baber/WOPTO huggingface dataset:
Patent GB-830757-A (GB)
Title: Improvements in or relating to high strength synthetic linear polyamides
IPC: C08G69/06
Filed: 1957-09-17
Abstract: In an apparatus for making high molecular weight polyamides from pre-polymers of the amino-acid type (see Group IV (a)), as shown in Fig. 1, the polyamide prepolymer (having a specified content of extractables) is fed in <PICT:0830757/III/1> <PICT:0830757/III/2> granular form into the vessel B1 in which it is extracted with a suitable solvent, the extracted pre-polymer being passed to the tank 1 from which it is fed intermittently to the polymerization vessel 2 equipped with a jacket 9 and a mixer-conveyer 5 through the interior of which a heating medium is passed and means for passing an inert gas through the vessel from 7; the polymer then being discharged into the cooling vessel 3, a coolant being passed through the interior of the mixer-conveyer 5 and the jacket 10 and blasts of inert gas being introduced from 7, the cooled polymer then being passed into the hopper 4 and to the packaging means where it is hermetically sealed. Fig. 2 is a cross-section taken along the line 2-2 in Fig. 1. Specifications 461,236, 461,237, 535,421 and U.S.A. Specifications 2,071,250, 2,071,251, 2,241,321 and 2,241,322 are referred to.ALSO:A polyamide of high molecular weight is made by subjecting a polyamide prepolymer of the amino-acid type having a content of extractable materials of at least 2% by weight to extraction with a suitable solvent until its content of extractable material is substantially reduced, and then further polymerizing the <PICT:0830757/IV (a)/1> polyamide in the solid phase in an inert atmosphere of moisture content (in terms of vapour) below that of the extracted polymer. The amino-acid polymers are made from amino acids or derivatives thereof with or without dicarboxylic acids and diamines.  The extractable materials are unchanged monomers, low polymers and water.  Specified solvents are water, methanol, ethanol and trichloroethylene. Nitrogen is the specified inert gas.  A prepolymer of the amino-acid type in granular form is extracted with liquid solvent in B1, the polymer then being passed to the tank 1 and charged intermittently into the polymerization vessel 2 where it is mixed by the mixer-conveyers 5 and heated in the presence of the dry inert gas, the treated polymer being discharged into the cooling vessel 3, inert gas being passed through the tubing holes 7 and the polymer then being passed through the hopper 19 to the packaging means where it is hermetically sealed.  The Specification describes the treatment of polycaprolactam.  The products of the invention which may contain pigments, colours, plasticizers and fillers may be used as moulding powders or may be extruded in molten state to form fabricated articles, e.g. vases, bottles and globes. Specifications 461,236, 461,237, 535,421 and U.S.A. Specifications 2,071,250, 2,071,251, 2,241,321 and 2,241,322 are referred to.
Patent GB-226016-A (GB)
Title: Improvements in and relating to playing cards
IPC: A63F1/02
Filed: 1923-11-21
Abstract: 226,016. Hooper, R. Nov. 21, 1923. Card games. - Playing cards are characterized by the printing on each card of one ordinary sized " pip " a of the suit only, whether of court or common cards, together with designating numbers or letters b, the court and common cards being identical except for such designation. The usual marking c may be provided at two or all four of the corners of each card.
Patent GB-226199-A (GB)
Title: Improvements in or relating to tumbler locks
IPC: E05B29/06
Filed: 1924-12-08
Abstract: 226,199. Keller et Cie, C. V., (Assignees of Keller, C. V.). Dec. 15, 1923, [Convention date]. Locks, revolving-barrel; cases for.-The locking members of a revolving-barrel lock comprise apertured laminae g arranged one behind another on a transverse actuating bar d, The apertures are the same size but made at different heights in the laminae to correspond with the aligning edge m of a key k, which slides the laminae out of engagement with grooves i<1>, i<2> in the casing and thus permits the actuating bar d to be rotated by the key. A projecting point n on the key returns the laminae to the groove i<1> as the key is withdrawn. The casing c may be square having diagonally opposite screws to connect it to the bolt casing e so that the lock may be used for right or left handed arrangement. Side grooves may be provided so that the laminae must be moved horizontally as well as vertically, or some may be moved horizontally and some vertically. Fig. 6 shows a shell for attaching the lock to a door, having a sharp edge so that the opening in the, door is punched out. with it, and it can then remain as a lining in the door. According to the Specification as open to inspection under Sect. 91 (3) (a) instead of the grooves being in the casing they may be made in the actuating bar, the laminae having abutments in the apertures adapted to enter grooves in the actuating bar. This subject-matter does not appear in the Specification as accepted.
