baber/WOPTO huggingface dataset:
Patent GB-1137783-A (GB)
Title: The combination of a stop motion and yarn slub catchers for knitting machines
IPC: D04B35/10
Filed: 1967-04-20
Abstract: 1,137,783. Knitting-machines. SINGER CO. 20 April, 1967 [25 April, 1966], No. 18126/67. Heading D1C. A slub catcher 28 in combination with a stop motion 22 comprises a narrow slot 63 having a wide lower opening 64. Yarn passes through the slot and over spring biased arms 23 and supports a freely pivoted arm 42. If the yarn is tensioned excessively, by e.g. a slub caught in the catcher, the arms 23 are pulled down and the yarn slides off them. The arm 42 falls to make a contact and stop the machine. The machine is also stopped by arm 42 if the yarn slackens.
Patent GB-968457-A (GB)
Title: Improvements in ceramic stains
IPC: C09C1/00
Filed: 1962-05-11
Abstract: A ceramic stain to produce a grey colour in a ceramic glaze is produced by calcining at 650-1150 DEG  C. a mixture of zirconia, silica (30-80%, and preferably the stoichiometric amount, of the weight of the zirconia), an alkali metal halide acting as a flux (1-15% of the zirconia) and a cobalt halide or cobalt sulphate (0.50-80% of the zirconia) and leaching the product with hydrochloric acid.
Patent GB-785209-A (GB)
Title: Manufacture of 1:1-difluoro-1-chlorethane
IPC: C07C17/10
Filed: 1956-06-13
Abstract: The invention comprises a process for the manufacture of 1 : 1-difluoro-1-chloro-ethane by the action of chlorine on 1 : 1-difluoroethane in liquid phase with exposure to light.  The starting-material is maintained in the liquid phase either by cooling, by increased pressure or by use of an inert solvent.  In examples, the chlorination is carried out with an irradiation lamp and cooling with brine or dry ice/butanol, and also continuously using 1 : 1-difluoro-1-chlorethane as the solvent, and in carbon tetrachloride.
Patent GB-862601-A (GB)
Title: Vanadium catalysts
IPC: B01J23/22
Filed: 1959-05-29
Abstract: The ethanolamine salts of metavanadic and molybdic acids are prepared by dissolving the corresponding ammonium salts in ethanolamine; water may be present.ALSO:A catalyst is prepared by impregnating a porous carrier with an ammonium metavanadate solution, ethanolamine being used in preparing the solution.  Ammonium molybdate may be used in addition to the metavanadate and it is stated that, on mixing the ethanolamine with the salts the ammonia is replaced therein by the organic amine.  Carriers mentioned are silica gel, alumina gel, granulated aluminium, pumice stone, kieselguhr, asbestos and chamotte.  In an example, an aluminasilica gel (94% Al2O3, 6% SiO2) is precipitated from aqueous sodium-aluminium silicate with CO2 and, after washing, drying and forming, broken up into 4-5 mm. grains and activated at 550-650 DEG C.; the carrier is impregnated with hot aqueous 50% monoethanol-amine saturated with ammonium metavanadate and then dried and subjected to oxidation at 400-450 DEG C. a catalyst containing 40% V2O5 thus being obtained.
