baber/WOPTO huggingface dataset:
Patent GB-1457598-A (GB)
Title: Wide-chart display with small-span oscillographic recording instruments
IPC: G01R17/00
Filed: 1974-01-31
Abstract: 1457598 Recording apparatus HEWLETTPACKARD CO 31 Jan 1974 [25 June 1973] 04585/74 Heading G1J Some or all of the channels of a multi-channel strip chart recorder, in which each channel includes an amplifier controlling a writing means movable over a discreet strip of chart, are used to obtain a wide chart recording of a single input variable, the total recording being built up of correctly registered portions on adjacent chart strips associated with the different channels. The input signal is amplified in each channel by N times the amount necessary to produce a full-scale recording of the signal in one channel (N is the number of channels used) and the signal in each channel is offset so that the maximum signal level applied to the writing means of one channel corresponds to the zero level signal applied to the writing means of an adjacent channel. In Fig. 1, each channel has a pre-amplifier 11 with a zero offset control 15, a servo-amplifier 19, and a galvanometer 23 driving a pen or stylus. With the zero offset by equal amounts but in opposite senses in the two channels shown (N = 2), the trace of an input sine wave signal VSIG would comprise two separate but registering traces as shown in Fig. 4. In a modified circuit Fig. 6A, (not shown) preamplifiers without zero offset are used, position controls in the form of potentiometers being included between the pre-amplifiers and servoamplifiers. This may be further modified Fig. 6B, (not shown), by using a single pre-amplifier (41) the output of which is applied to the parallel channels of the recorder circuit.
Patent GB-804837-A (GB)
Title: Tropane derivatives
Filed: 1956-02-14
Abstract: The invention comprises ethers of the tropine and q -tropine series, of the general formula: <FORM:0804837/IV (b)/1> (wherein R represents C2H5, C3H7 or C4H9, and Y and Z represent similar or dissimilar aromatic radicals which may be alkyl-, alkoxy- or halogen-substituted), and their salts, and the preparation thereof by reacting tropine or q -tropine derivatives of the general formula: <FORM:0804837/IV (b)/2> with a methane derivative of the general formula: <FORM:0804837/IV (b)/3> (wherein U represents hydrogen and V chlorine or bromine, or UV represents a diazo radical).  Examples describe the preparation of compounds in which the grouping <FORM:0804837/IV (b)/4> is benzhydryl, p- and o-chlorobenzyhydryl, p-bromobenzhydryl, p - methoxybenzhydryl and (a -naphthyl)-benzyl. Salts described are hydrobromides and 8-chlorotheophyllinates. N-Ethyl- and N-propylnortropine are prepared by hydrolysing 2 : 5-diethoxytetrahydrofurane, reacting the resulting succinic dialdehyde with acetonedicarboxylic acid and ethylamine or propylamine to produce N-ethyl-or N-propyl-nortropinone, and hydrogenating these compounds in the presence of "Raney" nickel (the word "Raney" is a Registered Trade Mark).  N-Ethyl-q -nortropine is prepared by reducing N-ethylnortropinone with sodium and absolute ethanol.  Specification 708,911 is referred to.
Patent GB-565222-A (GB)
Title: Improvements in and relating to universal joints
IPC: F16D3/205
Filed: 1943-03-22
Abstract: 565,222. Universal joints. THOMPSON PRODUCTS, Inc. March 22, 1943, No. 4666. Convention date, Feb. 5, 1942. [Class 80 (ii)] A universal joint has a hollow member 10 having a cylindrical bore 16a receiving a ball member 11b on a shaft end 11a and cylindrical bores 17a, 18a receiving rollers mounted on a cross-pin 20 fixed to the ball member 11b. The member 10 is rockingly carried by cylindrical bearing faces 40, 41 in an outer housing 14 fixed to the other shaft end 12. Rubber 42 or like vibration absorbing medium, preferably under compression, is arranged between the inner and outer members 10, 14. A spring 36 acts between the housing 14 and the ball member 11b. The housing 14 has an easilydetachable cover 28 with a flexible dust shield 35 and contains lubricant, preferably in powder form.
