baber/WOPTO huggingface dataset:
Patent GB-844619-A (GB)
Title: Improvements in or relating to methods of producing luminescent materials
IPC: C09K11/66
Filed: 1956-09-28
Abstract: 844,619. Luminescent materials. PHILIPS ELECTRICAL INDUSTRIES Ltd. Sept. 28, 1956 [Oct. 3, 1955], No. 29696/56. Drawings to Specification. Class 39(1). Method of producing lead-activated bariummagnesium-zinc silicate comprises mixing compounds of barium, magnesium, zinc, silicon and lead in which the elements are within specified atomic ratio ranges and heating the mixture in a non-reducing atmosphere such as air to a temperature between 900‹C and 1100‹C for 1-4 hours. Two heatings can be used. Starting compounds comprise oxides, nitrates, and carbonates of barium, magnesium, zinc or lead. The lead and/or barium may be added as fluoride which also acts as a flux. The silicon is preferably added in the form of silicon di-oxide. Specific examples of preparation are described. The luminescent material can be applied to the inner wall of the glass envelope of a gas and/or vapour discharge tube with a binding agent such as nitro-cellulose, methyl-methacrylate or ammonium alginate in a solvent such as butyl acetate. Specification 669,380 is referred to. Reference has been directed by the Comptroller to Specification 809,069.
Patent GB-1094399-A (GB)
Title: Improvements in or relating to magnetic storage systems
Inventor: PHILLIPS BRIAN JOHN
IPC: G11C11/06
Filed: 1965-07-13
Abstract: 1,094,399. Magnetic memories. GENERAL ELECTRIC CO. Ltd. July 13, 1966 [July 13, 1965], No. 29742/65. Heading G4C. A magnetic storage system e.g. for a 100 subscriber automatic telephone exchange comprises two sets 2, 3 of ten bi-stable magnetic cores 1, each core having a pair of read-in windings and a pair of read-out windings, the magnetic state of one core of each set being changed during read-in so that together the two changed cores represent a two-digit decimal number. To accomplish such a change, a first digit pulse applied via a terminal 5 to a first read-in winding of the corresponding core 1 of the first set 2 produces a field which reinforces that produced by a simultaneous pulse in the other core read-in winding which is connected across terminals 4, the combined field being sufficient to change the magnetic state of the core. The same digit pulse however opposes the field set up in a read-in winding of the corresponding core of set 2 so that no change of its state occurs. The second digit is similarly read-in only the pulse applied across terminals 4 is of opposite polarity resulting in the change of magnetic state of one of the cores of the second set 3 of cores. To read-out the stored number, a pulse is applied across terminals 6 to a read-out winding of each core, causing the two cores of changed magnetic state to reset to their initially a resulting voltage being induced across each second readout winding of these two cores. Each such second read-out winding of set 2 is interconnected via rectifiers 7 and loads 8 with all the second read-out windings of set 3, the induced voltage set up across the particular pair of second read-out windings forward biasing the corresponding rectifier to produce a very lowimpedance path so that the read-out pulse is steered to a particular one of the 100 loads 8 in accordance with the information store in the cores of the system.
Patent GB-328538-A (GB)
Title: Manufacture of cement powders and mortar powders
IPC: C04B28/26
Filed: 1929-10-02
Abstract: 328,538. I. G. Farbenindustrie Akt.- Ges. Oct.. 2, 1928, [Convention date]. Soluble silicate compositions.-A cement mortar powder containing the binding agent in solid form is made by mixing readily soluble hydrated silicates, e.g. water glass powder, with substances which react with alkali, e.g. silicon or sodium silico fluoride. Example, 600 grams of powdered commercial sodium water glass which still contains 17-25 per cent water are mixed with 170 grams sodium silico fluoride. To this mixture is then added 2¢ times its weight of sand and made into a paste with 9-10 per cent water. The product is acid-proof but not waterproof. A small addition of aluminous cement renders it waterproof also. Other fillers including lead glass are mentioned. Specifications 258,616 and 267,369 are referred to.
