baber/WOPTO huggingface dataset:
Patent GB-195074-A (GB)
Title: Improvements in apparatus for permanent hair waving
IPC: A45D4/04
Filed: 1923-03-14
Abstract: 195,074. Bouchard, A. March 17, 1922, [Convention date]. Hair-curling appliances. -Apparatus for permanent hair-waving comprises a metal tube b, Fig. 1, furnished at one end with an end piece a of rubber, preferably moulded with longitudinal or transverse folds and adapted to make a watertight joint at the root of the hair. The end piece a is secured to the body b by a hinged collar d, tightened by an eccentrically pivoted lever d<1>. To the other end of the tube b is secured by a collar d a spherical rubber bulb f or preferably a rubber chamber e, e<1>. Vents f<1>, e<11> are provided to permit steam to escape. To secure the rubber end piece a on the hair, a clamp comprising two jaws i, g, Fig. 5, is used. A catch k on the jaw i is pressed by a spring r against teeth on the branch g and holds the clamp firmly closed. The hair, coiled on a curler, is introduced into the body b, the end piece a clamped round the root end of the hair, and a tubular electric heater c of any type is placed over the body b. The rubber bulb or chamber e is then attached and the body filled with water which is kept boiling by the heater c for the required period.
Patent GB-765637-A (GB)
Title: Feather plucking device
IPC: A22C21/02
Filed: 1955-03-14
Abstract: 765,637. Plucking poultry. McKENDREE, S. W. March 14, 1955 [April 5, 1954], No. 7414/55. Class 28(2) Feathers are plucked out by integral tapering projections 8 of a rubber drum, which is sufficiently elastic so that the projections 8 are pressed flatwise against the drum surface in use. The drum is provided with transverse apertures or bores 9 which increase the elasticity. The drum is clamped on a spindle 3 rotated by the chuck of a portable electric drill or by another drive.
Patent GB-253227-A (GB)
Title: Improvements in bulb-bowls
IPC: A01G9/02
Filed: 1925-03-19
Abstract: 253,227. Johnson, R. C. March 19, 1925. Flowers and plants, receptacles for growing; plants, supporting.-Bulb bowls are provided with sockets integral therewith to receive sticks for supporting plants, the sticks resting on the bottoms of the sockets. A single socket b may be formed in the centre of a bowl, or a series of sockets in the rim of the bowl or in internal or external ribs. The sockets may be made in the filled-in corners of rectangular vessels.
Patent GB-610024-A (GB)
Title: Measuring apparatus for ultra-high frequency energy
IPC: H01Q1/24
Filed: 1945-03-23
Abstract: 610,024. Power meters. PHILCO RADIO & TELEVISION CORPORATION. March 23, 1945, No. 7460. Convention date, Dec. 31, 1943. [Class 37] [Also in Group XL (c)] As shown in Fig. 1, a dipole antenna 15 is supported on a quarter-wave stub 16 carried by a conductor 13 passing through a seal in an evacuated envelope 11. The limbs of the dipole are interconnected by a thin wire 17 such as constantan which is connected by a wire 18 of a different metal such as copper or iron, to a lead 14. The junction of wires 17, 18 forms a thermo couple which is heated by the resulting current through wire 17 when the dipole is placed in an electromagnetic field of suitable ultra-high frequency. The voltage generated by the thermo couple 17, 18 produces a current which is measured by a D.C. microammeter or millivoltmeter 31 connected between conductors 13, 14. The instrument is calibrated from a known source of ultra-high frequency radiation, and is useful in a range within 5 per cent of the resonant frequency of the dipole 15. In order to obtain a satisfactory response over a wider band of frequency the arms of the dipole may be made sectorshaped or conical, Figs. 2, 3 (not shown). In a modification, Fig. 4, the dipole is replaced by a split wave-guide stub 39, 40 closed at one end. The thermo couple 45 is connected between the upper part of section 39 and the lower part of section 40.
