baber/WOPTO huggingface dataset:
Patent GB-656107-A (GB)
Title: Electric controlling systems for winding motors
IPC: B66B1/12
Filed: 1948-10-08
Abstract: 656,107. Control of motors. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Oct. 8, 1948, Nos. 26253 and 26254. Convention dates, Oct. 10, 1947 ,and Dec. 13, 1947. [Class 38(iii)] In winders for raising and lowering a cage in a shaft provision is made to prevent operation of the winder at speeds exceeding a predetermined value and/or to give rise to an alarm signal. The winder motor 2 drives two tachometer generators 3, 3<SP>1</SP> each having in their output circuits a minimum voltage relay 4, 4<SP>1</SP> fixed resistors 8, 8<SP>1</SP> and resistors 5, 5<SP>1</SP> adjustable by cams 7, 7<SP>1</SP>, driven by a cage depth indicator, so as to initially adjust the cut-out speed during initial acceleration and final deceleration of the cage. One of the tachometer generators is effective during lowering of the cage and the other during raising and both are such that their voltage output decreases with speed. Thus if the predetermined speed is exceeded one of the relays 4, 4<SP>1</SP> opens its contacts to deenergize the winder motor and/or operates an emergency brake or alarm circuit. In a further embodiment, Fig. 3 (not shown), one of the tachometer generators is dispensed with and the output of the remaining one fed through a minimum voltage relay and a maximum voltage relay, one or the other of which exercises control depending upon the direction of motion of the cage.
Patent GB-870942-A (GB)
Title: Converter system for liquefied gases
Inventor: KUGLER SIMON
IPC: F17C7/04
Filed: 1958-08-15
Abstract: 870,942. Liquid oxygen revaporizers. BRITISH OXYGEN CO. Ltd. Aug. 12, 1959 [Aug. 15, 1958], No. 26303/58. Class 8(2). Apparatus for charging a converter with liquefied gas while at its operating pressure and without de-pressurising it, whereby the converter system is operative forthwith, comprising a converter vessel 10, a filling valve 16, a check valve 14 and a build up circuit, which contains an automatic relief valve 18 continuously vented while the system is being recharged and is set at a pressure intermediate between that of operating and charging the system, a pressure closing valve 19 isolating the liquid and gaseous phases and normally closed if the operating pressure is greater than a predetermined minimum. If, due to demand, the pressure in the conduit 17 falls to too low a pressure, the valve 19 opens and liquid oxygen in the evaporator coil 21 supplies gas to the upper part of the build up circuit, until the minimum pressure is exceeded and the valve 19 closes once again. The second relief valve 20 vents any build-up of trapped gas in the lower half of the conduit 17 and stands by in case of failure of the relief valve 18.
Patent GB-1422523-A (GB)
Title: Dynamo-electric machines of the reluctance type
IPC: H02K19/24
Filed: 1971-12-17
Abstract: 1422523 Core constructions; squirrel cage windings NATIONAL RESEARCH DEVELOPMENT CORP 6 Dec 1972 [17 Dec 1971] 26372/75 Divided out of 1422522 Heading H2A The rotor of a reluctance type machine comprises circumferentially spaced channels 15 containing electrically conductive material in which are embedded inserts 14 of magnetic material providing paths for the flux produced by the current flowing in the conductive material. The conductive material is connected to end rings together with other axially extending conductors disposed around the rotor periphery between the channels to form a squirrel cage winding. Figs. 2, 3 (not shown), illustrate magnetic inserts having shapes differing from that shown.
Patent GB-235453-A (GB)
Title: Improvements in or relating to boxes
IPC: B65D5/44
Filed: 1924-11-05
Abstract: 235,453. Gough, F. Nov. 5, 1924. Battens, strengthening.-Cardboard and like lidded boxes are strengthened by wooden br other battens which are arranged upon each of two opposite sides and upon the inner surface of the lid so that each lid batten 4 is supported upon the ends of a pair of side battens 5. Similar battens 7 may be provided upon the bottom of the box. Specifications 18453/99 and 13959/10 are referred to.
Patent GB-171008-A (GB)
Title: Improved means for fixing buttons
IPC: A44B1/20
Filed: 1920-09-16
Abstract: 171,008. Hooydonk, F. A. van, (Repre. sentative of Hoodonk, H. F. G. van). Sept. 16,1920. Button - fasteners. - Relates to devices for fastening buttons comprising a staple having two or more limbs a which are passed through the holes d<1> of the button d and through the material c and forced into holes in a back-plate. According to the invention, the back plate is formed with tongues b<1> slit and bent out of the plate b for gripping the limbs of the staple. The ends of the limbs a may be kinked to ensure a firmer grip; and the plate b is covered by a dished cap c, the edge of which is crimped over the plate b.
