baber/WOPTO huggingface dataset:
Patent GB-603144-A (GB)
Title: Improvements in mechanisms for driving two coaxial propellers in opposite directions
IPC: B64D35/04
Filed: 1940-05-09
Abstract: 603,144. Differential gearing. DESMOULINS, E. H. May 9, 1940, No. 8332. Convention date, March 7, 1939. [Class 80 (ii)] [Also in Group XXXIII] Propellers 1, 2, mounted on shafts 3, 4, passing one within the other, are driven in opposite directions from a coaxial driving shaft 8 by epicyclic differential gearing. The latter comprises a freelysupported planet carrier 7 having loose planets sets 9, 10, one set 9 meshing gears 5, 11 on shafts 3, 8 respectively, and the other set 10 meshing a gear 6 on the shaft 4 and a fixed gear 13. The gears may be of the bevel type instead of spur type, and the planetwheels may be compound wheels. Either or both of the propellers may have a braking or stopping device.
Patent GB-1164083-A (GB)
Title: Improvements in or relating to Concealed Hinges
IPC: F23Q2/40
Filed: 1968-02-22
Abstract: 1,164,083. Concealed hinge. SOC. FRANCOHISPANO-AMERICAINE FRANCISPAM. 22 Feb., 1968 [24 Feb., 1967; 30 Jan., 1968], No. 8553/68. Heading E2F. A concealed hinge, especially for use on a cigarette lighter cap, comprises a block 8 attached to one hinging member having arcuate grooves 9 on each of its outer surfaces, the grooves being centred on the pivoting point 3 of the hinge which is at or outside the edge at which the hinged members meet. Attached to the other: member are two sets each of at least two rollers 6 which run in the grooves 9. The hinge is spring-loaded by means of a spring 26 operating on a linkage system 20-25 which urges the "lid" member into both the fully open and fully closed positions. Alternative spring loading arrangements are disclosed with reference to Figs. 10-14 (not shown).
Patent GB-107229-A (GB)
Title: Improvements in Machines for Grinding Scissor and like Blades.
Inventor: ROYSE WALTER
IPC: B24B3/52
Filed: 1916-06-17
Abstract: 107,229. Royse, W., and Royse, J. June 17, 1916. Work-holders.-Consists of a magnetic or other work-holder to be mounted on a reciprocating bed for grinding a number of scissor &c. blades at the same time. In the face of the holder are formed a number of recesses of different forms, arranged in sets, adapted to hold the blades securely and to present the different faces at the required angles to the grinding-wheel.
Patent GB-526820-A (GB)
Title: Thermionic valves and other discharge tubes and contact making holders therefor
IPC: H01R33/76
Filed: 1939-03-17
Abstract: 526,820. Thermionic valve caps and holders. PHILCO RADIO & TELEVISION CORPORATION. March 17, 1939, No. 8559. Convention date, April 18, 1938. [Class 38 (i)] A valve cap and holder having a central guide pin 11 and socket 13 around which the contact pins 9 and holder contacts 5 are arranged, has the guide pin formed with a reduced neck 12, to co-operate with shaped resilient fingers 16 of the socket 13 to form a fastening to secure the valve ir the holder. A spring ring 24 strengthens the grip of the fingers 16. A projection 22 on the pin 11 enters a groove 18 in the socket 13 to locate the valve, a sight 26 indicating the position of the projection 22. The socket 13 is formed from a blank, and has a crimped flange 15 and an end flange 14 that hold the base plates 1, 2 together with a spacer 21 between. The contacts 5 which may be of the construction described in Specification 526,821, are loosely secured between the plates 1, 2 and connection tags 3 pass through holes in the plate 1. The socket 13 may have a connection tag 20. The pin 11 is of such a length as to co-operate with a beading 25 on the cap 8 to protect the pins 9. The socket 13 acts as a shield between the contacts 5. The beading 25 is used as a fulcrum to separate the pin 11 and socket 13. Reference has been directed by the Comptroller to Specification 516,169.