Patent GB-695904-A (GB)
Title: Improvements in devices for manufacturing flexible containers from synthetic plasticmaterials
IPC: B29C45/26
Filed: 1951-03-30
Abstract: 695,904. Injection-moulding flexible containers. UNITUBO SOC. ANON. March 30, 1951 [March 31, 1950], No. 7472/51. Class 87 (ii). The mould comprises a cap 4 which forms the exteriorly-screw-threaded container neck 1, a cylinder 5 which is. a friction fit in the lower end of the cap, and a core 7 having a pedestal-like base 9. The core has an axial bore 10 which receives cooling liquid. The mould is pressed against the injection nozzle 17 by means of a push-rod 12 having a centering projection 11 which engages the core bore 10. The neck 31 of the core has projections 14 which centre the core and form openings in the head of the flexible container. The mould is housed in a heating member 22 mounted on a tubular member 16. The injection cylinder 18 has a heating member 19. When the container has been moulded (e.g. from polyethylene) as shown, and cooled by liquid introduced into bore 10, injection plunger 20 rises and the rod 12 falls. The mould and core comes to rest on a plate 26, and the cap is separated from the cylinder and unscrewed from the container, The cylinder 5 may be replaced by a plurality of cylinders arranged in interengaging end-to-end relationship. A plurality of moulds may be mounted on a revolving plate which presents them successively beneath the injection nozzle.
Patent GB-300857-A (GB)
Title: Fastenings for sewing machine cases
IPC: D05B77/00
Filed: 1928-03-13
Abstract: 300,857. Fairweather, W., (Singer Manufacturing Co.). March 13, 1928. Hook fastenings; locks, square-key and like; stud-and-slot fastenings. - Fastening means for the cover 2 of a sewing machine by which the machine may be safely carried comprise a T- headed member the head 5 of which is passed by a vertical movement through the long portion 8 of a slot in a plate 7 with depending terminal guide-pieces 10, and the shank 4 is then engaged by a horizontal movement, in a shorter lateral portion 9 of the slot from which withdrawal in a vertical direction is prevented by the shoulders 6. The horizontal movement brings two hookshaped sliding bolts 17 of a key operated locking device 15 into register with a slot in a plate 13. The bolts pass vertically through the slot and are moved outwards to engage behind plate 13, or inwards to effect release, by a key-operated disc 18 having cam-slots 19 engaging pins 20 on the bolts. Member 4, 5 is secured to one end or side of the cover and device 15 to the other, the co-operating plates 7, 13 being secured to the base 1. When the bolts 17 are shot both fastenings are secured against release.
Patent GB-452223-A (GB)
Title: Improvements in steam distributing pipe systems
IPC: F22B37/14
Filed: 1935-03-12
Abstract: 452,223. Engine steam supply. WITKOWITZER BERGBAU-UND EISENHUTTENGEWERKSCHAFT, and METZNER, O., Mõhrisch-Ostrau, Czecho Slovakia. March 12, 1935, No. 7713. Convention date, March 21, 1934. [Classes 110 (iii) and 122 (iii)] To prevent cooling of parts of a steam main 3, e.g. when some boilers of a battery 1 are not in use, the ends of the main are con. nected either to the supply pipes 2 or to the discharge pipes 4 by a pipe 7 and leads 8 of smaller diameter thereby ensuring a continuous circulation of steam. Valves 9 in the leads 8 may be used when warming the pipes 4 and turbines 5 and for byepassing the shut-off valves 6 at starting. Valves 10 which allow a small leakage of steam when in the closed position are placed between the ends of main 3 and the leads 8, the valve adjacent the portion of the main carrying the main volume of steam being closed. When a battery of boilers are connected by a U main, Fig. 3, the blind ends of the main are connected by pipe 7 to a constricted portion 11 of the discharge 4.