Patent GB-269830-A (GB)
Title: Improvements in or relating to shields for the hand
IPC: A41D13/08
Filed: 1927-02-19
Abstract: 269,830. Boxall, L. R. Feb. 19, 1927. Finger stalls; hand coverings.-A shield for protecting the hand during operations such as bread cutting comprises a thumb-covering part 4 made, preferably, of thin sheet metal and a crutchcovering part 2. The part 2 is suitably curved to correspond with the crutch part of the hand and is curved at the top 6 to deflect a slipping knife. A finger-covering part 3 may be also incorporated in the device, and the surfaces at 7 may be roughened or embossed.
Patent GB-1207577-A (GB)
Title: Aqueous solutions of polyamide acids
Inventor: REYNOLDS REGINALD JOHN WILLIAM
IPC: C08G73/10
Filed: 1968-01-30
Abstract: 1,207,577. Laminates; polyamide films and fibres. IMPERIAL CHEMICAL INDUSTRIES Ltd. 10 Dec., 1968 [30 Jan., 1968], No. 4778/68. Addition to 1,121,325. Headings B5B and B5N. [Also in Divisions B2 and C3] The invention of Specification 1,121,325 (which relates to aqueous solutions of salts of defined amines and polyamide acids and their use in the formation of films, coatings and laminates) is modified in that triethylamine is used as the amine.
Patent GB-326310-A (GB)
Title: Improvements in and relating to microphones
IPC: H04R21/02
Filed: 1929-02-13
Abstract: 326,310. Graham & Co., Ltd., A., Stott, W., and Rickets, W. J. Feb. 13, 1929. Variable resistance throatoperated transmitters. - The movable electrode 7 of a throat-operated or similar microphone is carried by a resilient member 8 which bears only against the central portion of the diaphragm 10. The electrodes are of carbon, the fixed electrode 1 being mounted in a metal cup 5 secured to but insulated from the rear cover 3. The movable electrode 7 is carried by a resilient member of steel or phosphor bronze with outwardly extending spring arms 8a secured thereto. The extremities of the arms 8<a> bear against a metal ring 9 which is clamped between the rear cover 3 and front cover 10. The electrodes are separated by a felt ring 6. The front cover 10 constitutes a flat or domed diaphragm which is placed against the throat of the speaker. As the nut 7<c> is held against the diaphragm by the action of the spring arms 8a, vibrations of the diaphragm are directly transmitted to the electrode 7. Electrical connections are made by screws 15 and 4<a>.
Patent GB-866075-A (GB)
Title: Improvements relating to mesh structures
IPC: A47G27/02
Filed: 1957-02-12
Abstract: 866,075. Table mats. PINCH, S. G. Feb. 6, 1958 [Feb. 12, 1957], No. 4837/57. Class 128. [Also in Groups IX and XVII]. Links 1 are moulded from rubber, nylon, or polyvinyl chloride in the form of conjoined hollow cylinders 2; the end cylinders 3 have a central small hole by which the links are threaded on wires. To make a table mat, distance tubes 10 are inserted along the ends of the structure to form a continuous edge.
Patent GB-608160-A (GB)
Title: An improved installation for pumping gravel, sludge, and similar semi-solid materials
IPC: F04D7/04
Filed: 1946-02-15
Abstract: 608,160. Pump installations. BEGG, N. F. B. Feb. 15, 1946, No. 4861. Drawings to Specification. [Class 110 (i)] An installation for pumping gravel, sludge or other semi-solids comprises a submersible pump, coupled to an electric motor, which delivers to a centrifugal pump that is not submerged. The impeller of the submersible pump may be provided with wearing plates.
