baber/WOPTO huggingface dataset:
Patent GB-171840-A (GB)
Title: Improvements in fasteners for windows or the like
IPC: E05C3/04
Filed: 1920-09-21
Abstract: 171,840. Kings Patent Agency, Ltd., (Meredith, A. W.). Sept. 21, 1920. Sash and like fasteners, pivoted-arm type; hook fastenings. - A fastener for windows &c. comprises two hooked plates d, d<1> pivoted at e on a plate f on one sash and adapted to engage round a pin c riveted to a plate a on the other sash. A split spring washer m placed under the head of the pivot pin e keeps the plates d, d<1> in any position, a central projection l on the plate f serving as a stop against which the handles h abut when in the open position. Alternately, the handles h may be secured in the open position by being pressed over and secured between raised parts of a flat spring projecting through slots in the plate f.
Patent GB-249176-A (GB)
Title: An improved device for use in covered railway vans for loading and unloading packages
IPC: B65D6/18
Filed: 1924-11-11
Abstract: 249,176. Amsler, A., and Ewak Akt.-Ges. Nov. 11, 1924. Folding and collapsable vehicles.-A collapsable wheeled receptacle into which parcels are loaded promiscuously, comprises two opposite flexiblymovable interrupted walls adapted to be joined together above the loaded packages to bind them together and also carry the lifting-hook. In the illustrated form, the receptacle comprises a wheeled base member to each side of which are secured four ropes 3 connected by laths 4, to form a pair of flexihle openwork sides. During the filling operation, eyes at the ends of the top bars 4 are engaged by corner bars 5 stuck temporarily in holes in the base to keep the sides upright. When filled, the middle ropes 3 are drawn together by means of a strap 7. The corner bars are then utilized to form end walls to. the receptacle by engaging them with the eyes at the ends of th bars 4. A spring snap-fastening on the ends of the corner bars prevents disengagement until it is positively released.
Patent GB-758834-A (GB)
Title: Improvements in or relating to electrical discharge devices
Inventor: HAGEN GLENN EDWARD
IPC: H01J17/00
Filed: 1953-10-02
Abstract: 758,834. Cold-cathode tubes; discharge lamps. NORTHROP AIRCRAFT, Inc. Oct. 2, 1953, No. 27059/53. Class 39 (1). [Also in Group XL (c)] A cold cathode glow tube switch or flip-flop includes three electrodes, an anode having on each side of a cathode, and a filling comprising a noble gas such as helium at a pressure of 100 to 250 mms. mixed with from 1 to 5 per cent by volume of a polyatomic gas such as hydrogen, nitrogen, oxygen, ammonia, carbon dioxide, hydrogen chloride or water vapour. In the construction shown in the drawing a central wire anode 4 has on either side a wire cathode 7, 8, the electrodes being made of platinum or " Kovar " (Registered Trade Mark). The electrode wires pass through the tube 2 as leads 6, 9, 10, which are connected to a source of potential 11 through resistors 7a, 8a and 12. An input line 14 is connected to the junction J of the resistors 7a, 8a and 12 through a capacity 14a. Output circuits 15 and 16 each containing a blocking condenser 17 are respectively connected to the cathode leads 9 and 10. A condenser 18 connects the cathode circuits.
