baber/WOPTO huggingface dataset:
Patent GB-761727-A (GB)
Title: Safety reversing signal for motor vehicles
IPC: B60Q1/22
Filed: 1954-10-06
Abstract: 761,727. Road -traffic signals on vehicles. SMITH, B. Oct. 25, 1954 [Oct. 6, 1954], No. 28714/54. Class 118 (2).  A blue light signal incorporating the letter R is mounted on a vehicle so as to give a warning indication when the vehicle is being reversed. The signal is mounted on the roof or high up on the bodywork of the vehicle so as to be visible both from the front and the rear. It may be operated either from a switch on the dashboard or by movement of the gear lever into the reverse position. An audible warning device may be operated when the light is illuminated.
Patent GB-503036-A (GB)
Title: Improvements in and connected with stroboscopes
IPC: G01P3/40
Filed: 1937-10-21
Abstract: 503,036. Delivering and gathering molten glass. BRITISH HARTFORDFAIRMONT SYNDICATE, Ltd. (Hartford-Empire Co.) Oct. 20, 1937, No. 28617. [A Specification was laid open to inspecticn under Sect. 91 of the Acts, Oct. 3, 1938.]. [Class 56] A forehearth for conveying molten glass to a feeder or gathering device is provided with heating devices which enable a suitable temperature gradient to be obtained in the glass longitudinally of the forehearth, and substantial uniformity of temperature across the width of the glass. The forehearth may be of the type comprising a rear cooling section 1, Fig. 1, a forward heating or homogenizing section 2, and a delivery chamber 3. A block 13 separates the space above the glass from the body of the tank 10, and a similar block 14 separates the spaces in sections 1 and 2. The roof above both sections is fitted with flues 29 and 33 provided with dampers 32 which can be adjusted by a suitable device such as a lever 38, Fig. 3, operated by a screwed rod 41. The walls of the chambers 1, 2 include refractory blocks 15 which are placed above the level of the glass and have conical combustion tunnels 16 therein: The larger end of each tunnel is bevelled off at an angle and its bottom wall is cut away at 16b. The inner end of each tunnel is fitted tightly with a nozzle 44 so that air cannot enter around the nozzle. The nozzles are connected to manifolds 50 which are supplied with a predetermined mixture of gas and air so arranged that combustion in the tunnels is complete. The combustion causes the inner surfaces of the tunnels to become incandescent, and the shape of the bevelled ends causes heat to be radiated downwards into the glass at the 'sides of the flow channel 4 and thus ensure uniformity of temperature across the width of the glass. Suitable devices are provided for controlling the supply of gas to each of the chambers 1, 2 in order to obtain a temperature gradient along the forehearth to suit the rate at which the glass is withdrawn The delivery end of the forehearth is semicircular in shape and is provided with combustion tunnels. Specification 498,204 is referred to.
Patent GB-1514758-A (GB)
Title: Data bearing card having magnetizable colourless transparent coating composition thereon and said coating composition
IPC: G11B5/70
Filed: 1975-07-09
Abstract: 1514758 Credit card R B KUHNS 9 July 1975 28817/75 Heading B6A [Also in Division C3] A data-bearing card comprises a plastics substrate with a photograph thereon, said photograph being overcoated with an optically transparent plastics sheet bonded to said photograph, wherein said optically transparent plastics sheet has a coating composition, which overlays said photograph, which comprises (i) a transparent colourless plastic matrix having a refractive index of 1À3 to 1À6; (ii) from 10 to 60% by volume, based on the total volume of the composition, of a particulate, crystalline dispersed phase, said crystalline dispersed phase having a refractive index identical to that of said plastic matrix, and which consists of a solid crystalline reaction product (1) 20 to 60% by weight of a colourless compound which contains a ferromagnetic ion; (2) 0À1 to 5% by weight of a refractory oxide selected from titanium dioxide and/or zirconium dioxide; (3) 0À05 to 5% by weight of a metal fluoride; (4) the balance of up to 100% by weight of a glass-forming matrix. The ferromagnetic ion is preferably selected from gadolinium, dysprosium, terbium, holmium and thulium. The glass forming matrix may comprise inorganic oxides, inorganic phosphates, inorganic borates, or mixtures thereof.
