baber/WOPTO huggingface dataset:
Patent GB-391757-A (GB)
Title: Improvements in or relating to pumps
IPC: F04B49/00
Filed: 1931-07-28
Abstract: 391,757. Control of several motors. SIEMENS-SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. July 28, 1931, No. 21582. Convention date, Aug. 11, 1930. Void [Published under Sect. 91 of the Acts]. [Class 38 (iii).] The delivery of a pump, comprising pistons 1, 2, driven by electric motors and having a common suction 7 and a common delivery 8, is regulated by varying the phase of the pistons to one another by rotating the stator of one of the motors. An arrangement is referred to wherein three plungers are employed and the stator of each motor is rotatable.
Patent GB-705582-A (GB)
Title: Improvements in water pistols and the like
IPC: F41B9/00
Filed: 1950-09-02
Abstract: 705,582. Water pistols. CARDWELL. S. O. Aug. 29, 1951 [Sept. 2, 1950], No. 21695/50. Class 132(3) A water pistol has a piston b comprising two cup washers placed base to base and movable in a cylinder c. The piston is fltted to a tube a which may reciprocate in bearings e, d the latter bearing also forming a front end closure for the cylinder c. On operating the trigger h, a catch lever g hinged to the tube a is engaged and the piston-tube assembly moves forwardly against the action of a compression spring f. Water is thus drawn into the cylinder c from a detachable container on via a feed. pipe and non-return valve 1, a valve k in the tube a being closed. At the end of the trigger stroke the catch g is cleared and released by the trigger, the rapid rearward movement due to the spring f causing water to be forced past the valve k and through the muzzle end of the tube a. An air release valve m is provided in the container n.
Patent GB-903517-A (GB)
Title: Method and apparatus for extruding plastic material to reduce the volatiles content
IPC: B29C48/76
Filed: 1960-06-21
Abstract: 903,517. Automatic control systems for extrusion-drying machines. PHILLIPS PETROLEUM CO. June 21, 1960 [July 9, 1959], No. 21697/60. Drawings to Specification. Class 38 (4). [Also in Group V] In an automatic control system for an extrusion drying machine, for reducing the volatiles content of a plastic material, the position of a block determining the pressure applied to the material being masticated between feed screws, is controlled in dependence on the electrical power supplied to a motor driving the feed screws and the temperature of the material after treatment. The temperature of the plastic material is determined by an iron-constantan or copper-constantan thermocouple and an error signal representative of temperature deviation from a desired value is fed to a recorder-controller to vary the magnitude of a reference signal to which the electrical power is controlled. The electrical power to the motor is measured by a wattmeter and a power signal is compared with the reference signal and a resultant error signal is used to control an electro-hydraulic valve motor for positioning the pressure block.
Patent GB-833806-A (GB)
Title: Treatment of hydrocarbon oils
IPC: C10G19/00
Filed: 1957-07-09
Abstract: <PICT:0833806/III/1> <PICT:0833806/III/2> A treatment for hydrocarbon oils to combat their continual tendency to deteriorate comprises continually recycling the oil through a treating zone in contact with solid metallic calcium and a solid alloy of sodium with lead or with lead and tin maintained in contact with each other.  The metal may be incorporated in an element which is inserted in an oil storage tank where the oil is circulating, e.g. by natural convection, or in the crank-case of a vehicle in which case the element may be incorporated with the drain plug.  Fig. 2 is a section of a crank-case 5 showing the drain plug 1 with an extension 2 to which is threaded an element composed of an alloy of sodium with lead or lead-tin solder 3 and calcium 4 in contact with the oil 6.  The examples show the comparative results obtained using elements composed of calcium, sodium, the above-mentioned alloys, copper and iron singly and in various combinations.  In the embodiment shown in Fig. 3 a threaded head 11 carries a threaded extension 12.  The upper portion 13 consists of a base 16, tapped to engage with extension 12, carrying a wire mesh basket 14 enclosing element 17 of solid calcium metal and element 18 of solid sodium-lead-tin alloy in particulate form.  Parts 11 and 16 may be of steel. Specifications 783,165 and 783,166 are referred to.
