baber/WOPTO huggingface dataset:
Patent GB-181414-A (GB)
Title: Improvements in or relating to money delivering apparatus
IPC: G07D1/00
Filed: 1921-02-04
Abstract: 181,414. Southg-ate, J. F., and Carey, W. Feb. 4, 1921. Money-delivering apparatus.- The actuation of a key-lever operates a coin-ejector at the base of a corresponding coin receptacle to eject one or more coins therefrom, or operates to move a selecting-member or yoke into engagement with a. group of levers, each of which is connected to an ejector to discharge coins from a group of receptacles simultaneously and of a sum equal in value to that indicated on the particular key-lever operated. Each ejector lever and yoke for operating a combination of ejector levers is pivotally mounted preferably on the same axis 25 and the yokes are arranged to extend and engage with the ejector levers, some on one side and the others on the other side of the axis, the levers or yokes being operated by key levers mounted on an axis 156 and the ejector levers being normally retained upright by springs 152, 153. Fig. 22 shows the details of one section of the apparatus and the arrangement for enabling any number of shillings from one to ten to be ejected from receptacles such as 9 which are carried by a support 1 extending across the front of the machine. For ejecting one shilling, the key-lever 54 is depressed to operate an ejector lever 37 and ejector 20 thereof by means of a wire 105 and shackle 106, the ejector 20 sliding underneath the shilling receptacle 9. For ejecting six shillings, 'the key-lever 59 is depressed, this lever being connected by a wire 119 to a yoke 120 pivoted on a rod 72, the yoke 120 being connected by a wire 121 to the ejector lever 37 and by a wire to a yoke 118 which engages ejectors 40, 41, each of which will eject a half-crown. In the support 1 and below-each receptacle is arranged a slideway 19 for the reception of the ejector 20 provided with a spring-pressed pawl 21. The pawl extends upwardly through a slot 18 in the support 1 and has a tooth 22 and a tail 23, which during the forward stroke of the ejector engages with the top of the ejector and limits the upward movement of the tooth 22, a spring-pressed plunger 29 provided in the ejector tending to hold the pawl in this position. This construction causes the coins above that being ejected to be raised at their forward edge, whereby any tendency for the coin next above that being ejected to enter the slot is prevented.
Patent GB-466528-A (GB)
Title: Improvements in or relating to colour kinematography
IPC: G03B33/00
Filed: 1936-02-11
Abstract: 466,528. Colour kinematography. CARPMAEL, M. H. (Wolf, G.) Feb. 11, 1936, No. 4173. [Classes 97 (i) and 98 (ii)] In apparatus in which separate films are simultaneously exposed through differently coloured filters, the films are fed in adjacent parallel planes to a point just short of the gate and there diverge to pass through two gates disposed practically at right-angles to each other. As shown the films 4, 24 are fed by sprockets 6, 26 to gates 16, 36 for exposure through an objective 2 and a beam-splitting prism 21, colour filters 17, 37 being employed. The films are fed respectively by claws 7, 27, carried on rods 10, 30 connected at one end to crank-pins 9, 29 on pinions 8, 28, the other ends of the rods sliding in bars 11, 31 respectively. Registering pins 12, 32 are reciprocated in synchronism with the feed by levers 14, 34 pivoted at 15, 35 and connected to the crank-pins 9, 29 by levers 13, 33. To permit withdrawal of the pins 12, 34 during film threading the pivots 15, 35 are carried on levers manually movable to withdraw the pins when the claws 7, 27 are disengaged from the film. The pinions 8, 28 mesh together and are driven from the same shaft, the pinions having the same number or different numbers to teeth in which case the films are fed at different speeds. For three-colour photography a bipack may be run through one gate and a single film through the other. Alternatively the single film may be replaced by a matt or sensitive film which may be observed through a magnifier during exposure. For sound films the sound may be impressed on any one of the colour films or, where the sound record is to be developed differently from the picture record, the single film may have the sound record impressed upon it together with a picture record and so can be used for checking and synchronizing the sound record with the colour records on the bipack. For three-colour photographs the extra sound film may be run with one of the others as a fourth film.