Patent GB-729722-A (GB)
Title: Improvements in or relating to vehicle wheels
IPC: F16D65/10
Filed: 1953-10-29
Abstract: 729,722. Vehicle wheels; cooling brake drums. BAYERISCHE MOTOREN WERKE AKT.-GES. Oct. 29, 1953 [Nov. 20, 1952], No. 29877/53. Classes 103 (1) and 144 (1). A motor cycle wheel hub 5 has a brake drum housing 1 and a brake drum 6 rigidly and independently connected thereto, the brake drum 6 being received within its housing 1 and in turn rigidly connected therewith. As shown, the hub 5 has axially spaced radial flanges 4, 9 to which are bolted and riveted respectively conical and radial web portions of the brake drum housing and the brake drum. The drum and its housing are riveted together at abutting outer radial peripheral portions of their respective webs to provide a triangular-section loadbearing support. The outer periphery of the drum housing 1 has spoke apertures 11 and may be provided with cooling fins 13 as shown or with a central well portion.
Patent GB-922867-A (GB)
Title: Improvements relating to stabilising devices for use between towing vehicles and trailers
IPC: B60D1/32
Filed: 1959-09-02
Abstract: 922,867. Tractor-trailer hitches. F. G. TAYLOR. Dec. 1, 1960 [Sept. 2, 1959; Oct. 5, 1959; Dec. 9, 1959], Nos. 29879/59, 33618/59 and 41875/59. Class 103(5) An anti-snaking anti-pitching stabiliser for connecting a towing vehicle to a trailer in addition to the normal towing connection, comprises a bracket 1, Fig. 1, mounting a ball coupling 11 and a splined stem 2 slidably supporting a non-rotatable anti-snaking slotted face cam 3, a spring 5 bearing on the cam 3 and adjustably compressed by a nut 6, a fork 7 attached to a face cam 4 fixed to the bracket 1, between which fork the socket engaging the ball 11 is positioned, and an anti-pitching friction disc shock absorber 18 having one arm attached to a bearing 10 and the other arm 19 slidably connected via a spigoted fork 12 pivoted at 21 to a block 20 slidable on a bar 22 attached to the trailer. Alternatively the bore 17 of the arm 19 may slide with respect to the spigot of the fork 12 and be retained by a spring urged sliding latch 16 having a forked end engaging a reduced portion of the spigot. When the car and caravan turn a corner however, the cams 3 and 4 override and engage one another on flat surfaces, so that resistance ceases, to allow freedom for cornering. The pressure of the spring 26, Figs. 2 and 3, clamping the discs of the. shock absorber 18 together may be varied by rotating a lever 23 to ride over the face of a plate cam 24 to thus move axially the bolt 25 connected to the spring 26. In a modification Fig. 6 (not shown) the connecting fork 12 is replaced by a ball engaged by a cam operated sliding plunger in a socket provided in a block sliding on guide rods fixed to the trailer. In another embodiment, Fig. 5 (not shown) the cam 4 is rigid with the bearing 10 and the splined cam 3 is pressed down by a spring 5 and nut 6 positioned above the cams. In a further embodiment, Figs. 7 and 8 (not shown), the arm 19 is extended longitudinally by a releasable bar which slides and pivots in a ball held captive in a socket connected to the trailer, and the cam 3 is pulled down into engagement with a lower cam 4 integral with the bearing 10, by a spring 5 and nut 6 positioned below the bearing.