Patent GB-1024395-A (GB)
Title: A process for the preparation of enol esters of acids of pentavalent phosphorus
IPC: C07F9/24
Filed: 1964-05-04
Abstract: Enol esters of acids of pentavalent phosphorus are obtained by reacting a chloride or bromide of an organic acid of pentavalent phosphorus, preferably being one having the formula <FORM:1024395/C2/1> wherein each of the groups V and V1 represents an organic group, Z represents oxygen or sulphur, and hal represents a chlorine or bromine atom, with an alpha-halogen-substituted ketone of the formula <FORM:1024395/C2/2> wherein R1 represents an aromatic or heterocyclic group, Y represents a halogen atom with an atomic weight of not more than 80, and W represents a hydrogen atom, a halogen atom with an atomic weight of not more than 80 or a functional organic group; in the presence of a strong base.  The organic group represented by V and V1 is suitably a hydrocarbyl, hydrocarbyloxy, hydrocarbylamino or dihydrocarbylamino group.  The hydrocarbyl moiety present in the groups V and V1 preferably contain up to 10 carbon atoms and may be aliphatic, cycloaliphatic or aromatic in character. The aliphatic and cycloaliphatic groups may be saturated or olefinically unsaturated.  The functional organic group represented by W is preferably a group having the formula <FORM:1024395/C2/3> wherein R11 represents an alkyloxy group, an aryloxy group, an aralkyloxy group or a group <FORM:1024395/C2/4> or <FORM:1024395/C2/5> wherein R111 represents an alkyl group of 1-carbon atoms. The functional organic group may also be an alkoxyalkyleneoxycarbonyl group, an acyloxyalkyleneoxycarbonyl group, or an ether group R0O- wherein R0 represents a hydrocarbyl group. The aromatic or heterocyclic group represented by R1 preferably contains up to 18 carbon atoms.  The aromatic group is preferably substituted with one or more, preferably 1-3, substituents selected from the group consisting of halogen atoms and cyano, hydroxy, alkoxy, alkylthio, nitro and amino groups.  Preferred heterocyclic groups are those containing from 5 to 6 atoms in a ring, one of which is O, S or N, the remainder being C and being aromatic in character. Also included are those in which the hetero ring is fused with a carbocyclic ring.  Preferred strong bases are alkali metal alkoxides, alkali metal hydrides, alkali metal hydroxides or a trialkylamine. The reaction is preferably carried out at a temperature between - 10 DEG  C. and 100 DEG  C. The reaction may be carried out in an inert gas atmosphere, e.g. N or A, and also in a solvent. Suitable solvents are liquid saturated aliphatic hydrocarbons, liquid aromatic hydrocarbons and dialkyl ethers.  Reference has been directed by the Comptroller to Specification 888,648.
Patent GB-659877-A (GB)
Title: Improvements in earthenware pipe extrusion machines
IPC: B28B21/54
Filed: 1949-07-13
Abstract: 659,877. Extruding earthenware pipes. CLARKS POTTERIES, Ltd. July 13, 1949, No. 18506. Convention date, Aug. 11, 1948. [Class 87 (ii)] An earthenware pipe extrusion machine has, for the formation of an inspection box, an outer die which is designed to present in turn a round orifice and a substantially D-shaped orifice, a deflector plate 5 being movable simultaneously with the change of the die from a neutral position when the round orifice is presented to a position in which it restrains flow of clay to the part of the die forming the inspection-box when the D -shaped orifice is presented. The deflector plate 5, pivoted at 7, and the die section 14, slidable in guides 15, are connected by links 16, 8, 19 to a common bell-crank 17 actuated by lever 17b. The flanging die 9, in two halves 9a, 9b hinged at 10, is first closed and the flange 13c formed about the core 11. Next, with the die section 14 in the closed position and the deflector plate 5 central, a short circular portion 13b is extruded. Then, with the flanging die 9 open, the die section 14 is withdrawn to the position shown and a short D-section portion which includes inspection-box 13a is extruded. During this latter operation the deflector 5 will be tilted as shown to prevent excessive flow of clay through the wider part of the D-shaped orifice. Finally the die-section 14 is closed and the rest of the pipe extruded. Curved pipes may be made by the method described in Specification 630,047.
