass-to-metal seals. SYLVANIAELECTRIC PRODUCTS, Inc. Aug. 8, 1947, No. 22079. Convention date, July 12, 1946. [Class 36] A conductor 5 is protected from excessive heat during sealing into the tip of a glass envelope 1 by a friable insulating sheath 9, one end of the sheath being embedded in the outer end of the tip, and the inner end of the tip being sealed directly to the conductor. The sheath 9, which is preferably ceramic is held in position on the conductor 5 and within the exhaust tube 7 of the envelope 1 by a stop 10. The envelope is evacuated and the exhaust tube heated, causing the glass to flow about the conductor 5 and one end of the sheath 9. The lower parts of the tube 10 and sheath 9 are then broken off, leaving a reinforced seal, Fig. 4.
Patent GB-170414-A (GB)
Title: Improved method of, and apparatus for, conveying electric current to a movable truck or the like
IPC: A01B3/74
Filed: 1920-07-24
Abstract: 170,414. Lamb, H. R., and Huartson, H. July 24, 1920. Laying or guiding cables on or off during winding or unwinding.-In an electrically-driven truck of the type in which the current is supplied from a generating station through a flexible cable which is automatically paid out from or gathered in on a drum carried on the truck, means are provided for ensuring that the cable is wound on the drum in a single smooth layer. The pulley which lays the cable on and off the drum d, is mounted on a bracket m having two bosses, the upper of which slides on a plain rod n and the lower being internally threaded and working on a screwed rod p mounted in bearings in the framework. The rod p is rotated through gearing from the drum shaft, the gearing being so arranged, in conjunction with the diameters of the drum and cable and the pitch of the thread on the rod p. that the pulley j is traversed across the drum a distance equal to the diameter of the cable for every revolution of the drum. The drum is preferably of such a width that the whole length of the cable may be coiled on it in one layer.
Patent GB-460901-A (GB)
Title: Improvements in and relating to the ventilation of closed rooms
IPC: E03F5/08
Filed: 1935-08-06
Abstract: 460,901. Ventilating rooms. STAUBER, J. Aug. 6, 1935, No. 22137. Convention date, Aug. 6, 1934. [Class 137] For prevention of the entry of poisonous gases into, and for ventilating closed rooms, air is drawn by suction from the ground, sprayed with water, and supplied under pressure to the room. A pit 1 is excavated in the earth, and the bottom and side walls lined with wire netting or with cement 2<1> having air holes, the top being covered in. A water atomizing device 5 is provided, and the air is sucked through the surrounding earth by a pump 7, which delivers the purified air to the room through pipe 9.
Patent GB-233958-A (GB)
Title: Improvements in and relating to cuff links
IPC: A44B5/02
Filed: 1924-09-19
Abstract: 233,958. Kennedy, A. J. Sept. 19, 1924. Sleeve-links.-The separable cuff-buttons A, B are hingedly coupled together to pivot about a single axis so that while in the angular position which they assume when in wear they are locked against separation, they may be turned relatively to one another into another position in which they may be separated. The buttons are each provided with flat shanks a<2>, b<2> terminating in hinge connections a<3>, b<3>, the part b<3> containing a spring-pressed ball b<4> which may be forced into or out of a seating in the part a<3> when the shoulder b<8> on the connection b<3> is not in engagement with the slotted portion a<6> of the connection a<3> and so does not' prevent the button B from being tilted about the lower end of the. connection into the position shown in Fig. 5. When in wear on the cuff, the slot a<6> is engaged by the projection b<8> and separation of the buttons is prevented. The buttons are separated by turning them about their hinge connection until the shoulders a<4>, b<7> abut, when this point is used as a fulcrum for forcing the ball b<4> out of its recess in the connection a<3>.