Patent GB-961332-A (GB)
Title: Method and device for the automatic dosage of liquids
IPC: B01L99/00
Filed: 1961-07-26
Abstract: 961,332. Raising liquids. C K D DUKLA, NARODNI PODNIK. July 26, 1961 [July 27, 1960], No. 27154/61. Heading FIR. In a method and device utilizing pneumatic suction or pressure impulses for dispensing a liquid at a controlled rate, a pipette 1 is filled from a reservoir 6 either by gravity, or by the suction part of a pneumatic impulse acting via a pipe 8, Fig. 1, and is discharged through a liquid trap 2 either by the pressure part of the impulse or by gravity, respectively, the pipette being located either below or above the reservoir. The pneumatic suction and pressure impulses may be produced by a reciprocating diaphragm 9. Volume changes in the system, due to entrained gases or temperature changes, are corrected either by a liquid trap 11 or by a constricted opening to atmosphere. The diaphragms of two devices may be operated by a common eccentric. In the embodiment of Fig. 3, for dispensing two liquids, two devices discharge into a container 16, one via a siphon 14, the two liquids then passing through a tube 19 via a siphon 17. Pneumatic impulses produced by liquid passing an inclined tube in tube 19 serve to actuate the second device via a liquid trap 20. The level of the second liquid in a reservoir 22 is maintained constant relative to the second device by supporting reservoir 22 on a float 23 in a constant-level reservoir, the float and reservoirs being suitably dimensioned. A floating cover 28 may be provided. In an embodiment for producing impulses, Fig. 4, a tube 29 is connected to a pipette and to an intermittently or constantly filled siphon 30, the capacities of the siphon and tube 29 being varied by rings 31 and 32. Specifications 720,161 and 793,828 are referred to.
Patent GB-775533-A (GB)
Title: Improvements in and relating to hand brakes for motor vehicles, more particularly lorries and omnibuses
IPC: B60T13/10
Filed: 1955-09-23
Abstract: 775,533. Vehicle handbrakes. MASCHINENFABRIK AUGSBERG-NURNBERGAKTGES. Sept. 23, 1955 [Sept. 30, 1954], No. 27165/55. Class 103 (1). In a spring servo-operated handbrake, particularly for lorries and omnibuses, it is arranged that the release of the hand lever locking pawl 17 and the movement of the pawl 18 from its position shown in Fig. 3 to that in Fig. 5, causes spring operation of a valve 29 which opens to atmosphere the space below a diaphragm 39 in a valve chamber at one end of the spring servo-cylinder. The diaphragm is thus flexed upwardly by the fluid pressure holding off the brake in the space 44 to the left of piston 46, thus shutting off the supply port 33 and allowing air in the cylinder to escape through port 40. Slack in the brake rigging is thus quickly taken up by the expansion of main springs 53, 55 and the brake may be fully applied by a single movement of the hand lever 2. Air is also released from the right to piston 63 which is moved to the right by springs 65 so that balls 68 leave a groove 67 and the rod 67 is effectively locked to the sleeve 59.
Patent GB-533532-A (GB)
Title: An improved method of joining electric cables
IPC: H02G15/00
Filed: 1939-10-06
Abstract: 533,532. Cable joints. LAKE, Ltd., E., and PARKER, E. E. Oct. 6, 1939, No. 27315. [Class 38 (i)] The joints of multi-core cables are insulated by wrapping each joint C1...C4 with sheet insulation and fabric D1, D2, applying to the wrapped joints shaped pieces of plastic material E, and moulding this about the joints by heat and/or pressure in a mould. The sheets D1, D2 may be of fabric-backed rubber and the joints are wrapped in pairs each sheet D1, D2 forming a figure of 8 about one pair. The material E may be rubber which is vulcanized in the mould so as to unite with the sheets D1, D2 and with the ends of the cable sheath or a wrapping thereon.