Patent GB-500890-A (GB)
Title: Improvements in or relating to the manufacture of luminous electric discharge tubes
IPC: C09K11/02
Filed: 1937-10-04
Abstract: 500,890. Treating glass surfaces. RANGABE, A. R. Oct 4, 1937, No. 26744. Drawings to Specification. [Class 56] [Also in Groups XV and III] A powder which can. be converted into a glaze by heating or evacuation or both, e.g. .boric 'acid, is applied to the interior of an electric discharge 'tube by heating a readily vaporizable binder in a container, and passing a stream of air through the vapour space, which is in communication with the interior of the tube, so that the vapour condenses on the internal surface of the tube to form a thin uniform layer of binder, the powder being subsequently introduced into the tube and distributed to form a layer which is anchored to the binder. The binder may be a solid, e.g. sulphur or "Halowax" (Registered Trade Mark), or a liquid having low surface tension and high viscosity, e.g. glycerol.
Patent GB-1339352-A (GB)
Title: Safety device for an electric motor reversing switch
IPC: H02P7/03
Filed: 1971-04-19
Abstract: 1339352 Control of DC motors HOLZER PATENT AG 19 April 1971 [16 April 1970] 26774/71 Heading H2J An electric switching device is connected in parallel with a permanent magnet reversible motor whose speed is controlled by a semiconductor switching device, the electronic switching device being arranged to conduct on each occasion when the semi-conductor switching device is conductive The motor 1 is fed from an A.C. line 9 and its speed is controlled by a control thyristor 2 and its rotational direction by a reversing switch 4 operated by an automatic cycling control. A flywheel thyristor 6 is actuated by a trigger device 5 which also actuates the control thyristor 2, so that the flywheel thyristor 6 is conductive only when the control thyristor 2 is conducting. In another embodiment (Fig. 4, not shown), the output from the control thyristor 2 operates a trigger device (8) which controls the flywheel thyristor 6.
Patent GB-477183-A (GB)
Title: Improvements in apparatus for disintegrating and screening pulverulent material
IPC: B02C23/00
Filed: 1936-10-02
Abstract: 477,183. Disintegrating and screening pulverulent material. TYLER, G. M. Oct. 2, 1936, No. 26782. [Class 59] In an apparatus for disintegrating pulverulent material of the kind in which one or more sets of horizontally rotating beaters are employed which revolve in planes across the direction of feed of the material and cooperate with a surrounding pyramidal or conical screen 6 through which the finer particles pass into an outer casing or hopper 8 whilst the larger unbroken particles are intercepted by the screen and pass to a separate receptacle, annular fence rings 1 and 2 are mounted above the beaters 3 and 4 to prevent the lumps of material from being thrown outwards by the beaters until they have been subjected to the slicing action of the beaters. The beaters may be curved to a radius either in the direction of rotation or in the reverse direction. A conical distributing-plate 5 is mounted below the beaters.
Patent GB-1005329-A (GB)
Title: Process for the preparation of sustained release pharmaceutical tablets
IPC: A61K9/24
Filed: 1964-06-29
Abstract: Sustained releast tablets comprise an intimate blend of at least one active substance, at least one swelling agent, and at least one water-insoluble, organic-solvent-soluble polymer or film-forming agent.  They are prepared by blending the components in the presence of an organic solvent or solvents, in which the active agent is insoluble but in which the polymer or film-forming agent is soluble, and then drying the mixture, and forming into tablets.  Preferred swelling agents are carboxymethyl cellulose, methyl cellulose, hydroxy ethyl cellulose, polyacrylic acid, sodium alginate, or pectin.  Suitable polymers are polyvinyl acetate, or cellulose acetate phthalate, the latter preferably being used in admixture with stearic acid.  Solvents employed may be acetone, ethyl acetate, tetrahydro-furan, or 90 : 10 w/w chloroform/isopropanol.  The tablets may be coated with an outer layer of conventional composition for immediate release.  Active agents used in the invention are: 1-p-chlorophenyl-2, 3-dimethyl-4-dimethyl-aminobutanol-(2), and 2-phenyl-3-methyl-tetrahydro-oxazine, (phenmetrazine), or their pharamacologically acceptable salts.