Patent GB-1059271-A (GB)
Title: Quinazolin-2,4-diones and pharmaceutical compositions thereof
Inventor: O'MANT DERRICK MICHAEL
IPC: C07D239/96
Filed: 1964-02-05
Abstract: New compounds of Formula (I) <FORM:1059271/C2/1> where the benzene ring X is substituted by at least one atom or radical selected from halogen, nitro and trifluoromethyl and is optionally further substituted by an alkyl radical (but excluding the 31-Br,.31-Cl, and 41-Br compounds) are prepared by heating carbanilides II, wherein R is hydrogen or C1- 4 alkyl, in presence of an acidic catalyst (said carbanilides being preparable from o-(COOR)-anilines and phenyl-isocyanates).ALSO:Pharmaceutical compositions comprise, with diluents or carriers, quinazolines of formula <FORM:1059271/A5-A6/1> where the benzene ring X is substituted by at least one radical selected from halogen, nitro and trifluoromethyl and is optionally further substituted by an alkyl radical (but excluding simple nonsterile solutions or suspension in water or common organic solvents).  Conventional oral and parenteral preparations useful in allergic and inflammatory conditions are described.  Additional active ingredients specified are acetylsalicylic acid, phenylbutasone, cortisone and hydrocortisone.
Patent GB-458333-A (GB)
Title: Improvements relating to combined internal combustion engine and pump or compressor units
IPC: F04B39/00
Filed: 1936-02-18
Abstract: 458,333. Driving reciprocating pumps and compressors. CROSSLEY-PREMIER ENGINES, Ltd., and YEATES, A. C., Sandiacre, near Nottingham. Feb. 18, 1936, No. 4888. [Classes 8 (i) and 102 (i)] An oil or gas driven pump or compressor in which two cranks a, b, are arranged at an angle of 180‹ to each other are connected to opposed cylinders c, c<1>, and d, d<1>, of the engine and a crank e in line with the crank a is connected to the opposed cylinders f, f of a pump or compressor. The reciprocating masses in the cylinders d, d<1> are chosen to balance those in the other cylinders and the distances g, h are chosen to obtain a couple balance.
Patent GB-908094-A (GB)
Title: Improvements in or relating to gas treating of fine grained materials such as cementraw meal
IPC: F27B7/20
Filed: 1961-02-10
Abstract: 908,094. Centrifugal separators. MIAG MUEHLENBAU UND INDUSTRIE G.m.b.H. Feb. 10, 1961 [Feb. 18, 1960], No. 4960/61. Class 23. [Also in Group XII] Pulverulent materials are treated with gas in a number of tubular centrifugal separators with tangential gas inlet and outlet passages arranged so that there is a continuous spiral gas flow through the separators. Cement raw meal is preheated by exhaust gases from a cement kiln, the meal being fed into the second highest of a series of separators 1 arranged with their axes parallel. Outlets 9 for the meal extend along the lowest generator of each separator 1, troughs 10 collecting the meal and feeding it into the next lower separator 1 between its end. The gas inlets and outlets 4 are tangential and may be curved to follow the continuous spiral flow, Fig. 2. Gates 13 control the flow of the new meal through the apparatus, and a grid 7 reduces the amount of meal carried out of the top separator. The meal outlets may be at the bottom of each separator, and lead to the next but one lower separator. The axes of the separators may be vertical. The edges of the meal outlet may be radially offset, Fig. 9, or may be formed by a groove 20 in the lower surface of the separator, Fig. 10. The separators may have diameters decreasing upwardly, and each separator may be stepped or tapered upwardly, Fig. 7. Each gas passage 4 may lead into the middle of the next higher separator, and the meal outlets may lead into the gas inlet of the next lower separator.
