baber/WOPTO huggingface dataset:
Patent GB-1007187-A (GB)
Title: Automatic telephone exchange
Inventor: CROWTHER GERALD OFFLEY
IPC: H04Q3/52
Filed: 1962-10-04
Abstract: 1,007,187. Automatic exchange systems. MULLARD Ltd. Oct. 4, 1962, No. 37566/62. Heading H4K. In a telephone system in which speech paths include cold-cathode tubes, each subscriber has a plurality of tubes associated therewith of which one tube is located in each of a plurality of final selectors and wherein the tubes in a final selector are arranged in a matrix whereby markings applied from a control circuit to a selected row and column of the matrix allow the relevant subscriber to be connected to a link associated only with this final selector. Such a matrix is shown in Fig. 2 where speech is transmitted via the cathode-anode path of a selected tube 11 to m0 to a link connected to common point B, the further operation of such a system being more fully described in Specification 913,617. A final selector (Fig. 5) comprises gates PF1 and PF2 which are opened in turn by control circuit EP1 in order to receive the first and second impulse trains of the wanted subscriber's number, the first " digit " being stored in counter C until both digits have been completely received. Thereafter marking potentials from selectors S1 and S2 are applied to the speech tube matrix in order to select the required subscriber. In response to the calling party's loop the potentials at points A and B (Figs. 2 and 6) change whereby a tube TF11 in gate PF1 is made conducting whereafter dialled impulses are repeated via TF12 to a chain of ten discharge tubes C (Fig. 9, not shown) the finally operated one of which primes a corresponding tube of a further chain PG (Fig. 10, not shown). The dialled impulses are also applied to control circuit EP1 (Figs. 3 and 5) which is so arranged that only at the end of a train can capacitor CD charge sufficiently to cause tube TEP to conduct whereby gate PF1 is shut and a similar gate PF2 (Fig. 7, not shown) is opened. At the end of the second train the selected tube in S2 (Fig. 8, not shown) applies a marking directly to the required column of the speech tube matrix and the primed tube in PG is fired in order to mark the required row. A single common control circuit and gate PF2 may be utilized by a plurality of links although each final selector has a unique gate PF1 whereby the relevant link can be connected to the required row of its associated final selector only (Figs. 11, 12, 13, not shown). Telephone numbers having more than two digits may be used, in which case the arrangement described above may be applied to group and intermediate selectors.
Patent GB-633356-A (GB)
Title: Improvements in and relating to resinous compositions comprising amino-formaldehyde condensation products
IPC: C08L61/20
Filed: 1946-12-20
Abstract: A composition comprises 95-75 parts by weight of a non-alkylated amino-formaldehyde condensation product as defined in B.S. 1203 and 1204 and 5-25 parts by weight of an alkyd resin modified to an oil length of 75-150 with an oil and/or fatty acid at least 50 per cent of the acid radicals of which either have less than 14 carbon atoms or are unsaturated, or are both of short chain length and unsaturated.  Oil length is defined as the number of parts by weight of modifiers per molecular weight of polybasic acid.  Preferably, the alkyd resin has an acid number of 30-70. Oils mentioned are castor, linseed, coconut, soyabean and cottonseed oil.  Fatty acids mentioned are caproic, caprylic, capric, undecylenic, myristic, oleic, linoleic, ricinoleic, and the mixed acids obtained from certain oils. The products are useful for coating, laminating and moulding. Pigments may be included.  The compositions may be thinned with water or water-alcohol mixtures, suitable alcohols being methyl, ethyl, propyl and butyl.  The pH of the mixture is preferably adjusted to 7.5 to 10.5 with diethylamino ethanol, triethanolamine, disodium acid phosphate, sodium hydroxide, ammonium hydroxide, tri-ethylamine or guanidine carbonate.  Examples of alkyd resins are A from castor oil, phthalic anhydride, glycerine and fumaric acid.  B from coconut oil fatty acids, soya bean oil fatty acids, glycerine, phthalic anhydride and fumaric acid and C from soya bean oil fatty acids, glycerine, phthalic anhydride and fumaric acid.  These resins are used as solutions in isopropanol.  Other alkyd resin ingredients mentioned are maleic, adipic, suberic, azelaic and sebacic acid, and ethylene, diethylene and triethylene glycol, sorbitol and pentaerythritol. Examples of compositions are: (1) alkyd resin A, titanium dioxide, melamine-formaldehyde resin, aqueous ethanol and caustic soda.  The ingredients are homogenized in a ball mill and the syrup applied to paper sheets which are laminated; (2) similar to (1); (3) similar to (1) with resin B in place of resin A; (4) similar to (1) with resin C instead of resin A; (5) alkyd resin A is mixed with aqueous urea-formaldehyde and melamine aldehyde resins and titanium dioxide, and the product used to laminate paper sheets.  Other amino-formaldehyde resins referred to are those formed by reacting formaldehyde with melem, melam, formoguanamine, guanidine, dicyandiamide, guanyl urea or guanyl melamine.  Other pigments mentioned are cobalt aluminium, oxides of cobalt, chromium oxide, ferric oxide and lead chromate.  Other materials which may be laminated are glass cloth, paper fabrics, metals, cured thermosetting resins, plywood, impregnated wood.  The compositions of the invention may be used as surface coatings only, other synthetic resins being used for the inner sheets. Specification 455,008 is referred to.