Patent GB-237607-A (GB)
Title: Apparatus for atomizing liquids
IPC: A23C1/04
Filed: 1925-07-21
Abstract: 237,607. Nyrop, A. July 25, 1924, [Convention date]. Rotary apparatus; air-pressure sprayers.- Apparatus for atomizing liquids comprises a stationary inverted bell - mouthed cone 1, having a turned inner surface and a sharp lower edge 2, disposed above a disc 3 mounted on a spindle 5 and revolving at high speed. The upper surface of the disc 3 is turned to paraboloid form, and its edge 4 is sharp and is disposed close to the edge 2 of the cone 1, forming a norrow gap. Compressed air is fed into the cone, and the liquid to be atomized is fed to the disc 3 near its centre by a pipe 6. Alternatively, the spindle 5 may be made hollow to serve as a supply pipe. The liquid emerges from the gap between the disc and the cone in a fine state of division, with each individual particle rotating about its axis. Thus in atomizing an emulsion such as milk the particles consist of minute globules of fat coated with a watery solution of greater specific gravity which forms a protective covering. The Specification as open to inspection under Sect. 91 (3) (a) states that by suitably choosing the material of the cone and disc, the liquid may be exposed to electric action while emerging from the gap. This subject-matter does not appear in the Specification as accepted.
Patent GB-1511938-A (GB)
Title: Method of erecting a tower structure
IPC: B66C23/32
Filed: 1976-05-06
Abstract: 1511938 Towers for cranes H TAX 6 May 1976 [9 May 1975] 18642/76 Heading B8H In a method of erecting a tower structure, shown as a tower for a tower crane superstructure 7, comprising one tower stage formed by sections 14 of relatively large cross-section and another tower stage formed by extension sections 9 of relatively small cross-section, using a climbing top cover 5, a first assembly phase includes raising the climbing top cover 5 on a climbing section 10 supported by disengageable bars 4 on an undercarriage 1, the top cover 5 being guided on the section 10 by guide pieces 11. Panels 13 forming a first section 14 are now added, Fig. 3, the top cover 5 supported thereon by slide bolts 6, the bars 4 released and the section 10 raised and the bars 4 re-engaged, Fig. 5. Further sections 14 can be similarly added. When sufficient sections 14 have been added the climbing section 10, which initially comprises a transition section 3 and an extension section 9, Fig. 2 (not shown), has its transition section 3 connected to the uppermost section 14 and supported there by a frame 15. In a second assembly phase additional extension sections 9 are added to the climbing section 10, Fig. 9, the top cover 5 being caused to climb up the upper tower stage so extension progress. As shown a piston- and-cylinder unit 12 is used in thrust-type operation to raise the top cover 5 and in pulltype operation to draw up the climbing section 10.
Patent GB-713086-A (GB)
Title: Improvements in and relating to poppet or the like valve gear mechanism
IPC: F16K31/53
Filed: 1951-08-08
Abstract: 713,086. Engine valve-gear. NORTH EASTERN MARINE ENGINEERING CO. (1938), Ltd., and HUNTER, H. Aug. 8, 1952 [Aug. 8, 1951], No. 18711/51. Class 122(2) [Also in Group XXVII] An engine valve gear mechanism comprises a tappet 20 screw threaded into one end of a tappet sleeve 22 slidable in a fixed guide bush 24 and having at its other end means, such as a roller 18, engaging a cam, the end of the sleeve 22 into which the tappet is screwed being arranged to project above the guide bush and having a transverse slot 44 extending through a substantial portion of the sleeve and an axial slot 52 above the transverse slot thus forming two flexible arms, each carrying a lug 50, which may be drawn together by means such as a nut 57 and bolt 56 to lock the tappet 20 in the sleeve 22 after adjustment therein. The roller 18 is located in a transverse slot 28 in the lower end of the sleeve 22 and rotatably mounted on a pin 34 journalled in the depending portions 30 of the sleeve and having ends 42 with parallel vertical faces slidable in internal slots 40 in the guide bush 24. The contacting surfaces of the tappet sleeve 22 and guide bush 24 are lubricated by oil supplied from an external source through a bore in the bush 24 to an oil groove 68 in the bush and some of this oil passes via a groove 70 and ducts 72 to the interior of the sleeve which acts as a reservoir to which further oil is supplied through ducts 60 in the tappet and from which oil passes through ducts 76, 78, 80 and 82 to lubricate the roller bearing surface and the ends 42 of the roller pin. Two opposing tappets according to the invention may be operated by one cam.
