baber/WOPTO huggingface dataset:
Patent GB-916645-A (GB)
Title: Stabilisers for polymers containing chlorine
IPC: C07D257/06
Filed: 1959-08-19
Abstract: Polymers or copolymers of chlorine-containing ethylenically unsaturated hydrocarbons are stabilized by the addition of 5-aminotetrazole, a salt thereof with an amine or an inorganic base, or a 5-acylamino-tetrazole.  Polymers specified are vinyl and vinylidene chloride homopolymers and their copolymers with one another and with vinyl acetate.  The stabilizers may be used alone or in admixture with one another and/or other stabilizers in amounts of 0,1 to 5 wt per cent.  Compounds specified in the description and examples are:-5-amino-tetrazole; its sodium, potassium, calcium, barium, zinc, stannous, stannic, cadmium and aluminium salts; and 5-benzoylamino-, acetylamino-, phenylureido-, lauroylamino-, stearoylamino- and p-chlorobenzoylamino -tetrazole.  In the examples the polymers are polyvinyl chloride, which may be plasticized with C12-14 alkyl sulphonic acid ester of a phenolcresol mixture or dioctyl phthalate; a vinyl chloride/acetate copolymer; and polyvinylidene chloride.
Patent GB-1389404-A (GB)
Title: Welding alloys
IPC: B23K35/02
Filed: 1971-06-17
Abstract: 1389404 Making welding rods; welding by fusion TELCON METALS Ltd 16 June 1972 [17 June 1971] 28394/71 Headings B3A and B3R A welding alloy in rod, wire or strip form has a core of alloy which is ductile when hot and which comprises a base metal which is copper, a secondary alloying constituent which is tin and one or more minor additives to promote the required welding characteristics, a balance of tin to obtain a desired composition of the welding alloy being applied as a surface coating on the core. The welding alloy is made by forming an alloy of copper, tin and one or more minor additives into a rod or wire by a hot working and drawing operation and then coating the surface of the rod or wire with tin. In the embodiment described the alloy comprises 0À5-8À0% tin, 0À01-0À3% phosphorus, 0À1- 1À0% silicon and the remainder being copper. The total tin content after coating may be from 1À0-15À0%. The core is cleaned by passing the core through a degreasing tank and a zinc chloride flux bath and then coated by hot dipping, electroplating or vapour deposition.
Patent GB-1007715-A (GB)
Title: Improvements in reamers
IPC: F23H3/02
Filed: 1961-08-04
Abstract: 1,007,715. Reamers. PRODUCTION ENGINEERING RESEARCH ASSOCIATION OF GREAT BRITAIN, A. I. W. MOORE, and J. H. PORTER. Aug. 3, 1962 [Aug. 4, 1961; May 23, 1962], No. 28490/61. Heading B3C. A reamer has teeth, each having a circular land 11, a secondary clearance surface 12, an axial rake face 15, an additional clearance surface 13, and a bevel lead 29. The cutting edge 14 commences at point 18, and terminates at point 30, which may be at the junction of edges 31, 15. The reamer may have straight flutes, left-hand or right-hand helical flutes, the helix angle being 10 degrees maximum, and the axial rake angle may range from 10 degrees-60 degrees. The reamer may be steam treated to prevent the work material from adhering to the lands, and may have teeth unequally spaced.
Patent GB-1533836-A (GB)
Title: Analogue-to-digital converter
IPC: H03M1/00
Filed: 1977-07-07
Abstract: 1533836 Analogue-to-digital conversion INTERNATIONAL STANDARD ELECTRIC CORP 7 July 1977 [8 July 1976] 28516/77 Heading H3H In analogue-to digital conversion, a reversible counter CP counts clock pulses up during the time a linear ramp ST rises from a reference level - VR to O to reach a number P and, during the next sweep of the ramp, counts clock pulses down from P during the time taken for the ramp to rise from -VR to the level of the analogue input signal V X  to reach a value N, and the value of V X  is derived by dividing N by P.
Patent GB-1164362-A (GB)
Title: Improvements in or relating to Chain Tensioning Devices.