Patent GB-1255581-A (GB)
Title: Polythene compositions
IPC: H01B3/44
Filed: 1970-02-18
Abstract: 1,255,581. Polyolefin compositions. IMPERIAL CHEMICAL INDUSTRIES OF AUSTRALIA & NEW ZEALAND Ltd. 18 Feb., 1970 [20 Feb., 1969], No. 7789/70. Heading C3P. Thermoplastic compositions comprise (1) a major proportion by weight of low density polyethylene having a density of 0.914 to less than 0.930 g/c.c. and a melt flow index of 0.05 to 10.0, (2) 5 to 15 weight per cent of high density polyethylene having a density of 0.930 to 0.97 g/c.c. and a melt flow index of 0À1 to 10À0 and made with a catalyst comprising a transition metal compound and (3) 1 to 5 weight per cent of isotactic polypropylene. The high density polyethylene may be a homopolymer or copolymer with higher olefins such as propylene and butene. The compositions may also comprise conventional ingredients, e.g. pigments, and may be used for insulating electrical conductors by extrusion coating.
Patent GB-976619-A (GB)
Title: Improvements in or relating to photo-emissive devices
Inventor: STANLEY VINCENT ARTHUR
IPC: H01J43/08
Filed: 1960-03-05
Abstract: 976,619. Electron multipliers. ELECTRIC & MUSICAL INDUSTRIES Ltd. Feb. 24, 1961 [March 5, 1960], No. 7867/60. Heading H1D. A photo-emissive device has a photo-emissive cathode 3, a receiving electrode for electrons, a surface 17 around the path of electrons from the cathode to the receiving electrode capable of emitting electrons which give rise to dark current, and a foraminated electrode 22 substantially co-extensive with the surface and disposed in the path from the surface to the receiving electrode but not substantially in the path of electrons from the cathode to the receiving electrode so that the flow of dark current from the surface to the receiving electrode is reduced. The foraminated electrode, which may be a wire mesh, may be maintained at the potential of the surface 17, and it may be attached to the surface by stand-off wires. Alternatively, the electrode and surface may be made of differing metals so that a contact potential difference may be established between them, the foraminated electrode being negative with respect to the surface. The receiving electrode may be the first dynode 10 of an electron multiplier.
Patent GB-913725-A (GB)
Title: Automatic strip guide and centering device
IPC: B21B39/14
Filed: 1961-03-03
Abstract: 913,725. Guiding webs transversely. JENKINS, R. G. E. (Abbey Etna Machine Co.). March 3, 1961, No. 7879/61. Class 100 (1). [Also in Group XXXV] In an automatic control system for a machine, wherein a web 5 is advanced to slitting device 13, the lateral displacement of the web is sensed by edge rollers 15 connected by rigid arms 14, 23 to a bell-crank lever 17. Pivotal movement of the lever 17 outside of predetermined limits causes the selective actuation of switches 30, 31 to energize a motor 32 so as to correct the lateral displacement by driving a screw-shaft 33 to position disc-like rollers 34. Adjustment for the width of the web 5 is effected by varying the distance apart of the attachment points of arms 14, 23 to the lever 17, Fig. 3, not shown.
Patent GB-550179-A (GB)
Title: Improvements in and relating to steam generators
IPC: F22B33/14
Filed: 1941-06-23
Abstract: 550,179. Compound steam boilers. SANDERS, G. June 23, 1941, No. 7883. [Class 123 (ii)] Steam is withdrawn from a boiler a and compressed by an injector h supplied with steam from a high-pressure water-tube section e arranged around the walls of the combustion chamber. The high pressure section is fed with water from the main boiler by a pump b.
