baber/WOPTO huggingface dataset:
Patent GB-1389573-A (GB)
Title: Utensil for use with electric induction cooking apparatus
IPC: A47J27/00
Filed: 1972-06-07
Abstract: 1389573 Frying pans GENERAL ELECTRIC CO 7 June 1972 [18 Oct 1971] 26534/72 Heading A4A [ Also in Division H5] An electric cooking apparatus comprises an induction heating coil 12 mounted beneath a support plate 14 on which is mounted a utensil 16 made of a material which consists of a core of good thermal conductivity metal e.g. copper, aluminium or silver covered by a skin of magnetic material of high electrical resistivity e.g. iron, magnetic stainless steel or porcelain enamelled steel. It is alleged that heating occurs primarily in the magnetic skin immediately above the heating coil 12 and is transferred to the remainder of the utensil by thermal conduction in the core. The coil 12 is supplied from a conventional A.C. source by way of a solid state conversion circuit 18 which provides an ultrasonic frequency output. The support plate 14 is a glass ceramic. The coil 12 is a pancake coil formed of solid flat strip conductor or braided ribbon conductors of rectangular cross-section.
Patent GB-1466388-A (GB)
Title: Dipeptide containing bitter edible materials particularly low-grade coffees
IPC: A23L27/30
Filed: 1974-06-14
Abstract: 1466388 Coffee preparations, &c GENERAL FOODS CORP 14 June 1974 26564/74 Heading A2B A dipeptide, e.g. L-aspartyl-L-phenylalanine methyl ester, is added to a coffee product including low-grade coffee e.g. Robusta or Paranas or other bitter edible material, in an amount sufficient to repress the bitter flavours, but less than the amount required to produce a sweet taste. The dipeptide may be added to roasted and ground coffee during quenching, it may be added dry to the roasted beans, sprayed in solution on to coffee grounds, added to a coffee extract and co-dried therewith, or sprayed on to the dried extract as an aqueous solution or emulsified with coffee oil, e.g. during plating. The preferred concentration is 0.0025 to 0.016% dipeptide based on the coffee brew.
Patent GB-947343-A (GB)
Title: Improvements in means for securing handrailing and the like to supporting posts
Inventor: ROBINSON GERALD
IPC: E04F11/18
Filed: 1961-07-21
Abstract: 947,343. Handrails; railings. BROADS MANUFACTURING CO. Ltd. July 20, 1962 [July 21, 1961], No. 26626/61. Headings E1B and E1V. Tubular handrailing I releasably secured by means of spigots 4 between short pieces of tube 3 welded to posts 2, is assembled by sliding each spigot into a tube 3 using a tommy-bar inserted into holes 8 in the spigot. A slot 9 in each tube 3 allows the insertion of the bar and a grub screw 6 holds the spigot in position when the railing is assembled. A groove 10 in the spigot receives this screw when the spigot is slid into the tube 3.
Patent GB-158097-A (GB)
Title: Spring suspensions for vehicles
IPC: B60G11/36
Filed: 1919-10-29
Abstract: 158,097. Shears, S. S., and Lenzel, I. D. Oct. 29, 1919. Springs, arrangement of. - A spring suspension for motor vehicles &c. comprises a lever 3 connected rigidly to the axle 2 and by a universal joint to the chassis 1, the movements of the lever being controlled by horizontal coiled springs 15 arranged in conjunction with the universal joint. The lever 3 may be laminated as shown. The 'ball member 7 of the joint is mounted on a pivot 8 on the chassis, and the socket member 6, 9 is clamped to a bracket 5 on the lever 3. A bracket 4 on the chassis and the bracket 5 are each formed with a downwardly projecting portion 13 against which bear duplicate sets of shock and recoil springs 15. Each set comprises three coiled springs, the end springs resisting upward movement of the axle and the central spring downward movement.
