baber/WOPTO huggingface dataset:
Patent GB-109479-A (GB)
IPC: B23D15/12
Abstract: 109,479. Ashton, T. R. R. Sept. 13,1916. Metal-working presses; shearing.-Apparatus for cutting wire ropes, metal bars, &c. and for punching, stamping, pressing, or bending metal comprises two parallel sets of ratchet teeth e' carried by two arms e<2> of a lever e pivoted at e<1> on a frame a. A holder c<1> for the tool c is pivoted at c<2> to an extension of the lever and is guided between rollers m, n on the frame. The lever e is actuated by pawls f<1> carried by arms f pivoted at f<3> to rods g which are adapted to be reciprocated by a rocking lever &c. h so that while one pawl is moving back the other is moving forward. The lever &c. h is rocked bv a bell-crank L The pawls are held up to the ratchets by springs f<5>. When the pawls are raised by means of the handles f<2> the lever is returned by a spring o on a guiderod p until a stop e contacts with the frame. For cutting operations, a moving blade c coacts with a blade b fixed in a channel iron d between the cheeks of the frame.
Patent GB-215385-A (GB)
Title: Suspension for vehicles
IPC: F16F9/50
Filed: 1924-05-03
Abstract: 215,385. Crombrugge, M. van. May 3, 1923, [Convention date]. Dash-pots.-In a vehicle shock-absorbing suspension device comprising a chamber containing two pistons and two springs, one of the springs being inserted between the two pistons and the other between one of the pistons and the end of the chamber and also a liquid brake, the liquid brake acts only during the expansion of the stronger spring the compression of the spring taking place freely during the shock. The disc interposed between the axle and frame of a vehicle comprises a cylinder C in which slide two pistons A, B, the piston B being secured to a piston rod T and the piston A slidably mounted thereon and the cylinder C being divided by the pistons into chambers F', F<2>, F<3> partly or fully occupied by a liquid adapted to be forced through suitable passages to brake the movements with the help of springs interposed between the two pistons and between the piston A and the cover of the cylinder. In the form shown, the communicating passages comprise a small axial passage O<2> connecting the chambers F<3>, F<3>, and small apertures P<1>, P<2> in the piston A. A ball valve D controlled by a spring r<2> is adapted to close in part the passage O<1>. One or more springs R<1> are interposed between the piston A and the cover of the cylinder, while a spring J<1> abutting against a shoulder J limits the separation of the two pistons. A spring r<1> is interposed between the pistons. The rod T may be secured to the frame of the vehicle and the cylinder to a lever connected to the axle.
Patent GB-832319-A (GB)
Title: Improvements in or relating to the polymerisation of vinyl-type monomers
IPC: C08F4/44
Filed: 1958-04-08
Abstract: A polymerization catalyst comprises a Cu compound and a reducing compound wherein a metal atom is attached by a single band to a trigonal or tetrahedral C atom; preferred ingredients are CuCl or CuCl2 and Al(i-Bu)3, but also specified are CuBr, CuBr2, CuF2, CuI, CuC2O4, Cu2O, CuO, Cu(OH)2, CuOH, Cu(NH4)2 Cl4 and Zn(i-Bu)2, LiAl(n-decyl)4, Li n-Bu, EtMgBr, i-BuAlCl2, (n-BuO)2Ali-Bu and n-BuOAl(i-Bu)2.  Olefinic monomers polymerized contain polar groups without ionizable hydrogen atoms, solvents, if used, having the same characteristic, e.g. aliphatic esters, nitriles, ethers and dimethylamides.  The preferred molar ratio of reducing compound to Cu compound is in the range 1 : 1 to 100 : 1. Specification 786,014 and U.S.A.  Specification 2,471,959 are referred to.ALSO:Ethylenically unsaturated monomers containing polar groups without ionizable hydrogen (e.g. vinyl formate. acetate, pivalate, stearate, benzoate, chloride, cyanide, -ethyl and -isobutyl ethers; 4-vinylpyridine, methyl acrylate and methacrylate, allylidene diacetate and 2-methoxybutadiene) are polymerized by means of a catalyst comprising a Cu compound, e.g. CuCl or CuCl2, and a reducing compound wherein a metal is attached by a single band to a trigonal or tetrahedral carbon atom, e.g. Al(i-Bu)3.  Polymerization may be effected by the bulk method or in a liquid aliphatic polar solvent without hydrogen, e.g. esters, nitriles, ethers and dimethylamides, and is preferably carried out at 20-70 DEG  C. and substantially atmospheric pressure. Materials specified in quenching and/or purification are dichloromethane, acetic acid and n-pentane.  Specification 786,014 and U.S.A. Specification 2,471,959 are referred to.
