baber/WOPTO huggingface dataset:
Patent GB-981913-A (GB)
Title: Improvements in or relating to brake booster mechanisms
Inventor: SCHULTZ FORREST O E
IPC: B60T13/563
Filed: 1961-05-30
Abstract: 981,913. Fluid-pressure brakes. MIDLANDROSS CORPORATION. May 30, 1961, No. 19450/61. Heading F2F. [Also in Division G3] In a brake mechanism with a fluid-operated piston type booster motor 36, a rod 12 actuated by a brake pedal (not shown) is adapted both to act through a cylindrical valve guide 92 upon a fluid-controlling valve assembly 101, 102 and to operate a brake operating mechanism in the form of an hydraulic master cylinder 14 the. valve assembly having a degree of lost motion which is operatively so long as fluid pressure is available but is inoperative so as to equalize the pressure on both sides of the fluidoperated booster piston when the fluid pressure fails. A friction coupling in the form of a seal 110 (Fig. 4) is provided between the valve member 101 and the guide 92 such that when fluid pressure is available, the pressure acting on the valve is sufficient to overcome the friction coupling between the valve member and the guide to cause lost motion between them. In the released position of the vacuumsuspended booster motor 36 shown in Figs. 2 and 4, constant pressure chambers 75, 77 and variable pressure chambers 76, 78 are at the same sub-atmospheric pressure and are isolated from the atmospheric pressure available in a bellows 80 leading to a filter type breather 85. A piston assembly 52 is at its right-hand end position in the three part housing 37, 38, 39. The vacuum from a suitable source is provided via connections 87-90 inclusive to the constant pressure chambers 75, 77 and via radial passages 121, open valve seat 102, radial passage 124, radial passages 126 to the variable pressure chamber 76 and thence via connection 91 to the other variable pressure chamber 78. Higher actuation of the brake is achieved by movement of the rod 12 to the left to advance the valve 101 so that a pressure differential is created on the walls 53 and 54 of the piston assembly 52 to move the latter to the left and through a lever assembly 112 and a dished shape ring 116 a rod 34 is actuated to apply the hydraulic master cylinder piston 21 to actuate the brakes. For an initial portion of the movement of the valve guide 92 there is provided a small degree of lost motion before the valve seat 102 engages the valve 101. In the event of a failure of the vacuum supply the valve 101 will be free to move as a unit with the valve guide 92 without any lost motion therebetween by the provision of the friction means in the form of the seal 110 which acts between the valve 101 and the valve guide 92. During normal operation when vacuum supply is available the friction between the part is easily overcome by the pressure differential acting on the valve element 101. A waveform spring 105 is provided to act between the piston assembly 52 and the valve guide 92 and the spring offers sufficient force to enable all the parts to return to their initial fully released position as illustrated in Figs. 2 and 4. Specification 981,912 is referred to.
Patent GB-1326328-A (GB)
Title: Internal combustion engine radiator cooling fan shroud arrangements
IPC: F01P5/06
Filed: 1972-04-27
Abstract: 1326328 Cooling engines GENERAL MOTORS CORP 27 April 1972 [3 May 1971] 19553/72 Heading B7H A cross flow radiator 12 has an engine driven fan 14 and a fan shroud 15 of unitary plastics material moulded integrally with compartments 33 and 34 constituting reservoirs for radiator liquid and windscreen washer liquid respectively. The shroud 15 includes a rectangular dished wall 16 having a rectangular flange 17 and a cylindrical flange 18 within which the fan 14 is mounted. The shroud 15 is secured to the radiator 12 by tabs 21 and 22 moulded integral with the flange 17.
Patent GB-704146-A (GB)
Title: Improvements in or relating to television receivers
Inventor: BEDFORD LESLIE HERBERT
IPC: H04N5/18
Filed: 1950-08-04
Abstract: 704,146. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 4, 1951 [Aug. 4, 1950], No. 19580/50. Class 40 (3) The D.C. level of the signal at the grid CRG of cathode ray tube CRT is restored to a level set by the brightness control DCC by means of a diode D1 which is rendered conducting only during the period corresponding to the " black porch" BP, Fig. 1 (a). Coil L1 is coupled to the normal E.H.T. coil (not shown) and has a voltage wave, Fig. 1 (e), induced in it of such amplitude that the diode conducts only at the negative extremity which coincides approximately with the centre of the "black porch." As an alternative, the voltage wave 1 (e) may be derived by subjecting the synchronizing pulses to differentiation. Reference has been directed by the Comptroller to Specification 655,197.