Inventor: KURIM TOS
IPC: F16H7/08
Filed: 1967-06-21
Abstract: 1,164,362. Expanding pulley gear. TOS KURIM. 21 June, 1967 [4 July, 1966], No. 28529/67. Heading F2D. An automatic chain tensioner for an expanding pulley chain gearing comprises both pairs of conical pulley flanges 3 connected by levers 2 pivoted to tensioner blocks 12, 15 respectively threaded on a pair of oppositely threaded bushes 10, 16 which are themselves screwed on opposite pitch threads 13, 17 on a spindle 14, the spindle 14 being initially rotated manually by a disc 19 and locked by a screw 20 at the required chain tension after which spring-loaded levers 8, 25, fast with the bushes 10, 16, are adjusted by screw and nut connections 5, 6 such that the bushes 10, 16 are subjected to a continuously applied torque tending to tighten the chain adjuster whereby the pre-set sag of the chain 4 is automatically maintained, the chain being tensioned against spring-loaded pivoted shoearms 21, 27.
Patent GB-1014614-A (GB)
Title: Float-operated valve
IPC: F16K31/26
Filed: 1963-07-18
Abstract: 1,014,614. Valves. G. MACK and R. BACHOFER, [trading as MACK & SCHNEIDER METALLWARENFABRIK]. July 18, 1963 [July 18, 1962], No. 28541/63. Heading F2V. In a float-operated valve, e.g. for filling the flushing tanks of lavatories, the back pressure produced by restrictor means of smaller size than the valve seat passageway, between the valve seat and the outlet, acts to restrain the closure from seating during filling and thereby effects rapid closure to prevent subsequent leakage. A thermoplastic resin sleeve 15 has a passageway 17 from the inlet 10 terminating in a seat 13 obturated by a float-actuated plug or stopper 21 (Fig. 1) or a diaphragm membrane 26 (Fig. 2). The sleeve 15 is retained by a collar 16, and has a number of fins 18 dividing the annular chamber 12, surrounding the sleeve 15, into a number of chambers 20. The chambers are interconnected and connected between the passage 17 and the outlet 11 by a port 14 and circumferentially staggered ports 19 in the fins 18. The size of the ports 14, 19 and of the chambers 20 increases progressively towards the outlet 11. In the Fig. 1 embodiment the shaft 22 of the stopper 21 is freely movable within the valve closure tappet 24, to prevent back suction upon the occurrence of a vacuum.
Patent GB-658781-A (GB)
Title: A device for coupling a semi-supported agricultural machine to a tractor
IPC: A01B49/04
Filed: 1948-11-03
Abstract: 658,781. Couplings for vehicles. BUARD, P. L. E. Nov. 3, 1948, No. 28590. Convention date, June 9. [Class 103(v)] [Also in Group I] A coupling for an agricultural machine (see Group I) comprises a transversely rotatable shaft 4 connected to the tractor by links 2, 3, the shaft being centrally provided with a longitudinally extending sleeve 5, the machine being provided with a longitudinally extending bar 6 adapted to be rotatably engaged in the sleeve. As shown the bar 6 is hollow and is fixed to the machine frame 8 by sleeves 7 and lubricating means 11 are provided.
Patent GB-1149431-A (GB)
Title: Fluorophosphate glass
IPC: C03C3/247
Filed: 1967-06-21
Abstract: 1,149,431. Fluorophosphate glass. ERNST LEITZ G.m.b.H. 21 June, 1967 [25 June, 1966], No. 28614/67. Heading C1M. A fluorophosphate glass is produced by fusing a mix comprising 9 to 12 mol per cent of the metaphosphates of the elements Li, Na, K, Mg and Al; 81 to 90 mol per cent of the fluorides of the elements Mg, Ca, Sr, Ba and Al; 0À4 to 7 mol per cent of at least one of the compounds potassium arsenate, potassium fluorotitanate, potassium fluorozirconate and potassium fluorotantalate, wherein the proportion of aluminium metaphosphate amounts to at least 50% by weight of the metaphosphates; the calcium fluoride amounts to between 40 and 60% by weight and the aluminium fluoride to substantially 50% by weight of the fluorides; the balance of the mix, if any, consisting of other compatible constituents. Examples are given.
