baber/WOPTO huggingface dataset:
Patent GB-1321172-A (GB)
Title: Method and device for obtaining parallel and focused ionic  microbeams and application of said method to the collective  formation of electric circuits by ion implantation
IPC: H01J37/317
Filed: 1971-01-19
Abstract: 1321172 Mass separators; ion implantation into semi-conductors COMMISSARIAT A L'ENERGIE ATOMIQUE 19 Jan 1971 [20 Jan 1970] 2519/71 Headings H1D and H1K A method of obtaining identical parallel focused beams of monoenergetic ion beams of a single isotope suitable for simulataneous production of identical circuits by ion implantation comprises three stages 1, 6 and 11: a beam of monoenergetic ions of a single isotope leave stage 1; the input beam to stage 6 is transformed to a broad cross-section parallel beam which is then split into parallel focused microbeams which leave stage 6; the microbeams are focused on to the sample 13, e.g. a semiconductor material which is provided in stage 11. The beam 3 from an ion source, e.g. of the duoplasmatron type is focused by a system 4 of quadruple lenses producing a convergent beam of about 30 KeV. which passes through a double-focusing electro-magnet isotope separator 5. A system 8 of quadruple lenses produces a broad parallel beam which passes through tube 9 comprising coaxial frustoconical rings and producing a substantially uniform electric field which is adjustable so as to vary the depth of ionic penetration in sample 13. The device 10 comprises a system of quadruple microlenses having filiform electrodes and producing microbeams focused on the sample 13 which is displaceable relative to the beams preferably by a computer control 14. The ion dopants may be Li, B, Al, P, Ga, As, Cu, Zn, In and Au and the microbeams have a diameter of 1 micron and an energy between about 10 KeV and 180 KeV.
Patent GB-807061-A (GB)
Title: A belt conveyor having improved tracking ability for the conveyor belt
IPC: B65G39/071
Filed: 1955-01-27
Abstract: 807,061. Aligning conveyer belts. UNITED STATES STEEL CORPORATION. Jan. 27, 1955 [Nov. 8, 1954], No. 2532/55. Class 78 (1). To assist in maintaining an endless conveyer belt on its track, the terminal rollers each comprise a central section providing a beltsupporting surface of smaller width than that of the belt, and two end sections having a diameter less than the diameter of the central section. As shown in Figs. 1, 2, the terminal rollers 4, 6 have narrow belt-supporting sections 4a, 6a for supporting the belt 2. Self-centring rollers 20, 32, 34, 36 as described in Specification 807,062 are also provided. In a modification (Fig. 12, not shown) the upper rim of the belt is supported intermediate the terminal rollers by a plate. Specifications 709,908, 717,671, 735,561 and 765,470 also are referred to. Reference has been directed by the Comptroller to Specification 759,415, [Group XVI].
Patent GB-1374316-A (GB)
Title: Load cells particularly for determining compression forces in mine  supports
IPC: G01L1/02
Filed: 1972-01-19
Abstract: 1374316 Load cell BERGWERKSVERBAND GmbH 19 Jan 1972 [10 Feb 1971] 2556/72 Heading G1W A load cell comprises a pressure member 1 having a small cavity 3 filled with liquid and connected to an indicator tube 4. Pressure plates 2 or 21 may be provided either side of the pressure member, or the pressure member may be placed in direct contact with pit props or rock surfaces. The pressure member 1 may be of plastics material, suitable examples of which are given.
Patent GB-413388-A (GB)
Title: Improvements in or relating to radio receiving systems
IPC: H03G3/26
Filed: 1933-01-26
Abstract: 413,388. Valve circuits for wireless reception. COSSOR, Ltd., A. C., and WALKER, F. M., 22, Highbury Grove, London. Jan. 26, 1933, No. 2559. [Classes 39 (i) and 40 (v).] A circuit for automatic volume control comprises two diodes, one acting as a detector feeding a low frequency amplifier the other producing a biassing voltage to control the amplification of said low frequency amplifier. As shown the diodes D1, D2, Fig. 1, are contained in a valve V and have a common cathode which also acts as the cathode of a low frequency amplifying stage. Signals from a circuit L, C are applied to the diode D1 having a load resistance R from which the detected signals are fed through condenser C3 to the low frequency amplifier. The diode D2 is fed through a condenser C4 and the D.C. potential developed across its load resistance R1 is applied to the low frequency amplifier through a resistance R2 and also to previous amplifying stages over the leads W1, W2 bridged by a filter F. The A.V.C. action is delayed by the application of a negative potential to the diode anode D2 from a portion R3 of a potential divider bridging the H.T. supply circuit. The valve V preferably comprises a cathode C, Fig. 2, control grid G1, the mesh of which expands exponentially from the ends to the centre, a screening grid G2, a suppressor grid G3 and a main anode A, the cathode also having associated therewith at its lower end the diode anodes D1, D2, the dynamic anode current-grid voltage characteristic of the pentode portion being logarithmic in form.
