baber/WOPTO huggingface dataset:
Patent GB-103400-A (GB)
Title: Improvements in and relating to Planes and the like for Aeroplanes.
IPC: B64C3/48
Filed: 1916-04-29
Abstract: 103,400. Holle, A. A., Judge, A. W., and Varioplane Co. April 29, 1916. Planes, construction of.-The aerofoil described in Specification 15290/15 is modified so that, as the upper surface of the entering edge is raised and the trailing part flexed downwards, the nose of its entering edge is depressed. The mechanism for depressing the nose comprises a bell-crank lever m<3> pivoted to the plate f, one arm of the lever being connected to the spar m forming the rigid member of the nose, and the other arm to the mechanism for varying the position of the tail and the upper surface of the plane. A link m<1> connects the lower part of the coupling-plate m<2> to the plate f.
Patent GB-439164-A (GB)
Title: Improved amplifiers for television
IPC: H04N5/16
Filed: 1934-02-26
Abstract: 439,164. Valve amplifying circuits. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, Germany. Feb. 26, 1934, No. 6150. Convention date, Feb. 25, 1933. [Classes 39 (i), 40 (iii), and 40 (v)] To obtain television images with a correct average intensity, the voltages representing variations from point to point of the picture and the very low frequency and direct-current potentials representing the mean intensity of the picture are amplified separately and subsequently superposed. The former amplifier 4 does not amplify below 25 cycles per second, and is operated from the mains and completely stabilized against parasitic oscillations. A screening-grid valve is used with the leads to the control grid and the anode taken out at opposite points of the bulb, Fig. 4 (not shown). The light-sensitive cell 1 and the amplifying-valve may be in a single bulb. The direct-current amplifier 7 transmits frequencies only up to about 5 cycles per second and comprises a single pentode of very great and variable amplification factor. The amplification is automatically regulated to be smaller than, or equal to, the amplification of the alternating-current amplifier 4. The latter is automatically regulated by a diode 41 varying the bias on a valve 33 with a variable amplification factor so that the highest peaks of the amplified currents do not overmodulate the output stage 40. The internal resistance of the diode is so dimensioned relatively to a resistance 46 that the downward regulation is more rapid than the upward regulation. The regulation may be performed by gasdischarge tubes. Specification 434,274 is referred to. The Specification as open to inspection under Sect. 91 also describes emphasising the higher frequencies by an anode circuit consisting of a high resistance and a choke in series and a variable resistance in parallel with the choke. This subject-matter does not appear in the Specification as accepted.
Patent GB-1179727-A (GB)
Title: A Method of Producing Cold-Resistant Thermoplastics Articles
Inventor: MAHNER KARL
IPC: B29B13/02
Filed: 1967-02-09
Abstract: 1,179,727. Cold-resistant articles. METALL. GESELLSCHAFT A.G. 9 Feb., 1967 [12 Feb., 1966], No. 6196/67. Heading B5A. Cold resistant articles of crystallizable polyesters or polyamides are produced by rolling articles thereof at a temperature between the vitrification point i.e. the temperature at which crystallization begins and the fusing point so that the cross-section of the article may be reduced to between ¢ and 1/15 of its original cross-section, preferably between 1/5 and 1/10.
Patent GB-177364-A (GB)
Title: Improved construction of apparatus for extracting fibre from refuse of decorticating and like machines
IPC: D01B1/24
Filed: 1921-02-24
Abstract: 177,364. Bell, W. T., and Taylor, G. Feb. 24, 1921. Openers &c.-In apparatus for extracting the fibres from the refuse of decorticating and like machines, the refuse is passed from a hopper 13 down a rigid wall 11 over which and in engagement with which passes a series of pins 10 on endless bands. The fibres are carried away by the pins and removed therefrom by fingers 18. The refuse escapes through a grating 14 on to a travelling endless band 20. Water may be supplied to the apparatus through pipes 15, 16, 17 to assist in the separation of the fibres. The pins mav be mounted on a cylinder working in a trough arrangement through which the refuse is passed.
