baber/WOPTO huggingface dataset:
Patent GB-304708-A (GB)
Title: Improvements in and relating to light signals for railways and the like
IPC: B61L5/18
Filed: 1927-10-25
Abstract: 304,708. Woodforde, J., and Westing- house Brake & Saxby Signal Co., Ltd. Oct. 25, 1927. Signal lamps; mounting electric lamps in Lanterns; lens-holders special to lanterns; lantern screens.-A railway or other signal lamp comprises one or more units 1, each unit consisting of a source of light 2, a single lens 4 for projecting a substantially parallel main signal beam, a screen 5 for preventing the entrance of extraneous light, and one or more reflectors 19 adapted to reflect a portion of the direct light through one or more separate lenses 27 so as to provide one or more auxiliary indications close to the signal. Each lamp holder 16, Fig. 1, is secured to a carrier 17 slidably and rotatably mounted on a cylindrical rod 18 arranged parallel to the optical axis of the lens 4. Each domed echelon lens 27, Fig. 5, and a relatively small hood 28 is carried in a downwardly inclined position by a member 24 provided with a flange 25 adapted to co-operate with a face on the lamp casing which is inclined to the axis of the main signal beam and provided with an aperture 22, each unused aperture being blanked out by a cover plate. As shown in Fig. 4, a hood 7 carried by an inner ring 8, the lens 4, the screen 5, an outer ring 9, a cover glass 6, a rubber or other packing ring 12, and a flat ring 11, are secured together by bolts 10 to form a single unit attached to the lamp casing by means of the inner ring 8. The screen 5 may be angularly adjusted by means of a lug 14 on an external supporting ring 13, and may carry a central prismatic screen 15. The lamp casing is provided with a supporting spigot 3, a hinged door 31, a display board 32, external terminal blocks 37, and a sighting arrangement comprising a front sight 33 and a rear sight 34 centrally mounted on a plate secured at ends to two lugs 36 cast on the base of the lamp casing. Specifications 249,468, and 295,347 are referred to.
Patent GB-931166-A (GB)
Title: Apparatus for sorting timber
Inventor: MURRAY ALASTAIR FYFFE
IPC: B07C5/14
Filed: 1960-08-16
Abstract: 931,166. Sorting timbers. THOMAS C. KEAY Ltd., and BELL & SIME Ltd. Nov. 16, 1961 [Aug. 16, 1960], No. 28336/60. [Class 117. In a timber sorting apparatus timbers in random lengths are fed along the apparatus by dogs 8 projecting from a chain 2 extending along the length of the apparatus and dogs 8 projecting from a series of chains 3 which are each progressively spaced a greater distance away from the chain 2 than the preceding chain 3. At the entrance end of the apparatus the timbers are fed by inclined chains 12 on to motor-driven rollers 13 which propel each timber against an abutment arranged adjacent the chain 2. Gates 5 are arranged in a supporting rail located beneath the chain 2 and when a length of timber moved along the apparatus by the chains 2, 3 actuates feelers 9A, 10A of micro-switches 9, 10, the gates remain inoperative, but if a timber actuates the feeler 9A only the gate 5 opens and the length of timber is lowered by inclined chains 7 to a collecting station 6.
Patent GB-1092264-A (GB)
Title: Flexible polyurethane foams and process for their preparation
IPC: C08G18/66
Filed: 1965-07-05
Abstract: Polyurethane foam is prepared by reacting an alkylene diphenylene diisocyanate with a polyol which is a mixture of a polytriol with a M.W. of 2400 to 6000 and a minor amount of a trihydric alcohol of equivalent weight less than 100, in the presence of a polymerization catalyst and a blowing agent.  The alkylene diphenylene diisocyanates may be unsubstituted or substituted with groups such as alkyl, alkoxy or halogen. Suitable polytriols are those prepared by reacting an alkylene oxide with triols such as glycerol, 1,2,6 - hexanetriol, trimethylolpropane, 1,2,4 - butanetriol and trimethylolethane. The trihydric alcohol used as a minor component of the mixture may be one of those triols mentioned above and in addition triethanolamine, tripropanolamine, triisopropanolamine, tributanolamine and 1,3,4 - trimethylolbutane. Preferred catalysts are tertiary amines and organotin compounds and mixtures thereof.  The blowing agents may be water and fluorine containing hydrocarbons. Conventional foam stabilizers may also be used.
