baber/WOPTO huggingface dataset:
Patent GB-395074-A (GB)
Title: Improvements in the manufacture and production of alphaaminocarboxylic acids, iminodicarboxylic acids and their salts
Filed: 1932-02-26
Abstract: In the manufacture of a -aminocarboxylic acids, iminodicarboxylic acids and salts thereof by condensation of an aliphatic aldehyde with ammonium cyanide and saponification of the resulting a -aminocarboxylic acid nitrile, the condensation is carried out in the presence of a quantity of free ammonia corresponding at least to that present in the combined state in the ammonium cyanide.  The nitriles are saponified, preferably directly after their preparation and without previously removing the ammonia, by means of an alkali or alkaline earth metal hydroxide, strong bases such as alkali metal, barium or strontium hydroxides being employed advantageously while heating as rapidly as possible in order to obtain a -aminocarboxylic acids, and weaker bases such as calcium hydroxide to produce p iminodicarboxylic acids.  The ammonium cyanide may be dissolved or suspended in any solvents capable of dissolving ammonia, e.g. water, alcohols, ethers, pyridine or mixtures thereof.  The condensation should be effected below 50 DEG  C., preferably at about -5 DEG  to 25 DEG  C., and the saponification at about 85-125 DEG  C., or at higher temperatures, e.g. up to 150 DEG  C. if the reaction is carried out while avoiding evaporation by working in a closed vessel and if desired introducing inert gases to increase the pressure.  The salts obtained by the saponification may be converted by known methods into other salts or into the free acids, e.g. the barium salts may be treated with sodium sulphate or sulphuric acid to produce the sodium salt or the acid respectively.  In examples: (1) acetaldehyde is treated with ammonium cyanide and ammonia with cooling, producing a -aminopropionitrile, which is saponified with caustic soda to yield the sodium salt of a -aminopropionic acid; (2) a -aminopropionitrile is saponified with barium hydroxide yielding the barium salt of a -aminopropionic acid, which is converted into the sodium salt or the free acid by the action of sodium sulphate or sulphuric acid respectively; (3) a -aminopropionitrile is saponified with calcium hydroxide yielding the calcium salt of iminodipropionic acid, from which the free acid may be liberated by treatment with sulphuric acid; (4) formaldehyde is condensed with ammonium cyanide and ammonia to produce aminoacetonitrile, which is saponified with calcium hydroxide to yield the calcium salt of iminodiacetic acid; (5) aminoacetonitrile is saponified with barium hydroxide, producing the barium salt of aminoacetic acid; (6) a -aminopropionitrile is saponified with potassium hydroxide to produce the potassium salt of a -aminopropionic acid, and (7) with strontium hydroxide to produce the strontium salt, which may be treated with sulphuric acid or a soluble sulphate, e.g. sodium or ammonium sulphate, to produce the free acid or the corresponding salt.