Patent GB-1128125-A (GB)
Title: Improvements relating to tin openers
IPC: B67B7/46
Filed: 1967-02-01
Abstract: 1,128,125. Can openers. KOOPERATIVA FORBUNDET, EKONOMISK FORENING. 1 Feb., 1967 [1 Feb., 1966], No. 4996/67. Heading B8D. A can opener, having a constant drive transmitted from a hand-operated crank 10 to a feed wheel 8 through a shaft 7 to which both the members 8, 10 are rigidly secured, is provided with means for lowering a cutter wheel 22 into engagement with a can when the crank is turned clockwise, and for raising the cutter wheel when the crank is turned anticlockwise. When the cutter wheel is lowered, it is also driven, due to the engagement of toothed wheels 9, 23. A coupling member 19, also constantly driven by the shaft 7, has a radial slot 20 engageable by a lug 17 on a driving element 16 urged transversely of the shaft 7 by a spring 21 to bring the lug 17 into the slot 20. At the same time the lug 17 engages in a notch 13a in an eccentric 13 having an offset hole through which the shaft 7 freely passes. The eccentric extends through an aperture in a plate 12 guided laterally by ears 14, 15 of a plate 4 secured to lugs on the body 1 of the device. The plate 12 supports the cutter wheel 22. When the crank 10 is turned clockwise the coupling member 19 turns the driving element 16 and therefore the eccentric 13 by means of the lug 17. This action causes the plate 12 to slide and thereby lower the cutter wheel. But a cam surface 18 on the element 16 then comes against the ear 14, and the element 16 is caused to move transversely of the shaft 7 against the action of the spring 21. This movement disengages the lug 17 from the notch 13a and so the eccentric 13 is no longer moved, whereas drive to the wheels 8 and 22 continues. After cutting is completed the crank is moved anticlockwise enabling the spring 21 to assert itself and the cutter wheel 22 to be raised.
Patent GB-1463774-A (GB)
Title: Exposure indicator
IPC: G03B7/00
Filed: 1975-02-06
Abstract: 1463774 Cameras PENTACON DRESDEN KAMERA-UND KINOWERKE VEB 6 Feb 1975 [11 Feb 1974] 5049/75 Heading G2A A camera has an array of lights 1, 2, 3, 4 (preferably L.E.D.s) which are sequentially illuminated when the exposure is incorrect; the order in which they are illuminated indicating the direction in which the exposure setting members should be moved to set the correct exposure. In the embodiment of Fig. 2 a multi-vibrator 6 flashes L.E.Ds 1 and 3 alternately. When the exposure is correctly set the resistance of a photo-conductor 7 equals that of a film speed/shutter time setting resistor 8 so that a transistor 9 stays off and only L.E.Ds 1 and 3 flash. If overexposure is set the resistance of photo-conductor 7 is less than that of resistor 8 and so transistor 9 is turned on in phase with the lighting up of L.E.D. 1. Circuit 10-15 illuminates L.E.D. 4 a quarter of a cycle later, and circuit 16, 17, 19 illuminates L.E.D. 2 a half a cycle after that; L.E.D. 3 being illuminated between 4 and 2. Thus the L.E.Ds light in the order 1432. If under exposure is set, transistor 9 is turned on in phase with L.E.D. 3 and the order of lighting is 3412. In a modification Fig. 4 if the correct exposure is set the resistances of elements 7 and 8 are equal and there is no voltage at a rectifier 30 with the result that (a) a fifth L.E.D. 5 is turned on via transistors 27, 28 and (b) there is no voltage on a line 31 and this turns the other four L.E.Ds off. When the exposure is incorrectly set the fifth L.E.D. 5 is turned off-and the line 31 receives a voltage dependant on the degree to which the setting is incorrect. This causes the other L.E.Ds 1 to 4 to flash in sequence with a brightness which decreases as the setting moves towards the correct value.
Patent GB-382838-A (GB)
Title: Improvements in machines for drawing threads from fabrics
IPC: D05B9/00
Filed: 1932-02-20
Abstract: 382,838. Fabrics. ANCIENS ETABLISSEMENTS R. CORNELY ET CIE, 87, Faubourg St-Denis, Paris. Feb. 20, 1932, No. 5117. Convention date, Feb. 21, 1931. [Class 42 (i).] Openwork effects, producing. -The work plate 25 of a thread-drawing machine is hollowed out to receive the parallel feed rollers 23 which are driven intermittently through gearing 16, 14, a one-way clutch 11, a lever 9 of adjustable length, and an eccentric 7 on the main shaft. The rollers 23 are rubber covered and after they have gripped the fabric it is stretched laterally by ribs 26 on the work plate and correspondingly grooved smooth rollers 24 between the rollers 23. The cutter 28 rotates on a vertical shaft. The mounting 20 for the feed rollers can be lifted for the insertion &c. of the fabric. Specification 363,583 is referred to.