Patent GB-838735-A (GB)
Title: Improvements in and relating to the dyeing of threads, filaments, fibres and the like
Inventor: BASHFORD LESLIE ARTHUR
IPC: D06P3/48
Filed: 1957-09-19
Abstract: Fibres of cellulose triacetate, polyethylene terephthalate or polymers and copolymers of acrylonitrile are dyed with dispersed acetate dyes in the presence of an octyl phenol or an octyl cresol as a carrier.  The carrier may be added to the dyebath or to a pretreatment bath.
Patent GB-1530618-A (GB)
Title: Winch to facilitate the coupling of trailers to towing vehicles
IPC: B60D1/38
Filed: 1975-07-15
Abstract: 1530618 Hand winches F G TAYLOR 21 May 1976 [15 July 1976] 29525/75 Heading B8B A winch to facilitate the coupling of a trailer to a towing vehicle comprises a body 12 having a hook 13 for coupling to a towing ball 10, an arm 14 projecting from the body 12 and mounting a winding drum 15 at the end thereof, a pulley 20 freely mounted on the body 12 and a cable 25 which extends from the drum 15 around the pulley 20, through a block 22 on the trailer and has its end anchored to the body 12. The block 22 is releasably mounted over an upstanding pin 24 on the trailer. The arm 14 projecting from the body 12 transversely of a line between the pulley 20 and the hook 13 whereby the winch drum does not obstruct passage of the trailer. The drum 15 is manually operable by a handle 17, 18 and the extreme end of the arm 14 incorporates a rigid handle 19.
Patent GB-1396074-A (GB)
Title: Desalination apparatus
IPC: C02F1/08
Filed: 1973-06-21
Abstract: 1396074 Multiple effect apparatus SNAMPROGETTI SPA 21 June 1973 [7 July 1972] 29629/73 Heading B1B In multiple effect apparatus, brine preheated in heat exchangers 3 is introduced at 2 into tanks 4 and flows as a thin film down evaporator tubes 8 into the tanks of the next lower stage/effect, steam being introduced at 5. Water vapour thus formed passes through demister 7 and condenses in the outside of tubes 8 of this lower stage. The brine thus progresses down through each stage/effect and leaves at 10. Condensate from each stage/ effect passes downwards via syphons 9 and uncondensible gases by valves 12.
Patent GB-171876-A (GB)
Title: Improvements in or relating to pillion seats for motor cycles and the like
IPC: B62J1/14
Filed: 1920-10-20
Abstract: 171,876. Soper, A. H. Oct. 20, 1920 Seat attachments.-A pillion seat for motorcycles &c. is provided or formed with a resiliently-mounted frame carrying a box or receptacle for tools &c., the seat portion proper forming the cover or lid of the box. The box 4 is secured within an upper frame member 2 which is supported by spiral springs 3 from a lower frame member 1, and is fitted with a seat portion 6 hinged to one side thereof. The seat portion is retained in its lowered position by a pin or the like 10 engaging with coinciding eyelets 9, 9' upon the seat portion and frame 2 respectively. The seat is secured to the luggage-carrier by clamping-members 12 upon screw-threaded spindles 11 held between outer and inner longitudinal bars of the lower frame, the members being prevented from turning by projections engaging above and below adjacent transverse bars 1<2>. According to the Provisional Specification, the seat portion may be arranged to rest on one or more strengthening-bars extending transversely of the upper frame member between its ends.
Patent GB-903779-A (GB)
Title: Apparatus for charging shaft furnaces
IPC: C21B7/20
Filed: 1960-08-29
Abstract: 903,779. Charging shaft furnaces. BECKENBACH, K. Aug. 29, 1960, No. 29670/60. Class 51 (2). A charging hopper 15 disposed at the mouth of a shaft furnace 1 may be closed at its lower end by a bell 3 provided with extension sectors 35, 36 hinged to its underside, their inclination being adjusted by movement of a rod 43 in the bell operating sleeve 30. An annular apron 50 is fixed relative to the rod 43 by rods 49 and 48 and thus moves downwards as the inclination of the sectors 35, 36 is increased. Charge material conveyed to the top of the furnace in a skip 10 passes via a hopper 12, a reciprocating table 13 and a rotary plate 14a into the hopper 15. On lowering the bell 3, the variable inclination of the sectors 35, 36 and the position of the apron 50 relative to the bell determines the distribution of the charge in the furnace, Figs. 5, 6 and 7 (not shown). The skip 10 may be filled at the lower end of the hoist 4 via a shoot 9 from a chamber 7 which is divided into two compartments for coke and ore by a wall 6, adjustment of a shutter 11 controlling the rate of coke discharge. In a modification, Fig. 2 (not shown), two parallel silos dispense coke and ore through weighers and via shoots on to a conveyer belt and thence by a further belt and shoot into the skip 10.
