baber/WOPTO huggingface dataset:
Patent GB-763096-A (GB)
Title: Improvements in or relating to liquid dispensing apparatus
IPC: B67D7/08
Filed: 1954-03-09
Abstract: 763,096. Zeroizing mechanism. WAYNE TANK & PUMP CO., Ltd. (Wayne Pump Co.) March 9, 1955 [March 9, 1954], No. 6867/54. Class 106 (1). [Also in Group XVIII] The pump motor of a petrol pump or the like drives the zeroizing shaft of the usual counter, to set the counter back to zero, at the beginning of each dispensing operation, through a transmission which includes a worm 32, carried by a shaft 26 which moves longitudinally against the bias of a spring 30'when the counter reaches zero so that the resistance to the drive is increased: the longitudinal movement of the shaft 26 is employed to unlock a member in an epicyclic gear connected between a worm wheel driven by the worm 32 and the zeroizing shaft so that the drive to the zeroizing shaft is discontinued and the zeroizing shaft is permitted to make the reverse movement necessary to permit the usual shutters to be raised from the drums of the counter. As illustrated the worm 32 drives a worm wheel (not shown) connected to the planet carrier of the epicyclic gear shown while the sun wheel 68 is connected to drive the zeroizing shaft and the annulus 76 is locked when the drive is to take place. When the hose nozzle is lifted from the usual rest to begin a dispensing operation the rest moves to start the pump motor and to turn a shaft 88 carrying a link 96 so that a notch 106 in a pawl 98 pivoted at 100 to the link 96 engages beneath a pin 104 on a latch 86 to raise the latch against a torsion spring 94 out of engagement with a catch 50 which is then slid on the shaft 26 by springs (not shown) into engagement with the notched periphery of the annulus 76. The ,latch 86 also releases a sear 44 mounted between collars 40, 42 on the shaft 26 so that the shaft is moved, together with the sear 44, to the right by the spring 30. Continued movement of the shaft 88 brings the upper end of the pawl 98 into engagement with the casing 18 of the mechanism so that the pawl is turned against the bias of a torsion spring 102 from under the pin 104 to permit the latch 86 to fall on to a lug 48 on the sear 44 which retains it out of engagement with the catch 50. When zeroizing is completed the increased resistance of the counter causes the worm 32 and shaft 26 to move to the left against the bias of the spring 30 so that a spacing collar 55 on the shaft 26 pushes the catch 50 out of engagement with the annulus 76 while the sear 44 is moved out of engagement with the latch 86 to permit this to fall and lock the catch 50 in its retracted position. The drive to the shaft 26 is through V-belt 28 while the drive from the shaft 70 to the zeroizing shaft is through a chain and sprocket. Specification 740,645 is referred to.
Patent GB-252823-A (GB)
Title: Improved machine for topping root crops
IPC: A01D23/02
Filed: 1925-03-13
Abstract: 252,823. Cervinka. J. March 13. 1925. Crops, root, topping-machines for.-A turnip or like root topping- machine is provided with one or more frames each supporting a pair of sledge runners, a pair of guide wheels or like feeler members and a topping knife and each pivoted to the main frame by a double arrangement of parallel links permitting the tool-carrying frame to swing both horizontally and vertically. The main frame 8 has a transverse front portion 8<a> carrying vertical pivot bolts 11 upon which are mounted members 9b that are connected through parallel pairs of double links 9 with members 9a pivoted on vertical bolts 10 carried on an auxiliarv frame 6. This frame is provided with sledge runners 1 and has pivoted vertical members 7a from which pairs of links 7 converge to an inverted U-shaped stirrup 4, one leg 4a of which carries a pair of inclined guide wheels 2 and the other leg 4b carries a vertically adjustable S-shaped knife 3. A leaf spring 5 extends from the frame 6 under the stirrup 4. The frame 6 may be raised to lift the roots out of action by a handlever 14 actuating a shaft 13a carrying an arm 13 from which the frame is hung by a chain 12.