Patent GB-516634-A (GB)
Title: Improvements in or relating to the production of solutions of low substituted cellulose ethers
IPC: C08B11/00
Filed: 1938-07-01
Abstract: 516,634. Cellulose ether solutions; yarns and films; textile dressings. DU PONT DE NEMOURS & CO., E. I. July 1, 1938, No. 19612. Convention date, July 1, 1937. [Class 2 (ii)] Low substituted cellulose ethers are dissolved in aqueous caustic alkali in the presence of an alkali metal salt of an amphoteric oxide or hydroxide of an element of group II of the Periodic System, e.g. sodium zincate or sodium beryllate. In a modification, the salt is added to a preformed solution of the cellulose derivative. The alkali metal salt may be prepared by dissolving the amphoteric oxide, hydroxide, or salt thereof in the caustic soda solution. and may be present in concentration lying between 0.1 per cent. (calculated on the amphoteric oxide) and the saturation limit. In an example. (1) methyl cellulose soluble in cold caustic soda is slurried in a sodium zincate solution containing 6 per cent. of sodium hydroxide and 1-2 per cent. of zinc oxide, and the slurry cooled. The solution obtained is then brought back to room temperature. In other examples (2) glycol cellulose soluble in cold caustic alkali is slurried with sodium zincate solution and cooled, (3) cellulose glycollic acid soluble in dilute caustic soda is cooled with a solution of sodium zincate, (4) methyl cellulose insoluble in aqueous caustic solution is dissolved in a solution of sodium zincate, (5) glycol cellulose insoluble in aqueous caustic soda even on chilling, is dissolved in sodium zincate solution, and (6) cellulose glycollic acid insoluble in caustic soda solution even on chilling, is dissolved in aqueous sodium zincate. The solutions may be coagulated in yarn or film form or applied as textile or paper dressings and then coagulated.
Patent GB-753787-A (GB)
Title: Addition compounds of substituted xanthines
IPC: C07D473/10
Filed: 1954-07-05
Abstract: The invention comprises an addition compound of a phthalazine of the general formula <FORM:0753787/IV(a)/1> wherein X represents CH or N, and Y represents an alkyl or alkoxy group or the -NHNH2 group, with theophylline or theobromine, and the preparation thereof by reacting a phthalazine of the above general formula with theophylline or theobromine or by reacting an acid addition salt of the phthalazine with an alkali metal salt of theophylline or theobromine.  In the examples, the addition compounds of theobromine with 1,4-dihydrazino-phthalazine, 1,4 - dihydrazino - 6 - azaphthalazine and 1-hydrazinophthalazine, and theophylline with 1,4-dihydrazinophthalazine and 1,4-dihydrazino-6-azaphthalazine are prepared.  The theobromine addition compounds of theobromine with 1-hydrazino-4-methyl (and methoxy)-phthalazine are also referred to.
Patent GB-335280-A (GB)
Title: Process for the preparation of 2:3-butylene-glycol from carbohydrates
IPC: C12P7/18
Filed: 1929-06-26
Abstract: 335,280. Verhave, T. H. June 26, 1929. Addition to 315,263. 2, 3-butyleneglycol. - A mash consisting of a carbohydrate, a nitrogen compound, phosphate, and a carbonate, is subjected to microbiological fermentation by means of bacteria, capable of producing 2, 3-butyleneglycol, and after an initial fermentation period the alcohol which is also formed is distilled off. A new portion of the mash is added, reincculated with the bacteria, unless distillation has been carried out at a low temperature, and again subjected to fermentation, after which the alcohol and 2, 3-butyleneglycol formed are recovered. The procedures of distilling the alcohol formed, adding fresh mash and subjecting to fermentation, may be repeated at least once. Alternatively, the alcohol formed may be distilled after the first fermentation period and the residue used as a solvent in the preparation of a new carbohydrate mash. Air may be blown through the fermenting mash in the above processes, and the escaping gases washed for recovery of alcohol.
Patent GB-583359-A (GB)
Title: Improvements in or relating to button winding machines
IPC: D05B3/14
Filed: 1943-09-08
Abstract: 583,359. Sewing - machines. NEWTON, E. P. (International Button Hole Sewing Machine Co.). Sept. 8, 1943, No. 19677/45. Divided out of 583,310. Drawings to Specification. [Class 112] The description and drawings of a machine for winding thread round the thread shank attaching a button to material are identical with those of Specifications 583,310 and 583,358, the claims relate to the movement of the winder thread-guide parallel to its axis of rotation and to the means for ensuring that the cam controlling this movement makes an exact revolution independent of the relative speed of the winder.