Patent GB-1451882-A (GB)
Title: Method to control optimum ratio
IPC: C08F10/00
Filed: 1974-07-06
Abstract: 1451882 Automatic control of ratio of components Z S KOROLKOVA A S LIVSHITSIN K N ABUZYAROV M I BREIMAN E M KUKARTSEV A I LUKASHOV I P LIPKA A I LUKYANOV V V ORLYANSKY V V KHARLAMOVA I V GARMONOV A S ESTRIN and M B KOPYLOV 6 July 1974 30057/74 Heading G3R In the preparation of complex organometallic catalysts used for production of synthetic polymers, the ratio of the components of the catalyst is automatically controlled in dependence upon the measured dielectric constant of the catalyst mixture in order to attain an optimum ratio. As explained with reference to a graph Fig. 1 (not shown) the optimum ratio of components occurs when the measured dielectric constant is a minimum. In an automatic control arrangement Fig. 3, a first starting component - a solution of a metal compound having a variable valency e.g. titanium tetra chloride TiCl 4  in toluene is delivered to a reactor vessel 1 via a valve 9 and a second component - a solution of an organometallic compound e.g. triisobutylaluminium in toluene is delivered, deliberately deficient in quantity, via a valve 10 to the reactor vessel, the ratio of the components being pre-set at 0.6 by flow-rate regulators 11, 12. When sufficient quantities have been fed the delivery is stopped and a valve 13 is automatically opened to pass the second component, i.e. the organometallic component, into a loop in which the reactor vessel catalyst mixture is circulated by a pump 17. Pick-ups 14, 15 measure the dielectric constant of the circulating catalyst mixture. Initially the pick-up 15 will sense a lower dielectric constant than 14 due to the injected organometallic component and a differential measuring instrument 16 will measure the differences in detected values. When the optimum ratio of the components is attained the outputs of the pick-ups will be equal, the instrument 16 will read zero and the valve 13 will be automatically closed to stop delivery of the second component.
Patent GB-162999-A (GB)
Title: Improvements in or relating to windmills
IPC: F03D1/04
Filed: 1920-10-25
Abstract: 162,999. Fraser, A. Oct. 25, 1920. Screw motors; blades. - Oppositely rotating wind-wheels 19, 20 are mounted at the narrow end of a conical casing 11. The casing is formed with thick walls and the wind channel may diverge as at 13 after passing the first wheel. The wheel hubs and the toothed gearing are covered by a conical guide 34. The whole turns about a fixed column 21 so as to keep in the wind. The pitch of the blades is varied to maintain a constant speed with varying winds by means of an oil-actuated piston 38, Fig. 3, and gear 48, 49, 51 by which the vanes 19 are turned upon their trunnions 55. Oil is forced into the cylinder 37 by a pump 44 driven by the wind motor, and the position of the piston is determined by the oil pressure which increases with the speed of the pump.
Patent GB-1058201-A (GB)
Title: Heat exchanger
Inventor: KEEN JOHN WILLIAM
IPC: F28F3/08
Filed: 1963-07-30
Abstract: 1,058,201. Plate heat-exchangers. MARSTON EXCELSIOR Ltd. July 7, 1964 [July 30, 1963], No. 30137/63. Heading F4S. In a heat exchanger comprising a stack of spaced-apart plates 1, the plates each have two non-adjacent edge portions formed into steps 4, adjacent plates being oriented so that their respective stepped portions are relatively inclined whereby adjacent plates are spaced by the risers 7 of the steps and the treads 8B are in contact with unstepped edge portions of adjacent plates. In the form shown, lips 5, integral with the steps 4, retain corrugated metal strips 6 which serve to distribute evenly the bolting pressure applied between end-plates (2), Fig. 1 (not shown). Rubber sealing strips 11 are pressed by angled members 12, 14 into recesses cut in the corners of the plates. In an alternative construction (not shown) the plates are glued together, the strips 6 being dispensed with. Blanking plates or partitions may be inserted between adjacent plates to give a modified flow arrangement. The plates may have non-nesting dimples (9), Fig. 2 (not shown).
