baber/WOPTO huggingface dataset:
Patent GB-901711-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02D21/08
Filed: 1958-10-01
Abstract: 901,711. Re-cycling exhausts; charge pumps; regulating. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. Oct. 1, 1958 [Oct. 2, 1957], No. 31392/58. Classes 7(2) and 7(6) Re-cycling of exhaust gases via a pipe 6, from the exhaust pipe 3a to the intake pipe 2a of an engine 1 having extraneous ignition, is continuously controlled in dependency on, and in direct relationship to, the proportion of obnoxious constituents in the gases, by a valve 7 operated by a device 8 which may be responsive to the heat of the gases or to their carbon monoxide content as measured by an electrical resistance method using a Wheatstone bridge. Re-cycling is greatest at engine braking or starting and is decreased as engine speed increases. The device 8 may operate the valve 7 via a compressed air or oil servomotor or an electrical relay, and may have an indicating device associated therewith. The pipe 6 may be connected to a silencer 5 or directly to the pipe 3a, when the valve 7 may be located in the pipe 6, at its junction with the pipe 2a or 3a, or in the pipe 3a. The gases may be re-cycled in an injector-like manner, or as part of a pressure wave supercharging system. The engine has an air intake filter 4 and operates with fuel introduced, during the suction stroke and/or at the start of the compression stroke, by a carburetter 9 or by injection either together with the induced air or directly into the combustion chamber. The pipe 6 may have a wire screen spark extinguisher. Provision may be made to increase re-cycling under town driving conditions until the engine output is decreased to 30% of its maximum. There may be water injection to the pipe 6 or 2a.
Patent GB-747274-A (GB)
Title: Improvements in or relating to seed, fertilizer and like distributors
IPC: A01C7/08
Filed: 1953-11-12
Abstract: 747,274. Manure distributers. TEAGLE, W. T. Nov. 4, 1954 [Nov. 12, 1953], No. 31428/53. Class 6 (1). Relates to manure distributers of the kind comprising a hopper 6 carried on a wheeled frame 1 and provided with a basal aperture 9 which is obturated by an axially movable valve 10 to control the flow of seed therethrough. According to the invention, the hopper is supported by a vertical shaft 5 extending axially through it and rigidly secured to the frame 1 at its lower end, the valve 10 being carried by a sleeve 11 movable along the shaft. The valve forms a conical boss which is integral with the vaned-disc spreader 12 and with its driving pulley 15. The disc is driven from the landwheel axle 2 by a belt drive 16 passing over idlers 17 which are movable on the frame 1 to adjust belt-tension. The sleeve 11 carries an agitator 33 within the hopper, and its upper end is sheathed by a rubber tube 34 attached to a cap 8. The cap rests on the end of the shaft 5 and suspends the hopper 6 on brackets 7. The disc and valve are axially movable by a thrustblock 21 actuated by a lever-and-link system 25, 26, 28, 29 which moves over-centre in the fullyraised position of the valve to maintain the valve in contact with the hopper mouth. The main frame 1 runs on land-wheels 3 and comprises triangulated beams converging towards a draught-member 4 attachable to a tractor. In a modification, the hopper is provided at one side with an additional opening and adjustable gate so that material falls on to one side of the disc thereby producing a non-uniform scattering.
Patent GB-771836-A (GB)
Title: Coating textile material with thermoplastic resin or natural or synthetic rubber
IPC: D06M15/244
Filed: 1954-11-02
Abstract: 771,836. Coated fabric. GALON AKTIE. BOLAG, and LOFGREN, S. I. Nov. 2, 1954 [Nov. 11, 1953], No. 31632/54. Class 140. In the coating of an elastic sheet material, e.g. tricot, with one or more layers of a thermoplastic resin, e.g. polyvinyl chloride or rubber as a paste, the elastic sheet material is supported by a backing of a less elastic material, e.g. paper, cardboard, steel foil, woven glass fabric, or relatively non-elastic textile fabric. The backing may cover part only of the elastic sheet material. It may be attached by means of an aqueous solution of glue. It may be permanently united to the elastic sheet material or may be removed after the coating process.