Patent GB-117515-A (GB)
Title: School Desks.
Inventor: HARDIE GEORGE DOWNIE BLYTH CRO
IPC: A47B97/04
Filed: 1917-08-02
Abstract: 117,515. Hardie, G. D. B. C. Aug. 2, 1917. Slates and blackboards.-A school desk is provided with a top in the form of a drum arranged so as to enable the pupil to do all work with the head erect. One side of the drum I is polished, and has a ledge to support books, &c., and the other sides of the drum are prepared for chalk writing. The drum turns in end members H having dovetail connexion with uprights J and adjusted in height by a screw G. Springs on the end members H engage holes in plates on the ends of the drum to hold it in the desired position after rotation.
Patent GB-1167861-A (GB)
Title: Double-Walled Container.
Inventor: SHERLOCK JOHN GERRARD
IPC: B65D1/26
Filed: 1965-03-16
Abstract: 1,167,861. Nestable cups. MONO CONTAINERS Ltd. 14 March, 1966 [16 March, 1965], No. 11131/65. Heading A4A. [Also in Division F4] A double walled cup including a thermally insulating air space 6 comprises a vacuum formed polystyrene inner 1 and outer 2 which have engaging concave portions 3. The inner is formed with a ledge 7 to facilitate stacking and is joined to the outer at the mouth of the cup by a fold 4 engaging a flange 5. Reference has been directed by the Comptroller to Specification 1082893.
Patent GB-788427-A (GB)
Title: Derivatives of leucauramine
IPC: C09K11/06
Filed: 1956-04-12
Abstract: The invention comprises leucauramine derivatives of the formula: <FORM:0788427/IV (b)/1> where X is a haloaryl radical, the halogen being chlorine or bromine.  They are made by condensing Michler's hydrol with a halogenated aniline in ethyl alcohol, and examples describe this condensation using o-chloraniline and 2.4-dichloraniline.  Other anilines specified are o-bromo-, m-chlor or bromo, p-chloro- or bromo-, 2.3-dichloro- or dibromo-, 2.4-dibromo-, 2.5-dichloro- or dibromo-, 3.4-dichloro- or dibromo-, 3.5-dichloro- or dibromo-, 2.3.4-trichloro- or tribromo-, 3.4.5-trichloro- or tribromo, 2.3.5- or 2.4.5-trichloro or tribromo-, and 2.3.4.5-tetrachloro or tetrabromo.  They are used as colour reactants in printing processes.
Patent GB-514776-A (GB)
Title: Improvements in or relating to natural colour television systems
IPC: H01J31/20
Filed: 1938-04-12
Abstract: 514,776. Television ; cathode-ray tubes. SCOPHONY, Ltd., and ROSENTHAL, A. H. April 12, 1938, No. 11198. [Classes 39 (i) and 40 (iii)] Alkali-halide and like screens of the kind described in Specification 513,776 are used in a television receiver utilizing the subtractive method of colour reproduction. Incoming signals, e.g., corresponding to three primary colours, are applied to produce reversed images on the screens 7, 8, 9, as described in that Specification, the colour of each image being complementary to the corresponding primary colour. White light from a source 17 is projected successively through each screen to produce the coloured image at 18. The source 17 is imaged on lens 20 which images the screen 7 on the screen 8, while lens 21 images lens 20 on lens 22 and so on. The colour of the transparencies 7, 8 and 9 is dependent on the material and temperature of the screens. The screens must therefore be maintained at constant temperature, as by thermostat control 11. Two of the screens may be placed back-to-back in a common container and scanned from opposite sides, Fig. 2 (not shown).
Patent GB-810499-A (GB)
Title: Comb circles for textile combing machines
IPC: D01G19/02
Filed: 1956-04-13
Abstract: 810,499. Combing-machines. BERTHAM, F. H., and BERTHAM, P. S. April 11, 1957 [April 13, 1956], No. 11247/56. Class 120(1) The upper face of a comb circle 1 of a Noble or like comb is provided with a concentrically arranged wear-resistant track 5, Fig. 2, intended to register with the usual coacting knives. The track may consist of a film of wear-resistant metal such as chromium or nickel electrolytically deposited in a recess 4 formed in the circle face and also on the outer wall of the circle, after which the circle is ground or burnished and the pins 3 inserted in known manner. Alternatively films of metal may be deposited in annular grooves 4, Fig. 4, formed between the rows of pin apertures 2.
