baber/WOPTO huggingface dataset:
Patent GB-296509-A (GB)
Title: Improvements in welding electrodes
IPC: B23K35/365
Filed: 1927-06-28
Abstract: 296,509. Imray, O. Y. (E. M. F. Electric Co. Proprietary, Ltd.). June 28, 1927. Uniting by fusion.-A metal electrode for electric arc welding has a coating containing a substance decomposed in the arc to liberate hydrogen to protect the fused metal from oxidation and nitrogenation. The coating, which comprises fluxes and slags, contains vegetable black or like carbonaceous material and a hydrated silicate of alumina such as china clay, the combined water from which is liberated in the arc and is converted by the carbon into molecular hydrogen and carbon monoxide. A .portion of the hydrogen in passing through the arc is converted into atomic hydrogen which on reaching the work is reconverted into molecular hydrogen with the consequent freeing of latent energy and increasing of the effective heat of the arc. A reinforcement such as asbestos or mineral fibre or wire is wound round the core; or wire gauze may be embedded in the coating to strengthen it against breakage and against detachment from the core. The coating mixture, which contains a binding substance such as silicate of soda, is applied in paste form and then dried, preferably by hot air treatment, and may contain 20 per cent of china clay and 10 per cent of lamp black. Reference has been directed by the Comptroller to Specification 3762/11.
Patent GB-599493-A (GB)
Title: Improvements in or relating to ultra high frequency apparatus
IPC: G01S7/40
Filed: 1944-09-08
Abstract: 599,493. Test apparatus for ultrahigh frequency pulse systems. SPERRY GYROSCOPE CO., Inc. Sept. 8, 1944, No. 17231. Convention date, Aug. 18, 1943. [Classes 40 (iii) and 40 (v)] A test device for ultra-high frequency pulse radiolocation apparatus comprises a conductive box resonator 11 formed of flat parallel top and bottom walls 12, 13, flat parallel side walls 14 with reinforcing ribs 19, 21, and a flat rear wall 15. The front wall 16 is dished to form a paraboloidal reflector 18 with a central aperture, formed with a forwardly extending boss 24 feeding the resonator. A short tube 25 functioning as a wave-guide is secured to the boss 24 and a reflecting plate 26 is located opposite the open mouth of tube 25 by conductive or dielectric supports 28. The whole resonator and the associated external reflector and feed arrangements are thus contained wholly inside the cubical form defined by the box walls. The shape of the resonator is such that oscillations at a plurality of frequencies and modes can exist and when the resonator is excited by a pulse from a radiolocation transmitter, oscillations are set up and continue after the end of the exciting pulse, re-radiation to the radio location receiver occurring during the period, which is long compared with the pulse-duration, required for the decay of the oscillations. Specification 599,486 is referred to.
Patent GB-966723-A (GB)
Title: Motor vehicle safety device
IPC: G08B7/06
Filed: 1963-05-02
Abstract: 966,723. Indicating devices. FORD MOTOR CO. Ltd. May 2, 1963 [May 7, 1962], No. 17306/63. Heading B7H. [Also in Division H3] A motor vehicle is provided with apparatus to produce a signal indicative of the instantaneous frequency of steering wheel reversals as a measure of the activity of the vehicle driver. It is stated that each driver has a characteristic range of frequency which is departed from when he drives too fast or is fatigued. The apparatus preferably comprises a data storage device 20 (Fig. 1) supplied with an input from device 10 responsive to steering wheel reversals and an input from device 30 which steadily reduces the content of the storage device the total contents of which at any time are indicated at 90. Preferably a warning device 80 is operated on departure from the characteristic range. In Fig. 2, a finger 16 with a felt tip 17 contacting a ring 13 on steering wheel shaft 12 closes contacts 8, 18 of switch 10 when the shaft is rotated clockwise, at least, to actuate pulse generator 20 to supply a pulse signal to C.R. storage device 50 which charges a condenser 38 with a discharge path through resistors 39, 40. The potential in resistor 39 is tapped by potentiometer wiper arm 41 and unbalances sensitive amplifier bridge 100 to give a reading on ammeter 114 indicative of the rate of steering reversals. An audible warning device 80 is connected to the amplifier. In Fig. 3 a bimetallic strip 53 forms the storage device, bending of which moves arm 54 of variable resistor 55 and hence varies the current flowing in ammeter 91 which is calibrated in steering reversals. In operation, when switch 10 is closed by rotation of the steering wheel, current flows from battery 11 through closed contacts 27 and heater element 32 of time delay 23, thereby closing thermal switch 33. Current then flows from the battery through switch 33 and solenoid 34 closing contact pairs 35, 36. Closing of the contact pairs 36, 35 allows current to flow respectively, through resistor 42 and bimetallic strip 53 and through coil 37 of relay 24 drawing extension 28 of switch 22 to the left and opening contacts 27, thus cutting off the current through heater 32 which cools allowing switch 33 and hence solenoid switch 34 to open cutting off the current through bimetallic strip 53 and terminating the current pulse. In the characteristic frequency range of the driver, the bimetallic strip remains between the adjustable contacts 56 57, connected to audible warning device 80 which is actuated when the frequency departs from the characteristic range unless short circuit switch 82 is closed.
