baber/WOPTO huggingface dataset:
Patent GB-639883-A (GB)
Title: Improvements in or relating to protective devices for electric circuits and apparatus
IPC: H01H71/24
Filed: 1947-12-13
Abstract: 639,883. Automatic circuit-breakers; electromagnetic switches. BROOKHURST SWITCHGEAR, Ltd., and ROBINSON, D. B. Dec. 13, 1947, No. 32886. [Class 38 (v)] An electromagnetic overload relay may be converted into an automatic circuit-breaker with hand-resetting from either side or the front of the device by changing the position of some of its parts. The relay comprises a trip bar 19 which is slotted at 21 to engage upturned lugs 20 on the frame and is tilted counterclockwise, Fig. 5, on overload, so that a screw 33 carried thereby bears on the arm 37 of a contact-carrying, bell-crank lever 35 and rocks it to open contacts 38, 40, the parts resetting automatically, when the overload ceases, under the action of springs 42, 44, the former of which is an extension of the contact spring 38 and is connected to a terminal 43, and the latter being a backing spring for spring 38. To convert the relay into the automatic circuitbreaker, the screw 33 is removed and it, or a screw 45, is inserted in the end of the arm 36 of the lever 35. The head of this screw normally bears against a lug 32 on the bar 19, Fig. 7, the contact 38 being held in engagement with the contact 39 against the action of springs 42, 44, the contact 40 in this case acting only as a step, and the bar 19 being urged to the left by a spring 25. On overload, the lug 32 moves below the screw 45 and the contacts 38, 39 open, but the lever 19 is held in this. new position by the screw 45 moving over lug 32. The switch is reset by pushing the bar to the right and then releasing it, thereby releasing lug 32 from beneath the screw 45. The switch may be reset from the right-hand side (Fig. 9, not shown) by making suitable rearrangements of the parts. Specification 552,602 is referred to.
Patent GB-314039-A (GB)
Title: Device for correcting radiogoniometric indications on board a ship
IPC: G01S1/02
Filed: 1928-11-10
Abstract: 314,039. Soc. Maritime Nationale. June 22, 1928, [Convention date]. Directive signalling. - A device for automatically correlating the critical setting of a direction-finding frame aerial with the true compass bearing comprises three concentric discs 3, 2, and 5 shown in plan in the Figure mounted around the shaft 7 carrying the rotating frame aerial. The outer disc 3 is marked with the ordinarly compass points and can be adjusted to any desired position and then fixed by set-screws 4. The intermediate disc 2 is marked so as to correct for quadrantal error, and is permanently fixed in such a position that the arrow R lies along the lubber-line of the ship. The centre disc 5 is rotatable by means of a milled knob 6. In operation the outer disc 3 is rotated until the ships bearing coincides with the lubber-line R. The frame aerial is then swung over the zero-signal arc, the inner disc 5 being meanwhile positioned so that a mark S bisects the swing of the frameaerial pointer 9. thus indicating the exact critical setting. The correction markings on the intermediate disc 2 are such that the radial line touched at one end of the mark S indicates at its other end on the outer disc 3 the true or corrected radiogoniometer reading.
Patent GB-282380-A (GB)
Title: Improvements in or relating to spoke covering discs for vehicle wheels
IPC: B60B7/04
Filed: 1927-12-06
Abstract: 282,380. Candellero, A. Dec. 18, 1926, [Convention date]. Spoke-covering discs of the kind formed of a main disc 8<1> bearing against the wheel felloe and a flange 6 which bears against the wheel hub and a smaller central disc 13, have the main disc secured wholly or mainly by means of end pressure obtained by securing the central disc to the hub. The inner flange 17 of the main disc is provided with apertures 18, some or all of these apertures being larger than the wheel securing nuts 5, and the central disc 13 is loosely mounted) on an externally screwed sleeve nut 15 adapted to scrow on to a bolt 14 secured to the wheel hub.