Patent GB-427258-A (GB)
Title: Improved rotary internal combustion engine
IPC: F01C1/344
Filed: 1933-10-18
Abstract: 427,258. Rotary engines. MEHTA, J. S., Wadia's Hill Bungalow, Kurla, Bombay, British India. Oct. 18, 1933, No. 28862. [Class 110 (ii)] A rotary internal-combustion engine comprises a rotor 1 having outwardly-sliding blades 3, and a casing 11 shaped as shown in Fig. 4, so that an Otto cycle takes place during one anti-clockwise revolution. Fuel is admitted through ports 12, and exhaust gives pass through ports 13 into a manifold 15 containing projections 21 which prevent the loss of lubricating oil, the latter being drained away at 22. A rotary valve 16 connects conduits 17 in the casing with the atmosphere for scavenging purposes, or if rotated through 180‹ the valve connects chambers 42 and 31 with the exhaust and inlet manifolds respectively. For reversing purposes the inlet and exhaust manifolds may be provided with change-over valves. Cooling water is circulated through bores 7 in the rotor which is hollow, by means of pumps 25, 26, which have suction and delivery pipes 28, 29, respectively, connected to a reservoir 24. The water in the latter is maintained at an even temperature through being in contact with water from a radiator or cooling tank. An axial duct 5 allows lubricating oil to be fed to radial channels in the rotor end to the blade slots. Sparking plugs or ignition tubes are situated in the casing end walls of compartment 36.
Patent GB-243024-A (GB)
Title: Improvements in electrolytic meters
IPC: G01R22/02
Filed: 1925-11-16
Abstract: 243,024. Chamberlain & Hookham, Ltd., (Assignees of Siemens-Schuckertwerke Ges.). Nov. 14, 1924, [Convention date]. Electrolytic meters have two or more measuring tubes open at one end only, and are mutually connected at the open ends. The invention is shown applied to a hydrogen meter having an anode container 1 and two measuring-tubes 2, 3 communicating therewith through the connections 4, 5, the part 5 being at an acute angle to the tube 2. The cathode 8 is so situated that the tube 2 is first filled, the evolved gas being subsequently deflected into the tube 3. The scale of the second tube 3 is arranged as a continuation of the scale of the tube 1. Specification 9337/07 is referred to.
Patent GB-142073-A (GB)
Title: Automatic starter for multi-cylinder explosion or internal combustion engines
IPC: F02N9/02
Filed: 1919-11-21
Abstract: 142,073. Gartmann, G. April 22, 1919, [Convention date]. Addition to 137,813, [Class 7 (v), Internal-combustion engines, Starting &c.]. Valves; valve-gear.-The invention relates to compressed-air or explosive-mixture starters having the system of distributing piston valves described in the parent Specification, and consists in modifications in which (1) the piston valves are arranged radially and are. acted upon by tension springs, and (2) the piston valves are controlled indirectly by cams through mushroom valves. A construction according to the first modification is shown in Fig. 2. The valves e are. arranged radially and are acted upon by tension springs f. At their inner ends, they contact with a rotary cam k having a depression which allows one or more of the cams to be moved into the opening position when compressed air or other gas is admitted to an annular groove c. A valve formed according to the second modification is shown in Fig. 3. The piston t which closes the port h is opened by the pressure gas when the mushroom valve p is raised by the cam r. The valve p has a seating on a sliding tube o. When the supply of compressed gas is cut off, the piston spring u raises the piston t, valve p, and tube o to such an extent that the cam r can turn idly without engaging the spindle of the valve. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification, Fig. 5 (Cancelled), in which the piston valves e are arranged in a row parallel to each other, each piston being controlled by a separate cam u. This subject-matter does not appear in the Specification as accepted.