Patent GB-258175-A (GB)
Title: Improvement of method for fastening moulds together for manufacture of tea-pots and similar articles
IPC: B28B1/28
Filed: 1926-03-30
Abstract: 258,175. Holdcroft, H. L. March 30, 1926. Pottery, throwing and turning.-The upper part of a horizontally-divided two-part mould for jolleying pottery is provided with hook-shaped members C co-operating with key-hole slots B<1> on the lower part of the mould to lock the two parts together. In assembling, the hooked members pass through the larger parts of the slots and enter into locking engagement with the narrower portions when one part is turned relatively to the other.
Patent GB-888298-A (GB)
Title: Process for the biological synthesis of dextran
IPC: C12P19/08
Filed: 1958-03-18
Abstract: 888,298. Dextran synthesis. SERUM-WERK BERNBURG VEB. March 18, 1958 [April 30, 1957], No. 8589/58. Class 2(2) Dextran having a predetermined molecular weight range is produced by preparing an inoculation culture in a nutrient medium which is essentially free of primers and substances which form primers under the influence of the fermentation for the biological synthesis of dextran and which contains as carbon sources fatty acids having from 2-8 carbon atoms and/or organic di- or tri-carboxyl compounds' having from 2-8 carbon atoms and/or alcohols having from 1-4 carbon atoms or fructose or glucose, biologically synthesizing dextran in a nutrient medium containing sucrose by inoculating said medium with the inoculation culture and isolating dextran having the predetermined molecular weight range from the resulting medium. The preferred inoculation culture is leuconostoc mesenteroides or leuconostoc dextranicum. Primers such as dextran of known molecular weight may be present during the dextran synthesis to determine the molecular weight of the product. Clinical dextran may be made by this process.
Patent GB-1520615-A (GB)
Title: Self-feeding water heaters and boilers
IPC: F24H1/20
Filed: 1977-03-02
Abstract: 1520615 Self-feeding water heater or boiler CALOMAX (ENGS) Ltd 2 March 1977 08697/77 Heading F4A In a self-feeding water heater or boiler disclosed in Patent Specification 1,520,614 a pipe 19A leading from a steam outlet 19 enables steam to be directed adjacent to the water level W in the balancing tank 7 to the vicinity of where water flows from the inlet valve 6 when the balancing tank is being replenished.
Patent GB-1210783-A (GB)
Title: Improvements in and relating to resilient devices
IPC: F16F3/093
Filed: 1969-02-18
Abstract: 1,210,783. Springs. SOC. DES RESSORTS AUTO-AMORTISSEURS JARRET. 18 Feb., 1969 [19 Feb., 1968], No. 8782/69. Heading F2S. A spring has a chamber which comprises a toroidal portion 2 and a cylindrical portion 3. The chamber is formed by halves 4, 4<SP>1</SP> which may be held together by means of a peripheral collar 5; and contains an elastomer 1, which in its uncompressed state has a greater volume than that of the chamber. Each half of the chamber is made from a number of layers of sheet steel, for example, each layer being separated by a thin layer of solid lubricant. In use when counteracting forces F-F<SP>1</SP> are applied, flat central discs 6, 6<SP>1</SP>, which form the cylinder ends, are forced towards each other and some of the elastomer will flow from the cylindrical portion 3 to the toroidal portion 2.