Patent GB-965064-A (GB)
Title: Setting gear for television and broadcast apparatus
IPC: H03J1/14
Filed: 1963-02-13
Abstract: 965,064. Variable speed gearing. P. KUHBIER, P. KUHBIER. and D. KUHBIER, [trading as PAUL KUHBIER & CO.]. Feb. 13, 1963, No. 5821/63. Heading F2D. In a coarse and fine set tuner, for T.V. or V.H.F. radio, of the kind wherein fine set is through a first-stage reduction gear 17, 25, 24, 22, rendered effective by turning a single dial 2 reversely through a limited angle permitted by a first lost-motion coupling 18, 21, a single indicating scale 15, visible through a fixed window 6 is driven with the tuner during coarse set, through reduction gear 9, 10, 11, 14, and, by means of a second lost-motion coupling 5, 8, is freed from the dial and remains stationary during fine set. Drive from the dial spindle 1 to the tuner spindle 20 is through a two-stage countershaft reduction gear comprising an input wheel 17, fast on the dial spindle, an output wheel 22, fast with a freely mounted input wheel 19<SP>1</SP> of the second stage, and stepped countershaft wheels 24, 25 connected by a slip coupling which slips when the first lost motion coupling, comprising a plate 18 on the input wheel 17 and a pin 21 on the wheel 22, is taken up to by-pass the first stage gear 17, 22 for coarse set. The second stage, which is at all times effective, comprises a stepped countershaft wheel 26 meshing the wheel 19<SP>1</SP> and a wheel 22<SP>1</SP> fast on the output tuner shaft 20. The drive to the scale plate 15 comprises stepped countershaft wheels 11, 10, meshing respectively internal teeth 14 in the scale plate and a freely mounted wheel 9 fast with a freely mounted plate 4 having a slot 5 engaged by a pin 8 on the dial 2 to form the second lostmotion coupling. The arrangement is such that, whilst the first lost motion coupling 21, 18 is transmitting directly for coarse set, the second lost-motion coupling 5, 8 also drives the scale-plate 15, whilst when the first motion coupling 18, 21 idles for fine set, the second lost motion coupling 5, 8 also idles leaving the scale plate 15 stationary.
Patent GB-682304-A (GB)
Title: Improvements in or relating to machines for manufacturing artificial stone
IPC: B28B5/02
Filed: 1949-05-04
Abstract: 682,304. Moulding roofing tiles &c. ABRAHAM, Ltd., R., and ABRAHAM, R. A. April 25, 1950 [May 4, 1949], No. 5936/49. Class 87 (ii). [Also in Group XXX] Moulds charged with artificial stone are moved continuously end-to-end underneath a compressing mechanism consisting of a freely running endless belt of rubber or the like within which the pressure applying means is located. The belt 39, Fig. 3, under which the moulds are fed on a conveyor 29, passes around rollers 40, some of which are mounted in a frame 31. This frame is resiliently mounted in a further frame 33 which is continuously reciprocated by a mechanism 34, 35. In order, at the beginning of operations, to introduce the first mould of a train under the compressor, the frame 31, Fig. 4, is temporarily raised with respect to the upper frame 33 by means of arms 43, mounted on shafts 44 in the upper frame 33 and connected by a linkage 46, 47. The arms are actuated by means of a lever 44a and bear against members 43a on the lower frame 31. The moulds 11, Fig. 2, which are of the type having a loose pallet, are fed to the conveyor 29 by means of a feeding mechanism comprising a number of mould-propelling fingers 17 each pivoted at 18a to endless chain 18. The fingers are provided with rollers 21, 22 which run along upper and lower tracks 24, 26 and up or down ramps 23, 25. The ramp 23 is hinged at 27 to allow the passage of fingers travelling in a reverse direction. The moulds are filled with concrete and finishing material from hoppers 12, 13 which have rollers 12a, 13a arranged to operate in the manner described in Specification 462,019. After passing under the compressor, the moulds are emptied and returned upon a lower belt 48 onto or from which they are raised or lowered at either end of the machine by hinged frames (not shown), of the type described in Specification 460,278. Simultaneous raising of one frame and lowering of'the other is effected by a crank 51, Fig. 6, connected to the frames by rods or chains 53. The crank is moved in steps of 180 degrees by means of a pulley 57 to which it is connected by a belt 55. The pulley 57 is mounted in a frame 58 hinged at 59 in such a manner that, by operation of a mechanism 62, 66, 66a, it can be moved clear of a brake 61 and brought into contact with a continuously running pulley 65. Shaft 54, carrying the crank 51, also carries a cam 64 which co-operates with a roller 63 on the lever 62 in such a manner that, after the shaft 54 has made half a revolution, the roller 63 drops into one of the recesses of the cam 64 and the pulley 57 disengages the driving wheel 65.