Patent GB-963390-A (GB)
Title: Improvements in and relating to the manufacture of titanium dioxide
Inventor: WIGGINGTON RAYMOND JAMES
IPC: C01G23/07
Filed: 1959-08-19
Abstract: Titanium dioxide incorporating alumina is prepared by introducing titanium tetrachloride vapour and an excess of an oxidizing gas into a fluidized bed of particles of a refractory material substantially free from aluminium chloride maintained at 750-1500 DEG  C. to oxidize the tetrachloride to titanium dioxide, of which part is retained in the bed and the remainder is entrained in the gas stream leaving the bed, after which, and before the gas has cooled below 600 DEG  C., aluminium chloride vapour is incorporated with the gas stream, the quantity of oxidizing gas in the gas stream being at least sufficient to convert the aluminium chloride into oxide, and the rate of introduction of aluminium chloride being in the range 0.5-5% by wt. calculated as aluminium oxide based on the rate of production of the entrained titanium dioxide, and the aluminium chloride vapour having been obtained by the process of Specification 939,241.  The fluidized bed may itself be of titanium dioxide, and the particle size may be maintained by the gradual feeding of fresh titanium dioxide thereto with concomitant withdrawal of oversize particles. Carbon monoxide, which may be mixed with a diluent selected from nitrogen, carbon dioxide, and chlorine, may be fed to the bed. The gas containing entrained titanium and aluminium oxides may be cooled by passing it through a fluidized bed which is cooled by means of a cooled heat transfer surface, or alternatively, the suspension may be partially cooled and then passed through a scrubbing tower or quenching system.  Specification 927,171 also is referred to.  Reference has been directed by the Comptroller to Specification 761,770.
Patent GB-1032175-A (GB)
Title: Improvements in or relating to medicaments for preventing vomiting in children
IPC: A61K36/483
Filed: 1963-07-18
Abstract: A medicament for inhibiting vomiting in babies and young children comprises a pharmacologically acceptable organopolysiloxane having anti-foam properties and whole carob bean flour.  The organopolysiloxane is preferably a dimethylpolysiloxane having a viscosity of 100-12,500 centistokes at 25 DEG C and may contain colloidal silica.  It is used in quantities of 5 to 30 per cent with respect to the whole carob bean flour.  It is preferred that a sweetened excipient should also be present and the medicament may be in the form of granules.  Optional ingredients are tranquilizers, barbiturates and spasmolytic drugs.
