baber/WOPTO huggingface dataset:
Patent GB-695335-A (GB)
Title: Improvements relating to a method of preparing luminescent screens
IPC: H01J9/22
Filed: 1951-08-10
Abstract: 695,335. Luminescent screens. EDISON SWAN ELECTRIC CO., Ltd. Aug. 10, 1951 [Aug. 31, 1950], No. 18879/51. Class 39(i) A method of forming a luminescent screen consists in settling a phosphor on to a supporting surface, such as the face of a cathode ray tube, from a suspension in an acidified solution of an alkali silicate having a pH in the range 6 to 7.5. The solution may be potassium or sodium silicate acidified with phosphoric, sulphuric, acetic, oxalic or hydrochloric acid or an acid salt such as sodium hydrogen sulphate or sodium dihydrogen phosphate. Potassium silicate and phosphoric acid are preferred. The settling process comprises placing in the tube a cushion consisting of water, a water solution of the acid or acidifying agent or the silicate, or the silica so] produced by mixing them. The phosphor is suspended in water which may also contain some or all of the acid or acidifying agent or the silicate or the silica sol. The phosphor suspension is added to the tube prior to, during, or after formation of the silica sol bath in the cushioning layer. After a time depending on the silicate concentration and temperature, and which may be as short as 12 mins., the tube is inverted so that the liquid pours off.
Patent GB-1034923-A (GB)
Title: Improvements in or relating to communication systems
Inventor: SMITH GILBERT LEVI
IPC: H04Q11/04
Filed: 1963-05-13
Abstract: 1,034,923. Automatic exchange systems. POSTMASTER GENERAL. Aug. 13, 1964 [May 13, 1963], No. 18919/63. Heading H4K. Calls incoming to a time division multiplex exchange are routed to the operator over a special line circuit provided for the wanted subscriber if that subscriber is given service as a changed number or as a subscriber to whom incoming calls are barred or given interception. As shown, a special service line unit 1 provides a path from subscriber L1 to a normal service line unit 2 by way of a line relay LS and contact K1. A relay X in the special line unit is strapped to ground and connects a special service marking lead ML2 to the special service marking highway SM and disconnects the normal marking lead ML1 from the normal marking highway NM. A call to the subscriber activates a marker M to identify the subscriber to the special service equipment 3 over highway SM so that the call can be routed from a special service highway, over the special service equipment and by way of access and control equipment to an operator. Each special service line unit has a time slot in a series allocated to the particular service it provides. As shown, the unit 1 has slot Ps1 out of the series Ps1 to Psx allocated for service interception. A series Pt1 to Ptx serves units for lines with incoming calls barred and a series Pu1 to Pux for another service. The time slot in which pulse Pn governs the modern to the normal service highway is not related with the time slots of pulses Pa, Pt and Pu. A circulating delay line in the access and control equipment stores the pulses in time slots of special line units requiring attention. One at a time these pulses are transferred to a second recirculating store to govern the connection of the calling line to the operator. If the opeator decides to forward a call she follows trunk offering procedure to operate relay XA in the special line unit 1 so as to release relay X and restore the subscriber to the normal service highways over which the operator can set up a connection. If the called subscriber is busy the operator breaks in and the subscriber can clear to allow the operator to transfer the connection. Figs. 2 and 3 show the logical circuitry of the service unit 1, special equipment 3, and control equipment 4, in some detail.