Patent GB-891850-A (GB)
Title: Process for the polymerisation of vinyl compounds
IPC: C08F2/20
Filed: 1960-02-19
Abstract: Vinyl monomers are polymerized in aqueous medium with a water soluble salt of a copolymer of a semi-ester of maleic acid anhydride with indene, as dispersing agent.  The salt may be a sodium, potassium, ammonium or magnesium salt and monomers specified are styrene, vinyl acetate and vinyl chloride.  In examples the cetyl semi-ester is used, pH is adjusted with ammonia, and benzoyl and dilauroyl peroxides and ammonium and potassium persulphates are used as catalysts.  Granulated polymers may be obtained and may be precipitated from the aqueous media used, by the addition of electrolytes such as sodium chloride.
Patent GB-472379-A (GB)
Title: Improvements in or relating to vises
IPC: B25B1/24
Filed: 1937-03-01
Abstract: 472,379. Separating riveted joints. PARFITT, A. W. (Massey-Harris Co., Ltd.) March 1, 1937, No. 6037. [Class 83 (iv)] [Also in Group XXIII] A vice comprising a fixed base 1, fixed jaw 2, and movable jaw 3 has the base 1 provided with a transverse slot 9 adapted to receive the knife bar 10 of a mowing machine and the movable jaw slide 3<1> fitted with a plate 6 cut away at 6<1> to provide an overhanging lip 7 such that by actuating the vice screw 4 pressure is exerted by the plate 6 on a knife section 11, so as to shear the rivets 12 connecting the knife section to the cutter bar. The slide 3<1> has also a raised part 13 recessed at 16 to receive a machine part such as a mower knife guard 17, and apertured at 15 enabling rivet 18 to be punched out and the part 13 may have a lateral extension 19 serving as an anvil for riveting purposes. In the modification shown in Fig. 5, the movable jaw slide 3<1> has an additional plate 20 with flanges 21 extending under the knife bar 10 to prevent its tilting.
Patent GB-102569-A (GB)
Title: Improvements in Appliances for Playing a Table Game.
Inventor: HERBERT GEORGE
IPC: A63F7/22
Filed: 1916-04-29
Abstract: 102,569. Herbert, G. April 29, 1916. Table games.-An appliance for playing a table game with balls comprises two curved or bowshaped pieces a with resilient qr cushioning means f, a bridge portion c, and two bases e. A ball is played, preferably by a T-shaped rest, by one player against one of the surfaces a, from which it rebounds and, passing under the bridge c, strikes the other surface a, whence it is caught on the rebound and returned by the second player. The two curved pieces a of wood &c. are preferably made in two parts hinged together at b and secured in the open position, when in use, by a locking-pin k. The bridge c, which is divided centrally at d to form a bridge for each player, is arranged transversely to the bases e and is detachably secured to the ends of the pieces a. The cushioning-means preferably consists of cords f connected at intervals to the pieces a by tabs h of tape, the tension being adjustable by means of rotatable pegs g. Two pieces of tape &c. secured to the pieces a form the bases e for the players. Angular playing-surfaces a may be used instead of curved surfaces. In a modification, the bridge is arranged substantially parallel to, and midway between, the bases e.
Patent GB-1512602-A (GB)
Title: Moulding composition comprising a thermo-plastic aromatic polycarbonate and a mould release agent
IPC: C08K5/43
Filed: 1976-02-17
Abstract: 1512602 Polcarbonate moulding compositions BAYER AG 17 Feb 1976 [18 Feb 1975] 6161/76 Heading C3R A moulding composition comprises a polycarbonate and, as mould release agent, a perfluoroalkane sulphonic acid amide or a cyclic iminium salt of a perfluoroalkane sulphonic acid. The mould release agent is preferably present in an amount of from 0À001 to 1% by weight, based on the polycarbonate. The Examples describe compositions comprising a polycarbonate derived from bisphenol A, optionally with glass fibres of specified dimensions, and N-methyl-perfluorooctanesulphonamide or N - methyl - pyridinium perfluorobutane sulphonate.
