baber/WOPTO huggingface dataset:
Patent GB-792325-A (GB)
Title: Improvements in or relating to machines for manufacturing pneumatic tyre carcases
IPC: B29D30/28
Filed: 1955-07-22
Abstract: 792,325. Building tyres. CONTINENTAL GUMMI-WERKE AKT.-GES. July 22, 1955 [Oct. 15, 1954], No. 21323/55. Class 144 (1). In a machine of the form described in Specification 777,130 movement of the grippers is controlled by a cam 8 having a cam surface 9 co-operating with a follower 24 which is movable with respect to the cam 8 in such a manner that in all control positions it stands substantially normal to the cam surface 9. As shown the follower 24 is carried by its associated fluid control-valve housing 32 which is fixed to an arm 33 having a slidable and pivotal connection, by means of a slot 34, with a bearing pin 36 sited at the approximate radial centre of the surface 9. Pivoted to the arm 33, on an axis 38 aligned with the tip of the follower 24, is an extension of a link rod 23 which, with a further link rod 22 pivoted thereto at 37, is coupled to the grippers (not shown). The control fluid is supplied to the housing 32 by conduits 43. In an alternative arrangement, the housing 32 is carried by a stirrup 39, 40 which is pivoted at its ends on the axis 38 to turn extensions of the rod 23 and is connected to the cam 8 by a guide rod 41 slidable in a hole in a block 42 rotatably mounted on the cam 8. In this case, the control fluid is led to the housing 32 through the axis of the pivots 45 of the stirrup 39, 40 and the extensions of rod 23. Reference has been directed by the Comptroller to Specification 777,130.
Patent GB-922877-A (GB)
Title: New derivatives of 13-methylcyclopentanopolyhydrophenanthrene and methods for the production thereof
IPC: C07J1/00
Filed: 1959-06-22
Abstract: The invention comprises 17-esters of 17a -alkyl, alkenyl or alkinyl-D 5(10)-estren-17b -ol-3-ones wherein the 17a -substituent contains not more than 4 carbon atoms and the esterifying acids are those of hydrocarbon carboxylic acids of up to 12 carbons which may be substituted, e.g. by methoxy or chloro, together with a process for their preparation by esterifying the corresponding 3-alkyl enol ether 17b -hydroxy compound and subsequently hydrolysing the ether group under mild acid conditions, e.g. with oxalic acid.  The invention is illustrated by detailed examples.  17a -Vinyl-3-methoxy, 17a -vinyl- 3-propoxy-D 2,5(10) estradien-17b -ol are prepared by hydrogenation and 17a -propen-(1)-yl-3-ethoxy of the 17a -ethinyl (or propinyl) analogues, and 17a -propinyl -(1)-3- ethoxy-D 2,5(10)- estradien-17b -ol is obtained by treatment of the 17-oxo analogue with methylacetylene in potassium t-amylate solution.  Specification 850,386 is referred to.
Patent GB-954643-A (GB)
Title: Method of preparing blotter-type polyvinyl halide resins
IPC: C08J3/12
Filed: 1960-06-17
Abstract: <PICT:0954643/C3/1> "Blotter-type" polyvinyl halide resins, having a high capacity for absorbing plasticizers, are made by rapidly reducing the pressure on an aqueous suspension system comprising a vinyl halide polymer and a vinyl halide monomer, the conversion of said vinyl halide not being above 70%, to cause expansion of the polymer and formation of the "blotter-type" resins. A polymer charge comprising (a) a vinyl halide, alone or in admixture with up to 20% by weight of vinyl acetate or a vinylidene halide (b) water, (c) a protective colloid, e.g. methyl cellulose, polyvinyl alcohol or gelatin, (d) a polymerization catalyst, e.g. lauryl peroxide, benzoyl peroxide, an ammonium or alkali metal perborate or persulphate, hydrogen peroxide or an alkali metal perbenzoate (possibly in admixture with a reducing agent) and (e) a basic compound, e.g. sodium hydroxide, bicarbonate or sulphite is fed to a reaction vessel 1 provided with a heating jacket 4 and a stirrer 7. The charge is heated under pressure for some time and then part or all of the charge is withdrawn through a differential control valve 16 into a tank 20 which is at a lower pressure than the reaction vessel 1. In the tank, 20, vinyl halide monomer flashes off and blows up the polymer particles, the monomer being condensed in a condenser 27. Any charge remaining in the vessel 1 may be polymerized up to about 95% conversion. If all of the charge is removed from the reaction vessel 1, a short stop (e.g. tertiary butyl hydroperoxide or diisopropyl benzene monohydroperoxide) may first be added.