Patent GB-1382229-A (GB)
Title: Dust removal apparatus
IPC: C10B33/00
Filed: 1973-04-19
Abstract: 1382229 Confining and removing dust generated in industrial processes A HOFFMANN and M HOFFMANN [trading as NIEMANN & HOFFMANN] 19 April 1973 [25 April 1972] 18928/73 Heading F4X A structure for enclosing apparatus, such as coking ovens, likely to produce dust and/or fumes comprises a plurality of vertical side walls 10, an outer ceiling 11, and an intermediate ceiling 12 made up of a plurality of individual side-by-side hoods 13 positioned below the outer ceiling 11. Each hood is provided with an arrangement of slots 18 and 19, and the hoods are spaced from the side walls 10 and from depending vertical skirts 14 to define narrow gaps 15 and 16. Suction is applied to the structure through suction funnels 20 in the outer ceiling 11, the funnels being connected to exhaust means 22 by way of pipes 21. A wall skirt 23 extends upwardly into the space between the ceilings 11 and 12, the skirt being spaced from the wall 10 above the ovens to define a gap 24. Dust etc. is removed from the interior of the structure by way of gaps 15, 16, 23 and the slots 18 and 19 into the space between the ceilings 11 and 12 from where it is exhausted through the funnels 20.
Patent GB-220625-A (GB)
Title: Improvements in draught excluders
IPC: E06B7/20
Filed: 1924-08-11
Abstract: 220,625. Geake, W. H. G. Aug. 17, 1923, [Convention date]. Draught excluders for doors, casements, &c. of the sliding-bar type. A wood or like excluder 8 has recesses 9 in which are fixed two parallel pins 10 sloping at an angle of about 7‹. The pins ,are engaged by the loops 17 of two springs housed in the recesses and secured to the door by screws 13. When the excluder engages the jam &c. the loops slide downwardly on the pins. The device may be actuated by a link &c. connected to a fixed point on the floor. The strip may have a rubber or like edging 15.
Patent GB-748687-A (GB)
Title: A process for the manufacture of silica-alumina catalyst
IPC: B01J21/12
Filed: 1954-06-29
Abstract: A process for producing a silica-alumina hydrocarbon cracking catalyst comprising the steps of forming a silica hydrogel in aqueous slurry, mixing therewith aluminium sulphate solution, adding ammonia to precipitate alumina, spray-drying the slurry to form microspheroidal particles, washing the particles to remove soluble salts, and redrying, is characterized by treating the spray-dried particles, before washing, in an aqueous medium at a pH between 4.5 and 5.5.  The particles from the spray-drying step may be collected in an aqueous slurry, the pH of which is adjusted by the addition of aqueous ammonia or an aqueous solution of an amine, e.g. methyl-, dimethyl-, or trimethylamine, ethyl- or diethylamine, isopropyl- or diisopropylamine, n-butylamine, n-hexylamine, ethylene diamine, morpholine, pyridine, monoethanolamine, diethylbenzylamine, or phenylethanolamine.  The adjustment of pH enables sulphate to be washed out more easily and reduces the loss of alumina during washing.  In examples, sodium silicate solution and dilute sulphuric acid are mixed and after gelation the product is aged at pH 10 and pH 6.9.  Aluminium sulphate solution is added, followed by ammonia, and spray-dried particles are collected in a slurry the pH of which is raised from 4 to 4.9 by adding ammonia.  The product is washed with ammonium sulphate solution and water. Figures are given which show that the temperature of spray-drying and the particle size affect the amount of ammonia or amine required for pH adjustment.
Patent GB-256262-A (GB)
Title: Improvements in automatic wood screw cutting machines
IPC: B23G1/06
Filed: 1926-07-30
Abstract: 256,262. Kumpmann, K., and Kumpmann, W., (trading as Kumpmann Geb.), and Rahmede, E., and Rahmede, A., (trading as Brauckmann & Rahmede, W.). July 31, 1925, [Convention date]. Turning wood -screws.-In apparatus for turning wood-screws, the headed blanks 4 are fed to a chuck 3 and the cylindrical part of the screw is cut by means of a number of tools 6<1> mounted in a common holder 6 while the point is formed by an independently adjustable cutter 7. The holder 6 is fixed to a shaft 5 which is reciprocated by a cam 9 and lever 10, and the travel of the cutters is such that the cuts overlap so as to give a smooth continuous thread. The pointing cutter 7<1> is mounted in a carrier 7 which also reciprocates with the shaft 5 but is rocked on this shaft to shape the point by means of an arm 11 engaging a templet 14 carried in a box 13. The shaft 5 is prevented from rotating during the cut by the engagement of an arm 15 with a flat bar 17 in the box 13. In order to apply cutting feed to the tools at each traverse the box 13 is carried on an arm 19 controlled by a cam 20 having a number of stepped concentric portions. A depressed portion 23 of the cam causes the withdrawal of the tools during the positioning of a fresh blank. The cutters are also withdrawn from the work during their idle travel by means of a cam 26 coacting with an arm 31 connected to a profile bar 32. This bar supports the member 17 and the templet 14 which, when the bar is moved by its cam, drop on to the lower portions 32<1> and thus withdraw the tools from the work.
