baber/WOPTO huggingface dataset:
Patent GB-464194-A (GB)
Title: Improvements in and relating to liquid heaters
IPC: F24H1/20
Filed: 1936-09-14
Abstract: 464,194. Heating liquids. JUNKERS & CO., GES. Sept. 14, 1936, No. 25008. Convention date, Sept. 16, 1935. [Class 64 (i)] In a liquid-heater comprising a tank 10 in which liquid is discharged through a siphon pipe 31 extending above the liquid surface, dripping from the outlet on turning off the heating means is prevented by providing on the tank a double bottom 41, the interior space of which communicates with the space above the liquid level by a pipe 42 situ ated preferably in th tank, so that on heat ing air in the double bottom is rarefied Water entering at 12 passes a pressure-re ducing valve 14 actuated by a diaphragn 21 controlling a gas valve 20 and enters the tank by a pipe 15 and a float - actuated valve 26, and a smal supply enters by a pipe 16 with a choke 25 Water is discharged by steam pressure to the outlet 31, which is apertured at 45 within the tank to prevent emptying the tank by siphoning. The tank has fins 11 and an internal corrugated jacket 27 with an aperture 29 at the bottom. To obtain warm water, a valve 37 byepassing the valve 14 is opened, whereby the rush of water keeps the float 33 depressed. Specification 462,437 is referred to.
Patent GB-647534-A (GB)
Title: Improvements in or relating to control systems for alternating current motors
IPC: B66C13/26
Filed: 1947-09-12
Abstract: 647,534. Automatic speed control systems. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Sept. 12, 1947, No. 25077. Convention date, Oct. 7, 1946. [Class 38 (iv)] [Also in Group XXXVII] A control system for a polyphase motor comprises a three-phase circuit connected to said motor for impressing voltage thereon, two controllable electronic discharge tubes connected with at least two phases of said circuit so as to determine the phase sequence of said voltage depending upon the relative conductance conditions of said respective tubes, each of said tubes having a control circuit for controlling said conductance condition, voltage control means connected to said motor for providing a variable control voltage substantially in accordance with the motor speed, and circuit means coupling said voltage control means with said valve control circuits, so that a variation in control voltages changes said conditions of conductance in inverse relation to each other, whereby said motor is caused to reverse its torque at a given speed. A threephase induction motor M may be supplied with unbalanced polyphase current when a contact 106 is opened to connect discharge valves V1, V2, in one of the supply-lines to the motor. A suitably-phased alternating component of the grid-bias voltage of the valve V1 is derived from a transformer secondary winding 108, a direct component being obtained from rheostat 109. The grid circuit of valve V2 similarly comprises a transformer winding 111 and rheostat 112. The motor may drive a hoist, and lowering control may be effected by using valves V1, V2 only. Under these conditions a control coil 125 of saturable reactor R1 is strongly energized from rectifier 132, as long as the motor is at rest, and the valves V1, V2, are rendered non- conductive, the motor receiving single-phase excitation. When an overhauling load moves the motor downwardly, a tachometer generator G becomes effective to oppose the voltage of rectifier 132, and the motor produces a countertorque which increases with rising speed. Additional valves V3, V4 are conductive when the other valves are non-conductive and are effective to supply the motor with reversed energization. When the motor and tachometer generator G are at rest no voltage is applied to the control winding 225 of saturable reactor R2 so that valves V3, V4 pass a heavy current and the motor can exert a downward torque. As the motor speed increases the firing-periods of the valves V3, V4 decrease until they reach zero. The valves V1, V2 then become conductive and thereafter pass increasing currents. The speed at which reversal of torque takes place may be adjusted by ganged rheostats 100, 200. A reversing switch 141 may be provided. The Specification as open to inspection under Sect. 91 comprises also the subject-matter of Specification 647,535, and refers to simpler arrangements in which torque reversal does not take place at selected speeds. This subjectmatter does not appear in the Specification as accepted.