Patent GB-1323038-A (GB)
Title: Treatment of dichloroethane pyrolysis product
IPC: C07C17/38
Filed: 1971-04-19
Abstract: 1323038 Chlorohydrocarbon purification SOLVAY ET CIE 19 April 1971 [20 Feb 1970] 22211/71 Heading C2C  The crude gaseous product resulting from the pyrolysis of 1,2-dichloroethane to vinyl chloride is cooled under superatmospheric pressure to give a gaseous phase and a liquid phase, the liquid phase is treated with 0À01 to 5% wt. of chlorine with respect to the weight of undecomposed 1,2-dichloroethane, and vinyl chloride and 1,2-dichloroethane are then separated from the mixture. Cooling may be effected in two stages, the first including contact with liquid 1,2- dichloroethane. A chlorination catalyst, e.g. ferric chloride, may be used. Part of the chlorine-treated liquid phase may be used to wash the gaseous phase, the wash liquid then being re-chlorinated. The chlorinated mixture may be separated into its constituents by successive distillations. 1,2-Dichloroethane may be recycled to the pyrolysis step.
Patent GB-156070-A (GB)
Title: Means for electrically driving the bowls of centrifugal separators
IPC: B04B9/08
Filed: 1920-07-27
Abstract: 156,070. Melotte, A. Dec. 26, 1919, (Convention date]. Driving; suspending.-The suspended bowl 1 of a centrifugal separator is driven by an electric motor 7 located in the head of the apparatus. The motor drives the bowl through gearing 5, 4 and its armature spindle is supported in a bearing 12 in the cover 11 and in a bearing on an angle member 13 fixed to the cover. The angle member 13 supports the motor field magnets 14 and the brush-holders 15. Terminals on the member 13 are connected to the brush-holders and to terminals on the cover. The motor may be placed horizontally and drive the bowl through bevelgearing.
Patent GB-1153324-A (GB)
Title: Sustained Release Tablets
Inventor: BELL JOHN HOWARD
IPC: A61K31/295
Filed: 1966-05-19
Abstract: 1,153,324. Sustained release tablets, FISONS PHARMACEUTICALS Ltd. 28 June, 1967 [19 May, 1966], No. 22327/66. Heading A5B. A sustained release tablet comprises granules formed by dispersing a medicament in a matrix of shellac. In examples, tablets containing ferrous sulphate and/or ferrous ascorbate are prepared, as well as two-layer tablets containing ing ferrous sulphate in one layer and ascorbic acid in the other. Conventional additives may also be present.
Patent GB-614983-A (GB)
Title: A process for the manufacture of 3:4-di-(ú­-hydroxyphenyl)-hexanediol-3:4
IPC: C07C39/12
Filed: 1946-07-27
Abstract: p-Hydroxy - propiophenone is reduced in alkaline solution to 3 : 4-di-(p-hydroxy-phenyl)-hexanediol-3 : 4 by means of an alkali metal amalgam which is being produced and continuously regenerated by electrolytic means during the course of the reduction.  A detailed example is given.
Patent GB-422225-A (GB)
Title: Improvements in variable graphs or diagrams
IPC: H03J1/04
Filed: 1933-08-11
Abstract: 422,225. Charts. RICHARDSON, E., 17, Boscombe Road, Shepherd's Bush, London. Aug. 11, 1933, No. 22487. [Class 146 (ii)] A variable graph device comprises a base having marked thereon co-ordinates and provided with one or more lengths of flexible and extensible material fixed at two convenient points to the base in suitable relation to the co-ordinates, whereby the material may be displaced intermediate its ends to various positions on the base to give the desired graph in the form of a plurality of straight sections joining the points to which the material is displaced. The material c is in the form of a strand of rubber thread, a fine metallic spring, or the like and is attached to a base a, provided with co-ordinates b, by terminal pins d. Removable pins e are inserted at known points on the curve and the elastic material is stretched round them, the portion between the pins thus reproducing the desired graph. The pins e may be housed in a tape stuck to the back of the board; alternatively threads may be attached to the elastic material at the required points and secured at their free ends, preferably outside the confines of the graph surface, either by drawing pins, or by passing the ends of the threads through holes in the board. The graph sheet may be mounted on rollers, when each section may be provided with its own elastic strand, or a common strand may be employed. The board a may be foldable or in the form of a book cover with the graph ruling and the elastic mounted on one inside surface of the cover, and the co-ordinates may be printed on a number of L-shaped strips mounted between the cover, so that graphs of various subjects may be studied. A second smaller auxiliary elastic may be mounted on the board over another pair of co-ordinates to permit more accurate study of any part of the main graph. The device is described in connection with a graph for accurate tuning of a condenser in a wireless set.