baber/WOPTO huggingface dataset:
Patent GB-1092016-A (GB)
Title: Perfluoro (2-methylene-4-methyl-1,3-dioxolane) and polymers thereof
IPC: C07D317/42
Filed: 1966-04-27
Abstract: The invention comprises homopolymers of the compound <FORM:1092016/C3/1> and copolymers of this compound with free radical polymerizable ethylenically unsaturated monomers.  Exemplified comonomers are: tetrafluoroethylene, hexafluoropropylene, perfluoromethyl perfluorovinyl ether, perfluoropropyl perfluorovinyl ether, ethylene, the perfluorodivinyl ether of perfluoroethylene glycol, perfluoroethylene bis (divinyl ether), styrene, methyl methacrylate, acrylonitrile, acrolein, vinyl acetate, acrylic acid and propylene.  Polymerization is in bulk or in solution using conventional and fluorinated free-radical catalysts.ALSO:The invention comprises the compound <FORM:1092016/C2/1> which is prepared by contacting the compound <FORM:1092016/C2/2> in an inert atmosphere and at 150-400 DEG  C. with an anhydrous alkali or alkaline earth metal oxygen-containing salt or an oxide of a metal or metalloid from Groups IIa, IIb, IIIa or IVa of the Periodic Table (U.S. usage). The above starting material is prepared reacting hexafluoropropylene epoxide with aromatic carbonyl compound such as benzophenone to give perfluoropyruryl fluoride which is then reacted with hexafluoropropylene epoxide to form an adduct which is heated to 100-200 DEG  C.  Trifluoroacetyl fluoride is obtained as a by-product in the preparation of perfluoropyruryl fluoride.
Patent GB-711433-A (GB)
Title: New dyestuff intermediates and process for colouration therewith
Inventor: FRANCE HAROLD
IPC: C07D209/44
Filed: 1951-08-07
Abstract: The invention comprises 1,1 - bis - (alkylmercapto, hydroxyalkylmercapto or aralkylmercapto) - 3 - amino - isoindolenines which in one tautomeric form have the general formula <FORM:0711433/IV (b)/1> (in which R and R1 may be the same or different and are alkyl, hydroxyalkyl or aralkyl radicals), and their preparation by treating phthalonitrile with an alkyl, hydroxyalkyl or aralkyl mercaptan in the presence of an alkoxide or hydroxide of an alkali or alkaline earth metal or a strong organic base.  Alcohol is preferably used as reaction medium.  In Examples: (1) and (2) sodium is dissolved in methanol or ethanol, and ethyl mercaptan and powdered phthalonitrile are added, reaction then being carried out at 0-2 DEG C. for 72 hours; the product is 1,1 - bis - (ethylmercapto) - 3 - amino - isoindolenine; (3) ethyl mercaptan and phthalonitrile are similarly reacted in the presence of sodium in ethanol at 0-5 DEG  C. for 48 hours; (4) 1,1 - bis - (benzylmercapto) - 3 - amino - isoindolenine is prepared from phthalonitrile and benzyl mercaptan in the presence of sodium in methanol; (5) 1,1-bis-(butylmercapto)-3-amino-isoindolenine is prepared from phthalonitrile and n-butylmercaptan in the presence of sodium in methanol; and (6) 1,1-bis-(b -hydroxyethylmercapto) - 3 - amino - isoindolenine is prepared from phthalonitrile and monothioglycol in the presence of sodium in methanol.ALSO:Textile materials are coloured by applying a 1, 1-bis-(alkylmercapto, hydroxyalkylmercapto or aralkylmercapto)-3-amino-isoindolenine (see Group IV(b)) which in one of its tautomeric forms has the general formula <FORM:0711433/IV(c)/1> (wherein R and R1 may be same or different and an alkyl, hydroxyalkyl or aralkyl radicals) followed by heating the material, preferably in the presence of a metal compound, to form a phthalocyanine on the material.  In Example (7), bleached cotton cloth is padded with a solution of 1, 1-bis-(ethylmercapto)-3-amino-isoindolenine, dried, and baked at 150 DEG C.  The corresponding benzyl- or b -hydroxy-ethyl-mercapto compound may also be used.  In Example (8), cotton cloth is padded with a solution containing 1, 1-bis-(ethylmercapto)-3-amino-isoindolenine and the copper complex of disodium ethylenediamine tetra-acetic acid, dried and heated to 130-140 DEG C.