Patent GB-185775-A (GB)
Title: Improvements in oscillating valve relays
IPC: H04L27/06
Filed: 1921-03-12
Abstract: 185,775. Mathieu, G. A. March 12, 1921. Thermionic amplifiers and detectors.-High frequency oscillations to be detected are applied to the grid circuit of a back-coupled thermionic valve, which is unable to oscillate unless aided by the incoming oscillations owing to its circuits being coupled to an energy-absorbing circuit which does not form part of the circuit of the valve. The valve thus oscillates only during the receipt of signals, and these are recorded by rectifying the resultant oscillations and causing the rectified current to operate a marking and spacing relay. In the arrangement shown in Fig. 1, the receiving-circuit is coupled through an energy-absorbing circuit B to the tuned grid circuit C of a valve V<1>. The plate circuit of this valve is back-coupled to the grid circuit C, but the valve normally does not oscillate, owing to energy being withdrawn by the circuit B. Incoming oscillations, however, cause the valve to oscillate so long as they persist, and the resulting oscillations are applied through a transformer to the grid of a rectifying-valve V<2>. The plate circuit of the rectifier includes a resistance R shunted by a condenser c, and the voltage across the resistance is applied to the grids of two valves V<3>, V<4> which have their filaments connected to the mid-point of the resistance. The plate circuits of the valves V<3>, V' include coils D, D' controlling the contact of a spacing and marking relay. When a signal is received, the direct component of the plate current of the rectifier V' increases, making the grid of the valve V' more positive and the grid of valve V<3> more negative than normally, relatively to the filaments. Thus more current flows through the coil D' and less through the coil D. A condenser c' shunted across both coils D, D' is stated to reduce the effects of atmospherics. The valve V' and the upper part of the resistance R may be omitted when using waves of a length below 2,000 metres. For very short waves, the back coupling of the valve V' may be capacitative. In a modification shown in Fig. 2, the receiving-circuit A is inductively coupled to the grid circuit C and the energy-withdrawing circuit B is coupled to the plate circuit of the valve V<1>. The circuit B is connected across the filament and outer grid of a valve V with two grids. The plate circuit of this valve includes the coil D' of the relay, and the other coil D is in a circuit connecting the inner grid and the filament. When the received energy sets the valve V<1> in oscillation, the outer grid of the valve V receives an oscillating potential, and the direct component of the plate current increases. At the same time the direct component of the current flowing to the inner grid diminishes. The current through the coil D when no signals are being received is controlled by a battery and resistance E. Condensers c<2> bypass oscillatory currents, and currents due to atmospherics, around the coils D, D'.
Patent GB-1136180-A (GB)
Title: Improvements in devices for crimping marginal portions of wraps on cylindrical objects
IPC: B65B25/14
Filed: 1967-02-20
Abstract: 1,136,180. Wrapping paper &c. rolls. VALMET OY. 20 Feb., 1967 [19 Feb., 1966], No. 7906/67. Heading B8C. A machine for folding in and crimping projecting ends of a wrapper to enclose a cylindrical article, e.g. a paper roll, and of the type which rotates the article while supporting it on rollers, includes one or more folding elements on each crimping head and a fold pressing or consolidating member, the latter being mounted for adjustment in the plane of the article and to vary the amount of fold overlap. The article, a roll 3, is supported on driven rollers 1, 2. Each crimping head includes a rotatable mmeber 21 from which project diametrically opposed folding elements 8, 9. The pressing member 7 is rotatable in a housing 12 which is angularly adjustable about the axis of the roller 1. Movement of the crimping heads towards the roll is controlled by a feeler 17 on one of the members 7, the housings 12 being movable simultaneously by a lead screw. Adjustments, which comprise those necessary for variations of wrapping material, include that of the distance between the members 7 and the folders 8, 9, the projected length of the feeler 17, the angular position of each member 7, relative to the folders about its own axis and the relative speeds of the folders and the drive rollers. The roll may have protective end discs applied prior to folding in of the wrapper ends and further discs adhesively secured to the folds to finish the package (not shown).