Patent GB-1003694-A (GB)
Title: Improvements in and relating to motor control circuits
Inventor: PROWSE DONALD WINDSOR
IPC: B66B1/30
Filed: 1961-02-24
Abstract: 1,003,694. Control of D.C. motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 17, 1962 [Feb. 24, 1961], No. 6893/61. Heading H2J. [Also in Division G3] A D.C. motor M is connected through changeover switch S to a grid-controlled converter C supplied by transformer TR, regenerative braking being introduced by changing-over switch S and operating the converter C as an inverter. An input signal for circuit GC, which controls the phase relationship between the anode and grid voltages, is obtained through servo amplifier A2 and limiter L1 from servo amplifier A1 subjected to a speed-error signal. A feed-back signal representing the current through the converter is obtained by current transformer CT. In order to prevent excessive armature current when the switch S is operated to introduce regenerative braking, the servo amplifier A1 comprises pentodes 5, 6, each valve having applied to its control grid 7, 8, a potential derived from the error signal. The screen grids 9, 10, are associated with switches R, FW, ganged with the switch S, the screen grid voltage being obtained from a voltage divider a part of which is shunted by a capacitor. For rapid reduction of the armature current, as required before the switch S is changed over, capacitors Co1, Co2, are discharged and by-passed by contacts FW<SP>1</SP>, R<SP>1</SP>. When the capacitors are in circuit, the output from amplifier A1 rises slowly to reduce the effect of the error signal.
Patent GB-824662-A (GB)
Title: A bearing bush for use on mobile hospital equipment
Inventor: BOOT ARTHUR
IPC: B60B33/00
Filed: 1956-03-07
Abstract: 824,662. Bearings. CAPON HEATON & CO. Ltd. March 1, 1957 [March 7, 1956], No. 7113/56. Class 12 (1). A bearing bush comprises inner and outer concentric metal sleeves 5, 6, Fig. 1, spaced by an annular insert of electrical insulating material 7 in which there is embedded a resistor 8 having a resistance of between 0.5 and 5.0 megohms. In a modification, a resistor 8, Fig. 2, is disposed in the annular space between a pair of inserts 7. In a further modification, the sleeves 5, 6 are spaced by rubber coated with conductive furnace black. The invention is applied to a support for an electrically conductive castor wheel on mobile hospital equipment.
Patent GB-1031652-A (GB)
Title: Modified polyester fibres and process for producing them
Inventor: DELVES ALLAN KENNETH
IPC: D01F11/08
Filed: 1964-02-20
Abstract: Linear polyester or copolyester fibres having substantivity towards acid dyestuffs are produced by melt-spinning the polymer to form a filament and applying to the polyester stream after it emerges from the spinneret orifice, and before its temperature has fallen below the melting point, a basic additive in liquid form. The additive may be a polyamine containing at least two -NH groups or a tertiary amine.  The polyester or copolyester prior to being melt-spun may contain a compound capable of reacting with the additive, or the solidified filament, may be treated with the compound, e.g. immediately prior to cold drawing.  The compound may be a mono- or polyfunctional acylating or alkylating agent, a mono- or polyisocyanate or a compound capable of forming with a tertiary amine a quaternary ammonium salt.  The polyester may be poly (ethylene terephthalate).  The additives used in the examples include N-methyl-diethanolamine dibenzoate, a 10% solution of cetyl-dimethylamine in methanol, a 10% solution of diphenylamine in methanol and diethylaminoethyl nicotinate.
Patent GB-547583-A (GB)
Title: Manufacture of pile fabrics and tufted yarns or threads for incorporation therein
IPC: D03D27/00
Filed: 1941-06-07
Abstract: 547,583. Chenille; pile fabrics; tufted yarns. MORTON SUNDOUR FABRICS, Ltd., and MORTON, Sir J. June 7, 1941, No. 7231. [Classes 120 (iii) and 142 (iv)] . Tufted yarn for incorporation in a pile fabric comprises tufts some of which are destructible by treatment with a solvent to which the other tufts are resistant and a core or other binder which is also resistant to the solvent. Gelatine, alginic acid or a salt of alginic acid may be used for the destructible tufts so that they may be destroyed in an ordinary cleansing or scouring liquid. To obtain the tufted or chenille yarn, a cloth may be woven which consists of warps of cotton yarn and tuft-forming wefts some of which are of gelatine fibre and others are of cotton, and the cloth is cut warpwise to form the yarns. The chenille yarn may be woven as weft into a pile fabric having cotton warps, and the resulting fabric may be scoured with soap and soda ash to destroy the gelatine tufts to obtain a pile fabric having groups of cotton tufts interspersed amongst spaces presented by the cotton warps and pile-free sections of the cotton weft.
Patent GB-566045-A (GB)
Title: Improved means for sealing the joint between the surfaces of two parts at least one of which is formed of porous material
IPC: F16J15/20
Filed: 1943-05-07
Abstract: 566,045. Bearings. GLACIER METAL CO., Ltd., and BATE, J. May 7, 1943, No. 7264. [Class 12 (i)] [Also in Group XXVI] Means for sealing the joint between a porous lining, coating, &c. and the surface of a bearing, slide or shaft to which it is applied, comprises strips or rings of resilient material disposed therebetween. The joint between a sintered antifriction metal bearing bush 4 and a housing 3 having a lubricant reservoir 6, is sealed by rings 9 of cork, synthetic rubber, &c. mounted in grooves in the housing.