Patent GB-975783-A (GB)
Title: Method of making an article of a polymeric resin having co-ordinated surface relief and colouring
IPC: B29C51/10
Filed: 1963-05-31
Abstract: 975,783. Vacuum forming plastic sheet material; laminates. UNITED STATES RUBBER CO. May 31, 1963 [July 16, 1962], No. 21807/63. Headings B5A and B5N. Plastic sheet material is provided with an embossed and coloured surface by a method which comprises applying to the surface of a former a coloured resinous coating layer then pressing the plastic sheet, heated for example with radiant heaters, on to the former. As described a forming grid or plate 17 has applied to the upper surface thereof two differently coloured resinous pigmented coatings 13, 14 and is placed on a perforated table 25 above which is placed a frame 20 in which the plastic sheet 10, which may be rigid or flexible, is clamped. The underside of the table 25 is connected to vacuum so that the sheet 10 is applied to the upper coated surface of the frame and assumes a complementary embossed shape. The sheet is then cooled, the vacuum broken and the frame 17 removed so that the coatings 13, 14 are transferred to the embossed sheet 10. If necessary a suitable adhesive may be applied to the coatings before vacuum forming the sheet. The thermoplastics sheet may comprise a vinyl plastics material such as polyvinyl chloride or a mixture thereof with other monomers such as vinyl acetate or diethyl maleate, an acrylic plastics material such as methyl methacrylate or admixtures thereof with other monomers such as polystyrene, polyethylene, polypropylene. A.B.S. rubbers, or mixtures thereof with PVC, or natural rubber, are also suggested, these being vulcanized after forming. The thermoplastic sheet may also be blown or expanded, or fabric- or paper-backed, or both, for example solid or expanded vinyl coated fabric, or burlap-backed sponge rubber may be used. The coatings may also comprise any of the above mentioned resins and are applied by spraying, brushing or rolling. They, and/or the base material may contain luminiscent or reflective substances, or may be metallized.
Patent GB-1270814-A (GB)
Title: Telephone answering machines
Inventor: MULLER WILLY
IPC: H04M1/65
Filed: 1969-04-29
Abstract: 1,270,814. Telephone answering machines. W. MULLER. 29 April, 1969 [14 June,1968], No. 21865/69. Heading H4K. [Also in Divisions G4-G6] A telephone answering machine includes a recording device and its drive arrangement together with a timing mechanism arranged as a sub-assembly on a frame which fits into a chassis forming part of a housing. The answering machine is of the type where a message can be recorded and checked and the machine then set to replay this message to a caller. Construction.-(a) Drive and control: Frame 20 supports shafts 34, 35 and 36 on which are mounted the recording medium carrier, intermediate gearing and control switching unit disc 22 respectively. Motor 23 is mounted on the frame and drives carrier 21 through drive wheels 25 which are supported from pivotal lever 26 and engage with the drive shaft 24 and the periphery of carrier 21 when an electromagnet is energized. Attached to disc 22 is timing disc 37 which has printed contact tracks on its lower surface which co-operate with brushes 40 to make the various connections in the correct sequence during operation of the machine. The intermediate gearing mounted on shaft 35 transmits the drive from the carrier 21 to the disc 22 so that the latter only revolves once for 16 revolutions of carrier 21. (b) Recording head: The recording head is mounted from shaft 33 which is pivotally mounted in frame 20 and has, at one end, a follower arm which co-operates with a cam 43a attached to disc 22. At the other end support 58 has a tab 69 which together with struts 66, 67 and fork shaped part 54 form a parallelogram linkage for head B. Spring 71 maintains the linkage under tension and the height of the head above carrier 21 can be adjusted by bending tab 69. In operation as disc 22 and carrier 21 revolve the head is moved radially across the recording medium by the action of cam 43a. (c) Recording medium carrier: An annular piece of foil 21a is supported at its inner periphery on a hub 44 which also carries a sheet metal turntable 45 which is encased in a silicone rubber covering 46 which is made cylindrical around the periphery of the wheel for engagement with drive wheel 25. Operation.-A message is recorded on the tape by putting switch S2 to the record position and closing microphone push button St to energize call circuit 79 causing relay AR to pick up and start motor M. The erase head oscillator 75 is energized under the control of timing disc contact m3 for a period corresponding to one revolution of carrier 21. The message is recorded by head TK and when the timing disc has completed one revolution contacts m1, m2 and m4 operate to switch off the machine. To check the recording switch S2 is put into the play-back position and operation commences as before using head TK to read the message and microphone Mi as loud-speaker. Erase head LK is not energized. The machine is connected to telephone lines a, b by operation of switch S2 and on receipt of a call signal circuit 79 operates after a delay to switch on the machine.