Patent GB-413611-A (GB)
Title: Improvements in or relating to pattern plates for casting metals
IPC: B22C7/04
Filed: 1934-03-13
Abstract: 413,611. Pattern plates. MELTON, A., 5, Grappenhall Road, Latchford, Lancashire. March 13, 1934, No. 7912. [Class 83 (i).] A pattern plate for casting pipes is made in two parts, the part 1 being cast while the part 2 is built up. The part 1 for the socket has lugs on opposite sides of an axial plane perpendicular to the plate 3<1> and receives an extension 7 of part 2 which comprises a plate 3 sandwiched between pattern halves 4, 5. Locating projections 9, 10 and lugs 11 are provided.
Patent GB-1452178-A (GB)
Title: Pulse generator
IPC: H03K5/13
Filed: 1974-02-21
Abstract: 1452178 Pulse generating circuits MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 21 Feb 1974 [26 Feb 1973] 7973/74 Heading H3T In a pulse generator comprising first means 31, 32, Fig. 5, for producing a voltage Va, Fig. 2, exponentially increasing or decreasing in magnitude at a first rate and second means 34, 35 for producing a unidirectional pulsating voltage voltage Vb increasing exponentially at a second rate higher than the first rate a solid state switch 37 is coupled to the first and second means for generating a series of output pulses on the coincidence of the same amplitudes of the exponential voltage Va and pulses Vb. As shown in Fig. 5 a switch 42 is normally closed to discharge a capacitor 32. A step voltage E is applied to 64a and a periodic pulse input E is applied to 65. The charging time constant of R31 and C32 is longer than that of R34 and C35 so that when switch 42 is opened to allow the capacitor 32 to charge a slower rising exponential voltage Va occurs across C32 than the exponential voltage Vb across C35. When the exponential voltages Va, Vb are equal a SCR 37 conducts to discharge C35 and produce an output pulse across a load resistor 36 at a time t 2  after the leading edge of the associated input pulse at 65. The capacitor C35 now recharges and the above is repeated to produce output pulses of increasing delay t 2  after the leading edge of the associated input pulse at 65. The load resistor 36 alternatively may be connected in the cathode circuit of the SCR. A constant or reference phase circuit 60 may be provided which generates an output pulse a time determined by an adjustable resistor 61 after the leading edge of an associated input pulse at 65. When the output pulse from the circuit 10 corresponds to the delay t 2  set by the reference phase circuit 60 an AND circuit 71, 72, 73 is enabled on coincidence of output pulses from 10 and 60 to make a normally conductive transistor 73 turn off. In a modified circuit Fig. 4 a capacitor 43 is rapidly charged by periodic pulses applied at 41a and when switch 45 is operated to the b position the capacitor 43 discharges via a resistor 44. The resistor 44 and capacitor 43 form a delay element having a greater delay than provided by a second delay element formed by 46 and 47 so that output pulses are generated by a PNPN transistor 48 across a load 49.
Patent GB-338834-A (GB)
Title: Improvements in wheels and axles for trucks or the like
IPC: B60B37/10
Filed: 1930-03-12
Abstract: 338,834. Compagnie Generale de Construction. March 15, 1929, [Convention date]. Hubs.-The hub 2 of a truck or other wheel is formed with a closed rounded end 3 abutting the rounded end 6 of the axle, 5, and is secured by means of discs or segments 12 engaging registering grooves 8, 11 in the axle and hub. The discs &c. 12 are assembled through an opening in the hub which is closed by a filling-piece 13.
Patent GB-628650-A (GB)
Title: Method and material for the production of toy balloons
IPC: A63H27/10
Filed: 1947-03-25
Abstract: Balloons of polyvinyl acetate are produced by first forming a viscous plastic mass with the aid of a volatile solvent, a lump of this mass being placed on the end of a tube and blown by passage of air or other gas down the tube to form a spherical film or balloon, the tube being removed by a twisting movement sealing the balloon.  Suitable material comprises 65-75 per cent polyvinyl acetate and 35-25 per cent acetone.  Other suitable solvents are alcohol and benzene.  A wall of uniform thickness is obtained owing to the thinner portions losing the solvent more readily by evaporation, the thicker portions continuing to expand. Colouring matters and fillers may be incorporated in the composition.  The Specification as open to inspection under Sect. 91 refers to the use of highly polymeric plastic substances which form viscous masses when treated with a solvent.  This subject-matter does not appear in the Specification as accepted.