Patent GB-779917-A (GB)
Title: Improvements relating to the production of foam rubber
Inventor: CALVERT KENNETH OSBORNE
IPC: C08J9/00
Filed: 1955-01-28
Abstract: After a vulcanizable compounded rubber latex is foamed, shaped in a mould and gelled, and before vulcanization, the shaped and gelled foam is treated with a coagulating gas to improve the firmness of structure of the vulcanized product.  The preferred coagulating gas is carbon dioxide, and it may be used either alone or mixed with air, nitrogen or other non-active gas.  The walls of the mould may be perforated and the gas passed through to the latex under slight pressure, or the mould and its contents may be placed in a chamber containing the gas.  It is stated that the process is particularly valuable when the gelling agent is a mixture of zinc oxide and ammonium acetate.  The gas may be introduced in the early stages of the vulcanization.  Four examples are given in which natural rubber latices, or a mixture of natural and synthetic rubber latices, were foamed with a sodium castor oil soap foaming agent, placed in moulds and gelled, and in each case the foamed rubber in one mould was coagulated by carbon dioxide gas but not that in another mould.  It is stated that comparison showed that, after vulcanization, the texture of the foamed rubber coagulated according to the invention was superior to that not so treated.
Patent GB-944719-A (GB)
Title: Improvements in or relating to aircraft structures
Inventor: WILLIAMS DAVID
IPC: B64C3/26
Filed: 1960-01-25
Abstract: 944,719. Aircraft framework. MINISTER OF AVIATION. Jan. 19, 1961 [Jan. 25, 1960], No. 2600/60. Heading B7W. [Also in Division F2] A vibration-protecting screen 14 for an aircraft structure is resiliently supported, at its peripheral regions parallel e.g. to a fuselage load-carrying frame comprising transverse members 11, stringers 12, and a stressed skin 13, by means of rows of hair-pin springs 15 which are interposed between the frame members 11, 12 and the skin 14 to support the latter stiffly against displacement in its own plane, but flexibly normal to the plane with respect to the structure. The stressed skin 13 has a set of evenly-distributed, flanged holes 16 which, in combination with the space between the screen 14 and the skin 13, are stated to provide the essential characteristics of a number of Helmholtz resonators the spacing between the screen 14 and the skin 13 being selected to provide a high natural frequency of about 2-3 kc/s. to ensure that the insulating power of the screen 14 is effective for a wide range of forcing frequencies e.g. from a jet engine efflux, of about 100-1200 c.p.s.
Patent GB-555618-A (GB)
Title: Apparatus for receiving frequency modulated waves
IPC: H03D3/22
Filed: 1942-02-27
Abstract: 555,618. Frequency modulation. PHILCO RADIO & TELEVISION CORPORATION. Feb. 27, 1942, No. 2630. Convention date, Feb. 27, 1941. [Class 40 (v)] A frequency modulated carrier is de-modulated by applying it to a phase detector jointly with a locally-produced wave which is maintained in loose synchronism with the received wave. As shown, the wave is applied from the I.F. output 11 to the fourth grid of a valve 12 which operates as a phase detector and as a local generator. The first two grids of the valve maintain oscillations in the tuned circuit 13, the frequency being controlled by a thermionic reactance valve 7 the circuits of which may be arranged as described in Specification 490,625. When the received signal is at its mean unmodulated frequency, the cathode bias of the valve 7 is adjusted at 19 so that the local oscillation is identical in frequency but is in phase quadrature with the signal wave. Under these conditions, the phase detector gives zero output. When the received frequency varies the phase detector output is applied by the lead 9 to the grid of the valve 7, causing the local oscillator to follow the instantaneous frequency of the received wave, but effecting a departure from the normal quadrature phase relation of the two waves. The control voltage in the lead 9 may be used as the audio output of the receiver. The system removes noise and amplitude modulation without the use of limiters. The Specification as open to inspection under Sect. 91 describes a modification in which the phase detector comprises a pair of diodes with the incoming signal applied to them in phase opposition, and the local wave in phase agreement. This subject-matter does not appear in the Specification as accepted.