Patent GB-1138849-A (GB)
Title: Radial adjusting means for a spindle assembly of a metal working machine
IPC: B23Q5/16
Filed: 1966-09-30
Abstract: 1,138,849. Milling. GORTON MACHINE CORP. 30 Sept., 1966 [19 Oct., 1965], No. 30220/68. Divided out of 1,138,848. Headings B3B and B3K. The subject-matter of this Specification is identical with that of the main Specification 1,138,848, but the claims are directed to the workspindle centring and locking mechanisms.
Patent GB-138841-A (GB)
Title: Improvements in or relating to worm and worm wheel mechanism
IPC: F16H1/16
Filed: 1919-12-03
Abstract: 138,841. Newitt, L. Dec. 3, 1919. Toothed wheels. - In worm gearing of the kind having a continuous string of balls circulating in one or more grooves in the worm faces, applicable for gun mountings, hoists, motor-vehicle driving- gear, &c., the ends of each groove are connected by a helical return passage g formed in a bush b fixed to the worm a. Passages connecting the groove d to the passage g are covered in by end plates i, which carry shaped metal pieces h to guide the balls. The opening of the groove d is smaller than the diameter of the balls, or, as shown in Fig. 5, the balls are retained in the groove by a wire f placed in a recess in one or both lips of the groove.
Patent GB-328190-A (GB)
Title: Improvements in the manufacture and production of products of the nature of resins, waxes, balsams, and the like
IPC: C09F1/00
Filed: 1928-10-20
Abstract: 328,190. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Oct. 20, 1928. Esters and ester alcohols; ester condensation and phenol-aldehyde condensation products.- Products of the nature of resins, waxes, balsams, and the like are obtained by treating resinic acids or natural resins or gums containing them, or artificial resins containing free carboxylic acids with alkylene monoxides, for example, ethylene oxide or propylene oxide, at elevated temperatures, such as from 60-100‹ C., and preferably under increased pressure. The products may be acylated, if desired, by treatment with acylating agents such as formic acid, acetic anhydride, or phthalic anyhydride. The treatment with alkylene oxides may be carried out in presence of acid condensing agents such as boric acid or those, for example, zinc chloride, which also possesses dehydrating properties. Resinic acids which may be treated are those contained in, or separated from, colophony, copals, shellac, or other natural resins. By the treatment of abietic acid with alkylena oxides, hydroxyalkyl esters of abietic acid are obtained, which are themselves as well as their esters, adapted for use as softening agents for compositions containing cellulose esters or ethers or for resinous substances capable of being hardened. Ester resins such as those obtained by treating colophony with glycerol, or those of the glycerol-phthalic anhydride type may also be subjected to the action of alkylene oxides with the production of resins having a low acid value. Other artificial resins which may be so treated are those obtained by the condensation of hydroxybenzoic acids with formaldehyde. In all cases the products may be subjected to a hardening treatment, for example, by heating in vacuo. Examples are given. Wax-like products obtained by treating adipic acid with polyhydric alcohols or derivatives thereof are referred to. According to the Provisional Specification, instead of alkylene monoxides derivatives thereof such as the corresponding halogenhydrins may be used, and carboxylic acids such as phthalic, succinic, citric, tartaric, sebacic, palmitic, and stearic aids, in addition to resinic acids and acid-reacting natural or artificial resine or salts thereof, may be treated with these reagents. Esters of hydroxyalkyl esters of abietic acid, and their use as softening agents for cellulose esters and ethers and resinous substances capable of being hardened, are also mentioned. Specifications 265,233, 292,059, 302,041 and 312,523 are referred to.