Patent GB-687676-A (GB)
Title: Improvements in or relating to rotary fluid pressure engines
Inventor: JOHNSON EDWARD HARRY
IPC: F04C2/36
Filed: 1950-11-03
Abstract: 687,676. Rotary pumps or engines. KEELAVITE CO., Ltd. Oct. 30, 1951 [Nov. 3, 1950], No. 26863/50. Class 110(ii) In a machine having pistons K', moving in an annular working chamber D<SP>2</SP> and engaging recesses L<SP>1</SP> in a rotary abutment L, the dimensions of the inlet and outlet ports where they open into the chamber D<SP>2</SP> are such and/or the inner wall of D<SP>2</SP> and/or larger abutment recess E<SP>1</SP> adjacent to such port, is so cut away that for all rotational positions of the pistons and abutment the total circumferential widths of sealing engagement between the pistons and the inner and outer walls of D<SP>2</SP> and between the abutment and each of the abutment recesses E<SP>1</SP>. E<SP>2</SP> remain unchanged throughout rotation. The pistons K<SP>3</SP> extend axially from a rotor K<SP>1</SP> and move between fixed walls D<SP>1</SP>, F<SP>3</SP>, the latter having a sealing ring F<SP>4</SP> attached to it. Roller and ball bearing L, J support the rotor shaft K, and ball bearings L<SP>3</SP>, L<SP>4</SP> the abutment shaft G, the abutment being outside the bearing L<SP>3</SP>. Gears M, N couple the shafts. Opposite recesses L<SP>1</SP> in the abutment, are connected by ducts O, O<SP>1</SP>. Recesses E<SP>3</SP> are connected to opposite points of the abutment by ducts O<SP>2</SP>, O<SP>3</SP>. The circumferential width of each recess L<SP>1</SP> is equal to the sum of the circumferential width of each . groove E<SP>3</SP>, or space E<SP>4</SP> or E<SP>5</SP> and the circumferential width of each of the sealing surfaces L<SP>4</SP> between adjacent edges of the grooves E<SP>3</SP> and spaces E<SP>4</SP>, E<SP>5</SP>. As the abutment L rotates, the length of circumferential seal between it. and the surface of the smaller abutment recess E<SP>1</SP>, will remain constant. The total circumferential length of sealing area between any two adjacent spaces subject, respectively, to inlet and outlet pressures, remains constant. The edges X, Y of inlet and outlet ports lie in a plane containing the axis of the working chamber. The inner wall of the chamber is cut away at the part P. A seat P<SP>1</SP> is provided around the abutment shaft G. In modified arrangements, the rotor has two or three pistons. The pump or engine may have two abutments co-acting with one piston rotor and, preferably, is contained within an outer casing A ... C filled with fluid.
Patent GB-856862-A (GB)
Title: Improved electrolytic recording medium
Inventor: TUCKER EDWIN WILLIAM
IPC: B41M5/20
Filed: 1959-08-06
Abstract: 856,862. Copying-telegraph receivers. MUIRHEAD & CO. Ltd. Aug. 6, 1959, No. 26883/59. Class 40(3). [Also in Group VIII] An electrolytic recording medium for facsimile or photo-telegraphic receivers comprises a base, e.g. paper, impregnated with an aqueous solution including a polyhydroxyphenolic compound, an electrolyte, an oxidizing compound and an amount, not exceeding 5% by weight of the solution, of water soluble salt of trivalent cerium. The polyhydroxyphenolic compound is preferably catechol and the electrolyte sodium nitrate, with the addition of thiourea, sodium chlorate as the oxidizing agent, as described in Specification 786,496, and with the further addition of sodium sulphate to promote drying of the record medium, as described in Specification 818,937. The cerium salt may be the acetate, chloride, iodide, nitrate, oxalate or sulphate, whilst double salts, such as ammonium cerium nitrate or ammonium cerium sulphate, may be used.
Patent GB-263578-A (GB)
Title: A device for dividing and moulding pieces from a length of margarine, butter, fat or the like
IPC: A01J21/02
Filed: 1925-10-27
Abstract: 263,578. Kadt. R. de. Oct. 27, 1925. Stream-cutting machines.-A device for dividing up a length of margarine, butter, fat, or the like, especially for wrapping- machines coacting with extrusion presses such as described in Specification 169,984, comprises two cutting and shaping slides a, b moving transversely to the longitudinal direction of the length A of rectangular section to be divided and moulded. The facing sides of the cutters are symmetrically shaped so that they mould the portion B being cut off and the end of the portion A. A pivoted support c shaped in accordance with the form of the finished piece B supports it while it is being out off.