Patent GB-1011724-A (GB)
Title: Apparatus for reproducing signals recorded on magnetic tape
Inventor: BALDWIN JOHN LEWIS EDWIN
IPC: G11B15/14
Filed: 1962-02-19
Abstract: 1,011,724. Switching magnetic playback heads; television. RANK-BUSH MURPHY Ltd. Feb. 18, 1963 [Feb. 19, 1962], No. 6296/62. Heading G5R. In playing back television video signals from transverse magnetic tape tracks by succession of revoluble heads, the head switching occurs during the " front porch" of the blanking period, resulting in both the synchronizing pulse and the following video information being played back by the same head from the same partial track. The usual photo-electrically-derived headposition pulses A provide that only those synch.- pulses B shown * are associated with a pulse generator via known feedback/error-detection means to produce the pulses C to gate the headswitching waveform D. Switching of the (four) heads consequently occurs at time intervals t 1  before the next-occurring synch.-pulse that are small compared with the pulse-intervals. The corresponding portions of signal switched to the output by the respective heads are as indicated by the timing of the pulses shown in E, F, G, H. Specification 1,011,723 describing a circuit arrangement for ensuring correct phasing of the waveform D is referred to. A block diagram of the system (Fig. 1, not shown) and circuits of a logical system of interconnected transistors producing the required waveforms and gatings (Figs. 3, 4, not shown) are described in detail.
Patent GB-1260671-A (GB)
Title: Improvements relating to target apparatus
Inventor: KNIGHT LINDSAY CHARLES
IPC: F41J1/10
Filed: 1968-02-08
Abstract: 1,260,671. Clamps. AUSTRALASIAN TRAINING AIDS PTY. Ltd. 5 Feb., 1969 [8 Feb., 1968], No. 6297/68. Heading E2B. [Also in Divisions F3 and F4] A target holder comprises first and second elongate portions 11, 12 each having a target engaging member 17, 21, the target engaging member 17 of the first portion 11 having at least one projection 19 extending towards the second portion 12 and the second portion having at least one slot 23 in the upper edge thereof, the parts 24, 25, 28 of the upper edge formed by the slot(s) being deformed towards the first portion 11. Clamping means, e.g. bolts 18 and wing nuts 26, are provided to draw the portions 11, 12 together about the target.
Patent GB-274758-A (GB)
Title: Improvements in and relating to shock absorbers
IPC: F16F9/22
Filed: 1927-03-07
Abstract: 274,758. Lovejoy, R. M. Nov. 22, 1926, [Convention date]. Fduid - friction vibration-dampers.- In one-way apparatus of the type in which movement of a piston in one direction is retarded by a valve-controlled relief port allowing only restricted flow of liquid from the cylinder to a reservoir, the relief port is controlled by compound valve mechanism including auxiliary and rosin valves yieldable respectively to light and heavy pressures of the liquid. The cylinder 2, Fig. 1, piston 11 and piston operating mechanism 17, 18 are enclosed in a casing 3 forming a reservoir. The piston is formed with a long slot 35 allowing free communication between the cylinder and relief port 34. The one-way spring-controlled valve 29 in the piston allows free upward movement, such movement being assisted by a spring 25. The compound valve, shown also in Fig. 4, comprises a main outer valve with seat 36 and hollow stem 42 controlled by a spring 57, and an auxiliary valve 45 enclosed in the hollow stem of the main valve and controlled by a spring 49. Slow movements of the piston and the consequent low liquid pressures are dealt with by the auxiliary valve, liquid then flowing through the port 41, the hollow stem of the small valve, the port 51 and the space between the main valve stem 42 and the cap 54. Rapid movements of the piston with higher liquid pressures result in the lifting of the large valve 36. 42. A gauge 43 is provided in the large valve.
Patent GB-402632-A (GB)
Title: Improvements in or relating to landing grounds for aircraft
IPC: B64F1/20
Filed: 1933-03-02
Abstract: 402,632. Aircraft landing places. CHEVALIER, J. P. L., 9, Rue FÚlicien David, St-Germain-en-Zaye, Seine-et-Oise, France. March 2, 1933, No. 6328. Convention date, March 2, 1932. [Class 4.] To indicate to an arriving aeroplane an appropriate landing track, a light or other source of radiant energy 4 at the windward side of the landing ground sends out a beam which can be swung in a vertical plane from the zenith towards the landing track, and pairs of lamps &c. 5, 7, 9 on opposite sides of the track cast beams which intersect above the track at successively reduced heights, 11, 12, 13. Beyond these lights further pairs of lamps 14, 15, 16 cast horizontal beams at successively reduced heights and the landing track proper 3 is floodlit. The lamps on one side of the track are white and the others are of different colours successively. The lamps may be permanently mounted on the landing ground and those common to a number of tracks have means for changing their colour and direction. When other radiant energy than light is used the transmitters are given characteristics detected by instruments on the aircraft.