Patent GB-1400742-A (GB)
Title: Application of a substance to an elongated article
IPC: H01B13/32
Filed: 1972-06-20
Abstract: 1400742 Waterproofing electric cable WESTERN ELECTRIC CO INC 20 June 1972 [21 June 1971] 28728/72 Heading D1P [Also in Division H1] An apparatus for applying a flowable substance to an elongated article having interstices therein includes means for reducing pressure in the interstices, means for applying the flowable substance to the pressure-reduced article for entry into the interstices, means for cooling the article prior entry to the substance applying means and means for altering the consistency of the substance in the interstices subsequent to exit thereof from the applying means to render the substance non-flowable. As shown, electric cable is impregnated with a water-proofing mixture of petrolatum and polyethylene by passing it through an airsealing constrictor 38, vacuum section 48, airsealing constrictor 59, vacuum section 61, heated constrictor 62, cooling section, 82 constrictor 103, heated petrolatum/polyethylene applying section 104, constrictor 118, section 119 allowing gradual cooling of the impregnated cable, constrictor 121 and cooling section 122. The applied substance may comprise 85 to 95% petrolatum and 15 to 5% respectively polyethylene, the constituents being heated to substantially 265F prior to mixing.
Patent GB-1374461-A (GB)
Title: Split moulds and carriers therefor
IPC: B22C9/06
Filed: 1971-06-18
Abstract: 1374461 Mould carriers PRECISION ENG (WORCESTER) Ltd 24 April 1972 [18 June 1971] 28833/71 Heading B5A Mould parts 2, 3 are carried on plates 1, 4, respectively, the plates being pivotally linked by pairs of rollers 21, 22 extending laterally from the opposite sides of a block 14 and received in slots 18 of cheeks 17. The slots may be arcuate and such that when the plate 4 is fully raised the uppermost rollers drop into sharply curved parts of the slots and retain the plate in its raised position against a spring- loaded plunger 24. Side elements 5, 6 of the mould slide on the plate 1 and are held by wedge blocks 13, 14 against the mould parts 2, 3 when the mould is closed. A spring catch 15 engages an aperture in the block 13 to hold the assembly closed.
Patent GB-722030-A (GB)
Title: Improvements in generating involute or modified involute surfaces
Inventor: CLEFF PETER HERBERT
IPC: B23F5/06
Filed: 1951-12-10
Abstract: 722,030. Grinding. MAXWELL, D. C., and PARSONS & MARINE ENGINEERING TURBINE RESEARCH & DEVELOPMENT ASSOCIATION. Dec. 4, 1952 [Dec. 10, 1951]. No. 28843/51. Class 60. [Also in Group XXII]. A head for a grinding machine comprises a grinding wheel 16 carried on a spindle 21 axially movable in a carriage 8 angularly movable about an axis 0' which is perpendicular to the wheel axis and is spaced therefrom by the radius of the wheel 16, and a computing mechanism 37-39 for correlating the axial and angular movements so that the envelope of successive positions of the wheel is at least a high order approximation to an involute. The spindle is mounted in a carrier 14 which, in turn, is mounted on a slide 9 adjustable angularly according to the helix angle of the gear to be ground. A wear detector and compensator 15 is also mounted on the carrier 14, and adjusts the position of a sleeve 21 relatively to the carrier 14. The wheel is rotated by a motor 22. A control shaft 24 is mounted in eccentric bearings, adjustable for tooth modification, and carries a lever 27 adjustable in length. The lever is connected by a pin-and-shoe mechanism 28, 34 and 36 to the carrier 14. The movement of the lever 27 is controlled by a lever 39 carrying a follower 38 engaging a master cam 37, which may be produced by mechanism such as described in Specification 722,011, [Group XXII]. The linkage may be replaced by steel tape mechanism. The cam 37 may be replaced by the generating mechanism of Specifications 691,734, [Group XXII], or 713,524, [Group XXIV].