Patent GB-1434523-A (GB)
Title: Tugstic and vanadic acids
IPC: C01G41/00
Filed: 1972-02-25
Abstract: 1434523 Preparation of tungstic and vanadic acids MUREX Ltd 25 May 1973 [25 Feb 1972] 8820/72 Heading C1A Tungstic or vanadic acid is produced from material containing tungatic oxide or vanadium pentoxide by digesting at a raised temperature with an aqueous solution of an alkali metal tungstate or vanadate or of an alkali metal hydroxide, carbonate or bicarbonate until the solution is at pH 3À5-4À5. The resulting solution is cooled and contacted with a cation exchange resin. The starting material may be pure tungstic oxide or V 2 O 5  or a hydrate or an ore or ore-concentrate. The digestion temperature may be > 80‹C. The digestion may be carried out in one stage or in two stages using a counter-current procedure. MgO and Ba(OH) 2  may be included in the digestion to remove SiO 2  and SO 4 = respectively. The solution containing the acid may be allowed to stand at ambient temperature or heated to not more than 90‹ C. to give insoluble tungstic or vanadic acid or it may be freeze-dried or evaporated under reduced pressure to give soluble tungstic or vanadic acid. Tungstic oxide and vanadium pentoxide may be prepared from the insoluble tungstic and vanadic acids by heating and this procedure may be used to purify these oxides.
Patent GB-1425858-A (GB)
Title: Textile finishing composition and process
IPC: D06M15/653
Filed: 1973-02-23
Abstract: 1425858 Crease-proofing compositions DOW CORNING CORP 23 Feb 1973 [25 Feb 1972] 8897/73 Heading C3R and C3T [Also in Division D1] A textile-treating composition comprises 50-99 wt. per cent of a crease-proofing agent and 1-50 wt. per cent of a polysiloxane having free carboxyl groups. Suitable crease-proofing agents include urea-formaldehyde, melamineformaldehyde, dimethylolethyleneurea, dimethylolpropyleneurea, methylol imidazolidone, dimethyloldihydroxyethyleneurea, tetramethoxymethyl dimethylene diureide, dimethylol uron, dimethylolethyltriazone, formaldehyde, glyoxal methyloldimethylhydantoin, epoxy resins, e.g. vinyl cyclohexene dioxide, dichlorohydrins, the pyridinium salt of ethylene bis-chloromethyl ether, tris-1- aziridinyl phosphine oxide, divinyl sulphone resins, a bis - hydroxyethylsulphone/sodium thiosulphate adduct, tris - (beta - sulphatoethyl)sulphonium salts, N,N-dimethylol ethyl carbamate and tris-(N-methylol-2-carbamoylethyl)amine. Suitable polysiloxanes comprise 75-99 mole per cent of units R n SiO 4-n / 2  and 1-25 mole per cent of units where R is a hydrocarbon radical optionally substituted with halogen atoms or cyano, isocyano, hydroxy, mercapto, ether, thioether, ester, thioester or nitro groups, R<SP>1</SP> is a divalent radical containing C, H and optionally O or S atoms, n is 0, 1, 2, or 3, m is 0, 1 or 2, at least 90% of the R-containing units contain at least one CH 3  radical and at least 90% of all units have 2 substituents, the average being 1À8 to 2À1. In the examples aqueous emulsions of polydimethylsiloxanes containing 1, 2À5 or 5 mol per cent of units are added to solutions of methylolated ethyleneurea (methylol imidazolidone) or glyoxal, with MgCl 2 , ZnCl 2  or Zn(NO 3 ) 3  as catalyst, and a surfactant. The mixtures are applied to fabrics of polyester and/or cotton.
Patent GB-1017305-A (GB)
Title: Device for protecting a person's eyes while the hair is being washed
IPC: A45D44/12
Filed: 1963-03-06
Abstract: 1,017,305. Hairwashing appliances. E. JEFFERSON-BERUNY. March 6, 1963 [March 8, 1962], No. 8931/63. Heading A5R. [Also in Division G2J] A mask to protect the eyes during hair washing comprises a transparent, translucent, or opaque resilient plastic foil 1 with a foam rubber rim 2 to make it watertight. The mask may be provided with side arms or rubber loops to extend round the wearer's ears. A nose pad 3 is provided and the mask has concave parts 7 over the wearer's eyes.
