baber/WOPTO huggingface dataset:
Patent GB-360815-A (GB)
Title: Improvements in and relating to the manufacture of floor coverings and the like
IPC: D06N1/00
Filed: 1930-05-01
Abstract: 360,815. Floor coverings. IMPERIAL CHEMICAL INDUSTRIES. Ltd., Millbank, WALKER, F. T., Oakwood, Western Avenue, Golders Green, both in London, and HETHERINGTON, A. C., 70, Eglinton Road, Ardrossan, Ayrshire. May 1, 1930, No. 13479. [Class 140.] Printing pastes for use in block printing of linoleum and other floor coverings are made by incorporating a celulose ester or ether, a drying oil and a pigment, together with both medium and high boiling solvents in the absence of low boiling solvents and of low boiling diluents with a substantial proportion of plasticizing or softening substances. The paste is sufficiently slow drying to be used in block printing apparatus, but is considerably less slow drying than oil paint. The paste may comprise a mixture of cellulose ester or ether such as nitrocellulose or benzyl cellulose, drying oils such as linseed oil, with or without the addition of driers, pigment or other colouring material, together with a plasticizer or softener for the cellulose derivative such as tricresyl phosphate, p-toluenesulpharilide, castor oil, &c., a solvent for the cellulose derivative such as butyl lactate, the butyl ether of ethylene glycol, the diethyl ether of glycerol, and inert liquids such as aromatic solvent naphtha, with or without further additions such as natural or synthetic resins, blown castor oil or processed rape seed oil. One example includes nitrocellulose, linseed oil, tricresyl phosphate as a plasticizer, castor oil as a softener, ethyl lactate as a medium boiling solvent, butyl lactate as a high boiling solvent, ester gum as a resin, solvent naphtha as a medium boiling solvent or diluent, and a pigment. A second example includes benzyl cellulose, linseed oil, glycerol ditolyl ether as a plasticizer, ethyl lactate as a medium boiling solvent, glycerol diethyl ether as a high boiling solvent, blown castor oil as a softener, solvent naphtha, and a pigment.
Patent GB-832450-A (GB)
Title: Improvements relating to nesting structures for henfowls and the like
IPC: A01K31/16
Filed: 1958-04-29
Abstract: 832,450. Nesting boxes. TEMPLETON, A.G. Sept. 19, 1958 [April 29, 1958], No. 13529/58. Class 5(2). A nesting box comprises a floor 2 on to which the eggs are laid the floor sloping rearwardly from the entrance 1D of the box and being provided on its upper surface with a layer 5 of resilient material formed with a series of upstanding projections. From the floor 2 the eggs roll through an opening 4 between the floor and the rear wall 3 of the box, on to a reticular tray 8 supported by coil springs 9 and adjustable links 11 and are collected from thence via a hinged door 13. The entrance to the box is provided with a slatted door 14 which may be brought into a horizontal position to form a perch, and a removable dust tray 12 is provided at the base of the box. A hinged flap 17 may be mounted on the rear wall of the box to provide a means of covering the opening 4.
Patent GB-576236-A (GB)
Title: Improvements relating to the driving of piles
IPC: E02D7/28
Filed: 1944-07-17
Abstract: 576,236. Piles. WEST'S PILING & CONSTRUCTION CO., Ltd., and BIRD, A. G. July 17,1944, No. 13630. [Class 68 (ii)] A hollow sectional pile is provided with an inter - nal hollow lining member b, which may also be sectional, the bottom of which contacts the shoe m of the pile and which is provided with an anvil o for receiving the blows of a drop, steam or pneumatic hammer a and transmitting them direct to the shoe. The top of the lining member is formed with a head k which contacts the top of the pile on the descent of the hammer and imparts cushioned blows to the top of the pile. The lining member may serve as a guide for the pile sections and for the hammer. After driving, the liner may be removed and the shoe filled with concrete.