Patent GB-247086-A (GB)
Title: Improvements relating to the manufacture of motor radiators and especially to radiatos designed for automobiles and aeroplanes
IPC: F28D1/03
Filed: 1925-07-22
Abstract: 247,086. Bowerbank, J. W. July 22, 1925. Plate apparatus. - In a motor-car or like radiator the plates of the water passages 4 are formed with a double fold 1 at their front and rear edges so that when folded over one another at the top and bottom of the radiator block, six thicknesses 2, 3 of metal are juxtaposed.
Patent GB-716749-A (GB)
Title: Improvements in and relating to internal combustion engine fuel injection pumps
IPC: F02M59/00
Filed: 1952-07-24
Abstract: 716,749. Fuel-injection pumps. HARPER, W. A., POUNDER, C. C., and REBBECK, Sir F. E. July 24, 1952, No. 18734/52. Class 102 (1). In a fuel-injection pump, the plunger 7 is connected to a piston 12 subjected to the compression pressure in the engine cylinder and is moved on its suction stroke by a spring 26. At the end of the suction stroke, the plunger and piston are locked by a toggle 15, 18 biased by a spring 25. A rod 22, actuated by a part of the engine, contacts a lever 21 to release the toggle and allow the fluid pressure acting on the piston 12 to cause the injection; the rod 22 is adjustable to vary the time of injection. A regulating valve 28 controls the release of fluid from the cylinder 13 to control the speed of injection and a fluid trapped in the end of the cylinder forms a cushion. The plunger 7 is rotated and has control edges to vary the amount of the injection.
Patent GB-403319-A (GB)
Title: Improvements relating to variable speed driving mechanisms for motor vehicles
IPC: F16D23/06
Filed: 1933-07-01
Abstract: 403,319. Change-speed gearing ; claw clutches. MORRIS MOTORS, Ltd., and THOMAS, W. J., Gosford Street, Coventry. July 1, 1933, No. 18749. [Class 80 (ii).] Relates to means for synchronizing claw clutches in changespeed gearing. The sliding clutch member is in two parts, an outer claw sleeve b, Fig. 3, splined on an inner member a which is in turn splined on a driven shaft c. A selector bar e engages the sleeve b, which carries the member a along with it in the first part of a striking displacement from a neutral position, a spring-pressed ball f in the member a engaging a middle notch h in the sleeve b. This striking displacement is arrested when a frictional drag ring o carried by the member a engages a friction clutch surface m on a claw clutch member i with which sleeve b is to be positively engaged. The drag ring o has one or more lugs q projecting outwards through gaps r in an overhanging part of the member a so that the drag ring can turn relatively as the lugs q move from end to end of the gaps r. The claw sleeve b has inwardly-projecting clutch and spline teeth d, Fig. 2. As shown in Fig. 5, two of the teeth d in line with each gap r and denoted d<1> are shortened or cut away, and there is a tooth between them removed so as to leave a space t. When the leftward striking displacement has been stopped by the drag ring o, the parts are in the position shown in Fig. 5, when an inclined shoulder u on one of the mutilated teeth d<1> engages an inclined flank v on the back of the lug q. The frictionclutch drag on the ring o brings the teeth of the sleeve b into synchronism with the teeth of the coacting claw member i, whereupon the lug q is cammed to the middle of the gap r by the inclines u, v and the sleeve b slides on into full engagement with the teeth i. At the same time, the ball f, Fig. 3, rides out of the middle notch h and into a side notch h<1>, and the lug q is accommodated in the length of the space t, Fig. 5. A double-ended sleeve b is shown adapted to engage claw members i, j, alternatively.