Patent GB-805706-A (GB)
Title: Improvements relating to the cooling of hot crude coal gases and the production of purified condensed products
Inventor: SMITH THOMAS BIDDULPH
IPC: C10K1/04
Filed: 1956-03-08
Abstract: 805,706. Scrubbing gases. NORTH WESTERN GAS BOARD. Feb. 14, 1957 [March 8, 1956], No. 7273/56. Class 55 (2). Apparatus for cooling gases having gaseous noxious constituents soluble in water, e.g. hot coal gases, comprises an empty tower 1 into the lower parts of which water is sprayed by means 2, the hot gas being admitted at 3 to pass through the spray to an off-take pipe 6 ; the water draining into a tank 4 from whence it flows over a weir 7 to a tank 8 to be pumped through spray means 11 into a tower 12 which is exhausted by a vacuum pump 13 whereby the noxious gases are liberated from the water which falls into a tank 14 to be pumped by a pump 15 to a cooling tower 16. In this way, the cooling of the water in the cooling tower does not release noxious gases into the atmosphere. The cooled water is drawn by a pump 18 from the sump 17 to be re-sprayed at 2 into the tower 1. The gases withdrawn by the exhauster 13 are passed to a condenser 19, the gases passing to the off-take 6 and the condensate to the sump 17. Naphthalene and oils collect as a froth on the surface of the water in the tank 4 and are held back by a barrier 10. The froth is fed at intervals into a vessel 21 having heating coils 22, a delivery pipe 24 passing to the tops of well-lagged settling tanks 25. The naphthalene &c. boils at 30-40 C. and generates a pressure in the vessel 21 which discharges the whole of the contents, including water, into the settling tanks 25. One tank is filled whilst the other is quiescent, and after, say, 24 hours the naphthalene is discharged through a pipe 26 to a cooling pan 27 for crystallization, the product then being treated in a centrifuge 28. The water &c. is returned to the tank 4 by a pipe 29.
Patent GB-567578-A (GB)
Title: Apparatus for instruction or amusement
IPC: A63F3/04
Filed: 1944-04-21
Abstract: 567,578. Educational appliances. KRASSILNIKOFF, N. S. April 21, 1944, No. 7302/43. [Class 146 (ii)] In an educational appliance of the question- and-answer type, a panel 10A bearing a map or diagram has distributed electrical contacts 12A in the form of eyelets, which represent places on the map or parts of the diagram and are connected by a sheet of metal foil on the back of the panel. The panel is separated from a base-plate 16A, having a sheet of metal foil 31 on its face, by a rotatable disc 36 of insulating material. The disc 36 has around its edge the names of places represented by the eyelets 12A, and also contains perforations, which are so located that rotation of the disc brings a perforation beneath that one of the eyelets 12A. that corresponds to the place-name appearing in a notch 42 in the panel. A movable plug 46, if inserted in the proper eyelet, passes through the aperture in the disc 36 and, by making contact with the foil 31 on the baseplate, completes the circuit of a lamp or bell 23A.
Patent GB-595666-A (GB)
Title: Improvements in or relating to cases or holders for cosmetic or analogous material in stick form
IPC: A45D40/06
Filed: 1940-04-24
Abstract: 595,666. Lipstick and like holders. ROSENFELDER, E. April 24, 1940, No. 7391. [Class 18] A case for cosmetic or similar material of stick form comprises a cup 1 for supporting the stick 2, a flexible strip shutter 13 normally closing an opening in the top of the case, and a tubular member 3, rotatable with respect to the cup, and shutter and having helical slots 5, 6 engaged by pins 7, 15 provided on the cup and shutter. Rotation of the member 3 operates the shutter to uncover and cover the opening and to propel and retract the stick through the opening. The rotatable member 3 is fixed to a base 4 and is grooved near the base to receive a projection 10 of the casing 9 which surrounds the member. A straight groove 11 is provided in the casing 9 extending in the longitudinal direction of the casing and is engaged by the pin 7 of the cup projecting through the slot 5 of the rotatable member. Alternatively the case may comprise an inner rotatable member 23 provided with slots 2711, 271 and 29 and housed in an intermediate fixed member 24 having two longitudinally disposed slots, a casing 25, having one slot surrounding both members. Pins 34, 32 are provided on the shutter 35 and cup 21, the pin on the shutter protruding through one slot in the intermediate member and engaging a slot in the inner member, and the pin on the cup protruding through the other slot in the inner member and intermediate member and through the outer casing. To propel the stick out of the case, the pin protruding from the cup is pushed upwards causing the inner member to rotate and effect the opening of the shutter. Alternatively the pin on the shutter may protrude through the casing so that the opening of the shutter causes the inner member to rotate to propel the cup and stick.