Patent GB-389347-A (GB)
Title: A protector-case for books
IPC: B42D3/04
Filed: 1932-07-12
Abstract: 389,347. Cases for books &c. MARBOEUF, (nÚe RONDAS), M. H. J., 72, Boulevard de Courcelles, Paris. July 12, 1932, No. 19698. Convention date, April 13. [Class 18.] In a case for protecting books, periodicals, pamphlets, &c. of parallelopipedic form with one of the narrower sides left open for the introduction of the book &c., the rear side 3 opposite the open side is made in the shape of the rear edge of a book, and is provided with one or more openings 12 which may be covered by transparent material, such as glass, to exhibit the title &c. printed on the rear edge of the book. The larger sides 1, 1<1> of the case may be cut away at 5 at the open edges to facilitate withdrawal of the book &c. The rear side 3 of the case may be flat with rounded corners or, as shown, rounded and grooved along the longitudinal lines 8. The sides 1, 1<1>, 3 may. project above the plane of the top and bottom sides, which may be provided with longitudinal lines 14 resembling the edges of the leaves of a book.
Patent GB-922910-A (GB)
Title: Flame ionisation detector
IPC: G01N27/62
Filed: 1961-06-01
Abstract: 922,910. Determining relative quantities of fluid mixture constituents. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. June 1, 1961 [June 3, 1960], No. 19865/61. Class 37. In a method of detecting the presence of organic material in gases supplied to the flame of a flame ionisation detector which burns hydrogen or a mixture of hydrogen and other gases such as nitrogen, argon or helium in the presence of a separately supplied combustion supporting gas, the combustion supporting gas consists of a mixture containing carbon dioxide in addition to oxygen or a compound giving off oxygen. The carbon dioxide concentration of the mixture lies between 10-40% by volume with 20-35 % by volume as the preferred range. The oxygen content is kept lower than about 16% by volume, with a lower limit such that the flame is able to burn steadily. It is stated that compared with previous methods the method disclosed provides constant sensitivity of the flame detector over a greater range of concentration of organic material in gases to be tested. Specification 900,981 is referred to.
Patent GB-277157-A (GB)
Title: Improvements in and relating to electrical relays
IPC: H02P9/18
Filed: 1926-08-12
Abstract: 277,157. Apthorpe, W. H., and Cambridge Instrument Co., Ltd. Aug. 12, 1926. Electromagnetic switches; cutout arrangements. - Relays of the moving-coil type have magnetic means tending to restrain the movement of the contact-carrying pointer until the deflecting force of the moving coil attains a predetermined value. As shown in Fig. 1, the pointer 8 carries a small piece of magnetic material 11 arranged adjacent to a fixed permanent magnet 12. To vary the restraint, the magnet 12 may be adjustably mounted. This relay may be operated by earth faults, by having the windings 13, 14 on the limbs 2, 3 of the operating electromagnet 1 arranged so as normally to balance, leakage from the lines connected to windings 13. 14 producing a flux in the magnet 1 which by acting upon the current in the coil 6 fed from a shunt circuit produces a deflecting torque. When this torque is of a sufficient value, the coil moves to bring the movable contact 9 against a fixed contact 10. such movement removing the member 11 out of effective range of the magnet 12 and so producing a firm pressure between the contacts. Alternatively, the magnet 1 may be replaced by a gapped iron ring through the centre of which pass two main concentric conductors carrying currents in opposite directions, Fig. 2 (not shown).
Patent GB-478698-A (GB)
Title: Mechanical toy in which vehicles are propelled
IPC: A63H18/14
Filed: 1936-07-20
Abstract: 478,698. Toys. ARNOLD, C. July 20, 1936, No. 20019. [Class 132 (iii)] A toy locomotive r runs on a track bounded by the edge b<1> of a hole in a plate a<1> and comprising straight sections b and curved sections z and is driven by being connected by the hook v to the slide u having slots t engaging with pins y on the arm w keyed on the hollow driving shaft o having a spur gear n engaging with one or other of the pinions k, l for rotation in one direction or the other according to the position of the handle i secured to the spring motor frame f having rivets g engaging in curved slots h of a plate d. A pawl 8 for arresting the spring motor is pivoted on the handle i and can engage a member 10 driven by the spring motor. The locomotive r has hooks 4 engaging the track edge b<1> and the slide u has pins 3, 2 engaging the track edge b<1> and the edge of a top plate 5 respectively, for guiding the locomotive around the track. The locomotive has a hook 6 engaging an eye 7 on a car s and on backward movement of the locomotive r by actuation of handle i the car s is pushed into one of the sidings c, the hook 6 and eye 7 becoming disengaged when the locomotive r travels round a curved section z. The hook 6 and eye 7 are again coupled when the locomotive is again caused to move forward.