Patent GB-486120-A (GB)
Title: Improvements in moveable, flexible covers for vehicles
IPC: B60J7/10
Filed: 1936-12-02
Abstract: 486,120. Vehicle hoods and covers. RHODES, W. F. W. Dec. 2, 1936, Nos. 33028/36, 3126/37, 6405/37, and 7758/37. [Classes 103 (ii) and 108 (i)] A flexible cover' for a refuse, passenger, or other vehicle is weighted towards its ends and supported at its centre at a predetermined distance above the floor of the vehicle by a roller, rollers, spar, or the equivalent so that as one part of the cover is moved in one direction, so as to cover or uncover a portion of the vehicle, the other part moves in the opposite direction. As shown in Fig. 1, a wagon cover C carries weights C<1> and is supported by a roller R against which it may be spring-pressed or held by a second roller R<1>. In order to enclose objects extending to the sides of the vehicle, the sides of the cover or projections therefrom may engage guides G in the end members B which may contain notches &c. to hold the cover in certain positions and stops to limit the maximum movement of the cover. Alternatively, eyelets &c. on the edges of the cover may engage fixed wires &c. Stiffening strips secured lengthwise to the cover may co-operate with grooves in the roller to act as additional guides. A series of overlapping covers arranged side-by-side may be used, the adjoining edges moving in guides. When three covers are provided each may be independently supported or the two end ones may be supported by a common roller and the central one by a second roller offset from the first. As shown in Figs. 2, 3, the cover passes over three rollers R and through channel-shaped guides G<1>, the lower ends of which are open to permit the escape of water. Means such as screws may be provided in the guides to hold the cover in any position. Instead of the guides G, Fig. 1, and G<1>, Figs. 2, 3, the covers may carry forked members co-operating with fixed rails on the vehicle. In another form of the invention, to ensure tautness of the cover, adjustable slides D, Fig. 9, enclose the cover while permitting movement of the cover therethrough, the slides moving in the guides and carrying clips, screws, &c. D<1> for securing and releasing the slides to and from the cover, screws &c. D<3> fixing the slides to the guides in any position. Each side or end of the vehicle may be provided with a cover, the inner weighted ends of which move in wells or guides above the floor. The cover may consist of fabric, fabric and rubber, &c., and be carried by rigid cross-rods which slide in the guides. The first Provisional Specification describes also a support for the cover comprising a rounded metal or wooden spar fixed to each end of the vehicle which may carry a second spar adapted to clamp the cover against the first spar.
Patent GB-1120813-A (GB)
Title: Polyurethane filaments and foils
Inventor: THOMA WILHELM
IPC: C08G18/10
Filed: 1965-08-03
Abstract: Elastic filaments and foils are prepared by reacting a linear dihydroxy compound of M.W. 500-5000 and melting point below 60 DEG C. with an excess of an aromatic diisocyanate to form a prepolymer having -NCO groups, and reacting said prepolymer with a polyester of M.W. 500-5000 and melting point above 180 DEG  C., in a solvent and forming the viscous solution into foils or filaments. The linear dihydroxy compound may be a polyester, polyether, polythioether or polyacetal.  The polyester of melting point above 180 DEG  C. may be derived from terephthalic acid, ethylene glycol and butane 1,4-diol. Chain lengthening agents, e.g. dihydroxyamides, ureas or hydrazodicarboxylic acid amides melting above 160 DEG  C. may also be added, e.g. diphenylmethane 4:41-di-(b -hydroxyethyl) - urea, diphenylmethane 4:41-di-(4 - hydroxycyclohexyl) - urea, oxalic acid di-(b  - hydroxyethyl) - amide, 1:4 - cyclohexane-di-(g -hydroxybutyric acid) amide, terephthalic acid di - (g  - hydroxypropyl) - amide and hydrazo dicarboxylic acid (g -hydroxypropyl)-amide. The solvent may have a boiling point of 150-330 DEG  C. and may be a halogenated or nitrated aromatic compound, an ester or ether.
Patent GB-1512030-A (GB)
Title: Ignition system for internal combustion engines having timing stabilizing means
IPC: F02P7/03
Filed: 1975-08-11
Abstract: 1512030 Ignition systems BRUNSWICK CORP 11 Aug 1975 [14 Aug 1974] 33376/75 Heading F1B An ignition system for an internal combustion engine includes a triggered switch device 31 to 33 or 31' to 33' having a threshold forward conducting level and a reverse blocking level and arranged to be triggered in response to a signal developed by rotation of the engine, a bias signal unit 50, 62 or 50' 62' connected to the switch device and arranged to receive the signal for establishing a modifying bias signal substantially proportional to the signal developed by rotation of the engine and utilizing a significant portion of the bias signal during triggering periods to establish an effectively variable threshold forward conducting level essentially matched to the signal developed by rotation of the engine, the bias signal level rising significantly above the reverse blocking level, and a bias signal limiting unit 58 or 58' connected to the bias signal unit and to the switch device so as to impress only a portion of the bias signal as a reverse voltage on the switch device in the interval between triggering periods, the reverse voltage being thereby limited to a value essentially below the reverse blocking level. As shown each one of two spark-plug groups 8 and 9 is connected via ignition transformer groups 26, 26' to similar capacitor discharge ignition units 10 and 11. The capacitor 12 is charged from an alternator portion 13 driven by the engine. The discharge of the capacitor 12 is controlled by a trigger generator 14 which is common to the circuits of both groups of plugs 8 and 9.