Patent GB-276630-A (GB)
Title: Improvements in or relating to means for automatically switching on the lighting setof a vehicle
IPC: G04C23/16
Filed: 1927-06-29
Abstract: 276,630. Zweigenhaft, J., and Russ, G. Aug. 30, 1926, [Convention date]. Clockwork actuation -The clock on the dashboard of a vehicle is provided with means for automatically lighting the lamps at a predetermined time. A cam disc 14 with a slot 15 is mounted coaxially with the sleeve 17 carrying the hour hand 7 and is rotated into a predetermined position by rotating a spindle 10 carrying a pinion 11 engaging a pinion 12 fixed to the cam disc 14. At the predetermined time a pin 19 connected to the sleeve 17 engages the notch 15 and the cam disc 14 is moved downwards by a leaf spring 20, the free end 20<1 >of which also moves downwards and becomes disengaged from a lever 23 pivoted at 22. The lever 23 then rotates under spring actuation and its end 24 presses a contact spring, not shown, into engagement with a fixed contact. To reset the apparatus, the spindle 10 is moved downwards longitudinally, a cone 33 on it engaging and rotating the lever 23 till its end snaps over and is held again by the spring 20<1>. The pinions 11 and 12 remain in engagement during this action.
Patent GB-711807-A (GB)
Title: Improvements in or relating to electromagnetic waveguides, transmission lines and like apparatus
Inventor: HALFORD GORDON JOHN
IPC: H01P5/02
Filed: 1951-07-21
Abstract: 711,807. Matching impedances in waveguides &c. MINISTER OF SUPPLY. July 14, 1952 [July 21, 1951], No. 17333/51. Class 40 (8) In order to minimize the impedance mismatch in waveguides, co-axial lines, &c., where a change of transmission characteristics is introduced, the resultant reflection is reduced to zero by making the transitional portion of length 1 = p #go/2 where #go is the largest wavelength for which a match is required and p is any integer greater than 1, the transitional portion being of such a form that the reflection coefficient varies within the portion from zero to a maximum and back again to zero so that at any distance x from one end of the portion the reflection coefficient is proportional to the coefficient of exp. (j°) in one expansion of the expression: where °/p#=x/l, and S is a constant p. may conveniently be 2. The desired law may be achieved by applying a suitable taper to the physical dimensions or disposition of the conductors forming the boundaries of the transmission system, and/or of a component associated with the system (dielectric filling or attenuator element) and/or by suitable graduation of the electrical properties of a component associated with the transmission system (the impedance of a load or attenuating element). In one embodiment, Fig. 4, a dielectric slab 2 which serves to impose a phase shift on waves propagated down guide 1 is of uniform thickness and has both ends profiled as shown, for the one end, the profile constituting two parabolae joined as in the curve of Fig. 2. The taper for a block of dielectric of cylindrical form is as in Fig. 5, in which the first part of the taper becomes a two-dimensional linear taper extending from the tip A to point B (halfway along the taper) and of diameter #2/2 times the final diameter Do and thereafter, from point B to point C, the angle of the taper is progressively reduced, according to the relation (Do<SP>2</SP>-D<SP>2</SP>) proportional to distance from C. The length AC is approximately one wavelength in the guide.
