baber/WOPTO huggingface dataset:
Patent GB-432561-A (GB)
Title: Improvements relating to solid fuel stoves
IPC: F24B5/08
Filed: 1934-01-26
Abstract: 432,561. Solid - fuel cooking - stoves. RADIATION, Ltd., Thimble Mill Lane, Aston, Birmingham, and YATES, H. J., 15, Grosvenor Place, Westminster. Jan. 26, 1934, No. 2721. [Class 126] A cooking-stove of the kind having an oven and a combustion chamber the upper part of which serves as a fuel hopper comprises in combination a bottom grate g, a front grate h, a door j covering and allowing to be exposed the whole of the front grate, a flue y leading from immediately above the grate g to above the oven and connecting the combustion chamber with flue passages over or around it, and means in at least one of these flues for controlling the flow of gases through it. A boiler may be arranged in a chamber behind the combustion chamber to which the gases pass by an opening 18 leading from the flue y. In the stove shown, the gases pass over, down the outer side of, below, and up the inner side of the oven behind the passage y to the outlet t, and are controlled by a damper w. A damper v in the top flue, when opened, allows the gases to pass back through a byepass flue u direct to the outlet without passing round the oven. A " hot-spot " is provided on the hot-plate, for rapidly heating utensils, by a plate 14 which is arranged to be more heated than the surrounding parts of the hotplate and to stand slightly above them. Hinged insulated covers 10 counterbalanced by springs 5 may be lowered on to the hot-plate when it is not in use.
Patent GB-904457-A (GB)
Title: An improved arrangement for tapping the potential of the reference electrode in an electrode measuring assembly
IPC: G01N27/403
Filed: 1959-01-26
Abstract: 904,457. Electrolytic potential measurements; two-part couplings. INGOLD, W. Jan. 26, 1959 [Jan. 25, 1958], No. 2770/59. Classes 37 and 38 (1). A half-cell for measuring electrolytic potentials has a coaxial cable lead - out, the connection between the braiding of the cable and the lead from the reference electrode being made by turning back the braiding of the cable upon itself and inserting the turned back end into the head of the cell where the brading is held in frictional contact with the electrode lead. As shown, the cell comprises a double-walled glass vessel 1 (Fig. 1) in which is located a reference electrode 9 having a platinum connection wire 7 and a pH sensitive glass membrane 10, the main outer wall being provided with a membrane 8 connecting with an indicating electrode 6. The letter is provided with a platinum lead 5 which passes through the inner wall at 4 and is fused in spiral form round the inner wall. A coaxial lead-out cable 11 (Fig. 3) has its braiding turned back at 13 and is inserted into the head of the cell so that the turned-back portion of the braiding is in electrical contact with the lead 5. The inner conductor is connected to the lead 7 by means of a silver wool or mercury mass 18. The cable is held in position by means of a flexible sheath 17 and a clamping ring 16. The lead 13 may be formed into or may otherwise comprise a ring fused to the inner wall of the cell. The arrangement permits the cable to be readily removed without unsoldering connections.