Patent GB-603121-A (GB)
Title: Improvements in photographic solutions for coverting silver images to silver salt images
IPC: G03C7/42
Filed: 1945-10-27
Abstract: 603,121. Photographic bleaching baths. GENERAL ANILINE & FILM CORPORATION. Oct. 27, 1945, No. 28465. Convention date, Nov. 17, 1944. [Class 98 (ii)] The staining action of a photographic bleaching bath containing an oxidizing agent and a halogenizing agent is prevented by the addition thereto of an aliphatic aldehyde or diketone, e.g. formaldehyde, paraformaldehyde, acetaldehyde, aldol, crotonaldehyde, propionaldehyde, a hydroxyaldehyde, or a dialkyl diketone. Inorganic hardeners such as chrome or potassium alum may be employed. The bleaching bath, which may be for converting the developed silver in colour developed photographic material to a silver salt prior to fixing-out, may comprise potassium bromide, disodium phosphate, sodium bisulphate, sodium tetraphosphate, and an oxidizing agent such as an alkali metal or ammonium ferricyanide, an alkali metal persulphate or mixtures thereof. The potassium bromide may be replaced by sodium thiocyanate and the sodium tetraphosphate by a dialkylaminoalcohol. In example (1), multilayer colour photographic material is exposed, developed to black-and-white, re-exposed, colour developed, hardened in chrome alum solution, bleached in a bath containing disodium monopotassium ferricyanide, potassium bromide, sodium tetraphosphate, disodium phosphate, sodium bisulphate and formaldehyde, and fixed. In example (2), exposed multilayer material is colour developed, treated in a stop bath containing monopotassium phosphate and disodium phosphate, hardened, bleached in a bath containing potassium ferricyanide, disodium-phosphate, monopotassium phosphate, potassium bromide, sodium sulphite and paraformaldehyde, and fixed. In example (3), the procedure is similar to that of example (1), but the bleaching bath contains acetaldehyde. In example (4), the procedure is similar to that of example (2), but the bleaching bath contains crotonaldehyde. Specification 544,035 is referred to.
Patent GB-1049596-A (GB)
Title: Apparatus for heating and cooling vehicles
Inventor: HUDSON ARTHUR BERTRAM ROY
IPC: B60H1/00
Filed: 1964-07-10
Abstract: 1,049,596. Axial-flow fans. WESTLAND AIRCRAFT Ltd. June 14, 1965 [July 10, 1964], No. 28493/64. Heading F1C. [Also in Division F4] In a vehicle, air is driven through cooling and heating heat exchangers 11, 12 by fans 3, 4 which are driven by a motor 1 through clutches. As illustrated, each clutch comprises an armature plate 9 rotating with the motor shaft 2 and, on energization of an electromagnet 10, engaging a plate 6 carrying the fan blades. The plate 6 is carried by a ball bearing 5 on the motor shaft and the armature plate 9 is connected to the motor shaft by a flexible spider 8. The clutches may be controlled automatically in accordance with temperature. A fresh air inlet 19 is controlled by a flap 15 which also controls the admission of recirculated air to the fan 4. Air from the heat exchanger 12 is passed to windscreen demisting passages and to a flap controlled passenger compartment outlet 20. In a modification, Fig. 3 (not shown), the electromagnetic clutches are replaced by sprag clutches operating in opposite senses and the motor is reversible to operate either one of the fans.
Patent GB-535902-A (GB)
Title: An improved product for use in treating silk hosiery especially stockings, and othersilk articles
IPC: D06M13/02
Filed: 1939-10-24
Abstract: 535,902. Treating textiles with liquids; lubricants. WILLIAMSON, A. B. Oct. 24, 1939, No. 28553. [Class 15 (ii)] [Also in Group III] A composition for impregnating natural or artificial silk hosiery or other goods, so as to increase the wearing properties and to prevent running or laddering of the threads, comprises a mixture of spindle oil 69 per cent., sulphonated castor oil 10 per cent., emulsifying agents 20 per cent., and wetting agent 1 per cent., the composition being diluted with water before use to obtain an emulsion of the required concentration. A suitable concentration is 1 part of oil composition to 20 parts of water. The articles to be treated are dipped in the emulsion and soaked for a few minutes, then rinsed and dried. The wetting agent used may be a sulphonated fatty oil and the emulsifying agent may be a mixture of triethanolamine and oleic acid.
Patent GB-630535-A (GB)
Title: Improvements in universal angle drive, using eddy current couplings
IPC: H02K49/04
Filed: 1947-10-25
Abstract: 630,535. Electromagnetic couplings. WINTHER, M. P. Oct. 25, 1947, No. 28573. Convention date, Nov. 14, 1946. [Class 35] The magnetic members of an eddy-current coupling are of special shape to render it universal. Either member may carry the exciting coil or inductor teeth, but in the form shown, the driving side mounted on shaft 1, comprises a split outer eddy-current member 27, 29 with an annular exciting coil 33. The driven member, whose angle is adjustable, is provided with inductor teeth 47 running over its outer surface. Cooling is provided by apertures 15 and fins 17, 39 and 41.