Patent GB-1213572-A (GB)
Title: Drying gas in compressed gas systems
IPC: B01D53/26
Filed: 1968-02-08
Abstract: 1,213,572. Drying compressed gas. HANKISON CORP. 8 Feb., 1968 [10 Feb., 1967], No. 6398/68. Heading B1L. Gas, especially air, from is compressor is passed to inlet 210 of the drier and passes down annular space 216, and thence up through oil separator 232, which comprises for example a filter sheet between foraminous members, and through desiccant 208 held between filter pads 234, 236, e.g. of polyurethane foam, pad 236 maintaining the desiccant under compression through the agency of spring 268. The dry effluent gas passes through check valve 260, which is provided with a reverse bleed aperture 254 in closure member 252, enabling the flow of gas through the valve to be controlled, and enters plenum 242, passing thence through outlet 202 and check valve 206 to storage tank 28'. Periodically the compressor is stopped and the oil separator 232 is cleared by opening exhaust valve 212, causing an explosive outrush of air from plenum 238, desiccant chamber 208 and space 286 and forcing oil out through the valve 212. Thereafter, regenerant is passed through the desiccant 208 and out through aperture 254 until the desiccant is fully regenerated. The comprssion cycle is then recommenced.
Patent GB-765429-A (GB)
Title: Coal-getting method and apparatus for use therein
IPC: E21C29/14
Filed: 1955-03-04
Abstract: 765,429. Coal mining. STAMICARBON, N.V. March 4, 1955 [March 10, 1954], No. 6441/55. Class 68 (1). A method of coal mining comprises reciprocating a winning machine or a number of winning machines 10, such as scraper buckets or ploughs, in series along the coal face by a hauling cable 13 which is led from one end of the face round rollers 17, 18 in a gate road 2 to a winch 15 and from the other end of the face round rollers 20, 19 in a gate road 3 and then within a tube 7 passing through the seam to the winch 15. To insert the tube 7 a cut-through 4 is made between the gate roads 2, 3. The tube 7 is laid on the floor and concrete blocks 8 may be placed each side of the tube or the tube may be placed in a groove in the floor and covered with sand &c. and may also be covered with plates to prevent damage when the cut-through is filled by pneumatic stowing or its roof collapsed. The tube 7 may be lubricated. The coal-winning may be started directly from the position of the tube while in retreating winning the coal can be won mechanically right up to the tube position. Specification 693,081 is referred to.
Patent GB-645894-A (GB)
Title: Improvements in or relating to the crankcases of internal combustion engines of the type having horizontally opposed cylinders
IPC: F02B75/28
Filed: 1948-08-12
Abstract: 645,894. Crank-chambers. MAYES, H. R. Aug. 12, 1948, No. 6451. [Class 7(ii)] A horizontally-opposed cylinder engine has a crank-case split into two parts 1, 2, by the plane P containing the axes of the cylinders and crank-shaft. The parts are connected by short studs adjacent the main bearings and nuts accessible through pockets 7.
Patent GB-1409222-A (GB)
Title: Dough piece processing apparatus
IPC: A21C7/01
Filed: 1974-02-13
Abstract: 1409222 Dough piece processing apparatus DEBAG DEUTSCHE BACKOFENBAU GmbH 13 Feb 1974 [21 March 1973] 06488/74 Heading A2A A dough piece processing apparatus, for use for example in the manufacture of small bread loaves, comprises a dough processing machine 12, dough piece processing devices 14, 16 and a delivery station 18 connected to one another by conveying means which includes a feed belt 24 for transporting dough pieces 26 from a delivery belt 22 of the processing machine 12 to the processing devices 14 and 16. The belt 24 is sufficiently wide to accommodate several rows of adjacent dough pieces 26, and the end of the belt 24 lies above the loading end of a conveyor belt 28 which leads to an endless conveyor 32 which traverses the delivery station 18. The conveyor 32 consists of two parallel spaced-apart chains between which a plurality of tipping pans or troughs 30 are carried; each trough 30 being suspended from the chains of the conveyor 32 in such a manner as to be capable of pivotal movement about an axis which is above its centre of gravity when the trough 30 is free to perform pivotal movement. When a sensor 74 contacts a piece of dough in the leading trough 30, subsequent movement of the conveyor 32 causes the dough piece to pivot the sensor 74 which actuates a switch 76 which in turn causes a rail 70 to move vertically downwards, so that the troughs 30 are moved from the carrying position to a tipped position in which the dough pieces are transferred to a take-off carrier 67.