Patent GB-117938-A (GB)
Title: Improvements in or relating to Potato Planting Machines.
Inventor: LANGSDORF WILLIAM
IPC: A01C9/06
Filed: 1917-08-04
Abstract: 117,938. Langsdorf, W. Aug. 4, 1917. Addition to 19756/14. Potato-planters. - Relates to potato-planting machines having gripping members as claimed in the parent Specification, and comprises means whereby the depth of the space between the jaws of the grippers when open, may be adjusted to suit the size of the potatoes, without altering the length of the fingers. As shown in Fig. 1, the pivoted jaw or finger b of the gripper is of fixed length, and the depth of the space between the jaws a and b when open is regulated by adjustment of a pivoted frame or grid c, secured in position by a screw d.
Patent GB-880751-A (GB)
Title: Improvements in or relating to devices for practising golfputting
IPC: A63B57/00
Filed: 1959-04-03
Abstract: 880,751. Golf-practice appliances. COLES, L. U. March 24, 1960 [April 3, 1959], No. 11373/59. Class 132(2) A golf-putting practice aid comprises a base 1 fitted with a horizontal elastic or resilient member 5 disposed at a height above the playing surface equal to the radius of the ball. The player endeavours so to play the ball that it rebounds from member 5 to the point from which it was played. As shown the base is part circular, provided with a bottom 6 with apertures 7 for pegging it to the ground, and formed with a groove 3 receiving members 5 formed as an elastic band. In modifications, the base may be located solely by its weight or the band may be replaced by a tension spring. The playing position may be marked by a dot surrounded by concentric rings allotted scoring values.
Patent GB-571824-A (GB)
Title: Improvements relating to the attachment of nose-caps to firearms
IPC: F41C23/02
Filed: 1943-07-14
Abstract: 571,824. Smallarms. TRIGGS, W. W. (Western Cartridge Co.). July 14, 1943, No. 11468. [Class 119] The nose-cap 21 of a rifle or carbine is attached to the barrel 15 by a ring- like web 23 and to the stock 16 by a spring latch 31. The latch has a pinpart 32 which is entered in a hole 38 in the front end of the stock, and a resilient arm 33, the front end o!' which has a tooth 35 which snaps in front of a shoulder 39 on the nose-cap when the latter is pushed home over the ends of the stock and handguard 17. When the nose-cap is in position the latch cannot be removed. A groove 24 permits the nose-cap to be passed over the frontsight positioning rib 20 on the barrel after removal of the sight. Lightening and ventilation grooves 30, 27 are formed in the stock and hand-guard, respectively, and a sling-attachment eye 43 is provided on the nose-cap.
Patent GB-1059801-A (GB)
Title: Reciprocatory pumps
IPC: F02M1/00
Filed: 1965-03-18
Abstract: 1,059,801. Reciprocating pumps. GENERAL MOTORS CORPORATION. March 18, 1965 [March 30, 1964], No.11483/65. Heading F1A. In a fuel pump having a pumping diaphragm or piston actuated by a plunger 30, a diaphragm seal 40 is bonded to plunger 30, and is prevented from reversing its curvature by a protector member 46.