Patent GB-1018209-A (GB)
Title: Collars and other garments or parts thereof
Inventor: HULL ARNOLD WALTER
IPC: A41B3/00
Filed: 1963-05-10
Abstract: 1,018,209. Laminates. BONDINA (B.D.A.) Ltd. May 4, 1964 [May 10, 1963], Nos. 18636/63, and 11437/64. Heading B5N. [Also in Division A3] A composite interlining material for collars, cuffs &c. is made by needling an unsupported fleece of fibres on to a woven cotton scrim, saturating the laminate with an acrylic latex and drying it around a Palmer drier. The dried material is then further impregnated with acrylic latex and finally with an amino-formaldehyde resin.
Patent GB-1153331-A (GB)
Title: Improvements in or relating to Fluid Pressure Operated Braking Apparatus.
Inventor: FARMERY GEORGE KENNETH
IPC: B60T17/10
Filed: 1965-02-16
Abstract: 1,153,331. Brake actuator; warning devices. CLAYTON DEWANDRE CO. Ltd. 16 May, 1966 [16 Feb., 1965; 4 May, 1965 (2)], Nos. 6623/65, 18714/65 and 18715/65. Headings F2E and F2F. A brake actuator of the kind provided with a dual air supply so arranged that normally a pressure balance is established across one pressure responsive member 3 and another pressure responsive member 8 functions alone to exert braking effort, failure of either member or of their related air supply resulting in the other member remaining operative to produce the required braking effort, is characterized by the two pressure responsive members having an operative connection with an axially disposed brake operating mechanism and means 20 for connecting the said linkage to a hand brake lever or other means for independent manual operation of the brake. In the embodiment shown, air is admitted to the actuator at 14, 15 from a dual reservoir 17. The dual brake valve 19 may be of the form disclosed in Specification 1,010,942 or Specification 1,153,332. The first piston 3 is formed from two dished metal pressings welded together. In another embodiment (Fig. 4, not shown), a two-part piston (35) is described, the interior of which is vented to atmosphere through passages (38, 39). The diaphragm 8 may be replaced by a piston (Fig. 3, not shown). Warning devices.-A passage between the piston seals 23 vents the appropriate chamber to atmosphere should the respective seal fail: an indication of this is signalled to the driver through a warning device associated with the reservoir.
Patent GB-400893-A (GB)
Title: Improvements in or relating to the manufacture of pneumatic tyre covers
IPC: B29D30/00
Filed: 1933-07-01
Abstract: The process described in the parent Specification, according to which a tyre cover is heated in a mould until consolidated, and if desired partly vulcanized, and is then submerged in heated water under pressure to complete the vulcanization, is modified by producing the tread and carcase portions separately, the carcase being partly vulcanized, and the tread either partly vulcanized or raw but shaped, bringing the parts together, and vulcanizing by naked immersion in hot water.  The carcase may be formed on an air-bag or core and heated in a mould or in the open; the tread may be moulded as a whole, or formed of separate blocks pressed together.  The parts may be united prior to vulcanization, by pressing them together, with or without treatment of their surfaces with a rubber solvent, or the use of an adhesive.
Patent GB-660732-A (GB)
Title: Improvements in or relating to gramophone record playing devices
Inventor: TWEED CYRIL JOHN FRANCIS
IPC: G11B3/08
Filed: 1949-07-15
Abstract: 660,732. Supporting gramophone pick-ups. MARCONI WIRELESS TELEGRAPH CO., Ltd. March 27, 1950. [July 15, 1949] No. 18734/49. Class 40 (ii). In a gramophone record playing device, means for lifting and lowering the tone arm are interlocked with the volume control such that when the stylus is lifted from or lowered on to the record the volume control is at its minimum position. In one embodiment, Fig. 1, a cam-shaft 6 geared to the volume-control shaft 2 carries an eccentric cam 8 which serves to lift a bar 9, carrying pillars 10 which pass through bearings 11 and support a lifting bridge 12. In a second embodiment, Fig. 2 (not shown) the volume-control shaft carries an eccentric cam which presses against a flat spring connected to one end of the inner wire of a flexible cable, the other end being connected to a pivoted angle bracket which lifts the pivoted bearing of the tone arm so that a fixed bracket above the end of the tone arm beyond the pivoted point serves to lift the stylus from the record.