Patent GB-651597-A (GB)
Title: Improvements in or relating to centrifugal separators
IPC: B04B15/06
Filed: 1948-08-19
Abstract: 651,597. Centrifugal-separators. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN, Ltd. Aug. 19, 1948, No. 21906. Convention date, Sept. 8, 1947. [Class 23] In a self-washing separator 10, including a bowl 11 having a disc pack 23 and a peripheral outlet 18 for washing liquid controlled by a valve 18<SP>1</SP>, deflector means 42 are provided outside the bowl for directing washing liquid discharged from a container 35 against the inner edges 28 of the disc pack. The deflector has circumferentially spaced holes 44 and is fixed to the container discharge 36. A milk feed unit 48 having a valve 51 is raised to supply washing liquid through the holes 44 and the annular space between the milk feed tube 50 and the deflector. A sheet metal casing 38 has collecting chambers 39, 40 provided with discharge tubes 40<SP>1</SP>, 41, and supports the container. An aperture in the base of the casing permits the bowl to be directly driven by an electric motor 33. The Specification states that the separating speed is 10,000 r.p.m. and that the valve 18<SP>1</SP> opens at 6,000 r.p.m. In a modification the deflector is replaced by a thicker element having peripheral flutes forming passages for the washing liquid. Specifications 614,501 and 643,716 are referred to.
Patent GB-1426297-A (GB)
Title: Stencil sheet and method of making an imaged stencil sheet
IPC: B41N1/24
Filed: 1973-05-08
Abstract: 1426297 Thermographic stencil sheet WEBER MARKING SYSTEMS Inc 8 May 1973 [15 May 1972] 21920/73 Heading G2C A stencil sheet comprises an ink-pervious base sheet bearing an ink-impervious coating of a heatflowable composition of thermoplastic filmforming material comprising a cellulose organic ester and plasticizing material partially but incompletely compatible (i.e. when the plasticizing material is heated with the film-forming material in the proportions used a homogeneous single phase melt is formed which when cooled to ambient or room temperature forms a two-phase mixture, at least one phase of the mixture incorporating substantial proportions of both the filmforming material and the plasticizing material) with the film-forming material, the plasticizing material containing 3-60% by volume based on the total volume of the film-forming and plasticizing materials, of a thermoplastic polymeric hydrocarbon resin having a total content of polymerized indenes and coumarones of at least 30 wt per cent. The monomer content of the resin may be completely limited to indenes, coumarones, styrenes and aliphatic unsaturated monomers. the resin having a total content of polymerized indenes and coumarones of at least 40 wt per cent and a total content of polymerized indenes, coumarones and styrenes of at least 80 wt per cent. The resin may have a total content of polymerized coumarones of up to 10 wt per cent The resin may be a coal tar coumarone-indene resin having a total content of polymerized indenes and coumarones of at least 80 wt per cent the balance being polymerized styrenes. The resin softening point may be 5‹-175‹C, preferably 90‹-175‹C. The cellulose ester may be cellulose acetate propionate, cellulose acetate butyrate, cellulose acetate valerate, cellulose propionate butyrate, cellulose propionate valerate, cellulose butyrate valerate, cellulose propionate, cellulose butyrate or cellulose valerate. In Example 3 the composition also contains titanium dioxide, chrome yellow and silica. The stencil sheet has reduced oil transfer.