Patent GB-1117378-A (GB)
Title: Polymer-containing compositions
Inventor: ISMAIL ROSHDY
IPC: C08K5/549
Filed: 1966-08-22
Abstract: Organic polymers contain as stabilizer a silicon compound of the formula <FORM:1117378/C3/1> in which R1 and R2 each represent an aromatic group having a carbonyl group (e.g. ketone or ester) in the ortho position and R3 and R4 each represent alkyl, aryl, alkoxy, aryloxy or an aromatic group having a carbonyl group in the ortho position; R1 and R2 or R3 and R4, when the defined aromatic groups, may be interconnected via the carbonyl group.  The aromatic groups may contain alkoxy, aryloxy, halogen or cyano groups.  Specified polymers are ethyl cellulose, polyvinylchloride, polyvinylidene chloride, polytrifluorochloroethylene, polyesters, polystyrene, polymethacrylates, polyphenylene oxide, cellulose acetate, polyamides, polyolefins and polybutadiene.  Other stabilizers and plasticizers may be present. Examples disclose the following compositions: (1) unsaturated polyester and tetra-(2-oxy-4-methoxybenzophenone) -silane; (2) P.V.C., dioctyl phthalate, soya bean oil, paraffin oil and dimethyl - di - (phenoxycarbonyl - 2 - phenoxy) silane; (3) P.V.C., di-n-butyl-di-(isooctylmercaptothioglycolate) tin and dimethyl-(2,21-dioxy - 4 - methoxy - benzophenone) silane; (4) as in (2) except the soya bean oil is epoxidized and there is added the tin complex used in (3); and (5) ethyl cellulose, dammar, toluene and dimethyl - di - (2 - oxy - benzophenone) silane.
Patent GB-1208707-A (GB)
Title: Process for the production of 3,5-dialkyl pyridines
Inventor: DIETERICH DIETER
IPC: C07D213/09
Filed: 1969-07-28
Abstract: 1,208,707. Dialkyl pyridines. FARBENFABRIKEN BAYER A.G. 28 July, 1969 [27 Aug., 1968], No. 37704/69. Heading C2C. 3,5-Dialkyl pyridines are prepared by reacting a 1,1,1-trimethylol alkane or alkene of formula R-C(-CH 2 OH) 3 , in which R is an optionally substituted alkyl or alkenyl radical, with at least half the equimolar quantity of ammonia and/or a primary or secondary amine at 180-600‹ C., optionally in the presence of a polar solvent and an acid catalyst and optionally under superatmospheric pressure.
Patent GB-335466-A (GB)
Title: Improvements in and relating to centrifuges
IPC: B04B3/00
Filed: 1929-12-10
Abstract: 335,466. Ramesohl & Schmidt Akt.- Ges. Dec. 10, 1928, [Convention date]. Density and strainer separators combined.-In a centrifugal separator where a first separation is effected according to the densities of the treated materials, a further separation is effected by a number of independent filters distributed round the periphery of the centrifuge. The rotor consists of two drums 1, 4 on a common shaft 2, and is enclosed by a casing 28 supporting the two receiving chambers 26, 27. The inner drum 4 contains vertical tubes 9 with inlet slots 10, and with their upper ends closed by screw plugs 11 with eccentrically bored holes 11'. A bellshaped part 12 in the drum 4 forms with the cover an annular passage 13 which leads to discharge pipes 14 closed by plugs 15 with eccentric holes 15<1>. The bell 12 also supports blades 12' inclined as shown in Fig. 2 to assist in the separation. The outer drum 1 contains a number of cylindrical filters 20 on sockets 19 in the flange 16<1> attached outside the drum 4. Each filter consists of an inner perforated cylinder 29, an outer filter 30, and an enclosing casing 32 which has an inlet slot 31 extending the entire axial length of the filter. The upper end of each filter opens into a chamber III from which discharge occurs through the eccentrically bored hole in the screw plug 21. The liquid for treatment is supplied to the container 25 and passes through the slots 6 in the sleeve 3 to the chamber I inside the drum 4. The heavy particles are thrown to the wall of the drum 4, pass upwards through the channel 13 and are discharged through the adjustable passages 15<1> into the chamber 26. The light particles pass through the slots 10, up the tubes 9 and are discharged through the adjustable passages 11<1> into the chamber 26. The main liquid stream passes on from the chamber I through adjustable passages 17<1> into the chamber II where heavy particles are thrown outwards to the wall of the drum 1 and light particles pass to the wall of the drum 4. The liquid stream enters the inlets 31 of the filters, passes through the walls 30, 29, upwards into the chamber III and from thence to the chamber 27. The filters may be rotated on their sockets so that the inlets 31 draw liquid from any particular zone, and the space inside the filters and the chamber III may be occupied by filtering material.