Patent GB-228237-A (GB)
Title: Automatic feed device for rotary cutting & scoring & the like machines
IPC: B65H1/18
Filed: 1923-10-27
Abstract: 228,237. Nasmith, J. W. Oct. 27, 1923. Sheet-separators; pile tables and supports; sheet-carriers. -Blanks are fed to rotary scoring and cutting machines, or sheets are fed to other machines, by a mechanism involving friction feed rollers 41<a>, moved to and fro across the top of the pile to buckle the sheets, in conjunction with a rising and falling rail 34 which, when raised, allows the top sheet to move between feed rollers R for advancing the separated sheet to the machine. The sheets are supported on a table T mounted at each side on crossed links 11, 12 and pivoted to sliding blocks 5, 10 moving on guides, the blocks 5 being moved to the left to raise the table on the lazy tongs " principle by means of a rod 14 moved to the left by mechanism, controlled by the height of the pile, including a clutch controlled bv the movement of the connecting rods 41 reciprocating the feed rollers 41<a>. The table T is mounted, on a truck U which can be disconnected from the frame F when a new pile is required. The rods 41 are driven from a disc on a shaft 27, on which is a cam for raising and lowering the rail 34. Each rod 14 is formed with a rack at its end which is put into gear with a pinion 15 by a cam 16 operated by a lever 18 and rod 19. The pinions 15 are driven by worm gearing from a shaft 21 which is driven intermittently by a clutch 35 when permitted by a spring-pressed pawl 36 controlled by a pin 37. The pin 37 is fitted with a transverse pin 4 engaging a slot 46 in a bell-crank lever 44, the movement of which controls the clutching and de-clutching of the shaft 21. Each rod 41 is fitted with a block 56 which is adapted to contact with a catch 54 on a lever 52 when the pile is at the required height, and with a catch 55 on lever 52 when the pile needs raising. The levers 52 control the bell cranks 44 by sliding blocks 50 on rods 43 connected to the bell-cranks, blooks 48, 49 and springs 57 being used in connection with rods 51 connected to the levers 52. The shaft 21 is thus de-clutched when the levers 52 are moved clockwise by the blocks 56, and clutched when moved counterclockwise. In a modification, the clutching is controlled by the movement of the rail 34 which acts on a second bell-crank for operating the bell-crank 44 when the rail 34 has to descend a certain distance to engage the pile.
Patent GB-1125234-A (GB)
Title: Process and apparatus for the concentration of aqueous solutions and suspensions
IPC: B01D1/14
Filed: 1966-06-16
Abstract: 1,125,234. Ammonium salts; phosphoric acid- SINCAT-SOC. INDUSTRIALE CATANESE S.p.A. 16 June; 1966 [18 June; 1965], No. 26936/66; Heading C1A. [Also in Division- B1] An aqueous solution or' suspension is concentrated in a vertical elongated vessel which has a section 5 of upwardly increasing crosssection, by dispersing the solution or suspension through inlet 4 into a stream of hot gas, at a temperature of 70-1100‹ C., introduced through inlet 2 and rising up through the vessel` so that there is established, in the conical section 5, a fluidized bed of droplets of solution or suspension from which Water vaporizes from the' droplets into the rising gas stream which carries the relatively concentrated droplets from the bed into a cyclone separator 8 where the required concentrate collects in the discharge end 9. The solution or concentrate is introduced into the vessel at a constriction 3 where the gases have a velocity between 20 and 100 m/sec. The included angle of the conical section 5 is preferably 6 to 9 degrees. In the case of substances or mixtures of substances of low melting point, a molten product may be obtained at the outlet of the concentrator. The process is suitable for the concentration of phosphoric acid from 30% up to 64% by weight P 2 O 5  by using gases having an inlet temperature of up to 700‹ C. Fluorine-containing impurities in wetprocess phosphoric acid are, to a great extent eliminated in the gases discharged at 10 from separator 8. The purified product acid is suitable for the production of calcium phosphate for fodder. The process may also be used for the concentration of a solution of ammonium sulphate, or a slurry of ammonium nitrate and phosphate, or a slurry comprising NH 4 H 2 PO 4 , NH 4 NO 3  and KNO 3 . The concentration of sulphuric acid and of solutions alkali metal hydroxides are briefly referred to.
Patent GB-919512-A (GB)
Title: Hot top
IPC: B22D7/10
Filed: 1961-07-26
Abstract: 919,512. Ingot moulds. OGLEBAY NORTON CO. July 26, 1961 [Sept. 22, 1960], No. 27049/61. Class 83 (1). A hot top comprises a metal casing 10, 11 lined with a porous, fragile heat-insulating firebrick 21 faced with a preformed protective unit comprising a hard non-fragile self-sustaining refractory layer 25 supporting an integrated exothermic facing layer 26. The exothermic layer may include sources of C, such as coke breeze, coal, tar, graphite, sources of Si such as ferrosilicon, sources of Al such as dross, and other substances such as straw, oats or rice. A slurry of sea-coal or the like may be applied between the insert and the firebrick 21. Reference has been directed by the Comptroller to Specifications 708,599 and 776,290.