Patent GB-994398-A (GB)
Title: A process for the production of gaseous monomeric formaldehyde
IPC: C07C45/55
Filed: 1963-05-31
Abstract: Gaseous monomeric formaldehyde is prepared by pyrolysing paraformaldehyde in an inert organic carrier liquid having a boiling point above the decomposition temperature of the paraformaldehyde, in the presence of an organic acid compound having at least 8 carbon atoms, which acid compound is soluble in the inert carrier liquid and is non-volatile under the pyrolysis conditions.  It is preferred that the weight ratio of carrier liquid to paraformaldehyde be 0.5: 1 to 10: 1 and the organic acid compound be employed as 0.001 to 0.1 acid gram equivalents per kg. of paraformaldehyde. Specified carrier liquids are those aliphatic and cycloaliphatic saturated hydrocarbons. With 8 or more carbon atoms, halogenated benzenes, alkylbenzenes, ethers, esters, and polyethers and polyesters of molecular weight 1000-5000 that are liquid under the pyrolysis conditions. Specified acid compounds are stearic acid, palmitic acid, aliphatic dicarboxylic acids, hydroxycarboxylic acids, paraffin-sulphonic acids, alkyl-aryl-sulphonic acids, esters of sulphuric and phosphonic acids and monoesters of aliphatic and cycloaliphatic polycarboxylic acids with fatty alcohols, thiophosphoric acid esters and phosphoric acid thiol esters of fatty alcohols, sulphimides, and sulphates and phosphates of tertiary amines which contain more than 10 carbon atoms.
Patent GB-1127095-A (GB)
Title: Preparation of tri-mesoyl chloride
Inventor: SCIGLIANO JOSEPH J
IPC: C07C51/60
Filed: 1967-05-11
Abstract: 1,127,095. Trimesoyl chloride. AEROJET GENERAL CORP. 11 May, 1967, No. 21952/67. Heading C2C. Trimesoyl chloride is prepared by reacting trimesic acid with thionyl chloride in the presence of 0À1-1À5 weight per cent, based on the weight of trimesic acid, of a catalyst comprising ferric trichloride or a ferric trichloridenitromethane complex.
Patent GB-637020-A (GB)
Title: An improved gas cooled dynamo-electric machine
IPC: H02K9/18
Filed: 1947-08-08
Abstract: 637,020. Cooling dynamo-electric machines. ALLIS-CHALMERS MANUFACTURING CO. Aug. 8, 1947, No. 22044. Convention date, Aug. 3, 1940. [Class 35] In a hydrogen or other gas-cooled machine with one or more coolers disposed between the stator core and casing the coolers are arranged so that access may be had to their interiors without gas escaping from the housing. As shown, hydrogen after traversing the two coolers 36 passes axially between inner and outer casings 9, 7 to two fans at the. ends of the machine and after flowing through radial ducts in the stator and rotor cores flows circumferentially in inner casing 9, through apertures 34 and back to the coolers. The coolers extend from one end of the machine to the other and have covers 52 which can be removed without removing the bearing brackets 17.
Patent GB-169346-A (GB)
Title: Improvements in and relating to shaft packings
IPC: F16J15/447
Filed: 1920-07-23
Abstract: 169,346. British Thomson - Houston Co., Ltd., (General Electric Co.). July 23,. 1920. Flanging. - In labyrinth packing for turbines &c., packing flanges 16 are formed on rings 14 projecting from discs 13, by turning grooves in the ends of the rings 14, and bending the sides of the grooves at approximately right angles to the rings.
Patent GB-476268-A (GB)
Title: Improvements in or relating to brushes
IPC: A46B11/00
Filed: 1936-08-11
Abstract: 476,268. Reservoir brushes. PROUDLOVE, N. Aug. 11, 1936, No. 22063. [Class 19] Lavatory brushes are provided with a soluble disinfectant in direct contact with the bristles outside the stock either in solid form or fed from a reservoir by a wick. Bristles a may be held between wires as in Fig. 1, or be set in a stock, Fig. 8. The disinfectant D, Fig. 1, may be placed and held between the bristles during or after manufacture of the brush. The block D may have wires moulded therein for attachment to the stock or may be clipped thereto. Alternatively, disinfectant mixture may be melted and allowed to set between the wires or bristles. The blocks D may consist of potassium permanganate, carbolic acid, phenol pine extract, or other disinfectant which can be made to set solid. In a modification, Fig. 7, disinfectant D<1> is fed by a wick d<1> to the bristles from a reservoir in the handle.