Patent GB-601148-A (GB)
Title: Improvements in or relating to apparatus for generating electrical impulses
IPC: G06F5/01
Filed: 1945-02-15
Abstract: 601,148. Producing electric pulses. NATIONAL CASH REGISTER CO. Feb. 15, 1945, No. 13673/47. Convention date, Dec. 27, 1943. Divided out of 601,122, [Group XIX]. [Class 40 (vi)] [Also in Group XIX] The invention comprises a device for producing electric impulses and is shown as embodied in the multiplying machine described in Specification 601,122 in which the impulses produced by the device represent a multiplier and are each used to cause a second impulse generator to perform a cycle of operation. The device of the present invention has several denominations which are operated in turn. Each denomination consists of ten gas-filled electricdischarge tubes 1 ... 9 connected cathode to grid in sequence so that the firing of any tube can prime the succeeding tube and will extinguish the preceding tube. The cathodes are also connected to a common output conductor 253 from which they are relayed to control the second generator (not shown) as described in Specification 601,122. A delay tube and a byepass tube are provided. The anodes of the byepass tube and of the 1 tube are connected to a first input conductor 375 which receives an initiating impulse and the anodes of delay tube and of the tubes 2 ... 9 are connected to a second input conductor 188. The priming connections between the cathodes and grids are controlled by switch keys 1 ... 9. If no key is depressed, earth is connected through a resistance 4281 to the grid of the byepass tube to prime this tube so that the initiating impulse arriving on line 375 fires the byepass tube instead of the 1 tube. This results in an impulse at a terminal 371 which, as described in Specification 601,122, initiates operation of the next lower denomination of the device. If, however, any key is depressed, earth is removed from the grid of the byepass tube and applied through a resistance 4120 to the grid of the 1 tube so that the initiating impulse on line 375 fires the 1 tube to give an impulse on the common output conductor 253 and also to prime the 2 tube. The next and all following initiating impulses arrive, as described in the said Specification, on the second input conductor 188. These impulses cause the operation in turn of the tubes 2 ... until the tube corresponding to a depressed key, say 4, has been fired. On account of the depressed condition'of this key, the priming potential is applied, not to the 5 tube but to the delay tube, so that this latter fires upon the arrival of the next operating impulse on the input line 188 and so gives an impulse at the output terminal 371 to initiate operation of the next lower denomination of the device. Specifications 592,174 ; 593,682, [Group XIX], and 601,147 also are referred to.
Patent GB-255589-A (GB)
Title: Improvements in or relating to reflectors
IPC: F21V7/09
Filed: 1925-05-26
Abstract: 255,589. Davis, T., and Davis, F. R. May 26, 1925. Reflectors. - A reflector, more particularly applicable for outdoor flood lighting, comprises a comparatively thick plate A of aluminium or other bright metal the inner surface of which is entirely covered with a number of relatively small shallow curved depressions or hollows B practically in contact with each other and each adapted to act as a separate reflecting surface, an opening C being left for an electric lamp bulb or other source of light. The depressions may be punched by a round-ended punch, moulded, pressed or otherwise formed on the plate either during or after its manufacture, and the plate may be polished or burnished and then coated with lacquer or other substance to prevent oxidation or dulling. Reference has been directed by the Comptroller to Specification 9579/87.
Patent GB-217738-A (GB)
Title: An improved electricity measuring instrument for direct currents
IPC: G01R15/00
Filed: 1923-05-24
Abstract: 217,738. Good, W. B. May 24, 1923. Electromagnetic current and pressure meters; sets of resistances; wire and ribbon resistances, enclosed.-In a single moving-coil instrument a switch is provided to vary the values of the shunt and series resistances so that current and voltage may be measured, the operating-handle of the switch having indications thereon which are moved to coincide with a mark on the case to show the value and character of the scale. Fig. 2 is a section of the instrument and Fig. 9 a diagram of connections. The moving coil i', magnet i, shunt resistances k<1>, k<2>, and series resistances j, j<1>, j<2> are arranged in a case h, in which is also mounted the rotary switch comprising six rings each divided into segments with which engage springs e. Fig. 9 shows the switch in the position for measuring currents up to 500 milliamperes. Terminals 1, 2 are employed, a shunt k<1> of 1.5 ohms. being connected across them, and resistances k<2>, j<2> of 13.5 ohms. and 60 ohms. respectively being connected in series with the moving coil i<1>. On rotation through 90‹, the shunt resistances k<1>, k<2> of 1.5 and 13.5 ohms. respectively are connected in series across the terminals 1, 2, the resistance j<2> of 60 ohms. being connected in series with the moving coil. A further rotation of 90‹ connects the resistances j, j<1>, j<2>, having a total resistance of 5,000 ohms., in series with the moving coil and terminals 2, 3, the instrument then reading up to 50 volts. A fourth rotation of the switch through 90‹ short-circuits the resistance j<1> of 4500 ohms. giving a range of 5 volts. Alternatively, the switch contacts may be arranged on a flat surface across which a slide moves, or on a flat rotating surface moving under a fixed radial arm carrying the other contacts. To increase the voltage range, one or more resistance coils as shown in Fig. 4 may be screwed on to terminal 3. The resistance coil is encased in an insulating sheath o having terminals o<2>, o<3> formed as a nub and screw respectively, the lower terminal screwing on to the terminal screw 3 and the terminal cap fitting on the screw o<3>. Several such resistances may be screwed together in series. A fourth terminal 4 may be provided for measuring low values of current and voltage by connecting the moving coil i<1> in series with a small resistance l and fuse l<1>. A pin n, normally housed in an aperture m<1> in the case, may be screwed into the operative position shown in Fig. 2 in which it is employed for making contact with the positive terminal of a battery to be tested for voltage, the negative terminal being connected to the terminal 3. For increasing the range as an ammeter, a shunt resistance as shown in Fig. 5 may be connected across the terminals 2, 4. The resistance is enclosed in an insulating casing p with apertures p<1> in the upper side, and is provided with forked terminals p<3> for connection to the terminals 2, 4, and with terminals p<4> for connection to the circuit.