Patent GB-520851-A (GB)
Title: Improvements in or relating to gas- or vapour-filled electric discharge devices
IPC: H01J17/04
Filed: 1938-11-01
Abstract: 520,851. Discharge apparatus. PATENTVERWERTUNGS GES. HERMES. Nov. 1, 1938, No. 31634. Convention date, Nov. 1, 1937. [Class 39 (i)] A gas or vapor-filled device has an intermediate electrode formed by a metallized layer on a non-metallic support, the wall of the vessel in the neighbourhood of the electrode having an external coating by means of which a voltage is supplied capacitively to the electrode. The device may be provided with a liquid or an indirectly-heated cathode 3 and intermediate electrodes formed by coatings on funnel-shaped members 5 which are beaded at their ends. The coating may be effected by silvering or by vaporization after assembly; masks prevent undesired deposits on the wall; coatings of tungsten, tantalum, molybdenum and iron may be used with mercury fillings, and copper or silver with fillings of rare gas. The funnels 5. may be fused with the tubular container, or the container may be formed by fusing together a number of funnels. Ceramic funnels may be soldered together, the joints being provided with a sintered iron coating. The internal coating 17 is formed by chemical means, extrusion or by winding metal foil on the tube retained by clips. A voltage divider 19 may consist of metal discs separated by insulating members.
Patent GB-754633-A (GB)
Title: Improvements in or relating to document filing systems
IPC: B42F15/00
Filed: 1954-11-02
Abstract: 754,633. Filing papers. DUDOUYT, J. P. Nov. 2, 1954 [Nov. 9, 1953], No. 31680/54. Class 1461(1) A document filing system comprises suspension folders 7 arranged in' rows in a cabinet 1, 2, each folder being substantially rectangular, having a bottom fold, suspension rods 6 on the outer edges and a double edge 7a defining an open end between the fold and the suspension rods, the folder 7 being arranged obliquely with their suspension rods resting on bearing elements 4a, 5a or 4b, 5b and supporting means 3 being provided for each row along the lower double edge 7a to prevent documents falling through. The supporting means 3 may be a metal lattice, spaced grating, slats, boards, sheets or similar elements. As shown in Fig. 1, metal sheets 3 have shouldered edges to form the bearing elements 4a, 5a for the lower end of the rods 6 of one row of folders and the upper end of the row below. Each sheet is supported in position either by welding, screwing or like fixing or as shown, by right-angled parts 8 carried by cleats 9, the cleats 9 being fixed or alterable in position. As shown in Fig. 3, the metal sheets 3 have lower shouldered parts and forms the bearing elements 4b, 5b, as shown. In this construction the folders 7 may conveniently be in concertina form, the folders not then being removed from the cabinet. A slide 10 for receiving labels may be connected to each sheet 3 by a rod 11.
Patent GB-428915-A (GB)
Title: Method of concentrating indiarubber latex
IPC: C08C1/10
Filed: 1934-11-06
Abstract: Latex is concentrated by mixing evaporated latex serum and latex, separating the mixture by centrifugal means into a latex cream having a high rubber content and a skimmed latex, which latter is evaporated and wholly or partly returned to the mixture to be separated. According to a modification of this process, evaporated concentrate of serum is mixed with latex cream and the mixture is centrifuged to produce a cream and a skimmed concentrated latex which is wholly or partly returned and mixed with latex, whereupon the mixture is subjected to a second centrifugal separation to produce further latex cream and further skimmed latex to be concentrated.  Ammonia and/or amines and/or anticoagulants and/or filling materials may be added to the latex or to the concentrates before the treatment.  The concentrate of rubber obtained may be evaporated to complete dryness or to a paste-like consistency capable of being again dispersed in water. The evaporation treatments may be carried out in ordinary evaporators in which stirring appliances or screw conveyers feed the latex between or over heated surfaces or through a heated cylinder or drum simultaneously with renewal of the latex surface. Preferably, evaporators in which the latex is spread by centrifugal force on the inner surface of a rotating cylinder through which hot air is passed, or spray type of evaporators are employed.  Ammonia may be added to the hot gases employed in the evaporation to maintain the hydrogen ion concentration unchanged. For the same purpose amines or similar compounds of high boiling point may be added to the latex.