Patent GB-277994-A (GB)
Title: Improvements in mining machines
IPC: E21C31/00
Filed: 1927-09-23
Abstract: 277,994. Sullivan Machinery Co., (Assignees of Holmes. M. P.). Sept. 24. 1926, [Convention date]. Operating or controlling clutches; reversing-gearing.-In a coal-cutting machine, the forward end of the armature shaft of a reversible electric motor drives the cutter-chain and the jib-slueing mechanism through gearing and clutches controlled by a single cam all as described in Specification 271,055. The rear end of the armature shaft through spur gearing 141, 142, Fig. 9, and variable speed gearing drives reversing bevel gears 305, 306, 307, each of the gears 306, 307, containing a disc clutch 313 controlled by a shipper yoke 320 and operated by a sliding rod 321, whereby a longitudinal shaft 310 is driven in either direction. The longitudinal shaft 310 drives an .aligned screw 328, Fig. 4, connectible through a clutch with a further screw 337; the screws 328, 337 engage slidable nuts 343, 344 provided with racks 345 engaging toothed segments 346 fixed to the frame-supporting arms 22, 23. By driving both screws, the nuts rock the arms 22, 23 to raise or lower the machine while on disconnecting the clutch and driving the screw 328 only, the arm 23 is rocked alone and the machine is tilted. Overrunning is prevented by providing the nuts 343, 344 with projections 361, Fig. 13, which co-operate with members 358, 359, to move a rod 357 normally held in central position by springs 366, 366<a>, and carrying the fulcrum of the clutch shipper of t.he reversing gearing 305, 306, 307.
Patent GB-179485-A (GB)
Title: An anti-overflow fitting specially adapted for use with kerosene burning apparatus
IPC: F23D11/44
Filed: 1921-01-04
Abstract: 179,485. Haddan, R., (Champion Kerosene Burner Co.). Jan. 4, 1921. Vaporizing-apparatus. - In kerosene-burning apparatus of the type described in Specifications 153,647 and 176,929, flooding of the back-pressure chamber C is prevented by means of a tubular member 4<a> fitted between the mixing-tube 4 and the pipe 4<x> leading to the furnace 5. The fitting 4<a> has an opening 4<0> in its upper side communicating through a passage 4<c> with a hollow stem portion 4<d> connected to the chamber C, and the amount of gas passing from the mixing-tube through this opening is regulated by means of a valve 4<v>, slidably mounted in a chamber 4<w> formed at the upper side of the part 4<a>.
Patent GB-1207912-A (GB)
Title: Electric motor speed control
IPC: H02P7/288
Filed: 1968-05-27
Abstract: 1,207,912. Automatic speed control. BENDIX CORP. May 27, 1968 [May 29, 1967], No.25182/68. Heading G3R. [Also in Division H2] A speed control system for a permanent magnet D.C. motor includes means for sensing voltages at two reference points in the motor circuit to provide feedback which controls current regulating means in the motor circuit and turns it off when one of the reference points is earthed. The current in the motor 20 and a series resistor 18 is regulated by a transistor Q2 which has its base connected between a resistor 14 and a feedback transistor Q1 in series with a resistor 1 across the source 10. When the supply is switched on, a charging pulse to a capacitor 12 renders the transistor Q1 conducting and the voltage across the resistor 14 renders transistor Q2 conducting. The threshold voltage of a diode 22 is such that it does not influence the emitter voltage of the transistor Q1 until the back e.m.f. in the motor builds up with increased speed. The speed of the motor depends on the values of resistors 24, 26 and any variation in speed or applied voltage will change the voltages of reference points B and C to produce linear feedback to the base and emitter of the transistor Q1 which changes its conductivity to influence the base voltage of transistor Q2 so that its conductivity changes to restore the motor speed to the set value. If the motor is shortcircuited, the earth voltage at C and low voltages at B causes the transistor Q1 to become non- conductive so that Q2 also becomes non-conductive and the capacitor 12 charges to prevent restorting of the motor. Reference has been directed by the Comptroller to Specification 1,144, 937.
Patent GB-1356500-A (GB)
Title: Trousers having an adjustable waist
IPC: A41F9/02
Filed: 1972-05-30
Abstract: 1356500 Trousers T TOYODA 30 May 1972 [15 March 1972] 25194/72 Heading A3V Trousers having a waist 3 are provided with an adjustment in the form of a pleat 4 provided at the front of the trousers on each side, one fold 8 of the pleat being arranged so that its extension 8' is aligned with a front crease on one trouser leg. To hold the pleat 4 at the desired adjusted position there is provided a buckle 13 secured by a piece of cloth 14 to the waist of the trousers, the buckle having a locking piece through which is passed a band 21, sewn to the waist 3 in the region of the pleat 4 and passing into an envelope 7. The band 21 may be provided with transverse ribs (not shown) to aid in locking the buckle in its desired position. In a modified arrangement an elastic strip is sewn on the side of the trousers between the pleat 4 and the waist 3 to continually tension the waist in the direction in which it would be shortened.