Patent GB-910381-A (GB)
Title: Improvements in or relating to articles having underformed bearing or locating surfaces
Inventor: PAGE VALENTINE
IPC: F16C7/08
Filed: 1958-05-01
Abstract: 910,381. Making universal joints. BIRMINGHAM SMALL ARMS CO. Ltd. July 15, 1959 [May 1, 1958], No. 13838/58. Class 83 (2). In making a brake torsion-bar &c. 1 having an underformed bearing &c. surface S, the bar is formed in at least two parts 11, 13 on which non-underformed surfaces S<SP>1</SP>, S<SP>2</SP> may be formed, as by pressing, and the parts 11, 13 joined, as by spot-welding. Gaps 15 in the bearing surfaces facilitate the introduction, edge-on, of the nylon &c. bearing bushes 7, which are then turned into the plane of the bar.
Patent GB-456314-A (GB)
Title: Purification of titanium compounds
IPC: C22B34/12
Filed: 1935-03-02
Abstract: Solutions containing titanium tetrafluoride as such or combined with other salts, for instance as ammonium titanofluoride, are purified from heavy metals, especially iron, by neutralizing if necessary, as with ammonia, and adding a soluble sulphide such as ammonium, sodium, or potassium sulphide, or hydrogen sulphide. Preferably the solution contains also ammonium fluoride, the ratio of NH4F to TiF4 being from 1 : 1 to 5 : 1.  During precipitation of impurities, the solution is maintained neutral, if necessary, and reducing conditions are maintained during separation of the precipitate from the solution. Specification 456,058 is referred to.
Patent GB-406254-A (GB)
Title: Improved coin-tester for coin-freed vending machines and the like
Filed: 1932-05-14
Abstract: 406,254. Coin - freed apparatus. WISTOFT, S., Frederiksberg, near Copenhagen. May 14, 1932, No. 13926. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 4, 1933]. [Class 27.] Testing coins.-A testing device for separating coins of elastic metal from inelastic counterfeits, for example, lead discs, comprises a shoot having a vertical portion 1 and a downwardly inclined portion 5. The bottom of the part 1 is closed by a plate 2, the upper surface 3 of which is slightly inclined towards the portion 5, and disposed below it so as to form a step 6. Proper coins rebound from the surface 3 over the step 6 while inelastic counterfeits remain lying on the floor 2. Such counterfeit drops out when a movable side 7 of the shoot is opened.
Patent GB-243622-A (GB)
Title: Improvements in or relating to carriers for spare disc wheels
IPC: B62D43/02
Filed: 1925-05-27
Abstract: 243,622. White, A. E., (Budd Wheel Co.). May 27, 1925. Mounting spare wheels on vehicles.- A carrier for spare disc wheels, of the type comprising a, dummy hub or supporting-plate secured to the vehicle and having a number of studs which pass through holes around the central opening in a disc wheel and receive nu.ts to clamp the wheel to the dummy hub, is provided with means for carrying two disc wheels in such a way that the outer one may be removed without releasing the inner one. The dummy hub or suppouting- plate 11 carries a number of studs 13, Figs. 2 and 3, arranged at equal radial distances from the centre of the plate and secured thereto by nuts 15. On the outer end 16 of each stud 13 is secured an internally-threaded member 19 having a tapered shoulder 20 adapted to clamp the inner disc wheel 17 in position. The outer disc wheel 23 is clamped against another tapered shoulder 21 on each member 19 by a flanged nut 25 screwing on a threaded projection 22.