Patent GB-1423416-A (GB)
Title: Heat insulating structures
IPC: E04H5/10
Filed: 1973-07-04
Abstract: 1423416 Heat insulating beams KITSONS BYALEX LTD 13 June 1974 [4 July 1973] 31880/73 Heading E1W A beam 1 comprises an elongate inverted undercut channel 2 the lips 6, 7 of which provide flanges supporting spacers 8, 9 of high compressive strength heat insulating material upon which are supported in turn channel shaped hangers 13. The hangers have one side flange 12 resting on the respective spacer 8, 9 and the other side flange 14 of which forming or being secured to a further member providing a laterally projecting flange 23, 24 at each respective side of the beam. The composite parts form a hollow which contains heat insulating material 15, 16. The channels may be formed of metal or glass fibre reinforced plastics and the insulating material 15, 16 may be prefabricated blocks or in situ formed foam. Gaps 25 ensure that no heat bridge is formed across the beam which may be used to support suspended ceiling panels of a cold storage chamber. The various components may be bonded by a vapor sealing medium during assembly. Beams may be joined end to end by fish plates engaging in slots in the ends of the beams.
Patent GB-868977-A (GB)
Title: Improved implement lifting assembly for tractors
IPC: A01B59/06
Filed: 1957-10-14
Abstract: 868,977. Tractor power-lift mechanisms. MASSEY-FERGUSON Inc. Oct. 14, 1957 [Oct. 17, 1956], No. 31964/57. Class 79(1). An implement-lifting assembly for a tractor 7 having laterally-spaced hitch linkages 32-11 which support the implement 14 comprises laterally-spaced actuating arms 26 swung up and down in unison by a power-lift, lift arms 28 connected to the hitch linkages 32-11 and pivoted at 31 on the actuating arms and means movable to lock the actuating and lift arms together to form rigid units which prevent lateral tilting of the implement relative to the tractor or to unlock them and permit relative lateral tilting. The implement is hitched on either side to each of two spaced draft links 11 and 17 and centrally at 16 to a single central link 9 adjustable at 10. The lift links 32 have adjustable devices 33. The power-lift lever 19 controls a cross shaft 21 on either end of which the actuating arms 26 are splined. Each arm 26 supports a pair of lift arms 28, one on each side.(Fig. 6), each pair of which have pins 42 passing through the front end on which is pinned a square block 41. The locking means comprises a pair of hand levers 49 pivoted to the arms 26 on either side of the tractor at 51 and each having a pin 58 moving freely in a slot 57 in the top end of parallel pairs of links 55 pivoted at the other end on the pins 42. The slot 57 provides lost motion between the lift arm 28 and the actuating arm 26 so that when the lever 49 is vertical either hitch linkage can move up and down independently of the other and of the powerlift. These movements are limited by the top of the slot 57 and a stop 42 on the underside of the arm 26 which comes up against a face of the square block 41. If the lever 49 is pivoted clockwise around pivot 51 the pin 58 is brought to the top of slot 57 so that the block 41 is clamped against the stop 47 and neither linkage can move independently of the power lift. The hole for the pin 42 is set eccentrically in the block 41 to permit adjustment of the clamped position. The links 55 have a curved part 60 which permits them to be sprung over the top dead centre position of the pin 58. when the block 41 is in contact with the stop.
Patent GB-423687-A (GB)
Title: Improvements in or relating to feed devices for portable drilling machines and the like
IPC: B23B45/12
Filed: 1933-11-16
Abstract: 423,687. Drilling. CROFTON & CO. (ENGINEERS), Ltd., C., and CROFTON, H. B., 11, Marden Road South, Whitley Bay, Northumberland. Nov. 16, 1933, No. 32027. Addition to 409,234. [Class 83 (iii)] The feed nut 7 of the feed device according to the parent Specification has a ratchet wheel 9 keyed thereto at 10, and has rotatable thereon a hand lever 8 carrying a spring pawl 11. A spring 16 is interposed between the lug 6a on the drilling-machine 6 and the end of the nut to prevent rotation of the nut in the reverse direction to the feed when the pawl is slipping over the teeth of the ratchet on the idle stroke of the lever 8. A knurled head 7a on the nut provides for hand rotation thereof when the pawl has been disengaged by a trigger 14, for feeding the drill up to the work. One face of the lever 8 abuts on the head 7a and the ratchet wheel abuts on a shoulder 7b on the nut. A casing 12 attached to the lever 8 encloses the ratchet mechanism.