Patent GB-510994-A (GB)
Title: Pneumatically operated fluid controlled tool feeding mechanism for lathes and like machine tools
IPC: B23Q5/26
Filed: 1938-08-29
Abstract: 510,994. Dashpots. HEPBURN, J. T. Aug. 29; 1938, No. 25280. Convention date, June 29. [Class 108 (iii)] [Also in Group XXII] A tool-feeding device comprises a pneumatic operating cylinder 11 and a fluid-pressure control cylinder 16 wherein the volume of the controlling cylinder available for receiving the fluid is substantially equal on both sides of the piston. The rod 13 having a connection 43 for attach- 'ment to a tool-holder, passes completely through the air cylinder 11 and control cylinder 16. During movement of the rod in the feeding direction indicated by the arrow X, fluid passes from the L.H. to the R.H.. side of the piston through the pipe 41 and control valve 42 and also along the channels 38 extending over part of the length of the control cylinder, this giving a quick approach movement prior to the actual feed movement over the remainder of the stroke. During return movement of the rod when the air pressure to the cylinder 11 is reversed the control piston moves back more quickly since disc valves 35 allow fluid to pass directly through the piston; finally the grooves 38 allow a still more rapid return. Specification 399,929 is referred to.
Patent GB-782984-A (GB)
Title: Process for refining metals and apparatus for performing the same
IPC: C22B5/00
Filed: 1954-08-31
Abstract: Calcium aluminate is prepared from bauxite ore by charging the ore into a ladle or crucible together with alternate layers of carbon and lime, the charge being covered with charcoal or other form of lumpy carbon.  Reaction between the components of the charge is started by pouring in molten slag or molten metal or by blowing in hot air which heats the charge by combustion of the carbon.  The slag-producing reaction once started is exothermic and self-supporting, oxides of iron, silicon and manganese being reduced to form a molten metal bath on which molten calcium aluminate slag is formed.  The reduction is aided by forcing the hot carbon down into the molten bath by means of a plunger. Completion of the reduction may be ensured by blowing hot carbon monoxide or hydrogen into the melt.  The molten refined calcium aluminate slag is tapped and may be treated to produce substantially pure alumina by dissolving in sodium carbonate solution, separating the precipitated calcium carbonate and precipitating alumina from the remaining solution by addition of carbon dioxide.  U.S.A.  Specification 2,243,110 is referred to.
Patent GB-1049326-A (GB)
Title: Cyclic butenones and derivatives thereof
Filed: 1963-06-26
Abstract: Novel compounds of the general formula <FORM:1049326/C2/1> wherein R1 and R2 are each an alkyl group or, together with the C atom to which they are both bonded, represent a saturated carbocyclic ring, R4 is H or an alkyl group and R3 is H or an alkyl group, or the enol form thereof when R4 is H, are prepared by reacting a compound of formula R1(R2)C = C = O with a compound of formula R3-C = C-OR4 in which formula R1, R2 and R3 are as defined in any of claims 1 to 5 and R4 is an alkyl group, or compounds of the first formula above wherein R4 is hydrogen, or the keto form thereof, may be prepared by hydrolysing the corresponding compound wherein R4 is an alkyl group.  Compounds of general formula <FORM:1049326/C2/2> wherein R1, R2 and R3 are as defined above and R4 is alkyl are prepared by catalytic hydrogenation of the corresponding compound of the first general formula above. Diesters of dicarboxylic acids with the alcohols of the last general formula above are prepared, e.g. bis-(2,2-dimethyl-3-ethoxycyclobutyl) adipate.ALSO:15 parts of 2-butyl-3-ethoxy-2-ethyl-3-cyclobuten-1-one is milled on heated rolls with 85 parts of cellulose acetate butyrate resin to give a tough plasticized resin with improved moulding properties.
Patent GB-926977-A (GB)
Title: Hair-dyeing compositions
Filed: 1961-07-13
Abstract: Hair dyeing compositions which are applied by forcing out of a container by means of a known aerosol propellant comprise a viscous acid or alkaline aqueous solution of at least one known oxidation dye, at least one lower alcohol miscible with water in an amount up to about 20% by weight of the above constituents and a known propellant which is liquifiable under slight pressure. The dyes are preferably amino-phenols, aromatic diamines or nitro derivatives of either of the above.  The specified alcohols are ethanol, iso-propanol, n-propanol, tert-butanol, n-butanol and iso-butanol. The compositions may also include hair treating agents such as cholesterol and lanolin.  The compositions may be applied after a hydrogen peroxide rinse in the form of a viscous liquid or foam.  The composition of the example contains: ethanol, agar-agar, cholesterol, ammonia, sodium sulphite, nitro-p-phenylene diamine sulphate, sodium p-aminobenzoate, water and "Freon 12" ("Freon" is a Trade Mark).