Patent GB-863311-A (GB)
Title: Method and composition for fixing transfer image
IPC: G03F7/06
Filed: 1957-06-17
Abstract: 863,311. Photolithography. POLYCHROME CORPORATION. June 17, 1957 [July 13, 1956], No. 19056/57. Addition to 824,174. Class 98(2) The feature of the parent Specification wherein an image transferred to a lithographic surface is treated with an aqueous solution including a trivalent metallic salt, an organic acid and ethylene glycol to harden the image and make it ink-accepting is modified by replacement of the ethylene glycol with either a polyhydric alcohol having more than two but not more than six carbon atoms or with a monohydric alcohol or a sugar. A number of these substances and three specific mixings are quoted.
Patent GB-191623-A (GB)
Abstract: 191,623. Williamson, G. Jan. 24, 1922. Turning. - A rotary tool-head for use on a boring or other bar for use in facing flanges &c. comprises arms d, d' carrying tools at their ends and rocked for feed by worm - gearing f ratchet actuated from a sliding pawl carrier and tappet j. In addition an axially movable slide, with holes o for receiving a tool, may be provided for facing the periphery of a flange. The slide is fed by a screw and star wheel. In a modification the tool head is in two parts formed with vices for clamping on the bar without sliding on from the end. In this form the arms are mounted on opposite ends of a common shaft, a tool being provided at each side of the head.
Patent GB-426107-A (GB)
Title: Means for accelerating the generating of steam in furnace tube boilers
IPC: F22B7/20
Filed: 1934-06-29
Abstract: 426,107. Partitions in boiler water. BAILEY, G. B., St. Quentin, Stow Park Circle, Newport, Monmouthshire. June 29, 1934, No. 19223. [Class 123 (ii)] To accelerate steam generation a box-like compartment extends substantially the length of the furnace tube f to which its side and end walls are secured, and is of tapering form with a vertical steam pipe d at the deeper end of the box located above the combustion end of the furnace tube and a vertical water standpipe c at the other end. Pipes c, d open respectively below and above the boiler water level. Slots in the side or lower end may provide additional water inlets. A detachable cover b carrying the pipes c, d, is bolted to the flanged upper edges of the box.
Patent GB-834389-A (GB)
Title: Improvements in electric tumbler switches
Inventor: ZANICHKOWSKY MARTIN
IPC: H01H23/16
Filed: 1958-06-17
Abstract: 834,389. Tumbler switches; retractive switches. ALLIED CONTROL CO. Inc. June 17, 1958, No. 19335/58. Class 38 (5). A tumbler switch comprises an insulating base 11 and a cover 12 with tubular extension 19 secured to the base by clips 18. A U-shaped metal saddle 25 secured in the base 11 by a contact 14<SP>1</SP>, has a groove 28 at the top of each arm 27, these grooves engaging pivot arms 33 of a cruciform metal rocker 30. An asymmetrical boss 34 of the rocker 30 has a recess 35 engaged by an insulating head 44 of a metal rod 43 slidable in a handle 38, the pressure between members 35, 44 being provided by a spring 45 and adjusted by a threaded cap 41. A " floating " pin 46 prevents excessive compression of the spring 45 by limiting the possible upward travel of the rod 43. Rocking movement of the handle 38 about surface 23 causes the head 44 to tilt the rocker 30 to engage either contact 151 or 16<SP>1</SP> depending on the direction of movement. Configuration A of the boss 34 is designed to produce a self-resetting action, so that the handle 38 must be held in its actuated position, whereas portion B of the boss allows the head 44 to vacate the recess 35 and hold the handle 38 in its actuated position, a shoulder 24 acting as a stop in both cases. The boss may alternatively have both configurations of the A or B type.