Patent GB-645983-A (GB)
Title: Improvements in or relating to a windshield wiper blade mounting
IPC: B60S1/42
Filed: 1948-08-13
Abstract: 645,983. Windscreen-cleaners. TRICO PRODUCTS CORPORATION. Aug. 13, 1948, No. 21451. Convention date, Sept. 19,1947. [Class 138(i)] A windscreen wiper blade mounting comprises a channelled member having longitudinally extending pintles struck from the material of the channelled member and extending in relatively opposite directions, and a clip adapted to be attached to an actuating arm and having end walls formed with bearings for receiving the pintles. A channelled member 27. Fig. 2, is firmly secured to the metal wiper blade backing 25 by a rivet 28. Pintles 22 are struck from the back wall 29 of the member 27 and are freely received in bearings 21 formed in the end walls 14 of a clip 11 made by a die stamping operation. The wiper arm 3 is held interlocked with the clip by means of a flat spring 12 formed with end projections 19 which engage in openings 20 in the end walls 14. A normalizing spring 30 having oppositely extending lateral parts 31 bears upon the back wall 29 of the channelled member in such a manner as normally to urge the wiper blade to an upright position on the windscreen. Rocking movement of the blade during the wiping operation is limited, as shown at 24, Fig. 3, by the side walls 13 of the clip engaging ears 23 stamped from the back wall 29 and extending laterally in opposite directions therefrom. The ears and the pintles may be struck from the metal backing 25 of the blade 26. Specification 632,953 is referred to.
Patent GB-952915-A (GB)
Title: Improvements relating to path switching means of apparatus for transporting letters,cards and like postal mail objects, and similarly relatively flat objects, along a predetermined path
Inventor: BURKHARDT GISBERT
IPC: B07C3/06
Filed: 1961-06-14
Abstract: 952,915. Sorting letters. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. June 14, 1961 [June 15, 1960], No. 21467/61. Heading B8A. A flap switch 5 for switching the path of a letter proceeding between rollers 1, 2, from passing between rollers 13, 14, to a path passing between rollers 9, 10, and vice versa, is activated by a switch setting signal becoming effective. According to the invention, the switch setting signal for the next following letter becomes effective while the distance between the front edge of the letter and the front edge of the switch flap is still less than the length of the letter. Bounding walls 8, 11, defining the alternative paths of the letters may be replaced by belts passing over the rollers 1, 13, and the rollers 2, 10.
Patent GB-780286-A (GB)
Title: Fluidtight packing for flasks, jars and the like containers, provided with a screwed cover
IPC: B65D41/04
Filed: 1955-07-25
Abstract: 780,286. Container closures. BAYETTO, A. July 25, 1955 [Aug. 5, 1954], No. 21496/55. Class 125(3). A fluid tight packing or seal for screw cap closures has a sleeve 1, which enters the container neck 5 and has a flange 2, the sleeve being closed by a frusto-conical web 3 provided with a projection 4 at its apex extending above the sleeve 1 in its unstressed state but which is engaged by the screw cap 6 to cause the cylindrical sleeve to bulge outwards and form a tight seal with the container neck. In a modification, Fig. 5, the sleeve 21 is closed by a frustoconical web 22 recessed at 24, pressure of the cap on the frusto-conical flange part causing the sleeve to bulge outwards.