Patent GB-114903-A (GB)
IPC: B21C23/30
Abstract: 114,903. Stratton, J., and Claremont, E. A. April 25, 1917. Squirting.-Apparatus for forming lead or other pipes or covering cables by extruding metal through a die comprises an 8-shaped chamber formed of a two-part casing, the parts of which are pivoted at the bottom and bolted together at the top. Pairs of intersecting toothed, helically grooved, or worm rollers b are arranged longitudinally in the casing. A box d containing a die e is arranged in front of the casing, and a hollow adjustable core-holder f<1> which receives the cable is arranged in the dividing-wall between the pairs of rolls. The casing a and box d are constructed to form a pressure chamber g, g<1>. Hoppers, which receive the molten lead, communicate with the chamber adjacent the rolls. The rolls rotate to carry the lead along the top and bottom of the casing towards the pressure chamber, when, owing to the engagement of the teeth, the lead is forced out towards the die. The rollers are driven directly, but to secure a more perfect discharge of lead, the rollers may be momentarily hastened alternately, or they may be driven directly and indirectly alternately. The extruding chamber may be water-cooled. In lieu of the construction shown, the cable or other article may pass through a tube arranged in a space formed by cutting away the rollers,
Patent GB-1219836-A (GB)
Title: Regulable and controllable inverter- or frequency changer-arrangement for feeding a.c. motors
IPC: H02P25/024
Filed: 1968-03-08
Abstract: 1,219,836. Control of A.C. motors. BROWN, BOVERI & CO. Ltd. 8 March, 1968 [10 March, 1967], No. 11498/68. Heading H2J. [Also in Divisions G1 and G3] A polyphase motor 2 is energized from an inverter or frequency changer 1, the control signals for which are produced by an A.C. tachogenerator 6 which has two outputs in quadrature per phase, of constant amplitude for all frequencies (i.e. speeds), the two outputs being individually adjustable by " potentiometers " 4, 5 so that the phase angle of the resultant, at 48, can be varied. The " potentiometers " comprise electrical circuits whereby the ratio of their output to their input is adjusted by a D.C. control signal. As shown, the motor 2 is a synchronous machine and the control signals for 4 and 5 are derived from further potentiometers 7, 8 which are supplied with a motor current signal J1 and are controlled by signals proportional to cos α and sin α, where α is the angle between the rotor flux and the flux due to armature reaction, and is derived from a function generator 11 according to the motor current J1. The combined signal at 48 is compared with the motor current measured at 47 and the difference amplified at 3 to control the frequency and current output of the inverter or frequency changer 1. In an alternative embodiment the motor is an asynchronous machine and control is effected according to a desired slip frequency, which is produced by a function generator (equivalent to 11) according to motor current J1 and controls the " potentiometers " 7, 8. The object of the invention is to provide " four-quadrant operation" of the motor with a uniform torque at all speeds. The tachogenerator 6 may comprise pairs of Hall probes on a stator associated with a permanent magnet rotor or Hall probes built into the stator of the motor. Alternatively, in Figs. 6 ... 8 (not shown), it comprises aluminium tabs (34) carried by the rotor which pass through air gaps in iron cores 36 associated with transistor oscillators. When this happens the circuit stops oscillating and a pulse is produced. There are a larger number of these iron/oscillator circuits and their output pulses are fed through resistors (42) which are graded so that the combined outputs, when amplified (43) approximate to a sine wave.
Patent GB-561143-A (GB)
Title: Improvements relating to the jointing of tubular members in built-up structures
IPC: E04B1/58
Filed: 1942-08-17
Abstract: 561,143. Metal tubular structures. SMITH, R. H. Aug. 17, 1942, No. 11532. [Class 20 (ii)] [Also in Groups XXII and XXVIII] In tubular structures composed of tubes 2 of circular, oval or like section connected by welding, brazing or soldering a portion or portions of the members to be jointed are shaped by pressing, forging or like operations to a section having one or more straight sides so that transverse sections through a member such as F, Fig. 6, present straight lines of junction which may abut against a plane surface or another member E or may be united along straight lines to similar sections on another member or members such as G and H. Fig. 4 shows the application to the joining of a member A to flat surfaces on members B and C, while Fig. 5 shows a member having a shaped portion 4 of square section presenting plane sides to which other members L, M may be connected.
Patent GB-1386419-A (GB)
Title: Apparatus for the application of liquids to crops
IPC: A01F15/08
Filed: 1972-03-13
Abstract: 1386419 Treating crop BP CHEMICALS INTERNATIONAL Ltd 22 Feb 1973 [13 March 1972] 11578/72 Heading A1F [Also in Divisions B2 B5 and B8] In a crop baler the pick-up zone is covered and has means, for example as in Specification 1361564, to produce a dispersion of liquid droplets of size 25 to 250 microns and a rotatable fan located in the ceiling of the covered zone to direct the droplets upon the crop. Formic, acetic, and/or propionic acid may be fed to the dispersion producing means by gravity or by a pump as described in Specification 1352209. The fan may be integral with the dispersion producing means. The pick-up roller and zone may be covered with a polyethylene sheet.