Patent GB-899171-A (GB)
Title: Fractionation of gaseous mixtures
IPC: F25J5/00
Filed: 1958-09-11
Abstract: 899,171. Cold separation of gas mixtures. AIR PRODUCTS Inc. Sept. 11, 1958 [Sept. 12, 1957], No. 29096/58. Class 8(2). Separation of a compressed gas mixture e.g., air into its components nitrogen and oxygen is effected by cooling a major portion in a line 16, Fig. 1, of a heat exchanger 17 traversed by a first portion of cold low pressure nitrogen from the head of a conventional two stage column 26, further compressing at 18 the minor position of the feed air and cooling it in a line 20 of an exchanger 21 cooled by the remaining portion of the low pressure separated nitrogen traversing lines 42, 44 and also cooled by liquid oxygen withdrawn from the base of column 26 and pressurized by a pump 47 by which it is forced along a line 49 in which it is vaporized, and thereafter expanding the so-cooled minor feed air stream in a valve 22 and adding it to the cold major stream prior to admission through a line 23 to the high pressure column 25; the mass of the minor portion of the air feed being proportional relative to that of the said remaining portion of separated nitrogen and to the mass of the pressurized liquid oxygen so that the temperature of the incoming air is between 5 and 10 degrees above that of the separated component at the worm end of the exchanger 21. The proportioning is effected by control valve 15, 43 and by the pump 47. The feed air is freed of water vapour and carbon dioxide in a scrubber 10 and drier 11. In a modification extra refrigeration is provided by withdrawing the minor portion of feed air from a point 65, Fig. 2 (not shown) within the exchanger 21 cooling with an external refrigerant then re-introducing. said feed air into the exchanger at a point 68. In a further modification the major portion of the feed air is cooled in alternating nitrogen regenerators 105, 106 Fig. 3 and oxygen regeneration 107, 108 which also serve to remove water vapour and carbon dioxide. The minor portion of the feed air is branched off the main inlet line 100 at a point 101 and after further compression at 135 is freed of impurities in a scrubber 136 and drier 137 before being cooled in an exchanger 140 traversed by appropriate mass flow of liquid oxygen forced by a pump 146 through a line 148 and a portion of the separated nitrogen withdrawn from a line 160 to traverse a valvecontrolled line 163. Oxygen feed for regenerators 107, 108 is obtained from the gas space of. column 27 and a valve-controlled line 151. In a still further modification solid carbon dioxide is filtered from the further compressed minor portion of the feed air after cooling thereof in exchanger 140 and prior to adding the minor portion to the major portion of the feed air. In a still further modification using alternating nitrogen and oxygen regenerators part of the liquid oxygen pressurized by the pump 366, Fig. 5 (not shown) traverses lines 375, 376, 378, 379 embedded in the regenerators and thereafter traverses the exchanger wherein the minor portion of the feed air is cooled.
Patent GB-1293194-A (GB)
Title: Improvements in or relating to toys
Inventor: WILD SYDNEY
IPC: A63F9/08
Filed: 1970-06-16
Abstract: 1293194 Manipulative toys S WILD 9 June 1971 [16 June 1970] 29120/70 Heading A6S A manipulative toy comprises a rod 10 having spaced along its length projections 11 substantially normal to the length of the rod, and a disc 12 slidable along the rod and apertured at 13 such that it can pass each projection only when the disc aperture is correctly aligned with the projection. In the embodiment described pairs of opposed projections 11 are formed by a dowel 14 passed through a hole 15 in the rod and each dowel is normal to its adjacent dowel. The rod has a stop 16, past which the disc 12 cannot pass and a finger grip 17 by which the rod is suspended vertically. The disc may be formed with a groove 18, normal to the disc aperture 13 such that when the disc is supported by one pair of projections it may be easily aligned for passage over the adjacent pair of projections. The rod may be comprised of disconnectible parts (Figs. 3 to 6, not shown).
Patent GB-356512-A (GB)
Title: Improvements relating to stove and grate fireguards
IPC: F24B1/192
Filed: 1930-09-30
Abstract: 356,512. Fireguards. CHOAT, M., 4, Westbury Road, New Malden, Surrey. Sept. 30, 1930, No. 29228. [Class 126.] A wire gauze, perforated metal, or like screen A is provided with supporting brackets, clips, or the like C adapted to engage detachably the ashpit front cover B. The guard is supported with its lower edge immediately adjacent the top of the cover to prevent the passage of cuiders &c. between them. In the form shown the supporting brackets C hook over the ashpit cover B and are formed with rearward extensions E, which engage the underside of the grate F and prevent forward tipping of the guard.
Patent GB-1529135-A (GB)
Title: Apparatus for the production of matching fracture surface
IPC: H01J37/20
Filed: 1977-07-12
Abstract: 1529135 Preparing specimens LEYBOLD HERAEUS VERWALTUNG GmbH 12 July 1977 [24 July 1976] 29243/77 Addition to 1436100 Heading G2J The apparatus of the parent Specification for fracturing frozen electron-microscope purposes, has an electro-magnetic actuator to power the release lever.