Patent GB-372591-A (GB)
Title: Thread-cutter operating mechanism for sewing machines
IPC: D05B3/08
Filed: 1931-06-16
Abstract: 372,591. Button-hole sewing-machines. FAIRWEATHER, W., 65, Chancery Lane, London.-(Singer Manufacturing Co. ; Elizabeth, New Jersey, U.S.A.) June 16, 1931, No. 17439. [Class 112.] The thread-cutter, tension device, and work clamp of a button-hole sewing-machine are operated from a shaft 28 which is rocked by the recovery motion of a buffer device described in Specification 309,771. The impulse is imparted to the shaft by a hooked lever 67 which on the recovery motion engages with shoulders 74 of a cam 69 adjustably secured to a gear 47, containing the buffer springs. The lever 67 is held out of engagement until the recovery motion by a stud 76 secured to the stop-motion lever 57. Thread cutters.-The cutter is pivoted to the work clamp and is connected by a link 23 to a sliding rod 24. When sewing down the return side of the buttonhole, the rod 24 encounters a, latch arm 27 and its motion is arrested while the continued motion of the work clamp opens the thread cutter. When sewing is completed the thread cutter, which is held open by the latch arm 27, is released by the actuation of the rock shaft 28. Tension devices.-The tension release rock shaft 31 is rocked from the shaft 28 by a bent arm 29 and link 30, and an arm 32 is arranged close to the tension discs 33 so that the tension device is opened before the cutter is released. Work clamps.-The work clamp 19 is operated from the shaft 28 by a bell-crank lever 34, 35 and a rod 39 which carries the work clamp lifting roller 41. On the rocking of the shaft 28, the roller 41 depresses the tail 18<1> of the work-clamp lever 18 and raises the clamp foot 19. The bell-crank lever 34, 35 is locked during sewing by lever 43 which is provided with a lip 44 engaging an arm 45 on the shaft 28. It is unlocked by the same movement of the shaft 28 which releases the thread cutter and opens the tension device.
Patent GB-122162-A (GB)
Title: Improvements in Pistons for Internal Combustion Engines.
IPC: F02F3/28
Filed: 1918-10-28
Abstract: 122,162. North British Diesel Engine Works, Ltd., and Maclagan, J. C. M. Oct. 28, 1918. Pistons.-The pistons of internal-combustion engines are provided with a readily detachable plate to prevent damage from overheating. The piston,shown has a flared recess in the crown in which is secured by a split ring E a removable plate D. A layer C of asbestos or other insulating material may be placed under the plate.
Patent GB-511891-A (GB)
Title: Improvements in and relating to filters
IPC: B01D35/12
Filed: 1938-06-14
Abstract: 511,891. Filters. MAHLE, H. June 14. 1938, No. 17623. Convention date, June 15, 1937. [Class 46] A filter having filter members arranged in pairs, one member of each pair acting as a filter while the other member is being cleaned, the functions of both members being reversed simultaneously by a change-over-member, is characterized in that each pair of filters is removably inserted in a common casing, the members being separated by a wall which accommodates the inlet and outlet passages for the liquid to be filtered. In the construction shown, a filter casing 1 is divided by a partition 2 into two chambers containing filter members 6, 9 mounted respectively, on pipes 5, 8. Each pipe is adapted to be closed at one end by a ball valve and is formed with a small hole 24. The partition 2 is provided with a change-over member 11, and with passages 14, 15 connecting with an outlet 16. With the member 11 in the position shown, liquid entering at 12 passes through pipe 5, opens valve 21, and passes in through filter 6 and through the opening 14, some of the filter liquid passing to the outlet 16. The remainder flows through passage 15 and through the filter 9, thereby cleansing it. The liquid then escapes through the hole 24 into pipe 8 and through passage 13 back to the source of supply.
Patent GB-612992-A (GB)
Title: Preparation of fluoro-chloro compounds
IPC: C08F14/24
Filed: 1946-06-13
Abstract: High melting polymeric trifluoromonochloroethylene is heated to between 400 DEG  and 700 DEG  C. to form the monomer, dimer and low melting polymers, which are promptly cooled.  The pyrolysis is preferably carried out in a closed system in apparatus made of platinum, carbon or "Inconel" (R.T.M.), if desired in an atmosphere of nitrogen or helium under reduced pressure.  Heat transfer media, e.g. fluorspar and carbon, may be present.  The process may be continuous.  The products may be separated by fractional condensation or fractional distillation.  The putty-like waxy low melting polymers may be used as lubricants for valves and stopcocks, for extrusion as filaments and coatings on fabrics.ALSO:High melting polymeric trifluoromonochloroethylene is heated to between 400 DEG  and 700 DEG C. to form the monomer, dimer and low melting polymers, which are promptly cooled.  The pyrolysis is preferably carried out in a closed system in apparatus made of platinum, carbon or "Inconel" (R.T.M.), if desired in an atmosphere of nitrogen or helium under reduced pressure.  Heat transfer medium, e.g. fluorspar and carbon, may be present.  The process may be continuous.  The products may be separated by fractional condensation or fractional distillation.  The putty-like waxy low melting polymers may be used as lubricants for valves and stop-cocks, for extrusion on filaments and coatings on fabrics.