Patent GB-392230-A (GB)
Title: Improvements in or relating to thermionic modulation systems
IPC: H03G7/02
Filed: 1931-11-18
Abstract: 392,230. Valve amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London, and RUST, N. M., 109, London Road, Chelmsford, Essex. Nov. 18, 1931, No. 32043. [Class 40 (v).] The low-frequency modulating current applied to a carrier transmitter is maintained approximately constant by the use of a variable Á valve despite variations in signal intensity, whereby the modulation level is maintained at a " deep " value and overloading of the transmitter when the signal intensity is high is prevented. The Figure shows an amplifying system in which signals from the microphone amplifier 1 are passed through a variable attenuator 2 and potentiometer level adjustment 4 and are applied to the push-pull variable Á valves 10, 11, the output from which is passed to the modulating system through a further variable attenuator 31. Part of the output from the microphone amplifier is passed to a full-wave rectifier 14, the rectified current traversing a condenser-resistance combination 20, 21 which provides grid bias for the valves 10, 11. As the grid bias of the valves is varied in accordance with input level, the output will be substantially constant at a level determined by the adjustments of attenuators 2, 4, 31. The systems may be applied to the prevention of fading on short waves and tends to compensate for excessive variations in the microphone input.
Patent GB-700743-A (GB)
Title: Improvements in or relating to a paper sheet and coating composition therefor and method of making the same
IPC: D21H19/62
Filed: 1949-12-14
Abstract: 700,743. Mineral-coated paper. PAPER PATENTS CO. Dec. 14, 1949 [Dec. 23, 1948], No. 32073/49. Class 96 Paper for rotogravure printing &c. is made by applying to at least one side of a paper web a coating of mineral pigment, and an adhesive comprising a mixture of carbohydrate material and a synthetic latex, drying to a moisture content of less than 10 per cent. and super-calendering. The coating may also contain a latex-stabilizing agent, a pigmentdispersing agent and an anti-dusting agent &c. It remains slightly plastic after drying. Examples mention, as constituents of coating compositions, kaolin clay, calcium carbonate, di-methylol urea, urea-formaldehyde resin, pearl starch, acid-converted starch, casein, sodium alginate, cellulose esters or ethers, sugars, gum arabic, a sodium soap, tetra sodium pyrophosphate, and hexametaphosphate. Multi-layer coatings of different compositions may be applied. Specification 545,124 is referred to.
Patent GB-744054-A (GB)
Title: Method of and apparatus for the separation of mixtures of particles into fractions according to specific gravity
IPC: B03B5/38
Filed: 1952-12-18
Abstract: 744,054. Washing granular material. STAMICARBON N.V. Dec. 18, 1952 [Dec. 21, 1951], No. 32151/52. Class 82(2). A sink-and-float apparatus 2 having an inlet 1, and an overflow and float outlet 5 at the end remote from the inlet, has a discharge passage 11 so shaped that the stratification between the heavy shale 6 and heavy coal 10 both of which sink, but at different rates whilst flowing across the apparatus, is maintained as the sinks gravitate into the riser 12 in which separation of these components is effected. An air lift 17 may be used to promote the upward current. The discharge passage 11 may be bent in its lower portion to allow the riser 12 to be accommodated behind the wash box 2. Specification 709,127 is referred to.