Patent GB-819167-A (GB)
Title: An electric locomotive with two bogies comprising means for distributing the axle loading
IPC: F22B29/06
Filed: 1955-11-22
Abstract: 819,167. Electric locomotives. ZAVODY, V. I. LENINA NARODNI PODNIK, and GROLMUS, M. Nov. 22, 1955 [Nov. 23, 1954], No. 33413/55. Class 103(6) An electric locomotive of the type in which the body is connected to the bogies by spherical pivots A, B and the axles have each a drive motor, is provided with automatically operated air-pressure cylinders 1...4, the cylinders 1, 2 being brought into use when the locomotive moves in a direction to the right and the cylinders 3, 4 being brought into use when the locomotive moves in the opposite direction so that the three leading axles during traction are subjected substantially to the same load. Assuming that the locomotive is to be moved to the right, the force Pl applied to the cylinder 1 and the force P2 applied to the cylinder 2 are derived from the formulae where V is the tractive force exerted by each motor at the circumference of the two wheels driven thereby and the other letters in the formulae are as indicated in the Figure. In a modification, the cylinders 2 and 4 are dispensed with, in which case to achieve the desired result the condition a + g/2a = h/p must be fulfiled.
Patent GB-1355683-A (GB)
Title: Aggregate containing a treating agent for altering concrete properties
IPC: C04B20/10
Filed: 1971-07-16
Abstract: 1355683 Modified concrete R J ALBERT 16 July 1971 [11 Aug 1970] 33533/71 Headings C1H and C1J Concrete with modified physical properties is made by using a light weight porous aggregate whose pores are filled with a liquid which contains a substance which alters at least one physical property of the concrete when set. The liquid may be an aqueous solution of metal, e.g. Na, K, Li, Ba, Sr, Cu or Zn silicates, carbonates, bicarbonates, chlorides or sulphates, or an organic material, e.g. ethylene glycol in a liquid vehicle, an aqueous suspension of melamine resins, latices of alkyl acrylate and polyvinyl chloride polymers, or organo silicon compounds. Pore-filling is carried out by either immersing the aggregate at normal or elevated temperatures in the liquid, or by evacuating the aggregate and allowing the liquid to fill the vacuum. The exemplified concretes are made using portland cement. The lightweight aggregate can be slag, clay, shale, slate, diatomite, scoria, tuff, pumice, fly ash, alumina, glass powder, expanded vermiculite or perlite.
Patent GB-1155882-A (GB)
Title: A Device For Firing A Blank Cartridge
Inventor: ONIONS JOHN WILKINSON
IPC: G08B15/00
Filed: 1966-07-26
Abstract: 1,155,882. Blank cartridge firing device. J. W. ONIONS. 27 April, 1967 [26 July, 19661, No. 33543/66. Heading F3C. A blank cartridge firing device comprises a base 10 having an upstanding column 12 with guides 14 formed therein, a blank cartridge holder 16 being provided, which holder is adjusted to be slotted into the guides 14. A trigger 28 is pivotally and preferably spring- loadedly mounted on the base 10, which trigger in its cocked position co-operatea with a detent 38 until released therefrom by a trip wire or the like. In the construction shown, the trigger 28 is formed with a firing pin 36 which strikes the blank cartridge through a countersunk hole 26. A metal shield 22 is secured to the holder. In a modification (Figure accompanying Complete Specification, not shown) a shield is provided integrally with the base and the holder is formed with a horizontally projecting guard piece.