Patent GB-918440-A (GB)
Title: Flame-proof and/or fire retardant polymers
IPC: C08K13/02
Filed: 1961-05-16
Abstract: The flame-proof or fire retardant properties of a composition of an alkenyl aromatic polymer with ammonium bromide, are synergistically enhanced with an organic phosphate or phosphite and/or a benzotriazole, e.g. tricresyl phosphate, 2-OH-5-Me-benzotriazole, 1-H-benzotriazole or 1-H-benzotriazole-1-methanol.  The composition components may be admixed with the polymer with the aid of aqueous media and spray drying, and may comprise as optional additives corrosion inhibitors such as the diethyl amine salt of octyl phenyl esters of phosphoric acid, solubilizers such as polyoxyethylene sorbitan monolaurate and emulsion stabilizers such as polyethylene glycol ethers.  Preferred polymers are those of styrene, vinyl toluene, a -methyl styrene, and styrene with butadiene-styrene copolymer.
Patent GB-1109437-A (GB)
Title: Production of cast coated paper
IPC: D21H19/82
Filed: 1965-04-28
Abstract: Cast surfaced, coated paper is produced by applying a first pigment-adhesive coating composition by means of a blade coater to at least one side of a paper or paperboard rawstock, drying the coating, machine calendering said coated paper, and thereafter applying a second pigment-adhesive coating composition to the dried coating and pressing against a polished metal surface and drying in contact therewith.  The rawstock may be prepared for coating by tubsizing with materials such as starch or starch derivatives.  In the embodiment, paper rawstock is tubsized with a water dispersion of hydroxy ethyl ether derivative of starch, machine calendered, and a base-coat composition comprising calcium carbonate, coating clay, butadine-styrene latex solids, starch, calcium stearate, sodium hexametaphosphate, melamine formaldehyde resin is applied on both sides of the rawstock. After drying, the paper is calendered and cast coated on the wire side as described in Specification 838810.  Paper suitable for high quality printing is produced.
Patent GB-152764-A (GB)
Title: Improvements relating to wind screens for motor cycle side cars, motor cycles, motorcars, and other purposes
IPC: B62K27/16
Filed: 1919-07-21
Abstract: 152,764. Easting, C. A. July 21,1919. Weather screens.-A wind-screen for motorcycles, side-cars, &c. is held in an adjustable position by means of connecting-links 4 pivotally attached to brackets 1, 11 respectively secured to the screen and car &c. Serrated engaging members are provided on the brackets and link ends round the locking-pins 7, and spring washers 9 are arranged under the securing-nuts 8, whereby the screen may be secured at the desired angle and position relative to the passenger. One of the links 4 may have a radial slot or opening at one end so that it may be readily disconnected, to enable the passenger to pass into or out of the car. In a modified construction, the wing-nuts 8 are formed with conical extensions engaging similarly-shaped sockets to secure the parts in the locked position. Specifications 108,334, 109,601, and 152,765 are referred to.
Patent GB-1213234-A (GB)
Title: Improvements in insulated electrical conductors
Inventor: LAURELL LARS G
IPC: H01B9/02
Filed: 1968-04-17
Abstract: 1,213,234. Cable terminations. ALLMANNA SVENSKA ELEKTRISKA A.B. 17 April, 1968 [18 April, 1967], No. 18071/68. Heading H2E. A cable has conductors 1 covered by insulation 2 and semi-conductive layers 3 the whole being wrapped in another semi-conductive layer 4, a conductive layer 5, which in use is at a potential considerably different from conductors 1, and a protective layer 6, the exposed ends of the insulated conductors having wrappings 7 of semiconductive tape wound over a layer of coldvulcanizing silicon rubber paste to make overlapping contact with semi-conducting layer 3 at one end of the wrapping. In a single core cable layer 4 is omitted.