Patent GB-755241-A (GB)
Title: Improvements in mining machines
Inventor: ANDERSON ALEXANDER
IPC: E21C25/06
Filed: 1954-02-12
Abstract: 755,241. Excavating earth and rock. ANDERSON, BOYES & CO., Ltd. Feb. 8, 1955 [Feb. 12, 1954], No. 4177/54. Class 68 (1) A mining machine of the kind having a rotary cutting implement 12 extending unilaterally of the machine and rotatable about a horizontal axis which is normal to, or oblique to, the direction of travel of the machine has a gear head casing comprising a box-like section 11a bolted to the machine and a main section 11 secured to the section 11a, the section 11 being recessed in its upper and lower sides at 15, 16, Fig. 3, to allow a large clearance between an armoured conveyer 13 and the section 11. The larger gears 14, 18, 23 in the section 11 are disposed to each side of the waisted portion 15, 16. The cutting implement 12 may be disposed on either side of the machine by turning the section 11 through a half-circle about a longitudinal axis of the machine. The section 11 may be adjusted vertically by an eccentric spigot or other means.
Patent GB-1167718-A (GB)
Title: A method and apparatus for the treatment of materials to be cooled
IPC: F25D3/11
Filed: 1967-01-27
Abstract: 1,167,718. Freezing apparatus. BRITISH OXYGEN CO. Ltd. 27 Jan., 1967 [28 Jan., 1966], No. 4227/67. Heading F4H. Cooling apparatus comprises a first zone for pre-cooling the articles to be cooled by contact with the vapour of a boiling refrigerant, a second zone in which the articles are further cooled by contact with the refrigerant in the liquid or vapour phase, a third zone in which the articles are allowed to equilibrate, and a rotatable member, such as a disc, for conveying the articles through at least one of said zones. As shown in Fig. 1 a single disc 1 rotating about a vertical axis conveys the articles through an annular path from an inlet 7 to an outlet 8, the three zones A, B, C comprising portions of the annular path. Zone B is provided with sprays for liquid refrigerant or alternatively the disc is tilted so that a portion of its periphery dips into a liquid refrigerant bath. Vapour from zone B is passed through the pre-cooling zone A. The zones may be physically separated by doors, curtains or fluid curtains. In the embodiment of Fig. 4, two discs 13, 14 rotate on a common axis in separate cylindrical housings which constitute the first and third zones, a transfer path 26 being provided between the zones. The transfer path comprises the second zone. In other embodiments three discs are provided, the discs being arranged either in a horizontal line (Fig. 6, not shown) or with two discs arranged one above the other on a common axis, the third disc being located on a separate axis at an intermediate level (Fig. 7, not shown) or on a common vertical axis. The refrigerant may be liquid nitrogen or air and the articles to be cooled or frozen may be fruits or metallic components. The discs may be made of stainless steel, nickel iron, monel metal, aluminium or copper alloys which may be covered with polytetrafluoroethylene.
Patent GB-966449-A (GB)
Title: Magnetic storage drum
IPC: G11B25/02
Filed: 1963-02-01
Abstract: 966,449. Magnetic drums. STANDARD TELEPHONES & CABLES Ltd. Feb. 1, 1963 [Feb. 3, 1962], No. 4262/63. Drawings to Specification. Heading G5R. In a magnetic storage drum, the magnetisable layer is supported on a material which is non- conductive and non-magnetic. The supporting material may be a layer on a cylindrical metallic drum, and its presence reduces the induction of eddy currents in the drum while recording; this allows the density of information units recorded to be increased.