Patent GB-638118-A (GB)
Title: Compositions comprising polymeric materials
IPC: C08L27/06
Filed: 1948-01-30
Abstract: From 20 to 100 parts of organic di- or tri-isocyanate modified polyester is uniformly admixed with 100 parts of polyvinyl chloride, or with an interpolymer of vinyl chloride and a lesser amount of one or more other compounds of polymerizable olefinic nature, such as vinyl acetate, unsym. dichloroethylene, styrene, and the esters, nitriles and amides of acrylic, methacrylic, fumaric and maleic acids.  A monobasic carboxylic acid, e.g. with 10 to 18 carbon atoms, or its ester-forming derivative may be included with the glycol and the dibasic acid or their ester-forming derivatives which are reacted to form the polyester. From 3 to 15 per cent by weight of polyisocyanate is used to modify the polyester.  Lists are given of suitable glycols, acids, and di- and tri-isocyanates.  The modified polyester and polyvinyl chloride may be mixed or milled together alone or in the presence of solvents or swelling agents such as nitroparaffins, chloroform, ethylene dichloride, benzene, ethyl acetate/ethylene dichloride or in solution, or the modified polyester may be formed in situ in the mixture.  Curing agents and curing catalysts, as in Specifications 580,524 and 580,526; additional di- and tri-isocyanates; fillers such as carbon black, iron oxides, clay, asbestos, blanc fixe, whiting, lithopone and pigments; plasticizers such as tricresyl phosphate, dibutyl phthalate, butylphthalyl butyl glycollate, N - alkyl - toluenesulphonamides; stabilizers or antioxidants such as hydroquinone, N : N1 - hexamethylene - bis - ortho-hydroxybenzamide, N - phenyl - a  - or b -naphthylamine, and a : a  - bis - (2 - hydroxy-3 : 5 - dimethylphenyl) - butane, may be incorporated.  The compositions may be formed into films or spread on textiles and may be cured. They may be used to make gaskets, packings, hose, pump diaphragms, flexible fuel containers, electrical insulation, in lacquers, varnishes and paints and in coating balls, tyres and flexible material as used in protective clothing, leather, cloth and floor coverings.  In examples polyvinyl chloride is mixed with the following esters which have been modified with hexamethylene diisocyanate: (1), (2) polyethylene sebacate; (5), (6) polypropylene adipate; (7) (9) ethylene adipate sebacate copolymer; (10), (11) polyhexamethylene glutarate; (12) polyhexamethylene succinate; (13) propylene adipate/laurate copolymer; (14) propylene adipate/stearate copolymer; (15) propylene adipate/12-hydroxystearate copolymer and in examples (3), (4) and (8) the interpolymer of vinyl chloride and vinyl acetate replaces polyvinyl chloride in examples (2) and (7). The examples provide details of the preparation of each particular polyester and its modification by hexamethylene diisocyanate.
Patent GB-628252-A (GB)
Title: Improvements in or relating to warp let-off motions for looms for weaving
IPC: D03D49/06
Filed: 1946-01-29
Abstract: 628,252. Loom let-off motions. PICANOL, J. Jan. 29, 1946, No. 2845. Convention date, Dec. 3, 1940. (Class-142 (ii)] In a let-off motion of the kind comprising a cam-operated roller 26 controlling the tension of the warp and a whip roller 3 the tension of the warp on which controls the amount of yarn paid out by the warp beam, the oscillation axis 25 of the supporting lever 4 for the roller 3 is located in an adjustable support 32 in such a position that the moment about the axis 25 of the resultant of the forces acting on the roller 3 has for a predetermined tension in the warp a constant value which is independent of the diameter of the warp beam, the lever 4 having one end adjustably connected to a spring S and the other end connected by means of a bell crank lever 7 and connecting rods 8, 9, to a lever 6 one end of which is provided with a roller 20 movable in a slot 21 in a lever 22 connected to the slay sword 12 and the other end of which is pivoted to a bell crank lever 14 carrying the pawl 15 of the warp beam ratchet wheel 16.
Patent GB-982056-A (GB)
Title: Rotor member e.g. for a rotary wing aircraft
Inventor: BRACEY KENNETH EDWARD GEORGE
IPC: B64C27/18
Filed: 1964-01-22
Abstract: 982,056. Jet propulsion plant; gas turbine plant. ROLLS-ROYCE Ltd. Jan. 22, 1964, No. 2872/64. Headings FIG and F1J. [Also in Division B7] Gas turbine plant mounted at the tip of a helicopter rotor blade with its axis parallel to the axis of the blade comprises an air intake 20 leading to compressor 14 which is formed with a by-pass duct 23 to assist in silencing the noise of the jet efflux from nozzle 21. Turbine 14 and compressor 16 are mounted on a common shaft 24 which is carried by bearings 25 and 26 so that it is capable of limited axial movement. The shaft 24 is extended by a sleeve 33 which carries a piston 34 slidably mounted in a cylinder 35. The cylinder on the side of piston 34 remote from shaft 24 communicates with a chamber 37 which in turn communicates through apertures 43, chamber 42 and pipe 41 with an oil tank 40. Mounted within chamber 37 is a gear 44 which meshes with external teeth 45 on the outer extremity of sleeve 33, and is therefore driven by shaft 24, and the gear 44 drives through shaft 46 a gear pump 47, 48. The pump scavenges oil which has passed through vent port 51 when the piston has moved to a predetermined position and returns it to tank 40. In operation oil is centrifuged from tank 40<SP>1</SP> into chamber 37 to act upon piston 34 and thereby resist centrifugal loading on shaft 24 in proportion to the speed of the helicopter rotor.
