baber/WOPTO huggingface dataset:
Patent GB-390169-A (GB)
Title: Improvements in or relating to the testing of a.c. feeder or like circuits
IPC: G01R31/02
Filed: 1931-09-29
Abstract: 390,169. Protective cut-out arrangements. REYROLLE & CO., Ltd., A., Hebburn-on-Tyne, COATES, F., Cranlea, Whitburn Road, Cleadon, Co. Durham, and HARLE, J. A., 221, Jesmond Road, Newcastle-on-Tyne. Sept. 29, 1931, No. 27065. [Class 38 (v).] An alternating-current feeder B, Fig. 1, is tested before being connected to a main network by injecting a suitable alternating-current from a source A into the feeder through a step-up potential transformer A<1>, A<2>, and comparing the current produced in the transformer and feeder with that produced by the source A in a circuit H representative of the transformer and feeder when healthy. The transformer A<1>, A<2> may be normally used for measuring or protecting. As shown in Fig. 1, the two currents are compared by a differential relay G which operates to energize a lock-out coil B<2> on the feeder circuit-breaker B<1>, or to actuate an indicator or alarm. In another arrangement an auxiliary transformer is used having two differential primary windings energized by the two currents respectively, the secondary of this auxiliary transformer energizing a relay controlling a lock-out winding. In a further arrangement the two currents are compared by a Wheatstone bridge circuit. In Fig. 4 an arrangement is shown in which any one of a number of feeders may be automatically tested and connected to the supply network if healthy. Closure of a switch O energizes a relay M .which connects an auxiliary testing source A to the potential transformer A<1>, A<2>, connected with a feeder B. The relay M also connects a time delay relay P which is energized if the contacts G<3> on the testing relay 4 remain closed, i.e. if the feeder B is healthy, the relay P finally energizing the closing coil B<4> of the feeder circuit-breaker B<1>. The circuit-breaker B<1> in closing disconnects the testing source from the transformer A<1>, A<2>, and connects if for measurement or protective .operation. Electricallyreleased switches.-If the circuitbreaker is closed by a handle S, Fig. 5, the operation of the testing relay may energize a coil B<2> which moves a locking roller Tlinto recess Q<4> on a circuit-breaker actuating member Q, thus preventing the downward movement of the handle S after it has been raised, which is the normal movement for closing the circuit breaker. The driving connection between the handle S and the actuating member Q, comprises a spring-loaded pivoted catch S<1> which engages with a roller Q<3> on the member Q. A switch U, U<1 >on the handle S puts the testing apparatus into operation when it is closed during the upward movement of the handle. Instead of the locking arrangement, shown in Fig. 5, the coil B<2> may act to prevent the catch S<1> engaging the roller Q<3>, or it may place a stop in the way of the upward or downward movements of the handle S. In all the arrangements described, the testing relay may be so arranged that a locking out device for the feeder circuit-breaker is released if the feeder is found healthy.
Patent GB-1178356-A (GB)
Title: Stable Concentrated Solutions of Basic Dyestuffs and a Process for their Preparation
IPC: C09B67/34
Filed: 1968-06-07
Abstract: 1,178,356. Basic dye solutions. CIBA Ltd. 7 June, 1968 [23 Aug., 1967], No. 27318/68. Heading D1B. Stable concentrated solutions of basic dyes contain a salt of a basic dyestuff derived from a water soluble mineral or carboxylic acid, an alcohol which is solid at room temperature and soluble in water, or a water soluble derivative thereof that is solid at room temperature, or a water soluble carboxylic acid amide or a nitrile that is solid at room temperature or a water soluble lactam or a lactone that is soluble at room temperature or a water soluble internal ether that is solid at room temperature. The alcohol is preferably a polyhydric alcohol, and the acid is preferably an aliphatic mono- or dicarboxylic acid.
Patent GB-381716-A (GB)
Title: Improvements in the manufacture of hard or highly viscous materials
IPC: H01B3/20
Filed: 1931-10-03
Abstract: Rosin is dissolved in a solvent such as petroleum oil, with which other bituminous products or synthetic resins may be incorporated, and a substance, e.g. lime, capable of forming with the rosin a rosinate or abietate is added.  The mixture is at first liquid or semi-liquid and may be cast or moulded; it sets to a highly viscous or hard substance.  It is particularly useful for electrical insulation.  According to an example 15-40 parts of rosin, 15-35 parts of petroleum pitch, and 35-50 parts of transformer oil are mixed.  To 100 parts of the mixture are added 3-24 parts of a paste consisting of equal parts of slaked lime and transformer oil.  In other examples the petroleum pitch is replaced by coal tar pitch, Gilsonite, and coumarone resin.