Patent GB-373667-A (GB)
Title: Improvements in or relating to the concentration of minerals by flotation
IPC: B03D1/012
Filed: 1931-03-02
Abstract: The sulphonation of fatty acids or fatty oils is effected by heating the acid or oil with concentrated sulphuric acid, the mixture being kept stirred.  Details of the weights of the reacting substances and the time and temperature are given for the sulphonation of the following:--oleic acid, a mixture of equal parts of oleic acid and palm oil, castor oil, cotton seed oil, linseed oil, olive oil, and pea-nut oil.  Specifications 19855/14 and 19856/14, [both in Class 82 (ii), Washing granular &c.], are referred to.ALSO:In the froth flotation concentration of oxidized minerals an organic sulphur-containing carbonic acid compound, for example a xanthate, and a sulphonated fatty acid or fatty oil are used conjointly as flotation agents, preferably also with a soluble frothing agent, e.g. cresylic acid.  The sulphonated compounds of the following acids and oils are referred to:-oleic acid, equal parts of oleic acid and palm oil, castor oil, cotton-seed oil, linseed oil, olive oil, and pea-nut oil; the products are used with potassium ethyl xanthate or potassium amyl xanthate, cresylic acid, and sodium silicate, with or without palm oil, in the flotation of an oxidized copper ore.  The sulphonation is effected by heating the acid or oil with concentrated sulphuric acid, the mixture being kept stirred.  Details of weights of reacting substances, temperature, and time are given in each case. Specifications 19855/14 and 19856/14, [both in Class 82 (ii), Washing granular &c.], are referred to.
Patent GB-659638-A (GB)
Title: Improved arrangements for the adjustment of optical instruments
IPC: G02B21/24
Filed: 1949-03-10
Abstract: 659,638. Optical gauging - apparatus. SVENSKA ACKUMULATOR AKTIEBOLAGET JUNGNER. March 10, 1949, No. 6569. Convention date, April 21, 1948. [Class 106 (ii)] [Also in Group XX] The dimensions of an object viewed in a microscope are measured by displacement of the whole or part of the objective lens in two directions perpendicular to each other and to the optical axis, the resulting displacement of the image being seen in the eyepiece. The lens mounting is provided with means for effecting these movements and scales for indicating the displacements. As shown, the lens 1a, 1b is mounted in a holder 3 provided with studs 4, 5 passing through slots 4<SP>1</SP>, 5<SP>1</SP> in a member 8, the stud 4 containing a plug 7 pressed by a spring 6 into contact with the eccentric or cam-shaped inner surface of ring 10 rotatably mounted on the member 8 whereby the lens is moved in the plane of the figure at right angles to the optical axis. The member 8 similarly has studs 11, 12, shown in the Figure as in the same plane as the studs 4 and 5 but actually perpendicular thereto, and is similarly moved by an eccentric ring 17 rotatable on the instrument tube 15. Alternatively the movements may be effected by a screw or wedge system. To produce small movements of the image for large movements of the lens the latter is made of long focal length and the main portion of the objective is held stationary.
Patent GB-765620-A (GB)
Title: Improvements in an electric motor
Inventor: MOERK JOHN CARROLL
IPC: H02K5/132
Filed: 1955-03-07
Abstract: 765,620. Cooling electric motors. FAIRBANKS, MORSE & CO. March 7, 1955, No. 6619/55. Class 35. A motor has axial passages for fluid between the rotor shaft and core communicating near one end of the rotor with radial bores in the shaft fed from an axial bore in the shaft terminal portion, the fluid from the other ends of the axial passages being discharged from the rotor through radial passages in a ring on the shaft and returning through the stator and air gap for recirculation. As shown, oil reaches the channels 55 in the shaft periphery from axial and radial bores 62, 67 in the shaft and passes from channels 55 to the impeller 70 from which it returns to the lower end of the motor by the air gap and the stator conductor slots which are enlarged for this purpose. Instead of being in the shaft periphery, the axial rotor passages could be in the inner periphery of the rotor laminµ.