Patent GB-314731-A (GB)
Title: Improvements in or relating to hot water bottles
IPC: A61F7/08
Filed: 1928-09-21
Abstract: 314,731. Brewin, E. Sept. 21, 1928. Hot-water bottles.-In a flexible hot-water bottle provided with an internal pocket for an infant's feeding bottle, the opening 3 for the bottle extends completely across the end of the bottle and along an edge to the point 4. The opening is closed by press stud fastenings 8 secured to the united edges of the pocket and the water container.
Patent GB-1175339-A (GB)
Title: Polyurethane Powders.
Inventor: KEBERLE WOLFGANG
IPC: C08J3/16
Filed: 1968-06-07
Abstract: 1,175,339. Polyurethane coatings. FARBENFABRIKEN BAYER A.G. 7 June, 1968 [16 June, 1967], No. 27215/68. Heading B2E. [Also in Division C3] Cardboard may be coated with an aqueous polyurethane dispersion prepared by (a) reacting polypropylene glycol ether, tolylene diisocyanate, neopentyl glycol and a reaction mixture of propane sultone, ethylene diamine and a 10% aqueous KOH solution in 50 ml. of water to form a 40% by weight aqueous polyurethane dispersion, (b) spraying the aqueous polyurethane dispersion from (c) into a spray dryer to form a dry powder, (c) redispersing the dry powder in water and coating the dispersion onto cardboard followed by drying at 130‹C. The coating of heated metal and ceramic surfaces with powdered polyurethane is also disclosed.
Patent GB-473384-A (GB)
Title: Method of regulating radio sets and the like
IPC: H01F21/08
Filed: 1936-02-07
Abstract: 473,384. Valve circuits for wireless reception. KRAMOLIN, L. L. DE. Feb. 7, 1936, No. 27277. Divided out of 455,190. [Class 40 (v)] A radio receiver comprises means automatically to tune it to the frequency of an incoming signal, the control being effected by current or voltage variation, similar control means being also provided for manual tuning, manual or automatic volume control, or manual or automatic selectivity control. In one embodiment, Fig. 4, the incoming signals, the amplitude of which is kept constant by an A.V.C. circuit or limiter, pass through a condenser 15 and resistance 16. Across the latter is connected a rectifier 17 and a magnetizing winding 18 associated with an ironcored inductance 20 of the type described in Specifications 449,240 and 451,097, [Group XXXVI], and forming part of the tuning circuit. Manual tuning is accomplished by varying the resistance 62 in series with a further current-carrying winding 18<1> on the same core as the winding 18. In a further embodiment, Fig. 6, an I.F. amplifier feeds a coil 27 associated with an error detector circuit comprising circuits I, II tuned above and below the true I.F. and feeding rectifiers 28, the output currents from which flow in opposition in a magnetizing coil 29 associated with a tuning circuit 31. In a modification, Fig. 7 (not shown), the error detector feeds correcting potentials to the control electrode of a tuning condenser, the capacity of which is thus varied, such as a condenser with a piezo-electric dielectric or similar to an electrostatic loud-speaker. The auxiliary controls of tuning, volume or selectivity may be carried out as described in Specification 455,190, referred to in the Provisional Specification. Reference has been directed by the Comptroller to Specification 449,240.
Patent GB-1094689-A (GB)
Title: Reinforced building slabs
IPC: E04C2/38
Filed: 1965-06-28
Abstract: 1,094,689. Building and roofing slabs. G. J. VAN ELTEN. June 28, 1965 [June 29, 1964], No. 27289/65. Headings E1B and E1W. A wood wool building slab 2, which may have a cement facing layer, has each of its longitudinal edges reinforced by a galvanized metal channel 4 having an S-shaped portion 5-8 providing a tongue and groove interlock formation for cooperation with adjacent slabs, and internal flanges 14, 14' which, during manufacture, are clinched into engagement with grooves 10, 10'. The clinching may be achieved by hydraulic jaws 19 or by press wheels. A layer of tar paper or plastics foil, Fig. 3 (not shown), may be applied to the upper surface of the slab 2 prior to the clinching, said layer being then gripped by the flange 14. In a modification a roof slab, Fig. 4 (not shown) spanning between inclined beams has the thickness of its central portion reduced to leave thickened edges. In a further modification the thickened edges, Fig. 5, are rebated so that abutting slabs define a groove receiving an insulating strip 21 covering the joint.