Patent GB-616860-A (GB)
Title: Improvements in and relating to battery testing devices
IPC: G01R31/36
Filed: 1946-09-14
Abstract: 616,860. Battery testers. PARTRIDGE, WILSON, & CO., Ltd., and HARDWICK, A. R. Sept. 14, 1946, No. 27641. [Class 37] A battery testing device consists of two contact prongs 1, a meter 45 and a shunt 3, enclosed in a moulded case, provided with a pistol grip for use with only one hand. A metal gauze 34 gives protection from and ventilation for the shunt, which is separated from the meter by a heat baffle 35. A lamp 22 is provided to illuminate the meter dial.
Patent GB-413259-A (GB)
Title: Improvements in or relating to rubber heels
IPC: A43B21/06
Filed: 1932-10-05
Abstract: 413,259. Rubber heels. MAGYAR RUGGYANTAARUGYAR RESZVENYTARSASAG, 17, Kerepesi-ut, Budapest. Oct. 5, 1932, No. 27713. Void [Abridged as open to inspection under Sect. 91 of the Acts, Oct. 6, 1932]. [Classes 17 (ii) and 17 (iii).] A rubber heel comprises two or more layers of rubber of different composition united by vulcanization, one of the layers containing at least 20 per cent of fibrous material, e.g. leather waste. This layer may be roughened and attached to the shoe by adhesive and nails. The layers may be of different thickness and the lower face of the outer layer is grooved or ribbed to prevent slipping.
Patent GB-482753-A (GB)
Title: Improvements in screw drivers
IPC: B25B23/18
Filed: 1936-10-13
Abstract: 482,753. Screwdrivers. CROFT, E. C. Oct. 13, 1936, No. 27781. [Class 61 (iii)] A screwdriver handle provided with electric battery, lamp and switch enabling light to be directed along the stem of the screwdriver embedded centrally in the handle to illuminate the work comprises a metal cap B, a metal front portion B<1> to take the screwdriver A, and a central body B<2> of insulating material, the battery C<2> being retained in a hollow in the parts B, B<2> by means of a metal disc D and spring D<1>. Pressure on the finger switch D<3> causes the passage of current from the lower end of the battery through boss C<4>, metal plug C<1>, switch D3, plug D5 spring D<7> and insulated member D<6> to the lamp terminal E<1> of lamp E and thence to the metal member B<1> connected by bolts to metal cap B and so back to the other battery terminal. In a modification, Fig. 4, the handle F<1> is of synthetic resin and the current from the lower end of the battery H<2> passes through lamp terminal, lamp casing J, metal plate J<1>, contact K and metal strip H<3> back to the other battery terminal H<1>.
Patent GB-867046-A (GB)
Title: Improvements in and relating to hygrometric elements
IPC: G01N27/22
Filed: 1958-08-29
Abstract: 867,046. Hygrometric elements. JASON, A. C., and LEES, A. Aug. 31, 1959 [Aug. 29, 1958], No. 27822/58. Class 40 (1). A method of manufacture of hygrometric elements in which a rod such as that described in Specification 732,969 using an outer metal electrode on aluminium oxide produced by electrolytic oxidation of the base aluminium wire electrode by sulphuric acid, is stored under certain conditions for three to six months and then is carefully dipped in a saturated large or heavy anion solution, such as sodium tungstate. This may then be cycled between different humidities until its physical characteristics are stable. The embodiment shown in Fig. 1 consists of aluminium oxide 12 on aluminium wire 11 overlapped at one end by an epoxy resin or other insulating sleeve 13 on to which is placed an aluminium conducting sleeve 14 which connects the porous outer electrode 17 to a connecting- wire 15 both being superimposed but insulated from each other. An alternative construction can be used in which the porous electrode is applied before the conducting sleeve which overlaps it and connects it to the wire, Fig. 2 (not shown). Specification 805,051 also is referred to.