Patent GB-435646-A (GB)
Title: Vacuum tube amplifiers
IPC: H01J21/02
Filed: 1934-09-17
Abstract: 435,646. Thermionic valves; valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd., Connaught House, Aldwych, London.-(Assignees of Black, H. S. ; 820, Oak Avenue, Westfield, New Jersey, U.S.A.) Sept. 17, 1934, No. 26654. Convention date, Sept. 26, 1933. [Classes 39 (i) and 40 (v)] A valve has a cathode f, Fig. 2, an anode a, and, interposed between them, a grid c, two grids g, r mainly in the same surface, and grids s, p. When used as an amplifier, the grid c is connected as a space charge grid, grid g as a control grid, grid r as a space charge grid, grid s as a screen grid, and grid p as a suppressor grid. Such a valve C<3> is shown in Fig. 3, as the third valve of an amplifying circuit for a non-loaded multiplex-carrier telephone cable circuit, the first two valves A<2>, B<2> of which are screen grid tetrodes or pentodes. The input of the valve A<2> is connected across the arm 9 of a Wheatstone bridge 6 ..9 and the output transformer 12 is connected across a diagonal of a Wheatstone bridge the arms of which consist of the valve C<3> and resistances KRO, KR, R. A feed-back circuit for reducing the gain in the valve A<2> is connected across the other diagonal, and the amount of the feed-back is adjusted by a variable resistance 55 ; the feed-back is connected across a diagonal of the bridge 6.. 9. With this arrangement the feed-back is independent of the impedances of the incoming and load circuits. The Specification as open to inspection under Sect. 91 comprises also the following circuits (a) the first two valves are screen grid tetrodes and the third valve is similar to that shown in Fig. 3, but with the inner space charge grid and the suppressor grid omitted ; (b) all the valves are as in arrangement (a) with the addition of a suppressor grid in each valve, and (c) an arrangement similar to that in arrangement (a) but with an inner space charge grid in the third valve. This subject-matter does not appear in the Specification as accepted.
Patent GB-301161-A (GB)
Title: Improvements in or relating to the manufacture of metallic gridwork, or the like
IPC: E04C2/42
Filed: 1927-10-08
Abstract: 301,161. Williams, G. B., and Porter, W. J. H. Oct. 8, 1927. Gratings. - Metallic gridwork for flooring and other purposes consists of main bars A with slots E and lateral slits near one edge, and transverse bars B which are formed with notches C, D on both edges. The slots E extend only sufficiently to receive the waists B<1>. The strip G is expanded to allow the bar B to be inserted, the notch D is engaged over the lower edge of the notch E to form a bottom interlock, and the strip G is pressed back into its original position and interlocked with the notch C. The bars B may be polygonal in section, and the upper edges may be above or below the upper edges of the bars A. The bars A may be of bulb-section and the lower edge may be of serpentine formation.
Patent GB-757173-A (GB)
Title: Process and apparatus for the continuous separation of amalgams of metals into metal and mercury
IPC: C22C3/00
Filed: 1954-09-15
Abstract: 757,173. Separating metals from amalgams. KOHLER, F. Sept. 15, 1954 [Sept. 23, 1953; Sept. 8, 1954], No. 26752/54. Class 82(1). In a process for continuously separating amalgams of base metals into the metal and mercury, the amalgam is conveyed through a heating zone and, while being conveyed, is heated to a temperature at which the mercury is distilled, if necessary in the presence of a protective gas or in a vacuum. The Figure shows a closed casing 1 containing vibrating conveying channels 3 and 4, a feed screw 12 for introducing the amalgam, rotary valve outlet 14 for metal freed from mercury, inert gas inlet 15 and outlet 16, electric heating elements 5, and 6a and a cooling jacket 2 for condensing the evaporated mercury which flows down the sloping floor of the casing to outlet 19. The two conveying channels are elastically mounted on leaf springs 7, 7<SP>1</SP>, 711 and 10, 10<SP>1</SP>, 10<SP>11</SP> and are vibrated by separate alternating current electromagnets 8 and 8a. The amplitude of vibration is controlled by the inclination of the leaf springs which, in the case of channel 3, are more inclined to the vertical to give a larger amplitude and a stronger conveying impulse. Metal nearing the exit end of channel 4 is allowed to cool before being withdrawn through valve 14. In a further modification the amalgam is carried on an endless belt, e.g. of heat-resisting steel mesh fabric, through a muffle furnace.