Patent GB-426593-A (GB)
Title: Improvements in or relating to vegetable mills
IPC: A47J19/00
Filed: 1934-07-23
Abstract: 426,593. Filters. MANTELET & BOUCHER, 11, Rue Jules Ferry, Bagnolet, Seine, France. July 23, 1934, No. 21526. Convention date, May 17. [Class 46] [See also Group VI] A device for mashing and straining vegetables comprises a receptacle having a strainer bottom and a helical pressing-member in contact with the bottom, and is characterized by the strainer having corrugations extending radially whereby the pressing action is intensified as the presser ascends the inclines of the corrugations. As shown, the receptacle is of cone like form, a recess 2 being formed between the upper and lower parts 1, 1<1> in which the bifurcations of a handle member 3 are secured by welding. The ends of the bifurcations are turned downwardly to form hooks which support the device on a utensil, e.g. a saucepan. The helical pressing member 11 is secured to a shaft 8 having a handle 9 and the contact of the member with the strainer bottom 6 is maintained by the spring 101. The peripheral edge of the presser recedes from the wall of the part 1<1> as the distance from the bottom 6 increases, as described in Specification 405,802, [Group VI]. The radial corrugations are shown in exaggerated form in Fig. 4. The bottom 6 may be conical, concave or convex, the member 11 being correspondingly shaped. Downwardly inclined cutters 21 may be secured to the part 1<1>, the inwardly directed cutting edges scraping and disintegrating the mass which is rotated by the rotary helical pressing-member. The downward inclination of the cutters continuously returns material to the pressing zone.
Patent GB-531506-A (GB)
Title: Improvements in and relating to sinks
IPC: A47B77/06
Filed: 1939-07-25
Abstract: 531,506. washing-appliances. WEGMANN, R., and RYMANN, A., (trading as WEGMANN & RYMANN). July 25, 1939, No. 21539. [Class 138 (ii) ] [Also in Groups I and II] A washing machine (not shown) is arranged along with a centrifuge b beneath the draining board a of a sink. Water is supplied from a pipe d connected to the sink supply f and an outlet pipe h is connected to the waste pipe i of the sink. An opening in the board a is closed by a lid c. In a modification, Fig. 3 (not shown), the sink is provided on its other side with a second draining board under which is arranged the washing machine, the inlet and outlet pipes of which are also connected to the sink supply and waste pipe.
Patent GB-849723-A (GB)
Title: Improved luggage racks
Inventor: BUSBY ALBERT EDMUND
IPC: B60R5/00
Filed: 1959-06-24
Abstract: 849,723. Luggage racks for vehicles. DEANS & SON (YORKSHIRE) Ltd. June 24, 1959, No. 21588/59. Class 103(2). A luggage rack comprises a. framework 15, 16, 17, Fig. 8, and a plurality of anchoring members 21 for a twine or wire lattice network 20, the members 21 being engaged in the framework and slidable therealong. As shown in Fig. 7, the tubular longitudinal members 15 are each formed with a re-entrant portion 18 having an opening formed by a slot 19, the portions 18 being closed at the ends by plugs 17 bored to receive transverse rods 16. The anchoring members 21 in the form of collars crimped on to the lattice network 20 are slidable in the portions 18 and the rods 16 are threaded through the transverse edge regions of the network. In another embodiment the framework is in the form of a continuous tube slotted around its inner periphery and the anchoring members are hooks with shanks slidable in the slot and having shoulder portions which prevent the hooks being pulled out of the slot as described with reference to Figs. 1 to 5 (not shown).
Patent GB-125578-A (GB)
Title: An Improved Process for Producing Alumina Poor in Iron.