Patent GB-966939-A (GB)
Title: Improvements in overspeed trip devices for rotary machines
Inventor: GARDNER THOMAS LOWTHIAN
IPC: H01H35/10
Filed: 1962-07-20
Abstract: 966,939. Protective devices for dynamo-electric machines. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 20, 1963 [July 20, 1962], No. 28012/62. Heading H2A. [Also in, Division F1] In an overspeed trip device for a rotary machine having rotor-mounted bodies 7, 9 coupled together by a pivoted lever 25 and moving in opposite directions in parallel paths transverse to the axis of rotor 1, the centre of mass of at least one of the bodies is offset from the rotor axis so that centrifugal force causes it to move outwardly against the action of a spring 19 to operate trip gear at excessive speeds, the masses of the bodies and lever means and the mechanical advantage of the lever means being so selected that transverse accelerations of the rotor do not cause sufficient relative movement between the bodies and the rotor to operate the trip gear. The device may be applied to a steam turbine rotor (see Division F1) or to a rotary converter. In modifications, the spring can act on either or both bodies or one body may constitute the eccentric mass whilst the body operates the trip gear or both bodies have their centres of mass displaced from the rotor axis in opposite directions.
Patent GB-1168138-A (GB)
Title: Card Filing Systems
Inventor: DAHL ERNEST ALFRED JR
IPC: B42F17/02
Filed: 1967-06-17
Abstract: 1,168,138. Card indexes. E. A. DAHL. 17 June, 1967, No. 28048/67. Heading B6E. A card-filing appliance comprises a tray 22 of non-magnetic material with permanent magnets 50 mounted on the sides 32, 34 of the tray, divider cards 26 with magnetically-permeable side elements 82 which under the action of magnets 50 develop polarity acting to repel adjacent cards from one another, and information cards 28 of non-magnetic material filed between the divider cards 26. The bottom edges of the cards 26, 28 rest upon cork strips 62 secured to a bottom panel 40 having a central channel 64. Tongues 66 on the divider cards 26 project into the channel 64 and have apertures 68 engaged by a removable rod 70. Liners 46 of low-friction material attached to the tray sides have tapered upper edges 48 for guiding the cards into the tray. Rigid non- magnetic control plates 102 may be situated at the ends of the card index and at intermediate positions, these plates having notches 108 to accommodate the rod 70 and depending tongues 104 to engage slots 106 in the bottom panel 40. The upper edge of one part 84 of each divider card 26 is of greater height than the other part 86, and the height of the information cards 28 is greater than that of the part 86, so that parts of the cards 28 are exposed for easy removal. An information-free section 100 is provided on the exposed parts for grasping by an operator. The information cards 28 may comprise film strip material divided into rectangles 96 each bearing a microfilm of a page of a catalogue, except that one rectangle 98 contains a guide to the material contained in the other rectangles.
Patent GB-1198157-A (GB)
Title: Improved Metallurgical Apparatus and process
Inventor: HEE CHOO KON
IPC: F27B1/00
Filed: 1968-06-13
Abstract: 1,198,157. Cupola melting of iron. C.K. HEE. June 6, 1969 [June 13, 1968], No. 28069/68. Heading C7D. [Also in Divisions F3-4] A cupola furnace 1 is provided with lower cold combustion air main inlets 7 and above them, supplementary hot combustion air inlets 9. Heated air and combustion products, from one or more oil or coke fired auxiliary furnaces (Fig. 3 not shown) are tangentially supplied through lines 10 to refractory lined annular mixing chamber 8 surrounding the furnace 1, to pass into it through the inlets 9. Shaped refractory blocks 17 lining the chamber 8 ensure a uniform hot air distribution around the furnace periphery. Coke charged to the furnace is combusted by the cold air supply from main inlets 7, the heated supplementary air maintaining a high temperature fusion zone above the main combustion air inlet level. Slag and molten metal are tapped through outlets 6, 4 respectively. The hot air supplied is about 50% by volume of that of the cold air, and is heated to 900-1000‹ C. The power air supply may be enriched with or replaced by oxygen.