Patent GB-225365-A (GB)
Title: Improvements in or relating to lamps
IPC: B60Q1/14
Filed: 1923-11-16
Abstract: 225,365. Davis, A. L. Nov. 16, 1923. Vehicle and like lamps; mounting electric lamps in lanterns.- In a light projector suitable for use in surveying from aircraft, a reflector is adjustably mounted so that it can be moved along its optical axis to vary the divergence of the beam and tilted so as to vary the direction of the beam, and the lamp bulb 1 is independently ad. justable. The projector is partly countersunk into the under surface 3 of the aircraft so as tc minimize head resistance and comprises a casing 2 having a hinged dome-shaped glazed door 4 and containing its axis of rotation 14 at the centre of of the lamp filament. The lamp bulb 1 is mounted with its longitudinal axis at right angles to both the optical axis and the axis of rotatior of the reflector and its holder extends through two outer rings 7, 8 having a base piece 9 bear ing on a boss 12 on the casing, the rings 7, 8 being separated by an intermediate ring 10 mounted on a radial bolt 11 slidably mounted ir the boss 12. By this means the bulb may be rotated about and moved along its longitudinal axis and swung about the axis of the bolt 11.
Patent GB-767774-A (GB)
Title: "improvements in or relating to a process and an apparatus for the manufacture of yoghourt"
Inventor: MAILOFF LAZARE
IPC: A23C9/12
Filed: 1954-10-07
Abstract: 767,774. Incubators. MAILOFF, L. Oct. 7, 1954 [Oct. 7, 1953], No. 28978/54. Class 5(2). [Also in Group VI] An incubator for preparing yoghourt comprises a heat insulating container serving to receive the yoghourt glasses to be subjected to the incubation process, the said container comprising a heat insulating cover arrangement having a central portion which is heat insulating but which permits the passage of moisture. As shown, the incubator is movable and consists of a double-walled heat insulated container 1 having inner and outer covers 2 and 3, the central portions of which have a frame 19 adapted to hold felt plates or metal or plastic screens 8, which may be inserted in honeycomb formation and are permeable to moisture while remaining heat-insulating. When closed the covers rest on the stepped portions 9 and 10 in the rim of the body of the incubator. A base plate 5 for holding the yoghourt bottles 16 is provided with holes 6 through which hot air or cooling water may pass. The hot air unit 7 is movable and comprises a fan 12 and heating coil 13. It is connected to the incubator by means of pipes 7a and 4a which lead to the supply conduit 4 beneath the perforated plate 5. Cooling water may be introduced through the pipe 15 and the water level within the incubator is regulated by means of an overflow 17.
Patent GB-1076592-A (GB)
Title: Multiple motor drive for rolling mills
IPC: B21B35/12
Filed: 1964-07-14
Abstract: 1,076,592. Rolling. DEMAG A.G. July 14, 1964 [July 15, 1963], No. 28992/64. Heading B3M. [Also in Division B5] A drive assembly for a rolling mill, having rolls 1, 1<SP>1</SP> lying one above the other, comprises two motors situated side by side and driving the rolls through flexible couplings on obliquely mounted shafts 3, 3<SP>1</SP>. Gears 2, 2<SP>1</SP> may mesh with each other to provide synchronous driving of the rolls, or meshing gears 8, 8<SP>1</SP> may be incorporated. In another embodiment, Fig. 4b (not shown), the drive between the motors (6), (6<SP>1</SP>) and rolls (1), (1<SP>1</SP>) is by means of shafts (3), (3<SP>1</SP>), split by meshing gears (8), (81). For driving the rolls at different speeds the motors may run at different speeds or the gear ratios in the two drives may differ. The mill is suitable for rolling steel, rubber, or plastics.
Patent GB-697437-A (GB)
Title: Improvements in electrostatic dust precipitators
IPC: B03C3/66
Filed: 1951-12-11
Abstract: 697,437. Supply systems for electrostatic precipitators. COLLECTRON (PTY), Ltd. Dec. 11, 1951 [Dec. 21, 1950], No. 29017/51. Drawings to Specification. Class 38 (iv). A high voltage supply for an electrostatic dust precipitator is obtained by rectifying a high-frequency voltage, say of above 10 kilocycles per second, generated by thermionic valve oscillator which may be powered by batteries or by rectified mains alternating current. The oscillator may be of the " ringing choke " type, or of the feed-back type producing a continuous wave. In one arrangement a pair of valves excite, in push-pull, an oscillator circuit, the output voltage of which is stepped up by a transformer and applied to a voltagedoubling rectifier circuit feeding the plates of the precipitator. Some of precipitator plates may be supplied from an intermediate voltage point of the rectifier. A relay, responsive to current or voltage conditions of the valves, controls indicator lamps for showing the operating conditions obtaining and also inserts a current limiting resistor in the valve circuit under fault conditions. The screens and anodes of the valves may be supplied from separate sources, which may be provided with means for voltage stabilization.