Patent GB-227570-A (GB)
Title: Improvements relating to brick making or other machines having intermittently revolving platens
IPC: B30B15/00
Filed: 1923-11-13
Abstract: 227,570. Church, E. D., and Lash, F. S. Nov. 13, 1923. Rotary-mould-table machines.-Mechanism for revolving intermittently the platen of brick and other machines comprises a spider 6 mounted coaxially with a bevel gear 4 meshing with a toothed ring 3 on the platen 1, means for oscillating the spider, and spring-actuated latches carried by the rim of the spider adapted to engage spaced stops on the rim of the bevel gear 4. As shown, the spider 6 is supported upon the hub 14 of the gear by an interposed bush 16 and is oscillated through a pitman and wrist-pin 7. The spider is fitted with latches 8 backed by springs 11 adapted to engage spaced cam projections on the inner edge of the rim of the gear 4. The latches 8 are mounted in detachable housings.
Patent GB-518457-A (GB)
Title: Improvements relating to wire mesh spring mattresses or bottoms for bedsteads and the like
IPC: A47C23/155
Filed: 1938-10-03
Abstract: 518,457. Mattresses. WALES, Ltd., and BLACKMORE, A. E. À Oct, 3, 1938, No. 28621. [Class 52 (iv)] In a wire mesh spring mattress or bottom for bedsteads, couches, divans &c. of the kind wherein the meshes of the fabric are constituted by an assemblage of longitudinally and transversely disposed wire links 5. 6. and wherein the links 5 are bent to form two, triangular and laterally projecting loops 5a, the inclined sides of the loops are formed with a kink 5b in order to form recesses wherein the hook or loop-like ends of the adjacent links are localized thus. minimizing creaking. The mesh structure is connected to the frame 4a by anchorage members 7 made from wire of square or rectangular crosssection and bent to diamond shape 7a. The anchorage members are connected : directly to the links 5, or to interposed springs 8 the other ends 8c of the springs being bent to a concave shape at the extreme end to pass under the main branches of the links 5.
Patent GB-843360-A (GB)
Title: Improvements in or relating to goggles and other facial protection devices
IPC: A61F9/02
Filed: 1957-09-11
Abstract: 843,360. A facial protection device. FLEMING Ltd., J. & R., WORTH, C. J., and FLEMING, R. A. Sept. 10, 1958 [Sept. 11, 1957], No. 28710/57. Class 97(1) A facial protection device comprises ventilation holes located in one or both sides of troughs formed in the material of the device and with one side of their bases facing directly towards the interior and the other towards the exterior of the device. In the goggles shown in Fig. 9 the front piece is rebated round the edge to form a sunken portion 18 which is held between two parallel flanges 20, 21 round the front edge of the surround 19 by means of interlocking pieces 24, 25. The surround comprises troughs 29, 28 with a series of holes 31 situated on each side directly opposite each other and entirely above the level of the base of the trough. The goggles are held in place by straps 33 and the flange 30 and flaps 22, 23 are urged against the users face. Projections 32 may be formed on the sides of the troughs between adjacent holes to strengthen them.
Patent GB-520032-A (GB)
Title: Improvements in or relating to telescopic stays for securing hinged windows and likedevices
IPC: E05C17/30
Filed: 1938-10-04
Abstract: 520,032. Stays for hinged articles. BIERLICH, J. H., and SMITH & DAVIS, Ltd. Oct. 4, 1938, No. 28763. [Class 65 (i)] A telescopic stay has non-resilient friction shoes 21, 22 between the tube 1 and rod 2 capable of being expanded and contracted laterally to lock or release the stay. In one form the rod has screw connection with the blocks and has two wedge surfaces 19. 20 adapted to engage similar surfaces 24, 25 when the rod 1 is rotated to move it in either direction. In another form, the inner member of the stay is a tube with a split end carrying the shoes, and a rod inside the tube is adapted to be moved longitudinally by an external cam so that its pointed end expands the split end of the tube. In another form, a remote control operates the locking device.