Patent GB-727935-A (GB)
Title: Polarisation of barium titanate
IPC: H01L41/257
Filed: 1953-03-06
Abstract: 727,935. Piezo-electric crystals. ERIE RESISTOR CORPORATION. March 6, 1953 [March 14, 1952], No. 6244/53. Drawings to Specification. Class 40 (8). Remanent polarization is produced in an electroded barium titanate ceramic body by heating the body to above the Curie point and applying a polarizing voltage of about 10 volts per mil. whilst the body cools to below the Curie point. It is stated in the Specification that maximum remanent polarization is obtained using voltages of this order and that, for the above-described hot-polarization method the higher voltages (about 30 volts per mil.) used in the prior art result in a less degree of remanent polarization. According to the invention the ceramic body may be heated to 145 C. and cooled in air to 60 C. whilst the polarizing voltage is applied. The time required for cooling is approximately 15 minutes.
Patent GB-1029147-A (GB)
Title: Vapor lamp units
IPC: H01J61/52
Filed: 1964-02-14
Abstract: 1,029,147. Fluorescent lighting fittings. TISHMAN RESEARCH CORPORATION. Feb. 14, 1964 [Feb. 15, 1963], No. 6255/64. Heading F4R. [Also in Division H1] A lamp unit comprises a tubular vapour lamp 1 having an elongated glass tube 2 and a base member 3, 4 at each end, an annular resilient support member 13, 14 frictionally fitted over each end of the lamp and having an axial length sufficient to frictionally contact both a portion of base members 3, 4 and a portion of the end of glass tube 2 so as to reinforce the joint between tube 2 and base members 3, 4. Members 13, 14 support a transparent tubular shield 11 providing an insulating dead air space 12 between tube 2 and shield 11 so as to minimize the dissipation of heat from the tube and increase the illuminating efficiency of the lamp at low temperatures. Support members 13, 14 may be of polyvinyl chloride, rubber or asbestos. Shield 11 may be of acrylic plastics or styrene plastics.
Patent GB-787432-A (GB)
Title: Improvements in or connected with mechanical brake systems of winding engines, single and multi-rope friction winders, haulages and other rotating machines
Inventor: CROMPTON ARTHUR
IPC: B66D5/26
Filed: 1955-03-03
Abstract: 787,432. Winding drum brakes. ROBEY & CO., Ltd., and CROMPTON, A. May 30, 1956 [March 3, 1955], No. 6270/55. Class 103 (1). In a mechanical brake system for winding engines wherein separate brake levers of two pairs of brakes are connected to the movable members 5, 5a of two double-acting pressureoperated device 4, one side of the piston 5 of the movable member being connected directly to an accumulator 14 supplied by a main pressure medium supply pipe and the other side through a control valve 8 also to the main pressure medium supply, the accumulator is so arranged as to perform the dual purpose of providing constant pressure medium supply for the normal operation of the brakes, and also the necessary braking force for the emergency operation of the two pairs of brakes in the event of failure of the pressure medium supply to both brake engines. Specifications 540,921 and 633,129 are referred to.
Patent GB-959614-A (GB)
Title: Actuating means for fluid flow control valves
Inventor: NEIDER KURT BRUNO BREDTSCH
IPC: F16K31/53
Filed: 1962-02-19
Abstract: 959,614. Valves. CRANE CO. Feb. 19, 1962, No. 6347/62. Heading F2V. A valve actuating-mechanism consisting of a reduction gear unit 1 with a hand wheel 3 has a rotatable drive sleeve 5 with a clutch portion 7 engageable with a cooperating part of an adaptor 11, non-rotatably mounted upon a polygonal portion 10a of a yoke sleeve 12 journalled within the hub 13 of the valve yoke and which accommodates the threaded part of the valve stem 4. The sleeve 12, which is mounted on thrust bearings 17, 18, is drawn on to the latter by a nut 19. The unit 1 is mounted on the hub 13 by a flanged housing 22 embodying bosses 25 that receive assembly bolts 26 from a stiffened and apertured plate 27 bearing against the inner surface of the hub 13 and located between the yoke arms 33, which incorporate pads whereby the assembly is secured to a valve bonnet. This assembly is positioned after a hand wheel mounted on the portion 10a has been removed, whereby the gear drive replaces the direct drive. Specification 821,952 is referred to.