Patent GB-1150411-A (GB)
Title: Perforate Thermoplastic Material and Apparatus and Method for the Manufacture thereof
IPC: B29C48/08
Filed: 1966-06-28
Abstract: 1,150,411. Artificial films. NATIONAL DISTILLERS & CHEMICAL CORP. 28 June, 1966 [12 July, 1965], No. 29026/66. Heading B5B. A perforate tubular or flat thermoplastic web is formed by injecting spaced parallel air channels into the body of the web as it is extruded through an elongated exit orifice. A die incorporates a plurality of spaced air injection grooves, core pins, or channels 20-28 supported from a common central mandrel 29 adjacent exit orifice 13, and produces a film shown in cross-section with channels 70. In a modification a die for extruding a three-ply film has three thermoplastic material extruders 74, 10 and 75 supplying channels 70, 60 and 73 respectively. Channels 70 and 73 communicate with annular rings 71 and 72 respectively, and the composite stream moves past the ring of core pins 40 and 63 to exit orifice 13. The core pins are staggered alternately radially inwards and outwards so as to form channels between central film 82 and outer film 80 and inner film 81 alternately.
Patent GB-337147-A (GB)
Title: A new or improved device for shuffling playing cards
IPC: A63F1/12
Filed: 1929-09-26
Abstract: 337,147. Wendorff, G. Sept. 26, 1929. Cards, shuffling.- Apparatus for shuffling playing cards comprises a receptacle 4 oscillated in a vertical direction by means of a bell crank lever 10 the arm 14 of which has at its end a roller 13 engaging a cam 11 secured on the shaft 12 which is intermittently driven through the main shaft 21, eccentric pin 23 on wheel 22, arms 18 and 20 connected by pin 19, pawl 17 and ratchet 16 secured to shaft 12. The plate 25 on which the cards are placed is oscillated through the levers 28, 27, arm 32 engaging rollers 30<1> on an arm 30 on a shaft 31 rotated from the main shaft 21 through gears 58, 59, Fig. 2, shaft 60 and gears 61, 62. Cards are removed from the plate 25 and conveyed to the rollers 35, 36, rotated by gears 22, 63, for delivery to the receptacle 14 by suction heads 33 oscillated through the lever system 56, 54 oscillating on shaft 55, 57, and 21<1> rotated by main shaft 21. The cards are removed from suction heads 33 by needles 37. The receptacle 4 has four pairs of slots which are each positioned in turn opposite the rollers 35, 36 according to the position of the cam 11, and into the slots enter blades 41 normally positioned therein by spring 42 for reception of the cards and which can be retracted to cause the cards to fall down in the shuffled state by pressing the button 48 which rotates the bell crank lever 47 and causes a pin 51 thereon to engage the spindle 50 and rotate blades 41. The main shaft 21 can be actuated manually or by an electromotor.
Patent GB-355084-A (GB)
Title: Improvements in electricity meters with differential driving gear
IPC: G01R11/56
Filed: 1930-09-30
Abstract: 355,084. Supply meters ; counting- apparatus. LANDIS ET G Y R, SOC. ANON., 1, Hofstrasse, Zug, Switzerland. Sept. 30, 1930, No. 29185. Convention date, Oct. 9, 1929. [Class 37.] Excess supply meters provided with differential gear have one sun wheel coupled to the constant speed gear train, the other sun wheel being coupled to an overhauling clutch mechanism actuated by the meter and gear train so that the differential planet wheel rotates in one direction only and any lost motion in the gear is thereby obviated. In one construction, as shown in the Figure, the counter 13 is driven by planet wheel 11 from sun wheels 2, 7. A constant speed motor 6 drives directly on to sun wheel 2 and through clutch 17 on to sun wheel 7. The meter 21 drives through clutch 16 on to sun wheel 7 when excess supply is taken, the clutch 17 slipping. Similarly, when the meter is not taking excess consumption, the clutch 16 slips and the planet 11 remains stationary under the drive of the motor 6. In a modification, ball or roller friction clutches replace the toothed clutches 16,17.