IPC: C01F7/24
Filed: 1918-12-24
Abstract: 125,578. Norske Aktieselskab for Elektrokemisk Industri Norsk Industri-Hypotekbank. April 8, 1818, [Convention date]. Nitric acid; alkali metal compounds, obtaining from complex silicates. Alumina and calcium and alkali nitrates are obtained from labradorite- or other minerals containing plagioclase by treatment with nitric acid, removing dissolved iron, evaporating to dryness, calcining to about 300‹ C. to decompose aluminium nitrate, and separating the other nitrates from the alumina by leaching. The labradorite is leached with 30 per cent nitric acid in vats A, A<1>, A<2> on the counter-current principle, the neutralized liquid being received in a vat C. After removal of iron by a basic substance, for instance alumina or limestone or potassium ferrocyanide, the solution is evaporated in vacuum apparatus F to near dryness so that, on calcination of the residue in apparatus D, nitric acid of 30 per cent strength may be obtained in a condenser G, though the evaporation may be carried so far that 60 per cent acid is obtained on calcination. The calcined residue is lixiviated in vats E and the alumina is calcined in apparatus J. Nitrogen oxides from the vats A, A<1>, A<2>, the calcining apparatus D, and the condenser G are led to towers B, B<1>, B<2>, B<3> for producing nitric acid from atmospheric nitrogen, the hot gases from the oxidation being used at indicated for heating the vats A, A<1>, A<2> and the calcining apparatus D, J.
Patent GB-479070-A (GB)
Title: Improvements in or relating to multiple track sound-film recording
IPC: G11B7/00
Filed: 1936-08-06
Abstract: 479,070. Recording and reproducing sound. WESTERN ELECTRIC CO., Ltd. (Electrical Research Products, Inc.) Aug. 6, 1936, No. 21678. [Class 40 (ii)] [Also in Group XXXIX] In a transmission system or recording and reproducing system, the high and low frequency components are treated separately or selectively for the reduction of effects due to noise. Fig. 1 shows a transmission system in which the high and low frequencies are separated by filters 2, 3 and are sent over separate channels 8, 9 which include volume compressors 4, 5 at the transmitting end and volume expanders 6, 7 at the receiving end. This arrangement may be applied to a recording and reproducing system employing a duplex record of the kind described in Specification 393,052 or separate records for the high and low frequencies. Figs. 2, 3 show a film recording and reproducing system in which the frequencies are separated into two channels by filters 14, 15, and the currents are separately recorded in adjacent traces on a film 20 by the method described in Specification 390,157 in which the recording device is biassed in dependence on the envelope of the currents to give complete modulation for all amplitudes. The traces are scanned by reproducing cells 23, 24 and the outputs are combined. The single channel system shown in Fig. 5 employs a volume compressor 41 and expander 44 which act only on the high frequencies and a volume compressor 42 and expander 43 of ordinary type. An analogous single channel film recording and reproducing system is shown in Figs. 7, 8 employing the recording method referred to above. and including a volume compressor 47 and expander 54 similar to 41, 44.
Patent GB-874274-A (GB)
Title: Improvements in or relating to electric switches
IPC: B60Q1/34
Filed: 1958-07-07
Abstract: 874,274. Retractive switches. LIGHT, L. June 19, 1959 [July 7, 1958], No. 21680/58. Class 38 (5). A switch for a horn, direction indicator, &c. has a resilient rod 4 secured in a rigid bush 3 and carried inside a tube 1 acting as the fixed contact or supporting the contact. The rod acts as or supports the moving contact and a rubber cap 8 is fitted to exclude dust. The mounting post 9 secures the switch, e.g. under a steering wheel with the free end of the rod projecting beyond the periphery of the wheel.