Patent GB-713342-A (GB)
Title: Process for de-gumming vegetable textile fibres
IPC: D01C1/02
Filed: 1951-08-09
Abstract: Vegetable textile fibres, such as are obtained after chemical retting of lengths of raw fibrous materials and which are still coated with a sheath of pectic substances and hemicelluloses in colloidal form, are degummed by submitting them to treatment with water containing a surface-active agent, than to treatment with an aqueous solution of an acid so as to flocculate and precipitate the colloid coating substances, and finally to rinsing with water. In a modification of the process, the two treatments are combined so that the fibres are subjected to the action of a single liquid containing the surface-active agent and the acid which is capable of flocculating and precipitating the colloids.  The lengths of raw fibrous materials are the crude stalks which have been submitted to green scutching to remove the greater part of the ligneous coating substances.  The treatment may be applied to fibres of ramie, flax, hemp, urena, ambary or jute.  The surface-active agent may be a sulphated oil (copra, castor or linseed), a sulphonated fatty acid or ester, a sulphonated or sulphated fatty alcohol such as sulphonated or sulphated lauryl alcohol, or hydroxy ethylamides of palm-nut oil acids.  The acid used may be organic or inorganic, e.g. acetic, sulphuric or hydrochloric.  In an example, the retted flax fibres are de-gummed by passing them first through a bath of water containing 0.5 per cent. by weight of a wetting agent consisting of a condensation product of oleic acid with the sodium salt of isethionic acid, and then through a bath of water containing 0.7 per cent. by weight of acetic acid.  In other examples retted flax, ramie and jute are passed through single treatment baths containing sulphoricinoleic acid and sulphuric acid, or lauryl sulphuric acid and hydrochloric acid, or ethyl pyridinium bromide and sulphuric acid.
Patent GB-670700-A (GB)
Title: Treatment of acid hydrocarbon gas mixtures
IPC: B01D53/52
Filed: 1948-07-13
Abstract: Gaseous hydrocarbons such as natural and refinery gases are freed from acidic impurities, viz. H2S,SO2 and CO2 by contacting with a solution containing a liquid "aliphatic" amine, water, and an organic water soluble diluent of lower viscosity than the amine, and heating and regenerating the rich solution for re-use.  "Aliphatic" amines are defined as those having the NH2 attached to CH2 which may be attached to aliphatic groups or to a saturated or unsaturated ring as in benzylamine.  Primary, secondary, and tertiary as well as mono-, di-and tri-amines are included.  Ethanolamines are particularly suitable.  Polyhydric alcohols or glycols or ethers thereof may also be included in the solutions.  The diluent, which must be selected to have a lower viscosity than the amine or polyhydric alcohol or ether if present and preferably has mutual solubility therewith, may be a monohydric aliphatic alcohol, preferably of 4 or less carbon atoms, a phenyl substituted derivative thereof, e.g. benzyl or phenylethyl alcohol, an aromatic, alicyclic or heterocyclic monohydric alcohol, e.g. furfuryl or tetrahydrofurfuryl alcohol, a monoether of a polyhydric alcohol or glycol, e.g. carbitols, and "Cellosolves" (Registered Trade Mark), a multiple ether of a polyhydric alcohol such as dimethoxytetraglycol, or an aromatic or other cyclic nitrogen base such as aniline or pyridine.  The viscosities of typical solutions containing mono- or di-ethanolamine, water, and diethylene glycol, both with and without butyl carbitol as diluent are given. The percentage of diluent is preferably sufficient to give a viscosity of the rich solution of below 60 centistokes at 91 DEG  F. with solutions containing monoethanolamine and diethylene glycol, and below 90 centistokes where diethanolamine replaces mono.  The diluent preferably boils at 350-550 DEG  F.  Typical solutions are 60 per cent benzyl alcohol, 35 per cent diethanolamine, 5 per cent water; and 20 per cent monoethanolamine, 25 per cent diethylene glycol, 50 per cent butyl carbitol, 5 per cent water.  Gas to be purified may pass up through an absorber counter-current to the solution, and the enriched absorbent passed to a vent tank, from which liberated gas may pass to the base of a still and aid in stripping the down-flowing absorbent.  The extent of dehydration is controlled by regulating the temperature.  U.S.A. Specification 2,177,068 is referred to.
Patent GB-176286-A (GB)
Title: Improvements in receptacles or containers for pressed meats and the like
IPC: A47J47/00
Filed: 1921-07-12
Abstract: 176,286. Hennings, A. R., and Ezard, J. July 12,1921. Contents, delivering and viewing.-A container and showcase for pressed meats and the like comprises a base board 3 having longitudinal recesses 6 in which rest a cover 4 which is vertically movable to accommodate itself to the varying thickness of the slab as it is pushed through the container. The cover 4 is provided with hinged end doors 7, 10 the door 7 and the cover 4 being glazed at 5 and the door 7 resting against an inclined end of the cover 4. The hinge pins 8 work in elongated holes 9 which allow the door 7 to close in all positions of the cover 4. A cutting board a is provided and the meat is moved towards the board by a presser block introduced through the door 10.