Patent GB-475603-A (GB)
Title: Improvements in or relating to internal combustion engine-electric power units
IPC: H02P9/00
Filed: 1936-10-02
Abstract: 475,603. Fluid - pressure servomotor - control systems. SULZER FRERES SOC. ANON. Oct. 2, 1936, No. 26808. Convention date, Feb. 12. [Class 135] An internal-combustion engine electric power unit of the kind having apparatus for setting the speed at which the engine is to operate and means which tend to maintain the engine torque constant for any given speed has the speed controlled device controlling the quantity of fuel injected also adapted to control the timing of the commencement of the fuel injection. In the arrangement shown in Fig. 1, a centrifugal governor 9 driven by bevel gearing 8 from an engine driven shaft 7 operates a threearmed lever 11 coupled by a link 12 with the rack 13 for adjusting the fuel pump plungers and coupled by a link 15 with a lever 16 operating a piston valve 18 controlling the operation of a servomotor 19 connected to the movable arm of a rheostat 22 in the field circuit of an electric generator coupled to the engine. The governor is adjustably loaded by a spring 25 bearing against a movable abutment 26 operated by a screw 31 working through a nut rotatable by a hand wheel acting through bevel gear. The upper part of the screwed spindle 31 is squared to prevent its rotation and is pinned to a lever 34 carrying the fulcrum 17 for the lever 16 so that the governor loading and the effective length of the link 15 and thus the basic fuel setting are -simultaneously varied. The fuel pumps comprise plungers 39 reciprocated against the action of springs 40 by cams 36 on the shaft 7 to co - operate with inlet ports 41 and force oil through discharge valves 42. The top of the plungers have inclined edges 43 which when they pass over the ports 41 determine the commencement of the discharge and edges 44 which as they open up the ports 41 to the byepass 45 determine the end of the discharge. To vary the commencement and duration of the discharge, the plungers are rotated by a rack 13 engaging pinions 47 which have slotted bosses co-operating with lugs 48 on the pump plungers. In a modification, a servomotor with a floating lever follow-up gear is employed for operating the rack 13 and the fulcrum of the lever 16 is adjusted by a sliding cam coupled by a link and bell-crank lever to the rod 31. The setting of the governor loading spring may be effected hydraulically, pneumatically, electrically or magnetically. The commencement of fuel injection and the quantity of fuel injected may be controlled by two control devices such as a suction valve and a byepass valve. These two variables may be controlled by a single byepass valve operated by a cam adapted to be adjusted axially. One or both of the inclined control edges of the fuel pump may be on a sleeve surrounding the plunger.
Patent GB-444488-A (GB)
Title: Improvements in liquid cooling systems for internal combustion engines
IPC: F01P3/02
Filed: 1934-09-18
Abstract: 444,488. Cooling cylinders. RUBBRA, A. A., Red Roofs, Carlton Avenue, and LOVESEY, A. C., 198, Burton Road, both in Derby. Sept. 18, 1934, No. 26820. [Class 7 (ii)] Cooling liquid is supplied independently to cylinder barrel and head jackets, by a pipe manifold g having gauged orifices h leading to the barrel jacket and branches h<1> leading to the head jacket adjacent exhaust passages c<1>. The cooling liquid is supplied by a pump through two pipes f<1> at opposite ends of the cylinder block ; in a V-engine, the pump is located under the crank-case and supplies 4 pipes arranged at the four corners of the engine. Each pipe j<1> has also a restricted connection g<3> to the barrel jacket. The liquid is discharged by pipes j<2>, j.