Patent GB-1060929-A (GB)
Title: High-speed pushbutton-controlled overload circuit breaker
IPC: H01H73/44
Filed: 1965-06-28
Abstract: 1,060,929. Automatic circuit - breakers. ELLENBERGER & POENSGEN G.m.b.H. June 28, 1965 [June 30, 1964], No. 27346/65. Heading H2B. A push - button - operated, trip - free, overload - responsive, electromagneticallyreleased circuit-breaker has a bridging contact 18 carried by an angular bracket 17 for pivotal and slidable motion, a locking pawl 36 for the bracket and a locking lever 41 for the pawl. When overload occurs, an electromagnet 49 attracts an armature 51 which turns the lever 41 to release the pawl 36. This pawl turns anticlockwise about its pivot 37 to release thebracket 17 so that springs 35, 77 move the bridging contact 18 and push-button 11 to the " off " position, the bracket 17 opening the contacts 18 ... 20 and changing over bridging signal contacts 69. The bracket now abuts an inclined surface 79 in the casing 1 so as to bring an aperture 15 in the bracket into the path of movemsnt, of a detent 14 carried by the pushbutton 11. Thus when the button is depressed to reclose the circuit-breaker, the detent 14 engages in the aperture 15 to move the bracket 17 downwardly. The bracket 17 engages a projection 39 on the pawl 36 and resets the pawl, so permitting an adjustable spring 43 to reset the lever 41. When the pressure on the push-button is released, the bracket 17 is released and pivots about the pawl 36 to close the contacts 18. . . 20. The circuit-breaker may be tripped open by pulling the button 11 upwardly so that a lever 29 pivoted on the button acts on a projection 30 on lever 31 to turn the lever 31 anticlockwise. The lever 31 turns the armature 51 to trip the circuitbreaker.
Patent GB-603354-A (GB)
Title: Piezo-electric devices
IPC: G10K9/122
Filed: 1945-10-18
Abstract: 603,354. Sound emitting and receiving devices. TIBBETTS, G. C. Oct. 18, 1945, No. 27372. [Class 40 (iv)] [Also in Group XL (c)] A piezo-electric device comprises a slab which expands in one flatwise direction when subjected to electrostatic forces, a flexible member extending along one side of the device and means interconnecting the slab and member at the periphery of the slab, the member being arched in said direction so that it tends to straighten when the slab expands, The crystal element 1 comprises a plate of Rochelle salt cut with its major plane at right angles to the electric axis and the major edges parallel to the optic and mechanical axes. The element 1 thus expands and contracts along its diagonals. The element is provided on its major faces with electrode foils and lead extensions 3 and is then cemented at the periphery to two diaphragms 4 arranged on on each surface. The diaphragms are made of material having a good modulus of elasticity and a coefficient of expansion the same as Rochelle salt, such as synthetic resin with or without metal powder amber or special metallic alloy. Each diaphragm is thickened peripherally at the one pair of opposite corners 6 so that one diagonal of the diaphragm is arched away from the crystal plate and the other diagonal is arched towards the crystal, as shown in the two diagonal sections, Figs. 5 and 6. Since due to piezo-electric effect, one diagonal of the crystal expands when the other diagonal contracts, this form of diaphragm gives the desired mechanical coupling to the crystal. In the form shown in Figs. 5 and 6, the diaphragms are intended to move simultaneously towards or away from the crystal. In Fig. 9, the diaphragms 4 move simultaneously in the same direction, being connected to a rod. 7 passing through the crystal. Thus one of the diaphragms is turned through 90 degrees relative to the other so that they both operate on the crystal in the same sense. The rod 7 may be connected to a phonograph stylus, a microphone diaphragm or a sound reproducing diaphragm. The device is mounted on rubber feet 10. Fig. 11 shows a unit 1, 4 as in Fig. 5 mounted between two microphone diaphragms 9 and actuated by rods 11. Alternatively, the lower diaphragm 9 may be omitted in which case the unit is mounted between an upper diaphragm and the bottom of a cup-shaped casing, Figs. 12 and 13 (not shown). This modification may be used as a hearing aid. Fig. 17 shows two identical units 34 as in Fig. 5 turned through 90 degrees with respect to each other about the vertical axis, and supported from posts 32 by gauze rings 36. The units are connected so that the output voltages produced by sound waves are additive. Then voltages due to mechanical shocks tend to cancel out, The units may have a circular periphery, Figs. 14, 15 (not shown), and may be waterproofed by coating with cellulose nitrate and then with polystyrene.