Patent GB-504519-A (GB)
Title: An improved method of and apparatus for casting metal rods, tubes and the like
IPC: B22D11/14
Filed: 1938-06-27
Abstract: 504,519. Casting-machines. WIELANDWERKE AKT.-GES. June 27, 1938, No. 18975. Convention date, June 30, 1937. [Class 83 (i)] Moulds; mould materials.-In the continuous casting of metal rod &c. the mould 1 consists of graphite, carborundum, corundum, magnesite, quartz, or other refractory non- metal cooled externally by water flowing through a spiral tube 9 and the metal 4 is supplied by a container 2, supported by rods 24, and a tube 3 which, if the mould material or the metal 4 is easily oxidizable, is connected to a plate 15 between which and a plate 16 the mould is clamped. The cast rod 6 is couled by an air or water spray 19 and drawn down by driven rollers 7, 8. Before commencing operations the mould may be heated to the temperature it would assume in use by passing high frequency current through the pipe 9 by terminals 12, 13 and, if the mould is of quartz or other non- conductor, introducing a metal body into the mould cavity. This body is then removed and the lower end of the mould is closed by the usual rod engaged by the rollers 7, 8 which feed it downwards when pouring is commenced. A thermometer 14 is used to assist in keeping the process uniform and electric current may be passed through the pipe during casting if the temperature indicated is too low. In a modification the pipe 9 is replaced by a jacket 26, Fig. 3, adjustably pressed on to the mould by a spring 32 and nut 31. An observation window 17 may be arranged in'the plate, 15.
Patent GB-120919-A (GB)
Title: Improvements in and relating to Hand-tools for Straining Wire and like Material.
Inventor: WISE CLARENCE EDWARD
IPC: F16G11/12
Filed: 1918-11-19
Abstract: 120,919. Wise, C. E. Nov. 17, 1917, [Convention date]. Pliers and cutters; prizing-tools.-A tool for straining wire, cord, rope, metal tape, &c., and particularly for use in binding boxes for shipment, comprises a drum sector pivoted to a base and an operating lever pivoted to the sector and provided with a pivoted gripping shoe between which and a flattened part of the sector the wire &c. is gripped by a partial movement of the lever. further movement of the lever turning the sector on its pivot and effecting a straining of the wire &c. As shown in Fig. 1, for use in binding boxes, a sector 13 having a flat part 19 is secured to a shaft 12 rotatably carried by a weighted base 2 adapted to engage the box, and an operating lever 15, pivoted at 16 to an extension 14 of the sector 13, is provided with a pivoted shoe 21 co-acting with the part 19 to grip the binding element 3<1>. A pawl 29, pivoted to the lever 15 and controlled by a spring 36. and operating lever 32 and link 31, normally engages teeth 27 of a quadrant 26 fixed to the base 2, and a spring 38 connects the lever 15 and a pin 39 fixed to the shaft 12. By keeping the pawl 29 in engagement with the teeth 27 and moving the lever 15 slightly upwardly, the parts 19, 21 are moved apart sufficiently to allow of the insertion of the wire &c. 3' between them, and on moving the lever 15 downwardly, the wire 3' is first gripped by the shoe 21 and then strained by the movement of the lever 15 and sector 13 as a whole about the axis of the shaft 12. The inner ends 23<1> of the lever 15 are com-sbaped to increase the grip of the shoe 21 on the wire. After the strained wire is secured to the box, it may be severed by means of a knife 43, Fig. 8, pivoted to the base 2 and normally held up by a spring 42, the knife being struck by a hammer to depress it and sever the wire. When not in use, the lever 15 may be turned over on to the base 2 as indicated in dotted lines, the spring 38 acting to hold it in this position with the pawl lever 32 resting on a stop-lug 10 of the base 1. In a modification, Fig. 3, the toothed quadrant 26 is replaced by a plain quadrant 47' pivoted at its ends by pin and slot connexions with projections 46, 47 of the base 44, the quadrant being adapted to be gripped between an extention 52 of the drum sector 49 and a cam lever 55 pivoted to the operating lever 54.