Patent GB-903298-A (GB)
Title: Improvements in or relating to windscreen wipers
IPC: B60S1/40
Filed: 1958-01-27
Abstract: 903,298. Windscreen wipers. O'SHEI, W. E. Jan. 27, 1959 [Jan. 27, 1958], No. 2638/58. Class 138 (1). The blade of a windscreen wiper is connected to the wiper arm by an assembly comprising channel section members 1, 2 connected together and to the blade (not shown) by a rivet pin 4 to form a passage 3 for receiving the end of the wiper arm (not shown). The member 2 is of spring steel and is formed with ears 5a adapted to engage notches in the sides of the wiper arm, and its end 8 is formed as a finger tab which is depressed when it is desired to withdraw the wiper arm. Alternatively, the spring member 2 may have a single ear only or a dimple. As a further alternative a separate leaf spring may be secured to the cross-web of the inner channel section member.
Patent GB-133717-A (GB)
IPC: A61F2/58
Filed: 1917-08-09
Abstract: 133,717. Troendle, H. Aug. 9. 1917. Limbs, artificial.-An arm of the kind described in Specification 115,753, has the hand removable from the forearm, in which a tube is mounted to receive a pin connected with the hand. The tube 113 is mounted in a sleeve 114 in the forearm and has a projection 117 to engage a bayonet-slot 118 in the tubular pin 116 carried by the hand. A spring-pressed cross-piece 119 engages the upper end of the bayonet-slot to retain the pin 116 in its locking position, and can be released by a lever 124. A spring-pressed coupling-rod 120, which controls the movement of the fingers, has its end shaped like an arrow-head to pass into a piece 122, to which it is locked by the turning of the pin 116 in effecting the bayonet-joint locking. At the same time, the head 130 of the rod 127 is locked in the ball 129 of the ball joint for the hand control, which joint is arranged in the hollow 115 of the wrist.
Patent GB-547417-A (GB)
Title: Means for imparting continuous or intermittent movement to a sprocket wheel
IPC: F16H7/06
Filed: 1941-02-28
Abstract: 547,417. Chain gearing. GANDELL, W. R. K. Feb. 28, 1941, No. 2732. [Class 80 (i)] Consists in means for imparting continuous or intermittent movement to a sprocket wheel by a continuously-rotating chain-driven sprocket wheel or a number thereof. A pair of sprocket wheels 3, 4 with a common hub 3a keyed to a shaft 5 are driven by a chain consisting of a series of links 7 having rollers 8 of sufficient length to embrace the teeth of both the sprockets 3, 4 and to engage the teeth of the sprocket 1 to be driven which teeth penetrate between or overlap those of the sprockets. 3, 4. In a modification, each sprocket 3, 4 has a separate chain and the chains are connected by cross-members which may be located regularly or irregularly several links apart to drive the sprocket 1 intermittently. In a still further modification, a single sprocket and chain are used, the chain carrying lateral projections to engage the teeth of the sprocket 1 which overlap the teeth of the chain-driven sprocket. Where intermittent drive is imparted, the driven sprocket may be returned to its original position after each movement, by a spring or other means.
Patent GB-1031483-A (GB)
Title: Cyanine dyes, process of making them and photographic elements containing them
IPC: C09B23/10
Filed: 1963-01-22
Abstract: Cyanine dyes of formula <FORM:1031483/C4-C5/1> where R and R2 are alkyl, sulphoalkyl or carboxyalkyl, in which the alkyl group has 1-4 carbon atoms, R1 is hydrogen or alkyl, l and m are 0 or 1, n is 0, 1 or 2 and if l and m are 0,Z1 and Z2 complete a benzothiazole, naphthothiazole, benzoxazole, naphthoxazole, benzoselenazole, naphthoselenazole, 2-quinoline or isoquinoline nucleus, or if l and m are 1, Z1 and Z2 complete a 4-quinoline nucleus, are sulphonated by heating with sulphuric acid to introduce at least one sulpho group which is directly bonded to a nuclear carbon atom, the positive charge on the nitrogen atom being neutralized by a charged sulpho substituent. The dyes may be used in filter or anti-halation layers of silver halide emulsions. Sulphur trioxide may be used in addition to sulphuric acid and ferric chloride may also be used if sulphonation is difficult.
Patent GB-123175-A (GB)
Title: Improvements in and relating to Refractory Material used in Surface Combustion Processes.