Patent GB-618239-A (GB)
Title: Synthetic jewel or bearing material and method of making same
IPC: C30B29/26
Filed: 1945-10-30
Abstract: 618,239. Glass manufacture. BENDIX AVIATION CORPORATION. Oct. 30, 1945, No. 28786. Convention date, Nov. 21, 1944. [Class 56] Synthetic jewel material, e.g. for instrument bearings, is produced by heating the following mixture in a vented furnace to raise it in not less than 80 mins. to a temperature of 2732- 2760‹ F.: ammonium alum 400 (parts by weight); boric acid 120; magnesium oxide 40; and either calcium oxide 10 and litharge 20, or beryllium fluoride or oxide 10 and zirconium oxide 10; with or without a trace of metallic colouring agent, e.g. cobalt. The first mixture is suitable where the material is to be drawn into canes for subsequent working into jewels, the second where the jewels are to be made by the drop method directly from the molten mass.
Patent GB-443304-A (GB)
Title: Improvements in and relating to control apparatus for grid controlled electric discharge vessels
IPC: H02M1/04
Filed: 1934-10-09
Abstract: 443,304. Converting. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Oct. 9, 1934, No. 28893. Convention date, Oct. 9, 1933. [Class 38 (ii)] A discharge device 1 is controlled by means of an auxiliary valve 7 which is controlled so that the positive control impulses supplied to the grids 3 are of very short duration. When the valve 7 is non- conductive a negative bias is applied to the grid 3 through the resistances 4, 5 from part of the battery 6, and a positive bias is applied when the valve 7 is conductive. The valve 7 has preferably two grids 9, 10 to which respectively are applied ignition and extinction control potentials from a device 8. Specification 440,031 is referred to.
Patent GB-890784-A (GB)
Title: Improvements in or relating to transistor arrangements
Inventor: ROMAN GEORGE
IPC: H03F3/21
Filed: 1957-09-13
Abstract: 890,784. Transistor amplifier circuits. PYE Ltd. Sept. 15, 1958 [Sept. 13, 1957], No. 28962/57. Class 40(6). [Also in Group XXXVI] A transistor circuit equivalent to a transistor with a current gain substantially independent of emitter current comprises several conventional transistors 10, 10a, 10b, 10c (Fig. 3) with the emitters and collectors respectively connected in parallel and with their bases connected to successive tapping points on a potentiometer R1-R4. The voltage across the potentiometer is such that for low emitter voltages only one of the transistors conducts, the remaining transistors being brought in successively when the applied emitter voltage exceeds the base voltages of the respective devices. The decrease in α associated with increasing emitter current density is reduced since the effective emitter area increases with increasing emitter current to maintain a substantially constant overall emitter current density. In an alternative arrangement (see Group XXXVI) a voltage is applied between ohmic contacts at the ends of the base zone of transistor which thus itself acts as a potentiometer. The emitter and collector electrodes extend along the length of the base zone and the bias voltage is chosen so that the fraction of the total emitter area which actually emits increases with increasing emitter voltage, thereby producing substantially constant emitter current density.
Patent GB-1196023-A (GB)
Title: Improvements in or relating to Hand Tools.