Patent GB-230830-A (GB)
IPC: H02K17/28
Filed: 1925-03-11
Abstract: 230,830. Deutsche Werke Akt.-Ges. March 12, 1924, [Convention date]. Alternating-current commutator machines; protective or safety devices, auxiliary; brushholders.-Compensated asynchronous motors are provided with protective devices which automatically cut out the motor if the brush-rocker is incorrectly positioned with regard to the direction of rotation. In one arrangement, Fig. 1, an electromagnet f in circuit with the compensating winding n controls the main switch a and is operated when brush-rocker switch blades l wrongly engage either contacts m<1>, m<2> according to the direction of rotation of the rotor, a ring h carrying an insulating plug i and frictionally driven by the rotor shaft in either direction breaking one or other of the contacts k<1>, k<2>. In another arrangement, Fig. 2, a disc o on the main switch release catch c is rotated by current and voltage coils p, q on the main sides of the motor, the coil p being in phase E'and q across phases E<2>, E<3>. No torque is produced on the disc if the brush-rocker is correctly positioned, but if incorrectly positioned a wattless component rotates the disc and releases the catch c.
Patent GB-681669-A (GB)
Title: A closure for vessels for the preparation, asceptic storage, and delivery of sterilised liquids
IPC: B65D51/00
Filed: 1951-03-21
Abstract: 681,669. Surgical containers. ODELGA ARZTLICH-TECHNISCHE INDUSTRIE AKT.- GES. March 21, 1951 [March 22, 1950], No. 6774/51. Class 81 (ii). [Also in Group XVII] A vessel 1 for th preparation and stor age of blood for us in transfusions has a closure comprising rubber stopper 2 having a slit 12 con nected to the interio of the vessel by a passage 13, drawn on to the vessel by a screw cap 5 and a rubber cover cap 8 The closure is placed on the filled vesse with screw cap 5 loosely applied and a diaphragm 8 placed over the stopper 2 The vessel is sterilised in an autoclave, air escaping through the slit 12 which acts as a valve and througl the loosely con nected threads of the screw cap and vessel and then the cap is tightened to form a seal. On cooling a vacuum is established and is indicated by the collapse of the cover cap 8. In use for transfusions &c. the cover cap 8 is removed and the diaphragm 8 and stopper 2 punctured by the withdrawal apparatus.
Patent GB-1008392-A (GB)
Title: Turbine meters
Inventor: KARLBY HENNING
IPC: G01F1/12
Filed: 1964-02-18
Abstract: 1,008,392. Rotary meters. ROCKWELL MANUFACTURING CO. Feb. 18, 1964, No. 6795/64. Heading F1F. To improve the accuracy of rotary flow meters metering fluids of high viscosity, e.g., crude oils, having a bladed metering rotor 30, Fig. 1, rotated by the flowing fluid and connected to a register 22, the meter includes a free-spinning rotor 34 fitted upstream of the rotor 30 having blades 46, the blade angle of which is approximately equal and opposite to the blade angle of the blades of the bladed metering rotor 30, so that the rotors rotate at about the same speed in opposite directions. The axial spacing between the rotors is made short enough so that the tangential component of fluid exit velocity from the free rotor is not significantly reduced by fluid friction in the spacing and long enough so that the disturbance upstream of the metering rotor created by the counter rotating free rotor is small when its reaches the metering rotor. Experimentally a suitable spacing is found to be at least twice the chord length of the blades of the free rotor. Torque resisting rotation of the rotors is made up of three parts, (a) that due to mechanical friction of the rotors in the bearings which are of sapphire to reduce this to a minimum value, (b) that due to the turbulance of the flowing fluid, and (c) that due to the viscosity of the flowing fluid With fluids of high viscosity, resisting torque due to (c) may be large in magnitude and although its magnitude may not be reduced, the fitting of a free counter rotating roter in front of the metering roter substantially cancels out its effect on the metering roter. For small flows and on starting, it is shown mathematically that the driving torque on the meter is practically doubled with the addition of the free roter in front of the metering roter. Specification 917,140 is referred to.
Patent GB-295199-A (GB)
Title: Life saving suits
IPC: B63C9/093
Filed: 1928-03-05
Abstract: 295,199. Beauvais, H. L., and Taylor, B. F. March 5, 1928. Buoyant body attachments.-A life saving suit which totally encloses the body of the wearer has an opening extending from the neck to the fork of the legs, and a gusset-piece 26 extending across the opening on the inside, which is secured to the sides of the suit and to the back of the neck, an opening being provided in the gusset through which the wearer enters the suit. The front of the suit is closed by sliding-clasp fasteners 25. The gussetpiece is drawn about the neck of the wearer by a strap and buckle 31. A drain-hole 32 is provided to allow water collected in the gusset to escape. The suit may be made' from two-ply rubber covered material. A kapok filled vest may be worn with the suit.