Patent GB-1085921-A (GB)
Title: Hydraulic servo control systems
IPC: F15B9/00
Filed: 1964-08-17
Abstract: 1,085,921. Fluid-pressure servomotor systems. SANDERS ASSOCIATES, Inc. Aug.17, 1964 [Sept. 5, 1963], No. 33558/64. Heading G3P. [Also in Division F2] A control valve 31 for a hydraulic servopiston (not shown) and ports 13, 50, 51, 37 are formed to provide lamina flow to prevent noise. The apparatus may be employed in steering, diving and hovering controls for a submarine craft. Reduced portions 32, 33 of the valve are formed by continuous, smooth curves and have radially extending vanes 34, 35, and the ports have vanes 52. Port 13 is a pressure fluid supply port which may be connected by the valve with either of two motor ports 36, 37, and ports 50, 51 are return ports. The valve is positioned by fluid-pressure difference under the control of a flapper 24 which coacts with nozzles 11, 12 fed from the port 13. The flapper is actuated electromagnetically by signals from an amplifier 57 which is fed from a summing network 56 having an error signal input 61, 62 and a feedback input 55 from a tachometer driven at a speed proportional to the flow rate in the port 36 by a rotor 45.
Patent GB-1436613-A (GB)
Title: Fluid pressure control system for variable displacement pumps
IPC: F02D29/04
Filed: 1973-07-13
Abstract: 1436613 Fluid-pressure servomotor systems CATERPILLAR TRACTOR CO 13 July 1973 [17 July 1972] 33577/73 Heading G3P The displacement of pumps 10, 11 is reduced by servo-controls if the speed of a prime mover 13 driving the pumps is reduced or the sum of the output pressures from the pumps is increased beyond a predetermined value. A valve 23 provides a fluid-pressure signal to the servo-controls when the pressure drop across a throttle 22 is decreased in consequence of a fall in output from a fixed displacement pump 20 driven by the prime mover. The signal passes to the servo-controls by way of a shuttle valve 28 which also passes a signal to the controls when the sum of the output pressures from the pumps is sufficient to displace a spool valve 33. Primary control is effected by the valve 23 with the valve 33 opening in response to sudden peak pressures. The prime mover may be an I.C. engine and drives a second fixed displacement pump 12. A valve 40 limits the pressure supplied by the first fixed displacement pump 20.
Patent GB-174810-A (GB)
Title: Improvements in or relating to switch-back and other amusement railways
IPC: A63G31/00
Filed: 1920-11-29
Abstract: 174,810. Boughey, A. L., and Quick, H. Nov. 29, 1920. Railways for recreation. - In switchback and like railways of the type in which the passenger cars A are rotated upon their axes by the impact of projections L with fixed spring contacts M, each car is mounted on a spoked underframe F, which rotates on a ball bearing G mounted on a central sleeve K forming part of the undercarriage B when the rotation slows down, and so stops the car entrance E opposite the landing- stage.
Patent GB-418873-A (GB)
Title: Improvements in the manufacture and production of malleable iron
IPC: C21D5/06
Filed: 1933-11-30
Abstract: To convert cast iron into malleable iron it is placed in a container, the air is displaced by a substantially inert, non-oxidizing atmosphere and the iron is heated up to a temperature preferably between about 1700 and 1800 DEG  F. and maintained at this temperature until substantially all the graphitic carbon has been absorbed.  The temperature is then reduced, preferably gradually, to, for example, about 1200 DEG  F. to precipitate the carbon and during the whole or a part of this period a small amount of an oxidizing gaseous medium is admitted to aid the formation of temper carbon and to oxidize at least a portion of the carbon.  The container is then sealed and allowed to cool, or if desired, a carburizing gaseous medium may be admitted and the temperature raised for example to 1600 DEG  F. to case-harden the malleable iron.  The gases are preferably passed continuously through the container throughout the heating period. The non-oxidizing atmosphere may be produced by passing into the container the products of combustion from a chamber in which some carbonaceous material, such as gas or oil, is burned, preferably to complete combustion so that the non-oxidizing atmosphere consists of a mixture of nitrogen and carbon dioxide.  Small amounts of carbon monoxide and even oxygen are stated not to be deleterious as long as the resultant mixture remains substantially inert and non-oxidizing. During the carbon precipitation period the atmosphere is modified by mixing with it a sufficient amount, e.g. 1-3 per cent, of oxygen, which may be added to the products of combustion as pure oxygen or atmospheric air or may be produced by changing the conditions in the combustion chamber.  If, after decarburizing, it is desired to case-harden the malleable iron carbonaceous material in gaseous, liquid, or solid form is added to the combustion chamber to produce an atmosphere containing a substantial amount of carbon monoxide, or carbon monoxide or other carburizing gas may be otherwise introduced into the container. The pressure in the container may be maintained at a value above atmospheric during any or all of the stages of the treatment.