IPC: C04B35/532
Filed: 1918-02-18
Abstract: 123,175. Marks, E. C. R., (Soc. Anon. Italiana G. Ansaldo & Co.). Feb. 18, 1918. Porous compositions.-A porous refractory material for use in surface-combustion processes in which a combustible gaseous mixture under pressure is employed consists of fragments of graphite agglomerated with tar or the like, the volatile component being eliminated on ignition.
Patent GB-509854-A (GB)
Title: Improvements in or relating to the treatment of filaments, threads or yarns
IPC: D01D10/04
Filed: 1938-01-29
Abstract: 509,854. Delivering threads. LUSTRAFIL, Ltd., and BARKER, S. W. Jan. 29, 1938, No. 2888. [Class 120 (ii)] [Also in Group IV] To compensate for expansion or contraction of continuous threads or filaments during treatment such as, drying, washing, or bleaching, the threads are lapped around a pair of rollers of the kind shown in Figs. 1, 2 comprising portions having uniform, or varying conicity, or consisting of conical portions associated with cylindrical portions, or consisting of stepped portions, which may be of dog-toothed section, (Fig. 5). The spacing of the threads is automatically maintained by arranging the rollers on skew axes, or by passing the thread additionally over a bar inclined to the axes of a pair of parallel rollers or inclined to a plane symmetrical with the axes of a pair of skew rollers. The rollers may be provided with grooves of V-section.
Patent GB-491453-A (GB)
Title: Improvements in the production of hydrocarbon gases by hydrogenation of carbonaceous materials
IPC: C10G1/00
Filed: 1937-02-02
Abstract: 491,453. Gasefying solid carbonaceous materials. INSTITUTION OF GAS ENGINEERS, and DENT, F. J. Feb. 2, 1937, No. 3047. [Class 55 (i)] Gas of high calorific value is obtained by heating the solid residue of the carbonization or partial carbonization of coal or other carbonaceous material in a current of hydrogen or gases containing hydrogen with a pressure substantially above atmospheric and at a temperature above 500‹ C. and at 800‹ C. or above during at least a part of the process. Preferably, the temperature is raised progressively or continuously during at least a part of the process, through the range 600-900‹ C. ; the maximum temperature is usually not above 1000‹ C. ; the rate of heating may be 3-12‹ C. per minute. Pressures specified are from 5 to 100 atmospheres. Increased rate of heating gives increased percentage of hydrocarbon gases in the stream, decreased thermal yield of hydrocarbons per ton of fuel, and a decreased proportion of solid fuel gasefied ; increased rate of passage of hydrogen favours thermal yield and gasefication at the expense of calorific value ; increased pressure favours yield and calorific value. The fuel may be heated externally, or by the hydrogenating gas with or without partial combustion. In examples, semi-anthracite, lignite, strongly and weakly coking coals, were carbonized at various temperatures, and the residues heated in hydrogen, or hydrogen and carbon monoxide, the carbonization temperature, gasefication temperature, pressure, rate of heating, and rate of supplying hydrogen being varied.
Patent GB-552352-A (GB)
Title: An improved oil burner
IPC: F23D5/00
Filed: 1942-03-09
Abstract: 552,352 Oil burners. EVERY, C. E. (Burley, C. M.). March 9, 1942, No. 3087. [Class 75 (i)] Oil dripping on powdered pumice or other discrete fire-resisting substance in a pan 9 is ignited and burns with air passing downwardly around the pan 9 into an oval sectioned combustion chamber 2 delivering into the furnace, range, stove or other appliance to be heated. The combustion chamber is formed with or carries a wall 8 surrounding the pan to form the air passage. The pan is formed on a conical member 10 having a flange 12 which rests on the bottom of the combustion chamber and is formed with holes 16 to drain away unburnt oil and admit additional air for combustion. The chamber 2 is provided at its open end with flanges 4 by which it is secured to the stove.
Patent GB-1153262-A (GB)
Title: Lawn Shears
IPC: A01G3/06
Filed: 1968-01-19
Abstract: 1,153,262. Hand shears. WOLF-GERATE G.m.b.H. 19 Jan., 1968 [25 Jan., 1967], No. 3087/68. Heading B4B. [Also in Division E2] Lawn shears comprise a fixed blade 10 connected to a fixed handle 12, a movable blade 16 which is pivotally connected via, a bifurcated hinge memer 20 to a movable handle 14, the blade 16 being movable away from the blade 10 by moving the handle 14 towards the handle 12 against the action of a spring 24, such movement causing the axis of the pivot pin 19 of the blade 16 to move across the blade 10, and the hinge member 20 is provided with a pin 8 slidable in an elongate hole 9 in the blade 10 to ensure that the member 20 is guided in the direction of movement of the pivot axis of the blade 16. A pin 31 secured to the blade 10 serves as a stop for the blade 16.