Patent GB-747377-A (GB)
Title: Improved belt conveyor
IPC: B65G37/00
Filed: 1954-02-01
Abstract: 747,377. Endless conveyers. SANDGANGER, K. Feb. 1, 1954 [Feb. 14, 1953; April 23, 1953; June 29, 1953], No. 2899/54. Class 78 (1). Material is conveyed between a lower belt 2, running in troughed form on troughing rollers 13 and an upper belt 3 made up of a number of individually non-extensible weight elements pivotally connected in such a manner that the belt is flexible and extensible both in the conveying direction and in a direction at right angles thereto. Belt 3 is driven on its idle run by a belt 4 underlying it so that the weight of its operative run prevents material running back down the belt 2. The initial length of the conveying run of belt 2 which is not acted on by belt 3 is adjustably inclined to suit the material being fed to it, while the rest of the conveying run is more steeply inclined at angles up to 65 degrees. A roller 7 deflects the upper belt downwardly around the delivery roller 8 of belt 2 so as to maintain pressure on the material during discharge. Roller 5 supporting the upper end of driving belt 4 may, in a modification, be disposed below the level of roller 7 so that the latter may be driven. Belt 3 is formed by weights 15 connected together by links 17 and eyes 19 and held at a predetermined spacing by side chains consisting of links 18 and weights 16, alternate ones of which are connected by eyes 19 to adjacent weights 15. In a modification, (not shown), for finer material both the weights 15, 16 and the links 17, 18 are replaced by relatively short, thick, oval links. Hooked projections or bosses may also be provided on the belt 3 to bite into the material.
Patent GB-231618-A (GB)
Title: Improvements in crystal detectors for wireless
IPC: H01L29/00
Filed: 1924-02-05
Abstract: 231,618. Cox, C. Feb. 5, 1924. Crystal detectors.- One or more contact arms F are carried by a glass-topped metal casing C, which fits over and can be rotated about a disc A of insulating material carrying one or more crystals B. Electrical connection of the terminal I with the contact arm is provided by the casing C, which makes contact with a metal ring surrounding the disc A. The arm F may be insulated from the casing or the case C may be of insulating material, flexible wires being used for the connections. The contact arms may have a micrometer adjustment. According to the Provisional Specification, the window A may be a magnifying glass.
Patent GB-376770-A (GB)
Title: Improvements in or relating to flaw dectectors
IPC: G01N27/83
Filed: 1931-03-13
Abstract: 376,770. Magnetic tests. SPERRY PRODUCTS, Inc., Manhattan Bridge Plaza, Brooklyn, New York, U.S.A.-(Assignees of Drake, H. C. ; 65, Lincoln Boulevard, Hempstead, Long Island, New York, U.S.A.) March 13, 1931, No. 3114/32. Convention date, March 18, 1930. Divided on 374,172 and addition to 317,070, [Class 37, Electricity, Measuring &c.]. [Class 37.] The flaw detector mechanism claimed in the parent Specification is mounted so that it is maintained a substantially constant distance from the rail under test. The brush carriage engages the rail through which the testing current is passed, and means are provided for moving the detector carriage independently of the brush carriage, the detector carriage being mounted on the brush carriage. In one construction, Fig. 3, the carriage 70 carrying the detector coil box 12 is provided with bolts 75 which pass freely through bushes 76 on the support 71 secured to the brush carriage, springs 78 permitting limited movement of the detector carriage 70. The carriage 70 may have solid or grooved wheels 72, or shoes may be provided. The detector coils may be carried on rollers 95, Fig. 6, pivotally mounted on the detector carriage and spring biassed into engagement with the rail, or they may be carried in a block associated with, but separate from, the spring biassed rollers.