Patent GB-545223-A (GB)
Title: Improvements in articulated structures such as chain grate stokers
IPC: F23H11/04
Filed: 1940-12-24
Abstract: 545,223. Endless conveyers. PARTRIDGE, H. E., and ELLIOTT, J. W. Dec. 24, 1940, No. 18124. [Class 78 (i)] [Also in Group XII] In a chain grate stoker or like articulated load carrying conveyer wherein the load carrying members or bars. are supported on transverse pins connected to driving chains, the pins are of such shape in cross section that the load supporting bars may be readily removed by rotating the pins or moving them longitudinally. In the chain grate stoker shown in Figs. 1 and 2, the pins 10 on which the grate bars are supported are provided with flats 11 engaging with slots in the webs of the bars having a circular portion 15 and a narrow gap 16 of the same width as the flats on the pins. The pins are connected by links 21, 22 of driving chains, the links 22 engaging with teeth 24 on sprocket wheels 25. The grate bars comprise intermediate bars 18, saddle bars 17, which are supported above the sprocket wheels, and end bars 12. The pins engaging with each transverse group of bars are locked at the ends by locking plates 27 and washers 30. In a modification, shown in Fig 4, the pins 32, which may be formed in sections, have reduced portions 33 which when brought beneath a firebar allow the latter to be removed. The pins are locked in position by screws 39. engaging with holes in the end bars 35. The pins are connected by driving links 41, 42 the links 41 engaging with teeth on the driving sprocket wheels. The gaps 16 in the bars may be so arranged that one edge of each gap is tangential to the circular part of the opening in the web of the bar.
Patent GB-832825-A (GB)
Title: Improvements relating to power assisted steering gear for road vehicles
Inventor: SADLER FRANCIS ANTONY DAWSON
IPC: B62D5/06
Filed: 1957-06-07
Abstract: 832,825. Vehicle power steering. GIRLING Ltd. June 6, 1958 [June 7, 1957], No. 18135/57. Class 79(5) In a power steering system in which each of a pair of drag links 21, 23, Fig. 2, is connected to one or more steerable wheels, the links are actuated from the ends of a two-armed lever 13, 14, Fig. 1, which is mounted on the same axis as the drop arm 10 with limited relative angular movements for operation of the sensing valve link 24. The two-armed lever 13, 14 is mounted on a boss 12 of the drop arm 10 which has projecting lugs 15, 16 to limit the relative rotation. The lower end of the drop arm 10 is coupled to the actuating link 24 of the sensing valve and the hydraulic actuator 19 is coupled between a fixed point on the vehicle and a spherical joint 22 on the end of the arm 13. Specification 812,913 is referred to.
Patent GB-1383930-A (GB)
Title: Deflection yokes for use with cathode ray tubes
IPC: H04N3/22
Filed: 1972-04-19
Abstract: 1383930 Colour television tubes SONY CORP 19 April 1972 [20 April 1971] 18140/72 Heading H1D In a colour television tube of the shadow mask type, mis-registration of the beam caused by thermal expansion of the mask is avoided by winding the deflection coils on a core part of which has a permeability which varies with temperature so that the centre of deflection moves to compensate for movement of the mask. The core may be cylindrical with a temperature sensitive part at one end; if the permeability decreases with temperature the part should be at the front end (Fig 2, not shown); if the permeability increases with temperature the part should be at the rear end. The vertical deflection coil may be toroidal and the horizontal coil saddle-shaped.
Patent GB-108421-A (GB)
Title: Improvements in Mortars for Crushing Materials.
Inventor: DUNKER LOUIS
IPC: A47J19/04
Filed: 1916-12-19
Abstract: 108,421. Dunker, L. Dec. 19, 1916. Pestles and mortars.-Relates to mortars particularly for use in crushing bone, oyster shell, and stones for use for poultry, and comprising a tubular member having a removable base adapted to fit therein. According to the invention, the base B is reversible, one side being concave, the other side flat, corrugated, or the like. The base may be supported by the surface on which the tubular member A rests, as shown in Figs. 1 and 3, or by a circular rib F formed within the member as shown in Fig. 4.
Patent GB-600505-A (GB)
Title: An improved alkylation of aromatic hydrocarbons
IPC: C07C2/68
Filed: 1944-09-26
Abstract: Aromatic hydrocarbons are alkylated with olefins using a preformed complex of aluminium chloride with an aromatic hydrocarbon as catalyst, polyalkylated products being separated and recycled to the alkylation.  The catalyst is preferably prepared by contacting at room temperature, aluminium chloride, an excess of the same hydrocarbon, such as toluene or benzene, as that to be alkylated, and an activator such as hydrogen chloride, alkyl chloride or water.  The complex is formed after 15-20 mins. and separates as a heavy liquid. It may contain, for example, up to 6 moles. of toluene per mole. of Al2Cl6.  Toluene and propylene in a molar ratio of 0.74-3.6 : 1 may contact the catalyst at 85 DEG  F. in the presence of added toluene dialkylate, the products, after separation of catalyst, being fractionated in two stages, first to separate toluene and then polyalkylated toluene for recycling and to recover cymene isomers.