Patent GB-939629-A (GB)
Title: Production of dried stock feed and apparatus therefor
IPC: A23K30/12
Filed: 1961-08-14
Abstract: 939,629. Dried stock feed for animals. F. ELLROTT. Aug. 14, 1961 [Aug. 25, 1960], No. 29254/61. Class 49. A dried stock feed is prepared by macerating a feed crop by thoroughly breaking up or bruising the outer coating of the crop without expressing the juice to any material extent while the crop still contains more than 80% of the moisture finally removed on full drying, compressing the macerated product to form coherent pieces retaining substantially all the plant juices and drying the pieces so formed. A mixed dried stock feed may be similarly obtained by separately macerating each of a plurality of feed crops and mixing the macerated products prior to the compressing and drying. Crops mentioned are: lucerne, Guinea, green panic, couch, summer, D-Buffel and spear grasses; sweet serghum, serghum and maize. Trace elements, vitamins and other supplementary food factors may be added to the crops during the treatment. The compression step preferably involves pressing the macerated product through open-ended tubes to form cylindrical pellets of volume from about two to ten to the cubic inch; alternatively bigger pellets in the form of thin flat cakes or sheets shaped like biscuits may be produced. Denser pellets may be made by allowing the wet macerated product to dry for a short time, e.g. an hour under warm, dry, natural conditions, before pressing. A machine for forming small cylindrical pellets of about <SP>1</SP>/ 6  cubic inch volume consists of a chamber 21 into which macerated material falls by gravity from a conveyer 20, a honeycomb of tubes 22, 23, and a mechanically or hydraulically actuated, reciprocating pusher 24. At each reciprocation the macerated product is forced into tubes 22 or 23 in turn and pelleted material emerging from the other end of the tubes falls on to a discharge conveyer 26.
Patent GB-716205-A (GB)
Title: Improvements in or relating to new phenthiazine compounds
Filed: 1951-12-14
Abstract: The invention comprises chlorinated phenthiazines of the formula <FORM:0716205/IV (b)/1> wherein the chlorine atom is in the 1- or 3-position and their preparation by heating a m-chloro-diphenylamine with sulphur preferably above 150 DEG  C., e.g. at 180-190 DEG  C., in the presence of iodine as a catalyst.  An example is given. Specifications 716,206 and 716,207 are referred to.
Patent GB-1397479-A (GB)
Title: Process of preparing an aqueous solution of ferric- aminopolycaroxylic acid comple'x cp,pimd
IPC: C07C229/76
Filed: 1973-06-20
Abstract: 1397479 Ferric amino polycarboxylic acid complex FUJI PHOTO FILM CO Ltd 20 June 1973 [28 July 1972] 29386/73 Heading C2C An aqueous solution of a ferric amino polycarboxylic acid complex compound is made by mixing in an aqueous medium or (a) an aminopolycarboxylic acid or a partial or complete neutralization product thereof and (b) metallic iron, and reacting the mixture with oxygen in the presence of a water-soluble iron salt. The aqueous medium may include an organic solvent. If the free acid or its partial neutralization product is used, the reaction product may be neutralized with a base, e.g. an ammonium or alkali metal base or a primary, secondary, tertiary or quaternary amine. Specified aminopolycarboxylic acids are nitrilatriacetic acid, ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, trans-1,2-diaminocyclohexane tetracetic acid, ethylene glycolbis-(aminoethylether)-tetracetic acid, 1,3-diaminopropane-2-ol-tetraacetic acid, N-(2-hydroxyethyl)ethylene diamine triacetic acid, ethylaminodipropionic acid and N,N,N<SP>1</SP>-tricarboxymethyl-N<SP>1</SP>-2-hydroxyethyl-ethylene diamine. The products are used in photographic bleach-fixing solutions.