Patent GB-351851-A (GB)
Title: Automatic arrangement for synchronising two sources of electricity
IPC: H02J3/42
Filed: 1930-10-04
Abstract: 351,851. Synchronizing. MASCHINENFABRIK OERLIKON, Oerlikon, Switzerland. Oct. 4, 1930, No. 29762. Convention date, Oct. 12, 1929. Drawings to Specification. [Class 38 (iv).] In synchronizing apparatus employing a rotary synchronoscope or the like closing the energizing circuit of a time-delay relay affecting the parallel connection, the relatively movable elements of the synchronoscope have contact members which do not touch, and one circuit of the relay includes a source of electricity the potential of which is such as to break down the air gap between the contact members as they approach each other.
Patent GB-1125306-A (GB)
Title: Improvements in or relating to range and bearing measuring apparatus
Inventor: BOLTON RAMON
IPC: G01C3/00
Filed: 1966-07-04
Abstract: 1,125,306. Navigation aid. MARCONI INTERNATIONAL MARINE, CO. Ltd. 6 June, 1967 [4 July, 1966], No. 29860/66. Heading H4D. A conning aiding ship-borne equipment for determining the range of objects, comprising, a television camera Fig. 1 mounted forward on the ship 5 to view forwardly and downwardly, means 5 for moving the camera in azimuth through an angle relative to the ship's head indicated at 9, means 4 for moving the camera in elevation through an angle relative to a normal fore-and-aft line of trim indicated at 8, a closed circuit television system including said camera and a television reproducer 13 displaying the scene being viewed, means 15 for separating field pulses from the output of the camera, means 15 for producing from the separated field pulses sawtooth voltage excursions each occupying one field period, a manually variable DC voltage source 18, the control for which also operates a scale 20 marked in range, a second manually variable DC voltage source 19, the control for which also operates a scale 21 marked in ship's draft forward relative to a pre-determined "normal" draft forward, a comparator 17 comparing the sawtooth excursions and the sum of the two variable DC voltages and giving an output on occurence of equality therebetween, a gate 22 fed with said comparator output, means 23 for separating line pulses from the output of the camera and utilizing said line pulses to close the gate when the pulses occur and open it between pulses, a signal combiner 14 fed with the output from the camera and the output passed by the gate, and means for feeding the combined output to the television reproducer, the action of the gate being such that the gated output of the comparator produces a brighter horizontal trace X along one line only. Thus to determine the range of an object viewed by the camera and assumed to be on the ground plane, control 19 is initially set in accordance with the known ship's draft and control 6 in accordance with the ship's trim, and the azimuth position of the camera is varied until the object appears horizontally central in the display. Control 18 is varied until trace X crosses the object image, where the object's range can be read on scale 20. The relative bearing of the object may be read from scale 9. Line X may alternatively be produced by mechanically movable means in front of the reproducer.
Patent GB-1021082-A (GB)
Title: Improvements in or relating to electric motor arrangements
Inventor: FREDRICKSON GUSTAV OLAF
IPC: H02P8/14
Filed: 1962-08-03
Abstract: 1,021,082. Measuring angular displacement electrically. SUPERIOR ELECTRIC CO. Aug. 3, 1962, No. 29919/62. Heading G1N. Rotation of potentiometer wipers 16, 17, Fig. 1 causes quadrature currents Fig. 1A to flow through - two sets of stator windings 11, 12 of a selsyn having a toothed permanent magnet rotor and toothed stator poles, the arrangement being such that continuous rotation of the wipers 16, 17 causes a corresponding continuous rotation of the selsyn rotor, one revolution of the wipers corresponding to a displacement of the selsyn stator by one tooth pitch. Other arrangements are described using autotransformers and rectification.