Patent GB-1478653-A (GB)
Title: Liquid impellers
IPC: H02K9/26
Filed: 1974-06-07
Abstract: 1478653 Centrifugal separation HAYWARD TYLER & CO Ltd 5 June 1975 [7 June 1974] 25491/74 Heading B2P [Also in Division F1] A centrifugal pump impeller comprises a radially symmetrical casing formed by separable members 4, 11 which together bound an internal recess 8 having a central inlet port 2 and extending radially between a hub portion 4b and a rim portion 4a of the casing, and centrifugal discharge elements each comprising at least one rib 9a formed integrally with one of the separable members and including a channel 10a extending from an individual inlet opening 10d adjacent the hub portion to an outlet opening 3a. Solid particles entrained in the pumped liquid are separated centrifugally from the liquid and collect upon the peripheral outer wall 4f of the impeller. The discharge channels may be radial instead of being tangential to the tube portion 4b, or may be curved instead of being straight.
Patent GB-264221-A (GB)
Title: Improvements in or relating to method of and apparatus for wrapping lengths of flexible material with a wrapping material in sheet form
IPC: B65H81/08
Filed: 1925-10-13
Abstract: 264,221. Sloper, T. Oct. 13, 1925. Rolling-Machines. - In the manufacture of bead cores for pneumatic types, cores for V-belts, &c. wherein sheet material is wrapped about material of rod or tubular form, the wrapped core may be led to shaping rollers G<1> G<2> whose peripheries co-operate to form the desired shape. Specification 260,084 is referred to.
Patent GB-482932-A (GB)
Title: Improvements in elastic threads
IPC: D02G3/32
Filed: 1937-09-21
Abstract: 482,932. Elastic threads. KENDRIGK CO. Inc., J. R. Sept. 21, 1937, No. 25629. Convention date, Feb. 23. [Class 120 (iii)] An elastic thread comprises an elastic rubber core and an elastic rubber ribbon extending longitudinally of the core and folded to surround and contact with the core by covering threads. As shown, the ribbon 7 is folded about the core 6 by covering threads 8 wound spirally thereon and the covering 8 is covered by threads 9 wound spirally in the reverse direction. Two ribbons may be used to envelop the core. The core and rubber are maintained stretched to a length greater than their normal lengths and the extent to which the covering threads maintain the core stretched is greater than the extent to which they maintain the ribbon stretched. The ribbon or the core may be formed of rubber which offers greater resistance to stretching than that offered by the other element. The rubber used may have sufficient resistance to being stretched as to be required to be held by the covering threads stretched only to a limited extent.
Patent GB-173819-A (GB)
Title: Improvements in automatic organs and similar musical instruments
Filed: 1920-09-06
Abstract: 173,819. Bockisch, K. Sept. 6, 1920. Wind instruments; actions. - In automatic organs &c., pneumatic devices only are so arranged that individual notes can be sounded on either the pedal or manual register or division or on both. Each note has three pneumatic relays N, P. M in connection with three holes in the tracker-bar T, namely, an individual note-hole and general pedal, and manual control-holes a, b, the note and pedal-control holes operating the manual and pedal relays M, P respectively, whilst the manual control-hole b cuts out the manual relay the control valves f, e of the manual and pedal relays are each provided with a second diaphragm m<2>, p<1> between the suction chamber g and smaller chamber k, i which are individually connected with the chambers m<1>, l controlled by the valves and the undersides of the main diaphragms m, p, so that a valve once operated will be held in that position during the operation of its note valve d.
Patent GB-207918-A (GB)
Title: Electric circuit-breaker
IPC: H01H71/10
Filed: 1922-09-22
Abstract: 207,918. Lodge-Cottrell, Ltd., (Metallbank und Metallurgische Ges.). Sept. 22, 1922. Automatic c i r c u i tbreakers. - Relates to circuit-breakers in which a drop-rod 7 that normally bridges poles 1, 2, is tripped by an overload magnet 5. According to the invention there is provided in addition a member 28 which is pivoted at 26 and rests on the upper end of the rod 7 and is adapted, when the rod 7 begins to fall, to swing round rapidly in a clockwise direction and draw out an are between its upper end and a contact 29. The main circuit is then from contact 29 over a spark gap to the member 28 and then over another spark gap to the rod 7. The rod 7 is now falling fast and affects the final break.