Patent GB-210661-A (GB)
Title: Process of and apparatus for the dyeing and subsequent handling of yarns wound in theform of cheeses
IPC: D06B5/16
Filed: 1923-03-29
Abstract: 210,661. Brandwood, J., Brandwood, T., and Brandwood, J. March 29, 1923. Circulating liquids through materials.-In the dyeing, bleaching, or like treatment of yarn cheeses, the cheeses are pressed from the tubes on which they have been wound on to fluted spindles so assembled that the dye or liqe liquor may be forced radially through the cheeses into the flutes of the spindles and thence back to the pump; the cheeses are finally passed to separate holders of the same cross-sectional area and configuration as the spindles. The fluted spindles 7, Fig. 1, are mounted in the upper plate of the casing 1 so that the flutes communicates with the internal chamber 2. In changing the spindles, a cheese 13 is fitted over the top of a spindle, as shown in Fig. 3, so that the tube 14 on which the cheese has been wound fits over a ferrule 15 mounted on a cylindrical projection 16 on the spindle ; the cheese is then slid into position. The cheeses having been packed on the spindles, as shown in Fig. 1, sealing blocks 8 are fitted on each spindle and the pressure plate 9 secured over the spindles and over the central rod 4. Finally the nut 6 and eye-bolt 12 are screwed in position on the rod 4. Pressure is applied to the cheeses by means of the nut 6, after which the whole apparatus is lifted into the treating kier by means of the eye-bolt 12. The treating liquor is forced through the yarn into the flutes of the spindles and thence through the chamber 2 to the pump; the direction of flow may be reversed. The cheeses may be treated with more than one fluid and may be dried before removal from the apparatus. The cheeses are removed on to separate longitudinally-bored holders having substantially the same cross-sectional area and configuration as the spindles, the holders being placed on the projections 16 after removal of the eye-bolt 12, nut 6, and plates 9, 8, and the cheeses slid up on to the holders. A creelpeg may be placed through each holder to facilitate the beaming process. Specifications 551/13 and 190,760 are referred to.
Patent GB-309027-A (GB)
Title: Improvements in or relating to inked ribbons or sheets
IPC: B41J31/00
Filed: 1929-03-19
Abstract: 309,027. Pelton, G. E. April 3, 1928, [Convention date]. Ink ribbons.-An ink ribbon or sheet adapted to yield ink uniformly until exhausted and to effect sharp impressions consists of absorbent material, for instance closely woven spun-silk or cotton fabric, felt, or paper, charged with ink and provided on the rear side with a coating that is permeable by ink but prevents excessive flow. The permeable coating may consist of cellulosic composition and may comprise viscose, pyroxilin, or celluloid with or without gums or resins. The coating is applied in one or more layers and is dried or baked, preferably in an oven or by rollers. In charging the material, the ink may be forced through the coating into the material. A further coating of gum, glue, or paste may be applied over the permeable coating. To prevent clogging of the types, the front side of the ribbon or sheet may be provided with a permeable or other coating, or with a cover which is attached at one or bothedges and preferably consists of celluloid or the like or of fabric impregnated with a mixture, of acetone and amyl acetate. A single thickness 14, Fig. 3, of material, after being coated and charged with ink, may be doubled and have the meeting edges 18 sewn together at the side or middle. Pad inking-arrangements. - The Specification as open to inspection under Sect. 91 (3) (a) describes the application of the invention to ink pads, consisting of an absorbent base coated in the above-described manner. This subjectmatter does not appear in the Specification as accepted.
Patent GB-543162-A (GB)
Title: Improvements in knapsacks
IPC: H03G1/00
Filed: 1941-07-15
Abstract: 543,162. Knapsacks. AKTIESELSKAPET BERGANS MEIS OG RYGGSEKK. July 15, 1941, No. 8946. Convention date, July 15, 1940. [Class 133] The free ends of the shoulder straps 6 of a knapsack frame are furnished with loops 7 which are slidable along the waist bow 3 and are adapted to be retained in one of several adjusted positions, for instance by the engagement of a button 12 on the loop 7 with one of a series of slits 11 formed in a strap 10 attached to the end part 5 and to the fixed end 6<SP>1</SP> of the other strap.