Patent GB-318191-A (GB)
Title: Improvements in or relating to the working, moulding, or shaping of dough or the like plastic substances
IPC: A21C9/08
Filed: 1928-10-17
Abstract: 318,191. Peters, J. P. Aug. 30, 1928, [Convention date]. Dough - working machines; rolling-machines. -A portion of dough &c. is flattened into elongated shape, the front edge is folded back, the rear edge is stretched and straightened and the whole mass is then rolled up into a scroll. As shown in Fig. 7. the dough portion 1 is delivered by a timing-flap 92 to flattening-rolls 13 and passes thence to two pairs of transverselydisposed rolls 14, 15. The flattened sheet is delivered to a conveyer 22 and is carried beneath a pivoted folder 28 disposed between a pair of vertical rollers 30 which straighten the sides. Rolls 31, 33 flatten the fold and the dough passes to a further pair of convex rolls 61, 27 beyond which are a series of independent curlers 62, 63, 64 and a rolling-up device comprising three rolls 82 carried by a pivoted yoke 67. Gripper devices situated at each side of the conveyer 22 in advance of the roll 61 engage the rear end of the dough for stretching and straightening. Each gripper device comprises a member 38, Fig. 12, supported in proximity to the conveyer by a shaft 42 carried by arms 41 extending from a spindle 43 adapted to be rocked through 180‹, and associated with a pivoted member 39 urged downwardly by a spring 5 and retracted by cams 59, 60 extending from the arms 41. A chain 53 passing around a sprocket 54 on the shaft 42 and a fixed sprocket 51 preserves the orientation of the gripper. In action, the grippers move from a front position inwardly to the position shown in Fig. 12, where the members 39 are released and descend to grip the dough, which is thus drawn rearwardly and outwardly. The machine is driven from a motor 16, Fig. 7, driving a shaft 17 fitted with a sprocket 18 driving the conveyer 22 and rolls 13-15. A sprocket 19 drives' through a chain 90 a shaft 49 which operates the spindles 43 through crank mechanism 47-50 and bevel gears 44. A cam 89 on the shaft 49 rocks the frame 67 through levers 76, 72 and a second cam 91 actuates the flap 92 through a lever 95 and rod 97. The rolls 82 are rotated through sprocket gearing 84, 85 driven from the roller 27. A cover 102 encloses the apparatus. Specifications 319,700, 319,701, 319,702, and 319,703 are referred to.
Patent GB-1413190-A (GB)
Title: Electrostatographic methods and apparatus
IPC: G03G15/23
Filed: 1973-06-25
Abstract: 1413190 Duplex copying XEROX CORP 25 June 1973 30009/73 Heading G2H [Also in Division B6] Electrostatographic toner images are transferred simultaneously to back-to-back support surfaces from two photo-conductive drums 1a and 1b at the nip 2 between the drums, latent images being formed sequentially on the drums at slits 23 and 22 in staggered relationship (for synchronous transfer) by progressive exposure at successive stations 32a and 32b. The toner images may be formed on both sides of a single copy sheet cut from a supply roll 29. Alternatively (for double speed reproduction of a single original), an original and a copy thereof may be fed back-toback through the successive exposure stations 32a and 32b, the toner images being transferred to the opposite faces of adjacent copy material from supply rolls 29 and 31. Using translucent copy paper and two different coloured toners, twotoned transparencies may be produced.
Patent GB-364633-A (GB)
Title: Improvements in or relating to domestic stoves
IPC: F24B1/183
Filed: 1930-10-08
Abstract: 364,633. Domestic boilers. GARLAND,. T. S., Marlborough Works, Chipping- house Road, Sheffield. Oct. 8, 1930, No. 30067. [Class 64 (i).] In a boiler for the back of a fireplace, of the kind having a vertically extending recess c in the rear face to form a flue, the recess is closed by firebrick or the like e which is independent of the grate. The boiler shown inclines forwardly, and is of less depth from front to back at the top than at the bottom. A horizontal flue d leads from the front into the flue c; in a modification, the flue d is replaced by a flue formed beneath the boiler in a supporting brick.