Patent GB-390378-A (GB)
Title: Process for the production of water-soluble vitamin concentrates
IPC: A61K31/51
Filed: 1932-07-15
Abstract: A water-soluble vitamin concentrate, especially a concentrate of the antineuritic vitamin, is produced by rendering alkaline a crude solution or extract, for instance to pH 10-13, extracting the vitamin with an organic solvent, extracting the vitamin from the organic solution by means of an acid, and removing the excess of acid by evaporating to dryness in vacuo, and dissolving in water.  The initial crude solution may be made by extracting a raw material such as rice polishings, yeast, or wheat germs with water, dilute acid, alcohol, &c. with or without the subsequent adsorption of the vitamin in fuller's earth, dissolving in an alkaline solution and then acidifying, and with or without treatment of the solution so obtained with a solvent such as alcohol and carbon tetrachloride or alcohol and chloroform and then removing the precipitated salts and excess acids.  The crude solution however obtained is made alkaline, for instance by means of sodium, potassium or barium hydrate or alkali carbonate, the solution is extracted at a low temperature such as 0 DEG  C. with an organic solvent such as ether, benzene, toluene, ethyl acetate, methyl acetate, isoamyl acetate, tertiary amyl alcohol, butyl alcohol, isobutyl alcohol, carbon tetrachloride, chloroform, and ethylene dichloride.  The extract is washed with a little cold water, and extracted with a dilute acid such as hydrochloric or acetic acid, the acid extract being then evaporated to dryness in vacuo and the vitamin dissolved in water.  If the crude solution used as starting material is alcoholic, the alcohol is first removed and an aqueous solution produced, which is then treated as described above.
Patent GB-135945-A (GB)
Title: Improvements in and relating to Lantern Slides.
Inventor: BARBER JAMES WILLIAM
IPC: G03B21/64
Filed: 1918-12-05
Abstract: 135,945. Barber, J. W. Dec. 5, 1918. Drawings to Specification. Lantern slides.-A slide is made up of separable elements consisting of a picture printed on a film or sensitive translucent paper, a pair of loose glass, mica, or other transparent plates, and a substantially rigid frame or holder made of sheet metal and adapted to receive the film and plates during projection. The holder may comprise two similar apertured rectangular plates bent along and joined at three edges, or one plate suitably shaped and bent along a line forming one edge of the holder and having the edges adjacent to the bend bent towards one another and joined.
Patent GB-762708-A (GB)
Title: Crystal rectifier and manufacture thereof
IPC: H01L23/04
Filed: 1954-07-09
Abstract: 762,708. Jointing. STANDARD TELEPHONES & CABLES, Ltd. July 9, 1954 [July 9, 1953], No. 20151/54. Class 83 (4). [Also in Group XXXVI] In a point contact crystal rectifier, the ends of the whisker electrode and an associated support pin are embedded in a body of metal. Fig. 1 shows an insulating tube 1 containing a semi-conductor crystal 7 welded, soldered or cemented to support-pin 5, and an associated whisker electrode 3 maintained in contact with its nickel support pin 2 by means of a body of metal 4. The body of metal 4 may consist of 90 per cent lead and 10 per cent antimony. The whisker plug assembly may be preformed as shown in Fig. 2, in which the ends of support 2 and whisker 3 are inserted in moulding cavity 15 which is filled with the metallic powder 4. Pressure is then applied by forcing down a plunger, to provide whisker assembly 2, 4, 3 similar to that shown in Fig. 1. Lead shot may be used for the moulding metal body and the grooved formation of the mould element 14 enables the lead to surround the end of the whisker element even if, as in the alternative shown in Fig. 6, this does not touch the end of the support 2. Other soft metal initially in the form of powder, beads or wire may be used to unite the whisker and support member.
Patent GB-257596-A (GB)
Title: Systems for the automatic regulation of electric generators driven at varying speeds
IPC: H02P9/24
Filed: 1926-08-16
Abstract: 257,596. Osterreichische Siemens- Schuckertwerke. Aug. 29, 1925, [Convention date]. Regulation, automatic.-The voltage, current, or output of a variable speed generator, is regulated automatically by means controlling the number of parallel-connected resistances in the controlled circuit, e.g. the field circuit of the machine or a load circuit side as a train lighting circuit. The regulators may be in shunt or series with the resistances they control. The circuit of the field b of the generator a shown in Fig. 1 includes a resistance c, and resistances d, e in parallel therewith are controlled by vibrating regulators comprising contacts j, k in series with each. A third regulator has a contact i in parallel with all. The shunt coils of the regulators are in series with a resistance o and the regulators are adjusted to cease to close their contacts in the sequence i, j, k as the generator voltage rises. Current coils may replace or assist the voltage coils; the figure shows current coils on each regulator shunted by a common resistance x to reduce their bulk. In a resistance method of adjusting the regulators an adjustable resistance is in series with all and further adjustable resistances are in shunt respectively with the coils of certain regulators. Lamp regulating resistances may be arranged according to the awaiting switches, such as centrifugal switches, directly operated by generator speed may be employed in place of the vibrating regulators.