Patent GB-1390736-A (GB)
Title: Thermal and acoustical insulating boards
IPC: C04B26/26
Filed: 1973-02-15
Abstract: 1390736 Insulating materials GREFCO Inc 15 Feb 1973 [9 March 1972] 7496/73 Heading B2E [Also in Division D2] A thermal and acoustical insulating board comprises a mat of a mineral aggregate, a defibrillated organic fibrous material and a binder, the mat being coated on at least one major surface with a coating containing glass fibres. In a preferred embodiment an aqueous slurry of a thermally expanded mineral aggregate, defibrillated cellulosic fibrous material, a binder and clay are mixed, deposited on a board forming machine, then partially dewatered to form a mat which is coated with a composition comprising glass fibres, defibrillated cellulosic fibres, clay and a binder, and the coated mat is then de-watered, pressed and dried. The coating may be applied as an aqueous slurry by roller coating spraying or flow-coated. In the mat or the coating, the binder may be bituminous, preferably asphalt, and organic fibres are preferably cellulosic such as pulp derived from waste paper, kraft paper, corn stalks, bagasse or sugar cane. Other fibrous materials may be included in the mat, for example asbestos, rock, slag and glass fibres. Clays which may be incorporated in either the mat or coating include china, ball, fire, stoneware, dusting, bleaching, calcined, colloidal enamel and filler clays, bentonite, fullers earth or diatomaceous earth. The coating may, in addition, include starch or fire retardants such as boric acid, borax or ammonium sulphate. The thermally expanded material is preferably perlite or exfoliated vermiculite.
Patent GB-1203442-A (GB)
Title: Light stabilized pvc compositions
Inventor: CHAPMAN ANDREW COLIN
IPC: C08K5/39
Filed: 1967-02-16
Abstract: 1,203,442. PVC light stabilizers. ALBRIGHT & WILSON (MFG.) Ltd. 16 Feb., 1968 [16 Feb., 1967], No. 7561/67. Heading C3P. PVC containing a heat stabilizer contains as light stabilizer a metal dithiocarbamate of the formula in which each R is optionally substituted alkyl, aralkyl, alkaryl or aryl of up to 16 carbons or one R may be hydrogen or the two R's together with the nitrogen form a 5- or 6-membered heterocyclic ring and M is a metal of valency n where n is 2 or 3, preferably nickel. The heat stabilizer may be a metal soap, tin compound or lead phthalate or basic carbonate. A phenolic or sulphur-containing antioxidant may be present and the composition may be rigid or plasticized with a phosphate or carboxylate ester plasticizer.
Patent GB-771550-A (GB)
Title: Improvements in or relating to magnetically controlled electronic valves
IPC: H01J21/18
Filed: 1955-03-16
Abstract: 771,550. Electron beam apparatus. SIEMENS & HALSKE AKT.-GES. March 16, 1955 [March 16, 1954], No. 7697/55. Class 39(1). The auxiliary electrodes of the beam valve described in Specification 709,728 are designed as serrated pole-pieces of the magnetic control system. The serrations of the pole-pieces 4, 5 are disposed between the rod-shaped anode 3 and cathode 1, the focussing electrode 2, which is also rod-shaped, being at cathode potential or lower. The electrodes 4, 5 are of mumetal and bear tightly against the wall of the tube, forming a relatively small non-magnetic gap between the electrodes 4, 5 and the head-pieces 7, 8 of a pick-up sensitive to a sound recording medium 9. Figs. 4, 5 show auxiliary electrodes 12, 13 as solid blocks of ferromagnetic material with three contact pins projecting through the envelope from each block and adapted to engage the sockets of two corresponding magnetic yokes 14, 15 in an external magnetic circuit. The other projecting pins connect to the anode and filament contacts 16, 17, 18.