Patent GB-640075-A (GB)
Title: Improvements in or relating to the manufacture of cellulose esters
IPC: C08B3/22
Filed: 1948-02-13
Abstract: Cellulose is esterified under conditions such that an organic ester is obtained in solution and the cellulose ester is subjected to ripening in the solution; the solution is filtered and the ripened ester is precipitated from the filtered solution; the precipitated ester is stabilized by boiling it under pressure with water of alkalinity below 5 parts per million, reckoned as calcium carbonate, and the stabilized cellulose ester is subjected to extraction with an aqueous lower aliphatic alcohol containing 1-3 carbon atoms.  The ester obtained has good moulding properties in that it is not only substantially free from brittleness, haze, and colour, but may be subjected to heat and pressure without developing a high degree of colour or suffering any substantial loss of viscosity.  The cellulosic material may be cotton, cotton linters, purified wood-pulp, or regenerated cellulose.  The ester obtained may be an acetate, propionate, butyrate, or other carboxylic ester or mixed ester.  In the production of cellulose acetate, the cellulose may be pretreated with acetic acid containing a little sulphuric acid, and then acetylated with acetic anhydride in presence of sulphuric acid or other catalyst and sufficient acetic acid to dissolve the cellulose ester formed. Water may be added to the solution to destroy any unreacted acetic anhydride and to enable ripening to take place. Part or all of the sulphuric acid catalyst may be neutralized. Ripening may be effected at raised temperature.  Before filtering, the solution may be diluted with 40-110 per cent of its weight of a 20-50 per cent acetic acid solution.  The dilution may bring into solution inorganic materials, e.g. magnesium sulphate crystals, which have been formed during neutralization of the sulphuric acid. Filtration of the ripened ester may be effected at 30-60 DEG  C.  The cellulose acetate may be precipitated by adding a large amount of water or other non-solvent to the solution.  After being washed, the cellulose acetate is stabilized by heating under pressure for 1/2 to 6 hours with distilled water or water which has been demineralized and which contains less than 5 parts per million alkalinity, as defined above.  The stabilized cellulose acetate is then extracted, e.g. with aqueous methyl, ethyl or isopropyl alcohol.  In an example, 90 per cent aqueous ethyl alcohol is used.  The ethyl alcohol concentration is preferably not less than 40 per cent, and the extraction is best carried out between 30 DEG  C. and the boiling point of the alcohol.  The extraction with alcohol may be repeated several times or the treatment may be of a continuous nature, alcohol being added continuously or intermittently while corresponding amounts are removed.
Patent GB-490528-A (GB)
Title: Improvements in or relating to steam heating systems
IPC: F24D1/00
Filed: 1937-02-13
Abstract: 490,528. Radiators and systems for heating buildings. HIGHFIELD, J. S., and HIGHFIELD, W. E. Feb. 13, 1937, No. 4376. [Classes 64 (i) and 64 (ii)] A hot water radiator 1 is provided with a tubular heating unit 2 in the lower connecting passage 3. The tube 2 is connected to a steam supply 4 and is closed except for a small opening 6 at the remote end. Steam condenses in the tube 2 and only water flows through the aperture 6, thereby avoiding noise. Excess water escapes through an overflow 7. If a low steam pressure is used, the full width of the tube 2 may be open at the remote end. In a modification of the heating unit, Figs. 2 and 3, the tube at its inner end is filled with copper gauze or wire 11 and at its outer end is collapsed into the section 10. In a heating system, Fig. 4, radiators 13 operating as described above have their heating units connected to a low pressure boiler 14 supplied with water from a tank 22 through pipe 15. To prevent water passing from the radiators into the boiler due to condensation therein, a vacuum-breaking valve 18 is provided and the connecting pipe 19 to each radiator is connected to pipe 17 at a point above the top of the radiator so that water rises in this pipe only to the level in the radiator. The return pipes 20 from the radiators discharge into pipe 21 and thence to tank 22 which is connected to the boiler. Water in the tank 26 may be preheated by steam supplied to a unit 25 constructed as described above. To obtain a hot water supply for domestic purposes, a tank 29 supplied with cold water from pipe 15 is heated by a similar unit, or preferably by a tubular heater 31 supplied with steam from pipe 17. A supplementary electric heater 36 may be provided.
Patent GB-137413-A (GB)
Title: Improvements in or relating to toys, kindergarten appliances and the like
IPC: A63F3/04
Filed: 1919-02-22
Abstract: 137,413. Mathews, T. Feb. 22, 1919. Word-building and like apparatus.-Relates to toys, educational appliances, &c. of the type in which loose pieces bearing letter or designs are detachably fitted in a carrier. According to the present invention, the carrier is formed with holes corresponding to the pieces and is backed by twill or other flexible material. In the arrangement shown, a sheet of cardboard 1, with holes 2, is backed with flexible material 3 and the pieces 4 are marked with letters. The carrier or the pieces may be made of rubber or similar material to increase the friction between them.
Patent GB-774736-A (GB)
Title: Improvements in or relating to tents
IPC: E04H15/20
Filed: 1955-02-15
Abstract: 774,736. Inflatable vessels. BAUMANN, L. Feb. 15, 1955 [Feb. 17, 1954], No. 4486/55. Class 113. [Also in Group X] In an inflatable vessel made from the floor of a tent, said floor is made of rubber or synthetic material or of canvas coated with such materials and has inflatable chambers or passages p on the lower surface of its main area so that air can circulate through spaces d between the passages p which are interconnected by passages g to permit inflation by a single valve f. The border portions of the floor also have inflatable passages p of which one pair only is shown, these passages being inflatable independently of those in the main portion of the floor. The vessel is formed by folding up the border portions and securing them with press studs or other fastenings h.