Patent GB-205047-A (GB)
Title: Improvements in or relating to disk coulters or skeiths for ploughs
IPC: A01B63/24
Filed: 1923-05-28
Abstract: 205,047. Craig, A. Oct. 5, 1922, [Convention date]. Disc-tool implements; tools, mounting adjustably.-The disc coulter or sheith of a plough is mounted in a fork F connected by a bolt M to the lower end of a stem or shank A rotatably mounted on the plough frame, interlocking washers N, N<1> being interposed between the stem and the fork to alow of adjustment of the fork about its axis for varying the angle that the disc makes with the vertical. The bolt M is in line with the axis of the fork, and the lower end of the stem A is bent so that the fork inclines downwardly. The washers N, N<1> have radial interlocking teeth and are locked respectively to the stem A and fork F by keys. The Specification as open to inspection under Sect. 91 (3) (a) describes also the arrangement shown in Fig. 1 (Cancelled). In this the fork F is adjustably connected to a sleeve B adjustably mounted on a shank A rigidly attached to the plough. The sleeve B is locked in adjusted position by a set-screw b and a toothed washer C and pin c. A central boss on an inclined plate D on the sleeve B fits into an axial recess in a similar plate H on the fork F. The plates D, Hare adjustably connected together by bolts K passing through curved slots concentric with the axis of the fork F. This subject-matter does not appear in the Specification as accepted.
Patent GB-358928-A (GB)
Title: Improvements relating to phonographic records
IPC: G11B3/70
Filed: 1930-05-07
Abstract: Moulds for impressing phonograph records are made by pouring a gelatine solution on the original wax master to form a film which when solid is mounted on a backing.  The gelatine may have alkaline bichromate added as a hardening agent.  The gelatine may be secured to a metal plate by an adhesive, or may be applied to the wax master as a thin coating upon which celluloid or a solution of pyroxyllin in acetone is poured and allowed to dry. The celluloid &c. may be used in the form of dry or damp sheets which are secured to the film by a solution of the same material. The gelatine solution when used as a thin coating for the wax master may comprise 3 per cent gelatine, 15 per cent glycerine, and 82 per cent water.
Patent GB-1450998-A (GB)
Title: Transferred electron devices
IPC: H01L47/02
Filed: 1974-03-29
Abstract: 1450998 Transferred electron device DEFENCE SECRETARY OF STATE FOR 6 March 1975 [29 March 1974] 14166/74 Heading H1K The efficiency of conversion of electrical to microwave power in a transferred electron device, e.g. Gunn diode, the major molecular constituent of the active region of which is indium phosphide is improved by utilizing a cathode made of an oxidized alloy of silver and gallium containing more silver atoms than gallium atoms and typically four times as much silver as gallium by weight. As described the active region is a 10 Á N-type epitaxial layer of InP formed by reaction of indium and phosphorus trichloride on an N + InP substrate acting as anode and heat sink. The cathode is formed by (a) oxidizing the layer surface in H 2 O 2  and then alloying silver and gallium to it; (b) heating gallium with gallium trioxide or in air or oxygen prior to alloying with silver on the layer; (c) heating gallium and silver together with gallium trioxide or in air or oxygen and alloying the by-product on the layer; or (d) heating silver (or gallium) in air or oxygen and then alloying it on the layer with gallium (or silver). Details of processes giving an oxygen content 2-20 atomic per cent of the gallium content are described. An alternative active region is of InAs x P 1-x  where 0<x#0À25.
Patent GB-514650-A (GB)
Title: Improvements in or relating to television or like systems
IPC: H04N5/202
Filed: 1938-05-12
Abstract: 514,650. Television; valve amplifying cir- 'cuits. FERNSEH AKT.-GES. May 12, 1938, No. 14184. Convention date, May 12, 1937. [Classes 40 (iii) and 40 (v)] In order to obtain a positive reproduction after transmission from a negative film or vice versa, whilst retaining the original gradation of light and shade, television or like signals are reversed by passage through a device which transforms signals having increasing voltage stages, the differences of which increase (or decrease) logarithmically into signals having increasing voltage stages, the differences of which decrease (or increase) logarithmically, i.e., the reversal stage has a double logarithmic characteristic. This may be achieved by an amplifier or attenuator with a characteristic as shown in Fig. 4 and such an amplifier can be designed by connecting in parallel three valves or sets of valves having respectively small amplification, large amplification, and medium amplification, their characteristics being represented by the curves a, b, c, Fig. 5, of which c is preferably curved. Fig. 6 shows such a combination of three valves 1, 2, 3 having variable anode impedances 4 .. 6 and variable grid-bias resistances 7..9 by which the individual characteristics may be varied to obtain the desired overall characteristic. Alternatively, the screen-grid voltages may be variable. The characteristic may also be adjusted to compensate for the gradation curve of the film emulsion and for non-linearity of characteristic of the cathode-ray tube. The invention is applicable to the reversal of an image of a sound track and to picture telegraphy and the transmission of photographs.