Patent GB-1534563-A (GB)
Title: Mono-and dis-azo dyestuffs containing aminomethyl groups
IPC: C09B33/02
Filed: 1976-01-27
Abstract: 1534563 Mono- and dis-azo dyestuffs containing aminomethyl groups STERLING DRUGS Inc 27 Jan 1976 [7 Feb 1975 17 Dec 1975] 03181/76 Heading C4P Novel dyestuffs have the formula wherein n is 1 and A has one of the structures or n is 2 and A has one of the structures R is H, C 1-  3  alkyl or akoxy or halogen; R<SP>2</SP> is H, C 1-  3  alkyl or alkoxy, halogen, -CH 2 NH 2  or -(CH 2 ) 2 NH 2  but A is not derived from #-naphthol if R<SP>2</SP> has either of these last 2 values, R<SP>1</SP> and R<SP>3</SP> are each H, C 1-3  alkyl or alkoxy, halogen or -CH 2 NH 2  but at least one is - CH 2 NH 2  if R<SP>2</SP> is not -CH 2 NH 2  or -(CH 2 ) 2 NH 2 ; Q, Q<SP>1</SP> and Q<SP>2</SP> are each H, C 1-  3  alkyl or alkoxy, NO 2  or halogen; and Q<SP>3</SP>, Q<SP>4</SP> and Q<SP>5</SP> are each H, C 1-3  alkyl or alkoxy or halogen. They are prepared by conventional diazotization and coupling processes are used in free base or acid-addition salt form to dye polymers in the mass, paper, paints, varnishes and inks and textile substrates such as those of wool, linen, cotton. regenerated cellulose, rayon and viscose.
Patent GB-138172-A (GB)
Title: Improvements in and relating to flyer spindles
IPC: D01H7/24
Filed: 1919-02-10
Abstract: 138,172. Wilson, K. Feb. 10, 1919. Spindle apparatus.- Flyer spindles for spinning and twisting comprise a frame l supported at each end and rotated by a band o. At the upper end is a tube h with a wire i extending down the bore and terminating in a twizzle j. The upper end is close to the nip of the front rollers c, and the yarn is wrapped round the wire and passes through the twizzle to a guide t on the frame, and thence to the bobbin s, which is mounted on a deadspindle q. The spindle q is reciprocated to build the bobbin, or the frame is made in two parts which telescope one into the other, the lower part carrying the bobbin which is thereby reciprocated on the dead-spindle.
Patent GB-805601-A (GB)
Title: Manufacture of new pregnenals and derivatives thereof
IPC: C07J71/00
Filed: 1955-02-03
Abstract: The invention comprises saturated and unsaturated 3,11,18-trioxygenated 20-oxo-pregnan-21-als and functional derivatives thereof, and their preparation by conversion of a free or functionally converted 21-hydroxyl group into a free or functionally converted oxo group, preferably (a) by oxidation of a 20-oxo-21-ol compound with cupric salts, e.g. cupric acetate, bismuth oxide, or oxygen in the presence of an alcohol-soluble metal salt, e.g. cupric acetate or ferric chloride, at about 50 DEG  C. and in a solvent such as acetone, methanol, ethanol or propanol, or (b) by treatment of a quaternary 3,11,18-trioxygenated - 20 - oxo - pregnane - 21 - yl ammonium compound (prepared from an ester of a 21-hydroxy steroid with a strong acid, such as a hydrohalic or an organic sulphonic acid, and a tertiary amine, e.g. pyridine, quinoline and isoquinoline) with a nitroso compound and cleavage of the resulting nitrone with acid, preferably in the presence of a carbonyl compound, or with pyruvic acid.  Specified functional derivatives include ethers, esters, thioesters, thioethers, thiol- and thion-esters, acetals, mercaptals, ketals, enol esters, enol ethers, enamines, hydrazones, semicarbazones and aldehyde bisulphite compounds.  