Patent GB-744311-A (GB)
Title: Improvements relating to the measurement of weight, density or mass per unit area of materials
Inventor: GILMAN SAMUEL
IPC: G01N23/08
Filed: 1953-02-18
Abstract: 744,311. Electric tests. INDUSTRIAL MACHINERY CO., Ltd. Jan. 29, 1954 [Feb. 18, 1953], No. 4525/53. Class 37. [Also in Group XL (b)] In apparatus for measuring weight density or mass per unit area of a material the moisture content of which varies, the output of a radioactive gauge which is relatively slow in its response and which is independent of moisture content, is combined with that of a further gauge, for example a dielectric gauge in such a way as to alter the datum of the further gauge to eliminate the effect of moisture while maintaining the speed of operation of the dielectric gauge. As shown the output of a Beta-ray gauge 4 is averaged by condenser 14 and resistance 13 and fed through a cathode follower valve VI and stored in one of a number of condensers 20 mounted on a rotating assembly. The output of the dielectric gauge 2 which is spaced from the Beta-ray gauge in the direction of movement of the material is also connected to an averaging circuit 15, 16 and applied to the grid of a triode V3. Condenser assembly 20 rotates in synchronism with the movement of the material under test so that when the condenser representing the density of a particular part of the material under test reaches fixed contact 24 the material which produced the change is being examined by the dielectric gauge. This charge is applied to the grid of triode V2 and between the cathode of this valve and V3 is the coil 31 of a polarized relay which if the outputs of the two meters differ due to moisture in the material causes A.C. motor 35 to run in one direction or the other to reposition a potentiometer slider 38 this altering the datum of the dielectric gauge so that an output on line 40 gives the true density of the specimen. In a modification (Fig. 5) the averaged output of the dielectric gauge 41 is fed through a condenser 44 to the grid of a triode 45 while the output of the Beta gauge 42 is fed through a resistance 48 to the same grid, the condenser and resistance having a common connection to the grid. The dielectric gauge produces an output including both direct and alternating components the direct components being eliminated by condenser 44. Condenser 44 and resistance 48 smooth the output of the Beta gauge thus determining the direct potential of grid 45. The values of condenser 44 and resistor 48 may be so chosen that the output across the cathode resistor is effectively the Beta gauge output. Specification 558,491 is referred to.
Patent GB-908211-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F28C3/14
Filed: 1959-02-09
Abstract: 908,211. Thermal regenerators. SIEMENSSCHUCKERTWERKE A.G. Feb. 9, 1959 [Feb. 8, 1958; Aug. 12, 1958; Jan. 17, 1959], No. 4525/59. Class 64 (1). In an apparatus such as a thermal regenerator in which heat is exchanged between a fine-grain, particulate, flowable mass, and a gas flowing in cross flow with respect to the mass, the mass particles move all in the same direction within the heat exchange zone and are guided between walls which allow passage therethrough of the gas, the arrangement being such that the gas as it flows through the mass, meets particles of successively changing temperature the first particles contacted being those nearest in temperature to that of the gas. In Fig. 2 the walls are formed of inclined slats 21 spaced apart in the direction of flow of the particles and the gas stream 29 may be directed by ceramic guide walls such as 25 and baffles 28, several times through a descending particle stream 23. A heat exchange zone may comprise a plurality of particle streams or part zones, arranged one behind the other in the direction of gas flow. The particle streams may be vertical (Figs. 2 and 9) or inclined. Fig. 7 shows arranged in each of the heated and heating gas zones A, B respectively of a thermal regenerator inclined heat exchange part-zones 61, 62, 63a, 63b, the particles after passing through the zones A, B arranged one above the other being recycled to zone A through a pipe 73 by a conveyer device 74. In each of the zones A and B gas passes in series through part-zone particle streams of progressively changing temperature (these zones being indicated by shade lines in the drawing), movement of the particles from part-zone 63a to part-zone 63b being effected by a conveyer device 69a. Fig. 9 shows an arrangement in which the particles flow in series-connected streams or part-zones 93-96 through the gas stream 89, movement of the particles from the lower end of one stream to the upper end of the next being effected by pneumatic conveyers 100. In a further regenerator arrangement described (Fig. 5, not shown), only the higher temperature zone operates in cross-flow, the lower temperature zone operating in counterflow.