Patent GB-342072-A (GB)
Title: Improvements in web controlling apparatus for printing or other machines
IPC: B65H23/08
Filed: 1929-12-11
Abstract: 342,072. Feeding webs. SMITH, E. J., 18, Whitefriars Street, Fleet Street, London. Dec. 11, 1929, No. 38021. [Class 100 (i).] A web-roll brake for printing or other machines comprises one or more flexible friction members engaging the roll surface, anchored at one end and attached at the other end to a roller which is rotated to wind up the member as the diameter of the roll decreases, by gearing actuated by a weighted lever. One or more belts 32 are secured at their lower ends to pivoted levers 34, the upward movement of which is limited by stops 36. The upper ends of the belts are secured to rollers 39 on a shaft 40 journalled in arms 41 fixed to a shaft 42 to which is also secured a threaded arm 50 carrying an adjustable weight 52. A pinion 44 on the end of the shaft 40 engages a fixed segment 45 so that the weight 52 tends to wind up the belts. A pivoted dog 55, adapted to engage a notch 54 in a collar on the shaft 42, is provided to hold the arm 50 raised and the belts slack during the insertion of a new roll. The active roll and a spare roll are mounted in arms 10 secured to a shaft carrying a segment 20 engaging a manually actuated worm 21 by which the arms can be raised or lowered to receive the rolls. The arms 10 are adjustable along their shaft to suit rolls of different width and the shaft is axially adjustable for side register of the rolls by means of a screw 30 rotatable in the fixed frame and threaded into the end of the shaft.
Patent GB-1367559-A (GB)
Title: Razor blades
IPC: B26B21/16
Filed: 1972-08-15
Abstract: 1367559 Boxes for razor blades WILKINSON SWORD Ltd 30 July 1973 [15 Aug 1972] 38043/72 Heading B8P [Also in Division B4] A dispenser for holding a plurality of razor blade units 1 (Division B4) comprises a tray 4 of moulded plastics material, inclined ribs 5 being provided on opposed walls of the tray for locating the blades such that the blades may be lifted out by a suitably shaped handle. The tray is covered by a transparent plastics lid. Resilient lugs may be provided to retain the blades.
Patent GB-1168981-A (GB)
Title: Improvements in or relating to Heat Insulating Walls or Panels
IPC: E04B1/80
Filed: 1965-09-07
Abstract: 1,168,981. Laminates. MICKLEOVER TRANSPORT Ltd., and F. E. COLE. 6 Sept., 1966 [7 Sept., 1965], No. 38203/65. Headings B5A and B5N. [Also in Division F4] A heat-insulating wall or panel comprises two outer layers of plastics material bonded to opposite faces of a lattice structure defined by a plurality of intersecting hollow members of plastics material, the spaces between the hollow members being filled with a heat-insulating material comprising foamed or expanded plastics material. The outer layers and the hollow members may be formed from glass fibres bonded by plastics material. The hollow members may be tubular or may comprise strips or a sheet of plastics material bent to form channels across which extend said outer layer(s). The hollow members may be filled with expanded or foamed plastics material. Two lattice structures may be bonded to an intermediate layer of plastics material. In making the transport container shown in Fig. 1, a number of layers 10 of at least partially unset polyester resin are laid around the walls of a box-like mould, vertical members 11 of foamed or expanded plastics material being laid thereon and then horizontal members 12 of greater depth than vertical members 11 and having slots therein; strips 13 are then applied and the recesses between the covered members 11 and 12 filled with preformed pieces of expanded or foamed plastics material prior to the application of a thin layer 15 of plastics material, the procedure being repeated to apply members 11a and 12a in staggered relationship to members 11 and 12, strips 13a, pieces 14a of preformed foamed or expanded plastics material and layer 15a. In an alternative procedure, the foamed or expanded plastics material pieces may be formed in situ. The inner walls of the container may be lined with sheet metal.