Patent GB-726291-A (GB)
Title: Improvements in or relating to method of manufacturing thermoplastic pellets
IPC: B29B9/06
Filed: 1953-07-21
Abstract: 726,291. Moulding thermoplastic pellets. STANDARD OIL DEVELOPMENT CO. July 21, 1953 [Sept, 29, 1952], No. 20203/53. Class 87 (2) To make thermoplastic pellets in the form of cubes # inch square (e.g. from a copolymer of isobutylene and styrene) the plastic is fed into an extrusion machine 10 in which it is heated and extruded through nozzle 12 in the form of adjacent rods 20 and from there between cooled embossed rollers 21 which flatten the rods and cause adherence at the point of contact; the ribs may be disposed in a spiral, circular, diamond or rectangular pattern. The web 23 is further cooled in a water trough 24 and passes past air-jets 25 onto a driven endless belt 26 which feeds it into a pelletizer. 32 where it is cut to form the cubes which emerge from shoot 33 and have any electrostatic charge removed by radium-containing bar 35.
Patent GB-1150703-A (GB)
Title: An Improved Mixing Apparatus
IPC: B01F5/00
Filed: 1966-05-06
Abstract: 1,150,703. Continuous discharge mixers. ALGEMENE KUNSTZIJDE UNIE N.V. 6 May, 1966 [12 May, 1965], No. 20215/66. Heading B1C. Apparatus for mixing particulate or granular material comprises a plurality of containers (as shown, provided by partitions 4,5, 6) having a common closable outlet 3, and a mixer inlet 2 arranged to direct material into one of the containers; the other containers have inlets at successively higher levels. In the embodiment shown, the central container fills and then overflows into the next, and so on; when all are full the outlet is opened and all discharge simultaneously. The annular partitions may be conical or cylindrical. In another embodiment (Fig. 2, not shown) the partitions are radial and also of different heights, in a third embodiment (Fig. 3, not shown) the radial partitions form containers fed by a common inlet tube (11) having openings (12, 13, 14, 15) at successively higher levels with each container. If liquids are to be mixed, each container must be provided with a separately closable outlet.
Patent GB-1152300-A (GB)
Title: An apparatus and a method for Crucible-Free Zone-by Zone Melting of a Crystalline Rod
IPC: C30B13/32
Filed: 1968-04-29
Abstract: 1,152,300. Zone-melting. SIEMENS A.G. 29 April, 1968 [29 April, 1967], No. 20269/68. Heading B1S. In the passage of a molten zone through a rod, the molten zone is formed by two induction coils which are moved relatively in a direction normal to the axis of the rod as required to correspond to the thickness of the molten zone. The process may be applied to passage of a molten zone through a portion of a rod which is (a) tapered, (b) constricted, e.g. 2 mm thick and 20-25 mm long, or (c) being stretched or compressed. The coils are co-axial (Fig. 4) for the thickest molten zone 13, and moved apart about a pin 3 (Fig. 3) for a thinner molten zone 12. Separate pins may alternatively be employed for each coil. A single bevel gear wheel meshing with two bevel gear segments (Figs. 1 and 2) may effect simultaneous movement of both coils. The coils may be of one or more turns. They may be relatively movable in the axial direction. They may be spaced 1 mm apart in this direction. The coils may be connected in series or parallel with respect to HF current and cooling liquid.
Patent GB-1391511-A (GB)
Title: Plastics crate for bottles
IPC: B65D1/24
Filed: 1972-05-02
Abstract: 1391511 Crate INDUSTRIELE ONDERNEMING WAVIN NV 2 May 1972 [5 May 1971] 20404/72 Heading B8P To provide upper handling flanges which do not project beyond the outer circumference of a plastics crate, at least one pair of opposed side walls have upper parts which converge with respect to one another. As shown both pairs of opposed side walls 3, 5 and 4, 6 have converging upper parts 3b-6b and handling flanges 10-13. To facilitate removal from its mould the crate may be provided with corners whose upper parts (14b, Fig. 3) are either perpendicular to the crate bottom 2 or inclined outwardly.