Patent GB-1373881-A (GB)
Title: Ultrasonic inspection system and apparatus
IPC: G01N29/06
Filed: 1972-02-18
Abstract: 1373881 Ultrasonic inspection; ultrasonic probes W A GUNKEL 18 Feb 1972 [22 Feb 1971 (3)] 7736/72 Headings H4D and H4J  An ultrasonic inspection system includes a number of transducers mounted adjacent an object to be inspected for simultaneous inspection of adjacent sections of the object, a plurality of means connected to a pulse generator for the transducers and to a different one of said transducers to measure the thickness of the object at each adjacent section and means connected to each measuring means for indicating the presence of a discontinuity in at least one of said sections. In a portable apparatus for testing the ends of natural gas transmission pipes, a row of transducers 10-13 is rotated around the inside of the pipe on a shaft (16) mounted on a tripod support (18) driven by a motor (17, Fig. 3, not shown). Pulse generators 26 provide the transmitted pulses and echo signals pass to time measurement devices 28 which provide analogue signals representing the pipe wall thickness at each location. These signals are combined at 30 and the signal representing the thinnest (or thickest) wall portion is recorded on pen recorder 19. The individual thickness signals 19 also pass to circuits 32 which provide a signal to oscillator 33 if the thickness deviates by more than Œ10%. Oscillator 33 then marks the paper record in the corresponding channel 22-25. By correlating the fine channels on the record, the nature and size of the discontinuities can be determined. The time measuring circuits 28 (Fig. 15, not shown) include a bi-stable which initiates and stops the charge of a capacitor, a delay equal to the pulse transit time through the coupling medium between the transducers and the object, a threshold detector and a zero crossing detector. Ultrasonic probe, Fig. 10.-The transducers themselves comprise aluminium casings 131, with a cork lining 132. The casing carries a ring 126 which bears against boss 124 to prevent the transducer being ejected from the carrier (119, Fig. 11, not shown) by spring 125. Inside the casing piezo electric crystals 140, 141 are supported on inserts 137, 138 made from glass impregnated epoxy which provides a temperature stable coupling medium to the object 111. Electrical connection to the crystals is via coaxial cables 134, 135 and the brass coating of cork insulator 142. The transmitting and receiving crystals are further insulated by air gaps 147. A rubber filler plug 146 protects the crystals from a coupling medium (water) introduced through conduit 136 and which is ejected through passages 148 in the inserts 137, 138. The four transducers are mounted in channels in a further aluminium block which also has lubricating ducts (Fig. 12, not shown). The transducers fit into slightly oversize channels thus allowing limited pivoting to take account of any roughness in the surface of the object 111.
Patent GB-1376884-A (GB)
Title: Carrier for flexible printing plates
IPC: B41F27/14
Filed: 1973-02-16
Abstract: 1376884 Clamping devices WILHELM BARENSCHEE 16 Feb 1973 [16 Feb 1972] 7777/73 Heading B6C A clamping device for securing a flexible printing plate on to a curved saddle comprises a tube 4 having a projection 8 along the length thereof adapted to engage a bent-over end of the printing plate 2 and being biased by a torsion spring in a direction to hold the plate on the saddle. The bias is preferably by means of a flat torsion spring 9 secured at one end to the saddle and at the other to the tube 4. The tube 4 is rotatable in a groove formed between the saddle and a bar 6 secured to the saddle by screws 7. A saddle may have one such device at one end only or may have one at each end, in the latter case location pins are used to locate the plate correctly on the saddle.
Patent GB-720832-A (GB)
Title: A slate, blackboard or like writing board
IPC: B43L1/02
Filed: 1953-03-20
Abstract: 720,832. Slates. BATU. March 20, 1953, No. 7787/53. Class 146 (2). A slate, blackboard or like writing board, comprises a grooved frame 1 carrying transverse and longitudinal reinforcement wires, strips, or bamboo canes 3. The frame is half-filled with cement or plaster 5 and when this is nearly set a cement or plaster 4 of contrasting colour is poured in until the frame is filled. Strips 6, overlapping the cement, may be secured to the frame to keep the written matter clear of any adjacent surface and so prevent undesired erasure.
Patent GB-947503-A (GB)
Title: Improvements in or relating to data displaying cathode ray tube arrangements
Inventor: WARD RONALD ARTHUR
IPC: H01J29/70
Filed: 1961-03-03
Abstract: 947,503. Cathode-ray tube circuits. MARCONI CO. Ltd. Sept. 29, 1961 [March 3, 1961], No. 7818/61. Heading H4T. To position a cathode-ray tube (C.R.T.) beam at equi-spaced points along a line in a predetermined direction a main deflection system 3 is fed with waveform OF and an auxiliary deflection system 4 is fed with waveform COF ; frame deflection is incorporated, together with known means for causing the arrested beam to trace a symbol. The C.R.T. may be of the direct-view storage kind.