Patent GB-1040781-A (GB)
Title: Improvements in liquid purification
IPC: C02F1/08
Filed: 1964-03-19
Abstract: 1,040,781. Distillation apparatus; production of potable water from saline water. SALINE WATER CONVERSION CORPORATION. March 19,1964 [June 12,1963], No. 11608/64. Heading B1B. Pure solvent is recovered from solutions, e.g. potable water is produced from sea water and other sources of impure water, by passing the solution through a heater and feeding the warmed liquid through pipe 16 to the head of a vertical cylinder 76 filled with packing material such as Raschig rings, pieces of broken stoneware or steel wool, where the pressure-conditions in the free space of the packing are maintained such that diffusion-vaporization of some of the solvent occurs from the solution as it flows down over the packing in the form of a film; the vapours pass through apertures 94 and are condensed on cooling- coils 98 disposed in stages 91 formed by plates 86 extending between the packed column and the housing 82. The condensate flows out of each stage via a liquid-seal and then flows into the next lower stage, e.g. the condensate flows from stage 91a to stage 91b via pipe 112 and annular passage 116. The transfer-pipes between the other stages are not shown for they are staggered in a spiral-like manner around the housing. The total condensate is withdrawn from the last stage 91e via outlet 68 by a wet pump. The residual non-evaporated solution flows out of the bottom of the packed-column through openings 80 into sump 95. Non-condensable gases are withdrawn from each stage through a needle-valve each of which leads to a common vent pipe, the lower end of this pipe being connected to the wet pump. The liquid-to-be-distilled is preheated by passing it through the cooling coils in series where it acts as coolant, the liquid being introduced into the coils through inlet 64 and withdrawn through outlet 66. The liquid is then further heated, e.g. by an electric immersion heater, before it is fed to the packed column. The residual solution withdrawn from sump 95 through outlet 53 may be recirculated to the system, if desired after passing it through an air-cooler. The purification of sewage effluent is mentioned.
Patent GB-1285797-A (GB)
Title: Multiplexed control system
IPC: G05B19/29
Filed: 1970-03-11
Abstract: 1285797 Programmed control WESTINGHOUSE ELECTRIC CORP 11 March 1970 [28 March 1969] 11657/70 Heading G3N A multiplex control system responsive to decode command signals has a calibration subtractor and store which is used to modify the operation of a main subtractor in response to time required command and feedback signals. As shown, binary coded decimal command signals C are derived from a command input C1, comprising a card or tape reader, and fed, on a decade basis, under control of a multiplex clock MX to a one decade subtractor VS for combining with vernier signals V, from a card or tape reader, V1 providing small variations of the signal C. The modified command signal is fed to a main subtractor MS where it is combined with a position feedback signal F in a sense dependent on a direction signal D1, from a memory DM1, to provide a decade positional error signal E which is stored in a memory EM1. The development of the error signal E and storage in the memory DM1 is carried out decade-by-decade under control of the multiplex clock MX during a word time sequence relating to the function being controlled. The presence, or absence, of a carry signal EC in the fourth decade of the five decade word is stored in a direction memory DM1. The error signal stored in the memory EM1 is decoded to set up a relay driver RD1 providing an output in accordance with the magnitude of the stored error. The driver output is applied through a buffer amplifier BA1 to a speed regulator SR1 the mechanical output of which, through a gearbox, positions a movable roller MR1 to vary the separation with respect to a fixed roller FR1 in the first stage of a rolling mill. The other stages are time-multiplexed through additional words of the taped programme. The position of the gear-box shaft is transmitted to a digital transducer and logic TR1 through a data link ST1, SY1 and the absolute position signals T1 are applied to a terminal T. These signals are applied to a one-decade binary-coded decimal subtractor CS at a calibration time, under control of the clock MX, when switches CS1, CS2 are closed and the first decade of the command signal C compared with the first decade of the position signal T1 and the difference S1 held in a memory CM. At subsequent calibration times the other decades of the command and position signals are compared and stored in the memory CM. At the end of the calibration cycle the switches CS1, CS2 open and the subtractor CS receives the position signal T1 and stored calibration signals CS1 and transmits the feedback signal F for the first stage pair of rolls.
Patent GB-864341-A (GB)
Title: Improvements relating to the canning of fruit
Inventor: ALEXANDER ERIC GEORGE
IPC: A23L27/30
Filed: 1956-04-18
Abstract: Fruit in cans or sealed glass jars is sweetened with saccharin and sorbitol, the amount of sorbitol being not more than 30% by weight of the total contents of the container, but more than 450 times the weight of the saccharin.  The saccharin is preferably not more than 0.04% by weight of the total contents of the container.  The sorbitol may be 7-20%, and the saccharin 0.01-0.014% of the contents of the container.