Patent GB-806776-A (GB)
Title: Improvements in or relating to the desulphurization and desiliconization of pig iron
IPC: C21C1/00
Filed: 1957-06-19
Abstract: A process for the desulphurization and desiliconization of pig iron comprises blowing finely divided wire entrained in an inert gas through the molten pig iron and then without removing the slag, blowing an oxidizing gas having no gaseous reducing products through the metal.  The inert gas may be nitrogen, argon or hydrogen and the oxidizing gas oxygen, carbon monoxide or carbon dioxide.  A solid coolant, e.g. carbon dust, finely divided lime, iron or manganese oxides or ores, may be added with the oxygen when it is used as the oxidizing gas.
Patent GB-1354964-A (GB)
Title: Speedometer and or milometer converters
IPC: G01P1/04
Filed: 1971-06-08
Abstract: 1354964 Toothed gearing APPOTGIETER 8 June 1971 [8 June 1970] 19530/71 Heading F2Q [Also in Division G1] In a step-up gear-box 10 through which a speedometer and/or milometer may be driven, the speed ratio between input and output is chosen to be substantially equal to the ratio between kilometer and mile distances, thus allowing a meter calibrated in miles to be read in kilometers. The gear-wheels 12, 14 in the box 10, Fig. 1, have 29 and 18 teeth respectively. Square holes 16, 18 receive drive cables held by locking means 20, 22. In an alternative arrangement, Fig. 2, gearing 32, 34 with an idler wheel 36 may be used.
Patent GB-1170972-A (GB)
Title: Grooved Holder for Spinning Ring.
Inventor: WAYSON ANDREW J
IPC: D01H7/62
Filed: 1967-04-28
Abstract: 1,170,972. Spinning rings. MERRIMAN, Inc. 28 April, 1967, No. 19617/67. Heading DID. A porous spinning ring 2 having a groove 6, 7, 8 on its outer surface is mounted in a split ring 9 (see also Fig. 1 not shown) which fits within the groove and has on its inner vertical surface a number of circumferentially extending teeth 34 of small size, the teeth cooperating with the surface 6 of the ring to form a series of circumferential passages about which oil may flow, there being means to deliver oil to the passages. The oil may be supplied from a pressure source feeding a number of rings or by gravity from a container associated with the ring. The oil passes through a duct 22 in holder 9 to a slot cut at right angles to the passages. The teeth may be formed by a continuous thread. The vertical engaging surfaces of ring and holder may be convex or concave.
Patent GB-771418-A (GB)
Title: Improvements in polyalkylphenylpentenyl halides
IPC: C07C17/275
Filed: 1955-07-07
Abstract: The invention comprises polyalkylphenyl pentenyl halides of the formula <FORM:0771418/IV(b)/1> in which R1 is H or methyl, R2 is H or methyl, R3 is alkyl of 1-18 carbon atoms and X is Cl or Br, and a method for preparing them by the Friedel-Craft condensation of polyalkylphenylmethyl halides and butadiene, with catalyst, and with or without solvent.  The product is probably a mixture of isomers in which the pentenyl halide group may be -CH2CH2CH = CH.CH2X or <FORM:0771418/IV(b)/2> In examples trimethylphenylpentenyl chloride and bromide, dimethylphenylpentenyl chloride, methyl octadecylphenylpentenyl chloride, chloropentenyldodecyl toluene, chloropentenyl durene, dodecyltrimethylphenylpentenyl bromide, and others are prepared by the reaction between butadiene and the corresponding polyalkylbenzyl halides, in presence of FriedelCraft catalysts. Other groups which R3 may represent are listed.