Patent GB-653063-A (GB)
Title: Copper base alloy
IPC: C22C9/04
Filed: 1948-02-29
Abstract: A copper base alloy comprises 85-90 per cent copper; 0.5-1.25 per cent nickel; 0.06-0.3 per cent phosphorus, the ratio of phosphorus to nickel being not higher than 1 : 3 at least 7 per cent zinc, the total of zinc and copper being at least 96 per cent; tellurium, selenium and/or lead in such quanttities that lead alone is present in an amount of 0.75-2.5 per cent or tellurium and/or selenium (without lead) are present in an amount of 0.2-0.75 per cent in total or lead with tellurium and/or selenium is present in an amount of 0.2-2.5 per cent.  The alloy may be heat-treated by quenching from 1200 DEG -1600 DEG F. followed by precipitation hardening at 700 DEG -1000 DEG F.  The alloy may contain up to 0.1 per cent of bismuth, up to 0.2 per cent of aluminium and up to 0.1 per cent of silicon.
Patent GB-924193-A (GB)
Title: Remote control means for vehicles
IPC: B62D49/06
Filed: 1961-02-22
Abstract: 924,193. Controlling motor vehicles. C. D. SHAW. Feb. 14. 1962 [Feb. 22, 1961], No. 6438/61. Class 79(5) In a device for automatically controlling a driverless tractor 3 the track rod 6 of the driverless tractor carries a pin 5 engaging a slot 4 in a channel section beam 1 which is pivoted at 7 on the tractor's front axle 2 and engages telescopically with a bar 9 connected to a implement 11 drawn by a driven tractor 10. An hydraulic damper 12 interconnects the beam 1 and the bar 9. Angular movement of the beam 1 about the pivot 7 steers the driverless tractor 3 and relative longitudinal movement between the beam 1 and the bar 9 actuates the clutch mechanism and the throttle mechanism of the driverless tractor through Bowden cables 13, 14. The Bowden cable 13 has an inner cable 15 secured to a strap 8 on the beam 1 and an outer sheath secured to a bridge member 17 which is slidable on the beam 1 and is engaged by a stop 18 on the bar 9. The Bowden cable 14 has an outer sheath secured to the strap 8 and an inner cable 16 secured to the bar 9. The driverless tractor 3 may include a relay controlled by a switch on the tractor 10 so that in the event of the tractors becoming separated the circuit is broken and the relay is de-energized whereby the engine of the tractor 3 is cut off.