Patent GB-130297-A (GB)
Title: Improvements in or relating to Nozzles for Casting Ladles.
IPC: B22D41/50
Filed: 1919-03-31
Abstract: 130,297. Williams, T., and South Durham Steel & Iron Co. March 31, 1919. Foundry ladles. - A nozzle for a metal-pouring ladle is made with two or more bends c, to reduce the velocity of the metal entering the mould.
Patent GB-192957-A (GB)
Title: Improvements in or relating to puttying devices
IPC: B05C17/005
Filed: 1922-03-20
Abstract: 192,957. Coffin, V. W. J. March 20, 1922. Tools for applying cements and the like.-A puttying device comprises a putty-containing cylinder 1, the cover 6 of which has a slot 5 for the passage of the putty and carries an adjustable guide 14 adapted to engage the face of the window frame 21 while the edge 6<x> of the cover 6 engages the pane 22. The guide 14 is integral with a plate 10 having upturned ends 9 engaging between lugs 7 on the cover 6 and secured thereto by a cross bolt 15 passing through slots 13 in the ends 9. The putty is forced out of the cylinder by a hand operated piston 18.
Patent GB-609847-A (GB)
Title: New or improved infinitely variable change speed gearing
IPC: F16H29/08
Filed: 1946-03-15
Abstract: 609,847. Fluid-pressure servomotor-control systems. DIXON, K. R. March 15, 1946, No. 8145. [Class 135) [Also in Group XXIV] The transmission ratio of a variable-speed ratchet gearing (see Group XXIV) is varied automatically in accordance with the torque on, and/or the speed of, the driving shaft a. The shaft a is provided with a resilient coupling comprising springs s between driving and driven discs q, u, the former carrying centrifugal weights v and actuating a further valve disc x relative to the disc u in accordance with both speed and torque. This relative movement brings recesses 2 or 3 in the face of disc x into communication between a fluid-pressure supply port 10 in disc u and either of ports 9 and 11 connected to pipes 16 and 17 leading respectively to the two sides of a piston o which effects an adjustment of the gear ratio. The ports 9, 10 and 11 co-operate through annular grooves 6, 7 and 8 with ports 13, 14 and 15 in a fixed member 18.
Patent GB-144987-A (GB)
Title: Improvements in ball cages for axial thrust ball bearings
IPC: F16C33/42
Filed: 1920-03-19
Abstract: 144,987. Danielsson, A. March 19, 1920. Ball bearings.-A ball-cage for axial-thrust bearings comprises an outer ring 1, provided at suitable intervals with bosses forming spherical recesses 2 suited to fit the balls 3, and an inner ring 5 having a circumferential ball race 4. The inner ring may be forced down inside the balls 3, or may be divided to facilitate the assembling.
Patent GB-646308-A (GB)
Title: Improvements relating to heads of dolls, model animals and like toy figures
IPC: A63H3/40
Filed: 1948-03-22
Abstract: 646,308. Dolls' heads and eyes. RATCLIFF, G. R. March 22, 1948, No. 8405. [Class 132 (iii)] The head of a doll or the like has a "sleeping eye" assemblage which comprises, Fig. 3, a bridge member 10 with a portion 12 acting as a depth stop, and eyeballs 16 permanently orientated on a rod 18 by an arm 21 of a pendulum member (not shown) engaging slots in the eyeballs. The assemblage is mounted in the doll's head by sliding the bridge member 10 into preformed grooves 32 in the face half 30 and then applying the rear half of the head which maintains the assemblage in its fully forward position. Modifications to the bridge and pendulum member are illustrated in Figs. 4 to 9 (not shown).