Patent GB-1382945-A (GB)
Title: Floating mixer
IPC: B01F3/04
Filed: 1973-04-25
Abstract: 1382945 Floating mixer RICHARDS OF ROCKFORD INC 25 April 1973 [8 June 1972] 19663/73 Heading B1C A liquid mixer has a float 11, a motor 44 a drive shaft 41, an impeller 40 and a flow tube 20 mounted onto the float by legs 21. The impeller can be driven in either direction to promote upward or downward flow. If the flow is upward the bottom face of the float acts as a baffle to distribute the liquid radially. The float has a central chamber 47 that is shut off at its lower end by a plate 50. Part of the plate is flared downwardly into a bell. Drive shaft 41 passes through an opening in the bell with a small clearance for example 0.005 inches. The chamber is also connected by conduits 60 with the liquid. Thus a level of liquid can be maintained in the chamber whichever direction the impeller is rotated to act as a seal to prevent liquid reaching the motor.
Patent GB-614038-A (GB)
Title: Improvements in the electro deposition of metals
IPC: C25D11/38
Filed: 1946-07-02
Abstract: 614,038. Electrodeposition of metals. UDYLITE CORPORATION. July 2, 1946, No. 19681. Convention date, July 9, 1945. [Class 41] A process of electrodepositing nickel, cobalt, iron, zinc, cadmium, copper or antimony includes electrolysing an aqueous acid solution of a slat of the metal to be deposited and a minor proportion of an addition agent consisting of a soluble sulphate of a water-soluble aliphatic polyhydric alcohol, the hydrogen of at least an hydroxy group of which is replaced by an alkyl radical containing from eight to eighteen carbon atoms, the sulphate group being linked directly to an hydroxy group of the aliphatic polyhydric alcohol. The preferred sulphates are polyethylene glycol alkyl ether sulphates represented by the formula where R is an alkyl radical containing from eight to eighteen carbon atoms, M is a cation such as hydrogen, an alkali metal or a metal corresponding to that of the metal being deposited, and n is a whole number preferably 2, 3 or 4. The addition agents are used in concentrations of from about .05 to .5 grams per litre of electrolyte solution. The solution may also contain an aryl sulphonic acid brightener or a brightener of the form of a soluble compound containing the group -SO2.N=. Examples are given of the composition of nickel, cobalt, copper, iron, zinc, cadmium and antimony baths, using as addition agent the sodium salt of mono-lauryl ether of ethylene glycol mono-sulphate. Specification 525,847 is referred to.
Patent GB-1146305-A (GB)
Title: Improving the bond strength of elastic plastics to tyre cord filaments
IPC: C08L23/16
Filed: 1966-05-06
Abstract: 1,146,305. Treating textiles. CHEMISCHE WERKE HULS, A.G. 6 May, 1966 [7 May, 1965], No. 20030/66. Heading D1P. The bond strength of cord filaments, e.g. of nylon or viscose rayon, to an unsaturated elastomeric copolymer of ethylene with one or more α-olefines and one or more polyenes or to a rubber mixture containing such a copolymer is improved by impregnating the cord filaments with a mixture containing (a) an aqueous dispersion of a copolymer of ethylene or propylene, one or more α-olefines and one or more polyenes whose Mooney plasticity ML-4=40 to 150, (b) an aqueous dispersion of a homopolymer or vinylpyridine or substituted vinyl pyridine and (c) an aqueous solution of a resorcinol formaldehyde resin, the weight ratio of copolymer to polyvinylpyridine being 99.9:0.1 to 60:40, drying them, contacting them with the copolymer of rubber mixture and vulcanising. Monomers used to prepare the copolymers include α- butylene, α-pentene, hexadiene-1,5, hexadiene- 1,4, dicyclopentadiene, cyclooctadiene, methyl cyclooctadiene, 1,4,9-decatriene and 1,2,4- trivinylcyclohexane. The mixtures used for the treatment may be produced by mixing solutions of the copolymer and polyvinyl pyridine in benzene, dispersing the resulting solution in water containing an emulsifier, e.g. an alkylarylsulphonate, alkylsulphoriate, alkyl sulphate or condensation product of a phenol or alcohol with ethylene oxide, distilling off the benzene, optionally heating at 50‹-100‹C for several hours and concentrating the mixture to the desired solids content, or by preparing dispersions of the copolymer and polyvinylpyridine separately and then mixing them and optionally heating for several hours at 50‹-100‹C. The solution of the resorcinolformaldehyde resin is added to these mixtures. The rubber mixtures may also contain fillers, e.g. carbon black, plasticisers, e.g. mineral oils, metal oxides, e.g. zinc oxide, organic acids, e.g. stearic acid, vulcanising agents, e.g. sulphur and vulcanisation accelerators, e.g. tetramethyl thiuram monosulphide.