Patent GB-630170-A (GB)
Title: Improvements in or relating to apparatus for testing ignition systems for internal combustion engines
IPC: F02P17/08
Filed: 1947-05-28
Abstract: 630,170. Testing ignition. ENGLISH ELECTRIC CO., Ltd., and ROBERTS, W. R. J. B. May 28, 1947, No. 14192. [Class 7 (iv)] In apparatus for testing ignition systems for internal-combustion engines of the kind referred to in Specification 563,502 there is provided a multi-core cable for connecting the apparatus to an ignition system, which cable comprises a plurality of conductors, one at least being unscreened and connected, or adapted to be connected, at one end to a signal-input circuit of the apparatus and at the other end to a point in the primary circuit of the ignition system and at least one other of said conductors being screened and' connected or adapted to be connected at one end to a synchronising circuit of the apparatus and at the other end to a point in the secondary circuit of the ignition system. A four conductor multi-core cable connects apparatus A, of the kind referred to, to the ignition system B ; one core 1 supplying power from the ignition-system battery whilst another core 2 is connected between a point 6 in the ignition-primary circuit and a signal-input transformer 7 in the apparatus A. A third core 3 conducts synchronising impulses to a transformer 8 in the apparatus A from one of the sparking plugs. The fourth conductor 4 consists of metal-braiding which surrounds the insulation of the conductor 3 and acts both as a screen for that conductor and a common-return path for the other three conductors. A 3.3 megohm resistance 9, which is connected in series with the conductor 3 forms, in conjunction with the distributed capacity between conductors 3 and 4, a filter for attenuating the higher-frequency components of the synchronising impulses. An additional filter which is inserted at the engine end of the conductor 3 consists of two shunt condensers 10, 11 each of 0.002 microfarads capacity and a series resistance 12 of one megohm.
Patent GB-125650-A (GB)
Title: Improvements in or relating to Steam-jet Air Ejectors.
IPC: F04F5/46
Filed: 1916-10-07
Abstract: 125,650. Weir, C. & J., and Lang, C. R. Oct. 7, 1916. Aspirating-apparatus, ejector; starting and stopping, automatic.-Relates to the prevention, in steam-jet air ejectors extracting air from condensers and other chambers having a pressure of one-eighth of an atmosphere or less, of the fluctuation in pressure which frequently obtains, and to automatic starting when the ejector has ceased work from this cause. For this purpose the suction chamber surrounding the steam-jet nozzle, or each suction chamber of a multiple ejector, is constructed of as small capacity as possible, and access of air thereto from the vessel to be evacuated is controlled by means of a light plate stabilizing-valve. Fig. 1 shows a single-unit ejector with steam nozzle b, suction chamber a, discharge cone or diffuser nozzle c, and normally-open gravity, plate valve d mounted below the air-suction opening e. When the stream in the diffuser nozzle breaks and blows back, pressure rises in the air suction chamber and the valve closes, remaining in that position until a pressure of about oneseventh of the discharge pressure is reached, whereupon the ejector re-starts, the cycle of action having lasted a fraction of a second. Fig. 4 shows in section part of an arrangement of four ejectors in parallel, the casting of the body having a web s for separating the common steam-chest n and air-chamber m. In each of the four suction chambers a are situated a steam nozzle b with hand stop-valve w, and a gravity plate-valve d controlling, as before, the passage e from the air chamber m. In modifications the plate-valves are arranged for horizontal movement, or they may, while retained on the ejector side of the seat, be adapted to open upwards and be kept normally from closing by means of a light spring. Reference has been directed by the Comptroller to Specifications 3908/77, 541/85, 11818/85, 5325/08, 5334/08, 7294/09, 6284/10, 805/13, and 6758/13.