Patent GB-813094-A (GB)
Title: Collars for garments
Inventor: FROST RONALD JAMES
IPC: A41B3/00
Filed: 1956-12-14
Abstract: 813,094. Shirt collars. CELLULAR CLOTHING CO. Ltd. Dec. 10, 1957 [Dec. 14, 1956], No. 38298/56. Class 141 In a shirt collar wherein the turn-down portion comprises three layers, the top layer is of cellular fabric and is bonded to the interlining, which is of substantially the same colour as the top layer, by means of polythene or other colourless thermoplastic material. The bottom layer is preferably of the same cellular fabric and may also be bonded to the interlining. Extra stiffening pieces of cellular fabric may be provided in the ends of the turndown portion between the interlining and bottom layer and bonded to both layers.
Patent GB-1286533-A (GB)
Title: Synthesis of ammonia
IPC: C01C1/00
Filed: 1969-07-30
Abstract: 1286533 Ammonia synthesis BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY 30 July 1969 [30 July 1968] 38360/69 Heading C1A [Also in Division C7] Ammonia is synthesized by (a) providing a solution of a Ti(IV) or Ti(III) compound in an organic solvent selected from an ether, a chlorinated or fluorinated hydrocarbon and a tertiary amine, (b) reducing the titanium to Ti (II), (c) contacting the solution with molecular nitrogen during the reduction step to form a complex, and (d) reacting the complex with a protonating agent which releases ammonia from the complex. The reduction is suitably carried out electrolytically or by means of a chemical reducing agent such as a naphthalide. Suitable protonating agents include monobasic alkyl or aryl alcohols.
Patent GB-1527361-A (GB)
Title: Transmitter circuit arrangement for remote measurements measuring-signals
IPC: G08C19/26
Filed: 1975-09-19
Abstract: 1527361 Two-wire telemetry PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 Sept 1975 [23 Sept 1974] 38590/75 Heading G1U In a two-wire telemetering system a receiver (not shown) provides power over the wires a, b to the arrangement of the invention where a voltage controller RV, T2 provides a constant voltage to the transducer connected across c, d and which provides a frequency significant signal to terminal e dependent on the parameter measured. This signal operates a switch S, thereby impressing a squarewave signal on the supply current through transistor T 1 . This pulsed current (the magnitude of which is determined by the current generator SQ3 which provides the transistor base current), charges a capacitor C which provides part of the transducer operating current over resistor R. The substantially constant current through R is half the magnitude of the pulsed current through T 1 . Therefore by varying the base current i B , this value can be altered and the depth of modulation of the supply current over the two wires a, b can be varied.
Patent GB-1008497-A (GB)
Title: Improvements in or relating to hydro-kinetic transmissions
Inventor: WILSON ANDREW GORDON
IPC: F16D33/10
Filed: 1963-10-02
Abstract: 1,008,497. Hydrodynamic couplings. SELFCHANGING GEARS Ltd. Oct. 2, 1964 [Oct. 2, 1963], No. 38744/63. Heading F2C. In a hydrodynamic coupling having impeller and turbine elements in a working chamber 13 and on emptying valve 29 which is normally closed by spring and centrifugal force, a valve (not shown) selectively supplies pressure liquid from an impeller driven pump A either through ducts 7, 8, 10, 11 to the working chamber 13 or through ducts 18, 19, 20, 22, 26 to a control piston 27 which moves down to open the valve 29 and empty the working chamber 13. During idling the impeller rear bearing 2 is lubricated by liquid supplied through branch ducts 32, 33 and the bearings 5, 34 are lubricated by leakage. A pressure regulator valve is provided in the ducts to the piston 27. During operation, excess liquid in the working chamber is returned through ducts 14, 15, 16, 17 and a cooler to a sump B in a fixed casing 4. Slats 31 may be cut in the outer periphery of the turbine to facilitate the escape of liquid from the working chamber.
Patent GB-1435301-A (GB)
Title: Cementiferous composition
IPC: C04B24/08
Filed: 1972-08-21
Abstract: 1435301 Cement compositions UNILEVER Ltd 13 Nov 1973 [21 Aug 1972] 38903/72 Addition to 1434924 Heading C1H A cementitious composition contains 0À005- 0À10% of a water soluble C 9 -C 10  fatty acid salt, e.g. Na or K salt. Gravel and sand are included for concretes for which the binders are cement or lime.