Patent GB-674114-A (GB)
Title: Improvements in cathode ray tube system for colour television
IPC: H03B13/00
Filed: 1950-12-08
Abstract: 674,114. Cathode-ray tubes. RADIO CORPORATION OF AMERICA. Dec. 8, 1950 [Dec. 17, 1949], No. 30098/50. Class 39 (i). [Also in Group XL (b)] A colour T.V. system for sequential or simultaneous colour working comprises a C.R.T. with a perforated target 16 through which electrons pass and are reflected back along paths 28, 30, 32, on to an appropriate coloured phosphor R, G, B, by an electrostatic reflector such as 18 (of wire mesh or transparent conducting material) which provides a non-linear field 22, 24, 26 whereby the angle of reflection is controlled by the depth of penetration into the reflector field. Several target and reflector constructions are described. For sequential colour working, Fig. 1, colour selection is achieved by a stepped wave applied either to the C.R.T. cathode to vary the beam velocity or to the reflector to vary its field strength. For simultaneous colour working, Fig. 6, three gun elements are arranged to fire electron beams through the same hole in the target, but with different velocities (due to permanent cathode biases) whereby they will be reflected to different coloured phosphors, and the three control electrodes are modulated with the respective colour video signals. Assuming the rate of appearance of any one colour is, e.g. 3.8 megacycles/sec., the receiver 38 will supply in addition to the normal scanning and video signals, three 3.8 megacycle voltages 120 degrees out of phase which are applied to three class-C- operated valves 43, 45, 47 with a common anode load producing 11.4 mc. pulses. These pulses drive a valve 50 with tuned anode circuit to produce an 11.4 mc. sine wave, which is fed to a pentode 50<SP>1</SP> working at its upper bend to produce negative keying pulses for the stepped wave generator 46. The stepped wave generator comprises, three trigger pair circuits arranged in a ring, and the keying pulses are applied to the first valve of each pair in parallel whereby each of the circuits are triggered in turn, Fig. 3 (not shown). The resultant anode potentials A ... F of the trigger valves will be as shown in Fig. 3A with respect to the 11.4 mc. sine wave G. The waveforms D. E are added by applying them to a pair of pentodes with common anode and cathode loads, Fig. 3b (not shown), to obtain the required stepped waveform for colour selection. This wave may be applied to either the cathode or reflector by switch 52, Fig. 1. Alternative target and reflector constructions may comprise (i) a slotted target and transparent conducting plates 100 alternately connected to different potentials, Fig. 2A, and Fig. 2 (not shown), or (ii) the coloured phosphors may be concentric with the aperture in the target, and the reflector may have random indentations of small diameter compared with the target aperture, Fig. 4 (not shown), or (iii) the reflector may have spike-like projections to produce the required field, Fig. 5 (not shown).
Patent GB-882299-A (GB)
Title: Improvements in bearing assemblies
IPC: F16C33/76
Filed: 1958-09-19
Abstract: 882,299. Bearings. AUTO UNION G.m.b.H. Sept. 19, 1958 [Sept. 19, 1957], No. 30109/58. Class 12 (1). A ball bearing for the crank-shaft journal of an I.C. engine which is packed with lubricant within sealing rings 8, 9, is provided with additional sealing devices 12, 14 and 13, 15 between the bearing and the interior of the crankcase. As shown, spring sealing rings 14, 15 are arranged in annular grooves in packing rings 12, 13. Grooves 18, 19 in the rings 12, 13 may be connected by passages to the atmosphere and to the induction manifold of the engine so that the spaces between the packings is constantly supplied with fresh air. In a modified arrangement the packing rings 12, 13 are replaced by membrane discs secured to the inner ball-race and in sealing engagement with the outer race..
Patent GB-372232-A (GB)
Title: Improvements in and relating to the treatment of vegetable lecithin
IPC: A23J7/00
Filed: 1931-11-02
Abstract: The emulsifying capacity of vegetable lecithin is increased by treatment with benzoyl peroxide, with or without other peroxides such as hydrogen peroxide, sodium peroxide, or barium peroxide, or for salts such as sodium percarbonate or sodium perborate.  The treatment may be carried out by intimately mixing the lacithin with 0,4 per cent of benzoyl peroxide while warming.  When mixing lecithin with fat and oil and the resulting fine colloidal dispersion with water, improved results are obtained using lecithin thus treated.ALSO:Vegetable lecithin is bleached and its emulsifying capacity increased by treatment with benzoyl peroxide, with or without other peroxides such as hydrogen peroxide, sodium peroxide, or barium peroxide, or persalts such as sodium percarbonate or sodium perborate.  The treatment may be carried out by intimately mixing the lecithin with 0,4 per cent of benzoyl peroxide while warming.  When mixing lecithin with fat and oil and the resulting fine colloidal dispersion with water, improved results are obtained using lecithin thus treated.
Patent GB-785737-A (GB)
Title: Maintenance of brightness in bleached wood pulp
IPC: D06L4/10
Filed: 1955-10-24
Abstract: The brightness of bleached chemical wood pulp of density 75-90 per cent and pH 6-10 is maintained by incorporating in the pulp 0.02-0.25 per cent of hydrogen peroxide, based on the weight of the pulp.  The hydrogen peroxide may be obtained from a compound generating it in aqueous solution, and may be added to the pump at the same time as its pH is adjusted with an alkali metal pyrophosphate, tripolyphosphate or other phosphate or borate, or sodium silicate, carbonate or hydroxide.  Wetting or sequestering agents, e.g. the sodium salt of ethylenediamine tetra-acetic acid, may also be added.