Patent GB-234568-A (GB)
Title: Improvements in transporting or conveying apparatus
IPC: B65G23/00
Filed: 1924-03-13
Abstract: 234,568. Atkinson, J. S., and Stern & Atkinson, Ltd. March 13, 1924. Endless belts advanced intermittently by reciprocating bars; ratchet and like step-by-step conveyers.-Conveying-apparatus comprises an endless conveyer, a carrier around which the conveyer passes and on which the upper run rests when the conveyer is stationary, and means for lifting the conveyer off the carrier, moving it longitudinally, and then lowering it on the carrier. The conveyer comprises a series of plates, pans, &c. hinged together and is described as applied to conveying articles through a leer. The floor is divided longitudinally into sections 1 between which are arranged beams 2, Fig. 3, supported by rollers 4 mounted on the crank portions of cranked shafts 3. An arm 5 at each end of a shaft 3 is connected to a rod 6, the length of which can be adjusted. The conveyer 7 passes round rollers 8 and when out of action rests on the sections 1. Inverted U-shaped brackets 49 on the underside of the beams 2 are engaged by rollers on the upper end of arms 47 mounted on a shaft 46. A block 43 mounted on a threaded rod 44 attached to the shaft 46 is connected by a link to an arm 41 mounted on a shaft 39. Another arm 40 on the shaft 39 supports a weight 42, and a third arm 38 is forked at the end to engage the rod of an hydraulic ram 17. The rod of a similar ram 18 engages an arm 50 secured to one of the shafts 3. Pressure fluid is next admitted to the ram 17 and the beams 2 are moved longitudinally, taking the conveyer with them. The ram 18 is now connected to exhaust, the beams descend and the conveyer again rests on the carriers. Then the ram 17 is connected to exhaust and the weight 42 pulls down the arm 40 thereby forcing in the rod of the ram 17 and also returning the beams to their initial position. The valves controlling the supply of fluid to the rams are actuated by mechanism which is driven by the shaft of the pump supplying the fluid. In a modification, the beams are connected with a cam by which they are moved longitudinally first in one direction and then in the other. The beams are raised by a weight, and when the weight is rendered inoperative, return to their lowered position by gravity.
Patent GB-541301-A (GB)
Title: Improvements in or relating to electrical time delay means
IPC: H01J31/04
Filed: 1940-04-12
Abstract: 541,301. Cathode-ray tubes. FREEMAN, G. S. P. April 12, 1940, No. 6609. [Class 39 (i)] In order to retard the passage of the ray through the tube it is caused by reflecting electrodes to pass to and fro in the space between two deflecting electrodes, in which space there is also a magnetic field, so that it takes a zig-zag path through the space. Fig. I shows the ray from a gun 1 passing through the space between the deflecting electrodes 2, 3 under the influence of a magnetic field H and reflecting electrodes 4, 5. It finally inpinges on an anode 6 connected to the grid of a valve 7. Several such devices may be combined to mix similar signals from different sources. The deflection in the initial and final portion of the track may be made greater than in the remainder, either by auxiliary electrodes or by special shaping of the electrodes 23. Specifications 536,417, 538,054 and 542,219 are referred to.
Patent GB-559454-A (GB)
Title: Improvements in or relating to the manufacture of sliding clasp fasteners
IPC: B21D53/52
Filed: 1942-05-15
Abstract: 559,454. Sliding-clasp fasteners. ZIPP FASTENER, CO., Ltd., and FRœGEL, H. R. May 15, 1942, No. 6626. [Class 44] In the manufacture of sliding-clasp fastener elements a wire or strip of material, metallic or non-metallic such as plastics, is passed through mating rollers or punch and die of a press shaped to bring the wire or strip to waved form in which the crests at one side provide the fastener heads 5 and the crests at the other are simultaneously or subsequently provided with one or a pair of notches 4 at which the individual elements are later severed from the strip. If the wire be of circular crosssection it is brought during the above process to substantially rectangular cross-section. At the same time the inner faces 2 of the parts 3 ultimately forming the clamping jaws of the fastener elements are serrated or formed transversely concave to improve the grip on the stringer tape when the fastener element is clamped thereon. The other surfaces may be smooth, or may be roughened to receive a covering of flock dust or the like by the process described on Specification 547,283. The limbs 3 are then brought closer together so that their outer surfaces are substantially straight as in Fig. 5 which shows a completed and severed element ready for attachment to the tape. The usual interlocking projections 6 and recesses (not shown) may be formed prior to this step but are preferably produced as the next step by punches and dies acting at right angles to the action of the previous set the dies being adapted to embrace the heads 5 to ensure accurate positioning of the projections and recesses. Before severing, the connected fastener elements may be plated or suitably coloured. Colouring aluminium fasteners by anodization is mentioned. The elements may be successively clamped on the tape and severed after clamping, or may be first severed and then applied to the stringer tape by known means. The strip may be heated to render it workable and less brittle if necessary.