Patent GB-1103494-A (GB)
Title: Improvements in or relating to automatic telephone exchange systems
Inventor: BROWELL LESLIE JAMES
IPC: H04Q3/00
Filed: 1965-09-14
Abstract: 1,103,494. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. 13 Sept., 1966 [14 Sept., 1965], No. 39126/65. Heading H4K. In an exchange employing cross-bar switches operating on the self-steering principle, such as that described in Specification 890,235, and also including Strowger switches, and in which one or more junction groups are available to both types of equipment, backward markings being extended from idle ones of the junctions to the cross-bar equipment when the required group has been determined, the backward markings are delayed for a brief period in order to prevent the possibility of the Strowger equipment and the cross-bar equipment switching to the same outgoing relay set. Specifications 1,040,934 and 1,077,472, also are referred to.
Patent GB-1493170-A (GB)
Title: Apparatus for developing a travelling photographic emulsion carrier
IPC: G03D3/13
Filed: 1975-09-24
Abstract: 1493170 Photographic processing apparatus H HUSS 24 Sept 1975 [24 Sept 1974] 39145/75 Heading G2X In a photographic development apparatus, the film is passed through a processing bath, a washing bath, and then another processing bath, the film passing through each processing bath in a loopshaped path. Fig. 1 shows a sequence of three baths 2 filled with various processing liquids. The film strip 5 passes through each bath in a looped path, passing downwards into the bath between guide rollers, round a roller 22 at the lower end and then up again between further guide rollers. In between consecutive baths 2 the film strip is passed through a wash tank 32 containing water, so that the liquid from one bath is not carried on by the film to contaminate the next bath. The film passes over a roller 31 in the tank 32 which dips into the water, and may be pressed against this roller by a variety of devices, such as the endless belt 38 of Fig. 1, or supplementary rollers, as in Figs. (not shown) 2 and 3. Further clean water may be applied to the film from above, as in Figs. (not shown) 3 and 6. The liquid in the bath may also be pumped into a chamber 61 within the bath, and expelled through holes in the chamber wall to impinge on the film strip as it passes over the lower roller 22, so helping to keep it away from the guide baffle 62. The guide rollers 21 in each bath are arranged in three vertical rows as shown, all the rollers being completely immersed. Each roller is journalled in two opposite support walls, so that the whole  set of rollers can be withdrawn as a unit, for maintenance or cleaning.
Patent GB-1218047-A (GB)
Title: Electrically operated stepping device
IPC: H01H67/06
Filed: 1968-08-15
Abstract: 1,218,047. Electric selector switches. LEDEX Inc. 15 Aug., 1968 No. 39163/68. Heading H1N An electromagnetic selector switch has coaxial rotary driving and driven members coupled by one-way clutch means, the driving member being pivotally connected to a link at a position spaced from its axis; the link being movable transverse to the said axis of the driving and driven members to rotate the driving member in alternate opposite directions. As shown the driving member 28 is pivotally connected at 30 to the link 22 which is biased by a spring 24 and driven from a plate 16 secured to the armature 14 of an electromagnet 12. The armature is rotatable on balls (not shown) in arcuate recesses under bosses 18 when the armature is attracted to its electromagnet. Teeth 31, 32 on respective driving and driven members 28, 29 are urged into engagement by a spring 36 to provide a one-way drive of the member 29 between index positions of engagement of detents 35, of a spring 37, in apertures 33 in the member 29. The member 29 drives a shaft 46 which fits in a movable contact disc 42 having a contact area engaged by a spring 47 and a projecting movable contact 41 which engages, in turn, a circle of fixed contact springs such as 48. The fixed springs 47, 48 are mounted on an insulating plate 40 which may have additional contacts (not shown), on its underside, connected to respective upper contacts and cooperating with a bridging ring (Fig. 3, not shown) to earth the contacts not engaged by the movable contact 44. An extension 20 of the plate 16 is provided with a pin 64 providing a lost-motion drive in a window (60) of a movable contact bridge plate 66 which co-operates with contact springs (68, 70, 72) to provide makebefore-break changeover action in the circuit of the electromagnet for self-interruption. In Fig. 3 (not shown) a capacitor is connected between self-interrupter contacts (68, 70) to limit arcing and one of the contacts of the selector is shown connected so as to by-pass these contacts and maintain the electromagnet energized and thus to stop the rotary movement after one revolution.