In examples: (1) aldosterone hydrate in aqueous methanol is oxidized with air in the presence of cupric acetate, giving the hydrate of D 4-3,18,20-trioxo-11b -hydroxypregnene-21-al, characterised as its sodium bisulphite addition compound; (2) D 4-3,20-dioxo-11b ,18,21-trihydroxy-pregnene 18-monoacetate is oxidized as in (1), giving the hydrate of D 4 - 3,20 - dioxo - 11b  - hydroxy - 18 - acetoxy-pregnene-21-al, which is saponified with aqueous methanolic potassium bicarbonate to the 11b ,18-diol, which exists in equilibrium with its 21,18 - cyclo - semi - acetal; similarly D 4 - 3,11,20 - trioxo - 18,21 - dihydroxy-pregnene is oxidized to D 4 - 3,11,20 - trioxo - 18 - hydroxy - pregnene - 21 - al or its 21 : 18 - cyclo-semi-acetal and obtained from aqueous solvents as the hydrate; (3) D 4-3,18,20-trioxo-11b ,21-dihydroxy-pregnene or its 18,11-semiacetal is treated with p-tosyl bromide and pyridine yielding D 4 - 3,18,20 - trioxo - 11b  - hydroxy-pregnene-21-yl-pyridinium salt or its 18,11-semi-acetal, which is then treated with p-nitroso-dimethylaniline and sodium bicarbonate in aqueous methanol and the resulting D 4-3,18 - dioxo - 11b  - hydroxy - etienoyl) - N - (p - dimethylamino-phenyl) nitrone or its 18,11-semi-acetal stirred with ether-saturated 2N HCl giving the hydrate of D 4-3,18,20-trioxo-11b -hydroxy-pregnene-21-al.  D 4 - 3,20 - Dioxo - 11b ,18,21 - trioxy - pregnene 18-mono-acetate is prepared from the free triol by acetylation in pyridine and partial saponification of the resulting 18,21-diacetate with aqueous methanolic potassium bicarbonate.  Specifications 786,562, 793,850, 805,603 and 805,604 are referred to.
Patent GB-162791-A (GB)
Title: Improvements in and relating to microphones
IPC: H04R23/00
Filed: 1920-02-04
Abstract: 162,791. Cusins, A. G. T., Tucker, W. S., and Paris, E. T. Feb. 4, 1920. Thermal and thermo-electric instruments.-A hot-wire microphone, particularly of the type described in Specification 138,368, has a second hotwire so arranged relatively to it as normally to induce past it a current of air independent of the current produced by the sound waves. The second hot-wire is preferably used near its point of incandescence or beyond it; and may be arranged in an independent circuit and consist of a grid formed of shorter and thicker wire than the microphone grid.
Patent GB-1450772-A (GB)
Title: Portable turning machine
IPC: B23B3/26
Filed: 1973-01-24
Abstract: 1450772 Portable pipe or flange turning machine; grinding DAVID REEKIE & SONS Ltd 7 Dec 1973 [24 Jan 1973] 3564/73 Headings B3T and B3D A portable pipe and flange turning machine of the type having a stationary support member 2 which is securable to a pipe or flange in situ, a rotary carrier 7 mounted on the support member and which carries a tool holder 10 which is radially displaceable as the carrier rotates, characterized in that an annular bearing 14 is provided between the support member and the rotary carrier, the bearing having two pairs of co-operating bearing surfaces 17<SP>1</SP>, 18<SP>1</SP>, and 17, 18 the pairs being inclined with respect to each other and to the axis of rotation of the carrier member. In one embodiment the support member is provided with adjustable clamping means 5 which engages the bore of the pipe or flange and aligns the axis of the pipe or flange with the axis of the support member 2 and hence the rotary carrier 7. The support 5 has an upstanding shaft 3 on which the carrier 7 is mounted and on which it is rotated through gearing by way of a motor 8 and gear-box 9. The tool holder 10 is fed radially as the carrier rotates by way of means 11 which includes a feed screw. In an alternative embodiment shown in Fig. 2 the shaft 3 is omitted and the support member is provided with means to adjust and clamp the member on the outside of the pipe or flange but in other respects the operation of the machine is similar to the embodiment shown in Fig. 1. In addition to the cutting tool 12 to tool holder 10 is adapted to support a grinding attachment (not shown).