Patent GB-1159640-A (GB)
Title: Improvements relating to Screws
Inventor: BREWSTER SIDNEY ARTHUR
IPC: F16B23/00
Filed: 1968-04-27
Abstract: 1,159,640. Covers for screws. BRITISH SCREW CO. Ltd. 27 April, 1968, No. 20080/68. Addition to 953,009. Heading F2H. A screw has a head 11, a flange 12, a cover 15 of synthetic plastics material moulded about the head and a skirt 23, the skirt being adapted to be pressed by the flange against the surface surrounding a hole in which the screw is received to provide a watertight seal between the flange and the surface. The cover is formed with projections 21 separated by troughs 22 for engagement by a tool. The skirt 23 is made of rubber or synthetic plastics material and may be formed integrally with the cover. The surface 16 of the head is frusto-conical to prevent the cover from being forced off the head by the skirt when the screw is tightened. V-shaped grooves 13 in the head assist in keying the cover to the head and the shank 10 is formed with a self tapping thread.
Patent GB-266216-A (GB)
Title: Improvements in and connected with tanks for wheeled vehicles
IPC: B60P3/22
Filed: 1926-08-14
Abstract: 266,216. Hugh, P. G. Aug. 14, 1926. Tank wagons. - Tanks particularly of the kind utilized with sixwheeled vehicles including a tractor unit, are connected to the wheels without a chassis frame and comprise an outer shell accommodating concentrically one or more vessels for the liquid, with means for locating the vessels within the shell. The outer shell may comprise several sections a, b, c bolted together by means of U-shaped bands d secured to the respective sections, annular rings e being interposed. Each section contains an inner cylindrical vessel f fitting the section of the shell loosely and subsequently expanded by internal pressure to fit tightly, the intermediate space may be filled with insulating material such as wood, asbestos, &c. Flexible steel bands envelope the cylindrical vessels f and pass out through the shell and are secured thereto by nuts and bolts. A bracket l is secured to a flange d and a band k to support the spring of the rear wheels, while horizontal members o to support a turntable p for the intermediate wheels are secured to a band n and a flange d. The manholes are secured to the inner vessels.
Patent GB-933603-A (GB)
Title: Improvements in auto-reclosing electric circuit-breaker
Inventor: TRENCHAM PETER ROLAND HENRY
IPC: H01H75/06
Filed: 1958-06-24
Abstract: 933,603. Automatic - reclosing circuitbreakers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 27, 1959 [June 24, 1958], No. 20145/58. Drawings to Specification. Class 38 (5). In a circuit-breaker having mechanism for automatically reclosing the breaker after an opening operation and drive means for resetting the mechanism in readiness for a subsequent closing operation, the time necessary to re-set the mechanism is longer than the time for which the breaker remains closed on to a fault, so that the breaker, if closed on to a fault, reopens but will not reclose. The arrangement described and shown is that of Specification 933,603, the re-opening of the contacts B on the tripping of the circuit-breaker when reclosed on to a fault, de-energizing the drive motor before it has turned the mechanism sufficiently to recharge the reclosing spring.