Patent GB-1128393-A (GB)
Title: Concentrically disposed adsorption apparatus for continuous operation
Inventor: NEMETH JENO
IPC: B01D53/12
Filed: 1966-06-29
Abstract: 1,128,393. Separating gases and vapours. CHEMOKOMPLEX VEGYIPARI GEP ES BERENDEZES EXPORT-IMPORT VALLALAT. 29 June, 1966, No. 29279/66. Heading B1L. Gas to be treated, e.g. air laden with gasoline or benzene vapour, enters adsorption chamber 1 at inlets 5. Adsorbent, e.g. active carbon, is supported by grid 6 and is partially fluidized by the gas, which afterwards leaves by pipe 20. Spent adsorbent is conveyed to regeneration chamber 4 by pipes 7 and 9 and is there entrained by a blast of steam which enters through nozzle 10. Flow of adsorbent in pipe 7 (inclined at the angle of repose of the adsorbent) is controlled by metering device 8. Steam and desorbed vapours (which are subsequently condensed) leave chamber 4 at 13 while the adsorbent passes through 14 to chamber 3. Air enters chamber 3 via inlet 16 and grid 15 (inclined at the angle of repose of the adsorbent), and leaves via openings 17 in outlet 21 (through which the air may be discharged). The dry adsorbent then passes to chamber 2 where it is cooled by air which leaves by openings 19 or by duct 20 in chamher 1, while the regenerated dry cool adsorbent passes to chamber 1 through opening 22. instead of the metering device 8, devices controlled by a screw element (23) (Fig. 3, not shown), or by an air inlet (24) (Fig. 4, not shown) may be used, or alternatively a pipe (25) may be used which is inclined at less than the angle of repose of the adsorbent and having therein a vibrator (27) (Fig. 5, not shown) or a screw feeder (28) (Fig. 6, not shown). If desired, such a screw (29) (Fig. 7, not shown) may be vertically positioned in the entrance to the pipe (25).
Patent GB-1369747-A (GB)
Title: Platform assembly including a guard rail assembly
IPC: E04G5/16
Filed: 1972-06-22
Abstract: 1369747 Scaffold platform and guard-rails BAKER-ROOS INC 22 June 1972 29403/72 Heading E1S For use in scaffolding which comprises a pair of ladder-like upright frames 10 interconnected by horizontal strut frames 15, a platform assembly comprises a platform 20 supported on a pair of interconnected longitudinal struts, each of channel section with the web 22 vertical and the flanges 23, 24 directed outwardly and having further upwardly directed flanges 25, 26 at their edges, sockets 40 secured to plates 30 which are engaged in the channels of the struts and fastened to the webs 22, posts 45 received in the sockets 40, and guard-rails 48 interconnecting the posts 45. The struts have vertical mounts 17 at their ends which embrace the scaffold uprights 12 and are securable at a selected height by means 18 engaging holes in the uprights 12.
Patent GB-861704-A (GB)
Title: Improvements in electric arc welding equipment
Inventor: DANKS JOHN
IPC: B23K9/18
Filed: 1956-09-26
Abstract: 861,704. Welding by fusion. LINCOLN ELECTRIC CO. Ltd. Dec. 23, 1957 [Sept. 26, 1956], No. 29415/56. Class 83 (4). A device attached to an arc welding head directs a narrow light beam on to the welding line in front of the welding zone to facilitate guiding of the welding head.. A tube 10 containing a lamp 11, an apertured diaphragm 13 and a lens 12 directs an arrow-shaped light beam 9 on to a welding seam. The tube 10 is attached to the flux nozzle 3 of a submerged arc welding head 2.