Patent GB-408544-A (GB)
Title: Improvements in machines for carding, cleaning, opening and like treatment of textile fibres
IPC: D01G9/00
Filed: 1933-11-02
Abstract: 408,544. Opening, cleaning, or carding fibres. TECHNIK & INVESTMENT AKT.-GES., Vaduz, Liechtenstein. Nov. 2, 1933, Nos. 30492 and 30493. Convention dates, Nov. 4, 1932 and March 2, 1933. [Classes 120 (i) and 120 (iii).] A machine for opening cleaning or carding fibres comprises two coacting cylinders 31, 33, Fig. 13, the cylinder 31 having approximately tangential teeth 8, Figs. 3 and 4, with outwardly facing channels extending from root to tip and the cylinder 33 having teeth 26, Figs. 10 and 11, arranged to pass through the channels of the teeth 8. The teeth 8 comprise wall or side portions 9, 10 forming a channel the part 10 tapering to a point 11 and the top edge being formed with a reinforcing flange 12. In a modification, two points 11, 17, Fig. 6, of equal or different lengths are provided. The teeth are joined by lugs 13, 14 to arcuate feet 15, 16 which are secured by flanged brackets 21, 22, Fig. 7, in circumferential grooves formed in the cylinder. The outwardly directed flanges 25 of the brackets 22 may be constructed so as to prevent excessive bending of the tooth tips. The material is fed to the cylinders 31, 33 by feed apparatus 28, 29, 30, and is delivered by a fan 34 through a duct 35. The teeth 26 on the cylinder 33 may alternatively be formed as saw teeth, while in a modification having a third cylinder the teeth on the second and/or third cylinder are bent laterally.
Patent GB-665909-A (GB)
Title: Improvements in or relating to boring grabs for boring wells and the like
IPC: E21B11/04
Filed: 1949-06-17
Abstract: 665,909. Grab-buckets. JUPP, A. W., and STOW & CO., Ltd., G. Sept. 27, 1949. [June 17,1949] No. 30522/50. Divided out of 665,775. Class 78 (iv). The jaws of a single-rope gral with an elongated body are closed through a connectior comprising a hydraulic ran having a secondary piston or which acts fluid displaced by a smaller primary piston couplec to the rope, and are opened by spring means. As shown ir Fig. 1, the jaws 2 of a grab are closed by upward movement of a member 15 carried by a tube 26 which is connected by rods 25 and a tube 21a to a piston 21 working in a cylinder 23 con taining liquid placed under pressure by a piston 19 working in a smaller cylinder 20. The piston 19 is connected by a rod 18 passing through the pistor 21, to the hoisting rope 3, a spring 22 biassing the piston 21 downwardly. A stop 27 on the rod 18 engages the piston 21 tc provide a direct mechanical connection should the liquid in the cylinder 20 escape. The grab is controlled by means which co-operate with a fixed crown 5. In the positior shown in Fig. 1 the grab is supported with its jaws oper by pawls 28 pivoted at 32 and biassed to engage a shelf 34 inside the crown 5 by a pair of springs 36. If the rope 3 is now raised a button 37 thereon engages rollers on arms 29 pivoted between their ends and turns them against the bias of a pair of springs 41. The arms 29 then engage and press down the horizontally bent lower ends of a pair of links 30 pivoted at 30a to the pawls 28 and pressed into a position in which such engagement is possible by rollers 39 engaging a portion 40 of the crown 5 and acting against the bias of a pair of springs 38. The links 30 in moving downwardly retract the pawls 28 so that the grab falls until it is supported by engagement of the now horizontal limbs 33 of the pawls 28 with the button 37. The grab may now be lowered with the jaws open until it rests on the ground when the button 37 is lowered to release the pawls 28, links 30 and arms 29. The links 30 move outwardly to a position in which they cannot be engaged by the arms 29 so that the button. 37 may now be raised through the grab head to close the grab and raise it, the arms 29 being returned by the springs 41 after deflection by the button. When the grab has been hoisted again to the crown 5 the pawls 28 re-engage the shelf 34 and the button 37 may be lowered to bring the parts back to the position shown in Fig. 1.