Patent GB-738648-A (GB)
Title: Improvements in or relating to automatic sewing machines
IPC: D05B51/00
Filed: 1951-11-16
Abstract: 738,648. Sewing-machines. CLARKE, J., and CLARKE, V. Nov. 6, 1952 [Nov. 16, 1951], No. 26858/51. Class 112. A stop-motion device in a sewing-machine comprises first guide means adapted to be engaged in one position by the thread and to be moved to another position should the thread break, a rope drive including side-by-side fast and loose pulleys, second guide means adapted to move the driving rope on to the loose pulley, means adapted to interconnect said guide means so that, should the rope break, movement of the first guide effects operation of the second and stops the drive, the device being adapted to be mounted completely on the work table of the machine and to operate independently of the mechanism of the machine. The first guide is constituted by the looped end 2 of a finger 1 which moves when the thread breaks to produce longitudinal movement of a shaft 22 having a looped end 29 constituting the second guide means for moving the driving rope 34 from a fast pulley 32 to a loose pulley 33. Finger 1 is carried at one end of a rod 3 journaled in a bracket 4 mounted on the work table 5. An arm 8 on the other end of rod 3 is connected by a linkage 9, 15 to a bar 12 pivoted at 13 to a bracket 11 mounted on the underside of the work table. The free end of bar 12 is biased downwardly by the weighted upper end of a trip member 16 pivotally mounted on a rod 17 slidable in bracket 11, said bias being partly counteracted by a weight 6 fixed eccentrically on rod 3 to minimize the thread friction on loop 2. Rod 17 is fixed at 21 to shaft 22 which is slidable in bracket 11 and is biased by a spring 23 to abut a second trip member 24 pivoted at 25 to bracket 11. On the thread breaking, the weighted end of trip member 16 moves bar 12 downwardly to raise finger 1 and to move the opposite end of said member into the path of a pin 20 carried by a continuously rotating pulley 18. Trip member 16 is thereby swung into contact with a finger 26 carried by trip member 24 and the latter is thus pivoted to permit displacement of shaft 22 through a slot in member 24 and into a hole in the end lug of bracket 11. The movement of shaft 22 is limited by a block 39 on the latter engaging an abutment 40 on bracket 11, said movement also displacing member 16 beyond the orbit of pin 20. A screwthreaded pin 38 on block 39 is connected to a handle (not shown) for restoring shaft 22 to the driving position. Finger 26 may also be tripped, to stop the drive, by a finger 41 which is pivoted in a lug 42 and carries a handle 43.
Patent GB-736322-A (GB)
Title: Electrical sound-producing horns
Inventor: JENKINSON ROBERT ARTHUR
IPC: G10K9/15
Filed: 1952-10-27
Abstract: 736,322. Electric horns. LUCAS (INDUSTRIES), Ltd., J. Oct. 23, 1953 [Oct. 27, 1952], No. 26886/52. Class 13. In an electromagnetically operated diaphragm horn designed to be operated by a source having a specified nominal voltage, part of the magnetic circuit of the electromagnet of the horn is designed to become saturated if the voltage of the source exceeds the nominal value by a predetermined amount of the order of 10 per cent of the nominal value. As shown, the core of the electromagnet has a circumferential groove g of such depth that the neck h thus formed becomes saturated when the voltage of the source exceeds the nominal voltage by the predetermined amount. This maintains the flux at a value which ensures that the horn produces a pure note at high voltages, which would otherwise result in the production of a harsh note.
Patent GB-1501918-A (GB)
Title: Self-regulating electrical resistance heater devices
IPC: F01M5/00
Filed: 1975-06-25
Abstract: 1501918 Electrical resistance heating TEXAS INSTRUMENTS Inc 25 June 1975 [1 July 1974] 26945/75 Heading H5H Electric resistance heater comprises an anomaly point P.T.C. resistor 9, e.g. of barium titanate, within a housing 5 having two opposite inner surfaces, one surface being in contact with a plate 17, e.g. of copper, that acts as an electrical contact and as a heat sink, the other trough-shaped being in contact with acute-angled marginal portions 37a, 37b, a spring 21, e.g. of beryllium-copper alloy, that provides a second electrical contact and biases the plate 17 into thermal contact with housing 5, both plate 17 and spring 21 having electrical terminals 25, 27. The resistor has conductive material, e.g. aluminium-copper alloy on opposite parallel faces and is soldered to plate 17 which is a close fit in the housing 5 and is thereby centred. Housing 5 is a phenolic resin casting, closed at one end, the other extending beyond plate 17 and having a shoulder (33, Fig. 3, not shown) against which abuts a barrier plate 49 with apertures for terminals 25, 27. Two layers of sealant, inner 55 of room temperature vulcanizing rubber, outer 57 of epoxy resin. The outer seal seals and rigidly joins the leads 39, 41 to the housing; the inner seal prevents contamination of the resistor by fumes from the outer epoxy resin seal. Application of the heater to, for example the crank-case of a refrigerator, is by means of aluminium strips coated with adhesive (59, 61, Fig. 1, not shown) that assist further by transferring heat from the housing.