Patent GB-1353874-A (GB)
Title: Electric model aeroplane having an automatic lowering and landing device
IPC: A63H27/00
Filed: 1972-07-19
Abstract: 1353874 Toy aeroplanes MABUCHI MOTOR CO Ltd 19 July 1972 [25 Oct 1971] 33764/72 Heading A6S A toy aeroplane has a pivotally-mounted tailplane 11 urged to a tilted position, Fig. 2 (not shown), by a spring 14 and held in a normally horizontal position against the spring by an electromagnet 6 energised by a battery 4 which also drives an electric motor 2 to rotate a propeller 3. When the battery 4 is almost exhausted and the magnet 6 can no longer overcome the tension of the spring 14, the tailplane is tilted so that the aeroplane can descend in a substantially horizontal attitude.
Patent GB-1369894-A (GB)
Title: Rubbery compositions and applications thereof
IPC: B29B15/00
Filed: 1972-07-19
Abstract: 1369894 Coated articles POLYSAR Ltd 19 July 1972 [3 Aug 1971] 33787/72 Heading B2E [Also in Division C3] The insides of pipes, tanks, &c. are lined by applying thereto a composition comprising (1) a terminally reactive diolefin polymer curable to a rubber composition, e.g. liquid dibromo-polybtuadiene; (2) a curing agent for the diolefin polymer, e.g. a polyethylene imine; (3) a rubbery thermoplastic polymer, e.g. a block copolymer of styrene or α-methyl styrene with butadiene; and (4) a solvent for the thermoplastic polymer, e.g. toluene or toluene/cyclohexane mixture. The compositions may also contain asphalt and a filler, e.g. carbon black, silica or mixtures thereof. In Examples, the compositions are formed in two parts which are mixed immediately prior to use, one part comprising the diolefin polymer, solvent, part of the thermoplastic polymer and fillers, &c. and the other part comprising further thermoplastic polymer, solvent and the curing agent. The compositions may be applied by painting, scraping, spraying through a rotating spray head or by casting centrifugally by spinning the pipe or vessel. Curing is then effected. The surface to be coated may be primed, e.g. with a polyurethane or organosilane.
Patent GB-1300934-A (GB)
Title: Stripping polymeric material from wires and cables
Inventor: SUTCLIFFE HENRY
IPC: H01B15/00
Filed: 1969-07-04
Abstract: 1300934 Removing polymeric material from wires BRITISH INSULATED CALLENDERS CABLES Ltd 5 Oct 1970 [4 July 1969] 33813/69 Heading C7E [Also in Division H2] A method of stripping polymeric material from a wire or cable comprises cooling the material to a temperature at which it is brittle and then applying forces to fracture and remove it from the wire or cable. A wire 1 is drawn by a capstan 4 from a reel 2 and passes through an elongate trough 3 full of liquid nitrogen, and then through a stripping head 6 and finally through a brush 7 which removes any loose fragments of insulation from the wire and collects them by suitably positioned suction nozzles 8. The stripping head 6 may be in the form of three or five guides arranged to flex the wire, or alternatively may be in the form of two rollers between which the wire passes and is crushed. For longitudinal splitting of the insulation three sharp-edged splitting rolls may be arranged around the wire so that they partly penetrate the insulation. Ultrasonic vibrations may be employed to remove or assist in removing the embrittled material. This method may be used for stripping ends of wires, for reprocessing of wire, or for scrap recovery.
Patent GB-475010-A (GB)
Title: Process for the conversion of hydrocarbon oils
Filed: 1936-12-09
Abstract: <PICT:0475010/III/1> In a cracking process of the kind in which crude oil containing a substantial quantity of natural gasoline is cracked in a coil 6 and the products are passed through a line 10 into the upper portion of an enlarged reaction vessel 11 through which the vaporous and liquid products pass downwardly and are removed together through a valved line 12 into a separator 14, the separated vapours being fractionated in a tower 19 with recovery of gasoline in a cooler 31 and receiver 34, the reflux condensate collected at the bottom of the column 19 is heated in a coil 25 to higher cracking temperatures than those employed in the coil 6 and then introduced through the line 10 into the vessel 11 in sufficient amount to reform the natural gasoline present in that vessel.  Temperatures specified for the primary and secondary heating elements are 425--510 DEG  C. and 480--570 DEG  C. respectively under pressures of the order of 16--55 atmos.