Patent GB-1042238-A (GB)
Title: Improvements in directly-heated cathode units for electric discharge tubes
IPC: H01J1/18
Filed: 1965-07-28
Abstract: 1,042,238. Thermionic cathode constructions. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. July 28, 1965 [July 31, 1964], No. 32255/65. Heading H1D. A directly heated cathode unit includes cathode wires wound about two spaced parallel members which are urged apart, to tension the wires, by an expansion member disposed between the two parallel members and constituted by two U-shaped parts, the limbs of which face one another and are slidably received within guide sleeves, a spring around one or more of the limbs urging the members apart. In a triode having an anode 13 and grid 10, the cathode wires 9 are secured to nickel cylinders 7 and 8, which are urged apart by the action of springs 5 and 6 mounted on the longer limbs of the nickel/iron, steel, or molybdenum U- members 1 and 2, which are welded to the cylinders 7 and 8, and the limbs of which are slidably received within the ceramic sleeves 3 and 4.
Patent GB-864922-A (GB)
Title: An apparatus for recording electrical or mechanical measurements
IPC: G01D9/12
Filed: 1957-10-16
Abstract: 864,922. Recording-apparatus. LICENTIA PATENT-VERWALTUNGS G.m.b.H. Oct. 16, 1957 [Oct. 19, 1956], No. 32328/57. Class 106 (4). Recording-apparatus is adapted to receive and to advance past a stylus 3 or a row of stationary electrodes cards 5 which have the dimensions of conventional punched cards, and is so constructed that the row of electrodes extends transversely of the advancing card or that the recording stylus moves along a straight line transversely of the advancing card and that the range of the recording movement of the stylus or the length of the row of electrodes corresponds to the length of the co-ordinate of the card transversely of the advancing direction. The card 5 moves outwards through a slot 4 at constant speed and at the end of each recording period drops into a receiver while a new card is automatically detached from a stack in the apparatus and driven forward during the next period. The measuring instrument may have a moving-coil, moving-iron or bi-metal system or be of impulse type in which a step motor causes recording in steps corresponding to the line spaces of a conventional punched card. Recording may be by pen or stylus, a metal-paper process or magnetic. The recorded curves may be represented by holes punched by hand to enable the data to be analysed in punched-card machines.
Patent GB-337949-A (GB)
Title: Improvements in grinding apparatus for piston rings and similar circular parts
IPC: B24B19/11
Filed: 1929-10-24
Abstract: 337,949. Muskegon Piston Ring Co., and Olson, G. W. Oct. 24, 1929. Rollers, spindles, tubes, and the like, treating. -Apparatus for grinding piston rings and similar circular parts, adapted also for use with an existing grinding-machine, consists of a bed 1 upon which is slidable to and from the grinding-wheel 33, by means of a toggle 5, 6 operated by a handle 13, a carriage 3 having thereon a fixed centre 8 and a centre 9 movable by rack gearing 10 operated by a handle 19. the centres support a mandrel 15 upon which the rings 30 are threaded and driven by resilient rollers 26 contacting with the work above and below the mandrel and adjustable to and from the mandrel by right and left handed screws 28 engaging brackets 4, which support the rollers. The rollers are driven, through gears 17<1>, movable with the rollers, and gears 17. The rings 30 are held in position axially by the ends of a plate 16; the toggle link 6 is connected adjustably, by a bolt 21 and nuts 22, to a plate 7 on the carriage 3, the final thickness of the work being determined by the setting of the nuts.
Patent GB-154158-A (GB)
Title: Improvements in or relating to carburettors for internal combustion engines
IPC: F02M3/08
Filed: 1920-11-18
Abstract: 154,158. Sj÷rgen, C. A. W. May 10, 1919, [Convention date]. Spray carburettors. - The fuel duct 13 is formed in one wing of the throttle valve 3 situated in front of a choke tube 11. The spindle 4 of the throttle valve is bored to receive a fixed tube 5 through which fuel passes from the float chamber 1. The tapered outlet orifice 12 from the tube 5 is controlled, in accordance with the movement of the throttle valve, by its registering more or less with the nozzle duct 13. The spindle of the throttle valve is vertical. The tube 5 is flanged at its lower end, a notch in the flange being engaged by a pin to prevent it from rotating. Below the flange is a perforated disk pressed upwardly by a spring bearing against a screwed cap.