Patent GB-1093671-A (GB)
Title: Heat sealable adhesive compositions
Inventor: DOUGLAS EDWARD ALAN
IPC: C09J7/35
Filed: 1963-05-30
Abstract: Heat sealable adhesive compositions comprise at least a two-component mixture, which may be dissolved or dispersed in a suitable vehicle if necessary, a first component being a heat sealable copolymer of ethylene and vinyl acetate which will adhere to a base material and the second component being a polymer or copolymer of at least one monoethylenically unsaturated monomer which reduces the cohesive or adhesive strength of the said first component to provide peelability. Specified second components are polystyrene, polymethyl methacrylate, polyvinyl acetate, vinyl chloride/acetate copolymer, polyvinylidene chloride, polyvinyl butyral, chlorinated polyvinyl chloride, chlorosulphonated polyethylene, polypropylene, butadie ne-acrylonitrile copolymer, butadiene - styrene copolymer, acrylonitrile-butadiene-styrene copolymer and non-aromatic and aromatic hydrocarbon polymers.  The polymer components may be dissolved in a solvent such as toluene or dispersed in an aqueous medium. The composition may also include a plasticizer, e.g. cyclohexyl benzenesulphonamide or cyclohexyl toluenesulphonamide.ALSO:Adhesive compositions comprising an ethylene-vinyl acetate copolymer and another polymer or copolymer of at least one monoethylenically unsaturated monomer, which reduces the adhesive strength of the first copolymer, are coated on base materials such as paper, board, film, foil and laminated or coated materials. The compositions may include plasticisers.  The said other polymer or copolymer may be, for example, polystyrene, polymethyl methacrylate, polyvinyl acetate, vinyl chloride/acetate copolymer, polyvinylidene chloride, polyvinyl butyral, chlorinated polyvinyl chloride, chlorosulphonated polyethylene, poly propylene and copolymers of butadiene with styrene and/or acrylonitrile. Substrates specified for coating with the adhesive are (1) Kraft paper coated with polyethylene or polyproylene (2) polyethylene film (3) Glassine paper and (4) unplasticised polyvinyl chloride. The adhesive may be applied as a hot melt, as an aqueous dispersion or as a solution in a solvent, e.g. toluene, by methods such as roller or gravure coating or by extrusion.
Patent GB-1040962-A (GB)
Title: Catalytic halogenation of hydrocarbons
IPC: C07C17/15
Filed: 1963-05-31
Abstract: In a process for polyhalogenating an unsubstituted or halogen-substituted hydrocarbon containing at least one hydrogen atom of the olefinic or aromatically unsaturated type, the hydrocarbon is reacted with an aqueous composition comprising an aqueous Cu++ or Fe++ halide and as a promoter at least one halide of a dissimilar element, or a dissimilar valence state of the same metal, the metal being selected from Cn, Ag, An, Zn, Cd, Hg, B, Al, Ga, In, Tl, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Fe, Sn, Bi, Co or Ni, the concentration of the total metal halides being between 0.001 mol per cent and 50 mol per cent. Halogenation is stated to include chlorination, bromination and iodination. The preferred hydrocarbon or derivative thereof used as starting materials are those olefins containing 2-5 C and benzene.  Specified are ethylene, propylene, butene, butadiene, isoprene, toluene, xylene, styrene, vinyl chloride and monochlorobutadiene and mono- and di-chloroethylenes. Reaction temperature is usually 125-165 DEG  C. and pressure 60-300 p.s.i.g.ALSO:A catalyst composition comprises an aqueous solution of cupric or ferric halide and as a promoter at least one halide of a dissimilar element or a dissimilar valence of the same element, the element being Cu, Ag, Au, Zn, Cd, Hg, B, Al, Ga, In, Tl, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, Mn, W, Sn, Bi, and Ni, the concentration of the total metal halides in aqueous solution being between 0.001 mol per cent and 50 mol per cent.  Specified promoters are FeCl3, CrCl3, HgCl, AlCl3, TiCl3, VCl3 and MnCl2.  The catalyst may contain some halide in suspension as well as solution, and sulphates e.g. CuSO4 or Fe2(SO4)3 may be added to control the vapour pressure.