Patent GB-841991-A (GB)
Title: Improvements in or relating to devices for securing carpeting to supports
IPC: A47G27/04
Filed: 1955-09-08
Abstract: 841,991. Securing carpets to floors. ALLEN, L. W. Sept. 10, 1956 [Sept. 8, 1955], No. 25696/55. Class 142(4). [Also in Group XIV] A carpet fastener comprises metal nails 11 driven through a wooden strip 10 and bent to engage in the carpet backing. The strip is secured to a supporting surface by nails or screws passing through aperture 15.
Patent GB-1402371-A (GB)
Title: Triazolylnaphthalimides
IPC: C08L23/00
Filed: 1973-05-30
Abstract: 1402371 Optical brightening agents for polymers BAYER AG 30 May 1973 [31 May 1972] 25708/73 Headings C3P and C3R [Also in Division C2] Suspensions or granules of PVC, polypropylene, polymethacrylate or polystyrene are treated to incorporate an optical brightening agent of general formula i n which R 1  and R 2  are each C 1-12  aliphatic radicals, cycloaliphatic, araliphatic or monocyclic aryl radicals and are optionally substituted and Hal is a halogen atom. A plasticizer such as dioctyl phthalate, a commercially available Sn containing stabilizer, Ba/Cd stearate and TiO 2  may also be present. Dimethyl terephthalate and ethylene glycol are polymerized in the presence of Zn acetate and a brightener of Formula I.
Patent GB-1129510-A (GB)
Title: Improvements in or relating to feed systems of gasoline heaters with electric ignition
IPC: B60H1/22
Filed: 1967-06-05
Abstract: 1,129,510. Heater for vehicles. SOC. ANON. ANDRE CITROEN. 5 June, 1967 [20 June, 1966], No. 25818/67. Heading F4T. In a heater for vehicles fuel is fed from the vehicle fuel tank 1 to the burner of the heater 5 by a pump 6, having a cylinder 7 in which a piston 8 is constantly urged by a return spring 9, via a non-return valve 13, the pump being operated manually by means of a knob 16 and piston rod 15 which has a notch 22 to engage a switch 19 in the burner ignition circuit so that as fuel is pumped the heater is started but as the return spring operates the igniter is switched off when the fuel has been discharged by the pump. The stroke of the pump may be adjusted to alter the time of operation of the heater.
Patent GB-843651-A (GB)
Title: Improvements in or relating to printed circuits
Inventor: SKELLERN HAROLD
IPC: B44B3/00
Filed: 1957-08-16
Abstract: 843,651. Planing. STANDARD TELEPHONES & CABLES Ltd. Aug. 15, 1958 [Aug. 16, 1957], No. 25929/57. Addition to 800,064. Class 83 (3). [Also in Group XXXVI] In a printed circuit as described in the parent Specification, which is made by removing predetermined parts of a conductive sheet mounted on an insulating base, a set of planing or shaping tools is employed. Parts of a copper-clad insulating-board 7 are removed by tools carried by arms 4-6, pivoted at 14. Each arm is held clear by springs 8-10, but may be brought into operation when required by an electromagnet acting on plungers 11, 12 or 13. Part of the circuit may be formed in the position shown, after which the board 7 may be rotated through 90 degrees and the operation completed, using a further set of planing or milling tools. The raising or lowering of each tool may be automatically controlled from a pre-arranged programme. The planing tools used may have either a positive or a negative top-rake.
Patent GB-1185605-A (GB)
Title: Method for Waving and Styling Hair
Inventor: FORBRIGER ARTHUR WILLIAM
IPC: A45D7/04
Filed: 1968-05-31
Abstract: 1,185,605. Waving and styling hair. REALISTIC CO. 31 May, 1968, No. 26112/68. Heading D1P. Hair is permanently set and styled by wrapping it on a rod having a perimeter no greater than 1.2 inches to deform the hair, applying thereto a reducing agent for the keratin, e.g. an aqueous solution containing thioglycollic acid and ammonium hydroxide, preferably rinsing it to remove excess reducing agent, removing it from the rod, rewrapping it on a roller of larger perimeter or otherwise forming it into the shape desired in styling or setting of the hair as in pin curls, and applying thereto prior to or after this shaping an aqueous solution of an oxidizing agent for reduced keratin, e.g. an aqueous solution of hydrogen peroxide and phosphoric acid. The rods on which treatment with the reducing agent is effected having a perimeter no greater than 1.2 inches are preferably of circular cross section and the rollers on which styling is accomplished may have a minimum circumference of 2.2 inches. The solution of the oxidising agent may also contain a water soluble, non toxic film-forming resin e.g. polyvinylpyrrolidone and as wetting agent an ethylene oxide condensate of isooctyl phenol.