Inventor: ROGERS EDWARD ALBERT
IPC: B26B13/16
Filed: 1967-06-23
Abstract: 1,196,023. Scissors &c. WILKINSON SWORD Ltd. 17 June, 1968 [23 June, 1967], No. 28999/67. Heading B4B. [Also in Division E2] A pair of scissors comprises two assemblies 10, 13 and 11, 14 connected by a pivot pin 15, the handles of the assemblies being biased apart about the axis of the pin 15 by a leaf spring 25 which applies a force to the handles which acts on the pivot pin transversely to the pivot axis, the spring 25 being embedded at its ends in solid cylindrical members 29, 32 of synthetic resin which pivot in semi-cylindrical slots 30, 33 respectively in the handles 14, 13. The member 29 has secured thereto a wire clip 31 which is engageable with the handle 13 to maintain the scissors closed. Each end of the spring has two lateral cut-outs (34), Fig. 7 (not shown). In a modification the invention is applied to secateurs.
Patent GB-427329-A (GB)
Title: Improvements in or relating to apparatus for marking paper rolls, webs, or the like
IPC: B41F17/00
Filed: 1933-10-20
Abstract: 427,329. Safety paper for tickets &c. NATIONAL CASH REGISTER CO., Ltd., and LUPTON, A. S., 225, Tottenham Court Road, London. Oct. 20, 1933, No. 29020. [Class 16] [See also Groups XVI and VIII] An apparatus for marking paper rolls for use in cash registers and like machines, to prevent fraudulent removal or substitution of a part of the rolls, comprises one or more groups of wheels 1, Fig. 1, of slightly different diameters, carrying electros or other printing- surfaces 14, or alternatively perforating-devices, and adapted to co-operate with an impression roller 12 to mark an almost infinitely variable design 6, Fig. 4, on the web. The marking- device is arranged preferably between a supply roll and a slitting and rewinding machine. Preferably three wheels 1 are mounted side by side between pairs of arms 2 which pivot removably about a flatted shaft 4. The wheels press with their own weight on the web of paper passing over the impression roller and find their own printing centre with respect to it. They are rotated by the friction of the paper and inked by rollers 8 which are supplied by wicks 10 and rest of their own weight against the wheels. More than one set of wheels may be mounted on the shaft 4, and the spacing of one set from another is altered for different widths of web by using one or another comb which frictionally grips the shaft and has notches engaging the arms 2. In a modified arrangement, the wheels are arranged in the same plane so as to print one after another and on top of each other on the web, producing the almost infinitely variable pattern shown in Fig. 6.
Patent GB-501796-A (GB)
Title: Improvements in or relating to cemetery and like memorials
IPC: C04B14/36
Filed: 1938-10-07
Abstract: 501,796. Memorial stones. WALLACE, T. E. Oct. 7, 1938, No. 29053. [Class 20 (i)] A memorial stone comprises a main artificialstone body composed of granulated natural stone and artificially coloured or bleached Portland cement, and an inscription panel or panels of natural stone inset into the main portion.
Patent GB-906405-A (GB)
Title: Improvements relating to fluid control valves
IPC: F16K11/065
Filed: 1958-09-11
Abstract: 906,405. Valves. MIDLAND PNEUMATIC Ltd., and COOPER, R. Oct. 23, 1959 [Sept. 11, 1958], No. 29132/58. Class 135. In a slide valve of the type comprising a slide 17 having a recessed face and reciprocable in a valve chamber 7 over a ported lateral face of a valve body to control the supply and exhaust of pressure fluid, e.g. compressed air, to and from external apparatus through supply and exhaust ports 12, 13 and 11 respectively, and wherein the slide is carried by a reciprocatory member 14 and is urged by a spring 20 and by the chamber pressure into engagement with the lateral face, the valve body 6 is provided with two removable parts one of which, 9, forms one wall of the chamber and provides said lateral face and the other of which, 21, forms an end wall of the chamber, said member 14 which carries the slide being a plunger having a socket accommodating one end of a spring 22 of which the other end is located in a complementary socket in the removable end wall part 21, the plunger extending beyond the chamber and abutting a longitudinally movable actuating member in the form of a ball 25 held captive in a ball housing 26. The slide 17 is made of polytetrafluorethylene and the bore of the valve body 6 may be coated with this material. Specification 9175/15 is referred to.