Patent GB-356880-A (GB)
Title: Improvements in or relating to television and like systems
IPC: H04N3/38
Filed: 1930-07-21
Abstract: 356,880. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Smith, T. A.; Ridgewood, New Jersey, U.S.A.) July 21, 1930, No. 22014. Convention date, July 19, 1929. [Class 40 (iii).] In the transmission of a motion-picture film moved uniformly and continuously, the frame lines between successive pictures are not scanned and a mask is interposed to restrict the scanning beam laterally to the picture portion of the film. A light beam from a source 13 passes through the apertures 19 of a scanning disc 17, and after modulation by the film 1, moved uniformly and continuously by sprockets 9, is incident on a photoelectric cell 23. The apertures 19 are arranged in a spiral of small pitch such that the radial distance between the first and last holes a, c corresponds to the width occupied by the frame lines 25, which are thus omitted from the scanning. A mask 28, which may be in front of or behind the film, is of such a width that the scanning beam is limited laterally to the picture portion of the film. An accompanying sound record 30 may be analyzed separately and transmitted simultaneously with the picture currents. The apertures of the disc 17 may be replaced by lenses or mirrors. A drum type scanning member with an internally arranged light-source or alternatively a scanning system comprising a fixed back of mirrors and a rotary scanning element as described in Specification 351,972 may be employed. At the receiving station the signals are applied to a glow lamp operating in conjunction with the usual Nipkow spiral disc.
Patent GB-1269667-A (GB)
Title: Method and apparatus for the erection of spherical tanks
Inventor: CERNAT VIRGIL VASILE
IPC: E04H7/14
Filed: 1969-04-30
Abstract: 1,269,667. Welding by fusion. UZINA 23 AUGUST. 30 April, 1969, No. 22113/69. Heading B3R. [Also in Divisions E1-E2] In the construction of a spherical metal tank from superpositioned segments which are subsequently welded together, the segments are held in position by annular supports 2, 3 carried by a central pillar and correctly levelled with respect to an adjacent segment by means of devices 5 which are pivotally connected to said supports 2, 3. The devices (Fig. 2) include a blade 6 which passes through the gap between adjacent segments the latter being held between parts 8 and 10 of the device. In contructing the lower half of the sphere, the supports 3 extend outside the enclosure of the subsequently erected sphere as distinct from the supports 2 for the upper half.
Patent GB-855679-A (GB)
Title: Improvements in or relating to liquid detergent compositions
Inventor: BEST GEORG PETER
IPC: D06L4/12
Filed: 1958-07-10
Abstract: A stable concentrated liquid detergent composition comprises (a) at least one anionic detergent of formula RO(CnH2nO)mSO3M wherein R is an alkyl or alkylaryl radical in which the alkyl groups contain 6-18 carbon atoms, M is alkali metal, ammonium or substituted ammonium, n is 2 or 3 and m is 1-8, (b) an alkali metal condensed phosphate suitably in an amount of 5-30% by weight of the composition, particularly sodium pyro and/or tripoly-phosphate, (c) a carboxymethylcellulose soil suspending agent, preferably sodium carboxymethylcellulose having a degree of substitution of 0.4-1.1, and (d) hydrogen peroxide, preferably in an amount of 0.5-3% by weight of the composition.  It is preferred that a further anionic detergent (e) be included, such as an alkyl sulphate, an alkylaryl sulphonate, an acylated hydroxy- or amino-sulphonate or a sulphonated protein-fatty acid condensate, when the weight ratio of (a) to (e) is preferably 1:1 to 1:6; the total of (a) and (e) should be 5-25% by weight of the liquid composition.  The composition preferably also contains sodium p-hydroxybenzoate, nitrilotriacetate or ethylenediamine tetraacetate as stabilizers for hydrogen peroxide, and may also include fatty acid alkanolamides, benzoyl and acetyl esters of sodium phenol sulphonate, acetic anhydride, optical brighteners, inorganic salts (other than sodium silicate), perfume and colour.