Patent GB-1469980-A (GB)
Title: Junction field effect transistor switch
IPC: H01L29/45
Filed: 1974-06-20
Abstract: 1469980 Semi-conductor devices RCA CORPORATION 20 June 1974 [22 June 1973] 27394/74 Heading H1K A JFET for use as a switch at microwave frequencies comprises a substrate 32 of first conductivity type with a resistivity of at least substantially 10<SP>4</SP> ohm-cm. a layer 34 of second conducitivity type having a sheet resistivity of less than 2000 ohm/square and an impurity concentration less than that of the substrate, at least two ohmic contacts 38, 40 on the layer 34 and a metallic contact 50 on the substrate. In a preferred embodiment the substrate 32 is GaAs doped with an acceptor from the group Cr, Fe, Ni and Co and is at least one order of magnitude thicker than the layer 34 which is epitaxially grown thereon. The switching voltage required to deplete the layer 34 is applied between the contact 50 and one of the contacts 38, 40 so that the switched signal flows between the contacts 38, 40 via free carriers in the layer 34. The contacts 38, 40 are interdigitated and spaced so that the sheet resistivity of the layer 34 provides a 1 ohm resistance between them. The impurity concentration of the substrate 32 is 4 Î 10<SP>16</SP> atoms/cm.<SP>3</SP> and that of the layer 34 is 10<SP>16</SP> atoms/cm.<SP>3</SP>. The contacts 38, 40 include highly doped regions 42, 44 and metallic electrodes 46, 48.
Patent GB-361470-A (GB)
Title: Improvements in and relating to scanning discs for use in conjunction with television and like apparatus
IPC: H04N3/04
Filed: 1930-09-13
Abstract: 361,470. Television. BATSTONE, L. F., 20, Bruce Castle Road, Lordship Lane, and HOGBEN, B. T., 272, High Road, both in Tottenham, London. Sept. 13, 1930, No. 27417. [Class 40 (iii).] A scanning disc 1 has apertures 2 arranged in a spiral of two or more turns and co-operates with a second disc 8 formed with a slot 9, so that apertures not in action are blocked. The disc 8 performs two or more revolutions for each revolution of the disc 1. The ends 10, 11 of the slot 9 taper and overlap so as to prevent the formation of black areas in the reproduced picture. The slot may be wider at one end 11 than at the other end 10. The discs rotate in the same or opposite directions about axes 6, 13, which are non-coincident and are determined by bushes 5, 12, attached to the discs by screws. The disc 8 may be considerably smaller than the disc 1, Fig. 4 (not shown), and the slot 9 is then made wider. Parts of the discs may be cut away to reduce weight. According to the Provisional Specification the discs may be made of papier mÔchÚ instead of metal and lenses may be used instead of simple apertures.
Patent GB-432934-A (GB)
Title: Improvements in universal joints for transmitting rotary movements
IPC: F16D3/30
Filed: 1934-09-24
Abstract: 432,934. Universal joints. MOCHET, E. P., and MOCHET, G. C., 68, Rue Roque de Fillol, Puteaux, Seine, France. Sept. 24, 1934, No. 27417. Convention date, Dec. 8, 1933. [Class 80 (ii)] [See also Group XXXI] A simple Hooke's joint is adapted to yield approximately synchronous drive over a limited range of half-a-revolution, between inclined shafts A, B, the axes of. which are fixed in space, by displacing one of the shafts A from the axis of symmetry with respect to its fork C, so that the coupling cross E lies in the bisectorplane G of the angle between the shafts, when the latter are in the mid-position of their limited range of movement. As applied to steering a horizontal bicycle, the joint E is arranged between a steering-column B<1> and front-fork A<1>.