Patent GB-1466488-A (GB)
Title: Modular digital computer systems
IPC: G06F13/14
Filed: 1975-01-24
Abstract: 1466488 Data processing INTERNATIONAL BUSINESS MACHINES CORP 24 Jan 1975 [15 Feb 1974] 3097/75 Heading G4A Each of a plurality of processors PU has a control program store CS, and a common control unit CU, in response to an error in one of the processors, causes a valid processor to store its status in its control store and controls a switching network SW to transfer the status of the faulty processor to the valid processor whereby at least the functions of faulty units may be taken over by the valid processor. After such transfer of tasks to a valid processor, an instruction counter in the control unit may be preset alternately according to the processing requirements of the two processors to maintain the required balance of task allocation in the valid processor. Alternatively a different fixed ratio of task allocation may be maintained. The control unit may be controlled by a diagnostic unit which identifies the erroneous processor and possibly faulty units within that processor, and may also be a program controlled processor. The whole system may be on an integrated circuit wafer.
Patent GB-547742-A (GB)
Title: Improvements in or relating to propeller blade mountings
IPC: C07C45/38
Filed: 1941-03-07
Abstract: 547,742. Screw propellers. UNITED AIRCRAFT CORPORATION. March 7, 1941, No. 3125. Convention date, March 9, 1940. [Class 114] A variable-pitch propeller blade is mounted rotatably in a hub-socket by means of rollers or balls which engage annularracesformed directly in the bladeshank and the socket, separate races being dispensed with. The hub 10 shown in the Figure is formed with sockets 12, 14, 16 each carrying a blade 20 on rows 22 .. 30 of balls which engage races 32, 34 in the blade and socket. The races are hardened by heat-treatment. The balls are introduced through holes 38 .. 46 formed in bosses 36 on the sockets. After the balls have been introduced and pre-loaded, plugs 52 are inserted in the holes, the plugs are secured by screw-threads, or by a wire 53. A packing- ring 60 is inserted in a groove 58 in each socket. Each blade-shank may be formed with integral teeth 64 for engaging pitch-changing gear, and may be closed by a cap 66 carrying a balance-weight 72. The shank may be integral with or attached to the blade.
Patent GB-177314-A (GB)
Title: Improvements in insulating feet for phonographs
IPC: A47B91/12
Filed: 1921-01-25
Abstract: 177,314. Prickett, W. H. Jan. 25, 1921. Castor-cups &c.-An insulating foot for phonographs comprises a block 10 of indiarubber, in which is inserted a cup-shaped member 11 of glass, to receive a leg of the phonograph, or a castor thereon. The rubber block may be seated in a glass base 15.
Patent GB-1059492-A (GB)
Title: The polymerisation of episulphides
IPC: C08G75/08
Filed: 1964-01-24
Abstract: Episulphides are polymerized using as a catalyst an oxide of Na, Mg, Al, K, Ca, Fe, Co, Ni, Sr, Sn, Sb, Ba, Pb and Bi to form crystalline or elastomeric products.  Specified episulphides are styrene sulphide, allylthioglycidyl ether, thioglycidyl acrylate, thioglycidyl methacrylate; 3,4 - epoxy - 1,2 - butylene sulphide, vinylcyclohexane sulphide, butadiene mono-episulphide, ethylene sulphide, butylene sulphides, cyclohexan sulphide, propylene sulphide, and mixture of these.  Suitable reaction conditions are 0.01 to 10% by weight of catalyst, a temperature of 20 DEG  to 100 DEG  C. and a reaction time of up to 48 hours; an inert organic solvent may optionally be used.  Interpolymers of propylene and/or butylene sulphide with allylthioglycidyl ether, thioglycidyl acrylate, thioglycidyl methacrylate, 3,4 - epoxy - 1,2 - butylene sulphide, vinylcyclohexane sulphide and/or butadiene mono-episulphide may be cured by conventional vulcanization techniques.  The examples describe the polymerization of (1) to (9) ethylene sulphide, (10) propylene sulphide, and (11) 1,2-butylene sulphide and allylthioglycidyl ether, the interpolymer formed being curable.