Patent GB-382167-A (GB)
Title: Improved process for manufacture of sodium bicarbonate
IPC: C01D7/16
Filed: 1932-02-16
Abstract: Sodium bicarbonate is obtained by the action of ammonia and carbon dioxide or ammonium bicarbonate on a sodium salt in the presence of a soluble salt of an amine whereby the sodium bicarbonate is precipitated by the conjoint action of amine and ammonium bicarbonates.  The process may be carried out in a cycle by adding to a solution containing soluble salts of amines and ammonium, a soluble sodium salt and ammonia and carbon dioxide or ammonium carbonate, an amount of ammonium salt corresponding to the sodium salt introduced being precipitated and removed.  Carbon dioxide or ammonia and carbon dioxide, is then added to the remaining solution, sodium bicarbonate being precipitated and a solution of the same composition as that initially employed remaining.  This is returned to the first step of the process. According to one example sodium chloride is added to a solution containing sodium chloride and trimethylamine chloride and saturated with ammonium chloride.  The solution is treated with ammonia and carbon dioxide whereby ammonium chloride equivalent to the freshly introduced sodium chloride is precipitated and separated. The remaining solution is treated with carbon dioxide or carbon dioxide and ammonia, sodium bicarbonate being precipitated leaving a solution of the same composition as that originally employed for starting a new cycle.  According to a second example the starting solution is saturated with ammonium chloride and contains mono-, di- or trimethyl ammonium nitrate or a double nitrate of amine and ammonium.  Sodium chloride, ammonia, and carbon dioxide are added and the cyclic process is carried out as in the previous example. Ammonia for the process may be obtained by decomposing the ammonium chloride produced.  Wash water from a previous operation may be used for replenishing the water lost in the process.
Patent GB-657456-A (GB)
Title: Improvements in collapsible frames for cots and the like
IPC: A47D9/00
Filed: 1949-02-19
Abstract: 657,456. Folding furniture frames. PARKER, ELLISON, Ltd., J., and ROBINSON, N. E. Feb. 19, 1949, No. 4561. [Class 52 (iii)] A frame or stand for a cot, bath, table top &c. comprises a horizontal frame A supported by pairs of U-shaped legs a<SP>1</SP>, a<SP>2</SP> hinged together at their crossing points one pair a<SP>1</SP> being formed in two parts hinged together by brackets a3. To fold the shorter parts of the legs a<SP>1</SP> are folded down on to the longer parts causing the legs a<SP>1</SP>, a<SP>2</SP> and the horizontal frame A to fold together into a substantially parallel plane. For supporting a cot, or a bath, supports a<SP>4</SP> may be suspended from the horizontal frame A.
Patent GB-795440-A (GB)
Title: Method for making anhydrous alkali metal alcoholates
Inventor: MEYER ROBERT HOLSTEAD
IPC: C07C43/13
Filed: 1957-02-12
Abstract: Anhydrous alcoholic solutions of alkali metal alcoholates are obtained by forcing a liquid monohydric alcohol containing at least 2 carbon atoms to rise through a bed of at least 0.1 molar excess of solid particles of sodium hydroxide or potassium hydroxide at a temperature between 70 DEG  and 200 DEG  C., at which the alcohol is liquid, and recovering an alcohol solution of the anhydrous alkali metal alcoholate from above the bed, while drawing off concentrated aqueous alkali metal hydroxide from beneath the bed, the bed being maintained at substantially constant volume by addition of solid alkali to replace that which is consumed and withdrawn.  Suitable alcohols are, for example, aliphatic alcohols containing 2 or more carbon atoms, cyclo-aliphatic alcohols and aryl aliphatic alcohols, such as benzyl alcohol, and also substituted alcohols.  The alkali metal alcoholates may be separated from the solutions by conventional distillation and evaporation methods.  In the examples: (a) a glass column containing glass rings is filled with potassium hydroxide pellets and 3-pentanol is fed in from the bottom; anhydrous potassium alcoholate solution is obtained from the top of the column; (b) the process of (a) is repeated using (i) ethanol, (ii) 2-propanol, (iii) diethylaminoethanol, (iv) benzyl alcohol, and (v) 2-butanol to give the corresponding potassium alcoholates, and (c) the process of (a) is repeated using sodium hydroxide instead of potassium hydroxide and the following alcohols: (i) dipropylene glycol monophenyl ether, and (ii) tetrapropylene glycol monoethyl ether to give the corresponding sodium alcoholates.