Patent GB-577688-A (GB)
Title: Paper bags and manufacture thereof
IPC: B31B19/86
Filed: 1944-05-10
Abstract: 577,688. Paper bags. ROBINSON, E. K., and BAGNALL, J. May 10, 1944, No. 8948. [Classes 94 (ii) and 133] A carrier bag of paper, or other material, comprises a bag 5 on each side of which are formed a slit 6 and creases 7, near the open end, the parts 8 then being folded inwards, or outwards, and the carrier string 10 passed through the slit. The string is secured to a strip of material 12, to which adhesive is applied before the strip is placed within the folded part 8. The slit 6 and creases 7 are formed by a pair of rollers 20, 21 carrying a knife 24 and projections 25, which co-operate with members 35, 34 respectively. The crease lines terminate at short distances from the ends of each slit 6. In a modification the roll 20 has two spaced knives and three spaced projections, to slit and crease the web of paper before it is converted into tube form. When thus formed, the two slits face one another.
Patent GB-735956-A (GB)
Title: Improvements in or relating to beams for use as floor centres and the like
Inventor: WILLCOX JOHN FREDERICK
IPC: E04G11/56
Filed: 1953-03-31
Abstract: 735,956. Floor shuttering supports. MILLS SCAFFOLD CO., Ltd. Jan. 26, 1954 [March 31, 1953], No. 8963/53. Class 20 (2). A beam for floor centring or for supporting shuttering, includes outer and inner telescoping sections 1, 2, each having respectively a platform top 3, 3a and a spaced lower boom bar or tube 6, 6a parallel to the platform and connected thereto by lattice or zig-zag side members 7, 7a, and releasable clamping means are provided for securing the sections in relative position to afford a required overall beam length. In the outer section 1 an elongated flat plate which forms the platform top 3 is provided with side flanges 4 along which angle irons 5, Fig. 4, are secured with webs 5a extending inwardly to form runways for the inner sections 2. The zig-zag tubes or bars 7 are welded to the under sides of the webs 5a and to opposite sides of the boom bar or tube 6. A stirrup rod 8 welded to the webs 5a and to the boom 6 provides additional reinforcement at each end of the section 1. Two inner sections 2 engaging in opposite ends of the outer section 1 may be provided, each consisting of a top plate 3a to the underside of which are welded angle irons with webs 5b, 5c disposed so that the apices of the angle irons constitute runners for co-operation with the runways 5a of the outer section. The zigzag tubes or bars 7a are welded to the underside of the plate 3a along the inside of the angle irons, and to the boom bar or tube 6a. A V-shaped loop 8a welded to the plate 3a and to the top of the boom 6a provides additional reinforcement at each end of the inner sections 2. On the external ends of the inner sections 2 are provided angle irons 11 forming an extension for engaging a supporting structure. A prop stand 12 secured by side braces 13, extends across the inner section slightly inset from the external end. The clamping means consists of bolts 9 engaging tapped sleeves passed through holes in the boom 6, and carrying shoes 10 which are engageable with the boom 6a. A bolt 14a secured to an angle iron web 5a co-operates with a stop plate 14 secured to an angle iron web 5b to prevent complete withdrawal of the inner section. In a modification, Figs. 7 and 8 (not shown), only one inner section is provided, in which case, that end of the outer section which does not receive the inner member, is provided with an extension for engaging a supporting structure, and also with a prop stand.