Patent GB-1012902-A (GB)
Title: Windshield wiper blade assembly
IPC: B60S1/38
Filed: 1963-05-13
Abstract: 1,012,902. Windscreen wiper element backing strips. W. D. APPEL. May 13, 1963 [May 21, 1962], No. 18768/63. Heading A4F. A windscreen wiper blade assembly comprises a single flexible spring backbone element 36 having co-ordinated length, width, thickness modules of elasticity and free form longitudinal curvature exceeding any subtended windscreen curvature, to provide a parabolic effect in spring rate normal to a windscreen surface against which it is adapted to engage to provide progressive wrapping contact from ends to centre as increasing normal loading is applied through attachment means 41 for an actuating arm located adjacent its centre. The element 36 is secured to a flexible wiper blade 37 by bonding or a flange and slot fitting. By tapering the width or thickness of the element 36 parabolically, uniform bending stress and pressure loading may be obtained.
Patent GB-1012667-A (GB)
Title: An apparatus for the determination of small amounts of rare gases, namely argon
IPC: G01N33/24
Filed: 1963-05-13
Abstract: 1,012,667. Gas analysis. CESKOSLOVENSKA AKADEMI VED. May 13,1963 [May 12, 1962], No. 18769/63. Heading G1B. Apparatus for separating and measuring small quantities of rare gases comprises a tube 1 from which the gases are liberated by action of heat and an analysis device including a main and an auxiliary vacuum line, the main vacuum line being divided into three sections or stages by means of stopcocks. In operation a weighed sample is placed in the tube 1, and the apparatus evacuated. The sample is heated to its melting point to release argon and other gases and the other gases are removed by passage through the apparatus in the three stages. In the first stage the gases pass to a device 7 containing heated cupric oxide and traps 89 which are cooled by liquid nitrogen, the remaining gases being absorbed on active carbon or a molecular sieve in absorbers 10,11. In the second stage the gases pass to a device 12 containing calcium and are subsequently absorbed in an absorber 13, and in the third stage the gases pass to a device 14 containing titanium and through a liquid nitrogen cooled trap 15, the pressure of the pure argon remaining being measured using a Macleod gauge 17. The argon may be then absorbed on active carbon or a molecular sieve in an absorber 16, which may be sealed and removed for subsequent determination of the isotopic composition of the gas. Since each of the three stages is separate, three samples may be treated concurrently with the gases from each sample in successive stages. Air may be admitted to each stage by way of the auxiliary vacuum line and a stop cock 35 and drying device 22.
Patent GB-904157-A (GB)
Title: Improvements in or relating to undercarriages for helicopters
IPC: B64C25/32
Filed: 1960-05-27
Abstract: 904,157. Skid brakes. GRIHANGNE, A. E., and FATOU, A. May 27, 1960 [May 30, 1959], No. 18810/60. Class 103 (1). [Also in Group XXXIII] A helicopter normally lands on suction cups 9 extended from a float 1, shown in cross-section, by inflation of a flexible tube 6, as in the righthand side of the Figure. For landing on an unprepared surface, the cups are retracted, as in the left-hand side of the Figure, by deflation of tube 6, so that skids or shoes 12 of wearresisting anti-skid material contact the ground.
Patent GB-836176-A (GB)
Title: Improvements in or relating to the cleaning of pipes
IPC: B08B9/02
Filed: 1958-06-12
Abstract: 836,176. Pipe cleaning devices. LEMFORDER METALLWARENGESELLSCHAFT. June 12, 1958 [June 15, 1957], No. 18843/58. Class 99(2). A scraper for cleaning the internal surfaces of pipes, e.g. rising pipes in petroleum pumping wells, comprises a sleeve of resilient synthetic plastic, e.g. polyurethane, and extending radially outwards therefrom a scraper blade of resilient synthetic plastic, the sleeve encircling and gripping rigidly a pipe rod so that longitudinal movement of the pipe rod within the pipe to be cleaned causes the scraper blade in pressure contact with the internal surface of the pipe to clean the said surface. As shown, the sleeve is formed of semi-cylindrical elements 1, 2 integral with two helically shaped portions 3, 4 forming the scraper blade and is secured to the pipe, not shown, by clips 7, 8 retained against flanges 5, 6 on the sleeve. Alternatively the sleeve is formed from a plurality of part cylindrical elements. The thickness of the scraper blade tapers towards its circumferential edge.