Patent GB-625645-A (GB)
Title: Improvements in power transmission systems particularly applicable to the fire control of guns
IPC: G05D3/12
Filed: 1940-03-19
Abstract: 625,645. Fluid - pressure servomotor - control systems. VICKERS-ARMSTRONGS, Ltd., SPENCER, A., and SPAINK, J. H. ABBINK-. March 19, 1940, No. 5127. [Class 135] Relates to power transmission systems of the follow-up or repeater type and of the kind in which the movement of an object, such as a gun 11, is dependent on the relative displacement of two members 2, 5, of which one is associated with the follow-up apparatus forming part of the power drive controlled by the signal. According to the invention the system, which includes a follow-up motor 3 and a valve-controlled hydraulic power amplifier 9, whose valve 12 is operated by an input shaft 14 through a differential gear 13, is provided with an additional differential gear 7 arranged between the motor and the input shaft. This gear 7 has its planet wheel driven from the valve operating shaft 15 and its function is to correct for the lag which arises not only between the input and output shafts 14, 10, of the amplifier but also between the rotors 2, 5, of the transmitting and receiving units 1, 6, associated with the motor 3. In the construction shown, the drive between the shaft 15 and differential 7 is through a small hydraulic amplifier 17. The amplifier 9 is of the construction described in Specification 625,244, and the system employing the units 1, 6 is as in Specification 606,877, [Group XXXVIII], or, alternatively the system incorporating photo-electric means as in Specification 606,876, [Group XXXVIII], may be used.
Patent GB-1300144-A (GB)
Title: Improvements in or relating to matrix display devices
Inventor: SALAM HASSAN PADDY ABDEL
IPC: G08B5/40
Filed: 1970-02-03
Abstract: 1300144 Matrix displays UNIVERSAL TELEWRITERS (PTY) Ltd 19 April 1971 [3 Feb 1970] 5147/70 Heading G5C Display apparatus comprises a matix of cells 3 each containing powdered magnetic material 8 and having an opaque wall with a window and electromagnetic means operable to transfer the material in each cell to cover or uncover the window. The cells have common front and rear walls with trapezoidal windows, and partitions between the walls with vertical projection 15 dividing each cell into two portions. The powder is moved between the portions by electromagnets 13 mounted on a member 12 which travels over the matrix; alternatively the matrix may be moved over the member 12. Selected electromagnets are energized by switches 18. To ensure that powder is moved only to one side or the other the energizing circuit is only completed when a brush 20 on member 12 makes contact with a tooth of a digitate conducto 21A or 21B whose teeth are aligned with the portions of the cells. In another embodiment the apparatus includes vertical and horizontal conductors, O, S, R each conductor having portions in front of and behind the cells. Material is moved only in a cell at the intersection of actuated row and column conductors which produce fields which respectively cause the material to rise and move laterally. If the cell thickness in the area of the window is reduced, the window can be enlarged and still be covered by the same amount of powder. Permanent magnets at each end of each cell may retain the powder in position. The powder may be in a liquid medium.
Patent GB-686911-A (GB)
Title: Improvements in or relating to hydraulic torque converters
IPC: F16H61/60
Filed: 1950-03-01
Abstract: 686,911. Friction clutches. BORG-WARNER CORPORATION.. March 1, 1950 [March 9, 1949], No. 5176/50. Class 80 (ii)., [Also in Group XXIX] In a hydraulic torque converter comprising a drive shaft 15 to which is secured a flywheel unit D welded at 66 to the pump P of a torque converter B (see Group XXIX) driving a shaft 19, and a housing A, a clutch C provides a torque path between the shaft 15 and a driven shaft 17. The clutch C comprises a heavy spacer plate 71 and a back plate 78 both secured to the flywheel member 63 and between which there is housed a pressure plate 74 of piston-like character adapted to be operated by pressure fluid which enters the pressure chamber 77 defined by the member 63, the plate 74, and a sealing ring 77a, and a driven plate 80 of the friction facing type having a hub 83 splined as at 84 to the shaft 17.