Patent GB-1487873-A (GB)
Title: Method and apparatus for producing continuous lengths of metal tubing using ultrasonic welding
IPC: B23K20/10
Filed: 1975-05-22
Abstract: 1487873 Welding by pressure; making tubes ANDREW CORP 22 May 1975 [11 Nov 1974] 22069/75 Headings B3R and B3A A method of forming a tube from a metal strip 11 of metal comprises bending the strip into a tubular form with longitudinal edge portions overlapping, moving these edge portions over a non-vibrating anvil 20 where the edge portions are welded together using an ultrasonic welding head 22 which vibrates in a direction transverse to the direction of advancement of the strip 11. The bending of the strip 11 into tubular form is by an entry plate 15 and a die 14 having tapered bores 15a and 14a which combine with a mandrel 16 to bend the moving strip about the axis of the mandrel, the edge portions being made to overlap by a tucking tool 17 on the die 14. The welding head is in the form of a rotary disc 22 and the anvil 20 may or may not be attached to the mandrel 16. The anvil 20 has a series of truncated ridges which provide transversely directed friction without scratching the metal surfaces. The periphery of the disc 22 may move at the same speed as the strip.
Patent GB-1011599-A (GB)
Title: Improvements in or relating to the production of unsaturated aliphatic aldehydes
Inventor: BARCLAY JOHN LYNN
IPC: C07C45/35
Filed: 1963-06-04
Abstract: Acrolim or methacrolim are prepared by a modified process of Specification 864,666 comprising vapour phase oxidation of propylene or isobutene with molecular oxygen over a tin/ antimony oxide catalyst, the tin oxide being prepared from tin and nitric acid, especially a catalyst containing atomic ratios of tin to antimony of 1 : 4, the catalyst having been subjected to heat treatment in the presence of molecular oxygen prior to use, the improvement consisting of conducting the heat treatment at 825 DEG  to 925 DEG  C., preferably at about 875 DEG  C. for preferably 2 to 48 hours. The example which contains comparative data employs as feed stream propylene, air and steam using catalysts which have been given various heat treatments from 800 DEG  to 900 DEG  C.  Reference has been directed by the Comptroller to Specification 904,602.
Patent GB-409731-A (GB)
Title: Improvements in and relating to apparatus for aerating liquids
IPC: B01F3/04
Filed: 1932-08-06
Abstract: In apparatus for aerating liquids, for example, for the manufacture of aerated water and the like and delivering it into bottles or into glasses for immediate consumption, of the kind described in Specification 927/04, [Class 14], and comprising a valve wherein the flow of liquid and gas is controlled by a moveable disc or plate provided with passages which communicate through ports in its faces with the ports of passages in two members between which the plate or disc is located, at least the moveable disc and members between which it is located are of synthetic resin composition such as a urea-aldehyde or like condensation product resistant to the action of the fluids employed and preferably such as can be moulded into shape under the action of heat and pressure.  Condensation products of thiourea and of phenol with aldehydes form are also referred to as suitable synthetic resins.  The whole machine with the exception of packings or the like may be formed of such material, the valve disc being formed in three sections which are cemented together, or made as a single moulding in which some of the passages are formed by boring.
Patent GB-628460-A (GB)
Title: Improved apparatus for the manufacture of cork agglomerates
IPC: B27N3/20
Filed: 1945-08-29
Abstract: 628,460. Moulding cork blocks. CALLEIA, C. R. Aug. 29, 1945, No. 22301. Convention date, Sept. 15, 1944. [Class 87 (ii)] Cork blocks are formed in a mould having perforated side plates 5 and perforated top and bottom plates 91, 4. The top plate is moved by a press 8 to compress the cork and the bottom plate is moved by a press 1 to eject the moulded block. Steam or heated gas is supplied to the cork through the bottom and side plates and evacuated through the top plate. The perforations 6 are arranged in zones, the perforations of each zone having a diameter different from that of the perforations of other zones. The holes in the lowermost zone are of the smallest diameter. Each zone is supplied with the gas or steam at a temperature and pressure different from that at which it is supplied to the other zones. Means are provided for regulating the pressure and temperature of the gas in each zone, the temperatures and pressures being so chosen as to obtain an even temperature throughout the mass of cork. A closure plate 9 acts as a cover for the mould. The distance between the plates 9, 91 is adjustable, and by varying this distance the pressure applied to the cork is adjusted. The press 8 acts as a safety valve, since it lifts automatically, if the pressure in the mould exceeds a certain amount. The press is rotatably mounted on a column 11, and it is rotated away from the mould to allow of the removal of the block and the filling of the mould. The Specification as open to inspection under Sect. 91 comprises also the use of thermostats to automatically control the temperature of the steam or heated gas and the flow of the gas or steam may be reversed being injected through the plate of the compressing press. This subject-matter does not appear in the Specification as accepted.