Patent GB-603366-A (GB)
Title: A process of extracting iron from iron silicates or iron ores containing silica
Inventor: STUB TOLLEF
IPC: C21B5/00
Filed: 1945-10-18
Abstract: In a process for extracting iron from iron silicate or iron ores containing silica, in which iron oxide is reduced to iron, the starting material is first subjected to treatment consisting in heating a finely divided mixture of the starting material with a base-forming material such as a compound of calcium or magnesium, the said treatment taking place in an oxidising atmosphere at temperatures above 750 DEG  C. and below the temperature at which the pores of the sinter thus produced become substantially closed by melting, for example, about 1300 DEG  C. Thus, the silica of the starting material combines with the base-forming compound yielding a silicate and a sinter is formed in which the iron is present as maghemite and magnetite.ALSO:A process of extracting iron from iron silicates, or iron ores containing silica, in which the iron oxide is reduced to iron after the starting material has first been subjected to a treatment consisting in heating a finely divided mixture of the starting material with a base forming material such as a compound of lime or magnesium, the said treatment, which is effected before the step of magnetic separation where such is employed, taking place in an oxidising atmosphere at temperatures above 750 DEG C. and below the temperature at which the pores of the sinter thus produced become substantially closed by melting, with the result that the silica of the starting material combines with the base forming compound yielding a silicate, and forming a sinter in which the iron is present as oxide.  Preheating is preferably carried out at a temperature of about 1300 DEG C.
Patent GB-1095903-A (GB)
Title: Production of oriented silicon-iron
IPC: C21D1/78
Filed: 1965-06-29
Abstract: Cube-on-edge oriented silicon-iron stock for magnetic uses, containing e.g. 2-3.5% Si, 0.04-0.15% Mn and e.g. 0.025% C with balance Fe and impurities, is produced by hot reducing the stock e.g. from 2100 to 2550 DEG F., removing the scales, e.g. by pickling after annealing at 1675 or 1800 DEG F., cold rolling to final gauge, and subjecting it to a final anneal consisting of a primary grain growth stage e.g. at 1000-1800 DEG F. and a secondary grain growth stage e.g. at 1700-2200 DEG F, wherein S, Se or a compound thereof is provided as a grain growth inhibitor to diffuse into the grain boundaries of the stock during the primary grain growth stage to favour growth of cube-on-edge oriented nuclei during the secondary grain growth stage.  Preferably the S content of the stock is raised by 0.0005-0.003% when its temperature has reached 1800 DEG F. in the final anneal.  Annealing is preferably effected in dry H2 containing at least 700 ppm. H2S, or other S-containing gas such as SO2 or SF6. Prior to the final anneal, the stock may be decarburized e.g. at 1500 DEG F. in wet H2 or the S compound may be contained in a decarburizing atmosphere during the final anneal to form a layer of FeS on the surface of the stock.  Annealing may be effected using a vacuum or an inert gas atmosphere e.g. N2, with or without H2, and with the stock as stacked sheets or loose wound coils using a refractory annealing separator, e.g. of MgO, Al2O3 and/or CaO or TiO2, containing 1/2 -10% elemental S (equivalent to 0.0025-0.05% S based on the weight of stock); alternatively, 0.1-1% FeS based on the weight of stock may be added to the separator.
Patent GB-391812-A (GB)
Title: Apparatus for delivering and measuring liquids, such as fuels and lubricating oil
IPC: B67D7/64
Filed: 1931-11-03
Abstract: 391,812. Liquid meters. HURLBRINK, E., 18, Bayernallee, Westend, Berlin. Nov. 3, 1931, No. 27656/32. Divided on 385,065. [Class 69 (ii).] The reversal of the distributing valve E of a liquidmeter initiated by the measuring piston B at the end of its stroke is retarded by the provision of a damping member 102 and/or a pin 101 acted on by a spring 104 and the pressure in the supply pipe H. The distributing valve is so formed that it completely closes the supply and/or discharge conduit during the retardation.