Patent GB-516538-A (GB)
Title: Improvements in absorption refrigerating systems
IPC: F25B15/06
Filed: 1938-06-27
Abstract: 516,538. Refrigerating. ELECTROLUX, Ltd. June 27, 1938, No. 19046. Convention date, June 25, 1937. [Class 29] Absorpiion systems.-In continuous - cycle systems having a low pressure generator 12 heated by condensation of vapour from a high pressure generator 11, with condensate from both generators flowing to an evaporator 28, a liquid column 13 between the generator parts maintains the difference of pressure between them. The high pressure part of the generator is heated by a gas burner &c. 17, and vapour expelled therein is condensed in a coil 14, the heat of condensation serving as a source of heat of the low pressure part. Condensate from coil 14 flows through a U-seal 16 and pipe 42 to the evaporator, and the expelled vapour from the 'upper part 12 of the generator is condensed at 36 and led into a receiver 39 and thence to the evaporator by a seal 41. The liquid column 13 and seal 41 together balance the seal 16. The refrigerant liquid is circulated by a pump 31 through a coil 33 for cooling air circulated by a fan 35, and is sprayed at 29 into the evaporator. Vapour returns by a conduit 51 to the absorber 18 whence strong liquor flows by conduits 24, 25, 26 to the lower pressure generator 12. The liquid overflows through conduit 13 to the lower vessel 11, whence weak liquor is withdrawn by a conduit 21 with pump 22 and delivered to a spray 20 in the absorber, which is cooled by a water coil 19. A vacuum pump 49 may be connected to the absorber to discharge non - condensible gases and to maintain the system under reduced pressure. Water may be used as refrigerant and potassium hydroxide, lithium chloride or the like as absorbent.
Patent GB-1166535-A (GB)
Title: Improvements relating to Electroplating
Inventor: BOTT JOHN GRAHAM
IPC: C25D21/10
Filed: 1967-04-25
Abstract: 1,166,535. Electro-plating apparatus. BOOSEY & HAWKES Ltd. July 4, 1968 [April 25, 1967], No.19051/67. Heading C7B. Apparatus for electro-plating articles uniformly includes a number of carriers, e.g. spindles 6 each mounted on a pulley wheel 5, for suspending the articles 8, e.g. valve plungers of musical wind instruments, in a plating bath 3, and mechanism for driving the carriers in a closed path, whilst rotating them about a vertical axis. The wheels 5 may be pressed against an annular central stationary member (4, Figs .1 and 3) by an elastic belt (12) and driven by a second similar belt 13 passing around the assembly of wheels 5 and also a driving pulley 15 mounted on a shaft 16. The stationary member is preferably circular and located outside the bath. A screen 26 with perforations 27 may encircle the space below the carriers to act as a partial barrier to the flow of metallic ions to the lower portions of the articles. Electrical connection is made to the articles through the member (4) by a pick-up terminal 14.
Patent GB-1291613-A (GB)
Title: Gas filter bag structure
IPC: B01D46/02
Filed: 1970-04-21
Abstract: 1291613 Gas filter bag structure AMERICAN AIR FILTER CO Inc 21 April 1970 [21 April 1969] 19079/70 Heading BIT A gas filter structure comprises at least two filter bags 5 having rectangular open mouthshaping members 6 inserted in their mouths and a rectangular open frame. 2 having inwardly facing flanges which form channels into which the mouth-shaping members are inserted side by side so as to grip the edges of the filter bags between adjacent mouth-shaping members. The mouth-shaping members may each comprise a pair of V-shaped parallel side-bars 7, the V's of which face in the same direction (Fig. 8, not shown), and one side bar of each pair may have a hooked extension 9 so that adjacent mouth-shaping members are interengaging. The side-bars are connected by cross-bars 8. Alternatively (Fig. 7, not shown) one side bar of each pair may carry two spaced parallel rods (12) whilst the other sidebar carries a single such rod positioned so that when two mouth-shaping members are placed adjacent, the single rod on one mouthshaping member will fit between the two rods of the adjacent mouth-shaping member and hence the two members will interengage.
Patent GB-728152-A (GB)
Title: Improvements in writing implements
IPC: B43K5/17
Filed: 1952-07-29
Abstract: 728,152. Reservoir pens KOVACS, T. July 29, 1952 [Aug. 2, 1951 ; Aug. 6, 1951], No. 19130/52. Class 146(3). A reservoir pen 13 is axially slidable in a casing 1, such that in the writing position the nib 15 projects through a mouth 4 of a sleeve 2 fitted in the casing 1, while in the pen-retracted position the mouth is closed by a rotatable member 10 of substantially solid hemispherical shape. The member 10 is carried by pins rotatably mounted in . slots in a bush 5 within a rounded head portion 3 of the sleeve 2, the pins 11 resting on an abutment ring 8 urged upwardly by a spring 7, such that the member is pressed into the mouth 4. A projection 12 on the member 10 serves as a means for swinging the member 10 to permit the projection of the nib 15 and also as a stop to limit the rotation of the member 10. The pen is maintained in projected position by a pin 23, Fig. 1 (not shown), depressed inwardly against a spring by a finger of the user's hand into engagement with a shoulder on the pen ; such pin may be locked in depressed position by a locking device or maintained by constant finger pressure.