Patent GB-533539-A (GB)
Title: A process for proofing paper, cardboard, woodpulp, strawboard, cotton, silk, wool and all textiles against water, alcohol, ether, petroleum, chloroform and other solvents
IPC: D21H17/22
Filed: 1939-10-18
Abstract: 533,539. Proofing permeable materials. POPOVICI, S. Oct. 18, 1939, No. 28135. [Class 140] Paper, cardboard, wood-pulp, strawboard and textiles of cotton, silk or wool are rendered impermeable to water and solvents such as alcohol, ether, petroleum and chloroform by impregnation with an aqueous composition comprising gelatine, glycerine and a soap such as sodium or potassium oleate, palmitate or stearate to which aluminium sulphate and plasticizers and an ethyl palmitate may be added, followed by treatment with aqueous formaldehyde. The product may be dried at atmospheric temperature or passed between heated rolls.
Patent GB-1106929-A (GB)
Title: Improvements relating to lighting fittings
Inventor: MANN REGINALD WILLIAM
IPC: F21V21/03
Filed: 1965-07-02
Abstract: 1,106,929. Spanners. VICTOR PRODUCTS (WALLSEND) Ltd. 3 Aug., 1966 [2 July, 1965], No. 28162/65. Heading B4W. [Also in Division F4] A thin Y-shaped tool as shown is provided to enable the male and female threaded halves of a connector for mounting lighting fittings to be screwed together.
Patent GB-649035-A (GB)
Title: Improvements in or relating to the manufacture of structural members cast from cementitious material
IPC: B28B3/02
Filed: 1947-10-21
Abstract: 649,035. Moulding cementitious material. MACERATA, S. Oct. 21, 1947, No. 28177. Convention date, Aug. 29, 1947. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 7, 1948.] [Class 87 (ii)] Structural members of cementitious material, such as beams having U or V-shaped recesses, are made in a mould having fixed bottom and end members and movable top and sidemembers. Enough material as is required for the member is put into the mould; the conformation of the mould is then changed by forcing the side-members towards one another and the top member towards the bottom until the interior of the mould conforms to the required shape of the member, the material being displaced, one mould member being vibrated during and/or after formation of the structural member. In the mould shown, side members 2, 2 and top member 4 carrying a core 6 are moved inwardly by jacks 38, 39, vibrators 45 being carried by the jack mechanism. In a modified mould, not shown, for making a pair of J-section girders, two side members each carrying cores are moved inwardly towards a stationary internal core supported by a vertical partition. Air and water are permitted to escape whilst the mould members are being moved and pressure may be maintained after they have moved to their moulding positions. The Specification as open to inspection under Sect. 91 comprises also a modification of the mould of Fig. 1 in which the side members are fixed. The Specification also describes (a) a mould 2 for T-beams, Fig. 2 (Cancelled), having a movable top-member 4 with several cores 6; (b) a mould, Fig. 3 (Cancelled), having fixed side members 2 and movable top and bottom members 1, 14; (c) a mould for a Y-section beam, Fig. 7 (Cancelled), having members 19, 20 movable on inclined planes 46, 47. Reinforcement 13 is included in the beams produced by the mould of Fig. 2. The top member 1 of the mould of Fig. 3 has an escape vent 17 for air and water. This subject-matter does not appear in the Specification as accepted.
Patent GB-279850-A (GB)
Title: Improvements in refrigerating plants
IPC: F25B17/00
Filed: 1927-10-24
Abstract: 279,850. Aktieselskabet Amundsen Refrigerator Co., (Assignees of Amundsen, I.). Oct. 29, 1926, [Convention date]. Refrigerating, absorption machines for. -In apparatus working on the reversing absorption or adsorption system, a receiver 4 is provided between the condenser 3 and the evaporator 6 and is fitted with a non-return valve 8, which prevents passage of vapour to the evaporator during the generating period but allows vapour to return from the evaporator and liquid to pass from the receiver to the evaporator when the pressure above the valve is reduced during the absorption period. The receiver may have a heat-insulating jacket 5. The generator-absorber 1 comprises concentric annular chambers a, b, c filled with absorbent or adsorbent material and surrounded by annular jackets for the cooling ard heating media. The chambers communicate with the condenser through a common flow and return pipe 2. The generator-absorber is provided with heating-means as described in Specification 291,039. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of a floatcontrolled valve in the receiver, and cooling of the generator-absorber by condenser-water as set forth in Specification 229,702. This subject-matter does not appear in the Specification as accepted.