Patent GB-408702-A (GB)
Title: Speed indicator
IPC: G01P11/00
Filed: 1932-10-20
Abstract: 408,702. Speedometers. SALOMON, F. M. M. B., 3, Rue de l'Universite, and GOVARE, H. P., 4, Rue Guy de Maupassant, both in Paris. Oct. 20, 1932, No. 29411. Convention date, Dec. 7, 1931. [Class 106 (iii).] A casing having a dial disposed perpendicular to its axis encloses an instantaneous speed indicator, a mean speed indicator and clockwork, all mounted behind the dial, the instantaneous and mean speed indications being shown adjacent, for example coaxial, on the same dial ; the mean speed indicator utilises the pivoted link differential mechanism described in Specification 408,803, having longitudinal spindles for returning the time and distance elements to zero. The instantaneous speed indicator may be of the centrifugal type disclosed in Specification 375,315. In the arrangement shown in Fig. 3, the instantaneous speedometer I, the mean speed indicator O and the clockwork H are carried by pillars 80<a> within the casing 75 having at the open end, a dial, with time and distance zeroizing spindles 88, 100 projecting at the sides of the dial. In a modification, the components O and H may be arranged side by side behind the component I. The arrangement of Fig. 3 is shown in detail in Fig. 4. The driving shaft 1 of the instantaneous speed indicator drives through worm gearing a spindle 14 which, through further worm gearing 15, 16, drives the general distance totaliser 33 and the daily totaliser 34. The distance cam 65 of the link differential mechanism described in Specification 408,803 and forming the essential component of the mean speed indicator, is driven at very reduced speed from the totalizer spindle through worm gearing 86, 87, a vertical spindle 88 and toothed gearing 89, 90. The spindle 88 can be moved out axially to disengage the worm gear 86, 87 and then rotated by the knob 102, to return the distance cam 65 to zero. The time cam 65<1> is rotated by a spring and is controlled by an escapement, the cam being secured to a spindle, which carries the gear wheel 94, and the inner end of a spring contained in the fixed barrel 92. The wheel 94 meshes with a wheel (not shown) mounted on a spindle carrying the wheel 98 which is in constant engagement with the wide gear wheel 99 on the end of the time zeroizing spindle 100. When the spindle 100 is pushed inwards by the knob 101, the gear wheel 99 meshes with gear wheel 97 connected by the wheel 96 and a series of wheels (not shown) with an escapement, so that the time cam 65<1> is then rotated by the spring at a definite speed. When the spindle 100 is withdrawn, as shown, the gear wheel 99 is clear of the wheel 97 and the escapement is disconnected so that the gear wheel 94 may be rotated by rotation of the knob 101 thus winding up the spring and zeroizing the time cam. To prevent back rotation of the gear wheel 94 during the winding, the gear 99 is connected by gearing 103, 105 to a ratchet wheel 108 engaged by a pawl which is put out of action by a cone 107 on the spindle 100 when the spindle is pushed in to put the escapement in gear.
Patent GB-1057391-A (GB)
Title: An electric control system for a direct current electric motor
Inventor: TECSY MIKLOS LASZLO ISTVAN
IPC: B66C13/24
Filed: 1962-07-31
Abstract: 1,057,391. Control of D.C. motors. ENGLISH ELECTRIC CO. Ltd. July 31, 1963, [July 31, 1962], No. 29412/62. Heading H2J. [Also in Division G3] The speed of D.C. motor 10 is varied by varying the excitation of generator field winding 16 associated with silicon controlled rectifiers 20, 21. Initially, a current is established through resistor 27 in a direction appropriate to the selected direction of motor rotation, a voltage being applied to control amplifier 24 through resistor 25. The input voltage of the control amplifier 24 is also influenced by current from amplifier 36 through resistor 28, due to the flow of current through resistor 38 to the input circuit of amplifier 36. The output signal of amplifier 24 causes pulse control unit 23 to advance the phase of pulses applied to rectifiers 20, 21, to energize the motor. Motor armature current passing through resistor 17 increases the input voltage of amplifier 36, so increasing the current passing through resistor 28, whereby the input voltage applied to the amplifier 24 is decreased. This reduces the input to unit 23 and retards the phase of the control pulses applied to the rectifiers, the generator field excitation being reduced to reduce the armature voltage. The output voltage of the generator falls at a rate which progressively increases with increase in current, the gain of the amplifier 36 being of low value except when the feedback current through circuit 46, 47 is restrained by an auxiliary circuit 49 comprising diodes 52, 53 having non- linear current-voltage characteristics, whereby the gain of the amplifier 36 increases at a higher rate as its input voltage increases. Movement of a controller to a higher speed notch decreases the current in resistor 38 and permits increased motor current. A heavy load may stall the motor and then reverse it, the gain of amplifier 36 remaining at a maximum to provide strong braking torque. When a lower speed-notch is engaged, the motor current is reversed for braking, the input to amplifier 36 being reduced so that generator voltage increases at a decreasing rate as the braking current increases. When the controller is in the " off " position, the amplifier 36 is dependent upon circuit 45 alone for its negative feedback, the amplifier having a high gain. To overcome the fall in sensitivity in the generator to changes in field excitation due to magnetic saturation, the amplifier 24 has a negative feedback arrangement similar to that of the amplifier 36.