Patent GB-280594-A (GB)
Title: Improvements in or relating to shock-absorbers
IPC: B60G11/14
Filed: 1927-11-14
Abstract: 280,594. Ribis, G. P. G. Nov. 13, 1926, [Convention date]. Addition to 261,744, Springs, arrangement of.-In the apparatus described in the parent Specification in which the action of the ordinary supporting spring is modified by a helical spring attachment, the two helical springs are replaced by a single spring h which is compressed when resisting either compression or extension of the apparatus When the apparatus is under tension, the spring is compressed between the head e<1> of the slidable, bolt e and a loose or slidable collar c'. which then abuts against the socket c in the end of the outer tube a When the apparatus is compressed, the upper fitting b engages the head of the bolt e and forces it downwards together with the spring and the collar c' until the collar engages a shoulder d<11> on the lower fitting d', the socket c being large enough to pass over the fitting d<1>.
Patent GB-918545-A (GB)
Title: Improvements in or relating to hydraulic transmission systems
IPC: F01L25/04
Filed: 1960-09-05
Abstract: 918,545. Earth excavating apparatus. LINDE'S EISMASCHINEN A.G., GES. FUR. Sept. 5, 1960 [Sept. 4, 1959], No. 30540/60. Class 68 (1). [Also in Groups I, XXIX and XXXI] An hydraulic transmission, such as for an earth scraper or a mowing attachment on motor vehicles comprises an hydraulic source or a pump, a rotary hydraulic motor, and a changeover element between the source or pump and motor which, when a desired pressure is reached, changes over the direction of fluid flow and therefore the direction of movement of the motor, thereby obviating abrupt peak loads on the transmission. The change-over element consists of a piston 10 slidable in a bore 2 in a casing connected by ducts 3, 4 to the outlet, and duct 5 to the inlet of the source or pump, and by ducts 6, 7 to the motor driving the scraper or blades of the mower. The piston is provided with pins 13, 14 co-operating with spring-pressed balls 17, 18. In the position shown, hydraulic pressure from the duct 3 passes through a chamber 19 to the duct 6 and is returned by duct 7, chamber 22 and duct 5. The chambers 19, 22 are connected by passages 20, 23 to end chambers 21, 24 and the piston is urged to the position shown by the spring- pressed balls 18. In the event of the load on the scraper or blades increasing, the resulting increase in pressure in chamber 19 and consequently chamber 21 acts against the pressure in chamber 24 and the spring-pressed balls 18 to move the piston to the right and connect the pressure in duct 4 to the duct 7 to reverse the direction of movement of the motor, the spring-pressed balls 17 assisting in the movement of the spring-pressed balls 17 assisting in the movement of the piston. The arrangement enables the earth scraper or mower to be repeated applied to a load of high resistance.
Patent GB-961168-A (GB)
Title: Improvements in or relating to green tea leaf sifters and like machines
IPC: B07B1/00
Filed: 1960-09-05
Abstract: 961,168. Sifting apparatus. H. C. ANDREWS. Sept. 5, 1960, No. 30549/60. Heading B2H. A sifting barrel which is simultaneously rotated about its axis and given a rocking motion consists of a number of separate sifting panels 5 mounted in a cage structure formed by end rings 1, 2 interconnected by parallel columns 3. Gaps 13, Fig. 3, are provided between the edges of adjacent panels, and the leading edge of each panel overlaps the trailing edge of the adjacent panel. The barrel is supported in an inclined position, and the end rings are each supported on three rollers. The central roller is either eccentric in shape or is so positioned relative to the outer rollers that when the barrel is rotated it is caused to rock continuously from side to side. A lesser rocking effect can be obtained by eliminating one of the centre rollers. Each panel is mounted under tension between two transverse spindles 15, 16 connected to the end rings. The panel supports include wires or hooks 17 and wires 18, the latter passing through holes in the members 16 and being tensioned by springs 19. The barrel is rotated by a shaft 11 connected to the end ring 2 through a flexible joint; material is fed to the barrel through the ring 1 and flows towards the opposite ring. Specifications 650,323 and 961,169 are referred to.