Patent GB-642900-A (GB)
Title: Improvements in or relating to liquid dispensing apparatus and method of dispensing liquid
IPC: B67D7/66
Filed: 1947-02-07
Abstract: 642,900. Counting-apparatus. WAYNE PUMP CO. Feb. 7, 1947, No. 3653. Convention date, Aug. 17, 1946. [Class 106 (i)] [Also in Groups XVIII and XXIX] Relates to liquid dispensing apparatus for supplying petrol to aircraft, and has for its object to ensure that the meter registers petrol passing through it only when fluid pressure exists in the hose. Movement of the control valve to the position in which the hose is so connected that petrol is pumped into it moves a rod 334 to compress a spring 348 against a block slidable on the clutch rod and abutting a latch lever 354 which is held by a stop-pin 358. The meter rotates a spindle 132 on which is mounted a gear-wheel 134 which meshes with an idler gear-wheel 136 which is pivoted at 138 to the axis 140 of a segment 142. The segment 142 is pivoted coaxially with the spindle 132 and meshes with a segment 362 pivoted at 360. The register is driven by a spindle 170 on which is mounted a gear-wheel 168 which meshes with a gear-wheel 166 rotatable with the gear-wheel 162 on a pivot 164. If, therefore, the segment 362 is moved clockwise the segment 142 is moved counter-clockwise and the gear-wheels 136 and 162 are brought into mesh, whereupon the drive from the meter spindle 132 is transmitted through the gearing to the register spindle 170. To prevent the register from being moved when the gears are out of mesh a pawl 150 is pivoted at 152 and urged by a spring 154 to bring a locking lug 180 into mesh with the teeth of the gear-wheel 162. The locking lug 180 is released when the gear-wheels 136 and 162 are brought into mesh by movement of the pawl 150 caused by its lug 148 being engaged by a shoulder 146 on the arm 140. The stop-pin 358 is arranged to be withdrawn by the pressure of petrol in the hose by the use of bellows to the inside of which petrol under hose pressure is admitted, expansion of the bellows withdrawing the stop-pin and so allowing the spring 348 to rotate the segment 362 and bring the gearwheels 136 and 162 into mesh, so connecting the meter-driven spindle 132 with the register spindle 170 as described.
Patent GB-1152417-A (GB)
Title: Microcrystalline materials
Inventor: GROSS WILLIAM EDWARD
IPC: C03C10/00
Filed: 1967-01-25
Abstract: 1,152,417. Devitrified slag glass. BRITISH IRON & STEEL RESEARCH ASSOCIATION. 24 Jan., 1968 [25 Jan., 1967], No. 3674/67. Addition to 986,289. Heading C1M. A microcrystalline material, or "slagceram"' produced by devitrifying a glass made from a metallurgical slag, consists, in wt. per cent, essentially of: SiO 2 , 46-62; MgO, 21-34; Al 2 O 3 ,10-21; Cr 2 O 3 , 1À5-5; CaO, 0-2; FeO, 0-1À5. Additional Cr 2 O 3 , CaO and/or FeO may be present as nucleating agent(s). The slag may be from a ferro-chrome smelter. Sand, clay, gangue, or slag may be added to the slag before melting or to the melt as described in Specification 986,289 to produce the desired composition. Fluxing agents, e.g. CaF 2  or Na 2 CO 3 , or colouring oxides, e.g. CoO, may be added. Also added may be, e.g., <10% of a nucleating agent, e.g. an oxide of a transition element, e.g. V, Mn, or Ti, a fluoride, e.g. CaF 2  or NaF, a phosphate, e.g. apatite, or mixtures or compounds thereof, e.g. cryolite, ilmenite, or chromite, V- or Mn- or open-hearth-slag, bone-ash, or fuel-ash, or C, as described in Specification 1,133,010. The material may be made by preparing a melt of the above composition and devitrifying by cooling with or without heat-treatment. The composition may be held in the form of a melt for more than 20 hours. The heat-treatment may comprise (a) maintaining the composition at 650-800‹ C. to achieve a desired degree of nucleation, (b) optionally cooling to roomtemperature, and then (c) heating to 900- 1000‹ C. or above up to the m.p. of the crystalline product, preferably 1150‹ C., and maintaining to effect crystallization. The final product may be finished as in Specification 986,289, granulated and formed into articles by pressing and sintering is particularly referred to.