Patent GB-645800-A (GB)
Title: Improvements in and relating to apparatus for dispensing liquids
IPC: B67D7/40
Filed: 1948-10-18
Abstract: 645,800. Hose reels. BECK & CO., Ltd., and SOAR, H. G. Oct. 18, 1948, No. 27006. [Class 99(ii)] [Also in Group XVIII] Apparatus for dispensing liquids includes a delivery hose F which is reeled and is provided with means for returning it automatically to the reeled position when it has been unreeled. A delivery pipe 12 leads to a pipe 14 mounted to rotate in bearings 16 and fixed to the hub 18 of the hose reel E, which has side cheeks 20 held apart by spacers 22 which form the nave on which the hose is wound. The means for returning the hose include a pulley 38 fixed to the hub 18 and a counterweight arranged to slide in guides and attached to a belt 34 which passes round a guide pulley and is fastened to the pulley 38. The inner end of the hose is connected to the hub 18 so as to be in communication with the pipe 14 through passages 24, 26 in the hub, which passages are connected through a sight discharge indicating glass 28. Specification 645,801 is referred to in the Provisional Specification.
Patent GB-1518609-A (GB)
Title: Abrasion testing
IPC: G01N3/56
Filed: 1977-05-16
Abstract: 1518609 Measuring resistance to wear COMBINED OPTICAL INDUSTRIES Ltd 16 May 1977 [29 June 1976] 27070/76 Heading G1S A disk shaped specimen to be abraded is mounted on a turn-table 2 and subjected to pressure by an abrading wheel 7 rotated by a motor 6 and supported by a rotatable and slidable portion 3A of a counterweighted arm 3 pivoted about and traversable along a screwed rod 4. The wheel 7 is arranged to move in a spiral path over the specimen.
Patent GB-1035138-A (GB)
Title: Hydraulic braking system incorporating a booster
Inventor: FINEMAN HAROLD
IPC: B60T13/10
Filed: 1964-07-01
Abstract: 1,035,138. Fluid-pressure brakes. GIRLING Ltd. June 4, 1965 [July 1, 1964], No. 27075/64 Heading F2F. In an hydraulic braking system employing a tandem auxiliary cylinder 21 the primary piston 22 of which is operated by a vacuum booster 26 controlled by hydraulic pressure produced by a tandem master cylinder 10, the arrangement is such that the booster control valve is sensitive to the pressure of fluid in either or both pressure spaces 14, 17 of the master cylinder. These pressure spaces, which are respectively supplied by separate reservoirs 15, 18 via a tiltable replenishing valve 16 and a valve 19 which is controlled by the secondary piston 13, are respectively connected via pipes 31, 48 to the secondary chamber 29 and to the space behind the primary piston 22 of the auxiliary cylinder, and also to chambers on opposite sides of a floating piston 51, whereby the pressure in either or both of the spaces 14, 17 acts on a differential control piston 45 whose other, smaller diameter, end is acted on by the corresponding output pressures in chambers 29, 32 which act on opposite sides of a second floating piston 54, via passages 33, 36. Pipes 35, 37 connect the outputs of the auxiliary cylinder respectively to the front and rear brakes of a vehicle, or alternatively to separate cylinders acting on the same brakes. The control piston 45 acts on the stem of a T-shaped member 44 carrying poppet valves 39, 41 controlling respectively a vacuum supply line 42 from the front chamber of the booster and an atmospheric air supply pipe 43, whereby either vacuum, in the unboosted condition, or air, when the booster is to be actuated, is communicated via pipe 38 with the rear chamber of the booster. When the booster is actuated it causes piston rod 25 to close recuperation port 24 in the primary piston 22, while subsequent movement of secondary piston 23 causes recuperation valve 27 to close.
Patent GB-393821-A (GB)
Title: Radio-electric musical instrument with keyboard and thermionic valves
IPC: G10H1/34
Filed: 1932-09-29
Abstract: 393,821. Electromagnetic switches. COUPLEUX, E. E., 24, Rue Esquermoise, Lille, Nord, and GIVELET, J. A. M. V. de P., 24, Rue Bois-de-Vent, Paris, both in France. Sept. 29, 1932, No. 27084. Convention date, Oct. 16, 1931. Addition to 359,967, [Group XXXVIII]. [Class 38 (v).] The musical instrument of the parent Specification, comprising oscillating thermionic valve circuits with means for suppressing interference beats, is modified by the provision of a switch consisting of wires 1, as shown in the Figure, and a conducting bridge 3 normally shortcircuiting a coil, e.g. in the grid circuit, so that when actuated by a key energizing electromagnet' 4, the armature 2 by an insulated portion 2a lifts the wires 1 from the bridge 3, de-short-circuiting the coil to sound a note. The armature 2 is restored by gravity. Specification 378,070, [Group XXXVIII], also is referred to.