Patent GB-171580-A (GB)
Title: Improvements in or relating to machines for trussing straw and other fodder
IPC: A01F1/00
Filed: 1920-10-06
Abstract: 171,580. Andrews, C. H. Oct. 6,1920. 1920. Baling-presses. - Relates to machines for trussing straw &c. of the kind in which a pair of intergeared pivoted curved members are adapted to embrace the material to be trussed, and consists in the provision of means whereby the compression may be increased during bonding. Jaws f, f<1> are mounted on shafts e, d which are intergeared by toothed quadrants g or by levers. The jaw f is provided at its free end with a jointed lever h, h' pivoted at j to the jaw and the parts at h<2> to each other. The part h<1> carries a wheel k, and the inner end of the part h is formed with a toe-piece r and a tooth s adapted to engage a chain p. In use, the jaws are closed preliminarily by upward pressure on the lever, a ratchet l and stop n preventing retrogression. The chain p is passed over the pulley k and is connected to a link o on the jaw f<1>. The lever h, h<1> is manipulated to grip the chain and to draw the jaws together, and is brought down to the position shown in full lines to lock the parts.
Patent GB-483483-A (GB)
Title: Improvements in or relating to temperature control devices
IPC: A01K41/00
Filed: 1936-10-19
Abstract: 483,483. Thermal switches. WRENTMORE, G. W., and GLOUCESTER INCUBATORS, Ltd. Oct. 19, 1936, No. 28400. [Class 38 (v)] In a temperature-control device for incubators, &c. a thermal element 10 disposed within a heated chamber operates through a rod 7 a rocking arm 5 mounted externally of the chamber, the arm 5 in its movement about a pivot 3 causing the operation of a mercury switch 19 controlling the supply of heated air to the chamber. The mercury switch 19 is mounted on an arm 18 carrying an armature 12 which is moved about its pivot 13 by the movement of a horseshoe magnet 11 fixed on the arm 5. Rise of temperature moves the switch "off" and cuts off the supply of current to the heater, or to one of two elements of a heater. Should the temperature of the incubator still continue to rise a stud 31 on the arm 5 engages a screw 32 and tilts an arm 33 about its pivot 34 causing a rod 27, carrying a damper 26 at one end and a counterweight at the other, to pivot about 28. This raising of the damper 26 allows hot air to escape to 'the atmosphere. Specification 384,025 is referred to.
Patent GB-737244-A (GB)
Title: Improved materials for precision casting
IPC: B22C7/02
Filed: 1953-10-15
Abstract: A destructible moulded pattern for the lost-wax process of casting metals consists of a mixture of 30 to 85 per cent polyethylene and ozokerite.  The mixture may be moulded by injection at high or low pressure or by top casting.  In an example a mixture of equal parts of polyethylene (M.W. 30,000), and ozokerite is used.
Patent GB-293615-A (GB)
Title: An improved talking machine
IPC: G10K13/00
Filed: 1927-10-27
Abstract: 293,615. Taylor, B. W. Oct. 27, 1927. Cases with internal horns.-A gramophone having an internal horn is provided with horizontal and vertical sound boards arranged below and to the rear of the horn, the horn being supported at its mouth from the horizontal board and merely bearing, by rneans of a bridgepiece secured at its inlet end, against the vertical board. Fig. 1 shows the horn 12 supported through spacing washers 19 on a horizontal sound board 13 resting on ledges 14, 15, and bearing by the two ends of a bifurcated bridge 24 against a vertical sound board 20 extending from the motor board 3 to the bottom of the cabinet.
Patent GB-911009-A (GB)
Title: Improvements in or relating to apparatus for automatic control of machines
Inventor: LANGECKER ERHARD
IPC: B29C45/76
Filed: 1960-08-18
Abstract: 911,009. Machinery safety devices. BATTENFELD, W. Aug. 18, 1960, No. 28680/60. Class 80 (4). [Also in Groups V and XXII] A moulding-machine, e.g. an injection- or, as shown, a blow-moulding-machine, is prevented from operating until an ejected article interrupts a light beam falling on a photo-electric cell. Interruption of the beam during working, e.g. by an operator's hand, stops the machine.