Patent GB-1206941-A (GB)
Title: Apparatus for synthesising sine waves
Inventor: THURNELL DUNCAN PHILIP
IPC: G06G7/28
Filed: 1966-06-21
Abstract: 1,206,941. Sinusoidal generators. G. & E. BRADLEY Ltd. 21 Sept., 1967 [21 June, 1966], No. 27755/66. Heading G4G. [Also in Divisions H2 and H4] Apparatus for synthesizing sinusoidal oscillations comprises a source 41 of fundamental oscillation of non-sinusoidal waveform and further sources 42 . . . 44 of oscillations having the same waveform as the fundamental oscillation but having frequencies which are harmonics of the fundamental oscillation and means for so combining the oscillations that the waveform of the output signal approaches a sinusoid. It is shown that if odd harmonics of square waveform and of specified amplitude are subtracted from a fundamental square wave, many of the harmonics of the fundamental square wave become cancelled. The invention is applicable to generation of two quadrature sinusoids at 45, 45<SP>1</SP> so as to produce a circular trace on a cathoderay oscilloscope, the phase difference between the two waves being independent of the frequency. As shown, the output of a source 10 of square waves is applied to a series of frequency dividing chains terminating in bi-stable circuits 41 . . . 44 which provide frequencies f, 3f, 5f and 7f. These are combined in appropriate phase by resistors 23 . . . 26 and a summing amplifier 15 after which residual harmonics are removed by a filter 27. The quadrature sine wave is developed by further bi-stable circuits 41<SP>1</SP>. . .44<SP>1</SP> supplied from the antiphase output of bi-stable circuits 19 . . . 22. In Fig. 3 (not shown) an integrator of specified time constant is interposed between the output of each bi-stable circuit 19 . . . 22 and the summing amplifier, so that a single phase sine wave is produced by adding specified odd harmonic triangular waves (provided by the integrators) to the fundamental triangular wave.
Patent GB-721650-A (GB)
Title: Improvements in or relating to double layer floors
IPC: C04B28/32
Filed: 1952-11-05
Abstract: A mixture for the manufacture of the under layer of double-layer magnesite bond floors consists of fibrous, thread-shaped and granulated materials interspersed with granulated rubber particles, said materials being obtained by tearing of the thread and fabric fillings of fabric filled rubber scrap products such as tyres, bound by magnesite and magnesium chloride lye.  Asbestos fibre, micaceous dust, paper dust, wood powder, asbestos powder, quartz powder, and talc may also be added.  In an example, 1 part of calcined magnesite is added to 8-10 parts of the filled and magnesium chloride lye added to produce a paste.
Patent GB-320512-A (GB)
Title: Improvements in and connected with jacking and/or safety devices for motor road vehicles
IPC: B60S9/04
Filed: 1928-09-28
Abstract: 320,512. Matsumura, K. Sept. 28, 1928. Collision-guards.-Four tip-over jacks adjacent the wheels are adapted to be released from inoperative position either by means of a hand-lever 10 or by a bumper 21; in the latter case the action of the jacks is to stop the vehicle suddenly. Sector-shaped jacks 8, 51 are pivoted to frames 6, 46 located between the road wheels and frame, and are connected to winding drums 12 by cords 32, 45. The drums are fitted with ratchets and pawls, one of the latter being connected with a crank 13 mounted on the lever 10 and the other to the bumper 21. In the event of a collision the bumper is pushed in against the action of a coil spring, the pawl is withdrawn and the jacks fall into operative position, as shown, in which they are retained by chains 42, 56. The rear jacks are pivoted to a rack member 65, Fig. 9, in mesh with a toothed roller g integral with a ratchet wheel 63. The latter is connected to the lever 10 by a rod 70 while a pawl 61 is connected to a second crank 14 on the lever. Thus the rear wheels may be lowered by pulling the crank 14. This having been done, the jacks may be raised by reciprocating the handle 10. The two jacks on one side are connected by a rod 54 which causes the rear wheels to be raised before the front wheels.