Patent GB-831471-A (GB)
Title: Electric accumulator
IPC: H01M10/08
Filed: 1957-02-15
Abstract: 831,471. Batteries. BOPP, A. Feb. 15, 1957 [Feb. 20, 1956], No. 5208/57. Drawings to Specification. Class 53. A lead accumulator has an electrolyte consisting of sulphuric acid containing a solution of a compound of fluorine and an amine or an amine compound. The fluorine compound may consist of sodium fluoride, fluoric acid or fluosilicic acid, and the other constituent may be an ethanol amine, tri-ethanol phosphate or sulphate.
Patent GB-816887-A (GB)
Title: Improvements in or relating to nose clips
IPC: A61D7/00
Filed: 1957-02-15
Abstract: 816,887. Respiratory appliances. LAXTON, R. A. Feb. 13, 1958 [Feb. 15, 1957], No. 5224/57. Class 81 (2). A nose clip, for use under water, is made with a transverse section 1, for passing below the septum, and upwardly and inwardly directed limbs 7, 8 carrying pads 9, 10 at their upper ends, the whole being made of a suitably resilient synthetic resin such as polystyrene or polyamide. The inner faces of the pads may be provided with a number of small hemispherical protuberances to increase the grip on the nose. Specification 695,963 is referred to.
Patent GB-1028007-A (GB)
Title: Improvements in electric lighting fittings
Inventor: FROST HENRY FLETCHER
IPC: F21V31/03
Filed: 1964-02-07
Abstract: 1,028,007. Electric lighting fittings. COMMERCIAL LIGHTING Ltd. Nov. 30, 1964 [Feb. 7, 1964], No. 5224/64. Heading F4R. A flood lighting lantern comprises a hollow body 1 closed by a cover glass 2 in a frame hinged to the body and containing a reflector of trough shape with flat end walls 10, the space 17 between the end wall and the end of the body housing the holders 18 for the end caps of a filament lamp 14 and being provided with air inlets and outlets 22, 23 for cooling air. The lower end of the reflector is spaced from the cover glass 3 so that air can also circulate over the inner surface of the reflector and the cover glass, the end walls of the reflector being formed with a straight edge 15 to provide an outlet 16 for the air. The holders 18 are formed of or fitted in a heavy mass of heat-conducting material 20 having a finned cover 24 outside the body to assist in the cooling. The walls 10 are slotted to allow of insertion of the lamp 14. The air outlet 23 may be located between two supporting lugs 6 for the body instead of at the end, the air inlet being provided by an offset portion in the side of the body adjacent the reflector.
Patent GB-306157-A (GB)
Title: Improvements in and relating to styluses for sound reproducing machines
IPC: G11B3/48
Filed: 1929-02-16
Abstract: 306,157. British Thomson-Houston Co., Ltd., (Assignees of Taylor, G. F.). Feb. 17, 1928, [Convention date]. Tools for reproducing.-A reproducing stylus is formed with a tip consisting mainly of an element of the tungsten-molybdenum group with an appreciable amount of carbon and preferably with an element of the iron group. The tip may be formed according to one method by mixing powdered tungsten, carbon and cobalt with an organic binder such as flour to which water and sodium hydroxide has been added and extruding to form a thin wire. The wire after drying is embedded in alumina powder in a graphite cylinder and fired at 1400‹ C. to effect sintering and furnish hard pieces which are ground to size finally with diamond dust. The tungsten and carbon may be replaced by tungsten carbide. In another method the powdered materials may be placed in a carbon mould and heated to sintering temperature whilst pressure is applied as described in Specifications 288,521 and 289,477, [both in Class 82 (i), Metals, Extracting &c.]. In this method one heating electrode may consist of a refractory element such as tungsten which is pressed into the powdered mixture and forms part of the resulting wire which is finally ground. The tip 8 may be silver soldered to a metal shank 9 as shown in Fig. 4.