Patent GB-1110712-A (GB)
Title: Improvements relating to fluid-flow metering means
IPC: G01F1/44
Filed: 1965-05-05
Abstract: 1,110,712. Flowmeter. M. L. NATHAN. May 4, 1966 [May 5, 1965], No.18938/65. Heading G1R. A device for measuring fluid-flow in a duct 13 comprises an upstream body 1, 3 formed as a convergent-divergent (or Venturi) tube having a pipe 4A for transmitting the throat pressure of fluid flowing through the tube to a manometer and means 14 for transmitting a total head pressure in the fluid to be differentiated from the throat pressure. A downstream body 10, supported by a strut 12 has a ring 12A which is secured in a groove 9A in the body 3. A slot 14B opens into a bore in the rod 14, the bore connecting with the manometer to indicate the difference between the total head pressure and the throat pressure. Annular plates 15 may be used to vary the external diameter of the body 3 to calibrate the flowmeter. The bodies 1, 3, 10 are formed as solids of revolution but in a modification they are of flattened form, having a rectangular cross-section. A pivoted valve plate may be used to automatically control the flow through the convergent-divergent tube, one end of the plate being able to obstruct the outlet of the tube whilst the other end projects into the fluid stream in the duct. The plate may be spring-loaded and designed to enable the response of the flowmeter to be linear.
Patent GB-440711-A (GB)
Title: Improvements in or relating to machines for breaking ice
IPC: F25C5/04
Filed: 1935-07-02
Abstract: 440,711. Roller-and-breast mills. FLEMING, F. A., c/o Grimsby Ice Co., Ltd., and GRIMSBY ICE CO., Ltd., Fish Docks, Grimsby. July 2, 1935, No. 18940. [Class 59] In a machine for breaking ice &c. comprising a rotary drum 11 provided with tangential spikes 12 which co-operates with an inclined feed plate 14, the lower end of the feed plate is provided with a series of upstanding hollow, triangular prisms 20, the valleys between which form spaces for the spikes and broken ice. The ridges may be continuous or may be separated as shown, the part 20 being hollow for the passage of crushed ice and the part 21 acting as a guide. The feed plate is hinged about a bolt 15 and the lower end may be secured by shear bolts 16.
Patent GB-1386473-A (GB)
Title: Electrically heated oven for firing ceramic material
IPC: F27B17/02
Filed: 1972-04-24
Abstract: 1386473 Laboratory furnaces K HINTENBERGER 24 April 1972 [27 April 1971] 18947/72 Heading F4B An electrically heated vacuum oven for firing ceramic material, e.g. false teeth, comprises a vertical chamber, open at the bottom to receive a carrier 5 for the object to be fired and a pneumatic cylinder 2 for moving the carrier vertically into the chamber, a plate 6 then making a vacuum-tight closure, there also being provided a mechanically operated lifting finger 6 alongside the cylinder 2 operated through connecting rod 21 by a crank 12. The finger 6 bears against the closing plate and serves to raise the carrier gently into the oven where it is retained by the pneumatic cylinder. The finger 6 is then lowered by continued rotation of crank 12 which, after a further predetermined period, operates switch 9 to cause cylinder 2 to rapidly withdraw the carrier from the oven. The object on the carrier then cools until the end of the cycle when switch 13 is operated. Another object is then placed on the carrier and raised slowly into the oven.