Patent GB-924817-A (GB)
Title: Diaphragm
IPC: C25B11/04
Filed: 1960-03-15
Abstract: 924,817. Electrolytic cells. RUHRCHEMIE A.G., and STEINKOHLEN - ELEKTRIZITAET A.G. March 15, 1960 [April 6, 1959], No. 9181/60. Class 41. An electrolytic cell for electrolysing an aqueous solution of an alkali metal chloride comprises an anode and a cathode separated by a porous diaphragm, the cathode being formed wholly or partly of a double skeleton material, i.e. one prepared by sintering a mixture of a powder of a carrier material and a powder of a Raney alloy and leaching out with alkali part at least, and preferably all, of the soluble component of the alloy to leave particles of Raney metal. The preparation of a double skeleton material is described in Specification 806,644. The mixture preferably comprises (per centages by weight) 35 to 65% carrier metal, e.g. Fe and/or Ni, and the alloy preferably comprises 40 to 60% of a metal of the iron group, e.g. Ni, and 60 to 40% of at least one metal of the group Al, Mg, Zn, and 1 to 20% of the iron group metal may be replaced by a Group VIII A  metal, e.g. Pt. The double skeleton material may comprise a layer, e.g. 0.2 to 0.4 mm. thick, of comminuted material on a metal foil or metal gauze, or the comminuted material may be applied to multilayered metal gauze or a plate of metal fibres so that the material fills the pores of the base. The material is compacted and the soluble metal dissolved out after application.
Patent GB-349689-A (GB)
Title: Improvements in or relating to spring mattress meshes, and to links therefor
IPC: A47C23/155
Filed: 1930-03-22
Abstract: 349,689. Wire fabrics for mattresses. GALE & SONS, Ltd., G. and WARD, W. H., Upper Dean Street, Birmingham. March 22, 1930, No. 9191. [Class 45.] A wire mattress is built up from a number of threesided links A, each of which comprises two side arms c and a central connecting piece a. A loop d is formed at the free end of each side arm, and an open loop b is formed at each end of the central piece. The links are arranged in lines, each link slightly overlapping the adjacent link as shown. The terminal loops d are then closed around the overlapping loops b of the links in the next line.
Patent GB-1505144-A (GB)
Title: Internal combustion engines
IPC: F02B41/04
Filed: 1976-03-05
Abstract: 1505144 Combined 2-stroke/4-stroke IC engine D G PRICE 5 March 1976 [5 March 1975] 9218/75 Heading F1B An engine comprises a pair of cylinders 3, 6, one cylinder 3 containing a piston 2 operating on a four-stroke cycle and reciprocating at twice the frequency of a piston 5 operating on a two-stroke cycle in the other cylinder 6. The pistons 2, 5 operate output shafts 8, 9 which are geared together so that the pistons have a common TDC position. Fuel is inducted through a port 12 at the base of the two-stroke cylinder and combusted gases are exhausted through a port 13. An induction fan and/or an exhaust fan may be provided and the ports 12, 13 may be valved. In a diesel engine a combustion chamber (not shown) may be provided by a pair of co-operating hemispherical hollows at the top of pistons 2, 5. The four-stroke piston preferably has a top surface area half of that of the two-stroke piston. In a modification the two- and four-stroke cylinders may be connected by a passage and arranged in a "V" or to extend alongside one another.
Patent GB-747891-A (GB)
Title: Improvements in and relating to optical measuring instruments
IPC: G01B11/00
Filed: 1954-03-30
Abstract: 747,891. Optical scale-reading apparatus. SOC. GENEVOISE D'INSTRUMENTS DE PHYSIQUE. March 30, 1954 [May 16, 1953], No. 9242/54. Class 97 (1). In apparatus in which an optical projector 10 is attached to a frame 1 and reflects light onto a scale 5 carried by a slider 4 which moves relatively to the frame, a translucent projection screen, having a diffusing surface, is formed as a disc 14 and is rotated at a speed greater than that at which a point of the screen will traverse an observation field 16 during the persistence of vision of the human eye. In the form shown an electric motor 15 drives a disc 14 of transparent material having one surface ground. Light from lamp 7 is reflected onto the scale 5 by semi-transparent plate 12 and the image of the scale is formed on the disc 14 by projection lens 11.